/** Create \a glyphSet on the backend screen number \a idx. */
int
dmxBECreateGlyphSet(int idx, GlyphSetPtr glyphSet)
{
XRenderPictFormat *pFormat;
DMXScreenInfo *dmxScreen = &dmxScreens[idx];
dmxGlyphPrivPtr glyphPriv = DMX_GET_GLYPH_PRIV(glyphSet);
PictFormatPtr pFmt = glyphSet->format;
int (*oldErrorHandler) (Display *, XErrorEvent *);
pFormat = dmxFindFormat(dmxScreen, pFmt);
if (!pFormat) {
return BadMatch;
}
dmxGlyphLastError = 0;
oldErrorHandler = XSetErrorHandler(dmxGlyphErrorHandler);
/* Catch when this fails */
glyphPriv->glyphSets[idx]
= XRenderCreateGlyphSet(dmxScreen->beDisplay, pFormat);
XSetErrorHandler(oldErrorHandler);
if (dmxGlyphLastError) {
return dmxGlyphLastError;
}
return Success;
}
/** Create a picture on the appropriate screen. This is the actual
* function that creates the picture. However, if the associated
* window has not yet been created due to lazy window creation, then
* delay the picture creation until the window is mapped. */
static Picture
dmxDoCreatePicture(PicturePtr pPicture)
{
DrawablePtr pDraw = pPicture->pDrawable;
ScreenPtr pScreen = pDraw->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
XRenderPictFormat *pFormat;
Drawable draw;
if (pPicture->pDrawable->type == DRAWABLE_WINDOW) {
dmxWinPrivPtr pWinPriv = DMX_GET_WINDOW_PRIV((WindowPtr) (pDraw));
if (!(draw = pWinPriv->window)) {
/* Window has not been created yet due to the window
* optimization. Delay picture creation until window is
* mapped.
*/
pWinPriv->hasPict = TRUE;
return 0;
}
}
else {
dmxPixPrivPtr pPixPriv = DMX_GET_PIXMAP_PRIV((PixmapPtr) (pDraw));
if (!(draw = pPixPriv->pixmap)) {
/* FIXME: Zero width/height pixmap?? */
return 0;
}
}
/* This should not be reached if the back-end display has been
* detached because the pWinPriv->window or the pPixPriv->pixmap
* will be NULL; however, we add it here for completeness
*/
if (!dmxScreen->beDisplay)
return 0;
pFormat = dmxFindFormat(dmxScreen, pPicture->pFormat);
return XRenderCreatePicture(dmxScreen->beDisplay, draw, pFormat, 0, 0);
}
/** Composite a triangle fan on the appropriate screen. For a complete
* description see the protocol document of the RENDER library. */
void dmxTriFan(CARD8 op, PicturePtr pSrc, PicturePtr pDst,
PictFormatPtr maskFormat,
INT16 xSrc, INT16 ySrc,
int npoint, xPointFixed *points)
{
ScreenPtr pScreen = pDst->pDrawable->pScreen;
DMXScreenInfo *dmxScreen = &dmxScreens[pScreen->myNum];
PictureScreenPtr ps = GetPictureScreen(pScreen);
dmxPictPrivPtr pSrcPriv = DMX_GET_PICT_PRIV(pSrc);
dmxPictPrivPtr pDstPriv = DMX_GET_PICT_PRIV(pDst);
DMX_UNWRAP(TriFan, dmxScreen, ps);
#if 0
if (ps->TriFan)
ps->TriFan(op, pSrc, pDst, maskFormat, xSrc, ySrc, npoint, *points);
#endif
/* Draw trapezoids on back-end server */
if (pDstPriv->pict) {
XRenderPictFormat *pFormat;
pFormat = dmxFindFormat(dmxScreen, maskFormat);
if (!pFormat) {
/* FIXME: Error! */
}
XRenderCompositeTriFan(dmxScreen->beDisplay,
op,
pSrcPriv->pict,
pDstPriv->pict,
pFormat,
xSrc, ySrc,
(XPointFixed *)points,
npoint);
dmxSync(dmxScreen, FALSE);
}
DMX_WRAP(TriFan, dmxTriFan, dmxScreen, ps);
}
/** Composite glyphs on each screen into the requested picture. If
* either the src or dest picture has not been allocated due to lazy
* window creation, this request will gracefully return. */
static int
dmxProcRenderCompositeGlyphs(ClientPtr client)
{
int ret;
REQUEST(xRenderCompositeGlyphsReq);
ret = dmxSaveRenderVector[stuff->renderReqType] (client);
/* For the following to work with PanoramiX, it assumes that Render
* wraps the ProcRenderVector after dmxRenderInit has been called.
