Change signature of SkShader::asNewEffect(), implement for SkBitmapProcShader.

Review URL: https://codereview.appspot.com/7086051

git-svn-id: http://skia.googlecode.com/svn/trunk@7153 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
bsalomon@google.com 2013-01-14 16:46:26 +00:00
parent ff06af20fd
commit e197cbf9a3
16 changed files with 117 additions and 188 deletions

View File

@ -93,6 +93,12 @@
'../src/core/SkUtilsArm.h',
],
}],
['skia_gpu == 1', {
'include_dirs': [
'../include/gpu',
'../src/gpu',
],
}],
],
'direct_dependent_settings': {
'include_dirs': [

View File

@ -319,11 +319,10 @@ public:
/**
* If the shader subclass has a GrEffect implementation, this installs an effect on the stage.
* A GrContext pointer is required since effects may need to create textures. The stage
* parameter is necessary to set a texture matrix. It will eventually be removed and this
* function will operate as a GrEffect factory.
* The GrContext may be used by the effect to create textures. The GPU device does not call
* setContext. Instead we pass the paint here in case the shader needs paint info.
*/
virtual bool asNewEffect(GrContext* context, GrEffectStage* stage) const;
virtual GrEffect* asNewEffect(GrContext* context, const SkPaint& paint) const;
//////////////////////////////////////////////////////////////////////////
// Factory methods for stock shaders

View File

@ -336,4 +336,41 @@ bool SkBitmapProcShader::toDumpString(SkString* str) const {
gTileModeName[fState.fTileModeY]);
return true;
}
///////////////////////////////////////////////////////////////////////////////
#if SK_SUPPORT_GPU
#include "GrTextureAccess.h"
#include "effects/GrSingleTextureEffect.h"
#include "SkGr.h"
GrEffect* SkBitmapProcShader::asNewEffect(GrContext* context, const SkPaint& paint) const {
SkMatrix matrix;
matrix.setIDiv(fRawBitmap.width(), fRawBitmap.height());
if (this->hasLocalMatrix()) {
SkMatrix inverse;
if (!this->getLocalMatrix().invert(&inverse)) {
return false;
}
matrix.preConcat(inverse);
}
SkShader::TileMode tm[] = {
(TileMode)fState.fTileModeX,
(TileMode)fState.fTileModeY,
};
// Must set wrap and filter on the sampler before requesting a texture.
GrTextureParams params(tm, paint.isFilterBitmap());
GrTexture* texture = GrLockCachedBitmapTexture(context, fRawBitmap, &params);
if (NULL == texture) {
SkDebugf("Couldn't convert bitmap to texture.\n");
return NULL;
}
GrEffect* effect = SkNEW_ARGS(GrSingleTextureEffect, (texture, matrix, params));
GrUnlockCachedBitmapTexture(texture);
return effect;
}
#endif

View File

@ -33,6 +33,10 @@ public:
virtual bool toDumpString(SkString* str) const;
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkBitmapProcShader)
#if SK_SUPPORT_GPU
GrEffect* asNewEffect(GrContext*, const SkPaint&) const SK_OVERRIDE;
#endif
protected:
SkBitmapProcShader(SkFlattenableReadBuffer& );
virtual void flatten(SkFlattenableWriteBuffer&) const SK_OVERRIDE;

View File

@ -173,7 +173,7 @@ SkShader::GradientType SkShader::asAGradient(GradientInfo* info) const {
return kNone_GradientType;
}
bool SkShader::asNewEffect(GrContext*, GrEffectStage*) const {
GrEffect* SkShader::asNewEffect(GrContext*, const SkPaint&) const {
return false;
}

