diff options
Diffstat (limited to 'xorg-server/miext/cw/cw.c')
| -rw-r--r-- | xorg-server/miext/cw/cw.c | 1044 |
1 files changed, 522 insertions, 522 deletions
diff --git a/xorg-server/miext/cw/cw.c b/xorg-server/miext/cw/cw.c index 247cb83e1..72a90c699 100644 --- a/xorg-server/miext/cw/cw.c +++ b/xorg-server/miext/cw/cw.c @@ -1,522 +1,522 @@ -/* - * 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. - */ - -#ifdef HAVE_DIX_CONFIG_H -#include <dix-config.h> -#endif - -#include <string.h> - -#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 - -static int cwGCKeyIndex; -DevPrivateKey cwGCKey = &cwGCKeyIndex; -static int cwScreenKeyIndex; -DevPrivateKey cwScreenKey = &cwScreenKeyIndex; -static int cwWindowKeyIndex; -DevPrivateKey cwWindowKey = &cwWindowKeyIndex; -static int cwPictureKeyIndex; -DevPrivateKey cwPictureKey = &cwPictureKeyIndex; -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, (XID)0, serverClient); - 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)dixLookupPrivate(&pGC->devPrivates, cwGCKey); - - 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)dixLookupPrivate(&pGCDst->devPrivates, cwGCKey); - - FUNC_PROLOGUE(pGCDst, pPriv); - - (*pGCDst->funcs->CopyGC) (pGCSrc, mask, pGCDst); - - FUNC_EPILOGUE(pGCDst, pPriv); -} - -static void -cwDestroyGC(GCPtr pGC) -{ - cwGCPtr pPriv = (cwGCPtr)dixLookupPrivate(&pGC->devPrivates, cwGCKey); - - 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)dixLookupPrivate(&pGC->devPrivates, cwGCKey); - - 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)dixLookupPrivate(&pgcDst->devPrivates, cwGCKey); - - FUNC_PROLOGUE(pgcDst, pPriv); - - (*pgcDst->funcs->CopyClip)(pgcDst, pgcSrc); - - FUNC_EPILOGUE(pgcDst, pPriv); -} - -static void -cwDestroyClip(GCPtr pGC) -{ - cwGCPtr pPriv = (cwGCPtr)dixLookupPrivate(&pGC->devPrivates, cwGCKey); - - 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 -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; - Bool has_render = GetPictureScreenIfSet(pScreen) != NULL; - - if (!dixRequestPrivate(cwGCKey, sizeof(cwGCRec))) - return; - - pScreenPriv = xalloc(sizeof(cwScreenRec)); - if (!pScreenPriv) - return; - - dixSetPrivate(&pScreen->devPrivates, cwScreenKey, pScreenPriv); - - SCREEN_EPILOGUE(pScreen, CloseScreen, cwCloseScreen); - SCREEN_EPILOGUE(pScreen, GetImage, cwGetImage); - SCREEN_EPILOGUE(pScreen, GetSpans, cwGetSpans); - SCREEN_EPILOGUE(pScreen, CreateGC, cwCreateGC); - SCREEN_EPILOGUE(pScreen, CopyWindow, cwCopyWindow); - - SCREEN_EPILOGUE(pScreen, SetWindowPixmap, cwSetWindowPixmap); - SCREEN_EPILOGUE(pScreen, GetWindowPixmap, cwGetWindowPixmap); - - if (has_render) - cwInitializeRender(pScreen); -} - -static Bool -cwCloseScreen (int i, ScreenPtr pScreen) -{ - cwScreenPtr pScreenPriv; - PictureScreenPtr ps = GetPictureScreenIfSet(pScreen); - - pScreenPriv = (cwScreenPtr)dixLookupPrivate(&pScreen->devPrivates, - cwScreenKey); - pScreen->CloseScreen = pScreenPriv->CloseScreen; - pScreen->GetImage = pScreenPriv->GetImage; - pScreen->GetSpans = pScreenPriv->GetSpans; - pScreen->CreateGC = pScreenPriv->CreateGC; - pScreen->CopyWindow = pScreenPriv->CopyWindow; - - if (ps) - cwFiniRender(pScreen); - - xfree((pointer)pScreenPriv); - - return (*pScreen->CloseScreen)(i, pScreen); -} +/*
+ * 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.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <string.h>
+
+#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
+
