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Diffstat (limited to 'xorg-server/mfb/mfbbitblt.c')
| -rw-r--r-- | xorg-server/mfb/mfbbitblt.c | 500 |
1 files changed, 0 insertions, 500 deletions
diff --git a/xorg-server/mfb/mfbbitblt.c b/xorg-server/mfb/mfbbitblt.c deleted file mode 100644 index 344c655ee..000000000 --- a/xorg-server/mfb/mfbbitblt.c +++ /dev/null @@ -1,500 +0,0 @@ -/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */ -/*********************************************************** - -Copyright 1987, 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. - - -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_DIX_CONFIG_H -#include <dix-config.h> -#endif - -#include <X11/X.h> -#include <X11/Xprotostr.h> - -#include <stdlib.h> - -#include "regionstr.h" -#include "gcstruct.h" -#include "windowstr.h" -#include "pixmapstr.h" -#include "scrnintstr.h" - -#include "mi.h" - -#include "mfb.h" -#include "maskbits.h" - - -/* CopyArea and CopyPlane for a monchrome frame buffer - - - clip the source rectangle to the source's available bits. (this -avoids copying unnecessary pieces that will just get exposed anyway.) -this becomes the new shape of the destination. - clip the destination region to the composite clip in the -GC. this requires translating the destination region to (dstx, dsty). - build a list of source points, one for each rectangle in the -destination. this is a simple translation. - go do the multiple rectangle copies - do graphics exposures -*/ -/** Optimized for drawing pixmaps into windows, especially when drawing into - ** unobscured windows. Calls to the general-purpose region code were - ** replaced with rectangle-to-rectangle clipping comparisions. This is - ** possible, since the pixmap is a single rectangle. In an unobscured - ** window, the destination clip is also a single rectangle, and region - ** code can be avoided entirely. This is a big savings, since the region - ** code uses XAlloc() and makes many function calls. - ** - ** In addition, if source is a pixmap, there is no need to call the - ** expensive miHandleExposures() routine. Instead, we simply return NULL. - ** - ** Previously, drawing a pixmap into an unobscured window executed at least - ** 8 XAlloc()'s, 30 function calls, and hundreds of lines of code. - ** - ** Now, the same operation requires no XAlloc()'s, no region function calls, - ** and much less overhead. Nice for drawing lots of small pixmaps. - */ - - -void -mfbDoBitblt (pSrc, pDst, alu, prgnDst, pptSrc) - DrawablePtr pSrc, pDst; - int alu; - RegionPtr prgnDst; - DDXPointPtr pptSrc; -{ - switch (alu) - { - case GXcopy: - mfbDoBitbltCopy (pSrc, pDst, alu, prgnDst, pptSrc); - break; - case GXxor: - mfbDoBitbltXor (pSrc, pDst, alu, prgnDst, pptSrc); - break; - case GXcopyInverted: - mfbDoBitbltCopyInverted (pSrc, pDst, alu, prgnDst, pptSrc); - break; - case GXor: - mfbDoBitbltOr (pSrc, pDst, alu, prgnDst, pptSrc); - break; - default: - mfbDoBitbltGeneral (pSrc, pDst, alu, prgnDst, pptSrc); - break; - } -} - -RegionPtr -mfbCopyArea(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 */ - void (*localDoBitBlt)( - DrawablePtr /*pSrc*/, - DrawablePtr /*pDst*/, - int /*alu*/, - RegionPtr /*prgnDst*/, - DDXPointPtr /*pptSrc*/); - - 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); - } - - switch (pGC->alu) { - case GXcopy: - localDoBitBlt = mfbDoBitbltCopy; - break; - case GXcopyInverted: - localDoBitBlt = mfbDoBitbltCopyInverted; - break; - case GXxor: - localDoBitBlt = mfbDoBitbltXor; - break; - case GXor: - localDoBitBlt = mfbDoBitbltOr; - break; - default: - localDoBitBlt = mfbDoBitbltGeneral; - break; - } - - 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; - } - - if (pGC->planemask & 1) - (*localDoBitBlt) (pSrcDrawable, pDstDrawable, pGC->alu, &rgnDst, pptSrc); - - 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; -} - - -/* - * Devices which use mfb for 1-bit pixmap support - * must register a function for n-to-1 copy operations - */ - -static DevPrivateKey copyPlaneScreenKey = ©PlaneScreenKey; - -Bool -mfbRegisterCopyPlaneProc (pScreen, proc) - ScreenPtr pScreen; - RegionPtr (*proc)( - DrawablePtr /* pSrcDrawable */, - DrawablePtr /* pDstDrawable */, - GCPtr /* pGC */, - int /* srcx */, - int /* srcy */, - int /* width */, - int /* height */, - int /* dstx */, - int /* dsty */, - unsigned long /* bitPlane */); -{ - dixSetPrivate(&pScreen->devPrivates, copyPlaneScreenKey, proc); - return TRUE; -} - -/* - if fg == 1 and bg ==0, we can do an ordinary CopyArea. - if fg == bg, we can do a CopyArea with alu = mfbReduceRop(alu, fg) - if fg == 0 and bg == 1, we use the same rasterop, with - source operand inverted. - - CopyArea deals with all of the graphics exposure events. - This code depends on knowing that we can change the -alu in the GC without having to call ValidateGC() before calling -CopyArea(). - -*/ - - -RegionPtr -mfbCopyPlane(pSrcDrawable, pDstDrawable, - pGC, srcx, srcy, width, height, dstx, dsty, plane) -DrawablePtr pSrcDrawable, pDstDrawable; -register GC *pGC; -int srcx, srcy; -int width, height; -int dstx, dsty; -unsigned long plane; -{ - int alu; - RegionPtr prgnExposed; - RegionPtr (*copyPlane)( - DrawablePtr /* pSrcDrawable */, - DrawablePtr /* pDstDrawable */, - GCPtr /* pGC */, - int /* srcx */, - int /* srcy */, - int /* width */, - int /* height */, - int /* dstx */, - int /* dsty */, - unsigned long /* bitPlane */); - - - if (pSrcDrawable->depth != 1) - { - if ((copyPlane = dixLookupPrivate(&pSrcDrawable->pScreen->devPrivates, - copyPlaneScreenKey))) - { - return (*copyPlane) (pSrcDrawable, pDstDrawable, - pGC, srcx, srcy, width, height, dstx, dsty, plane); - } - else - { - FatalError ("No copyPlane proc registered for depth %d\n", - pSrcDrawable->depth); - } - } - if (plane != 1) - return NULL; - - if ((pGC->fgPixel & 1) == 1 && (pGC->bgPixel & 1) == 0) - { - prgnExposed = (*pGC->ops->CopyArea)(pSrcDrawable, pDstDrawable, - pGC, srcx, srcy, width, height, dstx, dsty); - } - else if ((pGC->fgPixel & 1) == (pGC->bgPixel & 1)) - { - alu = pGC->alu; - pGC->alu = mfbReduceRop(pGC->alu, pGC->fgPixel); - prgnExposed = (*pGC->ops->CopyArea)(pSrcDrawable, pDstDrawable, - pGC, srcx, srcy, width, height, dstx, dsty); - pGC->alu = alu; - } - else /* need to invert the src */ - { - alu = pGC->alu; - pGC->alu = InverseAlu[alu]; - prgnExposed = (*pGC->ops->CopyArea)(pSrcDrawable, pDstDrawable, - pGC, srcx, srcy, width, height, dstx, dsty); - pGC->alu = alu; - } - return prgnExposed; -} - |