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+/*
+ * $XFree86: xc/programs/Xserver/miext/layer/layerstr.h,v 1.2 2001/06/04 09:45:41 keithp Exp $
+ *
+ * Copyright © 2001 Keith Packard, member of The XFree86 Project, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Keith Packard makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#ifndef _LAYERSTR_H_
+#define _LAYERSTR_H_
+
+#include <X11/X.h>
+#include "scrnintstr.h"
+#include "windowstr.h"
+#include <X11/fonts/font.h>
+#include "dixfontstr.h"
+#include <X11/fonts/fontstruct.h>
+#include "mi.h"
+#include "regionstr.h"
+#include "globals.h"
+#include "gcstruct.h"
+#include "layer.h"
+#ifdef RENDER
+#include "picturestr.h"
+#endif
+
+extern int layerScrPrivateIndex;
+extern int layerGCPrivateIndex;
+extern int layerWinPrivateIndex;
+
+/*
+ * One of these for each possible set of underlying
+ * rendering code. The first kind always points at the
+ * underlying frame buffer code and is created in LayerStartInit
+ * so that LayerNewKind can unwrap the screen and prepare it
+ * for another wrapping sequence.
+ *
+ * The set of functions wrapped here must be at least the union
+ * of all functions wrapped by any rendering layer in use; they're
+ * easy to add, so don't be shy
+ */
+
+typedef struct _LayerKind {
+ int kind; /* kind index */
+
+ CloseScreenProcPtr CloseScreen;
+
+ CreateWindowProcPtr CreateWindow;
+ DestroyWindowProcPtr DestroyWindow;
+ ChangeWindowAttributesProcPtr ChangeWindowAttributes;
+ PaintWindowBackgroundProcPtr PaintWindowBackground;
+ PaintWindowBorderProcPtr PaintWindowBorder;
+ CopyWindowProcPtr CopyWindow;
+
+ CreatePixmapProcPtr CreatePixmap;
+ DestroyPixmapProcPtr DestroyPixmap;
+
+ CreateGCProcPtr CreateGC;
+#ifdef RENDER
+ CompositeProcPtr Composite;
+ GlyphsProcPtr Glyphs;
+ CompositeRectsProcPtr CompositeRects;
+#endif
+} LayerKindRec;
+
+#define LayerWrap(orig,lay,member,func) \
+ (((lay)->member = (orig)->member),\
+ ((orig)->member = (func)))
+#define LayerUnwrap(orig,lay,member) \
+ ((orig)->member = (lay)->member)
+
+/*
+ * This is the window private structure allocated for
+ * all windows. There are two possible alternatives here,
+ * either the window belongs to a single layer and uses its
+ * internal clip/borderClip lists or the window belongs to one
+ * or more layers and uses a separate clip/borderclip for each
+ * layer. When this is integrated into the core window struct,
+ * the LayerWinKind can become a single bit saving 8 bytes per
+ * window.
+ */
+
+typedef struct _LayerWin {
+ Bool isList;
+ union {
+ LayerPtr pLayer;
+ LayerListPtr pLayList;
+ } u;
+} LayerWinRec;
+
+typedef struct _LayerList {
+ LayerListPtr pNext; /* list of layers for this window */
+ LayerPtr pLayer; /* the layer */
+ Bool inheritClip; /* use the window clipList/borderClip */
+ RegionRec clipList; /* per-layer clip/border clip lists */
+ RegionRec borderClip;
+} LayerListRec;
+
+#define layerGetWinPriv(pWin) ((LayerWinPtr) (pWin)->devPrivates[layerWinPrivateIndex].ptr)
+#define layerWinPriv(pWin) LayerWinPtr pLayWin = layerGetWinPriv(pWin)
+
+#define layerWinLayer(pLayWin) ((pLayWin)->isList ? (pLayWin)->u.pLayList->pLayer : (pLayWin)->u.pLayer)
+
+typedef struct _LayerWinLoop {
+ LayerWinPtr pLayWin;
+ LayerListPtr pLayList;
+ PixmapPtr pPixmap; /* original window pixmap */
+ RegionRec clipList; /* saved original clipList contents */
+ RegionRec borderClip; /* saved original borderClip contents */
+} LayerWinLoopRec, *LayerWinLoopPtr;
+
+#define layerWinFirstLayer(pLayWin,pLayList) ((pLayWin)->isList ? ((pLayList) = (pLayWin)->u.pLayList)->pLayer : pLayWin->u.pLayer)
+#define layerWinNextLayer(pLayWin,pLayList) ((pLayWin)->isList ? ((pLayList) = (pLayList)->pNext)->pLayer : 0)
+
+LayerPtr
+LayerWindowFirst (WindowPtr pWin, LayerWinLoopPtr pLoop);
+
+LayerPtr
+LayerWindowNext (WindowPtr pWin, LayerWinLoopPtr pLoop);
+
+void
+LayerWindowDone (WindowPtr pWin, LayerWinLoopPtr pLoop);
+
+
+/*
+ * This is the GC private structure allocated for all GCs.
