diff options
Diffstat (limited to 'xorg-server/miext/cw/cw.c')
| -rw-r--r-- | xorg-server/miext/cw/cw.c | 1051 |
1 files changed, 524 insertions, 527 deletions
diff --git a/xorg-server/miext/cw/cw.c b/xorg-server/miext/cw/cw.c index db06209d9..87ced2f6a 100644 --- a/xorg-server/miext/cw/cw.c +++ b/xorg-server/miext/cw/cw.c @@ -1,527 +1,524 @@ -/*
- * 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
-
-DevPrivateKeyRec cwGCKeyRec;
-DevPrivateKeyRec cwScreenKeyRec;
-DevPrivateKeyRec cwWindowKeyRec;
-DevPrivateKeyRec cwPictureKeyRec;
-
-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 = RegionCreate(NULL, 0);
- RegionCopy(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;
-
- 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 = RegionExtents(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) */
- RegionTranslate(prgnSrc, -dx, -dy);
-
- pGC = GetScratchGC(pBackingPixmap->drawable.depth, pScreen);
- /*
- * Copy region to GC as clip, aligning as dest clip
- */
- pClip = RegionCreate(NULL, 0);
- RegionIntersect(pClip, &pWin->borderClip, prgnSrc);
- RegionTranslate(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 (!dixRegisterPrivateKey(&cwScreenKeyRec, PRIVATE_SCREEN, 0))
- return;
-
- if (!dixRegisterPrivateKey(&cwGCKeyRec, PRIVATE_GC, sizeof(cwGCRec)))
- return;
-
- if (!dixRegisterPrivateKey(&cwWindowKeyRec, PRIVATE_WINDOW, 0))
- return;
-
- if (!dixRegisterPrivateKey(&cwPictureKeyRec, PRIVATE_PICTURE, 0))
- 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);
-}
+/* + * 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 + +DevPrivateKeyRec cwGCKeyRec; +DevPrivateKeyRec cwScreenKeyRec; +DevPrivateKeyRec cwWindowKeyRec; +DevPrivateKeyRec cwPictureKeyRec; + +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 = RegionCreate(NULL, 0); + RegionCopy(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; + + 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 = RegionExtents(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) */ + RegionTranslate(prgnSrc, -dx, -dy); + + pGC = GetScratchGC(pBackingPixmap->drawable.depth, pScreen); + /* + * Copy region to GC as clip, aligning as dest clip + */ + pClip = RegionCreate(NULL, 0); + RegionIntersect(pClip, &pWin->borderClip, prgnSrc); + RegionTranslate(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 (!dixRegisterPrivateKey(&cwScreenKeyRec, PRIVATE_SCREEN, 0)) + return; + + if (!dixRegisterPrivateKey(&cwGCKeyRec, PRIVATE_GC, sizeof(cwGCRec))) + return; + + if (!dixRegisterPrivateKey(&cwWindowKeyRec, PRIVATE_WINDOW, 0)) + return; + + if (!dixRegisterPrivateKey(&cwPictureKeyRec, PRIVATE_PICTURE, 0)) + 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); +} |