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| 1 | 1 |
| 2 /* | 2 /* |
| 3 * Copyright 2011 Google Inc. | 3 * Copyright 2011 Google Inc. |
| 4 * | 4 * |
| 5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
| 6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
| 7 */ | 7 */ |
| 8 | 8 |
| 9 #include "gl/GrGLExtensions.h" | 9 #include "gl/GrGLAssembleInterface.h" |
| 10 #include "gl/GrGLInterface.h" | |
| 11 #include "../GrGLUtil.h" | 10 #include "../GrGLUtil.h" |
| 12 | 11 |
| 13 #define GL_GLEXT_PROTOTYPES | |
| 14 #include "osmesa_wrapper.h" | 12 #include "osmesa_wrapper.h" |
| 15 | 13 |
| 16 #define GET_PROC(F) interface->fFunctions.f ## F = (GrGL ## F ## Proc) \ | 14 static GrGLFuncPtr osmesa_get(void* ctx, const char name[]) { |
| 17 OSMesaGetProcAddress("gl" #F); | 15 SkASSERT(NULL == ctx); |
| 18 #define GET_PROC_SUFFIX(F, S) interface->fFunctions.f ## F = (GrGL ## F ## Proc)
\ | 16 SkASSERT(NULL != OSMesaGetCurrentContext()); |
| 19 OSMesaGetProcAddress("gl" #F #S); | 17 return OSMesaGetProcAddress(name); |
| 20 | 18 } |
| 21 // We use OSMesaGetProcAddress for every gl function to avoid accidentally using | |
| 22 // non-Mesa gl functions. | |
| 23 | 19 |
| 24 const GrGLInterface* GrGLCreateMesaInterface() { | 20 const GrGLInterface* GrGLCreateMesaInterface() { |
| 25 if (NULL == OSMesaGetCurrentContext()) { | 21 if (NULL == OSMesaGetCurrentContext()) { |
| 26 return NULL; | 22 return NULL; |
| 27 } | 23 } |
| 28 | 24 return GrGLAssembleGLInterface(NULL, osmesa_get); |
| 29 GrGLGetStringProc getString = (GrGLGetStringProc) OSMesaGetProcAddress("glGe
tString"); | |
| 30 GrGLGetStringiProc getStringi = (GrGLGetStringiProc) OSMesaGetProcAddress("g
lGetStringi"); | |
| 31 GrGLGetIntegervProc getIntegerv = | |
| 32 (GrGLGetIntegervProc) OSMesaGetProcAddress("glGetIntegerv"); | |
| 33 | |
| 34 GrGLExtensions extensions; | |
| 35 if (!extensions.init(kGL_GrGLStandard, getString, getStringi, getIntegerv))
{ | |
| 36 return NULL; | |
| 37 } | |
| 38 | |
| 39 const char* versionString = (const char*) getString(GL_VERSION); | |
| 40 GrGLVersion glVer = GrGLGetVersionFromString(versionString); | |
| 41 | |
| 42 if (glVer < GR_GL_VER(1,5)) { | |
| 43 // We must have array and element_array buffer objects. | |
| 44 return NULL; | |
| 45 } | |
| 46 GrGLInterface* interface = SkNEW(GrGLInterface()); | |
| 47 | |
| 48 GET_PROC(ActiveTexture); | |
| 49 GET_PROC(BeginQuery); | |
| 50 GET_PROC(AttachShader); | |
| 51 GET_PROC(BindAttribLocation); | |
| 52 GET_PROC(BindBuffer); | |
| 53 GET_PROC(BindFragDataLocation); | |
| 54 GET_PROC(BindTexture); | |
| 55 GET_PROC(BlendFunc); | |
| 56 | |
| 57 if (glVer >= GR_GL_VER(1,4) || | |
| 58 extensions.has("GL_ARB_imaging") || | |
| 59 extensions.has("GL_EXT_blend_color")) { | |
| 60 GET_PROC(BlendColor); | |
| 61 } | |
| 62 | |
| 63 GET_PROC(BufferData); | |
| 64 GET_PROC(BufferSubData); | |
| 65 GET_PROC(Clear); | |
| 66 GET_PROC(ClearColor); | |
| 67 GET_PROC(ClearStencil); | |
| 68 GET_PROC(ColorMask); | |
| 69 GET_PROC(CompileShader); | |
| 70 GET_PROC(CompressedTexImage2D); | |
| 71 GET_PROC(CopyTexSubImage2D); | |
| 72 GET_PROC(CreateProgram); | |
| 73 GET_PROC(CreateShader); | |
| 74 GET_PROC(CullFace); | |
| 75 GET_PROC(DeleteBuffers); | |
