diff options
Diffstat (limited to 'exa')
| -rw-r--r-- | exa/Makefile.am | 30 | ||||
| -rw-r--r-- | exa/Makefile.in | 782 | ||||
| -rw-r--r-- | exa/exa.c | 1158 | ||||
| -rw-r--r-- | exa/exa.h | 843 | ||||
| -rw-r--r-- | exa/exa_accel.c | 1306 | ||||
| -rw-r--r-- | exa/exa_classic.c | 266 | ||||
| -rw-r--r-- | exa/exa_driver.c | 226 | ||||
| -rw-r--r-- | exa/exa_glyphs.c | 863 | ||||
| -rw-r--r-- | exa/exa_migration_classic.c | 745 | ||||
| -rw-r--r-- | exa/exa_migration_mixed.c | 261 | ||||
| -rw-r--r-- | exa/exa_mixed.c | 290 | ||||
| -rw-r--r-- | exa/exa_offscreen.c | 696 | ||||
| -rw-r--r-- | exa/exa_priv.h | 725 | ||||
| -rw-r--r-- | exa/exa_render.c | 1256 | ||||
| -rw-r--r-- | exa/exa_unaccel.c | 765 |
15 files changed, 10212 insertions, 0 deletions
diff --git a/exa/Makefile.am b/exa/Makefile.am new file mode 100644 index 0000000..8b759cd --- /dev/null +++ b/exa/Makefile.am @@ -0,0 +1,30 @@ +noinst_LTLIBRARIES = libexa.la + +# Override these since EXA doesn't need them and the needed files aren't +# built (in hw/xfree86/os-support/solaris) until after EXA is built +SOLARIS_ASM_CFLAGS="" + +if XORG +sdk_HEADERS = exa.h +endif + +INCLUDES = \ + $(XORG_INCS) \ + -I$(srcdir)/../miext/cw + +AM_CFLAGS = $(XORG_CFLAGS) $(DIX_CFLAGS) + +libexa_la_SOURCES = \ + exa.c \ + exa.h \ + exa_classic.c \ + exa_migration_classic.c \ + exa_driver.c \ + exa_mixed.c \ + exa_migration_mixed.c \ + exa_accel.c \ + exa_glyphs.c \ + exa_offscreen.c \ + exa_render.c \ + exa_priv.h \ + exa_unaccel.c diff --git a/exa/Makefile.in b/exa/Makefile.in new file mode 100644 index 0000000..df5abcd --- /dev/null +++ b/exa/Makefile.in @@ -0,0 +1,782 @@ +# Makefile.in generated by automake 1.11.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, +# 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free Software Foundation, +# Inc. +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; without +# even the implied warranty of MERCHANTABILITY or FITNESS FOR A +# PARTICULAR PURPOSE. + +@SET_MAKE@ + + +VPATH = @srcdir@ +pkgdatadir = $(datadir)/@PACKAGE@ +pkgincludedir = $(includedir)/@PACKAGE@ +pkglibdir = $(libdir)/@PACKAGE@ +pkglibexecdir = $(libexecdir)/@PACKAGE@ +am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c +install_sh_SCRIPT = $(install_sh) -c +INSTALL_HEADER = $(INSTALL_DATA) +transform = $(program_transform_name) +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +build_triplet = @build@ +host_triplet = @host@ +subdir = exa +DIST_COMMON = $(am__sdk_HEADERS_DIST) $(srcdir)/Makefile.am \ + $(srcdir)/Makefile.in +ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 +am__aclocal_m4_deps = $(top_srcdir)/m4/ac_define_dir.m4 \ + $(top_srcdir)/m4/ax_tls.m4 $(top_srcdir)/configure.ac +am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \ + $(ACLOCAL_M4) +mkinstalldirs = $(install_sh) -d +CONFIG_HEADER = $(top_builddir)/include/do-not-use-config.h \ + $(top_builddir)/include/xorg-server.h \ + $(top_builddir)/include/dix-config.h \ + $(top_builddir)/include/xorg-config.h \ + $(top_builddir)/include/xkb-config.h \ + $(top_builddir)/include/xwin-config.h \ + $(top_builddir)/include/kdrive-config.h \ + $(top_builddir)/include/version-config.h +CONFIG_CLEAN_FILES = +CONFIG_CLEAN_VPATH_FILES = +LTLIBRARIES = $(noinst_LTLIBRARIES) +libexa_la_LIBADD = 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that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Keith Packard not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Keith Packard makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +/** @file + * This file covers the initialization and teardown of EXA, and has various + * functions not responsible for performing rendering, pixmap migration, or + * memory management. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <stdlib.h> + +#include "exa_priv.h" +#include "exa.h" + +DevPrivateKeyRec exaScreenPrivateKeyRec; +DevPrivateKeyRec exaPixmapPrivateKeyRec; +DevPrivateKeyRec exaGCPrivateKeyRec; + +#ifdef MITSHM +static ShmFuncs exaShmFuncs = { NULL, NULL }; +#endif + +/** + * exaGetPixmapOffset() returns the offset (in bytes) within the framebuffer of + * the beginning of the given pixmap. + * + * Note that drivers are free to, and often do, munge this offset as necessary + * for handing to the hardware -- for example, translating it into a different + * aperture. This function may need to be extended in the future if we grow + * support for having multiple card-accessible offscreen, such as an AGP memory + * pool alongside the framebuffer pool. + */ +unsigned long +exaGetPixmapOffset(PixmapPtr pPix) +{ + ExaScreenPriv (pPix->drawable.pScreen); + ExaPixmapPriv (pPix); + + return (CARD8 *)pExaPixmap->fb_ptr - pExaScr->info->memoryBase; +} + +void * +exaGetPixmapDriverPrivate(PixmapPtr pPix) +{ + ExaPixmapPriv(pPix); + + return pExaPixmap->driverPriv; +} + +/** + * exaGetPixmapPitch() returns the pitch (in bytes) of the given pixmap. + * + * This is a helper to make driver code more obvious, due to the rather obscure + * naming of the pitch field in the pixmap. + */ +unsigned long +exaGetPixmapPitch(PixmapPtr pPix) +{ + return pPix->devKind; +} + +/** + * exaGetPixmapSize() returns the size in bytes of the given pixmap in video + * memory. Only valid when the pixmap is currently in framebuffer. + */ +unsigned long +exaGetPixmapSize(PixmapPtr pPix) +{ + ExaPixmapPrivPtr pExaPixmap; + + pExaPixmap = ExaGetPixmapPriv(pPix); + if (pExaPixmap != NULL) + return pExaPixmap->fb_size; + return 0; +} + +/** + * exaGetDrawablePixmap() returns a backing pixmap for a given drawable. + * + * @param pDrawable the drawable being requested. + * + * This function returns the backing pixmap for a drawable, whether it is a + * redirected window, unredirected window, or already a pixmap. Note that + * coordinate translation is needed when drawing to the backing pixmap of a + * redirected window, and the translation coordinates are provided by calling + * exaGetOffscreenPixmap() on the drawable. + */ +PixmapPtr +exaGetDrawablePixmap(DrawablePtr pDrawable) +{ + if (pDrawable->type == DRAWABLE_WINDOW) + return pDrawable->pScreen->GetWindowPixmap ((WindowPtr) pDrawable); + else + return (PixmapPtr) pDrawable; +} + +/** + * Sets the offsets to add to coordinates to make them address the same bits in + * the backing drawable. These coordinates are nonzero only for redirected + * windows. + */ +void +exaGetDrawableDeltas (DrawablePtr pDrawable, PixmapPtr pPixmap, + int *xp, int *yp) +{ +#ifdef COMPOSITE + if (pDrawable->type == DRAWABLE_WINDOW) { + *xp = -pPixmap->screen_x; + *yp = -pPixmap->screen_y; + return; + } +#endif + + *xp = 0; + *yp = 0; +} + +/** + * exaPixmapDirty() marks a pixmap as dirty, allowing for + * optimizations in pixmap migration when no changes have occurred. + */ +void +exaPixmapDirty (PixmapPtr pPix, int x1, int y1, int x2, int y2) +{ + BoxRec box; + RegionRec region; + + box.x1 = max(x1, 0); + box.y1 = max(y1, 0); + box.x2 = min(x2, pPix->drawable.width); + box.y2 = min(y2, pPix->drawable.height); + + if (box.x1 >= box.x2 || box.y1 >= box.y2) + return; + + RegionInit(®ion, &box, 1); + DamageDamageRegion(&pPix->drawable, ®ion); + RegionUninit(®ion); +} + +static int +exaLog2(int val) +{ + int bits; + + if (val <= 0) + return 0; + for (bits = 0; val != 0; bits++) + val >>= 1; + return bits - 1; +} + +void +exaSetAccelBlock(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap, + int w, int h, int bpp) +{ + pExaPixmap->accel_blocked = 0; + + if (pExaScr->info->maxPitchPixels) { + int max_pitch = pExaScr->info->maxPitchPixels * bits_to_bytes(bpp); + + if (pExaPixmap->fb_pitch > max_pitch) + pExaPixmap->accel_blocked |= EXA_RANGE_PITCH; + } + + if (pExaScr->info->maxPitchBytes && + pExaPixmap->fb_pitch > pExaScr->info->maxPitchBytes) + pExaPixmap->accel_blocked |= EXA_RANGE_PITCH; + + if (w > pExaScr->info->maxX) + pExaPixmap->accel_blocked |= EXA_RANGE_WIDTH; + + if (h > pExaScr->info->maxY) + pExaPixmap->accel_blocked |= EXA_RANGE_HEIGHT; +} + +void +exaSetFbPitch(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap, + int w, int h, int bpp) +{ + if (pExaScr->info->flags & EXA_OFFSCREEN_ALIGN_POT && w != 1) + pExaPixmap->fb_pitch = bits_to_bytes((1 << (exaLog2(w - 1) + 1)) * bpp); + else + pExaPixmap->fb_pitch = bits_to_bytes(w * bpp); + + pExaPixmap->fb_pitch = EXA_ALIGN(pExaPixmap->fb_pitch, + pExaScr->info->pixmapPitchAlign); +} + +/** + * Returns TRUE if the pixmap is not movable. This is the case where it's a + * pixmap which has no private (almost always bad) or it's a scratch pixmap created by + * some X Server internal component (the score says it's pinned). + */ +Bool +exaPixmapIsPinned (PixmapPtr pPix) +{ + ExaPixmapPriv (pPix); + + if (pExaPixmap == NULL) + EXA_FatalErrorDebugWithRet(("EXA bug: exaPixmapIsPinned was called on a non-exa pixmap.\n"), TRUE); + + return pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED; +} + +/** + * exaPixmapHasGpuCopy() is used to determine if a pixmap is in offscreen + * memory, meaning that acceleration could probably be done to it, and that it + * will need to be wrapped by PrepareAccess()/FinishAccess() when accessing it + * with the CPU. + * + * Note that except for UploadToScreen()/DownloadFromScreen() (which explicitly + * deal with moving pixmaps in and out of system memory), EXA will give drivers + * pixmaps as arguments for which exaPixmapHasGpuCopy() is TRUE. + * + * @return TRUE if the given drawable is in framebuffer memory. + */ +Bool +exaPixmapHasGpuCopy(PixmapPtr pPixmap) +{ + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPriv(pScreen); + + if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)) + return FALSE; + + return (*pExaScr->pixmap_has_gpu_copy)(pPixmap); +} + +/** + * exaDrawableIsOffscreen() is a convenience wrapper for exaPixmapHasGpuCopy(). + */ +Bool +exaDrawableIsOffscreen (DrawablePtr pDrawable) +{ + return exaPixmapHasGpuCopy (exaGetDrawablePixmap (pDrawable)); +} + +/** + * Returns the pixmap which backs a drawable, and the offsets to add to + * coordinates to make them address the same bits in the backing drawable. + */ +PixmapPtr +exaGetOffscreenPixmap (DrawablePtr pDrawable, int *xp, int *yp) +{ + PixmapPtr pPixmap = exaGetDrawablePixmap (pDrawable); + + exaGetDrawableDeltas (pDrawable, pPixmap, xp, yp); + + if (exaPixmapHasGpuCopy (pPixmap)) + return pPixmap; + else + return NULL; +} + +/** + * Returns TRUE if the pixmap GPU copy is being accessed. + */ +Bool +ExaDoPrepareAccess(PixmapPtr pPixmap, int index) +{ + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPriv (pScreen); + ExaPixmapPriv(pPixmap); + Bool has_gpu_copy, ret; + int i; + + if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)) + return FALSE; + + if (pExaPixmap == NULL) + EXA_FatalErrorDebugWithRet(("EXA bug: ExaDoPrepareAccess was called on a non-exa pixmap.\n"), FALSE); + + /* Handle repeated / nested calls. */ + for (i = 0; i < EXA_NUM_PREPARE_INDICES; i++) { + if (pExaScr->access[i].pixmap == pPixmap) { + pExaScr->access[i].count++; + return pExaScr->access[i].retval; + } + } + + /* If slot for this index is taken, find an empty slot */ + if (pExaScr->access[index].pixmap) { + for (index = EXA_NUM_PREPARE_INDICES - 1; index >= 0; index--) + if (!pExaScr->access[index].pixmap) + break; + } + + /* Access to this pixmap hasn't been prepared yet, so data pointer should be NULL. */ + if (pPixmap->devPrivate.ptr != NULL) { + EXA_FatalErrorDebug(("EXA bug: pPixmap->devPrivate.ptr was %p, but should have been NULL.\n", + pPixmap->devPrivate.ptr)); + } + + has_gpu_copy = exaPixmapHasGpuCopy(pPixmap); + + if (has_gpu_copy && pExaPixmap->fb_ptr) { + pPixmap->devPrivate.ptr = pExaPixmap->fb_ptr; + ret = TRUE; + } else { + pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr; + ret = FALSE; + } + + /* Store so we can handle repeated / nested calls. */ + pExaScr->access[index].pixmap = pPixmap; + pExaScr->access[index].count = 1; + + if (!has_gpu_copy) + goto out; + + exaWaitSync (pScreen); + + if (pExaScr->info->PrepareAccess == NULL) + goto out; + + if (index >= EXA_PREPARE_AUX_DEST && + !(pExaScr->info->flags & EXA_SUPPORTS_PREPARE_AUX)) { + if (pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED) + FatalError("Unsupported AUX indices used on a pinned pixmap.\n"); + exaMoveOutPixmap (pPixmap); + ret = FALSE; + goto out; + } + + if (!(*pExaScr->info->PrepareAccess) (pPixmap, index)) { + if (pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED && + !(pExaScr->info->flags & EXA_MIXED_PIXMAPS)) + FatalError("Driver failed PrepareAccess on a pinned pixmap.\n"); + exaMoveOutPixmap (pPixmap); + ret = FALSE; + goto out; + } + + ret = TRUE; + +out: + pExaScr->access[index].retval = ret; + return ret; +} + +/** + * exaPrepareAccess() is EXA's wrapper for the driver's PrepareAccess() handler. + * + * It deals with waiting for synchronization with the card, determining if + * PrepareAccess() is necessary, and working around PrepareAccess() failure. + */ +void +exaPrepareAccess(DrawablePtr pDrawable, int index) +{ + PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable); + ExaScreenPriv(pDrawable->pScreen); + + if (pExaScr->prepare_access_reg) + pExaScr->prepare_access_reg(pPixmap, index, NULL); + else + (void)ExaDoPrepareAccess(pPixmap, index); +} + +/** + * exaFinishAccess() is EXA's wrapper for the driver's FinishAccess() handler. + * + * It deals with calling the driver's FinishAccess() only if necessary. + */ +void +exaFinishAccess(DrawablePtr pDrawable, int index) +{ + ScreenPtr pScreen = pDrawable->pScreen; + ExaScreenPriv (pScreen); + PixmapPtr pPixmap = exaGetDrawablePixmap (pDrawable); + ExaPixmapPriv (pPixmap); + int i; + + if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)) + return; + + if (pExaPixmap == NULL) + EXA_FatalErrorDebugWithRet(("EXA bug: exaFinishAccesss was called on a non-exa pixmap.\n"),); + + /* Handle repeated / nested calls. */ + for (i = 0; i < EXA_NUM_PREPARE_INDICES; i++) { + if (pExaScr->access[i].pixmap == pPixmap) { + if (--pExaScr->access[i].count > 0) + return; + break; + } + } + + /* Catch unbalanced Prepare/FinishAccess calls. */ + if (i == EXA_NUM_PREPARE_INDICES) + EXA_FatalErrorDebugWithRet(("EXA bug: FinishAccess called without PrepareAccess for pixmap 0x%p.\n", + pPixmap),); + + pExaScr->access[i].pixmap = NULL; + + /* We always hide the devPrivate.ptr. */ + pPixmap->devPrivate.ptr = NULL; + + /* Only call FinishAccess if PrepareAccess was called and succeeded. */ + if (!pExaScr->info->FinishAccess || !pExaScr->access[i].retval) + return; + + if (i >= EXA_PREPARE_AUX_DEST && + !(pExaScr->info->flags & EXA_SUPPORTS_PREPARE_AUX)) { + ErrorF("EXA bug: Trying to call driver FinishAccess hook with " + "unsupported index EXA_PREPARE_AUX*\n"); + return; + } + + (*pExaScr->info->FinishAccess) (pPixmap, i); +} + + +/** + * Helper for things common to all schemes when a pixmap is destroyed + */ +void +exaDestroyPixmap(PixmapPtr pPixmap) +{ + ExaScreenPriv(pPixmap->drawable.pScreen); + int i; + + /* Finish access if it was prepared (e.g. pixmap created during + * software fallback) + */ + for (i = 0; i < EXA_NUM_PREPARE_INDICES; i++) { + if (pExaScr->access[i].pixmap == pPixmap) { + exaFinishAccess(&pPixmap->drawable, i); + pExaScr->access[i].pixmap = NULL; + break; + } + } +} + + +/** + * Here begins EXA's GC code. + * Do not ever access the fb/mi layer directly. + */ + +static void +exaValidateGC(GCPtr pGC, + unsigned long changes, + DrawablePtr pDrawable); + +static void +exaDestroyGC(GCPtr pGC); + +static void +exaChangeGC (GCPtr pGC, + unsigned long mask); + +static void +exaCopyGC (GCPtr pGCSrc, + unsigned long mask, + GCPtr pGCDst); + +static void +exaChangeClip (GCPtr pGC, + int type, + pointer pvalue, + int nrects); + +static void +exaCopyClip(GCPtr pGCDst, GCPtr pGCSrc); + +static void +exaCopyClip(GCPtr pGCDst, GCPtr pGCSrc); + +static void +exaDestroyClip(GCPtr pGC); + +const GCFuncs exaGCFuncs = { + exaValidateGC, + exaChangeGC, + exaCopyGC, + exaDestroyGC, + exaChangeClip, + exaDestroyClip, + exaCopyClip +}; + +static void +exaValidateGC(GCPtr pGC, + unsigned long changes, + DrawablePtr pDrawable) +{ + /* fbValidateGC will do direct access to pixmaps if the tiling has changed. + * Do a few smart things so fbValidateGC can do it's work. + */ + + ScreenPtr pScreen = pDrawable->pScreen; + ExaScreenPriv(pScreen); + ExaGCPriv(pGC); + PixmapPtr pTile = NULL; + Bool finish_current_tile = FALSE; + + /* Either of these conditions is enough to trigger access to a tile pixmap. */ + /* With pGC->tileIsPixel == 1, you run the risk of dereferencing an invalid tile pixmap pointer. */ + if (pGC->fillStyle == FillTiled || ((changes & GCTile) && !pGC->tileIsPixel)) { + pTile = pGC->tile.pixmap; + + /* Sometimes tile pixmaps are swapped, you need access to: + * - The current tile if it depth matches. + * - Or the rotated tile if that one matches depth and !(changes & GCTile). + * - Or the current tile pixmap and a newly created one. + */ + if (pTile && pTile->drawable.depth != pDrawable->depth && !(changes & GCTile)) { + PixmapPtr pRotatedTile = fbGetRotatedPixmap(pGC); + if (pRotatedTile && pRotatedTile->drawable.depth == pDrawable->depth) + pTile = pRotatedTile; + else + finish_current_tile = TRUE; /* CreatePixmap will be called. */ + } + } + + if (pGC->stipple) + exaPrepareAccess(&pGC->stipple->drawable, EXA_PREPARE_MASK); + if (pTile) + exaPrepareAccess(&pTile->drawable, EXA_PREPARE_SRC); + + /* Calls to Create/DestroyPixmap have to be identified as special. */ + pExaScr->fallback_counter++; + swap(pExaGC, pGC, funcs); + (*pGC->funcs->ValidateGC)(pGC, changes, pDrawable); + swap(pExaGC, pGC, funcs); + pExaScr->fallback_counter--; + + if (pTile) + exaFinishAccess(&pTile->drawable, EXA_PREPARE_SRC); + if (finish_current_tile && pGC->tile.pixmap) + exaFinishAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_AUX_DEST); + if (pGC->stipple) + exaFinishAccess(&pGC->stipple->drawable, EXA_PREPARE_MASK); +} + +/* Is exaPrepareAccessGC() needed? */ +static void +exaDestroyGC(GCPtr pGC) +{ + ExaGCPriv(pGC); + swap(pExaGC, pGC, funcs); + (*pGC->funcs->DestroyGC)(pGC); + swap(pExaGC, pGC, funcs); +} + +static void +exaChangeGC (GCPtr pGC, + unsigned long mask) +{ + ExaGCPriv(pGC); + swap(pExaGC, pGC, funcs); + (*pGC->funcs->ChangeGC) (pGC, mask); + swap(pExaGC, pGC, funcs); +} + +static void +exaCopyGC (GCPtr pGCSrc, + unsigned long mask, + GCPtr pGCDst) +{ + ExaGCPriv(pGCDst); + swap(pExaGC, pGCDst, funcs); + (*pGCDst->funcs->CopyGC) (pGCSrc, mask, pGCDst); + swap(pExaGC, pGCDst, funcs); +} + +static void +exaChangeClip (GCPtr pGC, + int type, + pointer pvalue, + int nrects) +{ + ExaGCPriv(pGC); + swap(pExaGC, pGC, funcs); + (*pGC->funcs->ChangeClip) (pGC, type, pvalue, nrects); + swap(pExaGC, pGC, funcs); +} + +static void +exaCopyClip(GCPtr pGCDst, GCPtr pGCSrc) +{ + ExaGCPriv(pGCDst); + swap(pExaGC, pGCDst, funcs); + (*pGCDst->funcs->CopyClip)(pGCDst, pGCSrc); + swap(pExaGC, pGCDst, funcs); +} + +static void +exaDestroyClip(GCPtr pGC) +{ + ExaGCPriv(pGC); + swap(pExaGC, pGC, funcs); + (*pGC->funcs->DestroyClip)(pGC); + swap(pExaGC, pGC, funcs); +} + +/** + * exaCreateGC makes a new GC and hooks up its funcs handler, so that + * exaValidateGC() will get called. + */ +static int +exaCreateGC (GCPtr pGC) +{ + ScreenPtr pScreen = pGC->pScreen; + ExaScreenPriv(pScreen); + ExaGCPriv(pGC); + Bool ret; + + swap(pExaScr, pScreen, CreateGC); + if ((ret = (*pScreen->CreateGC) (pGC))) { + wrap(pExaGC, pGC, funcs, (GCFuncs *) &exaGCFuncs); + wrap(pExaGC, pGC, ops, (GCOps *) &exaOps); + } + swap(pExaScr, pScreen, CreateGC); + + return ret; +} + +static Bool +exaChangeWindowAttributes(WindowPtr pWin, unsigned long mask) +{ + Bool ret; + ScreenPtr pScreen = pWin->drawable.pScreen; + ExaScreenPriv(pScreen); + + if ((mask & CWBackPixmap) && pWin->backgroundState == BackgroundPixmap) + exaPrepareAccess(&pWin->background.pixmap->drawable, EXA_PREPARE_SRC); + + if ((mask & CWBorderPixmap) && pWin->borderIsPixel == FALSE) + exaPrepareAccess(&pWin->border.pixmap->drawable, EXA_PREPARE_MASK); + + pExaScr->fallback_counter++; + swap(pExaScr, pScreen, ChangeWindowAttributes); + ret = pScreen->ChangeWindowAttributes(pWin, mask); + swap(pExaScr, pScreen, ChangeWindowAttributes); + pExaScr->fallback_counter--; + + if ((mask & CWBackPixmap) && pWin->backgroundState == BackgroundPixmap) + exaFinishAccess(&pWin->background.pixmap->drawable, EXA_PREPARE_SRC); + if ((mask & CWBorderPixmap) && pWin->borderIsPixel == FALSE) + exaFinishAccess(&pWin->border.pixmap->drawable, EXA_PREPARE_MASK); + + return ret; +} + +static RegionPtr +exaBitmapToRegion(PixmapPtr pPix) +{ + RegionPtr ret; + ScreenPtr pScreen = pPix->drawable.pScreen; + ExaScreenPriv(pScreen); + + exaPrepareAccess(&pPix->drawable, EXA_PREPARE_SRC); + swap(pExaScr, pScreen, BitmapToRegion); + ret = (*pScreen->BitmapToRegion)(pPix); + swap(pExaScr, pScreen, BitmapToRegion); + exaFinishAccess(&pPix->drawable, EXA_PREPARE_SRC); + + return ret; +} + +static Bool +exaCreateScreenResources(ScreenPtr pScreen) +{ + ExaScreenPriv(pScreen); + PixmapPtr pScreenPixmap; + Bool b; + + swap(pExaScr, pScreen, CreateScreenResources); + b = pScreen->CreateScreenResources(pScreen); + swap(pExaScr, pScreen, CreateScreenResources); + + if (!b) + return FALSE; + + pScreenPixmap = pScreen->GetScreenPixmap(pScreen); + + if (pScreenPixmap) { + ExaPixmapPriv(pScreenPixmap); + + exaSetAccelBlock(pExaScr, pExaPixmap, + pScreenPixmap->drawable.width, + pScreenPixmap->drawable.height, + pScreenPixmap->drawable.bitsPerPixel); + } + + return TRUE; +} + +static void +ExaBlockHandler(int screenNum, pointer blockData, pointer pTimeout, + pointer pReadmask) +{ + ScreenPtr pScreen = screenInfo.screens[screenNum]; + ExaScreenPriv(pScreen); + + /* Move any deferred results from a software fallback to the driver pixmap */ + if (pExaScr->deferred_mixed_pixmap) + exaMoveInPixmap_mixed(pExaScr->deferred_mixed_pixmap); + + unwrap(pExaScr, pScreen, BlockHandler); + (*pScreen->BlockHandler) (screenNum, blockData, pTimeout, pReadmask); + wrap(pExaScr, pScreen, BlockHandler, ExaBlockHandler); + + /* The rest only applies to classic EXA */ + if (pExaScr->info->flags & EXA_HANDLES_PIXMAPS) + return; + + /* Try and keep the offscreen memory area tidy every now and then (at most + * once per second) when the server has been idle for at least 100ms. + */ + if (pExaScr->numOffscreenAvailable > 1) { + CARD32 now = GetTimeInMillis(); + + pExaScr->nextDefragment = now + + max(100, (INT32)(pExaScr->lastDefragment + 1000 - now)); + AdjustWaitForDelay(pTimeout, pExaScr->nextDefragment - now); + } +} + +static void +ExaWakeupHandler(int screenNum, pointer wakeupData, unsigned long result, + pointer pReadmask) +{ + ScreenPtr pScreen = screenInfo.screens[screenNum]; + ExaScreenPriv(pScreen); + + unwrap(pExaScr, pScreen, WakeupHandler); + (*pScreen->WakeupHandler) (screenNum, wakeupData, result, pReadmask); + wrap(pExaScr, pScreen, WakeupHandler, ExaWakeupHandler); + + if (result == 0 && pExaScr->numOffscreenAvailable > 1) { + CARD32 now = GetTimeInMillis(); + + if ((int)(now - pExaScr->nextDefragment) > 0) { + ExaOffscreenDefragment(pScreen); + pExaScr->lastDefragment = now; + } + } +} + +/** + * exaCloseScreen() unwraps its wrapped screen functions and tears down EXA's + * screen private, before calling down to the next CloseSccreen. + */ +static Bool +exaCloseScreen(int i, ScreenPtr pScreen) +{ + ExaScreenPriv(pScreen); + PictureScreenPtr ps = GetPictureScreenIfSet(pScreen); + + if (ps->Glyphs == exaGlyphs) + exaGlyphsFini(pScreen); + + if (pScreen->BlockHandler == ExaBlockHandler) + unwrap(pExaScr, pScreen, BlockHandler); + if (pScreen->WakeupHandler == ExaWakeupHandler) + unwrap(pExaScr, pScreen, WakeupHandler); + unwrap(pExaScr, pScreen, CreateGC); + unwrap(pExaScr, pScreen, CloseScreen); + unwrap(pExaScr, pScreen, GetImage); + unwrap(pExaScr, pScreen, GetSpans); + if (pExaScr->SavedCreatePixmap) + unwrap(pExaScr, pScreen, CreatePixmap); + if (pExaScr->SavedDestroyPixmap) + unwrap(pExaScr, pScreen, DestroyPixmap); + if (pExaScr->SavedModifyPixmapHeader) + unwrap(pExaScr, pScreen, ModifyPixmapHeader); + unwrap(pExaScr, pScreen, CopyWindow); + unwrap(pExaScr, pScreen, ChangeWindowAttributes); + unwrap(pExaScr, pScreen, BitmapToRegion); + unwrap(pExaScr, pScreen, CreateScreenResources); + unwrap(pExaScr, ps, Composite); + if (pExaScr->SavedGlyphs) + unwrap(pExaScr, ps, Glyphs); + unwrap(pExaScr, ps, Trapezoids); + unwrap(pExaScr, ps, Triangles); + unwrap(pExaScr, ps, AddTraps); + + free(pExaScr); + + return (*pScreen->CloseScreen) (i, pScreen); +} + +/** + * This function allocates a driver structure for EXA drivers to fill in. By + * having EXA allocate the structure, the driver structure can be extended + * without breaking ABI between EXA and the drivers. The driver's + * responsibility is to check beforehand that the EXA module has a matching + * major number and sufficient minor. Drivers are responsible for freeing the + * driver structure using free(). + * + * @return a newly allocated, zero-filled driver structure + */ +ExaDriverPtr +exaDriverAlloc(void) +{ + return calloc(1, sizeof(ExaDriverRec)); +} + +/** + * @param pScreen screen being initialized + * @param pScreenInfo EXA driver record + * + * exaDriverInit sets up EXA given a driver record filled in by the driver. + * pScreenInfo should have been allocated by exaDriverAlloc(). See the + * comments in _ExaDriver for what must be filled in and what is optional. + * + * @return TRUE if EXA was successfully initialized. + */ +Bool +exaDriverInit (ScreenPtr pScreen, + ExaDriverPtr pScreenInfo) +{ + ExaScreenPrivPtr pExaScr; + PictureScreenPtr ps; + + if (!pScreenInfo) + return FALSE; + + if (pScreenInfo->exa_major != EXA_VERSION_MAJOR || + pScreenInfo->exa_minor > EXA_VERSION_MINOR) + { + LogMessage(X_ERROR, "EXA(%d): driver's EXA version requirements " + "(%d.%d) are incompatible with EXA version (%d.%d)\n", + pScreen->myNum, + pScreenInfo->exa_major, pScreenInfo->exa_minor, + EXA_VERSION_MAJOR, EXA_VERSION_MINOR); + return FALSE; + } + + if (!pScreenInfo->CreatePixmap && !pScreenInfo->CreatePixmap2) { + if (!pScreenInfo->memoryBase) { + LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::memoryBase " + "must be non-zero\n", pScreen->myNum); + return FALSE; + } + + if (!pScreenInfo->memorySize) { + LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::memorySize must be " + "non-zero\n", pScreen->myNum); + return FALSE; + } + + if (pScreenInfo->offScreenBase > pScreenInfo->memorySize) { + LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::offScreenBase must " + "be <= ExaDriverRec::memorySize\n", pScreen->myNum); + return FALSE; + } + } + + if (!pScreenInfo->PrepareSolid) { + LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::PrepareSolid must be " + "non-NULL\n", pScreen->myNum); + return FALSE; + } + + if (!pScreenInfo->PrepareCopy) { + LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::PrepareCopy must be " + "non-NULL\n", pScreen->myNum); + return FALSE; + } + + if (!pScreenInfo->WaitMarker) { + LogMessage(X_ERROR, "EXA(%d): ExaDriverRec::WaitMarker must be " + "non-NULL\n", pScreen->myNum); + return FALSE; + } + + /* If the driver doesn't set any max pitch values, we'll just assume + * that there's a limitation by pixels, and that it's the same as + * maxX. + * + * We want maxPitchPixels or maxPitchBytes to be set so we can check + * pixmaps against the max pitch in exaCreatePixmap() -- it matters + * whether a pixmap is rejected because of its pitch or + * because of its width. + */ + if (!pScreenInfo->maxPitchPixels && !pScreenInfo->maxPitchBytes) + { + pScreenInfo->maxPitchPixels = pScreenInfo->maxX; + } + + ps = GetPictureScreenIfSet(pScreen); + + if (!dixRegisterPrivateKey(&exaScreenPrivateKeyRec, PRIVATE_SCREEN, 0)) { + LogMessage(X_WARNING, "EXA(%d): Failed to register screen private\n", + pScreen->myNum); + return FALSE; + } + + pExaScr = calloc (sizeof (ExaScreenPrivRec), 1); + if (!pExaScr) { + LogMessage(X_WARNING, "EXA(%d): Failed to allocate screen private\n", + pScreen->myNum); + return FALSE; + } + + pExaScr->info = pScreenInfo; + + dixSetPrivate(&pScreen->devPrivates, exaScreenPrivateKey, pExaScr); + + pExaScr->migration = ExaMigrationAlways; + + exaDDXDriverInit(pScreen); + + if (!dixRegisterPrivateKey(&exaGCPrivateKeyRec, PRIVATE_GC, sizeof(ExaGCPrivRec))) { + LogMessage(X_WARNING, + "EXA(%d): Failed to allocate GC private\n", + pScreen->myNum); + return FALSE; + } + + /* + * Replace various fb screen functions + */ + if ((pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS) && + (!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS) || + (pExaScr->info->flags & EXA_MIXED_PIXMAPS))) + wrap(pExaScr, pScreen, BlockHandler, ExaBlockHandler); + if ((pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS) && + !(pExaScr->info->flags & EXA_HANDLES_PIXMAPS)) + wrap(pExaScr, pScreen, WakeupHandler, ExaWakeupHandler); + wrap(pExaScr, pScreen, CreateGC, exaCreateGC); + wrap(pExaScr, pScreen, CloseScreen, exaCloseScreen); + wrap(pExaScr, pScreen, GetImage, exaGetImage); + wrap(pExaScr, pScreen, GetSpans, ExaCheckGetSpans); + wrap(pExaScr, pScreen, CopyWindow, exaCopyWindow); + wrap(pExaScr, pScreen, ChangeWindowAttributes, exaChangeWindowAttributes); + wrap(pExaScr, pScreen, BitmapToRegion, exaBitmapToRegion); + wrap(pExaScr, pScreen, CreateScreenResources, exaCreateScreenResources); + + if (ps) { + wrap(pExaScr, ps, Composite, exaComposite); + if (pScreenInfo->PrepareComposite) { + wrap(pExaScr, ps, Glyphs, exaGlyphs); + } else { + wrap(pExaScr, ps, Glyphs, ExaCheckGlyphs); + } + wrap(pExaScr, ps, Trapezoids, exaTrapezoids); + wrap(pExaScr, ps, Triangles, exaTriangles); + wrap(pExaScr, ps, AddTraps, ExaCheckAddTraps); + } + +#ifdef MITSHM + /* + * Don't allow shared pixmaps. + */ + ShmRegisterFuncs(pScreen, &exaShmFuncs); +#endif + /* + * Hookup offscreen pixmaps + */ + if (pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS) + { + if (!dixRegisterPrivateKey(&exaPixmapPrivateKeyRec, PRIVATE_PIXMAP, sizeof(ExaPixmapPrivRec))) { + LogMessage(X_WARNING, + "EXA(%d): Failed to allocate pixmap private\n", + pScreen->myNum); + return FALSE; + } + if (pExaScr->info->flags & EXA_HANDLES_PIXMAPS) { + if (pExaScr->info->flags & EXA_MIXED_PIXMAPS) { + wrap(pExaScr, pScreen, CreatePixmap, exaCreatePixmap_mixed); + wrap(pExaScr, pScreen, DestroyPixmap, exaDestroyPixmap_mixed); + wrap(pExaScr, pScreen, ModifyPixmapHeader, exaModifyPixmapHeader_mixed); + pExaScr->do_migration = exaDoMigration_mixed; + pExaScr->pixmap_has_gpu_copy = exaPixmapHasGpuCopy_mixed; + pExaScr->do_move_in_pixmap = exaMoveInPixmap_mixed; + pExaScr->do_move_out_pixmap = NULL; + pExaScr->prepare_access_reg = exaPrepareAccessReg_mixed; + } else { + wrap(pExaScr, pScreen, CreatePixmap, exaCreatePixmap_driver); + wrap(pExaScr, pScreen, DestroyPixmap, exaDestroyPixmap_driver); + wrap(pExaScr, pScreen, ModifyPixmapHeader, exaModifyPixmapHeader_driver); + pExaScr->do_migration = NULL; + pExaScr->pixmap_has_gpu_copy = exaPixmapHasGpuCopy_driver; + pExaScr->do_move_in_pixmap = NULL; + pExaScr->do_move_out_pixmap = NULL; + pExaScr->prepare_access_reg = NULL; + } + } else { + wrap(pExaScr, pScreen, CreatePixmap, exaCreatePixmap_classic); + wrap(pExaScr, pScreen, DestroyPixmap, exaDestroyPixmap_classic); + wrap(pExaScr, pScreen, ModifyPixmapHeader, exaModifyPixmapHeader_classic); + pExaScr->do_migration = exaDoMigration_classic; + pExaScr->pixmap_has_gpu_copy = exaPixmapHasGpuCopy_classic; + pExaScr->do_move_in_pixmap = exaMoveInPixmap_classic; + pExaScr->do_move_out_pixmap = exaMoveOutPixmap_classic; + pExaScr->prepare_access_reg = exaPrepareAccessReg_classic; + } + if (!