*/
if (ret == Success) {
PicturePtr pSrc;
dmxPictPrivPtr pSrcPriv;
PicturePtr pDst;
dmxPictPrivPtr pDstPriv;
PictFormatPtr pFmt;
XRenderPictFormat *pFormat;
int size;
int scrnNum;
DMXScreenInfo *dmxScreen;
CARD8 *buffer;
CARD8 *end;
int space;
int nglyph;
char *glyphs;
char *curGlyph;
xGlyphElt *elt;
int nelt;
XGlyphElt8 *elts;
XGlyphElt8 *curElt;
GlyphSetPtr glyphSet;
dmxGlyphPrivPtr glyphPriv;
dixLookupResourceByType((pointer *) &pSrc,
stuff->src, PictureType, client, DixReadAccess);
pSrcPriv = DMX_GET_PICT_PRIV(pSrc);
if (!pSrcPriv->pict)
return ret;
dixLookupResourceByType((pointer *) &pDst,
stuff->dst, PictureType,
client, DixWriteAccess);
pDstPriv = DMX_GET_PICT_PRIV(pDst);
if (!pDstPriv->pict)
return ret;
scrnNum = pDst->pDrawable->pScreen->myNum;
dmxScreen = &dmxScreens[scrnNum];
/* Note: If the back-end display has been detached, then it
* should not be possible to reach here since the pSrcPriv->pict
* and pDstPriv->pict will have already been set to 0.
*/
if (!dmxScreen->beDisplay)
return ret;
if (stuff->maskFormat)
dixLookupResourceByType((pointer *) &pFmt,
stuff->maskFormat, PictFormatType,
client, DixReadAccess);
else
pFmt = NULL;
pFormat = dmxFindFormat(dmxScreen, pFmt);
switch (stuff->renderReqType) {
case X_RenderCompositeGlyphs8:
size = sizeof(CARD8);
break;
case X_RenderCompositeGlyphs16:
size = sizeof(CARD16);
break;
case X_RenderCompositeGlyphs32:
size = sizeof(CARD32);
break;
default:
return BadPictOp; /* Can't happen */
}
buffer = (CARD8 *) (stuff + 1);
end = (CARD8 *) stuff + (stuff->length << 2);
nelt = 0;
nglyph = 0;
while (buffer + sizeof(xGlyphElt) < end) {
elt = (xGlyphElt *) buffer;
buffer += sizeof(xGlyphElt);
if (elt->len == 0xff) {
buffer += 4;
}
else {
nelt++;
nglyph += elt->len;
space = size * elt->len;
if (space & 3)
space += 4 - (space & 3);
buffer += space;
}
}
/* The following only works for Render version > 0.2 */
/* All of the XGlyphElt* structure sizes are identical */
elts = malloc(nelt * sizeof(XGlyphElt8));
if (!elts)
return BadAlloc;
glyphs = malloc(nglyph * size);
if (!glyphs) {
free(elts);
return BadAlloc;
}
buffer = (CARD8 *) (stuff + 1);
end = (CARD8 *) stuff + (stuff->length << 2);
curGlyph = glyphs;
curElt = elts;
dixLookupResourceByType((pointer *) &glyphSet,
stuff->glyphset, GlyphSetType,
client, DixReadAccess);
glyphPriv = DMX_GET_GLYPH_PRIV(glyphSet);
while (buffer + sizeof(xGlyphElt) < end) {
elt = (xGlyphElt *) buffer;
buffer += sizeof(xGlyphElt);
if (elt->len == 0xff) {
dixLookupResourceByType((pointer *) &glyphSet,
*((CARD32 *) buffer),
GlyphSetType, client, DixReadAccess);
glyphPriv = DMX_GET_GLYPH_PRIV(glyphSet);
buffer += 4;
}
else {
curElt->glyphset = glyphPriv->glyphSets[scrnNum];
curElt->xOff = elt->deltax;
curElt->yOff = elt->deltay;
curElt->nchars = elt->len;
curElt->chars = curGlyph;
memcpy(curGlyph, buffer, size * elt->len);
