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#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include <string.h>
#include <X11/X.h>
#include "windowstr.h"
#include "pixmapstr.h"
#include "scrnintstr.h"
#include "gcstruct.h"
#include "afb.h"
#include "maskbits.h"
#include "servermd.h"
#include "mfb.h"
void
afbPutImage(pDraw, pGC, depth, x, y, width, height, leftPad, format, pImage)
DrawablePtr pDraw;
GCPtr pGC;
int depth, x, y, width, height;
int leftPad;
int format;
char *pImage;
{
PixmapPtr pPixmap;
if ((width == 0) || (height == 0))
return;
if (format != ZPixmap || depth == 1 || pDraw->depth == 1) {
pPixmap = GetScratchPixmapHeader(pDraw->pScreen, width+leftPad, height,
depth, depth,
BitmapBytePad(width+leftPad),
(pointer)pImage);
if (!pPixmap)
return;
pGC->fExpose = FALSE;
if (format == XYBitmap)
(void)(*pGC->ops->CopyPlane)((DrawablePtr)pPixmap, pDraw, pGC, leftPad,
0, width, height, x, y, 1);
else {
(void)(*pGC->ops->CopyArea)((DrawablePtr)pPixmap, pDraw, pGC, leftPad,
0, width, height, x, y);
}
pGC->fExpose = TRUE;
FreeScratchPixmapHeader(pPixmap);
} else {
/* Chunky to planar conversion required */
PixmapPtr pPixmap;
ScreenPtr pScreen = pDraw->pScreen;
int widthSrc;
int start_srcshift;
register int b;
register int dstshift;
register int shift_step;
register PixelType dst;
register PixelType srcbits;
register PixelType *pdst;
register PixelType *psrc;
int start_bit;
register int nl;
register int h;
register int d;
int sizeDst;
PixelType *pdstBase;
int widthDst;
int depthDst;
/* Create a tmp pixmap */
pPixmap = (pScreen->CreatePixmap)(pScreen, width, height, depth,
CREATE_PIXMAP_USAGE_SCRATCH);
if (!pPixmap)
return;
afbGetPixelWidthSizeDepthAndPointer((DrawablePtr)pPixmap, widthDst,
sizeDst, depthDst, pdstBase);
widthSrc = PixmapWidthInPadUnits(width, depth);
/* XXX: if depth == 8, use fast chunky to planar assembly function.*/
if (depth > 4) {
start_srcshift = 24;
shift_step = 8;
} else {
start_srcshift = 28;
shift_step = 4;
}
for (d = 0; d < depth; d++, pdstBase += sizeDst) { /* @@@ NEXT PLANE @@@ */
start_bit = start_srcshift + d;
psrc = (PixelType *)pImage;
pdst = pdstBase;
h = height;
while (h--) {
dstshift = PPW - 1;
dst = 0;
nl = widthSrc;
while (nl--) {
srcbits = *psrc++;
for (b = start_bit; b >= 0; b -= shift_step) {
dst |= ((srcbits >> b) & 1) << dstshift;
if (--dstshift < 0) {
dstshift = PPW - 1;
*pdst++ = dst;
dst = 0;
}
}
}
if (dstshift != PPW - 1)
*pdst++ = dst;
}
} /* for (d = ...) */
pGC->fExpose = FALSE;
(void)(*pGC->ops->CopyArea)((DrawablePtr)pPixmap, pDraw, pGC, leftPad, 0,
width, height, x, y);
pGC->fExpose = TRUE;
(*pScreen->DestroyPixmap)(pPixmap);
}
}
void
afbGetImage(pDrawable, sx, sy, width, height, format, planemask, pdstLine)
DrawablePtr pDrawable;
int sx, sy, width, height;
unsigned int format;
unsigned long planemask;
char *pdstLine;
{
BoxRec box;
DDXPointRec ptSrc;
RegionRec rgnDst;
ScreenPtr pScreen;
PixmapPtr pPixmap;
if ((width == 0) || (height == 0))
return;
pScreen = pDrawable->pScreen;
sx += pDrawable->x;
sy += pDrawable->y;
if (format == XYPixmap || pDrawable->depth == 1) {
pPixmap = GetScratchPixmapHeader(pScreen, width, height, 1, 1,
BitmapBytePad(width), (pointer)pdstLine);
if (!pPixmap)
return;
ptSrc.x = sx;
ptSrc.y = sy;
box.x1 = 0;
box.y1 = 0;
box.x2 = width;
box.y2 = height;
REGION_INIT(pScreen, &rgnDst, &box, 1);
pPixmap->drawable.depth = 1;
pPixmap->drawable.bitsPerPixel = 1;
/* dix layer only ever calls GetImage with 1 bit set in planemask
* when format is XYPixmap.