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS)) { + LogMessage(X_INFO, "EXA(%d): Offscreen pixmap area of %lu bytes\n", + pScreen->myNum, + pExaScr->info->memorySize - pExaScr->info->offScreenBase); + } else { + LogMessage(X_INFO, "EXA(%d): Driver allocated offscreen pixmaps\n", + pScreen->myNum); + + } + } + else + LogMessage(X_INFO, "EXA(%d): No offscreen pixmaps\n", pScreen->myNum); + + if (!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS)) { + DBG_PIXMAP(("============== %ld < %ld\n", pExaScr->info->offScreenBase, + pExaScr->info->memorySize)); + if (pExaScr->info->offScreenBase < pExaScr->info->memorySize) { + if (!exaOffscreenInit (pScreen)) { + LogMessage(X_WARNING, "EXA(%d): Offscreen pixmap setup failed\n", + pScreen->myNum); + return FALSE; + } + } + } + + if (ps->Glyphs == exaGlyphs) + exaGlyphsInit(pScreen); + + LogMessage(X_INFO, "EXA(%d): Driver registered support for the following" + " operations:\n", pScreen->myNum); + assert(pScreenInfo->PrepareSolid != NULL); + LogMessage(X_INFO, " Solid\n"); + assert(pScreenInfo->PrepareCopy != NULL); + LogMessage(X_INFO, " Copy\n"); + if (pScreenInfo->PrepareComposite != NULL) { + LogMessage(X_INFO, " Composite (RENDER acceleration)\n"); + } + if (pScreenInfo->UploadToScreen != NULL) { + LogMessage(X_INFO, " UploadToScreen\n"); + } + if (pScreenInfo->DownloadFromScreen != NULL) { + LogMessage(X_INFO, " DownloadFromScreen\n"); + } + + return TRUE; +} + +/** + * exaDriverFini tears down EXA on a given screen. + * + * @param pScreen screen being torn down. + */ +void +exaDriverFini (ScreenPtr pScreen) +{ + /*right now does nothing*/ +} + +/** + * exaMarkSync() should be called after any asynchronous drawing by the hardware. + * + * @param pScreen screen which drawing occurred on + * + * exaMarkSync() sets a flag to indicate that some asynchronous drawing has + * happened and a WaitSync() will be necessary before relying on the contents of + * offscreen memory from the CPU's perspective. It also calls an optional + * driver MarkSync() callback, the return value of which may be used to do partial + * synchronization with the hardware in the future. + */ +void exaMarkSync(ScreenPtr pScreen) +{ + ExaScreenPriv(pScreen); + + pExaScr->info->needsSync = TRUE; + if (pExaScr->info->MarkSync != NULL) { + pExaScr->info->lastMarker = (*pExaScr->info->MarkSync)(pScreen); + } +} + +/** + * exaWaitSync() ensures that all drawing has been completed. + * + * @param pScreen screen being synchronized. + * + * Calls down into the driver to ensure that all previous drawing has completed. + * It should always be called before relying on the framebuffer contents + * reflecting previous drawing, from a CPU perspective. + */ +void exaWaitSync(ScreenPtr pScreen) +{ + ExaScreenPriv(pScreen); + + if (pExaScr->info->needsSync && !pExaScr->swappedOut) { + (*pExaScr->info->WaitMarker)(pScreen, pExaScr->info->lastMarker); + pExaScr->info->needsSync = FALSE; + } +} + +/** + * Performs migration of the pixmaps according to the operation information + * provided in pixmaps and can_accel and the migration scheme chosen in the + * config file. + */ +void +exaDoMigration (ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel) +{ + ScreenPtr pScreen = pixmaps[0].pPix->drawable.pScreen; + ExaScreenPriv(pScreen); + + if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)) + return; + + if (pExaScr->do_migration) + (*pExaScr->do_migration)(pixmaps, npixmaps, can_accel); +} + +void +exaMoveInPixmap (PixmapPtr pPixmap) +{ + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPriv(pScreen); + + if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)) + return; + + if (pExaScr->do_move_in_pixmap) + (*pExaScr->do_move_in_pixmap)(pPixmap); +} + +void +exaMoveOutPixmap (PixmapPtr pPixmap) +{ + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPriv(pScreen); + + if (!(pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS)) + return; + + if (pExaScr->do_move_out_pixmap) + (*pExaScr->do_move_out_pixmap)(pPixmap); +} diff --git a/exa/exa.h b/exa/exa.h new file mode 100644 index 0000000..8c93d15 --- /dev/null +++ b/exa/exa.h @@ -0,0 +1,843 @@ +/* + * + * Copyright (C) 2000 Keith Packard + * 2004 Eric Anholt + * 2005 Zack Rusin + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of copyright holders not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Copyright holders make no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + */ + +/** @file + * This is the header containing the public API of EXA for exa drivers. + */ + +#ifndef EXA_H +#define EXA_H + +#include "scrnintstr.h" +#include "pixmapstr.h" +#include "windowstr.h" +#include "gcstruct.h" +#include "picturestr.h" +#include "fb.h" + +#define EXA_VERSION_MAJOR 2 +#define EXA_VERSION_MINOR 5 +#define EXA_VERSION_RELEASE 0 + +typedef struct _ExaOffscreenArea ExaOffscreenArea; + +typedef void (*ExaOffscreenSaveProc) (ScreenPtr pScreen, ExaOffscreenArea *area); + +typedef enum _ExaOffscreenState { + ExaOffscreenAvail, + ExaOffscreenRemovable, + ExaOffscreenLocked +} ExaOffscreenState; + +struct _ExaOffscreenArea { + int base_offset; /* allocation base */ + int offset; /* aligned offset */ + int size; /* total allocation size */ + unsigned last_use; + pointer privData; + + ExaOffscreenSaveProc save; + + ExaOffscreenState state; + + ExaOffscreenArea *next; + + unsigned eviction_cost; + + ExaOffscreenArea *prev; /* Double-linked list for defragmentation */ + int align; /* required alignment */ +}; + +/** + * The ExaDriver structure is allocated through exaDriverAlloc(), and then + * fllled in by drivers. + */ +typedef struct _ExaDriver { + /** + * exa_major and exa_minor should be set by the driver to the version of + * EXA which the driver was compiled for (or configures itself at runtime + * to support). This allows EXA to extend the structure for new features + * without breaking ABI for drivers compiled against older versions. + */ + int exa_major, exa_minor; + + /** + * memoryBase is the address of the beginning of framebuffer memory. + * The visible screen should be within memoryBase to memoryBase + + * memorySize. + */ + CARD8 *memoryBase; + + /** + * offScreenBase is the offset from memoryBase of the beginning of the area + * to be managed by EXA's linear offscreen memory manager. + * + * In XFree86 DDX drivers, this is probably: + * (pScrn->displayWidth * cpp * pScrn->virtualY) + */ + unsigned long offScreenBase; + + /** + * memorySize is the length (in bytes) of framebuffer memory beginning + * from memoryBase. + * + * The offscreen memory manager will manage the area beginning at + * (memoryBase + offScreenBase), with a length of (memorySize - + * offScreenBase) + * + * In XFree86 DDX drivers, this is probably (pScrn->videoRam * 1024) + */ + unsigned long memorySize; + + /** + * pixmapOffsetAlign is the byte alignment necessary for pixmap offsets + * within framebuffer. + * + * Hardware typically has a required alignment of offsets, which may or may + * not be a power of two. EXA will ensure that pixmaps managed by the + * offscreen memory manager meet this alignment requirement. + */ + int pixmapOffsetAlign; + + /** + * pixmapPitchAlign is the byte alignment necessary for pixmap pitches + * within the framebuffer. + * + * Hardware typically has a required alignment of pitches for acceleration. + * For 3D hardware, Composite acceleration often requires that source and + * mask pixmaps (textures) have a power-of-two pitch, which can be demanded + * using EXA_OFFSCREEN_ALIGN_POT. These pitch requirements only apply to + * pixmaps managed by the offscreen memory manager. Thus, it is up to the + * driver to ensure that the visible screen has an appropriate pitch for + * acceleration. + */ + int pixmapPitchAlign; + + /** + * The flags field is bitfield of boolean values controlling EXA's behavior. + * + * The flags in clude EXA_OFFSCREEN_PIXMAPS, EXA_OFFSCREEN_ALIGN_POT, and + * EXA_TWO_BITBLT_DIRECTIONS. + */ + int flags; + + /** @{ */ + /** + * maxX controls the X coordinate limitation for rendering from the card. + * The driver should never receive a request for rendering beyond maxX + * in the X direction from the origin of a pixmap. + */ + int maxX; + + /** + * maxY controls the Y coordinate limitation for rendering from the card. + * The driver should never receive a request for rendering beyond maxY + * in the Y direction from the origin of a pixmap. + */ + int maxY; + /** @} */ + + /* private */ + ExaOffscreenArea *offScreenAreas; + Bool needsSync; + int lastMarker; + + /** @name Solid + * @{ + */ + /** + * PrepareSolid() sets up the driver for doing a solid fill. + * @param pPixmap Destination pixmap + * @param alu raster operation + * @param planemask write mask for the fill + * @param fg "foreground" color for the fill + * + * This call should set up the driver for doing a series of solid fills + * through the Solid() call. The alu raster op is one of the GX* + * graphics functions listed in X.h, and typically maps to a similar + * single-byte "ROP" setting in all hardware. The planemask controls + * which bits of the destination should be affected, and will only represent + * the bits up to the depth of pPixmap. The fg is the pixel value of the + * foreground color referred to in ROP descriptions. + * + * Note that many drivers will need to store some of the data in the driver + * private record, for sending to the hardware with each drawing command. + * + * The PrepareSolid() call is required of all drivers, but it may fail for any + * reason. Failure results in a fallback to software rendering. + */ + Bool (*PrepareSolid) (PixmapPtr pPixmap, + int alu, + Pixel planemask, + Pixel fg); + + /** + * Solid() performs a solid fill set up in the last PrepareSolid() call. + * + * @param pPixmap destination pixmap + * @param x1 left coordinate + * @param y1 top coordinate + * @param x2 right coordinate + * @param y2 bottom coordinate + * + * Performs the fill set up by the last PrepareSolid() call, covering the + * area from (x1,y1) to (x2,y2) in pPixmap. Note that the coordinates are + * in the coordinate space of the destination pixmap, so the driver will + * need to set up the hardware's offset and pitch for the destination + * coordinates according to the pixmap's offset and pitch within + * framebuffer. This likely means using exaGetPixmapOffset() and + * exaGetPixmapPitch(). + * + * This call is required if PrepareSolid() ever succeeds. + */ + void (*Solid) (PixmapPtr pPixmap, int x1, int y1, int x2, int y2); + + /** + * DoneSolid() finishes a set of solid fills. + * + * @param pPixmap destination pixmap. + * + * The DoneSolid() call is called at the end of a series of consecutive + * Solid() calls following a successful PrepareSolid(). This allows drivers + * to finish up emitting drawing commands that were buffered, or clean up + * state from PrepareSolid(). + * + * This call is required if PrepareSolid() ever succeeds. + */ + void (*DoneSolid) (PixmapPtr pPixmap); + /** @} */ + + /** @name Copy + * @{ + */ + /** + * PrepareCopy() sets up the driver for doing a copy within video + * memory. + * + * @param pSrcPixmap source pixmap + * @param pDstPixmap destination pixmap + * @param dx X copy direction + * @param dy Y copy direction + * @param alu raster operation + * @param planemask write mask for the fill + * + * This call should set up the driver for doing a series of copies from the + * the pSrcPixmap to the pDstPixmap. The dx flag will be positive if the + * hardware should do the copy from the left to the right, and dy will be + * positive if the copy should be done from the top to the bottom. This + * is to deal with self-overlapping copies when pSrcPixmap == pDstPixmap. + * If your hardware can only support blits that are (left to right, top to + * bottom) or (right to left, bottom to top), then you should set + * #EXA_TWO_BITBLT_DIRECTIONS, and EXA will break down Copy operations to + * ones that meet those requirements. The alu raster op is one of the GX* + * graphics functions listed in X.h, and typically maps to a similar + * single-byte "ROP" setting in all hardware. The planemask controls which + * bits of the destination should be affected, and will only represent the + * bits up to the depth of pPixmap. + * + * Note that many drivers will need to store some of the data in the driver + * private record, for sending to the hardware with each drawing command. + * + * The PrepareCopy() call is required of all drivers, but it may fail for any + * reason. Failure results in a fallback to software rendering. + */ + Bool (*PrepareCopy) (PixmapPtr pSrcPixmap, + PixmapPtr pDstPixmap, + int dx, + int dy, + int alu, + Pixel planemask); + + /** + * Copy() performs a copy set up in the last PrepareCopy call. + * + * @param pDstPixmap destination pixmap + * @param srcX source X coordinate + * @param srcY source Y coordinate + * @param dstX destination X coordinate + * @param dstY destination Y coordinate + * @param width width of the rectangle to be copied + * @param height height of the rectangle to be copied. + * + * Performs the copy set up by the last PrepareCopy() call, copying the + * rectangle from (srcX, srcY) to (srcX + width, srcY + width) in the source + * pixmap to the same-sized rectangle at (dstX, dstY) in the destination + * pixmap. Those rectangles may overlap in memory, if + * pSrcPixmap == pDstPixmap. Note that this call does not receive the + * pSrcPixmap as an argument -- if it's needed in this function, it should + * be stored in the driver private during PrepareCopy(). As with Solid(), + * the coordinates are in the coordinate space of each pixmap, so the driver + * will need to set up source and destination pitches and offsets from those + * pixmaps, probably using exaGetPixmapOffset() and exaGetPixmapPitch(). + * + * This call is required if PrepareCopy ever succeeds. + */ + void (*Copy) (PixmapPtr pDstPixmap, + int srcX, + int srcY, + int dstX, + int dstY, + int width, + int height); + + /** + * DoneCopy() finishes a set of copies. + * + * @param pPixmap destination pixmap. + * + * The DoneCopy() call is called at the end of a series of consecutive + * Copy() calls following a successful PrepareCopy(). This allows drivers + * to finish up emitting drawing commands that were buffered, or clean up + * state from PrepareCopy(). + * + * This call is required if PrepareCopy() ever succeeds. + */ + void (*DoneCopy) (PixmapPtr pDstPixmap); + /** @} */ + + /** @name Composite + * @{ + */ + /** + * CheckComposite() checks to see if a composite operation could be + * accelerated. + * + * @param op Render operation + * @param pSrcPicture source Picture + * @param pMaskPicture mask picture + * @param pDstPicture destination Picture + * + * The CheckComposite() call checks if the driver could handle acceleration + * of op with the given source, mask, and destination pictures. This allows + * drivers to check source and destination formats, supported operations, + * transformations, and component alpha state, and send operations it can't + * support to software rendering early on. This avoids costly pixmap + * migration to the wrong places when the driver can't accelerate + * operations. Note that because migration hasn't happened, the driver + * can't know during CheckComposite() what the offsets and pitches of the + * pixmaps are going to be. + * + * See PrepareComposite() for more details on likely issues that drivers + * will have in accelerating Composite operations. + * + * The CheckComposite() call is recommended if PrepareComposite() is + * implemented, but is not required. + */ + Bool (*CheckComposite) (int op, + PicturePtr pSrcPicture, + PicturePtr pMaskPicture, + PicturePtr pDstPicture); + + /** + * PrepareComposite() sets up the driver for doing a Composite operation + * described in the Render extension protocol spec. + * + * @param op Render operation + * @param pSrcPicture source Picture + * @param pMaskPicture mask picture + * @param pDstPicture destination Picture + * @param pSrc source pixmap + * @param pMask mask pixmap + * @param pDst destination pixmap + * + * This call should set up the driver for doing a series of Composite + * operations, as described in the Render protocol spec, with the given + * pSrcPicture, pMaskPicture, and pDstPicture. The pSrc, pMask, and + * pDst are the pixmaps containing the pixel data, and should be used for + * setting the offset and pitch used for the coordinate spaces for each of + * the Pictures. + * + * Notes on interpreting Picture structures: + * - The Picture structures will always have a valid pDrawable. + * - The Picture structures will never have alphaMap set. + * - The mask Picture (and therefore pMask) may be NULL, in which case the + * operation is simply src OP dst instead of src IN mask OP dst, and + * mask coordinates should be ignored. + * - pMarkPicture may have componentAlpha set, which greatly changes + * the behavior of the Composite operation. componentAlpha has no effect + * when set on pSrcPicture or pDstPicture. + * - The source and mask Pictures may have a transformation set + * (Picture->transform != NULL), which means that the source coordinates + * should be transformed by that transformation, resulting in scaling, + * rotation, etc. The PictureTransformPoint() call can transform + * coordinates for you. Transforms have no effect on Pictures when used + * as a destination. + * - The source and mask pictures may have a filter set. PictFilterNearest + * and PictFilterBilinear are defined in the Render protocol, but others + * may be encountered, and must be handled correctly (usually by + * PrepareComposite failing, and falling back to software). Filters have + * no effect on Pictures when used as a destination. + * - The source and mask Pictures may have repeating set, which must be + * respected. Many chipsets will be unable to support repeating on + * pixmaps that have a width or height that is not a power of two. + * + * If your hardware can't support source pictures (textures) with + * non-power-of-two pitches, you should set #EXA_OFFSCREEN_ALIGN_POT. + * + * Note that many drivers will need to store some of the data in the driver + * private record, for sending to the hardware with each drawing command. + * + * The PrepareComposite() call is not required. However, it is highly + * recommended for performance of antialiased font rendering and performance + * of cairo applications. Failure results in a fallback to software + * rendering. + */ + Bool (*PrepareComposite) (int op, + PicturePtr pSrcPicture, + PicturePtr pMaskPicture, + PicturePtr pDstPicture, + PixmapPtr pSrc, + PixmapPtr pMask, + PixmapPtr pDst); + + /** + * Composite() performs a Composite operation set up in the last + * PrepareComposite() call. + * + * @param pDstPixmap destination pixmap + * @param srcX source X coordinate + * @param srcY source Y coordinate + * @param maskX source X coordinate + * @param maskY source Y coordinate + * @param dstX destination X coordinate + * @param dstY destination Y coordinate + * @param width destination rectangle width + * @param height destination rectangle height + * + * Performs the Composite operation set up by the last PrepareComposite() + * call, to the rectangle from (dstX, dstY) to (dstX + width, dstY + height) + * in the destination Pixmap. Note that if a transformation was set on + * the source or mask Pictures, the source rectangles may not be the same + * size as the destination rectangles and filtering. Getting the coordinate + * transformation right at the subpixel level can be tricky, and rendercheck + * can test this for you. + * + * This call is required if PrepareComposite() ever succeeds. + */ + void (*Composite) (PixmapPtr pDst, + int srcX, + int srcY, + int maskX, + int maskY, + int dstX, + int dstY, + int width, + int height); + + /** + * DoneComposite() finishes a set of Composite operations. + * + * @param pPixmap destination pixmap. + * + * The DoneComposite() call is called at the end of a series of consecutive + * Composite() calls following a successful PrepareComposite(). This allows + * drivers to finish up emitting drawing commands that were buffered, or + * clean up state from PrepareComposite(). + * + * This call is required if PrepareComposite() ever succeeds. + */ + void (*DoneComposite) (PixmapPtr pDst); + /** @} */ + + /** + * UploadToScreen() loads a rectangle of data from src into pDst. + * + * @param pDst destination pixmap + * @param x destination X coordinate. + * @param y destination Y coordinate + * @param width width of the rectangle to be copied + * @param height height of the rectangle to be copied + * @param src pointer to the beginning of the source data + * @param src_pitch pitch (in bytes) of the lines of source data. + * + * UploadToScreen() copies data in system memory beginning at src (with + * pitch src_pitch) into the destination pixmap from (x, y) to + * (x + width, y + height). This is typically done with hostdata uploads, + * where the CPU sets up a blit command on the hardware with instructions + * that the blit data will be fed through some sort of aperture on the card. + * + * If UploadToScreen() is performed asynchronously, it is up to the driver + * to call exaMarkSync(). This is in contrast to most other acceleration + * calls in EXA. + * + * UploadToScreen() can aid in pixmap migration, but is most important for + * the performance of exaGlyphs() (antialiased font drawing) by allowing + * pipelining of data uploads, avoiding a sync of the card after each glyph. + * + * @return TRUE if the driver successfully uploaded the data. FALSE + * indicates that EXA should fall back to doing the upload in software. + * + * UploadToScreen() is not required, but is recommended if Composite + * acceleration is supported. + */ + Bool (*UploadToScreen) (PixmapPtr pDst, + int x, + int y, + int w, + int h, + char *src, + int src_pitch); + + /** + * UploadToScratch() is no longer used and will be removed next time the EXA + * major version needs to be bumped. + */ + Bool (*UploadToScratch) (PixmapPtr pSrc, + PixmapPtr pDst); + + /** + * DownloadFromScreen() loads a rectangle of data from pSrc into dst + * + * @param pSrc source pixmap + * @param x source X coordinate. + * @param y source Y coordinate + * @param width width of the rectangle to be copied + * @param height height of the rectangle to be copied + * @param dst pointer to the beginning of the destination data + * @param dst_pitch pitch (in bytes) of the lines of destination data. + * + * DownloadFromScreen() copies data from offscreen memory in pSrc from + * (x, y) to (x + width, y + height), to system memory starting at + * dst (with pitch dst_pitch). This would usually be done + * using scatter-gather DMA, supported by a DRM call, or by blitting to AGP + * and then synchronously reading from AGP. Because the implementation + * might be synchronous, EXA leaves it up to the driver to call + * exaMarkSync() if DownloadFromScreen() was asynchronous. This is in + * contrast to most other acceleration calls in EXA. + * + * DownloadFromScreen() can aid in the largest bottleneck in pixmap + * migration, which is the read from framebuffer when evicting pixmaps from + * framebuffer memory. Thus, it is highly recommended, even though + * implementations are typically complicated. + * + * @return TRUE if the driver successfully downloaded the data. FALSE + * indicates that EXA should fall back to doing the download in software. + * + * DownloadFromScreen() is not required, but is highly recommended. + */ + Bool (*DownloadFromScreen)(PixmapPtr pSrc, + int x, int y, + int w, int h, + char *dst, int dst_pitch); + + /** + * MarkSync() requests that the driver mark a synchronization point, + * returning an driver-defined integer marker which could be requested for + * synchronization to later in WaitMarker(). This might be used in the + * future to avoid waiting for full hardware stalls before accessing pixmap + * data with the CPU, but is not important in the current incarnation of + * EXA. + * + * Note that drivers should call exaMarkSync() when they have done some + * acceleration, rather than their own MarkSync() handler, as otherwise EXA + * will be unaware of the driver's acceleration and not sync to it during + * fallbacks. + * + * MarkSync() is optional. + */ + int (*MarkSync) (ScreenPtr pScreen); + + /** + * WaitMarker() waits for all rendering before the given marker to have + * completed. If the driver does not implement MarkSync(), marker is + * meaningless, and all rendering by the hardware should be completed before + * WaitMarker() returns. + * + * Note that drivers should call exaWaitSync() to wait for all acceleration + * to finish, as otherwise EXA will be unaware of the driver having + * synchronized, resulting in excessive WaitMarker() calls. + * + * WaitMarker() is required of all drivers. + */ + void (*WaitMarker) (ScreenPtr pScreen, int marker); + + /** @{ */ + /** + * PrepareAccess() is called before CPU access to an offscreen pixmap. + * + * @param pPix the pixmap being accessed + * @param index the index of the pixmap being accessed. + * + * PrepareAccess() will be called before CPU access to an offscreen pixmap. + * This can be used to set up hardware surfaces for byteswapping or + * untiling, or to adjust the pixmap's devPrivate.ptr for the purpose of + * making CPU access use a different aperture. + * + * The index is one of #EXA_PREPARE_DEST, #EXA_PREPARE_SRC, + * #EXA_PREPARE_MASK, #EXA_PREPARE_AUX_DEST, #EXA_PREPARE_AUX_SRC, or + * #EXA_PREPARE_AUX_MASK. Since only up to #EXA_NUM_PREPARE_INDICES pixmaps + * will have PrepareAccess() called on them per operation, drivers can have + * a small, statically-allocated space to maintain state for PrepareAccess() + * and FinishAccess() in. Note that PrepareAccess() is only called once per + * pixmap and operation, regardless of whether the pixmap is used as a + * destination and/or source, and the index may not reflect the usage. + * + * PrepareAccess() may fail. An example might be the case of hardware that + * can set up 1 or 2 surfaces for CPU access, but not 3. If PrepareAccess() + * fails, EXA will migrate the pixmap to system memory. + * DownloadFromScreen() must be implemented and must not fail if a driver + * wishes to fail in PrepareAccess(). PrepareAccess() must not fail when + * pPix is the visible screen, because the visible screen can not be + * migrated. + * + * @return TRUE if PrepareAccess() successfully prepared the pixmap for CPU + * drawing. + * @return FALSE if PrepareAccess() is unsuccessful and EXA should use + * DownloadFromScreen() to migate the pixmap out. + */ + Bool (*PrepareAccess)(PixmapPtr pPix, int index); + + /** + * FinishAccess() is called after CPU access to an offscreen pixmap. + * + * @param pPix the pixmap being accessed + * @param index the index of the pixmap being accessed. + * + * FinishAccess() will be called after finishing CPU access of an offscreen + * pixmap set up by PrepareAccess(). Note that the FinishAccess() will not be + * called if PrepareAccess() failed and the pixmap was migrated out. + */ + void (*FinishAccess)(PixmapPtr pPix, int index); + + /** + * PixmapIsOffscreen() is an optional driver replacement to + * exaPixmapHasGpuCopy(). Set to NULL if you want the standard behaviour + * of exaPixmapHasGpuCopy(). + * + * @param pPix the pixmap + * @return TRUE if the given drawable is in framebuffer memory. + * + * exaPixmapHasGpuCopy() is used to determine if a pixmap is in offscreen + * memory, meaning that acceleration could probably be done to it, and that it + * will need to be wrapped by PrepareAccess()/FinishAccess() when accessing it + * with the CPU. + * + * + */ + Bool (*PixmapIsOffscreen)(PixmapPtr pPix); + + /** @name PrepareAccess() and FinishAccess() indices + * @{ + */ + /** + * EXA_PREPARE_DEST is the index for a pixmap that may be drawn to or + * read from. + */ + #define EXA_PREPARE_DEST 0 + /** + * EXA_PREPARE_SRC is the index for a pixmap that may be read from + */ + #define EXA_PREPARE_SRC 1 + /** + * EXA_PREPARE_SRC is the index for a second pixmap that may be read + * from. + */ + #define EXA_PREPARE_MASK 2 + /** + * EXA_PREPARE_AUX* are additional indices for other purposes, e.g. + * separate alpha maps with Composite operations. + */ + #define EXA_PREPARE_AUX_DEST 3 + #define EXA_PREPARE_AUX_SRC 4 + #define EXA_PREPARE_AUX_MASK 5 + #define EXA_NUM_PREPARE_INDICES 6 + /** @} */ + + /** + * maxPitchPixels controls the pitch limitation for rendering from + * the card. + * The driver should never receive a request for rendering a pixmap + * that has a pitch (in pixels) beyond maxPitchPixels. + * + * Setting this field is optional -- if your hardware doesn't have + * a pitch limitation in pixels, don't set this. If neither this value + * nor maxPitchBytes is set, then maxPitchPixels is set to maxX. + * If set, it must not be smaller than maxX. + * + * @sa maxPitchBytes + */ + int maxPitchPixels; + + /** + * maxPitchBytes controls the pitch limitation for rendering from + * the card. + * The driver should never receive a request for rendering a pixmap + * that has a pitch (in bytes) beyond maxPitchBytes. + * + * Setting this field is optional -- if your hardware doesn't have + * a pitch limitation in bytes, don't set this. + * If set, it must not be smaller than maxX * 4. + * There's no default value for maxPitchBytes. + * + * @sa maxPitchPixels + */ + int maxPitchBytes; + + /* Hooks to allow driver to its own pixmap memory management */ + void *(*CreatePixmap)(ScreenPtr pScreen, int size, int align); + void (*DestroyPixmap)(ScreenPtr pScreen, void *driverPriv); + /** + * Returning a pixmap with non-NULL devPrivate.ptr implies a pixmap which is + * not offscreen, which will never be accelerated and Prepare/FinishAccess won't + * be called. + */ + Bool (*ModifyPixmapHeader)(PixmapPtr pPixmap, int width, int height, + int depth, int bitsPerPixel, int devKind, + pointer pPixData); + + /* hooks for drivers with tiling support: + * driver MUST fill out new_fb_pitch with valid pitch of pixmap + */ + void *(*CreatePixmap2)(ScreenPtr pScreen, int width, int height, + int depth, int usage_hint, int bitsPerPixel, + int *new_fb_pitch); + /** @} */ +} ExaDriverRec, *ExaDriverPtr; + +/** @name EXA driver flags + * @{ + */ +/** + * EXA_OFFSCREEN_PIXMAPS indicates to EXA that the driver can support + * offscreen pixmaps. + */ +#define EXA_OFFSCREEN_PIXMAPS (1 << 0) + +/** + * EXA_OFFSCREEN_ALIGN_POT indicates to EXA that the driver needs pixmaps + * to have a power-of-two pitch. + */ +#define EXA_OFFSCREEN_ALIGN_POT (1 << 1) + +/** + * EXA_TWO_BITBLT_DIRECTIONS indicates to EXA that the driver can only + * support copies that are (left-to-right, top-to-bottom) or + * (right-to-left, bottom-to-top). + */ +#define EXA_TWO_BITBLT_DIRECTIONS (1 << 2) + +/** + * EXA_HANDLES_PIXMAPS indicates to EXA that the driver can handle + * all pixmap addressing and migration. + */ +#define EXA_HANDLES_PIXMAPS (1 << 3) + +/** + * EXA_SUPPORTS_PREPARE_AUX indicates to EXA that the driver can handle the + * EXA_PREPARE_AUX* indices in the Prepare/FinishAccess hooks. If there are no + * such hooks, this flag has no effect. + */ +#define EXA_SUPPORTS_PREPARE_AUX (1 << 4) + +/** + * EXA_SUPPORTS_OFFSCREEN_OVERLAPS indicates to EXA that the driver Copy hooks + * can handle the source and destination occupying overlapping offscreen memory + * areas. This allows the offscreen memory defragmentation code to defragment + * areas where the defragmented position overlaps the fragmented position. + * + * Typically this is supported by traditional 2D engines but not by 3D engines. + */ +#define EXA_SUPPORTS_OFFSCREEN_OVERLAPS (1 << 5) + +/** + * EXA_MIXED_PIXMAPS will hide unacceleratable pixmaps from drivers and manage the + * problem known software fallbacks like trapezoids. This only migrates pixmaps one way + * into a driver pixmap and then pins it. + */ +#define EXA_MIXED_PIXMAPS (1 << 6) + +/** @} */ + +/* in exa.c */ +extern _X_EXPORT ExaDriverPtr +exaDriverAlloc(void); + +extern _X_EXPORT Bool +exaDriverInit(ScreenPtr pScreen, + ExaDriverPtr pScreenInfo); + +extern _X_EXPORT void +exaDriverFini(ScreenPtr pScreen); + +extern _X_EXPORT void +exaMarkSync(ScreenPtr pScreen); +extern _X_EXPORT void +exaWaitSync(ScreenPtr pScreen); + +extern _X_EXPORT unsigned long +exaGetPixmapOffset(PixmapPtr pPix); + +extern _X_EXPORT unsigned long +exaGetPixmapPitch(PixmapPtr pPix); + +extern _X_EXPORT unsigned long +exaGetPixmapSize(PixmapPtr pPix); + +extern _X_EXPORT void * +exaGetPixmapDriverPrivate(PixmapPtr p); + + +/* in exa_offscreen.c */ +extern _X_EXPORT ExaOffscreenArea * +exaOffscreenAlloc(ScreenPtr pScreen, int size, int align, + Bool locked, + ExaOffscreenSaveProc save, + pointer privData); + +extern _X_EXPORT ExaOffscreenArea * +exaOffscreenFree(ScreenPtr pScreen, ExaOffscreenArea *area); + +extern _X_EXPORT void +ExaOffscreenMarkUsed (PixmapPtr pPixmap); + +extern _X_EXPORT void +exaEnableDisableFBAccess (int index, Bool enable); + +extern _X_EXPORT Bool +exaDrawableIsOffscreen (DrawablePtr pDrawable); + +/* in exa.c */ +extern _X_EXPORT void +exaMoveInPixmap (PixmapPtr pPixmap); + +extern _X_EXPORT void +exaMoveOutPixmap (PixmapPtr pPixmap); + + +/* in exa_unaccel.c */ +extern _X_EXPORT CARD32 +exaGetPixmapFirstPixel (PixmapPtr pPixmap); + + +/** + * Returns TRUE if the given planemask covers all the significant bits in the + * pixel values for pDrawable. + */ +#define EXA_PM_IS_SOLID(_pDrawable, _pm) \ + (((_pm) & FbFullMask((_pDrawable)->depth)) == \ + FbFullMask((_pDrawable)->depth)) + +#endif /* EXA_H */ diff --git a/exa/exa_accel.c b/exa/exa_accel.c new file mode 100644 index 0000000..b4c0f83 --- /dev/null +++ b/exa/exa_accel.c @@ -0,0 +1,1306 @@ +/* + * Copyright © 2001 Keith Packard + * + * Partly based on code that is Copyright © The XFree86 Project Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Keith Packard not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Keith Packard makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + * + * Authors: + * Eric Anholt <eric@anholt.net> + * Michel Dänzer <michel@tungstengraphics.com> + * + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif +#include "exa_priv.h" +#include <X11/fonts/fontstruct.h> +#include "dixfontstr.h" +#include "exa.h" + +static void +exaFillSpans(DrawablePtr pDrawable, GCPtr pGC, int n, + DDXPointPtr ppt, int *pwidth, int fSorted) +{ + ScreenPtr pScreen = pDrawable->pScreen; + ExaScreenPriv (pScreen); + RegionPtr pClip = fbGetCompositeClip(pGC); + PixmapPtr pPixmap = exaGetDrawablePixmap (pDrawable); + ExaPixmapPriv (pPixmap); + BoxPtr pextent, pbox; + int nbox; + int extentX1, extentX2, extentY1, extentY2; + int fullX1, fullX2, fullY1; + int partX1, partX2; + int off_x, off_y; + + if (pExaScr->fallback_counter || + pExaScr->swappedOut || + pGC->fillStyle != FillSolid || + pExaPixmap->accel_blocked) + { + ExaCheckFillSpans (pDrawable, pGC, n, ppt, pwidth, fSorted); + return; + } + + if (pExaScr->do_migration) { + ExaMigrationRec pixmaps[1]; + + pixmaps[0].as_dst = TRUE; + pixmaps[0].as_src = FALSE; + pixmaps[0].pPix = pPixmap; + pixmaps[0].pReg = NULL; + + exaDoMigration (pixmaps, 1, TRUE); + } + + if (!