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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrGpuGLShaders_DEFINED
#define GrGpuGLShaders_DEFINED
#include "GrGpuGL.h"
#include "GrGLProgram.h"
class GrCustomStage;
class GrGpuGLProgram;
// Programmable OpenGL or OpenGL ES 2.0
class GrGpuGLShaders : public GrGpuGL {
public:
GrGpuGLShaders(const GrGLContextInfo& ctxInfo);
virtual ~GrGpuGLShaders();
virtual void abandonResources() SK_OVERRIDE;
bool programUnitTest();
protected:
// overrides from GrGpu
virtual void onResetContext() SK_OVERRIDE;
virtual bool flushGraphicsState(GrPrimitiveType type) SK_OVERRIDE;
virtual void setupGeometry(int* startVertex,
int* startIndex,
int vertexCount,
int indexCount) SK_OVERRIDE;
private:
// for readability of function impls
typedef GrGLProgram::ProgramDesc ProgramDesc;
typedef ProgramDesc::StageDesc StageDesc;
typedef GrGLProgram::CachedData CachedData;
class ProgramCache;
// sets the texture matrix uniform for currently bound program
void flushTextureMatrix(int stage);
// sets the texture domain uniform for currently bound program
void flushTextureDomain(int stage);
// sets the color specified by GrDrawState::setColor()
void flushColor(GrColor color);
// sets the color specified by GrDrawState::setCoverage()
void flushCoverage(GrColor color);
// sets the MVP matrix uniform for currently bound program
void flushViewMatrix();
// flushes the parameters to two point radial gradient
void flushRadial2(int stage);
// flushes the parameters for convolution
void flushConvolution(int stage);
// flushes the normalized texel size
void flushTexelSize(int stage);
// flushes the color matrix
void flushColorMatrix();
static void DeleteProgram(const GrGLInterface* gl,
CachedData* programData);
void buildProgram(GrPrimitiveType typeBlend,
BlendOptFlags blendOpts,
GrBlendCoeff dstCoeff,
GrCustomStage** customStages);
ProgramCache* fProgramCache;
CachedData* fProgramData;
GrGLuint fHWProgramID;
GrColor fHWConstAttribColor;
GrColor fHWConstAttribCoverage;
GrGLProgram fCurrentProgram;
// If we get rid of fixed function subclass this should move
// to the GLCaps struct in parent class
GrGLint fMaxVertexAttribs;
typedef GrGpuGL INHERITED;
};
#endif
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