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-rw-r--r--xorg-server/hw/dmx/dmxgcops.c1210
1 files changed, 605 insertions, 605 deletions
diff --git a/xorg-server/hw/dmx/dmxgcops.c b/xorg-server/hw/dmx/dmxgcops.c
index 8f4f5c774..500e2cdf1 100644
--- a/xorg-server/hw/dmx/dmxgcops.c
+++ b/xorg-server/hw/dmx/dmxgcops.c
@@ -1,605 +1,605 @@
-/*
- * Copyright 2001-2004 Red Hat Inc., Durham, North Carolina.
- *
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation on the rights to use, copy, modify, merge,
- * publish, distribute, sublicense, and/or sell copies of the Software,
- * and to permit persons to whom the Software is furnished to do so,
- * subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) 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
- * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
- * 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.
- */
-
-/*
- * Authors:
- * Kevin E. Martin <kem@redhat.com>
- *
- */
-
-/** \file
- * This file provides support for GC operations. */
-
-#ifdef HAVE_DMX_CONFIG_H
-#include <dmx-config.h>
-#endif
-
-#include "dmx.h"
-#include "dmxsync.h"
-#include "dmxgc.h"
-#include "dmxgcops.h"
-#include "dmxwindow.h"
-#include "dmxpixmap.h"
-
-#include "mi.h"
-#include "gcstruct.h"
-#include "pixmapstr.h"
-#include "dixfontstr.h"
-
-#ifdef PANORAMIX
-#include "panoramiXsrv.h"
-#endif
-
-#define DMX_GCOPS_SET_DRAWABLE(_pDraw, _draw) \
-do { \
- if ((_pDraw)->type == DRAWABLE_WINDOW) { \
- dmxWinPrivPtr pWinPriv = \
- DMX_GET_WINDOW_PRIV((WindowPtr)(_pDraw)); \
- (_draw) = (Drawable)pWinPriv->window; \
- } else { \
- dmxPixPrivPtr pPixPriv = \
- DMX_GET_PIXMAP_PRIV((PixmapPtr)(_pDraw)); \
- (_draw) = (Drawable)pPixPriv->pixmap; \
- } \
-} while (0)
-
-#define DMX_GCOPS_OFFSCREEN(_pDraw) \
- (!dmxScreens[(_pDraw)->pScreen->myNum].beDisplay || \
- (dmxOffScreenOpt && \
- (_pDraw)->type == DRAWABLE_WINDOW && \
- (DMX_GET_WINDOW_PRIV((WindowPtr)(_pDraw))->offscreen || \
- !DMX_GET_WINDOW_PRIV((WindowPtr)(_pDraw))->window)))
-
-/** Fill spans -- this function should never be called. */
-void dmxFillSpans(DrawablePtr pDrawable, GCPtr pGC,
- int nInit, DDXPointPtr pptInit, int *pwidthInit,
- int fSorted)
-{
- /* Error -- this should never happen! */
-}
-
-/** Set spans -- this function should never be called. */
-void dmxSetSpans(DrawablePtr pDrawable, GCPtr pGC,
- char *psrc, DDXPointPtr ppt, int *pwidth, int nspans,
- int fSorted)
-{
- /* Error -- this should never happen! */
-}
-
-/** Transfer \a pBits image to back-end server associated with \a
- * pDrawable's screen. If primitive subdivision optimization is
- * enabled, then only transfer the sections of \a pBits that are
- * visible (i.e., not-clipped) to the back-end server. */
-void dmxPutImage(DrawablePtr pDrawable, GCPtr pGC,
- int depth, int x, int y, int w, int h,
- int leftPad, int format, char *pBits)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- XImage *img;
-
- if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
-
- img = XCreateImage(dmxScreen->beDisplay,
- dmxScreen->beVisuals[dmxScreen->beDefVisualIndex].visual,
- depth, format, leftPad, pBits, w, h,
- BitmapPad(dmxScreen->beDisplay),
- (format == ZPixmap) ?
