[PATCH 8/9] fb: move some code to mi
Maarten Maathuis
madman2003 at gmail.com
Thu Feb 5 08:15:09 PST 2009
---
exa/exa_accel.c | 4 +-
fb/fb.h | 37 ------
fb/fbcopy.c | 331 +--------------------------------------------------
fb/fboverlay.c | 2 +-
fb/fboverlay.h | 2 +-
fb/fbwindow.c | 2 +-
mi/Makefile.am | 1 +
mi/mi.h | 42 +++++++
mi/micopy.c | 354 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
9 files changed, 406 insertions(+), 369 deletions(-)
create mode 100644 mi/micopy.c
diff --git a/exa/exa_accel.c b/exa/exa_accel.c
index 02858f1..cc5dd18 100644
--- a/exa/exa_accel.c
+++ b/exa/exa_accel.c
@@ -524,7 +524,7 @@ exaCopyArea(DrawablePtr pSrcDrawable, DrawablePtr pDstDrawable, GCPtr pGC,
srcx, srcy, width, height, dstx, dsty);
}
- return fbDoCopy (pSrcDrawable, pDstDrawable, pGC,
+ return miDoCopy (pSrcDrawable, pDstDrawable, pGC,
srcx, srcy, width, height,
dstx, dsty, exaCopyNtoN, 0, NULL);
}
@@ -879,7 +879,7 @@ exaCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
-pPixmap->screen_x, -pPixmap->screen_y);
#endif
- fbCopyRegion (&pPixmap->drawable, &pPixmap->drawable,
+ miCopyRegion (&pPixmap->drawable, &pPixmap->drawable,
NULL,
&rgnDst, dx, dy, exaCopyNtoN, 0, NULL);
diff --git a/fb/fb.h b/fb/fb.h
index 8384315..cadb9a0 100644
--- a/fb/fb.h
+++ b/fb/fb.h
@@ -1306,18 +1306,6 @@ fbInitVisuals (VisualPtr *visualp,
* fbcopy.c
*/
-typedef void (*fbCopyProc) (DrawablePtr pSrcDrawable,
- DrawablePtr pDstDrawable,
- GCPtr pGC,
- BoxPtr pDstBox,
- int nbox,
- int dx,
- int dy,
- Bool reverse,
- Bool upsidedown,
- Pixel bitplane,
- void *closure);
-
extern _X_EXPORT void
fbCopyNtoN (DrawablePtr pSrcDrawable,
DrawablePtr pDstDrawable,
@@ -1357,31 +1345,6 @@ fbCopyNto1 (DrawablePtr pSrcDrawable,
Pixel bitplane,
void *closure);
-extern _X_EXPORT void
-fbCopyRegion (DrawablePtr pSrcDrawable,
- DrawablePtr pDstDrawable,
- GCPtr pGC,
- RegionPtr pDstRegion,
- int dx,
- int dy,
- fbCopyProc copyProc,
- Pixel bitPlane,
- void *closure);
-
-extern _X_EXPORT RegionPtr
-fbDoCopy (DrawablePtr pSrcDrawable,
- DrawablePtr pDstDrawable,
- GCPtr pGC,
- int xIn,
- int yIn,
- int widthSrc,
- int heightSrc,
- int xOut,
- int yOut,
- fbCopyProc copyProc,
- Pixel bitplane,
- void *closure);
-
extern _X_EXPORT RegionPtr
fbCopyArea (DrawablePtr pSrcDrawable,
DrawablePtr pDstDrawable,
diff --git a/fb/fbcopy.c b/fb/fbcopy.c
index b8b0b6a..fed87a5 100644
--- a/fb/fbcopy.c
+++ b/fb/fbcopy.c
@@ -289,329 +289,6 @@ fbCopyNto1 (DrawablePtr pSrcDrawable,
}
}
-void
-fbCopyRegion (DrawablePtr pSrcDrawable,
- DrawablePtr pDstDrawable,
- GCPtr pGC,
- RegionPtr pDstRegion,
- int dx,
- int dy,
- fbCopyProc copyProc,
- Pixel bitPlane,
- void *closure)
-{
- int careful;
- Bool reverse;
- Bool upsidedown;
- BoxPtr pbox;
- int nbox;
- BoxPtr pboxNew1, pboxNew2, pboxBase, pboxNext, pboxTmp;
-
- pbox = REGION_RECTS(pDstRegion);
- nbox = REGION_NUM_RECTS(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)xalloc(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)xalloc(sizeof(BoxRec) * nbox);
- if(!pboxNew2)
- {
- if (pboxNew1)
- xfree(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);
-
- if (pboxNew1)
- xfree (pboxNew1);
- if (pboxNew2)
- xfree (pboxNew2);
-}
-
-RegionPtr
-fbDoCopy (DrawablePtr pSrcDrawable,
- DrawablePtr pDstDrawable,
- GCPtr pGC,
- int xIn,
- int yIn,
- int widthSrc,
- int heightSrc,
- int xOut,
- int yOut,
- fbCopyProc 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 != pDstDrawable) &&
