520 lines
13 KiB
C
520 lines
13 KiB
C
/* $XFree86: xc/programs/Xserver/hw/xfree86/xaa/xaaImage.c,v 1.20tsi Exp $ */
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#include "misc.h"
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#include "xf86.h"
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#include "xf86_ansic.h"
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#include "xf86_OSproc.h"
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#include "servermd.h"
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#include "X.h"
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#include "scrnintstr.h"
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#include "mi.h"
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#include "pixmapstr.h"
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#include "xf86str.h"
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#include "xaa.h"
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#include "xaalocal.h"
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void XAAMoveDWORDS_FixedBase(
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register CARD32* dest,
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register CARD32* src,
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register int dwords )
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{
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while(dwords & ~0x03) {
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*dest = *src;
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*dest = *(src + 1);
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*dest = *(src + 2);
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*dest = *(src + 3);
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dwords -= 4;
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src += 4;
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}
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if(!dwords) return;
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*dest = *src;
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if(dwords == 1) return;
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*dest = *(src + 1);
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if(dwords == 2) return;
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*dest = *(src + 2);
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}
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void XAAMoveDWORDS(
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register CARD32* dest,
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register CARD32* src,
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register int dwords )
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{
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while(dwords & ~0x03) {
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*dest = *src;
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*(dest + 1) = *(src + 1);
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*(dest + 2) = *(src + 2);
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*(dest + 3) = *(src + 3);
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src += 4;
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dest += 4;
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dwords -= 4;
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}
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if(!dwords) return;
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*dest = *src;
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if(dwords == 1) return;
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*(dest + 1) = *(src + 1);
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if(dwords == 2) return;
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*(dest + 2) = *(src + 2);
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}
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void XAAMoveDWORDS_FixedSrc(
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register CARD32* dest,
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register CARD32* src,
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register int dwords )
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{
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while(dwords & ~0x03) {
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*dest = *src;
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*(dest + 1) = *src;
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*(dest + 2) = *src;
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*(dest + 3) = *src;
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dest += 4;
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dwords -= 4;
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}
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if(!dwords) return;
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*dest = *src;
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if(dwords == 1) return;
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*(dest + 1) = *src;
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if(dwords == 2) return;
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*(dest + 2) = *src;
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}
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static void
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XAAWritePixmap32To24(
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ScrnInfoPtr pScrn,
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int x, int y, int w, int h,
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unsigned char *srcInit,
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int srcwidth, /* bytes */
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int rop,
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unsigned int planemask,
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int trans
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){
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XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
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int count, dwords = ((w * 3) + 3) >> 2;
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CARD32 *src, *dst;
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Bool PlusOne = FALSE;
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if((infoRec->ImageWriteFlags & CPU_TRANSFER_PAD_QWORD) &&
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((dwords * h) & 0x01)) {
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PlusOne = TRUE;
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}
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(*infoRec->SetupForImageWrite)(pScrn, rop, planemask, trans, 24, 24);
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(*infoRec->SubsequentImageWriteRect)(pScrn, x, y, w, h, 0);
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if(dwords > infoRec->ImageWriteRange) {
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dst = (CARD32*)infoRec->ImageWriteBase;
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while(h--) {
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src = (CARD32*)srcInit;
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count = w;
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while(count >= 4) {
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*dst = (src[0] & 0x00ffffff) | (src[1] << 24);
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*dst = ((src[1] >> 8) & 0x0000ffff) | (src[2] << 16);
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*dst = ((src[2] >> 16) & 0x000000ff) | (src[3] << 8);
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src += 4;
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count -= 4;
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}
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switch(count) {
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case 0: break;
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case 1: *dst = src[0];
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break;
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case 2: *dst = (src[0] & 0x00ffffff) | (src[1] << 24);
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*dst = src[1] >> 8;
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break;
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default: *dst = (src[0] & 0x00ffffff) | (src[1] << 24);
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*dst = ((src[1] >> 8) & 0x0000ffff) | (src[2] << 16);
