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xserver-multidpi/hw/xfree86/xaa/xaaCpyArea.c
Keith Packard 2dc138922b Rename region macros to eliminate screen argument 
This is a combination of a huge mechanical patch and a few small
fixups required to finish the job. They were reviewed separately, but
because the server does not build without both pieces, I've merged
them together at this time.

The mechanical changes were performed by running the included
'fix-region' script over the whole tree:

$ git ls-files | grep -v '^fix-' | xargs ./fix-region

And then, the white space errors in the resulting patch were fixed
using the provided fix-patch-whitespace script.

$ sh ./fix-patch-whitespace

Thanks to Jamey Sharp for the mighty fine sed-generating sed script.

The hand-done changes involve removing functions from dix/region.c
that duplicate inline functions in include/regionstr.h, along with
their declarations in regionstr.h, mi.h and mispans.h.

Reviewed-by: Jamey Sharp <jamey@minilop.net>
Signed-off-by: Keith Packard <keithp@keithp.com>
2010-06-05 18:59:00 -07:00

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#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "misc.h"
#include "xf86.h"
#include "xf86_OSproc.h"
#include <X11/X.h>
#include "scrnintstr.h"
#include "xf86str.h"
#include "xaa.h"
#include "xaalocal.h"
#include "migc.h"
#include "gcstruct.h"
#include "pixmapstr.h"
/*
Written mostly by Harm Hanemaayer (H.Hanemaayer@inter.nl.net).
*/
RegionPtr
XAACopyArea(
DrawablePtr pSrcDrawable,
DrawablePtr pDstDrawable,
GC *pGC,
int srcx, int srcy,
int width, int height,
int dstx, int dsty )
{
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
if(pDstDrawable->type == DRAWABLE_WINDOW) {
if((pSrcDrawable->type == DRAWABLE_WINDOW) ||
IS_OFFSCREEN_PIXMAP(pSrcDrawable)){
if(infoRec->ScreenToScreenBitBlt &&
CHECK_ROP(pGC,infoRec->ScreenToScreenBitBltFlags) &&
CHECK_ROPSRC(pGC,infoRec->ScreenToScreenBitBltFlags) &&
CHECK_PLANEMASK(pGC,infoRec->ScreenToScreenBitBltFlags))
return (XAABitBlt( pSrcDrawable, pDstDrawable,
pGC, srcx, srcy, width, height, dstx, dsty,
XAADoBitBlt, 0L));
} else {
if(infoRec->WritePixmap &&
((pDstDrawable->bitsPerPixel == pSrcDrawable->bitsPerPixel) ||
((pDstDrawable->bitsPerPixel == 24) &&
(pSrcDrawable->bitsPerPixel == 32) &&
(infoRec->WritePixmapFlags & CONVERT_32BPP_TO_24BPP))) &&
CHECK_ROP(pGC,infoRec->WritePixmapFlags) &&
CHECK_ROPSRC(pGC,infoRec->WritePixmapFlags) &&
CHECK_PLANEMASK(pGC,infoRec->WritePixmapFlags) &&
CHECK_NO_GXCOPY(pGC,infoRec->WritePixmapFlags))
return (XAABitBlt( pSrcDrawable, pDstDrawable,
pGC, srcx, srcy, width, height, dstx, dsty,
XAADoImageWrite, 0L));
}
} else if(IS_OFFSCREEN_PIXMAP(pDstDrawable)){
