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-rw-r--r--xorg-server/cfb/cfbblt.c933
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diff --git a/xorg-server/cfb/cfbblt.c b/xorg-server/cfb/cfbblt.c
new file mode 100644
index 000000000..ff34589ff
--- /dev/null
+++ b/xorg-server/cfb/cfbblt.c
@@ -0,0 +1,933 @@
+/*
+ * cfb copy area
+ */
+
+/*
+
+Copyright 1989, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+Author: Keith Packard
+
+*/
+
+/* 24-bit bug fixes: Peter Wainwright, 1998/11/28 */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <stdlib.h>
+
+#include <X11/X.h>
+#include <X11/Xmd.h>
+#include <X11/Xproto.h>
+#include "gcstruct.h"
+#include "windowstr.h"
+#include "scrnintstr.h"
+#include "pixmapstr.h"
+#include "regionstr.h"
+#include "cfb.h"
+#include "cfbmskbits.h"
+#include "cfb8bit.h"
+#include "fastblt.h"
+#include "mergerop.h"
+
+#ifdef notdef /* XXX fails right now, walks off end of pixmaps */
+#if defined (FAST_UNALIGNED_READS) && PSZ == 8
+#define DO_UNALIGNED_BITBLT
+#endif
+#endif
+
+#if defined(FAST_MEMCPY) && (MROP == Mcopy) && PSZ == 8
+#define DO_MEMCPY
+#endif
+
+/* ................................................. */
+/* SPECIAL CODE FOR 24 BITS by Peter Wainwright */
+
+#if PSZ == 24 && (MROP) == 0
+
+/* The default macros are defined in mergerop.h, and none of them are
+ really appropriate for what we want to do.
+
+ There are two ways of fixing this: either define SLOW_24BIT_COPY
+ to copy pixel by pixel, or (by default) use the following macros
+ modified from mergerop.h
+
+ MROP_SOLID and MROP_MASK are defined for each of the operations,
+ i.e. each value of MROP.
+
+ There are special cases for Mcopy, McopyInverted, Mxor, and Mor.
+ There is a completely generic version for MROP=0, and a simplified
+ generic version which works for (Mcopy|Mxor|MandReverse|Mor).
+
+ However, the generic version does not work for the 24-bit case
+ because the pixels cannot be packed exactly into a machine word (32
+ bits).
+
+ Alternative macros MROP_SOLID24 and MROP_MASK24 are provided for
+ the 24-bit case. However, these each copy a single *pixel*, not a
+ single machine word. They take an rvalue source pixel, an lvalue
+ destination, and the pixel index. The latter is used to find the
+ position of the pixel data within the two words *dst and *(dst+1).
+
+ Further macros MROP_SOLID24P and MROP_MASK24P are used to copy from
+ an lvalue source to an lvalue destination. MROP_PIXEL24 is used to
+ assemble the source pixel from the adjacent words *src and
+ *(src+1), and this is then split between the destination words
+ using the non-P macros above.
+
+ But we want to copy entire words for the sake of efficiency.
