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 78 // GL_CHROMIUM_gpu_memory_manager 79 #define GL_TEXTURE_POOL_CHROMIUM 0x6000 80 #define GL_TEXTURE_POOL_MANAGED_CHROMIUM 0x6001 81 #define GL_TEXTURE_POOL_UNMANAGED_CHROMIUM 0x6002 82 83 // GL_ANGLE_pack_reverse_row_order 84 #define GL_PACK_REVERSE_ROW_ORDER_ANGLE 0x93A4 85 86 // GL_ANGLE_texture_usage 87 #define GL_TEXTURE_USAGE_ANGLE 0x93A2 88 #define GL_FRAMEBUFFER_ATTACHMENT_ANGLE 0x93A3 89 90 // GL_EXT_texture_storage 91 #define GL_TEXTURE_IMMUTABLE_FORMAT_EXT 0x912F 92 #define GL_ALPHA8_EXT 0x803C 93 #define GL_LUMINANCE8_EXT 0x8040 94 #define GL_LUMINANCE8_ALPHA8_EXT 0x8045 95 #define GL_RGBA32F_EXT 0x8814 96 #define GL_RGB32F_EXT 0x8815 97 #define GL_ALPHA32F_EXT 0x8816 98 #define GL_LUMINANCE32F_EXT 0x8818 99 #define GL_LUMINANCE_ALPHA32F_EXT 0x8819 100 #define GL_RGBA16F_EXT 0x881A 101 #define GL_RGB16F_EXT 0x881B 102 #define GL_ALPHA16F_EXT 0x881C 103 #define GL_LUMINANCE16F_EXT 0x881E 104 #define GL_LUMINANCE_ALPHA16F_EXT 0x881F 105 #define GL_BGRA8_EXT 0x93A1 106 107 // GL_ANGLE_instanced_arrays 108 #define GL_VERTEX_ATTRIB_ARRAY_DIVISOR_ANGLE 0x88FE 109 110 // GL_EXT_occlusion_query_boolean 111 #define GL_ANY_SAMPLES_PASSED_EXT 0x8C2F 112 #define GL_ANY_SAMPLES_PASSED_CONSERVATIVE_EXT 0x8D6A 113 #define GL_CURRENT_QUERY_EXT 0x8865 114 #define GL_QUERY_RESULT_EXT 0x8866 115 #define GL_QUERY_RESULT_AVAILABLE_EXT 0x8867 116 117 // GL_CHROMIUM_command_buffer_query 118 #define GL_COMMANDS_ISSUED_CHROMIUM 0x84F2 119 120 /* GL_CHROMIUM_get_error_query */ 121 #define GL_GET_ERROR_QUERY_CHROMIUM 0x84F3 122 123 /* GL_CHROMIUM_command_buffer_latency_query */ 124 #define GL_LATENCY_QUERY_CHROMIUM 0x84F4 125 126 /* GL_CHROMIUM_async_pixel_transfers */ 127 #define GL_ASYNC_PIXEL_TRANSFERS_COMPLETED_CHROMIUM 0x84F5 128 #define GL_ASYNC_READ_PIXELS_COMPLETED_CHROMIUM 0x84F6 129 130 // GL_OES_texure_3D 131 #define GL_SAMPLER_3D_OES 0x8B5F 132 133 // GL_OES_depth24 134 #define GL_DEPTH_COMPONENT24_OES 0x81A6 135 136 // GL_OES_depth32 137 #define GL_DEPTH_COMPONENT32_OES 0x81A7 138 139 // GL_OES_packed_depth_stencil 140 #ifndef GL_DEPTH24_STENCIL8_OES 141 #define GL_DEPTH24_STENCIL8_OES 0x88F0 142 #endif 143 144 #ifndef GL_DEPTH24_STENCIL8 145 #define GL_DEPTH24_STENCIL8 0x88F0 146 #endif 147 148 // GL_OES_compressed_ETC1_RGB8_texture 149 #define GL_ETC1_RGB8_OES 0x8D64 150 151 // GL_OES_vertex_array_object 152 #define GL_VERTEX_ARRAY_BINDING_OES 0x85B5 153 154 // GL_CHROMIUM_pixel_transfer_buffer_object 155 #define GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM 0x78EC 156 #define GL_PIXEL_PACK_TRANSFER_BUFFER_CHROMIUM 0x78ED 157 #define