Add luminance mask transfer modes.

This adds kSrcInLum_Mode and kDstInLum_Mode, to support CSS and SVG luminance masks (http://www.w3.org/TR/css-masking/#MaskValues , http://www.w3.org/TR/SVG/masking.html#Masking ).

The transfer coefficient is computed according to http://www.w3.org/TR/2011/REC-SVG11-20110816/filters.html#feColorMatrixElement "luminance-to-alpha":

  luma = 0.2125 * r + 0.7154 * g + 0.0721 * b


R=bsalomon@google.com, reed@google.com, robertphillips@google.com, vandebo@chromium.org

Author: fmalita@chromium.org

Review URL: https://chromiumcodereview.appspot.com/22918012

git-svn-id: http://skia.googlecode.com/svn/trunk@10887 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
commit-bot@chromium.org 2013-08-23 13:13:12 +00:00
Родитель 44a77c8158
Коммит eaa7797990
9 изменённых файлов: 421 добавлений и 58 удалений

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@ -12,6 +12,7 @@
#include "SkRandom.h"
#include "SkString.h"
#include "SkXfermode.h"
#include "SkLumaXfermode.h"
// Benchmark that draws non-AA rects with an SkXfermode::Mode
class XfermodeBench : public SkBenchmark {
@ -22,6 +23,13 @@ public:
fName.printf("Xfermode_%s", SkXfermode::ModeName(mode));
}
XfermodeBench(void* param, SkXfermode* xferMode, const char* name)
: SkBenchmark(param) {
SkASSERT(NULL != xferMode);
fXfermode.reset(xferMode);
fName.printf("Xfermode_%s", name);
}
protected:
virtual const char* onGetName() SK_OVERRIDE { return fName.c_str(); }
@ -58,62 +66,44 @@ private:
//////////////////////////////////////////////////////////////////////////////
static SkBenchmark* Fact00(void* p) { return new XfermodeBench(p, SkXfermode::kClear_Mode); }
static SkBenchmark* Fact01(void* p) { return new XfermodeBench(p, SkXfermode::kSrc_Mode); }
static SkBenchmark* Fact02(void* p) { return new XfermodeBench(p, SkXfermode::kDst_Mode); }
static SkBenchmark* Fact03(void* p) { return new XfermodeBench(p, SkXfermode::kSrcOver_Mode); }
static SkBenchmark* Fact04(void* p) { return new XfermodeBench(p, SkXfermode::kDstOver_Mode); }
static SkBenchmark* Fact05(void* p) { return new XfermodeBench(p, SkXfermode::kSrcIn_Mode); }
static SkBenchmark* Fact06(void* p) { return new XfermodeBench(p, SkXfermode::kDstIn_Mode); }
static SkBenchmark* Fact07(void* p) { return new XfermodeBench(p, SkXfermode::kSrcOut_Mode); }
static SkBenchmark* Fact08(void* p) { return new XfermodeBench(p, SkXfermode::kDstOut_Mode); }
static SkBenchmark* Fact09(void* p) { return new XfermodeBench(p, SkXfermode::kSrcATop_Mode); }
static SkBenchmark* Fact10(void* p) { return new XfermodeBench(p, SkXfermode::kDstATop_Mode); }
static SkBenchmark* Fact11(void* p) { return new XfermodeBench(p, SkXfermode::kXor_Mode); }
static SkBenchmark* Fact12(void* p) { return new XfermodeBench(p, SkXfermode::kPlus_Mode); }
static SkBenchmark* Fact13(void* p) { return new XfermodeBench(p, SkXfermode::kModulate_Mode); }
static SkBenchmark* Fact14(void* p) { return new XfermodeBench(p, SkXfermode::kScreen_Mode); }
static SkBenchmark* Fact15(void* p) { return new XfermodeBench(p, SkXfermode::kOverlay_Mode); }
static SkBenchmark* Fact16(void* p) { return new XfermodeBench(p, SkXfermode::kDarken_Mode); }
static SkBenchmark* Fact17(void* p) { return new XfermodeBench(p, SkXfermode::kLighten_Mode); }
static SkBenchmark* Fact18(void* p) { return new XfermodeBench(p, SkXfermode::kColorDodge_Mode); }