+ Unfortunately if a plane mask is specified this must be shifted
+ from one word to the next. Fortunately the pattern repeats after 3
+ words, so we unroll the planemask here and redefine MROP_SOLID
+ and MROP_MASK. */
+
+
+#endif /* MROP == 0 && PSZ == 24 */
+
+/* ................................................. */
+
+#if PSZ == 24
+#define BYPP 3
+#if PGSZ == 32
+#define P3W 4 /* pixels in 3 machine words */
+#define PAM 3 /* pixel align mask; PAM = P3W -1 */
+#define P2WSH 2
+#else
+#define P3W 8 /* pixels in 3 machine words */
+#define PAM 7 /* pixel align mask; PAM = P3W -1 */
+#define P2WSH 3
+#endif
+#endif
+
+void
+MROP_NAME(cfbDoBitblt)(
+ DrawablePtr pSrc,
+ DrawablePtr pDst,
+ int alu,
+ RegionPtr prgnDst,
+ DDXPointPtr pptSrc,
+ unsigned long planemask)
+{
+ CfbBits *psrcBase, *pdstBase;
+ /* start of src and dst bitmaps */
+ int widthSrc, widthDst; /* add to get to same position in next line */
+
+ BoxPtr pbox;
+ int nbox;
+
+ BoxPtr pboxTmp, pboxNext, pboxBase, pboxNew1, pboxNew2;
+ /* temporaries for shuffling rectangles */
+ DDXPointPtr pptTmp, pptNew1, pptNew2;
+ /* shuffling boxes entails shuffling the
+ source points too */
+ int w, h;
+ int xdir; /* 1 = left right, -1 = right left/ */
+ int ydir; /* 1 = top down, -1 = bottom up */
+
+ CfbBits *psrcLine, *pdstLine;
+ /* pointers to line with current src and dst */
+ register CfbBits *psrc;/* pointer to current src longword */
+ register CfbBits *pdst;/* pointer to current dst longword */
+
+ MROP_DECLARE_REG()
+
+ /* following used for looping through a line */
+ CfbBits startmask, endmask; /* masks for writing ends of dst */
+ int nlMiddle; /* whole longwords in dst */
+ int xoffSrc, xoffDst;
+ register int nl; /* temp copy of nlMiddle */
+ int careful;
+
+#if (PSZ != 24) || (MROP != 0)
+ register int leftShift, rightShift;
+ register CfbBits bits;
+ register CfbBits bits1;
+#endif
+
+#if PSZ == 24
+#ifdef DO_MEMCPY
+ int w2;
+#endif
+
+#if MROP == 0
+ int widthSrcBytes = cfbGetByteWidth(pSrc);
+ int widthDstBytes = cfbGetByteWidth(pDst);
+#endif
+#endif
+
+ MROP_INITIALIZE(alu,planemask)
+
+ cfbGetLongWidthAndPointer (pSrc, widthSrc, psrcBase)
+
+ cfbGetLongWidthAndPointer (pDst, widthDst, pdstBase)
+
+ /* 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 = REGION_RECTS(prgnDst);
+ nbox = REGION_NUM_RECTS(prgnDst);
+
+ pboxNew1 = NULL;
+ pptNew1 = NULL;
+ pboxNew2 = NULL;
+ pptNew2 = NULL;
+ if (careful && (pptSrc->y < pbox->y1))
+ {
+ /* walk source botttom to top */
+ ydir = -1;