GL_PIXEL_PACK_TRANSFER_BUFFER_BINDING_CHROMIUM 0x78EE 158 #define GL_PIXEL_UNPACK_TRANSFER_BUFFER_BINDING_CHROMIUM 0x78EF 159 160 /* GL_EXT_discard_framebuffer */ 161 #ifndef GL_EXT_discard_framebuffer 162 #define GL_COLOR_EXT 0x1800 163 #define GL_DEPTH_EXT 0x1801 164 #define GL_STENCIL_EXT 0x1802 165 #endif 166 167 // GL_ARB_get_program_binary 168 #define PROGRAM_BINARY_RETRIEVABLE_HINT 0x8257 169 // GL_OES_get_program_binary 170 #define GL_PROGRAM_BINARY_LENGTH_OES 0x8741 171 #define GL_NUM_PROGRAM_BINARY_FORMATS_OES 0x87FE 172 #define GL_PROGRAM_BINARY_FORMATS_OES 0x87FF 173 174 #ifndef GL_EXT_multisampled_render_to_texture 175 #define GL_RENDERBUFFER_SAMPLES_EXT 0x8CAB 176 #define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT 0x8D56 177 #define GL_MAX_SAMPLES_EXT 0x8D57 178 #define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_SAMPLES_EXT 0x8D6C 179 #endif 180 181 #ifndef GL_IMG_multisampled_render_to_texture 182 #define GL_RENDERBUFFER_SAMPLES_IMG 0x9133 183 #define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_IMG 0x9134 184 #define GL_MAX_SAMPLES_IMG 0x9135 185 #define GL_TEXTURE_SAMPLES_IMG 0x9136 186 #endif 187 188 #define GL_GLEXT_PROTOTYPES 1 189 190 #if defined(OS_WIN) 191 #define GL_BINDING_CALL WINAPI 192 #else 193 #define GL_BINDING_CALL 194 #endif 195 196 #define GL_SERVICE_LOG(args) DLOG(INFO) << args; 197 #if defined(NDEBUG) 198 #define GL_SERVICE_LOG_CODE_BLOCK(code) 199 #else 200 #define GL_SERVICE_LOG_CODE_BLOCK(code) code 201 #endif 202 203 // Forward declare OSMesa types. 204 typedef struct osmesa_context *OSMesaContext; 205 typedef void (*OSMESAproc)(); 206 207 // Forward declare EGL types. 208 typedef uint64 EGLuint64CHROMIUM; 209 210 #include "gl_bindings_autogen_gl.h" 211 #include "gl_bindings_autogen_osmesa.h" 212 213 #if defined(OS_WIN) 214 #include "gl_bindings_autogen_egl.h" 215 #include "gl_bindings_autogen_wgl.h" 216 #elif defined(USE_X11) 217 #include "gl_bindings_autogen_egl.h" 218 #include "gl_bindings_autogen_glx.h" 219 #elif defined(USE_OZONE) 220 #include "gl_bindings_autogen_egl.h" 221 #elif defined(OS_ANDROID) 222 #include "gl_bindings_autogen_egl.h" 223 #endif 224 225 namespace gfx { 226 227 struct GL_EXPORT DriverGL { 228 void Initialize(); 229 void InitializeExtensions(GLContext* context); 230 void InitializeDebugBindings(); 231 void ClearBindings(); 232 void UpdateDebugExtensionBindings(); 233 234 ProcsGL fn; 235 ProcsGL orig_fn; 236 ProcsGL debug_fn; 237 ExtensionsGL ext; 238 239 private: 240 void InitializeBindings(); 241 void InitializeExtensionBindings(GLContext* context); 242 }; 243 244 struct GL_EXPORT DriverOSMESA { 245 void