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Diffstat (limited to 'hw/xfree86/xaa/xaaImage.c')
-rw-r--r--hw/xfree86/xaa/xaaImage.c520
1 files changed, 520 insertions, 0 deletions
diff --git a/hw/xfree86/xaa/xaaImage.c b/hw/xfree86/xaa/xaaImage.c
new file mode 100644
index 000000000..6da601faf
--- /dev/null
+++ b/hw/xfree86/xaa/xaaImage.c
@@ -0,0 +1,520 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/xaa/xaaImage.c,v 1.20 2000/09/25 23:56:14 mvojkovi Exp $ */
+
+#include "misc.h"
+#include "xf86.h"
+#include "xf86_ansic.h"
+#include "xf86_OSproc.h"
+#include "servermd.h"
+
+#include "X.h"
+#include "scrnintstr.h"
+#include "mi.h"
+#include "pixmapstr.h"
+#include "xf86str.h"
+#include "xaa.h"
+#include "xaalocal.h"
+
+void XAAMoveDWORDS_FixedBase(
+ register CARD32* dest,
+ register CARD32* src,
+ register int dwords )
+{
+ while(dwords & ~0x03) {
+ *dest = *src;
+ *dest = *(src + 1);
+ *dest = *(src + 2);
+ *dest = *(src + 3);
+ dwords -= 4;
+ src += 4;
+ }
+
+ if(!dwords) return;
+ *dest = *src;
+ if(dwords == 1) return;
+ *dest = *(src + 1);
+ if(dwords == 2) return;
+ *dest = *(src + 2);
+}
+
+void XAAMoveDWORDS(
+ register CARD32* dest,
+ register CARD32* src,
+ register int dwords )
+{
+ while(dwords & ~0x03) {
+ *dest = *src;
+ *(dest + 1) = *(src + 1);
+ *(dest + 2) = *(src + 2);
+ *(dest + 3) = *(src + 3);
+ src += 4;
+ dest += 4;
+ dwords -= 4;
+ }
+ if(!dwords) return;
+ *dest = *src;
+ if(dwords == 1) return;
+ *(dest + 1) = *(src + 1);
+ if(dwords == 2) return;
+ *(dest + 2) = *(src + 2);
+}
+
+void XAAMoveDWORDS_FixedSrc(
+ register CARD32* dest,
+ register CARD32* src,
+ register int dwords )
+{
+ while(dwords & ~0x03) {
+ *dest = *src;
+ *(dest + 1) = *src;
+ *(dest + 2) = *src;
+ *(dest + 3) = *src;
+ dest += 4;
+ dwords -= 4;
+ }
+ if(!dwords) return;
+ *dest = *src;
+ if(dwords == 1) return;
+ *(dest + 1) = *src;
+ if(dwords == 2) return;
+ *(dest + 2) = *src;
+}
+
+static void
+XAAWritePixmap32To24(
+ ScrnInfoPtr pScrn,
+ int x, int y, int w, int h,
+ unsigned char *srcInit,
+ int srcwidth, /* bytes */
+ int rop,
+ unsigned int planemask,
+ int trans
+){
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
+ int count, dwords = ((w * 3) + 3) >> 2;
+ CARD32 *src, *dst;
+ Bool PlusOne = FALSE;
+
+ if((infoRec->ImageWriteFlags & CPU_TRANSFER_PAD_QWORD) &&
+ ((dwords * h) & 0x01)) {
+ PlusOne = TRUE;
+ }
+
+ (*infoRec->SetupForImageWrite)(pScrn, rop, planemask, trans, 24, 24);
+ (*infoRec->SubsequentImageWriteRect)(pScrn, x, y, w, h, 0);
+
+ if(dwords > infoRec->ImageWriteRange) {
