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_CHROMIUM_schedule_overlay_plane 140#define GL_OVERLAY_TRANSFORM_NONE_CHROMIUM 0x9245 141#define GL_OVERLAY_TRANSFORM_FLIP_HORIZONTAL_CHROMIUM 0x9246 142#define GL_OVERLAY_TRANSFORM_FLIP_VERTICAL_CHROMIUM 0x9247 143#define GL_OVERLAY_TRANSFORM_ROTATE_90_CHROMIUM 0x9248 144#define GL_OVERLAY_TRANSFORM_ROTATE_180_CHROMIUM 0x9249 145#define GL_OVERLAY_TRANSFORM_ROTATE_270_CHROMIUM 0x924A 146 147// GL_OES_texure_3D 148#define GL_SAMPLER_3D_OES 0x8B5F 149 150// GL_OES_depth24 151#define GL_DEPTH_COMPONENT24_OES 0x81A6 152 153// GL_OES_depth32 154#define GL_DEPTH_COMPONENT32_OES 0x81A7 155 156// GL_OES_packed_depth_stencil 157#ifndef GL_DEPTH24_STENCIL8_OES 158#define GL_DEPTH24_STENCIL8_OES 0x88F0 159#endif 160 161#ifndef GL_DEPTH24_STENCIL8 162#define GL_DEPTH24_STENCIL8 0x88F0 163#endif 164 165// GL_OES_compressed_ETC1_RGB8_texture 166#define GL_ETC1_RGB8_OES 0x8D64 167 168// GL_AMD_compressed_ATC_texture 169#define GL_ATC_RGB_AMD 0x8C92 170#define GL_ATC_RGBA_EXPLICIT_ALPHA_AMD 0x8C93 171#define GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD 0x87EE 172 173// GL_IMG_texture_compression_pvrtc 174#define GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG 0x8C00 175#define GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG 0x8C01 176#define GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG 0x8C02 177#define GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG 0x8C03 178 179// GL_OES_vertex_array_object 180#define GL_VERTEX_ARRAY_BINDING_OES 0x85B5 181 182// GL_CHROMIUM_pixel_transfer_buffer_object 183#define GL_PIXEL_UNPACK_TRANSFER_BUFFER_CHROMIUM 0x78EC 184#define GL_PIXEL_PACK_TRANSFER_BUFFER_CHROMIUM 0x78ED 185#define GL_PIXEL_PACK_TRANSFER_BUFFER_BINDING_CHROMIUM 0x78EE 186#define GL_PIXEL_UNPACK_TRANSFER_BUFFER_BINDING_CHROMIUM 0x78EF 187 188/* GL_EXT_discard_framebuffer */ 189#ifndef GL_EXT_discard_framebuffer 190#define GL_COLOR_EXT 0x1800 191#define GL_DEPTH_EXT 0x1801 192#define GL_STENCIL_EXT 0x1802 193#endif 194 195// GL_ARB_get_program_binary 196#define PROGRAM_BINARY_RETRIEVABLE_HINT 0x8257 197// GL_OES_get_program_binary 198#define GL_PROGRAM_BINARY_LENGTH_OES 0x8741 199#define GL_NUM_PROGRAM_BINARY_FORMATS_OES 0x87FE 200#define GL_PROGRAM_BINARY_FORMATS_OES 0x87FF 201 202#ifndef GL_EXT_multisampled_render_to_texture 203#define GL_RENDERBUFFER_SAMPLES_EXT 0x8CAB 204#define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT 0x8D56 205#define GL_MAX_SAMPLES_EXT 0x8D57 206#define GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_SAMPLES_EXT 0x8D6C 207#endif 208 209#ifndef GL_IMG_multisampled_render_to_texture 210#define GL_RENDERBUFFER_SAMPLES_IMG 0x9133 211#define GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_IMG 0x9134 212#define GL_MAX_SAMPLES_IMG 0x9135 213#define GL_TEXTURE_SAMPLES_IMG 0x9136 214#endif 215 216#ifndef GL_CHROMIUM_path_rendering 217// These match the corresponding values in NV_path_rendering 218// extension, eg tokens with CHROMIUM replaced with NV. 219#define GL_PATH_MODELVIEW_MATRIX_CHROMIUM 0x0BA6 220#define GL_PATH_PROJECTION_MATRIX_CHROMIUM 0x0BA7 221#define GL_PATH_MODELVIEW_CHROMIUM 0x1700 222#define GL_PATH_PROJECTION_CHROMIUM 0x1701 223#endif 224 225#ifndef GL_EXT_disjoint_timer_query 226#define GL_EXT_disjoint_timer_query 1 227#define GL_QUERY_COUNTER_BITS_EXT 0x8864 228#define GL_TIME_ELAPSED_EXT 0x88BF 229#define GL_TIMESTAMP_EXT 0x8E28 230#define GL_GPU_DISJOINT_EXT 0x8FBB 231#endif 232 233#define GL_GLEXT_PROTOTYPES 1 234 235#if defined(OS_WIN) 236#define GL_BINDING_CALL WINAPI 237#else 238#define GL_BINDING_CALL 239#endif 240 241#define GL_SERVICE_LOG(args) DLOG(INFO) << args; 242#if defined(NDEBUG) 243 #define GL_SERVICE_LOG_CODE_BLOCK(code) 244#else 245 #define GL_SERVICE_LOG_CODE_BLOCK(code) code 246#endif 247 248// Forward declare OSMesa types. 