static SkBenchmark* Fact19(void* p) { return new XfermodeBench(p, SkXfermode::kColorBurn_Mode); }
static SkBenchmark* Fact20(void* p) { return new XfermodeBench(p, SkXfermode::kHardLight_Mode); }
static SkBenchmark* Fact21(void* p) { return new XfermodeBench(p, SkXfermode::kSoftLight_Mode); }
static SkBenchmark* Fact22(void* p) { return new XfermodeBench(p, SkXfermode::kDifference_Mode); }
static SkBenchmark* Fact23(void* p) { return new XfermodeBench(p, SkXfermode::kExclusion_Mode); }
static SkBenchmark* Fact24(void* p) { return new XfermodeBench(p, SkXfermode::kMultiply_Mode); }
static SkBenchmark* Fact25(void* p) { return new XfermodeBench(p, SkXfermode::kHue_Mode); }
static SkBenchmark* Fact26(void* p) { return new XfermodeBench(p, SkXfermode::kSaturation_Mode); }
static SkBenchmark* Fact27(void* p) { return new XfermodeBench(p, SkXfermode::kColor_Mode); }
static SkBenchmark* Fact28(void* p) { return new XfermodeBench(p, SkXfermode::kLuminosity_Mode); }
#define CONCAT_I(x, y) x ## y
#define CONCAT(x, y) CONCAT_I(x, y) // allow for macro expansion
#define BENCH(...) \
static SkBenchmark* CONCAT(Fact, __LINE__)(void *p) { return new XfermodeBench(p, __VA_ARGS__); };\
static BenchRegistry CONCAT(gReg, __LINE__)(CONCAT(Fact, __LINE__));
static BenchRegistry gReg00(Fact00);
static BenchRegistry gReg01(Fact01);
static BenchRegistry gReg02(Fact02);
static BenchRegistry gReg03(Fact03);
static BenchRegistry gReg04(Fact04);
static BenchRegistry gReg05(Fact05);
static BenchRegistry gReg06(Fact06);
static BenchRegistry gReg07(Fact07);
static BenchRegistry gReg08(Fact08);
static BenchRegistry gReg09(Fact09);
static BenchRegistry gReg10(Fact10);
static BenchRegistry gReg11(Fact11);
static BenchRegistry gReg12(Fact12);
static BenchRegistry gReg13(Fact13);
static BenchRegistry gReg14(Fact14);
static BenchRegistry gReg15(Fact15);
static BenchRegistry gReg16(Fact16);
static BenchRegistry gReg17(Fact17);
static BenchRegistry gReg18(Fact18);
static BenchRegistry gReg19(Fact19);
static BenchRegistry gReg20(Fact20);
static BenchRegistry gReg21(Fact21);
static BenchRegistry gReg22(Fact22);
static BenchRegistry gReg23(Fact23);
static BenchRegistry gReg24(Fact24);
static BenchRegistry gReg25(Fact25);
static BenchRegistry gReg26(Fact26);
static BenchRegistry gReg27(Fact27);
static BenchRegistry gReg28(Fact28);
BENCH(SkXfermode::kClear_Mode)
BENCH(SkXfermode::kSrc_Mode)
BENCH(SkXfermode::kDst_Mode)
BENCH(SkXfermode::kSrcOver_Mode)
BENCH(SkXfermode::kDstOver_Mode)
BENCH(SkXfermode::kSrcIn_Mode)
BENCH(SkXfermode::kDstIn_Mode)
BENCH(SkXfermode::kSrcOut_Mode)
BENCH(SkXfermode::kDstOut_Mode)
BENCH(SkXfermode::kSrcATop_Mode)
BENCH(SkXfermode::kDstATop_Mode)
BENCH(SkXfermode::kXor_Mode)
BENCH(SkXfermode::kPlus_Mode)
BENCH(SkXfermode::kModulate_Mode)
BENCH(SkXfermode::kScreen_Mode)
BENCH(SkXfermode::kOverlay_Mode)
BENCH(SkXfermode::kDarken_Mode)
BENCH(SkXfermode::kLighten_Mode)
BENCH(SkXfermode::kColorDodge_Mode)
BENCH(SkXfermode::kColorBurn_Mode)
BENCH(SkXfermode::kHardLight_Mode)
BENCH(SkXfermode::kSoftLight_Mode)
BENCH(SkXfermode::kDifference_Mode)
BENCH(SkXfermode::kExclusion_Mode)
BENCH(SkXfermode::kMultiply_Mode)
BENCH(SkXfermode::kHue_Mode)
BENCH(SkXfermode::kSaturation_Mode)
BENCH(SkXfermode::kColor_Mode)
BENCH(SkXfermode::kLuminosity_Mode)
BENCH(SkLumaMaskXfermode::Create(SkXfermode::kSrcIn_Mode), "SrcInLuma")
BENCH(SkLumaMaskXfermode::Create(SkXfermode::kDstIn_Mode), "DstInLuma")

