const GrGLInterface* GrGLCreateNativeInterface() {
GrGLGetStringiProc getStringi = (GrGLGetStringiProc) eglGetProcAddress("glGetStringi");
const char* verStr = reinterpret_cast<const char*>(glGetString(GR_GL_VERSION));
GrGLVersion version = GrGLGetVersionFromString(verStr);
GrGLStandard standard = GrGLGetStandardInUseFromString(verStr);
GrGLExtensions extensions;
if (!extensions.init(standard, glGetString, getStringi, glGetIntegerv)) {
return NULL;
}
GrGLInterface* interface = NULL;
if (kGLES_GrGLStandard == standard) {
interface = create_es_interface(version, &extensions);
} else if (kGL_GrGLStandard == standard) {
interface = create_desktop_interface(version, extensions);
}
if (NULL != interface) {
interface->fExtensions.swap(&extensions);
}
return interface;
}
const GrGLInterface* GrGLAssembleInterface(void* ctx, GrGLGetProc get) {
GET_PROC_LOCAL(GetString);
if (nullptr == GetString) {
return nullptr;
}
const char* verStr = reinterpret_cast<const char*>(GetString(GR_GL_VERSION));
if (nullptr == verStr) {
return nullptr;
}
GrGLStandard standard = GrGLGetStandardInUseFromString(verStr);
if (kGLES_GrGLStandard == standard) {
return GrGLAssembleGLESInterface(ctx, get);
} else if (kGL_GrGLStandard == standard) {
return GrGLAssembleGLInterface(ctx, get);
}
return nullptr;
}
