void imgFrame::Draw(gfxContext *aContext, GraphicsFilter aFilter,
const gfxMatrix &aUserSpaceToImageSpace, const gfxRect& aFill,
const nsIntMargin &aPadding, const nsIntRect &aSubimage,
uint32_t aImageFlags)
{
PROFILER_LABEL("image", "imgFrame::Draw");
NS_ASSERTION(!aFill.IsEmpty(), "zero dest size --- fix caller");
NS_ASSERTION(!aSubimage.IsEmpty(), "zero source size --- fix caller");
NS_ASSERTION(!mPalettedImageData, "Directly drawing a paletted image!");
bool doPadding = aPadding != nsIntMargin(0,0,0,0);
bool doPartialDecode = !ImageComplete();
if (mSinglePixel && !doPadding && !doPartialDecode) {
DoSingleColorFastPath(aContext, mSinglePixelColor, aFill);
return;
}
gfxMatrix userSpaceToImageSpace = aUserSpaceToImageSpace;
gfxRect sourceRect = userSpaceToImageSpace.TransformBounds(aFill);
gfxRect imageRect(0, 0, mSize.width + aPadding.LeftRight(),
mSize.height + aPadding.TopBottom());
gfxRect subimage(aSubimage.x, aSubimage.y, aSubimage.width, aSubimage.height);
gfxRect fill = aFill;
NS_ASSERTION(!sourceRect.Intersect(subimage).IsEmpty(),
"We must be allowed to sample *some* source pixels!");
bool doTile = !imageRect.Contains(sourceRect) &&
!(aImageFlags & imgIContainer::FLAG_CLAMP);
SurfaceWithFormat surfaceResult =
SurfaceForDrawing(doPadding, doPartialDecode, doTile, aPadding,
userSpaceToImageSpace, fill, subimage, sourceRect,
imageRect);
if (surfaceResult.IsValid()) {
gfxUtils::DrawPixelSnapped(aContext, surfaceResult.mDrawable,
userSpaceToImageSpace,
subimage, sourceRect, imageRect, fill,
surfaceResult.mFormat, aFilter, aImageFlags);
}
}
bool imgFrame::Draw(gfxContext *aContext, GraphicsFilter aFilter,
const gfxMatrix &aUserSpaceToImageSpace, const gfxRect& aFill,
const nsIntMargin &aPadding, const nsIntRect &aSubimage,
uint32_t aImageFlags)
{
PROFILER_LABEL("imgFrame", "Draw",
js::ProfileEntry::Category::GRAPHICS);
NS_ASSERTION(!aFill.IsEmpty(), "zero dest size --- fix caller");
NS_ASSERTION(!aSubimage.IsEmpty(), "zero source size --- fix caller");
NS_ASSERTION(!mPalettedImageData, "Directly drawing a paletted image!");
bool doPadding = aPadding != nsIntMargin(0,0,0,0);
bool doPartialDecode = !ImageComplete();
if (mSinglePixel && !doPadding && !doPartialDecode) {
DoSingleColorFastPath(aContext, mSinglePixelColor, aFill);
return true;
}
gfxMatrix userSpaceToImageSpace = aUserSpaceToImageSpace;
gfxRect sourceRect = userSpaceToImageSpace.TransformBounds(aFill);
gfxRect imageRect(0, 0, mSize.width + aPadding.LeftRight(),
mSize.height + aPadding.TopBottom());
gfxRect subimage(aSubimage.x, aSubimage.y, aSubimage.width, aSubimage.height);
gfxRect fill = aFill;
NS_ASSERTION(!sourceRect.Intersect(subimage).IsEmpty(),
"We must be allowed to sample *some* source pixels!");
nsRefPtr<gfxASurface> surf = CachedThebesSurface();
VolatileBufferPtr<unsigned char> ref(mVBuf);
if (!mSinglePixel && !surf) {
if (ref.WasBufferPurged()) {
return false;
}
surf = mDrawSurface;
if (!surf) {
long stride = gfxImageSurface::ComputeStride(mSize, mFormat);
nsRefPtr<gfxImageSurface> imgSurf =
new gfxImageSurface(ref, mSize, stride, mFormat);
#if defined(XP_MACOSX)
surf = mDrawSurface = new gfxQuartzImageSurface(imgSurf);
#else
surf = mDrawSurface = imgSurf;
#endif
}
if (!surf || surf->CairoStatus()) {
mDrawSurface = nullptr;
return true;
}
}
bool doTile = !imageRect.Contains(sourceRect) &&
!(aImageFlags & imgIContainer::FLAG_CLAMP);
SurfaceWithFormat surfaceResult =
SurfaceForDrawing(doPadding, doPartialDecode, doTile, aPadding,
userSpaceToImageSpace, fill, subimage, sourceRect,
imageRect, surf);
if (surfaceResult.IsValid()) {
gfxUtils::DrawPixelSnapped(aContext, surfaceResult.mDrawable,
userSpaceToImageSpace,
subimage, sourceRect, imageRect, fill,
surfaceResult.mFormat, aFilter, aImageFlags);
}
return true;
}
