diff options
Diffstat (limited to 'cfb/cfbbitblt.c')
| -rw-r--r-- | cfb/cfbbitblt.c | 372 |
1 files changed, 327 insertions, 45 deletions
diff --git a/cfb/cfbbitblt.c b/cfb/cfbbitblt.c index 595d68c66..18f90f1fd 100644 --- a/cfb/cfbbitblt.c +++ b/cfb/cfbbitblt.c @@ -2,7 +2,7 @@ * cfb copy area */ -/* $XFree86: xc/programs/Xserver/cfb/cfbbitblt.c,v 1.14 2001/12/14 19:59:21 dawes Exp $ */ +/* $XFree86: xc/programs/Xserver/cfb/cfbbitblt.c,v 1.20 2003/11/10 18:21:44 tsi Exp $ */ /* @@ -68,17 +68,23 @@ static unsigned int FgPixel, BgPixel; # endif #endif +/* cfbBitBltcfb == cfbCopyPlaneExpand */ RegionPtr -cfbBitBlt (pSrcDrawable, pDstDrawable, - pGC, srcx, srcy, width, height, dstx, dsty, doBitBlt, bitPlane) - register DrawablePtr pSrcDrawable; - register DrawablePtr pDstDrawable; - GC *pGC; - int srcx, srcy; - int width, height; - int dstx, dsty; - void (*doBitBlt)(); - unsigned long bitPlane; +cfbBitBlt ( + register DrawablePtr pSrcDrawable, + register DrawablePtr pDstDrawable, + GC *pGC, + int srcx, int srcy, + int width, int height, + int dstx, int dsty, + void (*doBitBlt)( + DrawablePtr /*pSrc*/, + DrawablePtr /*pDst*/, + int /*alu*/, + RegionPtr /*prgnDst*/, + DDXPointPtr /*pptSrc*/, + unsigned long /*planemask*/), + unsigned long bitPlane) { RegionPtr prgnSrcClip = NULL; /* may be a new region, or just a copy */ Bool freeSrcClip = FALSE; @@ -254,7 +260,7 @@ cfbBitBlt (pSrcDrawable, pDstDrawable, /* Check to see if the region is empty */ if (fastBox.x1 >= fastBox.x2 || fastBox.y1 >= fastBox.y2) { - REGION_INIT(pGC->pScreen, &rgnDst, NullBox, 0); + REGION_NULL(pGC->pScreen, &rgnDst); } else { @@ -302,15 +308,276 @@ cfbBitBlt (pSrcDrawable, pDstDrawable, ppt->y = pbox->y1 + dy; } - (*doBitBlt) (pSrcDrawable, pDstDrawable, pGC->alu, &rgnDst, pptSrc, pGC->planemask, bitPlane); + (*doBitBlt) (pSrcDrawable, pDstDrawable, pGC->alu, &rgnDst, pptSrc, pGC->planemask); DEALLOCATE_LOCAL(pptSrc); } prgnExposed = NULL; if (pGC->fExpose) { - extern RegionPtr miHandleExposures(); + /* Pixmap sources generate a NoExposed (we return NULL to do this) */ + if (!fastExpose) + prgnExposed = + miHandleExposures(pSrcDrawable, pDstDrawable, pGC, + origSource.x, origSource.y, + (int)origSource.width, + (int)origSource.height, + origDest.x, origDest.y, bitPlane); + } + REGION_UNINIT(pGC->pScreen, &rgnDst); + if (freeSrcClip) + REGION_DESTROY(pGC->pScreen, prgnSrcClip); + return prgnExposed; +} + + +RegionPtr +cfbCopyPlaneReduce ( + register DrawablePtr pSrcDrawable, + register DrawablePtr pDstDrawable, + GC *pGC, + int srcx, int srcy, + int width, int height, + int dstx, int dsty, + void (*doCopyPlane)( + DrawablePtr /*pSrc*/, + DrawablePtr /*pDst*/, + int /*alu*/, + RegionPtr /*prgnDst*/, + DDXPointPtr /*pptSrc*/, + unsigned long /*planemask*/, + unsigned long /*bitPlane*/), + unsigned long bitPlane) +{ + RegionPtr prgnSrcClip = NULL; /* may be a new region, or just a copy */ + Bool freeSrcClip = FALSE; + + RegionPtr prgnExposed; + RegionRec rgnDst; + DDXPointPtr pptSrc; + register DDXPointPtr ppt; + register BoxPtr pbox; + int i; + register int dx; + register int dy; + xRectangle origSource; + DDXPointRec origDest; + int numRects; + BoxRec fastBox; + int fastClip = 0; /* for fast clipping with pixmap source */ + int fastExpose = 0; /* for fast exposures with pixmap source */ + + origSource.x = srcx; + origSource.y = srcy; + origSource.width = width; + origSource.height = height; + origDest.x = dstx; + origDest.y = dsty; + + if ((pSrcDrawable != pDstDrawable) && + pSrcDrawable->pScreen->SourceValidate) + { + (*pSrcDrawable->pScreen->SourceValidate) (pSrcDrawable, srcx, srcy, width, height); + } + + srcx += pSrcDrawable->x; + srcy += pSrcDrawable->y; + + /* clip the source */ + + if (pSrcDrawable->type == DRAWABLE_PIXMAP) + { + if ((pSrcDrawable == pDstDrawable) && + (pGC->clientClipType == CT_NONE)) + { + prgnSrcClip = cfbGetCompositeClip(pGC); + } + else + { + fastClip = 1; + } + } + else + { + if (pGC->subWindowMode == IncludeInferiors) + { + /* + * XFree86 DDX empties the border clip when the + * VT is inactive + */ + if (!((WindowPtr) pSrcDrawable)->parent && + REGION_NOTEMPTY (pSrcDrawable->pScreen, + &((WindowPtr) pSrcDrawable)->borderClip)) + { + /* + * special case bitblt from root window in + * IncludeInferiors mode; just like from a pixmap + */ + fastClip = 1; + } + else if ((pSrcDrawable == pDstDrawable) && + (pGC->clientClipType == CT_NONE)) + { + prgnSrcClip = cfbGetCompositeClip(pGC); + } + else + { + prgnSrcClip = NotClippedByChildren((WindowPtr)pSrcDrawable); + freeSrcClip = TRUE; + } + } + else + { + prgnSrcClip = &((WindowPtr)pSrcDrawable)->clipList; + } + } + + fastBox.x1 = srcx; + fastBox.y1 = srcy; + fastBox.x2 = srcx + width; + fastBox.y2 = srcy + height; + + /* Don't create a source region if we are doing a fast clip */ + if (fastClip) + { + fastExpose = 1; + /* + * clip the source; if regions extend beyond the source size, + * make sure exposure events get sent + */ + if (fastBox.x1 < pSrcDrawable->x) + { + fastBox.x1 = pSrcDrawable->x; + fastExpose = 0; + } + if (fastBox.y1 < pSrcDrawable->y) + { + fastBox.y1 = pSrcDrawable->y; + fastExpose = 0; + } + if (fastBox.x2 > pSrcDrawable->x + (int) pSrcDrawable->width) + { + fastBox.x2 = pSrcDrawable->x + (int) pSrcDrawable->width; + fastExpose = 0; + } + if (fastBox.y2 > pSrcDrawable->y + (int) pSrcDrawable->height) + { + fastBox.y2 = pSrcDrawable->y + (int) pSrcDrawable->height; + fastExpose = 0; + } + } + else + { + REGION_INIT(pGC->pScreen, &rgnDst, &fastBox, 1); + REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst, prgnSrcClip); + } + + dstx += pDstDrawable->x; + dsty += pDstDrawable->y; + + if (pDstDrawable->type == DRAWABLE_WINDOW) + { + if (!((WindowPtr)pDstDrawable)->realized) + { + if (!fastClip) + REGION_UNINIT(pGC->pScreen, &rgnDst); + if (freeSrcClip) + REGION_DESTROY(pGC->pScreen, prgnSrcClip); + return NULL; + } + } + + dx = srcx - dstx; + dy = srcy - dsty; + + /* Translate and clip the dst to the destination composite clip */ + if (fastClip) + { + RegionPtr cclip; + + /* Translate the region directly */ + fastBox.x1 -= dx; + fastBox.x2 -= dx; + fastBox.y1 -= dy; + fastBox.y2 -= dy; + /* If the destination composite clip is one rectangle we can + do the clip directly. Otherwise we have to create a full + blown region and call intersect */ + + /* XXX because CopyPlane uses this routine for 8-to-1 bit + * copies, this next line *must* also correctly fetch the + * composite clip from an mfb gc + */ + + cclip = cfbGetCompositeClip(pGC); + if (REGION_NUM_RECTS(cclip) == 1) + { + BoxPtr pBox = REGION_RECTS(cclip); + + if (fastBox.x1 < pBox->x1) fastBox.x1 = pBox->x1; + if (fastBox.x2 > pBox->x2) fastBox.x2 = pBox->x2; + if (fastBox.y1 < pBox->y1) fastBox.y1 = pBox->y1; + if (fastBox.y2 > pBox->y2) fastBox.y2 = pBox->y2; + + /* Check to see if the region