/** 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;
}
/** Create a graphics context on the back-end server associated /a pGC's
* screen. */
Bool
dmxCreateGC(GCPtr pGC)
{
ScreenPtr pScreen = pGC->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
Bool ret;
DMX_UNWRAP(CreateGC, dmxScreen, pScreen);
if ((ret = pScreen->CreateGC(pGC))) {
/* Save the old funcs */
pGCPriv->funcs = pGC->funcs;
pGCPriv->ops = NULL;
pGC->funcs = &dmxGCFuncs;
if (dmxScreen->beDisplay) {
dmxBECreateGC(pScreen, pGC);
}
else {
pGCPriv->gc = NULL;
}
/* Check for "magic special case"
* 1. see CreateGC in dix/gc.c for more info
* 2. see dmxChangeGC for more info
*/
pGCPriv->msc = (!pGC->tileIsPixel && !pGC->tile.pixmap);
}
DMX_WRAP(CreateGC, dmxCreateGC, dmxScreen, pScreen);
return ret;
}
/** Copy \a pGCSrc to \a pGCDst on the back-end server associated with
* \a pGCSrc's screen. */
void
dmxCopyGC(GCPtr pGCSrc, unsigned long changes, GCPtr pGCDst)
{
ScreenPtr pScreen = pGCSrc->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
dmxGCPrivPtr pGCSrcPriv = DMX_GET_GC_PRIV(pGCSrc);
dmxGCPrivPtr pGCDstPriv = DMX_GET_GC_PRIV(pGCDst);
DMX_GC_FUNC_PROLOGUE(pGCDst);
pGCDst->funcs->CopyGC(pGCSrc, changes, pGCDst);
/* Copy the GC on the back-end server */
if (dmxScreen->beDisplay)
XCopyGC(dmxScreen->beDisplay, pGCSrcPriv->gc, changes, pGCDstPriv->gc);
DMX_GC_FUNC_EPILOGUE(pGCDst);
}
/** 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 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 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);
}
/** Free the \a pGC on the back-end server. */
Bool
dmxBEFreeGC(GCPtr pGC)
{
ScreenPtr pScreen = pGC->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
if (pGCPriv->gc) {
XFreeGC(dmxScreen->beDisplay, pGCPriv->gc);
pGCPriv->gc = NULL;
return TRUE;
}
return 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);
}
/** 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);
}
/** Destroy a GC's clip rects. */
void
dmxDestroyClip(GCPtr pGC)
{
ScreenPtr pScreen = pGC->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
DMX_GC_FUNC_PROLOGUE(pGC);
pGC->funcs->DestroyClip(pGC);
/* Set the client clip on the back-end server to None */
if (dmxScreen->beDisplay)
XSetClipMask(dmxScreen->beDisplay, pGCPriv->gc, None);
DMX_GC_FUNC_EPILOGUE(pGC);
}
/** 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);
}
/** Change the clip rects for a GC. */
void
dmxChangeClip(GCPtr pGC, int type, void *pvalue, int nrects)
{
ScreenPtr pScreen = pGC->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
XRectangle *pRects;
BoxPtr pBox;
int i, nRects;
DMX_GC_FUNC_PROLOGUE(pGC);
pGC->funcs->ChangeClip(pGC, type, pvalue, nrects);
/* Set the client clip on the back-end server */
if (!pGC->clientClip) {
if (dmxScreen->beDisplay)
XSetClipMask(dmxScreen->beDisplay, pGCPriv->gc, None);
} else {
if (dmxScreen->beDisplay) {
nRects = RegionNumRects((RegionPtr) pGC->clientClip);
pRects = malloc(nRects * sizeof(*pRects));
pBox = RegionRects((RegionPtr) pGC->clientClip);
for (i = 0; i < nRects; i++) {
pRects[i].x = pBox[i].x1;
pRects[i].y = pBox[i].y1;
pRects[i].width = pBox[i].x2 - pBox[i].x1;
pRects[i].height = pBox[i].y2 - pBox[i].y1;
}
XSetClipRectangles(dmxScreen->beDisplay, pGCPriv->gc,
pGC->clipOrg.x, pGC->clipOrg.y,
pRects, nRects, Unsorted);
free(pRects);
}
}
DMX_GC_FUNC_EPILOGUE(pGC);
}
/** Create the GC on the back-end server. */
void
dmxBECreateGC(ScreenPtr pScreen, GCPtr pGC)
{
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
int i;
for (i = 0; i < dmxScreen->beNumPixmapFormats; i++) {
if (pGC->depth == dmxScreen->bePixmapFormats[i].depth) {
unsigned long mask;
XGCValues gcvals;
mask = GCGraphicsExposures;
gcvals.graphics_exposures = FALSE;
/* Create GC in the back-end servers */
pGCPriv->gc = XCreateGC(dmxScreen->beDisplay,
dmxScreen->scrnDefDrawables[i],
mask, &gcvals);
break;
}
}
}
/** Validate a graphics context, \a pGC, locally in the DMX server and
* recompute the composite clip, if necessary. */
void
dmxValidateGC(GCPtr pGC, unsigned long changes, DrawablePtr pDrawable)
{
dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
DMX_GC_FUNC_PROLOGUE(pGC);
#if 0
pGC->funcs->ValidateGC(pGC, changes, pDrawable);
#endif
if (pDrawable->type == DRAWABLE_WINDOW ||
pDrawable->type == DRAWABLE_PIXMAP) {
/* Save the old ops, since we're about to change the ops in the
* epilogue.
