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-rw-r--r--image/decoders/nsBMPDecoder.cpp3
-rw-r--r--image/decoders/nsGIFDecoder2.cpp31
-rw-r--r--image/decoders/nsIconDecoder.cpp3
-rw-r--r--image/decoders/nsJPEGDecoder.cpp4
-rw-r--r--image/decoders/nsPNGDecoder.cpp41
-rw-r--r--image/decoders/nsWebPDecoder.cpp629
-rw-r--r--image/decoders/nsWebPDecoder.h56
7 files changed, 462 insertions, 305 deletions
diff --git a/image/decoders/nsBMPDecoder.cpp b/image/decoders/nsBMPDecoder.cpp
index 1f0449e4e..42bb3486a 100644
--- a/image/decoders/nsBMPDecoder.cpp
+++ b/image/decoders/nsBMPDecoder.cpp
@@ -674,8 +674,7 @@ nsBMPDecoder::ReadBitfields(const char* aData, size_t aLength)
}
MOZ_ASSERT(!mImageData, "Already have a buffer allocated?");
- nsresult rv = AllocateFrame(/* aFrameNum = */ 0, OutputSize(),
- FullOutputFrame(),
+ nsresult rv = AllocateFrame(OutputSize(), FullOutputFrame(),
mMayHaveTransparency ? SurfaceFormat::B8G8R8A8
: SurfaceFormat::B8G8R8X8);
if (NS_FAILED(rv)) {
diff --git a/image/decoders/nsGIFDecoder2.cpp b/image/decoders/nsGIFDecoder2.cpp
index 7955438e4..6f2be1fa1 100644
--- a/image/decoders/nsGIFDecoder2.cpp
+++ b/image/decoders/nsGIFDecoder2.cpp
@@ -187,6 +187,14 @@ nsGIFDecoder2::BeginImageFrame(const IntRect& aFrameRect,
// Make sure there's no animation if we're downscaling.
MOZ_ASSERT_IF(Size() != OutputSize(), !GetImageMetadata().HasAnimation());
+ AnimationParams animParams {
+ aFrameRect,
+ FrameTimeout::FromRawMilliseconds(mGIFStruct.delay_time),
+ uint32_t(mGIFStruct.images_decoded),
+ BlendMethod::OVER,
+ DisposalMethod(mGIFStruct.disposal_method)
+ };
+
SurfacePipeFlags pipeFlags = aIsInterlaced
? SurfacePipeFlags::DEINTERLACE
: SurfacePipeFlags();
@@ -198,17 +206,24 @@ nsGIFDecoder2::BeginImageFrame(const IntRect& aFrameRect,
// The first frame is always decoded into an RGB surface.
pipe =
- SurfacePipeFactory::CreateSurfacePipe(this, mGIFStruct.images_decoded,
- Size(), OutputSize(),
- aFrameRect, format, pipeFlags);
+ SurfacePipeFactory::CreateSurfacePipe(this, Size(), OutputSize(),
+ aFrameRect, format,
+ Some(animParams), pipeFlags);
} else {
// This is an animation frame (and not the first). To minimize the memory
// usage of animations, the image data is stored in paletted form.
+ //
+ // We should never use paletted surfaces with a draw target directly, so
+ // the only practical difference between B8G8R8A8 and B8G8R8X8 is the
+ // cleared pixel value if we get truncated. We want 0 in that case to
+ // ensure it is an acceptable value for the color map as was the case
+ // historically.
MOZ_ASSERT(Size() == OutputSize());
pipe =
- SurfacePipeFactory::CreatePalettedSurfacePipe(this, mGIFStruct.images_decoded,
- Size(), aFrameRect, format,
- aDepth, pipeFlags);
+ SurfacePipeFactory::CreatePalettedSurfacePipe(this, Size(), aFrameRect,
+ SurfaceFormat::B8G8R8A8,
+ aDepth, Some(animParams),
+ pipeFlags);
}
mCurrentFrameIndex = mGIFStruct.images_decoded;
@@ -249,9 +264,7 @@ nsGIFDecoder2::EndImageFrame()
mGIFStruct.images_decoded++;
// Tell the superclass we finished a frame
- PostFrameStop(opacity,
- DisposalMethod(mGIFStruct.disposal_method),
- FrameTimeout::FromRawMilliseconds(mGIFStruct.delay_time));
+ PostFrameStop(opacity);
// Reset the transparent pixel
if (mOldColor) {
diff --git a/image/decoders/nsIconDecoder.cpp b/image/decoders/nsIconDecoder.cpp
index 9ca63f5ad..b186874c6 100644
--- a/image/decoders/nsIconDecoder.cpp
+++ b/image/decoders/nsIconDecoder.cpp
@@ -70,8 +70,9 @@ nsIconDecoder::ReadHeader(const char* aData)
MOZ_ASSERT(!mImageData, "Already have a buffer allocated?");
Maybe<SurfacePipe> pipe =
- SurfacePipeFactory::CreateSurfacePipe(this, 0, Size(), OutputSize(),
+ SurfacePipeFactory::CreateSurfacePipe(this, Size(), OutputSize(),
FullFrame(), SurfaceFormat::B8G8R8A8,
+ /* aAnimParams */ Nothing(),
SurfacePipeFlags());
if (!pipe) {
return Transition::TerminateFailure();
diff --git a/image/decoders/nsJPEGDecoder.cpp b/image/decoders/nsJPEGDecoder.cpp
index e76ffcbaf..7dac18e27 100644
--- a/image/decoders/nsJPEGDecoder.cpp
+++ b/image/decoders/nsJPEGDecoder.cpp
@@ -388,8 +388,8 @@ nsJPEGDecoder::ReadJPEGData(const char* aData, size_t aLength)
jpeg_has_multiple_scans(&mInfo);
MOZ_ASSERT(!mImageData, "Already have a buffer allocated?");
- nsresult rv = AllocateFrame(/* aFrameNum = */ 0, OutputSize(),
- FullOutputFrame(), SurfaceFormat::B8G8R8X8);
+ nsresult rv = AllocateFrame(OutputSize(), FullOutputFrame(),
+ SurfaceFormat::B8G8R8X8);
if (NS_FAILED(rv)) {
mState = JPEG_ERROR;
MOZ_LOG(sJPEGDecoderAccountingLog, LogLevel::Debug,
diff --git a/image/decoders/nsPNGDecoder.cpp b/image/decoders/nsPNGDecoder.cpp
index 9596ae7d6..1f19c41bc 100644
--- a/image/decoders/nsPNGDecoder.cpp
+++ b/image/decoders/nsPNGDecoder.cpp
@@ -208,6 +208,25 @@ nsPNGDecoder::CreateFrame(const FrameInfo& aFrameInfo)
MOZ_ASSERT_IF(Size() != OutputSize(),
transparency != TransparencyType::eFrameRect);
+ Maybe<AnimationParams> animParams;
+#ifdef PNG_APNG_SUPPORTED
+ if (png_get_valid(mPNG, mInfo, PNG_INFO_acTL)) {
+ mAnimInfo = AnimFrameInfo(mPNG, mInfo);
+
+ if (mAnimInfo.mDispose == DisposalMethod::CLEAR) {
+ // We may have to display the background under this image during
+ // animation playback, so we regard it as transparent.
