777 lines
27 KiB
C
777 lines
27 KiB
C
/***********************************************************
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Copyright 1987, 1998 The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its
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documentation for any purpose and without fee is hereby granted,
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in
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supporting documentation, and that the name of Digital not be
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used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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SOFTWARE.
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******************************************************************/
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/* Author: Todd Newman (aided and abetted by Mr. Drewry) */
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <X11/X.h>
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#include <X11/Xprotostr.h>
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#include "misc.h"
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#include "gcstruct.h"
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#include "pixmapstr.h"
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#include "windowstr.h"
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#include "scrnintstr.h"
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#include "mi.h"
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#include "regionstr.h"
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#include <X11/Xmd.h>
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#include "servermd.h"
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#ifndef HAVE_FFS
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extern int ffs(int);
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#endif
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/* MICOPYAREA -- public entry for the CopyArea request
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* For each rectangle in the source region
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* get the pixels with GetSpans
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* set them in the destination with SetSpans
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* We let SetSpans worry about clipping to the destination.
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*/
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RegionPtr
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miCopyArea(DrawablePtr pSrcDrawable,
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DrawablePtr pDstDrawable,
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GCPtr pGC,
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int xIn, int yIn, int widthSrc, int heightSrc, int xOut, int yOut)
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{
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DDXPointPtr ppt, pptFirst;
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unsigned int *pwidthFirst, *pwidth, *pbits;
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BoxRec srcBox, *prect;
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/* may be a new region, or just a copy */
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RegionPtr prgnSrcClip;
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/* non-0 if we've created a src clip */
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RegionPtr prgnExposed;
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int realSrcClip = 0;
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int srcx, srcy, dstx, dsty, i, j, y, width, height, xMin, xMax, yMin, yMax;
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unsigned int *ordering;
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int numRects;
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BoxPtr boxes;
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srcx = xIn + pSrcDrawable->x;
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srcy = yIn + pSrcDrawable->y;
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/* If the destination isn't realized, this is easy */
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if (pDstDrawable->type == DRAWABLE_WINDOW &&
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!((WindowPtr) pDstDrawable)->realized)
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return NULL;
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/* clip the source */
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if (pSrcDrawable->type == DRAWABLE_PIXMAP) {
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BoxRec box;
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box.x1 = pSrcDrawable->x;
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box.y1 = pSrcDrawable->y;
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box.x2 = pSrcDrawable->x + (int) pSrcDrawable->width;
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box.y2 = pSrcDrawable->y + (int) pSrcDrawable->height;
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prgnSrcClip = RegionCreate(&box, 1);
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realSrcClip = 1;
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}
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else {
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if (pGC->subWindowMode == IncludeInferiors) {
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prgnSrcClip = NotClippedByChildren((WindowPtr) pSrcDrawable);
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realSrcClip = 1;
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}
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else
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prgnSrcClip = &((WindowPtr) pSrcDrawable)->clipList;
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}
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/* If the src drawable is a window, we need to translate the srcBox so
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* that we can compare it with the window's clip region later on. */
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srcBox.x1 = srcx;
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srcBox.y1 = srcy;
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srcBox.x2 = srcx + widthSrc;
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srcBox.y2 = srcy + heightSrc;
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dstx = xOut;
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dsty = yOut;
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if (pGC->miTranslate) {
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dstx += pDstDrawable->x;
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dsty += pDstDrawable->y;
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}
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pptFirst = ppt = malloc(heightSrc * sizeof(DDXPointRec));
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pwidthFirst = pwidth = malloc(heightSrc * sizeof(unsigned int));
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numRects = RegionNumRects(prgnSrcClip);
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boxes = RegionRects(prgnSrcClip);
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ordering = malloc(numRects * sizeof(unsigned int));
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if (!pptFirst || !pwidthFirst || !ordering) {
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free(ordering);
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free(pwidthFirst);
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free(pptFirst);
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return NULL;
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}
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/* If not the same drawable then order of move doesn't matter.
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Following assumes that boxes are sorted from top
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to bottom and left to right.
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*/
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if ((pSrcDrawable != pDstDrawable) &&
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((pGC->subWindowMode != IncludeInferiors) ||
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(pSrcDrawable->type == DRAWABLE_PIXMAP) ||
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(pDstDrawable->type == DRAWABLE_PIXMAP)))
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for (i = 0; i < numRects; i++)
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ordering[i] = i;
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else { /* within same drawable, must sequence moves carefully! */
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if (dsty <= srcBox.y1) { /* Scroll up or stationary vertical.
