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-rw-r--r--miext/cw/cw.c685
1 files changed, 685 insertions, 0 deletions
diff --git a/miext/cw/cw.c b/miext/cw/cw.c
new file mode 100644
index 000000000..f834148a7
--- /dev/null
+++ b/miext/cw/cw.c
@@ -0,0 +1,685 @@
+/*
+ * Copyright © 2004 Eric Anholt
+ *
+ * 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 Eric Anholt not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Eric Anholt makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * ERIC ANHOLT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL ERIC ANHOLT 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.
+ */
+/* $Header$ */
+
+#include "gcstruct.h"
+#include "windowstr.h"
+#include "cw.h"
+
+#define CW_DEBUG 1
+
+#if CW_DEBUG
+#define CW_ASSERT(x) do { \
+ if (!(x)) { \
+ ErrorF("composite wrapper: assertion failed at %s:%d\n", __FUNC__, \
+ __LINE__); \
+ } \
+} while (0)
+#else
+#define CW_ASSERT(x) do {} while (0)
+#endif
+
+int cwGCIndex;
+int cwScreenIndex;
+int cwWindowIndex;
+#ifdef RENDER
+int cwPictureIndex;
+#endif
+static unsigned long cwGeneration = 0;
+extern GCOps cwGCOps;
+
+static Bool
+cwCloseScreen (int i, ScreenPtr pScreen);
+
+static void
+cwValidateGC(GCPtr pGC, unsigned long stateChanges, DrawablePtr pDrawable);
+static void
+cwChangeGC(GCPtr pGC, unsigned long mask);
+static void
+cwCopyGC(GCPtr pGCSrc, unsigned long mask, GCPtr pGCDst);
+static void
+cwDestroyGC(GCPtr pGC);
+static void
+cwChangeClip(GCPtr pGC, int type, pointer pvalue, int nrects);
+static void
+cwCopyClip(GCPtr pgcDst, GCPtr pgcSrc);
+static void
+cwDestroyClip(GCPtr pGC);
+
+GCFuncs cwGCFuncs = {
+ cwValidateGC,
+ cwChangeGC,
+ cwCopyGC,
+ cwDestroyGC,
+ cwChangeClip,
+ cwDestroyClip,
+ cwCopyClip,
+};
+
+/* Find the real drawable to draw to, and provide offsets that will translate
+ * window coordinates to backing pixmap coordinates.
+ */
+DrawablePtr
+cwGetBackingDrawable(DrawablePtr pDrawable, int *x_off, int *y_off)
+{
+ PixmapPtr pPixmap;
+
+ if (pDrawable->type == DRAWABLE_WINDOW &&
+ (pPixmap = getCwPixmap ((WindowPtr) pDrawable)))
+ {
+ *x_off = pDrawable->x - pPixmap->screen_x;
+ *y_off = pDrawable->y - pPixmap->screen_y;
+ return &pPixmap->drawable;
+ } else {
+ *x_off = *y_off = 0;
+ return pDrawable;
+ }
+}
+
+#define FUNC_PROLOGUE(pGC, pPriv) do { \
+ (pGC)->funcs = (pPriv)->wrapFuncs; \
+ (pGC)->ops = (pPriv)->wrapOps; \
+} while (0)
+
+#define FUNC_EPILOGUE(pGC, pPriv) do { \
+ (pPriv)->wrapFuncs = (pGC)->funcs; \
+ (pPriv)->wrapOps = (pGC)->ops; \
+ (pGC)->funcs = &cwGCFuncs; \
+ (pGC)->ops = &cwGCOps; \
+} while (0)
+
+
+static Bool
+cwCreateBackingGC(GCPtr pGC, DrawablePtr pDrawable)
+{
+ cwGCRec *pPriv = getCwGC(pGC);
+ int status, x_off, y_off;
+ XID noexpose = xFalse;
+ DrawablePtr pBackingDrawable;
+
+ pBackingDrawable = cwGetBackingDrawable(pDrawable, &x_off, &y_off);
