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. 4 5 #ifndef UI_GL_GL_BINDINGS_H_ 6 #define UI_GL_GL_BINDINGS_H_ 7 8 // Includes the platform independent and platform dependent GL headers. 9 // Only include this in cc files. It pulls in system headers, including 10 // the X11 headers on linux, which define all kinds of macros that are 11 // liable to cause conflicts. 12 13 #include <GL/gl.h> 14 #include <GL/glext.h> 15 #include <EGL/egl.h> 16 #include <EGL/eglext.h> 17 18 #include "base/logging.h" 19 #include "base/threading/thread_local.h" 20 #include "build/build_config.h" 21 #include "ui/gl/gl_export.h" 22 23 // The standard OpenGL native extension headers are also included. 24 #if defined(OS_WIN) 25 #include <GL/wglext.h> 26 #elif defined(OS_MACOSX) 27 #include <OpenGL/OpenGL.h> 28 #elif defined(USE_X11) 29 #include <GL/glx.h> 30 #include <GL/glxext.h> 31 32 // Undefine some macros defined by X headers. This is why this file should only 33 // be included in .cc files. 34 #undef Bool 35 #undef None 36 #undef Status 37 #endif 38 39 40 // GLES2 defines not part of Desktop GL 41 // Shader Precision-Specified Types 42 #define GL_LOW_FLOAT 0x8DF0 43 #define GL_MEDIUM_FLOAT 0x8DF1 44 #define GL_HIGH_FLOAT 0x8DF2 45 #define GL_LOW_INT 0x8DF3 46 #define GL_MEDIUM_INT 0x8DF4 47 #define GL_HIGH_INT 0x8DF5 48 #define GL_IMPLEMENTATION_COLOR_READ_TYPE 0x8B9A 49 #define GL_IMPLEMENTATION_COLOR_READ_FORMAT 0x8B9B 50 #define GL_MAX_FRAGMENT_UNIFORM_VECTORS 0x8DFD 51 #define GL_MAX_VERTEX_UNIFORM_VECTORS 0x8DFB 52 #define GL_MAX_VARYING_VECTORS 0x8DFC 53 #define GL_SHADER_BINARY_FORMATS 0x8DF8 54 #define GL_NUM_SHADER_BINARY_FORMATS 0x8DF9 55 #define GL_SHADER_COMPILER 0x8DFA 56 #define GL_RGB565 0x8D62 57 #define GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES 0x8B8B 58 #define GL_RGB8_OES 0x8051 59 #define GL_RGBA8_OES 0x8058 60 #define GL_HALF_FLOAT_OES 0x8D61 61 62 // GL_OES_EGL_image_external 63 #define GL_TEXTURE_EXTERNAL_OES 0x8D65 64 #define GL_SAMPLER_EXTERNAL_OES 0x8D66 65 #define GL_TEXTURE_BINDING_EXTERNAL_OES 0x8D67 66 #define GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES 0x8D68 67 68 // GL_ANGLE_translated_shader_source 69 #define GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE 0x93A0 70 71 // GL_CHROMIUM_flipy 72 #define GL_UNPACK_FLIP_Y_CHROMIUM 0x9240 73 74 #define GL_UNPACK_PREMULTIPLY_ALPHA_CHROMIUM 0x9241 75 #define GL_UNPACK_UNPREMULTIPLY_ALPHA_CHROMIUM 0x9242 76 #define GL_UNPACK_COLORSPACE_CONVERSION_CHROMIUM 0x9243 77 #define GL_BIND_GENERATES_RESOURCE_CHROMIUM 0x9244 78 79 // GL_CHROMIUM_gpu_memory_manager 80 #define GL_TEXTURE_POOL_CHROMIUM 0x6000 81 #define GL_TEXTURE_POOL_MANAGED_CHROMIUM 0x6001 82 #define GL_TEXTURE_POOL_UNMANAGED_CHROMIUM 0x6002 83 84 // GL_ANGLE_pack_reverse_row_order 85 #define