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Vertical order OK */
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if (dstx <= srcBox.x1) /* Scroll left or stationary horizontal.
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Horizontal order OK as well */
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for (i = 0; i < numRects; i++)
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ordering[i] = i;
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else { /* scroll right. must reverse horizontal banding of rects. */
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for (i = 0, j = 1, xMax = 0; i < numRects; j = i + 1, xMax = i) {
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/* find extent of current horizontal band */
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y = boxes[i].y1; /* band has this y coordinate */
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while ((j < numRects) && (boxes[j].y1 == y))
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j++;
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/* reverse the horizontal band in the output ordering */
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for (j--; j >= xMax; j--, i++)
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ordering[i] = j;
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}
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}
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}
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else { /* Scroll down. Must reverse vertical banding. */
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if (dstx < srcBox.x1) { /* Scroll left. Horizontal order OK. */
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for (i = numRects - 1, j = i - 1, yMin = i, yMax = 0;
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i >= 0; j = i - 1, yMin = i) {
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/* find extent of current horizontal band */
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y = boxes[i].y1; /* band has this y coordinate */
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while ((j >= 0) && (boxes[j].y1 == y))
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j--;
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/* reverse the horizontal band in the output ordering */
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for (j++; j <= yMin; j++, i--, yMax++)
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ordering[yMax] = j;
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}
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}
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else /* Scroll right or horizontal stationary.
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Reverse horizontal order as well (if stationary, horizontal
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order can be swapped without penalty and this is faster
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to compute). */
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for (i = 0, j = numRects - 1; i < numRects; i++, j--)
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ordering[i] = j;
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}
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}
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for (i = 0; i < numRects; i++) {
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prect = &boxes[ordering[i]];
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xMin = max(prect->x1, srcBox.x1);
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xMax = min(prect->x2, srcBox.x2);
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yMin = max(prect->y1, srcBox.y1);
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yMax = min(prect->y2, srcBox.y2);
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/* is there anything visible here? */
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if (xMax <= xMin || yMax <= yMin)
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continue;
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ppt = pptFirst;
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pwidth = pwidthFirst;
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y = yMin;
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height = yMax - yMin;
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width = xMax - xMin;
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for (j = 0; j < height; j++) {
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/* We must untranslate before calling GetSpans */
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ppt->x = xMin;
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ppt++->y = y++;
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*pwidth++ = width;
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}
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pbits = malloc(height * PixmapBytePad(width, pSrcDrawable->depth));
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if (pbits) {
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(*pSrcDrawable->pScreen->GetSpans) (pSrcDrawable, width, pptFirst,
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(int *) pwidthFirst, height,
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(char *) pbits);
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ppt = pptFirst;
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pwidth = pwidthFirst;
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xMin -= (srcx - dstx);
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y = yMin - (srcy - dsty);
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for (j = 0; j < height; j++) {
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ppt->x = xMin;
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ppt++->y = y++;
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*pwidth++ = width;
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}
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(*pGC->ops->SetSpans) (pDstDrawable, pGC, (char *) pbits, pptFirst,
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(int *) pwidthFirst, height, TRUE);
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free(pbits);
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}
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}
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prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC, xIn, yIn,
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widthSrc, heightSrc, xOut, yOut,
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(unsigned long) 0);
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if (realSrcClip)
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RegionDestroy(prgnSrcClip);
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free(ordering);
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free(pwidthFirst);
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free(pptFirst);
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return prgnExposed;
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}
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/* MIGETPLANE -- gets a bitmap representing one plane of pDraw
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* A helper used for CopyPlane and XY format GetImage
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* No clever strategy here, we grab a scanline at a time, pull out the
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* bits and then stuff them in a 1 bit deep map.
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*/
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/*
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* This should be replaced with something more general. mi shouldn't have to
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* care about such things as scanline padding et alia.
