Index: src/codec/SkCodecImageGenerator.cpp |
diff --git a/src/codec/SkCodecImageGenerator.cpp b/src/codec/SkCodecImageGenerator.cpp |
index 2fef381ec1ffa332f5d62c8eb30d6b7eebcbe909..feec96f9ca39f452f5b14abed31916abb5b076a7 100644 |
--- a/src/codec/SkCodecImageGenerator.cpp |
+++ b/src/codec/SkCodecImageGenerator.cpp |
@@ -16,8 +16,16 @@ SkImageGenerator* SkCodecImageGenerator::NewFromEncodedCodec(SkData* data) { |
return new SkCodecImageGenerator(codec, data); |
} |
+static SkImageInfo make_premul(const SkImageInfo& info) { |
+ if (kUnpremul_SkAlphaType == info.alphaType()) { |
+ return info.makeAlphaType(kPremul_SkAlphaType); |
+ } |
+ |
+ return info; |
+} |
+ |
SkCodecImageGenerator::SkCodecImageGenerator(SkCodec* codec, SkData* data) |
- : INHERITED(codec->getInfo()) |
+ : INHERITED(make_premul(codec->getInfo())) |
, fCodec(codec) |
, fData(SkRef(data)) |
{} |
@@ -42,5 +50,37 @@ bool SkCodecImageGenerator::onGetPixels(const SkImageInfo& info, void* pixels, s |
bool SkCodecImageGenerator::onGetYUV8Planes(SkISize sizes[3], void* planes[3], size_t rowBytes[3], |
SkYUVColorSpace* colorSpace) { |
- return false; |
+ // TODO (msarett): Change the YUV API in ImageGenerator to match SkCodec. |
+ // This function is currently a hack to match the implementation |
msarett
2016/01/15 19:22:03
This hack is unbelievably ugly.
Maybe this CL sho
scroggo
2016/01/19 18:37:48
I would leave changing the YUV API to its own CL,
|
+ // in SkCodec with the old API. |
+ |
+ // If planes is NULL, we just need to return the size. |
+ if (nullptr == planes) { |
+ SkCodec::YUVPlanesWidthBytes widthBytes; |
+ bool result = fCodec->queryYUV8((SkCodec::YUVPlanesSizes*) sizes, &widthBytes, colorSpace); |
+ if (result) { |
+ // Save the true widths |
+ fYWidth = sizes[0].fWidth; |
+ fUWidth = sizes[1].fWidth; |
+ fVWidth = sizes[2].fWidth; |
+ |
+ // Adjust the widths so the client allocates enough memory |
+ sizes[0].fWidth = widthBytes.YWidthBytes; |
+ sizes[1].fWidth = widthBytes.UWidthBytes; |
+ sizes[2].fWidth = widthBytes.VWidthBytes; |
+ } |
+ return result; |
+ } |
+ |
+ // Restore the true widths |
scroggo
2016/01/19 18:37:48
Just to make sure I follow - the old API *requires
msarett
2016/01/19 22:35:27
I can't say that it's *required*.
That is how it'
|
+ sizes[0].fWidth = fYWidth; |
+ sizes[1].fWidth = fUWidth; |
+ sizes[2].fWidth = fVWidth; |
+ bool result = fCodec->getYUV8Planes((const SkCodec::YUVPlanesSizes*)sizes, planes, |
+ (const SkCodec::YUVPlanesWidthBytes*) rowBytes); |
+ if (result && colorSpace) { |
+ *colorSpace = kJPEG_SkYUVColorSpace; |
+ } |
+ |
+ return result; |
} |