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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrGLSLProgramDataManager_DEFINED
#define GrGLSLProgramDataManager_DEFINED
#include "GrResourceHandle.h"
#include "SkTypes.h"
class SkMatrix;
class SkMatrix44;
/** Manages the resources used by a shader program.
* The resources are objects the program uses to communicate with the
* application code.
*/
class GrGLSLProgramDataManager : SkNoncopyable {
public:
GR_DEFINE_RESOURCE_HANDLE_CLASS(UniformHandle);
virtual ~GrGLSLProgramDataManager() {}
/** Functions for uploading uniform values. The varities ending in v can be used to upload to an
* array of uniforms. arrayCount must be <= the array count of the uniform.
*/
virtual void set1i(UniformHandle, int32_t) const = 0;
virtual void set1iv(UniformHandle, int arrayCount, const int v[]) const = 0;
virtual void set1f(UniformHandle, float v0) const = 0;
virtual void set1fv(UniformHandle, int arrayCount, const float v[]) const = 0;
virtual void set2f(UniformHandle, float, float) const = 0;
virtual void set2fv(UniformHandle, int arrayCount, const float v[]) const = 0;
virtual void set3f(UniformHandle, float, float, float) const = 0;
virtual void set3fv(UniformHandle, int arrayCount, const float v[]) const = 0;
virtual void set4f(UniformHandle, float, float, float, float) const = 0;
virtual void set4fv(UniformHandle, int arrayCount, const float v[]) const = 0;
// matrices are column-major, the first three upload a single matrix, the latter three upload
// arrayCount matrices into a uniform array.
virtual void setMatrix2f(UniformHandle, const float matrix[]) const = 0;
virtual void setMatrix3f(UniformHandle, const float matrix[]) const = 0;
virtual void setMatrix4f(UniformHandle, const float matrix[]) const = 0;
virtual void setMatrix2fv(UniformHandle, int arrayCount, const float matrices[]) const = 0;
virtual void setMatrix3fv(UniformHandle, int arrayCount, const float matrices[]) const = 0;
virtual void setMatrix4fv(UniformHandle, int arrayCount, const float matrices[]) const = 0;
// convenience method for uploading a SkMatrix to a 3x3 matrix uniform
void setSkMatrix(UniformHandle, const SkMatrix&) const;
// convenience method for uploading a SkMatrix44 to a 4x4 matrix uniform
void setSkMatrix44(UniformHandle, const SkMatrix44&) const;
// for nvpr only
GR_DEFINE_RESOURCE_HANDLE_CLASS(VaryingHandle);
virtual void setPathFragmentInputTransform(VaryingHandle u, int components,
const SkMatrix& matrix) const = 0;
protected:
GrGLSLProgramDataManager() {}
private:
typedef SkNoncopyable INHERITED;
};
#endif
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