- PixmapBytePad(w, depth) : BitmapBytePad(w+leftPad));
-
- if (img) {
- Drawable draw;
-
- DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
-
- if (dmxSubdividePrimitives && pGC->pCompositeClip) {
- RegionPtr pSubImages;
- RegionPtr pClip;
- BoxRec box;
- BoxPtr pBox;
- int nBox;
-
- box.x1 = x;
- box.y1 = y;
- box.x2 = x + w;
- box.y2 = y + h;
- pSubImages = RegionCreate(&box, 1);
-
- pClip = RegionCreate(NullBox, 1);
- RegionCopy(pClip, pGC->pCompositeClip);
- RegionTranslate(pClip,
- -pDrawable->x, -pDrawable->y);
- RegionIntersect(pSubImages, pSubImages, pClip);
-
- nBox = RegionNumRects(pSubImages);
- pBox = RegionRects(pSubImages);
-
- while (nBox--) {
- XPutImage(dmxScreen->beDisplay, draw, pGCPriv->gc, img,
- pBox->x1 - box.x1,
- pBox->y1 - box.y1,
- pBox->x1,
- pBox->y1,
- pBox->x2 - pBox->x1,
- pBox->y2 - pBox->y1);
- pBox++;
- }
- RegionDestroy(pClip);
- RegionDestroy(pSubImages);
- } else {
- XPutImage(dmxScreen->beDisplay, draw, pGCPriv->gc,
- img, 0, 0, x, y, w, h);
- }
- XFree(img); /* Use XFree instead of XDestroyImage
- * because pBits is passed in from the
- * caller. */
-
- dmxSync(dmxScreen, FALSE);
- } else {
- /* Error -- this should not happen! */
- }
-}
-
-/** Copy area from \a pSrc drawable to \a pDst drawable on the back-end
- * server associated with \a pSrc drawable's screen. If the offscreen
- * optimization is enabled, only copy when both \a pSrc and \a pDst are
- * at least partially visible. */
-RegionPtr dmxCopyArea(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
- int srcx, int srcy, int w, int h, int dstx, int dsty)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pSrc->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- Drawable srcDraw, dstDraw;
-
- if (DMX_GCOPS_OFFSCREEN(pSrc) || DMX_GCOPS_OFFSCREEN(pDst))
- return miHandleExposures(pSrc, pDst, pGC, srcx, srcy, w, h,
- dstx, dsty, 0L);
-
- DMX_GCOPS_SET_DRAWABLE(pSrc, srcDraw);
- DMX_GCOPS_SET_DRAWABLE(pDst, dstDraw);
-
- XCopyArea(dmxScreen->beDisplay, srcDraw, dstDraw, pGCPriv->gc,
- srcx, srcy, w, h, dstx, dsty);
- dmxSync(dmxScreen, FALSE);
-
- return miHandleExposures(pSrc, pDst, pGC, srcx, srcy, w, h,
- dstx, dsty, 0L);
-}
-
-/** Copy plane number \a bitPlane from \a pSrc drawable to \a pDst
- * drawable on the back-end server associated with \a pSrc drawable's
- * screen. If the offscreen optimization is enabled, only copy when
- * both \a pSrc and \a pDst are at least partially visible. */
-RegionPtr dmxCopyPlane(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
- int srcx, int srcy, int width, int height,
- int dstx, int dsty, unsigned long bitPlane)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pSrc->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- Drawable srcDraw, dstDraw;
-
- if (DMX_GCOPS_OFFSCREEN(pSrc) || DMX_GCOPS_OFFSCREEN(pDst))
- return miHandleExposures(pSrc, pDst, pGC, srcx, srcy, width, height,
- dstx, dsty, bitPlane);
-
- DMX_GCOPS_SET_DRAWABLE(pSrc, srcDraw);
- DMX_GCOPS_SET_DRAWABLE(pDst, dstDraw);
-
- XCopyPlane(dmxScreen->beDisplay, srcDraw, dstDraw, pGCPriv->gc,
- srcx, srcy, width, height, dstx, dsty, bitPlane);
- dmxSync(dmxScreen, FALSE);
-
- return miHandleExposures(pSrc, pDst, pGC, srcx, srcy, width, height,
- dstx, dsty, bitPlane);
-}
-
-/** Render list of points, \a pptInit in \a pDrawable on the back-end
- * server associated with \a pDrawable's screen. If the offscreen
- * optimization is enabled, only draw when \a pDrawable is at least
- * partially visible. */
-void dmxPolyPoint(DrawablePtr pDrawable, GCPtr pGC,
- int mode, int npt, DDXPointPtr pptInit)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- Drawable draw;
-
- if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
-
- DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
-
- XDrawPoints(dmxScreen->beDisplay, draw, pGCPriv->gc,
- (XPoint *)pptInit, npt, mode);
- dmxSync(dmxScreen, FALSE);
-}
-
-/** Render list of connected lines, \a pptInit in \a pDrawable on the
- * back-end server associated with \a pDrawable's screen. If the
- * offscreen optimization is enabled, only draw when \a pDrawable is at
- * least partially visible. */
-void dmxPolylines(DrawablePtr pDrawable, GCPtr pGC,
- int mode, int npt, DDXPointPtr pptInit)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- Drawable draw;
-
- if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
-
- DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
-
- XDrawLines(dmxScreen->beDisplay, draw, pGCPriv->gc,
- (XPoint *)pptInit, npt, mode);
- dmxSync(dmxScreen, FALSE);
-}
-
-/** Render list of disjoint segments, \a pSegs in \a pDrawable on the
- * back-end server associated with \a pDrawable's screen. If the
- * offscreen optimization is enabled, only draw when \a pDrawable is at
- * least partially visible. */
-void dmxPolySegment(DrawablePtr pDrawable, GCPtr pGC,
- int nseg, xSegment *pSegs)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- Drawable draw;
-
- if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
-
- DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
-
- XDrawSegments(dmxScreen->beDisplay, draw, pGCPriv->gc,
- (XSegment *)pSegs, nseg);
- dmxSync(dmxScreen, FALSE);
-}
-
-/** Render list of rectangle outlines, \a pRects in \a pDrawable on the
