chromium/gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h

// 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_COMMAND_BUFFER_SERVICE_GLES2_CMD_COPY_TEXTURE_CHROMIUM_H_
#define GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_COPY_TEXTURE_CHROMIUM_H_

#include "gpu/command_buffer/common/gles2_cmd_utils.h"
#include "gpu/command_buffer/service/feature_info.h"
#include "gpu/gpu_gles2_export.h"

namespace gpu {

class DecoderContext;

namespace gles2 {

class CopyTexImageResourceManager;

enum class CopyTextureMethod { … };

// TODOs([email protected]):
// 1. Add readback path for RGB9_E5 and float formats (if extension isn't
// available and they are not color-renderable).
// 2. Support GL_TEXTURE_3D as valid dest_target.
// 3. Support ALPHA, LUMINANCE and LUMINANCE_ALPHA formats on core profile.

// This class encapsulates the resources required to implement the
// GL_CHROMIUM_copy_texture extension.  The copy operation is performed
// via glCopyTexImage2D() or a blit to a framebuffer object.
// The target of |dest_id| texture must be GL_TEXTURE_2D.
class GPU_GLES2_EXPORT CopyTextureCHROMIUMResourceManager { … };

}  // namespace gles2
}  // namespace gpu

#endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_COPY_TEXTURE_CHROMIUM_H_