+ PostHasTransparency();
+ }
+
+ animParams.emplace(AnimationParams {
+ aFrameInfo.mFrameRect,
+ FrameTimeout::FromRawMilliseconds(mAnimInfo.mTimeout),
+ mNumFrames, mAnimInfo.mBlend, mAnimInfo.mDispose
+ });
+ }
+#endif
+
// If this image is interlaced, we can display better quality intermediate
// results to the user by post processing them with ADAM7InterpolatingFilter.
SurfacePipeFlags pipeFlags = aFrameInfo.mIsInterlaced
@@ -220,9 +239,9 @@ nsPNGDecoder::CreateFrame(const FrameInfo& aFrameInfo)
}
Maybe<SurfacePipe> pipe =
- SurfacePipeFactory::CreateSurfacePipe(this, mNumFrames, Size(),
- OutputSize(), aFrameInfo.mFrameRect,
- format, pipeFlags);
+ SurfacePipeFactory::CreateSurfacePipe(this, Size(), OutputSize(),
+ aFrameInfo.mFrameRect, format,
+ animParams, pipeFlags);
if (!pipe) {
mPipe = SurfacePipe();
@@ -239,18 +258,6 @@ nsPNGDecoder::CreateFrame(const FrameInfo& aFrameInfo)
"image frame with %dx%d pixels for decoder %p",
mFrameRect.width, mFrameRect.height, this));
-#ifdef PNG_APNG_SUPPORTED
- if (png_get_valid(mPNG, mInfo, PNG_INFO_acTL)) {
- mAnimInfo = AnimFrameInfo(mPNG, mInfo);
-
- if (mAnimInfo.mDispose == DisposalMethod::CLEAR) {
- // We may have to display the background under this image during
- // animation playback, so we regard it as transparent.
- PostHasTransparency();
- }
- }
-#endif
-
return NS_OK;
}
@@ -269,9 +276,7 @@ nsPNGDecoder::EndImageFrame()
opacity = Opacity::FULLY_OPAQUE;
}
- PostFrameStop(opacity, mAnimInfo.mDispose,
- FrameTimeout::FromRawMilliseconds(mAnimInfo.mTimeout),
- mAnimInfo.mBlend, Some(mFrameRect));
+ PostFrameStop(opacity);
}
nsresult
diff --git a/image/decoders/nsWebPDecoder.cpp b/image/decoders/nsWebPDecoder.cpp
index 6ed2c3e9c..4f3cc8b2a 100644
--- a/image/decoders/nsWebPDecoder.cpp
+++ b/image/decoders/nsWebPDecoder.cpp
@@ -19,10 +19,6 @@ static LazyLogModule sWebPLog("WebPDecoder");
nsWebPDecoder::nsWebPDecoder(RasterImage* aImage)
: Decoder(aImage)
- , mLexer(Transition::ToUnbuffered(State::FINISHED_WEBP_DATA,
- State::WEBP_DATA,
- SIZE_MAX),
- Transition::TerminateSuccess())
, mDecoder(nullptr)
, mBlend(BlendMethod::OVER)
, mDisposal(DisposalMethod::KEEP)
@@ -30,6 +26,13 @@ nsWebPDecoder::nsWebPDecoder(RasterImage* aImage)
, mFormat(SurfaceFormat::B8G8R8X8)
, mLastRow(0)
, mCurrentFrame(0)
+ , mData(nullptr)
+ , mLength(0)
+ , mIteratorComplete(false)
+ , mNeedDemuxer(true)
+ , mGotColorProfile(false)
+ , mInProfile(nullptr)
+ , mTransform(nullptr)
{
MOZ_LOG(sWebPLog, LogLevel::Debug,
("[this=%p] nsWebPDecoder::nsWebPDecoder", this));
@@ -39,27 +42,157 @@ nsWebPDecoder::~nsWebPDecoder()
{
MOZ_LOG(sWebPLog, LogLevel::Debug,
("[this=%p] nsWebPDecoder::~nsWebPDecoder", this));
- WebPIDelete(mDecoder);
+ if (mDecoder) {
+ WebPIDelete(mDecoder);
+ WebPFreeDecBuffer(&mBuffer);
+ }
+ if (mInProfile) {
+ // mTransform belongs to us only if mInProfile is non-null
+ if (mTransform) {
+ qcms_transform_release(mTransform);
+ }
+ qcms_profile_release(mInProfile);
+ }
+}
+
+LexerResult
+nsWebPDecoder::ReadData()
+{
+ MOZ_ASSERT(mData);
+ MOZ_ASSERT(mLength > 0);
+
+ WebPDemuxer* demuxer = nullptr;
+ bool complete = mIteratorComplete;
+
+ if (mNeedDemuxer) {
+ WebPDemuxState state;
+ WebPData fragment;
+ fragment.bytes = mData;
+ fragment.size = mLength;
+
+ demuxer = WebPDemuxPartial(&fragment, &state);
+ if (state == WEBP_DEMUX_PARSE_ERROR) {
+ MOZ_LOG(sWebPLog, LogLevel::Error,