- pSrcDrawable->pScreen->SourceValidate)
- {
- (*pSrcDrawable->pScreen->SourceValidate) (pSrcDrawable, xIn, yIn, widthSrc, heightSrc);
- }
-
- /* Compute source clip region */
- if (pSrcDrawable->type == DRAWABLE_PIXMAP)
- {
- if ((pSrcDrawable == pDstDrawable) && (pGC->clientClipType == CT_NONE))
- prgnSrcClip = fbGetCompositeClip(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 &&
- REGION_NOTEMPTY (pSrcDrawable->pScreen,
- &((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 = fbGetCompositeClip(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 = fbGetCompositeClip(pGC);
- if (REGION_NUM_RECTS(cclip) == 1)
- {
- BoxPtr pBox = REGION_RECTS(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)
- {
- REGION_NULL(pGC->pScreen, &rgnDst);
- }
- else
- {
- BoxRec box;
- box.x1 = box_x1;
- box.y1 = box_y1;
- box.x2 = box_x2;
- box.y2 = box_y2;
- REGION_INIT(pGC->pScreen, &rgnDst, &box, 1);
- }
-
- /* Clip against complex source if needed */
- if (!fastSrc)
- {
- REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst, prgnSrcClip);
- REGION_TRANSLATE(pGC->pScreen, &rgnDst, -dx, -dy);
- }
-
- /* Clip against complex dest if needed */
- if (!fastDst)
- {
- REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst,
- fbGetCompositeClip(pGC));
- }
-
- /* Do bit blitting */
- numRects = REGION_NUM_RECTS(&rgnDst);
- if (numRects && widthSrc && heightSrc)
- fbCopyRegion (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);
- REGION_UNINIT(pGC->pScreen, &rgnDst);
- if (freeSrcClip)
- REGION_DESTROY(pGC->pScreen, prgnSrcClip);
- fbValidateDrawable (pDstDrawable);
- return prgnExposed;
-}
-
RegionPtr
fbCopyArea (DrawablePtr pSrcDrawable,
DrawablePtr pDstDrawable,
@@ -623,7 +300,7 @@ fbCopyArea (DrawablePtr pSrcDrawable,
int xOut,
int yOut)
{
- fbCopyProc copy;
+ miCopyProc copy;
#ifdef FB_24_32BIT
if (pSrcDrawable->bitsPerPixel != pDstDrawable->bitsPerPixel)
@@ -631,7 +308,7 @@ fbCopyArea (DrawablePtr pSrcDrawable,
else
#endif
copy = fbCopyNtoN;
- return fbDoCopy (pSrcDrawable, pDstDrawable, pGC, xIn, yIn,
+ return miDoCopy (pSrcDrawable, pDstDrawable, pGC, xIn, yIn,
widthSrc, heightSrc, xOut, yOut, copy, 0, 0);
}
@@ -648,11 +325,11 @@ fbCopyPlane (DrawablePtr pSrcDrawable,
unsigned long bitplane)
{
if (pSrcDrawable->bitsPerPixel > 1)
- return fbDoCopy (pSrcDrawable, pDstDrawable, pGC,
+ return miDoCopy (pSrcDrawable, pDstDrawable, pGC,
xIn, yIn, widthSrc, heightSrc,
xOut, yOut, fbCopyNto1, (Pixel) bitplane, 0);
else if (bitplane & 1)
- return fbDoCopy (pSrcDrawable, pDstDrawable, pGC, xIn, yIn,
+ return miDoCopy (pSrcDrawable, pDstDrawable, pGC, xIn, yIn,
widthSrc, heightSrc, xOut, yOut, fbCopy1toN,
(Pixel) bitplane, 0);
else
diff --git a/fb/fboverlay.c b/fb/fboverlay.c
index 1432cb6..99939e8 100644
--- a/fb/fboverlay.c
+++ b/fb/fboverlay.c
@@ -248,7 +248,7 @@ fbOverlayCopyWindow(WindowPtr pWin,
{
REGION_TRANSLATE(pScreen, &layerRgn[i], -dx, -dy);
pPixmap = pScrPriv->layer[i].u.run.pixmap;
- fbCopyRegion (&pPixmap->drawable, &pPixmap->drawable,
+ miCopyRegion (&pPixmap->drawable, &pPixmap->drawable,
0,
&layerRgn[i], dx, dy, pScrPriv->CopyWindow, 0,
(void *)(long) i);
diff --git a/fb/fboverlay.h b/fb/fboverlay.h
index ed355af..b626a77 100644
--- a/fb/fboverlay.h
+++ b/fb/fboverlay.h
@@ -53,7 +53,7 @@ typedef struct _fbOverlayLayer {
typedef struct _fbOverlayScrPriv {
int nlayers;
fbOverlayPaintKeyProc PaintKey;
- fbCopyProc CopyWindow;
+ miCopyProc CopyWindow;
FbOverlayLayer layer[FB_OVERLAY_MAX];