+ widthSrc = -widthSrc;
+ widthDst = -widthDst;
+
+ if (nbox > 1)
+ {
+ /* keep ordering in each band, reverse order of bands */
+ pboxNew1 = (BoxPtr)xalloc(sizeof(BoxRec) * nbox);
+ if(!pboxNew1)
+ return;
+ pptNew1 = (DDXPointPtr)xalloc(sizeof(DDXPointRec) * nbox);
+ if(!pptNew1)
+ {
+ xfree(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)xalloc(sizeof(BoxRec) * nbox);
+ pptNew2 = (DDXPointPtr)xalloc(sizeof(DDXPointRec) * nbox);
+ if(!pboxNew2 || !pptNew2)
+ {
+ if (pptNew2) xfree(pptNew2);
+ if (pboxNew2) xfree(pboxNew2);
+ if (pboxNew1)
+ {
+ xfree(pptNew1);
+ xfree(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;
+ }
+
+ while(nbox--)
+ {
+ w = pbox->x2 - pbox->x1;
+ h = pbox->y2 - pbox->y1;
+
+#if PSZ == 24
+#ifdef DO_MEMCPY
+ w2 = w * BYPP;
+#endif
+#endif
+ if (ydir == -1) /* start at last scanline of rectangle */
+ {
+ psrcLine = psrcBase + ((pptSrc->y+h-1) * -widthSrc);
+ pdstLine = pdstBase + ((pbox->y2-1) * -widthDst);
+ }
+ else /* start at first scanline */
+ {
+ psrcLine = psrcBase + (pptSrc->y * widthSrc);
+ pdstLine = pdstBase + (pbox->y1 * widthDst);
+ }
+#if PSZ == 24
+ if (w == 1 && ((pbox->x1 & PAM) == 0 || (pbox->x1 & PAM) == PAM))
+#else
+ if ((pbox->x1 & PIM) + w <= PPW)
+#endif
+ {
+ maskpartialbits (pbox->x1, w, endmask);
+ startmask = 0;
+ nlMiddle = 0;
+ }
+ else
+ {
+ maskbits(pbox->x1, w, startmask, endmask, nlMiddle);
+ }
+
+#if PSZ == 24
+#if 0
+ nlMiddle = w - (pbox->x2 &PAM);;
+ if(pbox->x1 & PAM){
+ nlMiddle -= (PAM+1 - (pbox->x1 &PAM));
+ }
+ nlMiddle >>= P2WSH;
+ if(nlMiddle < 0)
+ nlMiddle = 0;
+#endif
+#endif
+
+#ifdef DO_MEMCPY
+ /* If the src and dst scanline don't overlap, do forward case. */
+
+ if ((xdir == 1) || (pptSrc->y != pbox->y1)
+ || (pptSrc->x + w <= pbox->x1))
+ {
+#if PSZ == 24
+ char *psrc = (char *) psrcLine + (pptSrc->x * BYPP);
+ char *pdst = (char *) pdstLine + (pbox->x1 * BYPP);
+#else
+ char *psrc = (char *) psrcLine + pptSrc->x;
+ char *pdst = (char *) pdstLine + pbox->x1;
+#endif
+ while (h--)
+ {
+#if PSZ == 24
+ memcpy(pdst, psrc, w2);
+#else
+ memcpy(pdst, psrc, w);
+#endif
+ pdst += widthDst << PWSH;
+ psrc += widthSrc << PWSH;
+ }
+ }
+#else /* ! DO_MEMCPY */
+ if (xdir == 1)
+ {
+#if PSZ == 24 && MROP == 0
+ /* Note: x is a pixel number; the byte offset is 3*x;
+ therefore the offset within a word is (3*x) & 3 ==
+ (4*x-x) & 3 == (-x) & 3. The offsets therefore
+ DECREASE by 1 for each pixel.
+ */
+ xoffSrc = ( - pptSrc->x) & PAM;
+ xoffDst = ( - pbox->x1) & PAM;
+#if 1
