/*
* 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 <[email protected]>
*
*/
/** \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"
#include "panoramiXsrv.h"
#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 = REGION_CREATE(pGC->pScreen, &box, 1);
pClip = REGION_CREATE(pGC->pScreen, NullBox, 1);
REGION_COPY(pGC->pScreen, pClip, pGC->pCompositeClip);
REGION_TRANSLATE(pGC->pScreen, pClip,
-pDrawable->x, -pDrawable->y);
REGION_INTERSECT(pGC->pScreen, pSubImages, pSubImages, pClip);
nBox = REGION_NUM_RECTS(pSubImages);
pBox = REGION_RECTS(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++;
}
REGION_DESTROY(pGC->pScreen, pClip);
REGION_DESTROY(pGC->pScreen, 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 (!(pXinPix = (PanoramiXRes *)LookupIDByType(pDrawable->id, XRT_PIXMAP)))
return NULL;
for (i = 1; i < PanoramiXNumScreens; i++) {
dmxScreen = &dmxScreens[i];
if (dmxScreen->beDisplay) {
PixmapPtr pSrc;
dmxPixPrivPtr pSrcPriv;
pSrc = (PixmapPtr)LookupIDByType(pXinPix->info[i].id,
RT_PIXMAP);
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! */
}
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