void
SplashInitFrameShape(Splash * splash, int imageIndex) {
ImageRect maskRect;
XRectangle *rects;
SplashImage *frame = splash->frames + imageIndex;
frame->rects = NULL;
frame->numRects = 0;
if (!splash->maskRequired)
return;
if (!shapeSupported)
return;
initRect(&maskRect, 0, 0, splash->width, splash->height, 1,
splash->width * splash->imageFormat.depthBytes,
splash->frames[imageIndex].bitmapBits, &splash->imageFormat);
if (!IS_SAFE_SIZE_MUL(splash->width / 2 + 1, splash->height)) {
return;
}
rects = SAFE_SIZE_ARRAY_ALLOC(malloc,
sizeof(XRectangle), (splash->width / 2 + 1) * splash->height);
if (!rects) {
return;
}
frame->numRects = BitmapToYXBandedRectangles(&maskRect, rects);
frame->rects = SAFE_SIZE_ARRAY_ALLOC(malloc, frame->numRects, sizeof(XRectangle));
if (frame->rects) { // handle the error after the if(){}
memcpy(frame->rects, rects, frame->numRects * sizeof(XRectangle));
}
free(rects);
}
void
SplashInitFrameShape(Splash * splash, int imageIndex)
{
RGNDATA *pRgnData;
RGNDATAHEADER *pRgnHdr;
ImageRect maskRect;
if (!splash->maskRequired)
return;
/* reserving memory for the worst case */
if (!IS_SAFE_SIZE_MUL(splash->width / 2 + 1, splash->height)) {
return;
}
pRgnData = (RGNDATA *) SAFE_SIZE_STRUCT_ALLOC(malloc, sizeof(RGNDATAHEADER),
sizeof(RECT), (splash->width / 2 + 1) * splash->height);
if (!pRgnData) {
return;
}
pRgnHdr = (RGNDATAHEADER *) pRgnData;
initRect(&maskRect, 0, 0, splash->width, splash->height, 1,
splash->width * splash->imageFormat.depthBytes,
splash->frames[imageIndex].bitmapBits, &splash->imageFormat);
pRgnHdr->dwSize = sizeof(RGNDATAHEADER);
pRgnHdr->iType = RDH_RECTANGLES;
pRgnHdr->nRgnSize = 0;
pRgnHdr->rcBound.top = 0;
pRgnHdr->rcBound.left = 0;
pRgnHdr->rcBound.bottom = splash->height;
pRgnHdr->rcBound.right = splash->width;
pRgnHdr->nCount = BitmapToYXBandedRectangles(&maskRect,
(RECT *) (((BYTE *) pRgnData) + sizeof(RGNDATAHEADER)));
splash->frames[imageIndex].hRgn = ExtCreateRegion(NULL,
sizeof(RGNDATAHEADER) + sizeof(RECT) * pRgnHdr->nCount, pRgnData);
free(pRgnData);
}
void
SplashInitFrameShape(Splash * splash, int imageIndex) {
ImageRect maskRect;
XRectangle *rects;
SplashImage *frame = splash->frames + imageIndex;
frame->rects = NULL;
frame->numRects = 0;
if (!splash->maskRequired)
return;
if (!shapeSupported)
return;
initRect(&maskRect, 0, 0, splash->width, splash->height, 1,
splash->width * splash->imageFormat.depthBytes,
splash->frames[imageIndex].bitmapBits, &splash->imageFormat);
rects =
malloc(sizeof(XRectangle) * (splash->width / 2 + 1) * splash->height);
frame->numRects = BitmapToYXBandedRectangles(&maskRect, rects);
frame->rects = malloc(frame->numRects * sizeof(XRectangle));
memcpy(frame->rects, rects, frame->numRects * sizeof(XRectangle));
free(rects);
}