View File

@ -522,12 +522,8 @@ GrEffect* GrLinearGradient::TestCreate(SkRandom* random,
SkAutoTUnref<SkShader> shader(SkGradientShader::CreateLinear(points,
colors, stops, colorCount,
tm));
GrEffectStage stage;
shader->asNewEffect(context, &stage);
GrAssert(NULL != stage.getEffect());
// const_cast and ref is a hack! Will remove when asNewEffect returns GrEffect*
stage.getEffect()->ref();
return const_cast<GrEffect*>(stage.getEffect());
SkPaint paint;
return shader->asNewEffect(context, paint);
}
/////////////////////////////////////////////////////////////////////
@ -550,22 +546,21 @@ void GrGLLinearGradient::emitCode(GrGLShaderBuilder* builder,
/////////////////////////////////////////////////////////////////////
bool SkLinearGradient::asNewEffect(GrContext* context, GrEffectStage* stage) const {
GrEffect* SkLinearGradient::asNewEffect(GrContext* context, const SkPaint&) const {
SkASSERT(NULL != context && NULL != stage);
SkMatrix matrix;
if (!this->getLocalMatrix().invert(&matrix)) {
return false;
}
matrix.postConcat(fPtsToUnit);
stage->setEffect(SkNEW_ARGS(GrLinearGradient, (context, *this, matrix, fTileMode)))->unref();
return true;
return SkNEW_ARGS(GrLinearGradient, (context, *this, matrix, fTileMode));
}
#else
bool SkLinearGradient::asNewEffect(GrContext*, GrEffectStage*) const {
GrEffect* SkLinearGradient::asNewEffect(GrContext* context, const SkPaint&) const {
SkDEBUGFAIL("Should not call in GPU-less build");
return false;
return NULL;
}
#endif

View File

@ -22,7 +22,7 @@ public:
virtual void shadeSpan16(int x, int y, uint16_t dstC[], int count) SK_OVERRIDE;
virtual BitmapType asABitmap(SkBitmap*, SkMatrix*, TileMode*) const SK_OVERRIDE;
virtual GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE;
virtual bool asNewEffect(GrContext* context, GrEffectStage* stage) const SK_OVERRIDE;
virtual GrEffect* asNewEffect(GrContext* context, const SkPaint&) const SK_OVERRIDE;
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLinearGradient)

View File

@ -545,12 +545,8 @@ GrEffect* GrRadialGradient::TestCreate(SkRandom* random,
SkAutoTUnref<SkShader> shader(SkGradientShader::CreateRadial(center, radius,
colors, stops, colorCount,
tm));
GrEffectStage stage;
shader->asNewEffect(context, &stage);
GrAssert(NULL != stage.getEffect());
// const_cast and ref is a hack! Will remove when asNewEffect returns GrEffect*
stage.getEffect()->ref();
return const_cast<GrEffect*>(stage.getEffect());
SkPaint paint;
return shader->asNewEffect(context, paint);
}
/////////////////////////////////////////////////////////////////////
@ -573,7 +569,7 @@ void GrGLRadialGradient::emitCode(GrGLShaderBuilder* builder,
/////////////////////////////////////////////////////////////////////
bool SkRadialGradient::asNewEffect(GrContext* context, GrEffectStage* stage) const {
GrEffect* SkRadialGradient::asNewEffect(GrContext* context, const SkPaint&) const {
SkASSERT(NULL != context && NULL != stage);
SkMatrix matrix;
@ -581,15 +577,14 @@ bool SkRadialGradient::asNewEffect(GrContext* context, GrEffectStage* stage) con
return false;
}
matrix.postConcat(fPtsToUnit);
stage->setEffect(SkNEW_ARGS(GrRadialGradient, (context, *this, matrix, fTileMode)))->unref();
return true;
return SkNEW_ARGS(GrRadialGradient, (context, *this, matrix, fTileMode));
}
#else
bool SkRadialGradient::asNewEffect(GrContext*, GrEffectStage*) const {
GrEffect* SkRadialGradient::asNewEffect(GrContext* context, const SkPaint&) const {
SkDEBUGFAIL("Should not call in GPU-less build");
return false;
return NULL;
}
#endif

View File

@ -24,7 +24,7 @@ public:
SkMatrix* matrix,
TileMode* xy) const SK_OVERRIDE;
virtual GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE;
virtual bool asNewEffect(GrContext* context, GrEffectStage* stage) const SK_OVERRIDE;
virtual GrEffect* asNewEffect(GrContext* context, const SkPaint&) const SK_OVERRIDE;
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkRadialGradient)