+ ("[this=%p] nsWebPDecoder::ReadData -- demux parse error\n", this));
+ WebPDemuxDelete(demuxer);
+ return LexerResult(TerminalState::FAILURE);
+ }
+
+ if (state == WEBP_DEMUX_PARSING_HEADER) {
+ WebPDemuxDelete(demuxer);
+ return LexerResult(Yield::NEED_MORE_DATA);
+ }
+
+ if (!demuxer) {
+ MOZ_LOG(sWebPLog, LogLevel::Error,
+ ("[this=%p] nsWebPDecoder::ReadData -- no demuxer\n", this));
+ return LexerResult(TerminalState::FAILURE);
+ }
+
+ complete = complete || state == WEBP_DEMUX_DONE;
+ }
+
+ LexerResult rv(TerminalState::FAILURE);
+ if (!HasSize()) {
+ rv = ReadHeader(demuxer, complete);
+ } else {
+ rv = ReadPayload(demuxer, complete);
+ }
+
+ WebPDemuxDelete(demuxer);
+ return rv;
}
LexerResult
nsWebPDecoder::DoDecode(SourceBufferIterator& aIterator, IResumable* aOnResume)
{
+ while (true) {
+ SourceBufferIterator::State state = SourceBufferIterator::COMPLETE;
+ if (!mIteratorComplete) {
+ state = aIterator.AdvanceOrScheduleResume(SIZE_MAX, aOnResume);
+
+ // We need to remember since we can't advance a complete iterator.
+ mIteratorComplete = state == SourceBufferIterator::COMPLETE;
+ }
+
+ if (state == SourceBufferIterator::WAITING) {
+ return LexerResult(Yield::NEED_MORE_DATA);
+ }
+
+ LexerResult rv = UpdateBuffer(aIterator, state);
+ if (rv.is<Yield>() && rv.as<Yield>() == Yield::NEED_MORE_DATA) {
+ // We need to check the iterator to see if more is available before
+ // giving up unless we are already complete.
+ if (mIteratorComplete) {
+ MOZ_LOG(sWebPLog, LogLevel::Error,
+ ("[this=%p] nsWebPDecoder::DoDecode -- read all data, "
+ "but needs more\n", this));
+ return LexerResult(TerminalState::FAILURE);
+ }
+ continue;
+ }
+
+ return rv;
+ }
+}
+
+LexerResult
+nsWebPDecoder::UpdateBuffer(SourceBufferIterator& aIterator,
+ SourceBufferIterator::State aState)
+{
MOZ_ASSERT(!HasError(), "Shouldn't call DoDecode after error!");
- return mLexer.Lex(aIterator, aOnResume,
- [=](State aState, const char* aData, size_t aLength) {
- switch (aState) {
- case State::WEBP_DATA:
- if (!HasSize()) {
- return ReadHeader(aData, aLength);
- }
- return ReadPayload(aData, aLength);
- case State::FINISHED_WEBP_DATA:
- return FinishedData();
+ switch (aState) {
+ case SourceBufferIterator::READY:
+ if (!mData) {
+ // For as long as we hold onto an iterator, we know the data pointers
+ // to the chunks cannot change underneath us, so save the pointer to
+ // the first block.
+ MOZ_ASSERT(mLength == 0);
+ mData = reinterpret_cast<const uint8_t*>(aIterator.Data());
+ }
+ mLength += aIterator.Length();
+ return ReadData();
+ case SourceBufferIterator::COMPLETE:
+ return ReadData();
+ default:
+ MOZ_LOG(sWebPLog, LogLevel::Error,
+ ("[this=%p] nsWebPDecoder::DoDecode -- bad state\n", this));
+ return LexerResult(TerminalState::FAILURE);
+ }
+
+ // We need to buffer. If we have no data buffered, we need to get everything
+ // from the first chunk of the source buffer before appending the new data.
+ if (mBufferedData.empty()) {
+ MOZ_ASSERT(mData);
+ MOZ_ASSERT(mLength > 0);
+
+ if (!mBufferedData.append(mData, mLength)) {
+ MOZ_LOG(sWebPLog, LogLevel::Error,
+ ("[this=%p] nsWebPDecoder::DoDecode -- oom, initialize %zu\n",
+ this, mLength));
+ return LexerResult(TerminalState::FAILURE);
}
- MOZ_CRASH("Unknown State");
- });
+
+ MOZ_LOG(sWebPLog, LogLevel::Debug,
+ ("[this=%p] nsWebPDecoder::DoDecode -- buffered %zu bytes\n",
+ this, mLength));
+ }
+
+ // Append the incremental data from the iterator.