GL_PACK_REVERSE_ROW_ORDER_ANGLE 0x93A4 86 87 // GL_ANGLE_texture_usage 88 #define GL_TEXTURE_USAGE_ANGLE 0x93A2 89 #define GL_FRAMEBUFFER_ATTACHMENT_ANGLE 0x93A3 90 91 // GL_EXT_texture_storage 92 #define GL_TEXTURE_IMMUTABLE_FORMAT_EXT 0x912F 93 #define GL_ALPHA8_EXT 0x803C 94 #define GL_LUMINANCE8_EXT 0x8040 95 #define GL_LUMINANCE8_ALPHA8_EXT 0x8045 96 #define GL_RGBA32F_EXT 0x8814 97 #define GL_RGB32F_EXT 0x8815 98 #define GL_ALPHA32F_EXT 0x8816 99 #define GL_LUMINANCE32F_EXT 0x8818 100 #define GL_LUMINANCE_ALPHA32F_EXT 0x8819 101 #define GL_RGBA16F_EXT 0x881A 102 #define GL_RGB16F_EXT 0x881B 103 #define GL_ALPHA16F_EXT 0x881C 104 #define GL_LUMINANCE16F_EXT 0x881E 105 #define GL_LUMINANCE_ALPHA16F_EXT 0x881F 106 #define GL_BGRA8_EXT 0x93A1 107 108 // GL_ANGLE_instanced_arrays 109 #define GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE 0x88FE 110 111 // GL_EXT_occlusion_query_boolean 112 #define GL_ANY_SAMPLES_PASSED_EXT 0x8C2F 113 #define GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT 0x8D6A 114 #define GL_CURRENT_QUERY_EXT 0x8865 115 #define GL_QUERY_RESULT_EXT 0x8866 116 #define GL_QUERY_RESULT_AVAILABLE_EXT 0x8867 117 118 // GL_CHROMIUM_command_buffer_query 119 #define GL_COMMANDS_ISSUED_CHROMIUM 0x84F2 120 121 /* GL_CHROMIUM_get_error_query */ 122 #define GL_GET_ERROR_QUERY_CHROMIUM 0x84F3 123 124 /* GL_CHROMIUM_command_buffer_latency_query */ 125 #define GL_LATENCY_QUERY_CHROMIUM 0x84F4 126 127 /* GL_CHROMIUM_async_pixel_transfers */ 128 #define GL_ASYNC_PIXEL_UNPACK_COMPLETED_CHROMIUM 0x84F5 129 #define GL_ASYNC_PIXEL_PACK_COMPLETED_CHROMIUM 0x84F6 130 131 // GL_CHROMIUM_sync_query 132 #define GL_COMMANDS_COMPLETED_CHROMIUM 0x84F7 133 134 // GL_CHROMIUM_image 135 #define GL_IMAGE_ROWBYTES_CHROMIUM 0x78F0 136 #define GL_IMAGE_MAP_CHROMIUM 0x78F1 137 #define GL_IMAGE_SCANOUT_CHROMIUM 0x78F2 138 139 // GL_OES_texure_3D 140 #define GL_SAMPLER_3D_OES 0x8B5F 141 142 // GL_OES_depth24 143 #define GL_DEPTH_COMPONENT24_OES 0x81A6 144 145 // GL_OES_depth32 146 #define GL_DEPTH_COMPONENT32_OES 0x81A7 147 148 // GL_OES_packed_depth_stencil 149 #ifndef GL_DEPTH24_STENCIL8_OES 150 #define GL_DEPTH24_STENCIL8_OES 0x88F0 151 #endif 152 153 #ifndef GL_DEPTH24_STENCIL8 154 #define GL_DEPTH24_STENCIL8 0x88F0 155 #endif 156 157 // GL_OES_compressed_ETC1_RGB8_texture 158 #define GL_ETC1_RGB8_OES 0x8D64 159 160 // GL_AMD_compressed_ATC_texture 161 #define GL_ATC_RGB_AMD 0x8C92 162 #define GL_ATC_RGBA_EXPLICIT_ALPHA_AMD 0x8C93 163 #define GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD 0x87EE 164 165 // GL_IMG_texture_compression_pvrtc 166 #define GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG 0x8C00 167 #define GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG 0x8C01 168 #define GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG 