void
ShadowCanvasLayerOGL::Swap(const CanvasSurface& aNewFront,
bool needYFlip,
CanvasSurface* aNewBack)
{
if (mDestroyed) {
*aNewBack = aNewFront;
return;
}
if (nsRefPtr<TextureImage> texImage =
ShadowLayerManager::OpenDescriptorForDirectTexturing(
gl(), aNewFront.get_SurfaceDescriptor(), LOCAL_GL_CLAMP_TO_EDGE)) {
if (mTexImage &&
(mTexImage->GetSize() != texImage->GetSize() ||
mTexImage->GetContentType() != texImage->GetContentType())) {
mTexImage = nullptr;
DestroyFrontBuffer();
}
mTexImage = texImage;
*aNewBack = IsSurfaceDescriptorValid(mFrontBufferDescriptor) ?
CanvasSurface(mFrontBufferDescriptor) : CanvasSurface(null_t());
mFrontBufferDescriptor = aNewFront;
mNeedsYFlip = needYFlip;
} else if (IsValidSharedTexDescriptor(aNewFront)) {
MakeTextureIfNeeded(gl(), mTexture);
if (!IsValidSharedTexDescriptor(mFrontBufferDescriptor)) {
mFrontBufferDescriptor = SharedTextureDescriptor(GLContext::SameProcess,
0,
nsIntSize(0, 0),
false);
}
*aNewBack = mFrontBufferDescriptor;
mFrontBufferDescriptor = aNewFront;
mNeedsYFlip = needYFlip;
} else {
AutoOpenSurface autoSurf(OPEN_READ_ONLY, aNewFront);
gfxIntSize sz = autoSurf.Size();
if (!mTexImage || mTexImage->GetSize() != sz ||
mTexImage->GetContentType() != autoSurf.ContentType()) {
Init(aNewFront, needYFlip);
}
nsIntRegion updateRegion(nsIntRect(0, 0, sz.width, sz.height));
mTexImage->DirectUpdate(autoSurf.Get(), updateRegion);
*aNewBack = aNewFront;
}
}
void
ShadowCanvasLayerD3D9::Swap(const CanvasSurface& aNewFront,
bool needYFlip,
CanvasSurface* aNewBack)
{
NS_ASSERTION(aNewFront.type() == CanvasSurface::TSurfaceDescriptor,
"ShadowCanvasLayerD3D9::Swap expected CanvasSurface surface");
AutoOpenSurface surf(OPEN_READ_ONLY, aNewFront);
if (!mBuffer) {
Init(needYFlip);
}
mBuffer->Upload(surf.Get(), GetVisibleRegion().GetBounds());
*aNewBack = aNewFront;
}
void
ShadowCanvasLayerD3D9::Swap(const CanvasSurface& aNewFront,
bool needYFlip,
CanvasSurface* aNewBack)
{
NS_ASSERTION(aNewFront.type() == CanvasSurface::TSurfaceDescriptor,
"ShadowCanvasLayerD3D9::Swap expected CanvasSurface surface");
nsRefPtr<gfxASurface> surf =
ShadowLayerForwarder::OpenDescriptor(aNewFront);
if (!mBuffer) {
Init(needYFlip);
}
mBuffer->Upload(surf, GetVisibleRegion().GetBounds());
*aNewBack = aNewFront;
}
