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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrGLContextInfo.h"
GrGLContextInfo::~GrGLContextInfo() {
GrSafeUnref(fInterface);
}
GrGLContextInfo::GrGLContextInfo() {
this->reset();
}
GrGLContextInfo::GrGLContextInfo(const GrGLInterface* interface) {
fInterface = NULL;
this->initialize(interface);
}
GrGLContextInfo::GrGLContextInfo(const GrGLContextInfo& ctx) {
fInterface = NULL;
*this = ctx;
}
GrGLContextInfo& GrGLContextInfo::operator = (const GrGLContextInfo& ctx) {
GrSafeAssign(fInterface, ctx.fInterface);
fBindingInUse = ctx.fBindingInUse;
fGLVersion = ctx.fGLVersion;
fGLSLGeneration = ctx.fGLSLGeneration;
fVendor = ctx.fVendor;
fExtensionString = ctx.fExtensionString;
fGLCaps = ctx.fGLCaps;
return *this;
}
void GrGLContextInfo::reset() {
GrSafeSetNull(fInterface);
fBindingInUse = kNone_GrGLBinding;
fGLVersion = GR_GL_VER(0, 0);
fGLSLGeneration = static_cast<GrGLSLGeneration>(0);
fVendor = kOther_GrGLVendor;
fExtensionString = "";
fGLCaps.reset();
}
bool GrGLContextInfo::initialize(const GrGLInterface* interface) {
this->reset();
// We haven't validated the GrGLInterface yet, so check for GetString
// function pointer
if (NULL != interface->fGetString) {
const GrGLubyte* verUByte;
GR_GL_CALL_RET(interface, verUByte, GetString(GR_GL_VERSION));
const char* ver = reinterpret_cast<const char*>(verUByte);
GrGLBinding binding = GrGLGetBindingInUseFromString(ver);
if (interface->validate(binding)) {
fInterface = interface;
interface->ref();
fBindingInUse = binding;
fGLVersion = GrGLGetVersionFromString(ver);
fGLSLGeneration = GrGetGLSLGeneration(fBindingInUse,
this->interface());
const GrGLubyte* ext;
GR_GL_CALL_RET(interface, ext, GetString(GR_GL_EXTENSIONS));
fExtensionString = reinterpret_cast<const char*>(ext);
fVendor = GrGLGetVendor(interface);
fGLCaps.init(*this);
return true;
}
}
return false;
}
bool GrGLContextInfo::isInitialized() const {
return kNone_GrGLBinding != fBindingInUse;
}
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