0x8C02 169 #define GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG 0x8C03 170 171 // GL_OES_vertex_array_object 172 #define GL_VERTEX_ARRAY_BINDING_OES 0x85B5 173 174 // GL_CHROMIUM_pixel_transfer_buffer_object 175 #define GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM 0x78EC 176 #define GL_PIXEL_PACK_TRANSFER_BUFFER_CHROMIUM 0x78ED 177 #define GL_PIXEL_PACK_TRANSFER_BUFFER_BINDING_CHROMIUM 0x78EE 178 #define GL_PIXEL_UNPACK_TRANSFER_BUFFER_BINDING_CHROMIUM 0x78EF 179 180 /* GL_EXT_discard_framebuffer */ 181 #ifndef GL_EXT_discard_framebuffer 182 #define GL_COLOR_EXT 0x1800 183 #define GL_DEPTH_EXT 0x1801 184 #define GL_STENCIL_EXT 0x1802 185 #endif 186 187 // GL_ARB_get_program_binary 188 #define PROGRAM_BINARY_RETRIEVABLE_HINT 0x8257 189 // GL_OES_get_program_binary 190 #define GL_PROGRAM_BINARY_LENGTH_OES 0x8741 191 #define GL_NUM_PROGRAM_BINARY_FORMATS_OES 0x87FE 192 #define GL_PROGRAM_BINARY_FORMATS_OES 0x87FF 193 194 #ifndef GL_EXT_multisampled_render_to_texture 195 #define GL_RENDERBUFFER_SAMPLES_EXT 0x8CAB 196 #define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT 0x8D56 197 #define GL_MAX_SAMPLES_EXT 0x8D57 198 #define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_SAMPLES_EXT 0x8D6C 199 #endif 200 201 #ifndef GL_IMG_multisampled_render_to_texture 202 #define GL_RENDERBUFFER_SAMPLES_IMG 0x9133 203 #define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_IMG 0x9134 204 #define GL_MAX_SAMPLES_IMG 0x9135 205 #define GL_TEXTURE_SAMPLES_IMG 0x9136 206 #endif 207 208 #define GL_GLEXT_PROTOTYPES 1 209 210 #if defined(OS_WIN) 211 #define GL_BINDING_CALL WINAPI 212 #else 213 #define GL_BINDING_CALL 214 #endif 215 216 #define GL_SERVICE_LOG(args) DLOG(INFO) << args; 217 #if defined(NDEBUG) 218 #define GL_SERVICE_LOG_CODE_BLOCK(code) 219 #else 220 #define GL_SERVICE_LOG_CODE_BLOCK(code) code 221 #endif 222 223 // Forward declare OSMesa types. 224 typedef struct osmesa_context *OSMesaContext; 225 typedef void (*OSMESAproc)(); 226 227 // Forward declare EGL types. 228 typedef uint64 EGLuint64CHROMIUM; 229 230 #include "gl_bindings_autogen_gl.h" 231 #include "gl_bindings_autogen_osmesa.h" 232 233 #if defined(OS_WIN) 234 #include "gl_bindings_autogen_egl.h" 235 #include "gl_bindings_autogen_wgl.h" 236 #elif defined(USE_X11) 237 #include "gl_bindings_autogen_egl.h" 238 #include "gl_bindings_autogen_glx.h" 239 #elif defined(USE_OZONE) 240 #include "gl_bindings_autogen_egl.h" 241 #elif defined(OS_ANDROID) 242 #include "gl_bindings_autogen_egl.h" 243 #endif 244 245 namespace gfx { 246 247 struct GL_EXPORT DriverGL { 248 void InitializeStaticBindings(); 249 void InitializeCustomDynamicBindings(GLContext* context); 250 void InitializeDebugBindings(); 251 void InitializeNullDrawBindings(); 252 // TODO(danakj): Remove