diff options
Diffstat (limited to 'hw/xfree86/dri2')
| -rw-r--r-- | hw/xfree86/dri2/Makefile.am | 16 | ||||
| -rw-r--r-- | hw/xfree86/dri2/Makefile.in | 803 | ||||
| -rw-r--r-- | hw/xfree86/dri2/dri2.c | 1232 | ||||
| -rw-r--r-- | hw/xfree86/dri2/dri2.h | 287 | ||||
| -rw-r--r-- | hw/xfree86/dri2/dri2ext.c | 650 |
5 files changed, 2988 insertions, 0 deletions
diff --git a/hw/xfree86/dri2/Makefile.am b/hw/xfree86/dri2/Makefile.am new file mode 100644 index 0000000..c9fdde2 --- /dev/null +++ b/hw/xfree86/dri2/Makefile.am @@ -0,0 +1,16 @@ +libdri2_la_LTLIBRARIES = libdri2.la +libdri2_la_CFLAGS = \ + -DHAVE_XORG_CONFIG_H \ + @DRI_CFLAGS@ \ + @DIX_CFLAGS@ @XORG_CFLAGS@ @DRI2PROTO_CFLAGS@ @LIBDRM_CFLAGS@ \ + -I$(top_srcdir)/hw/xfree86/common \ + -I$(top_srcdir)/hw/xfree86/os-support/bus + +libdri2_la_LDFLAGS = -module -avoid-version @LIBDRM_LIBS@ +libdri2_ladir = $(moduledir)/extensions +libdri2_la_SOURCES = \ + dri2.c \ + dri2.h \ + dri2ext.c + +sdk_HEADERS = dri2.h diff --git a/hw/xfree86/dri2/Makefile.in b/hw/xfree86/dri2/Makefile.in new file mode 100644 index 0000000..3fc6563 --- /dev/null +++ b/hw/xfree86/dri2/Makefile.in @@ -0,0 +1,803 @@ +# 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="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd +install_sh_DATA = $(install_sh) -c -m 644 +install_sh_PROGRAM = $(install_sh) -c +install_sh_SCRIPT = $(install_sh) -c +INSTALL_HEADER = $(INSTALL_DATA) +transform = $(program_transform_name) +NORMAL_INSTALL = : +PRE_INSTALL = : +POST_INSTALL = : +NORMAL_UNINSTALL = : +PRE_UNINSTALL = : +POST_UNINSTALL = : +build_triplet = @build@ +host_triplet = @host@ +subdir = hw/xfree86/dri2 +DIST_COMMON = $(sdk_HEADERS) $(srcdir)/Makefile.am \ + $(srcdir)/Makefile.in +ACLOCAL_M4 = $(top_srcdir)/aclocal.m4 +am__aclocal_m4_deps = $(top_srcdir)/m4/ac_define_dir.m4 \ + $(top_srcdir)/m4/ax_tls.m4 $(top_srcdir)/configure.ac +am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \ + $(ACLOCAL_M4) +mkinstalldirs = $(install_sh) -d +CONFIG_HEADER = $(top_builddir)/include/do-not-use-config.h \ + $(top_builddir)/include/xorg-server.h \ + $(top_builddir)/include/dix-config.h \ + $(top_builddir)/include/xorg-config.h \ + $(top_builddir)/include/xkb-config.h \ + $(top_builddir)/include/xwin-config.h \ + $(top_builddir)/include/kdrive-config.h \ + $(top_builddir)/include/version-config.h +CONFIG_CLEAN_FILES = +CONFIG_CLEAN_VPATH_FILES = +am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`; +am__vpath_adj = case $$p in \ + $(srcdir)/*) f=`echo "$$p" | sed 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+DMXEXAMPLES_DEP_LIBS = @DMXEXAMPLES_DEP_LIBS@ +DMXMODULES_CFLAGS = @DMXMODULES_CFLAGS@ +DMXMODULES_LIBS = @DMXMODULES_LIBS@ +DMXXIEXAMPLES_DEP_CFLAGS = @DMXXIEXAMPLES_DEP_CFLAGS@ +DMXXIEXAMPLES_DEP_LIBS = @DMXXIEXAMPLES_DEP_LIBS@ +DMXXMUEXAMPLES_DEP_CFLAGS = @DMXXMUEXAMPLES_DEP_CFLAGS@ +DMXXMUEXAMPLES_DEP_LIBS = @DMXXMUEXAMPLES_DEP_LIBS@ +DOXYGEN = @DOXYGEN@ +DRI2PROTO_CFLAGS = @DRI2PROTO_CFLAGS@ +DRI2PROTO_LIBS = @DRI2PROTO_LIBS@ +DRIPROTO_CFLAGS = @DRIPROTO_CFLAGS@ +DRIPROTO_LIBS = @DRIPROTO_LIBS@ +DRIVER_MAN_DIR = @DRIVER_MAN_DIR@ +DRIVER_MAN_SUFFIX = @DRIVER_MAN_SUFFIX@ +DRI_CFLAGS = @DRI_CFLAGS@ +DRI_DRIVER_PATH = @DRI_DRIVER_PATH@ +DRI_LIBS = @DRI_LIBS@ +DSYMUTIL = @DSYMUTIL@ +DTRACE = @DTRACE@ +DUMPBIN = @DUMPBIN@ +ECHO_C = @ECHO_C@ +ECHO_N = @ECHO_N@ +ECHO_T = @ECHO_T@ +EGREP = @EGREP@ +EXEEXT = @EXEEXT@ +FGREP = @FGREP@ +FILE_MAN_DIR = @FILE_MAN_DIR@ +FILE_MAN_SUFFIX = @FILE_MAN_SUFFIX@ +FONT100DPIDIR = @FONT100DPIDIR@ +FONT75DPIDIR = @FONT75DPIDIR@ +FONTMISCDIR = 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uninstall-sdkHEADERS + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/hw/xfree86/dri2/dri2.c b/hw/xfree86/dri2/dri2.c new file mode 100644 index 0000000..10be599 --- /dev/null +++ b/hw/xfree86/dri2/dri2.c @@ -0,0 +1,1232 @@ +/* + * Copyright © 2007, 2008 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Soft- + * ware"), to deal in the Software without restriction, including without + * limitation the rights to use, copy, modify, merge, publish, distribute, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, provided that the above copyright + * notice(s) and this permission notice appear in all copies of the Soft- + * ware and that both the above copyright notice(s) and this permission + * notice appear in supporting documentation. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL- + * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY + * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN + * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE- + * QUENTIAL 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 PERFOR- + * MANCE OF THIS SOFTWARE. + * + * Except as contained in this notice, the name of a copyright holder shall + * not be used in advertising or otherwise to promote the sale, use or + * other dealings in this Software without prior written authorization of + * the copyright holder. + * + * Authors: + * Kristian Høgsberg (krh@redhat.com) + */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <errno.h> +#ifdef WITH_LIBDRM +#include <xf86drm.h> +#endif +#include "xf86Module.h" +#include "list.h" +#include "scrnintstr.h" +#include "windowstr.h" +#include "dixstruct.h" +#include "dri2.h" +#include "xf86VGAarbiter.h" + +#include "xf86.h" + +CARD8 dri2_major; /* version of DRI2 supported by DDX */ +CARD8 dri2_minor; + +static DevPrivateKeyRec dri2ScreenPrivateKeyRec; +#define dri2ScreenPrivateKey (&dri2ScreenPrivateKeyRec) + +static DevPrivateKeyRec dri2WindowPrivateKeyRec; +#define dri2WindowPrivateKey (&dri2WindowPrivateKeyRec) + +static DevPrivateKeyRec dri2PixmapPrivateKeyRec; +#define dri2PixmapPrivateKey (&dri2PixmapPrivateKeyRec) + +static RESTYPE dri2DrawableRes; + +typedef struct _DRI2Screen *DRI2ScreenPtr; + +typedef struct _DRI2Drawable { + DRI2ScreenPtr dri2_screen; + DrawablePtr drawable; + struct list reference_list; + int width; + int height; + DRI2BufferPtr *buffers; + int bufferCount; + unsigned int swapsPending; + ClientPtr blockedClient; + Bool blockedOnMsc; + int swap_interval; + CARD64 swap_count; + int64_t target_sbc; /* -1 means no SBC wait outstanding */ + CARD64 last_swap_target; /* most recently queued swap target */ + CARD64 last_swap_msc; /* msc at completion of most recent swap */ + CARD64 last_swap_ust; /* ust at completion of most recent swap */ + int swap_limit; /* for N-buffering */ + unsigned long serialNumber; +} DRI2DrawableRec, *DRI2DrawablePtr; + +typedef struct _DRI2Screen { + ScreenPtr screen; + int refcnt; + unsigned int numDrivers; + const char **driverNames; + const char *deviceName; + int fd; + unsigned int lastSequence; + + DRI2CreateBufferProcPtr CreateBuffer; + DRI2DestroyBufferProcPtr DestroyBuffer; + DRI2CopyRegionProcPtr CopyRegion; + DRI2ScheduleSwapProcPtr ScheduleSwap; + DRI2GetMSCProcPtr GetMSC; + DRI2ScheduleWaitMSCProcPtr ScheduleWaitMSC; + DRI2AuthMagicProcPtr AuthMagic; + + HandleExposuresProcPtr HandleExposures; + + ConfigNotifyProcPtr ConfigNotify; +} DRI2ScreenRec; + +static DRI2ScreenPtr +DRI2GetScreen(ScreenPtr pScreen) +{ + return dixLookupPrivate(&pScreen->devPrivates, dri2ScreenPrivateKey); +} + +static DRI2DrawablePtr +DRI2GetDrawable(DrawablePtr pDraw) +{ + WindowPtr pWin; + PixmapPtr pPixmap; + + switch (pDraw->type) { + case DRAWABLE_WINDOW: + pWin = (WindowPtr) pDraw; + return dixLookupPrivate(&pWin->devPrivates, dri2WindowPrivateKey); + case DRAWABLE_PIXMAP: + pPixmap = (PixmapPtr) pDraw; + return dixLookupPrivate(&pPixmap->devPrivates, dri2PixmapPrivateKey); + default: + return NULL; + } +} + +static unsigned long +DRI2DrawableSerial(DrawablePtr pDraw) +{ + ScreenPtr pScreen = pDraw->pScreen; + PixmapPtr pPix; + + if (pDraw->type != DRAWABLE_WINDOW) + return pDraw->serialNumber; + + pPix = pScreen->GetWindowPixmap((WindowPtr)pDraw); + return pPix->drawable.serialNumber; +} + +static DRI2DrawablePtr +DRI2AllocateDrawable(DrawablePtr pDraw) +{ + DRI2ScreenPtr ds = DRI2GetScreen(pDraw->pScreen); + DRI2DrawablePtr pPriv; + CARD64 ust; + WindowPtr pWin; + PixmapPtr pPixmap; + + pPriv = malloc(sizeof *pPriv); + if (pPriv == NULL) + return NULL; + + pPriv->dri2_screen = ds; + pPriv->drawable = pDraw; + pPriv->width = pDraw->width; + pPriv->height = pDraw->height; + pPriv->buffers = NULL; + pPriv->bufferCount = 0; + pPriv->swapsPending = 0; + pPriv->blockedClient = NULL; + pPriv->blockedOnMsc = FALSE; + pPriv->swap_count = 0; + pPriv->target_sbc = -1; + pPriv->swap_interval = 1; + /* Initialize last swap target from DDX if possible */ + if (!ds->GetMSC || !