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// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GPU_IPC_SERVICE_IMAGE_TRANSPORT_SURFACE_H_
#define GPU_IPC_SERVICE_IMAGE_TRANSPORT_SURFACE_H_
#include <stdint.h>
#include "base/compiler_specific.h"
#include "base/memory/weak_ptr.h"
#include "build/build_config.h"
#include "gpu/command_buffer/service/shared_context_state.h"
#include "gpu/ipc/common/surface_handle.h"
#include "gpu/ipc/service/gpu_ipc_service_export.h"
#include "ui/gl/gl_surface.h"
#include "ui/gl/presenter.h"
namespace gpu {
class GpuDriverBugWorkarounds;
struct GpuFeatureInfo;
// The GPU process is agnostic as to how it displays results. On some platforms
// it renders directly to window. On others it renders offscreen and transports
// the results to the browser process to display. This file provides a simple
// framework for making the offscreen path seem more like the onscreen path.
class GPU_IPC_SERVICE_EXPORT ImageTransportSurface {
public:
// Creates the appropriate presenter if surfaceless presentation is supported.
// This will be implemented separately by each platform. On failure, a null
// scoped_refptr should be returned. Callers should try to fallback to
// presentation using GLSurface by calling `CreateNativeGLSurface` below.
static scoped_refptr<gl::Presenter> CreatePresenter(
scoped_refptr<SharedContextState> context_state,
const GpuDriverBugWorkarounds& workarounds,
const GpuFeatureInfo& gpu_feature_info,
SurfaceHandle surface_handle);
// Creates the appropriate native surface depending on the GL implementation.
// This will be implemented separately by each platform. On failure, a null
// scoped_refptr should be returned.
static scoped_refptr<gl::GLSurface> CreateNativeGLSurface(
gl::GLDisplay* display,
SurfaceHandle surface_handle,
gl::GLSurfaceFormat format);
ImageTransportSurface(const ImageTransportSurface&) = delete;
ImageTransportSurface& operator=(const ImageTransportSurface&) = delete;
};
} // namespace gpu
#endif // GPU_IPC_SERVICE_IMAGE_TRANSPORT_SURFACE_H_
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