| // Copyright (c) 2016 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 GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_COPY_TEX_IMAGE_H_ |
| #define GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_COPY_TEX_IMAGE_H_ |
| |
| #include <array> |
| |
| #include "base/containers/hash_tables.h" |
| #include "base/macros.h" |
| #include "gpu/command_buffer/service/feature_info.h" |
| #include "gpu/command_buffer/service/gl_utils.h" |
| #include "gpu/gpu_export.h" |
| |
| namespace gpu { |
| namespace gles2 { |
| |
| class GLES2Decoder; |
| |
| // This class encapsulates the resources required to implement the |
| // glCopyTexImage and glCopyTexSubImage commands. These commands somtimes |
| // require a blit. |
| class GPU_EXPORT CopyTexImageResourceManager { |
| public: |
| explicit CopyTexImageResourceManager(const gles2::FeatureInfo* feature_info); |
| ~CopyTexImageResourceManager(); |
| |
| void Initialize(const gles2::GLES2Decoder* decoder); |
| void Destroy(); |
| |
| void DoCopyTexImage2DToLUMACompatibilityTexture( |
| const gles2::GLES2Decoder* decoder, |
| GLuint dest_texture, |
| GLenum dest_texture_target, |
| GLenum dest_target, |
| GLenum luma_format, |
| GLenum luma_type, |
| GLint level, |
| GLenum internal_format, |
| GLint x, |
| GLint y, |
| GLsizei width, |
| GLsizei height, |
| GLuint source_framebuffer, |
| GLenum source_framebuffer_internal_format); |
| |
| void DoCopyTexSubImageToLUMACompatibilityTexture( |
| const gles2::GLES2Decoder* decoder, |
| GLuint dest_texture, |
| GLenum dest_texture_target, |
| GLenum dest_target, |
| GLenum luma_format, |
| GLenum luma_type, |
| GLint level, |
| GLint xoffset, |
| GLint yoffset, |
| GLint zoffset, |
| GLint x, |
| GLint y, |
| GLsizei width, |
| GLsizei height, |
| GLuint source_framebuffer, |
| GLenum source_framebuffer_internal_format); |
| |
| static bool CopyTexImageRequiresBlit(const gles2::FeatureInfo* feature_info, |
| GLenum dest_texture_format); |
| |
| private: |
| scoped_refptr<const gles2::FeatureInfo> feature_info_; |
| |
| bool initialized_ = false; |
| |
| GLuint blit_program_ = 0; |
| |
| std::array<GLuint, 2> scratch_textures_ = {{0, 0}}; |
| GLuint scratch_fbo_ = 0; |
| |
| GLuint vao_ = 0; |
| |
| DISALLOW_COPY_AND_ASSIGN(CopyTexImageResourceManager); |
| }; |
| |
| } // namespace gles2 |
| } // namespace gpu |
| |
| #endif // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_COPY_TEX_IMAGE_H_ |