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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 GrGLSLTextureSampler_DEFINED
#define GrGLSLTextureSampler_DEFINED
#include "GrShaderVar.h"
#include "GrTextureAccess.h"
#include "glsl/GrGLSLProgramDataManager.h"
class GrGLSLTextureSampler {
public:
typedef GrGLSLProgramDataManager::UniformHandle UniformHandle;
typedef SkTArray<GrGLSLTextureSampler> TextureSamplerArray;
GrGLSLTextureSampler(UniformHandle uniform, const GrTextureAccess& access)
: fSamplerUniform(uniform)
, fConfig(access.getTexture()->config()) {
SkASSERT(kUnknown_GrPixelConfig != fConfig);
memcpy(fSwizzle, access.getSwizzle(), 5);
}
GrPixelConfig config() const { return fConfig; }
// this is .abcd
const char* swizzle() const { return fSwizzle; }
private:
UniformHandle fSamplerUniform;
GrPixelConfig fConfig;
char fSwizzle[5];
friend class GrGLSLShaderBuilder;
};
#endif
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