(pPixmap = exaGetOffscreenPixmap (pDrawable, &off_x, &off_y)) || + !(*pExaScr->info->PrepareSolid) (pPixmap, + pGC->alu, + pGC->planemask, + pGC->fgPixel)) + { + ExaCheckFillSpans (pDrawable, pGC, n, ppt, pwidth, fSorted); + return; + } + + pextent = RegionExtents(pClip); + extentX1 = pextent->x1; + extentY1 = pextent->y1; + extentX2 = pextent->x2; + extentY2 = pextent->y2; + while (n--) + { + fullX1 = ppt->x; + fullY1 = ppt->y; + fullX2 = fullX1 + (int) *pwidth; + ppt++; + pwidth++; + + if (fullY1 < extentY1 || extentY2 <= fullY1) + continue; + + if (fullX1 < extentX1) + fullX1 = extentX1; + + if (fullX2 > extentX2) + fullX2 = extentX2; + + if (fullX1 >= fullX2) + continue; + + nbox = RegionNumRects (pClip); + if (nbox == 1) + { + (*pExaScr->info->Solid) (pPixmap, + fullX1 + off_x, fullY1 + off_y, + fullX2 + off_x, fullY1 + 1 + off_y); + } + else + { + pbox = RegionRects(pClip); + while(nbox--) + { + if (pbox->y1 <= fullY1 && fullY1 < pbox->y2) + { + partX1 = pbox->x1; + if (partX1 < fullX1) + partX1 = fullX1; + partX2 = pbox->x2; + if (partX2 > fullX2) + partX2 = fullX2; + if (partX2 > partX1) { + (*pExaScr->info->Solid) (pPixmap, + partX1 + off_x, fullY1 + off_y, + partX2 + off_x, fullY1 + 1 + off_y); + } + } + pbox++; + } + } + } + (*pExaScr->info->DoneSolid) (pPixmap); + exaMarkSync(pScreen); +} + +static Bool +exaDoPutImage (DrawablePtr pDrawable, GCPtr pGC, int depth, int x, int y, + int w, int h, int format, char *bits, int src_stride) +{ + ExaScreenPriv (pDrawable->pScreen); + PixmapPtr pPix = exaGetDrawablePixmap (pDrawable); + ExaPixmapPriv(pPix); + RegionPtr pClip; + BoxPtr pbox; + int nbox; + int xoff, yoff; + int bpp = pDrawable->bitsPerPixel; + Bool ret = TRUE; + + if (pExaScr->fallback_counter || pExaPixmap->accel_blocked || !pExaScr->info->UploadToScreen) + return FALSE; + + /* If there's a system copy, we want to save the result there */ + if (pExaPixmap->pDamage) + return FALSE; + + /* Don't bother with under 8bpp, XYPixmaps. */ + if (format != ZPixmap || bpp < 8) + return FALSE; + + /* Only accelerate copies: no rop or planemask. */ + if (!EXA_PM_IS_SOLID(pDrawable, pGC->planemask) || pGC->alu != GXcopy) + return FALSE; + + if (pExaScr->swappedOut) + return FALSE; + + if (pExaScr->do_migration) { + ExaMigrationRec pixmaps[1]; + + pixmaps[0].as_dst = TRUE; + pixmaps[0].as_src = FALSE; + pixmaps[0].pPix = pPix; + pixmaps[0].pReg = DamagePendingRegion(pExaPixmap->pDamage); + + exaDoMigration (pixmaps, 1, TRUE); + } + + pPix = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff); + + if (!pPix) + return FALSE; + + x += pDrawable->x; + y += pDrawable->y; + + pClip = fbGetCompositeClip(pGC); + for (nbox = RegionNumRects(pClip), + pbox = RegionRects(pClip); + nbox--; + pbox++) + { + int x1 = x; + int y1 = y; + int x2 = x + w; + int y2 = y + h; + char *src; + Bool ok; + + if (x1 < pbox->x1) + x1 = pbox->x1; + if (y1 < pbox->y1) + y1 = pbox->y1; + if (x2 > pbox->x2) + x2 = pbox->x2; + if (y2 > pbox->y2) + y2 = pbox->y2; + if (x1 >= x2 || y1 >= y2) + continue; + + src = bits + (y1 - y) * src_stride + (x1 - x) * (bpp / 8); + ok = pExaScr->info->UploadToScreen(pPix, x1 + xoff, y1 + yoff, + x2 - x1, y2 - y1, src, src_stride); + /* We have to fall back completely, and ignore what has already been completed. + * Messing with the fb layer directly like we used to is completely unacceptable. + */ + if (!ok) { + ret = FALSE; + break; + } + } + + if (ret) + exaMarkSync(pDrawable->pScreen); + + return ret; +} + +static void +exaPutImage (DrawablePtr pDrawable, GCPtr pGC, int depth, int x, int y, + int w, int h, int leftPad, int format, char *bits) +{ + if (!exaDoPutImage(pDrawable, pGC, depth, x, y, w, h, format, bits, + PixmapBytePad(w, pDrawable->depth))) + ExaCheckPutImage(pDrawable, pGC, depth, x, y, w, h, leftPad, format, + bits); +} + +static Bool inline +exaCopyNtoNTwoDir (DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable, + GCPtr pGC, BoxPtr pbox, int nbox, int dx, int dy) +{ + ExaScreenPriv (pDstDrawable->pScreen); + PixmapPtr pSrcPixmap, pDstPixmap; + int src_off_x, src_off_y, dst_off_x, dst_off_y; + int dirsetup; + + /* Need to get both pixmaps to call the driver routines */ + pSrcPixmap = exaGetOffscreenPixmap (pSrcDrawable, &src_off_x, &src_off_y); + pDstPixmap = exaGetOffscreenPixmap (pDstDrawable, &dst_off_x, &dst_off_y); + if (!pSrcPixmap || !pDstPixmap) + return FALSE; + + /* + * Now the case of a chip that only supports xdir = ydir = 1 or + * xdir = ydir = -1, but we have xdir != ydir. + */ + dirsetup = 0; /* No direction set up yet. */ + for (; nbox; pbox++, nbox--) { + if (dx >= 0 && (src_off_y + pbox->y1 + dy) != pbox->y1) { + /* Do a xdir = ydir = -1 blit instead. */ + if (dirsetup != -1) { + if (dirsetup != 0) + pExaScr->info->DoneCopy(pDstPixmap); + dirsetup = -1; + if (!(*pExaScr->info->PrepareCopy)(pSrcPixmap, + pDstPixmap, + -1, -1, + pGC ? pGC->alu : GXcopy, + pGC ? pGC->planemask : + FB_ALLONES)) + return FALSE; + } + (*pExaScr->info->Copy)(pDstPixmap, + src_off_x + pbox->x1 + dx, + src_off_y + pbox->y1 + dy, + dst_off_x + pbox->x1, + dst_off_y + pbox->y1, + pbox->x2 - pbox->x1, + pbox->y2 - pbox->y1); + } else if (dx < 0 && (src_off_y + pbox->y1 + dy) != pbox->y1) { + /* Do a xdir = ydir = 1 blit instead. */ + if (dirsetup != 1) { + if (dirsetup != 0) + pExaScr->info->DoneCopy(pDstPixmap); + dirsetup = 1; + if (!(*pExaScr->info->PrepareCopy)(pSrcPixmap, + pDstPixmap, + 1, 1, + pGC ? pGC->alu : GXcopy, + pGC ? pGC->planemask : + FB_ALLONES)) + return FALSE; + } + (*pExaScr->info->Copy)(pDstPixmap, + src_off_x + pbox->x1 + dx, + src_off_y + pbox->y1 + dy, + dst_off_x + pbox->x1, + dst_off_y + pbox->y1, + pbox->x2 - pbox->x1, + pbox->y2 - pbox->y1); + } else if (dx >= 0) { + /* + * xdir = 1, ydir = -1. + * Perform line-by-line xdir = ydir = 1 blits, going up. + */ + int i; + if (dirsetup != 1) { + if (dirsetup != 0) + pExaScr->info->DoneCopy(pDstPixmap); + dirsetup = 1; + if (!(*pExaScr->info->PrepareCopy)(pSrcPixmap, + pDstPixmap, + 1, 1, + pGC ? pGC->alu : GXcopy, + pGC ? pGC->planemask : + FB_ALLONES)) + return FALSE; + } + for (i = pbox->y2 - pbox->y1 - 1; i >= 0; i--) + (*pExaScr->info->Copy)(pDstPixmap, + src_off_x + pbox->x1 + dx, + src_off_y + pbox->y1 + dy + i, + dst_off_x + pbox->x1, + dst_off_y + pbox->y1 + i, + pbox->x2 - pbox->x1, 1); + } else { + /* + * xdir = -1, ydir = 1. + * Perform line-by-line xdir = ydir = -1 blits, going down. + */ + int i; + if (dirsetup != -1) { + if (dirsetup != 0) + pExaScr->info->DoneCopy(pDstPixmap); + dirsetup = -1; + if (!(*pExaScr->info->PrepareCopy)(pSrcPixmap, + pDstPixmap, + -1, -1, + pGC ? pGC->alu : GXcopy, + pGC ? pGC->planemask : + FB_ALLONES)) + return FALSE; + } + for (i = 0; i < pbox->y2 - pbox->y1; i++) + (*pExaScr->info->Copy)(pDstPixmap, + src_off_x + pbox->x1 + dx, + src_off_y + pbox->y1 + dy + i, + dst_off_x + pbox->x1, + dst_off_y + pbox->y1 + i, + pbox->x2 - pbox->x1, 1); + } + } + if (dirsetup != 0) + pExaScr->info->DoneCopy(pDstPixmap); + exaMarkSync(pDstDrawable->pScreen); + return TRUE; +} + +Bool +exaHWCopyNtoN (DrawablePtr pSrcDrawable, + DrawablePtr pDstDrawable, + GCPtr pGC, + BoxPtr pbox, + int nbox, + int dx, + int dy, + Bool reverse, + Bool upsidedown) +{ + ExaScreenPriv (pDstDrawable->pScreen); + PixmapPtr pSrcPixmap, pDstPixmap; + ExaPixmapPrivPtr pSrcExaPixmap, pDstExaPixmap; + int src_off_x, src_off_y; + int dst_off_x, dst_off_y; + RegionPtr srcregion = NULL, dstregion = NULL; + xRectangle *rects; + Bool ret = TRUE; + + /* avoid doing copy operations if no boxes */ + if (nbox == 0) + return TRUE; + + pSrcPixmap = exaGetDrawablePixmap (pSrcDrawable); + pDstPixmap = exaGetDrawablePixmap (pDstDrawable); + + exaGetDrawableDeltas (pSrcDrawable, pSrcPixmap, &src_off_x, &src_off_y); + exaGetDrawableDeltas (pDstDrawable, pDstPixmap, &dst_off_x, &dst_off_y); + + rects = malloc(nbox * sizeof(xRectangle)); + + if (rects) { + int i; + int ordering; + + for (i = 0; i < nbox; i++) { + rects[i].x = pbox[i].x1 + dx + src_off_x; + rects[i].y = pbox[i].y1 + dy + src_off_y; + rects[i].width = pbox[i].x2 - pbox[i].x1; + rects[i].height = pbox[i].y2 - pbox[i].y1; + } + + /* This must match the RegionCopy() logic for reversing rect order */ + if (nbox == 1 || (dx > 0 && dy > 0) || + (pDstDrawable != pSrcDrawable && + (pDstDrawable->type != DRAWABLE_WINDOW || + pSrcDrawable->type != DRAWABLE_WINDOW))) + ordering = CT_YXBANDED; + else + ordering = CT_UNSORTED; + + srcregion = RegionFromRects(nbox, rects, ordering); + free(rects); + + if (!pGC || !exaGCReadsDestination(pDstDrawable, pGC->planemask, + pGC->fillStyle, pGC->alu, + pGC->clientClipType)) { + dstregion = RegionCreate(NullBox, 0); + RegionCopy(dstregion, srcregion); + RegionTranslate(dstregion, dst_off_x - dx - src_off_x, + dst_off_y - dy - src_off_y); + } + } + + + pSrcExaPixmap = ExaGetPixmapPriv (pSrcPixmap); + pDstExaPixmap = ExaGetPixmapPriv (pDstPixmap); + + /* Check whether the accelerator can use this pixmap. + * If the pitch of the pixmaps is out of range, there's nothing + * we can do but fall back to software rendering. + */ + if (pSrcExaPixmap->accel_blocked & EXA_RANGE_PITCH || + pDstExaPixmap->accel_blocked & EXA_RANGE_PITCH) + goto fallback; + + /* If the width or the height of either of the pixmaps + * is out of range, check whether the boxes are actually out of the + * addressable range as well. If they aren't, we can still do + * the copying in hardware. + */ + if (pSrcExaPixmap->accel_blocked || pDstExaPixmap->accel_blocked) { + int i; + + for (i = 0; i < nbox; i++) { + /* src */ + if ((pbox[i].x2 + dx + src_off_x) >= pExaScr->info->maxX || + (pbox[i].y2 + dy + src_off_y) >= pExaScr->info->maxY) + goto fallback; + + /* dst */ + if ((pbox[i].x2 + dst_off_x) >= pExaScr->info->maxX || + (pbox[i].y2 + dst_off_y) >= pExaScr->info->maxY) + goto fallback; + } + } + + if (pExaScr->do_migration) { + ExaMigrationRec pixmaps[2]; + + pixmaps[0].as_dst = TRUE; + pixmaps[0].as_src = FALSE; + pixmaps[0].pPix = pDstPixmap; + pixmaps[0].pReg = dstregion; + pixmaps[1].as_dst = FALSE; + pixmaps[1].as_src = TRUE; + pixmaps[1].pPix = pSrcPixmap; + pixmaps[1].pReg = srcregion; + + exaDoMigration (pixmaps, 2, TRUE); + } + + /* Mixed directions must be handled specially if the card is lame */ + if ((pExaScr->info->flags & EXA_TWO_BITBLT_DIRECTIONS) && + reverse != upsidedown) { + if (exaCopyNtoNTwoDir(pSrcDrawable, pDstDrawable, pGC, pbox, nbox, + dx, dy)) + goto out; + goto fallback; + } + + if (exaPixmapHasGpuCopy(pDstPixmap)) { + /* Normal blitting. */ + if (exaPixmapHasGpuCopy(pSrcPixmap)) { + if (!(*pExaScr->info->PrepareCopy) (pSrcPixmap, pDstPixmap, reverse ? -1 : 1, + upsidedown ? -1 : 1, + pGC ? pGC->alu : GXcopy, + pGC ? pGC->planemask : FB_ALLONES)) { + goto fallback; + } + + while (nbox--) + { + (*pExaScr->info->Copy) (pDstPixmap, + pbox->x1 + dx + src_off_x, + pbox->y1 + dy + src_off_y, + pbox->x1 + dst_off_x, pbox->y1 + dst_off_y, + pbox->x2 - pbox->x1, pbox->y2 - pbox->y1); + pbox++; + } + + (*pExaScr->info->DoneCopy) (pDstPixmap); + exaMarkSync (pDstDrawable->pScreen); + /* UTS: mainly for SHM PutImage's secondary path. + * + * Only taking this path for directly accessible pixmaps. + */ + } else if (!pDstExaPixmap->pDamage && pSrcExaPixmap->sys_ptr) { + int bpp = pSrcDrawable->bitsPerPixel; + int src_stride = exaGetPixmapPitch(pSrcPixmap); + CARD8 *src = NULL; + + if (!pExaScr->info->UploadToScreen) + goto fallback; + + if (pSrcDrawable->bitsPerPixel != pDstDrawable->bitsPerPixel) + goto fallback; + + if (pSrcDrawable->bitsPerPixel < 8) + goto fallback; + + if (pGC && !(pGC->alu == GXcopy && EXA_PM_IS_SOLID(pSrcDrawable, pGC->planemask))) + goto fallback; + + while (nbox--) + { + src = pSrcExaPixmap->sys_ptr + (pbox->y1 + dy + src_off_y) * src_stride + (pbox->x1 + dx + src_off_x) * (bpp / 8); + if (!pExaScr->info->UploadToScreen(pDstPixmap, pbox->x1 + dst_off_x, + pbox->y1 + dst_off_y, pbox->x2 - pbox->x1, pbox->y2 - pbox->y1, + (char *) src, src_stride)) + goto fallback; + + pbox++; + } + } else + goto fallback; + } else + goto fallback; + + goto out; + +fallback: + ret = FALSE; + +out: + if (dstregion) { + RegionUninit(dstregion); + RegionDestroy(dstregion); + } + if (srcregion) { + RegionUninit(srcregion); + RegionDestroy(srcregion); + } + + return ret; +} + +void +exaCopyNtoN (DrawablePtr pSrcDrawable, + DrawablePtr pDstDrawable, + GCPtr pGC, + BoxPtr pbox, + int nbox, + int dx, + int dy, + Bool reverse, + Bool upsidedown, + Pixel bitplane, + void *closure) +{ + ExaScreenPriv(pDstDrawable->pScreen); + + if (pExaScr->fallback_counter || + (pExaScr->fallback_flags & EXA_FALLBACK_COPYWINDOW)) + return; + + if (exaHWCopyNtoN(pSrcDrawable, pDstDrawable, pGC, pbox, nbox, dx, dy, reverse, upsidedown)) + return; + + /* This is a CopyWindow, it's cleaner to fallback at the original call. */ + if (pExaScr->fallback_flags & EXA_ACCEL_COPYWINDOW) { + pExaScr->fallback_flags |= EXA_FALLBACK_COPYWINDOW; + return; + } + + /* fallback */ + ExaCheckCopyNtoN(pSrcDrawable, pDstDrawable, pGC, pbox, nbox, dx, dy, reverse, upsidedown, bitplane, closure); +} + +RegionPtr +exaCopyArea(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable, GCPtr pGC, + int srcx, int srcy, int width, int height, int dstx, int dsty) +{ + ExaScreenPriv (pDstDrawable->pScreen); + + if (pExaScr->fallback_counter || pExaScr->swappedOut) { + return ExaCheckCopyArea(pSrcDrawable, pDstDrawable, pGC, + srcx, srcy, width, height, dstx, dsty); + } + + return miDoCopy (pSrcDrawable, pDstDrawable, pGC, + srcx, srcy, width, height, + dstx, dsty, exaCopyNtoN, 0, NULL); +} + +static void +exaPolyPoint(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt, + DDXPointPtr ppt) +{ + ExaScreenPriv (pDrawable->pScreen); + int i; + xRectangle *prect; + + /* If we can't reuse the current GC as is, don't bother accelerating the + * points. + */ + if (pExaScr->fallback_counter || pGC->fillStyle != FillSolid) { + ExaCheckPolyPoint(pDrawable, pGC, mode, npt, ppt); + return; + } + + prect = malloc(sizeof(xRectangle) * npt); + for (i = 0; i < npt; i++) { + prect[i].x = ppt[i].x; + prect[i].y = ppt[i].y; + if (i > 0 && mode == CoordModePrevious) { + prect[i].x += prect[i - 1].x; + prect[i].y += prect[i - 1].y; + } + prect[i].width = 1; + prect[i].height = 1; + } + pGC->ops->PolyFillRect(pDrawable, pGC, npt, prect); + free(prect); +} + +/** + * exaPolylines() checks if it can accelerate the lines as a group of + * horizontal or vertical lines (rectangles), and uses existing rectangle fill + * acceleration if so. + */ +static void +exaPolylines(DrawablePtr pDrawable, GCPtr pGC, int mode, int npt, + DDXPointPtr ppt) +{ + ExaScreenPriv (pDrawable->pScreen); + xRectangle *prect; + int x1, x2, y1, y2; + int i; + + if (pExaScr->fallback_counter) { + ExaCheckPolylines(pDrawable, pGC, mode, npt, ppt); + return; + } + + /* Don't try to do wide lines or non-solid fill style. */ + if (pGC->lineWidth != 0 || pGC->lineStyle != LineSolid || + pGC->fillStyle != FillSolid) { + ExaCheckPolylines(pDrawable, pGC, mode, npt, ppt); + return; + } + + prect = malloc(sizeof(xRectangle) * (npt - 1)); + x1 = ppt[0].x; + y1 = ppt[0].y; + /* If we have any non-horizontal/vertical, fall back. */ + for (i = 0; i < npt - 1; i++) { + if (mode == CoordModePrevious) { + x2 = x1 + ppt[i + 1].x; + y2 = y1 + ppt[i + 1].y; + } else { + x2 = ppt[i + 1].x; + y2 = ppt[i + 1].y; + } + + if (x1 != x2 && y1 != y2) { + free(prect); + ExaCheckPolylines(pDrawable, pGC, mode, npt, ppt); + return; + } + + if (x1 < x2) { + prect[i].x = x1; + prect[i].width = x2 - x1 + 1; + } else { + prect[i].x = x2; + prect[i].width = x1 - x2 + 1; + } + if (y1 < y2) { + prect[i].y = y1; + prect[i].height = y2 - y1 + 1; + } else { + prect[i].y = y2; + prect[i].height = y1 - y2 + 1; + } + + x1 = x2; + y1 = y2; + } + pGC->ops->PolyFillRect(pDrawable, pGC, npt - 1, prect); + free(prect); +} + +/** + * exaPolySegment() checks if it can accelerate the lines as a group of + * horizontal or vertical lines (rectangles), and uses existing rectangle fill + * acceleration if so. + */ +static void +exaPolySegment (DrawablePtr pDrawable, GCPtr pGC, int nseg, + xSegment *pSeg) +{ + ExaScreenPriv (pDrawable->pScreen); + xRectangle *prect; + int i; + + /* Don't try to do wide lines or non-solid fill style. */ + if (pExaScr->fallback_counter || pGC->lineWidth != 0 || + pGC->lineStyle != LineSolid || pGC->fillStyle != FillSolid) + { + ExaCheckPolySegment(pDrawable, pGC, nseg, pSeg); + return; + } + + /* If we have any non-horizontal/vertical, fall back. */ + for (i = 0; i < nseg; i++) { + if (pSeg[i].x1 != pSeg[i].x2 && pSeg[i].y1 != pSeg[i].y2) { + ExaCheckPolySegment(pDrawable, pGC, nseg, pSeg); + return; + } + } + + prect = malloc(sizeof(xRectangle) * nseg); + for (i = 0; i < nseg; i++) { + if (pSeg[i].x1 < pSeg[i].x2) { + prect[i].x = pSeg[i].x1; + prect[i].width = pSeg[i].x2 - pSeg[i].x1 + 1; + } else { + prect[i].x = pSeg[i].x2; + prect[i].width = pSeg[i].x1 - pSeg[i].x2 + 1; + } + if (pSeg[i].y1 < pSeg[i].y2) { + prect[i].y = pSeg[i].y1; + prect[i].height = pSeg[i].y2 - pSeg[i].y1 + 1; + } else { + prect[i].y = pSeg[i].y2; + prect[i].height = pSeg[i].y1 - pSeg[i].y2 + 1; + } + + /* don't paint last pixel */ + if (pGC->capStyle == CapNotLast) { + if (prect[i].width == 1) + prect[i].height--; + else + prect[i].width--; + } + } + pGC->ops->PolyFillRect(pDrawable, pGC, nseg, prect); + free(prect); +} + +static Bool exaFillRegionSolid (DrawablePtr pDrawable, RegionPtr pRegion, + Pixel pixel, CARD32 planemask, CARD32 alu, + unsigned int clientClipType); + +static void +exaPolyFillRect(DrawablePtr pDrawable, + GCPtr pGC, + int nrect, + xRectangle *prect) +{ + ExaScreenPriv (pDrawable->pScreen); + RegionPtr pClip = fbGetCompositeClip(pGC); + PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable); + ExaPixmapPriv (pPixmap); + register BoxPtr pbox; + BoxPtr pextent; + int extentX1, extentX2, extentY1, extentY2; + int fullX1, fullX2, fullY1, fullY2; + int partX1, partX2, partY1, partY2; + int xoff, yoff; + int xorg, yorg; + int n; + RegionPtr pReg = RegionFromRects(nrect, prect, CT_UNSORTED); + + /* Compute intersection of rects and clip region */ + RegionTranslate(pReg, pDrawable->x, pDrawable->y); + RegionIntersect(pReg, pClip, pReg); + + if (!RegionNumRects(pReg)) { + goto out; + } + + exaGetDrawableDeltas(pDrawable, pPixmap, &xoff, &yoff); + + if (pExaScr->fallback_counter || pExaScr->swappedOut || + pExaPixmap->accel_blocked) + { + goto fallback; + } + + /* For ROPs where overlaps don't matter, convert rectangles to region and + * call exaFillRegion{Solid,Tiled}. + */ + if ((pGC->fillStyle == FillSolid || pGC->fillStyle == FillTiled) && + (nrect == 1 || pGC->alu == GXcopy || pGC->alu == GXclear || + pGC->alu == GXnoop || pGC->alu == GXcopyInverted || + pGC->alu == GXset)) { + if (((pGC->fillStyle == FillSolid || pGC->tileIsPixel) && + exaFillRegionSolid(pDrawable, pReg, pGC->fillStyle == FillSolid ? + pGC->fgPixel : pGC->tile.pixel, pGC->planemask, + pGC->alu, pGC->clientClipType)) || + (pGC->fillStyle == FillTiled && !pGC->tileIsPixel && + exaFillRegionTiled(pDrawable, pReg, pGC->tile.pixmap, &pGC->patOrg, + pGC->planemask, pGC->alu, + pGC->clientClipType))) { + goto out; + } + } + + if (pGC->fillStyle != FillSolid && + !(pGC->tileIsPixel && pGC->fillStyle == FillTiled)) + { + goto fallback; + } + + if (pExaScr->do_migration) { + ExaMigrationRec pixmaps[1]; + + pixmaps[0].as_dst = TRUE; + pixmaps[0].as_src = FALSE; + pixmaps[0].pPix = pPixmap; + pixmaps[0].pReg = NULL; + + exaDoMigration (pixmaps, 1, TRUE); + } + + if (!exaPixmapHasGpuCopy (pPixmap) || + !(*pExaScr->info->PrepareSolid) (pPixmap, + pGC->alu, + pGC->planemask, + pGC->fgPixel)) + { +fallback: + ExaCheckPolyFillRect (pDrawable, pGC, nrect, prect); + goto out; + } + + xorg = pDrawable->x; + yorg = pDrawable->y; + + pextent = RegionExtents(pClip); + extentX1 = pextent->x1; + extentY1 = pextent->y1; + extentX2 = pextent->x2; + extentY2 = pextent->y2; + while (nrect--) + { + fullX1 = prect->x + xorg; + fullY1 = prect->y + yorg; + fullX2 = fullX1 + (int) prect->width; + fullY2 = fullY1 + (int) prect->height; + prect++; + + if (fullX1 < extentX1) + fullX1 = extentX1; + + if (fullY1 < extentY1) + fullY1 = extentY1; + + if (fullX2 > extentX2) + fullX2 = extentX2; + + if (fullY2 > extentY2) + fullY2 = extentY2; + + if ((fullX1 >= fullX2) || (fullY1 >= fullY2)) + continue; + n = RegionNumRects (pClip); + if (n == 1) + { + (*pExaScr->info->Solid) (pPixmap, + fullX1 + xoff, fullY1 + yoff, + fullX2 + xoff, fullY2 + yoff); + } + else + { + pbox = RegionRects(pClip); + /* + * clip the rectangle to each box in the clip region + * this is logically equivalent to calling Intersect(), + * but rectangles may overlap each other here. + */ + while(n--) + { + partX1 = pbox->x1; + if (partX1 < fullX1) + partX1 = fullX1; + partY1 = pbox->y1; + if (partY1 < fullY1) + partY1 = fullY1; + partX2 = pbox->x2; + if (partX2 > fullX2) + partX2 = fullX2; + partY2 = pbox->y2; + if (partY2 > fullY2) + partY2 = fullY2; + + pbox++; + + if (partX1 < partX2 && partY1 < partY2) { + (*pExaScr->info->Solid) (pPixmap, + partX1 + xoff, partY1 + yoff, + partX2 + xoff, partY2 + yoff); + } + } + } + } + (*pExaScr->info->DoneSolid) (pPixmap); + exaMarkSync(pDrawable->pScreen); + +out: + RegionUninit(pReg); + RegionDestroy(pReg); +} + +const GCOps exaOps = { + exaFillSpans, + ExaCheckSetSpans, + exaPutImage, + exaCopyArea, + ExaCheckCopyPlane, + exaPolyPoint, + exaPolylines, + exaPolySegment, + miPolyRectangle, + ExaCheckPolyArc, + miFillPolygon, + exaPolyFillRect, + miPolyFillArc, + miPolyText8, + miPolyText16, + miImageText8, + miImageText16, + ExaCheckImageGlyphBlt, + ExaCheckPolyGlyphBlt, + ExaCheckPushPixels, +}; + +void +exaCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc) +{ + RegionRec rgnDst; + int dx, dy; + PixmapPtr pPixmap = (*pWin->drawable.pScreen->GetWindowPixmap) (pWin); + ExaScreenPriv(pWin->drawable.pScreen); + + dx = ptOldOrg.x - pWin->drawable.x; + dy = ptOldOrg.y - pWin->drawable.y; + RegionTranslate(prgnSrc, -dx, -dy); + + RegionInit(&rgnDst, NullBox, 0); + + RegionIntersect(&rgnDst, &pWin->borderClip, prgnSrc); +#ifdef COMPOSITE + if (pPixmap->screen_x || pPixmap->screen_y) + RegionTranslate(&rgnDst, + -pPixmap->screen_x, -pPixmap->screen_y); +#endif + + if (pExaScr->fallback_counter) { + pExaScr->fallback_flags |= EXA_FALLBACK_COPYWINDOW; + goto fallback; + } + + pExaScr->fallback_flags |= EXA_ACCEL_COPYWINDOW; + miCopyRegion (&pPixmap->drawable, &pPixmap->drawable, + NULL, + &rgnDst, dx, dy, exaCopyNtoN, 0, NULL); + pExaScr->fallback_flags &= ~EXA_ACCEL_COPYWINDOW; + +fallback: + RegionUninit(&rgnDst); + + if (pExaScr->fallback_flags & EXA_FALLBACK_COPYWINDOW) { + pExaScr->fallback_flags &= ~EXA_FALLBACK_COPYWINDOW; + RegionTranslate(prgnSrc, dx, dy); + ExaCheckCopyWindow(pWin, ptOldOrg, prgnSrc); + } +} + +static Bool +exaFillRegionSolid (DrawablePtr pDrawable, RegionPtr pRegion, Pixel pixel, + CARD32 planemask, CARD32 alu, unsigned int clientClipType) +{ + ExaScreenPriv(pDrawable->pScreen); + PixmapPtr pPixmap = exaGetDrawablePixmap (pDrawable); + ExaPixmapPriv (pPixmap); + int xoff, yoff; + Bool ret = FALSE; + + exaGetDrawableDeltas(pDrawable, pPixmap, &xoff, &yoff); + RegionTranslate(pRegion, xoff, yoff); + + if (pExaScr->fallback_counter || pExaPixmap->accel_blocked) + goto out; + + if (pExaScr->do_migration) { + ExaMigrationRec pixmaps[1]; + + pixmaps[0].as_dst = TRUE; + pixmaps[0].as_src = FALSE; + pixmaps[0].pPix = pPixmap; + pixmaps[0].pReg = exaGCReadsDestination(pDrawable, planemask, FillSolid, + alu, clientClipType) ? NULL : pRegion; + + exaDoMigration (pixmaps, 1, TRUE); + } + + if (exaPixmapHasGpuCopy (pPixmap) && + (*pExaScr->info->PrepareSolid) (pPixmap, alu, planemask, pixel)) + { + int nbox; + BoxPtr pBox; + + nbox = RegionNumRects (pRegion); + pBox = RegionRects (pRegion); + + while (nbox--) + { + (*pExaScr->info->Solid) (pPixmap, pBox->x1, pBox->y1, pBox->x2, + pBox->y2); + pBox++; + } + (*pExaScr->info->DoneSolid) (pPixmap); + exaMarkSync(pDrawable->pScreen); + + if (pExaPixmap->pDamage && + pExaPixmap->sys_ptr && pDrawable->type == DRAWABLE_PIXMAP && + pDrawable->width == 1 && pDrawable->height == 1 && + pDrawable->bitsPerPixel != 24) { + ExaPixmapPriv(pPixmap); + RegionPtr pending_damage = DamagePendingRegion(pExaPixmap->pDamage); + + switch (pDrawable->bitsPerPixel) { + case 32: + *(CARD32*)pExaPixmap->sys_ptr = pixel; + break; + case 16: + *(CARD16*)pExaPixmap->sys_ptr = pixel; + break; + case 8: + case 4: + case 1: + *(CARD8*)pExaPixmap->sys_ptr = pixel; + } + + RegionUnion(&pExaPixmap->validSys, &pExaPixmap->validSys, + pRegion); + RegionUnion(&pExaPixmap->validFB, &pExaPixmap->validFB, + pRegion); + RegionSubtract(pending_damage, pending_damage, pRegion); + } + + ret = TRUE; + } + +out: + RegionTranslate(pRegion, -xoff, -yoff); + + return ret; +} + +/* Try to do an accelerated tile of the pTile into pRegion of pDrawable. + * Based on fbFillRegionTiled(), fbTile(). + */ +Bool +exaFillRegionTiled (DrawablePtr pDrawable, RegionPtr pRegion, PixmapPtr pTile, + DDXPointPtr pPatOrg, CARD32 planemask, CARD32 alu, + unsigned int clientClipType) +{ + ExaScreenPriv(pDrawable->pScreen); + PixmapPtr pPixmap; + ExaPixmapPrivPtr pExaPixmap; + ExaPixmapPrivPtr pTileExaPixmap = ExaGetPixmapPriv(pTile); + int xoff, yoff; + int tileWidth, tileHeight; + int nbox = RegionNumRects (pRegion); + BoxPtr pBox = RegionRects (pRegion); + Bool ret = FALSE; + int i; + + tileWidth = pTile->drawable.width; + tileHeight = pTile->drawable.height; + + /* If we're filling with a solid color, grab it out and go to + * FillRegionSolid, saving numerous copies. + */ + if (tileWidth == 1 && tileHeight == 1) + return exaFillRegionSolid(pDrawable, pRegion, + exaGetPixmapFirstPixel (pTile), planemask, + alu, clientClipType); + + pPixmap = exaGetDrawablePixmap (pDrawable); + pExaPixmap = ExaGetPixmapPriv (pPixmap); + + if (pExaScr->fallback_counter || pExaPixmap->accel_blocked || + pTileExaPixmap->accel_blocked) + return FALSE; + + if (pExaScr->do_migration) { + ExaMigrationRec pixmaps[2]; + + pixmaps[0].as_dst = TRUE; + pixmaps[0].as_src = FALSE; + pixmaps[0].pPix = pPixmap; + pixmaps[0].pReg = exaGCReadsDestination(pDrawable, planemask, FillTiled, + alu, clientClipType) ? NULL : pRegion; + pixmaps[1].as_dst = FALSE; + pixmaps[1].as_src = TRUE; + pixmaps[1].pPix = pTile; + pixmaps[1].pReg = NULL; + + exaDoMigration (pixmaps, 2, TRUE); + } + + pPixmap = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff); + + if (!pPixmap || !exaPixmapHasGpuCopy(pTile)) + return FALSE; + + if ((*pExaScr->info->PrepareCopy) (pTile, pPixmap, 1, 1, alu, planemask)) + { + if (xoff || yoff) + RegionTranslate(pRegion, xoff, yoff); + + for (i = 0; i < nbox; i++) + { + int height = pBox[i].y2 - pBox[i].y1; + int dstY = pBox[i].y1; + int tileY; + + if (alu == GXcopy) + height = min(height, tileHeight); + + modulus(dstY - yoff - pDrawable->y - pPatOrg->y, tileHeight, tileY); + + while (height > 0) { + int width = pBox[i].x2 - pBox[i].x1; + int dstX = pBox[i].x1; + int tileX; + int h = tileHeight - tileY; + + if (alu == GXcopy) + width = min(width, tileWidth); + + if (h > height) + h = height; + height -= h; + + modulus(dstX - xoff - pDrawable->x - pPatOrg->x, tileWidth, + tileX); + + while (width > 0) { + int w = tileWidth - tileX; + if (w > width) + w = width; + width -= w; + + (*pExaScr->info->Copy) (pPixmap, tileX, tileY, dstX, dstY, + w, h); + dstX += w; + tileX = 0; + } + dstY += h; + tileY = 0; + } + } + (*pExaScr->info->DoneCopy) (pPixmap); + + /* With GXcopy, we only need to do the basic algorithm up to the tile + * size; then, we can just keep doubling the destination in each + * direction until it fills the box. This way, the number of copy + * operations is O(log(rx)) + O(log(ry)) instead of O(rx * ry), where + * rx/ry is the ratio between box and tile width/height. This can make + * a big difference if each driver copy incurs a significant constant + * overhead. + */ + if (alu != GXcopy) + ret = TRUE; + else { + Bool more_copy = FALSE; + + for (i = 0; i < nbox; i++) { + int dstX = pBox[i].x1 + tileWidth; + int dstY = pBox[i].y1 + tileHeight; + + if ((dstX < pBox[i].x2) || (dstY < pBox[i].y2)) { + more_copy = TRUE; + break; + } + } + + if (more_copy == FALSE) + ret = TRUE; + + if (more_copy && (*pExaScr->info->PrepareCopy) (pPixmap, pPixmap, + 1, 1, alu, planemask)) { + for (i = 0; i < nbox; i++) + { + int dstX = pBox[i].x1 + tileWidth; + int dstY = pBox[i].y1 + tileHeight; + int width = min(pBox[i].x2 - dstX, tileWidth); + int height = min(pBox[i].y2 - pBox[i].y1, tileHeight); + + while (dstX < pBox[i].x2) { + (*pExaScr->info->Copy) (pPixmap, pBox[i].x1, pBox[i].y1, + dstX, pBox[i].y1, width, height); + dstX += width; + width = min(pBox[i].x2 - dstX, width * 2); + } + + width = pBox[i].x2 - pBox[i].x1; + height = min(pBox[i].y2 - dstY, tileHeight); + + while (dstY < pBox[i].y2) { + (*pExaScr->info->Copy) (pPixmap, pBox[i].x1, pBox[i].y1, + pBox[i].x1, dstY, width, height); + dstY += height; + height = min(pBox[i].y2 - dstY, height * 2); + } + } + + (*pExaScr->info->DoneCopy) (pPixmap); + + ret = TRUE; + } + } + + exaMarkSync(pDrawable->pScreen); + + if (xoff || yoff) + RegionTranslate(pRegion, -xoff, -yoff); + } + + return ret; +} + + +/** + * Accelerates GetImage for solid ZPixmap downloads from framebuffer memory. + * + * This is probably the only case we actually care about. The rest fall through + * to migration and fbGetImage, which hopefully will result in migration pushing + * the pixmap out of framebuffer. + */ +void +exaGetImage (DrawablePtr pDrawable, int x, int y, int w, int h, + unsigned int format, unsigned long planeMask, char *d) +{ + ExaScreenPriv (pDrawable->pScreen); + PixmapPtr pPix = exaGetDrawablePixmap (pDrawable); + ExaPixmapPriv(pPix); + int xoff, yoff; + Bool ok; + + if (pExaScr->fallback_counter || pExaScr->swappedOut) + goto fallback; + + /* If there's a system copy, we want to save the result there */ + if (pExaPixmap->pDamage) + goto fallback; + + pPix = exaGetOffscreenPixmap (pDrawable, &xoff, &yoff); + + if (pPix == NULL || pExaScr->info->DownloadFromScreen == NULL) + goto fallback; + + /* Only cover the ZPixmap, solid copy case. */ + if (format != ZPixmap || !EXA_PM_IS_SOLID(pDrawable, planeMask)) + goto fallback; + + /* Only try to handle the 8bpp and up cases, since we don't want to think + * about <8bpp. + */ + if (pDrawable->bitsPerPixel < 8) + goto fallback; + + ok = pExaScr->info->DownloadFromScreen(pPix, pDrawable->x + x + xoff, + pDrawable->y + y + yoff, w, h, d, + PixmapBytePad(w, pDrawable->depth)); + if (ok) { + exaWaitSync(pDrawable->pScreen); + return; + } + +fallback: + ExaCheckGetImage(pDrawable, x, y, w, h, format, planeMask, d); +} diff --git a/exa/exa_classic.c b/exa/exa_classic.c new file mode 100644 index 0000000..169ce3a --- /dev/null +++ b/exa/exa_classic.c @@ -0,0 +1,266 @@ +/* + * Copyright © 2009 Maarten Maathuis + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <string.h> + +#include "exa_priv.h" +#include "exa.h" + +/* This file holds the classic exa specific implementation. */ + +static _X_INLINE void* +ExaGetPixmapAddress(PixmapPtr p) +{ + ExaPixmapPriv(p); + + if (pExaPixmap->use_gpu_copy && pExaPixmap->fb_ptr) + return pExaPixmap->fb_ptr; + else + return pExaPixmap->sys_ptr; +} + +/** + * exaCreatePixmap() creates a new pixmap. + * + * If width and height are 0, this won't be a full-fledged pixmap and it will + * get ModifyPixmapHeader() called on it later. So, we mark it as pinned, because + * ModifyPixmapHeader() would break migration. These types of pixmaps are used + * for scratch pixmaps, or to represent the visible screen. + */ +PixmapPtr +exaCreatePixmap_classic(ScreenPtr pScreen, int w, int h, int depth, + unsigned usage_hint) +{ + PixmapPtr pPixmap; + ExaPixmapPrivPtr pExaPixmap; + BoxRec box; + int bpp; + ExaScreenPriv(pScreen); + + if (w > 32767 || h > 32767) + return NullPixmap; + + swap(pExaScr, pScreen, CreatePixmap); + pPixmap = pScreen->CreatePixmap (pScreen, w, h, depth, usage_hint); + swap(pExaScr, pScreen, CreatePixmap); + + if (!pPixmap) + return NULL; + + pExaPixmap = ExaGetPixmapPriv(pPixmap); + pExaPixmap->driverPriv = NULL; + + bpp = pPixmap->drawable.bitsPerPixel; + + pExaPixmap->driverPriv = NULL; + /* Scratch pixmaps may have w/h equal to zero, and may not be + * migrated. + */ + if (!w || !h) + pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED; + else + pExaPixmap->score = EXA_PIXMAP_SCORE_INIT; + + pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr; + pExaPixmap->sys_pitch = pPixmap->devKind; + + pPixmap->devPrivate.ptr = NULL; + pExaPixmap->use_gpu_copy = FALSE; + + pExaPixmap->fb_ptr = NULL; + exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp); + pExaPixmap->fb_size = pExaPixmap->fb_pitch * h; + + if (pExaPixmap->fb_pitch > 131071) { + swap(pExaScr, pScreen, DestroyPixmap); + pScreen->DestroyPixmap (pPixmap); + swap(pExaScr, pScreen, DestroyPixmap); + return NULL; + } + + /* Set up damage tracking */ + pExaPixmap->pDamage = DamageCreate (NULL, NULL, + DamageReportNone, TRUE, + pScreen, pPixmap); + + if (pExaPixmap->pDamage == NULL) { + swap(pExaScr, pScreen, DestroyPixmap); + pScreen->DestroyPixmap (pPixmap); + swap(pExaScr, pScreen, DestroyPixmap); + return NULL; + } + + DamageRegister (&pPixmap->drawable, pExaPixmap->pDamage); + /* This ensures that pending damage reflects the current operation. */ + /* This is used by exa to optimize migration. */ + DamageSetReportAfterOp (pExaPixmap->pDamage, TRUE); + + pExaPixmap->area = NULL; + + /* We set the initial pixmap as completely valid for a simple reason. + * Imagine a 1000x1000 pixmap, it has 1 million pixels, 250000 of which + * could form single pixel rects as part of a region. Setting the complete region + * as valid is a natural defragmentation of the region. + */ + box.x1 = 0; + box.y1 = 0; + box.x2 = w; + box.y2 = h; + RegionInit(&pExaPixmap->validSys, &box, 0); + RegionInit(&pExaPixmap->validFB, &box, 0); + + exaSetAccelBlock(pExaScr, pExaPixmap, + w, h, bpp); + + /* During a fallback we must prepare access. */ + if (pExaScr->fallback_counter) + exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_AUX_DEST); + + return pPixmap; +} + +Bool +exaModifyPixmapHeader_classic(PixmapPtr pPixmap, int width, int height, int depth, + int bitsPerPixel, int devKind, pointer pPixData) +{ + ScreenPtr pScreen; + ExaScreenPrivPtr pExaScr; + ExaPixmapPrivPtr pExaPixmap; + Bool ret; + + if (!pPixmap) + return FALSE; + + pScreen = pPixmap->drawable.pScreen; + pExaScr = ExaGetScreenPriv(pScreen); + pExaPixmap = ExaGetPixmapPriv(pPixmap); + + if (pExaPixmap) { + if (pPixData) + pExaPixmap->sys_ptr = pPixData; + + if (devKind > 0) + pExaPixmap->sys_pitch = devKind; + + /* Classic EXA: + * - Framebuffer. + * - Scratch pixmap with gpu memory. + */ + if (pExaScr->info->memoryBase && pPixData) { + if ((CARD8 *)pPixData >= pExaScr->info->memoryBase && + ((CARD8 *)pPixData - pExaScr->info->memoryBase) < + pExaScr->info->memorySize) { + pExaPixmap->fb_ptr = pPixData; + pExaPixmap->fb_pitch = devKind; + pExaPixmap->use_gpu_copy = TRUE; + } + } + + if (width > 0 && height > 0 && bitsPerPixel > 0) { + exaSetFbPitch(pExaScr, pExaPixmap, + width, height, bitsPerPixel); + + exaSetAccelBlock(pExaScr, pExaPixmap, + width, height, bitsPerPixel); + } + + /* Pixmaps subject to ModifyPixmapHeader will be pinned to system or + * gpu memory, so there's no need to track damage. + */ + if (pExaPixmap->pDamage) { + DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage); + DamageDestroy(pExaPixmap->pDamage); + pExaPixmap->pDamage = NULL; + } + } + + swap(pExaScr, pScreen, ModifyPixmapHeader); + ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth, + bitsPerPixel, devKind, pPixData); + swap(pExaScr, pScreen, ModifyPixmapHeader); + + /* Always NULL this, we don't want lingering pointers. */ + pPixmap->devPrivate.ptr = NULL; + + return ret; +} + +Bool +exaDestroyPixmap_classic (PixmapPtr pPixmap) +{ + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPriv(pScreen); + Bool ret; + + if (pPixmap->refcnt == 1) + { + ExaPixmapPriv (pPixmap); + + exaDestroyPixmap(pPixmap); + + if (pExaPixmap->area) + { + DBG_PIXMAP(("-- 0x%p (0x%x) (%dx%d)\n", + (void*)pPixmap->drawable.id, + ExaGetPixmapPriv(pPixmap)->area->offset, + pPixmap->drawable.width, + pPixmap->drawable.height)); + /* Free the offscreen area */ + exaOffscreenFree (pPixmap->drawable.pScreen, pExaPixmap->area); + pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr; + pPixmap->devKind = pExaPixmap->sys_pitch; + } + RegionUninit(&pExaPixmap->validSys); + RegionUninit(&pExaPixmap->validFB); + } + + swap(pExaScr, pScreen, DestroyPixmap); + ret = pScreen->DestroyPixmap (pPixmap); + swap(pExaScr, pScreen, DestroyPixmap); + + return ret; +} + +Bool +exaPixmapHasGpuCopy_classic(PixmapPtr pPixmap) +{ + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPriv(pScreen); + ExaPixmapPriv(pPixmap); + Bool ret; + + if (pExaScr->info->PixmapIsOffscreen) { + void* old_ptr = pPixmap->devPrivate.ptr; + pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap); + ret = pExaScr->info->PixmapIsOffscreen(pPixmap); + pPixmap->devPrivate.ptr = old_ptr; + } else + ret = (pExaPixmap->use_gpu_copy && pExaPixmap->fb_ptr); + + return ret; +} diff --git a/exa/exa_driver.c b/exa/exa_driver.c new file mode 100644 index 0000000..b9903d1 --- /dev/null +++ b/exa/exa_driver.c @@ -0,0 +1,226 @@ +/* + * Copyright © 2009 Maarten Maathuis + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <string.h> + +#include "exa_priv.h" +#include "exa.h" + +/* This file holds the driver allocated pixmaps specific implementation. */ + +static _X_INLINE void* +ExaGetPixmapAddress(PixmapPtr p) +{ + ExaPixmapPriv(p); + + return pExaPixmap->sys_ptr; +} + +/** + * exaCreatePixmap() creates a new pixmap. + * + * Pixmaps are always marked as pinned, because exa has no control over them. + */ +PixmapPtr +exaCreatePixmap_driver(ScreenPtr pScreen, int w, int h, int depth, + unsigned usage_hint) +{ + PixmapPtr pPixmap; + ExaPixmapPrivPtr pExaPixmap; + int bpp; + size_t paddedWidth, datasize; + ExaScreenPriv(pScreen); + + if (w > 32767 || h > 32767) + return NullPixmap; + + swap(pExaScr, pScreen, CreatePixmap); + pPixmap = pScreen->CreatePixmap(pScreen, 0, 0, depth, usage_hint); + swap(pExaScr, pScreen, CreatePixmap); + + if (!pPixmap) + return NULL; + + pExaPixmap = ExaGetPixmapPriv(pPixmap); + pExaPixmap->driverPriv = NULL; + + bpp = pPixmap->drawable.bitsPerPixel; + + /* Set this before driver hooks, to allow for driver pixmaps without gpu + * memory to back it. These pixmaps have a valid pointer at all times. + */ + pPixmap->devPrivate.ptr = NULL; + + if (pExaScr->info->CreatePixmap2) { + int new_pitch = 0; + pExaPixmap->driverPriv = pExaScr->info->CreatePixmap2(pScreen, w, h, depth, usage_hint, bpp, &new_pitch); + paddedWidth = pExaPixmap->fb_pitch = new_pitch; + } + else { + paddedWidth = ((w * bpp + FB_MASK) >> FB_SHIFT) * sizeof(FbBits); + if (paddedWidth / 4 > 32767 || h > 32767) + return NullPixmap; + + exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp); + + if (paddedWidth < pExaPixmap->fb_pitch) + paddedWidth = pExaPixmap->fb_pitch; + datasize = h * paddedWidth; + pExaPixmap->driverPriv = pExaScr->info->CreatePixmap(pScreen, datasize, 0); + } + + if (!pExaPixmap->driverPriv) { + swap(pExaScr, pScreen, DestroyPixmap); + pScreen->DestroyPixmap (pPixmap); + swap(pExaScr, pScreen, DestroyPixmap); + return NULL; + } + + /* Allow ModifyPixmapHeader to set sys_ptr appropriately. */ + pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED; + pExaPixmap->fb_ptr = NULL; + pExaPixmap->pDamage = NULL; + pExaPixmap->sys_ptr = NULL; + + (*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0, + paddedWidth, NULL); + + pExaPixmap->area = NULL; + + exaSetAccelBlock(pExaScr, pExaPixmap, + w, h, bpp); + + pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap); + + /* During a fallback we must prepare access. */ + if (pExaScr->fallback_counter) + exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_AUX_DEST); + + return pPixmap; +} + +Bool +exaModifyPixmapHeader_driver(PixmapPtr pPixmap, int width, int height, int depth, + int bitsPerPixel, int devKind, pointer pPixData) +{ + ScreenPtr pScreen; + ExaScreenPrivPtr pExaScr; + ExaPixmapPrivPtr pExaPixmap; + Bool ret; + + if (!pPixmap) + return FALSE; + + pScreen = pPixmap->drawable.pScreen; + pExaScr = ExaGetScreenPriv(pScreen); + pExaPixmap = ExaGetPixmapPriv(pPixmap); + + if (pExaPixmap) { + if (pPixData) + pExaPixmap->sys_ptr = pPixData; + + if (devKind > 0) + pExaPixmap->sys_pitch = devKind; + + if (width > 0 && height > 0 && bitsPerPixel > 0) { + exaSetFbPitch(pExaScr, pExaPixmap, + width, height, bitsPerPixel); + + exaSetAccelBlock(pExaScr, pExaPixmap, + width, height, bitsPerPixel); + } + } + + if (pExaScr->info->ModifyPixmapHeader) { + ret = pExaScr->info->ModifyPixmapHeader(pPixmap, width, height, depth, + bitsPerPixel, devKind, pPixData); + /* For EXA_HANDLES_PIXMAPS, we set pPixData to NULL. + * If pPixmap->devPrivate.ptr is non-NULL, then we've got a + * !has_gpu_copy pixmap. We need to store the pointer, + * because PrepareAccess won't be called. + */ + if (!pPixData && pPixmap->devPrivate.ptr && pPixmap->devKind) { + pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr; + pExaPixmap->sys_pitch = pPixmap->devKind; + } + if (ret == TRUE) + goto out; + } + + swap(pExaScr, pScreen, ModifyPixmapHeader); + ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth, + bitsPerPixel, devKind, pPixData); + swap(pExaScr, pScreen, ModifyPixmapHeader); + +out: + /* Always NULL this, we don't want lingering pointers. */ + pPixmap->devPrivate.ptr = NULL; + + return ret; +} + +Bool +exaDestroyPixmap_driver (PixmapPtr pPixmap) +{ + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPriv(pScreen); + Bool ret; + + if (pPixmap->refcnt == 1) + { + ExaPixmapPriv (pPixmap); + + exaDestroyPixmap(pPixmap); + + if (pExaPixmap->driverPriv) + pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv); + pExaPixmap->driverPriv = NULL; + } + + swap(pExaScr, pScreen, DestroyPixmap); + ret = pScreen->DestroyPixmap (pPixmap); + swap(pExaScr, pScreen, DestroyPixmap); + + return ret; +} + +Bool +exaPixmapHasGpuCopy_driver(PixmapPtr pPixmap) +{ + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPriv(pScreen); + pointer saved_ptr; + Bool ret; + + saved_ptr = pPixmap->devPrivate.ptr; + pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap); + ret = pExaScr->info->PixmapIsOffscreen(pPixmap); + pPixmap->devPrivate.ptr = saved_ptr; + + return ret; +} diff --git a/exa/exa_glyphs.c b/exa/exa_glyphs.c new file mode 100644 index 0000000..5c46ec9 --- /dev/null +++ b/exa/exa_glyphs.c @@ -0,0 +1,863 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * Partly based on code Copyright © 2000 SuSE, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Red Hat not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. Red Hat makes no representations about the + * suitability of this software for any purpose. It is provided "as is" + * without express or implied warranty. + * + * Red Hat DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL Red Hat + * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of SuSE not be used in advertising or + * publicity pertaining to distribution of the software without specific, + * written prior permission. SuSE makes no representations about the + * suitability of this software for any purpose. It is provided "as is" + * without express or implied warranty. + * + * SuSE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL SuSE + * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Owen Taylor <otaylor@fishsoup.net> + * Based on code by: Keith Packard + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <stdlib.h> + +#include "exa_priv.h" + +#include "mipict.h" + +#if DEBUG_GLYPH_CACHE +#define DBG_GLYPH_CACHE(a) ErrorF a +#else +#define DBG_GLYPH_CACHE(a) +#endif + +/* Width of the pixmaps we use for the caches; this should be less than + * max texture size of the driver; this may need to actually come from + * the driver. + */ +#define CACHE_PICTURE_WIDTH 1024 + +/* Maximum number of glyphs we buffer on the stack before flushing + * rendering to the mask or destination surface. + */ +#define GLYPH_BUFFER_SIZE 256 + +typedef struct { + PicturePtr mask; + ExaCompositeRectRec rects[GLYPH_BUFFER_SIZE]; + int count; +} ExaGlyphBuffer, *ExaGlyphBufferPtr; + +typedef enum { + ExaGlyphSuccess, /* Glyph added to render buffer */ + ExaGlyphFail, /* out of memory, etc */ + ExaGlyphNeedFlush, /* would evict a glyph already in the buffer */ +} ExaGlyphCacheResult; + +void +exaGlyphsInit(ScreenPtr pScreen) +{ + ExaScreenPriv(pScreen); + int i = 0; + + memset(pExaScr->glyphCaches, 0, sizeof(pExaScr->glyphCaches)); + + pExaScr->glyphCaches[i].format = PICT_a8; + pExaScr->glyphCaches[i].glyphWidth = pExaScr->glyphCaches[i].glyphHeight = 16; + i++; + pExaScr->glyphCaches[i].format = PICT_a8; + pExaScr->glyphCaches[i].glyphWidth = pExaScr->glyphCaches[i].glyphHeight = 32; + i++; + pExaScr->glyphCaches[i].format = PICT_a8r8g8b8; + pExaScr->glyphCaches[i].glyphWidth = pExaScr->glyphCaches[i].glyphHeight = 16; + i++; + pExaScr->glyphCaches[i].format = PICT_a8r8g8b8; + pExaScr->glyphCaches[i].glyphWidth = pExaScr->glyphCaches[i].glyphHeight = 32; + i++; + + assert(i == EXA_NUM_GLYPH_CACHES); + + for (i = 0; i < EXA_NUM_GLYPH_CACHES; i++) { + pExaScr->glyphCaches[i].columns = CACHE_PICTURE_WIDTH / pExaScr->glyphCaches[i].glyphWidth; + pExaScr->glyphCaches[i].size = 256; + pExaScr->glyphCaches[i].hashSize = 557; + } +} + +static void +exaUnrealizeGlyphCaches(ScreenPtr pScreen, + unsigned int format) +{ + ExaScreenPriv(pScreen); + int i; + + for (i = 0; i < EXA_NUM_GLYPH_CACHES; i++) { + ExaGlyphCachePtr cache = &pExaScr->glyphCaches[i]; + + if (cache->format != format) + continue; + + if (cache->picture) { + FreePicture ((pointer) cache->picture, (XID) 0); + cache->picture = NULL; + } + + free(cache->hashEntries); + cache->hashEntries = NULL; + + free(cache->glyphs); + cache->glyphs = NULL; + cache->glyphCount = 0; + } +} + +#define NeedsComponent(f) (PICT_FORMAT_A(f) != 0 && PICT_FORMAT_RGB(f) != 0) + +/* All caches for a single format share a single pixmap for glyph storage, + * allowing mixing glyphs of different sizes without paying a penalty + * for switching between mask pixmaps. (Note that for a size of font + * right at the border between two sizes, we might be switching for almost + * every glyph.) + * + * This function allocates the storage pixmap, and then fills in the + * rest of the allocated structures for all caches with the given format. + */ +static Bool +exaRealizeGlyphCaches(ScreenPtr pScreen, + unsigned int format) +{ + ExaScreenPriv(pScreen); + + int depth = PIXMAN_FORMAT_DEPTH(format); + PictFormatPtr pPictFormat; + PixmapPtr pPixmap; + PicturePtr pPicture; + CARD32 component_alpha; + int height; + int i; + int error; + + pPictFormat = PictureMatchFormat(pScreen, depth, format); + if (!pPictFormat) + return FALSE; + + /* Compute the total vertical size needed for the format */ + + height = 0; + for (i = 0; i < EXA_NUM_GLYPH_CACHES; i++) { + ExaGlyphCachePtr cache = &pExaScr->glyphCaches[i]; + int rows; + + if (cache->format != format) + continue; + + cache->yOffset = height; + + rows = (cache->size + cache->columns - 1) / cache->columns; + height += rows * cache->glyphHeight; + } + + /* Now allocate the pixmap and picture */ + pPixmap = (*pScreen->CreatePixmap) (pScreen, + CACHE_PICTURE_WIDTH, + height, depth, 0); + if (!pPixmap) + return FALSE; + + component_alpha = NeedsComponent(pPictFormat->format); + pPicture = CreatePicture(0, &pPixmap->drawable, pPictFormat, + CPComponentAlpha, &component_alpha, serverClient, + &error); + + (*pScreen->DestroyPixmap) (pPixmap); /* picture holds a refcount */ + + if (!pPicture) + return FALSE; + + /* And store the picture in all the caches for the format */ + for (i = 0; i < EXA_NUM_GLYPH_CACHES; i++) { + ExaGlyphCachePtr cache = &pExaScr->glyphCaches[i]; + int j; + + if (cache->format != format) + continue; + + cache->picture = pPicture; + cache->picture->refcnt++; + cache->hashEntries = malloc(sizeof(int) * cache->hashSize); + cache->glyphs = malloc(sizeof(ExaCachedGlyphRec) * cache->size); + cache->glyphCount = 0; + + if (!cache->hashEntries || !cache->glyphs) + goto bail; + + for (j = 0; j < cache->hashSize; j++) + cache->hashEntries[j] = -1; + + cache->evictionPosition = rand() % cache->size; + } + + /* Each cache references the picture individually */ + FreePicture ((pointer) pPicture, (XID) 0); + return TRUE; + +bail: + exaUnrealizeGlyphCaches(pScreen, format); + return FALSE; +} + +void +exaGlyphsFini (ScreenPtr pScreen) +{ + ExaScreenPriv(pScreen); + int i; + + for (i = 0; i < EXA_NUM_GLYPH_CACHES; i++) { + ExaGlyphCachePtr cache = &pExaScr->glyphCaches[i]; + + if (cache->picture) + exaUnrealizeGlyphCaches(pScreen, cache->format); + } +} + +static int +exaGlyphCacheHashLookup(ExaGlyphCachePtr cache, + GlyphPtr pGlyph) +{ + int slot; + + slot = (*(CARD32 *) pGlyph->sha1) % cache->hashSize; + + while (TRUE) { /* hash table can never be full */ + int entryPos = cache->hashEntries[slot]; + if (entryPos == -1) + return -1; + + if (memcmp(pGlyph->sha1, cache->glyphs[entryPos].sha1, sizeof(pGlyph->sha1)) == 0){ + return entryPos; + } + + slot--; + if (slot < 0) + slot = cache->hashSize - 1; + } +} + +static void +exaGlyphCacheHashInsert(ExaGlyphCachePtr cache, + GlyphPtr pGlyph, + int pos) +{ + int slot; + + memcpy(cache->glyphs[pos].sha1, pGlyph->sha1, sizeof(pGlyph->sha1)); + + slot = (*(CARD32 *) pGlyph->sha1) % cache->hashSize; + + while (TRUE) { /* hash table can never be full */ + if (cache->hashEntries[slot] == -1) { + cache->hashEntries[slot] = pos; + return; + } + + slot--; + if (slot < 0) + slot = cache->hashSize - 1; + } +} + +static void +exaGlyphCacheHashRemove(ExaGlyphCachePtr cache, + int pos) +{ + int slot; + int emptiedSlot = -1; + + slot = (*(CARD32 *) cache->glyphs[pos].sha1) % cache->hashSize; + + while (TRUE) { /* hash table can never be full */ + int entryPos = cache->hashEntries[slot]; + + if (entryPos == -1) + return; + + if (entryPos == pos) { + cache->hashEntries[slot] = -1; + emptiedSlot = slot; + } else if (emptiedSlot != -1) { + /* See if we can move this entry into the emptied slot, we can't + * do that if if entry would have hashed between the current position + * and the emptied slot. (taking wrapping into account). Bad positions + * are: + * + * | XXXXXXXXXX | + * i j + * + * |XXX XXXX| + * j i + * + * i - slot, j - emptiedSlot + * + * (Knuth 6.4R) + */ + + int entrySlot = (*(CARD32 *) cache->glyphs[entryPos].sha1) % cache->hashSize; + + if (!((entrySlot >= slot && entrySlot < emptiedSlot) || + (emptiedSlot < slot && (entrySlot < emptiedSlot || entrySlot >= slot)))) + { + cache->hashEntries[emptiedSlot] = entryPos; + cache->hashEntries[slot] = -1; + emptiedSlot = slot; + } + } + + slot--; + if (slot < 0) + slot = cache->hashSize - 1; + } +} + +#define CACHE_X(pos) (((pos) % cache->columns) * cache->glyphWidth) +#define CACHE_Y(pos) (cache->yOffset + ((pos) / cache->columns) * cache->glyphHeight) + +/* The most efficient thing to way to upload the glyph to the screen + * is to use the UploadToScreen() driver hook; this allows us to + * pipeline glyph uploads and to avoid creating gpu backed pixmaps for + * glyphs that we'll never use again. + * + * If we can't do it with UploadToScreen (because the glyph has a gpu copy, + * etc), we fall back to CompositePicture. + * + * We need to damage the cache pixmap manually in either case because the damage + * layer unwrapped the picture screen before calling exaGlyphs. + */ +static void +exaGlyphCacheUploadGlyph(ScreenPtr pScreen, + ExaGlyphCachePtr cache, + int x, + int y, + GlyphPtr pGlyph) +{ + ExaScreenPriv(pScreen); + PicturePtr pGlyphPicture = GlyphPicture(pGlyph)[pScreen->myNum]; + PixmapPtr pGlyphPixmap = (PixmapPtr)pGlyphPicture->pDrawable; + ExaPixmapPriv(pGlyphPixmap); + PixmapPtr pCachePixmap = (PixmapPtr)cache->picture->pDrawable; + + if (!pExaScr->info->UploadToScreen || pExaScr->swappedOut || pExaPixmap->accel_blocked) + goto composite; + + /* If the glyph pixmap is already uploaded, no point in doing + * things this way */ + if (exaPixmapHasGpuCopy(pGlyphPixmap)) + goto composite; + + /* UploadToScreen only works if bpp match */ + if (pGlyphPixmap->drawable.bitsPerPixel != pCachePixmap->drawable.bitsPerPixel) + goto composite; + + if (pExaScr->do_migration) { + ExaMigrationRec pixmaps[1]; + + /* cache pixmap must have a gpu copy. */ + pixmaps[0].as_dst = TRUE; + pixmaps[0].as_src = FALSE; + pixmaps[0].pPix = pCachePixmap; + pixmaps[0].pReg = NULL; + exaDoMigration (pixmaps, 1, TRUE); + } + + if (!exaPixmapHasGpuCopy(pCachePixmap)) + goto composite; + + /* x,y are in pixmap coordinates, no need for cache{X,Y}off */ + if (pExaScr->info->UploadToScreen(pCachePixmap, + x, + y, + pGlyph->info.width, + pGlyph->info.height, + (char *)pExaPixmap->sys_ptr, + pExaPixmap->sys_pitch)) + goto damage; + +composite: + CompositePicture (PictOpSrc, + pGlyphPicture, + None, + cache->picture, + 0, 0, + 0, 0, + x, + y, + pGlyph->info.width, + pGlyph->info.height); + +damage: + /* The cache pixmap isn't a window, so no need to offset coordinates. */ + exaPixmapDirty (pCachePixmap, + x, + y, + x + cache->glyphWidth, + y + cache->glyphHeight); +} + +static ExaGlyphCacheResult +exaGlyphCacheBufferGlyph(ScreenPtr pScreen, + ExaGlyphCachePtr cache, + ExaGlyphBufferPtr buffer, + GlyphPtr pGlyph, + PicturePtr pSrc, + PicturePtr pDst, + INT16 xSrc, + INT16 ySrc, + INT16 xMask, + INT16 yMask, + INT16 xDst, + INT16 yDst) +{ + ExaCompositeRectPtr rect; + int pos; + int x, y; + + if (buffer->mask && buffer->mask != cache->picture) + return ExaGlyphNeedFlush; + + if (!cache->picture) { + if (!exaRealizeGlyphCaches(pScreen, cache->format)) + return ExaGlyphFail; + } + + DBG_GLYPH_CACHE(("(%d,%d,%s): buffering glyph %lx\n", + cache->glyphWidth, cache->glyphHeight, cache->format == PICT_a8 ? "A" : "ARGB", + (long)*(CARD32 *) pGlyph->sha1)); + + pos = exaGlyphCacheHashLookup(cache, pGlyph); + if (pos != -1) { + DBG_GLYPH_CACHE((" found existing glyph at %d\n", pos)); + x = CACHE_X(pos); + y = CACHE_Y(pos); + } else { + if (cache->glyphCount < cache->size) { + /* Space remaining; we fill from the start */ + pos = cache->glyphCount; + x = CACHE_X(pos); + y = CACHE_Y(pos); + cache->glyphCount++; + DBG_GLYPH_CACHE((" storing glyph in free space at %d\n", pos)); + + exaGlyphCacheHashInsert(cache, pGlyph, pos); + + } else { + /* Need to evict an entry. We have to see if any glyphs + * already in the output buffer were at this position in + * the cache + */ + pos = cache->evictionPosition; + x = CACHE_X(pos); + y = CACHE_Y(pos); + DBG_GLYPH_CACHE((" evicting glyph at %d\n", pos)); + if (buffer->count) { + int i; + + for (i = 0; i < buffer->count; i++) { + if (pSrc ? + (buffer->rects[i].xMask == x && buffer->rects[i].yMask == y) : + (buffer->rects[i].xSrc == x && buffer->rects[i].ySrc == y)) { + DBG_GLYPH_CACHE((" must flush buffer\n")); + return ExaGlyphNeedFlush; + } + } + } + + /* OK, we're all set, swap in the new glyph */ + exaGlyphCacheHashRemove(cache, pos); + exaGlyphCacheHashInsert(cache, pGlyph, pos); + + /* And pick a new eviction position */ + cache->evictionPosition = rand() % cache->size; + } + + exaGlyphCacheUploadGlyph(pScreen, cache, x, y, pGlyph); + } + + buffer->mask = cache->picture; + + rect = &buffer->rects[buffer->count]; + + if (pSrc) + { + rect->xSrc = xSrc; + rect->ySrc = ySrc; + rect->xMask = x; + rect->yMask = y; + } + else + { + rect->xSrc = x; + rect->ySrc = y; + rect->xMask = 0; + rect->yMask = 0; + } + + rect->pDst = pDst; + rect->xDst = xDst; + rect->yDst = yDst; + rect->width = pGlyph->info.width; + rect->height = pGlyph->info.height; + + buffer->count++; + + return ExaGlyphSuccess; +} + +#undef CACHE_X +#undef CACHE_Y + +static ExaGlyphCacheResult +exaBufferGlyph(ScreenPtr pScreen, + ExaGlyphBufferPtr buffer, + GlyphPtr pGlyph, + PicturePtr pSrc, + PicturePtr pDst, + INT16 xSrc, + INT16 ySrc, + INT16 xMask, + INT16 yMask, + INT16 xDst, + INT16 yDst) +{ + ExaScreenPriv(pScreen); + unsigned int format = (GlyphPicture(pGlyph)[pScreen->myNum])->format; + int width = pGlyph->info.width; + int height = pGlyph->info.height; + ExaCompositeRectPtr rect; + PicturePtr mask; + int i; + + if (buffer->count == GLYPH_BUFFER_SIZE) + return ExaGlyphNeedFlush; + + if (PICT_FORMAT_BPP(format) == 1) + format = PICT_a8; + + for (i = 0; i < EXA_NUM_GLYPH_CACHES; i++) { + ExaGlyphCachePtr cache = &pExaScr->glyphCaches[i]; + + if (format == cache->format && + width <= cache->glyphWidth && + height <= cache->glyphHeight) { + ExaGlyphCacheResult result = exaGlyphCacheBufferGlyph(pScreen, + &pExaScr->glyphCaches[i], + buffer, + pGlyph, + pSrc, + pDst, + xSrc, ySrc, + xMask, yMask, + xDst, yDst); + switch (result) { + case ExaGlyphFail: + break; + case ExaGlyphSuccess: + case ExaGlyphNeedFlush: + return result; + } + } + } + + /* Couldn't find the glyph in the cache, use the glyph picture directly */ + + mask = GlyphPicture(pGlyph)[pScreen->myNum]; + if (buffer->mask && buffer->mask != mask) + return ExaGlyphNeedFlush; + + buffer->mask = mask; + + rect = &buffer->rects[buffer->count]; + rect->xSrc = xSrc; + rect->ySrc = ySrc; + rect->xMask = xMask; + rect->yMask = yMask; + rect->xDst = xDst; + rect->yDst = yDst; + rect->width = width; + rect->height = height; + + buffer->count++; + + return ExaGlyphSuccess; +} + +static void +exaGlyphsToMask(PicturePtr pMask, + ExaGlyphBufferPtr buffer) +{ + exaCompositeRects(PictOpAdd, buffer->mask, NULL, pMask, + buffer->count, buffer->rects); + + buffer->count = 0; + buffer->mask = NULL; +} + +static void +exaGlyphsToDst(PicturePtr pSrc, + PicturePtr pDst, + ExaGlyphBufferPtr buffer) +{ + exaCompositeRects(PictOpOver, pSrc, buffer->mask, pDst, buffer->count, + buffer->rects); + + buffer->count = 0; + buffer->mask = NULL; +} + +/* Cut and paste from render/glyph.c - probably should export it instead */ +static void +GlyphExtents (int nlist, + GlyphListPtr list, + GlyphPtr *glyphs, + BoxPtr extents) +{ + int x1, x2, y1, y2; + int n; + GlyphPtr glyph; + int x, y; + + x = 0; + y = 0; + extents->x1 = MAXSHORT; + extents->x2 = MINSHORT; + extents->y1 = MAXSHORT; + extents->y2 = MINSHORT; + while (nlist--) + { + x += list->xOff; + y += list->yOff; + n = list->len; + list++; + while (n--) + { + glyph = *glyphs++; + x1 = x - glyph->info.x; + if (x1 < MINSHORT) + x1 = MINSHORT; + y1 = y - glyph->info.y; + if (y1 < MINSHORT) + y1 = MINSHORT; + x2 = x1 + glyph->info.width; + if (x2 > MAXSHORT) + x2 = MAXSHORT; + y2 = y1 + glyph->info.height; + if (y2 > MAXSHORT) + y2 = MAXSHORT; + if (x1 < extents->x1) + extents->x1 = x1; + if (x2 > extents->x2) + extents->x2 = x2; + if (y1 < extents->y1) + extents->y1 = y1; + if (y2 > extents->y2) + extents->y2 = y2; + x += glyph->info.xOff; + y += glyph->info.yOff; + } + } +} + +void +exaGlyphs (CARD8 op, + PicturePtr pSrc, + PicturePtr pDst, + PictFormatPtr maskFormat, + INT16 xSrc, + INT16 ySrc, + int nlist, + GlyphListPtr list, + GlyphPtr *glyphs) +{ + PixmapPtr pMaskPixmap = 0; + PicturePtr pMask = NULL; + ScreenPtr pScreen = pDst->pDrawable->pScreen; + int width = 0, height = 0; + int x, y; + int first_xOff = list->xOff, first_yOff = list->yOff; + int n; + GlyphPtr glyph; + int error; + BoxRec extents = {0, 0, 0, 0}; + CARD32 component_alpha; + ExaGlyphBuffer buffer; + + if (maskFormat) + { + ExaScreenPriv(pScreen); + GCPtr pGC; + xRectangle rect; + + GlyphExtents (nlist, list, glyphs, &extents); + + if (extents.x2 <= extents.x1 || extents.y2 <= extents.y1) + return; + width = extents.x2 - extents.x1; + height = extents.y2 - extents.y1; + + if (maskFormat->depth == 1) { + PictFormatPtr a8Format = PictureMatchFormat (pScreen, 8, PICT_a8); + + if (a8Format) + maskFormat = a8Format; + } + + pMaskPixmap = (*pScreen->CreatePixmap) (pScreen, width, height, + maskFormat->depth, + CREATE_PIXMAP_USAGE_SCRATCH); + if (!pMaskPixmap) + return; + component_alpha = NeedsComponent(maskFormat->format); + pMask = CreatePicture (0, &pMaskPixmap->drawable, + maskFormat, CPComponentAlpha, &component_alpha, + serverClient, &error); + if (!pMask || + (!component_alpha && pExaScr->info->CheckComposite && + !