diff options
Diffstat (limited to 'xorg-server/hw/xfree86/xf4bpp/ppcCpArea.c')
| -rw-r--r-- | xorg-server/hw/xfree86/xf4bpp/ppcCpArea.c | 470 |
1 files changed, 470 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/xf4bpp/ppcCpArea.c b/xorg-server/hw/xfree86/xf4bpp/ppcCpArea.c new file mode 100644 index 000000000..9bdaf89e3 --- /dev/null +++ b/xorg-server/hw/xfree86/xf4bpp/ppcCpArea.c @@ -0,0 +1,470 @@ +/* + * Copyright IBM Corporation 1987,1988,1989 + * + * All Rights Reserved + * + * Permission to use, copy, modify, and distribute this software and its + * documentation for any purpose and without fee is hereby granted, + * provided that the above copyright notice appear in all copies and that + * both that copyright notice and this permission notice appear in + * supporting documentation, and that the name of IBM not be + * used in advertising or publicity pertaining to distribution of the + * software without specific, written prior permission. + * + * IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING + * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL + * IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR + * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, + * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, + * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS + * SOFTWARE. + * +*/ + +/*********************************************************** +Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts. + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation, and that the name of Digital not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS +SOFTWARE. + +******************************************************************/ + +#ifdef HAVE_XORG_CONFIG_H +#include <xorg-config.h> +#endif + +#include <stdlib.h> + +#include "xf4bpp.h" +#include "mfbmap.h" +#define PSZ 8 +#include "mfb.h" +#include "mergerop.h" +#include "mi.h" +#include "pixmapstr.h" +#include "scrnintstr.h" + +/* + * Graft in the DoBitblt from cfb. It does everything correctly. + */ +static void +vga16DoBitblt +( + DrawablePtr pSrc, + DrawablePtr pDst, + int alu, + RegionPtr prgnDst, + DDXPointPtr pptSrc, + unsigned long planemask +) +{ + 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 careful; + + widthSrc = mfbGetPixelWidth(pSrc); + widthDst = mfbGetPixelWidth(pDst); + + /* 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 */ + 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; + } + } + + if (careful && (pptSrc->x < pbox->x1)) + { + 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; + } + } + + while(nbox--) + { + w = pbox->x2 - pbox->x1; + h = pbox->y2 - pbox->y1; + + if( pSrc->type == DRAWABLE_WINDOW ) + xf4bppBitBlt( (WindowPtr)pDst, alu, planemask, + pptSrc->x, /* x0 */ + pptSrc->y, /* y0 */ + pbox->x1, /* x1 */ + pbox->y1, /* y1 */ + w, h ); /* w, h */ + else /* DRAWABLE_PIXMAP */ + xf4bppDrawColorImage( (WindowPtr)pDst, + pbox->x1, pbox->y1, + w, + h, + ((unsigned char *)((PixmapPtr)pSrc)->devPrivate.ptr + + pptSrc->x + (pptSrc->y*((PixmapPtr)pSrc)->devKind)), + ((PixmapPtr)pSrc)->devKind, + alu, planemask ) ; + pbox++; + pptSrc++; + } + if (pboxNew2) + { + xfree(pptNew2); + xfree(pboxNew2); + } + if (pboxNew1) + { + xfree(pptNew1); + xfree(pboxNew1); + } +} + + +/* + * Graft in the CopyArea from mfb/cfb. It does everything correctly. + */ + +RegionPtr +xf4bppCopyArea(pSrcDrawable, pDstDrawable, + pGC, srcx, srcy, width, height, dstx, dsty) +register DrawablePtr pSrcDrawable; +register DrawablePtr pDstDrawable; +register GC *pGC; +int srcx, srcy; +int width, height; +int dstx, dsty; +{ + 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 */ + + if ( pDstDrawable->type != DRAWABLE_WINDOW ) + return miCopyArea( pSrcDrawable, pDstDrawable, pGC, + srcx, srcy, width, height, dstx, dsty ) ; + + /* Begin code from mfb/cfbCopyArea */ + + 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 = pGC->pCompositeClip; + } + else + { + fastClip = 1; + } + } + else + { + if (pGC->subWindowMode == IncludeInferiors) + { + if (!((WindowPtr) pSrcDrawable)->parent) + { + /* + * 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 = pGC->pCompositeClip; + } + 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 */ + cclip = pGC->pCompositeClip; + 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, pGC->pCompositeClip); + } + + /* Do bit blitting */ + numRects = REGION_NUM_RECTS(&rgnDst); + if (numRects && width && height) + { + if(!(pptSrc = (DDXPointPtr)xalloc(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; + } + + vga16DoBitblt(pSrcDrawable, pDstDrawable, pGC->alu, + &rgnDst, pptSrc, pGC->planemask ); + xfree(pptSrc); + } + + prgnExposed = NULL; + if (pGC->fExpose) + { + /* 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, (unsigned long)0); + } + REGION_UNINIT(pGC->pScreen, &rgnDst); + if (freeSrcClip) + REGION_DESTROY(pGC->pScreen, prgnSrcClip); + return prgnExposed; +} |