View File

@ -449,12 +449,8 @@ GrEffect* GrSweepGradient::TestCreate(SkRandom* random,
int colorCount = RandomGradientParams(random, colors, &stops, &tmIgnored);
SkAutoTUnref<SkShader> shader(SkGradientShader::CreateSweep(center.fX, center.fY,
colors, stops, colorCount));
GrEffectStage stage;
shader->asNewEffect(context, &stage);
GrAssert(NULL != stage.getEffect());
// const_cast and ref is a hack! Will remove when asNewEffect returns GrEffect*
stage.getEffect()->ref();
return const_cast<GrEffect*>(stage.getEffect());
SkPaint paint;
return shader->asNewEffect(context, paint);
}
/////////////////////////////////////////////////////////////////////
@ -476,21 +472,20 @@ void GrGLSweepGradient::emitCode(GrGLShaderBuilder* builder,
/////////////////////////////////////////////////////////////////////
bool SkSweepGradient::asNewEffect(GrContext* context, GrEffectStage* stage) const {
GrEffect* SkSweepGradient::asNewEffect(GrContext* context, const SkPaint&) const {
SkMatrix matrix;
if (!this->getLocalMatrix().invert(&matrix)) {
return false;
}
matrix.postConcat(fPtsToUnit);
stage->setEffect(SkNEW_ARGS(GrSweepGradient, (context, *this, matrix)))->unref();
return true;
return SkNEW_ARGS(GrSweepGradient, (context, *this, matrix));
}
#else
bool SkSweepGradient::asNewEffect(GrContext*, GrEffectStage*) const {
GrEffect* SkSweepGradient::asNewEffect(GrContext* context, const SkPaint&) const {
SkDEBUGFAIL("Should not call in GPU-less build");
return false;
return NULL;
}
#endif

View File

@ -24,7 +24,7 @@ public:
virtual GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE;
virtual bool asNewEffect(GrContext* context, GrEffectStage* stage) const SK_OVERRIDE;
virtual GrEffect* asNewEffect(GrContext* context, const SkPaint&) const SK_OVERRIDE;
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkSweepGradient)

View File

@ -440,12 +440,8 @@ GrEffect* GrConical2Gradient::TestCreate(SkRandom* random,
center2, radius2,
colors, stops, colorCount,
tm));
GrEffectStage stage;
shader->asNewEffect(context, &stage);
GrAssert(NULL != stage.getEffect());
// const_cast and ref is a hack! Will remove when asNewEffect returns GrEffect*
stage.getEffect()->ref();
return const_cast<GrEffect*>(stage.getEffect());
SkPaint paint;
return shader->asNewEffect(context, paint);
}
@ -688,8 +684,7 @@ GrGLEffect::EffectKey GrGLConical2Gradient::GenKey(const GrEffectStage& s, const
/////////////////////////////////////////////////////////////////////
bool SkTwoPointConicalGradient::asNewEffect(GrContext* context,
GrEffectStage* stage) const {
GrEffect* SkTwoPointConicalGradient::asNewEffect(GrContext* context, const SkPaint&) const {
SkASSERT(NULL != context && NULL != stage);
SkASSERT(fPtsToUnit.isIdentity());
// invert the localM, translate to center1, rotate so center2 is on x axis.
@ -709,16 +704,14 @@ bool SkTwoPointConicalGradient::asNewEffect(GrContext* context,
matrix.postConcat(rot);
}
stage->setEffect(SkNEW_ARGS(GrConical2Gradient, (context, *this, matrix, fTileMode)))->unref();
return true;
return SkNEW_ARGS(GrConical2Gradient, (context, *this, matrix, fTileMode));
}
#else
bool SkTwoPointConicalGradient::asNewEffect(GrContext*, GrEffectStage*) const {
GrEffect* SkTwoPointConicalGradient::asNewEffect(GrContext* context, const SkPaint&) const {
SkDEBUGFAIL("Should not call in GPU-less build");
return false;
return NULL;
}
#endif

View File

@ -61,7 +61,7 @@ public:
SkMatrix* matrix,
TileMode* xy) const;
virtual SkShader::GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE;
virtual bool asNewEffect(GrContext* context, GrEffectStage* stage) const SK_OVERRIDE;
virtual GrEffect* asNewEffect(GrContext* context, const SkPaint& paint) const SK_OVERRIDE;
SkScalar getCenterX1() const { return SkPoint::Distance(fCenter1, fCenter2); }
SkScalar getStartRadius() const { return fRadius1; }

