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-rw-r--r--xorg-server/mi/migc.c479
1 files changed, 230 insertions, 249 deletions
diff --git a/xorg-server/mi/migc.c b/xorg-server/mi/migc.c
index 50abefcea..c9cdd12af 100644
--- a/xorg-server/mi/migc.c
+++ b/xorg-server/mi/migc.c
@@ -1,249 +1,230 @@
-/*
-
-Copyright 1993, 1998 The Open Group
-
-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.
-
-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 OPEN GROUP 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 of The Open Group shall
-not be used in advertising or otherwise to promote the sale, use or
-other dealings in this Software without prior written authorization
-from The Open Group.
-
-*/
-
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include "scrnintstr.h"
-#include "gcstruct.h"
-#include "pixmapstr.h"
-#include "windowstr.h"
-#include "migc.h"
-
-/* ARGSUSED */
-void
-miChangeGC(GCPtr pGC, unsigned long mask)
-{
- return;
-}
-
-void
-miDestroyGC(GCPtr pGC)
-{
- if (pGC->pRotatedPixmap)
- (*pGC->pScreen->DestroyPixmap) (pGC->pRotatedPixmap);
- if (pGC->freeCompClip)
- RegionDestroy(pGC->pCompositeClip);
-}
-
-void
-miDestroyClip(GCPtr pGC)
-{
- if (pGC->clientClipType == CT_NONE)
- return;
- else if (pGC->clientClipType == CT_PIXMAP)
- {
- (*pGC->pScreen->DestroyPixmap) ((PixmapPtr) (pGC->clientClip));
- }
- else
- {
- /*
- * we know we'll never have a list of rectangles, since ChangeClip
- * immediately turns them into a region
- */
- RegionDestroy(pGC->clientClip);
- }
- pGC->clientClip = NULL;
- pGC->clientClipType = CT_NONE;
-}
-
-void
-miChangeClip( GCPtr pGC, int type, pointer pvalue, int nrects)
-{
- (*pGC->funcs->DestroyClip) (pGC);
- if (type == CT_PIXMAP)
- {
- /* convert the pixmap to a region */
- pGC->clientClip = (pointer) BitmapToRegion(pGC->pScreen,
- (PixmapPtr) pvalue);
- (*pGC->pScreen->DestroyPixmap) (pvalue);
- }
- else if (type == CT_REGION)
- {
- /* stuff the region in the GC */
- pGC->clientClip = pvalue;
- }
- else if (type != CT_NONE)
- {
- pGC->clientClip = (pointer) RegionFromRects(nrects,
- (xRectangle *) pvalue,
- type);
- free(pvalue);
- }
- pGC->clientClipType = (type != CT_NONE && pGC->clientClip) ? CT_REGION : CT_NONE;
- pGC->stateChanges |= GCClipMask;
-}
-
-void
-miCopyClip(GCPtr pgcDst, GCPtr pgcSrc)
-{
- RegionPtr prgnNew;
-
- switch (pgcSrc->clientClipType)
- {
- case CT_PIXMAP:
- ((PixmapPtr) pgcSrc->clientClip)->refcnt++;
- /* Fall through !! */
- case CT_NONE:
- (*pgcDst->funcs->ChangeClip) (pgcDst, (int) pgcSrc->clientClipType,
- pgcSrc->clientClip, 0);
- break;
- case CT_REGION:
- prgnNew = RegionCreate(NULL, 1);
- RegionCopy(prgnNew, (RegionPtr) (pgcSrc->clientClip));
- (*pgcDst->funcs->ChangeClip) (pgcDst, CT_REGION, (pointer) prgnNew, 0);
- break;
- }
-}
-
-/* ARGSUSED */
-void
-miCopyGC(GCPtr pGCSrc, unsigned long changes, GCPtr pGCDst)
-{
- return;
-}
-
-void
-miComputeCompositeClip( GCPtr pGC, DrawablePtr pDrawable)
-{
- if (pDrawable->type == DRAWABLE_WINDOW)
- {
- WindowPtr pWin = (WindowPtr) pDrawable;
- RegionPtr pregWin;
- Bool freeTmpClip, freeCompClip;
-
- if (pGC->subWindowMode == IncludeInferiors)
- {
- pregWin = NotClippedByChildren(pWin);
- freeTmpClip = TRUE;
- }
- else
- {
- pregWin = &pWin->clipList;
- freeTmpClip = FALSE;
- }
- freeCompClip = pGC->freeCompClip;
-
- /*
- * if there is no client clip, we can get by with just keeping the
- * pointer we got, and remembering whether or not should destroy (or
- * maybe re-use) it later. this way, we avoid unnecessary copying of
- * regions. (this wins especially if many clients clip by children
- * and have no client clip.)