+ if (!mBufferedData.append(aIterator.Data(), aIterator.Length())) {
+ MOZ_LOG(sWebPLog, LogLevel::Error,
+ ("[this=%p] nsWebPDecoder::DoDecode -- oom, append %zu on %zu\n",
+ this, aIterator.Length(), mBufferedData.length()));
+ return LexerResult(TerminalState::FAILURE);
+ }
+
+ MOZ_LOG(sWebPLog, LogLevel::Debug,
+ ("[this=%p] nsWebPDecoder::DoDecode -- buffered %zu -> %zu bytes\n",
+ this, aIterator.Length(), mBufferedData.length()));
+ mData = mBufferedData.begin();
+ mLength = mBufferedData.length();
+ return ReadData();
}
nsresult
@@ -69,13 +202,22 @@ nsWebPDecoder::CreateFrame(const nsIntRect& aFrameRect)
MOZ_ASSERT(!mDecoder);
MOZ_LOG(sWebPLog, LogLevel::Debug,
- ("[this=%p] nsWebPDecoder::CreateFrame -- frame %u, %d x %d\n",
- this, mCurrentFrame, aFrameRect.width, aFrameRect.height));
+ ("[this=%p] nsWebPDecoder::CreateFrame -- frame %u, (%d, %d) %d x %d\n",
+ this, mCurrentFrame, aFrameRect.x, aFrameRect.y,
+ aFrameRect.width, aFrameRect.height));
+
+ if (aFrameRect.width <= 0 || aFrameRect.height <= 0) {
+ MOZ_LOG(sWebPLog, LogLevel::Error,
+ ("[this=%p] nsWebPDecoder::CreateFrame -- bad frame rect\n",
+ this));
+ return NS_ERROR_FAILURE;
+ }
// If this is our first frame in an animation and it doesn't cover the
// full frame, then we are transparent even if there is no alpha
if (mCurrentFrame == 0 && !aFrameRect.IsEqualEdges(FullFrame())) {
MOZ_ASSERT(HasAnimation());
+ mFormat = SurfaceFormat::B8G8R8A8;
PostHasTransparency();
}
@@ -90,16 +232,22 @@ nsWebPDecoder::CreateFrame(const nsIntRect& aFrameRect)
return NS_ERROR_FAILURE;
}
+ SurfacePipeFlags pipeFlags = SurfacePipeFlags();
+
+ AnimationParams animParams {
+ aFrameRect, mTimeout, mCurrentFrame, mBlend, mDisposal
+ };
+
Maybe<SurfacePipe> pipe = SurfacePipeFactory::CreateSurfacePipe(this,
- mCurrentFrame, Size(), OutputSize(), aFrameRect,
- mFormat, SurfacePipeFlags());
+ Size(), OutputSize(), aFrameRect, mFormat, Some(animParams), pipeFlags);
if (!pipe) {
MOZ_LOG(sWebPLog, LogLevel::Error,
("[this=%p] nsWebPDecoder::CreateFrame -- no pipe\n", this));
return NS_ERROR_FAILURE;
}
- mPipe = Move(*pipe);
+ mFrameRect = aFrameRect;
+ mPipe = std::move(*pipe);
return NS_OK;
}
@@ -118,154 +266,149 @@ nsWebPDecoder::EndFrame()
this, mCurrentFrame, (int)opacity, (int)mDisposal,
mTimeout.AsEncodedValueDeprecated(), (int)mBlend));
- PostFrameStop(opacity, mDisposal, mTimeout, mBlend);
- WebPFreeDecBuffer(&mBuffer);
+ PostFrameStop(opacity);
WebPIDelete(mDecoder);
+ WebPFreeDecBuffer(&mBuffer);
mDecoder = nullptr;
mLastRow = 0;
++mCurrentFrame;
}
-nsresult
-nsWebPDecoder::GetDataBuffer(const uint8_t*& aData, size_t& aLength)
+void
+nsWebPDecoder::ApplyColorProfile(const char* aProfile, size_t aLength)
{
- if (!mData.empty() && mData.begin() != aData) {
- if (!mData.append(aData, aLength)) {
- MOZ_LOG(sWebPLog, LogLevel::Error,
- ("[this=%p] nsWebPDecoder::GetDataBuffer -- oom, append %zu on %zu\n",
- this, aLength, mData.length()));
- return NS_ERROR_OUT_OF_MEMORY;
- }
- aData = mData.begin();
- aLength = mData.length();
+ MOZ_ASSERT(!mGotColorProfile);
+ mGotColorProfile = true;
+
+ if (GetSurfaceFlags() & SurfaceFlags::NO_COLORSPACE_CONVERSION) {
+ return;
}
- return NS_OK;
-}
-nsresult
-nsWebPDecoder::SaveDataBuffer(const uint8_t* aData, size_t aLength)
-{
- if (mData.empty() && !mData.append(aData, aLength)) {
+ auto mode = gfxPlatform::GetCMSMode();
+ if (mode == eCMSMode_Off || (mode == eCMSMode_TaggedOnly && !aProfile)) {
+ return;
+ }
+
+ if (!aProfile || !gfxPlatform::GetCMSOutputProfile()) {
+ MOZ_LOG(sWebPLog, LogLevel::Debug,
+ ("[this=%p] nsWebPDecoder::ApplyColorProfile -- not tagged or no output "
+ "profile , use sRGB transform\n", this));
+ mTransform = gfxPlatform::GetCMSRGBATransform();
+ return;
+ }
+
+ mInProfile = qcms_profile_from_memory(aProfile, aLength);
+ if (!mInProfile) {
MOZ_LOG(sWebPLog, LogLevel::Error,
- ("[this=%p] nsWebPDecoder::SaveDataBuffer -- oom, append %zu on %zu\n",
- this, aLength, mData.length()));
- return NS_ERROR_OUT_OF_MEMORY;
+ ("[this=%p] nsWebPDecoder::ApplyColorProfile -- bad color profile\n",
+ this));
+ return;
}
- return NS_OK;
+
+ // Calculate rendering intent.
+ int intent = gfxPlatform::GetRenderingIntent();
+ if (intent == -1) {
+ intent = qcms_profile_get_rendering_intent(mInProfile);
+ }
+
+ // Create the color management transform.