+ * XXX this is really messed up; I'm not sure how to fix it yet
+ */
+
+typedef struct _LayerGC {
+ GCFuncs *funcs;
+ LayerKindPtr pKind;
+} LayerGCRec;
+
+#define layerGetGCPriv(pGC) ((LayerGCPtr) (pGC)->devPrivates[layerGCPrivateIndex].ptr)
+#define layerGCPriv(pGC) LayerGCPtr pLayGC = layerGetGCPriv(pGC)
+
+/*
+ * This is the screen private, it contains
+ * the layer kinds and the layers themselves
+ */
+typedef struct _LayerScreen {
+ int nkinds; /* number of elements in kinds array */
+ LayerKindPtr kinds; /* created kinds; reallocated when new ones added */
+ LayerPtr pLayers; /* list of layers for this screen */
+} LayerScreenRec;
+
+#define layerGetScrPriv(pScreen) ((LayerScreenPtr) (pScreen)->devPrivates[layerScrPrivateIndex].ptr)
+#define layerScrPriv(pScreen) LayerScreenPtr pLayScr = layerGetScrPriv(pScreen)
+
+Bool
+layerCloseScreen (int index, ScreenPtr pScreen);
+
+Bool
+layerCreateWindow (WindowPtr pWin);
+
+Bool
+layerDestroyWindow (WindowPtr pWin);
+
+Bool
+layerChangeWindowAttributes (WindowPtr pWin, unsigned long mask);
+
+void
+layerPaintWindowBackground (WindowPtr pWin, RegionPtr pRegion, int what);
+
+void
+layerPaintWindowBorder (WindowPtr pWin, RegionPtr pRegion, int what);
+
+void
+layerCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc);
+
+PixmapPtr
+layerCreatePixmap (ScreenPtr pScreen, int width, int height, int depth);
+
+Bool
+layerDestroyPixmap (PixmapPtr pPixmap);
+
+Bool
+layerCreateGC (GCPtr pGC);
+
+#ifdef RENDER
+void
+layerComposite (CARD8 op,
+ PicturePtr pSrc,
+ PicturePtr pMask,
+ PicturePtr pDst,
+ INT16 xSrc,
+ INT16 ySrc,
+ INT16 xMask,
+ INT16 yMask,
+ INT16 xDst,
+ INT16 yDst,
+ CARD16 width,
+ CARD16 height);
+void
+layerGlyphs (CARD8 op,
+ PicturePtr pSrc,
+ PicturePtr pDst,
+ PictFormatPtr maskFormat,
+ INT16 xSrc,
+ INT16 ySrc,
+ int nlist,
+ GlyphListPtr list,
+ GlyphPtr *glyphs);
+
+void
+layerCompositeRects (CARD8 op,
+ PicturePtr pDst,
+ xRenderColor *color,
+ int nRect,
+ xRectangle *rects);
+#endif
+void layerValidateGC(GCPtr, unsigned long, DrawablePtr);
+void layerChangeGC(GCPtr, unsigned long);
+void layerCopyGC(GCPtr, unsigned long, GCPtr);
+void layerDestroyGC(GCPtr);
+void layerChangeClip(GCPtr, int, pointer, int);
+void layerDestroyClip(GCPtr);
+void layerCopyClip(GCPtr, GCPtr);
+
+void
+layerFillSpans(DrawablePtr pDraw,
+ GC *pGC,
+ int nInit,
+ DDXPointPtr pptInit,
+ int *pwidthInit,
+ int fSorted);
+
+void
+layerSetSpans(DrawablePtr pDraw,
+ GCPtr pGC,
+ char *pcharsrc,
+ DDXPointPtr pptInit,
+ int *pwidthInit,
+ int nspans,
+ int fSorted);
+
+void
+layerPutImage(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int depth,
+ int x, int y, int w, int h,
+ int leftPad,
+ int format,
+ char *pImage
+);
+
+RegionPtr
+layerCopyArea(
+ DrawablePtr pSrc,
+ DrawablePtr pDst,
+ GC *pGC,
+ int srcx, int srcy,
+ int width, int height,
+ int dstx, int dsty
+);
+
+RegionPtr
+layerCopyPlane(
+ DrawablePtr pSrc,
+ DrawablePtr pDst,
+ GCPtr pGC,
+ int srcx, int srcy,
+ int width, int height,
+ int dstx, int dsty,
+ unsigned long bitPlane
+);
+
+void
+layerPolyPoint(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int mode,
+ int npt,
+ xPoint *pptInit
+);
+void
+layerPolylines(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int mode,
+ int npt,
+ DDXPointPtr pptInit
+);
+
+void
+layerPolySegment(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int nseg,
+ xSegment *pSeg
+);
+
+void
+layerPolyRectangle(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int nRects,
+ xRectangle *pRects
+);
+
+void
+layerPolyArc(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int narcs,
+ xArc *parcs
+);
+
+void
+layerFillPolygon(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int shape,
+ int mode,
+ int count,
+ DDXPointPtr pptInit
+);
+
+void
+layerPolyFillRect(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int nRectsInit,
+ xRectangle *pRectsInit
+);
+
+void
+layerPolyFillArc(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int narcs,
+ xArc *parcs
+);
+
+int
+layerPolyText8(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int x,
+ int y,
+ int count,
+ char *chars
+);
+
+int
+layerPolyText16(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int x,
+ int y,
+ int count,
+ unsigned short *chars
+);
+
+void
+layerImageText8(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int x,
+ int y,
+ int count,
+ char *chars
+);
+
+void
+layerImageText16(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int x,
+ int y,
+ int count,
+ unsigned short *chars
+);
+
+void
+layerImageGlyphBlt(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int x, int y,
+ unsigned int nglyph,
+ CharInfoPtr *ppci,
+ pointer pglyphBase
+);
+
+void
+layerPolyGlyphBlt(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int x, int y,
+ unsigned int nglyph,
+ CharInfoPtr *ppci,
+ pointer pglyphBase
+);
+
+void
+layerPushPixels(
+ GCPtr pGC,
+ PixmapPtr pBitMap,
+ DrawablePtr pDraw,
+ int dx, int dy, int xOrg, int yOrg
+);
+
+#endif /* _LAYERSTR_H_ */
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