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*/
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static
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MiBits *
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miGetPlane(DrawablePtr pDraw, int planeNum, /* number of the bitPlane */
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int sx, int sy, int w, int h, MiBits * result)
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{
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int i, j, k, width, bitsPerPixel, widthInBytes;
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DDXPointRec pt = { 0, 0 };
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MiBits pixel;
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MiBits bit;
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unsigned char *pCharsOut = NULL;
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#if BITMAP_SCANLINE_UNIT == 8
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#define OUT_TYPE unsigned char
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#endif
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#if BITMAP_SCANLINE_UNIT == 16
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#define OUT_TYPE CARD16
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#endif
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#if BITMAP_SCANLINE_UNIT == 32
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#define OUT_TYPE CARD32
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#endif
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#if BITMAP_SCANLINE_UNIT == 64
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#define OUT_TYPE CARD64
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#endif
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OUT_TYPE *pOut;
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int delta = 0;
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sx += pDraw->x;
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sy += pDraw->y;
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widthInBytes = BitmapBytePad(w);
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if (!result)
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result = calloc(h, widthInBytes);
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if (!result)
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return NULL;
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bitsPerPixel = pDraw->bitsPerPixel;
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pOut = (OUT_TYPE *) result;
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if (bitsPerPixel == 1) {
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pCharsOut = (unsigned char *) result;
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width = w;
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}
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else {
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delta = (widthInBytes / (BITMAP_SCANLINE_UNIT / 8)) -
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(w / BITMAP_SCANLINE_UNIT);
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width = 1;
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#if IMAGE_BYTE_ORDER == MSBFirst
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planeNum += (32 - bitsPerPixel);
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#endif
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}
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pt.y = sy;
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for (i = h; --i >= 0; pt.y++) {
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pt.x = sx;
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if (bitsPerPixel == 1) {
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(*pDraw->pScreen->GetSpans) (pDraw, width, &pt, &width, 1,
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(char *) pCharsOut);
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pCharsOut += widthInBytes;
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}
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else {
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k = 0;
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for (j = w; --j >= 0; pt.x++) {
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/* Fetch the next pixel */
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(*pDraw->pScreen->GetSpans) (pDraw, width, &pt, &width, 1,
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(char *) &pixel);
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/*
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* Now get the bit and insert into a bitmap in XY format.
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*/
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bit = (pixel >> planeNum) & 1;
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#if 0
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/* XXX assuming bit order == byte order */
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#if BITMAP_BIT_ORDER == LSBFirst
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bit <<= k;
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#else
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bit <<= ((BITMAP_SCANLINE_UNIT - 1) - k);
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#endif
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#else
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/* XXX assuming byte order == LSBFirst */
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if (screenInfo.bitmapBitOrder == LSBFirst)
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bit <<= k;
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else
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bit <<= ((screenInfo.bitmapScanlineUnit - 1) -
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(k % screenInfo.bitmapScanlineUnit)) +
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((k / screenInfo.bitmapScanlineUnit) *
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screenInfo.bitmapScanlineUnit);
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#endif
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*pOut |= (OUT_TYPE) bit;
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k++;
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if (k == BITMAP_SCANLINE_UNIT) {
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pOut++;
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k = 0;
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}
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}
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pOut += delta;
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}
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}
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return result;
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}
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/* MIOPQSTIPDRAWABLE -- use pbits as an opaque stipple for pDraw.
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* Drawing through the clip mask we SetSpans() the bits into a
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* bitmap and stipple those bits onto the destination drawable by doing a
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* PolyFillRect over the whole drawable,
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* then we invert the bitmap by copying it onto itself with an alu of
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* GXinvert, invert the foreground/background colors of the gc, and draw
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* the background bits.
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* Note how the clipped out bits of the bitmap are always the background
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* color so that the stipple never causes FillRect to draw them.
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*/
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static void
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miOpqStipDrawable(DrawablePtr pDraw, GCPtr pGC, RegionPtr prgnSrc,
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MiBits * pbits, int srcx, int w, int h, int dstx, int dsty)
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{
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int oldfill, i;
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unsigned long oldfg;
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int *pwidth, *pwidthFirst;
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ChangeGCVal gcv[6];
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PixmapPtr pStipple, pPixmap;
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DDXPointRec oldOrg;
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GCPtr pGCT;
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DDXPointPtr ppt, pptFirst;
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xRectangle rect;
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RegionPtr prgnSrcClip;
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pPixmap = (*pDraw->pScreen->CreatePixmap)
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(pDraw->pScreen, w + srcx, h, 1, CREATE_PIXMAP_USAGE_SCRATCH);
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if (!pPixmap)
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return;
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/* Put the image into a 1 bit deep pixmap */
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pGCT = GetScratchGC(1, pDraw->pScreen);
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if (!pGCT) {
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(*pDraw->pScreen->DestroyPixmap) (pPixmap);
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return;
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}
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/* First set the whole pixmap to 0 */
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gcv[0].val = 0;
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ChangeGC(NullClient, pGCT, GCBackground, gcv);
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ValidateGC((DrawablePtr) pPixmap, pGCT);
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miClearDrawable((DrawablePtr) pPixmap, pGCT);
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ppt = pptFirst = malloc(h * sizeof(DDXPointRec));
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pwidth = pwidthFirst = malloc(h * sizeof(int));
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if (!pptFirst || !pwidthFirst) {
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free(pwidthFirst);
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free(pptFirst);
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FreeScratchGC(pGCT);
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return;
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}
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/* we need a temporary region because ChangeClip must be assumed
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to destroy what it's sent. note that this means we don't
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have to free prgnSrcClip ourselves.