+ mTransform = qcms_transform_create(mInProfile,
+ QCMS_DATA_RGBA_8,
+ gfxPlatform::GetCMSOutputProfile(),
+ QCMS_DATA_RGBA_8,
+ (qcms_intent)intent);
+ MOZ_LOG(sWebPLog, LogLevel::Debug,
+ ("[this=%p] nsWebPDecoder::ApplyColorProfile -- use tagged "
+ "transform\n", this));
}
-LexerTransition<nsWebPDecoder::State>
-nsWebPDecoder::ReadHeader(const char* aData, size_t aLength)
+LexerResult
+nsWebPDecoder::ReadHeader(WebPDemuxer* aDemuxer,
+ bool aIsComplete)
{
+ MOZ_ASSERT(aDemuxer);
+
MOZ_LOG(sWebPLog, LogLevel::Debug,
- ("[this=%p] nsWebPDecoder::ReadHeader -- %zu bytes\n", this, aLength));
-
- // XXX(aosmond): In an ideal world, we could request the lexer to do this
- // buffering for us (and in turn the underlying SourceBuffer). That way we
- // could avoid extra copies during the decode and just do
- // SourceBuffer::Compact on each iteration. For a typical WebP image we
- // can hope that we will get the full header in the first packet, but
- // for animated images we will end up buffering the whole stream if it
- // not already fully received and contiguous.
- auto data = (const uint8_t*)aData;
- size_t length = aLength;
- if (NS_FAILED(GetDataBuffer(data, length))) {
- return Transition::TerminateFailure();
- }
+ ("[this=%p] nsWebPDecoder::ReadHeader -- %zu bytes\n", this, mLength));
- WebPBitstreamFeatures features;
- VP8StatusCode status = WebPGetFeatures(data, length, &features);
- switch (status) {
- case VP8_STATUS_OK:
- break;
- case VP8_STATUS_NOT_ENOUGH_DATA:
- if (NS_FAILED(SaveDataBuffer(data, length))) {
- return Transition::TerminateFailure();
+ uint32_t flags = WebPDemuxGetI(aDemuxer, WEBP_FF_FORMAT_FLAGS);
+
+ if (!IsMetadataDecode() && !mGotColorProfile) {
+ if (flags & WebPFeatureFlags::ICCP_FLAG) {
+ WebPChunkIterator iter;
+ if (!WebPDemuxGetChunk(aDemuxer, "ICCP", 1, &iter)) {
+ return aIsComplete ? LexerResult(TerminalState::FAILURE)
+ : LexerResult(Yield::NEED_MORE_DATA);
}
- return Transition::ContinueUnbuffered(State::WEBP_DATA);
- default:
- MOZ_LOG(sWebPLog, LogLevel::Error,
- ("[this=%p] nsWebPDecoder::ReadHeader -- parse error %d\n",
- this, status));
- return Transition::TerminateFailure();
+
+ ApplyColorProfile(reinterpret_cast<const char*>(iter.chunk.bytes),
+ iter.chunk.size);
+ WebPDemuxReleaseChunkIterator(&iter);
+ } else {
+ ApplyColorProfile(nullptr, 0);
+ }
}
- if (features.has_animation) {
+ if (flags & WebPFeatureFlags::ANIMATION_FLAG) {
// A metadata decode expects to get the correct first frame timeout which
// sadly is not provided by the normal WebP header parsing.
- WebPDemuxState state;
- WebPData fragment;
- fragment.bytes = data;
- fragment.size = length;
- WebPDemuxer* demuxer = WebPDemuxPartial(&fragment, &state);
- if (!demuxer || state == WEBP_DEMUX_PARSE_ERROR) {
- MOZ_LOG(sWebPLog, LogLevel::Error,
- ("[this=%p] nsWebPDecoder::ReadHeader -- demux parse error\n", this));
- WebPDemuxDelete(demuxer);
- return Transition::TerminateFailure();
- }
-
WebPIterator iter;
- if (!WebPDemuxGetFrame(demuxer, 1, &iter)) {
- WebPDemuxDelete(demuxer);
- if (state == WEBP_DEMUX_DONE) {
- MOZ_LOG(sWebPLog, LogLevel::Error,
- ("[this=%p] nsWebPDecoder::ReadHeader -- demux parse error\n",
- this));
- return Transition::TerminateFailure();
- }
- if (NS_FAILED(SaveDataBuffer(data, length))) {
- return Transition::TerminateFailure();
- }
- return Transition::ContinueUnbuffered(State::WEBP_DATA);
+ if (!WebPDemuxGetFrame(aDemuxer, 1, &iter)) {
+ return aIsComplete ? LexerResult(TerminalState::FAILURE)
+ : LexerResult(Yield::NEED_MORE_DATA);
}
PostIsAnimated(FrameTimeout::FromRawMilliseconds(iter.duration));
WebPDemuxReleaseIterator(&iter);
- WebPDemuxDelete(demuxer);
+ } else {
+ // Single frames don't need a demuxer to be created.