249typedef struct osmesa_context *OSMesaContext; 250typedef void (*OSMESAproc)(); 251 252// Forward declare EGL types. 253typedef uint64 EGLuint64CHROMIUM; 254 255#include "gl_bindings_autogen_gl.h" 256#include "gl_bindings_autogen_osmesa.h" 257 258#if defined(OS_WIN) 259#include "gl_bindings_autogen_egl.h" 260#include "gl_bindings_autogen_wgl.h" 261#elif defined(USE_X11) 262#include "gl_bindings_autogen_egl.h" 263#include "gl_bindings_autogen_glx.h" 264#elif defined(USE_OZONE) 265#include "gl_bindings_autogen_egl.h" 266#elif defined(OS_ANDROID) 267#include "gl_bindings_autogen_egl.h" 268#endif 269 270namespace gfx { 271 272struct GL_EXPORT DriverGL { 273 void InitializeStaticBindings(); 274 void InitializeCustomDynamicBindings(GLContext* context); 275 void InitializeDebugBindings(); 276 void InitializeNullDrawBindings(); 277 // TODO(danakj): Remove this when all test suites are using null-draw. 278 bool HasInitializedNullDrawBindings(); 279 bool SetNullDrawBindingsEnabled(bool enabled); 280 void ClearBindings(); 281 282 ProcsGL fn; 283 ProcsGL orig_fn; 284 ProcsGL debug_fn; 285 ExtensionsGL ext; 286 bool null_draw_bindings_enabled; 287 288 private: 289 void InitializeDynamicBindings(GLContext* context); 290}; 291 292struct GL_EXPORT DriverOSMESA { 293 void InitializeStaticBindings(); 294 void InitializeDynamicBindings(GLContext* context); 295 void InitializeDebugBindings(); 296 void ClearBindings(); 297 298 ProcsOSMESA fn; 299 ProcsOSMESA debug_fn; 300 ExtensionsOSMESA ext; 301}; 302 303#if defined(OS_WIN) 304struct GL_EXPORT DriverWGL { 305 void InitializeStaticBindings(); 306 void InitializeDynamicBindings(GLContext* context); 307 void InitializeDebugBindings(); 308 void ClearBindings(); 309 310 ProcsWGL fn; 311 ProcsWGL debug_fn; 312 ExtensionsWGL ext; 313}; 314#endif 315 316#if defined(OS_WIN) || defined(USE_X11) || defined(OS_ANDROID) || defined(USE_OZONE) 317struct GL_EXPORT DriverEGL { 318 void InitializeStaticBindings(); 319 void InitializeDynamicBindings(GLContext* context); 320 void InitializeDebugBindings(); 321 void ClearBindings(); 322 323 ProcsEGL fn; 324 ProcsEGL debug_fn; 325 ExtensionsEGL ext; 326}; 327#endif 328 329#if defined(USE_X11) 330struct GL_EXPORT DriverGLX { 331 void InitializeStaticBindings(); 332 void InitializeDynamicBindings(GLContext* context); 333 void InitializeDebugBindings(); 334 void ClearBindings(); 335 336 ProcsGLX fn; 337 ProcsGLX debug_fn; 338 ExtensionsGLX ext; 339}; 340#endif 341 342// This #define is here to support autogenerated code. 343#define g_current_gl_context g_current_gl_context_tls->Get() 344GL_EXPORT extern base::ThreadLocalPointer<GLApi>* g_current_gl_context_tls; 345 346GL_EXPORT extern OSMESAApi* g_current_osmesa_context; 347GL_EXPORT extern DriverGL g_driver_gl; 348GL_EXPORT extern DriverOSMESA g_driver_osmesa; 349 350#if defined(OS_WIN) 351 352GL_EXPORT extern EGLApi* g_current_egl_context; 353GL_EXPORT extern WGLApi* g_current_wgl_context; 354GL_EXPORT extern DriverEGL g_driver_egl; 355GL_EXPORT extern DriverWGL g_driver_wgl; 356 357#elif defined(USE_X11) 358 359GL_EXPORT extern EGLApi* g_current_egl_context; 360GL_EXPORT extern GLXApi* g_current_glx_context; 361GL_EXPORT extern DriverEGL g_driver_egl; 362GL_EXPORT extern DriverGLX g_driver_glx; 363 364#elif defined(USE_OZONE) 365 366GL_EXPORT extern EGLApi* g_current_egl_context; 367GL_EXPORT extern DriverEGL g_driver_egl; 368 369#elif defined(OS_ANDROID) 370 371GL_EXPORT extern EGLApi* g_current_egl_context; 372GL_EXPORT extern DriverEGL g_driver_egl; 373 374#endif 375 376} // namespace gfx 377 378#endif // UI_GL_GL_BINDINGS_H_ 379