+ dst = (CARD32*)infoRec->ImageWriteBase;
+ while(h--) {
+ src = (CARD32*)srcInit;
+ count = w;
+
+ while(count >= 4) {
+ *dst = (src[0] & 0x00ffffff) | (src[1] << 24);
+ *dst = ((src[1] >> 8) & 0x0000ffff) | (src[2] << 16);
+ *dst = ((src[2] >> 16) & 0x000000ff) | (src[3] << 8);
+ src += 4;
+ count -= 4;
+ }
+ switch(count) {
+ case 0: break;
+ case 1: *dst = src[0];
+ break;
+ case 2: *dst = (src[0] & 0x00ffffff) | (src[1] << 24);
+ *dst = src[1] >> 8;
+ break;
+ default: *dst = (src[0] & 0x00ffffff) | (src[1] << 24);
+ *dst = ((src[1] >> 8) & 0x0000ffff) | (src[2] << 16);
+ *dst = src[2] >> 16;
+ break;
+ }
+ srcInit += srcwidth;
+ }
+ } else {
+ while(h--) {
+ dst = (CARD32*)infoRec->ImageWriteBase;
+ src = (CARD32*)srcInit;
+ count = w;
+
+ while(count >= 4) {
+ dst[0] = (src[0] & 0x00ffffff) | (src[1] << 24);
+ dst[1] = ((src[1] >> 8) & 0x0000ffff) | (src[2] << 16);
+ dst[2] = ((src[2] >> 16) & 0x000000ff) | (src[3] << 8);
+ dst += 3;
+ src += 4;
+ count -= 4;
+ }
+ switch(count) {
+ case 0: break;
+ case 1: dst[0] = src[0];
+ break;
+ case 2: dst[0] = (src[0] & 0x00ffffff) | (src[1] << 24);
+ dst[1] = src[1] >> 8;
+ break;
+ default: dst[0] = (src[0] & 0x00ffffff) | (src[1] << 24);
+ dst[1] = ((src[1] >> 8) & 0x0000ffff) | (src[2] << 16);
+ dst[2] = src[2] >> 16;
+ break;
+ }
+ srcInit += srcwidth;
+ }
+ }
+
+ if(PlusOne) {
+ CARD32* base = (CARD32*)infoRec->ImageWriteBase;
+ *base = 0x00000000;
+ }
+
+ if(infoRec->ImageWriteFlags & SYNC_AFTER_IMAGE_WRITE)
+ (*infoRec->Sync)(pScrn);
+ else SET_SYNC_FLAG(infoRec);
+
+}
+
+void
+XAAWritePixmap (
+ ScrnInfoPtr pScrn,
+ int x, int y, int w, int h,
+ unsigned char *src,
+ int srcwidth, /* bytes */
+ int rop,
+ unsigned int planemask,
+ int trans,
+ int bpp, int depth
+){
+ XAAInfoRecPtr infoRec;
+ int dwords, skipleft, Bpp;
+ Bool beCareful, PlusOne;
+
+ if((bpp == 32) && (pScrn->bitsPerPixel == 24)) {
+ XAAWritePixmap32To24(pScrn, x, y, w, h, src, srcwidth,
+ rop, planemask, trans);
+ return;
+ }
+
+ infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
+ beCareful = PlusOne = FALSE;
+ Bpp = bpp >> 3;
+
+ if((skipleft = (long)src & 0x03L)) {
+ if(!(infoRec->ImageWriteFlags & LEFT_EDGE_CLIPPING)) {
+ skipleft = 0;
+ beCareful = TRUE;
+ goto BAD_ALIGNMENT;
+ }
+
+ if(Bpp == 3)
+ skipleft = 4 - skipleft;
+ else
+ skipleft /= Bpp;
+
+ if((x < skipleft) && !(infoRec->ImageWriteFlags &
+ LEFT_EDGE_CLIPPING_NEGATIVE_X)) {
+ skipleft = 0;
+ beCareful = TRUE;
+ goto BAD_ALIGNMENT;
+ }
+
+ x -= skipleft;
+ w += skipleft;
+
+ if(Bpp == 3)
+ src -= 3 * skipleft;