- * back-end server associated with \a pDrawable's screen. If the
- * offscreen optimization is enabled, only draw when \a pDrawable is at
- * least partially visible. */
-void dmxPolyRectangle(DrawablePtr pDrawable, GCPtr pGC,
- int nrects, xRectangle *pRects)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- Drawable draw;
-
- if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
-
- DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
-
- XDrawRectangles(dmxScreen->beDisplay, draw, pGCPriv->gc,
- (XRectangle *)pRects, nrects);
-
- dmxSync(dmxScreen, FALSE);
-}
-
-/** Render list of arc outlines, \a parcs in \a pDrawable on the
- * back-end server associated with \a pDrawable's screen. If the
- * offscreen optimization is enabled, only draw when \a pDrawable is at
- * least partially visible. */
-void dmxPolyArc(DrawablePtr pDrawable, GCPtr pGC,
- int narcs, xArc *parcs)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- Drawable draw;
-
- if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
-
- DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
-
- XDrawArcs(dmxScreen->beDisplay, draw, pGCPriv->gc,
- (XArc *)parcs, narcs);
- dmxSync(dmxScreen, FALSE);
-}
-
-/** Render a filled polygons in \a pDrawable on the back-end server
- * associated with \a pDrawable's screen. If the offscreen
- * optimization is enabled, only draw when \a pDrawable is at least
- * partially visible. */
-void dmxFillPolygon(DrawablePtr pDrawable, GCPtr pGC,
- int shape, int mode, int count, DDXPointPtr pPts)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- Drawable draw;
-
- if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
-
- DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
-
- XFillPolygon(dmxScreen->beDisplay, draw, pGCPriv->gc,
- (XPoint *)pPts, count, shape, mode);
- dmxSync(dmxScreen, FALSE);
-}
-
-/** Render list of filled rectangles, \a prectInit in \a pDrawable on
- * the back-end server associated with \a pDrawable's screen. If the
- * offscreen optimization is enabled, only draw when \a pDrawable is at
- * least partially visible. */
-void dmxPolyFillRect(DrawablePtr pDrawable, GCPtr pGC,
- int nrectFill, xRectangle *prectInit)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- Drawable draw;
-
- if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
-
- DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
-
- XFillRectangles(dmxScreen->beDisplay, draw, pGCPriv->gc,
- (XRectangle *)prectInit, nrectFill);
- dmxSync(dmxScreen, FALSE);
-}
-
-/** Render list of filled arcs, \a parcs in \a pDrawable on the back-end
- * server associated with \a pDrawable's screen. If the offscreen
- * optimization is enabled, only draw when \a pDrawable is at least
- * partially visible. */
-void dmxPolyFillArc(DrawablePtr pDrawable, GCPtr pGC,
- int narcs, xArc *parcs)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- Drawable draw;
-
- if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
-
- DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
-
- XFillArcs(dmxScreen->beDisplay, draw, pGCPriv->gc,
- (XArc *)parcs, narcs);
- dmxSync(dmxScreen, FALSE);
-}
-
-/** Render string of 8-bit \a chars (foreground only) in \a pDrawable on
- * the back-end server associated with \a pDrawable's screen. If the
- * offscreen optimization is enabled, only draw when \a pDrawable is at
- * least partially visible. */
-int dmxPolyText8(DrawablePtr pDrawable, GCPtr pGC,
- int x, int y, int count, char *chars)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- unsigned long n, i;
- int w;
- CharInfoPtr charinfo[255];
- Drawable draw;
-
- GetGlyphs(pGC->font, (unsigned long)count, (unsigned char *)chars,
- Linear8Bit, &n, charinfo);
-
- /* Calculate text width */
- w = 0;
- for (i = 0; i < n; i++) w += charinfo[i]->metrics.characterWidth;
-
- if (n != 0 && !DMX_GCOPS_OFFSCREEN(pDrawable)) {
- DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
-
- XDrawString(dmxScreen->beDisplay, draw, pGCPriv->gc,
- x, y, chars, count);
- dmxSync(dmxScreen, FALSE);
- }
-
- return x+w;
-}
-
-/** Render string of 16-bit \a chars (foreground only) in \a pDrawable
- * on the back-end server associated with \a pDrawable's screen. If
- * the offscreen optimization is enabled, only draw when \a pDrawable
- * is at least partially visible. */
-int dmxPolyText16(DrawablePtr pDrawable, GCPtr pGC,
- int x, int y, int count, unsigned short *chars)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- unsigned long n, i;
- int w;
- CharInfoPtr charinfo[255];
- Drawable draw;
-
- GetGlyphs(pGC->font, (unsigned long)count, (unsigned char *)chars,
- (FONTLASTROW(pGC->font) == 0) ? Linear16Bit : TwoD16Bit,
- &n, charinfo);
-
- /* Calculate text width */
- w = 0;
- for (i = 0; i < n; i++) w += charinfo[i]->metrics.characterWidth;
-
- if (n != 0 && !DMX_GCOPS_OFFSCREEN(pDrawable)) {
- DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
-
- XDrawString16(dmxScreen->beDisplay, draw, pGCPriv->gc,
- x, y, (XChar2b *)chars, count);
- dmxSync(dmxScreen, FALSE);
- }
-
- return x+w;
-}
-
-/** Render string of 8-bit \a chars (both foreground and background) in
- * \a pDrawable on the back-end server associated with \a pDrawable's
- * screen. If the offscreen optimization is enabled, only draw when \a