- */
- if (pGC->clientClipType == CT_NONE)
- {
- if (freeCompClip)
- RegionDestroy(pGC->pCompositeClip);
- pGC->pCompositeClip = pregWin;
- pGC->freeCompClip = freeTmpClip;
- }
- else
- {
- /*
- * we need one 'real' region to put into the composite clip. if
- * pregWin the current composite clip are real, we can get rid of
- * one. if pregWin is real and the current composite clip isn't,
- * use pregWin for the composite clip. if the current composite
- * clip is real and pregWin isn't, use the current composite
- * clip. if neither is real, create a new region.
- */
-
- RegionTranslate(pGC->clientClip,
- pDrawable->x + pGC->clipOrg.x,
- pDrawable->y + pGC->clipOrg.y);
-
- if (freeCompClip)
- {
- RegionIntersect(pGC->pCompositeClip,
- pregWin, pGC->clientClip);
- if (freeTmpClip)
- RegionDestroy(pregWin);
- }
- else if (freeTmpClip)
- {
- RegionIntersect(pregWin, pregWin, pGC->clientClip);
- pGC->pCompositeClip = pregWin;
- }
- else
- {
- pGC->pCompositeClip = RegionCreate(NullBox, 0);
- RegionIntersect(pGC->pCompositeClip,
- pregWin, pGC->clientClip);
- }
- pGC->freeCompClip = TRUE;
- RegionTranslate(pGC->clientClip,
- -(pDrawable->x + pGC->clipOrg.x),
- -(pDrawable->y + pGC->clipOrg.y));
- }
- } /* end of composite clip for a window */
- else
- {
- BoxRec pixbounds;
-
- /* XXX should we translate by drawable.x/y here ? */
- /* If you want pixmaps in offscreen memory, yes */
- pixbounds.x1 = pDrawable->x;
- pixbounds.y1 = pDrawable->y;
- pixbounds.x2 = pDrawable->x + pDrawable->width;
- pixbounds.y2 = pDrawable->y + pDrawable->height;
-
- if (pGC->freeCompClip)
- {
- RegionReset(pGC->pCompositeClip, &pixbounds);
- }
- else
- {
- pGC->freeCompClip = TRUE;
- pGC->pCompositeClip = RegionCreate(&pixbounds, 1);
- }
-
- if (pGC->clientClipType == CT_REGION)
- {
- if(pDrawable->x || pDrawable->y) {
- RegionTranslate(pGC->clientClip,
- pDrawable->x + pGC->clipOrg.x,
- pDrawable->y + pGC->clipOrg.y);
- RegionIntersect(pGC->pCompositeClip,
- pGC->pCompositeClip, pGC->clientClip);
- RegionTranslate(pGC->clientClip,
- -(pDrawable->x + pGC->clipOrg.x),
- -(pDrawable->y + pGC->clipOrg.y));
- } else {
- RegionTranslate(pGC->pCompositeClip,
- -pGC->clipOrg.x, -pGC->clipOrg.y);
- RegionIntersect(pGC->pCompositeClip,
- pGC->pCompositeClip, pGC->clientClip);
- RegionTranslate(pGC->pCompositeClip,
- pGC->clipOrg.x, pGC->clipOrg.y);
- }
- }
- } /* end of composite clip for pixmap */
-} /* end miComputeCompositeClip */
+/*
+
+Copyright 1993, 1998 The Open Group
+
+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.
