Image decode color: Push color profile from browser to renderer

third_party/WebKit/Source/platform/image-decoders/ImageDecoder.cpp

 /*
  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 251 matching lines @@
     ASSERT((i >= 0) && i < 3);
     return m_planes[i];
 }
 
 size_t ImagePlanes::rowBytes(int i) const
 {
     ASSERT((i >= 0) && i < 3);
     return m_rowBytes[i];
 }
 
-bool ImageDecoder::hasColorProfile() const
-{
-#if USE(QCMSLIB)
-    return m_sourceToOutputDeviceColorTransform.get();
-#else
-    return false;
-#endif
-}
-
 #if USE(QCMSLIB)
 namespace {
 
 const unsigned kIccColorProfileHeaderLength = 128;
 
 bool rgbColorProfile(const char* profileData, unsigned profileLength)
 {
     ASSERT_UNUSED(profileLength, profileLength >= kIccColorProfileHeaderLength);
 
     return !memcmp(&profileData[16], "RGB ", 4);
@@ skipping 33 matching lines @@
     }
     if (!inputProfile)
         return;
 
     // We currently only support color profiles for RGB profiled images.
     ASSERT(rgbData == qcms_profile_get_color_space(inputProfile.get()));
 
     // Take a lock around initializing and accessing the global device color profile.
     SpinLock::Guard guard(gOutputDeviceProfileLock);
 
-    // Initialize the output device profile.
+    // Initialize the output device profile if it has not been received yet.
     if (!gOutputDeviceProfile) {
-        // FIXME: Add optional ICCv4 support and support for multiple monitors.
-        WebVector<char> profile;
-        Platform::current()->screenColorProfile(&profile);
+        gOutputDeviceProfile = qcms_profile_sRGB();
+        qcms_profile_precache_output_transform(gOutputDeviceProfile);
+    }
 
+    if (qcms_profile_match(inputProfile.get(), gOutputDeviceProfile))
+        return;
+
+    qcms_data_type dataFormat = hasAlpha ? QCMS_DATA_RGBA_8 : QCMS_DATA_RGB_8;
+
+    // FIXME: Don't force perceptual intent if the image profile contains an intent.
+    m_sourceToOutputDeviceColorTransform = adoptPtr(qcms_transform_create(inputProfile.get(), dataFormat, gOutputDeviceProfile, QCMS_DATA_RGBA_8, QCMS_INTENT_PERCEPTUAL));
+}
+
+void ImageDecoder::setOutputDeviceColorProfile(const WebVector<char>& profile)
+{
+    SpinLock::Guard guard(gOutputDeviceProfileLock);
+
+    // FIXME: Only ever accept one color profile for the duration of the process.
+    if (!gOutputDeviceProfile) {
         if (!profile.isEmpty())
             gOutputDeviceProfile = qcms_profile_from_memory(profile.data(), profile.size());
 
         if (gOutputDeviceProfile && qcms_profile_is_bogus(gOutputDeviceProfile)) {
             qcms_profile_release(gOutputDeviceProfile);
             gOutputDeviceProfile = nullptr;
         }
 
         if (!gOutputDeviceProfile)
             gOutputDeviceProfile = qcms_profile_sRGB();
 
         qcms_profile_precache_output_transform(gOutputDeviceProfile);
     }
-
-    if (qcms_profile_match(inputProfile.get(), gOutputDeviceProfile))
-        return;
-
-    qcms_data_type dataFormat = hasAlpha ? QCMS_DATA_RGBA_8 : QCMS_DATA_RGB_8;
-
-    // FIXME: Don't force perceptual intent if the image profile contains an intent.
-    m_sourceToOutputDeviceColorTransform = adoptPtr(qcms_transform_create(inputProfile.get(), dataFormat, gOutputDeviceProfile, QCMS_DATA_RGBA_8, QCMS_INTENT_PERCEPTUAL));
 }
 
-#endif // USE(QCMSLIB)
+bool ImageDecoder::hasColorProfile() const
+{
+    return m_sourceToOutputDeviceColorTransform.get();
+}
+
+#else // USE(QCMSLIB)
+
+void ImageDecoder::setOutputDeviceColorProfile(const WebVector<char>& colorProfile)
+{
+}
+
+bool ImageDecoder::hasColorProfile() const
+{
+    return false;
+}
+
+#endif // !USE(QCMSLIB)
 
 } // namespace blink