if((pSrcDrawable->type == DRAWABLE_WINDOW) ||
IS_OFFSCREEN_PIXMAP(pSrcDrawable)){
if(infoRec->ScreenToScreenBitBlt &&
CHECK_ROP(pGC,infoRec->ScreenToScreenBitBltFlags) &&
CHECK_ROPSRC(pGC,infoRec->ScreenToScreenBitBltFlags) &&
CHECK_PLANEMASK(pGC,infoRec->ScreenToScreenBitBltFlags))
return (XAABitBlt( pSrcDrawable, pDstDrawable,
pGC, srcx, srcy, width, height, dstx, dsty,
XAADoBitBlt, 0L));
}
}
return (XAAFallbackOps.CopyArea(pSrcDrawable, pDstDrawable, pGC,
srcx, srcy, width, height, dstx, dsty));
}
void
XAADoBitBlt(
DrawablePtr pSrc,
DrawablePtr pDst,
GC *pGC,
RegionPtr prgnDst,
DDXPointPtr pptSrc )
{
int nbox, careful;
BoxPtr pbox, pboxTmp, pboxNext, pboxBase, pboxNew1, pboxNew2;
DDXPointPtr pptTmp, pptNew1, pptNew2;
int xdir, ydir;
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
/* 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 = ((pSrc == pDst) ||
((pSrc->type == DRAWABLE_WINDOW) &&
(pDst->type == DRAWABLE_WINDOW)));
pbox = RegionRects(prgnDst);
nbox = RegionNumRects(prgnDst);
pboxNew1 = NULL;
pptNew1 = NULL;
pboxNew2 = NULL;
pptNew2 = NULL;
if (careful && (pptSrc->y < pbox->y1)) {
/* walk source botttom to top */
ydir = -1;
if (nbox > 1) {
/* keep ordering in each band, reverse order of bands */
pboxNew1 = (BoxPtr)malloc(sizeof(BoxRec) * nbox);
if(!pboxNew1)
return;
pptNew1 = (DDXPointPtr)malloc(sizeof(DDXPointRec) * nbox);
if(!pptNew1) {
free(pboxNew1);
return;
}
pboxBase = pboxNext = pbox+nbox-1;
while (pboxBase >= pbox) {
while ((pboxNext >= pbox) &&
(pboxBase->y1 == pboxNext->y1))
pboxNext--;
pboxTmp = pboxNext+1;
pptTmp = pptSrc + (pboxTmp - pbox);
while (pboxTmp <= pboxBase) {
*pboxNew1++ = *pboxTmp++;
*pptNew1++ = *pptTmp++;
}
pboxBase = pboxNext;
}
pboxNew1 -= nbox;
pbox = pboxNew1;
pptNew1 -= nbox;
pptSrc = pptNew1;
}
} else {
/* walk source top to bottom */
ydir = 1;
}
if (careful && (pptSrc->x < pbox->x1)) {
/* walk source right to left */
xdir = -1;
if (nbox > 1) {
/* reverse order of rects in each band */
pboxNew2 = (BoxPtr)malloc(sizeof(BoxRec) * nbox);
pptNew2 = (DDXPointPtr)malloc(sizeof(DDXPointRec) * nbox);
if(!pboxNew2 || !pptNew2) {
if (pptNew2) free(pptNew2);
if (pboxNew2) free(pboxNew2);
if (pboxNew1) {
free(pptNew1);
free(pboxNew1);
}
return;
}
pboxBase = pboxNext = pbox;
while (pboxBase < pbox+nbox) {
while ((pboxNext < pbox+nbox) &&
(pboxNext->y1 == pboxBase->y1))
pboxNext++;
pboxTmp = pboxNext;
pptTmp = pptSrc + (pboxTmp - pbox);
while (pboxTmp != pboxBase) {
*pboxNew2++ = *--pboxTmp;
*pptNew2++ = *--pptTmp;
}
pboxBase = pboxNext;
}
pboxNew2 -= nbox;
pbox = pboxNew2;
pptNew2 -= nbox;
pptSrc = pptNew2;
}
} else {
/* walk source left to right */
xdir = 1;
}
(*infoRec->ScreenToScreenBitBlt)(infoRec->pScrn, nbox, pptSrc, pbox,
xdir, ydir, pGC->alu, pGC->planemask);