(*pExaScr->info->CheckComposite) (PictOpAdd, pSrc, NULL, pMask))) + { + PictFormatPtr argbFormat; + + (*pScreen->DestroyPixmap) (pMaskPixmap); + + if (!pMask) + return; + + /* The driver can't seem to composite to a8, let's try argb (but + * without component-alpha) */ + FreePicture ((pointer) pMask, (XID) 0); + + argbFormat = PictureMatchFormat (pScreen, 32, PICT_a8r8g8b8); + + if (argbFormat) + maskFormat = argbFormat; + + pMaskPixmap = (*pScreen->CreatePixmap) (pScreen, width, height, + maskFormat->depth, + CREATE_PIXMAP_USAGE_SCRATCH); + if (!pMaskPixmap) + return; + + pMask = CreatePicture (0, &pMaskPixmap->drawable, maskFormat, 0, 0, + serverClient, &error); + if (!pMask) { + (*pScreen->DestroyPixmap) (pMaskPixmap); + return; + } + } + pGC = GetScratchGC (pMaskPixmap->drawable.depth, pScreen); + ValidateGC (&pMaskPixmap->drawable, pGC); + rect.x = 0; + rect.y = 0; + rect.width = width; + rect.height = height; + (*pGC->ops->PolyFillRect) (&pMaskPixmap->drawable, pGC, 1, &rect); + FreeScratchGC (pGC); + x = -extents.x1; + y = -extents.y1; + } + else + { + x = 0; + y = 0; + } + buffer.count = 0; + buffer.mask = NULL; + while (nlist--) + { + x += list->xOff; + y += list->yOff; + n = list->len; + while (n--) + { + glyph = *glyphs++; + + if (glyph->info.width > 0 && glyph->info.height > 0) + { + /* pGlyph->info.{x,y} compensate for empty space in the glyph. */ + if (maskFormat) + { + if (exaBufferGlyph(pScreen, &buffer, glyph, NULL, pMask, + 0, 0, 0, 0, x - glyph->info.x, y - glyph->info.y) == ExaGlyphNeedFlush) + { + exaGlyphsToMask(pMask, &buffer); + exaBufferGlyph(pScreen, &buffer, glyph, NULL, pMask, + 0, 0, 0, 0, x - glyph->info.x, y - glyph->info.y); + } + } + else + { + if (exaBufferGlyph(pScreen, &buffer, glyph, pSrc, pDst, + xSrc + (x - glyph->info.x) - first_xOff, ySrc + (y - glyph->info.y) - first_yOff, + 0, 0, x - glyph->info.x, y - glyph->info.y) + == ExaGlyphNeedFlush) + { + exaGlyphsToDst(pSrc, pDst, &buffer); + exaBufferGlyph(pScreen, &buffer, glyph, pSrc, pDst, + xSrc + (x - glyph->info.x) - first_xOff, ySrc + (y - glyph->info.y) - first_yOff, + 0, 0, x - glyph->info.x, y - glyph->info.y); + } + } + } + + x += glyph->info.xOff; + y += glyph->info.yOff; + } + list++; + } + + if (buffer.count) { + if (maskFormat) + exaGlyphsToMask(pMask, &buffer); + else + exaGlyphsToDst(pSrc, pDst, &buffer); + } + + if (maskFormat) + { + x = extents.x1; + y = extents.y1; + CompositePicture (op, + pSrc, + pMask, + pDst, + xSrc + x - first_xOff, + ySrc + y - first_yOff, + 0, 0, + x, y, + width, height); + FreePicture ((pointer) pMask, (XID) 0); + (*pScreen->DestroyPixmap) (pMaskPixmap); + } +} diff --git a/exa/exa_migration_classic.c b/exa/exa_migration_classic.c new file mode 100644 index 0000000..6c49fb7 --- /dev/null +++ b/exa/exa_migration_classic.c @@ -0,0 +1,745 @@ +/* + * Copyright © 2006 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + * Authors: + * Eric Anholt <eric@anholt.net> + * Michel Dänzer <michel@tungstengraphics.com> + * + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <string.h> + +#include "exa_priv.h" +#include "exa.h" + +#if DEBUG_MIGRATE +#define DBG_MIGRATE(a) ErrorF a +#else +#define DBG_MIGRATE(a) +#endif + +/** + * The fallback path for UTS/DFS failing is to just memcpy. exaCopyDirtyToSys + * and exaCopyDirtyToFb both needed to do this loop. + */ +static void +exaMemcpyBox (PixmapPtr pPixmap, BoxPtr pbox, CARD8 *src, int src_pitch, + CARD8 *dst, int dst_pitch) + { + int i, cpp = pPixmap->drawable.bitsPerPixel / 8; + int bytes = (pbox->x2 - pbox->x1) * cpp; + + src += pbox->y1 * src_pitch + pbox->x1 * cpp; + dst += pbox->y1 * dst_pitch + pbox->x1 * cpp; + + for (i = pbox->y2 - pbox->y1; i; i--) { + memcpy (dst, src, bytes); + src += src_pitch; + dst += dst_pitch; + } +} + +/** + * Returns TRUE if the pixmap is dirty (has been modified in its current + * location compared to the other), or lacks a private for tracking + * dirtiness. + */ +static Bool +exaPixmapIsDirty (PixmapPtr pPix) +{ + ExaPixmapPriv (pPix); + + if (pExaPixmap == NULL) + EXA_FatalErrorDebugWithRet(("EXA bug: exaPixmapIsDirty was called on a non-exa pixmap.\n"), TRUE); + + if (!pExaPixmap->pDamage) + return FALSE; + + return RegionNotEmpty(DamageRegion(pExaPixmap->pDamage)) || + !RegionEqual(&pExaPixmap->validSys, &pExaPixmap->validFB); +} + +/** + * Returns TRUE if the pixmap is either pinned in FB, or has a sufficient score + * to be considered "should be in framebuffer". That's just anything that has + * had more acceleration than fallbacks, or has no score yet. + * + * Only valid if using a migration scheme that tracks score. + */ +static Bool +exaPixmapShouldBeInFB (PixmapPtr pPix) +{ + ExaPixmapPriv (pPix); + + if (exaPixmapIsPinned (pPix)) + return TRUE; + + return pExaPixmap->score >= 0; +} + +/** + * If the pixmap is currently dirty, this copies at least the dirty area from + * FB to system or vice versa. Both areas must be allocated. + */ +static void +exaCopyDirty(ExaMigrationPtr migrate, RegionPtr pValidDst, RegionPtr pValidSrc, + Bool (*transfer) (PixmapPtr pPix, int x, int y, int w, int h, + char *sys, int sys_pitch), int fallback_index, + void (*sync) (ScreenPtr pScreen)) +{ + PixmapPtr pPixmap = migrate->pPix; + ExaPixmapPriv (pPixmap); + RegionPtr damage = DamageRegion (pExaPixmap->pDamage); + RegionRec CopyReg; + Bool save_use_gpu_copy; + int save_pitch; + BoxPtr pBox; + int nbox; + Bool access_prepared = FALSE; + Bool need_sync = FALSE; + + /* Damaged bits are valid in current copy but invalid in other one */ + if (pExaPixmap->use_gpu_copy) { + RegionUnion(&pExaPixmap->validFB, &pExaPixmap->validFB, + damage); + RegionSubtract(&pExaPixmap->validSys, &pExaPixmap->validSys, + damage); + } else { + RegionUnion(&pExaPixmap->validSys, &pExaPixmap->validSys, + damage); + RegionSubtract(&pExaPixmap->validFB, &pExaPixmap->validFB, + damage); + } + + RegionEmpty(damage); + + /* Copy bits valid in source but not in destination */ + RegionNull(&CopyReg); + RegionSubtract(&CopyReg, pValidSrc, pValidDst); + + if (migrate->as_dst) { + ExaScreenPriv (pPixmap->drawable.pScreen); + + /* XXX: The pending damage region will be marked as damaged after the + * operation, so it should serve as an upper bound for the region that + * needs to be synchronized for the operation. Unfortunately, this + * causes corruption in some cases, e.g. when starting compiz. See + * https://bugs.freedesktop.org/show_bug.cgi?id=12916 . + */ + if (pExaScr->optimize_migration) { + RegionPtr pending_damage = DamagePendingRegion(pExaPixmap->pDamage); + +#if DEBUG_MIGRATE + if (RegionNil(pending_damage)) { + static Bool firsttime = TRUE; + + if (firsttime) { + ErrorF("%s: Pending damage region empty!\n", __func__); + firsttime = FALSE; + } + } +#endif + + /* Try to prevent destination valid region from growing too many + * rects by filling it up to the extents of the union of the + * destination valid region and the pending damage region. + */ + if (RegionNumRects(pValidDst) > 10) { + BoxRec box; + BoxPtr pValidExt, pDamageExt; + RegionRec closure; + + pValidExt = RegionExtents(pValidDst); + pDamageExt = RegionExtents(pending_damage); + + box.x1 = min(pValidExt->x1, pDamageExt->x1); + box.y1 = min(pValidExt->y1, pDamageExt->y1); + box.x2 = max(pValidExt->x2, pDamageExt->x2); + box.y2 = max(pValidExt->y2, pDamageExt->y2); + + RegionInit(&closure, &box, 0); + RegionIntersect(&CopyReg, &CopyReg, &closure); + } else + RegionIntersect(&CopyReg, &CopyReg, pending_damage); + } + + /* The caller may provide a region to be subtracted from the calculated + * dirty region. This is to avoid migration of bits that don't + * contribute to the result of the operation. + */ + if (migrate->pReg) + RegionSubtract(&CopyReg, &CopyReg, migrate->pReg); + } else { + /* The caller may restrict the region to be migrated for source pixmaps + * to what's relevant for the operation. + */ + if (migrate->pReg) + RegionIntersect(&CopyReg, &CopyReg, migrate->pReg); + } + + pBox = RegionRects(&CopyReg); + nbox = RegionNumRects(&CopyReg); + + save_use_gpu_copy = pExaPixmap->use_gpu_copy; + save_pitch = pPixmap->devKind; + pExaPixmap->use_gpu_copy = TRUE; + pPixmap->devKind = pExaPixmap->fb_pitch; + + while (nbox--) { + pBox->x1 = max(pBox->x1, 0); + pBox->y1 = max(pBox->y1, 0); + pBox->x2 = min(pBox->x2, pPixmap->drawable.width); + pBox->y2 = min(pBox->y2, pPixmap->drawable.height); + + if (pBox->x1 >= pBox->x2 || pBox->y1 >= pBox->y2) + continue; + + if (!transfer || !transfer (pPixmap, + pBox->x1, pBox->y1, + pBox->x2 - pBox->x1, + pBox->y2 - pBox->y1, + (char *) (pExaPixmap->sys_ptr + + pBox->y1 * pExaPixmap->sys_pitch + + pBox->x1 * pPixmap->drawable.bitsPerPixel / 8), + pExaPixmap->sys_pitch)) + { + if (!access_prepared) { + ExaDoPrepareAccess(pPixmap, fallback_index); + access_prepared = TRUE; + } + if (fallback_index == EXA_PREPARE_DEST) { + exaMemcpyBox (pPixmap, pBox, + pExaPixmap->sys_ptr, pExaPixmap->sys_pitch, + pPixmap->devPrivate.ptr, pPixmap->devKind); + } else { + exaMemcpyBox (pPixmap, pBox, + pPixmap->devPrivate.ptr, pPixmap->devKind, + pExaPixmap->sys_ptr, pExaPixmap->sys_pitch); + } + } else + need_sync = TRUE; + + pBox++; + } + + pExaPixmap->use_gpu_copy = save_use_gpu_copy; + pPixmap->devKind = save_pitch; + + /* Try to prevent source valid region from growing too many rects by + * removing parts of it which are also in the destination valid region. + * Removing anything beyond that would lead to data loss. + */ + if (RegionNumRects(pValidSrc) > 20) + RegionSubtract(pValidSrc, pValidSrc, pValidDst); + + /* The copied bits are now valid in destination */ + RegionUnion(pValidDst, pValidDst, &CopyReg); + + RegionUninit(&CopyReg); + + if (access_prepared) + exaFinishAccess(&pPixmap->drawable, fallback_index); + else if (need_sync && sync) + sync (pPixmap->drawable.pScreen); +} + +/** + * If the pixmap is currently dirty, this copies at least the dirty area from + * the framebuffer memory copy to the system memory copy. Both areas must be + * allocated. + */ +void +exaCopyDirtyToSys (ExaMigrationPtr migrate) +{ + PixmapPtr pPixmap = migrate->pPix; + ExaScreenPriv (pPixmap->drawable.pScreen); + ExaPixmapPriv (pPixmap); + + exaCopyDirty(migrate, &pExaPixmap->validSys, &pExaPixmap->validFB, + pExaScr->info->DownloadFromScreen, EXA_PREPARE_SRC, + exaWaitSync); +} + +/** + * If the pixmap is currently dirty, this copies at least the dirty area from + * the system memory copy to the framebuffer memory copy. Both areas must be + * allocated. + */ +void +exaCopyDirtyToFb (ExaMigrationPtr migrate) +{ + PixmapPtr pPixmap = migrate->pPix; + ExaScreenPriv (pPixmap->drawable.pScreen); + ExaPixmapPriv (pPixmap); + + exaCopyDirty(migrate, &pExaPixmap->validFB, &pExaPixmap->validSys, + pExaScr->info->UploadToScreen, EXA_PREPARE_DEST, NULL); +} + +/** + * Allocates a framebuffer copy of the pixmap if necessary, and then copies + * any necessary pixmap data into the framebuffer copy and points the pixmap at + * it. + * + * Note that when first allocated, a pixmap will have FALSE dirty flag. + * This is intentional because pixmap data starts out undefined. So if we move + * it in due to the first operation against it being accelerated, it will have + * undefined framebuffer contents that we didn't have to upload. If we do + * moveouts (and moveins) after the first movein, then we will only have to copy + * back and forth if the pixmap was written to after the last synchronization of + * the two copies. Then, at exaPixmapSave (when the framebuffer copy goes away) + * we mark the pixmap dirty, so that the next exaMoveInPixmap will actually move + * all the data, since it's almost surely all valid now. + */ +static void +exaDoMoveInPixmap (ExaMigrationPtr migrate) +{ + PixmapPtr pPixmap = migrate->pPix; + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPriv (pScreen); + ExaPixmapPriv (pPixmap); + + /* If we're VT-switched away, no touching card memory allowed. */ + if (pExaScr->swappedOut) + return; + + /* If we're not allowed to move, then fail. */ + if (exaPixmapIsPinned(pPixmap)) + return; + + /* Don't migrate in pixmaps which are less than 8bpp. This avoids a lot of + * fragility in EXA, and <8bpp is probably not used enough any more to care + * (at least, not in acceleratd paths). + */ + if (pPixmap->drawable.bitsPerPixel < 8) + return; + + if (pExaPixmap->accel_blocked) + return; + + if (pExaPixmap->area == NULL) { + pExaPixmap->area = + exaOffscreenAlloc (pScreen, pExaPixmap->fb_size, + pExaScr->info->pixmapOffsetAlign, FALSE, + exaPixmapSave, (pointer) pPixmap); + if (pExaPixmap->area == NULL) + return; + + pExaPixmap->fb_ptr = (CARD8 *) pExaScr->info->memoryBase + + pExaPixmap->area->offset; + } + + exaCopyDirtyToFb (migrate); + + if (exaPixmapHasGpuCopy(pPixmap)) + return; + + DBG_MIGRATE (("-> %p (0x%x) (%dx%d) (%c)\n", pPixmap, + (ExaGetPixmapPriv(pPixmap)->area ? + ExaGetPixmapPriv(pPixmap)->area->offset : 0), + pPixmap->drawable.width, + pPixmap->drawable.height, + exaPixmapIsDirty(pPixmap) ? 'd' : 'c')); + + pExaPixmap->use_gpu_copy = TRUE; + + pPixmap->devKind = pExaPixmap->fb_pitch; + pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER; +} + +void +exaMoveInPixmap_classic (PixmapPtr pPixmap) +{ + static ExaMigrationRec migrate = { .as_dst = FALSE, .as_src = TRUE, + .pReg = NULL }; + + migrate.pPix = pPixmap; + exaDoMoveInPixmap (&migrate); +} + +/** + * Switches the current active location of the pixmap to system memory, copying + * updated data out if necessary. + */ +static void +exaDoMoveOutPixmap (ExaMigrationPtr migrate) +{ + PixmapPtr pPixmap = migrate->pPix; + ExaPixmapPriv (pPixmap); + + if (!pExaPixmap->area || exaPixmapIsPinned(pPixmap)) + return; + + exaCopyDirtyToSys (migrate); + + if (exaPixmapHasGpuCopy(pPixmap)) { + + DBG_MIGRATE (("<- %p (%p) (%dx%d) (%c)\n", pPixmap, + (void*)(ExaGetPixmapPriv(pPixmap)->area ? + ExaGetPixmapPriv(pPixmap)->area->offset : 0), + pPixmap->drawable.width, + pPixmap->drawable.height, + exaPixmapIsDirty(pPixmap) ? 'd' : 'c')); + + pExaPixmap->use_gpu_copy = FALSE; + + pPixmap->devKind = pExaPixmap->sys_pitch; + pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER; + } +} + +void +exaMoveOutPixmap_classic (PixmapPtr pPixmap) +{ + static ExaMigrationRec migrate = { .as_dst = FALSE, .as_src = TRUE, + .pReg = NULL }; + + migrate.pPix = pPixmap; + exaDoMoveOutPixmap (&migrate); +} + + +/** + * Copies out important pixmap data and removes references to framebuffer area. + * Called when the memory manager decides it's time to kick the pixmap out of + * framebuffer entirely. + */ +void +exaPixmapSave (ScreenPtr pScreen, ExaOffscreenArea *area) +{ + PixmapPtr pPixmap = area->privData; + ExaPixmapPriv(pPixmap); + + exaMoveOutPixmap(pPixmap); + + pExaPixmap->fb_ptr = NULL; + pExaPixmap->area = NULL; + + /* Mark all FB bits as invalid, so all valid system bits get copied to FB + * next time */ + RegionEmpty(&pExaPixmap->validFB); +} + +/** + * For the "greedy" migration scheme, pushes the pixmap toward being located in + * framebuffer memory. + */ +static void +exaMigrateTowardFb (ExaMigrationPtr migrate) +{ + PixmapPtr pPixmap = migrate->pPix; + ExaPixmapPriv (pPixmap); + + if (pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED) { + DBG_MIGRATE(("UseScreen: not migrating pinned pixmap %p\n", + (pointer)pPixmap)); + return; + } + + DBG_MIGRATE(("UseScreen %p score %d\n", + (pointer)pPixmap, pExaPixmap->score)); + + if (pExaPixmap->score == EXA_PIXMAP_SCORE_INIT) { + exaDoMoveInPixmap(migrate); + pExaPixmap->score = 0; + } + + if (pExaPixmap->score < EXA_PIXMAP_SCORE_MAX) + pExaPixmap->score++; + + if (pExaPixmap->score >= EXA_PIXMAP_SCORE_MOVE_IN && + !exaPixmapHasGpuCopy(pPixmap)) + { + exaDoMoveInPixmap(migrate); + } + + if (exaPixmapHasGpuCopy(pPixmap)) { + exaCopyDirtyToFb (migrate); + ExaOffscreenMarkUsed (pPixmap); + } else + exaCopyDirtyToSys (migrate); +} + +/** + * For the "greedy" migration scheme, pushes the pixmap toward being located in + * system memory. + */ +static void +exaMigrateTowardSys (ExaMigrationPtr migrate) +{ + PixmapPtr pPixmap = migrate->pPix; + ExaPixmapPriv (pPixmap); + + DBG_MIGRATE(("UseMem: %p score %d\n", (pointer)pPixmap, pExaPixmap->score)); + + if (pExaPixmap->score == EXA_PIXMAP_SCORE_PINNED) + return; + + if (pExaPixmap->score == EXA_PIXMAP_SCORE_INIT) + pExaPixmap->score = 0; + + if (pExaPixmap->score > EXA_PIXMAP_SCORE_MIN) + pExaPixmap->score--; + + if (pExaPixmap->score <= EXA_PIXMAP_SCORE_MOVE_OUT && pExaPixmap->area) + exaDoMoveOutPixmap(migrate); + + if (exaPixmapHasGpuCopy(pPixmap)) { + exaCopyDirtyToFb (migrate); + ExaOffscreenMarkUsed (pPixmap); + } else + exaCopyDirtyToSys (migrate); +} + +/** + * If the pixmap has both a framebuffer and system memory copy, this function + * asserts that both of them are the same. + */ +static Bool +exaAssertNotDirty (PixmapPtr pPixmap) +{ + ExaPixmapPriv (pPixmap); + CARD8 *dst, *src; + RegionRec ValidReg; + int dst_pitch, src_pitch, cpp, y, nbox, save_pitch; + BoxPtr pBox; + Bool ret = TRUE, save_use_gpu_copy; + + if (exaPixmapIsPinned(pPixmap) || pExaPixmap->area == NULL) + return ret; + + RegionNull(&ValidReg); + RegionIntersect(&ValidReg, &pExaPixmap->validFB, + &pExaPixmap->validSys); + nbox = RegionNumRects(&ValidReg); + + if (!nbox) + goto out; + + pBox = RegionRects(&ValidReg); + + dst_pitch = pExaPixmap->sys_pitch; + src_pitch = pExaPixmap->fb_pitch; + cpp = pPixmap->drawable.bitsPerPixel / 8; + + save_use_gpu_copy = pExaPixmap->use_gpu_copy; + save_pitch = pPixmap->devKind; + pExaPixmap->use_gpu_copy = TRUE; + pPixmap->devKind = pExaPixmap->fb_pitch; + + if (!ExaDoPrepareAccess(pPixmap, EXA_PREPARE_SRC)) + goto skip; + + while (nbox--) { + int rowbytes; + + pBox->x1 = max(pBox->x1, 0); + pBox->y1 = max(pBox->y1, 0); + pBox->x2 = min(pBox->x2, pPixmap->drawable.width); + pBox->y2 = min(pBox->y2, pPixmap->drawable.height); + + if (pBox->x1 >= pBox->x2 || pBox->y1 >= pBox->y2) + continue; + + rowbytes = (pBox->x2 - pBox->x1) * cpp; + src = (CARD8 *) pPixmap->devPrivate.ptr + pBox->y1 * src_pitch + pBox->x1 * cpp; + dst = pExaPixmap->sys_ptr + pBox->y1 * dst_pitch + pBox->x1 * cpp; + + for (y = pBox->y1; y < pBox->y2; + y++, src += src_pitch, dst += dst_pitch) { + if (memcmp(dst, src, rowbytes) != 0) { + ret = FALSE; + exaPixmapDirty(pPixmap, pBox->x1, pBox->y1, pBox->x2, + pBox->y2); + break; + } + } + } + +skip: + exaFinishAccess(&pPixmap->drawable, EXA_PREPARE_SRC); + + pExaPixmap->use_gpu_copy = save_use_gpu_copy; + pPixmap->devKind = save_pitch; + +out: + RegionUninit(&ValidReg); + return ret; +} + +/** + * Performs migration of the pixmaps according to the operation information + * provided in pixmaps and can_accel and the migration scheme chosen in the + * config file. + */ +void +exaDoMigration_classic (ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel) +{ + ScreenPtr pScreen = pixmaps[0].pPix->drawable.pScreen; + ExaScreenPriv(pScreen); + int i, j; + + /* If this debugging flag is set, check each pixmap for whether it is marked + * as clean, and if so, actually check if that's the case. This should help + * catch issues with failing to mark a drawable as dirty. While it will + * catch them late (after the operation happened), it at least explains what + * went wrong, and instrumenting the code to find what operation happened + * to the pixmap last shouldn't be hard. + */ + if (pExaScr->checkDirtyCorrectness) { + for (i = 0; i < npixmaps; i++) { + if (!exaPixmapIsDirty (pixmaps[i].pPix) && + !exaAssertNotDirty (pixmaps[i].pPix)) + ErrorF("%s: Pixmap %d dirty but not marked as such!\n", __func__, i); + } + } + /* If anything is pinned in system memory, we won't be able to + * accelerate. + */ + for (i = 0; i < npixmaps; i++) { + if (exaPixmapIsPinned (pixmaps[i].pPix) && + !exaPixmapHasGpuCopy (pixmaps[i].pPix)) + { + EXA_FALLBACK(("Pixmap %p (%dx%d) pinned in sys\n", pixmaps[i].pPix, + pixmaps[i].pPix->drawable.width, + pixmaps[i].pPix->drawable.height)); + can_accel = FALSE; + break; + } + } + + if (pExaScr->migration == ExaMigrationSmart) { + /* If we've got something as a destination that we shouldn't cause to + * become newly dirtied, take the unaccelerated route. + */ + for (i = 0; i < npixmaps; i++) { + if (pixmaps[i].as_dst && !exaPixmapShouldBeInFB (pixmaps[i].pPix) && + !exaPixmapIsDirty (pixmaps[i].pPix)) + { + for (i = 0; i < npixmaps; i++) { + if (!exaPixmapIsDirty (pixmaps[i].pPix)) + exaDoMoveOutPixmap (pixmaps + i); + } + return; + } + } + + /* If we aren't going to accelerate, then we migrate everybody toward + * system memory, and kick out if it's free. + */ + if (!can_accel) { + for (i = 0; i < npixmaps; i++) { + exaMigrateTowardSys (pixmaps + i); + if (!exaPixmapIsDirty (pixmaps[i].pPix)) + exaDoMoveOutPixmap (pixmaps + i); + } + return; + } + + /* Finally, the acceleration path. Move them all in. */ + for (i = 0; i < npixmaps; i++) { + exaMigrateTowardFb(pixmaps + i); + exaDoMoveInPixmap(pixmaps + i); + } + } else if (pExaScr->migration == ExaMigrationGreedy) { + /* If we can't accelerate, either because the driver can't or because one of + * the pixmaps is pinned in system memory, then we migrate everybody toward + * system memory. + * + * We also migrate toward system if all pixmaps involved are currently in + * system memory -- this can mitigate thrashing when there are significantly + * more pixmaps active than would fit in memory. + * + * If not, then we migrate toward FB so that hopefully acceleration can + * happen. + */ + if (!can_accel) { + for (i = 0; i < npixmaps; i++) + exaMigrateTowardSys (pixmaps + i); + return; + } + + for (i = 0; i < npixmaps; i++) { + if (exaPixmapHasGpuCopy(pixmaps[i].pPix)) { + /* Found one in FB, so move all to FB. */ + for (j = 0; j < npixmaps; j++) + exaMigrateTowardFb(pixmaps + i); + return; + } + } + + /* Nobody's in FB, so move all away from FB. */ + for (i = 0; i < npixmaps; i++) + exaMigrateTowardSys(pixmaps + i); + } else if (pExaScr->migration == ExaMigrationAlways) { + /* Always move the pixmaps out if we can't accelerate. If we can + * accelerate, try to move them all in. If that fails, then move them + * back out. + */ + if (!can_accel) { + for (i = 0; i < npixmaps; i++) + exaDoMoveOutPixmap(pixmaps + i); + return; + } + + /* Now, try to move them all into FB */ + for (i = 0; i < npixmaps; i++) { + exaDoMoveInPixmap(pixmaps + i); + } + + /* If we couldn't fit everything in, abort */ + for (i = 0; i < npixmaps; i++) { + if (!exaPixmapHasGpuCopy(pixmaps[i].pPix)) { + return; + } + } + + /* Yay, everything has a gpu copy, mark memory as used */ + for (i = 0; i < npixmaps; i++) { + ExaOffscreenMarkUsed (pixmaps[i].pPix); + } + } +} + +void +exaPrepareAccessReg_classic(PixmapPtr pPixmap, int index, RegionPtr pReg) +{ + ExaMigrationRec pixmaps[1]; + + if (index == EXA_PREPARE_DEST || index == EXA_PREPARE_AUX_DEST) { + pixmaps[0].as_dst = TRUE; + pixmaps[0].as_src = FALSE; + } else { + pixmaps[0].as_dst = FALSE; + pixmaps[0].as_src = TRUE; + } + pixmaps[0].pPix = pPixmap; + pixmaps[0].pReg = pReg; + + exaDoMigration(pixmaps, 1, FALSE); + + (void)ExaDoPrepareAccess(pPixmap, index); +} diff --git a/exa/exa_migration_mixed.c b/exa/exa_migration_mixed.c new file mode 100644 index 0000000..fb47151 --- /dev/null +++ b/exa/exa_migration_mixed.c @@ -0,0 +1,261 @@ +/* + * Copyright © 2009 Maarten Maathuis + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <string.h> + +#include "exa_priv.h" +#include "exa.h" + +void +exaCreateDriverPixmap_mixed(PixmapPtr pPixmap) +{ + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPriv(pScreen); + ExaPixmapPriv(pPixmap); + int w = pPixmap->drawable.width, h = pPixmap->drawable.height; + int depth = pPixmap->drawable.depth, bpp = pPixmap->drawable.bitsPerPixel; + int usage_hint = pPixmap->usage_hint; + int paddedWidth = pExaPixmap->sys_pitch; + + /* Already done. */ + if (pExaPixmap->driverPriv) + return; + + if (exaPixmapIsPinned(pPixmap)) + return; + + /* Can't accel 1/4 bpp. */ + if (pExaPixmap->accel_blocked || bpp < 8) + return; + + if (pExaScr->info->CreatePixmap2) { + int new_pitch = 0; + pExaPixmap->driverPriv = pExaScr->info->CreatePixmap2(pScreen, w, h, depth, usage_hint, bpp, &new_pitch); + paddedWidth = pExaPixmap->fb_pitch = new_pitch; + } else { + if (paddedWidth < pExaPixmap->fb_pitch) + paddedWidth = pExaPixmap->fb_pitch; + pExaPixmap->driverPriv = pExaScr->info->CreatePixmap(pScreen, paddedWidth*h, 0); + } + + if (!pExaPixmap->driverPriv) + return; + + (*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0, + paddedWidth, NULL); +} + +void +exaDoMigration_mixed(ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel) +{ + int i; + + /* If anything is pinned in system memory, we won't be able to + * accelerate. + */ + for (i = 0; i < npixmaps; i++) { + if (exaPixmapIsPinned (pixmaps[i].pPix) && + !exaPixmapHasGpuCopy (pixmaps[i].pPix)) + { + can_accel = FALSE; + break; + } + } + + /* We can do nothing. */ + if (!can_accel) + return; + + for (i = 0; i < npixmaps; i++) { + PixmapPtr pPixmap = pixmaps[i].pPix; + ExaPixmapPriv(pPixmap); + + if (!pExaPixmap->driverPriv) + exaCreateDriverPixmap_mixed(pPixmap); + + if (pExaPixmap->pDamage && exaPixmapHasGpuCopy(pPixmap)) { + ExaScreenPriv(pPixmap->drawable.pScreen); + + /* This pitch is needed for proper acceleration. For some reason + * there are pixmaps without pDamage and a bad fb_pitch value. + * So setting devKind when only exaPixmapHasGpuCopy() is true + * causes corruption. Pixmaps without pDamage are not migrated + * and should have a valid devKind at all times, so that's why this + * isn't causing problems. Pixmaps have their gpu pitch set the + * first time in the MPH call from exaCreateDriverPixmap_mixed(). + */ + pPixmap->devKind = pExaPixmap->fb_pitch; + exaCopyDirtyToFb(pixmaps + i); + + if (pExaScr->deferred_mixed_pixmap == pPixmap && + !pixmaps[i].as_dst && !pixmaps[i].pReg) + pExaScr->deferred_mixed_pixmap = NULL; + } + + pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap); + } +} + +void +exaMoveInPixmap_mixed(PixmapPtr pPixmap) +{ + ExaMigrationRec pixmaps[1]; + + pixmaps[0].as_dst = FALSE; + pixmaps[0].as_src = TRUE; + pixmaps[0].pPix = pPixmap; + pixmaps[0].pReg = NULL; + + exaDoMigration(pixmaps, 1, TRUE); +} + +void +exaDamageReport_mixed(DamagePtr pDamage, RegionPtr pRegion, void *closure) +{ + PixmapPtr pPixmap = closure; + ExaPixmapPriv(pPixmap); + + /* Move back results of software rendering on system memory copy of mixed driver + * pixmap (see exaPrepareAccessReg_mixed). + * + * Defer moving the destination back into the driver pixmap, to try and save + * overhead on multiple subsequent software fallbacks. + */ + if (!pExaPixmap->use_gpu_copy && exaPixmapHasGpuCopy(pPixmap)) { + ExaScreenPriv(pPixmap->drawable.pScreen); + + if (pExaScr->deferred_mixed_pixmap && + pExaScr->deferred_mixed_pixmap != pPixmap) + exaMoveInPixmap_mixed(pExaScr->deferred_mixed_pixmap); + pExaScr->deferred_mixed_pixmap = pPixmap; + } +} + +/* With mixed pixmaps, if we fail to get direct access to the driver pixmap, we + * use the DownloadFromScreen hook to retrieve contents to a copy in system + * memory, perform software rendering on that and move back the results with the + * UploadToScreen hook (see exaDamageReport_mixed). + */ +void +exaPrepareAccessReg_mixed(PixmapPtr pPixmap, int index, RegionPtr pReg) +{ + ExaPixmapPriv(pPixmap); + Bool has_gpu_copy = exaPixmapHasGpuCopy(pPixmap); + Bool success; + + success = ExaDoPrepareAccess(pPixmap, index); + + if (success && has_gpu_copy && pExaPixmap->pDamage) { + /* You cannot do accelerated operations while a buffer is mapped. */ + exaFinishAccess(&pPixmap->drawable, index); + /* Update the gpu view of both deferred destination pixmaps and of + * source pixmaps that were migrated with a bounding region. + */ + exaMoveInPixmap_mixed(pPixmap); + success = ExaDoPrepareAccess(pPixmap, index); + + if (success) { + /* We have a gpu pixmap that can be accessed, we don't need the cpu + * copy anymore. Drivers that prefer DFS, should fail prepare + * access. + */ + DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage); + DamageDestroy(pExaPixmap->pDamage); + pExaPixmap->pDamage = NULL; + + free(pExaPixmap->sys_ptr); + pExaPixmap->sys_ptr = NULL; + + return; + } + } + + if (!success) { + ExaMigrationRec pixmaps[1]; + + /* Do we need to allocate our system buffer? */ + if (!pExaPixmap->sys_ptr) { + pExaPixmap->sys_ptr = malloc(pExaPixmap->sys_pitch * + pPixmap->drawable.height); + if (!pExaPixmap->sys_ptr) + FatalError("EXA: malloc failed for size %d bytes\n", + pExaPixmap->sys_pitch * pPixmap->drawable.height); + } + + if (index == EXA_PREPARE_DEST || index == EXA_PREPARE_AUX_DEST) { + pixmaps[0].as_dst = TRUE; + pixmaps[0].as_src = FALSE; + } else { + pixmaps[0].as_dst = FALSE; + pixmaps[0].as_src = TRUE; + } + pixmaps[0].pPix = pPixmap; + pixmaps[0].pReg = pReg; + + if (!pExaPixmap->pDamage && + (has_gpu_copy || !exaPixmapIsPinned(pPixmap))) { + Bool as_dst = pixmaps[0].as_dst; + + /* Set up damage tracking */ + pExaPixmap->pDamage = DamageCreate(exaDamageReport_mixed, NULL, + DamageReportNonEmpty, TRUE, + pPixmap->drawable.pScreen, + pPixmap); + + DamageRegister(&pPixmap->drawable, pExaPixmap->pDamage); + /* This ensures that pending damage reflects the current operation. */ + /* This is used by exa to optimize migration. */ + DamageSetReportAfterOp(pExaPixmap->pDamage, TRUE); + + if (has_gpu_copy) { + exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width, + pPixmap->drawable.height); + + /* We don't know which region of the destination will be damaged, + * have to assume all of it + */ + if (as_dst) { + pixmaps[0].as_dst = FALSE; + pixmaps[0].as_src = TRUE; + pixmaps[0].pReg = NULL; + } + exaCopyDirtyToSys(pixmaps); + } + + if (as_dst) + exaPixmapDirty(pPixmap, 0, 0, pPixmap->drawable.width, + pPixmap->drawable.height); + } else if (has_gpu_copy) + exaCopyDirtyToSys(pixmaps); + + pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr; + pPixmap->devKind = pExaPixmap->sys_pitch; + pExaPixmap->use_gpu_copy = FALSE; + } +} + diff --git a/exa/exa_mixed.c b/exa/exa_mixed.c new file mode 100644 index 0000000..fd1afb2 --- /dev/null +++ b/exa/exa_mixed.c @@ -0,0 +1,290 @@ +/* + * Copyright © 2009 Maarten Maathuis + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + * + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <string.h> + +#include "exa_priv.h" +#include "exa.h" + +/* This file holds the driver allocated pixmaps + better initial placement code. + */ + +static _X_INLINE void* +ExaGetPixmapAddress(PixmapPtr p) +{ + ExaPixmapPriv(p); + + return pExaPixmap->sys_ptr; +} + +/** + * exaCreatePixmap() creates a new pixmap. + */ +PixmapPtr +exaCreatePixmap_mixed(ScreenPtr pScreen, int w, int h, int depth, + unsigned usage_hint) +{ + PixmapPtr pPixmap; + ExaPixmapPrivPtr pExaPixmap; + int bpp; + size_t paddedWidth; + ExaScreenPriv(pScreen); + + if (w > 32767 || h > 32767) + return NullPixmap; + + swap(pExaScr, pScreen, CreatePixmap); + pPixmap = pScreen->CreatePixmap(pScreen, 0, 0, depth, usage_hint); + swap(pExaScr, pScreen, CreatePixmap); + + if (!pPixmap) + return NULL; + + pExaPixmap = ExaGetPixmapPriv(pPixmap); + pExaPixmap->driverPriv = NULL; + + bpp = pPixmap->drawable.bitsPerPixel; + + paddedWidth = ((w * bpp + FB_MASK) >> FB_SHIFT) * sizeof(FbBits); + if (paddedWidth / 4 > 32767 || h > 32767) + return NullPixmap; + + /* We