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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 "src/base/SkArenaAlloc.h"
#include "src/gpu/AtlasTypes.h"
#include "src/gpu/ganesh/GrGeometryProcessor.h"
#include "src/gpu/ganesh/GrProcessor.h"
#include "src/gpu/ganesh/GrProcessorUnitTest.h"
class GrGLBitmapTextGeoProc;
class GrInvariantOutput;
class GrSurfaceProxyView;
/**
* 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:
inline static constexpr int kMaxTextures = 4;
static GrGeometryProcessor* Make(SkArenaAlloc* arena,
const GrShaderCaps& caps,
const SkPMColor4f& color,
bool wideColor,
const GrSurfaceProxyView* views,
int numActiveViews,
GrSamplerState p,
skgpu::MaskFormat format,
const SkMatrix& localMatrix,
bool usesW) {
return arena->make([&](void* ptr) {
return new (ptr) GrBitmapTextGeoProc(caps, color, wideColor, views, numActiveViews,
p, format, localMatrix, usesW);
});
}
~GrBitmapTextGeoProc() override {}
const char* name() const override { return "BitmapText"; }
void addNewViews(const GrSurfaceProxyView*, int numActiveViews, GrSamplerState);
void addToKey(const GrShaderCaps& caps, skgpu::KeyBuilder* b) const override;
std::unique_ptr<ProgramImpl> makeProgramImpl(const GrShaderCaps& caps) const override;
private:
class Impl;
GrBitmapTextGeoProc(const GrShaderCaps&, const SkPMColor4f&, bool wideColor,
const GrSurfaceProxyView* views, int numViews, GrSamplerState params,
skgpu::MaskFormat format, const SkMatrix& localMatrix, bool usesW);
bool hasVertexColor() const { return fInColor.isInitialized(); }
const TextureSampler& onTextureSampler(int i) const override { return fTextureSamplers[i]; }
SkPMColor4f fColor;
SkMatrix fLocalMatrix;
bool fUsesW;
SkISize fAtlasDimensions; // dimensions for all textures used with fTextureSamplers[].
TextureSampler fTextureSamplers[kMaxTextures];
Attribute fInPosition;
Attribute fInColor;
Attribute fInTextureCoords;
skgpu::MaskFormat fMaskFormat;
GR_DECLARE_GEOMETRY_PROCESSOR_TEST
using INHERITED = GrGeometryProcessor;
};
#endif
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