585 lines
17 KiB
C
585 lines
17 KiB
C
/*
|
|
*
|
|
* 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 <stdlib.h>
|
|
|
|
#include "fb.h"
|
|
|
|
void
|
|
fbCopyNtoN(DrawablePtr pSrcDrawable,
|
|
DrawablePtr pDstDrawable,
|
|
GCPtr pGC,
|
|
BoxPtr pbox,
|
|
int nbox,
|
|
int dx,
|
|
int dy, Bool reverse, Bool upsidedown, Pixel bitplane, void *closure)
|
|
{
|
|
CARD8 alu = pGC ? pGC->alu : GXcopy;
|
|
|
|
FbBits pm = pGC ? fbGetGCPrivate(pGC)->pm : FB_ALLONES;
|
|
|
|
FbBits *src;
|
|
|
|
FbStride srcStride;
|
|
|
|
int srcBpp;
|
|
|
|
int srcXoff, srcYoff;
|
|
|
|
FbBits *dst;
|
|
|
|
FbStride dstStride;
|
|
|
|
int dstBpp;
|
|
|
|
int dstXoff, dstYoff;
|
|
|
|
fbGetDrawable(pSrcDrawable, src, srcStride, srcBpp, srcXoff, srcYoff);
|
|
fbGetDrawable(pDstDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
|
|
|
|
while (nbox--) {
|
|
fbBlt(src + (pbox->y1 + dy + srcYoff) * srcStride,
|
|
srcStride,
|
|
(pbox->x1 + dx + srcXoff) * srcBpp,
|
|
dst + (pbox->y1 + dstYoff) * dstStride,
|
|
dstStride,
|
|
(pbox->x1 + dstXoff) * dstBpp,
|
|
(pbox->x2 - pbox->x1) * dstBpp,
|
|
(pbox->y2 - pbox->y1), alu, pm, dstBpp, reverse, upsidedown);
|
|
pbox++;
|
|
}
|
|
}
|
|
|
|
void
|
|
fbCopy1toN(DrawablePtr pSrcDrawable,
|
|
DrawablePtr pDstDrawable,
|
|
GCPtr pGC,
|
|
BoxPtr pbox,
|
|
int nbox,
|
|
int dx,
|
|
int dy, Bool reverse, Bool upsidedown, Pixel bitplane, void *closure)
|
|
{
|
|
FbGCPrivPtr pPriv = fbGetGCPrivate(pGC);
|
|
|
|
FbBits *src;
|
|
|
|
FbStride srcStride;
|
|
|
|
int srcBpp;
|
|
|
|
int srcXoff, srcYoff;
|
|
|
|
FbBits *dst;
|
|
|
|
FbStride dstStride;
|
|
|
|
int dstBpp;
|
|
|
|
int dstXoff, dstYoff;
|
|
|
|
fbGetDrawable(pSrcDrawable, src, srcStride, srcBpp, srcXoff, srcYoff);
|
|
fbGetDrawable(pDstDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
|
|
|
|
while (nbox--) {
|
|
if (dstBpp == 1) {
|
|
fbBlt(src + (pbox->y1 + dy + srcYoff) * srcStride,
|
|
srcStride,
|
|
(pbox->x1 + dx + srcXoff) * srcBpp,
|
|
dst + (pbox->y1 + dstYoff) * dstStride,
|
|
dstStride,
|
|
(pbox->x1 + dstXoff) * dstBpp,
|
|
(pbox->x2 - pbox->x1) * dstBpp,
|
|
(pbox->y2 - pbox->y1),
|
|
FbOpaqueStipple1Rop(pGC->alu,
|
|
pGC->fgPixel, pGC->bgPixel),
|
|
pPriv->pm, dstBpp, reverse, upsidedown);
|
|
}
|
|
else {
|
|
fbBltOne((FbStip *) (src + (pbox->y1 + dy + srcYoff) * srcStride),
|
|
srcStride * (FB_UNIT / FB_STIP_UNIT),
|
|
(pbox->x1 + dx + srcXoff),
|
|
dst + (pbox->y1 + dstYoff) * dstStride,