- * pDrawable is at least partially visible. */
-void dmxImageText8(DrawablePtr pDrawable, GCPtr pGC,
- int x, int y, int count, char *chars)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- Drawable draw;
-
- if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
-
- DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
-
- XDrawImageString(dmxScreen->beDisplay, draw, pGCPriv->gc,
- x, y, chars, count);
- dmxSync(dmxScreen, FALSE);
-}
-
-/** Render string of 16-bit \a chars (both foreground and background) in
- * \a pDrawable on the back-end server associated with \a pDrawable's
- * screen. If the offscreen optimization is enabled, only draw when \a
- * pDrawable is at least partially visible. */
-void dmxImageText16(DrawablePtr pDrawable, GCPtr pGC,
- int x, int y, int count, unsigned short *chars)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
- dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
- Drawable draw;
-
- if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
-
- DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
-
- XDrawImageString16(dmxScreen->beDisplay, draw, pGCPriv->gc,
- x, y, (XChar2b *)chars, count);
- dmxSync(dmxScreen, FALSE);
-}
-
-/** Image Glyph Blt -- this function should never be called. */
-void dmxImageGlyphBlt(DrawablePtr pDrawable, GCPtr pGC,
- int x, int y, unsigned int nglyph,
- CharInfoPtr *ppci, pointer pglyphBase)
-{
- /* Error -- this should never happen! */
-}
-
-/** Poly Glyph Blt -- this function should never be called. */
-void dmxPolyGlyphBlt(DrawablePtr pDrawable, GCPtr pGC,
- int x, int y, unsigned int nglyph,
- CharInfoPtr *ppci, pointer pglyphBase)
-{
- /* Error -- this should never happen! */
-}
-
-/** Push Pixels -- this function should never be called. */
-void dmxPushPixels(GCPtr pGC, PixmapPtr pBitMap, DrawablePtr pDst,
- int w, int h, int x, int y)
-{
- /* Error -- this should never happen! */
-}
-
-/**********************************************************************
- * Miscellaneous drawing commands
- */
-
-/** When Xinerama is active, the client pixmaps are always obtained from
- * screen 0. When screen 0 is detached, the pixmaps must be obtained
- * from any other screen that is not detached. Usually, this is screen
- * 1. */
-static DMXScreenInfo *dmxFindAlternatePixmap(DrawablePtr pDrawable, XID *draw)
-{
-#ifdef PANORAMIX
- PanoramiXRes *pXinPix;
- int i;
- DMXScreenInfo *dmxScreen;
-
- if (noPanoramiXExtension) return NULL;
- if (pDrawable->type != DRAWABLE_PIXMAP) return NULL;
-
- if (Success != dixLookupResourceByType((pointer*) &pXinPix,
- pDrawable->id, XRT_PIXMAP,
- NullClient, DixUnknownAccess))
- return NULL;
-
- for (i = 1; i < PanoramiXNumScreens; i++) {
- dmxScreen = &dmxScreens[i];
- if (dmxScreen->beDisplay) {
- PixmapPtr pSrc;
- dmxPixPrivPtr pSrcPriv;
-
- dixLookupResourceByType((pointer*) &pSrc, pXinPix->info[i].id,
- RT_PIXMAP, NullClient, DixUnknownAccess);
- pSrcPriv = DMX_GET_PIXMAP_PRIV(pSrc);
- if (pSrcPriv->pixmap) {
- *draw = pSrcPriv->pixmap;
- return dmxScreen;
- }
- }
- }
-#endif
- return NULL;
-}
-
-/** Get an image from the back-end server associated with \a pDrawable's
- * screen. If \a pDrawable is a window, it must be viewable to get an
- * image from it. If it is not viewable, then get the image from the
- * first ancestor of \a pDrawable that is viewable. If no viewable
- * ancestor is found, then simply return without getting an image. */
-void dmxGetImage(DrawablePtr pDrawable, int sx, int sy, int w, int h,
- unsigned int format, unsigned long planeMask, char *pdstLine)
-{
- DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
- XImage *img;
- Drawable draw;
-
- /* Cannot get image from unviewable window */
- if (pDrawable->type == DRAWABLE_WINDOW) {
- WindowPtr pWindow = (WindowPtr)pDrawable;
- if (!pWindow->viewable) {
- while (!pWindow->viewable && pWindow->parent) {
- sx += pWindow->origin.x - wBorderWidth(pWindow);
- sx += pWindow->origin.y - wBorderWidth(pWindow);
- pWindow = pWindow->parent;
- }
- if (!pWindow->viewable) {
- return;
- }
- }
- DMX_GCOPS_SET_DRAWABLE(&pWindow->drawable, draw);
- if (DMX_GCOPS_OFFSCREEN(&pWindow->drawable))
- return;
- } else {
- DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
- if (DMX_GCOPS_OFFSCREEN(pDrawable)) {
- /* Try to find the pixmap on a non-detached Xinerama screen */
- dmxScreen = dmxFindAlternatePixmap(pDrawable, &draw);
- if (!dmxScreen) return;
- }
- }
-
- img = XGetImage(dmxScreen->beDisplay, draw,
- sx, sy, w, h, planeMask, format);
- if (img) {
- int len = img->bytes_per_line * img->height;
- memmove(pdstLine, img->data, len);
- XDestroyImage(img);
- }
-
- dmxSync(dmxScreen, FALSE);
-}
-
-/** Get Spans -- this function should never be called. */
-void dmxGetSpans(DrawablePtr pDrawable, int wMax,
- DDXPointPtr ppt, int *pwidth, int nspans,
- char *pdstStart)
-{
- /* Error -- this should never happen! */
-}
+/*
+ * Copyright 2001-2004 Red Hat Inc., Durham, North Carolina.
+ *
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation on the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) 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
+ * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
+ * 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.