is empty */ + if (fastBox.x1 >= fastBox.x2 || fastBox.y1 >= fastBox.y2) + { + REGION_NULL(pGC->pScreen, &rgnDst); + } + else + { + REGION_INIT(pGC->pScreen, &rgnDst, &fastBox, 1); + } + } + else + { + /* We must turn off fastClip now, since we must create + a full blown region. It is intersected with the + composite clip below. */ + fastClip = 0; + REGION_INIT(pGC->pScreen, &rgnDst, &fastBox, 1); + } + } + else + { + REGION_TRANSLATE(pGC->pScreen, &rgnDst, -dx, -dy); + } + + if (!fastClip) + { + REGION_INTERSECT(pGC->pScreen, &rgnDst, + &rgnDst, + cfbGetCompositeClip(pGC)); + } + + /* Do bit blitting */ + numRects = REGION_NUM_RECTS(&rgnDst); + if (numRects && width && height) + { + if(!(pptSrc = (DDXPointPtr)ALLOCATE_LOCAL(numRects * + sizeof(DDXPointRec)))) + { + REGION_UNINIT(pGC->pScreen, &rgnDst); + if (freeSrcClip) + REGION_DESTROY(pGC->pScreen, prgnSrcClip); + return NULL; + } + pbox = REGION_RECTS(&rgnDst); + ppt = pptSrc; + for (i = numRects; --i >= 0; pbox++, ppt++) + { + ppt->x = pbox->x1 + dx; + ppt->y = pbox->y1 + dy; + } + + (*doCopyPlane) (pSrcDrawable, pDstDrawable, pGC->alu, &rgnDst, pptSrc, pGC->planemask, bitPlane); + DEALLOCATE_LOCAL(pptSrc); + } + + prgnExposed = NULL; + if (pGC->fExpose) + { /* Pixmap sources generate a NoExposed (we return NULL to do this) */ if (!fastExpose) prgnExposed = @@ -335,21 +602,29 @@ cfbDoBitblt (pSrc, pDst, alu, prgnDst, pptSrc, planemask) DDXPointPtr pptSrc; unsigned long planemask; { - void (*blt)() = cfbDoBitbltGeneral; + void (*doBitBlt)( + DrawablePtr /*pSrc*/, + DrawablePtr /*pDst*/, + int /*alu*/, + RegionPtr /*prgnDst*/, + DDXPointPtr /*pptSrc*/, + unsigned long /*planemask*/) + = cfbDoBitbltGeneral; + if ((planemask & PMSK) == PMSK) { switch (alu) { case GXcopy: - blt = cfbDoBitbltCopy; + doBitBlt = cfbDoBitbltCopy; break; case GXxor: - blt = cfbDoBitbltXor; + doBitBlt = cfbDoBitbltXor; break; case GXor: - blt = cfbDoBitbltOr; + doBitBlt = cfbDoBitbltOr; break; } } - (*blt) (pSrc, pDst, alu, prgnDst, pptSrc, planemask); + (*doBitBlt) (pSrc, pDst, alu, prgnDst, pptSrc, planemask); } RegionPtr @@ -362,7 +637,13 @@ cfbCopyArea(pSrcDrawable, pDstDrawable, int width, height; int dstx, dsty; { - void (*doBitBlt) (); + void (*doBitBlt) ( + DrawablePtr /*pSrc*/, + DrawablePtr /*pDst*/, + int /*alu*/, + RegionPtr /*prgnDst*/, + DDXPointPtr /*pptSrc*/, + unsigned long /*planemask*/); doBitBlt = cfbDoBitbltCopy; if (pGC->alu != GXcopy || (pGC->planemask & PMSK) != PMSK) @@ -386,18 +667,17 @@ cfbCopyArea(pSrcDrawable, pDstDrawable, #if PSZ == 8 void -cfbCopyPlane1to8 (pSrcDrawable, pDstDrawable, rop, prgnDst, pptSrc, planemask, bitPlane) +cfbCopyPlane1to8 (pSrcDrawable, pDstDrawable, rop, prgnDst, pptSrc, planemask) DrawablePtr pSrcDrawable; /* must be a bitmap */ DrawablePtr pDstDrawable; /* must be depth 8 drawable */ int rop; /* not used; caller must call cfb8CheckOpaqueStipple * beforehand to get cfb8StippleRRop set correctly */ - unsigned long planemask; /* to apply to destination writes */ RegionPtr prgnDst; /* region in destination to draw to; * screen relative coords. if dest is a window; * drawable relative if dest is a pixmap */ DDXPointPtr pptSrc; /* drawable relative src coords to copy from; * must be one point for each box in prgnDst */ - unsigned long bitPlane; /* not used; assumed always to be 1 */ + unsigned long planemask; /* to apply to destination writes */ { int srcx, srcy; /* upper left corner