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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 GrGLPathProcessor_DEFINED
#define GrGLPathProcessor_DEFINED
#include "GrGLPrimitiveProcessor.h"
class GrPathProcessor;
class GrGLPathRendering;
class GrGLGpu;
class GrGLPathProcessor : public GrGLPrimitiveProcessor {
public:
GrGLPathProcessor(const GrPathProcessor&, const GrBatchTracker&);
static void GenKey(const GrPathProcessor&,
const GrBatchTracker& bt,
const GrGLCaps&,
GrProcessorKeyBuilder* b);
void emitCode(EmitArgs&) SK_OVERRIDE;
virtual void emitTransforms(GrGLGPBuilder*, const TransformsIn&, TransformsOut*) = 0;
virtual void resolveSeparableVaryings(GrGLGpu* gpu, GrGLuint programId) {}
void setData(const GrGLProgramDataManager&,
const GrPrimitiveProcessor&,
const GrBatchTracker&) SK_OVERRIDE;
virtual void setTransformData(const GrPrimitiveProcessor&,
int index,
const SkTArray<const GrCoordTransform*, true>& transforms,
GrGLPathRendering*,
GrGLuint programID) = 0;
virtual void didSetData(GrGLPathRendering*) {}
private:
UniformHandle fColorUniform;
GrColor fColor;
typedef GrGLPrimitiveProcessor INHERITED;
};
class GrGLLegacyPathProcessor : public GrGLPathProcessor {
public:
GrGLLegacyPathProcessor(const GrPathProcessor& pathProc, const GrBatchTracker& bt,
int maxTexCoords)
: INHERITED(pathProc, bt)
, fTexCoordSetCnt(0) {
SkDEBUGCODE(fMaxTexCoords = maxTexCoords;)
}
int addTexCoordSets(int count) {
int firstFreeCoordSet = fTexCoordSetCnt;
fTexCoordSetCnt += count;
SkASSERT(fMaxTexCoords >= fTexCoordSetCnt);
return firstFreeCoordSet;
}
void emitTransforms(GrGLGPBuilder*, const TransformsIn& tin, TransformsOut* tout) SK_OVERRIDE;
void setTransformData(const GrPrimitiveProcessor& primProc,
int index,
const SkTArray<const GrCoordTransform*, true>& transforms,
GrGLPathRendering* glpr,
GrGLuint) SK_OVERRIDE;
void didSetData(GrGLPathRendering* glpr) SK_OVERRIDE;
private:
SkDEBUGCODE(int fMaxTexCoords;)
int fTexCoordSetCnt;
typedef GrGLPathProcessor INHERITED;
};
class GrGLNormalPathProcessor : public GrGLPathProcessor {
public:
GrGLNormalPathProcessor(const GrPathProcessor& pathProc, const GrBatchTracker& bt)
: INHERITED(pathProc, bt) {}
void emitTransforms(GrGLGPBuilder* pb, const TransformsIn& tin,TransformsOut* tout) SK_OVERRIDE;
void resolveSeparableVaryings(GrGLGpu* gpu, GrGLuint programId);
void setTransformData(const GrPrimitiveProcessor& primProc,
int index,
const SkTArray<const GrCoordTransform*, true>& coordTransforms,
GrGLPathRendering* glpr,
GrGLuint programID) SK_OVERRIDE;
private:
struct SeparableVaryingInfo {
GrSLType fType;
GrGLShaderVar fVariable;
GrGLint fLocation;
};
typedef SkSTArray<8, SeparableVaryingInfo, true> SeparableVaryingInfoArray;
SeparableVaryingInfoArray fSeparableVaryingInfos;
typedef GrGLPathProcessor INHERITED;
};
#endif
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