+ if((int)xoffSrc != (int)xoffDst /* Alignments must be same. */
+ || ((widthDstBytes & PAM) != (widthSrcBytes & PAM) && h > 1))
+#else
+ if(1)
+#endif
+ /* Width also must be same, if hight > 1 */
+ {
+ /* ...otherwise, pixel by pixel operation */
+ while (h--)
+ {
+ register int i, si, sii, di;
+
+ for (i = 0, si = pptSrc->x, di = pbox->x1;
+ i < w;
+ i++, si++, di++) {
+ psrc = psrcLine + ((si * BYPP) >> P2WSH);
+ pdst = pdstLine + ((di * BYPP) >> P2WSH);
+ sii = (si & 3);
+ MROP_SOLID24P(psrc, pdst, sii, di);
+ }
+ pdstLine += widthDst;
+ psrcLine += widthSrc;
+ }
+ }
+ else
+#endif
+ {
+
+#if PSZ == 24
+
+#if MROP != 0
+ xoffSrc = ( - pptSrc->x) & PAM;
+ xoffDst = ( - pbox->x1) & PAM;
+#endif
+ pdstLine += (pbox->x1 * BYPP) >> P2WSH;
+ psrcLine += (pptSrc->x * BYPP) >> P2WSH;
+#else
+ xoffSrc = pptSrc->x & PIM;
+ xoffDst = pbox->x1 & PIM;
+ pdstLine += (pbox->x1 >> PWSH);
+ psrcLine += (pptSrc->x >> PWSH);
+#endif
+#ifdef DO_UNALIGNED_BITBLT
+ nl = xoffSrc - xoffDst;
+ psrcLine = (CfbBits *)
+ (((unsigned char *) psrcLine) + nl);
+#else
+#if PSZ == 24 && MROP == 0
+ /* alredy satisfied */
+#else
+ if (xoffSrc == xoffDst)
+#endif
+#endif
+ {
+ while (h--)
+ {
+#if PSZ == 24 && MROP == 0
+ register int index;
+ register int im3;
+#endif /* PSZ == 24 && MROP == 0 */
+ psrc = psrcLine;
+ pdst = pdstLine;
+ pdstLine += widthDst;
+ psrcLine += widthSrc;
+#if PSZ == 24 && MROP == 0
+ index = (int)(pdst - pdstBase);
+ im3 = index % 3;
+#endif /* PSZ == 24 && MROP == 0 */
+ if (startmask)
+ {
+#if PSZ == 24 && MROP == 0
+ *pdst = DoMaskMergeRop24u(*psrc, *pdst, startmask, im3);
+ index++;
+ im3 = index % 3;
+#else /* PSZ != 24 || MROP != 0 */
+ *pdst = MROP_MASK(*psrc, *pdst, startmask);
+#endif /* PSZ == 24 && MROP == 0 */
+ psrc++;
+ pdst++;
+ }
+
+ nl = nlMiddle;
+#ifdef LARGE_INSTRUCTION_CACHE
+#ifdef FAST_CONSTANT_OFFSET_MODE
+
+ psrc += nl & (UNROLL-1);
+ pdst += nl & (UNROLL-1);
+
+#if PSZ == 24 && MROP == 0
+#define BodyOdd(n) pdst[-n] = DoMergeRop24u(psrc[-n], pdst[-n], ((int)(pdst - n - pdstBase))%3);
+#define BodyEven(n) pdst[-n] = DoMergeRop24u(psrc[-n], pdst[-n], ((int)(pdst - n - pdstBase))%3);
+#else /* PSZ != 24 || MROP != 0 */
+#define BodyOdd(n) pdst[-n] = MROP_SOLID (psrc[-n], pdst[-n]);
+#define BodyEven(n) pdst[-n] = MROP_SOLID (psrc[-n], pdst[-n]);
+#endif /* PSZ == 24 && MROP == 0 */
+
+#define LoopReset \
+pdst += UNROLL; \
+psrc += UNROLL;
+
+#else
+
+#if PSZ == 24 && MROP == 0
+#define BodyOdd(n) *pdst = DoMergeRop24u(*psrc, *pdst, im3); pdst++; psrc++; index++; im3 = index % 3;
