diff options
Diffstat (limited to 'miext/rootless')
| -rw-r--r-- | miext/rootless/Makefile.am | 16 | ||||
| -rw-r--r-- | miext/rootless/Makefile.in | 716 | ||||
| -rw-r--r-- | miext/rootless/README.txt | 334 | ||||
| -rw-r--r-- | miext/rootless/rootless.h | 368 | ||||
| -rw-r--r-- | miext/rootless/rootlessCommon.c | 448 | ||||
| -rw-r--r-- | miext/rootless/rootlessCommon.h | 290 | ||||
| -rw-r--r-- | miext/rootless/rootlessConfig.h | 62 | ||||
| -rw-r--r-- | miext/rootless/rootlessGC.c | 1460 | ||||
| -rw-r--r-- | miext/rootless/rootlessScreen.c | 755 | ||||
| -rw-r--r-- | miext/rootless/rootlessValTree.c | 623 | ||||
| -rw-r--r-- | miext/rootless/rootlessWindow.c | 1637 | ||||
| -rw-r--r-- | miext/rootless/rootlessWindow.h | 60 |
12 files changed, 6769 insertions, 0 deletions
diff --git a/miext/rootless/Makefile.am b/miext/rootless/Makefile.am new file mode 100644 index 0000000..c97bebe --- /dev/null +++ b/miext/rootless/Makefile.am @@ -0,0 +1,16 @@ +AM_CFLAGS = $(DIX_CFLAGS) $(XSERVER_CFLAGS) + +noinst_LTLIBRARIES = librootless.la +librootless_la_SOURCES = \ + rootlessCommon.c \ + rootlessGC.c \ + rootlessScreen.c \ + rootlessValTree.c \ + rootlessWindow.c + +EXTRA_DIST = \ + README.txt \ + rootless.h \ + rootlessCommon.h \ + rootlessConfig.h \ + rootlessWindow.h diff --git a/miext/rootless/Makefile.in b/miext/rootless/Makefile.in new file mode 100644 index 0000000..5a3821b --- /dev/null +++ b/miext/rootless/Makefile.in @@ -0,0 +1,716 @@ +# 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 = miext/rootless +DIST_COMMON = $(srcdir)/Makefile.am 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dvi-am html html-am info info-am \ + install install-am install-data install-data-am install-dvi \ + install-dvi-am install-exec install-exec-am install-html \ + install-html-am install-info install-info-am install-man \ + install-pdf install-pdf-am install-ps install-ps-am \ + install-strip installcheck installcheck-am installdirs \ + maintainer-clean maintainer-clean-generic mostlyclean \ + mostlyclean-compile mostlyclean-generic mostlyclean-libtool \ + pdf pdf-am ps ps-am tags uninstall uninstall-am + + +# 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/miext/rootless/README.txt b/miext/rootless/README.txt new file mode 100644 index 0000000..754715d --- /dev/null +++ b/miext/rootless/README.txt @@ -0,0 +1,334 @@ + Generic Rootless Layer + Version 1.0 + July 13, 2004 + + Torrey T. Lyons + torrey@xfree86.org + + +Introduction + + The generic rootless layer allows an X server to be implemented +on top of another window server in a cooperative manner. This allows the +X11 windows and native windows of the underlying window server to +coexist on the same screen. The layer is called "rootless" because the root +window of the X server is generally not drawn. Instead, each top-level +child of the root window is represented as a separate on-screen window by +the underlying window server. The layer is referred to as "generic" +because it abstracts away the details of the underlying window system and +contains code that is useful for any rootless X server. The code for the +generic rootless layer is located in xc/programs/Xserver/miext/rootless. To +build a complete rootless X server requires a specific rootless +implementation, which provides functions that allow the generic rootless +layer to interact with the underlying window system. + + +Concepts + + In the context of a rootless X server the term window is used to +mean many fundamentally different things. For X11 a window is a DDX +resource that describes a visible, or potentially visible, rectangle on the +screen. A top-level window is a direct child of the root window. To avoid +confusion, an on-screen native window of the underlying window system +is referred to as a "frame". The generic rootless layer associates each +mapped top-level X11 window with a frame. An X11 window may be said +to be "framed" if it or its top-level parent is represented by a frame. + + The generic rootless layer models each frame as being backed at +all times by a backing buffer, which is periodically flushed to the screen. +If the underlying window system does not provide a backing buffer for +frames, this must be done by the rootless implementation. The generic +rootless layer model does not assume it always has access to the frames' +backing buffers. Any drawing to the buffer will be proceeded by a call to +the rootless implementation's StartDrawing() function and StopDrawing() +will be called when the drawing is concluded. The address of the frame's +backing buffer is returned by the StartDrawing() function and it can +change between successive calls. + + Because each frame is assumed to have a backing buffer, the +generic rootless layer will stop Expose events being generated when the +regions of visibility of a frame change on screen. This is similar to backing +store, but backing buffers are different in that they always store a copy of +the entire window contents, not just the obscured portions. The price paid +in increased memory consumption is made up by the greatly decreased +complexity in not having to track and record regions as they are obscured. + + +Rootless Implementation + + The specifics of the underlying window system are provided to the +generic rootless layer through rootless implementation functions, compile- +time options, and runtime parameters. The rootless implementation +functions are a list of functions that allow the generic rootless layer to +perform operations such as creating, destroying, moving, and resizing +frames. Some of the implementation functions are optional. A detailed +description of the rootless implementation functions is provided in +Appendix A. + + By design, a rootless implementation should only have to include +the rootless.h header file. The rootlessCommon.h file contains definitions +internal to the generic rootless layer. (If you find you need to use +rootlessCommon.h in your implementation, let the generic rootless layer +maintainers know. This could be an area where the generic rootless layer +should be generalized.) A rootless implementation should also modify +rootlessConfig.h to specify compile time options for its platform. + + The following compile-time options are defined in +rootlessConfig.h: + + o ROOTLESS_PROTECT_ALPHA: By default for a color bit depth of 24 and + 32 bits per pixel, fb will overwrite the "unused" 8 bits to optimize + drawing speed. If this is true, the alpha channel of frames is + protected and is not modified when drawing to them. The bits + containing the alpha channel are defined by the macro + RootlessAlphaMask(bpp), which should return a bit mask for + various bits per pixel. + + o ROOTLESS_REDISPLAY_DELAY: Time in milliseconds between updates to + the underlying window server. Most operations will be buffered until + this time has expired. + + o ROOTLESS_RESIZE_GRAVITY: If the underlying window system supports it, + some frame resizes can be optimized by relying on the frame contents + maintaining a particular gravity during the resize. In this way less + of the frame contents need to be preserved by the generic rootless + layer. If true, the generic rootless layer will pass gravity hints + during resizing and rely on the frame contents being preserved + accordingly. + + The following runtime options are defined in rootless.h: + + o rootlessGlobalOffsetX, rootlessGlobalOffsetY: These specify the global + offset that is applied to all screens when converting from + screen-local to global coordinates. + + o rootless_CopyBytes_threshold, rootless_CopyWindow_threshold: + The minimum number of bytes or pixels for which to use the rootless + implementation's respective acceleration function. The rootless + acceleration functions are all optional so these will only be used + if the respective acceleration function pointer is not NULL. + + +Accelerated Drawing + + The rootless implementation typically does not have direct access +to the hardware. Its access to the graphics hardware is generally through +the API of the underlying window system. This underlying API may not +overlap well with the X11 drawing primitives. The generic rootless layer +falls back to using fb for all its 2-D drawing. Providing optional rootless +implementation acceleration functions can accelerate some graphics +primitives and some window functions. Typically calling through to the +underlying window systems API will not speed up these operations for +small enough areas. The rootless_*_threshold runtime options allow the +rootless implementation to provide hints for when the acceleration +functions should be used instead of fb. + + +Alpha Channel Protection + + If the bits per pixel is greater then the color bit depth, the contents +of the extra bits are undefined by the X11 protocol. Some window systems +will use these extra bits as an alpha channel. The generic rootless layer can +be configured to protect these bits and make sure they are not modified by +other parts of the X server. To protect the alpha channel +ROOTLESS_PROTECT_ALPHA and RootlessAlphaMask(bpp) must be +set appropriately as described under the compile time options. This +ensures that the X11 graphics primitives do not overwrite the alpha +channel in an attempt to optimize drawing. In addition, the window +functions PaintWindow() and Composite() must be replaced by alpha +channel safe variants. These are provided in rootless/safeAlpha. + + +Credits + + The generic rootless layer was originally conceived and developed +by Greg Parker as part of the XDarwin X server on Mac OS X. John +Harper made later optimizations to this code but removed its generic +independence of the underlying window system. Torrey T. Lyons +reintroduced the generic abstractions and made the rootless code suitable +for use by other X servers. + + +Appendix A: Rootless Implementation Functions + + The rootless implementation functions are defined in rootless.h. It +is intended that rootless.h contains the complete interface that is needed by +rootless implementations. The definitions contained in rootlessCommon.h +are intended for internal use by the generic rootless layer and are more +likely to change. + + Most of these functions take a RootlessFrameID as a parameter. +The RootlessFrameID is an opaque object that is returned by the +implementation's CreateFrame() function. The generic rootless layer does +not use this frame id other than to pass it back to the rootless +implementation to indicate the frame to operate on. + +/* + * Create a new frame. + * The frame is created unmapped. + * + * pFrame RootlessWindowPtr for this frame should be completely + * initialized before calling except for pFrame->wid, which + * is set by this function. + * pScreen Screen on which to place the new frame + * newX, newY Position of the frame. + * pNewShape Shape for the frame (in frame-local coordinates). NULL for + * unshaped frames. + */ +typedef Bool (*RootlessCreateFrameProc) + (RootlessWindowPtr pFrame, ScreenPtr pScreen, int newX, int newY, + RegionPtr pNewShape); + +/* + * Destroy a frame. + * Drawing is stopped and all updates are flushed before this is called. + * + * wid Frame id + */ +typedef void (*RootlessDestroyFrameProc) + (RootlessFrameID wid); + +/* + * Move a frame on screen. + * Drawing is stopped and all updates are flushed before this is called. + * + * wid Frame id + * pScreen Screen to move the new frame to + * newX, newY New position of the frame + */ +typedef void (*RootlessMoveFrameProc) + (RootlessFrameID wid, ScreenPtr pScreen, int newX, int newY); + +/* + * Resize and move a frame. + * Drawing is stopped and all updates are flushed before this is called. + * + * wid Frame id + * pScreen Screen to move the new frame to + * newX, newY New position of the frame + * newW, newH New size of the frame + * gravity Gravity for window contents (rl_gravity_enum). This is always + * RL_GRAVITY_NONE unless ROOTLESS_RESIZE_GRAVITY is set. + */ +typedef void (*RootlessResizeFrameProc) + (RootlessFrameID wid, ScreenPtr pScreen, + int newX, int newY, unsigned int newW, unsigned int newH, + unsigned int gravity); + +/* + * Change frame ordering (AKA stacking, layering). + * Drawing is stopped before this is called. Unmapped frames are mapped by + * setting their ordering. + * + * wid Frame id + * nextWid Frame id of frame that is now above this one or NULL if this + * frame is at the top. + */ +typedef void (*RootlessRestackFrameProc) + (RootlessFrameID wid, RootlessFrameID nextWid); + +/* + * Change frame's shape. + * Drawing is stopped before this is called. + * + * wid Frame id + * pNewShape New shape for the frame (in frame-local coordinates) + * or NULL if now unshaped. + */ +typedef void (*RootlessReshapeFrameProc) + (RootlessFrameID wid, RegionPtr pNewShape); + +/* + * Unmap a frame. + * + * wid Frame id + */ +typedef void (*RootlessUnmapFrameProc) + (RootlessFrameID wid); + +/* + * Start drawing to a frame. + * Prepare a frame for direct access to its backing buffer. + * + * wid Frame id + * pixelData Address of the backing buffer (returned) + * bytesPerRow Width in bytes of the backing buffer (returned) + */ +typedef void (*RootlessStartDrawingProc) + (RootlessFrameID wid, char **pixelData, int *bytesPerRow); + +/* + * Stop drawing to a frame. + * No drawing to the frame's backing buffer will occur until drawing + * is started again. + * + * wid Frame id + * flush Flush drawing updates for this frame to the screen. + */ +typedef void (*RootlessStopDrawingProc) + (RootlessFrameID wid, Bool flush); + +/* + * Flush drawing updates to the screen. + * Drawing is stopped before this is called. + * + * wid Frame id + * pDamage Region containing all the changed pixels in frame-local + * coordinates. This is clipped to the window's clip. + */ +typedef void (*RootlessUpdateRegionProc) + (RootlessFrameID wid, RegionPtr pDamage); + +/* + * Mark damaged rectangles as requiring redisplay to screen. + * + * wid Frame id + * nrects Number of damaged rectangles + * rects Array of damaged rectangles in frame-local coordinates + * shift_x, Vector to shift rectangles by + * shift_y + */ +typedef void (*RootlessDamageRectsProc) + (RootlessFrameID wid, int nrects, const BoxRec *rects, + int shift_x, int shift_y); + +/* + * Switch the window associated with a frame. (Optional) + * When a framed window is reparented, the frame is resized and set to + * use the new top-level parent. If defined this function will be called + * afterwards for implementation specific bookkeeping. + * + * pFrame Frame whose window has switched + * oldWin Previous window wrapped by this frame + */ +typedef void (*RootlessSwitchWindowProc) + (RootlessWindowPtr pFrame, WindowPtr oldWin); + +/* + * Copy bytes. (Optional) + * Source and destinate may overlap and the right thing should happen. + * + * width Bytes to copy per row + * height Number of rows + * src Source data + * srcRowBytes Width of source in bytes + * dst Destination data + * dstRowBytes Width of destination in bytes + */ +typedef void (*RootlessCopyBytesProc) + (unsigned int width, unsigned int height, + const void *src, unsigned int srcRowBytes, + void *dst, unsigned int dstRowBytes); + +/* + * Copy area in frame to another part of frame. (Optional) + * + * wid Frame id + * dstNrects Number of rectangles to copy + * dstRects Array of rectangles to copy + * dx, dy Number of pixels away to copy area + */ +typedef void (*RootlessCopyWindowProc) + (RootlessFrameID wid, int dstNrects, const BoxRec *dstRects, + int dx, int dy); + diff --git a/miext/rootless/rootless.h b/miext/rootless/rootless.h new file mode 100644 index 0000000..3d4a1b0 --- /dev/null +++ b/miext/rootless/rootless.h @@ -0,0 +1,368 @@ +/* + * External interface to generic rootless mode + */ +/* + * Copyright (c) 2001 Greg Parker. All Rights Reserved. + * Copyright (c) 2002-2003 Torrey T. Lyons. All Rights Reserved. + * + * 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 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 ABOVE LISTED COPYRIGHT HOLDER(S) 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. + * + * Except as contained in this notice, the name(s) of the above copyright + * holders shall not be used in advertising or otherwise to promote the sale, + * use or other dealings in this Software without prior written authorization. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#ifndef _ROOTLESS_H +#define _ROOTLESS_H + +#include "rootlessConfig.h" +#include "mi.h" +#include "gcstruct.h" + +/* + Each top-level rootless window has a one-to-one correspondence to a physical + on-screen window. The physical window is refered to as a "frame". + */ + +typedef void * RootlessFrameID; + +/* + * RootlessWindowRec + * This structure stores the per-frame data used by the rootless code. + * Each top-level X window has one RootlessWindowRec associated with it. + */ +typedef struct _RootlessWindowRec { + // Position and size includes the window border + // Position is in per-screen coordinates + int x, y; + unsigned int width, height; + unsigned int borderWidth; + int level; + + RootlessFrameID wid; // implementation specific frame id + WindowPtr win; // underlying X window + + // Valid only when drawing (ie. is_drawing is set) + char *pixelData; + int bytesPerRow; + + PixmapPtr pixmap; + + unsigned int is_drawing :1; // Currently drawing? + unsigned int is_reorder_pending :1; + unsigned int is_offscreen :1; + unsigned int is_obscured :1; +} RootlessWindowRec, *RootlessWindowPtr; + + +/* Offset for screen-local to global coordinate transforms */ +extern int rootlessGlobalOffsetX; +extern int rootlessGlobalOffsetY; + +/* The minimum number of bytes or pixels for which to use the + implementation's accelerated functions. */ +extern unsigned int rootless_CopyBytes_threshold; +extern unsigned int rootless_CopyWindow_threshold; + +/* Gravity for window contents during resizing */ +enum rl_gravity_enum { + RL_GRAVITY_NONE = 0, /* no gravity, fill everything */ + RL_GRAVITY_NORTH_WEST = 1, /* anchor to top-left corner */ + RL_GRAVITY_NORTH_EAST = 2, /* anchor to top-right corner */ + RL_GRAVITY_SOUTH_EAST = 3, /* anchor to bottom-right corner */ + RL_GRAVITY_SOUTH_WEST = 4, /* anchor to bottom-left corner */ +}; + + +/*------------------------------------------ + Rootless Implementation Functions + ------------------------------------------*/ + +/* + * Create a new frame. + * The frame is created unmapped. + * + * pFrame RootlessWindowPtr for this frame should be completely + * initialized before calling except for pFrame->wid, which + * is set by this function. + * pScreen Screen on which to place the new frame + * newX, newY Position of the frame. + * pNewShape Shape for the frame (in frame-local coordinates). NULL for + * unshaped frames. + */ +typedef Bool (*RootlessCreateFrameProc) + (RootlessWindowPtr pFrame, ScreenPtr pScreen, int newX, int newY, + RegionPtr pNewShape); + +/* + * Destroy a frame. + * Drawing is stopped and all updates are flushed before this is called. + * + * wid Frame id + */ +typedef void (*RootlessDestroyFrameProc) + (RootlessFrameID wid); + +/* + * Move a frame on screen. + * Drawing is stopped and all updates are flushed before this is called. + * + * wid Frame id + * pScreen Screen to move the new frame to + * newX, newY New position of the frame + */ +typedef void (*RootlessMoveFrameProc) + (RootlessFrameID wid, ScreenPtr pScreen, int newX, int newY); + +/* + * Resize and move a frame. + * Drawing is stopped and all updates are flushed before this is called. + * + * wid Frame id + * pScreen Screen to move the new frame to + * newX, newY New position of the frame + * newW, newH New size of the frame + * gravity Gravity for window contents (rl_gravity_enum). This is always + * RL_GRAVITY_NONE unless ROOTLESS_RESIZE_GRAVITY is set. + */ +typedef void (*RootlessResizeFrameProc) + (RootlessFrameID wid, ScreenPtr pScreen, + int newX, int newY, unsigned int newW, unsigned int newH, + unsigned int gravity); + +/* + * Change frame ordering (AKA stacking, layering). + * Drawing is stopped before this is called. Unmapped