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xserver-multidpi/hw/xfree86/xaa/xaaCpyArea.c
Keith Packard 9838b7032e Introduce a consistent coding style 
This is strictly the application of the script 'x-indent-all.sh'
from util/modular. Compared to the patch that Daniel posted in
January, I've added a few indent flags:

	-bap
	-psl
	-T PrivatePtr
	-T pmWait
	-T _XFUNCPROTOBEGIN
	-T _XFUNCPROTOEND
	-T _X_EXPORT

The typedefs were needed to make the output of sdksyms.sh match the
previous output, otherwise, the code is formatted badly enough that
sdksyms.sh generates incorrect output.

The generated code was compared with the previous version and found to
be essentially identical -- "assert" line numbers and BUILD_TIME were
the only differences found.

The comparison was done with this script:

dir1=$1
dir2=$2

for dir in $dir1 $dir2; do
	(cd $dir && find . -name '*.o' | while read file; do
		dir=`dirname $file`
		base=`basename $file .o`
		dump=$dir/$base.dump
		objdump -d $file > $dump
	done)
done

find $dir1 -name '*.dump' | while read dump; do
	otherdump=`echo $dump | sed "s;$dir1;$dir2;"`
	diff -u $dump $otherdump
done

Signed-off-by: Keith Packard <keithp@keithp.com>
Acked-by: Daniel Stone <daniel@fooishbar.org>
Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2012-03-21 13:54:42 -07:00

410 lines
16 KiB
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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) {
free(pptNew2);
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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