+#define BodyEven(n) BodyOdd(n)
+#else /* PSZ != 24 || MROP != 0 */
+#define BodyOdd(n) *pdst = MROP_SOLID (*psrc, *pdst); pdst++; psrc++;
+#define BodyEven(n) BodyOdd(n)
+#endif /* PSZ == 24 && MROP == 0 */
+
+#define LoopReset ;
+
+#endif
+ PackedLoop
+
+#undef BodyOdd
+#undef BodyEven
+#undef LoopReset
+
+#else
+#ifdef NOTDEF
+ /* you'd think this would be faster --
+ * a single instruction instead of 6
+ * but measurements show it to be ~15% slower
+ */
+ while ((nl -= 6) >= 0)
+ {
+ asm ("moveml %1+,#0x0c0f;moveml#0x0c0f,%0"
+ : "=m" (*(char *)pdst)
+ : "m" (*(char *)psrc)
+ : "d0", "d1", "d2", "d3",
+ "a2", "a3");
+ pdst += 6;
+ }
+ nl += 6;
+ while (nl--)
+ *pdst++ = *psrc++;
+#endif
+#if 0 /*PSZ == 24 && MROP == 0*/
+ DuffL(nl, label1,
+ *pdst = DoMergeRop24u(*psrc, *pdst, im3);
+ pdst++; psrc++; index++;im3 = index % 3;)
+#else /* !(PSZ == 24 && MROP == 0) */
+ DuffL(nl, label1,
+ *pdst = MROP_SOLID (*psrc, *pdst);
+ pdst++; psrc++;)
+#endif /* PSZ == 24 && MROP == 0 */
+#endif
+
+ if (endmask)
+#if PSZ == 24 && MROP == 0
+ *pdst = DoMaskMergeRop24u(*psrc, *pdst, endmask, (int)(pdst - pdstBase) % 3);
+#else /* !(PSZ == 24 && MROP == 0) */
+ *pdst = MROP_MASK(*psrc, *pdst, endmask);
+#endif /* PSZ == 24 && MROP == 0 */
+ }
+ }
+#ifndef DO_UNALIGNED_BITBLT
+#if PSZ == 24 && MROP == 0
+ /* can not happen */
+#else /* !(PSZ == 24 && MROP == 0) */
+ else /* xoffSrc != xoffDst */
+ {
+ if (xoffSrc > xoffDst)
+ {
+#if PSZ == 24
+ leftShift = (xoffSrc - xoffDst) << 3;
+#else
+#if PGSZ == 32
+ leftShift = (xoffSrc - xoffDst) << (5 - PWSH);
+#else /* PGSZ == 64 */
+ leftShift = (xoffSrc - xoffDst) << (6 - PWSH);
+#endif /* PGSZ */
+#endif
+ rightShift = PGSZ - leftShift;
+ }
+ else
+ {
+#if PSZ == 24
+ rightShift = (xoffDst - xoffSrc) << 3;
+#else
+#if PGSZ == 32
+ rightShift = (xoffDst - xoffSrc) << (5 - PWSH);
+#else /* PGSZ == 64 */
+ rightShift = (xoffDst - xoffSrc) << (6 - PWSH);
+#endif /* PGSZ */
+#endif
+ leftShift = PGSZ - rightShift;
+ }
+ while (h--)
+ {
+ psrc = psrcLine;
+ pdst = pdstLine;
+ pdstLine += widthDst;
+ psrcLine += widthSrc;
+ bits = 0;
+ if (xoffSrc > xoffDst)
+ bits = *psrc++;
+ if (startmask)
+ {
+ bits1 = BitLeft(bits,leftShift);
+ bits = *psrc++;
+ bits1 |= BitRight(bits,rightShift);
+ *pdst = MROP_MASK(bits1, *pdst, startmask);
+ pdst++;
+ }
+ nl = nlMiddle;
+#ifdef LARGE_INSTRUCTION_CACHE
+ bits1 = bits;
+
+#ifdef FAST_CONSTANT_OFFSET_MODE
+
+ psrc += nl & (UNROLL-1);
+ pdst += nl & (UNROLL-1);
