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/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrGLContext.h"
////////////////////////////////////////////////////////////////////////////////
GrGLContextInfo& GrGLContextInfo::operator= (const GrGLContextInfo& ctxInfo) {
fBindingInUse = ctxInfo.fBindingInUse;
fGLVersion = ctxInfo.fGLVersion;
fGLSLGeneration = ctxInfo.fGLSLGeneration;
fVendor = ctxInfo.fVendor;
fExtensions = ctxInfo.fExtensions;
fIsMesa = ctxInfo.fIsMesa;
*fGLCaps = *ctxInfo.fGLCaps.get();
return *this;
}
bool GrGLContextInfo::initialize(const GrGLInterface* interface) {
this->reset();
// We haven't validated the GrGLInterface yet, so check for GetString
// function pointer
if (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 (0 != binding && interface->validate(binding) && fExtensions.init(binding, interface)) {
fBindingInUse = binding;
fGLVersion = GrGLGetVersionFromString(ver);
fGLSLGeneration = GrGetGLSLGeneration(fBindingInUse, interface);
fVendor = GrGLGetVendor(interface);
fIsMesa = GrGLIsMesaFromVersionString(ver);
fGLCaps->init(*this, interface);
return true;
}
}
return false;
}
bool GrGLContextInfo::isInitialized() const {
return kNone_GrGLBinding != fBindingInUse;
}
void GrGLContextInfo::reset() {
fBindingInUse = kNone_GrGLBinding;
fGLVersion = GR_GL_VER(0, 0);
fGLSLGeneration = static_cast<GrGLSLGeneration>(0);
fVendor = kOther_GrGLVendor;
fIsMesa = false;
fExtensions.reset();
fGLCaps->reset();
}
////////////////////////////////////////////////////////////////////////////////
GrGLContext::GrGLContext(const GrGLInterface* interface) {
fInterface = NULL;
this->initialize(interface);
}
GrGLContext::GrGLContext(const GrGLContext& ctx) {
fInterface = NULL;
*this = ctx;
}
GrGLContext& GrGLContext::operator = (const GrGLContext& ctx) {
GrSafeAssign(fInterface, ctx.fInterface);
fInfo = ctx.fInfo;
return *this;
}
void GrGLContext::reset() {
GrSafeSetNull(fInterface);
fInfo.reset();
}
bool GrGLContext::initialize(const GrGLInterface* interface) {
if (fInfo.initialize(interface)) {
fInterface = interface;
interface->ref();
return true;
}
return false;
}
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