frames are mapped by + * setting their ordering. + * + * wid Frame id + * nextWid Frame id of frame that is now above this one or NULL if this + * frame is at the top. + */ +typedef void (*RootlessRestackFrameProc) + (RootlessFrameID wid, RootlessFrameID nextWid); + +/* + * Change frame's shape. + * Drawing is stopped before this is called. + * + * wid Frame id + * pNewShape New shape for the frame (in frame-local coordinates) + * or NULL if now unshaped. + */ +typedef void (*RootlessReshapeFrameProc) + (RootlessFrameID wid, RegionPtr pNewShape); + +/* + * Unmap a frame. + * + * wid Frame id + */ +typedef void (*RootlessUnmapFrameProc) + (RootlessFrameID wid); + +/* + * Start drawing to a frame. + * Prepare a frame for direct access to its backing buffer. + * + * wid Frame id + * pixelData Address of the backing buffer (returned) + * bytesPerRow Width in bytes of the backing buffer (returned) + */ +typedef void (*RootlessStartDrawingProc) + (RootlessFrameID wid, char **pixelData, int *bytesPerRow); + +/* + * Stop drawing to a frame. + * No drawing to the frame's backing buffer will occur until drawing + * is started again. + * + * wid Frame id + * flush Flush drawing updates for this frame to the screen. + */ +typedef void (*RootlessStopDrawingProc) + (RootlessFrameID wid, Bool flush); + +/* + * Flush drawing updates to the screen. + * Drawing is stopped before this is called. + * + * wid Frame id + * pDamage Region containing all the changed pixels in frame-lcoal + * coordinates. This is clipped to the window's clip. + */ +typedef void (*RootlessUpdateRegionProc) + (RootlessFrameID wid, RegionPtr pDamage); + +/* + * Mark damaged rectangles as requiring redisplay to screen. + * + * wid Frame id + * nrects Number of damaged rectangles + * rects Array of damaged rectangles in frame-local coordinates + * shift_x, Vector to shift rectangles by + * shift_y + */ +typedef void (*RootlessDamageRectsProc) + (RootlessFrameID wid, int nrects, const BoxRec *rects, + int shift_x, int shift_y); + +/* + * Switch the window associated with a frame. (Optional) + * When a framed window is reparented, the frame is resized and set to + * use the new top-level parent. If defined this function will be called + * afterwards for implementation specific bookkeeping. + * + * pFrame Frame whose window has switched + * oldWin Previous window wrapped by this frame + */ +typedef void (*RootlessSwitchWindowProc) + (RootlessWindowPtr pFrame, WindowPtr oldWin); + +/* + * Check if window should be reordered. (Optional) + * The underlying window system may animate windows being ordered in. + * We want them to be mapped but remain ordered out until the animation + * completes. If defined this function will be called to check if a + * framed window should be reordered now. If this function returns + * FALSE, the window will still be mapped from the X11 perspective, but + * the RestackFrame function will not be called for its frame. + * + * pFrame Frame to reorder + */ +typedef Bool (*RootlessDoReorderWindowProc) + (RootlessWindowPtr pFrame); + +/* + * Copy bytes. (Optional) + * Source and destinate may overlap and the right thing should happen. + * + * width Bytes to copy per row + * height Number of rows + * src Source data + * srcRowBytes Width of source in bytes + * dst Destination data + * dstRowBytes Width of destination in bytes + */ +typedef void (*RootlessCopyBytesProc) + (unsigned int width, unsigned int height, + const void *src, unsigned int srcRowBytes, + void *dst, unsigned int dstRowBytes); + +/* + * Copy area in frame to another part of frame. (Optional) + * + * wid Frame id + * dstNrects Number of rectangles to copy + * dstRects Array of rectangles to copy + * dx, dy Number of pixels away to copy area + */ +typedef void (*RootlessCopyWindowProc) + (RootlessFrameID wid, int dstNrects, const BoxRec *dstRects, + int dx, int dy); + + +typedef void (*RootlessHideWindowProc) + (RootlessFrameID wid); + +typedef void (*RootlessUpdateColormapProc) + (RootlessFrameID wid, ScreenPtr pScreen); + +/* + * Rootless implementation function list + */ +typedef struct _RootlessFrameProcs { + RootlessCreateFrameProc CreateFrame; + RootlessDestroyFrameProc DestroyFrame; + + RootlessMoveFrameProc MoveFrame; + RootlessResizeFrameProc ResizeFrame; + RootlessRestackFrameProc RestackFrame; + RootlessReshapeFrameProc ReshapeFrame; + RootlessUnmapFrameProc UnmapFrame; + + RootlessStartDrawingProc StartDrawing; + RootlessStopDrawingProc StopDrawing; + RootlessUpdateRegionProc UpdateRegion; + RootlessDamageRectsProc DamageRects; + + /* Optional frame functions */ + RootlessSwitchWindowProc SwitchWindow; + RootlessDoReorderWindowProc DoReorderWindow; + RootlessHideWindowProc HideWindow; + RootlessUpdateColormapProc UpdateColormap; + + /* Optional acceleration functions */ + RootlessCopyBytesProc CopyBytes; + RootlessCopyWindowProc CopyWindow; +} RootlessFrameProcsRec, *RootlessFrameProcsPtr; + + +/* + * Initialize rootless mode on the given screen. + */ +Bool RootlessInit(ScreenPtr pScreen, RootlessFrameProcsPtr procs); + +/* + * Return the frame ID for the physical window displaying the given window. + * + * create If true and the window has no frame, attempt to create one + */ +RootlessFrameID RootlessFrameForWindow(WindowPtr pWin, Bool create); + +/* + * Return the top-level parent of a window. + * The root is the top-level parent of itself, even though the root is + * not otherwise considered to be a top-level window. + */ +WindowPtr TopLevelParent(WindowPtr pWindow); + +/* + * Prepare a window for direct access to its backing buffer. + */ +void RootlessStartDrawing(WindowPtr pWindow); + +/* + * Finish drawing to a window's backing buffer. + * + * flush If true, damaged areas are flushed to the screen. + */ +void RootlessStopDrawing(WindowPtr pWindow, Bool flush); + +/* + * Alocate a new screen pixmap. + * miCreateScreenResources does not do this properly with a null + * framebuffer pointer. + */ +void RootlessUpdateScreenPixmap(ScreenPtr pScreen); + +/* + * Reposition all windows on a screen to their correct positions. + */ +void RootlessRepositionWindows(ScreenPtr pScreen); + +/* + * Bring all windows to the front of the native stack + */ +void RootlessOrderAllWindows (Bool include_unhitable); +#endif /* _ROOTLESS_H */ diff --git a/miext/rootless/rootlessCommon.c b/miext/rootless/rootlessCommon.c new file mode 100644 index 0000000..861e8e8 --- /dev/null +++ b/miext/rootless/rootlessCommon.c @@ -0,0 +1,448 @@ +/* + * Common rootless definitions and code + */ +/* + * Copyright (c) 2001 Greg Parker. All Rights Reserved. + * Copyright (c) 2002-2003 Torrey T. Lyons. All Rights Reserved. + * Copyright (c) 2002 Apple Computer, Inc. All rights reserved. + * + * 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 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 ABOVE LISTED COPYRIGHT HOLDER(S) 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. + * + * Except as contained in this notice, the name(s) of the above copyright + * holders shall not be used in advertising or otherwise to promote the sale, + * use or other dealings in this Software without prior written authorization. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <stddef.h> /* For NULL */ +#include <limits.h> /* For CHAR_BIT */ + +#include "rootlessCommon.h" +#include "colormapst.h" + +unsigned int rootless_CopyBytes_threshold = 0; +unsigned int rootless_CopyWindow_threshold = 0; +int rootlessGlobalOffsetX = 0; +int rootlessGlobalOffsetY = 0; + +RegionRec rootlessHugeRoot = {{-32767, -32767, 32767, 32767}, NULL}; + +/* Following macro from miregion.c */ + +/* true iff two Boxes overlap */ +#define EXTENTCHECK(r1,r2) \ + (!( ((r1)->x2 <= (r2)->x1) || \ + ((r1)->x1 >= (r2)->x2) || \ + ((r1)->y2 <= (r2)->y1) || \ + ((r1)->y1 >= (r2)->y2) ) ) + + +/* + * TopLevelParent + * Returns the top-level parent of pWindow. + * The root is the top-level parent of itself, even though the root is + * not otherwise considered to be a top-level window. + */ +WindowPtr +TopLevelParent(WindowPtr pWindow) +{ + WindowPtr top; + + if (IsRoot(pWindow)) + return pWindow; + + top = pWindow; + while (top && ! IsTopLevel(top)) + top = top->parent; + + return top; +} + + +/* + * IsFramedWindow + * Returns TRUE if this window is visible inside a frame + * (e.g. it is visible and has a top-level or root parent) + */ +Bool +IsFramedWindow(WindowPtr pWin) +{ + WindowPtr top; + + if (!dixPrivateKeyRegistered(&rootlessWindowPrivateKeyRec)) + return FALSE; + + if (!pWin->realized) + return FALSE; + top = TopLevelParent(pWin); + + return (top && WINREC(top)); +} + +Bool +RootlessResolveColormap (ScreenPtr pScreen, int first_color, + int n_colors, uint32_t *colors) +{ + int last, i; + ColormapPtr map; + + map = RootlessGetColormap (pScreen); + if (map == NULL || map->class != PseudoColor) return FALSE; + + last = min (map->pVisual->ColormapEntries, first_color + n_colors); + for (i = max (0, first_color); i < last; i++) { + Entry *ent = map->red + i; + uint16_t red, green, blue; + + if (!ent->refcnt) continue; + if (ent->fShared) { + red = ent->co.shco.red->color; + green = ent->co.shco.green->color; + blue = ent->co.shco.blue->color; + } else { + red = ent->co.local.red; + green = ent->co.local.green; + blue = ent->co.local.blue; + } + + colors[i - first_color] = (0xFF000000UL + | ((uint32_t) red & 0xff00) << 8 + | (green & 0xff00) + | (blue >> 8)); + } + + return TRUE; +} + + +/* + * RootlessStartDrawing + * Prepare a window for direct access to its backing buffer. + * Each top-level parent has a Pixmap representing its backing buffer, + * which all of its children inherit. + */ +void RootlessStartDrawing(WindowPtr pWindow) +{ + ScreenPtr pScreen = pWindow->drawable.pScreen; + WindowPtr top = TopLevelParent(pWindow); + RootlessWindowRec *winRec; + PixmapPtr curPixmap; + + if (top == NULL) + return; + winRec = WINREC(top); + if (winRec == NULL) + return; + + // Make sure the window's top-level parent is prepared for drawing. + if (!winRec->is_drawing) { + int bw = wBorderWidth(top); + + SCREENREC(pScreen)->imp->StartDrawing(winRec->wid, &winRec->pixelData, + &winRec->bytesPerRow); + + winRec->pixmap = + GetScratchPixmapHeader(pScreen, winRec->width, winRec->height, + top->drawable.depth, + top->drawable.bitsPerPixel, + winRec->bytesPerRow, + winRec->pixelData); + SetPixmapBaseToScreen(winRec->pixmap, + top->drawable.x - bw, top->drawable.y - bw); + + winRec->is_drawing = TRUE; + } + + curPixmap = pScreen->GetWindowPixmap(pWindow); + if (curPixmap == winRec->pixmap) + { + RL_DEBUG_MSG("Window %p already has winRec->pixmap %p; not pushing\n", pWindow, winRec->pixmap); + } + else + { + PixmapPtr oldPixmap = dixLookupPrivate(&pWindow->devPrivates, rootlessWindowOldPixmapPrivateKey); + if (oldPixmap != NULL) + { + if (oldPixmap == curPixmap) + RL_DEBUG_MSG("Window %p's curPixmap %p is the same as its oldPixmap; strange\n", pWindow, curPixmap); + else + RL_DEBUG_MSG("Window %p's existing oldPixmap %p being lost!\n", pWindow, oldPixmap); + } + dixSetPrivate(&pWindow->devPrivates, rootlessWindowOldPixmapPrivateKey, curPixmap); + pScreen->SetWindowPixmap(pWindow, winRec->pixmap); + } +} + + +/* + * RootlessStopDrawing + * Stop drawing to a window's backing buffer. If flush is true, + * damaged regions are flushed to the screen. + */ +static int RestorePreDrawingPixmapVisitor(WindowPtr pWindow, pointer data) +{ + RootlessWindowRec *winRec = (RootlessWindowRec*)data; + ScreenPtr pScreen = pWindow->drawable.pScreen; + PixmapPtr exPixmap = pScreen->GetWindowPixmap(pWindow); + PixmapPtr oldPixmap = dixLookupPrivate(&pWindow->devPrivates, rootlessWindowOldPixmapPrivateKey); + if (oldPixmap == NULL) + { + if (exPixmap == winRec->pixmap) + RL_DEBUG_MSG("Window %p appears to be in drawing mode (ex-pixmap %p equals winRec->pixmap, which is being freed) but has no oldPixmap!\n", pWindow, exPixmap); + } + else + { + if (exPixmap != winRec->pixmap) + RL_DEBUG_MSG("Window %p appears to be in drawing mode (oldPixmap %p) but ex-pixmap %p not winRec->pixmap %p!\n", pWindow, oldPixmap, exPixmap, winRec->pixmap); + if (oldPixmap == winRec->pixmap) + RL_DEBUG_MSG("Window %p's oldPixmap %p is winRec->pixmap, which has just been freed!\n", pWindow, oldPixmap); + pScreen->SetWindowPixmap(pWindow, oldPixmap); + dixSetPrivate(&pWindow->devPrivates, rootlessWindowOldPixmapPrivateKey, NULL); + } + return WT_WALKCHILDREN; +} + +void RootlessStopDrawing(WindowPtr pWindow, Bool flush) +{ + ScreenPtr pScreen = pWindow->drawable.pScreen; + WindowPtr top = TopLevelParent(pWindow); + RootlessWindowRec *winRec; + + if (top == NULL) + return; + winRec = WINREC(top); + if (winRec == NULL) + return; + + if (winRec->is_drawing) { + SCREENREC(pScreen)->imp->StopDrawing(winRec->wid, flush); + + FreeScratchPixmapHeader(winRec->pixmap); + TraverseTree(top, RestorePreDrawingPixmapVisitor, (pointer)winRec); + winRec->pixmap = NULL; + + winRec->is_drawing = FALSE; + } + else if (flush) { + SCREENREC(pScreen)->imp->UpdateRegion(winRec->wid, NULL); + } + + if (flush && winRec->is_reorder_pending) { + winRec->is_reorder_pending = FALSE; + RootlessReorderWindow(pWindow); + } +} + + +/* + * RootlessDamageRegion + * Mark a damaged region as requiring redisplay to screen. + * pRegion is in GLOBAL coordinates. + */ +void +RootlessDamageRegion(WindowPtr pWindow, RegionPtr pRegion) +{ + RootlessWindowRec *winRec; + RegionRec clipped; + WindowPtr pTop; + BoxPtr b1, b2; + + RL_DEBUG_MSG("Damaged win 0x%x ", pWindow); + + pTop = TopLevelParent(pWindow); + if (pTop == NULL) + return; + + winRec = WINREC(pTop); + if (winRec == NULL) + return; + + /* We need to intersect the drawn region with the clip of the window + to avoid marking places we didn't actually draw (which can cause + problems when the window has an extra client-side backing store) + + But this is a costly operation and since we'll normally just be + drawing inside the clip, go to some lengths to avoid the general + case intersection. */ + + b1 = RegionExtents(&pWindow->borderClip); + b2 = RegionExtents(pRegion); + + if (EXTENTCHECK(b1, b2)) { + /* Regions may overlap. */ + + if (RegionNumRects(pRegion) == 1) { + int in; + + /* Damaged region only has a single rect, so we can + just compare that against the region */ + + in = RegionContainsRect(&pWindow->borderClip, + RegionRects (pRegion)); + if (in == rgnIN) { + /* clip totally contains pRegion */ + + SCREENREC(pWindow->drawable.pScreen)->imp-> + DamageRects(winRec->wid, + RegionNumRects(pRegion), + RegionRects(pRegion), + -winRec->x, -winRec->y); + + RootlessQueueRedisplay(pTop->drawable.pScreen); + goto out; + } + else if (in == rgnOUT) { + /* clip doesn't contain pRegion */ + + goto out; + } + } + + /* clip overlaps pRegion, need to intersect */ + + RegionNull(&clipped); + RegionIntersect(&clipped, &pWindow->borderClip, pRegion); + + SCREENREC(pWindow->drawable.pScreen)->imp-> + DamageRects(winRec->wid, + RegionNumRects(&clipped), + RegionRects(&clipped), + -winRec->x, -winRec->y); + + RegionUninit(&clipped); + + RootlessQueueRedisplay(pTop->drawable.pScreen); + } + +out: +#ifdef ROOTLESSDEBUG + { + BoxRec *box = RegionRects(pRegion), *end; + int numBox = RegionNumRects(pRegion); + + for (end = box+numBox; box < end; box++) { + RL_DEBUG_MSG("Damage rect: %i, %i, %i, %i\n", + box->x1, box->x2, box->y1, box->y2); + } + } +#endif + return; +} + + +/* + * RootlessDamageBox + * Mark a damaged box as requiring redisplay to screen. + * pRegion is in GLOBAL coordinates. + */ +void +RootlessDamageBox(WindowPtr pWindow, BoxPtr pBox) +{ + RegionRec region; + + RegionInit(®ion, pBox, 1); + + RootlessDamageRegion(pWindow, ®ion); + + RegionUninit(®ion); /* no-op */ +} + + +/* + * RootlessDamageRect + * Mark a damaged rectangle as requiring redisplay to screen. + * (x, y, w, h) is in window-local coordinates. + */ +void +RootlessDamageRect(WindowPtr pWindow, int x, int y, int w, int h) +{ + BoxRec box; + RegionRec region; + + x += pWindow->drawable.x; + y += pWindow->drawable.y; + + box.x1 = x; + box.x2 = x + w; + box.y1 = y; + box.y2 = y + h; + + RegionInit(®ion, &box, 1); + + RootlessDamageRegion(pWindow, ®ion); + + RegionUninit(®ion); /* no-op */ +} + + +/* + * RootlessRedisplay + * Stop drawing and redisplay the damaged region of a window. + */ +void +RootlessRedisplay(WindowPtr pWindow) +{ + RootlessStopDrawing(pWindow, TRUE); +} + + +/* + * RootlessRepositionWindows + * Reposition all windows on a screen to their correct positions. + */ +void +RootlessRepositionWindows(ScreenPtr pScreen) +{ + WindowPtr root = pScreen->root; + WindowPtr win; + + if (root != NULL) { + RootlessRepositionWindow(root); + + for (win = root->firstChild; win; win = win->nextSib) { + if (WINREC(win) != NULL) + RootlessRepositionWindow(win); + } + } +} + + +/* + * RootlessRedisplayScreen + * Walk every window on a screen and redisplay the damaged regions. + */ +void +RootlessRedisplayScreen(ScreenPtr pScreen) +{ + WindowPtr root = pScreen->root; + + if (root != NULL) { + WindowPtr win; + + RootlessRedisplay(root); + for (win = root->firstChild; win; win = win->nextSib) { + if (WINREC(win) != NULL) { + RootlessRedisplay(win); + } + } + } +} diff --git a/miext/rootless/rootlessCommon.h b/miext/rootless/rootlessCommon.h new file mode 100644 index 0000000..6faf1fe --- /dev/null +++ b/miext/rootless/rootlessCommon.h @@ -0,0 +1,290 @@ +/* + * Common internal rootless definitions and code + */ +/* + * Copyright (c) 2001 Greg Parker. All Rights Reserved. + * Copyright (c) 2002-2004 Torrey T. Lyons. All Rights Reserved. + * + * 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 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 ABOVE LISTED COPYRIGHT HOLDER(S) 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. + * + * Except as contained in this notice, the name(s) of the above copyright + * holders shall not be used in advertising or otherwise to promote the sale, + * use or other dealings in this Software without prior written authorization. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <stdint.h> +#ifndef _ROOTLESSCOMMON_H +#define _ROOTLESSCOMMON_H + +#include "misc.h" +#include "rootless.h" +#include "fb.h" + +#include "scrnintstr.h" + +#include "picturestr.h" + + +// Debug output, or not. +#ifdef ROOTLESSDEBUG +#define RL_DEBUG_MSG ErrorF +#else +#define RL_DEBUG_MSG(a, ...) +#endif + + +// Global variables +extern DevPrivateKeyRec rootlessGCPrivateKeyRec; +#define rootlessGCPrivateKey (&rootlessGCPrivateKeyRec) + +extern DevPrivateKeyRec rootlessScreenPrivateKeyRec; +#define rootlessScreenPrivateKey (&rootlessScreenPrivateKeyRec) + +extern DevPrivateKeyRec rootlessWindowPrivateKeyRec; +#define rootlessWindowPrivateKey (&rootlessWindowPrivateKeyRec) + +extern DevPrivateKeyRec rootlessWindowOldPixmapPrivateKeyRec; +#define rootlessWindowOldPixmapPrivateKey (&rootlessWindowOldPixmapPrivateKeyRec) + + +// RootlessGCRec: private per-gc data +typedef struct { + GCFuncs *originalFuncs; + GCOps *originalOps; +} RootlessGCRec; + + +// RootlessScreenRec: per-screen private data +typedef struct _RootlessScreenRec { + // Rootless implementation functions + RootlessFrameProcsPtr imp; + + // Wrapped screen functions + CreateScreenResourcesProcPtr CreateScreenResources; + CloseScreenProcPtr CloseScreen; + + CreateWindowProcPtr CreateWindow; + DestroyWindowProcPtr DestroyWindow; + RealizeWindowProcPtr RealizeWindow; + UnrealizeWindowProcPtr UnrealizeWindow; + MoveWindowProcPtr MoveWindow; + ResizeWindowProcPtr ResizeWindow; + RestackWindowProcPtr RestackWindow; + ReparentWindowProcPtr ReparentWindow; + ChangeBorderWidthProcPtr ChangeBorderWidth; + PositionWindowProcPtr PositionWindow; + ChangeWindowAttributesProcPtr ChangeWindowAttributes; + + CreateGCProcPtr CreateGC; + CopyWindowProcPtr CopyWindow; + GetImageProcPtr GetImage; + SourceValidateProcPtr SourceValidate; + + MarkOverlappedWindowsProcPtr MarkOverlappedWindows; + ValidateTreeProcPtr ValidateTree; + + SetShapeProcPtr SetShape; + + CompositeProcPtr Composite; + GlyphsProcPtr Glyphs; + + InstallColormapProcPtr InstallColormap; + UninstallColormapProcPtr UninstallColormap; + StoreColorsProcPtr StoreColors; + + void *pixmap_data; + unsigned int pixmap_data_size; + + ColormapPtr colormap; + + void *redisplay_timer; + unsigned int redisplay_timer_set :1; + unsigned int redisplay_queued :1; + unsigned int redisplay_expired :1; + unsigned int colormap_changed :1; +} RootlessScreenRec, *RootlessScreenPtr; + +// "Definition of the Porting Layer for the X11 Sample Server" says +// unwrap and rewrap of screen functions is unnecessary, but +// screen->CreateGC changes after a call to cfbCreateGC. + +#define SCREEN_UNWRAP(screen, fn) \ + screen->fn = SCREENREC(screen)->fn; + +#define SCREEN_WRAP(screen, fn) \ + SCREENREC(screen)->fn = screen->fn; \ + screen->fn = Rootless##fn + + +// Accessors for screen and window privates + +#define SCREENREC(pScreen) ((RootlessScreenRec *) \ + dixLookupPrivate(&(pScreen)->devPrivates, rootlessScreenPrivateKey)) + +#define SETSCREENREC(pScreen, v) \ + dixSetPrivate(&(pScreen)->devPrivates, rootlessScreenPrivateKey, v) + +#define WINREC(pWin) ((RootlessWindowRec *) \ + dixLookupPrivate(&(pWin)->devPrivates, rootlessWindowPrivateKey)) + +#define SETWINREC(pWin, v) \ + dixSetPrivate(&(pWin)->devPrivates, rootlessWindowPrivateKey, v) + +// Call a rootless implementation function. +// Many rootless implementation functions are allowed to be NULL. +#define CallFrameProc(pScreen, proc, params) \ + if (SCREENREC(pScreen)->frameProcs.proc) { \ + RL_DEBUG_MSG("calling frame proc " #proc " "); \ + SCREENREC(pScreen)->frameProcs.proc params; \ + } + + +// BoxRec manipulators +// Copied from shadowfb + +#define TRIM_BOX(box, pGC) { \ + BoxPtr extents = &pGC->pCompositeClip->extents;\ + if(box.x1 < extents->x1) box.x1 = extents->x1; \ + if(box.x2 > extents->x2) box.x2 = extents->x2; \ + if(box.y1 < extents->y1) box.y1 = extents->y1; \ + if(box.y2 > extents->y2) box.y2 = extents->y2; \ +} + +#define TRANSLATE_BOX(box, pDraw) { \ + box.x1 += pDraw->x; \ + box.x2 += pDraw->x; \ + box.y1 += pDraw->y; \ + box.y2 += pDraw->y; \ +} + +#define TRIM_AND_TRANSLATE_BOX(box, pDraw, pGC) { \ + TRANSLATE_BOX(box, pDraw); \ + TRIM_BOX(box, pGC); \ +} + +#define BOX_NOT_EMPTY(box) \ + (((box.x2 - box.x1) > 0) && ((box.y2 - box.y1) > 0)) + + +// HUGE_ROOT and NORMAL_ROOT +// We don't want to clip windows to the edge of the screen. +// HUGE_ROOT temporarily makes the root window really big. +// This is needed as a wrapper around any function that calls +// SetWinSize or SetBorderSize which clip a window against its +// parents, including the root. + +extern RegionRec rootlessHugeRoot; + +#define HUGE_ROOT(pWin) \ + do { \ + WindowPtr w = pWin; \ + while (w->parent) \ + w = w->parent; \ + saveRoot = w->winSize; \ + w->winSize = rootlessHugeRoot; \ + } while (0) + +#define NORMAL_ROOT(pWin) \ + do { \ + WindowPtr w = pWin; \ + while (w->parent) \ + w = w->parent; \ + w->winSize = saveRoot; \ + } while (0) + + +// Returns TRUE if this window is a top-level window (i.e. child of the root) +// The root is not a top-level window. +#define IsTopLevel(pWin) \ + ((pWin) && (pWin)->parent && !(pWin)->parent->parent) + +// Returns TRUE if this window is a root window +#define IsRoot(pWin) \ + ((pWin) == (pWin)->drawable.pScreen->root) + + +/* + * SetPixmapBaseToScreen + * Move the given pixmap's base address to where pixel (0, 0) + * would be if the pixmap's actual data started at (x, y). + * Can't access the bits before the first word of the drawable's data in + * rootless mode, so make sure our base address is always 32-bit aligned. + */ +#define SetPixmapBaseToScreen(pix, _x, _y) { \ + PixmapPtr _pPix = (PixmapPtr) (pix); \ + _pPix->devPrivate.ptr = (char *) (_pPix->devPrivate.ptr) - \ + ((int)(_x) * _pPix->drawable.bitsPerPixel/8 + \ + (int)(_y) * _pPix->devKind); \ + if (_pPix->drawable.bitsPerPixel != FB_UNIT) { \ + size_t _diff = ((size_t) _pPix->devPrivate.ptr) & \ + (FB_UNIT / CHAR_BIT - 1); \ + _pPix->devPrivate.ptr = (char *) (_pPix->devPrivate.ptr) - \ + _diff; \ + _pPix->drawable.x = _diff / \ + (_pPix->drawable.bitsPerPixel / CHAR_BIT); \ + } \ +} + + +// Returns TRUE if this window is visible inside a frame +// (e.g. it is visible and has a top-level or root parent) +Bool IsFramedWindow(WindowPtr pWin); + +// Routines that cause regions to get redrawn. +// DamageRegion and DamageRect are in global coordinates. +// DamageBox is in window-local coordinates. +void RootlessDamageRegion(WindowPtr pWindow, RegionPtr pRegion); +void RootlessDamageRect(WindowPtr pWindow, int x, int y, int w, int h); +void RootlessDamageBox(WindowPtr pWindow, BoxPtr pBox); +void RootlessRedisplay(WindowPtr pWindow); +void RootlessRedisplayScreen(ScreenPtr pScreen); + +void RootlessQueueRedisplay(ScreenPtr pScreen); + +/* Return the colormap currently installed on the given screen. */ +ColormapPtr RootlessGetColormap (ScreenPtr pScreen); + +/* Convert colormap to ARGB. */ +Bool RootlessResolveColormap (ScreenPtr pScreen, int first_color, + int n_colors, uint32_t *colors); + +void RootlessFlushWindowColormap (WindowPtr pWin); +void RootlessFlushScreenColormaps (ScreenPtr pScreen); + +// Move a window to its proper location on the screen. +void RootlessRepositionWindow(WindowPtr pWin); + +// Move the window to it's correct place in the physical stacking order. +void RootlessReorderWindow(WindowPtr pWin); + +void RootlessScreenExpose (ScreenPtr pScreen); +void RootlessHideAllWindows (void); +void RootlessShowAllWindows (void); +void RootlessUpdateRooted (Bool state); + +void RootlessEnableRoot (ScreenPtr pScreen); +void RootlessDisableRoot (ScreenPtr pScreen); + +void RootlessSetPixmapOfAncestors(WindowPtr pWin); + +#endif /* _ROOTLESSCOMMON_H */ diff --git a/miext/rootless/rootlessConfig.h b/miext/rootless/rootlessConfig.h new file mode 100644 index 0000000..a6c0d25 --- /dev/null +++ b/miext/rootless/rootlessConfig.h @@ -0,0 +1,62 @@ +/* + * Platform specific rootless configuration + */ +/* + * Copyright (c) 2003 Torrey T. Lyons. All Rights Reserved. + * + * 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 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 ABOVE LISTED COPYRIGHT HOLDER(S) 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. + * + * Except as contained in this notice, the name(s) of the above copyright + * holders shall not be used in advertising or otherwise to promote the sale, + * use or other dealings in this Software without prior written authorization. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#ifndef _ROOTLESSCONFIG_H +#define _ROOTLESSCONFIG_H + +#ifdef __APPLE__ + +# define ROOTLESS_PROTECT_ALPHA TRUE +# define ROOTLESS_REDISPLAY_DELAY 10 +# define ROOTLESS_RESIZE_GRAVITY TRUE +/*# define ROOTLESSDEBUG*/ + +/* Bit mask for alpha channel with a particular number of bits per + pixel. Note that we only care for 32bpp data. Mac OS X uses planar + alpha for 16bpp. */ +# define RootlessAlphaMask(bpp) ((bpp) == 32 ? 0xFF000000 : 0) + +#endif /* __APPLE__ */ + +#if defined(__CYGWIN__) || defined(WIN32) + +# define ROOTLESS_PROTECT_ALPHA NO +# define ROOTLESS_REDISPLAY_DELAY 10 +# undef ROOTLESS_RESIZE_GRAVITY +/*# define ROOTLESSDEBUG*/ + +# define RootlessAlphaMask(bpp) ((bpp) == 32 ? 0xFF000000 : 0) + +#endif /* __CYGWIN__ */ + +#endif /* _ROOTLESSCONFIG_H */ diff --git a/miext/rootless/rootlessGC.c b/miext/rootless/rootlessGC.c new file mode 100644 index 0000000..68a9dc7 --- /dev/null +++ b/miext/rootless/rootlessGC.c @@ -0,0 +1,1460 @@ +/* + * Graphics Context support for generic rootless X server + */ +/* + * Copyright (c) 2001 Greg Parker. All Rights Reserved. + * Copyright (c) 2002-2003 Torrey T. Lyons. All Rights Reserved. + * Copyright (c) 2002 Apple Computer, Inc. All rights reserved. + * + * 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 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 ABOVE LISTED COPYRIGHT HOLDER(S) 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. + * + * Except as contained in this notice, the name(s) of the above copyright + * holders shall not be used in advertising or otherwise to promote the sale, + * use or other dealings in this Software without prior written authorization. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <stddef.h> /* For NULL */ +#include "mi.h" +#include "scrnintstr.h" +#include "gcstruct.h" +#include "pixmapstr.h" +#include "windowstr.h" +#include "dixfontstr.h" +#include "mivalidate.h" +#include "fb.h" + +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> + +#include "rootlessCommon.h" + + +// GC functions +static void RootlessValidateGC(GCPtr pGC, unsigned long changes, + DrawablePtr pDrawable); +static void RootlessChangeGC(GCPtr pGC, unsigned long mask); +static void RootlessCopyGC(GCPtr pGCSrc, unsigned long mask, GCPtr pGCDst); +static void RootlessDestroyGC(GCPtr pGC); +static void RootlessChangeClip(GCPtr pGC, int type, pointer pvalue, + int nrects); +static void RootlessDestroyClip(GCPtr pGC); +static void RootlessCopyClip(GCPtr pgcDst, GCPtr pgcSrc); + +Bool RootlessCreateGC(GCPtr pGC); + +GCFuncs rootlessGCFuncs = { + RootlessValidateGC, + RootlessChangeGC, + RootlessCopyGC, + RootlessDestroyGC, + RootlessChangeClip, + RootlessDestroyClip, + RootlessCopyClip, +}; + +// GC operations +static void RootlessFillSpans(DrawablePtr dst, GCPtr pGC, int nInit, + DDXPointPtr pptInit, int *pwidthInit, + int sorted); +static void RootlessSetSpans(DrawablePtr dst, GCPtr pGC, char *pSrc, + DDXPointPtr pptInit, int *pwidthInit, + int nspans, int sorted); +static void RootlessPutImage(DrawablePtr dst, GCPtr pGC, + int depth, int x, int y, int w, int h, + int leftPad, int format, char *pBits); +static RegionPtr RootlessCopyArea(DrawablePtr pSrc, DrawablePtr dst, GCPtr pGC, + int srcx, int srcy, int w, int h, + int dstx, int dsty); +static RegionPtr RootlessCopyPlane(DrawablePtr pSrc, DrawablePtr dst, + GCPtr pGC, int srcx, int srcy, + int w, int h, int dstx, int dsty, + unsigned long plane); +static void RootlessPolyPoint(DrawablePtr dst, GCPtr pGC, + int mode, int npt, DDXPointPtr pptInit); +static void RootlessPolylines(DrawablePtr dst, GCPtr pGC, + int mode, int npt, DDXPointPtr pptInit); +static void RootlessPolySegment(DrawablePtr dst, GCPtr pGC, + int nseg, xSegment *pSeg); +static void RootlessPolyRectangle(DrawablePtr dst, GCPtr pGC, + int nRects, xRectangle *pRects); +static void RootlessPolyArc(DrawablePtr dst, GCPtr pGC, int narcs, xArc *parcs); +static void RootlessFillPolygon(DrawablePtr dst, GCPtr pGC, + int shape, int mode, int count, + DDXPointPtr pptInit); +static void RootlessPolyFillRect(DrawablePtr dst, GCPtr pGC, + int nRectsInit, xRectangle *pRectsInit); +static void RootlessPolyFillArc(DrawablePtr dst, GCPtr pGC, + int narcsInit, xArc *parcsInit); +static int RootlessPolyText8(DrawablePtr dst, GCPtr pGC, + int x, int y, int count, char *chars); +static int RootlessPolyText16(DrawablePtr dst, GCPtr pGC, + int x, int y, int count, unsigned short *chars); +static void RootlessImageText8(DrawablePtr dst, GCPtr pGC, + int x, int y, int count, char *chars); +static void RootlessImageText16(DrawablePtr dst, GCPtr pGC, + int x, int y, int count, unsigned short *chars); +static void RootlessImageGlyphBlt(DrawablePtr dst, GCPtr pGC, + int x, int y, unsigned int nglyphInit, + CharInfoPtr *ppciInit, pointer unused); +static void RootlessPolyGlyphBlt(DrawablePtr dst, GCPtr pGC, + int x, int y, unsigned int nglyph, + CharInfoPtr *ppci, pointer pglyphBase); +static void RootlessPushPixels(GCPtr pGC, PixmapPtr pBitMap, DrawablePtr dst, + int dx, int dy, int xOrg, int yOrg); + + +static GCOps rootlessGCOps = { + RootlessFillSpans, + RootlessSetSpans, + RootlessPutImage, + RootlessCopyArea, + RootlessCopyPlane, + RootlessPolyPoint, + RootlessPolylines, + RootlessPolySegment, + RootlessPolyRectangle, + RootlessPolyArc, + RootlessFillPolygon, + RootlessPolyFillRect, + RootlessPolyFillArc, + RootlessPolyText8, + RootlessPolyText16, + RootlessImageText8, + RootlessImageText16, + RootlessImageGlyphBlt, + RootlessPolyGlyphBlt, + RootlessPushPixels +}; + +/* + If ROOTLESS_PROTECT_ALPHA is set, we have to make sure that the alpha + channel of the on screen windows is always opaque. fb makes this harder + than it would otherwise be by noticing that a planemask of 0x00ffffff + includes all bits when depth==24, and so it "optimizes" the planemask to + 0xffffffff. We work around this by temporarily setting depth=bpp while + changing the GC. + + So the normal situation (in 32 bit mode) is that the planemask is + 0x00ffffff and thus fb leaves the alpha channel alone. The rootless + implementation is responsible for setting the alpha channel opaque + initially. + + Unfortunately drawing with a planemask that doesn't have all bits set + normally causes fb to fall off its fastest paths when blitting and + filling. So we try to recognize when we can relax the planemask back to + 0xffffffff, and do that for the duration of the drawing operation, + setting the alpha channel in fg/bg pixels to opaque at the same time. We + can do this when drawing op is GXcopy. We can also do this when copying + from another window since its alpha channel must also be opaque. + + The three macros below are used to implement this. Drawing ops that can + potentially have their planemask relaxed look like: + + OP { + GC_SAVE(gc); + GCOP_UNWRAP(gc); + + ... + + if (canAccelxxx(..) && otherwise-suitable) + GC_UNSET_PM(gc, dst); + + gc->funcs->OP(gc, ...); + + GC_RESTORE(gc, dst); + GCOP_WRAP(gc); + } + + */ + +#define GC_SAVE(pGC) \ + unsigned long _save_fg = (pGC)->fgPixel; \ + unsigned long _save_bg = (pGC)->bgPixel; \ + unsigned long _save_pm = (pGC)->planemask; \ + Bool _changed = FALSE + +#define GC_RESTORE(pGC, pDraw) \ + do { \ + if (_changed) { \ + unsigned int depth = (pDraw)->depth; \ + (pGC)->fgPixel = _save_fg; \ + (pGC)->bgPixel = _save_bg; \ + (pGC)->planemask = _save_pm; \ + (pDraw)->depth = (pDraw)->bitsPerPixel; \ + VALIDATE_GC(pGC, GCForeground | GCBackground | \ + GCPlaneMask, pDraw); \ + (pDraw)->depth = depth; \ + } \ + } while (0) + +#define GC_UNSET_PM(pGC, pDraw) \ + do { \ + unsigned int mask = RootlessAlphaMask ((pDraw)->bitsPerPixel); \ + if (((pGC)->planemask & mask) != mask) { \ + unsigned int depth = (pDraw)->depth; \ + (pGC)->fgPixel |= mask; \ + (pGC)->bgPixel |= mask; \ + (pGC)->planemask |= mask; \ + (pDraw)->depth = (pDraw)->bitsPerPixel; \ + VALIDATE_GC(pGC, GCForeground | \ + GCBackground | GCPlaneMask, pDraw); \ + (pDraw)->depth = depth; \ + _changed = TRUE; \ + } \ + } while (0) + +#define VALIDATE_GC(pGC, changes, pDrawable) \ + do { \ + pGC->funcs->ValidateGC(pGC, changes, pDrawable); \ + if (((WindowPtr) pDrawable)->viewable) { \ + gcrec->originalOps = pGC->ops; \ + } \ + } while(0) + +static RootlessWindowRec * +canAccelBlit (DrawablePtr pDraw, GCPtr pGC) +{ + WindowPtr pTop; + RootlessWindowRec *winRec; + unsigned int pm; + + if (pGC->alu != GXcopy) + return NULL; + + if (pDraw->type != DRAWABLE_WINDOW) + return NULL; + + pm = ~RootlessAlphaMask(pDraw->bitsPerPixel); + if ((pGC->planemask & pm) != pm) + return NULL; + + pTop = TopLevelParent((WindowPtr) pDraw); + if (pTop == NULL) + return NULL; + + winRec = WINREC(pTop); + if (winRec == NULL) + return NULL; + + return winRec; +} + +static inline RootlessWindowRec * +canAccelFill(DrawablePtr pDraw, GCPtr pGC) +{ + if (pGC->fillStyle != FillSolid) + return NULL; + + return canAccelBlit(pDraw, pGC); +} + + +/* + * Screen function to create a graphics context + */ +Bool +RootlessCreateGC(GCPtr pGC) +{ + RootlessGCRec *gcrec; + RootlessScreenRec *s; + Bool result; + + SCREEN_UNWRAP(pGC->pScreen, CreateGC); + s = SCREENREC(pGC->pScreen); + result = s->CreateGC(pGC); + + gcrec = (RootlessGCRec *) + dixLookupPrivate(&pGC->devPrivates, rootlessGCPrivateKey); + gcrec->originalOps = NULL; // don't wrap ops yet + gcrec->originalFuncs = pGC->funcs; + pGC->funcs = &rootlessGCFuncs; + + SCREEN_WRAP(pGC->pScreen, CreateGC); + return result; +} + + +/* + * GC funcs + * + * These wrap lower level GC funcs. + * ValidateGC wraps the GC ops iff dest is viewable. + * All the others just unwrap and call. + */ + +// GCFUNC_UNRAP assumes funcs have been wrapped and +// does not assume ops have been wrapped +#define GCFUNC_UNWRAP(pGC) \ + RootlessGCRec *gcrec = (RootlessGCRec *) \ + dixLookupPrivate(&(pGC)->devPrivates, rootlessGCPrivateKey); \ + (pGC)->funcs = gcrec->originalFuncs; \ + if (gcrec->originalOps) { \ + (pGC)->ops = gcrec->originalOps; \ +} + +#define GCFUNC_WRAP(pGC) \ + gcrec->originalFuncs = (pGC)->funcs; \ + (pGC)->funcs = &rootlessGCFuncs; \ + if (gcrec->originalOps) { \ + gcrec->originalOps = (pGC)->ops; \ + (pGC)->ops = &rootlessGCOps; \ +} + + +static void +RootlessValidateGC(GCPtr pGC, unsigned long changes, DrawablePtr pDrawable) +{ + GCFUNC_UNWRAP(pGC); + + gcrec->originalOps = NULL; + + if (pDrawable->type == DRAWABLE_WINDOW) + { +#ifdef ROOTLESS_PROTECT_ALPHA + unsigned int depth = pDrawable->depth; + + // We force a planemask so fb doesn't overwrite the alpha channel. + // Left to its own devices, fb will optimize away the planemask. + pDrawable->depth = pDrawable->bitsPerPixel; + pGC->planemask &= ~RootlessAlphaMask(pDrawable->bitsPerPixel); + VALIDATE_GC(pGC, changes | GCPlaneMask, pDrawable); + pDrawable->depth = depth; +#else + VALIDATE_GC(pGC, changes, pDrawable); +#endif + } else { + pGC->funcs->ValidateGC(pGC, changes, pDrawable); + } + + GCFUNC_WRAP(pGC); +} + +static void RootlessChangeGC(GCPtr pGC, unsigned long mask) +{ + GCFUNC_UNWRAP(pGC); + pGC->funcs->ChangeGC(pGC, mask); + GCFUNC_WRAP(pGC); +} + +static void RootlessCopyGC(GCPtr pGCSrc, unsigned long mask, GCPtr pGCDst) +{ + GCFUNC_UNWRAP(pGCDst); + pGCDst->funcs->CopyGC(pGCSrc, mask, pGCDst); + GCFUNC_WRAP(pGCDst); +} + +static void RootlessDestroyGC(GCPtr pGC) +{ + GCFUNC_UNWRAP(pGC); + pGC->funcs->DestroyGC(pGC); + GCFUNC_WRAP(pGC); +} + +static void RootlessChangeClip(GCPtr pGC, int type, pointer pvalue, int nrects) +{ + GCFUNC_UNWRAP(pGC); + pGC->funcs->ChangeClip(pGC, type, pvalue, nrects); + GCFUNC_WRAP(pGC); +} + +static void RootlessDestroyClip(GCPtr pGC) +{ + GCFUNC_UNWRAP(pGC); + pGC->funcs->DestroyClip(pGC); + GCFUNC_WRAP(pGC); +} + +static void RootlessCopyClip(GCPtr pgcDst, GCPtr pgcSrc) +{ + GCFUNC_UNWRAP(pgcDst); + pgcDst->funcs->CopyClip(pgcDst, pgcSrc); + GCFUNC_WRAP(pgcDst); +} + + +/* + * GC ops + * + * We can't use shadowfb because shadowfb assumes one pixmap + * and our root window is a special case. + * However, much of this code is copied from shadowfb. + */ + +// assumes both funcs and ops are wrapped +#define GCOP_UNWRAP(pGC) \ + RootlessGCRec *gcrec = (RootlessGCRec *) \ + dixLookupPrivate(&(pGC)->devPrivates, rootlessGCPrivateKey); \ + GCFuncs *saveFuncs = pGC->funcs; \ + (pGC)->funcs = gcrec->originalFuncs; \ + (pGC)->ops = gcrec->originalOps; + +#define GCOP_WRAP(pGC) \ + gcrec->originalOps = (pGC)->ops; \ + (pGC)->funcs = saveFuncs; \ + (pGC)->ops = &rootlessGCOps; + +static void +RootlessFillSpans(DrawablePtr dst, GCPtr pGC, int nInit, + DDXPointPtr pptInit, int *pwidthInit, int sorted) +{ + GC_SAVE(pGC); + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("fill spans start "); + + if (nInit <= 0) { + pGC->ops->FillSpans(dst, pGC, nInit, pptInit, pwidthInit, sorted); + } else { + DDXPointPtr ppt = pptInit; + int *pwidth = pwidthInit; + int i = nInit; + BoxRec box; + + box.x1 = ppt->x; + box.x2 = box.x1 + *pwidth; + box.y2 = box.y1 = ppt->y; + + while (--i) { + ppt++; + pwidth++; + if (box.x1 > ppt->x) + box.x1 = ppt->x; + if (box.x2 < (ppt->x + *pwidth)) + box.x2 = ppt->x + *pwidth; + if (box.y1 > ppt->y) + box.y1 = ppt->y; + else if (box.y2 < ppt->y) + box.y2 = ppt->y; + } + + box.y2++; + + RootlessStartDrawing((WindowPtr) dst); + + if (canAccelFill(dst, pGC)) + { + GC_UNSET_PM(pGC, dst); + } + + pGC->ops->FillSpans(dst, pGC, nInit, pptInit, pwidthInit, sorted); + + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + } + + GC_RESTORE(pGC, dst); + GCOP_WRAP(pGC); + RL_DEBUG_MSG("fill spans end\n"); +} + +static void +RootlessSetSpans(DrawablePtr dst, GCPtr pGC, char *pSrc, + DDXPointPtr pptInit, int *pwidthInit, + int nspans, int sorted) +{ + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("set