86
gm/lumamode.cpp Normal file
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@ -0,0 +1,86 @@
/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
#include "SkCanvas.h"
#include "SkLumaXfermode.h"
static void show_scene(SkCanvas* canvas, SkXfermode* mode, const char* label) {
SkPaint paint;
paint.setAntiAlias(true);
SkRect r, c, bounds = { 10, 10, 110, 110 };
c = bounds;
c.fRight = bounds.centerX();
r = bounds;
r.fBottom = bounds.centerY();
canvas->drawRect(r, paint);
SkScalar tw = paint.measureText(label, strlen(label));
canvas->drawText(label, strlen(label), bounds.centerX() - tw / 2,
bounds.bottom() + 15, paint);
canvas->saveLayer(&bounds, NULL);
r = bounds;
r.inset(20, 0);
paint.setColor(0x80FFFF00);
canvas->drawOval(r, paint);
canvas->save();
canvas->clipRect(c);
paint.setColor(0xFFFFFF00);
canvas->drawOval(r, paint);
canvas->restore();
SkPaint xferPaint;
xferPaint.setXfermode(mode);
canvas->saveLayer(&bounds, &xferPaint);
r = bounds;
r.inset(0, 20);
paint.setColor(0x8080FF00);
canvas->drawOval(r, paint);
canvas->save();
canvas->clipRect(c);
paint.setColor(0xFF80FF00);
canvas->drawOval(r, paint);
canvas->restore();
canvas->restore();
canvas->restore();
}
class LumaXfermodeGM : public skiagm::GM {
public:
LumaXfermodeGM() {}
protected:
virtual SkString onShortName() SK_OVERRIDE {
return SkString("lumamode");
}
virtual SkISize onISize() SK_OVERRIDE {
return SkISize::Make(450, 140);
}
virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
show_scene(canvas, NULL, "SrcOver");
canvas->translate(150, 0);
SkAutoTUnref<SkXfermode> src_in(SkLumaMaskXfermode::Create(SkXfermode::kSrcIn_Mode));
show_scene(canvas, src_in.get(), "SrcInLuma");
canvas->translate(150, 0);
SkAutoTUnref<SkXfermode> dst_in(SkLumaMaskXfermode::Create(SkXfermode::kDstIn_Mode));
show_scene(canvas, dst_in.get(), "DstInLuma");
}
private:
typedef skiagm::GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM( return SkNEW(LumaXfermodeGM); )

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@ -39,6 +39,7 @@
'<(skia_src_path)/effects/SkLayerRasterizer.cpp',
'<(skia_src_path)/effects/SkLerpXfermode.cpp',
'<(skia_src_path)/effects/SkLightingImageFilter.cpp',
'<(skia_src_path)/effects/SkLumaXfermode.cpp',
'<(skia_src_path)/effects/SkMagnifierImageFilter.cpp',
'<(skia_src_path)/effects/SkMatrixConvolutionImageFilter.cpp',
'<(skia_src_path)/effects/SkMergeImageFilter.cpp',
@ -99,6 +100,7 @@
'<(skia_include_path)/effects/SkLayerRasterizer.h',
'<(skia_include_path)/effects/SkLerpXfermode.h',
'<(skia_include_path)/effects/SkLightingImageFilter.h',
'<(skia_include_path)/effects/SkLumaXfermode.h',
'<(skia_include_path)/effects/SkOffsetImageFilter.h',
'<(skia_include_path)/effects/SkMorphologyImageFilter.h',
'<(skia_include_path)/effects/SkPaintFlagsDrawFilter.h',