+ pPriv->pBackingGC = CreateGC(pBackingDrawable, GCGraphicsExposures,
+ &noexpose, &status);
+ if (status != Success)
+ return FALSE;
+
+ pPriv->serialNumber = 0;
+ pPriv->stateChanges = (1 << (GCLastBit + 1)) - 1;
+
+ return TRUE;
+}
+
+static void
+cwDestroyBackingGC(GCPtr pGC)
+{
+ cwGCPtr pPriv;
+
+ pPriv = (cwGCPtr) getCwGC (pGC);
+
+ if (pPriv->pBackingGC) {
+ FreeGC(pPriv->pBackingGC, (XID)0);
+ pPriv->pBackingGC = NULL;
+ }
+}
+
+static void
+cwValidateGC(GCPtr pGC, unsigned long stateChanges, DrawablePtr pDrawable)
+{
+ GCPtr pBackingGC;
+ cwGCPtr pPriv;
+ DrawablePtr pBackingDrawable;
+ int x_off, y_off;
+
+ pPriv = (cwGCPtr) getCwGC (pGC);
+
+ FUNC_PROLOGUE(pGC, pPriv);
+
+ /*
+ * Must call ValidateGC to ensure pGC->pCompositeClip is valid
+ */
+ (*pGC->funcs->ValidateGC)(pGC, stateChanges, pDrawable);
+
+ if (!cwDrawableIsRedirWindow(pDrawable)) {
+ cwDestroyBackingGC(pGC);
+ FUNC_EPILOGUE(pGC, pPriv);
+ return;
+ } else {
+ if (!pPriv->pBackingGC && !cwCreateBackingGC(pGC, pDrawable)) {
+ FUNC_EPILOGUE(pGC, pPriv);
+ return;
+ }
+ }
+
+ pBackingGC = pPriv->pBackingGC;
+ pBackingDrawable = cwGetBackingDrawable(pDrawable, &x_off, &y_off);
+
+ pPriv->stateChanges |= stateChanges;
+
+ /*
+ * Copy the composite clip into the backing GC if either
+ * the drawable clip list has changed or the client has changed
+ * the client clip data
+ */
+ if (pDrawable->serialNumber != pPriv->serialNumber ||
+ (pPriv->stateChanges & (GCClipXOrigin|GCClipYOrigin|GCClipMask)))
+ {
+ XID vals[2];
+ RegionPtr pCompositeClip;
+
+ pCompositeClip = REGION_CREATE (pScreen, NULL, 0);
+ REGION_COPY (pScreen, pCompositeClip, pGC->pCompositeClip);
+
+ /* Either the drawable has changed, or the clip list in the drawable has
+ * changed. Copy the new clip list over and set the new translated
+ * offset for it.
+ */
+
+ (*pBackingGC->funcs->ChangeClip) (pBackingGC, CT_REGION,
+ (pointer) pCompositeClip, 0);
+
+ vals[0] = x_off - pDrawable->x;
+ vals[1] = y_off - pDrawable->y;
+ dixChangeGC(NullClient, pBackingGC,
+ (GCClipXOrigin | GCClipYOrigin), vals, NULL);
+
+ pPriv->serialNumber = pDrawable->serialNumber;
+ /*
+ * Mask off any client clip changes to make sure
+ * the clip list set above remains in effect
+ */
+ pPriv->stateChanges &= ~(GCClipXOrigin|GCClipYOrigin|GCClipMask);
+ }
+
+ if (pPriv->stateChanges) {
+ CopyGC(pGC, pBackingGC, pPriv->stateChanges);
+ pPriv->stateChanges = 0;
+ }
+
+ if ((pGC->patOrg.x + x_off) != pBackingGC->patOrg.x ||
+ (pGC->patOrg.y + y_off) != pBackingGC->patOrg.y)
+ {
+ XID vals[2];
+ vals[0] = pGC->patOrg.x + x_off;
+ vals[1] = pGC->patOrg.y + y_off;
+ dixChangeGC(NullClient, pBackingGC,
+ (GCTileStipXOrigin | GCTileStipYOrigin), vals, NULL);
+ }
+
+ ValidateGC(pBackingDrawable, pBackingGC);
+
+ FUNC_EPILOGUE(pGC, pPriv);
+}
+
+static void
+cwChangeGC(GCPtr pGC, unsigned long mask)