if (pboxNew2) {
free(pptNew2);
free(pboxNew2);
}
if (pboxNew1) {
free(pptNew1);
free(pboxNew1);
}
}
void
XAADoImageWrite(
DrawablePtr pSrc,
DrawablePtr pDst,
GC *pGC,
RegionPtr prgnDst,
DDXPointPtr pptSrc )
{
int srcwidth;
unsigned char* psrcBase; /* start of image */
unsigned char* srcPntr; /* index into the image */
BoxPtr pbox = RegionRects(prgnDst);
int nbox = RegionNumRects(prgnDst);
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
int Bpp = pSrc->bitsPerPixel >> 3;
psrcBase = (unsigned char *)((PixmapPtr)pSrc)->devPrivate.ptr;
srcwidth = (int)((PixmapPtr)pSrc)->devKind;
for(; nbox; pbox++, pptSrc++, nbox--) {
srcPntr = psrcBase + (pptSrc->y * srcwidth) + (pptSrc->x * Bpp);
(*infoRec->WritePixmap)(infoRec->pScrn, pbox->x1, pbox->y1,
pbox->x2 - pbox->x1, pbox->y2 - pbox->y1, srcPntr, srcwidth,
pGC->alu, pGC->planemask, -1, pSrc->bitsPerPixel, pSrc->depth);
}
}
void
XAADoImageRead(
DrawablePtr pSrc,
DrawablePtr pDst,
GC *pGC,
RegionPtr prgnDst,
DDXPointPtr pptSrc )
{
int dstwidth;
unsigned char* pdstBase; /* start of image */
unsigned char* dstPntr; /* index into the image */
BoxPtr pbox = RegionRects(prgnDst);
int nbox = RegionNumRects(prgnDst);
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
int Bpp = pSrc->bitsPerPixel >> 3; /* wouldn't get here unless both
src and dst have same bpp */
pdstBase = (unsigned char *)((PixmapPtr)pDst)->devPrivate.ptr;
dstwidth = (int)((PixmapPtr)pDst)->devKind;
for(; nbox; pbox++, pptSrc++, nbox--) {
dstPntr = pdstBase + (pbox->y1 * dstwidth) + (pbox->x1 * Bpp);
(*infoRec->ReadPixmap)(infoRec->pScrn, pptSrc->x, pptSrc->y,
pbox->x2 - pbox->x1, pbox->y2 - pbox->y1, dstPntr, dstwidth,
pSrc->bitsPerPixel, pSrc->depth);
}
}
void
XAAScreenToScreenBitBlt(
ScrnInfoPtr pScrn,
int nbox,
DDXPointPtr pptSrc,
BoxPtr pbox,
int xdir, int ydir,
int alu,
unsigned int planemask )
{
XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
int dirsetup;
if ((!(infoRec->CopyAreaFlags & ONLY_TWO_BITBLT_DIRECTIONS)
|| (xdir == ydir)) &&
(!(infoRec->CopyAreaFlags & ONLY_LEFT_TO_RIGHT_BITBLT)
|| (xdir == 1))) {
(*infoRec->SetupForScreenToScreenCopy)(pScrn,
xdir, ydir, alu, planemask, -1);
for (; nbox; pbox++, pptSrc++, nbox--)
(*infoRec->SubsequentScreenToScreenCopy)(pScrn,pptSrc->x, pptSrc->y,
pbox->x1, pbox->y1, pbox->x2 - pbox->x1, pbox->y2 - pbox->y1);
SET_SYNC_FLAG(infoRec);
return;
}
if (infoRec->CopyAreaFlags & ONLY_LEFT_TO_RIGHT_BITBLT) {
/*
* This is the case of a chip that only supports xdir = 1,
* with ydir = 1 or ydir = -1, but we have xdir = -1.
*/
(*infoRec->SetupForScreenToScreenCopy)(pScrn,
1, ydir, alu, planemask, -1);
for (; nbox; pbox++, pptSrc++, nbox--)
if (pptSrc->y != pbox->y1 || pptSrc->x >= pbox->x1)
/* No problem. Do a xdir = 1 blit instead. */