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@ -68,6 +68,7 @@
'../gm/inversepaths.cpp',
'../gm/lerpmode.cpp',
'../gm/lighting.cpp',
'../gm/lumamode.cpp',
'../gm/image.cpp',
'../gm/imagefiltersbase.cpp',
'../gm/imagefilterscropped.cpp',

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@ -78,6 +78,7 @@
'effects/SkMergeImageFilter.h',
'effects/SkPerlinNoiseShader.h',
'effects/SkLerpXfermode.h',
'effects/SkLumaXfermode.h',
'effects/SkRectShaderImageFilter.h',
'effects/SkMagnifierImageFilter.h',
'effects/SkBicubicImageFilter.h',

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@ -0,0 +1,58 @@
/*
* 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 SkLumaXfermode_DEFINED
#define SkLumaXfermode_DEFINED
#include "SkXfermode.h"
/**
* Luminance mask transfer, as defined in
* http://www.w3.org/TR/SVG/masking.html#Masking
* http://www.w3.org/TR/css-masking/#MaskValues
*
* The luminance-to-alpha function is applied before performing a standard
* SrcIn/DstIn xfer:
*
* luma(C) = (0.2125 * C.r + 0.7154 * C.g + 0.0721 * C.b) * C.a
*
* (where C is un-premultiplied)
*/
class SK_API SkLumaMaskXfermode : public SkXfermode {
public:
/** Return an SkLumaMaskXfermode object for the specified submode.
*
* Only kSrcIn_Mode and kDstIn_Mode are supported - for everything else,
* the factory returns NULL.
*/
static SkXfermode* Create(SkXfermode::Mode);
virtual SkPMColor xferColor(SkPMColor, SkPMColor) const SK_OVERRIDE;
virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
const SkAlpha aa[]) const SK_OVERRIDE;
SK_DEVELOPER_TO_STRING()
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLumaMaskXfermode)
#if SK_SUPPORT_GPU
virtual bool asNewEffectOrCoeff(GrContext*, GrEffectRef**, Coeff*, Coeff*,
GrTexture*) const SK_OVERRIDE;
#endif
protected:
SkLumaMaskXfermode(SkFlattenableReadBuffer&);
virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;
private:
SkLumaMaskXfermode(SkXfermode::Mode);
const SkXfermode::Mode fMode;
typedef SkXfermode INHERITED;
};
#endif

