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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.
*/
#ifndef GrGLContextInfo_DEFINED
#define GrGLContextInfo_DEFINED
#include "gl/GrGLInterface.h"
#include "GrGLCaps.h"
#include "GrGLSL.h"
#include "GrGLUtil.h"
#include "SkString.h"
/**
* Encapsulates information about an OpenGL context including the GrGLInterface
* used to make GL calls, the OpenGL version, the GrGLBinding type of the
* context, and GLSL version.
*/
class GrGLContextInfo {
public:
/**
* Default constructor, creates an uninitialized GrGLContextInfo
*/
GrGLContextInfo();
/**
* Creates a GrGLContextInfo from a GrGLInterface and the currently
* bound OpenGL context accesible by the GrGLInterface.
*/
explicit GrGLContextInfo(const GrGLInterface* interface);
/**
* Copies a GrGLContextInfo
*/
GrGLContextInfo(const GrGLContextInfo& ctx);
~GrGLContextInfo();
/**
* Copies a GrGLContextInfo
*/
GrGLContextInfo& operator = (const GrGLContextInfo& ctx);
/**
* Initializes a GrGLContextInfo from a GrGLInterface and the currently
* bound OpenGL context accessible by the GrGLInterface.
*/
bool initialize(const GrGLInterface* interface);
bool isInitialized() const;
const GrGLInterface* interface() const { return fInterface; }
GrGLBinding binding() const { return fBindingInUse; }
GrGLVersion version() const { return fGLVersion; }
GrGLSLGeneration glslGeneration() const { return fGLSLGeneration; }
const GrGLCaps& caps() const { return fGLCaps; }
GrGLCaps& caps() { return fGLCaps; }
/**
* Checks for extension support using a cached copy of the GL_EXTENSIONS
* string.
*/
bool hasExtension(const char* ext) const {
if (!this->isInitialized()) {
return false;
}
return GrGLHasExtensionFromString(ext, fExtensionString.c_str());
}
private:
void reset();
const GrGLInterface* fInterface;
GrGLBinding fBindingInUse;
GrGLVersion fGLVersion;
GrGLSLGeneration fGLSLGeneration;
SkString fExtensionString;
GrGLCaps fGLCaps;
};
#endif
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