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IABSD.fr/xenocara/xserver/miext/rootless/rootless.h
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- xserver/miext/rootless/rootless.h
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/* * 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 */