+ else /* is this Alpha friendly ? */
+ src = (unsigned char*)((long)src & ~0x03L);
+ }
+
+BAD_ALIGNMENT:
+
+ dwords = ((w * Bpp) + 3) >> 2;
+
+ if((infoRec->ImageWriteFlags & CPU_TRANSFER_PAD_QWORD) &&
+ ((dwords * h) & 0x01)) {
+ PlusOne = TRUE;
+ }
+
+
+ (*infoRec->SetupForImageWrite)(pScrn, rop, planemask, trans, bpp, depth);
+ (*infoRec->SubsequentImageWriteRect)(pScrn, x, y, w, h, skipleft);
+
+ if(beCareful) {
+ /* in cases with bad alignment we have to be careful not
+ to read beyond the end of the source */
+ if(((x * Bpp) + (dwords << 2)) > srcwidth) h--;
+ else beCareful = FALSE;
+ }
+
+ if(dwords > infoRec->ImageWriteRange) {
+ while(h--) {
+ XAAMoveDWORDS_FixedBase((CARD32*)infoRec->ImageWriteBase,
+ (CARD32*)src, dwords);
+ src += srcwidth;
+ }
+ if(beCareful) {
+ int shift = ((long)src & 0x03L) << 3;
+ if(--dwords)
+ XAAMoveDWORDS_FixedBase((CARD32*)infoRec->ImageWriteBase,
+ (CARD32*)src, dwords);
+ src = (unsigned char*)((long)(src + (dwords << 2)) & ~0x03L);
+ *((CARD32*)infoRec->ImageWriteBase) = *((CARD32*)src) >> shift;
+ }
+ } else {
+ if(srcwidth == (dwords << 2)) {
+ int decrement = infoRec->ImageWriteRange/dwords;
+
+ while(h > decrement) {
+ XAAMoveDWORDS((CARD32*)infoRec->ImageWriteBase,
+ (CARD32*)src, dwords * decrement);
+ src += (srcwidth * decrement);
+ h -= decrement;
+ }
+ if(h) {
+ XAAMoveDWORDS((CARD32*)infoRec->ImageWriteBase,
+ (CARD32*)src, dwords * h);
+ if(beCareful) src += (srcwidth * h);
+ }
+ } else {
+ while(h--) {
+ XAAMoveDWORDS((CARD32*)infoRec->ImageWriteBase,
+ (CARD32*)src, dwords);
+ src += srcwidth;
+ }
+ }
+
+ if(beCareful) {
+ int shift = ((long)src & 0x03L) << 3;
+ if(--dwords)
+ XAAMoveDWORDS((CARD32*)infoRec->ImageWriteBase,
+ (CARD32*)src, dwords);
+ src = (unsigned char*)((long)(src + (dwords << 2)) & ~0x03L);
+
+ ((CARD32*)infoRec->ImageWriteBase)[dwords] =
+ *((CARD32*)src) >> shift;
+ }
+ }
+
+ if(PlusOne) {
+ CARD32* base = (CARD32*)infoRec->ImageWriteBase;
+ *base = 0x00000000;
+ }
+
+ if(infoRec->ImageWriteFlags & SYNC_AFTER_IMAGE_WRITE)
+ (*infoRec->Sync)(pScrn);
+ else SET_SYNC_FLAG(infoRec);
+}
+
+
+void
+XAAWritePixmapScanline (
+ ScrnInfoPtr pScrn,
+ int x, int y, int w, int h,
+ unsigned char *src,
+ int srcwidth, /* bytes */
+ int rop,
+ unsigned int planemask,
+ int trans,
+ int bpp, int depth
+){
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
+ int dwords, skipleft, bufferNo = 0, Bpp = bpp >> 3;
+ Bool beCareful = FALSE;
+ CARD32* base;
+
+ if((skipleft = (long)src & 0x03L)) {
+ if(!(infoRec->ScanlineImageWriteFlags & LEFT_EDGE_CLIPPING)) {
+ skipleft = 0;