+{
+ cwGCPtr pPriv = (cwGCPtr)(pGC)->devPrivates[cwGCIndex].ptr;
+
+ FUNC_PROLOGUE(pGC, pPriv);
+
+ (*pGC->funcs->ChangeGC) (pGC, mask);
+
+ FUNC_EPILOGUE(pGC, pPriv);
+}
+
+static void
+cwCopyGC(GCPtr pGCSrc, unsigned long mask, GCPtr pGCDst)
+{
+ cwGCPtr pPriv = (cwGCPtr)(pGCDst)->devPrivates[cwGCIndex].ptr;
+
+ FUNC_PROLOGUE(pGCDst, pPriv);
+
+ (*pGCDst->funcs->CopyGC) (pGCSrc, mask, pGCDst);
+
+ FUNC_EPILOGUE(pGCDst, pPriv);
+}
+
+static void
+cwDestroyGC(GCPtr pGC)
+{
+ cwGCPtr pPriv = (cwGCPtr)(pGC)->devPrivates[cwGCIndex].ptr;
+
+ FUNC_PROLOGUE(pGC, pPriv);
+
+ cwDestroyBackingGC(pGC);
+
+ (*pGC->funcs->DestroyGC) (pGC);
+
+ /* leave it unwrapped */
+}
+
+static void
+cwChangeClip(GCPtr pGC, int type, pointer pvalue, int nrects)
+{
+ cwGCPtr pPriv = (cwGCPtr)(pGC)->devPrivates[cwGCIndex].ptr;
+
+ FUNC_PROLOGUE(pGC, pPriv);
+
+ (*pGC->funcs->ChangeClip)(pGC, type, pvalue, nrects);
+
+ FUNC_EPILOGUE(pGC, pPriv);
+}
+
+static void
+cwCopyClip(GCPtr pgcDst, GCPtr pgcSrc)
+{
+ cwGCPtr pPriv = (cwGCPtr)(pgcDst)->devPrivates[cwGCIndex].ptr;
+
+ FUNC_PROLOGUE(pgcDst, pPriv);
+
+ (*pgcDst->funcs->CopyClip)(pgcDst, pgcSrc);
+
+ FUNC_EPILOGUE(pgcDst, pPriv);
+}
+
+static void
+cwDestroyClip(GCPtr pGC)
+{
+ cwGCPtr pPriv = (cwGCPtr)(pGC)->devPrivates[cwGCIndex].ptr;
+
+ FUNC_PROLOGUE(pGC, pPriv);
+
+ (*pGC->funcs->DestroyClip)(pGC);
+
+ FUNC_EPILOGUE(pGC, pPriv);
+}
+
+/*
+ * Screen wrappers.
+ */
+
+#define SCREEN_PROLOGUE(pScreen, field) \
+ ((pScreen)->field = getCwScreen(pScreen)->field)
+
+#define SCREEN_EPILOGUE(pScreen, field, wrapper) do { \
+ getCwScreen(pScreen)->field = (pScreen)->field; \
+ (pScreen)->field = (wrapper); \
+} while (0)
+
+static Bool
+cwCreateGC(GCPtr pGC)
+{
+ cwGCPtr pPriv = getCwGC(pGC);
+ ScreenPtr pScreen = pGC->pScreen;
+ Bool ret;
+
+ bzero(pPriv, sizeof(cwGCRec));
+ SCREEN_PROLOGUE(pScreen, CreateGC);
+
+ if ( (ret = (*pScreen->CreateGC)(pGC)) )
+ FUNC_EPILOGUE(pGC, pPriv);
+
+ SCREEN_EPILOGUE(pScreen, CreateGC, cwCreateGC);
+
+ return ret;
+}
+
+static void
+cwGetImage(DrawablePtr pSrc, int x, int y, int w, int h, unsigned int format,
+ unsigned long planemask, char *pdstLine)
+{
+ ScreenPtr pScreen = pSrc->pScreen;
+ DrawablePtr pBackingDrawable;
+ int src_off_x, src_off_y;
+
+ SCREEN_PROLOGUE(pScreen, GetImage);
+
+ pBackingDrawable = cwGetBackingDrawable(pSrc, &src_off_x, &src_off_y);
+
+ CW_OFFSET_XY_SRC(x, y);
+
+ (*pScreen->GetImage)(pBackingDrawable, x, y, w, h, format, planemask,
+ pdstLine);
+
+ SCREEN_EPILOGUE(pScreen, GetImage, cwGetImage);
+}
+
+static void
+cwGetSpans(DrawablePtr pSrc, int wMax, DDXPointPtr ppt, int *pwidth,
+ int nspans, char *pdstStart)
+{
+ ScreenPtr pScreen = pSrc->pScreen;
+ DrawablePtr pBackingDrawable;
+ int i;
+ int src_off_x, src_off_y;
+
+ SCREEN_PROLOGUE(pScreen, GetSpans);
+
+ pBackingDrawable = cwGetBackingDrawable(pSrc, &src_off_x, &src_off_y);
