/* static */ already_AddRefed<Decoder>
DecoderFactory::CreateDecoder(DecoderType aType,
RasterImage* aImage,
SourceBuffer* aSourceBuffer,
const Maybe<IntSize>& aTargetSize,
uint32_t aFlags,
bool aIsRedecode,
bool aImageIsTransient,
bool aImageIsLocked)
{
if (aType == DecoderType::UNKNOWN) {
return nullptr;
}
nsRefPtr<Decoder> decoder = GetDecoder(aType, aImage, aIsRedecode);
MOZ_ASSERT(decoder, "Should have a decoder now");
// Initialize the decoder.
decoder->SetMetadataDecode(false);
decoder->SetIterator(aSourceBuffer->Iterator());
decoder->SetFlags(aFlags);
decoder->SetSendPartialInvalidations(!aIsRedecode);
decoder->SetImageIsTransient(aImageIsTransient);
if (aImageIsLocked) {
decoder->SetImageIsLocked();
}
// Set a target size for downscale-during-decode if applicable.
if (aTargetSize) {
DebugOnly<nsresult> rv = decoder->SetTargetSize(*aTargetSize);
MOZ_ASSERT(nsresult(rv) != NS_ERROR_NOT_AVAILABLE,
"We're downscale-during-decode but decoder doesn't support it?");
MOZ_ASSERT(NS_SUCCEEDED(rv), "Bad downscale-during-decode target size?");
}
decoder->Init();
if (NS_FAILED(decoder->GetDecoderError())) {
return nullptr;
}
return decoder.forget();
}
/* static */ already_AddRefed<Decoder>
DecoderFactory::CreateDecoder(DecoderType aType,
RasterImage* aImage,
SourceBuffer* aSourceBuffer,
const Maybe<IntSize>& aTargetSize,
DecoderFlags aDecoderFlags,
SurfaceFlags aSurfaceFlags,
int aSampleSize,
const IntSize& aResolution)
{
if (aType == DecoderType::UNKNOWN) {
return nullptr;
}
nsRefPtr<Decoder> decoder =
GetDecoder(aType, aImage, bool(aDecoderFlags & DecoderFlags::IS_REDECODE));
MOZ_ASSERT(decoder, "Should have a decoder now");
// Initialize the decoder.
decoder->SetMetadataDecode(false);
decoder->SetIterator(aSourceBuffer->Iterator());
decoder->SetDecoderFlags(aDecoderFlags | DecoderFlags::FIRST_FRAME_ONLY);
decoder->SetSurfaceFlags(aSurfaceFlags);
decoder->SetSampleSize(aSampleSize);
decoder->SetResolution(aResolution);
// Set a target size for downscale-during-decode if applicable.
if (aTargetSize) {
DebugOnly<nsresult> rv = decoder->SetTargetSize(*aTargetSize);
MOZ_ASSERT(nsresult(rv) != NS_ERROR_NOT_AVAILABLE,
"We're downscale-during-decode but decoder doesn't support it?");
MOZ_ASSERT(NS_SUCCEEDED(rv), "Bad downscale-during-decode target size?");
}
decoder->Init();
if (NS_FAILED(decoder->GetDecoderError())) {
return nullptr;
}
return decoder.forget();
}
