gl2ext_ppapi.c revision a1401311d1ab56c4ed0a474bd38c108f75cb0cd9
15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "ppapi/lib/gl/gles2/gl2ext_ppapi.h" 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include <stddef.h> 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef GL_FALSE 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define GL_FALSE 0 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // GL_FALSE 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef GL_TRUE 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define GL_TRUE 1 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // GL_TRUE 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(__GNUC__) && !defined(__APPLE__) && !defined(ANDROID) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define PP_TLS __thread 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#elif defined(_MSC_VER) 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define PP_TLS __declspec(thread) 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#else 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// TODO(alokp): Fix all other platforms. 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define PP_TLS 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// TODO(alokp): This will need to be thread-safe if we build gles2 as a 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// shared library. 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static const struct PPB_OpenGLES2* g_gles2_interface = NULL; 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static const struct PPB_OpenGLES2InstancedArrays* 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gles2_instanced_arrays_interface = NULL; 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static const struct PPB_OpenGLES2FramebufferBlit* 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gles2_framebuffer_blit_interface = NULL; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static const struct PPB_OpenGLES2FramebufferMultisample* 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gles2_framebuffer_multisample_interface = NULL; 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static const struct PPB_OpenGLES2ChromiumEnableFeature* 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gles2_chromium_enable_feature_interface = NULL; 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static const struct PPB_OpenGLES2ChromiumMapSub* 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gles2_chromium_map_sub_interface = NULL; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static const struct PPB_OpenGLES2Query* 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gles2_query_interface = NULL; 41a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)static const struct PPB_OpenGLES2DrawBuffers_Dev* 42a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) g_gles2_draw_buffers_interface = NULL; 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// TODO(alokp): Make sure PP_TLS works on all supported platforms. 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static PP_TLS PP_Resource g_current_context = 0; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)GLboolean GL_APIENTRY glInitializePPAPI( 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PPB_GetInterface get_browser_interface) { 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!g_gles2_interface) { 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gles2_interface = get_browser_interface(PPB_OPENGLES2_INTERFACE); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!g_gles2_instanced_arrays_interface) { 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gles2_instanced_arrays_interface = 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) get_browser_interface(PPB_OPENGLES2_INSTANCEDARRAYS_INTERFACE); 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!g_gles2_framebuffer_blit_interface) { 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gles2_framebuffer_blit_interface = 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) get_browser_interface(PPB_OPENGLES2_FRAMEBUFFERBLIT_INTERFACE); 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!g_gles2_framebuffer_multisample_interface) { 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gles2_framebuffer_multisample_interface = 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) get_browser_interface( 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PPB_OPENGLES2_FRAMEBUFFERMULTISAMPLE_INTERFACE); 645821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!g_gles2_chromium_enable_feature_interface) { 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gles2_chromium_enable_feature_interface = 675821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) get_browser_interface( 685821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PPB_OPENGLES2_CHROMIUMENABLEFEATURE_INTERFACE); 695821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 705821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!g_gles2_chromium_map_sub_interface) { 715821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gles2_chromium_map_sub_interface = 725821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) get_browser_interface(PPB_OPENGLES2_CHROMIUMMAPSUB_INTERFACE); 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (!g_gles2_query_interface) { 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gles2_query_interface = 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) get_browser_interface(PPB_OPENGLES2_QUERY_INTERFACE); 775821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 78a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) if (!g_gles2_draw_buffers_interface) { 79a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) g_gles2_draw_buffers_interface = 80a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) get_browser_interface(PPB_OPENGLES2_DRAWBUFFERS_DEV_INTERFACE); 81a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) } 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return g_gles2_interface ? GL_TRUE : GL_FALSE; 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 852a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)GLboolean GL_APIENTRY glTerminatePPAPI(void) { 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_gles2_interface = NULL; 875821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return GL_TRUE; 885821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 895821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)void GL_APIENTRY glSetCurrentContextPPAPI(PP_Resource context) { 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) g_current_context = context; 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 935821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 942a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)PP_Resource GL_APIENTRY glGetCurrentContextPPAPI(void) { 955821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return g_current_context; 965821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 975821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 982a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles)const struct PPB_OpenGLES2* GL_APIENTRY glGetInterfacePPAPI(void) { 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return g_gles2_interface; 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const struct PPB_OpenGLES2InstancedArrays* GL_APIENTRY 1032a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) glGetInstancedArraysInterfacePPAPI(void) { 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return g_gles2_instanced_arrays_interface; 1055821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1065821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1075821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const struct PPB_OpenGLES2FramebufferBlit* GL_APIENTRY 1082a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) glGetFramebufferBlitInterfacePPAPI(void) { 1095821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return g_gles2_framebuffer_blit_interface; 1105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const struct PPB_OpenGLES2FramebufferMultisample* GL_APIENTRY 1132a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) glGetFramebufferMultisampleInterfacePPAPI(void) { 1145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return g_gles2_framebuffer_multisample_interface; 1155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const struct PPB_OpenGLES2ChromiumEnableFeature* GL_APIENTRY 1182a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) glGetChromiumEnableFeatureInterfacePPAPI(void) { 1195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return g_gles2_chromium_enable_feature_interface; 1205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const struct PPB_OpenGLES2ChromiumMapSub* GL_APIENTRY 1232a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) glGetChromiumMapSubInterfacePPAPI(void) { 1245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return g_gles2_chromium_map_sub_interface; 1255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 1265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)const struct PPB_OpenGLES2Query* GL_APIENTRY 1282a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) glGetQueryInterfacePPAPI(void) { 1295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) return g_gles2_query_interface; 1305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 131a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 132a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)const struct PPB_OpenGLES2DrawBuffers_Dev* GL_APIENTRY 133a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) glGetDrawBuffersInterfacePPAPI(void) { 134a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) return g_gles2_draw_buffers_interface; 135a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)} 136