*/
pGCPriv->ops = pGC->ops;
}
else {
pGCPriv->ops = NULL;
}
/* If the client clip is different or moved OR the subwindowMode has
* changed OR the window's clip has changed since the last
* validation, then we need to recompute the composite clip.
*/
if ((changes & (GCClipXOrigin |
GCClipYOrigin |
GCClipMask |
GCSubwindowMode)) ||
(pDrawable->serialNumber !=
(pGC->serialNumber & DRAWABLE_SERIAL_BITS))) {
miComputeCompositeClip(pGC, pDrawable);
}
DMX_GC_FUNC_EPILOGUE(pGC);
}
/** 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! */
}
}
/** Set the values in the graphics context on the back-end server
* associated with \a pGC's screen. */
void
dmxChangeGC(GCPtr pGC, unsigned long mask)
{
ScreenPtr pScreen = pGC->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
dmxGCPrivPtr pGCPriv = DMX_GET_GC_PRIV(pGC);
XGCValues v;
DMX_GC_FUNC_PROLOGUE(pGC);
#if 0
pGC->funcs->ChangeGC(pGC, mask);
#endif
/* Handle "magic special case" from CreateGC */
if (pGCPriv->msc) {
/* The "magic special case" is used to handle the case where a
* foreground pixel is set when the GC is created so that a
* "pseudo default-tile" can be created and used in case the
* fillstyle was set to FillTiled. This specific case is tested
* in xtest (XCreateGC test #3). What has happened in dix by
* the time it reaches here is (1) the pGC->tile.pixel has been
* set to pGC->fgPixel and pGC->tileIsPixel is set, (2) if a
* tile has also been set, then pGC->tileIsPixel is unset and
* pGC->tile.pixmap is initialized; else, the default tile is
* created and pGC->tileIsPixel is unset and pGC->tile.pixmap is
* initialized to the "pseudo default-tile". In either case,
* pGC->tile.pixmap is set; however, in the "magic special case"
* the mask is not updated to allow us to detect that we should
* initialize the GCTile in the back-end server. Thus, we catch
* this case in dmxCreateGC and add GCTile to the mask here.
* Are there any cases that I've missed?
*/
/* Make sure that the tile.pixmap is set, just in case the user
* set GCTile in the mask but forgot to set vals.pixmap
*/
if (pGC->tile.pixmap)
mask |= GCTile;
/* This only happens once when the GC is created */
pGCPriv->msc = FALSE;
}
/* Update back-end server's gc */
if (mask & GCFunction)
v.function = pGC->alu;
if (mask & GCPlaneMask)
v.plane_mask = pGC->planemask;
if (mask & GCForeground)
v.foreground = pGC->fgPixel;
if (mask & GCBackground)
v.background = pGC->bgPixel;
if (mask & GCLineWidth)
v.line_width = pGC->lineWidth;
if (mask & GCLineStyle)
v.line_style = pGC->lineStyle;
if (mask & GCCapStyle)
v.cap_style = pGC->capStyle;
if (mask & GCJoinStyle)
v.join_style = pGC->joinStyle;
if (mask & GCFillStyle)
v.fill_style = pGC->fillStyle;
if (mask & GCFillRule)
v.fill_rule = pGC->fillRule;
if (mask & GCTile) {
if (pGC->tileIsPixel) {
mask &= ~GCTile;
}
else {
dmxPixPrivPtr pPixPriv = DMX_GET_PIXMAP_PRIV(pGC->tile.pixmap);
v.tile = (Drawable) pPixPriv->pixmap;
}
}
if (mask & GCStipple) {
dmxPixPrivPtr pPixPriv = DMX_GET_PIXMAP_PRIV(pGC->stipple);
v.stipple = (Drawable) pPixPriv->pixmap;
}
if (mask & GCTileStipXOrigin)
v.ts_x_origin = pGC->patOrg.x;
if (mask & GCTileStipYOrigin)
v.ts_y_origin = pGC->patOrg.y;
if (mask & GCFont) {
if (dmxScreen->beDisplay) {
dmxFontPrivPtr pFontPriv;
pFontPriv = FontGetPrivate(pGC->font, dmxFontPrivateIndex);
v.font = pFontPriv->font[pScreen->myNum]->fid;
}
else {
mask &= ~GCFont;
}
}
if (mask & GCSubwindowMode)
v.subwindow_mode = pGC->subWindowMode;
/* Graphics exposures are not needed on the back-ends since they can
be generated on the front-end thereby saving bandwidth. */
if (mask & GCGraphicsExposures)
mask &= ~GCGraphicsExposures;
if (mask & GCClipXOrigin)
v.clip_x_origin = pGC->clipOrg.x;
if (mask & GCClipYOrigin)
v.clip_y_origin = pGC->clipOrg.y;
if (mask & GCClipMask)
mask &= ~GCClipMask; /* See ChangeClip */
if (mask & GCDashOffset)
v.dash_offset = pGC->dashOffset;
if (mask & GCDashList) {
mask &= ~GCDashList;
if (dmxScreen->beDisplay)
XSetDashes(dmxScreen->beDisplay, pGCPriv->gc,
pGC->dashOffset, (char *) pGC->dash, pGC->numInDashList);
}
if (mask & GCArcMode)
v.arc_mode = pGC->arcMode;
if (mask && dmxScreen->beDisplay) {
XChangeGC(dmxScreen->beDisplay, pGCPriv->gc, mask, &v);
dmxSync(dmxScreen, FALSE);
}
DMX_GC_FUNC_EPILOGUE(pGC);
}