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*/
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prgnSrcClip = RegionCreate(NULL, 0);
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RegionCopy(prgnSrcClip, prgnSrc);
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RegionTranslate(prgnSrcClip, srcx, 0);
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(*pGCT->funcs->ChangeClip) (pGCT, CT_REGION, prgnSrcClip, 0);
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ValidateGC((DrawablePtr) pPixmap, pGCT);
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/* Since we know pDraw is always a pixmap, we never need to think
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* about translation here */
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for (i = 0; i < h; i++) {
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ppt->x = 0;
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ppt++->y = i;
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*pwidth++ = w + srcx;
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}
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(*pGCT->ops->SetSpans) ((DrawablePtr) pPixmap, pGCT, (char *) pbits,
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pptFirst, pwidthFirst, h, TRUE);
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free(pwidthFirst);
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free(pptFirst);
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/* Save current values from the client GC */
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oldfill = pGC->fillStyle;
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pStipple = pGC->stipple;
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if (pStipple)
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pStipple->refcnt++;
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oldOrg = pGC->patOrg;
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/* Set a new stipple in the drawable */
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gcv[0].val = FillStippled;
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gcv[1].ptr = pPixmap;
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gcv[2].val = dstx - srcx;
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gcv[3].val = dsty;
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ChangeGC(NullClient, pGC,
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GCFillStyle | GCStipple | GCTileStipXOrigin | GCTileStipYOrigin,
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gcv);
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ValidateGC(pDraw, pGC);
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/* Fill the drawable with the stipple. This will draw the
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* foreground color whereever 1 bits are set, leaving everything
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* with 0 bits untouched. Note that the part outside the clip
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* region is all 0s. */
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rect.x = dstx;
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rect.y = dsty;
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rect.width = w;
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rect.height = h;
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(*pGC->ops->PolyFillRect) (pDraw, pGC, 1, &rect);
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/* Invert the tiling pixmap. This sets 0s for 1s and 1s for 0s, only
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* within the clipping region, the part outside is still all 0s */
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gcv[0].val = GXinvert;
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ChangeGC(NullClient, pGCT, GCFunction, gcv);
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ValidateGC((DrawablePtr) pPixmap, pGCT);
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(*pGCT->ops->CopyArea) ((DrawablePtr) pPixmap, (DrawablePtr) pPixmap,
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pGCT, 0, 0, w + srcx, h, 0, 0);
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/* Swap foreground and background colors on the GC for the drawable.
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* Now when we fill the drawable, we will fill in the "Background"
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* values */
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oldfg = pGC->fgPixel;
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gcv[0].val = pGC->bgPixel;
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gcv[1].val = oldfg;
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gcv[2].ptr = pPixmap;
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ChangeGC(NullClient, pGC, GCForeground | GCBackground | GCStipple, gcv);
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ValidateGC(pDraw, pGC);
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/* PolyFillRect might have bashed the rectangle */
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rect.x = dstx;
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rect.y = dsty;
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rect.width = w;
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rect.height = h;
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(*pGC->ops->PolyFillRect) (pDraw, pGC, 1, &rect);
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|
/* Now put things back */
|
|
if (pStipple)
|
|
pStipple->refcnt--;
|
|
gcv[0].val = oldfg;
|
|
gcv[1].val = pGC->fgPixel;
|
|
gcv[2].val = oldfill;
|
|
gcv[3].ptr = pStipple;
|
|
gcv[4].val = oldOrg.x;
|
|
gcv[5].val = oldOrg.y;
|
|
ChangeGC(NullClient, pGC,
|
|
GCForeground | GCBackground | GCFillStyle | GCStipple |
|
|
GCTileStipXOrigin | GCTileStipYOrigin, gcv);
|
|
|
|
ValidateGC(pDraw, pGC);
|
|
/* put what we hope is a smaller clip region back in the scratch gc */
|
|
(*pGCT->funcs->ChangeClip) (pGCT, CT_NONE, NULL, 0);
|
|
FreeScratchGC(pGCT);
|
|
(*pDraw->pScreen->DestroyPixmap) (pPixmap);
|
|
|
|
}
|
|
|
|
/* MICOPYPLANE -- public entry for the CopyPlane request.