+ */
+
+/*
+ * Authors:
+ * Kevin E. Martin <kem@redhat.com>
+ *
+ */
+
+/** \file
+ * This file provides support for GC operations. */
+
+#ifdef HAVE_DMX_CONFIG_H
+#include <dmx-config.h>
+#endif
+
+#include "dmx.h"
+#include "dmxsync.h"
+#include "dmxgc.h"
+#include "dmxgcops.h"
+#include "dmxwindow.h"
+#include "dmxpixmap.h"
+
+#include "mi.h"
+#include "gcstruct.h"
+#include "pixmapstr.h"
+#include "dixfontstr.h"
+
+#ifdef PANORAMIX
+#include "panoramiXsrv.h"
+#endif
+
+#define DMX_GCOPS_SET_DRAWABLE(_pDraw, _draw) \
+do { \
+ if ((_pDraw)->type == DRAWABLE_WINDOW) { \
+ dmxWinPrivPtr pWinPriv = \
+ DMX_GET_WINDOW_PRIV((WindowPtr)(_pDraw)); \
+ (_draw) = (Drawable)pWinPriv->window; \
+ } else { \
+ dmxPixPrivPtr pPixPriv = \
+ DMX_GET_PIXMAP_PRIV((PixmapPtr)(_pDraw)); \
+ (_draw) = (Drawable)pPixPriv->pixmap; \
+ } \
+} while (0)
+
+#define DMX_GCOPS_OFFSCREEN(_pDraw) \
+ (!dmxScreens[(_pDraw)->pScreen->myNum].beDisplay || \
+ (dmxOffScreenOpt && \
+ (_pDraw)->type == DRAWABLE_WINDOW && \
+ (DMX_GET_WINDOW_PRIV((WindowPtr)(_pDraw))->offscreen || \
+ !DMX_GET_WINDOW_PRIV((WindowPtr)(_pDraw))->window)))
+
+/** Fill spans -- this function should never be called. */
+void dmxFillSpans(DrawablePtr pDrawable, GCPtr pGC,
+ int nInit, DDXPointPtr pptInit, int *pwidthInit,
+ int fSorted)
+{
+ /* Error -- this should never happen! */
+}
+
+/** Set spans -- this function should never be called. */
+void dmxSetSpans(DrawablePtr pDrawable, GCPtr pGC,
+ char *psrc, DDXPointPtr ppt, int *pwidth, int nspans,
+ int fSorted)
+{
+ /* Error -- this should never happen! */
+}
+
+/** Transfer \a pBits image to back-end server associated with \a
+ * pDrawable's screen. If primitive subdivision optimization is
+ * enabled, then only transfer the sections of \a pBits that are
+ * visible (i.e., not-clipped) to the back-end server. */
+void dmxPutImage(DrawablePtr pDrawable, GCPtr pGC,
+ int depth, int x, int y, int w, int h,
+ int leftPad, int format, char *pBits)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ XImage *img;
+
+ if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
+
+ img = XCreateImage(dmxScreen->beDisplay,
+ dmxScreen->beVisuals[dmxScreen->beDefVisualIndex].visual,
+ depth, format, leftPad, pBits, w, h,
+ BitmapPad(dmxScreen->beDisplay),
+ (format == ZPixmap) ?
+ PixmapBytePad(w, depth) : BitmapBytePad(w+leftPad));
+
+ if (img) {
+ Drawable draw;
+
+ DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
+
+ if (dmxSubdividePrimitives && pGC->pCompositeClip) {
+ RegionPtr pSubImages;
+ RegionPtr pClip;
+ BoxRec box;
+ BoxPtr pBox;
+ int nBox;
+
+ box.x1 = x;
+ box.y1 = y;
+ box.x2 = x + w;
+ box.y2 = y + h;
+ pSubImages = RegionCreate(&box, 1);
+
+ pClip = RegionCreate(NullBox, 1);
+ RegionCopy(pClip, pGC->pCompositeClip);
+ RegionTranslate(pClip,
+ -pDrawable->x, -pDrawable->y);
+ RegionIntersect(pSubImages, pSubImages, pClip);
+
+ nBox = RegionNumRects(pSubImages);
+ pBox = RegionRects(pSubImages);
+
+ while (nBox--) {
+ XPutImage(dmxScreen->beDisplay, draw, pGCPriv->gc, img,
+ pBox->x1 - box.x1,
+ pBox->y1 - box.y1,
+ pBox->x1,
+ pBox->y1,
+ pBox->x2 - pBox->x1,
+ pBox->y2 - pBox->y1);
+ pBox++;
+ }
+ RegionDestroy(pClip);
+ RegionDestroy(pSubImages);
+ } else {
+ XPutImage(dmxScreen->beDisplay, draw, pGCPriv->gc,
+ img, 0, 0, x, y, w, h);
+ }
+ XFree(img); /* Use XFree instead of XDestroyImage
+ * because pBits is passed in from the
+ * caller. */
+
+ dmxSync(dmxScreen, FALSE);
+ } else {
+ /* Error -- this should not happen! */
+ }
+}
+
+/** Copy area from \a pSrc drawable to \a pDst drawable on the back-end
+ * server associated with \a pSrc drawable's screen. If the offscreen
+ * optimization is enabled, only copy when both \a pSrc and \a pDst are
+ * at least partially visible. */
+RegionPtr dmxCopyArea(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
+ int srcx, int srcy, int w, int h, int dstx, int dsty)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pSrc->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ Drawable srcDraw, dstDraw;
+
+ if (DMX_GCOPS_OFFSCREEN(pSrc) || DMX_GCOPS_OFFSCREEN(pDst))
+ return miHandleExposures(pSrc, pDst, pGC, srcx, srcy, w, h,
+ dstx, dsty, 0L);
+
+ DMX_GCOPS_SET_DRAWABLE(pSrc, srcDraw);
+ DMX_GCOPS_SET_DRAWABLE(pDst, dstDraw);
+
+ XCopyArea(dmxScreen->beDisplay, srcDraw, dstDraw, pGCPriv->gc,
+ srcx, srcy, w, h, dstx, dsty);
+ dmxSync(dmxScreen, FALSE);
+
