| // Copyright (c) 2012 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_FEATURE_INFO_H_ |
| #define GPU_COMMAND_BUFFER_SERVICE_FEATURE_INFO_H_ |
| |
| #include <memory> |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "gpu/command_buffer/service/gles2_cmd_decoder.h" |
| #include "gpu/command_buffer/service/gles2_cmd_validation.h" |
| #include "gpu/config/gpu_driver_bug_workarounds.h" |
| #include "gpu/gpu_export.h" |
| |
| namespace base { |
| class CommandLine; |
| } |
| |
| namespace gl { |
| struct GLVersionInfo; |
| } |
| |
| namespace gpu { |
| namespace gles2 { |
| |
| // FeatureInfo records the features that are available for a ContextGroup. |
| class GPU_EXPORT FeatureInfo : public base::RefCounted<FeatureInfo> { |
| public: |
| struct FeatureFlags { |
| FeatureFlags(); |
| |
| bool chromium_framebuffer_multisample; |
| bool chromium_sync_query; |
| // Use glBlitFramebuffer() and glRenderbufferStorageMultisample() with |
| // GL_EXT_framebuffer_multisample-style semantics, since they are exposed |
| // as core GL functions on this implementation. |
| bool use_core_framebuffer_multisample; |
| bool multisampled_render_to_texture; |
| // Use the IMG GLenum values and functions rather than EXT. |
| bool use_img_for_multisampled_render_to_texture; |
| bool chromium_screen_space_antialiasing; |
| bool use_chromium_screen_space_antialiasing_via_shaders; |
| bool oes_standard_derivatives; |
| bool oes_egl_image_external; |
| bool nv_egl_stream_consumer_external; |
| bool oes_depth24; |
| bool oes_compressed_etc1_rgb8_texture; |
| bool packed_depth24_stencil8; |
| bool npot_ok; |
| bool enable_texture_float_linear; |
| bool enable_texture_half_float_linear; |
| bool angle_translated_shader_source; |
| bool angle_pack_reverse_row_order; |
| bool arb_texture_rectangle; |
| bool angle_instanced_arrays; |
| bool occlusion_query_boolean; |
| bool use_arb_occlusion_query2_for_occlusion_query_boolean; |
| bool use_arb_occlusion_query_for_occlusion_query_boolean; |
| bool native_vertex_array_object; |
| bool ext_texture_format_astc; |
| bool ext_texture_format_atc; |
| bool ext_texture_format_bgra8888; |
| bool ext_texture_format_dxt1; |
| bool ext_texture_format_dxt5; |
| bool enable_shader_name_hashing; |
| bool enable_samplers; |
| bool ext_draw_buffers; |
| bool nv_draw_buffers; |
| bool ext_frag_depth; |
| bool ext_shader_texture_lod; |
| bool use_async_readpixels; |
| bool map_buffer_range; |
| bool ext_discard_framebuffer; |
| bool angle_depth_texture; |
| bool is_swiftshader; |
| bool angle_texture_usage; |
| bool ext_texture_storage; |
| bool chromium_path_rendering; |
| bool chromium_framebuffer_mixed_samples; |
| bool blend_equation_advanced; |
| bool blend_equation_advanced_coherent; |
| bool ext_texture_rg; |
| bool chromium_image_ycbcr_420v; |
| bool chromium_image_ycbcr_422; |
| bool emulate_primitive_restart_fixed_index; |
| bool ext_render_buffer_format_bgra8888; |
| bool ext_multisample_compatibility; |
| bool ext_blend_func_extended; |
| bool ext_read_format_bgra; |
| bool desktop_srgb_support; |
| }; |
| |
| FeatureInfo(); |
| |
| // Constructor with workarounds taken from the current process's CommandLine |
| explicit FeatureInfo( |
| const GpuDriverBugWorkarounds& gpu_driver_bug_workarounds); |
| |
| // Constructor with workarounds taken from |command_line|. |
| FeatureInfo(const base::CommandLine& command_line, |
| const GpuDriverBugWorkarounds& gpu_driver_bug_workarounds); |
| |
| // Initializes the feature information. Needs a current GL context. |
| bool Initialize(ContextType context_type, |
| const DisallowedFeatures& disallowed_features); |
| |
| // Helper that defaults to no disallowed features and a GLES2 context. |
| bool InitializeForTesting(); |
| // Helper that defaults to a GLES2 context. |
| bool InitializeForTesting(const DisallowedFeatures& disallowed_features); |
| |
| const Validators* validators() const { |
| return &validators_; |
| } |
| |
| ContextType context_type() const { return context_type_; } |
| |
| const std::string& extensions() const { |
| return extensions_; |
| } |
| |
| const FeatureFlags& feature_flags() const { |
| return feature_flags_; |
| } |
| |
| const GpuDriverBugWorkarounds& workarounds() const { return workarounds_; } |
| |
| const DisallowedFeatures& disallowed_features() const { |
| return disallowed_features_; |
| } |
| |
| const gl::GLVersionInfo& gl_version_info() const { |
| DCHECK(gl_version_info_.get()); |
| return *(gl_version_info_.get()); |
| } |
| |
| bool IsES3Capable() const; |
| void EnableES3Validators(); |
| |
| bool IsES3Enabled() const { |
| return unsafe_es3_apis_enabled_; |
| } |
| |
| bool disable_shader_translator() const { return disable_shader_translator_; } |
| |
| bool IsWebGLContext() const; |
| |
| void EnableCHROMIUMColorBufferFloatRGBA(); |
| void EnableCHROMIUMColorBufferFloatRGB(); |
| void EnableEXTColorBufferFloat(); |
| void EnableOESTextureFloatLinear(); |
| void EnableOESTextureHalfFloatLinear(); |
| |
| private: |
| friend class base::RefCounted<FeatureInfo>; |
| friend class BufferManagerClientSideArraysTest; |
| |
| ~FeatureInfo(); |
| |
| void AddExtensionString(const char* s); |
| void InitializeBasicState(const base::CommandLine* command_line); |
| void InitializeFeatures(); |
| |
| Validators validators_; |
| |
| DisallowedFeatures disallowed_features_; |
| |
| ContextType context_type_; |
| |
| // The extensions string returned by glGetString(GL_EXTENSIONS); |
| std::string extensions_; |
| |
| // Flags for some features |
| FeatureFlags feature_flags_; |
| |
| // Flags for Workarounds. |
| const GpuDriverBugWorkarounds workarounds_; |
| |
| // Whether the command line switch kEnableUnsafeES3APIs is passed in. |
| bool enable_unsafe_es3_apis_switch_; |
| |
| bool unsafe_es3_apis_enabled_; |
| |
| bool chromium_color_buffer_float_rgba_available_; |
| bool chromium_color_buffer_float_rgb_available_; |
| bool ext_color_buffer_float_available_; |
| bool oes_texture_float_linear_available_; |
| bool oes_texture_half_float_linear_available_; |
| |
| bool disable_shader_translator_; |
| std::unique_ptr<gl::GLVersionInfo> gl_version_info_; |
| |
| DISALLOW_COPY_AND_ASSIGN(FeatureInfo); |
| }; |
| |
| } // namespace gles2 |
| } // namespace gpu |
| |
| #endif // GPU_COMMAND_BUFFER_SERVICE_FEATURE_INFO_H_ |