|
|
dstStride,
|
|
(pbox->x1 + dstXoff) * dstBpp,
|
|
dstBpp,
|
|
(pbox->x2 - pbox->x1) * dstBpp,
|
|
(pbox->y2 - pbox->y1),
|
|
pPriv->and, pPriv->xor, pPriv->bgand, pPriv->bgxor);
|
|
}
|
|
pbox++;
|
|
}
|
|
}
|
|
|
|
void
|
|
fbCopyNto1(DrawablePtr pSrcDrawable,
|
|
DrawablePtr pDstDrawable,
|
|
GCPtr pGC,
|
|
BoxPtr pbox,
|
|
int nbox,
|
|
int dx,
|
|
int dy, Bool reverse, Bool upsidedown, Pixel bitplane, void *closure)
|
|
{
|
|
FbGCPrivPtr pPriv = fbGetGCPrivate(pGC);
|
|
|
|
while (nbox--) {
|
|
if (pDstDrawable->bitsPerPixel == 1) {
|
|
FbBits *src;
|
|
|
|
FbStride srcStride;
|
|
|
|
int srcBpp;
|
|
|
|
int srcXoff, srcYoff;
|
|
|
|
FbStip *dst;
|
|
|
|
FbStride dstStride;
|
|
|
|
int dstBpp;
|
|
|
|
int dstXoff, dstYoff;
|
|
|
|
fbGetDrawable(pSrcDrawable, src, srcStride, srcBpp, srcXoff,
|
|
srcYoff);
|
|
fbGetStipDrawable(pDstDrawable, dst, dstStride, dstBpp, dstXoff,
|
|
dstYoff);
|
|
fbBltPlane(src + (pbox->y1 + dy + srcYoff) * srcStride, srcStride,
|
|
(pbox->x1 + dx + srcXoff) * srcBpp, srcBpp,
|
|
dst + (pbox->y1 + dstYoff) * dstStride, dstStride,
|
|
(pbox->x1 + dstXoff) * dstBpp,
|
|
(pbox->x2 - pbox->x1) * srcBpp, (pbox->y2 - pbox->y1),
|
|
(FbStip) pPriv->and, (FbStip) pPriv->xor,
|
|
(FbStip) pPriv->bgand, (FbStip) pPriv->bgxor, bitplane);
|
|
}
|
|
else {
|
|
FbBits *src;
|
|
|
|
FbStride srcStride;
|
|
|
|
int srcBpp;
|
|
|
|
int srcXoff, srcYoff;
|
|
|
|
FbBits *dst;
|
|
|
|
FbStride dstStride;
|
|
|
|
int dstBpp;
|
|
|
|
int dstXoff, dstYoff;
|
|
|
|
FbStip *tmp;
|
|
|
|
FbStride tmpStride;
|
|
|
|
int width, height;
|
|
|
|
width = pbox->x2 - pbox->x1;
|
|
height = pbox->y2 - pbox->y1;
|
|
|
|
tmpStride = ((width + FB_STIP_MASK) >> FB_STIP_SHIFT);
|
|
tmp = malloc(tmpStride * height * sizeof(FbStip));
|
|
if (!tmp)
|
|
return;
|
|
|
|
fbGetDrawable(pSrcDrawable, src, srcStride, srcBpp, srcXoff,
|
|
srcYoff);
|
|
fbGetDrawable(pDstDrawable, dst, dstStride, dstBpp, dstXoff,
|
|
dstYoff);
|
|
|
|
fbBltPlane(src + (pbox->y1 + dy + srcYoff) * srcStride,
|
|
srcStride,
|
|
(pbox->x1 + dx + srcXoff) * srcBpp,
|
|
srcBpp,
|
|
tmp,
|
|
tmpStride,
|
|
0,
|
|
width * srcBpp,
|
|
height,
|
|
fbAndStip(GXcopy, FB_ALLONES, FB_ALLONES),
|
|
fbXorStip(GXcopy, FB_ALLONES, FB_ALLONES),
|
|
fbAndStip(GXcopy, 0, FB_ALLONES),
|
|
fbXorStip(GXcopy, 0, FB_ALLONES), bitplane);
|
|
fbBltOne(tmp,
|
|
tmpStride,
|
|
0,
|
|
dst + (pbox->y1 + dstYoff) * dstStride,
|
|
dstStride,
|