*/
afbDoBitblt(pDrawable, (DrawablePtr)pPixmap, GXcopy, &rgnDst, &ptSrc,
planemask);
FreeScratchPixmapHeader(pPixmap);
REGION_UNINIT(pScreen, &rgnDst);
} else {
/* Planar to chunky conversion required */
PixelType *psrcBits;
PixelType *psrcLine;
PixelType startmask, endmask;
int depthSrc;
int widthSrc;
int sizeSrc;
int sizeDst;
int widthDst;
register PixelType *psrc;
register PixelType *pdst;
register PixelType dst;
register PixelType srcbits;
register int d;
register int b;
register int dstshift;
register int shift_step;
register int start_endbit;
int start_startbit;
register int end_endbit = 0;
register int start_dstshift;
register int nl;
register int h;
int nlmiddle;
widthDst = PixmapWidthInPadUnits(width, pDrawable->depth);
sizeDst = widthDst * height;
/* Clear the dest image */
bzero(pdstLine, sizeDst << 2);
afbGetPixelWidthSizeDepthAndPointer(pDrawable, widthSrc, sizeSrc,
depthSrc, psrcBits);
psrcBits = afbScanline(psrcBits, sx, sy, widthSrc);
start_startbit = PPW - 1 - (sx & PIM);
if ((sx & PIM) + width < PPW) {
maskpartialbits(sx, width, startmask);
nlmiddle = 0;
endmask = 0;
start_endbit = PPW - ((sx + width) & PIM);
} else {
maskbits(sx, width, startmask, endmask, nlmiddle);
start_endbit = 0;
end_endbit = PPW - ((sx + width) & PIM);
}
/* ZPixmap images have either 4 or 8 bits per pixel dependent on
* depth.
*/
if (depthSrc > 4) {
start_dstshift = 24;
shift_step = 8;
} else {
start_dstshift = 28;
shift_step = 4;
}
#define SHIFT_BITS(start_bit,end_bit) \
for (b = (start_bit); b >= (end_bit); b--) { \
dst |= ((srcbits >> b) & 1) << dstshift; \
if ((dstshift -= shift_step) < 0) { \
dstshift = start_dstshift + d; \
*pdst++ = dst; \
dst = *pdst; \
} \
} \
for (d = 0; d < depthSrc; d++, psrcBits += sizeSrc) { /* @@@ NEXT PLANE @@@ */
psrcLine = psrcBits;
pdst = (PixelType *)pdstLine;
h = height;
while (h--) {
psrc = psrcLine;
psrcLine += widthSrc;
dst = *pdst;
dstshift = start_dstshift + d;
if (startmask) {
srcbits = *psrc++ & startmask;
SHIFT_BITS(start_startbit, start_endbit);
}
nl = nlmiddle;
while (nl--) {
srcbits = *psrc++;
SHIFT_BITS(PPW - 1, 0);
}
if (endmask) {
srcbits = *psrc & endmask;
SHIFT_BITS(PPW - 1, end_endbit);
}
if (dstshift != start_dstshift + d)
*pdst++ = dst;
} /* while (h--) */
} /* for (d = ...) */
}
}
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