+
+#define BodyOdd(n) \
+bits = psrc[-n]; \
+pdst[-n] = MROP_SOLID(BitLeft(bits1, leftShift) | BitRight(bits, rightShift), pdst[-n]);
+
+#define BodyEven(n) \
+bits1 = psrc[-n]; \
+pdst[-n] = MROP_SOLID(BitLeft(bits, leftShift) | BitRight(bits1, rightShift), pdst[-n]);
+
+#define LoopReset \
+pdst += UNROLL; \
+psrc += UNROLL;
+
+#else
+
+#define BodyOdd(n) \
+bits = *psrc++; \
+*pdst = MROP_SOLID(BitLeft(bits1, leftShift) | BitRight(bits, rightShift), *pdst); \
+pdst++;
+
+#define BodyEven(n) \
+bits1 = *psrc++; \
+*pdst = MROP_SOLID(BitLeft(bits, leftShift) | BitRight(bits1, rightShift), *pdst); \
+pdst++;
+
+#define LoopReset ;
+
+#endif /* !FAST_CONSTANT_OFFSET_MODE */
+
+ PackedLoop
+
+#undef BodyOdd
+#undef BodyEven
+#undef LoopReset
+
+#else
+ DuffL (nl,label2,
+ bits1 = BitLeft(bits, leftShift);
+ bits = *psrc++;
+ *pdst = MROP_SOLID (bits1 | BitRight(bits, rightShift), *pdst);
+ pdst++;
+ )
+#endif
+
+ if (endmask)
+ {
+ bits1 = BitLeft(bits, leftShift);
+ if (BitLeft(endmask, rightShift))
+ {
+ bits = *psrc;
+ bits1 |= BitRight(bits, rightShift);
+ }
+ *pdst = MROP_MASK (bits1, *pdst, endmask);
+ }
+ }
+ }
+#endif /* (PSZ == 24 && MROP == 0) */
+#endif /* DO_UNALIGNED_BITBLT */
+
+ }
+ }
+#endif /* ! DO_MEMCPY */
+ else /* xdir == -1 */
+ {
+#if PSZ == 24 && MROP == 0
+ xoffSrc = (-(pptSrc->x + w)) & PAM;
+ xoffDst = (-pbox->x2) & PAM;
+#if 1
+ if(xoffSrc != xoffDst /* Alignments must be same. */
+ || ((widthDstBytes & PAM) != (widthSrcBytes & PAM) && h > 1))
+#else
+ if(1)
+#endif
+ /* Width also must be same, if hight > 1 */
+ {
+ /* ...otherwise, pixel by pixel operation */
+ while (h--)
+ {
+ register int i, si, sii, di;
+
+ for (i = 0, si = pptSrc->x + w - 1, di = pbox->x2 - 1;
+ i < w;
+ i++, si--, di--) {
+ psrc = psrcLine + ((si * BYPP) >> P2WSH);
+ pdst = pdstLine + ((di * BYPP) >> P2WSH);
+ sii = (si & PAM);
+ MROP_SOLID24P(psrc, pdst, sii, di);
+ }
+ psrcLine += widthSrc;
+ pdstLine += widthDst;
+ }
+ }else
+#endif /* MROP == 0 && PSZ == 24 */
+ {
+
+#if PSZ == 24
+#if MROP == 0
+ /* already calculated */
+#else
+ xoffSrc = (pptSrc->x + w) & PAM;
+ xoffDst = pbox->x2 & PAM;
+#endif
+ pdstLine += ((pbox->x2 * BYPP - 1) >> P2WSH) + 1;
+ psrcLine += (((pptSrc->x+w) * BYPP - 1) >> P2WSH) + 1;
+#else
+ xoffSrc = (pptSrc->x + w - 1) & PIM;
+ xoffDst = (pbox->x2 - 1) & PIM;
+ pdstLine += ((pbox->x2-1) >> PWSH) + 1;
+ psrcLine += ((pptSrc->x+w - 1) >> PWSH) + 1;
+#endif
+#ifdef DO_UNALIGNED_BITBLT
+#if PSZ == 24
+ nl = xoffDst - xoffSrc;
+#else