+ mNeedDemuxer = false;
}
- MOZ_LOG(sWebPLog, LogLevel::Debug,
- ("[this=%p] nsWebPDecoder::ReadHeader -- %d x %d, alpha %d, "
- "animation %d, format %d, metadata decode %d, first frame decode %d\n",
- this, features.width, features.height, features.has_alpha,
- features.has_animation, features.format, IsMetadataDecode(),
- IsFirstFrameDecode()));
-
- PostSize(features.width, features.height);
- if (features.has_alpha) {
+ uint32_t width = WebPDemuxGetI(aDemuxer, WEBP_FF_CANVAS_WIDTH);
+ uint32_t height = WebPDemuxGetI(aDemuxer, WEBP_FF_CANVAS_HEIGHT);
+ if (width > INT32_MAX || height > INT32_MAX) {
+ return LexerResult(TerminalState::FAILURE);
+ }
+
+ PostSize(width, height);
+
+ bool alpha = flags & WebPFeatureFlags::ALPHA_FLAG;
+ if (alpha) {
mFormat = SurfaceFormat::B8G8R8A8;
PostHasTransparency();
}
+ MOZ_LOG(sWebPLog, LogLevel::Debug,
+ ("[this=%p] nsWebPDecoder::ReadHeader -- %u x %u, alpha %d, "
+ "animation %d, metadata decode %d, first frame decode %d\n",
+ this, width, height, alpha, HasAnimation(),
+ IsMetadataDecode(), IsFirstFrameDecode()));
+
if (IsMetadataDecode()) {
- return Transition::TerminateSuccess();
+ return LexerResult(TerminalState::SUCCESS);
}
- auto transition = ReadPayload((const char*)data, length);
- if (!features.has_animation) {
- mData.clearAndFree();
- }
- return transition;
+ return ReadPayload(aDemuxer, aIsComplete);
}
-LexerTransition<nsWebPDecoder::State>
-nsWebPDecoder::ReadPayload(const char* aData, size_t aLength)
+LexerResult
+nsWebPDecoder::ReadPayload(WebPDemuxer* aDemuxer,
+ bool aIsComplete)
{
- auto data = (const uint8_t*)aData;
if (!HasAnimation()) {
- auto rv = ReadSingle(data, aLength, true, FullFrame());
- if (rv.NextStateIsTerminal() &&
- rv.NextStateAsTerminal() == TerminalState::SUCCESS) {
+ auto rv = ReadSingle(mData, mLength, FullFrame());
+ if (rv.is<TerminalState>() &&
+ rv.as<TerminalState>() == TerminalState::SUCCESS) {
PostDecodeDone();
}
return rv;
}
- return ReadMultiple(data, aLength);
+ return ReadMultiple(aDemuxer, aIsComplete);
}
-LexerTransition<nsWebPDecoder::State>
-nsWebPDecoder::ReadSingle(const uint8_t* aData, size_t aLength, bool aAppend, const IntRect& aFrameRect)
+LexerResult
+nsWebPDecoder::ReadSingle(const uint8_t* aData, size_t aLength, const IntRect& aFrameRect)
{
MOZ_ASSERT(!IsMetadataDecode());
MOZ_ASSERT(aData);
@@ -275,125 +418,120 @@ nsWebPDecoder::ReadSingle(const uint8_t* aData, size_t aLength, bool aAppend, co
("[this=%p] nsWebPDecoder::ReadSingle -- %zu bytes\n", this, aLength));
if (!mDecoder && NS_FAILED(CreateFrame(aFrameRect))) {
- return Transition::TerminateFailure();
+ return LexerResult(TerminalState::FAILURE);
}
- // XXX(aosmond): The demux API can be used for single images according to the
- // documentation. If WebPIAppend is not any more efficient in its buffering
- // than what we do for animated images, we should just combine the use cases.
bool complete;
- VP8StatusCode status;
- if (aAppend) {
- status = WebPIAppend(mDecoder, aData, aLength);
- } else {
- status = WebPIUpdate(mDecoder, aData, aLength);
- }
- switch (status) {
- case VP8_STATUS_OK:
- complete = true;
- break;
- case VP8_STATUS_SUSPENDED:
- complete = false;
- break;
- default:
- MOZ_LOG(sWebPLog, LogLevel::Error,
- ("[this=%p] nsWebPDecoder::ReadSingle -- append error %d\n",
- this, status));
- return Transition::TerminateFailure();
- }
+ do {
+ VP8StatusCode status = WebPIUpdate(mDecoder, aData, aLength);
+ switch (status) {
+ case VP8_STATUS_OK:
+ complete = true;
+ break;
+ case VP8_STATUS_SUSPENDED:
+ complete = false;
+ break;
+ default:
+ MOZ_LOG(sWebPLog, LogLevel::Error,
+ ("[this=%p] nsWebPDecoder::ReadSingle -- append error %d\n",
+ this, status));
+ return LexerResult(TerminalState::FAILURE);
+ }
- int lastRow = -1;
- int width = 0;
- int height = 0;
- int stride = 0;
- const uint8_t* rowStart = WebPIDecGetRGB(mDecoder, &lastRow, &width, &height, &stride);
- if (!rowStart || lastRow == -1) {
- return Transition::ContinueUnbuffered(State::WEBP_DATA);
- }
+ int lastRow = -1;
+ int width = 0;
+ int height = 0;
+ int stride = 0;
+ uint8_t* rowStart = WebPIDecGetRGB(mDecoder, &lastRow, &width, &height, &stride);
- if (width <= 0 || height <= 0 || stride <= 0) {
- MOZ_LOG(sWebPLog, LogLevel::Error,
- ("[this=%p] nsWebPDecoder::ReadSingle -- bad (w,h,s) = (%d, %d, %d)\n",
- this, width, height, stride));
- return Transition::TerminateFailure();
- }
+ MOZ_LOG(sWebPLog, LogLevel::Debug,
+ ("[this=%p] nsWebPDecoder::ReadSingle -- complete %d, read %d rows, "
+ "has %d rows available\n", this, complete, mLastRow, lastRow));
- for (int row = mLastRow; row < lastRow; row++) {
- const uint8_t* src = rowStart + row * stride;
- auto result = mPipe.WritePixelsToRow<uint32_t>([&]() -> NextPixel<uint32_t> {
- MOZ_ASSERT(mFormat == SurfaceFormat::B8G8R8A8 || src[3] == 0xFF);
- const uint32_t pixel = gfxPackedPixel(src[3], src[0], src[1], src[2]);
- src += 4;
- return AsVariant(pixel);
- });
- MOZ_ASSERT(result != WriteState::FAILURE);
