[poc] curve-filter

third_party/WebKit/Source/platform/image-decoders/webp/WEBPImageDecoder.cpp

Index: third_party/WebKit/Source/platform/image-decoders/webp/WEBPImageDecoder.cpp
diff --git a/third_party/WebKit/Source/platform/image-decoders/webp/WEBPImageDecoder.cpp b/third_party/WebKit/Source/platform/image-decoders/webp/WEBPImageDecoder.cpp
index ce5a2f5813707ffd96d654517ea30ee105322ddf..6d375a8e183e621a71a88bef632e0fd08e272a88 100644
--- a/third_party/WebKit/Source/platform/image-decoders/webp/WEBPImageDecoder.cpp
+++ b/third_party/WebKit/Source/platform/image-decoders/webp/WEBPImageDecoder.cpp
@@ -28,6 +28,8 @@
 
 #include "platform/image-decoders/webp/WEBPImageDecoder.h"
 
+#include "platform/graphics/GraphicsScreen.h"
+
 #if USE(QCMSLIB)
 #include "qcms.h"
 #endif
@@ -315,23 +317,27 @@ void WEBPImageDecoder::clearColorTransform()
     m_transform = 0;
 }
 
-bool WEBPImageDecoder::createColorTransform(const char* data, size_t size)
+PassRefPtr<ColorSpaceProfile> WEBPImageDecoder::createColorTransform(const char* data, size_t size)
 {
     clearColorTransform();
 
     qcms_profile* deviceProfile = ImageDecoder::qcmsOutputDeviceProfile();
     if (!deviceProfile)
-        return false;
+        return nullptr;
+
     qcms_profile* inputProfile = qcms_profile_from_memory(data, size);
     if (!inputProfile)
-        return false;
+        return nullptr;
+
+    if (imageColorProfilesEnabled())
+        return ColorSpaceProfile::create(inputProfile);
 
     // We currently only support color profiles for RGB profiled images.
     ASSERT(rgbData == qcms_profile_get_color_space(inputProfile));
 
     if (qcms_profile_match(inputProfile, deviceProfile)) {
         qcms_profile_release(inputProfile);
-        return false;
+        return nullptr;
     }
 
     // The input image pixels are RGBA format.
@@ -339,14 +345,18 @@ bool WEBPImageDecoder::createColorTransform(const char* data, size_t size)
     // FIXME: Don't force perceptual intent if the image profile contains an intent.
     m_transform = qcms_transform_create(inputProfile, format, deviceProfile, QCMS_DATA_RGBA_8, QCMS_INTENT_PERCEPTUAL);
 
+    if (m_transform)
+        return ColorSpaceProfile::create(inputProfile);
+
     qcms_profile_release(inputProfile);
-    return !!m_transform;
+    return nullptr;
 }
 
 void WEBPImageDecoder::readColorProfile()
 {
     WebPChunkIterator chunkIterator;
     if (!WebPDemuxGetChunk(m_demux, "ICCP", 1, &chunkIterator)) {
+        RELEASE_ASSERT(!m_hasColorProfile && !m_transform);
         WebPDemuxReleaseChunkIterator(&chunkIterator);
         return;
     }
@@ -363,8 +373,22 @@ void WEBPImageDecoder::readColorProfile()
     else if (!ImageDecoder::inputDeviceColorProfile(profileData, profileSize))
         ignoreProfile = true;
 
-    if (!ignoreProfile)
-        m_hasColorProfile = createColorTransform(profileData, profileSize);
+    if (ignoreProfile) {
+        RELEASE_ASSERT(!m_hasColorProfile && !m_transform);
+        WebPDemuxReleaseChunkIterator(&chunkIterator);
+        return;
+    }
+
+    RefPtr<ColorSpaceProfile> imageColorProfile = createColorTransform(profileData, profileSize);
+    m_hasColorProfile = !!imageColorProfile.get();
+
+    if (m_hasColorProfile && imageColorProfilesEnabled()) {
+        RELEASE_ASSERT(imageColorProfile->profile());
+        m_colorProfile = imageColorProfile;
+        // Do not color correct decoded frames during decoding.
+        clearColorTransform();
+        RELEASE_ASSERT(!m_transform);
+    }
 
     WebPDemuxReleaseChunkIterator(&chunkIterator);
 }