will allocate the system pixmap later if needed. */ + pPixmap->devPrivate.ptr = NULL; + pExaPixmap->sys_ptr = NULL; + pExaPixmap->sys_pitch = paddedWidth; + + pExaPixmap->area = NULL; + pExaPixmap->fb_ptr = NULL; + pExaPixmap->pDamage = NULL; + + exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp); + exaSetAccelBlock(pExaScr, pExaPixmap, + w, h, bpp); + + (*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0, + paddedWidth, NULL); + + /* A scratch pixmap will become a driver pixmap right away. */ + if (!w || !h) { + exaCreateDriverPixmap_mixed(pPixmap); + pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap); + } else { + pExaPixmap->use_gpu_copy = FALSE; + + if (w == 1 && h == 1) { + pExaPixmap->sys_ptr = malloc(paddedWidth); + + /* Set up damage tracking */ + pExaPixmap->pDamage = DamageCreate(exaDamageReport_mixed, NULL, + DamageReportNonEmpty, TRUE, + pPixmap->drawable.pScreen, + pPixmap); + + DamageRegister(&pPixmap->drawable, pExaPixmap->pDamage); + /* This ensures that pending damage reflects the current operation. */ + /* This is used by exa to optimize migration. */ + DamageSetReportAfterOp(pExaPixmap->pDamage, TRUE); + } + } + + /* During a fallback we must prepare access. */ + if (pExaScr->fallback_counter) + exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_AUX_DEST); + + return pPixmap; +} + +Bool +exaModifyPixmapHeader_mixed(PixmapPtr pPixmap, int width, int height, int depth, + int bitsPerPixel, int devKind, pointer pPixData) +{ + ScreenPtr pScreen; + ExaScreenPrivPtr pExaScr; + ExaPixmapPrivPtr pExaPixmap; + Bool ret, has_gpu_copy; + + if (!pPixmap) + return FALSE; + + pScreen = pPixmap->drawable.pScreen; + pExaScr = ExaGetScreenPriv(pScreen); + pExaPixmap = ExaGetPixmapPriv(pPixmap); + + if (pPixData) { + if (pExaPixmap->driverPriv) { + if (pExaPixmap->pDamage) { + DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage); + DamageDestroy(pExaPixmap->pDamage); + pExaPixmap->pDamage = NULL; + } + + pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv); + pExaPixmap->driverPriv = NULL; + } + + pExaPixmap->use_gpu_copy = FALSE; + pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED; + } + + has_gpu_copy = exaPixmapHasGpuCopy(pPixmap); + + if (width <= 0) + width = pPixmap->drawable.width; + + if (height <= 0) + height = pPixmap->drawable.height; + + if (bitsPerPixel <= 0) { + if (depth <= 0) + bitsPerPixel = pPixmap->drawable.bitsPerPixel; + else + bitsPerPixel = BitsPerPixel(depth); + } + + if (depth <= 0) + depth = pPixmap->drawable.depth; + + if (width != pPixmap->drawable.width || + height != pPixmap->drawable.height || + depth != pPixmap->drawable.depth || + bitsPerPixel != pPixmap->drawable.bitsPerPixel) { + if (pExaPixmap->driverPriv) { + if (devKind > 0) + pExaPixmap->fb_pitch = devKind; + else + exaSetFbPitch(pExaScr, pExaPixmap, width, height, bitsPerPixel); + + exaSetAccelBlock(pExaScr, pExaPixmap, + width, height, bitsPerPixel); + RegionEmpty(&pExaPixmap->validFB); + } + + /* Need to re-create system copy if there's also a GPU copy */ + if (has_gpu_copy && pExaPixmap->sys_ptr) { + free(pExaPixmap->sys_ptr); + pExaPixmap->sys_ptr = NULL; + pExaPixmap->sys_pitch = PixmapBytePad(width, depth); + DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage); + DamageDestroy(pExaPixmap->pDamage); + pExaPixmap->pDamage = NULL; + RegionEmpty(&pExaPixmap->validSys); + + if (pExaScr->deferred_mixed_pixmap == pPixmap) + pExaScr->deferred_mixed_pixmap = NULL; + } + } + + if (has_gpu_copy) { + pPixmap->devPrivate.ptr = pExaPixmap->fb_ptr; + pPixmap->devKind = pExaPixmap->fb_pitch; + } else { + pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr; + pPixmap->devKind = pExaPixmap->sys_pitch; + } + + /* Only pass driver pixmaps to the driver. */ + if (pExaScr->info->ModifyPixmapHeader && pExaPixmap->driverPriv) { + ret = pExaScr->info->ModifyPixmapHeader(pPixmap, width, height, depth, + bitsPerPixel, devKind, pPixData); + if (ret == TRUE) + goto out; + } + + swap(pExaScr, pScreen, ModifyPixmapHeader); + ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth, + bitsPerPixel, devKind, pPixData); + swap(pExaScr, pScreen, ModifyPixmapHeader); + +out: + if (has_gpu_copy) { + pExaPixmap->fb_ptr = pPixmap->devPrivate.ptr; + pExaPixmap->fb_pitch = pPixmap->devKind; + } else { + pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr; + pExaPixmap->sys_pitch = pPixmap->devKind; + } + /* Always NULL this, we don't want lingering pointers. */ + pPixmap->devPrivate.ptr = NULL; + + return ret; +} + +Bool +exaDestroyPixmap_mixed(PixmapPtr pPixmap) +{ + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPriv(pScreen); + Bool ret; + + if (pPixmap->refcnt == 1) + { + ExaPixmapPriv (pPixmap); + + exaDestroyPixmap(pPixmap); + + if (pExaScr->deferred_mixed_pixmap == pPixmap) + pExaScr->deferred_mixed_pixmap = NULL; + + if (pExaPixmap->driverPriv) + pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv); + pExaPixmap->driverPriv = NULL; + + if (pExaPixmap->pDamage) { + free(pExaPixmap->sys_ptr); + pExaPixmap->sys_ptr = NULL; + pExaPixmap->pDamage = NULL; + } + } + + swap(pExaScr, pScreen, DestroyPixmap); + ret = pScreen->DestroyPixmap (pPixmap); + swap(pExaScr, pScreen, DestroyPixmap); + + return ret; +} + +Bool +exaPixmapHasGpuCopy_mixed(PixmapPtr pPixmap) +{ + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPriv(pScreen); + ExaPixmapPriv(pPixmap); + pointer saved_ptr; + Bool ret; + + if (!pExaPixmap->driverPriv) + return FALSE; + + saved_ptr = pPixmap->devPrivate.ptr; + pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap); + ret = pExaScr->info->PixmapIsOffscreen(pPixmap); + pPixmap->devPrivate.ptr = saved_ptr; + + return ret; +} diff --git a/exa/exa_offscreen.c b/exa/exa_offscreen.c new file mode 100644 index 0000000..5abe3b8 --- /dev/null +++ b/exa/exa_offscreen.c @@ -0,0 +1,696 @@ +/* + * Copyright © 2003 Anders Carlsson + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Anders Carlsson not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Anders Carlsson makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * ANDERS CARLSSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL ANDERS CARLSSON BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +/** @file + * This allocator allocates blocks of memory by maintaining a list of areas. + * When allocating, the contiguous block of areas with the minimum eviction + * cost is found and evicted in order to make room for the new allocation. + */ + +#include "exa_priv.h" + +#include <limits.h> +#include <assert.h> +#include <stdlib.h> + +#if DEBUG_OFFSCREEN +#define DBG_OFFSCREEN(a) ErrorF a +#else +#define DBG_OFFSCREEN(a) +#endif + +#if DEBUG_OFFSCREEN +static void +ExaOffscreenValidate (ScreenPtr pScreen) +{ + ExaScreenPriv (pScreen); + ExaOffscreenArea *prev = 0, *area; + + assert (pExaScr->info->offScreenAreas->base_offset == + pExaScr->info->offScreenBase); + for (area = pExaScr->info->offScreenAreas; area; area = area->next) + { + assert (area->offset >= area->base_offset && + area->offset < (area->base_offset + area->size)); + if (prev) + assert (prev->base_offset + prev->size == area->base_offset); + prev = area; + } + assert (prev->base_offset + prev->size == pExaScr->info->memorySize); +} +#else +#define ExaOffscreenValidate(s) +#endif + +static ExaOffscreenArea * +ExaOffscreenKickOut (ScreenPtr pScreen, ExaOffscreenArea *area) +{ + if (area->save) + (*area->save) (pScreen, area); + return exaOffscreenFree (pScreen, area); +} + +static void +exaUpdateEvictionCost(ExaOffscreenArea *area, unsigned offScreenCounter) +{ + unsigned age; + + if (area->state == ExaOffscreenAvail) + return; + + age = offScreenCounter - area->last_use; + + /* This is unlikely to happen, but could result in a division by zero... */ + if (age > (UINT_MAX / 2)) { + age = UINT_MAX / 2; + area->last_use = offScreenCounter - age; + } + + area->eviction_cost = area->size / age; +} + +static ExaOffscreenArea * +exaFindAreaToEvict(ExaScreenPrivPtr pExaScr, int size, int align) +{ + ExaOffscreenArea *begin, *end, *best; + unsigned cost, best_cost; + int avail, real_size; + + best_cost = UINT_MAX; + begin = end = pExaScr->info->offScreenAreas; + avail = 0; + cost = 0; + best = 0; + + while (end != NULL) + { + restart: + while (begin != NULL && begin->state == ExaOffscreenLocked) + begin = end = begin->next; + + if (begin == NULL) + break; + + /* adjust size needed to account for alignment loss for this area */ + real_size = size + (begin->base_offset + begin->size - size) % align; + + while (avail < real_size && end != NULL) + { + if (end->state == ExaOffscreenLocked) { + /* Can't more room here, restart after this locked area */ + avail = 0; + cost = 0; + begin = end; + goto restart; + } + avail += end->size; + exaUpdateEvictionCost(end, pExaScr->offScreenCounter); + cost += end->eviction_cost; + end = end->next; + } + + /* Check the cost, update best */ + if (avail >= real_size && cost < best_cost) { + best = begin; + best_cost = cost; + } + + avail -= begin->size; + cost -= begin->eviction_cost; + begin = begin->next; + } + + return best; +} + +/** + * exaOffscreenAlloc allocates offscreen memory + * + * @param pScreen current screen + * @param size size in bytes of the allocation + * @param align byte alignment requirement for the offset of the allocated area + * @param locked whether the allocated area is locked and can't be kicked out + * @param save callback for when the area is evicted from memory + * @param privdata private data for the save callback. + * + * Allocates offscreen memory from the device associated with pScreen. size + * and align deteremine where and how large the allocated area is, and locked + * will mark whether it should be held in card memory. privdata may be any + * pointer for the save callback when the area is removed. + * + * Note that locked areas do get evicted on VT switch unless the driver + * requested version 2.1 or newer behavior. In that case, the save callback is + * still called. + */ +ExaOffscreenArea * +exaOffscreenAlloc (ScreenPtr pScreen, int size, int align, + Bool locked, + ExaOffscreenSaveProc save, + pointer privData) +{ + ExaOffscreenArea *area; + ExaScreenPriv (pScreen); + int real_size = 0, largest_avail = 0; +#if DEBUG_OFFSCREEN + static int number = 0; + ErrorF("================= ============ allocating a new pixmap %d\n", ++number); +#endif + + ExaOffscreenValidate (pScreen); + if (!align) + align = 1; + + if (!size) + { + DBG_OFFSCREEN (("Alloc 0x%x -> EMPTY\n", size)); + return NULL; + } + + /* throw out requests that cannot fit */ + if (size > (pExaScr->info->memorySize - pExaScr->info->offScreenBase)) + { + DBG_OFFSCREEN (("Alloc 0x%x vs (0x%lx) -> TOBIG\n", size, + pExaScr->info->memorySize - + pExaScr->info->offScreenBase)); + return NULL; + } + + /* Try to find a free space that'll fit. */ + for (area = pExaScr->info->offScreenAreas; area; area = area->next) + { + /* skip allocated areas */ + if (area->state != ExaOffscreenAvail) + continue; + + /* adjust size to match alignment requirement */ + real_size = size + (area->base_offset + area->size - size) % align; + + /* does it fit? */ + if (real_size <= area->size) + break; + + if (area->size > largest_avail) + largest_avail = area->size; + } + + if (!area) + { + area = exaFindAreaToEvict(pExaScr, size, align); + + if (!area) + { + DBG_OFFSCREEN (("Alloc 0x%x -> NOSPACE\n", size)); + /* Could not allocate memory */ + ExaOffscreenValidate (pScreen); + return NULL; + } + + /* adjust size needed to account for alignment loss for this area */ + real_size = size + (area->base_offset + area->size - size) % align; + + /* + * Kick out first area if in use + */ + if (area->state != ExaOffscreenAvail) + area = ExaOffscreenKickOut (pScreen, area); + /* + * Now get the system to merge the other needed areas together + */ + while (area->size < real_size) + { + assert (area->next && area->next->state == ExaOffscreenRemovable); + (void) ExaOffscreenKickOut (pScreen, area->next); + } + } + + /* save extra space in new area */ + if (real_size < area->size) + { + ExaOffscreenArea *new_area = malloc(sizeof (ExaOffscreenArea)); + if (!new_area) + return NULL; + new_area->base_offset = area->base_offset; + + new_area->offset = new_area->base_offset; + new_area->align = 0; + new_area->size = area->size - real_size; + new_area->state = ExaOffscreenAvail; + new_area->save = NULL; + new_area->last_use = 0; + new_area->eviction_cost = 0; + new_area->next = area; + new_area->prev = area->prev; + if (area->prev->next) + area->prev->next = new_area; + else + pExaScr->info->offScreenAreas = new_area; + area->prev = new_area; + area->base_offset = new_area->base_offset + new_area->size; + area->size = real_size; + } else + pExaScr->numOffscreenAvailable--; + + /* + * Mark this area as in use + */ + if (locked) + area->state = ExaOffscreenLocked; + else + area->state = ExaOffscreenRemovable; + area->privData = privData; + area->save = save; + area->last_use = pExaScr->offScreenCounter++; + area->offset = (area->base_offset + align - 1); + area->offset -= area->offset % align; + area->align = align; + + ExaOffscreenValidate (pScreen); + + DBG_OFFSCREEN (("Alloc 0x%x -> 0x%x (0x%x)\n", size, + area->base_offset, area->offset)); + return area; +} + +/** + * Ejects all offscreen areas, and uninitializes the offscreen memory manager. + */ +void +ExaOffscreenSwapOut (ScreenPtr pScreen) +{ + ExaScreenPriv (pScreen); + + ExaOffscreenValidate (pScreen); + /* loop until a single free area spans the space */ + for (;;) + { + ExaOffscreenArea *area = pExaScr->info->offScreenAreas; + + if (!area) + break; + if (area->state == ExaOffscreenAvail) + { + area = area->next; + if (!area) + break; + } + assert (area->state != ExaOffscreenAvail); + (void) ExaOffscreenKickOut (pScreen, area); + ExaOffscreenValidate (pScreen); + } + ExaOffscreenValidate (pScreen); + ExaOffscreenFini (pScreen); +} + +/** Ejects all pixmaps managed by EXA. */ +static void +ExaOffscreenEjectPixmaps (ScreenPtr pScreen) +{ + ExaScreenPriv (pScreen); + + ExaOffscreenValidate (pScreen); + /* loop until a single free area spans the space */ + for (;;) + { + ExaOffscreenArea *area; + + for (area = pExaScr->info->offScreenAreas; area != NULL; + area = area->next) + { + if (area->state == ExaOffscreenRemovable && + area->save == exaPixmapSave) + { + (void) ExaOffscreenKickOut (pScreen, area); + ExaOffscreenValidate (pScreen); + break; + } + } + if (area == NULL) + break; + } + ExaOffscreenValidate (pScreen); +} + +void +ExaOffscreenSwapIn (ScreenPtr pScreen) +{ + exaOffscreenInit (pScreen); +} + +/** + * Prepares EXA for disabling of FB access, or restoring it. + * + * In version 2.1, the disabling results in pixmaps being ejected, while other + * allocations remain. With this plus the prevention of migration while + * swappedOut is set, EXA by itself should not cause any access of the + * framebuffer to occur while swapped out. Any remaining issues are the + * responsibility of the driver. + * + * Prior to version 2.1, all allocations, including locked ones, are ejected + * when access is disabled, and the allocator is torn down while swappedOut + * is set. This is more drastic, and caused implementation difficulties for + * many drivers that could otherwise handle the lack of FB access while + * swapped out. + */ +void +exaEnableDisableFBAccess (int index, Bool enable) +{ + ScreenPtr pScreen = screenInfo.screens[index]; + ExaScreenPriv (pScreen); + + if (pExaScr->info->flags & EXA_HANDLES_PIXMAPS) + return; + + if (!enable && pExaScr->disableFbCount++ == 0) { + if (pExaScr->info->exa_minor < 1) + ExaOffscreenSwapOut (pScreen); + else + ExaOffscreenEjectPixmaps (pScreen); + pExaScr->swappedOut = TRUE; + } + + if (enable && --pExaScr->disableFbCount == 0) { + if (pExaScr->info->exa_minor < 1) + ExaOffscreenSwapIn (pScreen); + pExaScr->swappedOut = FALSE; + } +} + +/* merge the next free area into this one */ +static void +ExaOffscreenMerge (ExaScreenPrivPtr pExaScr, ExaOffscreenArea *area) +{ + ExaOffscreenArea *next = area->next; + + /* account for space */ + area->size += next->size; + /* frob pointer */ + area->next = next->next; + if (area->next) + area->next->prev = area; + else + pExaScr->info->offScreenAreas->prev = area; + free(next); + + pExaScr->numOffscreenAvailable--; +} + +/** + * exaOffscreenFree frees an allocation. + * + * @param pScreen current screen + * @param area offscreen area to free + * + * exaOffscreenFree frees an allocation created by exaOffscreenAlloc. Note that + * the save callback of the area is not called, and it is up to the driver to + * do any cleanup necessary as a result. + * + * @return pointer to the newly freed area. This behavior should not be relied + * on. + */ +ExaOffscreenArea * +exaOffscreenFree (ScreenPtr pScreen, ExaOffscreenArea *area) +{ + ExaScreenPriv(pScreen); + ExaOffscreenArea *next = area->next; + ExaOffscreenArea *prev; + + DBG_OFFSCREEN (("Free 0x%x -> 0x%x (0x%x)\n", area->size, + area->base_offset, area->offset)); + ExaOffscreenValidate (pScreen); + + area->state = ExaOffscreenAvail; + area->save = NULL; + area->last_use = 0; + area->eviction_cost = 0; + /* + * Find previous area + */ + if (area == pExaScr->info->offScreenAreas) + prev = NULL; + else + prev = area->prev; + + pExaScr->numOffscreenAvailable++; + + /* link with next area if free */ + if (next && next->state == ExaOffscreenAvail) + ExaOffscreenMerge (pExaScr, area); + + /* link with prev area if free */ + if (prev && prev->state == ExaOffscreenAvail) + { + area = prev; + ExaOffscreenMerge (pExaScr, area); + } + + ExaOffscreenValidate (pScreen); + DBG_OFFSCREEN(("\tdone freeing\n")); + return area; +} + +void +ExaOffscreenMarkUsed (PixmapPtr pPixmap) +{ + ExaPixmapPriv (pPixmap); + ExaScreenPriv (pPixmap->drawable.pScreen); + + if (!pExaPixmap || !pExaPixmap->area) + return; + + pExaPixmap->area->last_use = pExaScr->offScreenCounter++; +} + +/** + * Defragment offscreen memory by compacting allocated areas at the end of it, + * leaving the total amount of memory available as a single area at the + * beginning (when there are no pinned allocations). + */ +_X_HIDDEN ExaOffscreenArea* +ExaOffscreenDefragment (ScreenPtr pScreen) +{ + ExaScreenPriv (pScreen); + ExaOffscreenArea *area, *largest_available = NULL; + int largest_size = 0; + PixmapPtr pDstPix; + ExaPixmapPrivPtr pExaDstPix; + + pDstPix = (*pScreen->CreatePixmap) (pScreen, 0, 0, 0, 0); + + if (!pDstPix) + return NULL; + + pExaDstPix = ExaGetPixmapPriv (pDstPix); + pExaDstPix->use_gpu_copy = TRUE; + + for (area = pExaScr->info->offScreenAreas->prev; + area != pExaScr->info->offScreenAreas; + ) + { + ExaOffscreenArea *prev = area->prev; + PixmapPtr pSrcPix; + ExaPixmapPrivPtr pExaSrcPix; + Bool save_use_gpu_copy; + int save_pitch; + + if (area->state != ExaOffscreenAvail || + prev->state == ExaOffscreenLocked || + (prev->state == ExaOffscreenRemovable && + prev->save != exaPixmapSave)) { + area = prev; + continue; + } + + if (prev->state == ExaOffscreenAvail) { + if (area == largest_available) { + largest_available = prev; + largest_size += prev->size; + } + area = prev; + ExaOffscreenMerge (pExaScr, area); + continue; + } + + if (area->size > largest_size) { + largest_available = area; + largest_size = area->size; + } + + pSrcPix = prev->privData; + pExaSrcPix = ExaGetPixmapPriv (pSrcPix); + + pExaDstPix->fb_ptr = pExaScr->info->memoryBase + + area->base_offset + area->size - prev->size + prev->base_offset - + prev->offset; + pExaDstPix->fb_ptr -= (unsigned long)pExaDstPix->fb_ptr % prev->align; + + if (pExaDstPix->fb_ptr <= pExaSrcPix->fb_ptr) { + area = prev; + continue; + } + + if (!(pExaScr->info->flags & EXA_SUPPORTS_OFFSCREEN_OVERLAPS) && + (pExaSrcPix->fb_ptr + prev->size) > pExaDstPix->fb_ptr) { + area = prev; + continue; + } + + save_use_gpu_copy = pExaSrcPix->use_gpu_copy; + save_pitch = pSrcPix->devKind; + + pExaSrcPix->use_gpu_copy = TRUE; + pSrcPix->devKind = pExaSrcPix->fb_pitch; + + pDstPix->drawable.width = pSrcPix->drawable.width; + pDstPix->devKind = pSrcPix->devKind; + pDstPix->drawable.height = pSrcPix->drawable.height; + pDstPix->drawable.depth = pSrcPix->drawable.depth; + pDstPix->drawable.bitsPerPixel = pSrcPix->drawable.bitsPerPixel; + + if (!pExaScr->info->PrepareCopy (pSrcPix, pDstPix, -1, -1, GXcopy, ~0)) { + pExaSrcPix->use_gpu_copy = save_use_gpu_copy; + pSrcPix->devKind = save_pitch; + area = prev; + continue; + } + + pExaScr->info->Copy (pDstPix, 0, 0, 0, 0, pDstPix->drawable.width, + pDstPix->drawable.height); + pExaScr->info->DoneCopy (pDstPix); + exaMarkSync (pScreen); + + DBG_OFFSCREEN(("Before swap: prev=0x%08x-0x%08x-0x%08x area=0x%08x-0x%08x-0x%08x\n", + prev->base_offset, prev->offset, prev->base_offset + prev->size, + area->base_offset, area->offset, area->base_offset + area->size)); + + /* Calculate swapped area offsets and sizes */ + area->base_offset = prev->base_offset; + area->offset = area->base_offset; + prev->offset += pExaDstPix->fb_ptr - pExaSrcPix->fb_ptr; + assert(prev->offset >= pExaScr->info->offScreenBase && + prev->offset < pExaScr->info->memorySize); + prev->base_offset = prev->offset; + if (area->next) + prev->size = area->next->base_offset - prev->base_offset; + else + prev->size = pExaScr->info->memorySize - prev->base_offset; + area->size = prev->base_offset - area->base_offset; + + DBG_OFFSCREEN(("After swap: area=0x%08x-0x%08x-0x%08x prev=0x%08x-0x%08x-0x%08x\n", + area->base_offset, area->offset, area->base_offset + area->size, + prev->base_offset, prev->offset, prev->base_offset + prev->size)); + + /* Swap areas in list */ + if (area->next) + area->next->prev = prev; + else + pExaScr->info->offScreenAreas->prev = prev; + if (prev->prev->next) + prev->prev->next = area; + else + pExaScr->info->offScreenAreas = area; + prev->next = area->next; + area->next = prev; + area->prev = prev->prev; + prev->prev = area; + if (!area->prev->next) + pExaScr->info->offScreenAreas = area; + +#if DEBUG_OFFSCREEN + if (prev->prev == prev || prev->next == prev) + ErrorF("Whoops, prev points to itself!\n"); + + if (area->prev == area || area->next == area) + ErrorF("Whoops, area points to itself!\n"); +#endif + + pExaSrcPix->fb_ptr = pExaDstPix->fb_ptr; + pExaSrcPix->use_gpu_copy = save_use_gpu_copy; + pSrcPix->devKind = save_pitch; + } + + pDstPix->drawable.width = 0; + pDstPix->drawable.height = 0; + pDstPix->drawable.depth = 0; + pDstPix->drawable.bitsPerPixel = 0; + + (*pScreen->DestroyPixmap) (pDstPix); + + if (area->state == ExaOffscreenAvail && area->size > largest_size) + return area; + + return largest_available; +} + +/** + * exaOffscreenInit initializes the offscreen memory manager. + * + * @param pScreen current screen + * + * exaOffscreenInit is called by exaDriverInit to set up the memory manager for + * the screen, if any offscreen memory is available. + */ +Bool +exaOffscreenInit (ScreenPtr pScreen) +{ + ExaScreenPriv (pScreen); + ExaOffscreenArea *area; + + /* Allocate a big free area */ + area = malloc(sizeof (ExaOffscreenArea)); + + if (!area) + return FALSE; + + area->state = ExaOffscreenAvail; + area->base_offset = pExaScr->info->offScreenBase; + area->offset = area->base_offset; + area->align = 0; + area->size = pExaScr->info->memorySize - area->base_offset; + area->save = NULL; + area->next = NULL; + area->prev = area; + area->last_use = 0; + area->eviction_cost = 0; + + /* Add it to the free areas */ + pExaScr->info->offScreenAreas = area; + pExaScr->offScreenCounter = 1; + pExaScr->numOffscreenAvailable = 1; + + ExaOffscreenValidate (pScreen); + + return TRUE; +} + +void +ExaOffscreenFini (ScreenPtr pScreen) +{ + ExaScreenPriv (pScreen); + ExaOffscreenArea *area; + + /* just free all of the area records */ + while ((area = pExaScr->info->offScreenAreas)) + { + pExaScr->info->offScreenAreas = area->next; + free(area); + } +} diff --git a/exa/exa_priv.h b/exa/exa_priv.h new file mode 100644 index 0000000..e5d90d4 --- /dev/null +++ b/exa/exa_priv.h @@ -0,0 +1,725 @@ +/* + * + * Copyright (C) 2000 Keith Packard, member of The XFree86 Project, Inc. + * 2005 Zack Rusin, Trolltech + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Keith Packard not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Keith Packard makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY + * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + */ + +#ifndef EXAPRIV_H +#define EXAPRIV_H + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include "exa.h" + +#include <X11/X.h> +#include <X11/Xproto.h> +#ifdef MITSHM +#include "shmint.h" +#endif +#include "scrnintstr.h" +#include "pixmapstr.h" +#include "windowstr.h" +#include "servermd.h" +#include "mibstore.h" +#include "colormapst.h" +#include "gcstruct.h" +#include "input.h" +#include "mipointer.h" +#include "mi.h" +#include "dix.h" +#include "fb.h" +#include "fboverlay.h" +#include "fbpict.h" +#include "glyphstr.h" +#include "damage.h" + +#define DEBUG_TRACE_FALL 0 +#define DEBUG_MIGRATE 0 +#define DEBUG_PIXMAP 0 +#define DEBUG_OFFSCREEN 0 +#define DEBUG_GLYPH_CACHE 0 + +#if DEBUG_TRACE_FALL +#define EXA_FALLBACK(x) \ +do { \ + ErrorF("EXA fallback at %s: ", __FUNCTION__); \ + ErrorF x; \ +} while (0) + +char +exaDrawableLocation(DrawablePtr pDrawable); +#else +#define EXA_FALLBACK(x) +#endif + +#if DEBUG_PIXMAP +#define DBG_PIXMAP(a) ErrorF a +#else +#define DBG_PIXMAP(a) +#endif + +#ifndef EXA_MAX_FB +#define EXA_MAX_FB FB_OVERLAY_MAX +#endif + +#ifdef DEBUG +#define EXA_FatalErrorDebug(x) FatalError x +#define EXA_FatalErrorDebugWithRet(x, ret) FatalError x +#else +#define EXA_FatalErrorDebug(x) ErrorF x +#define EXA_FatalErrorDebugWithRet(x, ret) \ +do { \ + ErrorF x; \ + return ret; \ +} while (0) +#endif + +/** + * This is the list of migration heuristics supported by EXA. See + * exaDoMigration() for what their implementations do. + */ +enum ExaMigrationHeuristic { + ExaMigrationGreedy, + ExaMigrationAlways, + ExaMigrationSmart +}; + +typedef struct { + unsigned char sha1[20]; +} ExaCachedGlyphRec, *ExaCachedGlyphPtr; + +typedef struct { + /* The identity of the cache, statically configured at initialization */ + unsigned int format; + int glyphWidth; + int glyphHeight; + + int size; /* Size of cache; eventually this should be dynamically determined */ + + /* Hash table mapping from glyph sha1 to position in the glyph; we use + * open addressing with a hash table size determined based on size and large + * enough so that we always have a good amount of free space, so we can + * use linear probing. (Linear probing is preferrable to double hashing + * here because it allows us to easily remove entries.) + */ + int *hashEntries; + int hashSize; + + ExaCachedGlyphPtr glyphs; + int glyphCount; /* Current number of glyphs */ + + PicturePtr picture; /* Where the glyphs of the cache are stored */ + int yOffset; /* y location within the picture where the cache starts */ + int columns; /* Number of columns the glyphs are layed out in */ + int evictionPosition; /* Next random position to evict a glyph */ +} ExaGlyphCacheRec, *ExaGlyphCachePtr; + +#define EXA_NUM_GLYPH_CACHES 4 + +#define EXA_FALLBACK_COPYWINDOW (1 << 0) +#define EXA_ACCEL_COPYWINDOW (1 << 1) + +typedef struct _ExaMigrationRec { + Bool as_dst; + Bool as_src; + PixmapPtr pPix; + RegionPtr pReg; +} ExaMigrationRec, *ExaMigrationPtr; + +typedef void (*EnableDisableFBAccessProcPtr)(int, Bool); +typedef struct { + ExaDriverPtr info; + ScreenBlockHandlerProcPtr SavedBlockHandler; + ScreenWakeupHandlerProcPtr SavedWakeupHandler; + CreateGCProcPtr SavedCreateGC; + CloseScreenProcPtr SavedCloseScreen; + GetImageProcPtr SavedGetImage; + GetSpansProcPtr SavedGetSpans; + CreatePixmapProcPtr SavedCreatePixmap; + DestroyPixmapProcPtr SavedDestroyPixmap; + CopyWindowProcPtr SavedCopyWindow; + ChangeWindowAttributesProcPtr SavedChangeWindowAttributes; + BitmapToRegionProcPtr SavedBitmapToRegion; + CreateScreenResourcesProcPtr SavedCreateScreenResources; + ModifyPixmapHeaderProcPtr SavedModifyPixmapHeader; + SourceValidateProcPtr SavedSourceValidate; + CompositeProcPtr SavedComposite; + TrianglesProcPtr SavedTriangles; + GlyphsProcPtr SavedGlyphs; + TrapezoidsProcPtr SavedTrapezoids; + AddTrapsProcPtr SavedAddTraps; + void (*do_migration) (ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel); + Bool (*pixmap_has_gpu_copy) (PixmapPtr pPixmap); + void (*do_move_in_pixmap) (PixmapPtr pPixmap); + void (*do_move_out_pixmap) (PixmapPtr pPixmap); + void (*prepare_access_reg)(PixmapPtr pPixmap, int index, RegionPtr pReg); + + Bool swappedOut; + enum ExaMigrationHeuristic migration; + Bool checkDirtyCorrectness; + unsigned disableFbCount; + Bool optimize_migration; + unsigned offScreenCounter; + unsigned numOffscreenAvailable; + CARD32 lastDefragment; + CARD32 nextDefragment; + PixmapPtr deferred_mixed_pixmap; + + /* Reference counting for accessed pixmaps */ + struct { + PixmapPtr pixmap; + int count; + Bool retval; + } access[EXA_NUM_PREPARE_INDICES]; + + /* Holds information on fallbacks that cannot be relayed otherwise. */ + unsigned int fallback_flags; + unsigned int fallback_counter; + + ExaGlyphCacheRec glyphCaches[EXA_NUM_GLYPH_CACHES]; + + /** + * Regions affected by fallback composite source / mask operations. + */ + + RegionRec srcReg; + RegionRec maskReg; + PixmapPtr srcPix; + +} ExaScreenPrivRec, *ExaScreenPrivPtr; + +/* + * This is the only completely portable way to + * compute this info. + */ +#ifndef BitsPerPixel +#define BitsPerPixel(d) (\ + PixmapWidthPaddingInfo[d].notPower2 ? \ + (PixmapWidthPaddingInfo[d].bytesPerPixel * 8) : \ + ((1 << PixmapWidthPaddingInfo[d].padBytesLog2) * 8 / \ + (PixmapWidthPaddingInfo[d].padRoundUp+1))) +#endif + +extern DevPrivateKeyRec exaScreenPrivateKeyRec; +#define exaScreenPrivateKey (&exaScreenPrivateKeyRec) +extern DevPrivateKeyRec exaPixmapPrivateKeyRec; +#define exaPixmapPrivateKey (&exaPixmapPrivateKeyRec) +extern DevPrivateKeyRec exaGCPrivateKeyRec; +#define exaGCPrivateKey (&exaGCPrivateKeyRec) + +#define ExaGetScreenPriv(s) ((ExaScreenPrivPtr)dixLookupPrivate(&(s)->devPrivates, exaScreenPrivateKey)) +#define ExaScreenPriv(s) ExaScreenPrivPtr pExaScr = ExaGetScreenPriv(s) + +#define ExaGetGCPriv(gc) ((ExaGCPrivPtr)dixLookupPrivate(&(gc)->devPrivates, exaGCPrivateKey)) +#define ExaGCPriv(gc) ExaGCPrivPtr pExaGC = ExaGetGCPriv(gc) + +/* + * Some macros to deal with function wrapping. + */ +#define wrap(priv, real, mem, func) {\ + priv->Saved##mem = real->mem; \ + real->mem = func; \ +} + +#define unwrap(priv, real, mem) {\ + real->mem = priv->Saved##mem; \ +} + +#define swap(priv, real, mem) {\ + void *tmp = priv->Saved##mem; \ + priv->Saved##mem = real->mem; \ + real->mem = tmp; \ +} + +#define EXA_PRE_FALLBACK(_screen_) \ + ExaScreenPriv(_screen_); \ + pExaScr->fallback_counter++; + +#define EXA_POST_FALLBACK(_screen_) \ + pExaScr->fallback_counter--; + +#define EXA_PRE_FALLBACK_GC(_gc_) \ + ExaScreenPriv(_gc_->pScreen); \ + ExaGCPriv(_gc_); \ + pExaScr->fallback_counter++; \ + swap(pExaGC, _gc_, ops); + +#define EXA_POST_FALLBACK_GC(_gc_) \ + pExaScr->fallback_counter--; \ + swap(pExaGC, _gc_, ops); + +/** Align an offset to an arbitrary alignment */ +#define EXA_ALIGN(offset, align) (((offset) + (align) - 1) - \ + (((offset) + (align) - 1) % (align))) +/** Align an offset to a power-of-two alignment */ +#define EXA_ALIGN2(offset, align) (((offset) + (align) - 1) & ~((align) - 1)) + +#define EXA_PIXMAP_SCORE_MOVE_IN 10 +#define EXA_PIXMAP_SCORE_MAX 20 +#define EXA_PIXMAP_SCORE_MOVE_OUT -10 +#define EXA_PIXMAP_SCORE_MIN -20 +#define EXA_PIXMAP_SCORE_PINNED 1000 +#define EXA_PIXMAP_SCORE_INIT 1001 + +#define ExaGetPixmapPriv(p) ((ExaPixmapPrivPtr)dixLookupPrivate(&(p)->devPrivates, exaPixmapPrivateKey)) +#define