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-rw-r--r--xorg-server/mi/micopy.c663
1 files changed, 313 insertions, 350 deletions
diff --git a/xorg-server/mi/micopy.c b/xorg-server/mi/micopy.c
index ce01249e8..30795114d 100644
--- a/xorg-server/mi/micopy.c
+++ b/xorg-server/mi/micopy.c
@@ -1,350 +1,313 @@
-/*
- * Copyright © 1998 Keith Packard
- *
- * 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
-
-#include "mi.h"
-#include "scrnintstr.h"
-#include "gcstruct.h"
-#include "pixmap.h"
-#include "pixmapstr.h"
-#include "windowstr.h"
-
-void
-miCopyRegion (DrawablePtr pSrcDrawable,
- DrawablePtr pDstDrawable,
- GCPtr pGC,
- RegionPtr pDstRegion,
- int dx,
- int dy,
- miCopyProc copyProc,
- Pixel bitPlane,
- void *closure)
-{
- int careful;
- Bool reverse;
- Bool upsidedown;
- BoxPtr pbox;
- int nbox;
- BoxPtr pboxNew1, pboxNew2, pboxBase, pboxNext, pboxTmp;
-
- pbox = RegionRects(pDstRegion);
- nbox = RegionNumRects(pDstRegion);
-
- /* XXX we have to err on the side of safety when both are windows,
- * because we don't know if IncludeInferiors is being used.
- */
- careful = ((pSrcDrawable == pDstDrawable) ||
- ((pSrcDrawable->type == DRAWABLE_WINDOW) &&
- (pDstDrawable->type == DRAWABLE_WINDOW)));
-
- pboxNew1 = NULL;
- pboxNew2 = NULL;
- if (careful && dy < 0)
- {
- upsidedown = TRUE;
-
- if (nbox > 1)
- {
- /* keep ordering in each band, reverse order of bands */
- pboxNew1 = (BoxPtr)malloc(sizeof(BoxRec) * nbox);
- if(!pboxNew1)
- return;
- pboxBase = pboxNext = pbox+nbox-1;
- while (pboxBase >= pbox)
- {
- while ((pboxNext >= pbox) &&
- (pboxBase->y1 == pboxNext->y1))
- pboxNext--;
- pboxTmp = pboxNext+1;
- while (pboxTmp <= pboxBase)
- {
- *pboxNew1++ = *pboxTmp++;
- }
- pboxBase = pboxNext;
- }
- pboxNew1 -= nbox;
- pbox = pboxNew1;
- }
- }
- else
- {
- /* walk source top to bottom */
- upsidedown = FALSE;
- }
-
- if (careful && dx < 0)
- {
- /* walk source right to left */
- if (dy <= 0)
- reverse = TRUE;
- else
- reverse = FALSE;
-
- if (nbox > 1)
- {
- /* reverse order of rects in each band */
- pboxNew2 = (BoxPtr)malloc(sizeof(BoxRec) * nbox);
- if(!pboxNew2)
- {
- free(pboxNew1);
- return;
- }
- pboxBase = pboxNext = pbox;
- while (pboxBase < pbox+nbox)
- {
- while ((pboxNext < pbox+nbox) &&
- (pboxNext->y1 == pboxBase->y1))
- pboxNext++;
- pboxTmp = pboxNext;
- while (pboxTmp != pboxBase)
- {
- *pboxNew2++ = *--pboxTmp;
- }
- pboxBase = pboxNext;
- }
- pboxNew2 -= nbox;
- pbox = pboxNew2;
- }
- }
- else
- {
- /* walk source left to right */
- reverse = FALSE;
- }
-
- (*copyProc) (pSrcDrawable,
- pDstDrawable,
- pGC,
- pbox,
- nbox,
- dx, dy,
- reverse, upsidedown, bitPlane, closure);
-
- free(pboxNew1);
- free(pboxNew2);
-}
-
-RegionPtr