(*infoRec->SubsequentScreenToScreenCopy)(pScrn,
pptSrc->x, pptSrc->y, pbox->x1, pbox->y1,
pbox->x2 - pbox->x1, pbox->y2 - pbox->y1);
else
{
/*
* This is the difficult case. Needs striping into
* non-overlapping horizontal chunks.
*/
int stripeWidth, w, fullStripes, extra, i;
stripeWidth = 16;
w = pbox->x2 - pbox->x1;
if (pbox->x1 - pptSrc->x < stripeWidth)
stripeWidth = pbox->x1 - pptSrc->x;
fullStripes = w / stripeWidth;
extra = w % stripeWidth;
/* First, take care of the little bit on the far right */
if (extra)
(*infoRec->SubsequentScreenToScreenCopy)(pScrn,
pptSrc->x + fullStripes * stripeWidth, pptSrc->y,
pbox->x1 + fullStripes * stripeWidth, pbox->y1,
extra, pbox->y2 - pbox->y1);
/* Now, take care of the rest of the blit */
for (i = fullStripes - 1; i >= 0; i--)
(*infoRec->SubsequentScreenToScreenCopy)(pScrn,
pptSrc->x + i * stripeWidth, pptSrc->y,
pbox->x1 + i * stripeWidth, pbox->y1,
stripeWidth, pbox->y2 - pbox->y1);
}
SET_SYNC_FLAG(infoRec);
return;
}
/*
* Now the case of a chip that only supports xdir = ydir = 1 or
* xdir = ydir = -1, but we have xdir != ydir.
*/
dirsetup = 0; /* No direction set up yet. */
for (; nbox; pbox++, pptSrc++, nbox--) {
if (xdir == 1 && pptSrc->y != pbox->y1) {
/* Do a xdir = ydir = -1 blit instead. */
if (dirsetup != -1) {
(*infoRec->SetupForScreenToScreenCopy)(pScrn,
-1, -1, alu, planemask, -1);
dirsetup = -1;
}
(*infoRec->SubsequentScreenToScreenCopy)(pScrn,pptSrc->x, pptSrc->y,
pbox->x1, pbox->y1, pbox->x2 - pbox->x1, pbox->y2 - pbox->y1);
}
else if (xdir == -1 && pptSrc->y != pbox->y1) {
/* Do a xdir = ydir = 1 blit instead. */
if (dirsetup != 1) {
(*infoRec->SetupForScreenToScreenCopy)(pScrn,
1, 1, alu, planemask, -1);
dirsetup = 1;
}
(*infoRec->SubsequentScreenToScreenCopy)(pScrn,pptSrc->x, pptSrc->y,
pbox->x1, pbox->y1, pbox->x2 - pbox->x1, pbox->y2 - pbox->y1);
}
else
if (xdir == 1) {
/*
* xdir = 1, ydir = -1.
* Perform line-by-line xdir = ydir = 1 blits, going up.
*/
int i;
if (dirsetup != 1) {
(*infoRec->SetupForScreenToScreenCopy)(pScrn,
1, 1, alu, planemask, -1);
dirsetup = 1;
}
for (i = pbox->y2 - pbox->y1 - 1; i >= 0; i--)
(*infoRec->SubsequentScreenToScreenCopy)(pScrn,
pptSrc->x, pptSrc->y + i, pbox->x1, pbox->y1 + i,
pbox->x2 - pbox->x1, 1);
}
else {
/*
* xdir = -1, ydir = 1.
* Perform line-by-line xdir = ydir = -1 blits, going down.
*/
int i;
if (dirsetup != -1) {
(*infoRec->SetupForScreenToScreenCopy)(pScrn,
-1, -1, alu, planemask, -1);
dirsetup = -1;
}
for (i = 0; i < pbox->y2 - pbox->y1; i++)
(*infoRec->SubsequentScreenToScreenCopy)(pScrn,
pptSrc->x, pptSrc->y + i, pbox->x1, pbox->y1 + i,
pbox->x2 - pbox->x1, 1);
}
} /* next box */
SET_SYNC_FLAG(infoRec);
}
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