spans start "); + + if (nspans <= 0) { + pGC->ops->SetSpans(dst, pGC, pSrc, pptInit, pwidthInit, + nspans, sorted); + } else { + DDXPointPtr ppt = pptInit; + int *pwidth = pwidthInit; + int i = nspans; + BoxRec box; + + box.x1 = ppt->x; + box.x2 = box.x1 + *pwidth; + box.y2 = box.y1 = ppt->y; + + while (--i) { + ppt++; + pwidth++; + if (box.x1 > ppt->x) + box.x1 = ppt->x; + if (box.x2 < (ppt->x + *pwidth)) + box.x2 = ppt->x + *pwidth; + if (box.y1 > ppt->y) + box.y1 = ppt->y; + else if (box.y2 < ppt->y) + box.y2 = ppt->y; + } + + box.y2++; + + RootlessStartDrawing((WindowPtr) dst); + pGC->ops->SetSpans(dst, pGC, pSrc, pptInit, pwidthInit, + nspans, sorted); + + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + } + GCOP_WRAP(pGC); + RL_DEBUG_MSG("set spans end\n"); +} + +static void +RootlessPutImage(DrawablePtr dst, GCPtr pGC, + int depth, int x, int y, int w, int h, + int leftPad, int format, char *pBits) +{ + BoxRec box; + + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("put image start "); + + RootlessStartDrawing((WindowPtr) dst); + pGC->ops->PutImage(dst, pGC, depth, x,y,w,h, leftPad, format, pBits); + + box.x1 = x + dst->x; + box.x2 = box.x1 + w; + box.y1 = y + dst->y; + box.y2 = box.y1 + h; + + TRIM_BOX(box, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + + GCOP_WRAP(pGC); + RL_DEBUG_MSG("put image end\n"); +} + +/* changed area is *dest* rect */ +static RegionPtr +RootlessCopyArea(DrawablePtr pSrc, DrawablePtr dst, GCPtr pGC, + int srcx, int srcy, int w, int h, + int dstx, int dsty) +{ + RegionPtr result; + BoxRec box; + + GC_SAVE(pGC); + GCOP_UNWRAP(pGC); + + RL_DEBUG_MSG("copy area start (src 0x%x, dst 0x%x)", pSrc, dst); + + if (pSrc->type == DRAWABLE_WINDOW && IsFramedWindow((WindowPtr)pSrc)) { + /* If both source and dest are windows, and we're doing + a simple copy operation, we can remove the alpha-protecting + planemask (since source has opaque alpha as well) */ + + if (canAccelBlit(pSrc, pGC)) + { + GC_UNSET_PM(pGC, dst); + } + + RootlessStartDrawing((WindowPtr) pSrc); + } + RootlessStartDrawing((WindowPtr) dst); + result = pGC->ops->CopyArea(pSrc, dst, pGC, srcx, srcy, w, h, dstx, dsty); + + box.x1 = dstx + dst->x; + box.x2 = box.x1 + w; + box.y1 = dsty + dst->y; + box.y2 = box.y1 + h; + + TRIM_BOX(box, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + + GC_RESTORE(pGC, dst); + GCOP_WRAP(pGC); + RL_DEBUG_MSG("copy area end\n"); + return result; +} + +/* changed area is *dest* rect */ +static RegionPtr RootlessCopyPlane(DrawablePtr pSrc, DrawablePtr dst, + GCPtr pGC, int srcx, int srcy, + int w, int h, int dstx, int dsty, + unsigned long plane) +{ + RegionPtr result; + BoxRec box; + + GCOP_UNWRAP(pGC); + + RL_DEBUG_MSG("copy plane start "); + + if (pSrc->type == DRAWABLE_WINDOW && IsFramedWindow((WindowPtr)pSrc)) { + RootlessStartDrawing((WindowPtr) pSrc); + } + RootlessStartDrawing((WindowPtr) dst); + result = pGC->ops->CopyPlane(pSrc, dst, pGC, srcx, srcy, w, h, + dstx, dsty, plane); + + box.x1 = dstx + dst->x; + box.x2 = box.x1 + w; + box.y1 = dsty + dst->y; + box.y2 = box.y1 + h; + + TRIM_BOX(box, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + + GCOP_WRAP(pGC); + RL_DEBUG_MSG("copy plane end\n"); + return result; +} + +// Options for size of changed area: +// 0 = box per point +// 1 = big box around all points +// 2 = accumulate point in 20 pixel radius +#define ROOTLESS_CHANGED_AREA 1 +#define abs(a) ((a) > 0 ? (a) : -(a)) + +/* changed area is box around all points */ +static void RootlessPolyPoint(DrawablePtr dst, GCPtr pGC, + int mode, int npt, DDXPointPtr pptInit) +{ + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("polypoint start "); + + RootlessStartDrawing((WindowPtr) dst); + pGC->ops->PolyPoint(dst, pGC, mode, npt, pptInit); + + if (npt > 0) { +#if ROOTLESS_CHANGED_AREA==0 + // box per point + BoxRec box; + + while (npt) { + box.x1 = pptInit->x; + box.y1 = pptInit->y; + box.x2 = box.x1 + 1; + box.y2 = box.y1 + 1; + + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + + npt--; + pptInit++; + } + +#elif ROOTLESS_CHANGED_AREA==1 + // one big box + BoxRec box; + + box.x2 = box.x1 = pptInit->x; + box.y2 = box.y1 = pptInit->y; + while (--npt) { + pptInit++; + if (box.x1 > pptInit->x) + box.x1 = pptInit->x; + else if (box.x2 < pptInit->x) + box.x2 = pptInit->x; + if (box.y1 > pptInit->y) + box.y1 = pptInit->y; + else if (box.y2 < pptInit->y) + box.y2 = pptInit->y; + } + + box.x2++; + box.y2++; + + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + +#elif ROOTLESS_CHANGED_AREA==2 + // clever(?) method: accumulate point in 20-pixel radius + BoxRec box; + int firstx, firsty; + + box.x2 = box.x1 = firstx = pptInit->x; + box.y2 = box.y1 = firsty = pptInit->y; + while (--npt) { + pptInit++; + if (abs(pptInit->x - firstx) > 20 || + abs(pptInit->y - firsty) > 20) { + box.x2++; + box.y2++; + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + box.x2 = box.x1 = firstx = pptInit->x; + box.y2 = box.y1 = firsty = pptInit->y; + } else { + if (box.x1 > pptInit->x) box.x1 = pptInit->x; + else if (box.x2 < pptInit->x) box.x2 = pptInit->x; + if (box.y1 > pptInit->y) box.y1 = pptInit->y; + else if (box.y2 < pptInit->y) box.y2 = pptInit->y; + } + } + box.x2++; + box.y2++; + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox((WindowPtr) dst, &box); +#endif /* ROOTLESS_CHANGED_AREA */ + } + + GCOP_WRAP(pGC); + RL_DEBUG_MSG("polypoint end\n"); +} + +#undef ROOTLESS_CHANGED_AREA + +/* changed area is box around each line */ +static void RootlessPolylines(DrawablePtr dst, GCPtr pGC, + int mode, int npt, DDXPointPtr pptInit) +{ + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("poly lines start "); + + RootlessStartDrawing((WindowPtr) dst); + pGC->ops->Polylines(dst, pGC, mode, npt, pptInit); + + if (npt > 0) { + BoxRec box; + int extra = pGC->lineWidth >> 1; + + box.x2 = box.x1 = pptInit->x; + box.y2 = box.y1 = pptInit->y; + + if (npt > 1) { + if (pGC->joinStyle == JoinMiter) + extra = 6 * pGC->lineWidth; + else if (pGC->capStyle == CapProjecting) + extra = pGC->lineWidth; + } + + if (mode == CoordModePrevious) { + int x = box.x1; + int y = box.y1; + + while (--npt) { + pptInit++; + x += pptInit->x; + y += pptInit->y; + if (box.x1 > x) + box.x1 = x; + else if (box.x2 < x) + box.x2 = x; + if (box.y1 > y) + box.y1 = y; + else if (box.y2 < y) + box.y2 = y; + } + } else { + while (--npt) { + pptInit++; + if (box.x1 > pptInit->x) + box.x1 = pptInit->x; + else if (box.x2 < pptInit->x) + box.x2 = pptInit->x; + if (box.y1 > pptInit->y) + box.y1 = pptInit->y; + else if (box.y2 < pptInit->y) + box.y2 = pptInit->y; + } + } + + box.x2++; + box.y2++; + + if (extra) { + box.x1 -= extra; + box.x2 += extra; + box.y1 -= extra; + box.y2 += extra; + } + + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + } + + GCOP_WRAP(pGC); + RL_DEBUG_MSG("poly lines end\n"); +} + +/* changed area is box around each line segment */ +static void RootlessPolySegment(DrawablePtr dst, GCPtr pGC, + int nseg, xSegment *pSeg) +{ + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("poly segment start (win 0x%x)", dst); + + RootlessStartDrawing((WindowPtr) dst); + pGC->ops->PolySegment(dst, pGC, nseg, pSeg); + + if (nseg > 0) { + BoxRec box; + int extra = pGC->lineWidth; + + if (pGC->capStyle != CapProjecting) + extra >>= 1; + + if (pSeg->x2 > pSeg->x1) { + box.x1 = pSeg->x1; + box.x2 = pSeg->x2; + } else { + box.x2 = pSeg->x1; + box.x1 = pSeg->x2; + } + + if (pSeg->y2 > pSeg->y1) { + box.y1 = pSeg->y1; + box.y2 = pSeg->y2; + } else { + box.y2 = pSeg->y1; + box.y1 = pSeg->y2; + } + + while (--nseg) { + pSeg++; + if (pSeg->x2 > pSeg->x1) { + if (pSeg->x1 < box.x1) box.x1 = pSeg->x1; + if (pSeg->x2 > box.x2) box.x2 = pSeg->x2; + } else { + if (pSeg->x2 < box.x1) box.x1 = pSeg->x2; + if (pSeg->x1 > box.x2) box.x2 = pSeg->x1; + } + if (pSeg->y2 > pSeg->y1) { + if (pSeg->y1 < box.y1) box.y1 = pSeg->y1; + if (pSeg->y2 > box.y2) box.y2 = pSeg->y2; + } else { + if (pSeg->y2 < box.y1) box.y1 = pSeg->y2; + if (pSeg->y1 > box.y2) box.y2 = pSeg->y1; + } + } + + box.x2++; + box.y2++; + + if (extra) { + box.x1 -= extra; + box.x2 += extra; + box.y1 -= extra; + box.y2 += extra; + } + + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + } + + GCOP_WRAP(pGC); + RL_DEBUG_MSG("poly segment end\n"); +} + +/* changed area is box around each line (not entire rects) */ +static void RootlessPolyRectangle(DrawablePtr dst, GCPtr pGC, + int nRects, xRectangle *pRects) +{ + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("poly rectangle start "); + + RootlessStartDrawing((WindowPtr) dst); + pGC->ops->PolyRectangle(dst, pGC, nRects, pRects); + + if (nRects > 0) { + BoxRec box; + int offset1, offset2, offset3; + + offset2 = pGC->lineWidth; + if (!offset2) offset2 = 1; + offset1 = offset2 >> 1; + offset3 = offset2 - offset1; + + while (nRects--) { + box.x1 = pRects->x - offset1; + box.y1 = pRects->y - offset1; + box.x2 = box.x1 + pRects->width + offset2; + box.y2 = box.y1 + offset2; + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + + box.x1 = pRects->x - offset1; + box.y1 = pRects->y + offset3; + box.x2 = box.x1 + offset2; + box.y2 = box.y1 + pRects->height - offset2; + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + + box.x1 = pRects->x + pRects->width - offset1; + box.y1 = pRects->y + offset3; + box.x2 = box.x1 + offset2; + box.y2 = box.y1 + pRects->height - offset2; + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + + box.x1 = pRects->x - offset1; + box.y1 = pRects->y + pRects->height - offset1; + box.x2 = box.x1 + pRects->width + offset2; + box.y2 = box.y1 + offset2; + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + + pRects++; + } + } + + GCOP_WRAP(pGC); + RL_DEBUG_MSG("poly rectangle end\n"); +} + + +/* changed area is box around each arc (assumes all arcs are 360 degrees) */ +static void RootlessPolyArc(DrawablePtr dst, GCPtr pGC, int narcs, xArc *parcs) +{ + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("poly arc start "); + + RootlessStartDrawing((WindowPtr) dst); + pGC->ops->PolyArc(dst, pGC, narcs, parcs); + + if (narcs > 0) { + int extra = pGC->lineWidth >> 1; + BoxRec box; + + box.x1 = parcs->x; + box.x2 = box.x1 + parcs->width; + box.y1 = parcs->y; + box.y2 = box.y1 + parcs->height; + + /* should I break these up instead ? */ + + while (--narcs) { + parcs++; + if (box.x1 > parcs->x) + box.x1 = parcs->x; + if (box.x2 < (parcs->x + parcs->width)) + box.x2 = parcs->x + parcs->width; + if (box.y1 > parcs->y) + box.y1 = parcs->y; + if (box.y2 < (parcs->y + parcs->height)) + box.y2 = parcs->y + parcs->height; + } + + if (extra) { + box.x1 -= extra; + box.x2 += extra; + box.y1 -= extra; + box.y2 += extra; + } + + box.x2++; + box.y2++; + + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + } + + GCOP_WRAP(pGC); + RL_DEBUG_MSG("poly arc end\n"); +} + + +/* changed area is box around each poly */ +static void RootlessFillPolygon(DrawablePtr dst, GCPtr pGC, + int shape, int mode, int count, + DDXPointPtr pptInit) +{ + GC_SAVE(pGC); + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("fill poly start (win 0x%x, fillStyle 0x%x)", dst, + pGC->fillStyle); + + if (count <= 2) { + pGC->ops->FillPolygon(dst, pGC, shape, mode, count, pptInit); + } else { + DDXPointPtr ppt = pptInit; + int i = count; + BoxRec box; + + box.x2 = box.x1 = ppt->x; + box.y2 = box.y1 = ppt->y; + + if (mode != CoordModeOrigin) { + int x = box.x1; + int y = box.y1; + + while (--i) { + ppt++; + x += ppt->x; + y += ppt->y; + if (box.x1 > x) + box.x1 = x; + else if (box.x2 < x) + box.x2 = x; + if (box.y1 > y) + box.y1 = y; + else if (box.y2 < y) + box.y2 = y; + } + } else { + while (--i) { + ppt++; + if (box.x1 > ppt->x) + box.x1 = ppt->x; + else if (box.x2 < ppt->x) + box.x2 = ppt->x; + if (box.y1 > ppt->y) + box.y1 = ppt->y; + else if (box.y2 < ppt->y) + box.y2 = ppt->y; + } + } + + box.x2++; + box.y2++; + + RootlessStartDrawing((WindowPtr) dst); + + if (canAccelFill(dst, pGC)) + { + GC_UNSET_PM(pGC, dst); + } + + pGC->ops->FillPolygon(dst, pGC, shape, mode, count, pptInit); + + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + } + + GC_RESTORE(pGC, dst); + GCOP_WRAP(pGC); + RL_DEBUG_MSG("fill poly end\n"); +} + +/* changed area is the rects */ +static void RootlessPolyFillRect(DrawablePtr dst, GCPtr pGC, + int nRectsInit, xRectangle *pRectsInit) +{ + GC_SAVE(pGC); + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("fill rect start (win 0x%x, fillStyle 0x%x)", dst, + pGC->fillStyle); + + if (nRectsInit <= 0) { + pGC->ops->PolyFillRect(dst, pGC, nRectsInit, pRectsInit); + } else { + BoxRec box; + xRectangle *pRects = pRectsInit; + int nRects = nRectsInit; + + box.x1 = pRects->x; + box.x2 = box.x1 + pRects->width; + box.y1 = pRects->y; + box.y2 = box.y1 + pRects->height; + + while (--nRects) { + pRects++; + if (box.x1 > pRects->x) + box.x1 = pRects->x; + if (box.x2 < (pRects->x + pRects->width)) + box.x2 = pRects->x + pRects->width; + if (box.y1 > pRects->y) + box.y1 = pRects->y; + if (box.y2 < (pRects->y + pRects->height)) + box.y2 = pRects->y + pRects->height; + } + + RootlessStartDrawing((WindowPtr) dst); + + if (canAccelFill(dst, pGC)) + { + GC_UNSET_PM(pGC, dst); + } + + pGC->ops->PolyFillRect(dst, pGC, nRectsInit, pRectsInit); + + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + } + + GC_RESTORE(pGC, dst); + GCOP_WRAP(pGC); + RL_DEBUG_MSG("fill rect end\n"); +} + + +/* changed area is box around each arc (assuming arcs are all 360 degrees) */ +static void RootlessPolyFillArc(DrawablePtr dst, GCPtr pGC, + int narcsInit, xArc *parcsInit) +{ + GC_SAVE(pGC); + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("fill arc start "); + + if (narcsInit > 0) { + BoxRec box; + int narcs = narcsInit; + xArc *parcs = parcsInit; + + box.x1 = parcs->x; + box.x2 = box.x1 + parcs->width; + box.y1 = parcs->y; + box.y2 = box.y1 + parcs->height; + + /* should I break these up instead ? */ + + while (--narcs) { + parcs++; + if (box.x1 > parcs->x) + box.x1 = parcs->x; + if (box.x2 < (parcs->x + parcs->width)) + box.x2 = parcs->x + parcs->width; + if (box.y1 > parcs->y) + box.y1 = parcs->y; + if (box.y2 < (parcs->y + parcs->height)) + box.y2 = parcs->y + parcs->height; + } + + RootlessStartDrawing((WindowPtr) dst); + + if (canAccelFill(dst, pGC)) + { + GC_UNSET_PM(pGC, dst); + } + + pGC->ops->PolyFillArc(dst, pGC, narcsInit, parcsInit); + + TRIM_AND_TRANSLATE_BOX(box, dst, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + } else { + pGC->ops->PolyFillArc(dst, pGC, narcsInit, parcsInit); + } + + GC_RESTORE(pGC, dst); + GCOP_WRAP(pGC); + RL_DEBUG_MSG("fill arc end\n"); +} + + +static void RootlessImageText8(DrawablePtr dst, GCPtr pGC, + int x, int y, int count, char *chars) +{ + GC_SAVE(pGC); + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("imagetext8 start "); + + if (count > 0) { + int top, bot, Min, Max; + BoxRec box; + + top = max(FONTMAXBOUNDS(pGC->font, ascent), FONTASCENT(pGC->font)); + bot = max(FONTMAXBOUNDS(pGC->font, descent), FONTDESCENT(pGC->font)); + + Min = count * FONTMINBOUNDS(pGC->font, characterWidth); + if (Min > 0) Min = 0; + Max = count * FONTMAXBOUNDS(pGC->font, characterWidth); + if (Max < 0) Max = 0; + + /* ugh */ + box.x1 = dst->x + x + Min + + FONTMINBOUNDS(pGC->font, leftSideBearing); + box.x2 = dst->x + x + Max + + FONTMAXBOUNDS(pGC->font, rightSideBearing); + + box.y1 = dst->y + y - top; + box.y2 = dst->y + y + bot; + + RootlessStartDrawing((WindowPtr) dst); + + if (canAccelFill(dst, pGC)) + { + GC_UNSET_PM(pGC, dst); + } + + pGC->ops->ImageText8(dst, pGC, x, y, count, chars); + + TRIM_BOX(box, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + } else { + pGC->ops->ImageText8(dst, pGC, x, y, count, chars); + } + + GC_RESTORE(pGC, dst); + GCOP_WRAP(pGC); + RL_DEBUG_MSG("imagetext8 end\n"); +} + +static int RootlessPolyText8(DrawablePtr dst, GCPtr pGC, + int x, int y, int count, char *chars) +{ + int width; // the result, sorta + + GCOP_UNWRAP(pGC); + + RL_DEBUG_MSG("polytext8 start "); + + RootlessStartDrawing((WindowPtr) dst); + width = pGC->ops->PolyText8(dst, pGC, x, y, count, chars); + width -= x; + + if (width > 0) { + BoxRec box; + + /* ugh */ + box.x1 = dst->x + x + FONTMINBOUNDS(pGC->font, leftSideBearing); + box.x2 = dst->x + x + FONTMAXBOUNDS(pGC->font, rightSideBearing); + + if (count > 1) { + if (width > 0) box.x2 += width; + else box.x1 += width; + } + + box.y1 = dst->y + y - FONTMAXBOUNDS(pGC->font, ascent); + box.y2 = dst->y + y + FONTMAXBOUNDS(pGC->font, descent); + + TRIM_BOX(box, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + } + + GCOP_WRAP(pGC); + RL_DEBUG_MSG("polytext8 end\n"); + return width + x; +} + +static void RootlessImageText16(DrawablePtr dst, GCPtr pGC, + int x, int y, int count, unsigned short *chars) +{ + GC_SAVE(pGC); + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("imagetext16 start "); + + if (count > 0) { + int top, bot, Min, Max; + BoxRec box; + + top = max(FONTMAXBOUNDS(pGC->font, ascent), FONTASCENT(pGC->font)); + bot = max(FONTMAXBOUNDS(pGC->font, descent), FONTDESCENT(pGC->font)); + + Min = count * FONTMINBOUNDS(pGC->font, characterWidth); + if (Min > 0) Min = 0; + Max = count * FONTMAXBOUNDS(pGC->font, characterWidth); + if (Max < 0) Max = 0; + + /* ugh */ + box.x1 = dst->x + x + Min + + FONTMINBOUNDS(pGC->font, leftSideBearing); + box.x2 = dst->x + x + Max + + FONTMAXBOUNDS(pGC->font, rightSideBearing); + + box.y1 = dst->y + y - top; + box.y2 = dst->y + y + bot; + + RootlessStartDrawing((WindowPtr) dst); + + if (canAccelFill(dst, pGC)) + { + GC_UNSET_PM(pGC, dst); + } + + pGC->ops->ImageText16(dst, pGC, x, y, count, chars); + + TRIM_BOX(box, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + } else { + pGC->ops->ImageText16(dst, pGC, x, y, count, chars); + } + + GC_RESTORE(pGC, dst); + GCOP_WRAP(pGC); + RL_DEBUG_MSG("imagetext16 end\n"); +} + +static int RootlessPolyText16(DrawablePtr dst, GCPtr pGC, + int x, int y, int count, unsigned short *chars) +{ + int width; // the result, sorta + + GCOP_UNWRAP(pGC); + + RL_DEBUG_MSG("polytext16 start "); + + RootlessStartDrawing((WindowPtr) dst); + width = pGC->ops->PolyText16(dst, pGC, x, y, count, chars); + width -= x; + + if (width > 0) { + BoxRec box; + + /* ugh */ + box.x1 = dst->x + x + FONTMINBOUNDS(pGC->font, leftSideBearing); + box.x2 = dst->x + x + FONTMAXBOUNDS(pGC->font, rightSideBearing); + + if (count > 1) { + if (width > 0) box.x2 += width; + else box.x1 += width; + } + + box.y1 = dst->y + y - FONTMAXBOUNDS(pGC->font, ascent); + box.y2 = dst->y + y + FONTMAXBOUNDS(pGC->font, descent); + + TRIM_BOX(box, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + } + + GCOP_WRAP(pGC); + RL_DEBUG_MSG("polytext16 end\n"); + return width + x; +} + +static void RootlessImageGlyphBlt(DrawablePtr dst, GCPtr pGC, + int x, int y, unsigned int nglyphInit, + CharInfoPtr *ppciInit, pointer unused) +{ + GC_SAVE(pGC); + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("imageglyph start "); + + if (nglyphInit > 0) { + int top, bot, width = 0; + BoxRec box; + unsigned int nglyph = nglyphInit; + CharInfoPtr *ppci = ppciInit; + + top = max(FONTMAXBOUNDS(pGC->font, ascent), FONTASCENT(pGC->font)); + bot = max(FONTMAXBOUNDS(pGC->font, descent), FONTDESCENT(pGC->font)); + + box.x1 = ppci[0]->metrics.leftSideBearing; + if (box.x1 > 0) box.x1 = 0; + box.x2 = ppci[nglyph - 1]->metrics.rightSideBearing - + ppci[nglyph - 1]->metrics.characterWidth; + if (box.x2 < 0) box.x2 = 0; + + box.x2 += dst->x + x; + box.x1 += dst->x + x; + + while (nglyph--) { + width += (*ppci)->metrics.characterWidth; + ppci++; + } + + if (width > 0) + box.x2 += width; + else + box.x1 += width; + + box.y1 = dst->y + y - top; + box.y2 = dst->y + y + bot; + + RootlessStartDrawing((WindowPtr) dst); + + if (canAccelFill(dst, pGC)) + { + GC_UNSET_PM(pGC, dst); + } + + pGC->ops->ImageGlyphBlt(dst, pGC, x, y, nglyphInit, ppciInit, unused); + + TRIM_BOX(box, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + } else { + pGC->ops->ImageGlyphBlt(dst, pGC, x, y, nglyphInit, ppciInit, unused); + } + + GC_RESTORE(pGC, dst); + GCOP_WRAP(pGC); + RL_DEBUG_MSG("imageglyph end\n"); +} + +static void RootlessPolyGlyphBlt(DrawablePtr dst, GCPtr