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*dst = src[2] >> 16;
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break;
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}
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srcInit += srcwidth;
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}
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} else {
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while(h--) {
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dst = (CARD32*)infoRec->ImageWriteBase;
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src = (CARD32*)srcInit;
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count = w;
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while(count >= 4) {
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dst[0] = (src[0] & 0x00ffffff) | (src[1] << 24);
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dst[1] = ((src[1] >> 8) & 0x0000ffff) | (src[2] << 16);
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dst[2] = ((src[2] >> 16) & 0x000000ff) | (src[3] << 8);
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dst += 3;
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src += 4;
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count -= 4;
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}
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switch(count) {
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case 0: break;
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case 1: dst[0] = src[0];
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break;
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case 2: dst[0] = (src[0] & 0x00ffffff) | (src[1] << 24);
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dst[1] = src[1] >> 8;
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break;
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default: dst[0] = (src[0] & 0x00ffffff) | (src[1] << 24);
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dst[1] = ((src[1] >> 8) & 0x0000ffff) | (src[2] << 16);
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dst[2] = src[2] >> 16;
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break;
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}
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srcInit += srcwidth;
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}
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}
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if(PlusOne) {
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CARD32* base = (CARD32*)infoRec->ImageWriteBase;
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*base = 0x00000000;
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}
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if(infoRec->ImageWriteFlags & SYNC_AFTER_IMAGE_WRITE)
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(*infoRec->Sync)(pScrn);
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else SET_SYNC_FLAG(infoRec);
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}
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void
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XAAWritePixmap (
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ScrnInfoPtr pScrn,
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int x, int y, int w, int h,
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unsigned char *src,
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int srcwidth, /* bytes */
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int rop,
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unsigned int planemask,
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int trans,
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int bpp, int depth
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){
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XAAInfoRecPtr infoRec;
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int dwords, skipleft, Bpp;
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Bool beCareful, PlusOne;
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if((bpp == 32) && (pScrn->bitsPerPixel == 24)) {
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XAAWritePixmap32To24(pScrn, x, y, w, h, src, srcwidth,
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rop, planemask, trans);
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return;
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}
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infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
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beCareful = PlusOne = FALSE;
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Bpp = bpp >> 3;
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if((skipleft = (long)src & 0x03L)) {
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if(!(infoRec->ImageWriteFlags & LEFT_EDGE_CLIPPING)) {
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skipleft = 0;
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beCareful = TRUE;
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goto BAD_ALIGNMENT;
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}
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if(Bpp == 3)
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skipleft = 4 - skipleft;
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else
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skipleft /= Bpp;
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if((x < skipleft) && !(infoRec->ImageWriteFlags &
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LEFT_EDGE_CLIPPING_NEGATIVE_X)) {
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skipleft = 0;
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beCareful = TRUE;
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goto BAD_ALIGNMENT;
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}
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x -= skipleft;
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w += skipleft;
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if(Bpp == 3)
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src -= 3 * skipleft;
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else /* is this Alpha friendly ? */
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src = (unsigned char*)((long)src & ~0x03L);
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}
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BAD_ALIGNMENT:
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dwords = ((w * Bpp) + 3) >> 2;
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if((infoRec->ImageWriteFlags & CPU_TRANSFER_PAD_QWORD) &&
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((dwords * h) & 0x01)) {
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PlusOne = TRUE;
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}
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(*infoRec->SetupForImageWrite)(pScrn, rop, planemask, trans, bpp, depth);
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(*infoRec->SubsequentImageWriteRect)(pScrn, x, y, w, h, skipleft);
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if(beCareful) {
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/* in cases with bad alignment we have to be careful not
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to read beyond the end of the source */
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if(((x * Bpp) + (dwords << 2)) > srcwidth) h--;
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else beCareful = FALSE;
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}
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if(dwords > infoRec->ImageWriteRange) {
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while(h--) {
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XAAMoveDWORDS_FixedBase((CARD32*)infoRec->ImageWriteBase,
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(CARD32*)src, dwords);
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src += srcwidth;
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}
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if(beCareful) {
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int shift = ((long)src & 0x03L) << 3;
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if(--dwords)
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XAAMoveDWORDS_FixedBase((CARD32*)infoRec->ImageWriteBase,
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(CARD32*)src, dwords);
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src = (unsigned char*)((long)(src + (dwords << 2)) & ~0x03L);
