1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef GPU_COMMAND_BUFFER_SERVICE_FEATURE_INFO_H_
6 #define GPU_COMMAND_BUFFER_SERVICE_FEATURE_INFO_H_
9 #include "base/macros.h"
10 #include "base/memory/ref_counted.h"
11 #include "base/memory/scoped_ptr.h"
12 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
13 #include "gpu/command_buffer/service/gles2_cmd_validation.h"
14 #include "gpu/config/gpu_driver_bug_workaround_type.h"
15 #include "gpu/gpu_export.h"
28 // FeatureInfo records the features that are available for a ContextGroup.
29 class GPU_EXPORT FeatureInfo
: public base::RefCounted
<FeatureInfo
> {
34 bool chromium_color_buffer_float_rgba
;
35 bool chromium_color_buffer_float_rgb
;
36 bool chromium_framebuffer_multisample
;
37 bool chromium_sync_query
;
38 // Use glBlitFramebuffer() and glRenderbufferStorageMultisample() with
39 // GL_EXT_framebuffer_multisample-style semantics, since they are exposed
40 // as core GL functions on this implementation.
41 bool use_core_framebuffer_multisample
;
42 bool multisampled_render_to_texture
;
43 // Use the IMG GLenum values and functions rather than EXT.
44 bool use_img_for_multisampled_render_to_texture
;
45 bool oes_standard_derivatives
;
46 bool oes_egl_image_external
;
48 bool oes_compressed_etc1_rgb8_texture
;
49 bool packed_depth24_stencil8
;
51 bool enable_texture_float_linear
;
52 bool enable_texture_half_float_linear
;
53 bool angle_translated_shader_source
;
54 bool angle_pack_reverse_row_order
;
55 bool arb_texture_rectangle
;
56 bool angle_instanced_arrays
;
57 bool occlusion_query_boolean
;
58 bool use_arb_occlusion_query2_for_occlusion_query_boolean
;
59 bool use_arb_occlusion_query_for_occlusion_query_boolean
;
60 bool native_vertex_array_object
;
61 bool ext_texture_format_atc
;
62 bool ext_texture_format_bgra8888
;
63 bool ext_texture_format_dxt1
;
64 bool ext_texture_format_dxt5
;
65 bool enable_shader_name_hashing
;
67 bool ext_draw_buffers
;
70 bool ext_shader_texture_lod
;
71 bool use_async_readpixels
;
72 bool map_buffer_range
;
73 bool ext_discard_framebuffer
;
74 bool angle_depth_texture
;
76 bool angle_texture_usage
;
77 bool ext_texture_storage
;
78 bool chromium_path_rendering
;
79 bool blend_equation_advanced
;
80 bool blend_equation_advanced_coherent
;
82 bool enable_subscribe_uniform
;
83 bool emulate_primitive_restart_fixed_index
;
84 bool ext_render_buffer_format_bgra8888
;
90 #define GPU_OP(type, name) bool name;
91 GPU_DRIVER_BUG_WORKAROUNDS(GPU_OP
)
94 // Note: 0 here means use driver limit.
95 GLint max_texture_size
;
96 GLint max_cube_map_texture_size
;
97 GLint max_fragment_uniform_vectors
;
98 GLint max_varying_vectors
;
99 GLint max_vertex_uniform_vectors
;
100 GLint max_copy_texture_chromium_size
;
103 // Constructor with workarounds taken from the current process's CommandLine
106 // Constructor with workarounds taken from |command_line|
107 FeatureInfo(const base::CommandLine
& command_line
);
109 // Initializes the feature information. Needs a current GL context.
111 bool Initialize(const DisallowedFeatures
& disallowed_features
);
113 const Validators
* validators() const {
117 const std::string
& extensions() const {
121 const FeatureFlags
& feature_flags() const {
122 return feature_flags_
;
125 const Workarounds
& workarounds() const {
129 const gfx::GLVersionInfo
& gl_version_info() const {
130 DCHECK(gl_version_info_
.get());
131 return *(gl_version_info_
.get());
134 bool IsES3Capable() const;
135 void EnableES3Validators();
137 bool IsES3Enabled() const {
138 return unsafe_es3_apis_enabled_
;
142 friend class base::RefCounted
<FeatureInfo
>;
143 friend class BufferManagerClientSideArraysTest
;
147 void AddExtensionString(const char* s
);
148 void InitializeBasicState(const base::CommandLine
* command_line
);
149 void InitializeFeatures();
151 Validators validators_
;
153 DisallowedFeatures disallowed_features_
;
155 // The extensions string returned by glGetString(GL_EXTENSIONS);
156 std::string extensions_
;
158 // Flags for some features
159 FeatureFlags feature_flags_
;
161 // Flags for Workarounds.
162 Workarounds workarounds_
;
164 // Whether the command line switch kEnableUnsafeES3APIs is passed in.
165 bool enable_unsafe_es3_apis_switch_
;
167 bool unsafe_es3_apis_enabled_
;
169 // Whether the command line switch kEnableGLPathRendering is passed in.
170 bool enable_gl_path_rendering_switch_
;
172 scoped_ptr
<gfx::GLVersionInfo
> gl_version_info_
;
174 DISALLOW_COPY_AND_ASSIGN(FeatureInfo
);
180 #endif // GPU_COMMAND_BUFFER_SERVICE_FEATURE_INFO_H_