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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.
*/
#ifndef GrBitmapTextGeoProc_DEFINED
#define GrBitmapTextGeoProc_DEFINED
#include "GrProcessor.h"
#include "GrGeometryProcessor.h"
class GrGLBitmapTextGeoProc;
class GrInvariantOutput;
/**
* The output color of this effect is a modulation of the input color and a sample from a texture.
* It allows explicit specification of the filtering and wrap modes (GrSamplerState). The input
* coords are a custom attribute.
*/
class GrBitmapTextGeoProc : public GrGeometryProcessor {
public:
static sk_sp<GrGeometryProcessor> Make(GrColor color,
const sk_sp<GrTextureProxy>* proxies,
int numActiveProxies,
const GrSamplerState& p, GrMaskFormat format,
const SkMatrix& localMatrix, bool usesW) {
return sk_sp<GrGeometryProcessor>(
new GrBitmapTextGeoProc(color, proxies, numActiveProxies, p, format,
localMatrix, usesW));
}
~GrBitmapTextGeoProc() override {}
const char* name() const override { return "Texture"; }
const Attribute& inPosition() const { return fInPosition; }
const Attribute& inColor() const { return fInColor; }
const Attribute& inTextureCoords() const { return fInTextureCoords; }
GrMaskFormat maskFormat() const { return fMaskFormat; }
GrColor color() const { return fColor; }
bool hasVertexColor() const { return fInColor.isInitialized(); }
const SkMatrix& localMatrix() const { return fLocalMatrix; }
bool usesW() const { return fUsesW; }
void addNewProxies(const sk_sp<GrTextureProxy>*, int numActiveProxies, const GrSamplerState&);
void getGLSLProcessorKey(const GrShaderCaps& caps, GrProcessorKeyBuilder* b) const override;
GrGLSLPrimitiveProcessor* createGLSLInstance(const GrShaderCaps& caps) const override;
private:
static constexpr int kMaxTextures = 4;
GrBitmapTextGeoProc(GrColor, const sk_sp<GrTextureProxy>* proxies, int numProxies,
const GrSamplerState& params, GrMaskFormat format,
const SkMatrix& localMatrix, bool usesW);
const Attribute& onVertexAttribute(int i) const override;
GrColor fColor;
SkMatrix fLocalMatrix;
bool fUsesW;
TextureSampler fTextureSamplers[kMaxTextures];
Attribute fInPosition;
Attribute fInColor;
Attribute fInTextureCoords;
GrMaskFormat fMaskFormat;
GR_DECLARE_GEOMETRY_PROCESSOR_TEST
typedef GrGeometryProcessor INHERITED;
};
#endif
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