(*ds->GetMSC)(pDraw, &ust, &pPriv->last_swap_target)) + pPriv->last_swap_target = 0; + + pPriv->swap_limit = 1; /* default to double buffering */ + pPriv->last_swap_msc = 0; + pPriv->last_swap_ust = 0; + list_init(&pPriv->reference_list); + pPriv->serialNumber = DRI2DrawableSerial(pDraw); + + if (pDraw->type == DRAWABLE_WINDOW) { + pWin = (WindowPtr) pDraw; + dixSetPrivate(&pWin->devPrivates, dri2WindowPrivateKey, pPriv); + } else { + pPixmap = (PixmapPtr) pDraw; + dixSetPrivate(&pPixmap->devPrivates, dri2PixmapPrivateKey, pPriv); + } + + return pPriv; +} + +typedef struct DRI2DrawableRefRec { + XID id; + XID dri2_id; + DRI2InvalidateProcPtr invalidate; + void *priv; + struct list link; +} DRI2DrawableRefRec, *DRI2DrawableRefPtr; + +static DRI2DrawableRefPtr +DRI2LookupDrawableRef(DRI2DrawablePtr pPriv, XID id) +{ + DRI2DrawableRefPtr ref; + + list_for_each_entry(ref, &pPriv->reference_list, link) { + if (ref->id == id) + return ref; + } + + return NULL; +} + +static int +DRI2AddDrawableRef(DRI2DrawablePtr pPriv, XID id, XID dri2_id, + DRI2InvalidateProcPtr invalidate, void *priv) +{ + DRI2DrawableRefPtr ref; + + ref = malloc(sizeof *ref); + if (ref == NULL) + return BadAlloc; + + if (!AddResource(dri2_id, dri2DrawableRes, pPriv)) { + free(ref); + return BadAlloc; + } + if (!DRI2LookupDrawableRef(pPriv, id)) + if (!AddResource(id, dri2DrawableRes, pPriv)) { + FreeResourceByType(dri2_id, dri2DrawableRes, TRUE); + free(ref); + return BadAlloc; + } + + ref->id = id; + ref->dri2_id = dri2_id; + ref->invalidate = invalidate; + ref->priv = priv; + list_add(&ref->link, &pPriv->reference_list); + + return Success; +} + +int +DRI2CreateDrawable(ClientPtr client, DrawablePtr pDraw, XID id, + DRI2InvalidateProcPtr invalidate, void *priv) +{ + DRI2DrawablePtr pPriv; + XID dri2_id; + int rc; + + pPriv = DRI2GetDrawable(pDraw); + if (pPriv == NULL) + pPriv = DRI2AllocateDrawable(pDraw); + if (pPriv == NULL) + return BadAlloc; + + dri2_id = FakeClientID(client->index); + rc = DRI2AddDrawableRef(pPriv, id, dri2_id, invalidate, priv); + if (rc != Success) + return rc; + + return Success; +} + +static int DRI2DrawableGone(pointer p, XID id) +{ + DRI2DrawablePtr pPriv = p; + DRI2ScreenPtr ds = pPriv->dri2_screen; + DRI2DrawableRefPtr ref, next; + WindowPtr pWin; + PixmapPtr pPixmap; + DrawablePtr pDraw; + int i; + + list_for_each_entry_safe(ref, next, &pPriv->reference_list, link) { + if (ref->dri2_id == id) { + list_del(&ref->link); + /* If this was the last ref under this X drawable XID, + * unregister the X drawable resource. */ + if (!DRI2LookupDrawableRef(pPriv, ref->id)) + FreeResourceByType(ref->id, dri2DrawableRes, TRUE); + free(ref); + break; + } + + if (ref->id == id) { + list_del(&ref->link); + FreeResourceByType(ref->dri2_id, dri2DrawableRes, TRUE); + free(ref); + } + } + + if (!list_is_empty(&pPriv->reference_list)) + return Success; + + pDraw = pPriv->drawable; + if (pDraw->type == DRAWABLE_WINDOW) { + pWin = (WindowPtr) pDraw; + dixSetPrivate(&pWin->devPrivates, dri2WindowPrivateKey, NULL); + } else { + pPixmap = (PixmapPtr) pDraw; + dixSetPrivate(&pPixmap->devPrivates, dri2PixmapPrivateKey, NULL); + } + + if (pPriv->buffers != NULL) { + for (i = 0; i < pPriv->bufferCount; i++) + (*ds->DestroyBuffer)(pDraw, pPriv->buffers[i]); + + free(pPriv->buffers); + } + + free(pPriv); + + return Success; +} + +static int +find_attachment(DRI2DrawablePtr pPriv, unsigned attachment) +{ + int i; + + if (pPriv->buffers == NULL) { + return -1; + } + + for (i = 0; i < pPriv->bufferCount; i++) { + if ((pPriv->buffers[i] != NULL) + && (pPriv->buffers[i]->attachment == attachment)) { + return i; + } + } + + return -1; +} + +static Bool +allocate_or_reuse_buffer(DrawablePtr pDraw, DRI2ScreenPtr ds, + DRI2DrawablePtr pPriv, + unsigned int attachment, unsigned int format, + int dimensions_match, DRI2BufferPtr *buffer) +{ + int old_buf = find_attachment(pPriv, attachment); + + if ((old_buf < 0) + || !dimensions_match + || (pPriv->buffers[old_buf]->format != format)) { + *buffer = (*ds->CreateBuffer)(pDraw, attachment, format); + pPriv->serialNumber = DRI2DrawableSerial(pDraw); + return TRUE; + + } else { + *buffer = pPriv->buffers[old_buf]; + pPriv->buffers[old_buf] = NULL; + return FALSE; + } +} + +static void +update_dri2_drawable_buffers(DRI2DrawablePtr pPriv, DrawablePtr pDraw, + DRI2BufferPtr *buffers, int *out_count, int *width, int *height) +{ + DRI2ScreenPtr ds = DRI2GetScreen(pDraw->pScreen); + int i; + + if (pPriv->buffers != NULL) { + for (i = 0; i < pPriv->bufferCount; i++) { + if (pPriv->buffers[i] != NULL) { + (*ds->DestroyBuffer)(pDraw, pPriv->buffers[i]); + } + } + + free(pPriv->buffers); + } + + pPriv->buffers = buffers; + pPriv->bufferCount = *out_count; + pPriv->width = pDraw->width; + pPriv->height = pDraw->height; + *width = pPriv->width; + *height = pPriv->height; +} + +static DRI2BufferPtr * +do_get_buffers(DrawablePtr pDraw, int *width, int *height, + unsigned int *attachments, int count, int *out_count, + int has_format) +{ + DRI2ScreenPtr ds = DRI2GetScreen(pDraw->pScreen); + DRI2DrawablePtr pPriv = DRI2GetDrawable(pDraw); + DRI2BufferPtr *buffers; + int need_real_front = 0; + int need_fake_front = 0; + int have_fake_front = 0; + int front_format = 0; + int dimensions_match; + int buffers_changed = 0; + int i; + + if (!pPriv) { + *width = pDraw->width; + *height = pDraw->height; + *out_count = 0; + return NULL; + } + + dimensions_match = (pDraw->width == pPriv->width) + && (pDraw->height == pPriv->height) + && (pPriv->serialNumber == DRI2DrawableSerial(pDraw)); + + buffers = calloc((count + 1), sizeof(buffers[0])); + + for (i = 0; i < count; i++) { + const unsigned attachment = *(attachments++); + const unsigned format = (has_format) ? *(attachments++) : 0; + + if (allocate_or_reuse_buffer(pDraw, ds, pPriv, attachment, + format, dimensions_match, + &buffers[i])) + buffers_changed = 1; + + if (buffers[i] == NULL) + goto err_out; + + /* If the drawable is a window and the front-buffer is requested, + * silently add the fake front-buffer to the list of requested + * attachments. The counting logic in the loop accounts for the case + * where the client requests both the fake and real front-buffer. + */ + if (attachment == DRI2BufferBackLeft) { + need_real_front++; + front_format = format; + } + + if (attachment == DRI2BufferFrontLeft) { + need_real_front--; + front_format = format; + + if (pDraw->type == DRAWABLE_WINDOW) { + need_fake_front++; + } + } + + if (pDraw->type == DRAWABLE_WINDOW) { + if (attachment == DRI2BufferFakeFrontLeft) { + need_fake_front--; + have_fake_front = 1; + } + } + } + + if (need_real_front > 0) { + if (allocate_or_reuse_buffer(pDraw, ds, pPriv, DRI2BufferFrontLeft, + front_format, dimensions_match, + &buffers[i])) + buffers_changed = 1; + + if (buffers[i] == NULL) + goto err_out; + i++; + } + + if (need_fake_front > 0) { + if (allocate_or_reuse_buffer(pDraw, ds, pPriv, DRI2BufferFakeFrontLeft, + front_format, dimensions_match, + &buffers[i])) + buffers_changed = 1; + + if (buffers[i] == NULL) + goto err_out; + + i++; + have_fake_front = 1; + } + + *out_count = i; + + update_dri2_drawable_buffers(pPriv, pDraw, buffers, out_count, width, height); + + /* If the client is getting a fake front-buffer, pre-fill it with the + * contents of the real front-buffer. This ensures correct operation of + * applications that call glXWaitX before calling glDrawBuffer. + */ + if (have_fake_front && buffers_changed) { + BoxRec box; + RegionRec region; + + box.x1 = 0; + box.y1 = 0; + box.x2 = pPriv->width; + box.y2 = pPriv->height; + RegionInit(®ion, &box, 0); + + DRI2CopyRegion(pDraw, ®ion, DRI2BufferFakeFrontLeft, + DRI2BufferFrontLeft); + } + + return pPriv->buffers; + +err_out: + + *out_count = 0; + + for (i = 0; i < count; i++) { + if (buffers[i] != NULL) + (*ds->DestroyBuffer)(pDraw, buffers[i]); + } + + free(buffers); + buffers = NULL; + + update_dri2_drawable_buffers(pPriv, pDraw, buffers, out_count, width, height); + + return buffers; +} + +DRI2BufferPtr * +DRI2GetBuffers(DrawablePtr pDraw, int *width, int *height, + unsigned int *attachments, int count, int *out_count) +{ + return do_get_buffers(pDraw, width, height, attachments, count, + out_count, FALSE); +} + +DRI2BufferPtr * +DRI2GetBuffersWithFormat(DrawablePtr pDraw, int *width, int *height, + unsigned int *attachments, int count, int *out_count) +{ + return do_get_buffers(pDraw, width, height, attachments, count, + out_count, TRUE); +} + +static void +DRI2InvalidateDrawable(DrawablePtr pDraw) +{ + DRI2DrawablePtr pPriv = DRI2GetDrawable(pDraw); + DRI2DrawableRefPtr ref; + + if (!pPriv) + return; + + list_for_each_entry(ref, &pPriv->reference_list, link) + ref->invalidate(pDraw, ref->priv); +} + +/* + * In the direct rendered case, we throttle the clients that have more + * than their share of outstanding swaps (and thus busy buffers) when a + * new GetBuffers request is received. In the AIGLX case, we allow the + * client to get the new buffers, but throttle when the next GLX request + * comes in (see __glXDRIcontextWait()). + */ +Bool +DRI2ThrottleClient(ClientPtr client, DrawablePtr pDraw) +{ + DRI2DrawablePtr pPriv; + + pPriv = DRI2GetDrawable(pDraw); + if (pPriv == NULL) + return FALSE; + + /* Throttle to swap limit */ + if ((pPriv->swapsPending >= pPriv->swap_limit) && + !pPriv->blockedClient) { + ResetCurrentRequest(client); + client->sequence--; + IgnoreClient(client); + pPriv->blockedClient = client; + return TRUE; + } + + return FALSE; +} + +static void +__DRI2BlockClient(ClientPtr client, DRI2DrawablePtr pPriv) +{ + if (pPriv->blockedClient == NULL) { + IgnoreClient(client); + pPriv->blockedClient = client; + } +} + +void +DRI2BlockClient(ClientPtr client, DrawablePtr pDraw) +{ + DRI2DrawablePtr pPriv; + + pPriv = DRI2GetDrawable(pDraw); + if (pPriv == NULL) + return; + + __DRI2BlockClient(client, pPriv); + pPriv->blockedOnMsc = TRUE; +} + +int +DRI2CopyRegion(DrawablePtr pDraw, RegionPtr pRegion, + unsigned int dest, unsigned int src) +{ + DRI2ScreenPtr ds = DRI2GetScreen(pDraw->pScreen); + DRI2DrawablePtr pPriv; + DRI2BufferPtr pDestBuffer, pSrcBuffer; + int i; + + pPriv = DRI2GetDrawable(pDraw); + if (pPriv == NULL) + return BadDrawable; + + pDestBuffer = NULL; + pSrcBuffer = NULL; + for (i = 0; i < pPriv->bufferCount; i++) + { + if (pPriv->buffers[i]->attachment == dest) + pDestBuffer = (DRI2BufferPtr) pPriv->buffers[i]; + if (pPriv->buffers[i]->attachment == src) + pSrcBuffer = (DRI2BufferPtr) pPriv->buffers[i]; + } + if (pSrcBuffer == NULL || pDestBuffer == NULL) + return BadValue; + + (*ds->CopyRegion)(pDraw, pRegion, pDestBuffer, pSrcBuffer); + + return Success; +} + +/* Can this drawable be page flipped? */ +Bool +DRI2CanFlip(DrawablePtr pDraw) +{ + ScreenPtr pScreen = pDraw->pScreen; + WindowPtr pWin, pRoot; + PixmapPtr pWinPixmap, pRootPixmap; + + if (pDraw->type == DRAWABLE_PIXMAP) + return TRUE; + + pRoot = pScreen->root; + pRootPixmap = pScreen->GetWindowPixmap(pRoot); + + pWin = (WindowPtr) pDraw; + pWinPixmap = pScreen->GetWindowPixmap(pWin); + if (pRootPixmap != pWinPixmap) + return FALSE; + if (!RegionEqual(&pWin->clipList, &pRoot->winSize)) + return FALSE; + + /* Does the window match the pixmap exactly? */ + if (pDraw->x != 0 || + pDraw->y != 0 || +#ifdef COMPOSITE + pDraw->x != pWinPixmap->screen_x || + pDraw->y != pWinPixmap->screen_y || +#endif + pDraw->width != pWinPixmap->drawable.width || + pDraw->height != pWinPixmap->drawable.height) + return FALSE; + + return TRUE; +} + +/* Can we do a pixmap exchange instead of a blit? */ +Bool +DRI2CanExchange(DrawablePtr pDraw) +{ + return FALSE; +} + +void +DRI2WaitMSCComplete(ClientPtr client, DrawablePtr pDraw, int frame, + unsigned int tv_sec, unsigned int tv_usec) +{ + DRI2DrawablePtr pPriv; + + pPriv = DRI2GetDrawable(pDraw); + if (pPriv == NULL) + return; + + ProcDRI2WaitMSCReply(client, ((CARD64)tv_sec * 1000000) + tv_usec, + frame, pPriv->swap_count); + + if (pPriv->blockedClient) + AttendClient(pPriv->blockedClient); + + pPriv->blockedClient = NULL; + pPriv->blockedOnMsc = FALSE; +} + +static void +DRI2WakeClient(ClientPtr client, DrawablePtr pDraw, int frame, + unsigned int tv_sec, unsigned int tv_usec) +{ + ScreenPtr pScreen = pDraw->pScreen; + DRI2DrawablePtr pPriv; + + pPriv = DRI2GetDrawable(pDraw); + if (pPriv == NULL) { + xf86DrvMsg(pScreen->myNum, X_ERROR, + "[DRI2] %s: bad drawable\n", __func__); + return; + } + + /* + * Swap completed. + * Wake the client iff: + * - it was waiting on SBC + * - was blocked due to GLX make current + * - was blocked due to swap throttling + * - is not blocked due to an MSC wait + */ + if (pPriv->target_sbc != -1 && + pPriv->target_sbc <= pPriv->swap_count) { + ProcDRI2WaitMSCReply(client, ((CARD64)tv_sec * 1000000) + tv_usec, + frame, pPriv->swap_count); + pPriv->target_sbc = -1; + + AttendClient(pPriv->blockedClient); + pPriv->blockedClient = NULL; + } else if (pPriv->target_sbc == -1 && !pPriv->blockedOnMsc) { + if (pPriv->blockedClient) { + AttendClient(pPriv->blockedClient); + pPriv->blockedClient = NULL; + } + } +} + +void +DRI2SwapComplete(ClientPtr client, DrawablePtr pDraw, int frame, + unsigned int tv_sec, unsigned int tv_usec, int type, + DRI2SwapEventPtr swap_complete, void *swap_data) +{ + ScreenPtr pScreen = pDraw->pScreen; + DRI2DrawablePtr pPriv; + CARD64 ust = 0; + BoxRec box; + RegionRec region; + + pPriv = DRI2GetDrawable(pDraw); + if (pPriv == NULL) { + xf86DrvMsg(pScreen->myNum, X_ERROR, + "[DRI2] %s: bad drawable\n", __func__); + return; + } + + pPriv->swapsPending--; + pPriv->swap_count++; + + box.x1 = 0; + box.y1 = 0; + box.x2 = pDraw->width; + box.y2 = pDraw->height; + RegionInit(®ion, &box, 0); + DRI2CopyRegion(pDraw, ®ion, DRI2BufferFakeFrontLeft, + DRI2BufferFrontLeft); + + ust = ((CARD64)tv_sec * 1000000) + tv_usec; + if (swap_complete) + swap_complete(client, swap_data, type, ust, frame, pPriv->swap_count); + + pPriv->last_swap_msc = frame; + pPriv->last_swap_ust = ust; + + DRI2WakeClient(client, pDraw, frame, tv_sec, tv_usec); +} + +Bool +DRI2WaitSwap(ClientPtr client, DrawablePtr pDrawable) +{ + DRI2DrawablePtr pPriv = DRI2GetDrawable(pDrawable); + + /* If we're currently waiting for a swap on this drawable, reset + * the request and suspend the client. We only support one + * blocked client per drawable. */ + if ((pPriv->swapsPending) && + pPriv->blockedClient == NULL) { + ResetCurrentRequest(client); + client->sequence--; + __DRI2BlockClient(client, pPriv); + return TRUE; + } + + return FALSE; +} + +int +DRI2SwapBuffers(ClientPtr client, DrawablePtr pDraw, CARD64 target_msc, + CARD64 divisor, CARD64 remainder, CARD64 *swap_target, + DRI2SwapEventPtr func, void *data) +{ + ScreenPtr pScreen = pDraw->pScreen; + DRI2ScreenPtr ds = DRI2GetScreen(pDraw->pScreen); + DRI2DrawablePtr pPriv; + DRI2BufferPtr pDestBuffer = NULL, pSrcBuffer = NULL; + int ret, i; + CARD64 ust, current_msc; + + pPriv = DRI2GetDrawable(pDraw); + if (pPriv == NULL) { + xf86DrvMsg(pScreen->myNum, X_ERROR, + "[DRI2] %s: bad drawable\n", __func__); + return BadDrawable; + } + + for (i = 0; i < pPriv->bufferCount; i++) { + if (pPriv->buffers[i]->attachment == DRI2BufferFrontLeft) + pDestBuffer = (DRI2BufferPtr) pPriv->buffers[i]; + if (pPriv->buffers[i]->attachment == DRI2BufferBackLeft) + pSrcBuffer = (DRI2BufferPtr) pPriv->buffers[i]; + } + if (pSrcBuffer == NULL || pDestBuffer == NULL) { + xf86DrvMsg(pScreen->myNum, X_ERROR, + "[DRI2] %s: drawable has no back or front?\n", __func__); + return BadDrawable; + } + + /* Old DDX or no swap interval, just blit */ + if (!ds->ScheduleSwap || !pPriv->swap_interval) { + BoxRec box; + RegionRec region; + + box.x1 = 0; + box.y1 = 0; + box.x2 = pDraw->width; + box.y2 = pDraw->height; + RegionInit(®ion, &box, 0); + + pPriv->swapsPending++; + + (*ds->CopyRegion)(pDraw, ®ion, pDestBuffer, pSrcBuffer); + DRI2SwapComplete(client, pDraw, target_msc, 0, 0, DRI2_BLIT_COMPLETE, + func, data); + return Success; + } + + /* + * In the simple glXSwapBuffers case, all params will be 0, and we just + * need to schedule a swap for the last swap target + the swap interval. + */ + if (target_msc == 0 && divisor == 0 && remainder == 0) { + /* If the current vblank count of the drawable's crtc is lower + * than the count stored in last_swap_target from a previous swap + * then reinitialize last_swap_target to the current crtc's msc, + * otherwise the swap will hang. This will happen if the drawable + * is moved to a crtc with a lower refresh rate, or a crtc that just + * got enabled. + */ + if (ds->GetMSC) { + if (!(*ds->GetMSC)(pDraw, &ust, ¤t_msc)) + pPriv->last_swap_target = 0; + + if (current_msc < pPriv->last_swap_target) + pPriv->last_swap_target = current_msc; + + } + + /* + * Swap target for this swap is last swap target + swap interval since + * we have to account for the current swap count, interval, and the + * number of pending swaps. + */ + *swap_target = pPriv->last_swap_target + pPriv->swap_interval; + + } else { + /* glXSwapBuffersMscOML could have a 0 target_msc, honor it */ + *swap_target = target_msc; + } + + pPriv->swapsPending++; + ret = (*ds->ScheduleSwap)(client, pDraw, pDestBuffer, pSrcBuffer, + swap_target, divisor, remainder, func, data); + if (!ret) { + pPriv->swapsPending--; /* didn't schedule */ + xf86DrvMsg(pScreen->myNum, X_ERROR, + "[DRI2] %s: driver failed to schedule swap\n", __func__); + return BadDrawable; + } + + pPriv->last_swap_target = *swap_target; + + /* According to spec, return expected swapbuffers count SBC after this swap + * will complete. + */ + *swap_target = pPriv->swap_count + pPriv->swapsPending; + + DRI2InvalidateDrawable(pDraw); + + return Success; +} + +void +DRI2SwapInterval(DrawablePtr pDrawable, int interval) +{ + ScreenPtr pScreen = pDrawable->pScreen; + DRI2DrawablePtr pPriv = DRI2GetDrawable(pDrawable); + + if (pPriv == NULL) { + xf86DrvMsg(pScreen->myNum, X_ERROR, + "[DRI2] %s: bad drawable\n", __func__); + return; + } + + /* fixme: check against arbitrary max? */ + pPriv->swap_interval = interval; +} + +int +DRI2GetMSC(DrawablePtr pDraw, CARD64 *ust, CARD64 *msc, CARD64 *sbc) +{ + ScreenPtr pScreen = pDraw->pScreen; + DRI2ScreenPtr ds = DRI2GetScreen(pDraw->pScreen); + DRI2DrawablePtr pPriv; + Bool ret; + + pPriv = DRI2GetDrawable(pDraw); + if (pPriv == NULL) { + xf86DrvMsg(pScreen->myNum, X_ERROR, + "[DRI2] %s: bad drawable\n", __func__); + return BadDrawable; + } + + if (!ds->GetMSC) { + *ust = 0; + *msc = 0; + *sbc = pPriv->swap_count; + return Success; + } + + /* + * Spec needs to be updated to include unmapped or redirected + * drawables + */ + + ret = (*ds->GetMSC)(pDraw, ust, msc); + if (!ret) + return BadDrawable; + + *sbc = pPriv->swap_count; + + return Success; +} + +int +DRI2WaitMSC(ClientPtr client, DrawablePtr pDraw, CARD64 target_msc, + CARD64 divisor, CARD64 remainder) +{ + DRI2ScreenPtr ds = DRI2GetScreen(pDraw->pScreen); + DRI2DrawablePtr pPriv; + Bool ret; + + pPriv = DRI2GetDrawable(pDraw); + if (pPriv == NULL) + return BadDrawable; + + /* Old DDX just completes immediately */ + if (!ds->ScheduleWaitMSC) { + DRI2WaitMSCComplete(client, pDraw, target_msc, 0, 0); + + return Success; + } + + ret = (*ds->ScheduleWaitMSC)(client, pDraw, target_msc, divisor, remainder); + if (!ret) + return BadDrawable; + + return Success; +} + +int +DRI2WaitSBC(ClientPtr client, DrawablePtr pDraw, CARD64 target_sbc) +{ + DRI2DrawablePtr pPriv; + + pPriv = DRI2GetDrawable(pDraw); + if (pPriv == NULL) + return BadDrawable; + + /* target_sbc == 0 means to block until all pending swaps are + * finished. Recalculate target_sbc to get that behaviour. + */ + if (target_sbc == 0) + target_sbc = pPriv->swap_count + pPriv->swapsPending; + + /* If current swap count already >= target_sbc, reply and + * return immediately with (ust, msc, sbc) triplet of + * most recent completed swap. + */ + if (pPriv->swap_count >= target_sbc) { + ProcDRI2WaitMSCReply(client, pPriv->last_swap_ust, + pPriv->last_swap_msc, pPriv->swap_count); + return Success; + } + + pPriv->target_sbc = target_sbc; + __DRI2BlockClient(client, pPriv); + + return Success; +} + +Bool +DRI2HasSwapControl(ScreenPtr pScreen) +{ + DRI2ScreenPtr ds = DRI2GetScreen(pScreen); + + return ds->ScheduleSwap && ds->GetMSC; +} + +Bool +DRI2Connect(ScreenPtr pScreen, unsigned int driverType, int *fd, + const char **driverName, const char **deviceName) +{ + DRI2ScreenPtr ds; + + if (!dixPrivateKeyRegistered(dri2ScreenPrivateKey)) + return FALSE; + + ds = DRI2GetScreen(pScreen); + if (ds == NULL || driverType >= ds->numDrivers || + !ds->driverNames[driverType]) + return FALSE; + + *fd = ds->fd; + *driverName = ds->driverNames[driverType]; + *deviceName = ds->deviceName; + + return TRUE; +} + +Bool +DRI2Authenticate(ScreenPtr pScreen, uint32_t magic) +{ + DRI2ScreenPtr ds = DRI2GetScreen(pScreen); + + if (ds == NULL || (*ds->AuthMagic)(ds->fd, magic)) + return FALSE; + + return TRUE; +} + +static int +DRI2ConfigNotify(WindowPtr pWin, int x, int y, int w, int h, int bw, + WindowPtr pSib) +{ + DrawablePtr pDraw = (DrawablePtr)pWin; + ScreenPtr pScreen = pDraw->pScreen; + DRI2ScreenPtr ds = DRI2GetScreen(pScreen); + DRI2DrawablePtr dd = DRI2GetDrawable(pDraw); + int ret; + + if (ds->ConfigNotify) { + pScreen->ConfigNotify = ds->ConfigNotify; + + ret = (*pScreen->ConfigNotify)(pWin, x, y, w, h, bw, pSib); + + ds->ConfigNotify = pScreen->ConfigNotify; + pScreen->ConfigNotify = DRI2ConfigNotify; + if (ret) + return ret; + } + + if (!dd || (dd->width == w && dd->height == h)) + return Success; + + DRI2InvalidateDrawable(pDraw); + return Success; +} + +Bool +DRI2ScreenInit(ScreenPtr pScreen, DRI2InfoPtr info) +{ + DRI2ScreenPtr ds; + const char* driverTypeNames[] = { + "DRI", /* DRI2DriverDRI */ + "VDPAU", /* DRI2DriverVDPAU */ + }; + unsigned int i; + CARD8 cur_minor; + + if (info->version < 3) + return FALSE; + + if (!xf86VGAarbiterAllowDRI(pScreen)) { + xf86DrvMsg(pScreen->myNum, X_WARNING, + "[DRI2] Direct rendering is not supported when VGA arb is necessary for the device\n"); + return FALSE; + } + + if (!dixRegisterPrivateKey(&dri2ScreenPrivateKeyRec, PRIVATE_SCREEN, 0)) + return FALSE; + + if (!dixRegisterPrivateKey(&dri2WindowPrivateKeyRec, PRIVATE_WINDOW, 0)) + return FALSE; + + if (!dixRegisterPrivateKey(&dri2PixmapPrivateKeyRec, PRIVATE_PIXMAP, 0)) + return FALSE; + + ds = calloc(1, sizeof *ds); + if (!ds) + return FALSE; + + ds->screen = pScreen; + ds->fd = info->fd; + ds->deviceName = info->deviceName; + dri2_major = 1; + + ds->CreateBuffer = info->CreateBuffer; + ds->DestroyBuffer = info->DestroyBuffer; + ds->CopyRegion = info->CopyRegion; + + if (info->version >= 4) { + ds->ScheduleSwap = info->ScheduleSwap; + ds->ScheduleWaitMSC = info->ScheduleWaitMSC; + ds->GetMSC = info->GetMSC; + cur_minor = 3; + } else { + cur_minor = 1; + } + + if (info->version >= 5) { + ds->AuthMagic = info->AuthMagic; + } + + /* + * if the driver doesn't provide an AuthMagic function or the info struct + * version is too low, it relies on the old method (using libdrm) or fail + */ + if (!ds->AuthMagic) +#ifdef WITH_LIBDRM + ds->AuthMagic = drmAuthMagic; +#else + goto err_out; +#endif + + /* Initialize minor if needed and set to minimum provied by DDX */ + if (!dri2_minor || dri2_minor > cur_minor) + dri2_minor = cur_minor; + + if (info->version == 3 || info->numDrivers == 0) { + /* Driver too old: use the old-style driverName field */ + ds->numDrivers = 1; + ds->driverNames = malloc(sizeof(*ds->driverNames)); + if (!ds->driverNames) + goto err_out; + ds->driverNames[0] = info->driverName; + } else { + ds->numDrivers = info->numDrivers; + ds->driverNames = malloc(info->numDrivers * sizeof(*ds->driverNames)); + if (!ds->driverNames) + goto err_out; + memcpy(ds->driverNames, info->driverNames, + info->numDrivers * sizeof(*ds->driverNames)); + } + + dixSetPrivate(&pScreen->devPrivates, dri2ScreenPrivateKey, ds); + + ds->ConfigNotify = pScreen->ConfigNotify; + pScreen->ConfigNotify = DRI2ConfigNotify; + + xf86DrvMsg(pScreen->myNum, X_INFO, "[DRI2] Setup complete\n"); + for (i = 0; i < sizeof(driverTypeNames) / sizeof(driverTypeNames[0]); i++) { + if (i < ds->numDrivers && ds->driverNames[i]) { + xf86DrvMsg(pScreen->myNum, X_INFO, "[DRI2] %s driver: %s\n", + driverTypeNames[i], ds->driverNames[i]); + } + } + + return TRUE; + +err_out: + xf86DrvMsg(pScreen->myNum, X_WARNING, + "[DRI2] Initialization failed for info version %d.\n", info->version); + free(ds); + return FALSE; +} + +void +DRI2CloseScreen(ScreenPtr pScreen) +{ + DRI2ScreenPtr ds = DRI2GetScreen(pScreen); + + free(ds->driverNames); + free(ds); + dixSetPrivate(&pScreen->devPrivates, dri2ScreenPrivateKey, NULL); +} + +extern ExtensionModule dri2ExtensionModule; + +static pointer +DRI2Setup(pointer module, pointer opts, int *errmaj, int *errmin) +{ + static Bool setupDone = FALSE; + + dri2DrawableRes = CreateNewResourceType(DRI2DrawableGone, "DRI2Drawable"); + + if (!setupDone) + { + setupDone = TRUE; + LoadExtension(&dri2ExtensionModule, FALSE); + } + else + { + if (errmaj) + *errmaj = LDR_ONCEONLY; + } + + return (pointer) 1; +} + +static XF86ModuleVersionInfo DRI2VersRec = +{ + "dri2", + MODULEVENDORSTRING, + MODINFOSTRING1, + MODINFOSTRING2, + XORG_VERSION_CURRENT, + 1, 2, 0, + ABI_CLASS_EXTENSION, + ABI_EXTENSION_VERSION, + MOD_CLASS_NONE, + { 0, 0, 0, 0 } +}; + +_X_EXPORT XF86ModuleData dri2ModuleData = { &DRI2VersRec, DRI2Setup, NULL }; + +void +DRI2Version(int *major, int *minor) +{ + if (major != NULL) + *major = DRI2VersRec.majorversion; + + if (minor != NULL) + *minor = DRI2VersRec.minorversion; +} diff --git a/hw/xfree86/dri2/dri2.h b/hw/xfree86/dri2/dri2.h new file mode 100644 index 0000000..fe0bf6c --- /dev/null +++ b/hw/xfree86/dri2/dri2.h @@ -0,0 +1,287 @@ +/* + * Copyright © 2007 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Soft- + * ware"), to deal in the Software without restriction, including without + * limitation the rights to use, copy, modify, merge, publish, distribute, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, provided that the above copyright + * notice(s) and this permission notice appear in all copies of the Soft- + * ware and that both the above copyright notice(s) and this permission + * notice appear in supporting documentation. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL- + * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY + * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN + * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE- + * QUENTIAL 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 PERFOR- + * MANCE OF THIS SOFTWARE. + * + * Except as contained in this notice, the name of a copyright holder shall + * not be used in advertising or otherwise to promote the sale, use or + * other dealings in this Software without prior written authorization of + * the copyright holder. + * + * Authors: + * Kristian Høgsberg (krh@redhat.com) + */ + +#ifndef _DRI2_H_ +#define _DRI2_H_ + +#include <X11/extensions/dri2tokens.h> + +/* Version 2 structure (with format at the end) */ +typedef struct { + unsigned int attachment; + unsigned int name; + unsigned int pitch; + unsigned int cpp; + unsigned int flags; + unsigned int format; + void *driverPrivate; +} DRI2BufferRec, *DRI2BufferPtr; + +extern CARD8 dri2_major; /* version of DRI2 supported by DDX */ +extern CARD8 dri2_minor; + +typedef DRI2BufferRec DRI2Buffer2Rec, *DRI2Buffer2Ptr; +typedef void (*DRI2SwapEventPtr)(ClientPtr client, void *data, int type, + CARD64 ust, CARD64 msc, CARD64 sbc); + + +typedef DRI2BufferPtr (*DRI2CreateBuffersProcPtr)(DrawablePtr pDraw, + unsigned int *attachments, + int count); +typedef void (*DRI2DestroyBuffersProcPtr)(DrawablePtr pDraw, + DRI2BufferPtr buffers, + int count); +typedef void (*DRI2CopyRegionProcPtr)(DrawablePtr pDraw, + RegionPtr pRegion, + DRI2BufferPtr pDestBuffer, + DRI2BufferPtr pSrcBuffer); +typedef void (*DRI2WaitProcPtr)(WindowPtr pWin, + unsigned int sequence); +typedef int (*DRI2AuthMagicProcPtr)(int fd, uint32_t magic); + +/** + * Schedule a buffer swap + * + * This callback is used to support glXSwapBuffers and the OML_sync_control + * extension (see it for a description of the params). + * + * Drivers should queue an event for the frame count that satisfies the + * parameters passed in. If the event is in the future (i.e. the conditions + * aren't currently satisfied), the server may block the client at the next + * GLX request using DRI2WaitSwap. When the event arrives, drivers should call + * \c DRI2SwapComplete, which will handle waking the client and returning + * the appropriate data. + * + * The DDX is responsible for doing a flip, exchange, or blit of the swap + * when the corresponding event arrives. The \c DRI2CanFlip and + * \c DRI2CanExchange functions can be used as helpers for this purpose. + * + * \param client client pointer (used for block/unblock) + * \param pDraw drawable whose count we want + * \param pDestBuffer current front buffer + * \param pSrcBuffer current back buffer + * \param target_msc