1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/skia/trunk/src/gpu/gl/mac/GrGLCreateNativeInterface_mac.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,247 @@
1.4 +
1.5 +/*
1.6 + * Copyright 2011 Google Inc.
1.7 + *
1.8 + * Use of this source code is governed by a BSD-style license that can be
1.9 + * found in the LICENSE file.
1.10 + */
1.11 +
1.12 +
1.13 +#include "gl/GrGLInterface.h"
1.14 +#include "../GrGLUtil.h"
1.15 +
1.16 +#include <dlfcn.h>
1.17 +
1.18 +// We get the proc addresss of all GL functions dynamically because we sometimes link against
1.19 +// alternative GL implementations (e.g. MESA) in addition to the native GL implementation.
1.20 +class GLLoader {
1.21 +public:
1.22 + GLLoader() {
1.23 + fLibrary = dlopen(
1.24 + "/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib",
1.25 + RTLD_LAZY);
1.26 + }
1.27 + ~GLLoader() {
1.28 + if (NULL != fLibrary) {
1.29 + dlclose(fLibrary);
1.30 + }
1.31 + }
1.32 + void* handle() {
1.33 + return NULL == fLibrary ? RTLD_DEFAULT : fLibrary;
1.34 + }
1.35 +private:
1.36 + void* fLibrary;
1.37 +};
1.38 +
1.39 +static void* GetProcAddress(const char* name) {
1.40 + static GLLoader gLoader;
1.41 + return dlsym(gLoader.handle(), name);
1.42 +}
1.43 +
1.44 +#define GET_PROC(name) (interface->fFunctions.f ## name = ((GrGL ## name ## Proc) GetProcAddress("gl" #name)))
1.45 +#define GET_PROC_SUFFIX(name, suffix) (interface->fFunctions.f ## name = ((GrGL ## name ## Proc) GetProcAddress("gl" #name #suffix)))
1.46 +
1.47 +const GrGLInterface* GrGLCreateNativeInterface() {
1.48 +
1.49 + GrGLGetStringProc glGetString = (GrGLGetStringProc) GetProcAddress("glGetString");
1.50 + GrGLGetStringiProc glGetStringi = (GrGLGetStringiProc) GetProcAddress("glGetStringi");
1.51 + GrGLGetIntegervProc glGetIntegerv = (GrGLGetIntegervProc) GetProcAddress("glGetIntegerv");
1.52 +
1.53 + const char* verStr = (const char*) glGetString(GR_GL_VERSION);
1.54 + GrGLVersion ver = GrGLGetVersionFromString(verStr);
1.55 + GrGLExtensions extensions;
1.56 + if (!extensions.init(kGL_GrGLStandard, glGetString, glGetStringi, glGetIntegerv)) {
1.57 + return NULL;
1.58 + }
1.59 +
1.60 + GrGLInterface* interface = SkNEW(GrGLInterface);
1.61 + interface->fStandard = kGL_GrGLStandard;
1.62 +
1.63 + GET_PROC(ActiveTexture);
1.64 + GET_PROC(AttachShader);
1.65 + GET_PROC(BeginQuery);
1.66 + GET_PROC(BindAttribLocation);
1.67 + GET_PROC(BindBuffer);
1.68 + if (ver >= GR_GL_VER(3,0)) {
1.69 + GET_PROC(BindFragDataLocation);
1.70 + }
1.71 + GET_PROC(BindTexture);
1.72 + GET_PROC(BlendFunc);
1.73 +
1.74 + if (ver >= GR_GL_VER(1,4) ||
1.75 + extensions.has("GL_ARB_imaging") ||
1.76 + extensions.has("GL_EXT_blend_color")) {
1.77 + GET_PROC(BlendColor);
1.78 + }
1.79 +
1.80 + GET_PROC(BufferData);
1.81 + GET_PROC(BufferSubData);
1.82 + GET_PROC(Clear);
1.83 + GET_PROC(ClearColor);
1.84 + GET_PROC(ClearStencil);
1.85 + GET_PROC(ColorMask);
1.86 + GET_PROC(CompileShader);
1.87 + GET_PROC(CompressedTexImage2D);