| 76 GET_PROC(DeleteProgram); | |
| 77 GET_PROC(DeleteQueries); | |
| 78 GET_PROC(DeleteShader); | |
| 79 GET_PROC(DeleteTextures); | |
| 80 GET_PROC(DepthMask); | |
| 81 GET_PROC(Disable); | |
| 82 GET_PROC(DisableVertexAttribArray); | |
| 83 GET_PROC(DrawArrays); | |
| 84 GET_PROC(DrawBuffer); | |
| 85 GET_PROC(DrawBuffers); | |
| 86 GET_PROC(DrawElements); | |
| 87 GET_PROC(Enable); | |
| 88 GET_PROC(EnableVertexAttribArray); | |
| 89 GET_PROC(EndQuery); | |
| 90 GET_PROC(Finish); | |
| 91 GET_PROC(Flush); | |
| 92 GET_PROC(FrontFace); | |
| 93 GET_PROC(GenBuffers); | |
| 94 GET_PROC(GenerateMipmap); | |
| 95 GET_PROC(GenQueries); | |
| 96 GET_PROC(GetBufferParameteriv); | |
| 97 GET_PROC(GetError); | |
| 98 GET_PROC(GetIntegerv); | |
| 99 GET_PROC(GetProgramInfoLog); | |
| 100 GET_PROC(GetProgramiv); | |
| 101 if (glVer >= GR_GL_VER(3,3) || extensions.has("GL_ARB_timer_query")) { | |
| 102 GET_PROC(GetQueryObjecti64v); | |
| 103 GET_PROC(GetQueryObjectui64v) | |
| 104 GET_PROC(QueryCounter); | |
| 105 } else if (extensions.has("GL_EXT_timer_query")) { | |
| 106 GET_PROC_SUFFIX(GetQueryObjecti64v, EXT); | |
| 107 GET_PROC_SUFFIX(GetQueryObjectui64v, EXT); | |
| 108 } | |
| 109 GET_PROC(GetQueryObjectiv); | |
| 110 GET_PROC(GetQueryObjectuiv); | |
| 111 GET_PROC(GetQueryiv); | |
| 112 GET_PROC(GetShaderInfoLog); | |
| 113 GET_PROC(GetShaderiv); | |
| 114 GET_PROC(GetString); | |
| 115 GET_PROC(GetStringi); | |
| 116 GET_PROC(GetTexLevelParameteriv); | |
| 117 GET_PROC(GenTextures); | |
| 118 GET_PROC(GetUniformLocation); | |
| 119 GET_PROC(LineWidth); | |
| 120 GET_PROC(LinkProgram); | |
| 121 GET_PROC(MapBuffer); | |
| 122 if (extensions.has("GL_EXT_direct_state_access")) { | |
| 123 GET_PROC_SUFFIX(MatrixLoadf, EXT); | |
| 124 GET_PROC_SUFFIX(MatrixLoadIdentity, EXT); | |
| 125 } | |
| 126 GET_PROC(PixelStorei); | |
| 127 GET_PROC(ReadBuffer); | |
| 128 GET_PROC(ReadPixels); | |
| 129 GET_PROC(Scissor); | |
| 130 GET_PROC(ShaderSource); | |
| 131 GET_PROC(StencilFunc); | |
| 132 GET_PROC(StencilFuncSeparate); | |
| 133 GET_PROC(StencilMask); | |
| 134 GET_PROC(StencilMaskSeparate); | |
| 135 GET_PROC(StencilOp); | |
| 136 GET_PROC(StencilOpSeparate); | |
| 137 GET_PROC(TexImage2D) | |
| 138 GET_PROC(TexParameteri); | |
| 139 GET_PROC(TexParameteriv); | |
| 140 GET_PROC(TexStorage2D); | |
| 141 if (NULL == interface->fFunctions.fTexStorage2D) { | |
| 142 GET_PROC_SUFFIX(TexStorage2D, EXT); | |
| 143 } | |
| 144 GET_PROC(TexSubImage2D); | |
| 145 GET_PROC(Uniform1f); | |
| 146 GET_PROC(Uniform1i); | |
| 147 GET_PROC(Uniform1fv); | |
| 148 GET_PROC(Uniform1iv); | |
| 149 GET_PROC(Uniform2f); | |
| 150 GET_PROC(Uniform2i); | |
| 151 GET_PROC(Uniform2fv); | |
| 152 GET_PROC(Uniform2iv); | |
| 153 GET_PROC(Uniform3f); | |
| 154 GET_PROC(Uniform3i); | |
| 155 GET_PROC(Uniform3fv); | |
| 156 GET_PROC(Uniform3iv); | |
| 157 GET_PROC(Uniform4f); | |
| 158 GET_PROC(Uniform4i); | |
| 159 GET_PROC(Uniform4fv); | |
| 160 GET_PROC(Uniform4iv); | |
| 161 GET_PROC(UniformMatrix2fv); | |
| 162 GET_PROC(UniformMatrix3fv); | |
| 163 GET_PROC(UniformMatrix4fv); | |
| 164 GET_PROC(UnmapBuffer); | |
| 165 GET_PROC(UseProgram); | |
| 166 GET_PROC(VertexAttrib4fv); | |
| 167 GET_PROC(VertexAttribPointer); | |
| 168 GET_PROC(Viewport); | |
