JPEG YUV Decoding

src/images/SkImageDecoder.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "SkImageDecoder.h"
 #include "SkBitmap.h"
@@ skipping 267 matching lines @@
             if (kUnknown_Format == *format) {
                 if (stream->rewind()) {
                     *format = GetStreamFormat(stream);
                 }
             }
         }
         delete codec;
     }
     return success;
 }
+
+bool SkImageDecoder::getYUVComponentSizes(SkStream* stream, SkISize componentSizes[3]) {
+    return this->onDecodeToYUV(stream, componentSizes, NULL);
+}
+
+bool SkImageDecoder::decodeToYUV(SkStream* stream, SkISize componentSizes[3], void* planes[3],
+                                 size_t rowBytes[3]) {
+    SkImagePlanes imagePlanes(planes, rowBytes);
+    return this->onDecodeToYUV(stream, componentSizes, &imagePlanes);
+}
+
+SkImagePlanes::SkImagePlanes()
+{

[reed1, 2014/10/13 13:15:36]

nit: place { on the same lines as the constructor

[sugoi1, 2014/10/14 15:07:36]

Code removed

+    for (int i = 0; i < 3; ++i) {
+        m_planes[i] = 0;

[reed1, 2014/10/13 13:15:35]

m_planes[i] = NULL;

[sugoi1, 2014/10/14 15:07:36]

Code removed

+        m_rowBytes[i] = 0;
+    }
+}
+
+SkImagePlanes::SkImagePlanes(void* planes[3], size_t rowBytes[3])
+{
+    for (int i = 0; i < 3; ++i) {
+        m_planes[i] = planes[i];
+        m_rowBytes[i] = rowBytes[i];
+    }
+}
+
+void* SkImagePlanes::plane(int i)
+{
+    SkASSERT((i >= 0) && i < 3);
+    return m_planes[i];
+}
+
+size_t SkImagePlanes::rowBytes(int i) const
+{
+    SkASSERT((i >= 0) && i < 3);
+    return m_rowBytes[i];
+}