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*((CARD32*)infoRec->ImageWriteBase) = *((CARD32*)src) >> shift;
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}
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} else {
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if(srcwidth == (dwords << 2)) {
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int decrement = infoRec->ImageWriteRange/dwords;
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while(h > decrement) {
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XAAMoveDWORDS((CARD32*)infoRec->ImageWriteBase,
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(CARD32*)src, dwords * decrement);
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src += (srcwidth * decrement);
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h -= decrement;
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}
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if(h) {
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XAAMoveDWORDS((CARD32*)infoRec->ImageWriteBase,
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(CARD32*)src, dwords * h);
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if(beCareful) src += (srcwidth * h);
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}
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} else {
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while(h--) {
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XAAMoveDWORDS((CARD32*)infoRec->ImageWriteBase,
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(CARD32*)src, dwords);
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src += srcwidth;
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}
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}
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if(beCareful) {
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int shift = ((long)src & 0x03L) << 3;
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if(--dwords)
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XAAMoveDWORDS((CARD32*)infoRec->ImageWriteBase,
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(CARD32*)src, dwords);
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src = (unsigned char*)((long)(src + (dwords << 2)) & ~0x03L);
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((CARD32*)infoRec->ImageWriteBase)[dwords] =
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*((CARD32*)src) >> shift;
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}
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}
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if(PlusOne) {
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CARD32* base = (CARD32*)infoRec->ImageWriteBase;
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*base = 0x00000000;
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}
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if(infoRec->ImageWriteFlags & SYNC_AFTER_IMAGE_WRITE)
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(*infoRec->Sync)(pScrn);
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else SET_SYNC_FLAG(infoRec);
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}
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void
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XAAWritePixmapScanline (
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ScrnInfoPtr pScrn,
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int x, int y, int w, int h,
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unsigned char *src,
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int srcwidth, /* bytes */
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int rop,
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unsigned int planemask,
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int trans,
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int bpp, int depth
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){
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XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_SCRNINFOPTR(pScrn);
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int dwords, skipleft, bufferNo = 0, Bpp = bpp >> 3;
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Bool beCareful = FALSE;
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CARD32* base;
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if((skipleft = (long)src & 0x03L)) {
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if(!(infoRec->ScanlineImageWriteFlags & LEFT_EDGE_CLIPPING)) {
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skipleft = 0;
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beCareful = TRUE;
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goto BAD_ALIGNMENT;
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}
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if(Bpp == 3)
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skipleft = 4 - skipleft;
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else
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skipleft /= Bpp;
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if((x < skipleft) && !(infoRec->ScanlineImageWriteFlags &
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LEFT_EDGE_CLIPPING_NEGATIVE_X)) {
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skipleft = 0;
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beCareful = TRUE;
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goto BAD_ALIGNMENT;
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}
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x -= skipleft;
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w += skipleft;
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if(Bpp == 3)
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src -= 3 * skipleft;
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else
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src = (unsigned char*)((long)src & ~0x03L);
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}
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BAD_ALIGNMENT:
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dwords = ((w * Bpp) + 3) >> 2;
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(*infoRec->SetupForScanlineImageWrite)(
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pScrn, rop, planemask, trans, bpp, depth);
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(*infoRec->SubsequentScanlineImageWriteRect)(pScrn, x, y, w, h, skipleft);
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if(beCareful) {
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/* in cases with bad alignment we have to be careful not
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to read beyond the end of the source */
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if(((x * Bpp) + (dwords << 2)) > srcwidth) h--;
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else beCareful = FALSE;
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}
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while(h--) {
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base = (CARD32*)infoRec->ScanlineImageWriteBuffers[bufferNo];
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XAAMoveDWORDS(base, (CARD32*)src, dwords);
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(*infoRec->SubsequentImageWriteScanline)(pScrn, bufferNo++);
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src += srcwidth;
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if(bufferNo >= infoRec->NumScanlineImageWriteBuffers)
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bufferNo = 0;
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}
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if(beCareful) {
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int shift = ((long)src & 0x03L) << 3;
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base = (CARD32*)infoRec->ScanlineImageWriteBuffers[bufferNo];
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if(--dwords)
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XAAMoveDWORDS(base,(CARD32*)src, dwords);
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src = (unsigned char*)((long)(src + (dwords << 2)) & ~0x03L);
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base[dwords] = *((CARD32*)src) >> shift;
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(*infoRec->SubsequentImageWriteScanline)(pScrn, bufferNo);
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}
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SET_SYNC_FLAG(infoRec);