|
|
* strategy:
|
|
* First build up a bitmap out of the bits requested
|
|
* build a source clip
|
|
* Use the bitmap we've built up as a Stipple for the destination
|
|
*/
|
|
RegionPtr
|
|
miCopyPlane(DrawablePtr pSrcDrawable,
|
|
DrawablePtr pDstDrawable,
|
|
GCPtr pGC,
|
|
int srcx,
|
|
int srcy,
|
|
int width, int height, int dstx, int dsty, unsigned long bitPlane)
|
|
{
|
|
MiBits *ptile;
|
|
BoxRec box;
|
|
RegionPtr prgnSrc, prgnExposed;
|
|
|
|
/* incorporate the source clip */
|
|
|
|
box.x1 = srcx + pSrcDrawable->x;
|
|
box.y1 = srcy + pSrcDrawable->y;
|
|
box.x2 = box.x1 + width;
|
|
box.y2 = box.y1 + height;
|
|
/* clip to visible drawable */
|
|
if (box.x1 < pSrcDrawable->x)
|
|
box.x1 = pSrcDrawable->x;
|
|
if (box.y1 < pSrcDrawable->y)
|
|
box.y1 = pSrcDrawable->y;
|
|
if (box.x2 > pSrcDrawable->x + (int) pSrcDrawable->width)
|
|
box.x2 = pSrcDrawable->x + (int) pSrcDrawable->width;
|
|
if (box.y2 > pSrcDrawable->y + (int) pSrcDrawable->height)
|
|
box.y2 = pSrcDrawable->y + (int) pSrcDrawable->height;
|
|
if (box.x1 > box.x2)
|
|
box.x2 = box.x1;
|
|
if (box.y1 > box.y2)
|
|
box.y2 = box.y1;
|
|
prgnSrc = RegionCreate(&box, 1);
|
|
|
|
if (pSrcDrawable->type != DRAWABLE_PIXMAP) {
|
|
/* clip to visible drawable */
|
|
|
|
if (pGC->subWindowMode == IncludeInferiors) {
|
|
RegionPtr clipList = NotClippedByChildren((WindowPtr) pSrcDrawable);
|
|
|
|
RegionIntersect(prgnSrc, prgnSrc, clipList);
|
|
RegionDestroy(clipList);
|
|
}
|
|
else
|
|
RegionIntersect(prgnSrc, prgnSrc,
|
|
&((WindowPtr) pSrcDrawable)->clipList);
|
|
}
|
|
|
|
box = *RegionExtents(prgnSrc);
|
|
RegionTranslate(prgnSrc, -box.x1, -box.y1);
|
|
|
|
if ((box.x2 > box.x1) && (box.y2 > box.y1)) {
|
|
/* minimize the size of the data extracted */
|
|
/* note that we convert the plane mask bitPlane into a plane number */
|
|
box.x1 -= pSrcDrawable->x;
|
|
box.x2 -= pSrcDrawable->x;
|
|
box.y1 -= pSrcDrawable->y;
|
|
box.y2 -= pSrcDrawable->y;
|
|
ptile = miGetPlane(pSrcDrawable, ffs(bitPlane) - 1,
|
|
box.x1, box.y1,
|
|
box.x2 - box.x1, box.y2 - box.y1, (MiBits *) NULL);
|
|
if (ptile) {
|
|
miOpqStipDrawable(pDstDrawable, pGC, prgnSrc, ptile, 0,
|
|
box.x2 - box.x1, box.y2 - box.y1,
|
|
dstx + box.x1 - srcx, dsty + box.y1 - srcy);
|
|
free(ptile);
|
|
}
|
|
}
|
|
prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC, srcx, srcy,
|
|
width, height, dstx, dsty, bitPlane);
|
|
RegionDestroy(prgnSrc);
|
|
return prgnExposed;
|
|
}
|
|
|
|
/* MIGETIMAGE -- public entry for the GetImage Request
|
|
* We're getting the image into a memory buffer. While we have to use GetSpans
|
|
* to read a line from the device (since we don't know what that looks like),
|
|
* we can just write into the destination buffer
|
|
*
|
|
* two different strategies are used, depending on whether we're getting the
|
|
* image in Z format or XY format
|
|
* Z format:
|
|
* Line at a time, GetSpans a line into the destination buffer, then if the
|
|
* planemask is not all ones, we do a SetSpans into a temporary buffer (to get
|
|
* bits turned off) and then another GetSpans to get stuff back (because
|
|
* pixmaps are opaque, and we are passed in the memory to write into). This is
|
|
* pretty ugly and slow but works. Life is hard.