+ nl = xoffSrc - xoffDst;
+#endif
+ psrcLine = (CfbBits *)
+ (((unsigned char *) psrcLine) + nl);
+#else
+#if PSZ == 24 && MROP == 0
+ /* already satisfied */
+#else
+ if (xoffSrc == xoffDst)
+#endif
+#endif
+ {
+ while (h--)
+ {
+#if PSZ == 24 && MROP == 0
+ register int index;
+ register int im3;
+#endif /* PSZ == 24 && MROP == 0 */
+ psrc = psrcLine;
+ pdst = pdstLine;
+ pdstLine += widthDst;
+ psrcLine += widthSrc;
+#if PSZ == 24 && MROP == 0
+ index = (int)(pdst - pdstBase);
+#endif /* PSZ == 24 && MROP == 0 */
+
+ if (endmask)
+ {
+ pdst--;
+ psrc--;
+#if PSZ == 24 && MROP == 0
+ index--;
+ im3 = index % 3;
+ *pdst = DoMaskMergeRop24u(*psrc, *pdst, endmask, im3);
+#else /* !(PSZ == 24 && MROP == 0) */
+ *pdst = MROP_MASK (*psrc, *pdst, endmask);
+#endif /* PSZ == 24 && MROP == 0 */
+ }
+ nl = nlMiddle;
+#ifdef LARGE_INSTRUCTION_CACHE
+#ifdef FAST_CONSTANT_OFFSET_MODE
+ psrc -= nl & (UNROLL - 1);
+ pdst -= nl & (UNROLL - 1);
+
+#if PSZ == 24 && MROP == 0
+#define BodyOdd(n) pdst[n-1] = DoMergeRop24u(psrc[n-1], pdst[n-1], ((int)(pdst - (n - 1) -pdstBase)) % 3);
+#else /* !(PSZ == 24 && MROP == 0) */
+#define BodyOdd(n) pdst[n-1] = MROP_SOLID (psrc[n-1], pdst[n-1]);
+#endif /* PSZ == 24 && MROP == 0 */
+
+#define BodyEven(n) BodyOdd(n)
+
+#define LoopReset \
+pdst -= UNROLL;\
+psrc -= UNROLL;
+
+#else
+
+#if PSZ == 24 && MROP == 0
+#define BodyOdd(n) --pdst; --psrc; --index; im3 = index % 3;*pdst = DoMergeRop24u(*psrc, *pdst, im3);
+#else /* !(PSZ == 24 && MROP == 0) */
+#define BodyOdd(n) --pdst; --psrc; *pdst = MROP_SOLID(*psrc, *pdst);
+#endif /* PSZ == 24 && MROP == 0 */
+#define BodyEven(n) BodyOdd(n)
+#define LoopReset ;
+
+#endif
+ PackedLoop
+
+#undef BodyOdd
+#undef BodyEven
+#undef LoopReset
+
+#else
+#if PSZ == 24 && MROP == 0
+ DuffL(nl,label3,
+ --pdst; --psrc; --index; im3= index%3;*pdst = DoMergeRop24u(*psrc, *pdst, im3);)
+#else /* !(PSZ == 24 && MROP == 0) */
+ DuffL(nl,label3,
+ --pdst; --psrc; *pdst = MROP_SOLID (*psrc, *pdst);)
+#endif /* PSZ == 24 && MROP == 0 */
+#endif
+
+ if (startmask)
+ {
+ --pdst;
+ --psrc;
+#if PSZ == 24 && MROP == 0
+ *pdst = DoMaskMergeRop24u(*psrc, *pdst, startmask, (int)(pdst - pdstBase) % 3);
+#else /* !(PSZ == 24 && MROP == 0) */
+ *pdst = MROP_MASK(*psrc, *pdst, startmask);
+#endif /* PSZ == 24 && MROP == 0 */
+ }
+ }
+ }
+#ifndef DO_UNALIGNED_BITBLT
+#if PSZ == 24 && MROP == 0
+ /* can not happen */
+#else /* !( PSZ == 24 && MROP == 0) */
+ else
+ {
+ if (xoffDst > xoffSrc)
+ {
+#if PSZ == 24
