TemporaryRef<SourceSurface>
DrawTargetSkia::OptimizeSourceSurface(SourceSurface *aSurface) const
{
if (aSurface->GetType() == SurfaceType::SKIA) {
return aSurface;
}
if (!UsingSkiaGPU()) {
// If we're not using skia-gl then drawing doesn't require any
// uploading, so any data surface is fine. Call GetDataSurface
// to trigger any required readback so that it only happens
// once.
return aSurface->GetDataSurface();
}
// If we are using skia-gl then we want to copy into a surface that
// will cache the uploaded gl texture.
RefPtr<DataSourceSurface> dataSurf = aSurface->GetDataSurface();
DataSourceSurface::MappedSurface map;
if (!dataSurf->Map(DataSourceSurface::READ, &map)) {
return nullptr;
}
RefPtr<SourceSurface> result = CreateSourceSurfaceFromData(map.mData,
dataSurf->GetSize(),
map.mStride,
dataSurf->GetFormat());
dataSurf->Unmap();
return result.forget();
}
TemporaryRef<SourceSurface>
DrawTargetSkia::OptimizeSourceSurface(SourceSurface *aSurface) const
{
if (aSurface->GetType() == SurfaceType::SKIA) {
return aSurface;
}
if (aSurface->GetType() != SurfaceType::DATA) {
return nullptr;
}
RefPtr<DataSourceSurface> data = aSurface->GetDataSurface();
RefPtr<SourceSurface> surface = CreateSourceSurfaceFromData(data->GetData(),
data->GetSize(),
data->Stride(),
data->GetFormat());
return data.forget();
}