+static int cwGCKeyIndex;
+DevPrivateKey cwGCKey = &cwGCKeyIndex;
+static int cwScreenKeyIndex;
+DevPrivateKey cwScreenKey = &cwScreenKeyIndex;
+static int cwWindowKeyIndex;
+DevPrivateKey cwWindowKey = &cwWindowKeyIndex;
+static int cwPictureKeyIndex;
+DevPrivateKey cwPictureKey = &cwPictureKeyIndex;
+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, (XID)0, serverClient);
+ if (status != Success)
+ return FALSE;
+
+ pPriv->serialNumber = 0;
+ pPriv->stateChanges = GCAllBits;
+
+ 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)))
+ {
+ ChangeGCVal 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].val = x_off - pDrawable->x;
+ vals[1].val = y_off - pDrawable->y;
+ ChangeGC(NullClient, pBackingGC,
+ (GCClipXOrigin | GCClipYOrigin), vals);
+
+ 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)
+ {
+ ChangeGCVal vals[2];
+ vals[0].val = pGC->patOrg.x + x_off;
+ vals[1].val = pGC->patOrg.y + y_off;
+ ChangeGC(NullClient, pBackingGC,
+ (GCTileStipXOrigin | GCTileStipYOrigin), vals);
+ }
+
+ ValidateGC(pBackingDrawable, pBackingGC);
+
+ FUNC_EPILOGUE(pGC, pPriv);
+}
+
+static void
+cwChangeGC(GCPtr pGC, unsigned long mask)
+{
+ cwGCPtr pPriv = (cwGCPtr)dixLookupPrivate(&pGC->devPrivates, cwGCKey);
+
+ 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)dixLookupPrivate(&pGCDst->devPrivates, cwGCKey);
+
+ FUNC_PROLOGUE(pGCDst, pPriv);
+
+ (*pGCDst->funcs->CopyGC) (pGCSrc, mask, pGCDst);
+
+ FUNC_EPILOGUE(pGCDst, pPriv);
+}
+
+static void
+cwDestroyGC(GCPtr pGC)
+{
+ cwGCPtr pPriv = (cwGCPtr)dixLookupPrivate(&pGC->devPrivates, cwGCKey);
+
+ 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)dixLookupPrivate(&pGC->devPrivates, cwGCKey);
+
+ 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)dixLookupPrivate(&pgcDst->devPrivates, cwGCKey);
+
+ FUNC_PROLOGUE(pgcDst, pPriv);
+
+ (*pgcDst->funcs->CopyClip)(pgcDst, pgcSrc);
+
+ FUNC_EPILOGUE(pgcDst, pPriv);
+}
+
+static void
+cwDestroyClip(GCPtr pGC)
+{
+ cwGCPtr pPriv = (cwGCPtr)dixLookupPrivate(&pGC->devPrivates, cwGCKey);
+
+ 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
+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;
+ Bool has_render = GetPictureScreenIfSet(pScreen) != NULL;
+
+ if (!dixRequestPrivate(cwGCKey, sizeof(cwGCRec)))
+ return;
+
+ pScreenPriv = malloc(sizeof(cwScreenRec));
+ if (!pScreenPriv)
+ return;
+
+ dixSetPrivate(&pScreen->devPrivates, cwScreenKey, pScreenPriv);
+
+ SCREEN_EPILOGUE(pScreen, CloseScreen, cwCloseScreen);
+ SCREEN_EPILOGUE(pScreen, GetImage, cwGetImage);
+ SCREEN_EPILOGUE(pScreen, GetSpans, cwGetSpans);
+ SCREEN_EPILOGUE(pScreen, CreateGC, cwCreateGC);
+ SCREEN_EPILOGUE(pScreen, CopyWindow, cwCopyWindow);
+
+ SCREEN_EPILOGUE(pScreen, SetWindowPixmap, cwSetWindowPixmap);
+ SCREEN_EPILOGUE(pScreen, GetWindowPixmap, cwGetWindowPixmap);
+
+ if (has_render)
+ cwInitializeRender(pScreen);
+}
+
+static Bool
+cwCloseScreen (int i, ScreenPtr pScreen)
+{
+ cwScreenPtr pScreenPriv;
+ PictureScreenPtr ps = GetPictureScreenIfSet(pScreen);
+
+ pScreenPriv = (cwScreenPtr)dixLookupPrivate(&pScreen->devPrivates,
+ cwScreenKey);
+ pScreen->CloseScreen = pScreenPriv->CloseScreen;
+ pScreen->GetImage = pScreenPriv->GetImage;
+ pScreen->GetSpans = pScreenPriv->GetSpans;
+ pScreen->CreateGC = pScreenPriv->CreateGC;
+ pScreen->CopyWindow = pScreenPriv->CopyWindow;
+
+ if (ps)
+ cwFiniRender(pScreen);
+
+ free((pointer)pScreenPriv);
+
+ return (*pScreen->CloseScreen)(i, pScreen);
+}
|