curGlyph += size * elt->len;
curElt++;
space = size * elt->len;
if (space & 3)
space += 4 - (space & 3);
buffer += space;
}
}
switch (stuff->renderReqType) {
case X_RenderCompositeGlyphs8:
XRenderCompositeText8(dmxScreen->beDisplay, stuff->op,
pSrcPriv->pict, pDstPriv->pict,
pFormat,
stuff->xSrc, stuff->ySrc, 0, 0, elts, nelt);
break;
case X_RenderCompositeGlyphs16:
XRenderCompositeText16(dmxScreen->beDisplay, stuff->op,
pSrcPriv->pict, pDstPriv->pict,
pFormat,
stuff->xSrc, stuff->ySrc,
0, 0, (XGlyphElt16 *) elts, nelt);
break;
case X_RenderCompositeGlyphs32:
XRenderCompositeText32(dmxScreen->beDisplay, stuff->op,
pSrcPriv->pict, pDstPriv->pict,
pFormat,
stuff->xSrc, stuff->ySrc,
0, 0, (XGlyphElt32 *) elts, nelt);
break;
}
dmxSync(dmxScreen, FALSE);
free(elts);
free(glyphs);
}
return ret;
}
/** Create a Glyph Set on each screen. Save the glyphset ID from each
* screen in the Glyph Set's private structure. Fail if the format
* requested is not available or if the Glyph Set cannot be created on
* the screen. */
static int dmxProcRenderCreateGlyphSet(ClientPtr client)
{
int ret;
REQUEST(xRenderCreateGlyphSetReq);
ret = dmxSaveRenderVector[stuff->renderReqType](client);
if (ret == Success) {
int (*oldErrorHandler)(Display *, XErrorEvent *);
GlyphSetPtr glyphSet;
dmxGlyphPrivPtr glyphPriv;
int i;
PictFormatPtr pFmt;
XRenderPictFormat *pFormat;
/* Look up glyphSet that was just created ???? */
/* Store glyphsets from backends in glyphSet->devPrivate ????? */
/* Make sure we handle all errors here!! */
glyphSet = SecurityLookupIDByType(client, stuff->gsid, GlyphSetType,
SecurityDestroyAccess);
glyphPriv = xalloc(sizeof(dmxGlyphPrivRec));
if (!glyphPriv) return BadAlloc;
glyphPriv->glyphSets = NULL;
MAXSCREENSALLOC_RETURN(glyphPriv->glyphSets, BadAlloc);
DMX_SET_GLYPH_PRIV(glyphSet, glyphPriv);
pFmt = SecurityLookupIDByType(client, stuff->format, PictFormatType,
SecurityReadAccess);
oldErrorHandler = XSetErrorHandler(dmxGlyphErrorHandler);
for (i = 0; i < dmxNumScreens; i++) {
DMXScreenInfo *dmxScreen = &dmxScreens[i];
if (!dmxScreen->beDisplay) {
glyphPriv->glyphSets[i] = 0;
continue;
}
pFormat = dmxFindFormat(dmxScreen, pFmt);
if (!pFormat) {
int j;
/* Free the glyph sets we've allocated thus far */
for (j = 0; j < i; j++)
dmxBEFreeGlyphSet(screenInfo.screens[j], glyphSet);
/* Free the resource created by render */
FreeResource(stuff->gsid, RT_NONE);
ret = BadMatch;
break;
}
/* Catch when this fails */
glyphPriv->glyphSets[i]
= XRenderCreateGlyphSet(dmxScreen->beDisplay, pFormat);
if (dmxGlyphLastError) {
int j;
/* Free the glyph sets we've allocated thus far */
for (j = 0; j < i; j++)
dmxBEFreeGlyphSet(screenInfo.screens[j], glyphSet);
/* Free the resource created by render */
FreeResource(stuff->gsid, RT_NONE);
ret = dmxGlyphLastError;
break;
}
}
XSetErrorHandler(oldErrorHandler);
}
return ret;
}