this when all test suites are using null-draw. 253 bool HasInitializedNullDrawBindings(); 254 bool SetNullDrawBindingsEnabled(bool enabled); 255 void ClearBindings(); 256 257 ProcsGL fn; 258 ProcsGL orig_fn; 259 ProcsGL debug_fn; 260 ExtensionsGL ext; 261 bool null_draw_bindings_enabled; 262 263 private: 264 void InitializeDynamicBindings(GLContext* context); 265 }; 266 267 struct GL_EXPORT DriverOSMESA { 268 void InitializeStaticBindings(); 269 void InitializeDynamicBindings(GLContext* context); 270 void InitializeDebugBindings(); 271 void ClearBindings(); 272 273 ProcsOSMESA fn; 274 ProcsOSMESA debug_fn; 275 ExtensionsOSMESA ext; 276 }; 277 278 #if defined(OS_WIN) 279 struct GL_EXPORT DriverWGL { 280 void InitializeStaticBindings(); 281 void InitializeDynamicBindings(GLContext* context); 282 void InitializeDebugBindings(); 283 void ClearBindings(); 284 285 ProcsWGL fn; 286 ProcsWGL debug_fn; 287 ExtensionsWGL ext; 288 }; 289 #endif 290 291 #if defined(OS_WIN) || defined(USE_X11) || defined(OS_ANDROID) || defined(USE_OZONE) 292 struct GL_EXPORT DriverEGL { 293 void InitializeStaticBindings(); 294 void InitializeDynamicBindings(GLContext* context); 295 void InitializeDebugBindings(); 296 void ClearBindings(); 297 298 ProcsEGL fn; 299 ProcsEGL debug_fn; 300 ExtensionsEGL ext; 301 }; 302 #endif 303 304 #if defined(USE_X11) 305 struct GL_EXPORT DriverGLX { 306 void InitializeStaticBindings(); 307 void InitializeDynamicBindings(GLContext* context); 308 void InitializeDebugBindings(); 309 void ClearBindings(); 310 311 ProcsGLX fn; 312 ProcsGLX debug_fn; 313 ExtensionsGLX ext; 314 }; 315 #endif 316 317 // This #define is here to support autogenerated code. 318 #define g_current_gl_context g_current_gl_context_tls->Get() 319 GL_EXPORT extern base::ThreadLocalPointer<GLApi>* g_current_gl_context_tls; 320 321 GL_EXPORT extern OSMESAApi* g_current_osmesa_context; 322 GL_EXPORT extern DriverGL g_driver_gl; 323 GL_EXPORT extern DriverOSMESA g_driver_osmesa; 324 325 #if defined(OS_WIN) 326 327 GL_EXPORT extern EGLApi* g_current_egl_context; 328 GL_EXPORT extern WGLApi* g_current_wgl_context; 329 GL_EXPORT extern DriverEGL g_driver_egl; 330 GL_EXPORT extern DriverWGL g_driver_wgl; 331 332 #elif defined(USE_X11) 333 334 GL_EXPORT extern EGLApi* g_current_egl_context; 335 GL_EXPORT extern GLXApi* g_current_glx_context; 336 GL_EXPORT extern DriverEGL g_driver_egl; 337 GL_EXPORT extern DriverGLX g_driver_glx; 338 339 #elif defined(USE_OZONE) 340 341 GL_EXPORT extern EGLApi* g_current_egl_context; 342 GL_EXPORT extern DriverEGL g_driver_egl; 343 344 #elif defined(OS_ANDROID) 345 346 GL_EXPORT extern EGLApi* g_current_egl_context; 347 GL_EXPORT extern DriverEGL g_driver_egl; 348 349 #endif 350 351 } // namespace gfx 352 353 #endif // UI_GL_GL_BINDINGS_H_ 354
