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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrProcessor_DEFINED
#define GrProcessor_DEFINED
#include "../private/SkAtomics.h"
#include "GrBuffer.h"
#include "GrColor.h"
#include "GrProcessorUnitTest.h"
#include "GrProgramElement.h"
#include "GrSamplerState.h"
#include "GrShaderVar.h"
#include "GrSurfaceProxyPriv.h"
#include "GrSurfaceProxyRef.h"
#include "GrTextureProxy.h"
#include "SkMath.h"
#include "SkString.h"
class GrContext;
class GrResourceProvider;
/**
* Used by processors to build their keys. It incorporates each per-processor key into a larger
* shader key.
*/
class GrProcessorKeyBuilder {
public:
GrProcessorKeyBuilder(SkTArray<unsigned char, true>* data) : fData(data), fCount(0) {
SkASSERT(0 == fData->count() % sizeof(uint32_t));
}
void add32(uint32_t v) {
++fCount;
fData->push_back_n(4, reinterpret_cast<uint8_t*>(&v));
}
/** Inserts count uint32_ts into the key. The returned pointer is only valid until the next
add*() call. */
uint32_t* SK_WARN_UNUSED_RESULT add32n(int count) {
SkASSERT(count > 0);
fCount += count;
return reinterpret_cast<uint32_t*>(fData->push_back_n(4 * count));
}
size_t size() const { return sizeof(uint32_t) * fCount; }
private:
SkTArray<uint8_t, true>* fData; // unowned ptr to the larger key.
int fCount; // number of uint32_ts added to fData by the processor.
};
/** Provides custom shader code to the Ganesh shading pipeline. GrProcessor objects *must* be
immutable: after being constructed, their fields may not change.
Dynamically allocated GrProcessors are managed by a per-thread memory pool. The ref count of an
processor must reach 0 before the thread terminates and the pool is destroyed.
*/
class GrProcessor {
public:
enum ClassID {
kBigKeyProcessor_ClassID,
kBlockInputFragmentProcessor_ClassID,
kButtCapStrokedCircleGeometryProcessor_ClassID,
kCircleGeometryProcessor_ClassID,
kCircularRRectEffect_ClassID,
kClockwiseTestProcessor_ClassID,
kColorMatrixEffect_ClassID,
kColorTableEffect_ClassID,
kComposeOneFragmentProcessor_ClassID,
kComposeTwoFragmentProcessor_ClassID,
kCoverageSetOpXP_ClassID,
kCustomXP_ClassID,
kDashingCircleEffect_ClassID,
kDashingLineEffect_ClassID,
kDefaultGeoProc_ClassID,
kDIEllipseGeometryProcessor_ClassID,
kDisableColorXP_ClassID,
kTwoPointConicalEffect_ClassID,
kEllipseGeometryProcessor_ClassID,
kEllipticalRRectEffect_ClassID,
kGP_ClassID,
kVertexColorSpaceBenchGP_ClassID,
kGrAARectEffect_ClassID,
kGrAlphaThresholdFragmentProcessor_ClassID,
kGrArithmeticFP_ClassID,
kGrBicubicEffect_ClassID,
kGrBitmapTextGeoProc_ClassID,
kGrBlurredEdgeFragmentProcessor_ClassID,
kGrCCClipProcessor_ClassID,
kGrCCCoverageProcessor_ClassID,
kGrCCPathProcessor_ClassID,
kGrCircleBlurFragmentProcessor_ClassID,
kGrCircleEffect_ClassID,
kGrColorSpaceXformEffect_ClassID,
kGrConfigConversionEffect_ClassID,
kGrConicEffect_ClassID,
kGrConstColorProcessor_ClassID,
kGrConvexPolyEffect_ClassID,
kGrCubicEffect_ClassID,
kGrDeviceSpaceTextureDecalFragmentProcessor_ClassID,
kGrDiffuseLightingEffect_ClassID,
kGrDisplacementMapEffect_ClassID,
kGrDistanceFieldA8TextGeoProc_ClassID,
kGrDistanceFieldLCDTextGeoProc_ClassID,
kGrDistanceFieldPathGeoProc_ClassID,
kGrDitherEffect_ClassID,
kGrEllipseEffect_ClassID,
kGrGaussianConvolutionFragmentProcessor_ClassID,
kGrImprovedPerlinNoiseEffect_ClassID,
kGrLightingEffect_ClassID,
kGrLinearGradient_ClassID,
kGrLumaColorFilterEffect_ClassID,
kGrMagnifierEffect_ClassID,
kGrMatrixConvolutionEffect_ClassID,
kGrMeshTestProcessor_ClassID,
kGrMorphologyEffect_ClassID,
kGrOverdrawFragmentProcessor_ClassID,
kGrPathProcessor_ClassID,
kGrPerlinNoise2Effect_ClassID,
kGrPipelineDynamicStateTestProcessor_ClassID,
kGrPremulInputFragmentProcessor_ClassID,
kGrQuadEffect_ClassID,
kGrRadialGradient_ClassID,
kGrRectBlurEffect_ClassID,
kGrRRectBlurEffect_ClassID,
kGrRRectShadowGeoProc_ClassID,
kGrSimpleTextureEffect_ClassID,
kGrSkSLFP_ClassID,
kGrSpecularLightingEffect_ClassID,
kGrSRGBEffect_ClassID,
kGrSweepGradient_ClassID,
kGrTextureDomainEffect_ClassID,
kGrUnpremulInputFragmentProcessor_ClassID,
kGrYUVtoRGBEffect_ClassID,
kHighContrastFilterEffect_ClassID,
kInstanceProcessor_ClassID,
kLatticeGP_ClassID,
kLumaColorFilterEffect_ClassID,
kMSAAQuadProcessor_ClassID,
kPDLCDXferProcessor_ClassID,
kPorterDuffXferProcessor_ClassID,
kPremulFragmentProcessor_ClassID,
kQuadEdgeEffect_ClassID,
kReplaceInputFragmentProcessor_ClassID,
kRRectsGaussianEdgeFP_ClassID,
kSeriesFragmentProcessor_ClassID,
kShaderPDXferProcessor_ClassID,
kSwizzleFragmentProcessor_ClassID,
kTestFP_ClassID,
kTextureGeometryProcessor_ClassID,
kFlatNormalsFP_ClassID,
kMappedNormalsFP_ClassID,
kLightingFP_ClassID,
};
virtual ~GrProcessor() = default;
/** Human-meaningful string to identify this prcoessor; may be embedded in generated shader
code. */
virtual const char* name() const = 0;
/** Human-readable dump of all information */
virtual SkString dumpInfo() const {
SkString str;
str.appendf("Missing data");
return str;
}
void* operator new(size_t size);
void operator delete(void* target);
void* operator new(size_t size, void* placement) {
return ::operator new(size, placement);
}
void operator delete(void* target, void* placement) {
::operator delete(target, placement);
}
/** Helper for down-casting to a GrProcessor subclass */
template <typename T> const T& cast() const { return *static_cast<const T*>(this); }
ClassID classID() const { return fClassID; }
protected:
GrProcessor(ClassID classID) : fClassID(classID) {}
private:
GrProcessor(const GrProcessor&) = delete;
GrProcessor& operator=(const GrProcessor&) = delete;
ClassID fClassID;
};
#endif
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