+ return miHandleExposures(pSrc, pDst, pGC, srcx, srcy, w, h,
+ dstx, dsty, 0L);
+}
+
+/** Copy plane number \a bitPlane from \a pSrc drawable to \a pDst
+ * drawable on the back-end server associated with \a pSrc drawable's
+ * screen. If the offscreen optimization is enabled, only copy when
+ * both \a pSrc and \a pDst are at least partially visible. */
+RegionPtr dmxCopyPlane(DrawablePtr pSrc, DrawablePtr pDst, GCPtr pGC,
+ int srcx, int srcy, int width, int height,
+ int dstx, int dsty, unsigned long bitPlane)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pSrc->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ Drawable srcDraw, dstDraw;
+
+ if (DMX_GCOPS_OFFSCREEN(pSrc) || DMX_GCOPS_OFFSCREEN(pDst))
+ return miHandleExposures(pSrc, pDst, pGC, srcx, srcy, width, height,
+ dstx, dsty, bitPlane);
+
+ DMX_GCOPS_SET_DRAWABLE(pSrc, srcDraw);
+ DMX_GCOPS_SET_DRAWABLE(pDst, dstDraw);
+
+ XCopyPlane(dmxScreen->beDisplay, srcDraw, dstDraw, pGCPriv->gc,
+ srcx, srcy, width, height, dstx, dsty, bitPlane);
+ dmxSync(dmxScreen, FALSE);
+
+ return miHandleExposures(pSrc, pDst, pGC, srcx, srcy, width, height,
+ dstx, dsty, bitPlane);
+}
+
+/** Render list of points, \a pptInit in \a pDrawable on the back-end
+ * server associated with \a pDrawable's screen. If the offscreen
+ * optimization is enabled, only draw when \a pDrawable is at least
+ * partially visible. */
+void dmxPolyPoint(DrawablePtr pDrawable, GCPtr pGC,
+ int mode, int npt, DDXPointPtr pptInit)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ Drawable draw;
+
+ if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
+
+ DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
+
+ XDrawPoints(dmxScreen->beDisplay, draw, pGCPriv->gc,
+ (XPoint *)pptInit, npt, mode);
+ dmxSync(dmxScreen, FALSE);
+}
+
+/** Render list of connected lines, \a pptInit in \a pDrawable on the
+ * back-end server associated with \a pDrawable's screen. If the
+ * offscreen optimization is enabled, only draw when \a pDrawable is at
+ * least partially visible. */
+void dmxPolylines(DrawablePtr pDrawable, GCPtr pGC,
+ int mode, int npt, DDXPointPtr pptInit)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ Drawable draw;
+
+ if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
+
+ DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
+
+ XDrawLines(dmxScreen->beDisplay, draw, pGCPriv->gc,
+ (XPoint *)pptInit, npt, mode);
+ dmxSync(dmxScreen, FALSE);
+}
+
+/** Render list of disjoint segments, \a pSegs in \a pDrawable on the
+ * back-end server associated with \a pDrawable's screen. If the
+ * offscreen optimization is enabled, only draw when \a pDrawable is at
+ * least partially visible. */
+void dmxPolySegment(DrawablePtr pDrawable, GCPtr pGC,
+ int nseg, xSegment *pSegs)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ Drawable draw;
+
+ if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
+
+ DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
+
+ XDrawSegments(dmxScreen->beDisplay, draw, pGCPriv->gc,
+ (XSegment *)pSegs, nseg);
+ dmxSync(dmxScreen, FALSE);
+}
+
+/** Render list of rectangle outlines, \a pRects in \a pDrawable on the
+ * back-end server associated with \a pDrawable's screen. If the
+ * offscreen optimization is enabled, only draw when \a pDrawable is at
+ * least partially visible. */
+void dmxPolyRectangle(DrawablePtr pDrawable, GCPtr pGC,
+ int nrects, xRectangle *pRects)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ Drawable draw;
+
+ if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
+
+ DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
+
+ XDrawRectangles(dmxScreen->beDisplay, draw, pGCPriv->gc,
+ (XRectangle *)pRects, nrects);
+
+ dmxSync(dmxScreen, FALSE);
+}
+
+/** Render list of arc outlines, \a parcs in \a pDrawable on the
+ * back-end server associated with \a pDrawable's screen. If the
+ * offscreen optimization is enabled, only draw when \a pDrawable is at
+ * least partially visible. */
+void dmxPolyArc(DrawablePtr pDrawable, GCPtr pGC,
+ int narcs, xArc *parcs)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ Drawable draw;
+
+ if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
+
+ DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
+
+ XDrawArcs(dmxScreen->beDisplay, draw, pGCPriv->gc,
+ (XArc *)parcs, narcs);
+ dmxSync(dmxScreen, FALSE);
+}
+
+/** Render a filled polygons in \a pDrawable on the back-end server