1.88 + GET_PROC(CopyTexSubImage2D);
1.89 + GET_PROC(CreateProgram);
1.90 + GET_PROC(CreateShader);
1.91 + GET_PROC(CullFace);
1.92 + GET_PROC(DeleteBuffers);
1.93 + GET_PROC(DeleteProgram);
1.94 + GET_PROC(DeleteQueries);
1.95 + GET_PROC(DeleteShader);
1.96 + GET_PROC(DeleteTextures);
1.97 + GET_PROC(DepthMask);
1.98 + GET_PROC(Disable);
1.99 + GET_PROC(DisableVertexAttribArray);
1.100 + GET_PROC(DrawArrays);
1.101 + GET_PROC(DrawBuffer);
1.102 + GET_PROC(DrawBuffers);
1.103 + GET_PROC(DrawElements);
1.104 + GET_PROC(Enable);
1.105 + GET_PROC(EnableVertexAttribArray);
1.106 + GET_PROC(EndQuery);
1.107 + GET_PROC(Finish);
1.108 + GET_PROC(Flush);
1.109 + GET_PROC(FrontFace);
1.110 + GET_PROC(GenBuffers);
1.111 + GET_PROC(GenerateMipmap);
1.112 + GET_PROC(GenQueries);
1.113 + GET_PROC(GetBufferParameteriv);
1.114 + GET_PROC(GetError);
1.115 + GET_PROC(GetIntegerv);
1.116 + GET_PROC(GetProgramInfoLog);
1.117 + GET_PROC(GetProgramiv);
1.118 + GET_PROC(GetQueryiv);
1.119 + GET_PROC(GetQueryObjectiv);
1.120 + GET_PROC(GetQueryObjectuiv);
1.121 + GET_PROC(GetShaderInfoLog);
1.122 + GET_PROC(GetShaderiv);
1.123 + GET_PROC(GetString);
1.124 + GET_PROC(GetStringi);
1.125 + GET_PROC(GetTexLevelParameteriv);
1.126 + GET_PROC(GenTextures);
1.127 + GET_PROC(GetUniformLocation);
1.128 + GET_PROC(LineWidth);
1.129 + GET_PROC(LinkProgram);
1.130 + GET_PROC(LoadIdentity);
1.131 + GET_PROC(LoadMatrixf);
1.132 + GET_PROC(MapBuffer);
1.133 + GET_PROC(MatrixMode);
1.134 + GET_PROC(PixelStorei);
1.135 + GET_PROC(ReadBuffer);
1.136 + GET_PROC(ReadPixels);
1.137 + GET_PROC(Scissor);
1.138 + GET_PROC(ShaderSource);
1.139 + GET_PROC(StencilFunc);
1.140 + GET_PROC(StencilFuncSeparate);
1.141 + GET_PROC(StencilMask);
1.142 + GET_PROC(StencilMaskSeparate);
1.143 + GET_PROC(StencilOp);
1.144 + GET_PROC(StencilOpSeparate);
1.145 + GET_PROC(TexGenfv);
1.146 + GET_PROC(TexGeni);
1.147 + GET_PROC(TexImage2D);
1.148 + GET_PROC(TexParameteri);
1.149 + GET_PROC(TexParameteriv);
1.150 + if (ver >= GR_GL_VER(4,2) || extensions.has("GL_ARB_texture_storage")) {
1.151 + GET_PROC(TexStorage2D);
1.152 + } else if (extensions.has("GL_EXT_texture_storage")) {
1.153 + GET_PROC_SUFFIX(TexStorage2D, EXT);
1.154 + }
1.155 + GET_PROC(TexSubImage2D);
1.156 + GET_PROC(Uniform1f);
1.157 + GET_PROC(Uniform1i);
1.158 + GET_PROC(Uniform1fv);
1.159 + GET_PROC(Uniform1iv);
1.160 + GET_PROC(Uniform2f);
1.161 + GET_PROC(Uniform2i);
1.162 + GET_PROC(Uniform2fv);
1.163 + GET_PROC(Uniform2iv);
1.164 + GET_PROC(Uniform3f);
1.165 + GET_PROC(Uniform3i);
1.166 + GET_PROC(Uniform3fv);
1.167 + GET_PROC(Uniform3iv);
1.168 + GET_PROC(Uniform4f);
1.169 + GET_PROC(Uniform4i);
1.170 + GET_PROC(Uniform4fv);
1.171 + GET_PROC(Uniform4iv);
1.172 + GET_PROC(Uniform4fv);
1.173 + GET_PROC(UniformMatrix2fv);
1.174 + GET_PROC(UniformMatrix3fv);
1.175 + GET_PROC(UniformMatrix4fv);
1.176 + GET_PROC(UnmapBuffer);
1.177 + GET_PROC(UseProgram);
1.178 + GET_PROC(VertexAttrib4fv);
1.179 + GET_PROC(VertexAttribPointer);