of box being copied in source */ int dstx, dsty; /* upper left corner of box being copied in dest */ @@ -718,26 +998,23 @@ cfbCopyPlane1to8 (pSrcDrawable, pDstDrawable, rop, prgnDst, pptSrc, planemask, b /******************************************************************/ -void +static void #if PSZ == 16 -cfbCopyPlane1to16 (pSrcDrawable, pDstDrawable, rop, prgnDst, pptSrc, - planemask, bitPlane) +cfbCopyPlane1to16 #endif #if PSZ == 24 -cfbCopyPlane1to24 (pSrcDrawable, pDstDrawable, rop, prgnDst, pptSrc, - planemask, bitPlane) +cfbCopyPlane1to24 #endif #if PSZ == 32 -cfbCopyPlane1to32 (pSrcDrawable, pDstDrawable, rop, prgnDst, pptSrc, - planemask, bitPlane) +cfbCopyPlane1to32 #endif - DrawablePtr pSrcDrawable; - DrawablePtr pDstDrawable; - int rop; - unsigned long planemask; - RegionPtr prgnDst; - DDXPointPtr pptSrc; - unsigned long bitPlane; +( + DrawablePtr pSrcDrawable, + DrawablePtr pDstDrawable, + int rop, + RegionPtr prgnDst, + DDXPointPtr pptSrc, + unsigned long planemask) { int srcx, srcy, dstx, dsty; int width, height; @@ -1078,13 +1355,19 @@ RegionPtr cfbCopyPlane(pSrcDrawable, pDstDrawable, #if IMAGE_BYTE_ORDER == LSBFirst - void (*doBitBlt)(); + void (*doCopyPlaneExpand)( + DrawablePtr /*pSrc*/, + DrawablePtr /*pDst*/, + int /*alu*/, + RegionPtr /*prgnDst*/, + DDXPointPtr /*pptSrc*/, + unsigned long /*planemask*/); if (pSrcDrawable->bitsPerPixel == 1 && pDstDrawable->bitsPerPixel == PSZ) { if (bitPlane == 1) { - doBitBlt = cfbCopyPlane1toN; + doCopyPlaneExpand = cfbCopyPlane1toN; #if PSZ == 8 cfb8CheckOpaqueStipple (pGC->alu, pGC->fgPixel, pGC->bgPixel, @@ -1093,8 +1376,8 @@ RegionPtr cfbCopyPlane(pSrcDrawable, pDstDrawable, FgPixel = pGC->fgPixel; BgPixel = pGC->bgPixel; #endif - ret = cfbBitBlt (pSrcDrawable, pDstDrawable, - pGC, srcx, srcy, width, height, dstx, dsty, doBitBlt, bitPlane); + ret = cfbCopyPlaneExpand (pSrcDrawable, pDstDrawable, + pGC, srcx, srcy, width, height, dstx, dsty, doCopyPlaneExpand, bitPlane); } else ret = miHandleExposures (pSrcDrawable, pDstDrawable, @@ -1102,7 +1385,6 @@ RegionPtr cfbCopyPlane(pSrcDrawable, pDstDrawable, } else if (pSrcDrawable->bitsPerPixel == PSZ && pDstDrawable->bitsPerPixel == 1) { - extern int InverseAlu[16]; int oldalu; oldalu = pGC->alu; @@ -1110,7 +1392,7 @@ RegionPtr cfbCopyPlane(pSrcDrawable, pDstDrawable, pGC->alu = InverseAlu[pGC->alu]; else if ((pGC->fgPixel & 1) == (pGC->bgPixel & 1)) pGC->alu = mfbReduceRop(pGC->alu, pGC->fgPixel); - ret = cfbBitBlt (pSrcDrawable, pDstDrawable, + ret = cfbCopyPlaneReduce(pSrcDrawable, pDstDrawable, pGC, srcx, srcy, width, height, dstx, dsty, cfbCopyPlaneNto1, bitPlane); pGC->alu = oldalu; @@ -1137,7 +1419,7 @@ RegionPtr cfbCopyPlane(pSrcDrawable, pDstDrawable, */ ValidateGC ((DrawablePtr) pBitmap, pGC1); /* no exposures here, scratch GC's don't get graphics expose */ - (void) cfbBitBlt (pSrcDrawable, (DrawablePtr) pBitmap, + cfbCopyPlaneReduce(pSrcDrawable, (DrawablePtr) pBitmap, pGC1, srcx, srcy, width, height, 0, 0, cfbCopyPlaneNto1, bitPlane); #if PSZ == 8 @@ -1149,7 +1431,7 @@ RegionPtr cfbCopyPlane(pSrcDrawable, pDstDrawable, BgPixel = pGC->bgPixel; #endif /* no exposures here, copy bits from inside a pixmap */ - (void) cfbBitBlt ((DrawablePtr) pBitmap, pDstDrawable, pGC, + cfbCopyPlaneExpand((DrawablePtr) pBitmap, pDstDrawable, pGC, 0, 0, width, height, dstx, dsty, cfbCopyPlane1toN, 1); FreeScratchGC (pGC1); (*pScreen->DestroyPixmap) (pBitmap); |