bool GrGLContextInfo::initialize(const GrGLInterface* interface) {
this->reset();
// We haven't validated the GrGLInterface yet, so check for GetString
// function pointer
if (interface->fFunctions.fGetString) {
const GrGLubyte* verUByte;
GR_GL_CALL_RET(interface, verUByte, GetString(GR_GL_VERSION));
const char* ver = reinterpret_cast<const char*>(verUByte);
const GrGLubyte* rendererUByte;
GR_GL_CALL_RET(interface, rendererUByte, GetString(GR_GL_RENDERER));
const char* renderer = reinterpret_cast<const char*>(rendererUByte);
if (interface->validate()) {
fGLVersion = GrGLGetVersionFromString(ver);
if (GR_GL_INVALID_VER == fGLVersion) {
return false;
}
if (!GrGetGLSLGeneration(interface, &fGLSLGeneration)) {
return false;
}
fVendor = GrGLGetVendor(interface);
/*
* Qualcomm drivers have a horrendous bug with some drivers. Though they claim to
* support GLES 3.00, some perfectly valid GLSL300 shaders will only compile with
* #version 100, and will fail to compile with #version 300 es. In the long term, we
* need to lock this down to a specific driver version.
*/
if (kQualcomm_GrGLVendor == fVendor) {
fGLSLGeneration = k110_GrGLSLGeneration;
}
fRenderer = GrGLGetRendererFromString(renderer);
fIsMesa = GrGLIsMesaFromVersionString(ver);
fIsChromium = GrGLIsChromiumFromRendererString(renderer);
// This must occur before caps init.
fInterface.reset(SkRef(interface));
return fGLCaps->init(*this, interface);
}
}
return false;
}
GrGLRenderer GrGLGetRenderer(const GrGLInterface* gl) {
const GrGLubyte* v;
GR_GL_CALL_RET(gl, v, GetString(GR_GL_RENDERER));
return GrGLGetRendererFromString((const char*) v);
}