| 169 | |
| 170 if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_vertex_array_object"))
{ | |
| 171 // no ARB suffix for GL_ARB_vertex_array_object | |
| 172 GET_PROC(BindVertexArray); | |
| 173 GET_PROC(DeleteVertexArrays); | |
| 174 GET_PROC(GenVertexArrays); | |
| 175 } | |
| 176 | |
| 177 // First look for GL3.0 FBO or GL_ARB_framebuffer_object (same since | |
| 178 // GL_ARB_framebuffer_object doesn't use ARB suffix.) | |
| 179 if (glVer >= GR_GL_VER(3,0) || extensions.has("GL_ARB_framebuffer_object"))
{ | |
| 180 GET_PROC(GenFramebuffers); | |
| 181 GET_PROC(GetFramebufferAttachmentParameteriv); | |
| 182 GET_PROC(GetRenderbufferParameteriv); | |
| 183 GET_PROC(BindFramebuffer); | |
| 184 GET_PROC(FramebufferTexture2D); | |
| 185 GET_PROC(CheckFramebufferStatus); | |
| 186 GET_PROC(DeleteFramebuffers); | |
| 187 GET_PROC(RenderbufferStorage); | |
| 188 GET_PROC(GenRenderbuffers); | |
| 189 GET_PROC(DeleteRenderbuffers); | |
| 190 GET_PROC(FramebufferRenderbuffer); | |
| 191 GET_PROC(BindRenderbuffer); | |
| 192 GET_PROC(RenderbufferStorageMultisample); | |
| 193 GET_PROC(BlitFramebuffer); | |
| 194 } else if (extensions.has("GL_EXT_framebuffer_object")) { | |
| 195 GET_PROC_SUFFIX(GenFramebuffers, EXT); | |
| 196 GET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT); | |
| 197 GET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT); | |
| 198 GET_PROC_SUFFIX(BindFramebuffer, EXT); | |
| 199 GET_PROC_SUFFIX(FramebufferTexture2D, EXT); | |
| 200 GET_PROC_SUFFIX(CheckFramebufferStatus, EXT); | |
| 201 GET_PROC_SUFFIX(DeleteFramebuffers, EXT); | |
| 202 GET_PROC_SUFFIX(RenderbufferStorage, EXT); | |
| 203 GET_PROC_SUFFIX(GenRenderbuffers, EXT); | |
| 204 GET_PROC_SUFFIX(DeleteRenderbuffers, EXT); | |
| 205 GET_PROC_SUFFIX(FramebufferRenderbuffer, EXT); | |
| 206 GET_PROC_SUFFIX(BindRenderbuffer, EXT); | |
| 207 if (extensions.has("GL_EXT_framebuffer_multisample")) { | |
| 208 GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT); | |
| 209 } | |
| 210 if (extensions.has("GL_EXT_framebuffer_blit")) { | |
| 211 GET_PROC_SUFFIX(BlitFramebuffer, EXT); | |
| 212 } | |
| 213 } else { | |
| 214 // we must have FBOs | |
| 215 delete interface; | |
| 216 return NULL; | |
| 217 } | |
| 218 GET_PROC(BindFragDataLocationIndexed); | |
| 219 | |
| 220 if (extensions.has("GL_EXT_debug_marker")) { | |
| 221 GET_PROC_SUFFIX(InsertEventMarker, EXT); | |
| 222 GET_PROC_SUFFIX(PopGroupMarker, EXT); | |
| 223 GET_PROC_SUFFIX(PushGroupMarker, EXT); | |
| 224 } | |
| 225 | |
| 226 if (glVer >= GR_GL_VER(4,3) || extensions.has("GL_ARB_invalidate_subdata"))
{ | |
| 227 GET_PROC(InvalidateBufferData); | |
| 228 GET_PROC(InvalidateBufferSubData); | |
| 229 GET_PROC(InvalidateFramebuffer); | |
| 230 GET_PROC(InvalidateSubFramebuffer); | |
| 231 GET_PROC(InvalidateTexImage); | |
| 232 GET_PROC(InvalidateTexSubImage); | |
| 233 } | |
| 234 | |
| 235 interface->fStandard = kGL_GrGLStandard; | |
| 236 interface->fExtensions.swap(&extensions); | |
| 237 | |
| 238 return interface; | |
| 239 } | 25 } |
| OLD | NEW |
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Chromium Code Reviews
Issue 254713006:
Common GrGLInterface OpenGL setup function. (Closed)
Base URL: https://skia.googlesource.com/skia.git@grgl