} FbOverlayScrPrivRec, *FbOverlayScrPrivPtr;
diff --git a/fb/fbwindow.c b/fb/fbwindow.c
index 022a16f..46c0334 100644
--- a/fb/fbwindow.c
+++ b/fb/fbwindow.c
@@ -140,7 +140,7 @@ fbCopyWindow(WindowPtr pWin,
-pPixmap->screen_x, -pPixmap->screen_y);
#endif
- fbCopyRegion (pDrawable, pDrawable,
+ miCopyRegion (pDrawable, pDrawable,
0,
&rgnDst, dx, dy, fbCopyWindowProc, 0, 0);
diff --git a/mi/Makefile.am b/mi/Makefile.am
index e6a4e60..979cc39 100644
--- a/mi/Makefile.am
+++ b/mi/Makefile.am
@@ -20,6 +20,7 @@ libmi_la_SOURCES = \
micmap.c \
micmap.h \
micoord.h \
+ micopy.c \
micursor.c \
midash.c \
midispcur.c \
diff --git a/mi/mi.h b/mi/mi.h
index 23f9abb..c44ff06 100644
--- a/mi/mi.h
+++ b/mi/mi.h
@@ -56,6 +56,7 @@ SOFTWARE.
#include "input.h"
#include "cursor.h"
#include "privates.h"
+#include "colormap.h"
#define MiBits CARD32
@@ -123,6 +124,47 @@ extern _X_EXPORT void miPutImage(
char * /*pImage*/
);
+/* micopy.c */
+
+#define miGetCompositeClip(pGC) ((pGC)->pCompositeClip)
+
+typedef void (*miCopyProc) (DrawablePtr pSrcDrawable,
+ DrawablePtr pDstDrawable,
+ GCPtr pGC,
+ BoxPtr pDstBox,
+ int nbox,
+ int dx,
+ int dy,
+ Bool reverse,
+ Bool upsidedown,
+ Pixel bitplane,
+ void *closure);
+
+extern _X_EXPORT void
+miCopyRegion (DrawablePtr pSrcDrawable,
+ DrawablePtr pDstDrawable,
+ GCPtr pGC,
+ RegionPtr pDstRegion,
+ int dx,
+ int dy,
+ miCopyProc copyProc,
+ Pixel bitPlane,
+ void *closure);
+
+extern _X_EXPORT 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);
+
/* micursor.c */
extern _X_EXPORT void miRecolorCursor(
diff --git a/mi/micopy.c b/mi/micopy.c
new file mode 100644
index 0000000..3719f46
--- /dev/null
+++ b/mi/micopy.c
@@ -0,0 +1,354 @@
+/*
+ * 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 = REGION_RECTS(pDstRegion);
+ nbox = REGION_NUM_RECTS(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)xalloc(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)xalloc(sizeof(BoxRec) * nbox);
+ if(!pboxNew2)
+ {
+ if (pboxNew1)
+ xfree(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);
+
+ if (pboxNew1)
+ xfree (pboxNew1);
+ if (pboxNew2)
+ xfree (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 != pDstDrawable) &&
+ pSrcDrawable->pScreen->SourceValidate)
+ {
+ (*pSrcDrawable->pScreen->SourceValidate) (pSrcDrawable, xIn, yIn, widthSrc, heightSrc);
+ }
+
+ /* 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 &&
+ REGION_NOTEMPTY (pSrcDrawable->pScreen,
+ &((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 (REGION_NUM_RECTS(cclip) == 1)
+ {
+ BoxPtr pBox = REGION_RECTS(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)
+ {
+ REGION_NULL(pGC->pScreen, &rgnDst);
+ }
+ else
+ {
+ BoxRec box;
+ box.x1 = box_x1;
+ box.y1 = box_y1;
+ box.x2 = box_x2;
+ box.y2 = box_y2;
+ REGION_INIT(pGC->pScreen, &rgnDst, &box, 1);
+ }
+
+ /* Clip against complex source if needed */
+ if (!fastSrc)
+ {
+ REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst, prgnSrcClip);
+ REGION_TRANSLATE(pGC->pScreen, &rgnDst, -dx, -dy);
+ }
+
+ /* Clip against complex dest if needed */
+ if (!fastDst)
+ {
+ REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst,
+ miGetCompositeClip(pGC));
+ }
+
+ /* Do bit blitting */
+ numRects = REGION_NUM_RECTS(&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);
+ REGION_UNINIT(pGC->pScreen, &rgnDst);
+ if (freeSrcClip)
+ REGION_DESTROY(pGC->pScreen, prgnSrcClip);
+ return prgnExposed;
+}
--
1.6.1.1
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