bool TexturedLayerMLGPU::OnPrepareToRender(FrameBuilder* aBuilder) {
if (!mHost) {
return false;
}
LayerManagerMLGPU* lm = GetLayerManager()->AsLayerManagerMLGPU();
ImageHost::RenderInfo info;
if (!mHost->PrepareToRender(lm->GetTextureSourceProvider(), &info)) {
return false;
}
RefPtr<TextureSource> source = mHost->AcquireTextureSource(info);
if (!source) {
return false;
}
if (source->AsBigImageIterator()) {
mBigImageTexture = source;
mTexture = nullptr;
} else {
mTexture = source;
}
mPictureRect = IntRect(0, 0, info.img->mPictureRect.Width(),
info.img->mPictureRect.Height());
mHost->FinishRendering(info);
return true;
}
RefPtr<TextureSource>
TexturedLayerMLGPU::BindAndGetTexture()
{
if (!mHost) {
return nullptr;
}
LayerManagerMLGPU* lm = GetLayerManager()->AsLayerManagerMLGPU();
// Note: we don't call FinishRendering since mask layers do not need
// composite notifications or bias updates. (This function should
// not be called for non-mask-layers).
ImageHost::RenderInfo info;
if (!mHost->PrepareToRender(lm->GetTextureSourceProvider(), &info)) {
return nullptr;
}
RefPtr<TextureSource> source = mHost->AcquireTextureSource(info);
if (!source) {
return nullptr;
}
mTexture = source;
return source;
}
void
LayerMLGPU::SetLayerManager(HostLayerManager* aManager)
{
LayerManagerMLGPU* manager = aManager->AsLayerManagerMLGPU();
MOZ_RELEASE_ASSERT(manager);
HostLayer::SetLayerManager(aManager);
GetLayer()->SetManager(manager, this);
if (CompositableHost* host = GetCompositableHost()) {
host->SetTextureSourceProvider(manager->GetTextureSourceProvider());
}
OnLayerManagerChange(manager);
}