pGC, + int x, int y, unsigned int nglyph, + CharInfoPtr *ppci, pointer pglyphBase) +{ + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("polyglyph start "); + + RootlessStartDrawing((WindowPtr) dst); + pGC->ops->PolyGlyphBlt(dst, pGC, x, y, nglyph, ppci, pglyphBase); + + if (nglyph > 0) { + BoxRec box; + + /* ugh */ + box.x1 = dst->x + x + ppci[0]->metrics.leftSideBearing; + box.x2 = dst->x + x + ppci[nglyph - 1]->metrics.rightSideBearing; + + if (nglyph > 1) { + int width = 0; + + while (--nglyph) { + width += (*ppci)->metrics.characterWidth; + ppci++; + } + + if (width > 0) box.x2 += width; + else box.x1 += width; + } + + box.y1 = dst->y + y - FONTMAXBOUNDS(pGC->font, ascent); + box.y2 = dst->y + y + FONTMAXBOUNDS(pGC->font, descent); + + TRIM_BOX(box, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + } + + GCOP_WRAP(pGC); + RL_DEBUG_MSG("polyglyph end\n"); +} + + +/* changed area is in dest */ +static void +RootlessPushPixels(GCPtr pGC, PixmapPtr pBitMap, DrawablePtr dst, + int dx, int dy, int xOrg, int yOrg) +{ + BoxRec box; + + GCOP_UNWRAP(pGC); + RL_DEBUG_MSG("push pixels start "); + + RootlessStartDrawing((WindowPtr) dst); + pGC->ops->PushPixels(pGC, pBitMap, dst, dx, dy, xOrg, yOrg); + + box.x1 = xOrg + dst->x; + box.x2 = box.x1 + dx; + box.y1 = yOrg + dst->y; + box.y2 = box.y1 + dy; + + TRIM_BOX(box, pGC); + if (BOX_NOT_EMPTY(box)) + RootlessDamageBox ((WindowPtr) dst, &box); + + GCOP_WRAP(pGC); + RL_DEBUG_MSG("push pixels end\n"); +} diff --git a/miext/rootless/rootlessScreen.c b/miext/rootless/rootlessScreen.c new file mode 100644 index 0000000..3211c0f --- /dev/null +++ b/miext/rootless/rootlessScreen.c @@ -0,0 +1,755 @@ +/* + * Screen routines for generic rootless X server + */ +/* + * Copyright (c) 2001 Greg Parker. All Rights Reserved. + * Copyright (c) 2002-2003 Torrey T. Lyons. All Rights Reserved. + * Copyright (c) 2002 Apple Computer, Inc. All rights reserved. + * + * 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 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 ABOVE LISTED COPYRIGHT HOLDER(S) 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. + * + * Except as contained in this notice, the name(s) of the above copyright + * holders shall not be used in advertising or otherwise to promote the sale, + * use or other dealings in this Software without prior written authorization. + */ + + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include "mi.h" +#include "scrnintstr.h" +#include "gcstruct.h" +#include "pixmapstr.h" +#include "windowstr.h" +#include "propertyst.h" +#include "mivalidate.h" +#include "picturestr.h" +#include "colormapst.h" + +#include <sys/types.h> +#include <sys/stat.h> +#include <fcntl.h> +#include <string.h> + +#include "rootlessCommon.h" +#include "rootlessWindow.h" + +/* In milliseconds */ +#ifndef ROOTLESS_REDISPLAY_DELAY +#define ROOTLESS_REDISPLAY_DELAY 10 +#endif + +extern int RootlessMiValidateTree(WindowPtr pRoot, WindowPtr pChild, + VTKind kind); +extern Bool RootlessCreateGC(GCPtr pGC); + +// Initialize globals +DevPrivateKeyRec rootlessGCPrivateKeyRec; +DevPrivateKeyRec rootlessScreenPrivateKeyRec; +DevPrivateKeyRec rootlessWindowPrivateKeyRec; +DevPrivateKeyRec rootlessWindowOldPixmapPrivateKeyRec; + +/* + * RootlessUpdateScreenPixmap + * miCreateScreenResources does not like a null framebuffer pointer, + * it leaves the screen pixmap with an uninitialized data pointer. + * Thus, rootless implementations typically set the framebuffer width + * to zero so that miCreateScreenResources does not allocate a screen + * pixmap for us. We allocate our own screen pixmap here since we need + * the screen pixmap to be valid (e.g. CopyArea from the root window). + */ +void +RootlessUpdateScreenPixmap(ScreenPtr pScreen) +{ + RootlessScreenRec *s = SCREENREC(pScreen); + PixmapPtr pPix; + unsigned int rowbytes; + + pPix = (*pScreen->GetScreenPixmap)(pScreen); + if (pPix == NULL) { + pPix = (*pScreen->CreatePixmap)(pScreen, 0, 0, pScreen->rootDepth, 0); + (*pScreen->SetScreenPixmap)(pPix); + } + + rowbytes = PixmapBytePad(pScreen->width, pScreen->rootDepth); + + if (s->pixmap_data_size < rowbytes) { + free(s->pixmap_data); + + s->pixmap_data_size = rowbytes; + s->pixmap_data = malloc(s->pixmap_data_size); + if (s->pixmap_data == NULL) + return; + + memset(s->pixmap_data, 0xFF, s->pixmap_data_size); + + pScreen->ModifyPixmapHeader(pPix, pScreen->width, pScreen->height, + pScreen->rootDepth, + BitsPerPixel(pScreen->rootDepth), + 0, s->pixmap_data); + /* ModifyPixmapHeader ignores zero arguments, so install rowbytes + by hand. */ + pPix->devKind = 0; + } +} + + +/* + * RootlessCreateScreenResources + * Rootless implementations typically set a null framebuffer pointer, which + * causes problems with miCreateScreenResources. We fix things up here. + */ +static Bool +RootlessCreateScreenResources(ScreenPtr pScreen) +{ + Bool ret = TRUE; + + SCREEN_UNWRAP(pScreen, CreateScreenResources); + + if (pScreen->CreateScreenResources != NULL) + ret = (*pScreen->CreateScreenResources)(pScreen); + + SCREEN_WRAP(pScreen, CreateScreenResources); + + if (!ret) + return ret; + + /* Make sure we have a valid screen pixmap. */ + + RootlessUpdateScreenPixmap(pScreen); + + return ret; +} + + +static Bool +RootlessCloseScreen(int i, ScreenPtr pScreen) +{ + RootlessScreenRec *s; + + s = SCREENREC(pScreen); + + // fixme unwrap everything that was wrapped? + pScreen->CloseScreen = s->CloseScreen; + + if (s->pixmap_data != NULL) { + free(s->pixmap_data); + s->pixmap_data = NULL; + s->pixmap_data_size = 0; + } + + free(s); + return pScreen->CloseScreen(i, pScreen); +} + + +static void +RootlessGetImage(DrawablePtr pDrawable, int sx, int sy, int w, int h, + unsigned int format, unsigned long planeMask, char *pdstLine) +{ + ScreenPtr pScreen = pDrawable->pScreen; + SCREEN_UNWRAP(pScreen, GetImage); + + if (pDrawable->type == DRAWABLE_WINDOW) { + int x0, y0, x1, y1; + RootlessWindowRec *winRec; + + // Many apps use GetImage to sync with the visible frame buffer + // FIXME: entire screen or just window or all screens? + RootlessRedisplayScreen(pScreen); + + // RedisplayScreen stops drawing, so we need to start it again + RootlessStartDrawing((WindowPtr)pDrawable); + + /* Check that we have some place to read from. */ + winRec = WINREC(TopLevelParent((WindowPtr) pDrawable)); + if (winRec == NULL) + goto out; + + /* Clip to top-level window bounds. */ + /* FIXME: fbGetImage uses the width parameter to calculate the + stride of the destination pixmap. If w is clipped, the data + returned will be garbage, although we will not crash. */ + + x0 = pDrawable->x + sx; + y0 = pDrawable->y + sy; + x1 = x0 + w; + y1 = y0 + h; + + x0 = max (x0, winRec->x); + y0 = max (y0, winRec->y); + x1 = min (x1, winRec->x + winRec->width); + y1 = min (y1, winRec->y + winRec->height); + + sx = x0 - pDrawable->x; + sy = y0 - pDrawable->y; + w = x1 - x0; + h = y1 - y0; + + if (w <= 0 || h <= 0) + goto out; + } + + pScreen->GetImage(pDrawable, sx, sy, w, h, format, planeMask, pdstLine); + +out: + SCREEN_WRAP(pScreen, GetImage); +} + + +/* + * RootlessSourceValidate + * CopyArea and CopyPlane use a GC tied to the destination drawable. + * StartDrawing/StopDrawing wrappers won't be called if source is + * a visible window but the destination isn't. So, we call StartDrawing + * here and leave StopDrawing for the block handler. + */ +static void +RootlessSourceValidate(DrawablePtr pDrawable, int x, int y, int w, int h, + unsigned int subWindowMode) +{ + SCREEN_UNWRAP(pDrawable->pScreen, SourceValidate); + if (pDrawable->type == DRAWABLE_WINDOW) { + WindowPtr pWin = (WindowPtr)pDrawable; + RootlessStartDrawing(pWin); + } + if (pDrawable->pScreen->SourceValidate) { + pDrawable->pScreen->SourceValidate(pDrawable, x, y, w, h, subWindowMode); + } + SCREEN_WRAP(pDrawable->pScreen, SourceValidate); +} + +static void +RootlessComposite(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); + WindowPtr srcWin, dstWin, maskWin = NULL; + + if (pMask) { // pMask can be NULL + maskWin = (pMask->pDrawable->type == DRAWABLE_WINDOW) ? + (WindowPtr)pMask->pDrawable : NULL; + } + srcWin = (pSrc->pDrawable && pSrc->pDrawable->type == DRAWABLE_WINDOW) ? + (WindowPtr)pSrc->pDrawable : NULL; + dstWin = (pDst->pDrawable->type == DRAWABLE_WINDOW) ? + (WindowPtr)pDst->pDrawable : NULL; + + // SCREEN_UNWRAP(ps, Composite); + ps->Composite = SCREENREC(pScreen)->Composite; + + if (srcWin && IsFramedWindow(srcWin)) + RootlessStartDrawing(srcWin); + if (maskWin && IsFramedWindow(maskWin)) + RootlessStartDrawing(maskWin); + if (dstWin && IsFramedWindow(dstWin)) + RootlessStartDrawing(dstWin); + + ps->Composite(op, pSrc, pMask, pDst, + xSrc, ySrc, xMask, yMask, + xDst, yDst, width, height); + + if (dstWin && IsFramedWindow(dstWin)) { + RootlessDamageRect(dstWin, xDst, yDst, width, height); + } + + ps->Composite = RootlessComposite; + // SCREEN_WRAP(ps, Composite); +} + + +static void +RootlessGlyphs(CARD8 op, PicturePtr pSrc, PicturePtr pDst, + PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, + int nlist, GlyphListPtr list, GlyphPtr *glyphs) +{ + ScreenPtr pScreen = pDst->pDrawable->pScreen; + PictureScreenPtr ps = GetPictureScreen(pScreen); + int x, y; + int n; + GlyphPtr glyph; + WindowPtr srcWin, dstWin; + + srcWin = (pSrc->pDrawable && pSrc->pDrawable->type == DRAWABLE_WINDOW) ? + (WindowPtr)pSrc->pDrawable : NULL; + dstWin = (pDst->pDrawable->type == DRAWABLE_WINDOW) ? + (WindowPtr)pDst->pDrawable : NULL; + + if (srcWin && IsFramedWindow(srcWin)) RootlessStartDrawing(srcWin); + if (dstWin && IsFramedWindow(dstWin)) RootlessStartDrawing(dstWin); + + //SCREEN_UNWRAP(ps, Glyphs); + ps->Glyphs = SCREENREC(pScreen)->Glyphs; + ps->Glyphs(op, pSrc, pDst, maskFormat, xSrc, ySrc, nlist, list, glyphs); + ps->Glyphs = RootlessGlyphs; + //SCREEN_WRAP(ps, Glyphs); + + if (dstWin && IsFramedWindow(dstWin)) { + x = xSrc; + y = ySrc; + + while (nlist--) { + x += list->xOff; + y += list->yOff; + n = list->len; + + /* Calling DamageRect for the bounding box of each glyph is + inefficient. So compute the union of all glyphs in a list + and damage that. */ + + if (n > 0) { + BoxRec box; + + glyph = *glyphs++; + + box.x1 = x - glyph->info.x; + box.y1 = y - glyph->info.y; + box.x2 = box.x1 + glyph->info.width; + box.y2 = box.y1 + glyph->info.height; + + x += glyph->info.xOff; + y += glyph->info.yOff; + + while (--n > 0) { + short x1, y1, x2, y2; + + glyph = *glyphs++; + + x1 = x - glyph->info.x; + y1 = y - glyph->info.y; + x2 = x1 + glyph->info.width; + y2 = y1 + glyph->info.height; + + box.x1 = max (box.x1, x1); + box.y1 = max (box.y1, y1); + box.x2 = max (box.x2, x2); + box.y2 = max (box.y2, y2); + + x += glyph->info.xOff; + y += glyph->info.yOff; + } + + RootlessDamageBox(dstWin, &box); + } + list++; + } + } +} + + +/* + * RootlessValidateTree + * ValidateTree is modified in two ways: + * - top-level windows don't clip each other + * - windows aren't clipped against root. + * These only matter when validating from the root. + */ +static int +RootlessValidateTree(WindowPtr pParent, WindowPtr pChild, VTKind kind) +{ + int result; + RegionRec saveRoot; + ScreenPtr pScreen = pParent->drawable.pScreen; + + SCREEN_UNWRAP(pScreen, ValidateTree); + RL_DEBUG_MSG("VALIDATETREE start "); + + // Use our custom version to validate from root + if (IsRoot(pParent)) { + RL_DEBUG_MSG("custom "); + result = RootlessMiValidateTree(pParent, pChild, kind); + } else { + HUGE_ROOT(pParent); + result = pScreen->ValidateTree(pParent, pChild, kind); + NORMAL_ROOT(pParent); + } + + SCREEN_WRAP(pScreen, ValidateTree); + RL_DEBUG_MSG("VALIDATETREE end\n"); + + return result; +} + + +/* + * RootlessMarkOverlappedWindows + * MarkOverlappedWindows is modified to ignore overlapping + * top-level windows. + */ +static Bool +RootlessMarkOverlappedWindows(WindowPtr pWin, WindowPtr pFirst, + WindowPtr *ppLayerWin) +{ + RegionRec saveRoot; + Bool result; + ScreenPtr pScreen = pWin->drawable.pScreen; + SCREEN_UNWRAP(pScreen, MarkOverlappedWindows); + RL_DEBUG_MSG("MARKOVERLAPPEDWINDOWS start "); + + HUGE_ROOT(pWin); + if (IsRoot(pWin)) { + // root - mark nothing + RL_DEBUG_MSG("is root not marking "); + result = FALSE; + } + else if (! IsTopLevel(pWin)) { + // not top-level window - mark normally + result = pScreen->MarkOverlappedWindows(pWin, pFirst, ppLayerWin); + } + else { + //top-level window - mark children ONLY - NO overlaps with sibs (?) + // This code copied from miMarkOverlappedWindows() + + register WindowPtr pChild; + Bool anyMarked = FALSE; + MarkWindowProcPtr MarkWindow = pScreen->MarkWindow; + + RL_DEBUG_MSG("is top level! "); + /* single layered systems are easy */ + if (ppLayerWin) *ppLayerWin = pWin; + + if (pWin == pFirst) { + /* Blindly mark pWin and all of its inferiors. This is a slight + * overkill if there are mapped windows that outside pWin's border, + * but it's better than wasting time on RectIn checks. + */ + pChild = pWin; + while (1) { + if (pChild->viewable) { + if (RegionBroken(&pChild->winSize)) + SetWinSize (pChild); + if (RegionBroken(&pChild->borderSize)) + SetBorderSize (pChild); + (* MarkWindow)(pChild); + if (pChild->firstChild) { + pChild = pChild->firstChild; + continue; + } + } + while (!pChild->nextSib && (pChild != pWin)) + pChild = pChild->parent; + if (pChild == pWin) + break; + pChild = pChild->nextSib; + } + anyMarked = TRUE; + pFirst = pFirst->nextSib; + } + if (anyMarked) + (* MarkWindow)(pWin->parent); + result = anyMarked; + } + NORMAL_ROOT(pWin); + SCREEN_WRAP(pScreen, MarkOverlappedWindows); + RL_DEBUG_MSG("MARKOVERLAPPEDWINDOWS end\n"); + + return result; +} + +static void expose_1 (WindowPtr pWin) { + WindowPtr pChild; + + if (!pWin->realized) + return; + + miPaintWindow(pWin, &pWin->borderClip, PW_BACKGROUND); + + /* FIXME: comments in windowstr.h indicate that borderClip doesn't + include subwindow visibility. But I'm not so sure.. so we may + be exposing too much.. */ + + miSendExposures (pWin, &pWin->borderClip, + pWin->drawable.x, pWin->drawable.y); + + for (pChild = pWin->firstChild; pChild != NULL; pChild = pChild->nextSib) + expose_1 (pChild); +} + +void +RootlessScreenExpose (ScreenPtr pScreen) +{ + expose_1 (pScreen->root); +} + + +ColormapPtr +RootlessGetColormap (ScreenPtr pScreen) +{ + RootlessScreenRec *s = SCREENREC (pScreen); + + return s->colormap; +} + +static void +RootlessInstallColormap (ColormapPtr pMap) +{ + ScreenPtr pScreen = pMap->pScreen; + RootlessScreenRec *s = SCREENREC (pScreen); + + SCREEN_UNWRAP(pScreen, InstallColormap); + + if (s->colormap != pMap) { + s->colormap = pMap; + s->colormap_changed = TRUE; + RootlessQueueRedisplay (pScreen); + } + + pScreen->InstallColormap (pMap); + + SCREEN_WRAP (pScreen, InstallColormap); +} + +static void +RootlessUninstallColormap (ColormapPtr pMap) +{ + ScreenPtr pScreen = pMap->pScreen; + RootlessScreenRec *s = SCREENREC (pScreen); + + SCREEN_UNWRAP(pScreen, UninstallColormap); + + if (s->colormap == pMap) + s->colormap = NULL; + + pScreen->UninstallColormap (pMap); + + SCREEN_WRAP(pScreen, UninstallColormap); +} + +static void +RootlessStoreColors (ColormapPtr pMap, int ndef, xColorItem *pdef) +{ + ScreenPtr pScreen = pMap->pScreen; + RootlessScreenRec *s = SCREENREC (pScreen); + + SCREEN_UNWRAP(pScreen, StoreColors); + + if (s->colormap == pMap && ndef > 0) { + s->colormap_changed = TRUE; + RootlessQueueRedisplay (pScreen); + } + + pScreen->StoreColors (pMap, ndef, pdef); + + SCREEN_WRAP(pScreen, StoreColors); +} + + +static CARD32 +RootlessRedisplayCallback(OsTimerPtr timer, CARD32 time, void *arg) +{ + RootlessScreenRec *screenRec = arg; + + if (!screenRec->redisplay_queued) { + /* No update needed. Stop the timer. */ + + screenRec->redisplay_timer_set = FALSE; + return 0; + } + + screenRec->redisplay_queued = FALSE; + + /* Mark that we should redisplay before waiting for I/O next time */ + screenRec->redisplay_expired = TRUE; + + /* Reinstall the timer immediately, so we get as close to our + redisplay interval as possible. */ + + return ROOTLESS_REDISPLAY_DELAY; +} + + +/* + * RootlessQueueRedisplay + * Queue a redisplay after a timer delay to ensure we do not redisplay + * too frequently. + */ +void +RootlessQueueRedisplay(ScreenPtr pScreen) +{ + RootlessScreenRec *screenRec = SCREENREC(pScreen); + + screenRec->redisplay_queued = TRUE; + + if (screenRec->redisplay_timer_set) + return; + + screenRec->redisplay_timer = TimerSet(screenRec->redisplay_timer, + 0, ROOTLESS_REDISPLAY_DELAY, + RootlessRedisplayCallback, + screenRec); + screenRec->redisplay_timer_set = TRUE; +} + + +/* + * RootlessBlockHandler + * If the redisplay timer has expired, flush drawing before blocking + * on select(). + */ +static void +RootlessBlockHandler(pointer pbdata, OSTimePtr pTimeout, pointer pReadmask) +{ + ScreenPtr pScreen = pbdata; + RootlessScreenRec *screenRec = SCREENREC(pScreen); + + if (screenRec->redisplay_expired) { + screenRec->redisplay_expired = FALSE; + + RootlessRedisplayScreen(pScreen); + } +} + + +static void +RootlessWakeupHandler(pointer data, int i, pointer LastSelectMask) +{ + // nothing here +} + + +static Bool +RootlessAllocatePrivates(ScreenPtr pScreen) +{ + RootlessScreenRec *s; + + if (!dixRegisterPrivateKey(&rootlessGCPrivateKeyRec, PRIVATE_GC, sizeof(RootlessGCRec))) + return FALSE; + if (!dixRegisterPrivateKey(&rootlessScreenPrivateKeyRec, PRIVATE_SCREEN, 0)) + return FALSE; + if (!dixRegisterPrivateKey(&rootlessWindowPrivateKeyRec, PRIVATE_WINDOW, 0)) + return FALSE; + if (!dixRegisterPrivateKey(&rootlessWindowOldPixmapPrivateKeyRec, PRIVATE_WINDOW, 0)) + return FALSE; + + s = malloc(sizeof(RootlessScreenRec)); + if (! s) return FALSE; + SETSCREENREC(pScreen, s); + + s->pixmap_data = NULL; + s->pixmap_data_size = 0; + + s->redisplay_timer = NULL; + s->redisplay_timer_set = FALSE; + + return TRUE; +} + + +static void +RootlessWrap(ScreenPtr pScreen) +{ + RootlessScreenRec *s = SCREENREC(pScreen); + +#define WRAP(a) \ + if (pScreen->a) { \ + s->a = pScreen->a; \ + } else { \ + RL_DEBUG_MSG("null screen fn " #a "\n"); \ + s->a = NULL; \ + } \ + pScreen->a = Rootless##a + + WRAP(CreateScreenResources); + WRAP(CloseScreen); + WRAP(CreateGC); + WRAP(CopyWindow); + WRAP(GetImage); + WRAP(SourceValidate); + WRAP(CreateWindow); + WRAP(DestroyWindow); + WRAP(RealizeWindow); + WRAP(UnrealizeWindow); + WRAP(MoveWindow); + WRAP(PositionWindow); + WRAP(ResizeWindow); + WRAP(RestackWindow); + WRAP(ReparentWindow); + WRAP(ChangeBorderWidth); + WRAP(MarkOverlappedWindows); + WRAP(ValidateTree); + WRAP(ChangeWindowAttributes); + WRAP(InstallColormap); + WRAP(UninstallColormap); + WRAP(StoreColors); + + WRAP(SetShape); + + { + // Composite and Glyphs don't use normal screen wrapping + PictureScreenPtr ps = GetPictureScreen(pScreen); + s->Composite = ps->Composite; + ps->Composite = RootlessComposite; + s->Glyphs = ps->Glyphs; + ps->Glyphs = RootlessGlyphs; + } + + // WRAP(ClearToBackground); fixme put this back? useful for shaped wins? + +#undef WRAP +} + + +/* + * RootlessInit + * Called by the rootless implementation to initialize the rootless layer. + * Rootless wraps lots of stuff and needs a bunch of devPrivates. + */ +Bool RootlessInit(ScreenPtr pScreen, RootlessFrameProcsPtr procs) +{ + RootlessScreenRec *s; + + if (!RootlessAllocatePrivates(pScreen)) + return FALSE; + + s = SCREENREC(pScreen); + + s->imp = procs; + s->colormap = NULL; + s->redisplay_expired = FALSE; + + RootlessWrap(pScreen); + + if (!RegisterBlockAndWakeupHandlers(RootlessBlockHandler, + RootlessWakeupHandler, + (pointer) pScreen)) + { + return FALSE; + } + + return TRUE; +} + +void RootlessUpdateRooted (Bool state) { + int i; + + if (!state) + { + for (i = 0; i < screenInfo.numScreens; i++) + RootlessDisableRoot (screenInfo.screens[i]); + } + else + { + for (i = 0; i < screenInfo.numScreens; i++) + RootlessEnableRoot (screenInfo.screens[i]); + } +} diff --git a/miext/rootless/rootlessValTree.c b/miext/rootless/rootlessValTree.c new file mode 100644 index 0000000..d242600 --- /dev/null +++ b/miext/rootless/rootlessValTree.c @@ -0,0 +1,623 @@ +/* + * Calculate window clip lists for rootless mode + * + * This file is very closely based on mivaltree.c. + */ + +/* + * mivaltree.c -- + * Functions for recalculating window clip lists. Main function + * is miValidateTree. + * + +Copyright 1987, 1988, 1989, 1998 The Open Group + +All Rights Reserved. + +The above copyright notice and this permission notice 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 +OPEN GROUP 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. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + + * + * Copyright 1987, 1988, 1989 by + * Digital Equipment Corporation, Maynard, Massachusetts, + * + * All Rights Reserved + * + * Permission to use, copy, modify, and distribute this software and its + * documentation for any purpose and without fee is hereby granted, + * 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 Digital not be + * used in advertising or publicity pertaining to distribution of the + * software without specific, written prior permission. + * + * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING + * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL + * DIGITAL 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. + * + ******************************************************************/ + +/* The panoramix components contained the following notice */ +/***************************************************************** + +Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts. + +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. + +The above copyright notice and this permission notice 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 +DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING, +BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL 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. + +Except as contained in this notice, the name of Digital Equipment Corporation +shall not be used in advertising or otherwise to promote the sale, use or other +dealings in this Software without prior written authorization from Digital +Equipment Corporation. + +******************************************************************/ + /* + * Aug '86: Susan Angebranndt -- original code + * July '87: Adam de Boor -- substantially modified and commented + * Summer '89: Joel McCormack -- so fast you wouldn't believe it possible. + * In particular, much improved code for window mapping and + * circulating. + * Bob Scheifler -- avoid miComputeClips for unmapped windows, + * valdata changes + */ +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <stddef.h> /* For NULL */ +#include <X11/X.h> +#include "scrnintstr.h" +#include "validate.h" +#include "windowstr.h" +#include "mi.h" +#include "regionstr.h" +#include "mivalidate.h" + +#include "globals.h" + +int RootlessMiValidateTree (WindowPtr pRoot, WindowPtr pChild, VTKind kind); + +/* + * Compute the visibility of a shaped window + */ +static int +RootlessShapedWindowIn (RegionPtr universe, + RegionPtr bounding, BoxPtr rect, int x, int y) +{ + BoxRec box; + register BoxPtr boundBox; + int nbox; + Bool someIn, someOut; + register int t, x1, y1, x2, y2; + + nbox = RegionNumRects (bounding); + boundBox = RegionRects (bounding); + someIn = someOut = FALSE; + x1 = rect->x1; + y1 = rect->y1; + x2 = rect->x2; + y2 = rect->y2; + while (nbox--) + { + if ((t = boundBox->x1 + x) < x1) + t = x1; + box.x1 = t; + if ((t = boundBox->y1 + y) < y1) + t = y1; + box.y1 = t; + if ((t = boundBox->x2 + x) > x2) + t = x2; + box.x2 = t; + if ((t = boundBox->y2 + y) > y2) + t = y2; + box.y2 = t; + if (box.x1 > box.x2) + box.x2 = box.x1; + if (box.y1 > box.y2) + box.y2 = box.y1; + switch (RegionContainsRect(universe, &box)) + { + case rgnIN: + if (someOut) + return rgnPART; + someIn = TRUE; + break; + case rgnOUT: + if (someIn) + return rgnPART; + someOut = TRUE; + break; + default: + return rgnPART; + } + boundBox++; + } + if (someIn) + return rgnIN; + return rgnOUT; +} + +#define HasParentRelativeBorder(w) (!(w)->borderIsPixel && \ + HasBorder(w) && \ + (w)->backgroundState == ParentRelative) + + +/* + *----------------------------------------------------------------------- + * RootlessComputeClips -- + * Recompute the clipList, borderClip, exposed and borderExposed + * regions for pParent and its children. Only viewable windows are + * taken into account. + * + * Results: + * None. + * + * Side Effects: + * clipList, borderClip, exposed and borderExposed are altered. + * A VisibilityNotify event may be generated on the parent window. + * + *----------------------------------------------------------------------- + */ +static void +RootlessComputeClips (WindowPtr pParent, ScreenPtr pScreen, + RegionPtr universe, VTKind kind, RegionPtr exposed) +{ + int dx, + dy; + RegionRec childUniverse; + register WindowPtr pChild; + int oldVis, newVis; + BoxRec borderSize; + RegionRec childUnion; + Bool overlap; + RegionPtr borderVisible; + Bool resized; + /* + * Figure out the new visibility of this window. + * The extent of the universe should be the same as the extent of + * the borderSize region. If the window is unobscured, this rectangle + * will be completely inside the universe (the universe will cover it + * completely). If the window is completely obscured, none of the + * universe will cover the rectangle. + */ + borderSize.x1 = pParent->drawable.x - wBorderWidth(pParent); + borderSize.y1 = pParent->drawable.y - wBorderWidth(pParent); + dx = (int) pParent->drawable.x + (int) pParent->drawable.width + wBorderWidth(pParent); + if (dx > 32767) + dx = 32767; + borderSize.x2 = dx; + dy = (int) pParent->drawable.y + (int) pParent->drawable.height + wBorderWidth(pParent); + if (dy > 32767) + dy = 32767; + borderSize.y2 = dy; + + oldVis = pParent->visibility; + switch (RegionContainsRect(universe, &borderSize)) + { + case rgnIN: + newVis = VisibilityUnobscured; + break; + case rgnPART: + newVis = VisibilityPartiallyObscured; + { + RegionPtr pBounding; + + if ((pBounding = wBoundingShape (pParent))) + { + switch (RootlessShapedWindowIn (universe, + pBounding, &borderSize, + pParent->drawable.x, + pParent->drawable.y)) + { + case rgnIN: + newVis = VisibilityUnobscured; + break; + case rgnOUT: + newVis = VisibilityFullyObscured; + break; + } + } + } + break; + default: + newVis = VisibilityFullyObscured; + break; + } + + pParent->visibility = newVis; + if (oldVis != newVis && + ((pParent->eventMask | wOtherEventMasks(pParent)) & VisibilityChangeMask)) + SendVisibilityNotify(pParent); + + dx = pParent->drawable.x - pParent->valdata->before.oldAbsCorner.x; + dy = pParent->drawable.y - pParent->valdata->before.oldAbsCorner.y; + + /* + * avoid computations when dealing with simple operations + */ + + switch (kind) { + case VTMap: + case VTStack: + case VTUnmap: + break; + case VTMove: + if ((oldVis == newVis) && + ((oldVis == VisibilityFullyObscured) || + (oldVis == VisibilityUnobscured))) + { + pChild = pParent; + while (1) + { + if (pChild->viewable) + { + if (pChild->visibility != VisibilityFullyObscured) + { + RegionTranslate(&pChild->borderClip, + dx, dy); + RegionTranslate(&pChild->clipList, + dx, dy); + pChild->drawable.serialNumber = NEXT_SERIAL_NUMBER; + if (pScreen->ClipNotify) + (* pScreen->ClipNotify) (pChild, dx, dy); + + } + if (pChild->valdata) + { + RegionNull(&pChild->valdata->after.borderExposed); + if (HasParentRelativeBorder(pChild)) + { + RegionSubtract(&pChild->valdata->after.borderExposed, + &pChild->borderClip, + &pChild->winSize); + } + RegionNull(&pChild->valdata->after.exposed); + } + if (pChild->firstChild) + { + pChild = pChild->firstChild; + continue; + } + } + while (!pChild->nextSib && (pChild != pParent)) + pChild = pChild->parent; + if (pChild == pParent) + break; + pChild = pChild->nextSib; + } + return; + } + /* fall through */ + default: + /* + * To calculate exposures correctly, we have to translate the old + * borderClip and clipList regions to the window's new location so there + * is a correspondence between pieces of the new and old clipping regions. + */ + if (dx || dy) + { + /* + * We translate the old clipList because that will be exposed or copied + * if gravity is right. + */ + RegionTranslate(&pParent->borderClip, dx, dy); + RegionTranslate(&pParent->clipList, dx, dy); + } + break; + case VTBroken: + RegionEmpty(&pParent->borderClip); + RegionEmpty(&pParent->clipList); + break; + } + + borderVisible = pParent->valdata->before.borderVisible; + resized = pParent->valdata->before.resized; + RegionNull(&pParent->valdata->after.borderExposed); + RegionNull(&pParent->valdata->after.exposed); + + /* + * Since the borderClip must not be clipped by the children, we do + * the border exposure first... + * + * 'universe' is the window's borderClip. To figure the exposures, remove + * the area that used to be exposed from the new. + * This leaves a region of pieces that weren't exposed before. + */ + + if (HasBorder (pParent)) + { + if (borderVisible) + { + /* + * when the border changes shape, the old visible portions + * of the border will be saved by DIX in borderVisible -- + * use that region and destroy it + */ + RegionSubtract(exposed, universe, borderVisible); + RegionDestroy(borderVisible); + } + else + { + RegionSubtract(exposed, universe, &pParent->borderClip); + } + if (HasParentRelativeBorder(pParent) && (dx || dy)) { + RegionSubtract(&pParent->valdata->after.borderExposed, + universe, + &pParent->winSize); + } else { + RegionSubtract(&pParent->valdata->after.borderExposed, + exposed, &pParent->winSize); + } + + RegionCopy(&pParent->borderClip, universe); + + /* + * To get the right clipList for the parent, and to make doubly sure + * that no child overlaps the parent's border, we remove the parent's + * border from the universe before proceeding. + */ + + RegionIntersect(universe, universe, &pParent->winSize); + } + else + RegionCopy(&pParent->borderClip, universe); + + if ((pChild = pParent->firstChild) && pParent->mapped) + { + RegionNull(&childUniverse); + RegionNull(&childUnion); + if ((pChild->drawable.y < pParent->lastChild->drawable.y) || + ((pChild->drawable.y == pParent->lastChild->drawable.y) && + (pChild->drawable.x < pParent->lastChild->drawable.x))) + { + for (; pChild; pChild = pChild->nextSib) + { + if (pChild->viewable) + RegionAppend(&childUnion, &pChild->borderSize); + } + } + else + { + for (pChild = pParent->lastChild; pChild; pChild = pChild->prevSib) + { + if (pChild->viewable) + RegionAppend(&childUnion, &pChild->borderSize); + } + } + RegionValidate(&childUnion, &overlap); + + for (pChild = pParent->firstChild; + pChild; + pChild = pChild->nextSib) + { + if (pChild->viewable) { + /* + * If the child is viewable, we want to remove its extents + * from the current universe, but we only re-clip it if + * it's been marked. + */ + if (pChild->valdata) { + /* + * Figure out the new universe from the child's + * perspective and recurse. + */ + RegionIntersect(&childUniverse, + universe, + &pChild->borderSize); + RootlessComputeClips (pChild, pScreen, &childUniverse, + kind, exposed); + } + /* + * Once the child has been processed, we remove its extents + * from the current universe, thus denying its space to any + * other sibling. + */ + if (overlap) + RegionSubtract(universe, universe, + &pChild->borderSize); + } + } + if (!overlap) + RegionSubtract(universe, universe, &childUnion); + RegionUninit(&childUnion); + RegionUninit(&childUniverse); + } /* if any children */ + + /* + * 'universe' now contains the new clipList for the parent window. + * + * To figure the exposure of the window we subtract the old clip from the + * new, just as for the border. + */ + + if (oldVis == VisibilityFullyObscured || + oldVis == VisibilityNotViewable) + { + RegionCopy(&pParent->valdata->after.exposed, universe); + } + else if (newVis != VisibilityFullyObscured && + newVis != VisibilityNotViewable) + { + RegionSubtract(&pParent->valdata->after.exposed, + universe, &pParent->clipList); + } + + /* HACK ALERT - copying contents of regions, instead of regions */ + { + RegionRec tmp; + + tmp = pParent->clipList; + pParent->clipList = *universe; + *universe = tmp; + } + +#ifdef NOTDEF + RegionCopy(&pParent->clipList, universe); +#endif + + pParent->drawable.serialNumber = NEXT_SERIAL_NUMBER; + + if (pScreen->ClipNotify) + (* pScreen->ClipNotify) (pParent, dx, dy); +} + +static void +RootlessTreeObscured(WindowPtr pParent) +{ + register WindowPtr pChild; + register int oldVis; + + pChild = pParent; + while (1) + { + if (pChild->viewable) + { + oldVis = pChild->visibility; + if (oldVis != (pChild->visibility = VisibilityFullyObscured) && + ((pChild->eventMask | wOtherEventMasks(pChild)) & VisibilityChangeMask)) + SendVisibilityNotify(pChild); + if (pChild->firstChild) + { + pChild = pChild->firstChild; + continue; + } + } + while (!pChild->nextSib && (pChild != pParent)) + pChild = pChild->parent; + if (pChild == pParent) + break; + pChild = pChild->nextSib; + } +} + +/* + *----------------------------------------------------------------------- + * RootlessMiValidateTree -- + * Recomputes the clip list for pParent and all its inferiors. + * + * Results: + * Always returns 1. + * + * Side Effects: + * The clipList, borderClip, exposed, and borderExposed regions for + * each marked window are altered. + * + * Notes: + * This routine assumes that all affected windows have been marked + * (valdata created) and their winSize and borderSize regions + * adjusted to correspond to their new positions. The borderClip and + * clipList regions should not have been touched. + * + * The top-most level is treated differently from all lower levels + * because pParent is unchanged. For the top level, we merge the + * regions taken up by the marked children back into the clipList + * for pParent, thus forming a region from which the marked children + * can claim their areas. For lower levels, where the old clipList + * and borderClip are invalid, we can't do this and have to do the + * extra operations done in miComputeClips, but this is much faster + * e.g. when only one child has moved... + * + *----------------------------------------------------------------------- + */ +/* + Quartz version: used for validate from root in rootless mode. + We need to make sure top-level windows don't clip each other, + and that top-level windows aren't clipped to the root window. +*/ +/*ARGSUSED*/ +// fixme this is ugly +// Xprint/ValTree.c doesn't work, but maybe that method can? +int +RootlessMiValidateTree (WindowPtr pRoot, /* Parent to validate */ + WindowPtr pChild, /* First child of pRoot that was + * affected */ + VTKind kind /* What kind of configuration caused call */) +{ + RegionRec childClip; /* The new borderClip for the current + * child */ + RegionRec exposed; /* For intermediate calculations */ + register ScreenPtr pScreen; + register WindowPtr pWin; + + pScreen = pRoot->drawable.pScreen; + if (pChild == NullWindow) + pChild = pRoot->firstChild; + + RegionNull(&childClip); + RegionNull(&exposed); + + if (RegionBroken(&pRoot->clipList) && + !RegionBroken(&pRoot->borderClip)) + { + // fixme this might not work, but hopefully doesn't happen anyway. + kind = VTBroken; + RegionEmpty(&pRoot->clipList); + ErrorF("ValidateTree: BUSTED!\n"); + } + + /* + * Recursively compute the clips for all children of the root. + * They don't clip against each other or the root itself, so + * childClip is always reset to that child's size. + */ + + for (pWin = pChild; + pWin != NullWindow; + pWin = pWin->nextSib) + { + if (pWin->viewable) { + if (pWin->valdata) { + RegionCopy(&childClip, &pWin->borderSize); + RootlessComputeClips (pWin, pScreen, &childClip, kind, &exposed); + } else if (pWin->visibility == VisibilityNotViewable) { + RootlessTreeObscured(pWin); + } + } else { + if (pWin->valdata) { + RegionEmpty(&pWin->clipList); + if (pScreen->ClipNotify) + (* pScreen->ClipNotify) (pWin, 0, 0); + RegionEmpty(&pWin->borderClip); + pWin->valdata = NULL; + } + } + } + + RegionUninit(&childClip); + + /* The root is never clipped by its children, so nothing on the root + is ever exposed by moving or mapping its children. */ + RegionNull(&pRoot->valdata->after.exposed); + RegionNull(&pRoot->valdata->after.borderExposed); + + return 1; +} diff --git a/miext/rootless/rootlessWindow.c b/miext/rootless/rootlessWindow.c new file mode 100644 index 0000000..c4a32aa --- /dev/null +++ b/miext/rootless/rootlessWindow.c @@ -0,0 +1,1637 @@ +/* + * Rootless window management + */ +/* + * Copyright (c) 2001 Greg Parker. All Rights Reserved. + * Copyright (c) 2002-2004 Torrey T. Lyons. All Rights Reserved. + * Copyright (c) 2002 Apple Computer, Inc. All rights reserved. + * + * 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 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 ABOVE LISTED COPYRIGHT HOLDER(S) 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. + * + * Except as contained in this notice, the name(s) of the above copyright + * holders shall not be used in advertising or otherwise to promote the sale, + * use or other dealings in this Software without prior written authorization. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <stddef.h> /* For NULL */ +#include <limits.h> /* For CHAR_BIT */ +#include <assert.h> +#include <X11/Xatom.h> +#ifdef __APPLE__ +#include <Xplugin.h> +#include "mi.h" +#include "pixmapstr.h" +#include "windowstr.h" +//#include <X11/extensions/applewm.h> +extern int darwinMainScreenX, darwinMainScreenY; +extern Bool no_configure_window; +#endif +#include "fb.h" + +#include "rootlessCommon.h" +#include "rootlessWindow.h" + +#define SCREEN_TO_GLOBAL_X \ + (pScreen->x + rootlessGlobalOffsetX) +#define SCREEN_TO_GLOBAL_Y \ + (pScreen->y + rootlessGlobalOffsetY) + +#define DEFINE_ATOM_HELPER(func,atom_name) \ + static Atom func (void) { \ + static unsigned int generation = 0; \ + static Atom atom; \ + if (generation != serverGeneration) { \ + generation = serverGeneration; \ + atom = MakeAtom (atom_name, strlen (atom_name), TRUE); \ + } \ + return atom; \ + } + +DEFINE_ATOM_HELPER (xa_native_window_id, "_NATIVE_WINDOW_ID") + +static Bool windows_hidden; +// TODO - abstract xp functions + +#ifdef __APPLE__ + +// XXX: identical to x_cvt_vptr_to_uint ? +#define MAKE_WINDOW_ID(x) ((xp_window_id)((size_t)(x))) + +void +RootlessNativeWindowStateChanged (WindowPtr pWin, unsigned int state) +{ + RootlessWindowRec *winRec; + + if (pWin == NULL) return; + + winRec = WINREC (pWin); + if (winRec == NULL) return; + + winRec->is_offscreen = ((state & XP_WINDOW_STATE_OFFSCREEN) != 0); + winRec->is_obscured = ((state & XP_WINDOW_STATE_OBSCURED) != 0); + pWin->rootlessUnhittable = winRec->is_offscreen; +} + +void RootlessNativeWindowMoved (WindowPtr pWin) { + xp_box bounds; + int sx, sy, err; + XID vlist[2]; + Mask mask; + ClientPtr pClient; + RootlessWindowRec *winRec; + + winRec = WINREC(pWin); + + if (xp_get_window_bounds (MAKE_WINDOW_ID(winRec->wid), &bounds) != Success) return; + + sx = pWin->drawable.pScreen->x + darwinMainScreenX; + sy = pWin->drawable.pScreen->y + darwinMainScreenY; + + /* Fake up a ConfigureWindow packet to resize the window to the current bounds. */ + vlist[0] = (INT16) bounds.x1 - sx; + vlist[1] = (INT16) bounds.y1 - sy; + mask = CWX | CWY; + + /* pretend we're the owner of the window! */ + err = dixLookupClient(&pClient, pWin->drawable.id, serverClient, DixUnknownAccess); + if(err != Success) { + ErrorF("RootlessNativeWindowMoved(): Failed to lookup window: 0x%x\n", (unsigned int)pWin->drawable.id); + return; + } + + /* Don't want to do anything to the physical window (avoids + notification-response feedback loops) */ + + no_configure_window = TRUE; + ConfigureWindow (pWin, mask, vlist, pClient); + no_configure_window = FALSE; +} + +#endif /* __APPLE__ */ + +/* + * RootlessCreateWindow + * For now, don't create a physical window until either the window is + * realized, or we really need it (e.g. to attach VRAM surfaces to). + * Do reset the window size so it's not clipped by the root window. + */ +Bool +RootlessCreateWindow(WindowPtr pWin) +{ + Bool result; + RegionRec saveRoot; + + SETWINREC(pWin, NULL); + dixSetPrivate(&pWin->devPrivates, rootlessWindowOldPixmapPrivateKey, NULL); + + SCREEN_UNWRAP(pWin->drawable.pScreen, CreateWindow); + + if (!IsRoot(pWin)) { + /* win/border size set by DIX, not by wrapped CreateWindow, so + correct it here. Don't HUGE_ROOT when pWin is the root! */ + + HUGE_ROOT(pWin); + SetWinSize(pWin); + SetBorderSize(pWin); + } + + result = pWin->drawable.pScreen->CreateWindow(pWin); + + if (pWin->parent) { + NORMAL_ROOT(pWin); + } + + SCREEN_WRAP(pWin->drawable.pScreen, CreateWindow); + + return result; +} + + +/* + * RootlessDestroyFrame + * Destroy the physical window associated with the given window. + */ +static void +RootlessDestroyFrame(WindowPtr pWin, RootlessWindowPtr winRec) +{ + SCREENREC(pWin->drawable.pScreen)->imp->DestroyFrame(winRec->wid); + free(winRec); + SETWINREC(pWin, NULL); +} + + +/* + * RootlessDestroyWindow + * Destroy the physical window associated with the given window. + */ +Bool +RootlessDestroyWindow(WindowPtr pWin) +{ + RootlessWindowRec *winRec = WINREC(pWin); + Bool result; + + if (winRec != NULL) { + RootlessDestroyFrame(pWin, winRec); + } + + SCREEN_UNWRAP(pWin->drawable.pScreen, DestroyWindow); + result = pWin->drawable.pScreen->DestroyWindow(pWin); + SCREEN_WRAP(pWin->drawable.pScreen, DestroyWindow); + + return result; +} + + + +static Bool +RootlessGetShape(WindowPtr pWin, RegionPtr pShape) +{ + if (wBoundingShape(pWin) == NULL) + return FALSE; + + /* wBoundingShape is relative to *inner* origin of window. + Translate by borderWidth to get the outside-relative position. */ + + RegionNull(pShape); + RegionCopy(pShape, wBoundingShape(pWin)); + RegionTranslate(pShape, pWin->borderWidth, pWin->borderWidth); + + return TRUE; +} + + +/* + * RootlessReshapeFrame + * Set the frame shape. + */ +static void RootlessReshapeFrame(WindowPtr pWin) +{ + RootlessWindowRec *winRec = WINREC(pWin); + RegionRec newShape; + RegionPtr pShape; + + // If the window is not yet framed, do nothing + if (winRec == NULL) + return; + + if (IsRoot(pWin)) + return; + + RootlessStopDrawing(pWin, FALSE); + + pShape = RootlessGetShape(pWin, &newShape) ? &newShape : NULL; + +#ifdef ROOTLESSDEBUG + RL_DEBUG_MSG("reshaping..."); + if (pShape != NULL) { + RL_DEBUG_MSG("numrects %d, extents %d %d %d %d ", + RegionNumRects(&newShape), + newShape.extents.x1, newShape.extents.y1, + newShape.extents.x2, newShape.extents.y2); + } else { + RL_DEBUG_MSG("no shape "); + } +#endif + + SCREENREC(pWin->drawable.pScreen)->imp->ReshapeFrame(winRec->wid, pShape); + + if (pShape != NULL) + RegionUninit(&newShape); +} + + +/* + * RootlessSetShape + * Shape is usually set before a window is mapped and the window will + * not have a frame associated with it. In this case, the frame will be + * shaped when the window is framed. + */ +void +RootlessSetShape(WindowPtr pWin, int kind) +{ + ScreenPtr pScreen = pWin->drawable.pScreen; + + SCREEN_UNWRAP(pScreen, SetShape); + pScreen->SetShape(pWin, kind); + SCREEN_WRAP(pScreen, SetShape); + + RootlessReshapeFrame(pWin); +} + + + +/* Disallow ParentRelative background on top-level windows + because the root window doesn't really have the right background. + */ +Bool +RootlessChangeWindowAttributes(WindowPtr pWin, unsigned long vmask) +{ + Bool result; + ScreenPtr pScreen = pWin->drawable.pScreen; + + RL_DEBUG_MSG("change window attributes start "); + + SCREEN_UNWRAP(pScreen, ChangeWindowAttributes); + result = pScreen->ChangeWindowAttributes(pWin, vmask); + SCREEN_WRAP(pScreen, ChangeWindowAttributes); + + if (WINREC(pWin)) { + // disallow ParentRelative background state + if (pWin->backgroundState == ParentRelative) { + XID pixel = 0; + ChangeWindowAttributes(pWin, CWBackPixel, &pixel, serverClient); + } + } + + RL_DEBUG_MSG("change window attributes end\n"); + return result; +} + + +/* + * RootlessPositionWindow + * This is a hook for when DIX moves or resizes a window. + * Update the frame position now although the physical window is moved + * in RootlessMoveWindow. (x, y) are *inside* position. After this, + * mi and fb are expecting the pixmap to be at the new location. + */ +Bool +RootlessPositionWindow(WindowPtr pWin, int x, int y) +{ + ScreenPtr pScreen = pWin->drawable.pScreen; + RootlessWindowRec *winRec = WINREC(pWin); + Bool result; + + RL_DEBUG_MSG("positionwindow start (win 0x%x @ %i, %i)\n", pWin, x, y); + + if (winRec) { + if (winRec->is_drawing) { + // Reset frame's pixmap and move it to the new position. + int bw = wBorderWidth(pWin); + + winRec->pixmap->devPrivate.ptr = winRec->pixelData; + SetPixmapBaseToScreen(winRec->pixmap, x - bw, y - bw); + } + } + + SCREEN_UNWRAP(pScreen, PositionWindow); + result = pScreen->PositionWindow(pWin, x, y); + SCREEN_WRAP(pScreen, PositionWindow); + + RL_DEBUG_MSG("positionwindow end\n"); + return result; +} + + +/* + * RootlessInitializeFrame + * Initialize some basic attributes of the frame. Note that winRec + * may already have valid data in it, so don't overwrite anything + * valuable. + */ +static void +RootlessInitializeFrame(WindowPtr pWin, RootlessWindowRec *winRec) +{ + DrawablePtr d = &pWin->drawable; + int bw = wBorderWidth(pWin); + + winRec->win = pWin; + + winRec->x = d->x - bw; + winRec->y = d->y - bw; + winRec->width = d->width + 2*bw; + winRec->height = d->height + 2*bw; + winRec->borderWidth = bw; +} + +/* + * RootlessEnsureFrame + * Make sure the given window is framed. If the window doesn't have a + * physical window associated with it, attempt to create one. If that + * is unsuccessful, return NULL. + */ +static RootlessWindowRec * +RootlessEnsureFrame(WindowPtr pWin) +{ + ScreenPtr pScreen = pWin->drawable.pScreen; + RootlessWindowRec *winRec; + RegionRec shape; + RegionPtr pShape = NULL; + + if (WINREC(pWin) != NULL) + return WINREC(pWin); + + if (!IsTopLevel(pWin) && !IsRoot(pWin)) + return NULL; + + if (pWin->drawable.class != InputOutput) + return NULL; + + winRec = malloc(sizeof(RootlessWindowRec)); + + if (!winRec) + return NULL; + + RootlessInitializeFrame(pWin, winRec); + + winRec->is_drawing = FALSE; + winRec->is_reorder_pending = FALSE; + winRec->pixmap = NULL; + winRec->wid = NULL; + winRec->level = 0; + + SETWINREC(pWin, winRec); + + // Set the frame's shape if the window is shaped + if (RootlessGetShape(pWin, &shape)) + pShape = &shape; + + RL_DEBUG_MSG("creating frame "); + + if (!SCREENREC(pScreen)->imp->CreateFrame(winRec, pScreen, + winRec->x + SCREEN_TO_GLOBAL_X, + winRec->y + SCREEN_TO_GLOBAL_Y, + pShape)) + { + RL_DEBUG_MSG("implementation failed to create frame!\n"); + free(winRec); + SETWINREC(pWin, NULL); + return NULL; + } + + if (pWin->drawable.depth == 8) + RootlessFlushWindowColormap(pWin); + + if (pShape != NULL) + RegionUninit(&shape); + + return winRec; +} + + +/* + * RootlessRealizeWindow + * The frame is usually created here and not in CreateWindow so that + * windows do not eat memory until they are realized. + */ +Bool +RootlessRealizeWindow(WindowPtr pWin) +{ + Bool result; + RegionRec saveRoot; + ScreenPtr pScreen = pWin->drawable.pScreen; + + RL_DEBUG_MSG("realizewindow start (win 0x%x) ", pWin); + + if ((IsTopLevel(pWin) && pWin->drawable.class == InputOutput)) { + RootlessWindowRec *winRec; + + winRec = RootlessEnsureFrame(pWin); + if (winRec == NULL) + return FALSE; + + winRec->is_reorder_pending = TRUE; + + RL_DEBUG_MSG("Top level window "); + + // Disallow ParentRelative background state on top-level windows. + // This might have been set before the window was mapped. + if (pWin->backgroundState == ParentRelative) { + XID pixel = 0; + ChangeWindowAttributes(pWin, CWBackPixel, &pixel, serverClient); + } + } + + if (!IsRoot(pWin)) HUGE_ROOT(pWin); + SCREEN_UNWRAP(pScreen, RealizeWindow); + result = pScreen->RealizeWindow(pWin); + SCREEN_WRAP(pScreen, RealizeWindow); + if (!IsRoot(pWin)) NORMAL_ROOT(pWin); + + RL_DEBUG_MSG("realizewindow end\n"); + return result; +} + + +/* + * RootlessFrameForWindow + * Returns the frame ID for the physical window displaying the given window. + * If CREATE is true and the window has no frame, attempt to create one. + */ +RootlessFrameID +RootlessFrameForWindow(WindowPtr pWin, Bool create) +{ + WindowPtr pTopWin; + RootlessWindowRec *winRec; + + pTopWin = TopLevelParent(pWin); + if (pTopWin == NULL) + return NULL; + + winRec = WINREC(pTopWin); + + if (winRec == NULL && create && pWin->drawable.class == InputOutput) { + winRec = RootlessEnsureFrame(pTopWin); + } + + if (winRec == NULL) + return NULL; + + return winRec->wid; +} + + +/* + * RootlessUnrealizeWindow + * Unmap the physical window. + */ +Bool +RootlessUnrealizeWindow(WindowPtr pWin) +{ + ScreenPtr pScreen = pWin->drawable.pScreen; + RootlessWindowRec *winRec = WINREC(pWin); + Bool result; + + RL_DEBUG_MSG("unrealizewindow start "); + + if (winRec) { + RootlessStopDrawing(pWin, FALSE); + + SCREENREC(pScreen)->imp->UnmapFrame(winRec->wid); + + winRec->is_reorder_pending = FALSE; + } + + SCREEN_UNWRAP(pScreen, UnrealizeWindow); + result = pScreen->UnrealizeWindow(pWin); + SCREEN_WRAP(pScreen, UnrealizeWindow); + + RL_DEBUG_MSG("unrealizewindow end\n"); + return result; +} + + +/* + * RootlessReorderWindow + * Reorder the frame associated with the given window so that it's + * physically above the window below it in the X stacking order. + */ +void +RootlessReorderWindow(WindowPtr pWin) +{ + RootlessWindowRec *winRec = WINREC(pWin); + + if (pWin->realized && winRec != NULL && !winRec->is_reorder_pending && !windows_hidden) { + WindowPtr newPrevW; + RootlessWindowRec *newPrev; + RootlessFrameID newPrevID; + ScreenPtr pScreen = pWin->drawable.pScreen; + + /* Check if the implementation wants the frame to not be reordered + even though the X11 window is restacked. This can be useful if + frames are ordered-in with animation so that the reordering is not + done until the animation is complete. */ + if (SCREENREC(pScreen)->imp->DoReorderWindow) { + if (!SCREENREC(pScreen)->imp->DoReorderWindow(winRec)) + return; + } + + RootlessStopDrawing(pWin, FALSE); + + /* Find the next window above this one that has a mapped frame. + * Only include cases where the windows are in the same category of + * hittability to ensure offscreen windows dont get restacked + * relative to onscreen ones (but that the offscreen ones maintain + * their stacking order if they are explicitly asked to Reorder + */ + + newPrevW = pWin->prevSib; + while (newPrevW && (WINREC(newPrevW) == NULL || !newPrevW->realized || newPrevW->rootlessUnhittable != pWin->rootlessUnhittable)) + newPrevW = newPrevW->prevSib; + + newPrev = newPrevW != NULL ? WINREC(newPrevW) : NULL; + newPrevID = newPrev != NULL ? newPrev->wid : 0; + + /* If it exists, reorder the frame above us first. */ + + if (newPrev && newPrev->is_reorder_pending) { + newPrev->is_reorder_pending = FALSE; + RootlessReorderWindow(newPrevW); + } + + SCREENREC(pScreen)->imp->RestackFrame(winRec->wid, newPrevID); + } +} + + +/* + * RootlessRestackWindow + * This is a hook for when DIX changes the window stacking order. + * The window has already been inserted into its new position in the + * DIX window stack. We need to change the order of the physical + * window to match. + */ +void +RootlessRestackWindow(WindowPtr pWin, WindowPtr pOldNextSib) +{ + RegionRec saveRoot; + RootlessWindowRec *winRec = WINREC(pWin); + ScreenPtr pScreen = pWin->drawable.pScreen; + + RL_DEBUG_MSG("restackwindow start "); + if (winRec) + RL_DEBUG_MSG("restack top level \n"); + + HUGE_ROOT(pWin); + SCREEN_UNWRAP(pScreen, RestackWindow); + + if (pScreen->RestackWindow) + pScreen->RestackWindow(pWin, pOldNextSib); + + SCREEN_WRAP(pScreen, RestackWindow); + NORMAL_ROOT(pWin); + + if (winRec && pWin->viewable) { + RootlessReorderWindow(pWin); + } + + RL_DEBUG_MSG("restackwindow end\n"); +} + +/* + * Specialized window copy procedures + */ + +// Globals needed during window resize and move. +static pointer gResizeDeathBits = NULL; +static int gResizeDeathCount = 0; +static PixmapPtr gResizeDeathPix[2] = {NULL, NULL}; +static BoxRec gResizeDeathBounds[2]; +static CopyWindowProcPtr gResizeOldCopyWindowProc = NULL; + +/* + * RootlessNoCopyWindow + * CopyWindow() that doesn't do anything. For MoveWindow() of + * top-level windows. + */ +static void +RootlessNoCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, + RegionPtr prgnSrc) +{ + // some code expects the region to be translated + int dx = ptOldOrg.x - pWin->drawable.x; + int dy = ptOldOrg.y - pWin->drawable.y; + + RL_DEBUG_MSG("ROOTLESSNOCOPYWINDOW "); + + RegionTranslate(prgnSrc, -dx, -dy); +} + + +/* + * RootlessResizeCopyWindow + * CopyWindow used during ResizeWindow for gravity moves. Based on + * fbCopyWindow. The original always draws on the root pixmap, which + * we don't have. Instead, draw on the parent window's pixmap. + * Resize version: the old location's pixels are in gResizeCopyWindowSource. + */ +static void +RootlessResizeCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, + RegionPtr prgnSrc) +{ + ScreenPtr pScreen = pWin->drawable.pScreen; + RegionRec rgnDst; + int dx, dy; + + RL_DEBUG_MSG("resizecopywindowFB start (win 0x%x) ", pWin); + + /* Don't unwrap pScreen->CopyWindow. + The bogus rewrap with RootlessCopyWindow causes a crash if + CopyWindow is called again during the same resize. */ + + if (gResizeDeathCount == 0) + return; + + RootlessStartDrawing(pWin); + + dx = ptOldOrg.x - pWin->drawable.x; + dy = ptOldOrg.y - pWin->drawable.y; + RegionTranslate(prgnSrc, -dx, -dy); + RegionNull(&rgnDst); + RegionIntersect(&rgnDst, &pWin->borderClip, prgnSrc); + + if (gResizeDeathCount == 1) { + /* Simple case, we only have a single source pixmap. */ + + fbCopyRegion(&gResizeDeathPix[0]->drawable, + &pScreen->GetWindowPixmap(pWin)->drawable, 0, + &rgnDst, dx, dy, fbCopyWindowProc, 0, 0); + } + else { + int i; + RegionRec clip, clipped; + + /* More complex case, N source pixmaps (usually two). So we + intersect the destination with each source and copy those bits. */ + + for (i = 0; i < gResizeDeathCount; i++) { + RegionInit(&clip, gResizeDeathBounds + 0, 1); + RegionNull(&clipped); + RegionIntersect(&rgnDst, &clip, &clipped); + + fbCopyRegion(&gResizeDeathPix[i]->drawable, + &pScreen->GetWindowPixmap(pWin)->drawable, 0, + &clipped, dx, dy, fbCopyWindowProc, 0, 0); + + RegionUninit(&clipped); + RegionUninit(&clip); + } + } + + /* Don't update - resize will update everything */ + RegionUninit(&rgnDst); + + fbValidateDrawable(&pWin->drawable); + + RL_DEBUG_MSG("resizecopywindowFB end\n"); +} + + +/* + * RootlessCopyWindow + * Update *new* location of window. Old location is redrawn with + * miPaintWindow. Cloned from fbCopyWindow. + * The original always draws on the root pixmap, which we don't have. + * Instead, draw on the parent window's pixmap. + */ +void +RootlessCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc) +{ + ScreenPtr pScreen = pWin->drawable.pScreen; + RegionRec rgnDst; + int dx, dy; + BoxPtr extents; + int area; + + RL_DEBUG_MSG("copywindowFB start (win 0x%x) ", pWin); + + SCREEN_UNWRAP(pScreen, CopyWindow); + + dx = ptOldOrg.x - pWin->drawable.x; + dy = ptOldOrg.y - pWin->drawable.y; + RegionTranslate(prgnSrc, -dx, -dy); + + RegionNull(&rgnDst); + RegionIntersect(&rgnDst, &pWin->borderClip, prgnSrc); + + extents = RegionExtents(&rgnDst); + area = (extents->x2 - extents->x1) * (extents->y2 - extents->y1); + + /* If the area exceeds threshold, use the implementation's + accelerated version. */ + if (area > rootless_CopyWindow_threshold && + SCREENREC(pScreen)->imp->CopyWindow) + { + RootlessWindowRec *winRec; + WindowPtr top; + + top = TopLevelParent(pWin); + if (top == NULL) { + RL_DEBUG_MSG("no parent\n"); + goto out; + } + + winRec = WINREC(top); + if (winRec == NULL) { + RL_DEBUG_MSG("not framed\n"); + goto out; + } + + /* Move region to window local coords */ + RegionTranslate(&rgnDst, -winRec->x, -winRec->y); + + RootlessStopDrawing(pWin, FALSE); + + SCREENREC(pScreen)->imp->CopyWindow(winRec->wid, + RegionNumRects(&rgnDst), + RegionRects(&rgnDst), + dx, dy); + } + else { + RootlessStartDrawing(pWin); + + fbCopyRegion((DrawablePtr) pWin, (DrawablePtr) pWin, + 0, &rgnDst, dx, dy, fbCopyWindowProc, 0, 0); + + /* prgnSrc has been translated to dst position */ + RootlessDamageRegion(pWin, prgnSrc); + } + +out: + RegionUninit(&rgnDst); + fbValidateDrawable(&pWin->drawable); + + SCREEN_WRAP(pScreen, CopyWindow); + + RL_DEBUG_MSG("copywindowFB end\n"); +} + + +/* + * Window resize procedures + */ + +enum { + WIDTH_SMALLER = 1, + HEIGHT_SMALLER = 2, +}; + + +/* + * ResizeWeighting + * Choose gravity to avoid local copies. Do that by looking for + * a corner that doesn't move _relative to the screen_. + */ +static inline unsigned int +ResizeWeighting(int oldX1, int oldY1, int oldX2, int oldY2, int oldBW, + int newX1, int newY1, int newX2, int newY2, int newBW) +{ +#ifdef ROOTLESS_RESIZE_GRAVITY + if (newBW != oldBW) + return RL_GRAVITY_NONE; + + if (newX1 == oldX1 && newY1 == oldY1) + return RL_GRAVITY_NORTH_WEST; + else if (newX1 == oldX1 && newY2 == oldY2) + return RL_GRAVITY_SOUTH_WEST; + else if (newX2 == oldX2 && newY2 == oldY2) + return RL_GRAVITY_SOUTH_EAST; + else if (newX2 == oldX2 && newY1 == oldY1) + return RL_GRAVITY_NORTH_EAST; + else + return RL_GRAVITY_NONE; +#else + return RL_GRAVITY_NONE; +#endif +} + + +/* + * StartFrameResize + * Prepare to resize a top-level window. The old window's pixels are + * saved and the implementation is told to change the window size. + * (x,y,w,h) is outer frame of window (outside border) + */ +static Bool +StartFrameResize(WindowPtr pWin, Bool gravity, + int oldX, int oldY, int oldW, int oldH, int oldBW, + int newX, int newY, int newW, int newH, int newBW) +{ + ScreenPtr pScreen = pWin->drawable.pScreen; + RootlessWindowRec *winRec = WINREC(pWin); + Bool need_window_source = FALSE, resize_after = FALSE; + + BoxRec rect; + int oldX2, newX2; + int oldY2, newY2; + unsigned int weight; + + oldX2 = oldX + oldW, newX2 = newX + newW; + oldY2 = oldY + oldH, newY2 = newY + newH; + + /* Decide which resize weighting to use */ + weight = ResizeWeighting(oldX, oldY, oldW, oldH, oldBW, + newX, newY, newW, newH, newBW); + + /* Compute intersection between old and new rects */ + rect.x1 = max(oldX, newX); + rect.y1 = max(oldY, newY); + rect.x2 = min(oldX2, newX2); + rect.y2 = min(oldY2, newY2); + + RL_DEBUG_MSG("RESIZE TOPLEVEL WINDOW with gravity %i ", gravity); + RL_DEBUG_MSG("%d %d %d %d %d %d %d %d %d %d\n", + oldX, oldY, oldW, oldH, oldBW, + newX, newY, newW, newH, newBW); + + RootlessRedisplay(pWin); + + /* If gravity is true, then we need to have a way of recovering all + the original bits in the window for when X rearranges the contents + based on the various gravity settings. The obvious way is to just + snapshot the entire backing store before resizing it, but that + it slow on large windows. + + So the optimization here is to use the implementation's resize + weighting options (if available) to allow us to reason about what + is left in the backing store after the resize. We can then only + copy what won't be there after the resize, and do a two-stage copy + operation. + + Most of these optimizations are only applied when the top-left + corner of the window is fixed, since that's the common case. They + could probably be extended with some thought. */ + + gResizeDeathCount = 0; + + if (gravity && weight == RL_GRAVITY_NORTH_WEST) { + unsigned int code = 0; + + /* Top left corner is anchored. We never need to copy the + entire window. */ + + need_window_source = TRUE; + + /* These comparisons were chosen to avoid setting bits when the sizes + are the same. (So the fastest case automatically gets taken when + dimensions are unchanging.) */ + + if (newW < oldW) + code |= WIDTH_SMALLER; + if (newH < oldH) + code |= HEIGHT_SMALLER; + + if (((code ^ (code >> 1)) & 1) == 0) { + /* Both dimensions are either getting larger, or both + are getting smaller. No need to copy anything. */ + + if (code == (WIDTH_SMALLER | HEIGHT_SMALLER)) { + /* Since the window is getting smaller, we can do gravity + repair on it with it's current size, then resize it + afterwards. */ + + resize_after = TRUE; + } + + gResizeDeathCount = 1; + } + else { + unsigned int copy_rowbytes, Bpp; + unsigned int copy_rect_width, copy_rect_height; + BoxRec copy_rect; + + /* We can get away with a partial copy. 