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@ -0,0 +1,221 @@
/*
* Copyright 2013 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkLumaXfermode.h"
#include "SkColorPriv.h"
#include "SkFlattenableBuffers.h"
#include "SkString.h"
#if SK_SUPPORT_GPU
#include "gl/GrGLEffect.h"
#include "gl/GrGLEffectMatrix.h"
#include "GrContext.h"
#include "GrTBackendEffectFactory.h"
#endif
static inline SkPMColor luma_proc(const SkPMColor a, const SkPMColor b) {
unsigned luma = SkComputeLuminance(SkGetPackedR32(b),
SkGetPackedG32(b),
SkGetPackedB32(b));
return SkAlphaMulQ(a, SkAlpha255To256(luma));
}
template <typename T>
static inline const T* lumaOpA(SkXfermode::Mode mode,
const T* src, const T* dst) {
return SkXfermode::kSrcIn_Mode == mode ? src : dst;
}
template <typename T>
static inline const T* lumaOpB(SkXfermode::Mode mode,
const T* src, const T* dst) {
return SkXfermode::kSrcIn_Mode == mode ? dst : src;
}
SkXfermode* SkLumaMaskXfermode::Create(SkXfermode::Mode mode) {
if (kSrcIn_Mode == mode || kDstIn_Mode == mode) {
return SkNEW_ARGS(SkLumaMaskXfermode, (mode));
}
return NULL;
}
SkLumaMaskXfermode::SkLumaMaskXfermode(SkXfermode::Mode mode)
: fMode(mode) {
SkASSERT(kSrcIn_Mode == mode || kDstIn_Mode == mode);
}
SkLumaMaskXfermode::SkLumaMaskXfermode(SkFlattenableReadBuffer& buffer)
: INHERITED(buffer)
, fMode((SkXfermode::Mode)buffer.readUInt()) {
SkASSERT(kSrcIn_Mode == fMode || kDstIn_Mode == fMode);
}
void SkLumaMaskXfermode::flatten(SkFlattenableWriteBuffer& buffer) const {
INHERITED::flatten(buffer);
buffer.writeUInt(fMode);
}
SkPMColor SkLumaMaskXfermode::xferColor(SkPMColor src, SkPMColor dst) const {
const SkPMColor* a = lumaOpA<SkPMColor>(fMode, &src, &dst);
const SkPMColor* b = lumaOpB<SkPMColor>(fMode, &src, &dst);
return luma_proc(*a, *b);
}
void SkLumaMaskXfermode::xfer32(SkPMColor dst[], const SkPMColor src[],
int count, const SkAlpha aa[]) const {
const SkPMColor* a = lumaOpA<SkPMColor>(fMode, src, dst);
const SkPMColor* b = lumaOpB<SkPMColor>(fMode, src, dst);
if (aa) {
for (int i = 0; i < count; ++i) {
unsigned cov = aa[i];
if (cov) {
unsigned resC = luma_proc(a[i], b[i]);
if (cov < 255) {
resC = SkAlphaMulQ(resC, SkAlpha255To256(cov));
}
dst[i] = resC;
}
}
} else {
for (int i = 0; i < count; ++i) {
dst[i] = luma_proc(a[i], b[i]);
}
}
}
#ifdef SK_DEVELOPER
void SkLumaMaskXfermode::toString(SkString* str) const {
str->printf("SkLumaMaskXfermode: mode: %s",
fMode == kSrcIn_Mode ? "SRC_IN" : "DST_IN");
}
#endif
#if SK_SUPPORT_GPU
//////////////////////////////////////////////////////////////////////////////
class GrGLLumaMaskEffect : public GrGLEffect {
public:
GrGLLumaMaskEffect(const GrBackendEffectFactory&, const GrDrawEffect&);
virtual ~GrGLLumaMaskEffect();
virtual void emitCode(GrGLShaderBuilder*,
const GrDrawEffect&,
EffectKey,
const char* outputColor,
const char* inputColor,
const TextureSamplerArray&) SK_OVERRIDE;
static inline EffectKey GenKey(const GrDrawEffect&, const GrGLCaps&);
private:
typedef GrGLEffect INHERITED;
};
class GrLumaMaskEffect : public GrEffect {
public:
static GrEffectRef* Create(SkXfermode::Mode mode) {
AutoEffectUnref effect(SkNEW_ARGS(GrLumaMaskEffect, (mode)));
return CreateEffectRef(effect);
}
virtual ~GrLumaMaskEffect();
typedef GrGLLumaMaskEffect GLEffect;
static const char* Name() { return "LumaMask"; }
virtual const GrBackendEffectFactory& getFactory() const SK_OVERRIDE;
virtual void getConstantColorComponents(GrColor*, uint32_t*) const SK_OVERRIDE;
SkXfermode::Mode getMode() const { return fMode; }
private:
GrLumaMaskEffect(SkXfermode::Mode);
virtual bool onIsEqual(const GrEffect&) const SK_OVERRIDE;
const SkXfermode::Mode fMode;
};
//////////////////////////////////////////////////////////////////////////////