+
+ for (i = 0; i < nspans; i++)
+ CW_OFFSET_XY_SRC(ppt[i].x, ppt[i].y);
+
+ (*pScreen->GetSpans)(pBackingDrawable, wMax, ppt, pwidth, nspans,
+ pdstStart);
+
+ SCREEN_EPILOGUE(pScreen, GetSpans, cwGetSpans);
+}
+
+static void
+cwFillRegionSolid(DrawablePtr pDrawable, RegionPtr pRegion, unsigned long pixel)
+{
+ ScreenPtr pScreen = pDrawable->pScreen;
+ GCPtr pGC;
+ BoxPtr pBox;
+ int nbox, i;
+ ChangeGCVal v[3];
+
+ pGC = GetScratchGC(pDrawable->depth, pScreen);
+ v[0].val = GXcopy;
+ v[1].val = pixel;
+ v[2].val = FillSolid;
+ dixChangeGC(NullClient, pGC, (GCFunction | GCForeground | GCFillStyle),
+ NULL, v);
+ ValidateGC(pDrawable, pGC);
+
+ pBox = REGION_RECTS(pRegion);
+ nbox = REGION_NUM_RECTS(pRegion);
+
+ for (i = 0; i < nbox; i++, pBox++) {
+ xRectangle rect;
+ rect.x = pBox->x1;
+ rect.y = pBox->y1;
+ rect.width = pBox->x2 - pBox->x1;
+ rect.height = pBox->y2 - pBox->y1;
+ (*pGC->ops->PolyFillRect)(pDrawable, pGC, 1, &rect);
+ }
+
+ FreeScratchGC(pGC);
+}
+
+static void
+cwFillRegionTiled(DrawablePtr pDrawable, RegionPtr pRegion, PixmapPtr pTile,
+ int x_off, int y_off)
+{
+ ScreenPtr pScreen = pDrawable->pScreen;
+ GCPtr pGC;
+ BoxPtr pBox;
+ int nbox, i;
+ ChangeGCVal v[5];
+
+ pGC = GetScratchGC(pDrawable->depth, pScreen);
+ v[0].val = GXcopy;
+ v[1].val = FillTiled;
+ v[2].ptr = (pointer) pTile;
+ v[3].val = x_off;
+ v[4].val = y_off;
+ dixChangeGC(NullClient, pGC, (GCFunction | GCFillStyle | GCTile |
+ GCTileStipXOrigin | GCTileStipYOrigin), NULL, v);
+
+ ValidateGC(pDrawable, pGC);
+
+ pBox = REGION_RECTS(pRegion);
+ nbox = REGION_NUM_RECTS(pRegion);
+
+ for (i = 0; i < nbox; i++, pBox++) {
+ xRectangle rect;
+ rect.x = pBox->x1;
+ rect.y = pBox->y1;
+ rect.width = pBox->x2 - pBox->x1;
+ rect.height = pBox->y2 - pBox->y1;
+ (*pGC->ops->PolyFillRect)(pDrawable, pGC, 1, &rect);
+ }
+
+ FreeScratchGC(pGC);
+}
+
+static void
+cwPaintWindowBackground(WindowPtr pWin, RegionPtr pRegion, int what)
+{
+ ScreenPtr pScreen = pWin->drawable.pScreen;
+
+ SCREEN_PROLOGUE(pScreen, PaintWindowBackground);
+
+ if (!cwDrawableIsRedirWindow((DrawablePtr)pWin)) {
+ (*pScreen->PaintWindowBackground)(pWin, pRegion, what);
+ } else {
+ DrawablePtr pBackingDrawable;
+ int x_off, y_off, x_screen, y_screen;
+
+ while (pWin && pWin->backgroundState == ParentRelative)
+ pWin = pWin->parent;
+
+ pBackingDrawable = cwGetBackingDrawable((DrawablePtr)pWin, &x_off,
+ &y_off);
+
+ x_screen = x_off - pWin->drawable.x;
+ y_screen = y_off - pWin->drawable.y;
+
+ if (pWin && (pWin->backgroundState == BackgroundPixel ||
+ pWin->backgroundState == BackgroundPixmap))
+ {
+ REGION_TRANSLATE(pScreen, pRegion, x_screen, y_screen);
+
+ if (pWin->backgroundState == BackgroundPixel) {
+ cwFillRegionSolid(pBackingDrawable, pRegion,
+ pWin->background.pixel);
+ } else {
+ cwFillRegionTiled(pBackingDrawable, pRegion,