|
|
* XY format:
|
|
* get the single plane specified in planemask
|
|
*/
|
|
void
|
|
miGetImage(DrawablePtr pDraw, int sx, int sy, int w, int h,
|
|
unsigned int format, unsigned long planeMask, char *pDst)
|
|
{
|
|
unsigned char depth;
|
|
int i, linelength, width, srcx, srcy;
|
|
DDXPointRec pt = { 0, 0 };
|
|
PixmapPtr pPixmap = NULL;
|
|
GCPtr pGC = NULL;
|
|
|
|
depth = pDraw->depth;
|
|
if (format == ZPixmap) {
|
|
if ((((1LL << depth) - 1) & planeMask) != (1LL << depth) - 1) {
|
|
ChangeGCVal gcv;
|
|
xPoint xpt;
|
|
|
|
pGC = GetScratchGC(depth, pDraw->pScreen);
|
|
if (!pGC)
|
|
return;
|
|
pPixmap = (*pDraw->pScreen->CreatePixmap)
|
|
(pDraw->pScreen, w, 1, depth, CREATE_PIXMAP_USAGE_SCRATCH);
|
|
if (!pPixmap) {
|
|
FreeScratchGC(pGC);
|
|
return;
|
|
}
|
|
/*
|
|
* Clear the pixmap before doing anything else
|
|
*/
|
|
ValidateGC((DrawablePtr) pPixmap, pGC);
|
|
xpt.x = xpt.y = 0;
|
|
width = w;
|
|
(*pGC->ops->FillSpans) ((DrawablePtr) pPixmap, pGC, 1, &xpt, &width,
|
|
TRUE);
|
|
|
|
/* alu is already GXCopy */
|
|
gcv.val = (XID) planeMask;
|
|
ChangeGC(NullClient, pGC, GCPlaneMask, &gcv);
|
|
ValidateGC((DrawablePtr) pPixmap, pGC);
|
|
}
|
|
|
|
linelength = PixmapBytePad(w, depth);
|
|
srcx = sx + pDraw->x;
|
|
srcy = sy + pDraw->y;
|
|
for (i = 0; i < h; i++) {
|
|
pt.x = srcx;
|
|
pt.y = srcy + i;
|
|
width = w;
|
|
(*pDraw->pScreen->GetSpans) (pDraw, w, &pt, &width, 1, pDst);
|
|
if (pPixmap) {
|
|
pt.x = 0;
|
|
pt.y = 0;
|
|
width = w;
|
|
(*pGC->ops->SetSpans) ((DrawablePtr) pPixmap, pGC, pDst,
|
|
&pt, &width, 1, TRUE);
|
|
(*pDraw->pScreen->GetSpans) ((DrawablePtr) pPixmap, w, &pt,
|
|
&width, 1, pDst);
|
|
}
|
|
pDst += linelength;
|
|
}
|
|
if (pPixmap) {
|
|
(*pGC->pScreen->DestroyPixmap) (pPixmap);
|
|
FreeScratchGC(pGC);
|
|
}
|
|
}
|
|
else {
|
|
(void) miGetPlane(pDraw, ffs(planeMask) - 1, sx, sy, w, h,
|
|
(MiBits *) pDst);
|
|
}
|
|
}
|
|
|
|
/* MIPUTIMAGE -- public entry for the PutImage request
|
|
* Here we benefit from knowing the format of the bits pointed to by pImage,
|
|
* even if we don't know how pDraw represents them.