+
+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 OPEN GROUP 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 of The Open Group shall
+not be used in advertising or otherwise to promote the sale, use or
+other dealings in this Software without prior written authorization
+from The Open Group.
+
+*/
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "scrnintstr.h"
+#include "gcstruct.h"
+#include "pixmapstr.h"
+#include "windowstr.h"
+#include "migc.h"
+
+/* ARGSUSED */
+void
+miChangeGC(GCPtr pGC, unsigned long mask)
+{
+ return;
+}
+
+void
+miDestroyGC(GCPtr pGC)
+{
+ if (pGC->pRotatedPixmap)
+ (*pGC->pScreen->DestroyPixmap) (pGC->pRotatedPixmap);
+ if (pGC->freeCompClip)
+ RegionDestroy(pGC->pCompositeClip);
+}
+
+void
+miDestroyClip(GCPtr pGC)
+{
+ if (pGC->clientClipType == CT_NONE)
+ return;
+ else if (pGC->clientClipType == CT_PIXMAP) {
+ (*pGC->pScreen->DestroyPixmap) ((PixmapPtr) (pGC->clientClip));
+ }
+ else {
+ /*
+ * we know we'll never have a list of rectangles, since ChangeClip
+ * immediately turns them into a region
+ */
+ RegionDestroy(pGC->clientClip);
+ }
+ pGC->clientClip = NULL;
+ pGC->clientClipType = CT_NONE;
+}
+
+void
+miChangeClip(GCPtr pGC, int type, pointer pvalue, int nrects)
+{
+ (*pGC->funcs->DestroyClip) (pGC);
+ if (type == CT_PIXMAP) {
+ /* convert the pixmap to a region */
+ pGC->clientClip = (pointer) BitmapToRegion(pGC->pScreen,
+ (PixmapPtr) pvalue);
+ (*pGC->pScreen->DestroyPixmap) (pvalue);
+ }
+ else if (type == CT_REGION) {
+ /* stuff the region in the GC */
+ pGC->clientClip = pvalue;
+ }
+ else if (type != CT_NONE) {
+ pGC->clientClip = (pointer) RegionFromRects(nrects,
+ (xRectangle *) pvalue,
+ type);
+ free(pvalue);
+ }
+ pGC->clientClipType = (type != CT_NONE &&
+ pGC->clientClip) ? CT_REGION : CT_NONE;
+ pGC->stateChanges |= GCClipMask;
+}
+
+void
+miCopyClip(GCPtr pgcDst, GCPtr pgcSrc)
+{
+ RegionPtr prgnNew;
+
+ switch (pgcSrc->clientClipType) {
+ case CT_PIXMAP:
+ ((PixmapPtr) pgcSrc->clientClip)->refcnt++;
+ /* Fall through !! */
+ case CT_NONE:
+ (*pgcDst->funcs->ChangeClip) (pgcDst, (int) pgcSrc->clientClipType,
+ pgcSrc->clientClip, 0);
+ break;
+ case CT_REGION:
+ prgnNew = RegionCreate(NULL, 1);
+ RegionCopy(prgnNew, (RegionPtr) (pgcSrc->clientClip));
+ (*pgcDst->funcs->ChangeClip) (pgcDst, CT_REGION, (pointer) prgnNew, 0);
+ break;
+ }
+}
+
+/* ARGSUSED */
+void
+miCopyGC(GCPtr pGCSrc, unsigned long changes, GCPtr pGCDst)
+{
+ return;
+}
+
+void
+miComputeCompositeClip(GCPtr pGC, DrawablePtr pDrawable)
+{
+ if (pDrawable->type == DRAWABLE_WINDOW) {
+ WindowPtr pWin = (WindowPtr) pDrawable;
+ RegionPtr pregWin;
+ Bool freeTmpClip, freeCompClip;
+
+ if (pGC->subWindowMode == IncludeInferiors) {
+ pregWin = NotClippedByChildren(pWin);
+ freeTmpClip = TRUE;
+ }
+ else {
+ pregWin = &pWin->clipList;
+ freeTmpClip = FALSE;
+ }
+ freeCompClip = pGC->freeCompClip;
+
+ /*
+ * if there is no client clip, we can get by with just keeping the
+ * pointer we got, and remembering whether or not should destroy (or
+ * maybe re-use) it later. this way, we avoid unnecessary copying of
+ * regions. (this wins especially if many clients clip by children
+ * and have no client clip.)
