// Copyright 2013 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 "cc/resources/video_resource_updater.h"

#include "base/memory/shared_memory.h"
#include "cc/resources/resource_provider.h"
#include "cc/test/fake_output_surface.h"
#include "cc/test/fake_output_surface_client.h"
#include "cc/test/test_shared_bitmap_manager.h"
#include "cc/test/test_web_graphics_context_3d.h"
#include "media/base/video_frame.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace cc {
namespace {

class VideoResourceUpdaterTest : public testing::Test {
 protected:
  VideoResourceUpdaterTest() {
    scoped_ptr<TestWebGraphicsContext3D> context3d =
        TestWebGraphicsContext3D::Create();
    context3d_ = context3d.get();

    output_surface3d_ =
        FakeOutputSurface::Create3d(context3d.Pass());
    CHECK(output_surface3d_->BindToClient(&client_));
    shared_bitmap_manager_.reset(new TestSharedBitmapManager());
    resource_provider3d_ = ResourceProvider::Create(
        output_surface3d_.get(), shared_bitmap_manager_.get(), 0, false, 1,
        false);
  }

  scoped_refptr<media::VideoFrame> CreateTestYUVVideoFrame() {
    const int kDimension = 10;
    gfx::Size size(kDimension, kDimension);
    static uint8 y_data[kDimension * kDimension] = { 0 };
    static uint8 u_data[kDimension * kDimension / 2] = { 0 };
    static uint8 v_data[kDimension * kDimension / 2] = { 0 };

    return media::VideoFrame::WrapExternalYuvData(
        media::VideoFrame::YV16,  // format
        size,                     // coded_size
        gfx::Rect(size),          // visible_rect
        size,                     // natural_size
        size.width(),             // y_stride
        size.width() / 2,         // u_stride
        size.width() / 2,         // v_stride
        y_data,                   // y_data
        u_data,                   // u_data
        v_data,                   // v_data
        base::TimeDelta(),        // timestamp,
        base::Closure());         // no_longer_needed_cb
  }

  TestWebGraphicsContext3D* context3d_;
  FakeOutputSurfaceClient client_;
  scoped_ptr<FakeOutputSurface> output_surface3d_;
  scoped_ptr<TestSharedBitmapManager> shared_bitmap_manager_;
  scoped_ptr<ResourceProvider> resource_provider3d_;
};

TEST_F(VideoResourceUpdaterTest, SoftwareFrame) {
  VideoResourceUpdater updater(output_surface3d_->context_provider().get(),
                               resource_provider3d_.get());
  scoped_refptr<media::VideoFrame> video_frame = CreateTestYUVVideoFrame();

  VideoFrameExternalResources resources =
      updater.CreateExternalResourcesFromVideoFrame(video_frame);
  EXPECT_EQ(VideoFrameExternalResources::YUV_RESOURCE, resources.type);
}

}  // namespace
}  // namespace cc