InitializeBindings(); 246 void InitializeExtensionBindings(GLContext* context); 247 void InitializeDebugBindings(); 248 void ClearBindings(); 249 void UpdateDebugExtensionBindings(); 250 251 ProcsOSMESA fn; 252 ProcsOSMESA debug_fn; 253 ExtensionsOSMESA ext; 254 }; 255 256 #if defined(OS_WIN) 257 struct GL_EXPORT DriverWGL { 258 void InitializeBindings(); 259 void InitializeExtensionBindings(GLContext* context); 260 void InitializeDebugBindings(); 261 void ClearBindings(); 262 void UpdateDebugExtensionBindings(); 263 264 ProcsWGL fn; 265 ProcsWGL debug_fn; 266 ExtensionsWGL ext; 267 }; 268 #endif 269 270 #if defined(OS_WIN) || defined(USE_X11) || defined(OS_ANDROID) || defined(USE_OZONE) 271 struct GL_EXPORT DriverEGL { 272 void InitializeBindings(); 273 void InitializeExtensionBindings(GLContext* context); 274 void InitializeDebugBindings(); 275 void ClearBindings(); 276 void UpdateDebugExtensionBindings(); 277 278 ProcsEGL fn; 279 ProcsEGL debug_fn; 280 ExtensionsEGL ext; 281 }; 282 #endif 283 284 #if defined(USE_X11) 285 struct GL_EXPORT DriverGLX { 286 void InitializeBindings(); 287 void InitializeExtensionBindings(GLContext* context); 288 void InitializeDebugBindings(); 289 void ClearBindings(); 290 void UpdateDebugExtensionBindings(); 291 292 ProcsGLX fn; 293 ProcsGLX debug_fn; 294 ExtensionsGLX ext; 295 }; 296 #endif 297 298 // This #define is here to support autogenerated code. 299 #define g_current_gl_context g_current_gl_context_tls->Get() 300 GL_EXPORT extern base::ThreadLocalPointer<GLApi>* g_current_gl_context_tls; 301 302 GL_EXPORT extern OSMESAApi* g_current_osmesa_context; 303 GL_EXPORT extern DriverGL g_driver_gl; 304 GL_EXPORT extern DriverOSMESA g_driver_osmesa; 305 306 #if defined(OS_WIN) 307 308 GL_EXPORT extern EGLApi* g_current_egl_context; 309 GL_EXPORT extern WGLApi* g_current_wgl_context; 310 GL_EXPORT extern DriverEGL g_driver_egl; 311 GL_EXPORT extern DriverWGL g_driver_wgl; 312 313 #elif defined(USE_X11) 314 315 GL_EXPORT extern EGLApi* g_current_egl_context; 316 GL_EXPORT extern GLXApi* g_current_glx_context; 317 GL_EXPORT extern DriverEGL g_driver_egl; 318 GL_EXPORT extern DriverGLX g_driver_glx; 319 320 #elif defined(USE_OZONE) 321 322 GL_EXPORT extern EGLApi* g_current_egl_context; 323 GL_EXPORT extern DriverEGL g_driver_egl; 324 325 #elif defined(OS_ANDROID) 326 327 GL_EXPORT extern EGLApi* g_current_egl_context; 328 GL_EXPORT extern DriverEGL g_driver_egl; 329 330 #endif 331 332 // Find an entry point to the mock GL implementation. 333 void* GL_BINDING_CALL GetMockGLProcAddress(const char* name); 334 335 } // namespace gfx 336 337 #endif // UI_GL_GL_BINDINGS_H_ 338