- MOZ_ASSERT_IF(result == WriteState::FINISHED, complete && row == lastRow - 1);
-
- if (result == WriteState::FAILURE) {
+ if (!rowStart || lastRow == -1 || lastRow == mLastRow) {
+ return LexerResult(Yield::NEED_MORE_DATA);
+ }
+
+ if (width != mFrameRect.width || height != mFrameRect.height ||
+ stride < mFrameRect.width * 4 ||
+ lastRow > mFrameRect.height) {
MOZ_LOG(sWebPLog, LogLevel::Error,
- ("[this=%p] nsWebPDecoder::ReadSingle -- write pixels error\n",
- this));
- return Transition::TerminateFailure();
+ ("[this=%p] nsWebPDecoder::ReadSingle -- bad (w,h,s) = (%d, %d, %d)\n",
+ this, width, height, stride));
+ return LexerResult(TerminalState::FAILURE);
}
- }
- if (mLastRow != lastRow) {
- mLastRow = lastRow;
+ const bool noPremultiply =
+ bool(GetSurfaceFlags() & SurfaceFlags::NO_PREMULTIPLY_ALPHA);
+
+ for (int row = mLastRow; row < lastRow; row++) {
+ uint8_t* src = rowStart + row * stride;
+ if (mTransform) {
+ qcms_transform_data(mTransform, src, src, width);
+ }
- Maybe<SurfaceInvalidRect> invalidRect = mPipe.TakeInvalidRect();
- if (invalidRect) {
- PostInvalidation(invalidRect->mInputSpaceRect,
- Some(invalidRect->mOutputSpaceRect));
+ WriteState result;
+ if (noPremultiply) {
+ result = mPipe.WritePixelsToRow<uint32_t>([&]() -> NextPixel<uint32_t> {
+ MOZ_ASSERT(mFormat == SurfaceFormat::B8G8R8A8 || src[3] == 0xFF);
+ const uint32_t pixel =
+ gfxPackedPixelNoPreMultiply(src[3], src[0], src[1], src[2]);
+ src += 4;
+ return AsVariant(pixel);
+ });
+ } else {
+ result = mPipe.WritePixelsToRow<uint32_t>([&]() -> NextPixel<uint32_t> {
+ MOZ_ASSERT(mFormat == SurfaceFormat::B8G8R8A8 || src[3] == 0xFF);
+ const uint32_t pixel = gfxPackedPixel(src[3], src[0], src[1], src[2]);
+ src += 4;
+ return AsVariant(pixel);
+ });
+ }
+
+ Maybe<SurfaceInvalidRect> invalidRect = mPipe.TakeInvalidRect();
+ if (invalidRect) {
+ PostInvalidation(invalidRect->mInputSpaceRect,
+ Some(invalidRect->mOutputSpaceRect));
+ }
+
+ if (result == WriteState::FAILURE) {
+ MOZ_LOG(sWebPLog, LogLevel::Error,
+ ("[this=%p] nsWebPDecoder::ReadSingle -- write pixels error\n",
+ this));
+ return LexerResult(TerminalState::FAILURE);
+ }
+
+ if (result == WriteState::FINISHED) {
+ MOZ_ASSERT(row == lastRow - 1, "There was more data to read?");
+ complete = true;
+ break;
+ }
}
- }
+
+ mLastRow = lastRow;
+ } while (!complete);
if (!complete) {
- return Transition::ContinueUnbuffered(State::WEBP_DATA);
+ return LexerResult(Yield::NEED_MORE_DATA);
}
EndFrame();
- return Transition::TerminateSuccess();
+ return LexerResult(TerminalState::SUCCESS);
}
-LexerTransition<nsWebPDecoder::State>
-nsWebPDecoder::ReadMultiple(const uint8_t* aData, size_t aLength)
+LexerResult
+nsWebPDecoder::ReadMultiple(WebPDemuxer* aDemuxer, bool aIsComplete)
{
MOZ_ASSERT(!IsMetadataDecode());
- MOZ_ASSERT(aData);
+ MOZ_ASSERT(aDemuxer);
MOZ_LOG(sWebPLog, LogLevel::Debug,
- ("[this=%p] nsWebPDecoder::ReadMultiple -- %zu bytes\n", this, aLength));
-
- auto data = aData;
- size_t length = aLength;
- if (NS_FAILED(GetDataBuffer(data, length))) {
- return Transition::TerminateFailure();
- }
+ ("[this=%p] nsWebPDecoder::ReadMultiple\n", this));
- WebPDemuxState state;
- WebPData fragment;
- fragment.bytes = data;
- fragment.size = length;
- WebPDemuxer* demuxer = WebPDemuxPartial(&fragment, &state);
- if (!demuxer) {
- MOZ_LOG(sWebPLog, LogLevel::Error,
- ("[this=%p] nsWebPDecoder::ReadMultiple -- create demuxer error\n",
- this));
- return Transition::TerminateFailure();
- }
-
- if (state == WEBP_DEMUX_PARSE_ERROR) {
- MOZ_LOG(sWebPLog, LogLevel::Error,
- ("[this=%p] nsWebPDecoder::ReadMultiple -- demuxer parse error\n",
- this));
- WebPDemuxDelete(demuxer);
- return Transition::TerminateFailure();
- }
-
- bool complete = false;
+ bool complete = aIsComplete;
WebPIterator iter;
- auto rv = Transition::ContinueUnbuffered(State::WEBP_DATA);
- if (WebPDemuxGetFrame(demuxer, mCurrentFrame + 1, &iter)) {
+ auto rv = LexerResult(Yield::NEED_MORE_DATA);
+ if (WebPDemuxGetFrame(aDemuxer, mCurrentFrame + 1, &iter)) {
switch (iter.blend_method) {
case WEBP_MUX_BLEND:
mBlend = BlendMethod::OVER;
@@ -418,51 +556,34 @@ nsWebPDecoder::ReadMultiple(const uint8_t* aData, size_t aLength)
break;
}
- mFormat = iter.has_alpha ? SurfaceFormat::B8G8R8A8 : SurfaceFormat::B8G8R8X8;
+ mFormat = iter.has_alpha || mCurrentFrame > 0 ? SurfaceFormat::B8G8R8A8
+ : SurfaceFormat::B8G8R8X8;
mTimeout = FrameTimeout::FromRawMilliseconds(iter.duration);
nsIntRect frameRect(iter.x_offset, iter.y_offset, iter.width, iter.height);
- rv = ReadSingle(iter.fragment.bytes, iter.fragment.size, false, frameRect);
- complete = state == WEBP_DEMUX_DONE && !WebPDemuxNextFrame(&iter);
+ rv = ReadSingle(iter.fragment.bytes, iter.fragment.size, frameRect);
+ complete = complete && !WebPDemuxNextFrame(&iter);
WebPDemuxReleaseIterator(&iter);
}
- if (rv.NextStateIsTerminal()) {
- if (rv.NextStateAsTerminal() == TerminalState::SUCCESS) {
- // If we extracted one frame, and it is not the last, we need to yield to
- // the lexer to allow the upper layers to acknowledge the frame.