-miDoCopy (DrawablePtr pSrcDrawable,
- DrawablePtr pDstDrawable,
- GCPtr pGC,
- int xIn,
- int yIn,
- int widthSrc,
- int heightSrc,
- int xOut,
- int yOut,
- miCopyProc copyProc,
- Pixel bitPlane,
- void *closure)
-{
- RegionPtr prgnSrcClip = NULL; /* may be a new region, or just a copy */
- Bool freeSrcClip = FALSE;
- RegionPtr prgnExposed = NULL;
- RegionRec rgnDst;
- int dx;
- int dy;
- int numRects;
- int box_x1;
- int box_y1;
- int box_x2;
- int box_y2;
- Bool fastSrc = FALSE; /* for fast clipping with pixmap source */
- Bool fastDst = FALSE; /* for fast clipping with one rect dest */
- Bool fastExpose = FALSE; /* for fast exposures with pixmap source */
-
- /* Short cut for unmapped windows */
-
- if (pDstDrawable->type == DRAWABLE_WINDOW &&
- !((WindowPtr)pDstDrawable)->realized)
- {
- return NULL;
- }
-
- if (pSrcDrawable->pScreen->SourceValidate)
- {
- (*pSrcDrawable->pScreen->SourceValidate) (pSrcDrawable, xIn, yIn, widthSrc, heightSrc,
- pGC->subWindowMode);
- }
-
- /* Compute source clip region */
- if (pSrcDrawable->type == DRAWABLE_PIXMAP)
- {
- if ((pSrcDrawable == pDstDrawable) && (pGC->clientClipType == CT_NONE))
- prgnSrcClip = miGetCompositeClip(pGC);
- else
- fastSrc = TRUE;
- }
- else
- {
- if (pGC->subWindowMode == IncludeInferiors)
- {
- /*
- * XFree86 DDX empties the border clip when the
- * VT is inactive, make sure the region isn't empty
- */
- if (!((WindowPtr) pSrcDrawable)->parent &&
- RegionNotEmpty(&((WindowPtr) pSrcDrawable)->borderClip))
- {
- /*
- * special case bitblt from root window in
- * IncludeInferiors mode; just like from a pixmap
- */
- fastSrc = TRUE;
- }
- else if ((pSrcDrawable == pDstDrawable) &&
- (pGC->clientClipType == CT_NONE))
- {
- prgnSrcClip = miGetCompositeClip(pGC);
- }
- else
- {
- prgnSrcClip = NotClippedByChildren((WindowPtr)pSrcDrawable);
- freeSrcClip = TRUE;
- }
- }
- else
- {
- prgnSrcClip = &((WindowPtr)pSrcDrawable)->clipList;
- }
- }
-
- xIn += pSrcDrawable->x;
- yIn += pSrcDrawable->y;
-
- xOut += pDstDrawable->x;
- yOut += pDstDrawable->y;
-
- box_x1 = xIn;
- box_y1 = yIn;
- box_x2 = xIn + widthSrc;
- box_y2 = yIn + heightSrc;
-
- dx = xIn - xOut;
- dy = yIn - yOut;
-
- /* Don't create a source region if we are doing a fast clip */
- if (fastSrc)
- {
- RegionPtr cclip;
-
- fastExpose = TRUE;
- /*
- * clip the source; if regions extend beyond the source size,
- * make sure exposure events get sent
- */
- if (box_x1 < pSrcDrawable->x)
- {
- box_x1 = pSrcDrawable->x;
- fastExpose = FALSE;
- }
- if (box_y1 < pSrcDrawable->y)
- {
- box_y1 = pSrcDrawable->y;
- fastExpose = FALSE;
- }
- if (box_x2 > pSrcDrawable->x + (int) pSrcDrawable->width)
- {
- box_x2 = pSrcDrawable->x + (int) pSrcDrawable->width;