1.180 + GET_PROC(Viewport);
1.181 +
1.182 + if (ver >= GR_GL_VER(3,0) || extensions.has("GL_ARB_vertex_array_object")) {
1.183 + // no ARB suffix for GL_ARB_vertex_array_object
1.184 + GET_PROC(BindVertexArray);
1.185 + GET_PROC(DeleteVertexArrays);
1.186 + GET_PROC(GenVertexArrays);
1.187 + }
1.188 +
1.189 + if (ver >= GR_GL_VER(3,3) || extensions.has("GL_ARB_timer_query")) {
1.190 + // ARB extension doesn't use the ARB suffix on the function name
1.191 + GET_PROC(QueryCounter);
1.192 + GET_PROC(GetQueryObjecti64v);
1.193 + GET_PROC(GetQueryObjectui64v);
1.194 + } else if (extensions.has("GL_EXT_timer_query")) {
1.195 + GET_PROC_SUFFIX(GetQueryObjecti64v, EXT);
1.196 + GET_PROC_SUFFIX(GetQueryObjectui64v, EXT);
1.197 + }
1.198 +
1.199 + if (ver >= GR_GL_VER(3,0) || extensions.has("GL_ARB_framebuffer_object")) {
1.200 + // ARB extension doesn't use the ARB suffix on the function names
1.201 + GET_PROC(GenFramebuffers);
1.202 + GET_PROC(GetFramebufferAttachmentParameteriv);
1.203 + GET_PROC(GetRenderbufferParameteriv);
1.204 + GET_PROC(BindFramebuffer);
1.205 + GET_PROC(FramebufferTexture2D);
1.206 + GET_PROC(CheckFramebufferStatus);
1.207 + GET_PROC(DeleteFramebuffers);
1.208 + GET_PROC(RenderbufferStorage);
1.209 + GET_PROC(GenRenderbuffers);
1.210 + GET_PROC(DeleteRenderbuffers);
1.211 + GET_PROC(FramebufferRenderbuffer);
1.212 + GET_PROC(BindRenderbuffer);
1.213 + GET_PROC(RenderbufferStorageMultisample);
1.214 + GET_PROC(BlitFramebuffer);
1.215 + } else {
1.216 + if (extensions.has("GL_EXT_framebuffer_object")) {
1.217 + GET_PROC_SUFFIX(GenFramebuffers, EXT);
1.218 + GET_PROC_SUFFIX(GetFramebufferAttachmentParameteriv, EXT);
1.219 + GET_PROC_SUFFIX(GetRenderbufferParameteriv, EXT);
1.220 + GET_PROC_SUFFIX(BindFramebuffer, EXT);
1.221 + GET_PROC_SUFFIX(FramebufferTexture2D, EXT);
1.222 + GET_PROC_SUFFIX(CheckFramebufferStatus, EXT);
1.223 + GET_PROC_SUFFIX(DeleteFramebuffers, EXT);
1.224 + GET_PROC_SUFFIX(RenderbufferStorage, EXT);
1.225 + GET_PROC_SUFFIX(GenRenderbuffers, EXT);
1.226 + GET_PROC_SUFFIX(DeleteRenderbuffers, EXT);
1.227 + GET_PROC_SUFFIX(FramebufferRenderbuffer, EXT);
1.228 + GET_PROC_SUFFIX(BindRenderbuffer, EXT);
1.229 + }
1.230 + if (extensions.has("GL_EXT_framebuffer_multisample")) {
1.231 + GET_PROC_SUFFIX(RenderbufferStorageMultisample, EXT);
1.232 + }
1.233 + if (extensions.has("GL_EXT_framebuffer_blit")) {
1.234 + GET_PROC_SUFFIX(BlitFramebuffer, EXT);
1.235 + }
1.236 + }
1.237 + if (ver >= GR_GL_VER(3,3) || extensions.has("GL_ARB_blend_func_extended")) {
1.238 + // ARB extension doesn't use the ARB suffix on the function name
1.239 + GET_PROC(BindFragDataLocationIndexed);
1.240 + }
1.241 +
1.242 + if (extensions.has("GL_EXT_debug_marker")) {
1.243 + GET_PROC_SUFFIX(InsertEventMarker, EXT);
1.244 + GET_PROC_SUFFIX(PushGroupMarker, EXT);
1.245 + GET_PROC_SUFFIX(PopGroupMarker, EXT);
1.246 + }
1.247 +
1.248 + interface->fExtensions.swap(&extensions);
1.249 + return interface;
1.250 +}