+ pWin->background.pixmap, x_off, y_off);
+ }
+
+ REGION_TRANSLATE(pScreen, pRegion, -x_screen, -y_screen);
+ }
+ }
+
+ SCREEN_EPILOGUE(pScreen, PaintWindowBackground, cwPaintWindowBackground);
+}
+
+static void
+cwPaintWindowBorder(WindowPtr pWin, RegionPtr pRegion, int what)
+{
+ ScreenPtr pScreen = pWin->drawable.pScreen;
+
+ SCREEN_PROLOGUE(pScreen, PaintWindowBorder);
+
+ if (!cwDrawableIsRedirWindow((DrawablePtr)pWin)) {
+ (*pScreen->PaintWindowBorder)(pWin, pRegion, what);
+ } else {
+ DrawablePtr pBackingDrawable;
+ int x_off, y_off, x_screen, y_screen;
+
+ pBackingDrawable = cwGetBackingDrawable((DrawablePtr)pWin, &x_off,
+ &y_off);
+
+ x_screen = x_off - pWin->drawable.x;
+ y_screen = y_off - pWin->drawable.y;
+
+ REGION_TRANSLATE(pScreen, pRegion, x_screen, y_screen);
+
+ if (pWin->borderIsPixel) {
+ cwFillRegionSolid(pBackingDrawable, pRegion, pWin->border.pixel);
+ } else {
+ cwFillRegionTiled(pBackingDrawable, pRegion, pWin->border.pixmap,
+ x_off, y_off);
+ }
+
+ REGION_TRANSLATE(pScreen, pRegion, -x_screen, -y_screen);
+ }
+
+ SCREEN_EPILOGUE(pScreen, PaintWindowBorder, cwPaintWindowBorder);
+}
+
+static void
+cwCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
+{
+ ScreenPtr pScreen = pWin->drawable.pScreen;
+
+ SCREEN_PROLOGUE(pScreen, CopyWindow);
+
+ if (!cwDrawableIsRedirWindow((DrawablePtr)pWin)) {
+ (*pScreen->CopyWindow)(pWin, ptOldOrg, prgnSrc);
+ } else {
+ GCPtr pGC;
+ BoxPtr pExtents;
+ int x_off, y_off;
+ int dx, dy;
+ PixmapPtr pBackingPixmap;
+ RegionPtr pClip;
+ int src_x, src_y, dst_x, dst_y, w, h;
+
+ dx = ptOldOrg.x - pWin->drawable.x;
+ dy = ptOldOrg.y - pWin->drawable.y;
+
+ pExtents = REGION_EXTENTS(pScreen, prgnSrc);
+
+ pBackingPixmap = (PixmapPtr) cwGetBackingDrawable((DrawablePtr)pWin,
+ &x_off, &y_off);
+
+ src_x = pExtents->x1 - pBackingPixmap->screen_x;
+ src_y = pExtents->y1 - pBackingPixmap->screen_y;
+ w = pExtents->x2 - pExtents->x1;
+ h = pExtents->y2 - pExtents->y1;
+ dst_x = src_x - dx;
+ dst_y = src_y - dy;
+
+ /* Translate region (as required by API) */
+ REGION_TRANSLATE(pScreen, prgnSrc, -dx, -dy);
+
+ pGC = GetScratchGC(pBackingPixmap->drawable.depth, pScreen);
+ /*
+ * Copy region to GC as clip, aligning as dest clip
+ */
+ pClip = REGION_CREATE (pScreen, NULL, 0);
+ REGION_INTERSECT(pScreen, pClip, &pWin->borderClip, prgnSrc);
+ REGION_TRANSLATE(pScreen, pClip,
+ -pBackingPixmap->screen_x,
+ -pBackingPixmap->screen_y);
+
+ (*pGC->funcs->ChangeClip) (pGC, CT_REGION, pClip, 0);
+
+ ValidateGC(&pBackingPixmap->drawable, pGC);
+
+ (*pGC->ops->CopyArea) (&pBackingPixmap->drawable,
+ &pBackingPixmap->drawable, pGC,
+ src_x, src_y, w, h, dst_x, dst_y);
+
+ (*pGC->funcs->DestroyClip) (pGC);
+
+ FreeScratchGC(pGC);
+ }
+
+ SCREEN_EPILOGUE(pScreen, CopyWindow, cwCopyWindow);
+}
+
+static PixmapPtr
+cwGetWindowPixmap (WindowPtr pWin)