- fastExpose = FALSE;
- }
- if (box_y2 > pSrcDrawable->y + (int) pSrcDrawable->height)
- {
- box_y2 = pSrcDrawable->y + (int) pSrcDrawable->height;
- fastExpose = FALSE;
- }
-
- /* Translate and clip the dst to the destination composite clip */
- box_x1 -= dx;
- box_x2 -= dx;
- box_y1 -= dy;
- box_y2 -= dy;
-
- /* If the destination composite clip is one rectangle we can
- do the clip directly. Otherwise we have to create a full
- blown region and call intersect */
-
- cclip = miGetCompositeClip(pGC);
- if (RegionNumRects(cclip) == 1)
- {
- BoxPtr pBox = RegionRects(cclip);
-
- if (box_x1 < pBox->x1) box_x1 = pBox->x1;
- if (box_x2 > pBox->x2) box_x2 = pBox->x2;
- if (box_y1 < pBox->y1) box_y1 = pBox->y1;
- if (box_y2 > pBox->y2) box_y2 = pBox->y2;
- fastDst = TRUE;
- }
- }
-
- /* Check to see if the region is empty */
- if (box_x1 >= box_x2 || box_y1 >= box_y2)
- {
- RegionNull(&rgnDst);
- }
- else
- {
- BoxRec box;
- box.x1 = box_x1;
- box.y1 = box_y1;
- box.x2 = box_x2;
- box.y2 = box_y2;
- RegionInit(&rgnDst, &box, 1);
- }
-
- /* Clip against complex source if needed */
- if (!fastSrc)
- {
- RegionIntersect(&rgnDst, &rgnDst, prgnSrcClip);
- RegionTranslate(&rgnDst, -dx, -dy);
- }
-
- /* Clip against complex dest if needed */
- if (!fastDst)
- {
- RegionIntersect(&rgnDst, &rgnDst,
- miGetCompositeClip(pGC));
- }
-
- /* Do bit blitting */
- numRects = RegionNumRects(&rgnDst);
- if (numRects && widthSrc && heightSrc)
- miCopyRegion (pSrcDrawable, pDstDrawable, pGC,
- &rgnDst, dx, dy, copyProc, bitPlane, closure);
-
- /* Pixmap sources generate a NoExposed (we return NULL to do this) */
- if (!fastExpose && pGC->fExpose)
- prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC,
- xIn - pSrcDrawable->x,
- yIn - pSrcDrawable->y,
- widthSrc, heightSrc,
- xOut - pDstDrawable->x,
- yOut - pDstDrawable->y,
- (unsigned long) bitPlane);
- RegionUninit(&rgnDst);
- if (freeSrcClip)
- RegionDestroy(prgnSrcClip);
- return prgnExposed;
-}
+/*
+ * Copyright © 1998 Keith Packard
+ *
+ * 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
+
+#include "mi.h"
+#include "scrnintstr.h"
+#include "gcstruct.h"
+#include "pixmap.h"
+#include "pixmapstr.h"
+#include "windowstr.h"
+
+void
+miCopyRegion(DrawablePtr pSrcDrawable,
+ DrawablePtr pDstDrawable,
+ GCPtr pGC,
+ RegionPtr pDstRegion,
+ int dx, int dy, miCopyProc copyProc, Pixel bitPlane, void *closure)
+{
+ int careful;
+ Bool reverse;
+ Bool upsidedown;
+ BoxPtr pbox;
+ int nbox;
+ BoxPtr pboxNew1, pboxNew2, pboxBase, pboxNext, pboxTmp;
+
+ pbox = RegionRects(pDstRegion);
+ nbox = RegionNumRects(pDstRegion);
+
+ /* XXX we have to err on the side of safety when both are windows,
+ * because we don't know if IncludeInferiors is being used.