+ beCareful = TRUE;
+ goto BAD_ALIGNMENT;
+ }
+
+ if(Bpp == 3)
+ skipleft = 4 - skipleft;
+ else
+ skipleft /= Bpp;
+
+ if((x < skipleft) && !(infoRec->ScanlineImageWriteFlags &
+ LEFT_EDGE_CLIPPING_NEGATIVE_X)) {
+ skipleft = 0;
+ beCareful = TRUE;
+ goto BAD_ALIGNMENT;
+ }
+
+ x -= skipleft;
+ w += skipleft;
+
+ if(Bpp == 3)
+ src -= 3 * skipleft;
+ else
+ src = (unsigned char*)((long)src & ~0x03L);
+ }
+
+BAD_ALIGNMENT:
+
+ dwords = ((w * Bpp) + 3) >> 2;
+
+ (*infoRec->SetupForScanlineImageWrite)(
+ pScrn, rop, planemask, trans, bpp, depth);
+ (*infoRec->SubsequentScanlineImageWriteRect)(pScrn, x, y, w, h, skipleft);
+
+ if(beCareful) {
+ /* in cases with bad alignment we have to be careful not
+ to read beyond the end of the source */
+ if(((x * Bpp) + (dwords << 2)) > srcwidth) h--;
+ else beCareful = FALSE;
+ }
+
+ while(h--) {
+ base = (CARD32*)infoRec->ScanlineImageWriteBuffers[bufferNo];
+ XAAMoveDWORDS(base, (CARD32*)src, dwords);
+ (*infoRec->SubsequentImageWriteScanline)(pScrn, bufferNo++);
+ src += srcwidth;
+ if(bufferNo >= infoRec->NumScanlineImageWriteBuffers)
+ bufferNo = 0;
+ }
+
+ if(beCareful) {
+ int shift = ((long)src & 0x03L) << 3;
+ base = (CARD32*)infoRec->ScanlineImageWriteBuffers[bufferNo];
+ if(--dwords)
+ XAAMoveDWORDS(base,(CARD32*)src, dwords);
+ src = (unsigned char*)((long)(src + (dwords << 2)) & ~0x03L);
+
+ base[dwords] = *((CARD32*)src) >> shift;
+ (*infoRec->SubsequentImageWriteScanline)(pScrn, bufferNo);
+ }
+
+ SET_SYNC_FLAG(infoRec);
+}
+
+
+void
+XAAPutImage(
+ DrawablePtr pDraw,
+ GCPtr pGC,
+ int depth,
+ int x,
+ int y,
+ int w,
+ int h,
+ int leftPad,
+ int format,
+ char *pImage
+){
+ XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
+ int bpp = BitsPerPixel(depth);
+ Bool depthBug = FALSE;
+ if(!w || !h) return;
+
+ if(!REGION_NUM_RECTS(pGC->pCompositeClip))
+ return;
+
+ depthBug = XAA_DEPTH_BUG(pGC);
+
+ if(((format == ZPixmap) && infoRec->WritePixmap &&
+ ((pDraw->bitsPerPixel == bpp) ||
+ ((pDraw->bitsPerPixel == 24) && (bpp == 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)) ||
+ ((format == XYBitmap) && !depthBug && infoRec->WriteBitmap &&
+ CHECK_ROP(pGC,infoRec->WriteBitmapFlags) &&
+ CHECK_ROPSRC(pGC,infoRec->WriteBitmapFlags) &&
+ CHECK_PLANEMASK(pGC,infoRec->WriteBitmapFlags) &&
+ CHECK_COLORS(pGC,infoRec->WriteBitmapFlags) &&
+ !(infoRec->WriteBitmapFlags & TRANSPARENCY_ONLY)) ||
+ ((format == XYPixmap) && !depthBug && infoRec->WriteBitmap &&
+ CHECK_ROP(pGC,infoRec->WriteBitmapFlags) &&
+ CHECK_ROPSRC(pGC,infoRec->WriteBitmapFlags) &&