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}
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void
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XAAPutImage(
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DrawablePtr pDraw,
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GCPtr pGC,
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int depth,
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int x,
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int y,
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int w,
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int h,
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int leftPad,
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int format,
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char *pImage
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){
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XAAInfoRecPtr infoRec = GET_XAAINFORECPTR_FROM_GC(pGC);
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int bpp = BitsPerPixel(depth);
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Bool depthBug = FALSE;
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if(!w || !h) return;
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if(!REGION_NUM_RECTS(pGC->pCompositeClip))
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return;
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depthBug = XAA_DEPTH_BUG(pGC);
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if(((format == ZPixmap) && infoRec->WritePixmap &&
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((pDraw->bitsPerPixel == bpp) ||
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((pDraw->bitsPerPixel == 24) && (bpp == 32) &&
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(infoRec->WritePixmapFlags & CONVERT_32BPP_TO_24BPP))) &&
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CHECK_ROP(pGC,infoRec->WritePixmapFlags) &&
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CHECK_ROPSRC(pGC,infoRec->WritePixmapFlags) &&
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CHECK_PLANEMASK(pGC,infoRec->WritePixmapFlags) &&
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CHECK_NO_GXCOPY(pGC,infoRec->WritePixmapFlags)) ||
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((format == XYBitmap) && !depthBug && infoRec->WriteBitmap &&
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CHECK_ROP(pGC,infoRec->WriteBitmapFlags) &&
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CHECK_ROPSRC(pGC,infoRec->WriteBitmapFlags) &&
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CHECK_PLANEMASK(pGC,infoRec->WriteBitmapFlags) &&
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CHECK_COLORS(pGC,infoRec->WriteBitmapFlags) &&
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!(infoRec->WriteBitmapFlags & TRANSPARENCY_ONLY)) ||
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((format == XYPixmap) && !depthBug && infoRec->WriteBitmap &&
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CHECK_ROP(pGC,infoRec->WriteBitmapFlags) &&
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CHECK_ROPSRC(pGC,infoRec->WriteBitmapFlags) &&
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!(infoRec->WriteBitmapFlags & NO_PLANEMASK) &&
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!(infoRec->WriteBitmapFlags & TRANSPARENCY_ONLY))){
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int MaxBoxes = REGION_NUM_RECTS(pGC->pCompositeClip);
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BoxPtr pbox, pClipBoxes;
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int nboxes, srcx, srcy, srcwidth;
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xRectangle TheRect;
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TheRect.x = pDraw->x + x;
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TheRect.y = pDraw->y + y;
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TheRect.width = w;
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TheRect.height = h;
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if(MaxBoxes > (infoRec->PreAllocSize/sizeof(BoxRec))) {
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pClipBoxes = xalloc(MaxBoxes * sizeof(BoxRec));
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if(!pClipBoxes) return;
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} else pClipBoxes = (BoxPtr)infoRec->PreAllocMem;
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nboxes = XAAGetRectClipBoxes(pGC, pClipBoxes, 1, &TheRect);
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pbox = pClipBoxes;
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if(format == XYBitmap) {
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srcwidth = BitmapBytePad(leftPad + w);
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while(nboxes--) {
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srcx = pbox->x1 - TheRect.x + leftPad;
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srcy = pbox->y1 - TheRect.y;
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(*infoRec->WriteBitmap)(infoRec->pScrn, pbox->x1, pbox->y1,
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pbox->x2 - pbox->x1, pbox->y2 - pbox->y1,
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(unsigned char*)pImage +
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(srcwidth * srcy) + ((srcx >> 5) << 2),
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srcwidth, srcx & 31, pGC->fgPixel, pGC->bgPixel,
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pGC->alu, pGC->planemask);
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pbox++;
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}
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} else if(format == ZPixmap) {
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int Bpp = bpp >> 3;
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srcwidth = PixmapBytePad(leftPad + w, depth);
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while(nboxes--) {
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srcx = pbox->x1 - TheRect.x + leftPad;
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srcy = pbox->y1 - TheRect.y;
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(*infoRec->WritePixmap)(infoRec->pScrn, pbox->x1, pbox->y1,
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pbox->x2 - pbox->x1, pbox->y2 - pbox->y1,
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(unsigned char*)pImage +
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(srcwidth * srcy) + (srcx * Bpp),
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srcwidth, pGC->alu, pGC->planemask, -1,
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Bpp << 3, depth);
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pbox++;
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}
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} else { /* XYPixmap */
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int depth = pGC->depth;
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int numBox, increment;
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unsigned long i, mask;
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BoxPtr pntBox;
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srcwidth = BitmapBytePad(w + leftPad);
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increment = h * srcwidth;
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i = 1 << (depth - 1);
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mask = ~0;
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if((infoRec->pScrn->overlayFlags & OVERLAY_8_32_PLANAR) &&
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(pGC->depth == 8)){
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i = 0x80000000; mask = 0xff000000;
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}
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for(; i & mask; i >>= 1, pImage += increment) {
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if(i & pGC->planemask) {
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pntBox = pbox;
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numBox = nboxes;
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while(numBox--) {
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srcx = pntBox->x1 - TheRect.x + leftPad;
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srcy = pntBox->y1 - TheRect.y;
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|
(*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);
|
|
}
|