gpu: Add YCbCr 420v extension.

ui/gl/gl_image_io_surface_unittest.cc

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "testing/gtest/include/gtest/gtest.h"
+#include "ui/gfx/mac/io_surface_manager.h"
+#include "ui/gl/gl_image_io_surface.h"
+#include "ui/gl/test/gl_image_test_template.h"
+
+namespace gfx {
+namespace {
+
+class GLImageIOSurface420vTestDelegate {
+ public:
+  scoped_refptr<gl::GLImage> CreateSolidColorImage(
+      const Size& size,
+      const uint8_t color[4]) const {
+    scoped_refptr<gl::GLImageIOSurface> image(
+        new gl::GLImageIOSurface(size, GL_RGB_YCBCR_420V_CHROMIUM));
+    IOSurfaceRef surface_ref =
+        IOSurfaceManager::CreateIOSurface(size, BufferFormat::YUV_420_BIPLANAR);
+    IOReturn status = IOSurfaceLock(surface_ref, 0, nullptr);
+    EXPECT_NE(status, kIOReturnCannotLock);
+    void* y_data = IOSurfaceGetBaseAddressOfPlane(surface_ref, 0);
+    void* uv_data = IOSurfaceGetBaseAddressOfPlane(surface_ref, 1);
+
+    GLImageTestSupport::SetBufferDataToColor(
+        size.width(), size.height(),
+        IOSurfaceGetBytesPerRowOfPlane(surface_ref, 0), 0,
+        BufferFormat::YUV_420_BIPLANAR, color, static_cast<uint8_t*>(y_data));
+    GLImageTestSupport::SetBufferDataToColor(
+        size.width(), size.height(),
+        IOSurfaceGetBytesPerRowOfPlane(surface_ref, 1), 1,
+        BufferFormat::YUV_420_BIPLANAR, color, static_cast<uint8_t*>(uv_data));
+    IOSurfaceUnlock(surface_ref, 0, nullptr);
+
+    bool rv = image->Initialize(surface_ref, GenericSharedMemoryId(1),
+                                BufferFormat::YUV_420_BIPLANAR);
+    EXPECT_TRUE(rv);
+
+    return image;
+  }
+};
+
+INSTANTIATE_TYPED_TEST_CASE_P(GLImageIOSurface,
+                              GLImageTest,
+                              GLImageIOSurface420vTestDelegate);

[reveman, 2015/11/02 01:09:44]

nit: we should run this test for every format we support. if you're adding this
test as part of this patch then run it for every format and not just 420v. fine
to not include the test in this patch at all if you prefer.

[Daniele Castagna, 2015/11/02 19:35:51]

Done.

+
+INSTANTIATE_TYPED_TEST_CASE_P(GLImageIOSurface,
+                              GLImageCopyTest,
+                              GLImageIOSurface420vTestDelegate);
+
+}  // namespace
+}  // namespace gfx