+ * associated with \a pDrawable's screen. If the offscreen
+ * optimization is enabled, only draw when \a pDrawable is at least
+ * partially visible. */
+void dmxFillPolygon(DrawablePtr pDrawable, GCPtr pGC,
+ int shape, int mode, int count, DDXPointPtr pPts)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ Drawable draw;
+
+ if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
+
+ DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
+
+ XFillPolygon(dmxScreen->beDisplay, draw, pGCPriv->gc,
+ (XPoint *)pPts, count, shape, mode);
+ dmxSync(dmxScreen, FALSE);
+}
+
+/** Render list of filled rectangles, \a prectInit in \a pDrawable on
+ * the back-end server associated with \a pDrawable's screen. If the
+ * offscreen optimization is enabled, only draw when \a pDrawable is at
+ * least partially visible. */
+void dmxPolyFillRect(DrawablePtr pDrawable, GCPtr pGC,
+ int nrectFill, xRectangle *prectInit)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ Drawable draw;
+
+ if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
+
+ DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
+
+ XFillRectangles(dmxScreen->beDisplay, draw, pGCPriv->gc,
+ (XRectangle *)prectInit, nrectFill);
+ dmxSync(dmxScreen, FALSE);
+}
+
+/** Render list of filled arcs, \a parcs in \a pDrawable on the back-end
+ * server associated with \a pDrawable's screen. If the offscreen
+ * optimization is enabled, only draw when \a pDrawable is at least
+ * partially visible. */
+void dmxPolyFillArc(DrawablePtr pDrawable, GCPtr pGC,
+ int narcs, xArc *parcs)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ Drawable draw;
+
+ if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
+
+ DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
+
+ XFillArcs(dmxScreen->beDisplay, draw, pGCPriv->gc,
+ (XArc *)parcs, narcs);
+ dmxSync(dmxScreen, FALSE);
+}
+
+/** Render string of 8-bit \a chars (foreground only) in \a pDrawable on
+ * the back-end server associated with \a pDrawable's screen. If the
+ * offscreen optimization is enabled, only draw when \a pDrawable is at
+ * least partially visible. */
+int dmxPolyText8(DrawablePtr pDrawable, GCPtr pGC,
+ int x, int y, int count, char *chars)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ unsigned long n, i;
+ int w;
+ CharInfoPtr charinfo[255];
+ Drawable draw;
+
+ GetGlyphs(pGC->font, (unsigned long)count, (unsigned char *)chars,
+ Linear8Bit, &n, charinfo);
+
+ /* Calculate text width */
+ w = 0;
+ for (i = 0; i < n; i++) w += charinfo[i]->metrics.characterWidth;
+
+ if (n != 0 && !DMX_GCOPS_OFFSCREEN(pDrawable)) {
+ DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
+
+ XDrawString(dmxScreen->beDisplay, draw, pGCPriv->gc,
+ x, y, chars, count);
+ dmxSync(dmxScreen, FALSE);
+ }
+
+ return x+w;
+}
+
+/** Render string of 16-bit \a chars (foreground only) in \a pDrawable
+ * on the back-end server associated with \a pDrawable's screen. If
+ * the offscreen optimization is enabled, only draw when \a pDrawable
+ * is at least partially visible. */
+int dmxPolyText16(DrawablePtr pDrawable, GCPtr pGC,
+ int x, int y, int count, unsigned short *chars)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ unsigned long n, i;
+ int w;
+ CharInfoPtr charinfo[255];
+ Drawable draw;
+
+ GetGlyphs(pGC->font, (unsigned long)count, (unsigned char *)chars,
+ (FONTLASTROW(pGC->font) == 0) ? Linear16Bit : TwoD16Bit,
+ &n, charinfo);
+
+ /* Calculate text width */
+ w = 0;
+ for (i = 0; i < n; i++) w += charinfo[i]->metrics.characterWidth;
+
+ if (n != 0 && !DMX_GCOPS_OFFSCREEN(pDrawable)) {
+ DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
+
+ XDrawString16(dmxScreen->beDisplay, draw, pGCPriv->gc,
+ x, y, (XChar2b *)chars, count);
+ dmxSync(dmxScreen, FALSE);
+ }
+
+ return x+w;
+}
+
+/** Render string of 8-bit \a chars (both foreground and background) in
+ * \a pDrawable on the back-end server associated with \a pDrawable's
+ * screen. If the offscreen optimization is enabled, only draw when \a
+ * pDrawable is at least partially visible. */
+void dmxImageText8(DrawablePtr pDrawable, GCPtr pGC,
+ int x, int y, int count, char *chars)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ Drawable draw;
+
+ if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
+
+ DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
+
+ XDrawImageString(dmxScreen->beDisplay, draw, pGCPriv->gc,
+ x, y, chars, count);
+ dmxSync(dmxScreen, FALSE);