+ */
+ careful = ((pSrcDrawable == pDstDrawable) ||
+ ((pSrcDrawable->type == DRAWABLE_WINDOW) &&
+ (pDstDrawable->type == DRAWABLE_WINDOW)));
+
+ pboxNew1 = NULL;
+ pboxNew2 = NULL;
+ if (careful && dy < 0) {
+ upsidedown = TRUE;
+
+ if (nbox > 1) {
+ /* keep ordering in each band, reverse order of bands */
+ pboxNew1 = (BoxPtr) malloc(sizeof(BoxRec) * nbox);
+ if (!pboxNew1)
+ return;
+ pboxBase = pboxNext = pbox + nbox - 1;
+ while (pboxBase >= pbox) {
+ while ((pboxNext >= pbox) && (pboxBase->y1 == pboxNext->y1))
+ pboxNext--;
+ pboxTmp = pboxNext + 1;
+ while (pboxTmp <= pboxBase) {
+ *pboxNew1++ = *pboxTmp++;
+ }
+ pboxBase = pboxNext;
+ }
+ pboxNew1 -= nbox;
+ pbox = pboxNew1;
+ }
+ }
+ else {
+ /* walk source top to bottom */
+ upsidedown = FALSE;
+ }
+
+ if (careful && dx < 0) {
+ /* walk source right to left */
+ if (dy <= 0)
+ reverse = TRUE;
+ else
+ reverse = FALSE;
+
+ if (nbox > 1) {
+ /* reverse order of rects in each band */
+ pboxNew2 = (BoxPtr) malloc(sizeof(BoxRec) * nbox);
+ if (!pboxNew2) {
+ free(pboxNew1);
+ return;
+ }
+ pboxBase = pboxNext = pbox;
+ while (pboxBase < pbox + nbox) {
+ while ((pboxNext < pbox + nbox) &&
+ (pboxNext->y1 == pboxBase->y1))
+ pboxNext++;
+ pboxTmp = pboxNext;
+ while (pboxTmp != pboxBase) {
+ *pboxNew2++ = *--pboxTmp;
+ }
+ pboxBase = pboxNext;
+ }
+ pboxNew2 -= nbox;
+ pbox = pboxNew2;
+ }
+ }
+ else {
+ /* walk source left to right */
+ reverse = FALSE;
+ }
+
+ (*copyProc) (pSrcDrawable,
+ pDstDrawable,
+ pGC,
+ pbox, nbox, dx, dy, reverse, upsidedown, bitPlane, closure);
+
+ free(pboxNew1);
+ free(pboxNew2);
+}
+
+RegionPtr
+miDoCopy(DrawablePtr pSrcDrawable,
+ DrawablePtr pDstDrawable,
+ GCPtr pGC,
+ int xIn,
+ int yIn,
+ int widthSrc,
+ int heightSrc,
+ int xOut, int yOut, miCopyProc copyProc, Pixel bitPlane, void *closure)
+{
+ RegionPtr prgnSrcClip = NULL; /* may be a new region, or just a copy */
+ Bool freeSrcClip = FALSE;
+ RegionPtr prgnExposed = NULL;
+ RegionRec rgnDst;
+ int dx;
+ int dy;
+ int numRects;
+ int box_x1;
+ int box_y1;
+ int box_x2;
+ int box_y2;
+ Bool fastSrc = FALSE; /* for fast clipping with pixmap source */
+ Bool fastDst = FALSE; /* for fast clipping with one rect dest */
+ Bool fastExpose = FALSE; /* for fast exposures with pixmap source */
+
+ /* Short cut for unmapped windows */
+
+ if (pDstDrawable->type == DRAWABLE_WINDOW &&
+ !((WindowPtr) pDstDrawable)->realized) {
+ return NULL;
+ }
+
+ if (pSrcDrawable->pScreen->SourceValidate) {
+ (*pSrcDrawable->pScreen->SourceValidate) (pSrcDrawable, xIn, yIn,
+ widthSrc, heightSrc,
+ pGC->subWindowMode);
+ }
+
+ /* Compute source clip region */
+ if (pSrcDrawable->type == DRAWABLE_PIXMAP) {
+ if ((pSrcDrawable == pDstDrawable) && (pGC->clientClipType == CT_NONE))
+ prgnSrcClip = miGetCompositeClip(pGC);
+ else
+ fastSrc = TRUE;
+ }
+ else {
+ if (pGC->subWindowMode == IncludeInferiors) {
+ /*
+ * XFree86 DDX empties the border clip when the
+ * VT is inactive, make sure the region isn't empty
+ */
+ if (!((WindowPtr) pSrcDrawable)->parent &&
+ RegionNotEmpty(&((WindowPtr) pSrcDrawable)->borderClip)) {
+ /*
+ * special case bitblt from root window in