|
(pbox->x1 + dstXoff) * dstBpp,
|
|
dstBpp,
|
|
width * dstBpp,
|
|
height,
|
|
pPriv->and, pPriv->xor, pPriv->bgand, pPriv->bgxor);
|
|
free(tmp);
|
|
}
|
|
pbox++;
|
|
}
|
|
}
|
|
|
|
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) ALLOCATE_LOCAL(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) ALLOCATE_LOCAL(sizeof(BoxRec) * nbox);
|
|
if (!pboxNew2) {
|
|
if (pboxNew1)
|
|
DEALLOCATE_LOCAL(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)
|
|
DEALLOCATE_LOCAL(pboxNew1);
|
|
if (pboxNew2)
|
|
DEALLOCATE_LOCAL(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(
|
|
&((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(&rgnDst);
|
|
}
|
|
else {
|
|
BoxRec box;
|
|
|
|
box.x1 = box_x1;
|
|
box.y1 = box_y1;
|
|
box.x2 = box_x2;
|
|
box.y2 = box_y2;
|
|
REGION_INIT(&rgnDst, &box, 1);
|
|
}
|
|
|
|
/* Clip against complex source if needed */
|
|
if (!fastSrc) {
|
|
REGION_INTERSECT(&rgnDst, &rgnDst, prgnSrcClip);
|
|
REGION_TRANSLATE(&rgnDst, -dx, -dy);
|
|
}
|
|
|
|
/* Clip against complex dest if needed */
|
|
if (!fastDst) {
|
|
REGION_INTERSECT(&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(&rgnDst);
|
|
if (freeSrcClip)
|
|
REGION_DESTROY(prgnSrcClip);
|
|
fbValidateDrawable(pDstDrawable);
|
|
return prgnExposed;
|
|
}
|
|
|
|
RegionPtr
|
|
fbCopyArea(DrawablePtr pSrcDrawable,
|
|
DrawablePtr pDstDrawable,
|
|
GCPtr pGC,
|
|
int xIn, int yIn, int widthSrc, int heightSrc, int xOut, int yOut)
|
|
{
|
|
fbCopyProc copy;
|
|
|
|
if (pSrcDrawable->bitsPerPixel != pDstDrawable->bitsPerPixel)
|
|
copy = fb24_32CopyMtoN;
|
|
else
|
|
copy = fbCopyNtoN;
|
|
return fbDoCopy(pSrcDrawable, pDstDrawable, pGC, xIn, yIn,
|
|
widthSrc, heightSrc, xOut, yOut, copy, 0, 0);
|
|
}
|
|
|
|
RegionPtr
|
|
fbCopyPlane(DrawablePtr pSrcDrawable,
|
|
DrawablePtr pDstDrawable,
|
|
GCPtr pGC,
|
|
int xIn,
|
|
int yIn,
|
|
int widthSrc,
|
|
int heightSrc, int xOut, int yOut, unsigned long bitplane)
|
|
{
|
|
if (pSrcDrawable->bitsPerPixel > 1)
|
|
return fbDoCopy(pSrcDrawable, pDstDrawable, pGC,
|
|
xIn, yIn, widthSrc, heightSrc,
|
|
xOut, yOut, fbCopyNto1, (Pixel) bitplane, 0);
|
|
else if (bitplane & 1)
|
|
return fbDoCopy(pSrcDrawable, pDstDrawable, pGC, xIn, yIn,
|
|
widthSrc, heightSrc, xOut, yOut, fbCopy1toN,
|
|
(Pixel) bitplane, 0);
|
|
else
|
|
return miHandleExposures(pSrcDrawable, pDstDrawable, pGC,
|
|
xIn, yIn,
|
|
widthSrc, heightSrc, xOut, yOut, bitplane);
|
|
}
|