+ */
+ if (pGC->clientClipType == CT_NONE) {
+ if (freeCompClip)
+ RegionDestroy(pGC->pCompositeClip);
+ pGC->pCompositeClip = pregWin;
+ pGC->freeCompClip = freeTmpClip;
+ }
+ else {
+ /*
+ * we need one 'real' region to put into the composite clip. if
+ * pregWin the current composite clip are real, we can get rid of
+ * one. if pregWin is real and the current composite clip isn't,
+ * use pregWin for the composite clip. if the current composite
+ * clip is real and pregWin isn't, use the current composite
+ * clip. if neither is real, create a new region.
+ */
+
+ RegionTranslate(pGC->clientClip,
+ pDrawable->x + pGC->clipOrg.x,
+ pDrawable->y + pGC->clipOrg.y);
+
+ if (freeCompClip) {
+ RegionIntersect(pGC->pCompositeClip, pregWin, pGC->clientClip);
+ if (freeTmpClip)
+ RegionDestroy(pregWin);
+ }
+ else if (freeTmpClip) {
+ RegionIntersect(pregWin, pregWin, pGC->clientClip);
+ pGC->pCompositeClip = pregWin;
+ }
+ else {
+ pGC->pCompositeClip = RegionCreate(NullBox, 0);
+ RegionIntersect(pGC->pCompositeClip, pregWin, pGC->clientClip);
+ }
+ pGC->freeCompClip = TRUE;
+ RegionTranslate(pGC->clientClip,
+ -(pDrawable->x + pGC->clipOrg.x),
+ -(pDrawable->y + pGC->clipOrg.y));
+ }
+ } /* end of composite clip for a window */
+ else {
+ BoxRec pixbounds;
+
+ /* XXX should we translate by drawable.x/y here ? */
+ /* If you want pixmaps in offscreen memory, yes */
+ pixbounds.x1 = pDrawable->x;
+ pixbounds.y1 = pDrawable->y;
+ pixbounds.x2 = pDrawable->x + pDrawable->width;
+ pixbounds.y2 = pDrawable->y + pDrawable->height;
+
+ if (pGC->freeCompClip) {
+ RegionReset(pGC->pCompositeClip, &pixbounds);
+ }
+ else {
+ pGC->freeCompClip = TRUE;
+ pGC->pCompositeClip = RegionCreate(&pixbounds, 1);
+ }
+
+ if (pGC->clientClipType == CT_REGION) {
+ if (pDrawable->x || pDrawable->y) {
+ RegionTranslate(pGC->clientClip,
+ pDrawable->x + pGC->clipOrg.x,
+ pDrawable->y + pGC->clipOrg.y);
+ RegionIntersect(pGC->pCompositeClip,
+ pGC->pCompositeClip, pGC->clientClip);
+ RegionTranslate(pGC->clientClip,
+ -(pDrawable->x + pGC->clipOrg.x),
+ -(pDrawable->y + pGC->clipOrg.y));
+ }
+ else {
+ RegionTranslate(pGC->pCompositeClip,
+ -pGC->clipOrg.x, -pGC->clipOrg.y);
+ RegionIntersect(pGC->pCompositeClip,
+ pGC->pCompositeClip, pGC->clientClip);
+ RegionTranslate(pGC->pCompositeClip,
+ pGC->clipOrg.x, pGC->clipOrg.y);
+ }
+ }
+ } /* end of composite clip for pixmap */
+} /* end miComputeCompositeClip */