GrGLLumaMaskEffect::GrGLLumaMaskEffect(const GrBackendEffectFactory& factory,
const GrDrawEffect&)
: INHERITED(factory) {
}
GrGLLumaMaskEffect::~GrGLLumaMaskEffect() {
}
void GrGLLumaMaskEffect::emitCode(GrGLShaderBuilder* builder,
const GrDrawEffect& effect,
EffectKey key,
const char* outputColor,
const char* inputColor,
const TextureSamplerArray& samplers) {
const GrLumaMaskEffect& lumaEffect = effect.castEffect<GrLumaMaskEffect>();
const char* dstColor = builder->dstColor();
SkASSERT(NULL != dstColor);
if (NULL == inputColor) {
inputColor = GrGLSLOnesVecf(4);
}
const char *opA = lumaOpA<char>(lumaEffect.getMode(), inputColor, dstColor);
const char *opB = lumaOpB<char>(lumaEffect.getMode(), inputColor, dstColor);
builder->fsCodeAppendf("\t\tfloat luma = dot(vec3(%f, %f, %f), %s.rgb); \n",
SK_ITU_BT709_LUM_COEFF_R,
SK_ITU_BT709_LUM_COEFF_G,
SK_ITU_BT709_LUM_COEFF_B,
opB);
builder->fsCodeAppendf("\t\t%s = %s * luma;\n", outputColor, opA);
}
GrGLEffect::EffectKey GrGLLumaMaskEffect::GenKey(const GrDrawEffect& drawEffect,
const GrGLCaps&) {
const GrLumaMaskEffect& effect = drawEffect.castEffect<GrLumaMaskEffect>();
return (EffectKey)effect.getMode();
}
//////////////////////////////////////////////////////////////////////////////
GrLumaMaskEffect::GrLumaMaskEffect(SkXfermode::Mode mode)
: fMode(mode) {
this->setWillReadDstColor();
}
GrLumaMaskEffect::~GrLumaMaskEffect() {
}
const GrBackendEffectFactory& GrLumaMaskEffect::getFactory() const {
return GrTBackendEffectFactory<GrLumaMaskEffect>::getInstance();
}
void GrLumaMaskEffect::getConstantColorComponents(GrColor*, uint32_t *validFlags) const {
*validFlags = 0;
}
bool GrLumaMaskEffect::onIsEqual(const GrEffect& sBase) const {
return fMode == CastEffect<GrLumaMaskEffect>(sBase).fMode;
}
//////////////////////////////////////////////////////////////////////////////
bool SkLumaMaskXfermode::asNewEffectOrCoeff(GrContext*, GrEffectRef** effect,
Coeff*, Coeff*,
GrTexture* background) const {
// No background texture support.
if (effect && !background) {
*effect = GrLumaMaskEffect::Create(fMode);
return true;
}
return false;
}
#endif // SK_SUPPORT_GPU

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@ -15,6 +15,7 @@
#include "SkLayerDrawLooper.h"
#include "SkMallocPixelRef.h"
#include "SkXfermode.h"
#include "SkLumaXfermode.h"
#include "SkMagnifierImageFilter.h"
void SkFlattenable::InitializeFlattenables() {
@ -24,6 +25,7 @@ void SkFlattenable::InitializeFlattenables() {
SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkCornerPathEffect)
SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkDashPathEffect)
SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkLayerDrawLooper)
SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkLumaMaskXfermode)
SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkMallocPixelRef)
SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkMagnifierImageFilter)

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@ -46,6 +46,7 @@
#include "SkLayerRasterizer.h"
#include "SkLerpXfermode.h"
#include "SkLightingImageFilter.h"
#include "SkLumaXfermode.h"
#include "SkMagnifierImageFilter.h"
#include "SkMatrixConvolutionImageFilter.h"
#include "SkMergeImageFilter.h"
@ -86,6 +87,7 @@ void SkFlattenable::InitializeFlattenables() {
SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkLayerDrawLooper)
SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkLayerRasterizer)
SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkLerpXfermode)
SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkLumaMaskXfermode)
SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkPath1DPathEffect)
SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(Sk2DPathEffect)
SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkLine2DPathEffect)