- if (!complete && !IsFirstFrameDecode()) {
- // The resume point is determined by whether or not we had to buffer.
- // If we have yet to buffer, we want to resume at the same point,
- // otherwise our internal buffer has everything we need and we want
- // to resume having consumed all of the current fragment.
- rv = Transition::ContinueUnbufferedAfterYield(State::WEBP_DATA,
- mData.empty() ? 0 : aLength);
- } else {
- uint32_t loopCount = WebPDemuxGetI(demuxer, WEBP_FF_LOOP_COUNT);
-
- MOZ_LOG(sWebPLog, LogLevel::Debug,
- ("[this=%p] nsWebPDecoder::ReadMultiple -- loop count %u\n",
- this, loopCount));
- PostDecodeDone(loopCount - 1);
- }
+ if (rv.is<TerminalState>() &&
+ rv.as<TerminalState>() == TerminalState::SUCCESS) {
+ // If we extracted one frame, and it is not the last, we need to yield to
+ // the lexer to allow the upper layers to acknowledge the frame.
+ if (!complete && !IsFirstFrameDecode()) {
+ rv = LexerResult(Yield::OUTPUT_AVAILABLE);
+ } else {
+ uint32_t loopCount = WebPDemuxGetI(aDemuxer, WEBP_FF_LOOP_COUNT);
+
+ MOZ_LOG(sWebPLog, LogLevel::Debug,
+ ("[this=%p] nsWebPDecoder::ReadMultiple -- loop count %u\n",
+ this, loopCount));
+ PostDecodeDone(loopCount - 1);
}
- } else if (NS_FAILED(SaveDataBuffer(data, length))) {
- rv = Transition::TerminateFailure();
}
- WebPDemuxDelete(demuxer);
return rv;
}
-LexerTransition<nsWebPDecoder::State>
-nsWebPDecoder::FinishedData()
-{
- // Since we set up an unbuffered read for SIZE_MAX bytes, if we actually read
- // all that data something is really wrong.
- MOZ_ASSERT_UNREACHABLE("Read the entire address space?");
- return Transition::TerminateFailure();
-}
-
} // namespace image
} // namespace mozilla
diff --git a/image/decoders/nsWebPDecoder.h b/image/decoders/nsWebPDecoder.h
index 5b3951cfc..cdd2849f3 100644
--- a/image/decoders/nsWebPDecoder.h
+++ b/image/decoders/nsWebPDecoder.h
@@ -16,7 +16,7 @@ namespace mozilla {
namespace image {
class RasterImage;
-class nsWebPDecoder : public Decoder
+class nsWebPDecoder final : public Decoder
{
public:
virtual ~nsWebPDecoder();
@@ -31,34 +31,28 @@ private:
// Decoders should only be instantiated via DecoderFactory.
explicit nsWebPDecoder(RasterImage* aImage);
- enum class State
- {
- WEBP_DATA,
- FINISHED_WEBP_DATA
- };
+ void ApplyColorProfile(const char* aProfile, size_t aLength);
- LexerTransition<State> ReadHeader(const char* aData, size_t aLength);
- LexerTransition<State> ReadPayload(const char* aData, size_t aLength);
- LexerTransition<State> FinishedData();
+ LexerResult UpdateBuffer(SourceBufferIterator& aIterator,
+ SourceBufferIterator::State aState);
+ LexerResult ReadData();
+ LexerResult ReadHeader(WebPDemuxer* aDemuxer, bool aIsComplete);
+ LexerResult ReadPayload(WebPDemuxer* aDemuxer, bool aIsComplete);
nsresult CreateFrame(const nsIntRect& aFrameRect);
void EndFrame();
- nsresult GetDataBuffer(const uint8_t*& aData, size_t& aLength);
- nsresult SaveDataBuffer(const uint8_t* aData, size_t aLength);
+ LexerResult ReadSingle(const uint8_t* aData, size_t aLength,
+ const IntRect& aFrameRect);
- LexerTransition<State> ReadSingle(const uint8_t* aData, size_t aLength,
- bool aAppend, const IntRect& aFrameRect);
-
- LexerTransition<State> ReadMultiple(const uint8_t* aData, size_t aLength);
-
- StreamingLexer<State> mLexer;
+ LexerResult ReadMultiple(WebPDemuxer* aDemuxer, bool aIsComplete);
/// The SurfacePipe used to write to the output surface.
SurfacePipe mPipe;
- /// The buffer used to accumulate data until the complete WebP header is received.
- Vector<uint8_t> mData;
+ /// The buffer used to accumulate data until the complete WebP header is
+ /// received, if and only if the iterator is discontiguous.
+ Vector<uint8_t> mBufferedData;
/// The libwebp output buffer descriptor pointing to the decoded data.
WebPDecBuffer mBuffer;
@@ -78,11 +72,35 @@ private:
/// Surface format for the current frame.
gfx::SurfaceFormat mFormat;
+ /// Frame rect for the current frame.
+ IntRect mFrameRect;
+
/// The last row of decoded pixels written to mPipe.
int mLastRow;
/// Number of decoded frames.
uint32_t mCurrentFrame;
+
+ /// Pointer to the start of the contiguous encoded image data.
+ const uint8_t* mData;
+
+ /// Length of data pointed to by mData.
+ size_t mLength;
+
+ /// True if the iterator has reached its end.
+ bool mIteratorComplete;
+
+ /// True if this decoding pass requires a WebPDemuxer.
+ bool mNeedDemuxer;
+
+ /// True if we have setup the color profile for the image.
+ bool mGotColorProfile;
+
+ /// Color management profile from the ICCP chunk in the image.
+ qcms_profile* mInProfile;
+
+ /// Color management transform to apply to image data.
+ qcms_transform* mTransform;
};
} // namespace image
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 17:42:12 +0000