ExaSetPixmapPriv(p,a) dixSetPrivate(&(p)->devPrivates, exaPixmapPrivateKey, a) +#define ExaPixmapPriv(p) ExaPixmapPrivPtr pExaPixmap = ExaGetPixmapPriv(p) + +#define EXA_RANGE_PITCH (1 << 0) +#define EXA_RANGE_WIDTH (1 << 1) +#define EXA_RANGE_HEIGHT (1 << 2) + +typedef struct { + ExaOffscreenArea *area; + int score; /**< score for the move-in vs move-out heuristic */ + Bool use_gpu_copy; + + CARD8 *sys_ptr; /**< pointer to pixmap data in system memory */ + int sys_pitch; /**< pitch of pixmap in system memory */ + + CARD8 *fb_ptr; /**< pointer to pixmap data in framebuffer memory */ + int fb_pitch; /**< pitch of pixmap in framebuffer memory */ + unsigned int fb_size; /**< size of pixmap in framebuffer memory */ + + /** + * Holds information about whether this pixmap can be used for + * acceleration (== 0) or not (> 0). + * + * Contains a OR'ed combination of the following values: + * EXA_RANGE_PITCH - set if the pixmap's pitch is out of range + * EXA_RANGE_WIDTH - set if the pixmap's width is out of range + * EXA_RANGE_HEIGHT - set if the pixmap's height is out of range + */ + unsigned int accel_blocked; + + /** + * The damage record contains the areas of the pixmap's current location + * (framebuffer or system) that have been damaged compared to the other + * location. + */ + DamagePtr pDamage; + /** + * The valid regions mark the valid bits (at least, as they're derived from + * damage, which may be overreported) of a pixmap's system and FB copies. + */ + RegionRec validSys, validFB; + /** + * Driver private storage per EXA pixmap + */ + void *driverPriv; +} ExaPixmapPrivRec, *ExaPixmapPrivPtr; + +typedef struct { + /* GC values from the layer below. */ + GCOps *Savedops; + GCFuncs *Savedfuncs; +} ExaGCPrivRec, *ExaGCPrivPtr; + +typedef struct { + PicturePtr pDst; + INT16 xSrc; + INT16 ySrc; + INT16 xMask; + INT16 yMask; + INT16 xDst; + INT16 yDst; + INT16 width; + INT16 height; +} ExaCompositeRectRec, *ExaCompositeRectPtr; + +/** + * exaDDXDriverInit must be implemented by the DDX using EXA, and is the place + * to set EXA options or hook in screen functions to handle using EXA as the AA. + */ +void exaDDXDriverInit (ScreenPtr pScreen); + +/* exa_unaccel.c */ +void +exaPrepareAccessGC(GCPtr pGC); + +void +exaFinishAccessGC(GCPtr pGC); + +void +ExaCheckFillSpans (DrawablePtr pDrawable, GCPtr pGC, int nspans, + DDXPointPtr ppt, int *pwidth, int fSorted); + +void +ExaCheckSetSpans (DrawablePtr pDrawable, GCPtr pGC, char *psrc, + DDXPointPtr ppt, int *pwidth, int nspans, int fSorted); + +void +ExaCheckPutImage (DrawablePtr pDrawable, GCPtr pGC, int depth, + int x, int y, int w, int h, int leftPad, int format, + char *bits); + +void +ExaCheckCopyNtoN (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC, + BoxPtr pbox, int nbox, int dx, int dy, Bool reverse, + Bool upsidedown, Pixel bitplane, void *closure); + +RegionPtr +ExaCheckCopyArea (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC, + int srcx, int srcy, int w, int h, int dstx, int dsty); + +RegionPtr +ExaCheckCopyPlane (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC, + int srcx, int srcy, int w, int h, int dstx, int dsty, + unsigned long bitPlane); + +void +ExaCheckPolyPoint (DrawablePtr pDrawable, GCPtr pGC, int mode, int npt, + DDXPointPtr pptInit); + +void +ExaCheckPolylines (DrawablePtr pDrawable, GCPtr pGC, + int mode, int npt, DDXPointPtr ppt); + +void +ExaCheckPolySegment (DrawablePtr pDrawable, GCPtr pGC, + int nsegInit, xSegment *pSegInit); + +void +ExaCheckPolyArc (DrawablePtr pDrawable, GCPtr pGC, + int narcs, xArc *pArcs); + +void +ExaCheckPolyFillRect (DrawablePtr pDrawable, GCPtr pGC, + int nrect, xRectangle *prect); + +void +ExaCheckImageGlyphBlt (DrawablePtr pDrawable, GCPtr pGC, + int x, int y, unsigned int nglyph, + CharInfoPtr *ppci, pointer pglyphBase); + +void +ExaCheckPolyGlyphBlt (DrawablePtr pDrawable, GCPtr pGC, + int x, int y, unsigned int nglyph, + CharInfoPtr *ppci, pointer pglyphBase); + +void +ExaCheckPushPixels (GCPtr pGC, PixmapPtr pBitmap, + DrawablePtr pDrawable, + int w, int h, int x, int y); + +void +ExaCheckCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc); + +void +ExaCheckGetImage(DrawablePtr pDrawable, int x, int y, int w, int h, + unsigned int format, unsigned long planeMask, char *d); + +void +ExaCheckGetSpans (DrawablePtr pDrawable, + int wMax, + DDXPointPtr ppt, + int *pwidth, + int nspans, + char *pdstStart); + +void +ExaCheckAddTraps (PicturePtr pPicture, + INT16 x_off, + INT16 y_off, + int ntrap, + xTrap *traps); + +/* exa_accel.c */ + +static _X_INLINE Bool +exaGCReadsDestination(DrawablePtr pDrawable, unsigned long planemask, + unsigned int fillStyle, unsigned char alu, + unsigned int clientClipType) +{ + return ((alu != GXcopy && alu != GXclear && alu != GXset && + alu != GXcopyInverted) || fillStyle == FillStippled || + clientClipType != CT_NONE || !EXA_PM_IS_SOLID(pDrawable, planemask)); +} + +void +exaCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc); + +Bool +exaFillRegionTiled (DrawablePtr pDrawable, RegionPtr pRegion, PixmapPtr pTile, + DDXPointPtr pPatOrg, CARD32 planemask, CARD32 alu, + unsigned int clientClipType); + +void +exaGetImage (DrawablePtr pDrawable, int x, int y, int w, int h, + unsigned int format, unsigned long planeMask, char *d); + +RegionPtr +exaCopyArea(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable, GCPtr pGC, + int srcx, int srcy, int width, int height, int dstx, int dsty); + +Bool +exaHWCopyNtoN (DrawablePtr pSrcDrawable, + DrawablePtr pDstDrawable, + GCPtr pGC, + BoxPtr pbox, + int nbox, + int dx, + int dy, + Bool reverse, + Bool upsidedown); + +void +exaCopyNtoN (DrawablePtr pSrcDrawable, + DrawablePtr pDstDrawable, + GCPtr pGC, + BoxPtr pbox, + int nbox, + int dx, + int dy, + Bool reverse, + Bool upsidedown, + Pixel bitplane, + void *closure); + +extern const GCOps exaOps; + +void +ExaCheckComposite (CARD8 op, + PicturePtr pSrc, + PicturePtr pMask, + PicturePtr pDst, + INT16 xSrc, + INT16 ySrc, + INT16 xMask, + INT16 yMask, + INT16 xDst, + INT16 yDst, + CARD16 width, + CARD16 height); + +void +ExaCheckGlyphs (CARD8 op, + PicturePtr pSrc, + PicturePtr pDst, + PictFormatPtr maskFormat, + INT16 xSrc, + INT16 ySrc, + int nlist, + GlyphListPtr list, + GlyphPtr *glyphs); + +/* exa_offscreen.c */ +void +ExaOffscreenSwapOut (ScreenPtr pScreen); + +void +ExaOffscreenSwapIn (ScreenPtr pScreen); + +ExaOffscreenArea* +ExaOffscreenDefragment (ScreenPtr pScreen); + +Bool +exaOffscreenInit(ScreenPtr pScreen); + +void +ExaOffscreenFini (ScreenPtr pScreen); + +/* exa.c */ +Bool +ExaDoPrepareAccess(PixmapPtr pPixmap, int index); + +void +exaPrepareAccess(DrawablePtr pDrawable, int index); + +void +exaFinishAccess(DrawablePtr pDrawable, int index); + +void +exaDestroyPixmap(PixmapPtr pPixmap); + +void +exaPixmapDirty(PixmapPtr pPix, int x1, int y1, int x2, int y2); + +void +exaGetDrawableDeltas (DrawablePtr pDrawable, PixmapPtr pPixmap, + int *xp, int *yp); + +Bool +exaPixmapHasGpuCopy(PixmapPtr p); + +PixmapPtr +exaGetOffscreenPixmap (DrawablePtr pDrawable, int *xp, int *yp); + +PixmapPtr +exaGetDrawablePixmap(DrawablePtr pDrawable); + +void +exaSetFbPitch(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap, + int w, int h, int bpp); + +void +exaSetAccelBlock(ExaScreenPrivPtr pExaScr, ExaPixmapPrivPtr pExaPixmap, + int w, int h, int bpp); + +void +exaDoMigration (ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel); + +Bool +exaPixmapIsPinned (PixmapPtr pPix); + +extern const GCFuncs exaGCFuncs; + +/* exa_classic.c */ +PixmapPtr +exaCreatePixmap_classic(ScreenPtr pScreen, int w, int h, int depth, + unsigned usage_hint); + +Bool +exaModifyPixmapHeader_classic(PixmapPtr pPixmap, int width, int height, int depth, + int bitsPerPixel, int devKind, pointer pPixData); + +Bool +exaDestroyPixmap_classic (PixmapPtr pPixmap); + +Bool +exaPixmapHasGpuCopy_classic(PixmapPtr pPixmap); + +/* exa_driver.c */ +PixmapPtr +exaCreatePixmap_driver(ScreenPtr pScreen, int w, int h, int depth, + unsigned usage_hint); + +Bool +exaModifyPixmapHeader_driver(PixmapPtr pPixmap, int width, int height, int depth, + int bitsPerPixel, int devKind, pointer pPixData); + +Bool +exaDestroyPixmap_driver (PixmapPtr pPixmap); + +Bool +exaPixmapHasGpuCopy_driver(PixmapPtr pPixmap); + +/* exa_mixed.c */ +PixmapPtr +exaCreatePixmap_mixed(ScreenPtr pScreen, int w, int h, int depth, + unsigned usage_hint); + +Bool +exaModifyPixmapHeader_mixed(PixmapPtr pPixmap, int width, int height, int depth, + int bitsPerPixel, int devKind, pointer pPixData); + +Bool +exaDestroyPixmap_mixed(PixmapPtr pPixmap); + +Bool +exaPixmapHasGpuCopy_mixed(PixmapPtr pPixmap); + +/* exa_migration_mixed.c */ +void +exaCreateDriverPixmap_mixed(PixmapPtr pPixmap); + +void +exaDoMigration_mixed(ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel); + +void +exaMoveInPixmap_mixed(PixmapPtr pPixmap); + +void +exaDamageReport_mixed(DamagePtr pDamage, RegionPtr pRegion, void *closure); + +void +exaPrepareAccessReg_mixed(PixmapPtr pPixmap, int index, RegionPtr pReg); + +/* exa_render.c */ +Bool +exaOpReadsDestination (CARD8 op); + +void +exaComposite(CARD8 op, + PicturePtr pSrc, + PicturePtr pMask, + PicturePtr pDst, + INT16 xSrc, + INT16 ySrc, + INT16 xMask, + INT16 yMask, + INT16 xDst, + INT16 yDst, + CARD16 width, + CARD16 height); + +void +exaCompositeRects(CARD8 op, + PicturePtr Src, + PicturePtr pMask, + PicturePtr pDst, + int nrect, + ExaCompositeRectPtr rects); + +void +exaTrapezoids (CARD8 op, PicturePtr pSrc, PicturePtr pDst, + PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, + int ntrap, xTrapezoid *traps); + +void +exaTriangles (CARD8 op, PicturePtr pSrc, PicturePtr pDst, + PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, + int ntri, xTriangle *tris); + +/* exa_glyph.c */ +void +exaGlyphsInit(ScreenPtr pScreen); + +void +exaGlyphsFini (ScreenPtr pScreen); + +void +exaGlyphs (CARD8 op, + PicturePtr pSrc, + PicturePtr pDst, + PictFormatPtr maskFormat, + INT16 xSrc, + INT16 ySrc, + int nlist, + GlyphListPtr list, + GlyphPtr *glyphs); + +/* exa_migration_classic.c */ +void +exaCopyDirtyToSys (ExaMigrationPtr migrate); + +void +exaCopyDirtyToFb (ExaMigrationPtr migrate); + +void +exaDoMigration_classic (ExaMigrationPtr pixmaps, int npixmaps, Bool can_accel); + +void +exaPixmapSave (ScreenPtr pScreen, ExaOffscreenArea *area); + +void +exaMoveOutPixmap_classic (PixmapPtr pPixmap); + +void +exaMoveInPixmap_classic (PixmapPtr pPixmap); + +void +exaPrepareAccessReg_classic(PixmapPtr pPixmap, int index, RegionPtr pReg); + +#endif /* EXAPRIV_H */ diff --git a/exa/exa_render.c b/exa/exa_render.c new file mode 100644 index 0000000..6f2af8a --- /dev/null +++ b/exa/exa_render.c @@ -0,0 +1,1256 @@ +/* + * Copyright © 2001 Keith Packard + * + * Partly based on code that is Copyright © The XFree86 Project Inc. + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Keith Packard not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Keith Packard makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <stdlib.h> + +#include "exa_priv.h" + +#include "mipict.h" + +#if DEBUG_TRACE_FALL +static void exaCompositeFallbackPictDesc(PicturePtr pict, char *string, int n) +{ + char format[20]; + char size[20]; + char loc; + int temp; + + if (!pict) { + snprintf(string, n, "None"); + return; + } + + switch (pict->format) + { + case PICT_a8r8g8b8: + snprintf(format, 20, "ARGB8888"); + break; + case PICT_x8r8g8b8: + snprintf(format, 20, "XRGB8888"); + break; + case PICT_b8g8r8a8: + snprintf(format, 20, "BGRA8888"); + break; + case PICT_b8g8r8x8: + snprintf(format, 20, "BGRX8888"); + break; + case PICT_r5g6b5: + snprintf(format, 20, "RGB565 "); + break; + case PICT_x1r5g5b5: + snprintf(format, 20, "RGB555 "); + break; + case PICT_a8: + snprintf(format, 20, "A8 "); + break; + case PICT_a1: + snprintf(format, 20, "A1 "); + break; + default: + snprintf(format, 20, "0x%x", (int)pict->format); + break; + } + + if (pict->pDrawable) { + loc = exaGetOffscreenPixmap(pict->pDrawable, &temp, &temp) ? 's' : 'm'; + + snprintf(size, 20, "%dx%d%s", pict->pDrawable->width, + pict->pDrawable->height, pict->repeat ? + " R" : ""); + } else { + loc = '-'; + + snprintf(size, 20, "%s", pict->repeat ? " R" : ""); + } + + snprintf(string, n, "%p:%c fmt %s (%s)", pict->pDrawable, loc, format, size); +} + +static void +exaPrintCompositeFallback(CARD8 op, + PicturePtr pSrc, + PicturePtr pMask, + PicturePtr pDst) +{ + char sop[20]; + char srcdesc[40], maskdesc[40], dstdesc[40]; + + switch(op) + { + case PictOpSrc: + sprintf(sop, "Src"); + break; + case PictOpOver: + sprintf(sop, "Over"); + break; + default: + sprintf(sop, "0x%x", (int)op); + break; + } + + exaCompositeFallbackPictDesc(pSrc, srcdesc, 40); + exaCompositeFallbackPictDesc(pMask, maskdesc, 40); + exaCompositeFallbackPictDesc(pDst, dstdesc, 40); + + ErrorF("Composite fallback: op %s, \n" + " src %s, \n" + " mask %s, \n" + " dst %s, \n", + sop, srcdesc, maskdesc, dstdesc); +} +#endif /* DEBUG_TRACE_FALL */ + +Bool +exaOpReadsDestination (CARD8 op) +{ + /* FALSE (does not read destination) is the list of ops in the protocol + * document with "0" in the "Fb" column and no "Ab" in the "Fa" column. + * That's just Clear and Src. ReduceCompositeOp() will already have + * converted con/disjoint clear/src to Clear or Src. + */ + switch (op) { + case PictOpClear: + case PictOpSrc: + return FALSE; + default: + return TRUE; + } +} + + +static Bool +exaGetPixelFromRGBA(CARD32 *pixel, + CARD16 red, + CARD16 green, + CARD16 blue, + CARD16 alpha, + PictFormatPtr pFormat) +{ + int rbits, bbits, gbits, abits; + int rshift, bshift, gshift, ashift; + + *pixel = 0; + + if (!PICT_FORMAT_COLOR(pFormat->format) && + PICT_FORMAT_TYPE(pFormat->format) != PICT_TYPE_A) + return FALSE; + + rbits = PICT_FORMAT_R(pFormat->format); + gbits = PICT_FORMAT_G(pFormat->format); + bbits = PICT_FORMAT_B(pFormat->format); + abits = PICT_FORMAT_A(pFormat->format); + + rshift = pFormat->direct.red; + gshift = pFormat->direct.green; + bshift = pFormat->direct.blue; + ashift = pFormat->direct.alpha; + + *pixel |= ( blue >> (16 - bbits)) << bshift; + *pixel |= ( red >> (16 - rbits)) << rshift; + *pixel |= (green >> (16 - gbits)) << gshift; + *pixel |= (alpha >> (16 - abits)) << ashift; + + return TRUE; +} + +static Bool +exaGetRGBAFromPixel(CARD32 pixel, + CARD16 *red, + CARD16 *green, + CARD16 *blue, + CARD16 *alpha, + PictFormatPtr pFormat, + PictFormatShort format) +{ + int rbits, bbits, gbits, abits; + int rshift, bshift, gshift, ashift; + + if (!PICT_FORMAT_COLOR(format) && PICT_FORMAT_TYPE(format) != PICT_TYPE_A) + return FALSE; + + rbits = PICT_FORMAT_R(format); + gbits = PICT_FORMAT_G(format); + bbits = PICT_FORMAT_B(format); + abits = PICT_FORMAT_A(format); + + if (pFormat) { + rshift = pFormat->direct.red; + gshift = pFormat->direct.green; + bshift = pFormat->direct.blue; + ashift = pFormat->direct.alpha; + } else if (format == PICT_a8r8g8b8) { + rshift = 16; + gshift = 8; + bshift = 0; + ashift = 24; + } else + FatalError("EXA bug: exaGetRGBAFromPixel() doesn't match " + "createSourcePicture()\n"); + + if (rbits) { + *red = ((pixel >> rshift ) & ((1 << rbits) - 1)) << (16 - rbits); + while (rbits < 16) { + *red |= *red >> rbits; + rbits <<= 1; + } + + *green = ((pixel >> gshift ) & ((1 << gbits) - 1)) << (16 - gbits); + while (gbits < 16) { + *green |= *green >> gbits; + gbits <<= 1; + } + + *blue = ((pixel >> bshift ) & ((1 << bbits) - 1)) << (16 - bbits); + while (bbits < 16) { + *blue |= *blue >> bbits; + bbits <<= 1; + } + } else { + *red = 0x0000; + *green = 0x0000; + *blue = 0x0000; + } + + if (abits) { + *alpha = ((pixel >> ashift ) & ((1 << abits) - 1)) << (16 - abits); + while (abits < 16) { + *alpha |= *alpha >> abits; + abits <<= 1; + } + } else + *alpha = 0xffff; + + return TRUE; +} + +static int +exaTryDriverSolidFill(PicturePtr pSrc, + PicturePtr pDst, + INT16 xSrc, + INT16 ySrc, + INT16 xDst, + INT16 yDst, + CARD16 width, + CARD16 height) +{ + ExaScreenPriv (pDst->pDrawable->pScreen); + RegionRec region; + BoxPtr pbox; + int nbox; + int dst_off_x, dst_off_y; + PixmapPtr pSrcPix, pDstPix; + ExaPixmapPrivPtr pDstExaPix; + CARD32 pixel; + CARD16 red, green, blue, alpha; + + pDstPix = exaGetDrawablePixmap (pDst->pDrawable); + pDstExaPix = ExaGetPixmapPriv(pDstPix); + + /* Check whether the accelerator can use the destination pixmap. + */ + if (pDstExaPix->accel_blocked) + { + return -1; + } + + xDst += pDst->pDrawable->x; + yDst += pDst->pDrawable->y; + if (pSrc->pDrawable) { + xSrc += pSrc->pDrawable->x; + ySrc += pSrc->pDrawable->y; + } + + if (!miComputeCompositeRegion (®ion, pSrc, NULL, pDst, + xSrc, ySrc, 0, 0, xDst, yDst, + width, height)) + return 1; + + exaGetDrawableDeltas (pDst->pDrawable, pDstPix, &dst_off_x, &dst_off_y); + + RegionTranslate(®ion, dst_off_x, dst_off_y); + + if (pSrc->pDrawable) { + pSrcPix = exaGetDrawablePixmap (pSrc->pDrawable); + pixel = exaGetPixmapFirstPixel (pSrcPix); + } else + pixel = pSrc->pSourcePict->solidFill.color; + + if (!exaGetRGBAFromPixel(pixel, &red, &green, &blue, &alpha, + pSrc->pFormat, pSrc->format) || + !exaGetPixelFromRGBA(&pixel, red, green, blue, alpha, + pDst->pFormat)) + { + RegionUninit(®ion); + return -1; + } + + if (pExaScr->do_migration) { + ExaMigrationRec pixmaps[1]; + + pixmaps[0].as_dst = TRUE; + pixmaps[0].as_src = FALSE; + pixmaps[0].pPix = pDstPix; + pixmaps[0].pReg = ®ion; + exaDoMigration(pixmaps, 1, TRUE); + } + + if (!exaPixmapHasGpuCopy(pDstPix)) { + RegionUninit(®ion); + return 0; + } + + if (!(*pExaScr->info->PrepareSolid) (pDstPix, GXcopy, 0xffffffff, pixel)) + { + RegionUninit(®ion); + return -1; + } + + nbox = RegionNumRects(®ion); + pbox = RegionRects(®ion); + + while (nbox--) + { + (*pExaScr->info->Solid) (pDstPix, pbox->x1, pbox->y1, pbox->x2, pbox->y2); + pbox++; + } + + (*pExaScr->info->DoneSolid) (pDstPix); + exaMarkSync(pDst->pDrawable->pScreen); + + RegionUninit(®ion); + return 1; +} + +static int +exaTryDriverCompositeRects(CARD8 op, + PicturePtr pSrc, + PicturePtr pMask, + PicturePtr pDst, + int nrect, + ExaCompositeRectPtr rects) +{ + ExaScreenPriv (pDst->pDrawable->pScreen); + int src_off_x = 0, src_off_y = 0, mask_off_x = 0, mask_off_y = 0; + int dst_off_x, dst_off_y; + PixmapPtr pSrcPix = NULL, pMaskPix = NULL, pDstPix; + ExaPixmapPrivPtr pSrcExaPix = NULL, pMaskExaPix = NULL, pDstExaPix; + + if (!pExaScr->info->PrepareComposite) + return -1; + + if (pSrc->pDrawable) { + pSrcPix = exaGetDrawablePixmap(pSrc->pDrawable); + pSrcExaPix = ExaGetPixmapPriv(pSrcPix); + } + + if (pMask && pMask->pDrawable) { + pMaskPix = exaGetDrawablePixmap(pMask->pDrawable); + pMaskExaPix = ExaGetPixmapPriv(pMaskPix); + } + + pDstPix = exaGetDrawablePixmap(pDst->pDrawable); + pDstExaPix = ExaGetPixmapPriv(pDstPix); + + /* Check whether the accelerator can use these pixmaps. + * FIXME: If it cannot, use temporary pixmaps so that the drawing + * happens within limits. + */ + if (pDstExaPix->accel_blocked || + (pSrcExaPix && pSrcExaPix->accel_blocked) || + (pMaskExaPix && pMaskExaPix->accel_blocked)) + { + return -1; + } + + if (pExaScr->info->CheckComposite && + !(*pExaScr->info->CheckComposite) (op, pSrc, pMask, pDst)) + { + return -1; + } + + if (pExaScr->do_migration) { + ExaMigrationRec pixmaps[3]; + int i = 0; + + pixmaps[i].as_dst = TRUE; + pixmaps[i].as_src = exaOpReadsDestination(op); + pixmaps[i].pPix = pDstPix; + pixmaps[i].pReg = NULL; + i++; + + if (pSrcPix) { + pixmaps[i].as_dst = FALSE; + pixmaps[i].as_src = TRUE; + pixmaps[i].pPix = pSrcPix; + pixmaps[i].pReg = NULL; + i++; + } + + if (pMaskPix) { + pixmaps[i].as_dst = FALSE; + pixmaps[i].as_src = TRUE; + pixmaps[i].pPix = pMaskPix; + pixmaps[i].pReg = NULL; + i++; + } + + exaDoMigration(pixmaps, i, TRUE); + } + + pDstPix = exaGetOffscreenPixmap (pDst->pDrawable, &dst_off_x, &dst_off_y); + if (!pDstPix) + return 0; + + if (pSrcPix) { + pSrcPix = exaGetOffscreenPixmap (pSrc->pDrawable, &src_off_x, &src_off_y); + if (!pSrcPix) + return 0; + } + + if (pMaskPix) { + pMaskPix = exaGetOffscreenPixmap (pMask->pDrawable, &mask_off_x, &mask_off_y); + if (!pMaskPix) + return 0; + } + + if (!(*pExaScr->info->PrepareComposite) (op, pSrc, pMask, pDst, pSrcPix, + pMaskPix, pDstPix)) + return -1; + + while (nrect--) + { + INT16 xDst = rects->xDst + pDst->pDrawable->x; + INT16 yDst = rects->yDst + pDst->pDrawable->y; + INT16 xMask = rects->xMask; + INT16 yMask = rects->yMask; + INT16 xSrc = rects->xSrc; + INT16 ySrc = rects->ySrc; + RegionRec region; + BoxPtr pbox; + int nbox; + + if (pMaskPix) { + xMask += pMask->pDrawable->x; + yMask += pMask->pDrawable->y; + } + + if (pSrcPix) { + xSrc += pSrc->pDrawable->x; + ySrc += pSrc->pDrawable->y; + } + + if (!miComputeCompositeRegion (®ion, pSrc, pMask, pDst, + xSrc, ySrc, xMask, yMask, xDst, yDst, + rects->width, rects->height)) + goto next_rect; + + RegionTranslate(®ion, dst_off_x, dst_off_y); + + nbox = RegionNumRects(®ion); + pbox = RegionRects(®ion); + + xMask = xMask + mask_off_x - xDst - dst_off_x; + yMask = yMask + mask_off_y - yDst - dst_off_y; + xSrc = xSrc + src_off_x - xDst - dst_off_x; + ySrc = ySrc + src_off_y - yDst - dst_off_y; + + while (nbox--) + { + (*pExaScr->info->Composite) (pDstPix, + pbox->x1 + xSrc, + pbox->y1 + ySrc, + pbox->x1 + xMask, + pbox->y1 + yMask, + pbox->x1, + pbox->y1, + pbox->x2 - pbox->x1, + pbox->y2 - pbox->y1); + pbox++; + } + + next_rect: + RegionUninit(®ion); + + rects++; + } + + (*pExaScr->info->DoneComposite) (pDstPix); + exaMarkSync(pDst->pDrawable->pScreen); + + return 1; +} + +/** + * Copy a number of rectangles from source to destination in a single + * operation. This is specialized for glyph rendering: we don't have the + * special-case fallbacks found in exaComposite() - if the driver can support + * it, we use the driver functionality, otherwise we fall back straight to + * software. + */ +void +exaCompositeRects(CARD8 op, + PicturePtr pSrc, + PicturePtr pMask, + PicturePtr pDst, + int nrect, + ExaCompositeRectPtr rects) +{ + ExaScreenPriv (pDst->pDrawable->pScreen); + int n; + ExaCompositeRectPtr r; + int ret; + + /* If we get a mask, that means we're rendering to the exaGlyphs + * destination directly, so the damage layer takes care of this. + */ + if (!pMask) { + RegionRec region; + int x1 = MAXSHORT; + int y1 = MAXSHORT; + int x2 = MINSHORT; + int y2 = MINSHORT; + BoxRec box; + + /* We have to manage the damage ourselves, since CompositeRects isn't + * something in the screen that can be managed by the damage extension, + * and EXA depends on damage to track what needs to be migrated between + * the gpu and the cpu. + */ + + /* Compute the overall extents of the composited region - we're making + * the assumption here that we are compositing a bunch of glyphs that + * cluster closely together and damaging each glyph individually would + * be a loss compared to damaging the bounding box. + */ + n = nrect; + r = rects; + while (n--) { + int rect_x2 = r->xDst + r->width; + int rect_y2 = r->yDst + r->height; + + if (r->xDst < x1) x1 = r->xDst; + if (r->yDst < y1) y1 = r->yDst; + if (rect_x2 > x2) x2 = rect_x2; + if (rect_y2 > y2) y2 = rect_y2; + + r++; + } + + if (x2 <= x1 || y2 <= y1) + return; + + box.x1 = x1; + box.x2 = x2 < MAXSHORT ? x2 : MAXSHORT; + box.y1 = y1; + box.y2 = y2 < MAXSHORT ? y2 : MAXSHORT; + + /* The pixmap migration code relies on pendingDamage indicating + * the bounds of the current rendering, so we need to force + * the actual damage into that region before we do anything, and + * (see use of DamagePendingRegion in exaCopyDirty) + */ + + RegionInit(®ion, &box, 1); + + DamageRegionAppend(pDst->pDrawable, ®ion); + + RegionUninit(®ion); + } + + /************************************************************/ + + ValidatePicture (pSrc); + if (pMask) + ValidatePicture (pMask); + ValidatePicture (pDst); + + ret = exaTryDriverCompositeRects(op, pSrc, pMask, pDst, nrect, rects); + + if (ret != 1) { + if (ret == -1 && op == PictOpOver && pMask && pMask->componentAlpha && + (!pExaScr->info->CheckComposite || + ((*pExaScr->info->CheckComposite)(PictOpOutReverse, pSrc, pMask, + pDst) && + (*pExaScr->info->CheckComposite)(PictOpAdd, pSrc, pMask, pDst)))) { + ret = exaTryDriverCompositeRects(PictOpOutReverse, pSrc, pMask, + pDst, nrect, rects); + if (ret == 1) { + op = PictOpAdd; + ret = exaTryDriverCompositeRects(op, pSrc, pMask, pDst, nrect, + rects); + } + } + + if (ret != 1) { + n = nrect; + r = rects; + while (n--) { + ExaCheckComposite (op, pSrc, pMask, pDst, + r->xSrc, r->ySrc, + r->xMask, r->yMask, + r->xDst, r->yDst, + r->width, r->height); + r++; + } + } + } + + /************************************************************/ + + if (!pMask) { + /* Now we have to flush the damage out from pendingDamage => damage + * Calling DamageRegionProcessPending has that effect. + */ + + DamageRegionProcessPending(pDst->pDrawable); + } +} + +static int +exaTryDriverComposite(CARD8 op, + PicturePtr pSrc, + PicturePtr pMask, + PicturePtr pDst, + INT16 xSrc, + INT16 ySrc, + INT16 xMask, + INT16 yMask, + INT16 xDst, + INT16 yDst, + CARD16 width, + CARD16 height) +{ + ExaScreenPriv (pDst->pDrawable->pScreen); + RegionRec region; + BoxPtr pbox; + int nbox; + int src_off_x, src_off_y, mask_off_x, mask_off_y, dst_off_x, dst_off_y; + PixmapPtr pSrcPix = NULL, pMaskPix = NULL, pDstPix; + ExaPixmapPrivPtr pSrcExaPix = NULL, pMaskExaPix = NULL, pDstExaPix; + + if (pSrc->pDrawable) { + pSrcPix = exaGetDrawablePixmap(pSrc->pDrawable); + pSrcExaPix = ExaGetPixmapPriv(pSrcPix); + } + + pDstPix = exaGetDrawablePixmap(pDst->pDrawable); + pDstExaPix = ExaGetPixmapPriv(pDstPix); + + if (pMask && pMask->pDrawable) { + pMaskPix = exaGetDrawablePixmap(pMask->pDrawable); + pMaskExaPix = ExaGetPixmapPriv(pMaskPix); + } + + /* Check whether the accelerator can use these pixmaps. + * FIXME: If it cannot, use temporary pixmaps so that the drawing + * happens within limits. + */ + if (pDstExaPix->accel_blocked || + (pSrcExaPix && pSrcExaPix->accel_blocked) || + (pMaskExaPix && (pMaskExaPix->accel_blocked))) + { + return -1; + } + + xDst += pDst->pDrawable->x; + yDst += pDst->pDrawable->y; + + if (pMaskPix) { + xMask += pMask->pDrawable->x; + yMask += pMask->pDrawable->y; + } + + if (pSrcPix) { + xSrc += pSrc->pDrawable->x; + ySrc += pSrc->pDrawable->y; + } + + if (pExaScr->info->CheckComposite && + !(*pExaScr->info->CheckComposite) (op, pSrc, pMask, pDst)) + { + return -1; + } + + if (!miComputeCompositeRegion (®ion, pSrc, pMask, pDst, + xSrc, ySrc, xMask, yMask, xDst, yDst, + width, height)) + return 1; + + exaGetDrawableDeltas (pDst->pDrawable, pDstPix, &dst_off_x, &dst_off_y); + + RegionTranslate(®ion, dst_off_x, dst_off_y); + + if (pExaScr->do_migration) { + ExaMigrationRec pixmaps[3]; + int i = 0; + + pixmaps[i].as_dst = TRUE; + pixmaps[i].as_src = exaOpReadsDestination(op); + pixmaps[i].pPix = pDstPix; + pixmaps[i].pReg = pixmaps[0].as_src ? NULL : ®ion; + i++; + + if (pSrcPix) { + pixmaps[i].as_dst = FALSE; + pixmaps[i].as_src = TRUE; + pixmaps[i].pPix = pSrcPix; + pixmaps[i].pReg = NULL; + i++; + } + + if (pMaskPix) { + pixmaps[i].as_dst = FALSE; + pixmaps[i].as_src = TRUE; + pixmaps[i].pPix = pMaskPix; + pixmaps[i].pReg = NULL; + i++; + } + + exaDoMigration(pixmaps, i, TRUE); + } + + if (pSrcPix) { + pSrcPix = exaGetOffscreenPixmap (pSrc->pDrawable, &src_off_x, &src_off_y); + if (!pSrcPix) { + RegionUninit(®ion); + return 0; + } + } + + if (pMaskPix) { + pMaskPix = exaGetOffscreenPixmap (pMask->pDrawable, &mask_off_x, + &mask_off_y); + if (!pMaskPix) { + RegionUninit(®ion); + return 0; + } + } + + if (!exaPixmapHasGpuCopy(pDstPix)) { + RegionUninit(®ion); + return 0; + } + + if (!(*pExaScr->info->PrepareComposite) (op, pSrc, pMask, pDst, pSrcPix, + pMaskPix, pDstPix)) + { + RegionUninit(®ion); + return -1; + } + + nbox = RegionNumRects(®ion); + pbox = RegionRects(®ion); + + xMask = xMask + mask_off_x - xDst - dst_off_x; + yMask = yMask + mask_off_y - yDst - dst_off_y; + + xSrc = xSrc + src_off_x - xDst - dst_off_x; + ySrc = ySrc + src_off_y - yDst - dst_off_y; + + while (nbox--) + { + (*pExaScr->info->Composite) (pDstPix, + pbox->x1 + xSrc, + pbox->y1 + ySrc, + pbox->x1 + xMask, + pbox->y1 + yMask, + pbox->x1, + pbox->y1, + pbox->x2 - pbox->x1, + pbox->y2 - pbox->y1); + pbox++; + } + (*pExaScr->info->DoneComposite) (pDstPix); + exaMarkSync(pDst->pDrawable->pScreen); + + RegionUninit(®ion); + return 1; +} + +/** + * exaTryMagicTwoPassCompositeHelper implements PictOpOver using two passes of + * simpler operations PictOpOutReverse and PictOpAdd. Mainly used for component + * alpha and limited 1-tmu cards. + * + * From http://anholt.livejournal.com/32058.html: + * + * The trouble is that component-alpha rendering requires two different sources + * for blending: one for the source value to the blender, which is the + * per-channel multiplication of source and mask, and one for the source alpha + * for multiplying with the destination channels, which is the multiplication + * of the source channels by the mask alpha. So the equation for Over is: + * + * dst.A = src.A * mask.A + (1 - (src.A * mask.A)) * dst.A + * dst.R = src.R * mask.R + (1 - (src.A * mask.R)) * dst.R + * dst.G = src.G * mask.G + (1 - (src.A * mask.G)) * dst.G + * dst.B = src.B * mask.B + (1 - (src.A * mask.B)) * dst.B + * + * But we can do some simpler operations, right? How about PictOpOutReverse, + * which has a source factor of 0 and dest factor of (1 - source alpha). We + * can get the source alpha value (srca.X = src.A * mask.X) out of the texture + * blenders pretty easily. So we can do a component-alpha OutReverse, which + * gets us: + * + * dst.A = 0 + (1 - (src.A * mask.A)) * dst.A + * dst.R = 0 + (1 - (src.A * mask.R)) * dst.R + * dst.G = 0 + (1 - (src.A * mask.G)) * dst.G + * dst.B = 0 + (1 - (src.A * mask.B)) * dst.B + * + * OK. And if an op doesn't use the source alpha value for the destination + * factor, then we can do the channel multiplication in the texture blenders + * to get the source value, and ignore the source alpha that we wouldn't use. + * We've supported this in the Radeon driver for a long time. An example would + * be PictOpAdd, which does: + * + * dst.A = src.A * mask.A + dst.A + * dst.R = src.R * mask.R + dst.R + * dst.G = src.G * mask.G + dst.G + * dst.B = src.B * mask.B + dst.B + * + * Hey, this looks good! If we do a PictOpOutReverse and then a PictOpAdd right + * after it, we get: + * + * dst.A = src.A * mask.A + ((1 - (src.A * mask.A)) * dst.A) + * dst.R = src.R * mask.R + ((1 - (src.A * mask.R)) * dst.R) + * dst.G = src.G * mask.G + ((1 - (src.A * mask.G)) * dst.G) + * dst.B = src.B * mask.B + ((1 - (src.A * mask.B)) * dst.B) + */ + +static int +exaTryMagicTwoPassCompositeHelper(CARD8 op, + PicturePtr pSrc, + PicturePtr pMask, + PicturePtr pDst, + INT16 xSrc, + INT16 ySrc, + INT16 xMask, + INT16 yMask, + INT16 xDst, + INT16 yDst, + CARD16 width, + CARD16 height) +{ + ExaScreenPriv (pDst->pDrawable->pScreen); + + assert(op == PictOpOver); + + if (pExaScr->info->CheckComposite && + (!(*pExaScr->info->CheckComposite)(PictOpOutReverse, pSrc, pMask, + pDst) || + !