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// Copyright 2019 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.
#ifndef MEDIA_GPU_TEST_VIDEO_PLAYER_FRAME_RENDERER_THUMBNAIL_H_
#define MEDIA_GPU_TEST_VIDEO_PLAYER_FRAME_RENDERER_THUMBNAIL_H_
#include <map>
#include <memory>
#include <string>
#include <vector>
#include "base/files/file_path.h"
#include "base/sequence_checker.h"
#include "base/synchronization/waitable_event.h"
#include "base/thread_annotations.h"
#include "base/threading/thread.h"
#include "gpu/command_buffer/common/gl2_types.h"
#include "media/gpu/test/video_player/frame_renderer.h"
namespace gl {
class GLContext;
class GLSurface;
} // namespace gl
namespace media {
namespace test {
// The thumbnail frame renderer draws a thumbnail of each frame into a large
// image containing 10x10 thumbnails. The checksum of this image can then be
// compared to a golden value.
// Rendering introduces small platform-dependant differences, so multiple golden
// values need to be maintained. The thumbnail frame renderer should only be
// used on older platforms that are not supported by the FrameValidator, and
// will be deprecated soon.
class FrameRendererThumbnail : public FrameRenderer {
public:
~FrameRendererThumbnail() override;
// Create an instance of the thumbnail frame renderer.
static std::unique_ptr<FrameRendererThumbnail> Create(
const std::vector<std::string> thumbnail_checksums,
const base::FilePath& output_folder);
// FrameRenderer implementation
// Acquire the GL context on the |renderer_task_runner_|. This needs to be
// called before executing any GL-related functions. The context will remain
// current on the |renderer_task_runner_| until the renderer is destroyed.
bool AcquireGLContext() override;
// Get the active GL context on the |renderer_task_runner_|.
gl::GLContext* GetGLContext() override;
void RenderFrame(scoped_refptr<VideoFrame> video_frame) override;
void WaitUntilRenderingDone() override;
scoped_refptr<VideoFrame> CreateVideoFrame(VideoPixelFormat pixel_format,
const gfx::Size& texture_size,
uint32_t texture_target,
uint32_t* texture_id) override;
// Validate the thumbnail image by comparing it against known golden values.
bool ValidateThumbnail();
private:
explicit FrameRendererThumbnail(
const std::vector<std::string>& thumbnail_checksums,
const base::FilePath& output_folder);
// Initialize the frame renderer, performs all rendering-related setup.
void Initialize();
// Perform cleanup on the |renderer_task_runner_|, releases the GL context.
void DestroyTask(base::WaitableEvent* done);
// Initialize the thumbnail image the frame thumbnails will be rendered to on
// the |renderer_task_runner_|.
void InitializeThumbnailImageTask();
// Destroy the thumbnail image on the |renderer_task_runner_|.
void DestroyThumbnailImageTask();
// Render the texture with specified |texture_id| to the thumbnail image on
// the |renderer_task_runner_|.
void RenderThumbnailTask(uint32_t texture_target, uint32_t texture_id);
// Convert the thumbnail image to RGBA on the |renderer_task_runner_|.
const std::vector<uint8_t> ConvertThumbnailToRGBATask();
// Validate the thumbnail image on the |renderer_task_runner_|. The validated
// thumbnail will be saved to disk on failure.
void ValidateThumbnailTask(bool* success, base::WaitableEvent* done);
// Save the thumbnail image to disk on the |renderer_task_runner_|.
void SaveThumbnailTask();
// Destroy the texture associated with the |mailbox| on the
// |renderer_task_runner_|.
void DeleteTextureTask(const gpu::Mailbox& mailbox, const gpu::SyncToken&);
// The number of frames rendered so far.
size_t frame_count_ = 0u;
// The list of thumbnail checksums for all platforms.
const std::vector<std::string> thumbnail_checksums_;
// Map between mailboxes and texture id's.
std::map<gpu::Mailbox, uint32_t> mailbox_texture_map_;
// Id of the frame buffer used to render the thumbnails image.
GLuint thumbnails_fbo_id_ = 0u;
// Size of the frame buffer used to render the thumbnails image.
gfx::Size thumbnails_fbo_size_;
// Texture id of the thumbnails image.
GLuint thumbnails_texture_id_ = 0u;
// Size of the individual thumbnails rendered to the thumbnails image.
gfx::Size thumbnail_size_;
// Vertex buffer used to render thumbnails to the thumbnails image.
GLuint vertex_buffer_ = 0u;
// Shader program used to render thumbnails to the thumbnails image.
GLuint program_ = 0u;
// GL context used for rendering.
scoped_refptr<gl::GLContext> gl_context_;
// GL surface used for rendering.
scoped_refptr<gl::GLSurface> gl_surface_;
// Whether GL was initialized, as it should only happen once.
static bool gl_initialized_;
// Output folder the thumbnails image will be written to by SaveThumbnail().
const base::FilePath output_folder_;
// Renderer thread task runner.
scoped_refptr<base::SequencedTaskRunner> renderer_task_runner_;
SEQUENCE_CHECKER(client_sequence_checker_);
SEQUENCE_CHECKER(renderer_sequence_checker_);
DISALLOW_COPY_AND_ASSIGN(FrameRendererThumbnail);
};
} // namespace test
} // namespace media
#endif // MEDIA_GPU_TEST_VIDEO_PLAYER_FRAME_RENDERER_THUMBNAIL_H_