+ leftShift = (xoffDst - xoffSrc) << 3;
+ rightShift = PGSZ - leftShift;
+#else
+#if PGSZ == 32
+ rightShift = (xoffDst - xoffSrc) << (5 - PWSH);
+#else /* PGSZ == 64 */
+ rightShift = (xoffDst - xoffSrc) << (6 - PWSH);
+#endif /* PGSZ */
+ leftShift = PGSZ - rightShift;
+#endif
+ }
+ else
+ {
+#if PSZ == 24
+ rightShift = (xoffSrc - xoffDst) << 3;
+ leftShift = PGSZ - rightShift;
+#else
+#if PGSZ == 32
+ leftShift = (xoffSrc - xoffDst) << (5 - PWSH);
+#else /* PGSZ == 64 */
+ leftShift = (xoffSrc - xoffDst) << (6 - PWSH);
+#endif /* PGSZ */
+ rightShift = PGSZ - leftShift;
+#endif
+ }
+ while (h--)
+ {
+ psrc = psrcLine;
+ pdst = pdstLine;
+ pdstLine += widthDst;
+ psrcLine += widthSrc;
+ bits = 0;
+#if PSZ == 24
+ if (xoffSrc > xoffDst)
+#else
+ if (xoffDst > xoffSrc)
+#endif
+ bits = *--psrc;
+ if (endmask)
+ {
+ bits1 = BitRight(bits, rightShift);
+ bits = *--psrc;
+ bits1 |= BitLeft(bits, leftShift);
+ pdst--;
+ *pdst = MROP_MASK(bits1, *pdst, endmask);
+ }
+ nl = nlMiddle;
+#ifdef LARGE_INSTRUCTION_CACHE
+ bits1 = bits;
+#ifdef FAST_CONSTANT_OFFSET_MODE
+ psrc -= nl & (UNROLL - 1);
+ pdst -= nl & (UNROLL - 1);
+
+#define BodyOdd(n) \
+bits = psrc[n-1]; \
+pdst[n-1] = MROP_SOLID(BitRight(bits1, rightShift) | BitLeft(bits, leftShift),pdst[n-1]);
+
+#define BodyEven(n) \
+bits1 = psrc[n-1]; \
+pdst[n-1] = MROP_SOLID(BitRight(bits, rightShift) | BitLeft(bits1, leftShift),pdst[n-1]);
+
+#define LoopReset \
+pdst -= UNROLL; \
+psrc -= UNROLL;
+
+#else
+
+#define BodyOdd(n) \
+bits = *--psrc; --pdst; \
+*pdst = MROP_SOLID(BitRight(bits1, rightShift) | BitLeft(bits, leftShift),*pdst);
+
+#define BodyEven(n) \
+bits1 = *--psrc; --pdst; \
+*pdst = MROP_SOLID(BitRight(bits, rightShift) | BitLeft(bits1, leftShift),*pdst);
+
+#define LoopReset ;
+
+#endif
+
+ PackedLoop
+
+#undef BodyOdd
+#undef BodyEven
+#undef LoopReset
+
+#else
+ DuffL (nl, label4,
+ bits1 = BitRight(bits, rightShift);
+ bits = *--psrc;
+ --pdst;
+ *pdst = MROP_SOLID(bits1 | BitLeft(bits, leftShift),*pdst);
+ )
+#endif
+
+ if (startmask)
+ {
+ bits1 = BitRight(bits, rightShift);
+ if (BitRight (startmask, leftShift))
+ {
+ bits = *--psrc;
+ bits1 |= BitLeft(bits, leftShift);
+ }
+ --pdst;
+ *pdst = MROP_MASK(bits1, *pdst, startmask);
+ }
+ }
+ }
+#endif /* PSZ == 24 && MROP == 0 */
+#endif
+ }
+ }
+ pbox++;
+ pptSrc++;
+ }
+ if (pboxNew2)
+ {
+ xfree(pptNew2);
+ xfree(pboxNew2);
+ }
+ if (pboxNew1)
+ {
+ xfree(pptNew1);
+ xfree(pboxNew1);
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 04:27:59 +0000