[poc] curve-filter

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

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 11 matching lines @@
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "platform/image-decoders/webp/WEBPImageDecoder.h"
 
+#include "platform/graphics/GraphicsScreen.h"
+
 #if USE(QCMSLIB)
 #include "qcms.h"
 #endif
 
 #if CPU(BIG_ENDIAN) || CPU(MIDDLE_ENDIAN)
 #error Blink assumes a little-endian target.
 #endif
 
 #if SK_B32_SHIFT // Output little-endian RGBA pixels (Android).
 inline WEBP_CSP_MODE outputMode(bool hasAlpha) { return hasAlpha ? MODE_rgbA : MODE_RGBA; }
@@ skipping 267 matching lines @@
 
 #if USE(QCMSLIB)
 
 void WEBPImageDecoder::clearColorTransform()
 {
     if (m_transform)
         qcms_transform_release(m_transform);
     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;
 
     // We currently only support color profiles for RGB profiled images.
     ASSERT(rgbData == qcms_profile_get_color_space(inputProfile));
     // The input image pixels are RGBA format.
     qcms_data_type format = QCMS_DATA_RGBA_8;
     // 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;
     }
 
     const char* profileData = reinterpret_cast<const char*>(chunkIterator.chunk.bytes);
     size_t profileSize = chunkIterator.chunk.size;
 
     // Only accept RGB color profiles from input class devices.
     bool ignoreProfile = false;
     if (profileSize < ImageDecoder::iccColorProfileHeaderLength)
         ignoreProfile = true;
     else if (!ImageDecoder::rgbColorProfile(profileData, profileSize))
         ignoreProfile = true;
     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);
 }
 
 #endif // USE(QCMSLIB)
 
 void WEBPImageDecoder::applyPostProcessing(size_t frameIndex)
 {
     ImageFrame& buffer = m_frameBufferCache[frameIndex];
     int width;
@@ skipping 178 matching lines @@
             return false;
         }
         // FALLTHROUGH
     default:
         clear();
         return setFailed();
     }
 }
 
 } // namespace blink