(*pExaScr->info->CheckComposite)(PictOpAdd, pSrc, pMask, pDst))) + { + return -1; + } + + /* Now, we think we should be able to accelerate this operation. First, + * composite the destination to be the destination times the source alpha + * factors. + */ + exaComposite(PictOpOutReverse, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask, + xDst, yDst, width, height); + + /* Then, add in the source value times the destination alpha factors (1.0). + */ + exaComposite(PictOpAdd, pSrc, pMask, pDst, xSrc, ySrc, xMask, yMask, + xDst, yDst, width, height); + + return 1; +} + +void +exaComposite(CARD8 op, + PicturePtr pSrc, + PicturePtr pMask, + PicturePtr pDst, + INT16 xSrc, + INT16 ySrc, + INT16 xMask, + INT16 yMask, + INT16 xDst, + INT16 yDst, + CARD16 width, + CARD16 height) +{ + ExaScreenPriv (pDst->pDrawable->pScreen); + int ret = -1; + Bool saveSrcRepeat = pSrc->repeat; + Bool saveMaskRepeat = pMask ? pMask->repeat : 0; + RegionRec region; + + if (pExaScr->swappedOut) + goto fallback; + + /* Remove repeat in source if useless */ + if (pSrc->pDrawable && pSrc->repeat && !pSrc->transform && xSrc >= 0 && + (xSrc + width) <= pSrc->pDrawable->width && ySrc >= 0 && + (ySrc + height) <= pSrc->pDrawable->height) + pSrc->repeat = 0; + + if (!pMask && !pSrc->alphaMap && !pDst->alphaMap && + (op == PictOpSrc || (op == PictOpOver && !PICT_FORMAT_A(pSrc->format)))) + { + if (pSrc->pDrawable ? + (pSrc->pDrawable->width == 1 && pSrc->pDrawable->height == 1 && + pSrc->repeat) : + (pSrc->pSourcePict->type == SourcePictTypeSolidFill)) + { + ret = exaTryDriverSolidFill(pSrc, pDst, xSrc, ySrc, xDst, yDst, + width, height); + if (ret == 1) + goto done; + } else if (pSrc->pDrawable && !pSrc->transform && + ((op == PictOpSrc && + (pSrc->format == pDst->format || + (PICT_FORMAT_COLOR(pDst->format) && + PICT_FORMAT_COLOR(pSrc->format) && + pDst->format == PICT_FORMAT(PICT_FORMAT_BPP(pSrc->format), + PICT_FORMAT_TYPE(pSrc->format), + 0, + PICT_FORMAT_R(pSrc->format), + PICT_FORMAT_G(pSrc->format), + PICT_FORMAT_B(pSrc->format))))) || + (op == PictOpOver && pSrc->format == pDst->format && + !PICT_FORMAT_A(pSrc->format)))) + { + if (!pSrc->repeat && xSrc >= 0 && ySrc >= 0 && + (xSrc + width <= pSrc->pDrawable->width) && + (ySrc + height <= pSrc->pDrawable->height)) + { + Bool ret; + xDst += pDst->pDrawable->x; + yDst += pDst->pDrawable->y; + xSrc += pSrc->pDrawable->x; + ySrc += pSrc->pDrawable->y; + + if (!miComputeCompositeRegion (®ion, pSrc, pMask, pDst, + xSrc, ySrc, xMask, yMask, xDst, + yDst, width, height)) + goto done; + + ret = exaHWCopyNtoN(pSrc->pDrawable, pDst->pDrawable, NULL, + RegionRects(®ion), RegionNumRects(®ion), + xSrc - xDst, ySrc - yDst, FALSE, FALSE); + RegionUninit(®ion); + + /* Reset values to their original values. */ + xDst -= pDst->pDrawable->x; + yDst -= pDst->pDrawable->y; + xSrc -= pSrc->pDrawable->x; + ySrc -= pSrc->pDrawable->y; + + if (!ret) + goto fallback; + + goto done; + } + + if (pSrc->repeat && pSrc->repeatType == RepeatNormal && + pSrc->pDrawable->type == DRAWABLE_PIXMAP) + { + DDXPointRec patOrg; + + /* Let's see if the driver can do the repeat in one go */ + if (pExaScr->info->PrepareComposite && !pSrc->alphaMap && + !pDst->alphaMap) + { + ret = exaTryDriverComposite(op, pSrc, pMask, pDst, xSrc, + ySrc, xMask, yMask, xDst, yDst, + width, height); + if (ret == 1) + goto done; + } + + /* Now see if we can use exaFillRegionTiled() */ + xDst += pDst->pDrawable->x; + yDst += pDst->pDrawable->y; + xSrc += pSrc->pDrawable->x; + ySrc += pSrc->pDrawable->y; + + if (!miComputeCompositeRegion (®ion, pSrc, pMask, pDst, xSrc, + ySrc, xMask, yMask, xDst, yDst, + width, height)) + goto done; + + /* pattern origin is the point in the destination drawable + * corresponding to (0,0) in the source */ + patOrg.x = xDst - xSrc; + patOrg.y = yDst - ySrc; + + ret = exaFillRegionTiled(pDst->pDrawable, ®ion, + (PixmapPtr)pSrc->pDrawable, + &patOrg, FB_ALLONES, GXcopy, CT_NONE); + + RegionUninit(®ion); + + if (ret) + goto done; + + /* Let's be correct and restore the variables to their original state. */ + xDst -= pDst->pDrawable->x; + yDst -= pDst->pDrawable->y; + xSrc -= pSrc->pDrawable->x; + ySrc -= pSrc->pDrawable->y; + } + } + } + + /* Remove repeat in mask if useless */ + if (pMask && pMask->pDrawable && pMask->repeat && !pMask->transform && + xMask >= 0 && (xMask + width) <= pMask->pDrawable->width && + yMask >= 0 && (yMask + height) <= pMask->pDrawable->height) + pMask->repeat = 0; + + if (pExaScr->info->PrepareComposite && + !pSrc->alphaMap && (!pMask || !pMask->alphaMap) && !pDst->alphaMap) + { + Bool isSrcSolid; + + ret = exaTryDriverComposite(op, pSrc, pMask, pDst, xSrc, ySrc, xMask, + yMask, xDst, yDst, width, height); + if (ret == 1) + goto done; + + /* For generic masks and solid src pictures, mach64 can do Over in two + * passes, similar to the component-alpha case. + */ + isSrcSolid = pSrc->pDrawable ? + (pSrc->pDrawable->width == 1 && pSrc->pDrawable->height == 1 && + pSrc->repeat) : + (pSrc->pSourcePict->type == SourcePictTypeSolidFill); + + /* If we couldn't do the Composite in a single pass, and it was a + * component-alpha Over, see if we can do it in two passes with + * an OutReverse and then an Add. + */ + if (ret == -1 && op == PictOpOver && pMask && + (pMask->componentAlpha || isSrcSolid)) { + ret = exaTryMagicTwoPassCompositeHelper(op, pSrc, pMask, pDst, + xSrc, ySrc, + xMask, yMask, xDst, yDst, + width, height); + if (ret == 1) + goto done; + } + } + +fallback: +#if DEBUG_TRACE_FALL + exaPrintCompositeFallback (op, pSrc, pMask, pDst); +#endif + + ExaCheckComposite (op, pSrc, pMask, pDst, xSrc, ySrc, + xMask, yMask, xDst, yDst, width, height); + +done: + pSrc->repeat = saveSrcRepeat; + if (pMask) + pMask->repeat = saveMaskRepeat; +} + +/** + * Same as miCreateAlphaPicture, except it uses ExaCheckPolyFillRect instead + * of PolyFillRect to initialize the pixmap after creating it, to prevent + * the pixmap from being migrated. + * + * See the comments about exaTrapezoids and exaTriangles. + */ +static PicturePtr +exaCreateAlphaPicture (ScreenPtr pScreen, + PicturePtr pDst, + PictFormatPtr pPictFormat, + CARD16 width, + CARD16 height) +{ + PixmapPtr pPixmap; + PicturePtr pPicture; + GCPtr pGC; + int error; + xRectangle rect; + + if (width > 32767 || height > 32767) + return 0; + + if (!pPictFormat) + { + if (pDst->polyEdge == PolyEdgeSharp) + pPictFormat = PictureMatchFormat (pScreen, 1, PICT_a1); + else + pPictFormat = PictureMatchFormat (pScreen, 8, PICT_a8); + if (!pPictFormat) + return 0; + } + + pPixmap = (*pScreen->CreatePixmap) (pScreen, width, height, + pPictFormat->depth, 0); + if (!pPixmap) + return 0; + pGC = GetScratchGC (pPixmap->drawable.depth, pScreen); + if (!pGC) + { + (*pScreen->DestroyPixmap) (pPixmap); + return 0; + } + ValidateGC (&pPixmap->drawable, pGC); + rect.x = 0; + rect.y = 0; + rect.width = width; + rect.height = height; + ExaCheckPolyFillRect (&pPixmap->drawable, pGC, 1, &rect); + exaPixmapDirty (pPixmap, 0, 0, width, height); + FreeScratchGC (pGC); + pPicture = CreatePicture (0, &pPixmap->drawable, pPictFormat, + 0, 0, serverClient, &error); + (*pScreen->DestroyPixmap) (pPixmap); + return pPicture; +} + +/** + * exaTrapezoids is essentially a copy of miTrapezoids that uses + * exaCreateAlphaPicture instead of miCreateAlphaPicture. + * + * The problem with miCreateAlphaPicture is that it calls PolyFillRect + * to initialize the contents after creating the pixmap, which + * causes the pixmap to be moved in for acceleration. The subsequent + * call to RasterizeTrapezoid won't be accelerated however, which + * forces the pixmap to be moved out again. + * + * exaCreateAlphaPicture avoids this roundtrip by using ExaCheckPolyFillRect + * to initialize the contents. + */ +void +exaTrapezoids (CARD8 op, PicturePtr pSrc, PicturePtr pDst, + PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, + int ntrap, xTrapezoid *traps) +{ + ScreenPtr pScreen = pDst->pDrawable->pScreen; + PictureScreenPtr ps = GetPictureScreen(pScreen); + BoxRec bounds; + + if (maskFormat) { + PicturePtr pPicture; + INT16 xDst, yDst; + INT16 xRel, yRel; + + miTrapezoidBounds (ntrap, traps, &bounds); + + if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2) + return; + + xDst = traps[0].left.p1.x >> 16; + yDst = traps[0].left.p1.y >> 16; + + pPicture = exaCreateAlphaPicture (pScreen, pDst, maskFormat, + bounds.x2 - bounds.x1, + bounds.y2 - bounds.y1); + if (!pPicture) + return; + + exaPrepareAccess(pPicture->pDrawable, EXA_PREPARE_DEST); + for (; ntrap; ntrap--, traps++) + (*ps->RasterizeTrapezoid) (pPicture, traps, + -bounds.x1, -bounds.y1); + exaFinishAccess(pPicture->pDrawable, EXA_PREPARE_DEST); + + xRel = bounds.x1 + xSrc - xDst; + yRel = bounds.y1 + ySrc - yDst; + CompositePicture (op, pSrc, pPicture, pDst, + xRel, yRel, 0, 0, bounds.x1, bounds.y1, + bounds.x2 - bounds.x1, + bounds.y2 - bounds.y1); + FreePicture (pPicture, 0); + } else { + if (pDst->polyEdge == PolyEdgeSharp) + maskFormat = PictureMatchFormat (pScreen, 1, PICT_a1); + else + maskFormat = PictureMatchFormat (pScreen, 8, PICT_a8); + for (; ntrap; ntrap--, traps++) + exaTrapezoids (op, pSrc, pDst, maskFormat, xSrc, ySrc, 1, traps); + } +} + +/** + * exaTriangles is essentially a copy of miTriangles that uses + * exaCreateAlphaPicture instead of miCreateAlphaPicture. + * + * The problem with miCreateAlphaPicture is that it calls PolyFillRect + * to initialize the contents after creating the pixmap, which + * causes the pixmap to be moved in for acceleration. The subsequent + * call to AddTriangles won't be accelerated however, which forces the pixmap + * to be moved out again. + * + * exaCreateAlphaPicture avoids this roundtrip by using ExaCheckPolyFillRect + * to initialize the contents. + */ +void +exaTriangles (CARD8 op, PicturePtr pSrc, PicturePtr pDst, + PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, + int ntri, xTriangle *tris) +{ + ScreenPtr pScreen = pDst->pDrawable->pScreen; + PictureScreenPtr ps = GetPictureScreen(pScreen); + BoxRec bounds; + + if (maskFormat) { + PicturePtr pPicture; + INT16 xDst, yDst; + INT16 xRel, yRel; + + miTriangleBounds (ntri, tris, &bounds); + + if (bounds.y1 >= bounds.y2 || bounds.x1 >= bounds.x2) + return; + + xDst = tris[0].p1.x >> 16; + yDst = tris[0].p1.y >> 16; + + pPicture = exaCreateAlphaPicture (pScreen, pDst, maskFormat, + bounds.x2 - bounds.x1, + bounds.y2 - bounds.y1); + if (!pPicture) + return; + + exaPrepareAccess(pPicture->pDrawable, EXA_PREPARE_DEST); + (*ps->AddTriangles) (pPicture, -bounds.x1, -bounds.y1, ntri, tris); + exaFinishAccess(pPicture->pDrawable, EXA_PREPARE_DEST); + + xRel = bounds.x1 + xSrc - xDst; + yRel = bounds.y1 + ySrc - yDst; + CompositePicture (op, pSrc, pPicture, pDst, + xRel, yRel, 0, 0, bounds.x1, bounds.y1, + bounds.x2 - bounds.x1, bounds.y2 - bounds.y1); + FreePicture (pPicture, 0); + } else { + if (pDst->polyEdge == PolyEdgeSharp) + maskFormat = PictureMatchFormat (pScreen, 1, PICT_a1); + else + maskFormat = PictureMatchFormat (pScreen, 8, PICT_a8); + + for (; ntri; ntri--, tris++) + exaTriangles (op, pSrc, pDst, maskFormat, xSrc, ySrc, 1, tris); + } +} diff --git a/exa/exa_unaccel.c b/exa/exa_unaccel.c new file mode 100644 index 0000000..bd533c4 --- /dev/null +++ b/exa/exa_unaccel.c @@ -0,0 +1,765 @@ +/* + * + * Copyright © 1999 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Keith Packard not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Keith Packard makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +#include "exa_priv.h" + +#include "mipict.h" + +/* + * These functions wrap the low-level fb rendering functions and + * synchronize framebuffer/accelerated drawing by stalling until + * the accelerator is idle + */ + +/** + * Calls exaPrepareAccess with EXA_PREPARE_SRC for the tile, if that is the + * current fill style. + * + * Solid doesn't use an extra pixmap source, and Stippled/OpaqueStippled are + * 1bpp and never in fb, so we don't worry about them. + * We should worry about them for completeness sake and going forward. + */ +void +exaPrepareAccessGC(GCPtr pGC) +{ + if (pGC->stipple) + exaPrepareAccess(&pGC->stipple->drawable, EXA_PREPARE_MASK); + if (pGC->fillStyle == FillTiled) + exaPrepareAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_SRC); +} + +/** + * Finishes access to the tile in the GC, if used. + */ +void +exaFinishAccessGC(GCPtr pGC) +{ + if (pGC->fillStyle == FillTiled) + exaFinishAccess(&pGC->tile.pixmap->drawable, EXA_PREPARE_SRC); + if (pGC->stipple) + exaFinishAccess(&pGC->stipple->drawable, EXA_PREPARE_MASK); +} + +#if DEBUG_TRACE_FALL +char +exaDrawableLocation(DrawablePtr pDrawable) +{ + return exaDrawableIsOffscreen(pDrawable) ? 's' : 'm'; +} +#endif /* DEBUG_TRACE_FALL */ + +void +ExaCheckFillSpans (DrawablePtr pDrawable, GCPtr pGC, int nspans, + DDXPointPtr ppt, int *pwidth, int fSorted) +{ + EXA_PRE_FALLBACK_GC(pGC); + EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable))); + exaPrepareAccess (pDrawable, EXA_PREPARE_DEST); + exaPrepareAccessGC (pGC); + pGC->ops->FillSpans (pDrawable, pGC, nspans, ppt, pwidth, fSorted); + exaFinishAccessGC (pGC); + exaFinishAccess (pDrawable, EXA_PREPARE_DEST); + EXA_POST_FALLBACK_GC(pGC); +} + +void +ExaCheckSetSpans (DrawablePtr pDrawable, GCPtr pGC, char *psrc, + DDXPointPtr ppt, int *pwidth, int nspans, int fSorted) +{ + EXA_PRE_FALLBACK_GC(pGC); + EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable))); + exaPrepareAccess (pDrawable, EXA_PREPARE_DEST); + pGC->ops->SetSpans (pDrawable, pGC, psrc, ppt, pwidth, nspans, fSorted); + exaFinishAccess (pDrawable, EXA_PREPARE_DEST); + EXA_POST_FALLBACK_GC(pGC); +} + +void +ExaCheckPutImage (DrawablePtr pDrawable, GCPtr pGC, int depth, + int x, int y, int w, int h, int leftPad, int format, + char *bits) +{ + PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable); + ExaPixmapPriv(pPixmap); + + EXA_PRE_FALLBACK_GC(pGC); + EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable))); + if (!pExaScr->prepare_access_reg || !pExaPixmap->pDamage || + exaGCReadsDestination(pDrawable, pGC->planemask, pGC->fillStyle, + pGC->alu, pGC->clientClipType)) + exaPrepareAccess (pDrawable, EXA_PREPARE_DEST); + else + pExaScr->prepare_access_reg(pPixmap, EXA_PREPARE_DEST, + DamagePendingRegion(pExaPixmap->pDamage)); + pGC->ops->PutImage (pDrawable, pGC, depth, x, y, w, h, leftPad, format, bits); + exaFinishAccess (pDrawable, EXA_PREPARE_DEST); + EXA_POST_FALLBACK_GC(pGC); +} + +void +ExaCheckCopyNtoN (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC, + BoxPtr pbox, int nbox, int dx, int dy, Bool reverse, + Bool upsidedown, Pixel bitplane, void *closure) +{ + RegionRec reg; + int xoff, yoff; + EXA_PRE_FALLBACK_GC(pGC); + EXA_FALLBACK(("from %p to %p (%c,%c)\n", pSrc, pDst, + exaDrawableLocation(pSrc), exaDrawableLocation(pDst))); + + if (pExaScr->prepare_access_reg) { + PixmapPtr pPixmap = exaGetDrawablePixmap(pSrc); + + exaGetDrawableDeltas(pSrc, pPixmap, &xoff, &yoff); + RegionInit(®, pbox, nbox); + RegionTranslate(®, xoff + dx, yoff + dy); + pExaScr->prepare_access_reg(pPixmap, EXA_PREPARE_SRC, ®); + RegionUninit(®); + } else + exaPrepareAccess (pSrc, EXA_PREPARE_SRC); + + if (pExaScr->prepare_access_reg && + !exaGCReadsDestination(pDst, pGC->planemask, pGC->fillStyle, + pGC->alu, pGC->clientClipType)) { + PixmapPtr pPixmap = exaGetDrawablePixmap(pDst); + + exaGetDrawableDeltas(pSrc, pPixmap, &xoff, &yoff); + RegionInit(®, pbox, nbox); + RegionTranslate(®, xoff, yoff); + pExaScr->prepare_access_reg(pPixmap, EXA_PREPARE_DEST, ®); + RegionUninit(®); + } else + exaPrepareAccess (pDst, EXA_PREPARE_DEST); + + /* This will eventually call fbCopyNtoN, with some calculation overhead. */ + while (nbox--) { + pGC->ops->CopyArea (pSrc, pDst, pGC, pbox->x1 - pSrc->x + dx, pbox->y1 - pSrc->y + dy, + pbox->x2 - pbox->x1, pbox->y2 - pbox->y1, pbox->x1 - pDst->x, pbox->y1 - pDst->y); + pbox++; + } + exaFinishAccess (pSrc, EXA_PREPARE_SRC); + exaFinishAccess (pDst, EXA_PREPARE_DEST); + EXA_POST_FALLBACK_GC(pGC); +} + +static void +ExaFallbackPrepareReg(DrawablePtr pDrawable, + GCPtr pGC, + int x, int y, int width, int height, + int index, Bool checkReads) +{ + ScreenPtr pScreen = pDrawable->pScreen; + ExaScreenPriv(pScreen); + + if (pExaScr->prepare_access_reg && + !(checkReads && exaGCReadsDestination(pDrawable, + pGC->planemask, + pGC->fillStyle, + pGC->alu, + pGC->clientClipType))) { + BoxRec box; + RegionRec reg; + int xoff, yoff; + PixmapPtr pPixmap = exaGetDrawablePixmap(pDrawable); + + exaGetDrawableDeltas(pDrawable, pPixmap, &xoff, &yoff); + box.x1 = pDrawable->x + x + xoff; + box.y1 = pDrawable->y + y + yoff; + box.x2 = box.x1 + width; + box.y2 = box.y1 + height; + + RegionInit(®, &box, 1); + pExaScr->prepare_access_reg(pPixmap, index, ®); + RegionUninit(®); + } else + exaPrepareAccess(pDrawable, index); +} + + +RegionPtr +ExaCheckCopyArea (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC, + int srcx, int srcy, int w, int h, int dstx, int dsty) +{ + RegionPtr ret; + + EXA_PRE_FALLBACK_GC(pGC); + EXA_FALLBACK(("from %p to %p (%c,%c)\n", pSrc, pDst, + exaDrawableLocation(pSrc), exaDrawableLocation(pDst))); + ExaFallbackPrepareReg(pSrc, pGC, srcx, srcy, w, h, + EXA_PREPARE_SRC, FALSE); + ExaFallbackPrepareReg(pDst, pGC, dstx, dsty, w, h, + EXA_PREPARE_DEST, TRUE); + ret = pGC->ops->CopyArea (pSrc, pDst, pGC, srcx, srcy, w, h, dstx, dsty); + exaFinishAccess (pSrc, EXA_PREPARE_SRC); + exaFinishAccess (pDst, EXA_PREPARE_DEST); + EXA_POST_FALLBACK_GC(pGC); + + return ret; +} + +RegionPtr +ExaCheckCopyPlane (DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC, + int srcx, int srcy, int w, int h, int dstx, int dsty, + unsigned long bitPlane) +{ + RegionPtr ret; + + EXA_PRE_FALLBACK_GC(pGC); + EXA_FALLBACK(("from %p to %p (%c,%c)\n", pSrc, pDst, + exaDrawableLocation(pSrc), exaDrawableLocation(pDst))); + ExaFallbackPrepareReg(pSrc, pGC, srcx, srcy, w, h, + EXA_PREPARE_SRC, FALSE); + ExaFallbackPrepareReg(pDst, pGC, dstx, dsty, w, h, + EXA_PREPARE_DEST, TRUE); + ret = pGC->ops->CopyPlane (pSrc, pDst, pGC, srcx, srcy, w, h, dstx, dsty, + bitPlane); + exaFinishAccess (pSrc, EXA_PREPARE_SRC); + exaFinishAccess (pDst, EXA_PREPARE_DEST); + EXA_POST_FALLBACK_GC(pGC); + + return ret; +} + +void +ExaCheckPolyPoint (DrawablePtr pDrawable, GCPtr pGC, int mode, int npt, + DDXPointPtr pptInit) +{ + EXA_PRE_FALLBACK_GC(pGC); + EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable))); + exaPrepareAccess (pDrawable, EXA_PREPARE_DEST); + pGC->ops->PolyPoint (pDrawable, pGC, mode, npt, pptInit); + exaFinishAccess (pDrawable, EXA_PREPARE_DEST); + EXA_POST_FALLBACK_GC(pGC); +} + +void +ExaCheckPolylines (DrawablePtr pDrawable, GCPtr pGC, + int mode, int npt, DDXPointPtr ppt) +{ + EXA_PRE_FALLBACK_GC(pGC); + EXA_FALLBACK(("to %p (%c), width %d, mode %d, count %d\n", + pDrawable, exaDrawableLocation(pDrawable), + pGC->lineWidth, mode, npt)); + + exaPrepareAccess (pDrawable, EXA_PREPARE_DEST); + exaPrepareAccessGC (pGC); + pGC->ops->Polylines (pDrawable, pGC, mode, npt, ppt); + exaFinishAccessGC (pGC); + exaFinishAccess (pDrawable, EXA_PREPARE_DEST); + EXA_POST_FALLBACK_GC(pGC); +} + +void +ExaCheckPolySegment (DrawablePtr pDrawable, GCPtr pGC, + int nsegInit, xSegment *pSegInit) +{ + EXA_PRE_FALLBACK_GC(pGC); + EXA_FALLBACK(("to %p (%c) width %d, count %d\n", pDrawable, + exaDrawableLocation(pDrawable), pGC->lineWidth, nsegInit)); + + exaPrepareAccess (pDrawable, EXA_PREPARE_DEST); + exaPrepareAccessGC (pGC); + pGC->ops->PolySegment (pDrawable, pGC, nsegInit, pSegInit); + exaFinishAccessGC (pGC); + exaFinishAccess (pDrawable, EXA_PREPARE_DEST); + EXA_POST_FALLBACK_GC(pGC); +} + +void +ExaCheckPolyArc (DrawablePtr pDrawable, GCPtr pGC, + int narcs, xArc *pArcs) +{ + EXA_PRE_FALLBACK_GC(pGC); + EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable))); + + exaPrepareAccess (pDrawable, EXA_PREPARE_DEST); + exaPrepareAccessGC (pGC); + pGC->ops->PolyArc (pDrawable, pGC, narcs, pArcs); + exaFinishAccessGC (pGC); + exaFinishAccess (pDrawable, EXA_PREPARE_DEST); + EXA_POST_FALLBACK_GC(pGC); +} + +void +ExaCheckPolyFillRect (DrawablePtr pDrawable, GCPtr pGC, + int nrect, xRectangle *prect) +{ + EXA_PRE_FALLBACK_GC(pGC); + EXA_FALLBACK(("to %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable))); + + exaPrepareAccess (pDrawable, EXA_PREPARE_DEST); + exaPrepareAccessGC (pGC); + pGC->ops->PolyFillRect (pDrawable, pGC, nrect, prect); + exaFinishAccessGC (pGC); + exaFinishAccess (pDrawable, EXA_PREPARE_DEST); + EXA_POST_FALLBACK_GC(pGC); +} + +void +ExaCheckImageGlyphBlt (DrawablePtr pDrawable, GCPtr pGC, + int x, int y, unsigned int nglyph, + CharInfoPtr *ppci, pointer pglyphBase) +{ + EXA_PRE_FALLBACK_GC(pGC); + EXA_FALLBACK(("to %p (%c)\n", pDrawable, + exaDrawableLocation(pDrawable))); + exaPrepareAccess (pDrawable, EXA_PREPARE_DEST); + exaPrepareAccessGC (pGC); + pGC->ops->ImageGlyphBlt (pDrawable, pGC, x, y, nglyph, ppci, pglyphBase); + exaFinishAccessGC (pGC); + exaFinishAccess (pDrawable, EXA_PREPARE_DEST); + EXA_POST_FALLBACK_GC(pGC); +} + +void +ExaCheckPolyGlyphBlt (DrawablePtr pDrawable, GCPtr pGC, + int x, int y, unsigned int nglyph, + CharInfoPtr *ppci, pointer pglyphBase) +{ + EXA_PRE_FALLBACK_GC(pGC); + EXA_FALLBACK(("to %p (%c), style %d alu %d\n", pDrawable, + exaDrawableLocation(pDrawable), pGC->fillStyle, pGC->alu)); + exaPrepareAccess (pDrawable, EXA_PREPARE_DEST); + exaPrepareAccessGC (pGC); + pGC->ops->PolyGlyphBlt (pDrawable, pGC, x, y, nglyph, ppci, pglyphBase); + exaFinishAccessGC (pGC); + exaFinishAccess (pDrawable, EXA_PREPARE_DEST); + EXA_POST_FALLBACK_GC(pGC); +} + +void +ExaCheckPushPixels (GCPtr pGC, PixmapPtr pBitmap, + DrawablePtr pDrawable, + int w, int h, int x, int y) +{ + EXA_PRE_FALLBACK_GC(pGC); + EXA_FALLBACK(("from %p to %p (%c,%c)\n", pBitmap, pDrawable, + exaDrawableLocation(&pBitmap->drawable), + exaDrawableLocation(pDrawable))); + ExaFallbackPrepareReg(pDrawable, pGC, x, y, w, h, + EXA_PREPARE_DEST, TRUE); + ExaFallbackPrepareReg(&pBitmap->drawable, pGC, 0, 0, w, h, + EXA_PREPARE_SRC, FALSE); + exaPrepareAccessGC (pGC); + pGC->ops->PushPixels (pGC, pBitmap, pDrawable, w, h, x, y); + exaFinishAccessGC (pGC); + exaFinishAccess (&pBitmap->drawable, EXA_PREPARE_SRC); + exaFinishAccess (pDrawable, EXA_PREPARE_DEST); + EXA_POST_FALLBACK_GC(pGC); +} + +void +ExaCheckCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc) +{ + DrawablePtr pDrawable = &pWin->drawable; + ScreenPtr pScreen = pDrawable->pScreen; + EXA_PRE_FALLBACK(pScreen); + EXA_FALLBACK(("from %p\n", pWin)); + + /* Only need the source bits, the destination region will be overwritten */ + if (pExaScr->prepare_access_reg) { + PixmapPtr pPixmap = pScreen->GetWindowPixmap(pWin); + int xoff, yoff; + + exaGetDrawableDeltas(&pWin->drawable, pPixmap, &xoff, &yoff); + RegionTranslate(prgnSrc, xoff, yoff); + pExaScr->prepare_access_reg(pPixmap, EXA_PREPARE_SRC, prgnSrc); + RegionTranslate(prgnSrc, -xoff, -yoff); + } else + exaPrepareAccess(pDrawable, EXA_PREPARE_SRC); + + swap(pExaScr, pScreen, CopyWindow); + pScreen->CopyWindow (pWin, ptOldOrg, prgnSrc); + swap(pExaScr, pScreen, CopyWindow); + exaFinishAccess (pDrawable, EXA_PREPARE_SRC); + EXA_POST_FALLBACK(pScreen); +} + +void +ExaCheckGetImage(DrawablePtr pDrawable, int x, int y, int w, int h, + unsigned int format, unsigned long planeMask, char *d) +{ + ScreenPtr pScreen = pDrawable->pScreen; + EXA_PRE_FALLBACK(pScreen); + EXA_FALLBACK(("from %p (%c)\n", pDrawable, + exaDrawableLocation(pDrawable))); + + ExaFallbackPrepareReg(pDrawable, NULL, x, y, w, h, + EXA_PREPARE_SRC, FALSE); + swap(pExaScr, pScreen, GetImage); + pScreen->GetImage (pDrawable, x, y, w, h, format, planeMask, d); + swap(pExaScr, pScreen, GetImage); + exaFinishAccess (pDrawable, EXA_PREPARE_SRC); + EXA_POST_FALLBACK(pScreen); +} + +void +ExaCheckGetSpans (DrawablePtr pDrawable, + int wMax, + DDXPointPtr ppt, + int *pwidth, + int nspans, + char *pdstStart) +{ + ScreenPtr pScreen = pDrawable->pScreen; + + EXA_PRE_FALLBACK(pScreen); + EXA_FALLBACK(("from %p (%c)\n", pDrawable, exaDrawableLocation(pDrawable))); + exaPrepareAccess (pDrawable, EXA_PREPARE_SRC); + swap(pExaScr, pScreen, GetSpans); + pScreen->GetSpans (pDrawable, wMax, ppt, pwidth, nspans, pdstStart); + swap(pExaScr, pScreen, GetSpans); + exaFinishAccess (pDrawable, EXA_PREPARE_SRC); + EXA_POST_FALLBACK(pScreen); +} + +static void +ExaSrcValidate(DrawablePtr pDrawable, + int x, + int y, + int width, + int height, + unsigned int subWindowMode) +{ + ScreenPtr pScreen = pDrawable->pScreen; + ExaScreenPriv(pScreen); + PixmapPtr pPix = exaGetDrawablePixmap (pDrawable); + BoxRec box; + RegionRec reg; + RegionPtr dst; + int xoff, yoff; + + exaGetDrawableDeltas(pDrawable, pPix, &xoff, &yoff); + + box.x1 = x + xoff; + box.y1 = y + yoff; + box.x2 = box.x1 + width; + box.y2 = box.y1 + height; + + dst = (pExaScr->srcPix == pPix) ? &pExaScr->srcReg : + &pExaScr->maskReg; + + RegionInit(®, &box, 1); + RegionUnion(dst, dst, ®); + RegionUninit(®); + + if (pExaScr->SavedSourceValidate) { + swap(pExaScr, pScreen, SourceValidate); + pScreen->SourceValidate(pDrawable, x, y, width, height, subWindowMode); + swap(pExaScr, pScreen, SourceValidate); + } +} + +static Bool +ExaPrepareCompositeReg(ScreenPtr pScreen, + CARD8 op, + PicturePtr pSrc, + PicturePtr pMask, + PicturePtr pDst, + INT16 xSrc, + INT16 ySrc, + INT16 xMask, + INT16 yMask, + INT16 xDst, + INT16 yDst, + CARD16 width, + CARD16 height) +{ + RegionRec region; + RegionPtr dstReg = NULL; + RegionPtr srcReg = NULL; + RegionPtr maskReg = NULL; + PixmapPtr pSrcPix = NULL; + PixmapPtr pMaskPix = NULL; + PixmapPtr pDstPix; + ExaScreenPriv(pScreen); + Bool ret; + + + RegionNull(®ion); + + if (pSrc->pDrawable) { + pSrcPix = exaGetDrawablePixmap(pSrc->pDrawable); + RegionNull(&pExaScr->srcReg); + srcReg = &pExaScr->srcReg; + pExaScr->srcPix = pSrcPix; + if (pSrc != pDst) + RegionTranslate(pSrc->pCompositeClip, + -pSrc->pDrawable->x, + -pSrc->pDrawable->y); + } + + if (pMask && pMask->pDrawable) { + pMaskPix = exaGetDrawablePixmap(pMask->pDrawable); + RegionNull(&pExaScr->maskReg); + maskReg = &pExaScr->maskReg; + if (pMask != pDst && pMask != pSrc) + RegionTranslate(pMask->pCompositeClip, + -pMask->pDrawable->x, + -pMask->pDrawable->y); + } + + RegionTranslate(pDst->pCompositeClip, + -pDst->pDrawable->x, + -pDst->pDrawable->y); + + pExaScr->SavedSourceValidate = ExaSrcValidate; + swap(pExaScr, pScreen, SourceValidate); + ret = miComputeCompositeRegion (®ion, pSrc, pMask, pDst, + xSrc, ySrc, xMask, yMask, + xDst, + yDst, + width, height); + swap(pExaScr, pScreen, SourceValidate); + + RegionTranslate(pDst->pCompositeClip, + pDst->pDrawable->x, + pDst->pDrawable->y); + if (pSrc->pDrawable && pSrc != pDst) + RegionTranslate(pSrc->pCompositeClip, + pSrc->pDrawable->x, + pSrc->pDrawable->y); + if (pMask && pMask->pDrawable && pMask != pDst && pMask != pSrc) + RegionTranslate(pMask->pCompositeClip, + pMask->pDrawable->x, + pMask->pDrawable->y); + + if (!ret) { + if (srcReg) + RegionUninit(srcReg); + if (maskReg) + RegionUninit(maskReg); + + return FALSE; + } + + /** + * Don't limit alphamaps readbacks for now until we've figured out how that + * should be done. + */ + + if (pSrc->alphaMap && pSrc->alphaMap->pDrawable) + pExaScr->prepare_access_reg(exaGetDrawablePixmap(pSrc->alphaMap->pDrawable), + EXA_PREPARE_AUX_SRC, + NULL); + if (pMask && pMask->alphaMap && pMask->alphaMap->pDrawable) + pExaScr->prepare_access_reg(exaGetDrawablePixmap(pMask->alphaMap->pDrawable), + EXA_PREPARE_AUX_MASK, + NULL); + + if (pSrcPix) + pExaScr->prepare_access_reg(pSrcPix, + EXA_PREPARE_SRC, + srcReg); + + if (pMaskPix) + pExaScr->prepare_access_reg(pMaskPix, + EXA_PREPARE_MASK, + maskReg); + + if (srcReg) + RegionUninit(srcReg); + if (maskReg) + RegionUninit(maskReg); + + pDstPix = exaGetDrawablePixmap(pDst->pDrawable); + if (!exaOpReadsDestination(op)) { + int xoff; + int yoff; + + exaGetDrawableDeltas (pDst->pDrawable, pDstPix, &xoff, &yoff); + RegionTranslate(®ion, pDst->pDrawable->x + xoff, + pDst->pDrawable->y + yoff); + dstReg = ®ion; + } + + if (pDst->alphaMap && pDst->alphaMap->pDrawable) + pExaScr->prepare_access_reg(exaGetDrawablePixmap(pDst->alphaMap->pDrawable), + EXA_PREPARE_AUX_DEST, + dstReg); + pExaScr->prepare_access_reg(pDstPix, EXA_PREPARE_DEST, dstReg); + + RegionUninit(®ion); + return TRUE; +} + +void +ExaCheckComposite (CARD8 op, + PicturePtr pSrc, + PicturePtr pMask, + PicturePtr pDst, + INT16 xSrc, + INT16 ySrc, + INT16 xMask, + INT16 yMask, + INT16 xDst, + INT16 yDst, + CARD16 width, + CARD16 height) +{ + ScreenPtr pScreen = pDst->pDrawable->pScreen; + PictureScreenPtr ps = GetPictureScreen(pScreen); + EXA_PRE_FALLBACK(pScreen); + + if (pExaScr->prepare_access_reg) { + if (!ExaPrepareCompositeReg(pScreen, op, pSrc, pMask, pDst, xSrc, + ySrc, xMask, yMask, xDst, yDst, width, + height)) + goto out_no_clip; + } else { + + /* We need to prepare access to any separate alpha maps first, + * in case the driver doesn't support EXA_PREPARE_AUX*, + * in which case EXA_PREPARE_SRC may be used for moving them out. + */ + + if (pSrc->alphaMap && pSrc->alphaMap->pDrawable) + exaPrepareAccess(pSrc->alphaMap->pDrawable, EXA_PREPARE_AUX_SRC); + if (pMask && pMask->alphaMap && pMask->alphaMap->pDrawable) + exaPrepareAccess(pMask->alphaMap->pDrawable, EXA_PREPARE_AUX_MASK); + if (pDst->alphaMap && pDst->alphaMap->pDrawable) + exaPrepareAccess(pDst->alphaMap->pDrawable, EXA_PREPARE_AUX_DEST); + + exaPrepareAccess (pDst->pDrawable, EXA_PREPARE_DEST); + + EXA_FALLBACK(("from picts %p/%p to pict %p\n", + pSrc, pMask, pDst)); + + if (pSrc->pDrawable != NULL) + exaPrepareAccess (pSrc->pDrawable, EXA_PREPARE_SRC); + if (pMask && pMask->pDrawable != NULL) + exaPrepareAccess (pMask->pDrawable, EXA_PREPARE_MASK); + } + + swap(pExaScr, ps, Composite); + ps->Composite (op, + pSrc, + pMask, + pDst, + xSrc, + ySrc, + xMask, + yMask, + xDst, + yDst, + width, + height); + swap(pExaScr, ps, Composite); + if (pMask && pMask->pDrawable != NULL) + exaFinishAccess (pMask->pDrawable, EXA_PREPARE_MASK); + if (pSrc->pDrawable != NULL) + exaFinishAccess (pSrc->pDrawable, EXA_PREPARE_SRC); + exaFinishAccess (pDst->pDrawable, EXA_PREPARE_DEST); + if (pDst->alphaMap && pDst->alphaMap->pDrawable) + exaFinishAccess(pDst->alphaMap->pDrawable, EXA_PREPARE_AUX_DEST); + if (pSrc->alphaMap && pSrc->alphaMap->pDrawable) + exaFinishAccess(pSrc->alphaMap->pDrawable, EXA_PREPARE_AUX_SRC); + if (pMask && pMask->alphaMap && pMask->alphaMap->pDrawable) + exaFinishAccess(pMask->alphaMap->pDrawable, EXA_PREPARE_AUX_MASK); + +out_no_clip: + EXA_POST_FALLBACK(pScreen); +} + +/** + * Avoid migration ping-pong when using a mask. + */ +void +ExaCheckGlyphs (CARD8 op, + PicturePtr pSrc, + PicturePtr pDst, + PictFormatPtr maskFormat, + INT16 xSrc, + INT16 ySrc, + int nlist, + GlyphListPtr list, + GlyphPtr *glyphs) +{ + ScreenPtr pScreen = pDst->pDrawable->pScreen; + EXA_PRE_FALLBACK(pScreen); + + miGlyphs(op, pSrc, pDst, maskFormat, xSrc, ySrc, nlist, list, glyphs); + + EXA_POST_FALLBACK(pScreen); +} + +void +ExaCheckAddTraps (PicturePtr pPicture, + INT16 x_off, + INT16 y_off, + int ntrap, + xTrap *traps) +{ + ScreenPtr pScreen = pPicture->pDrawable->pScreen; + PictureScreenPtr ps = GetPictureScreen(pScreen); + EXA_PRE_FALLBACK(pScreen); + + EXA_FALLBACK(("to pict %p (%c)\n", + exaDrawableLocation(pPicture->pDrawable))); + exaPrepareAccess(pPicture->pDrawable, EXA_PREPARE_DEST); + swap(pExaScr, ps, AddTraps); + ps->AddTraps (pPicture, x_off, y_off, ntrap, traps); + swap(pExaScr, ps, AddTraps); + exaFinishAccess(pPicture->pDrawable, EXA_PREPARE_DEST); + EXA_POST_FALLBACK(pScreen); +} + +/** + * Gets the 0,0 pixel of a pixmap. Used for doing solid fills of tiled pixmaps + * that happen to be 1x1. Pixmap must be at least 8bpp. + */ +CARD32 +exaGetPixmapFirstPixel (PixmapPtr pPixmap) +{ + switch (pPixmap->drawable.bitsPerPixel) { + case 32: + { + CARD32 pixel; + + pPixmap->drawable.pScreen->GetImage(&pPixmap->drawable, 0, 0, 1, 1, + ZPixmap, ~0, (char*)&pixel); + return pixel; + } + case 16: + { + CARD16 pixel; + + pPixmap->drawable.pScreen->GetImage(&pPixmap->drawable, 0, 0, 1, 1, + ZPixmap, ~0, (char*)&pixel); + return pixel; + } + case 8: + case 4: + case 1: + { + CARD8 pixel; + + pPixmap->drawable.pScreen->GetImage(&pPixmap->drawable, 0, 0, 1, 1, + ZPixmap, ~0, (char*)&pixel); + return pixel; + } + default: + FatalError("%s called for invalid bpp %d\n", __func__, + pPixmap->drawable.bitsPerPixel); + } +} |