+}
+
+/** Render string of 16-bit \a chars (both foreground and background) in
+ * \a pDrawable on the back-end server associated with \a pDrawable's
+ * screen. If the offscreen optimization is enabled, only draw when \a
+ * pDrawable is at least partially visible. */
+void dmxImageText16(DrawablePtr pDrawable, GCPtr pGC,
+ int x, int y, int count, unsigned short *chars)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
+ dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
+ Drawable draw;
+
+ if (DMX_GCOPS_OFFSCREEN(pDrawable)) return;
+
+ DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
+
+ XDrawImageString16(dmxScreen->beDisplay, draw, pGCPriv->gc,
+ x, y, (XChar2b *)chars, count);
+ dmxSync(dmxScreen, FALSE);
+}
+
+/** Image Glyph Blt -- this function should never be called. */
+void dmxImageGlyphBlt(DrawablePtr pDrawable, GCPtr pGC,
+ int x, int y, unsigned int nglyph,
+ CharInfoPtr *ppci, pointer pglyphBase)
+{
+ /* Error -- this should never happen! */
+}
+
+/** Poly Glyph Blt -- this function should never be called. */
+void dmxPolyGlyphBlt(DrawablePtr pDrawable, GCPtr pGC,
+ int x, int y, unsigned int nglyph,
+ CharInfoPtr *ppci, pointer pglyphBase)
+{
+ /* Error -- this should never happen! */
+}
+
+/** Push Pixels -- this function should never be called. */
+void dmxPushPixels(GCPtr pGC, PixmapPtr pBitMap, DrawablePtr pDst,
+ int w, int h, int x, int y)
+{
+ /* Error -- this should never happen! */
+}
+
+/**********************************************************************
+ * Miscellaneous drawing commands
+ */
+
+/** When Xinerama is active, the client pixmaps are always obtained from
+ * screen 0. When screen 0 is detached, the pixmaps must be obtained
+ * from any other screen that is not detached. Usually, this is screen
+ * 1. */
+static DMXScreenInfo *dmxFindAlternatePixmap(DrawablePtr pDrawable, XID *draw)
+{
+#ifdef PANORAMIX
+ PanoramiXRes *pXinPix;
+ int i;
+ DMXScreenInfo *dmxScreen;
+
+ if (noPanoramiXExtension) return NULL;
+ if (pDrawable->type != DRAWABLE_PIXMAP) return NULL;
+
+ if (Success != dixLookupResourceByType((pointer*) &pXinPix,
+ pDrawable->id, XRT_PIXMAP,
+ NullClient, DixUnknownAccess))
+ return NULL;
+
+ FOR_NSCREENS_FORWARD_SKIP(i) {
+ dmxScreen = &dmxScreens[i];
+ if (dmxScreen->beDisplay) {
+ PixmapPtr pSrc;
+ dmxPixPrivPtr pSrcPriv;
+
+ dixLookupResourceByType((pointer*) &pSrc, pXinPix->info[i].id,
+ RT_PIXMAP, NullClient, DixUnknownAccess);
+ pSrcPriv = DMX_GET_PIXMAP_PRIV(pSrc);
+ if (pSrcPriv->pixmap) {
+ *draw = pSrcPriv->pixmap;
+ return dmxScreen;
+ }
+ }
+ }
+#endif
+ return NULL;
+}
+
+/** Get an image from the back-end server associated with \a pDrawable's
+ * screen. If \a pDrawable is a window, it must be viewable to get an
+ * image from it. If it is not viewable, then get the image from the
+ * first ancestor of \a pDrawable that is viewable. If no viewable
+ * ancestor is found, then simply return without getting an image. */
+void dmxGetImage(DrawablePtr pDrawable, int sx, int sy, int w, int h,
+ unsigned int format, unsigned long planeMask, char *pdstLine)
+{
+ DMXScreenInfo *dmxScreen = &dmxScreens[pDrawable->pScreen->myNum];
+ XImage *img;
+ Drawable draw;
+
+ /* Cannot get image from unviewable window */
+ if (pDrawable->type == DRAWABLE_WINDOW) {
+ WindowPtr pWindow = (WindowPtr)pDrawable;
+ if (!pWindow->viewable) {
+ while (!pWindow->viewable && pWindow->parent) {
+ sx += pWindow->origin.x - wBorderWidth(pWindow);
+ sx += pWindow->origin.y - wBorderWidth(pWindow);
+ pWindow = pWindow->parent;
+ }
+ if (!pWindow->viewable) {
+ return;
+ }
+ }
+ DMX_GCOPS_SET_DRAWABLE(&pWindow->drawable, draw);
+ if (DMX_GCOPS_OFFSCREEN(&pWindow->drawable))
+ return;
+ } else {
+ DMX_GCOPS_SET_DRAWABLE(pDrawable, draw);
+ if (DMX_GCOPS_OFFSCREEN(pDrawable)) {
+ /* Try to find the pixmap on a non-detached Xinerama screen */
+ dmxScreen = dmxFindAlternatePixmap(pDrawable, &draw);
+ if (!dmxScreen) return;
+ }
+ }
+
+ img = XGetImage(dmxScreen->beDisplay, draw,
+ sx, sy, w, h, planeMask, format);
+ if (img) {
+ int len = img->bytes_per_line * img->height;
+ memmove(pdstLine, img->data, len);
+ XDestroyImage(img);
+ }
+
+ dmxSync(dmxScreen, FALSE);
+}
+
+/** Get Spans -- this function should never be called. */
+void dmxGetSpans(DrawablePtr pDrawable, int wMax,
+ DDXPointPtr ppt, int *pwidth, int nspans,
+ char *pdstStart)
+{
+ /* Error -- this should never happen! */
+}