View File

@ -463,7 +463,7 @@ GrEffect* GrRadial2Gradient::TestCreate(SkRandom* random,
do {
center2.set(random->nextUScalar1(), random->nextUScalar1());
radius2 = random->nextUScalar1 ();
// There is a bug in two point radial gradients with idenitical radii
// There is a bug in two point radial gradients with identical radii
} while (radius1 == radius2);
SkColor colors[kMaxRandomGradientColors];
@ -475,12 +475,8 @@ GrEffect* GrRadial2Gradient::TestCreate(SkRandom* random,
center2, radius2,
colors, stops, colorCount,
tm));
GrEffectStage stage;
shader->asNewEffect(context, &stage);
GrAssert(NULL != stage.getEffect());
// const_cast and ref is a hack! Will remove when asNewEffect returns GrEffect*
stage.getEffect()->ref();
return const_cast<GrEffect*>(stage.getEffect());
SkPaint paint;
return shader->asNewEffect(context, paint);
}
/////////////////////////////////////////////////////////////////////
@ -661,8 +657,7 @@ GrGLEffect::EffectKey GrGLRadial2Gradient::GenKey(const GrEffectStage& s, const
/////////////////////////////////////////////////////////////////////
bool SkTwoPointRadialGradient::asNewEffect(GrContext* context,
GrEffectStage* stage) const {
GrEffect* SkTwoPointRadialGradient::asNewEffect(GrContext* context, const SkPaint&) const {
SkASSERT(NULL != context && NULL != stage);
// invert the localM, translate to center1 (fPtsToUni), rotate so center2 is on x axis.
SkMatrix matrix;
@ -680,15 +675,14 @@ bool SkTwoPointRadialGradient::asNewEffect(GrContext* context,
matrix.postConcat(rot);
}
stage->setEffect(SkNEW_ARGS(GrRadial2Gradient, (context, *this, matrix, fTileMode)))->unref();
return true;
return SkNEW_ARGS(GrRadial2Gradient, (context, *this, matrix, fTileMode));
}
#else
bool SkTwoPointRadialGradient::asNewEffect(GrContext*, GrEffectStage*) const {
GrEffect* SkTwoPointRadialGradient::asNewEffect(GrContext* context, const SkPaint&) const {
SkDEBUGFAIL("Should not call in GPU-less build");
return false;
return NULL;
}
#endif

View File

@ -23,7 +23,7 @@ public:
SkMatrix* matrix,
TileMode* xy) const SK_OVERRIDE;
virtual GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE;
virtual bool asNewEffect(GrContext* context, GrEffectStage* stage) const SK_OVERRIDE;
virtual GrEffect* asNewEffect(GrContext* context, const SkPaint&) const SK_OVERRIDE;
virtual void shadeSpan(int x, int y, SkPMColor* dstCParam,
int count) SK_OVERRIDE;