|
|
* Three different strategies are used depending on the format
|
|
* XYBitmap Format:
|
|
* we just use the Opaque Stipple helper function to cover the destination
|
|
* Note that this covers all the planes of the drawable with the
|
|
* foreground color (masked with the GC planemask) where there are 1 bits
|
|
* and the background color (masked with the GC planemask) where there are
|
|
* 0 bits
|
|
* XYPixmap format:
|
|
* what we're called with is a series of XYBitmaps, but we only want
|
|
* each XYPixmap to update 1 plane, instead of updating all of them.
|
|
* we set the foreground color to be all 1s and the background to all 0s
|
|
* then for each plane, we set the plane mask to only effect that one
|
|
* plane and recursive call ourself with the format set to XYBitmap
|
|
* (This clever idea courtesy of RGD.)
|
|
* ZPixmap format:
|
|
* This part is simple, just call SetSpans
|
|
*/
|
|
void
|
|
miPutImage(DrawablePtr pDraw, GCPtr pGC, int depth,
|
|
int x, int y, int w, int h, int leftPad, int format, char *pImage)
|
|
{
|
|
DDXPointPtr pptFirst, ppt;
|
|
int *pwidthFirst, *pwidth;
|
|
RegionPtr prgnSrc;
|
|
BoxRec box;
|
|
unsigned long oldFg, oldBg;
|
|
ChangeGCVal gcv[3];
|
|
unsigned long oldPlanemask;
|
|
unsigned long i;
|
|
long bytesPer;
|
|
|
|
if (!w || !h)
|
|
return;
|
|
switch (format) {
|
|
case XYBitmap:
|
|
|
|
box.x1 = 0;
|
|
box.y1 = 0;
|
|
box.x2 = w;
|
|
box.y2 = h;
|
|
prgnSrc = RegionCreate(&box, 1);
|
|
|
|
miOpqStipDrawable(pDraw, pGC, prgnSrc, (MiBits *) pImage,
|
|
leftPad, w, h, x, y);
|
|
RegionDestroy(prgnSrc);
|
|
break;
|
|
|
|
case XYPixmap:
|
|
depth = pGC->depth;
|
|
oldPlanemask = pGC->planemask;
|
|
oldFg = pGC->fgPixel;
|
|
oldBg = pGC->bgPixel;
|
|
gcv[0].val = (XID) ~0;
|
|
gcv[1].val = (XID) 0;
|
|
ChangeGC(NullClient, pGC, GCForeground | GCBackground, gcv);
|
|
bytesPer = (long) h *BitmapBytePad(w + leftPad);
|
|
|
|
for (i = (unsigned long) 1 << (depth - 1); i != 0; i >>= 1, pImage += bytesPer) {
|
|
if (i & oldPlanemask) {
|
|
gcv[0].val = (XID) i;
|
|
ChangeGC(NullClient, pGC, GCPlaneMask, gcv);
|
|
ValidateGC(pDraw, pGC);
|
|
(*pGC->ops->PutImage) (pDraw, pGC, 1, x, y, w, h, leftPad,
|
|
XYBitmap, (char *) pImage);
|
|
}
|
|
}
|
|
gcv[0].val = (XID) oldPlanemask;
|
|
gcv[1].val = (XID) oldFg;
|
|
gcv[2].val = (XID) oldBg;
|
|
ChangeGC(NullClient, pGC, GCPlaneMask | GCForeground | GCBackground,
|
|
gcv);
|
|
ValidateGC(pDraw, pGC);
|
|
break;
|
|
|
|
case ZPixmap:
|
|
ppt = pptFirst = malloc(h * sizeof(DDXPointRec));
|
|
pwidth = pwidthFirst = malloc(h * sizeof(int));
|
|
if (!pptFirst || !pwidthFirst) {
|
|
free(pwidthFirst);
|
|
free(pptFirst);
|
|
return;
|
|
}
|
|
if (pGC->miTranslate) {
|
|
x += pDraw->x;
|
|
y += pDraw->y;
|
|
}
|
|
|
|
for (i = 0; i < h; i++) {
|
|
ppt->x = x;
|
|
ppt->y = y + i;
|
|
ppt++;
|
|
*pwidth++ = w;
|
|
}
|
|
|
|
(*pGC->ops->SetSpans) (pDraw, pGC, (char *) pImage, pptFirst,
|
|
pwidthFirst, h, TRUE);
|
|
free(pwidthFirst);
|
|
free(pptFirst);
|
|
break;
|
|
}
|
|
}
|