frame count to wait for + * \param divisor divisor for condition equation + * \param remainder remainder for division equation + * \param func function to call when the swap completes + * \param data data for the callback \p func. + */ +typedef int (*DRI2ScheduleSwapProcPtr)(ClientPtr client, + DrawablePtr pDraw, + DRI2BufferPtr pDestBuffer, + DRI2BufferPtr pSrcBuffer, + CARD64 *target_msc, + CARD64 divisor, + CARD64 remainder, + DRI2SwapEventPtr func, + void *data); +typedef DRI2BufferPtr (*DRI2CreateBufferProcPtr)(DrawablePtr pDraw, + unsigned int attachment, + unsigned int format); +typedef void (*DRI2DestroyBufferProcPtr)(DrawablePtr pDraw, + DRI2BufferPtr buffer); +/** + * Get current media stamp counter values + * + * This callback is used to support the SGI_video_sync and OML_sync_control + * extensions. + * + * Drivers should return the current frame counter and the timestamp from + * when the returned frame count was last incremented. + * + * The count should correspond to the screen where the drawable is currently + * visible. If the drawable isn't visible (e.g. redirected), the server + * should return BadDrawable to the client, pending GLX spec updates to + * define this behavior. + * + * \param pDraw drawable whose count we want + * \param ust timestamp from when the count was last incremented. + * \param mst current frame count + */ +typedef int (*DRI2GetMSCProcPtr)(DrawablePtr pDraw, CARD64 *ust, + CARD64 *msc); +/** + * Schedule a frame count related wait + * + * This callback is used to support the SGI_video_sync and OML_sync_control + * extensions. See those specifications for details on how to handle + * the divisor and remainder parameters. + * + * Drivers should queue an event for the frame count that satisfies the + * parameters passed in. If the event is in the future (i.e. the conditions + * aren't currently satisfied), the driver should block the client using + * \c DRI2BlockClient. When the event arrives, drivers should call + * \c DRI2WaitMSCComplete, which will handle waking the client and returning + * the appropriate data. + * + * \param client client pointer (used for block/unblock) + * \param pDraw drawable whose count we want + * \param target_msc frame count to wait for + * \param divisor divisor for condition equation + * \param remainder remainder for division equation + */ +typedef int (*DRI2ScheduleWaitMSCProcPtr)(ClientPtr client, + DrawablePtr pDraw, + CARD64 target_msc, + CARD64 divisor, + CARD64 remainder); + +typedef void (*DRI2InvalidateProcPtr)(DrawablePtr pDraw, + void *data); + +/** + * Version of the DRI2InfoRec structure defined in this header + */ +#define DRI2INFOREC_VERSION 5 + +typedef struct { + unsigned int version; /**< Version of this struct */ + int fd; + const char *driverName; + const char *deviceName; + + DRI2CreateBufferProcPtr CreateBuffer; + DRI2DestroyBufferProcPtr DestroyBuffer; + DRI2CopyRegionProcPtr CopyRegion; + DRI2WaitProcPtr Wait; + + /* added in version 4 */ + + DRI2ScheduleSwapProcPtr ScheduleSwap; + DRI2GetMSCProcPtr GetMSC; + DRI2ScheduleWaitMSCProcPtr ScheduleWaitMSC; + + /* number of drivers in the driverNames array */ + unsigned int numDrivers; + /* array of driver names, indexed by DRI2Driver* driver types */ + /* a name of NULL means that driver is not supported */ + const char * const *driverNames; + + /* added in version 5 */ + + DRI2AuthMagicProcPtr AuthMagic; +} DRI2InfoRec, *DRI2InfoPtr; + +extern _X_EXPORT int DRI2EventBase; + +extern _X_EXPORT Bool DRI2ScreenInit(ScreenPtr pScreen, + DRI2InfoPtr info); + +extern _X_EXPORT void DRI2CloseScreen(ScreenPtr pScreen); + +extern _X_EXPORT Bool DRI2HasSwapControl(ScreenPtr pScreen); + +extern _X_EXPORT Bool DRI2Connect(ScreenPtr pScreen, + unsigned int driverType, + int *fd, + const char **driverName, + const char **deviceName); + +extern _X_EXPORT Bool DRI2Authenticate(ScreenPtr pScreen, uint32_t magic); + +extern _X_EXPORT int DRI2CreateDrawable(ClientPtr client, + DrawablePtr pDraw, + XID id, + DRI2InvalidateProcPtr invalidate, + void *priv); + +extern _X_EXPORT void DRI2DestroyDrawable(DrawablePtr pDraw); + +extern _X_EXPORT DRI2BufferPtr *DRI2GetBuffers(DrawablePtr pDraw, + int *width, + int *height, + unsigned int *attachments, + int count, + int *out_count); + +extern _X_EXPORT int DRI2CopyRegion(DrawablePtr pDraw, + RegionPtr pRegion, + unsigned int dest, + unsigned int src); + +/** + * Determine the major and minor version of the DRI2 extension. + * + * Provides a mechanism to other modules (e.g., 2D drivers) to determine the + * version of the DRI2 extension. While it is possible to peek directly at + * the \c XF86ModuleData from a layered module, such a module will fail to + * load (due to an unresolved symbol) if the DRI2 extension is not loaded. + * + * \param major Location to store the major verion of the DRI2 extension + * \param minor Location to store the minor verion of the DRI2 extension + * + * \note + * This interface was added some time after the initial release of the DRI2 + * module. Layered modules that wish to use this interface must first test + * its existance by calling \c xf86LoaderCheckSymbol. + */ +extern _X_EXPORT void DRI2Version(int *major, int *minor); + +extern _X_EXPORT DRI2BufferPtr *DRI2GetBuffersWithFormat(DrawablePtr pDraw, + int *width, int *height, unsigned int *attachments, int count, + int *out_count); + +extern _X_EXPORT void DRI2SwapInterval(DrawablePtr pDrawable, int interval); +extern _X_EXPORT int DRI2SwapBuffers(ClientPtr client, DrawablePtr pDrawable, + CARD64 target_msc, CARD64 divisor, + CARD64 remainder, CARD64 *swap_target, + DRI2SwapEventPtr func, void *data); +extern _X_EXPORT Bool DRI2WaitSwap(ClientPtr client, DrawablePtr pDrawable); + +extern _X_EXPORT int DRI2GetMSC(DrawablePtr pDrawable, CARD64 *ust, + CARD64 *msc, CARD64 *sbc); +extern _X_EXPORT int DRI2WaitMSC(ClientPtr client, DrawablePtr pDrawable, + CARD64 target_msc, CARD64 divisor, + CARD64 remainder); +extern _X_EXPORT int ProcDRI2WaitMSCReply(ClientPtr client, CARD64 ust, + CARD64 msc, CARD64 sbc); +extern _X_EXPORT int DRI2WaitSBC(ClientPtr client, DrawablePtr pDraw, + CARD64 target_sbc); +extern _X_EXPORT Bool DRI2ThrottleClient(ClientPtr client, DrawablePtr pDraw); + +extern _X_EXPORT Bool DRI2CanFlip(DrawablePtr pDraw); + +extern _X_EXPORT Bool DRI2CanExchange(DrawablePtr pDraw); + +/* Note: use *only* for MSC related waits */ +extern _X_EXPORT void DRI2BlockClient(ClientPtr client, DrawablePtr pDraw); + +extern _X_EXPORT void DRI2SwapComplete(ClientPtr client, DrawablePtr pDraw, + int frame, unsigned int tv_sec, + unsigned int tv_usec, int type, + DRI2SwapEventPtr swap_complete, + void *swap_data); +extern _X_EXPORT void DRI2WaitMSCComplete(ClientPtr client, DrawablePtr pDraw, + int frame, unsigned int tv_sec, + unsigned int tv_usec); + +#endif diff --git a/hw/xfree86/dri2/dri2ext.c b/hw/xfree86/dri2/dri2ext.c new file mode 100644 index 0000000..4e48e65 --- /dev/null +++ b/hw/xfree86/dri2/dri2ext.c @@ -0,0 +1,650 @@ +/* + * Copyright © 2008 Red Hat, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Soft- + * ware"), to deal in the Software without restriction, including without + * limitation the rights to use, copy, modify, merge, publish, distribute, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, provided that the above copyright + * notice(s) and this permission notice appear in all copies of the Soft- + * ware and that both the above copyright notice(s) and this permission + * notice appear in supporting documentation. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL- + * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY + * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN + * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE- + * QUENTIAL 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 PERFOR- + * MANCE OF THIS SOFTWARE. + * + * Except as contained in this notice, the name of a copyright holder shall + * not be used in advertising or otherwise to promote the sale, use or + * other dealings in this Software without prior written authorization of + * the copyright holder. + * + * Authors: + * Kristian Høgsberg (krh@redhat.com) + */ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <X11/X.h> +#include <X11/Xproto.h> +#include <X11/extensions/dri2proto.h> +#include <X11/extensions/xfixeswire.h> +#include "dixstruct.h" +#include "scrnintstr.h" +#include "pixmapstr.h" +#include "extnsionst.h" +#include "xfixes.h" +#include "dri2.h" +#include "protocol-versions.h" + +/* The only xf86 include */ +#include "xf86Module.h" + +static ExtensionEntry *dri2Extension; + +static Bool +validDrawable(ClientPtr client, XID drawable, Mask access_mode, + DrawablePtr *pDrawable, int *status) +{ + *status = dixLookupDrawable(pDrawable, drawable, client, + M_DRAWABLE_WINDOW | M_DRAWABLE_PIXMAP, + access_mode); + if (*status != Success) { + client->errorValue = drawable; + return FALSE; + } + + return TRUE; +} + +static int +ProcDRI2QueryVersion(ClientPtr client) +{ + REQUEST(xDRI2QueryVersionReq); + xDRI2QueryVersionReply rep; + int n; + + if (client->swapped) + swaps(&stuff->length, n); + + REQUEST_SIZE_MATCH(xDRI2QueryVersionReq); + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + rep.majorVersion = dri2_major; + rep.minorVersion = dri2_minor; + + if (client->swapped) { + swaps(&rep.sequenceNumber, n); + swapl(&rep.length, n); + swapl(&rep.majorVersion, n); + swapl(&rep.minorVersion, n); + } + + WriteToClient(client, sizeof(xDRI2QueryVersionReply), &rep); + + return Success; +} + +static int +ProcDRI2Connect(ClientPtr client) +{ + REQUEST(xDRI2ConnectReq); + xDRI2ConnectReply rep; + DrawablePtr pDraw; + int fd, status; + const char *driverName; + const char *deviceName; + + REQUEST_SIZE_MATCH(xDRI2ConnectReq); + if (!validDrawable(client, stuff->window, DixGetAttrAccess, + &pDraw, &status)) + return status; + + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + rep.driverNameLength = 0; + rep.deviceNameLength = 0; + + if (!DRI2Connect(pDraw->pScreen, + stuff->driverType, &fd, &driverName, &deviceName)) + goto fail; + + rep.driverNameLength = strlen(driverName); + rep.deviceNameLength = strlen(deviceName); + rep.length = (rep.driverNameLength + 3) / 4 + + (rep.deviceNameLength + 3) / 4; + + fail: + WriteToClient(client, sizeof(xDRI2ConnectReply), &rep); + WriteToClient(client, rep.driverNameLength, driverName); + WriteToClient(client, rep.deviceNameLength, deviceName); + + return Success; +} + +static int +ProcDRI2Authenticate(ClientPtr client) +{ + REQUEST(xDRI2AuthenticateReq); + xDRI2AuthenticateReply rep; + DrawablePtr pDraw; + int status; + + REQUEST_SIZE_MATCH(xDRI2AuthenticateReq); + if (!validDrawable(client, stuff->window, DixGetAttrAccess, + &pDraw, &status)) + return status; + + rep.type = X_Reply; + rep.sequenceNumber = client->sequence; + rep.length = 0; + rep.authenticated = DRI2Authenticate(pDraw->pScreen, stuff->magic); + WriteToClient(client, sizeof(xDRI2AuthenticateReply), &rep); + + return Success; +} + +static void +DRI2InvalidateBuffersEvent(DrawablePtr pDraw, void *priv) +{ + xDRI2InvalidateBuffers event; + ClientPtr client = priv; + + event.type = DRI2EventBase + DRI2_InvalidateBuffers; + event.drawable = pDraw->id; + + WriteEventsToClient(client, 1, (xEvent *)&event); +} + +static int +ProcDRI2CreateDrawable(ClientPtr client) +{ + REQUEST(xDRI2CreateDrawableReq); + DrawablePtr pDrawable; + int status; + + REQUEST_SIZE_MATCH(xDRI2CreateDrawableReq); + + if (!validDrawable(client, stuff->drawable, DixAddAccess, + &pDrawable, &status)) + return status; + + status = DRI2CreateDrawable(client, pDrawable, stuff->drawable, + DRI2InvalidateBuffersEvent, client); + if (status != Success) + return status; + + return Success; +} + +static int +ProcDRI2DestroyDrawable(ClientPtr client) +{ + REQUEST(xDRI2DestroyDrawableReq); + DrawablePtr pDrawable; + int status; + + REQUEST_SIZE_MATCH(xDRI2DestroyDrawableReq); + if (!validDrawable(client, stuff->drawable, DixRemoveAccess, + &pDrawable, &status)) + return status; + + return Success; +} + + +static int +send_buffers_reply(ClientPtr client, DrawablePtr pDrawable, + DRI2BufferPtr *buffers, int count, int width, int height) +{ + xDRI2GetBuffersReply rep; + int skip = 0; + int i; + + if (buffers == NULL) + return BadAlloc; + + if (pDrawable->type == DRAWABLE_WINDOW) { + for (i = 0; i < count; i++) { + /* Do not send the real front buffer of a window to the client. + */ + if (buffers[i]->attachment == DRI2BufferFrontLeft) { + skip++; + continue; + } + } + } + + rep.type = X_Reply; + rep.length = (count - skip) * sizeof(xDRI2Buffer) / 4; + rep.sequenceNumber = client->sequence; + rep.width = width; + rep.height = height; + rep.count = count - skip; + WriteToClient(client, sizeof(xDRI2GetBuffersReply), &rep); + + for (i = 0; i < count; i++) { + xDRI2Buffer buffer; + + /* Do not send the real front buffer of a window to the client. + */ + if ((pDrawable->type == DRAWABLE_WINDOW) + && (buffers[i]->attachment == DRI2BufferFrontLeft)) { + continue; + } + + buffer.attachment = buffers[i]->attachment; + buffer.name = buffers[i]->name; + buffer.pitch = buffers[i]->pitch; + buffer.cpp = buffers[i]->cpp; + buffer.flags = buffers[i]->flags; + WriteToClient(client, sizeof(xDRI2Buffer), &buffer); + } + return Success; +} + + +static int +ProcDRI2GetBuffers(ClientPtr client) +{ + REQUEST(xDRI2GetBuffersReq); + DrawablePtr pDrawable; + DRI2BufferPtr *buffers; + int status, width, height, count; + unsigned int *attachments; + + REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * 4); + if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess, + &pDrawable, &status)) + return status; + + if (DRI2ThrottleClient(client, pDrawable)) + return Success; + + attachments = (unsigned int *) &stuff[1]; + buffers = DRI2GetBuffers(pDrawable, &width, &height, + attachments, stuff->count, &count); + + + return send_buffers_reply(client, pDrawable, buffers, count, width, height); + +} + +static int +ProcDRI2GetBuffersWithFormat(ClientPtr client) +{ + REQUEST(xDRI2GetBuffersReq); + DrawablePtr pDrawable; + DRI2BufferPtr *buffers; + int status, width, height, count; + unsigned int *attachments; + + REQUEST_FIXED_SIZE(xDRI2GetBuffersReq, stuff->count * (2 * 4)); + if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess, + &pDrawable, &status)) + return status; + + if (DRI2ThrottleClient(client, pDrawable)) + return Success; + + attachments = (unsigned int *) &stuff[1]; + buffers = DRI2GetBuffersWithFormat(pDrawable, &width, &height, + attachments, stuff->count, &count); + + return send_buffers_reply(client, pDrawable, buffers, count, width, height); +} + +static int +ProcDRI2CopyRegion(ClientPtr client) +{ + REQUEST(xDRI2CopyRegionReq); + xDRI2CopyRegionReply rep; + DrawablePtr pDrawable; + int status; + RegionPtr pRegion; + + REQUEST_SIZE_MATCH(xDRI2CopyRegionReq); + + if (!validDrawable(client, stuff->drawable, DixWriteAccess, + &pDrawable, &status)) + return status; + + VERIFY_REGION(pRegion, stuff->region, client, DixReadAccess); + + status = DRI2CopyRegion(pDrawable, pRegion, stuff->dest, stuff->src); + if (status != Success) + return status; + + /* CopyRegion needs to be a round trip to make sure the X server + * queues the swap buffer rendering commands before the DRI client + * continues rendering. The reply has a bitmask to signal the + * presense of optional return values as well, but we're not using + * that yet. + */ + + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + + WriteToClient(client, sizeof(xDRI2CopyRegionReply), &rep); + + return Success; +} + +static void +load_swap_reply(xDRI2SwapBuffersReply *rep, CARD64 sbc) +{ + rep->swap_hi = sbc >> 32; + rep->swap_lo = sbc & 0xffffffff; +} + +static CARD64 +vals_to_card64(CARD32 lo, CARD32 hi) +{ + return (CARD64)hi << 32 | lo; +} + +static void +DRI2SwapEvent(ClientPtr client, void *data, int type, CARD64 ust, CARD64 msc, + CARD64 sbc) +{ + xDRI2BufferSwapComplete event; + DrawablePtr pDrawable = data; + + event.type = DRI2EventBase + DRI2_BufferSwapComplete; + event.event_type = type; + event.drawable = pDrawable->id; + event.ust_hi = (CARD64)ust >> 32; + event.ust_lo = ust & 0xffffffff; + event.msc_hi = (CARD64)msc >> 32; + event.msc_lo = msc & 0xffffffff; + event.sbc_hi = (CARD64)sbc >> 32; + event.sbc_lo = sbc & 0xffffffff; + + WriteEventsToClient(client, 1, (xEvent *)&event); +} + +static int +ProcDRI2SwapBuffers(ClientPtr client) +{ + REQUEST(xDRI2SwapBuffersReq); + xDRI2SwapBuffersReply rep; + DrawablePtr pDrawable; + CARD64 target_msc, divisor, remainder, swap_target; + int status; + + REQUEST_SIZE_MATCH(xDRI2SwapBuffersReq); + + if (!validDrawable(client, stuff->drawable, + DixReadAccess | DixWriteAccess, &pDrawable, &status)) + return status; + + /* + * Ensures an out of control client can't exhaust our swap queue, and + * also orders swaps. + */ + if (DRI2ThrottleClient(client, pDrawable)) + return Success; + + target_msc = vals_to_card64(stuff->target_msc_lo, stuff->target_msc_hi); + divisor = vals_to_card64(stuff->divisor_lo, stuff->divisor_hi); + remainder = vals_to_card64(stuff->remainder_lo, stuff->remainder_hi); + + status = DRI2SwapBuffers(client, pDrawable, target_msc, divisor, remainder, + &swap_target, DRI2SwapEvent, pDrawable); + if (status != Success) + return BadDrawable; + + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + load_swap_reply(&rep, swap_target); + + WriteToClient(client, sizeof(xDRI2SwapBuffersReply), &rep); + + return Success; +} + +static void +load_msc_reply(xDRI2MSCReply *rep, CARD64 ust, CARD64 msc, CARD64 sbc) +{ + rep->ust_hi = ust >> 32; + rep->ust_lo = ust & 0xffffffff; + rep->msc_hi = msc >> 32; + rep->msc_lo = msc & 0xffffffff; + rep->sbc_hi = sbc >> 32; + rep->sbc_lo = sbc & 0xffffffff; +} + +static int +ProcDRI2GetMSC(ClientPtr client) +{ + REQUEST(xDRI2GetMSCReq); + xDRI2MSCReply rep; + DrawablePtr pDrawable; + CARD64 ust, msc, sbc; + int status; + + REQUEST_SIZE_MATCH(xDRI2GetMSCReq); + + if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable, + &status)) + return status; + + status = DRI2GetMSC(pDrawable, &ust, &msc, &sbc); + if (status != Success) + return status; + + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + load_msc_reply(&rep, ust, msc, sbc); + + WriteToClient(client, sizeof(xDRI2MSCReply), &rep); + + return Success; +} + +static int +ProcDRI2WaitMSC(ClientPtr client) +{ + REQUEST(xDRI2WaitMSCReq); + DrawablePtr pDrawable; + CARD64 target, divisor, remainder; + int status; + + /* FIXME: in restart case, client may be gone at this point */ + + REQUEST_SIZE_MATCH(xDRI2WaitMSCReq); + + if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable, + &status)) + return status; + + target = vals_to_card64(stuff->target_msc_lo, stuff->target_msc_hi); + divisor = vals_to_card64(stuff->divisor_lo, stuff->divisor_hi); + remainder = vals_to_card64(stuff->remainder_lo, stuff->remainder_hi); + + status = DRI2WaitMSC(client, pDrawable, target, divisor, remainder); + if (status != Success) + return status; + + return Success; +} + +int +ProcDRI2WaitMSCReply(ClientPtr client, CARD64 ust, CARD64 msc, CARD64 sbc) +{ + xDRI2MSCReply rep; + + rep.type = X_Reply; + rep.length = 0; + rep.sequenceNumber = client->sequence; + load_msc_reply(&rep, ust, msc, sbc); + + WriteToClient(client, sizeof(xDRI2MSCReply), &rep); + + return Success; +} + +static int +ProcDRI2SwapInterval(ClientPtr client) +{ + REQUEST(xDRI2SwapIntervalReq); + DrawablePtr pDrawable; + int status; + + /* FIXME: in restart case, client may be gone at this point */ + + REQUEST_SIZE_MATCH(xDRI2SwapIntervalReq); + + if (!validDrawable(client, stuff->drawable, DixReadAccess | DixWriteAccess, + &pDrawable, &status)) + return status; + + DRI2SwapInterval(pDrawable, stuff->interval); + + return Success; +} + +static int +ProcDRI2WaitSBC(ClientPtr client) +{ + REQUEST(xDRI2WaitSBCReq); + DrawablePtr pDrawable; + CARD64 target; + int status; + + REQUEST_SIZE_MATCH(xDRI2WaitSBCReq); + + if (!validDrawable(client, stuff->drawable, DixReadAccess, &pDrawable, + &status)) + return status; + + target = vals_to_card64(stuff->target_sbc_lo, stuff->target_sbc_hi); + status = DRI2WaitSBC(client, pDrawable, target); + + return status; +} + +static int +ProcDRI2Dispatch (ClientPtr client) +{ + REQUEST(xReq); + + switch (stuff->data) { + case X_DRI2QueryVersion: + return ProcDRI2QueryVersion(client); + } + + if (!LocalClient(client)) + return BadRequest; + + switch (stuff->data) { + case X_DRI2Connect: + return ProcDRI2Connect(client); + case X_DRI2Authenticate: + return ProcDRI2Authenticate(client); + case X_DRI2CreateDrawable: + return ProcDRI2CreateDrawable(client); + case X_DRI2DestroyDrawable: + return ProcDRI2DestroyDrawable(client); + case X_DRI2GetBuffers: + return ProcDRI2GetBuffers(client); + case X_DRI2CopyRegion: + return ProcDRI2CopyRegion(client); + case X_DRI2GetBuffersWithFormat: + return ProcDRI2GetBuffersWithFormat(client); + case X_DRI2SwapBuffers: + return ProcDRI2SwapBuffers(client); + case X_DRI2GetMSC: + return ProcDRI2GetMSC(client); + case X_DRI2WaitMSC: + return ProcDRI2WaitMSC(client); + case X_DRI2WaitSBC: + return ProcDRI2WaitSBC(client); + case X_DRI2SwapInterval: + return ProcDRI2SwapInterval(client); + default: + return BadRequest; + } +} + +static int +SProcDRI2Connect(ClientPtr client) +{ + REQUEST(xDRI2ConnectReq); + xDRI2ConnectReply rep; + int n; + + /* If the client is swapped, it's not local. Talk to the hand. */ + + swaps(&stuff->length, n); + if (sizeof(*stuff) / 4 != client->req_len) + return BadLength; + + rep.sequenceNumber = client->sequence; + swaps(&rep.sequenceNumber, n); + rep.length = 0; + rep.driverNameLength = 0; + rep.deviceNameLength = 0; + + return Success; +} + +static int +SProcDRI2Dispatch (ClientPtr client) +{ + REQUEST(xReq); + + /* + * Only local clients are allowed DRI access, but remote clients + * still need these requests to find out cleanly. + */ + switch (stuff->data) + { + case X_DRI2QueryVersion: + return ProcDRI2QueryVersion(client); + case X_DRI2Connect: + return SProcDRI2Connect(client); + default: + return BadRequest; + } +} + +int DRI2EventBase; + +static void +DRI2ExtensionInit(void) +{ + dri2Extension = AddExtension(DRI2_NAME, + DRI2NumberEvents, + DRI2NumberErrors, + ProcDRI2Dispatch, + SProcDRI2Dispatch, + NULL, + StandardMinorOpcode); + + DRI2EventBase = dri2Extension->eventBase; +} + +extern Bool noDRI2Extension; + +_X_HIDDEN ExtensionModule dri2ExtensionModule = { + DRI2ExtensionInit, + DRI2_NAME, + &noDRI2Extension, + NULL, + NULL +}; |