+{
+ PixmapPtr pPixmap = getCwPixmap (pWin);
+
+ if (!pPixmap)
+ {
+ ScreenPtr pScreen = pWin->drawable.pScreen;
+ SCREEN_PROLOGUE(pScreen, GetWindowPixmap);
+ if (pScreen->GetWindowPixmap)
+ pPixmap = (*pScreen->GetWindowPixmap) (pWin);
+ SCREEN_EPILOGUE(pScreen, GetWindowPixmap, cwGetWindowPixmap);
+ }
+ return pPixmap;
+}
+
+static void
+cwSetWindowPixmap (WindowPtr pWindow, PixmapPtr pPixmap)
+{
+ ScreenPtr pScreen = pWindow->drawable.pScreen;
+
+ if (pPixmap == (*pScreen->GetScreenPixmap) (pScreen))
+ pPixmap = NULL;
+ setCwPixmap (pWindow, pPixmap);
+}
+
+/* Screen initialization/teardown */
+void
+miInitializeCompositeWrapper(ScreenPtr pScreen)
+{
+ cwScreenPtr pScreenPriv;
+
+ if (cwGeneration != serverGeneration)
+ {
+ cwScreenIndex = AllocateScreenPrivateIndex();
+ if (cwScreenIndex < 0)
+ return;
+ cwGCIndex = AllocateGCPrivateIndex();
+ cwWindowIndex = AllocateWindowPrivateIndex();
+#ifdef RENDER
+ cwPictureIndex = AllocatePicturePrivateIndex();
+#endif
+ cwGeneration = serverGeneration;
+ }
+ if (!AllocateGCPrivate(pScreen, cwGCIndex, sizeof(cwGCRec)))
+ return;
+ if (!AllocateWindowPrivate(pScreen, cwWindowIndex, 0))
+ return;
+#ifdef RENDER
+ if (!AllocatePicturePrivate(pScreen, cwPictureIndex, 0))
+ return;
+#endif
+ pScreenPriv = (cwScreenPtr)xalloc(sizeof(cwScreenRec));
+ if (!pScreenPriv)
+ return;
+
+ pScreen->devPrivates[cwScreenIndex].ptr = (pointer)pScreenPriv;
+
+ SCREEN_EPILOGUE(pScreen, CloseScreen, cwCloseScreen);
+ SCREEN_EPILOGUE(pScreen, GetImage, cwGetImage);
+ SCREEN_EPILOGUE(pScreen, GetSpans, cwGetSpans);
+ SCREEN_EPILOGUE(pScreen, CreateGC, cwCreateGC);
+ SCREEN_EPILOGUE(pScreen, PaintWindowBackground, cwPaintWindowBackground);
+ SCREEN_EPILOGUE(pScreen, PaintWindowBorder, cwPaintWindowBorder);
+ SCREEN_EPILOGUE(pScreen, CopyWindow, cwCopyWindow);
+
+ SCREEN_EPILOGUE(pScreen, SetWindowPixmap, cwSetWindowPixmap);
+ SCREEN_EPILOGUE(pScreen, GetWindowPixmap, cwGetWindowPixmap);
+
+#ifdef RENDER
+ if (GetPictureScreen (pScreen))
+ cwInitializeRender(pScreen);
+#endif
+}
+
+static Bool
+cwCloseScreen (int i, ScreenPtr pScreen)
+{
+ cwScreenPtr pScreenPriv;
+#ifdef RENDER
+ PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
+#endif
+
+ pScreenPriv = (cwScreenPtr)pScreen->devPrivates[cwScreenIndex].ptr;
+
+ pScreen->CloseScreen = pScreenPriv->CloseScreen;
+ pScreen->GetImage = pScreenPriv->GetImage;
+ pScreen->GetSpans = pScreenPriv->GetSpans;
+ pScreen->CreateGC = pScreenPriv->CreateGC;
+ pScreen->PaintWindowBackground = pScreenPriv->PaintWindowBackground;
+ pScreen->PaintWindowBorder = pScreenPriv->PaintWindowBorder;
+ pScreen->CopyWindow = pScreenPriv->CopyWindow;
+
+#ifdef RENDER
+ if (ps)
+ cwFiniRender(pScreen);
+#endif
+
+ xfree((pointer)pScreenPriv);
+
+ return (*pScreen->CloseScreen)(i, pScreen);
+}
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