+ !(infoRec->WriteBitmapFlags & NO_PLANEMASK) &&
+ !(infoRec->WriteBitmapFlags & TRANSPARENCY_ONLY))){
+
+ int MaxBoxes = REGION_NUM_RECTS(pGC->pCompositeClip);
+ BoxPtr pbox, pClipBoxes;
+ int nboxes, srcx, srcy, srcwidth;
+ xRectangle TheRect;
+
+ TheRect.x = pDraw->x + x;
+ TheRect.y = pDraw->y + y;
+ TheRect.width = w;
+ TheRect.height = h;
+
+ if(MaxBoxes > (infoRec->PreAllocSize/sizeof(BoxRec))) {
+ pClipBoxes = xalloc(MaxBoxes * sizeof(BoxRec));
+ if(!pClipBoxes) return;
+ } else pClipBoxes = (BoxPtr)infoRec->PreAllocMem;
+
+ nboxes =
+ XAAGetRectClipBoxes(pGC->pCompositeClip, pClipBoxes, 1, &TheRect);
+ pbox = pClipBoxes;
+
+ if(format == XYBitmap) {
+ srcwidth = BitmapBytePad(leftPad + w);
+ while(nboxes--) {
+ srcx = pbox->x1 - TheRect.x + leftPad;
+ srcy = pbox->y1 - TheRect.y;
+ (*infoRec->WriteBitmap)(infoRec->pScrn, pbox->x1, pbox->y1,
+ pbox->x2 - pbox->x1, pbox->y2 - pbox->y1,
+ (unsigned char*)pImage +
+ (srcwidth * srcy) + ((srcx >> 5) << 2),
+ srcwidth, srcx & 31, pGC->fgPixel, pGC->bgPixel,
+ pGC->alu, pGC->planemask);
+ pbox++;
+ }
+ } else if(format == ZPixmap) {
+ int Bpp = bpp >> 3;
+ srcwidth = PixmapBytePad(leftPad + w, depth);
+ while(nboxes--) {
+ srcx = pbox->x1 - TheRect.x + leftPad;
+ srcy = pbox->y1 - TheRect.y;
+ (*infoRec->WritePixmap)(infoRec->pScrn, pbox->x1, pbox->y1,
+ pbox->x2 - pbox->x1, pbox->y2 - pbox->y1,
+ (unsigned char*)pImage +
+ (srcwidth * srcy) + (srcx * Bpp),
+ srcwidth, pGC->alu, pGC->planemask, -1,
+ Bpp << 3, depth);
+ pbox++;
+ }
+ } else { /* XYPixmap */
+ int depth = pGC->depth;
+ int numBox, increment;
+ unsigned long i, mask;
+ BoxPtr pntBox;
+
+ srcwidth = BitmapBytePad(w + leftPad);
+ increment = h * srcwidth;
+ i = 1 << (depth - 1);
+ mask = ~0;
+
+ if((infoRec->pScrn->overlayFlags & OVERLAY_8_32_PLANAR) &&
+ (pGC->depth == 8)){
+ i = 0x80000000; mask = 0xff000000;
+ }
+
+ for(; i & mask; i >>= 1, pImage += increment) {
+ if(i & pGC->planemask) {
+ pntBox = pbox;
+ numBox = nboxes;
+ while(numBox--) {
+ srcx = pntBox->x1 - TheRect.x + leftPad;
+ srcy = pntBox->y1 - TheRect.y;
+ (*infoRec->WriteBitmap)(infoRec->pScrn,
+ pntBox->x1, pntBox->y1,
+ pntBox->x2 - pntBox->x1,
+ pntBox->y2 - pntBox->y1,
+ (unsigned char*)pImage +
+ (srcwidth * srcy) + ((srcx >> 5) << 2),
+ srcwidth, srcx & 31, ~0, 0, pGC->alu, i);
+ pntBox++;
+ }
+ }
+ }
+
+ }
+
+ if(pClipBoxes != (BoxPtr)infoRec->PreAllocMem)
+ xfree(pClipBoxes);
+ } else
+ XAAFallbackOps.PutImage(pDraw, pGC, depth, x, y, w, h, leftPad,
+ format, pImage);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-25 02:18:11 +0000