+ * IncludeInferiors mode; just like from a pixmap
+ */
+ fastSrc = TRUE;
+ }
+ else if ((pSrcDrawable == pDstDrawable) &&
+ (pGC->clientClipType == CT_NONE)) {
+ prgnSrcClip = miGetCompositeClip(pGC);
+ }
+ else {
+ prgnSrcClip = NotClippedByChildren((WindowPtr) pSrcDrawable);
+ freeSrcClip = TRUE;
+ }
+ }
+ else {
+ prgnSrcClip = &((WindowPtr) pSrcDrawable)->clipList;
+ }
+ }
+
+ xIn += pSrcDrawable->x;
+ yIn += pSrcDrawable->y;
+
+ xOut += pDstDrawable->x;
+ yOut += pDstDrawable->y;
+
+ box_x1 = xIn;
+ box_y1 = yIn;
+ box_x2 = xIn + widthSrc;
+ box_y2 = yIn + heightSrc;
+
+ dx = xIn - xOut;
+ dy = yIn - yOut;
+
+ /* Don't create a source region if we are doing a fast clip */
+ if (fastSrc) {
+ RegionPtr cclip;
+
+ fastExpose = TRUE;
+ /*
+ * clip the source; if regions extend beyond the source size,
+ * make sure exposure events get sent
+ */
+ if (box_x1 < pSrcDrawable->x) {
+ box_x1 = pSrcDrawable->x;
+ fastExpose = FALSE;
+ }
+ if (box_y1 < pSrcDrawable->y) {
+ box_y1 = pSrcDrawable->y;
+ fastExpose = FALSE;
+ }
+ if (box_x2 > pSrcDrawable->x + (int) pSrcDrawable->width) {
+ box_x2 = pSrcDrawable->x + (int) pSrcDrawable->width;
+ fastExpose = FALSE;
+ }
+ if (box_y2 > pSrcDrawable->y + (int) pSrcDrawable->height) {
+ box_y2 = pSrcDrawable->y + (int) pSrcDrawable->height;
+ fastExpose = FALSE;
+ }
+
+ /* Translate and clip the dst to the destination composite clip */
+ box_x1 -= dx;
+ box_x2 -= dx;
+ box_y1 -= dy;
+ box_y2 -= dy;
+
+ /* If the destination composite clip is one rectangle we can
+ do the clip directly. Otherwise we have to create a full
+ blown region and call intersect */
+
+ cclip = miGetCompositeClip(pGC);
+ if (RegionNumRects(cclip) == 1) {
+ BoxPtr pBox = RegionRects(cclip);
+
+ if (box_x1 < pBox->x1)
+ box_x1 = pBox->x1;
+ if (box_x2 > pBox->x2)
+ box_x2 = pBox->x2;
+ if (box_y1 < pBox->y1)
+ box_y1 = pBox->y1;
+ if (box_y2 > pBox->y2)
+ box_y2 = pBox->y2;
+ fastDst = TRUE;
+ }
+ }
+
+ /* Check to see if the region is empty */
+ if (box_x1 >= box_x2 || box_y1 >= box_y2) {
+ RegionNull(&rgnDst);
+ }
+ else {
+ BoxRec box;
+
+ box.x1 = box_x1;
+ box.y1 = box_y1;
+ box.x2 = box_x2;
+ box.y2 = box_y2;
+ RegionInit(&rgnDst, &box, 1);
+ }
+
+ /* Clip against complex source if needed */
+ if (!fastSrc) {
+ RegionIntersect(&rgnDst, &rgnDst, prgnSrcClip);
+ RegionTranslate(&rgnDst, -dx, -dy);
+ }
+
+ /* Clip against complex dest if needed */
+ if (!fastDst) {
+ RegionIntersect(&rgnDst, &rgnDst, miGetCompositeClip(pGC));
+ }
+
+ /* Do bit blitting */
+ numRects = RegionNumRects(&rgnDst);
+ if (numRects && widthSrc && heightSrc)
+ miCopyRegion(pSrcDrawable, pDstDrawable, pGC,
+ &rgnDst, dx, dy, copyProc, bitPlane, closure);
+
+ /* Pixmap sources generate a NoExposed (we return NULL to do this) */
+ if (!fastExpose && pGC->fExpose)
+ prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC,
+ xIn - pSrcDrawable->x,
+ yIn - pSrcDrawable->y,
+ widthSrc, heightSrc,
+ xOut - pDstDrawable->x,
+ yOut - pDstDrawable->y,
+ (unsigned long) bitPlane);
+ RegionUninit(&rgnDst);
+ if (freeSrcClip)
+ RegionDestroy(prgnSrcClip);
+ return prgnExposed;
+}
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