'rect' is the + intersection between old and new bounds, so copy + everything to the right of or below the intersection. */ + + RootlessStartDrawing(pWin); + + if (code == WIDTH_SMALLER) { + copy_rect.x1 = rect.x2; + copy_rect.y1 = rect.y1; + copy_rect.x2 = oldX2; + copy_rect.y2 = oldY2; + } + else if (code == HEIGHT_SMALLER) { + copy_rect.x1 = rect.x1; + copy_rect.y1 = rect.y2; + copy_rect.x2 = oldX2; + copy_rect.y2 = oldY2; + } + else + OsAbort(); + + Bpp = winRec->win->drawable.bitsPerPixel / 8; + copy_rect_width = copy_rect.x2 - copy_rect.x1; + copy_rect_height = copy_rect.y2 - copy_rect.y1; + copy_rowbytes = ((copy_rect_width * Bpp) + 31) & ~31; + gResizeDeathBits = malloc(copy_rowbytes + * copy_rect_height); + + if (copy_rect_width * copy_rect_height > + rootless_CopyBytes_threshold && + SCREENREC(pScreen)->imp->CopyBytes) + { + SCREENREC(pScreen)->imp->CopyBytes( + copy_rect_width * Bpp, copy_rect_height, + ((char *) winRec->pixelData) + + ((copy_rect.y1 - oldY) * winRec->bytesPerRow) + + (copy_rect.x1 - oldX) * Bpp, winRec->bytesPerRow, + gResizeDeathBits, copy_rowbytes); + } else { + fbBlt((FbBits *) (winRec->pixelData + + ((copy_rect.y1 - oldY) * winRec->bytesPerRow) + + (copy_rect.x1 - oldX) * Bpp), + winRec->bytesPerRow / sizeof(FbBits), 0, + (FbBits *) gResizeDeathBits, + copy_rowbytes / sizeof(FbBits), 0, + copy_rect_width * Bpp, copy_rect_height, + GXcopy, FB_ALLONES, Bpp, 0, 0); + } + + gResizeDeathBounds[1] = copy_rect; + gResizeDeathPix[1] + = GetScratchPixmapHeader(pScreen, copy_rect_width, + copy_rect_height, + winRec->win->drawable.depth, + winRec->win->drawable.bitsPerPixel, + winRec->bytesPerRow, + (void *) gResizeDeathBits); + + SetPixmapBaseToScreen(gResizeDeathPix[1], + copy_rect.x1, copy_rect.y1); + + gResizeDeathCount = 2; + } + } + else if (gravity) { + /* The general case. Just copy everything. */ + + RootlessStartDrawing(pWin); + + gResizeDeathBits = malloc(winRec->bytesPerRow * winRec->height); + + memcpy(gResizeDeathBits, winRec->pixelData, + winRec->bytesPerRow * winRec->height); + + gResizeDeathBounds[0] = (BoxRec) {oldX, oldY, oldX2, oldY2}; + gResizeDeathPix[0] + = GetScratchPixmapHeader(pScreen, winRec->width, + winRec->height, + winRec->win->drawable.depth, + winRec->win->drawable.bitsPerPixel, + winRec->bytesPerRow, + (void *) gResizeDeathBits); + + SetPixmapBaseToScreen(gResizeDeathPix[0], oldX, oldY); + gResizeDeathCount = 1; + } + + RootlessStopDrawing(pWin, FALSE); + + winRec->x = newX; + winRec->y = newY; + winRec->width = newW; + winRec->height = newH; + winRec->borderWidth = newBW; + + /* Unless both dimensions are getting smaller, Resize the frame + before doing gravity repair */ + + if (!resize_after) { + SCREENREC(pScreen)->imp->ResizeFrame(winRec->wid, pScreen, + newX + SCREEN_TO_GLOBAL_X, + newY + SCREEN_TO_GLOBAL_Y, + newW, newH, weight); + } + + RootlessStartDrawing(pWin); + + /* If necessary, create a source pixmap pointing at the current + window bits. */ + + if (need_window_source) { + gResizeDeathBounds[0] = (BoxRec) {oldX, oldY, oldX2, oldY2}; + gResizeDeathPix[0] + = GetScratchPixmapHeader(pScreen, oldW, oldH, + winRec->win->drawable.depth, + winRec->win->drawable.bitsPerPixel, + winRec->bytesPerRow, winRec->pixelData); + + SetPixmapBaseToScreen(gResizeDeathPix[0], oldX, oldY); + } + + /* Use custom CopyWindow when moving gravity bits around + ResizeWindow assumes the old window contents are in the same + pixmap, but here they're in deathPix instead. */ + + if (gravity) { + gResizeOldCopyWindowProc = pScreen->CopyWindow; + pScreen->CopyWindow = RootlessResizeCopyWindow; + } + + /* If we can't rely on the window server preserving the bits we + need in the position we need, copy the pixels in the + intersection from src to dst. ResizeWindow assumes these pixels + are already present when making gravity adjustments. pWin + currently has new-sized pixmap but is in old position. + + FIXME: border width change! (?) */ + + if (gravity && weight == RL_GRAVITY_NONE) { + PixmapPtr src, dst; + + assert(gResizeDeathCount == 1); + + src = gResizeDeathPix[0]; + dst = pScreen->GetWindowPixmap(pWin); + + RL_DEBUG_MSG("Resize copy rect %d %d %d %d\n", + rect.x1, rect.y1, rect.x2, rect.y2); + + /* rect is the intersection of the old location and new location */ + if (BOX_NOT_EMPTY(rect) && src != NULL && dst != NULL) { + /* The window drawable still has the old frame position, which + means that DST doesn't actually point at the origin of our + physical backing store when adjusted by the drawable.x,y + position. So sneakily adjust it temporarily while copying.. */ + + ((PixmapPtr) dst)->devPrivate.ptr = winRec->pixelData; + SetPixmapBaseToScreen(dst, newX, newY); + + fbCopyWindowProc(&src->drawable, &dst->drawable, NULL, + &rect, 1, 0, 0, FALSE, FALSE, 0, 0); + + ((PixmapPtr) dst)->devPrivate.ptr = winRec->pixelData; + SetPixmapBaseToScreen(dst, oldX, oldY); + } + } + + return resize_after; +} + + +static void +FinishFrameResize(WindowPtr pWin, Bool gravity, int oldX, int oldY, + unsigned int oldW, unsigned int oldH, unsigned int oldBW, + int newX, int newY, unsigned int newW, unsigned int newH, + unsigned int newBW, Bool resize_now) +{ + ScreenPtr pScreen = pWin->drawable.pScreen; + RootlessWindowRec *winRec = WINREC(pWin); + int i; + + RootlessStopDrawing(pWin, FALSE); + + if (resize_now) { + unsigned int weight; + + /* We didn't resize anything earlier, so do it now, now that + we've finished gravitating the bits. */ + + weight = ResizeWeighting(oldX, oldY, oldW, oldH, oldBW, + newX, newY, newW, newH, newBW); + + SCREENREC(pScreen)->imp->ResizeFrame(winRec->wid, pScreen, + newX + SCREEN_TO_GLOBAL_X, + newY + SCREEN_TO_GLOBAL_Y, + newW, newH, weight); + } + + /* Redraw everything. FIXME: there must be times when we don't need + to do this. Perhaps when top-left weighting and no gravity? */ + + RootlessDamageRect(pWin, -newBW, -newBW, newW, newH); + + for (i = 0; i < 2; i++) { + if (gResizeDeathPix[i] != NULL) { + FreeScratchPixmapHeader(gResizeDeathPix[i]); + gResizeDeathPix[i] = NULL; + } + } + + free(gResizeDeathBits); + gResizeDeathBits = NULL; + + if (gravity) { + pScreen->CopyWindow = gResizeOldCopyWindowProc; + } +} + + +/* + * RootlessMoveWindow + * If kind==VTOther, window border is resizing (and borderWidth is + * already changed!!@#$) This case works like window resize, not move. + */ +void +RootlessMoveWindow(WindowPtr pWin, int x, int y, WindowPtr pSib, VTKind kind) +{ + RootlessWindowRec *winRec = WINREC(pWin); + ScreenPtr pScreen = pWin->drawable.pScreen; + CopyWindowProcPtr oldCopyWindowProc = NULL; + int oldX = 0, oldY = 0, newX = 0, newY = 0; + unsigned int oldW = 0, oldH = 0, oldBW = 0; + unsigned int newW = 0, newH = 0, newBW = 0; + Bool resize_after = FALSE; + RegionRec saveRoot; + + RL_DEBUG_MSG("movewindow start \n"); + + if (winRec) { + if (kind == VTMove) { + oldX = winRec->x; + oldY = winRec->y; + RootlessRedisplay(pWin); + RootlessStartDrawing(pWin); + } else { + RL_DEBUG_MSG("movewindow border resizing "); + + oldBW = winRec->borderWidth; + oldX = winRec->x; + oldY = winRec->y; + oldW = winRec->width; + oldH = winRec->height; + + newBW = wBorderWidth(pWin); + newX = x; + newY = y; + newW = pWin->drawable.width + 2*newBW; + newH = pWin->drawable.height + 2*newBW; + + resize_after = StartFrameResize(pWin, FALSE, + oldX, oldY, oldW, oldH, oldBW, + newX, newY, newW, newH, newBW); + } + } + + HUGE_ROOT(pWin); + SCREEN_UNWRAP(pScreen, MoveWindow); + + if (winRec) { + oldCopyWindowProc = pScreen->CopyWindow; + pScreen->CopyWindow = RootlessNoCopyWindow; + } + pScreen->MoveWindow(pWin, x, y, pSib, kind); + if (winRec) { + pScreen->CopyWindow = oldCopyWindowProc; + } + + NORMAL_ROOT(pWin); + SCREEN_WRAP(pScreen, MoveWindow); + + if (winRec) { + if (kind == VTMove) { + winRec->x = x; + winRec->y = y; + RootlessStopDrawing(pWin, FALSE); + SCREENREC(pScreen)->imp->MoveFrame(winRec->wid, pScreen, + x + SCREEN_TO_GLOBAL_X, + y + SCREEN_TO_GLOBAL_Y); + } else { + FinishFrameResize(pWin, FALSE, oldX, oldY, oldW, oldH, oldBW, + newX, newY, newW, newH, newBW, resize_after); + } + } + + RL_DEBUG_MSG("movewindow end\n"); +} + + +/* + * RootlessResizeWindow + * Note: (x, y, w, h) as passed to this procedure don't match the frame + * definition. (x,y) is corner of very outer edge, *outside* border. + * w,h is width and height *inside* border, *ignoring* border width. + * The rect (x, y, w, h) doesn't mean anything. (x, y, w+2*bw, h+2*bw) + * is total rect and (x+bw, y+bw, w, h) is inner rect. + */ +void +RootlessResizeWindow(WindowPtr pWin, int x, int y, + unsigned int w, unsigned int h, WindowPtr pSib) +{ + RootlessWindowRec *winRec = WINREC(pWin); + ScreenPtr pScreen = pWin->drawable.pScreen; + int oldX = 0, oldY = 0, newX = 0, newY = 0; + unsigned int oldW = 0, oldH = 0, oldBW = 0, newW = 0, newH = 0, newBW = 0; + Bool resize_after = FALSE; + RegionRec saveRoot; + + RL_DEBUG_MSG("resizewindow start (win 0x%x) ", pWin); + + if(pWin->parent) { + if (winRec) { + oldBW = winRec->borderWidth; + oldX = winRec->x; + oldY = winRec->y; + oldW = winRec->width; + oldH = winRec->height; + + newBW = oldBW; + newX = x; + newY = y; + newW = w + 2*newBW; + newH = h + 2*newBW; + + resize_after = StartFrameResize(pWin, TRUE, + oldX, oldY, oldW, oldH, oldBW, + newX, newY, newW, newH, newBW); + } + + HUGE_ROOT(pWin); + SCREEN_UNWRAP(pScreen, ResizeWindow); + pScreen->ResizeWindow(pWin, x, y, w, h, pSib); + SCREEN_WRAP(pScreen, ResizeWindow); + NORMAL_ROOT(pWin); + + if (winRec) { + FinishFrameResize(pWin, TRUE, oldX, oldY, oldW, oldH, oldBW, + newX, newY, newW, newH, newBW, resize_after); + } + } else { + /* Special case for resizing the root window */ + BoxRec box; + + pWin->drawable.x = x; + pWin->drawable.y = y; + pWin->drawable.width = w; + pWin->drawable.height = h; + + box.x1 = x; box.y1 = y; + box.x2 = x + w; box.y2 = y + h; + RegionUninit(&pWin->winSize); + RegionInit(&pWin->winSize, &box, 1); + RegionCopy(&pWin->borderSize, &pWin->winSize); + RegionCopy(&pWin->clipList, &pWin->winSize); + RegionCopy(&pWin->borderClip, &pWin->winSize); + + if (winRec) { + SCREENREC(pScreen)->imp->ResizeFrame(winRec->wid, pScreen, + x + SCREEN_TO_GLOBAL_X, + y + SCREEN_TO_GLOBAL_Y, + w, h, RL_GRAVITY_NONE); + } + + miSendExposures(pWin, &pWin->borderClip, + pWin->drawable.x, pWin->drawable.y); + } + + RL_DEBUG_MSG("resizewindow end\n"); +} + + +/* + * RootlessRepositionWindow + * Called by the implementation when a window needs to be repositioned to + * its correct location on the screen. This routine is typically needed + * due to changes in the underlying window system, such as a screen layout + * change. + */ +void +RootlessRepositionWindow(WindowPtr pWin) +{ + RootlessWindowRec *winRec = WINREC(pWin); + ScreenPtr pScreen = pWin->drawable.pScreen; + + if (winRec == NULL) + return; + + RootlessStopDrawing(pWin, FALSE); + SCREENREC(pScreen)->imp->MoveFrame(winRec->wid, pScreen, + winRec->x + SCREEN_TO_GLOBAL_X, + winRec->y + SCREEN_TO_GLOBAL_Y); + + RootlessReorderWindow(pWin); +} + + +/* + * RootlessReparentWindow + * Called after a window has been reparented. Generally windows are not + * framed until they are mapped. However, a window may be framed early by the + * implementation calling RootlessFrameForWindow. (e.g. this could be needed + * to attach a VRAM surface to it.) If the window is subsequently reparented + * by the window manager before being mapped, we need to give the frame to + * the new top-level window. + */ +void +RootlessReparentWindow(WindowPtr pWin, WindowPtr pPriorParent) +{ + ScreenPtr pScreen = pWin->drawable.pScreen; + RootlessWindowRec *winRec = WINREC(pWin); + WindowPtr pTopWin; + + /* Check that window is not top-level now, but used to be. */ + if (IsRoot(pWin) || IsRoot(pWin->parent) + || IsTopLevel(pWin) || winRec == NULL) + { + goto out; + } + + /* If the formerly top-level window has a frame, we want to give the + frame to its new top-level parent. If we can't do that, we'll just + have to jettison it... */ + + pTopWin = TopLevelParent(pWin); + assert(pTopWin != pWin); + + pWin->rootlessUnhittable = FALSE; + + DeleteProperty (serverClient, pWin, xa_native_window_id ()); + + if (WINREC(pTopWin) != NULL) { + /* We're screwed. */ + RootlessDestroyFrame(pWin, winRec); + } else { + if (!pTopWin->realized && pWin->realized) { + SCREENREC(pScreen)->imp->UnmapFrame(winRec->wid); + } + + /* Switch the frame record from one to the other. */ + + SETWINREC(pWin, NULL); + SETWINREC(pTopWin, winRec); + + RootlessInitializeFrame(pTopWin, winRec); + RootlessReshapeFrame(pTopWin); + + SCREENREC(pScreen)->imp->ResizeFrame(winRec->wid, pScreen, + winRec->x + SCREEN_TO_GLOBAL_X, + winRec->y + SCREEN_TO_GLOBAL_Y, + winRec->width, winRec->height, + RL_GRAVITY_NONE); + + if (SCREENREC(pScreen)->imp->SwitchWindow) { + SCREENREC(pScreen)->imp->SwitchWindow(winRec, pWin); + } + + if (pTopWin->realized && !pWin->realized) + winRec->is_reorder_pending = TRUE; + } + +out: + if (SCREENREC(pScreen)->ReparentWindow) { + SCREEN_UNWRAP(pScreen, ReparentWindow); + pScreen->ReparentWindow(pWin, pPriorParent); + SCREEN_WRAP(pScreen, ReparentWindow); + } +} + + +void +RootlessFlushWindowColormap (WindowPtr pWin) +{ + RootlessWindowRec *winRec = WINREC (pWin); + ScreenPtr pScreen = pWin->drawable.pScreen; + + if (winRec == NULL) + return; + + RootlessStopDrawing (pWin, FALSE); + + if (SCREENREC(pScreen)->imp->UpdateColormap) + SCREENREC(pScreen)->imp->UpdateColormap(winRec->wid, pScreen); +} + +/* + * RootlessChangeBorderWidth + * FIXME: untested! + * pWin inside corner stays the same; pWin->drawable.[xy] stays the same + * Frame moves and resizes. + */ +void +RootlessChangeBorderWidth(WindowPtr pWin, unsigned int width) +{ + RegionRec saveRoot; + Bool resize_after = FALSE; + + RL_DEBUG_MSG("change border width "); + + if (width != wBorderWidth(pWin)) { + RootlessWindowRec *winRec = WINREC(pWin); + int oldX = 0, oldY = 0, newX = 0, newY = 0; + unsigned int oldW = 0, oldH = 0, oldBW = 0; + unsigned int newW = 0, newH = 0, newBW = 0; + + if (winRec) { + oldBW = winRec->borderWidth; + oldX = winRec->x; + oldY = winRec->y; + oldW = winRec->width; + oldH = winRec->height; + + newBW = width; + newX = pWin->drawable.x - newBW; + newY = pWin->drawable.y - newBW; + newW = pWin->drawable.width + 2*newBW; + newH = pWin->drawable.height + 2*newBW; + + resize_after = StartFrameResize(pWin, FALSE, + oldX, oldY, oldW, oldH, oldBW, + newX, newY, newW, newH, newBW); + } + + HUGE_ROOT(pWin); + SCREEN_UNWRAP(pWin->drawable.pScreen, ChangeBorderWidth); + pWin->drawable.pScreen->ChangeBorderWidth(pWin, width); + SCREEN_WRAP(pWin->drawable.pScreen, ChangeBorderWidth); + NORMAL_ROOT(pWin); + + if (winRec) { + FinishFrameResize(pWin, FALSE, oldX, oldY, oldW, oldH, oldBW, + newX, newY, newW, newH, newBW, resize_after); + } + } + + RL_DEBUG_MSG("change border width end\n"); +} + +/* + * RootlessOrderAllWindows + * Brings all X11 windows to the top of the window stack + * (i.e in front of Aqua windows) -- called when X11.app is given focus + */ +void +RootlessOrderAllWindows (Bool include_unhitable) +{ + int i; + WindowPtr pWin; + + if (windows_hidden) + return; + + RL_DEBUG_MSG("RootlessOrderAllWindows() "); + for (i = 0; i < screenInfo.numScreens; i++) { + if (screenInfo.screens[i] == NULL) continue; + pWin = screenInfo.screens[i]->root; + if (pWin == NULL) continue; + + for (pWin = pWin->firstChild; pWin != NULL; pWin = pWin->nextSib) { + if (!pWin->realized) continue; + if (RootlessEnsureFrame(pWin) == NULL) continue; + if (!include_unhitable && pWin->rootlessUnhittable) continue; + RootlessReorderWindow (pWin); + } + } + RL_DEBUG_MSG("RootlessOrderAllWindows() done"); +} + +void +RootlessEnableRoot (ScreenPtr pScreen) +{ + WindowPtr pRoot; + pRoot = pScreen->root; + + RootlessEnsureFrame (pRoot); + (*pScreen->ClearToBackground) (pRoot, 0, 0, 0, 0, TRUE); + RootlessReorderWindow (pRoot); +} + +void +RootlessDisableRoot (ScreenPtr pScreen) +{ + WindowPtr pRoot; + RootlessWindowRec *winRec; + + pRoot = pScreen->root; + winRec = WINREC (pRoot); + + if (NULL == winRec) + return; + + RootlessDestroyFrame (pRoot, winRec); + DeleteProperty (serverClient, pRoot, xa_native_window_id ()); +} + +void +RootlessHideAllWindows (void) +{ + int i; + ScreenPtr pScreen; + WindowPtr pWin; + RootlessWindowRec *winRec; + + if (windows_hidden) + return; + + windows_hidden = TRUE; + + for (i = 0; i < screenInfo.numScreens; i++) + { + pScreen = screenInfo.screens[i]; + if (pScreen == NULL) + continue; + pWin = pScreen->root; + if (pWin == NULL) + continue; + + for (pWin = pWin->firstChild; pWin != NULL; pWin = pWin->nextSib) + { + if (!pWin->realized) + continue; + + RootlessStopDrawing (pWin, FALSE); + + winRec = WINREC (pWin); + if (winRec != NULL) + { + if (SCREENREC(pScreen)->imp->HideWindow) + SCREENREC(pScreen)->imp->HideWindow(winRec->wid); + } + } + } +} + +void +RootlessShowAllWindows (void) +{ + int i; + ScreenPtr pScreen; + WindowPtr pWin; + RootlessWindowRec *winRec; + + if (!windows_hidden) + return; + + windows_hidden = FALSE; + + for (i = 0; i < screenInfo.numScreens; i++) + { + pScreen = screenInfo.screens[i]; + if (pScreen == NULL) + continue; + pWin = pScreen->root; + if (pWin == NULL) + continue; + + for (pWin = pWin->firstChild; pWin != NULL; pWin = pWin->nextSib) + { + if (!pWin->realized) + continue; + + winRec = RootlessEnsureFrame (pWin); + if (winRec == NULL) + continue; + + RootlessReorderWindow (pWin); + } + + RootlessScreenExpose (pScreen); + } +} + +/* + * SetPixmapOfAncestors + * Set the Pixmaps on all ParentRelative windows up the ancestor chain. + */ +void +RootlessSetPixmapOfAncestors(WindowPtr pWin) +{ + ScreenPtr pScreen = pWin->drawable.pScreen; + WindowPtr topWin = TopLevelParent(pWin); + RootlessWindowRec *topWinRec = WINREC(topWin); + + while (pWin->backgroundState == ParentRelative) { + if (pWin == topWin) { + // disallow ParentRelative background state on top level + XID pixel = 0; + ChangeWindowAttributes(pWin, CWBackPixel, &pixel, serverClient); + RL_DEBUG_MSG("Cleared ParentRelative on 0x%x.\n", pWin); + break; + } + + pWin = pWin->parent; + pScreen->SetWindowPixmap(pWin, topWinRec->pixmap); + } +} + diff --git a/miext/rootless/rootlessWindow.h b/miext/rootless/rootlessWindow.h new file mode 100644 index 0000000..2b018e0 --- /dev/null +++ b/miext/rootless/rootlessWindow.h @@ -0,0 +1,60 @@ +/* + * Rootless window management + */ +/* + * Copyright (c) 2001 Greg Parker. All Rights Reserved. + * + * 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 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 ABOVE LISTED COPYRIGHT HOLDER(S) 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. + * + * Except as contained in this notice, the name(s) of the above copyright + * holders shall not be used in advertising or otherwise to promote the sale, + * use or other dealings in this Software without prior written authorization. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#ifndef _ROOTLESSWINDOW_H +#define _ROOTLESSWINDOW_H + +#include "rootlessCommon.h" + +Bool RootlessCreateWindow(WindowPtr pWin); +Bool RootlessDestroyWindow(WindowPtr pWin); + +void RootlessSetShape(WindowPtr pWin, int kind); + +Bool RootlessChangeWindowAttributes(WindowPtr pWin, unsigned long vmask); +Bool RootlessPositionWindow(WindowPtr pWin, int x, int y); +Bool RootlessRealizeWindow(WindowPtr pWin); +Bool RootlessUnrealizeWindow(WindowPtr pWin); +void RootlessRestackWindow(WindowPtr pWin, WindowPtr pOldNextSib); +void RootlessCopyWindow(WindowPtr pWin,DDXPointRec ptOldOrg,RegionPtr prgnSrc); +void RootlessMoveWindow(WindowPtr pWin,int x,int y,WindowPtr pSib,VTKind kind); +void RootlessResizeWindow(WindowPtr pWin, int x, int y, + unsigned int w, unsigned int h, WindowPtr pSib); +void RootlessReparentWindow(WindowPtr pWin, WindowPtr pPriorParent); +void RootlessChangeBorderWidth(WindowPtr pWin, unsigned int width); +#ifdef __APPLE__ +void RootlessNativeWindowMoved (WindowPtr pWin); +void RootlessNativeWindowStateChanged (WindowPtr pWin, unsigned int state); +#endif + +#endif |