View File

@ -474,7 +474,6 @@ inline bool skPaint2GrPaintNoShader(SkGpuDevice* dev,
const SkPaint& skPaint,
bool justAlpha,
bool constantColor,
SkGpuDevice::SkAutoCachedTexture* act,
GrPaint* grPaint) {
grPaint->setDither(skPaint.isDither());
@ -537,81 +536,36 @@ inline bool skPaint2GrPaintNoShader(SkGpuDevice* dev,
inline bool skPaint2GrPaintShader(SkGpuDevice* dev,
const SkPaint& skPaint,
bool constantColor,
SkGpuDevice::SkAutoCachedTexture textures[GrPaint::kMaxColorStages],
GrPaint* grPaint) {
SkShader* shader = skPaint.getShader();
if (NULL == shader) {
return skPaint2GrPaintNoShader(dev,
skPaint,
false,
constantColor,
&textures[kColorFilterTextureIdx],
grPaint);
} else if (!skPaint2GrPaintNoShader(dev, skPaint, true, false,
&textures[kColorFilterTextureIdx], grPaint)) {
return skPaint2GrPaintNoShader(dev, skPaint, false, constantColor, grPaint);
} else if (!skPaint2GrPaintNoShader(dev, skPaint, true, false, grPaint)) {
return false;
}
GrEffectStage* stage = grPaint->colorStage(kShaderTextureIdx);
if (shader->asNewEffect(dev->context(), stage)) {
SkAutoTUnref<GrEffect> effect(shader->asNewEffect(dev->context(), skPaint));
if (NULL != effect.get()) {
grPaint->colorStage(kShaderTextureIdx)->setEffect(effect);
return true;
}
SkBitmap bitmap;
SkMatrix matrix;
SkShader::TileMode tileModes[2];
SkShader::BitmapType bmptype = shader->asABitmap(&bitmap, &matrix, tileModes);
// We still don't have SkColorShader::asNewEffect() implemented.
SkShader::GradientInfo info;
SkColor color;
if (SkShader::kNone_BitmapType == bmptype) {
SkShader::GradientInfo info;
SkColor color;
info.fColors = &color;
info.fColorOffsets = NULL;
info.fColorCount = 1;
if (SkShader::kColor_GradientType == shader->asAGradient(&info)) {
SkPaint copy(skPaint);
copy.setShader(NULL);
// modulate the paint alpha by the shader's solid color alpha
U8CPU newA = SkMulDiv255Round(SkColorGetA(color), copy.getAlpha());
copy.setColor(SkColorSetA(color, newA));
return skPaint2GrPaintNoShader(dev,
copy,
false,
constantColor,
&textures[kColorFilterTextureIdx],
grPaint);
}
return false;
info.fColors = &color;
info.fColorOffsets = NULL;
info.fColorCount = 1;
if (SkShader::kColor_GradientType == shader->asAGradient(&info)) {
SkPaint copy(skPaint);
copy.setShader(NULL);
// modulate the paint alpha by the shader's solid color alpha
U8CPU newA = SkMulDiv255Round(SkColorGetA(color), copy.getAlpha());
copy.setColor(SkColorSetA(color, newA));
return skPaint2GrPaintNoShader(dev, copy, false, constantColor, grPaint);
}
// since our texture coords will be in local space, we whack the texture
// matrix to map them back into 0...1 before we load it
if (shader->hasLocalMatrix()) {
SkMatrix inverse;
if (!shader->getLocalMatrix().invert(&inverse)) {
return false;
}
matrix.preConcat(inverse);
}
// Must set wrap and filter on the sampler before requesting a texture.
GrTextureParams params(tileModes, skPaint.isFilterBitmap());
GrTexture* texture = textures[kShaderTextureIdx].set(dev, bitmap, &params);
if (NULL == texture) {
SkDebugf("Couldn't convert bitmap to texture.\n");
return false;
}
if (SkShader::kDefault_BitmapType == bmptype) {
SkScalar sx = SkFloatToScalar(1.f / bitmap.width());
SkScalar sy = SkFloatToScalar(1.f / bitmap.height());
matrix.postScale(sx, sy);
}
stage->setEffect(SkNEW_ARGS(GrSingleTextureEffect, (texture, matrix, params)))->unref();
return true;
return false;
}
}
@ -625,12 +579,7 @@ void SkGpuDevice::drawPaint(const SkDraw& draw, const SkPaint& paint) {
CHECK_SHOULD_DRAW(draw, false);
GrPaint grPaint;
SkAutoCachedTexture textures[GrPaint::kMaxColorStages];
if (!skPaint2GrPaintShader(this,
paint,
true,
textures,
&grPaint)) {
if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
return;
}
@ -661,12 +610,7 @@ void SkGpuDevice::drawPoints(const SkDraw& draw, SkCanvas::PointMode mode,
}
GrPaint grPaint;
SkAutoCachedTexture textures[GrPaint::kMaxColorStages];
if (!skPaint2GrPaintShader(this,
paint,
true,
textures,
&grPaint)) {
if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
return;
}
@ -723,12 +667,7 @@ void SkGpuDevice::drawRect(const SkDraw& draw, const SkRect& rect,
}
GrPaint grPaint;
SkAutoCachedTexture textures[GrPaint::kMaxColorStages];
if (!skPaint2GrPaintShader(this,
paint,
true,
textures,
&grPaint)) {
if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
return;
}
fContext->drawRect(grPaint, rect, doStroke ? width : -1);
@ -966,12 +905,7 @@ void SkGpuDevice::drawPath(const SkDraw& draw, const SkPath& origSrcPath,
CHECK_SHOULD_DRAW(draw, false);
GrPaint grPaint;
SkAutoCachedTexture textures[GrPaint::kMaxColorStages];
if (!skPaint2GrPaintShader(this,
paint,
true,
textures,
&grPaint)) {
if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
return;
}
@ -1199,10 +1133,9 @@ void SkGpuDevice::drawBitmapCommon(const SkDraw& draw,
}
GrPaint grPaint;
SkAutoCachedTexture colorLutTexture;
bool alphaOnly = !(SkBitmap::kA8_Config == bitmap.config());
if (!skPaint2GrPaintNoShader(this, paint, alphaOnly, false, &colorLutTexture, &grPaint)) {
if (!skPaint2GrPaintNoShader(this, paint, alphaOnly, false, &grPaint)) {
return;
}
GrTextureParams params;
@ -1472,8 +1405,7 @@ void SkGpuDevice::drawSprite(const SkDraw& draw, const SkBitmap& bitmap,
int h = bitmap.height();
GrPaint grPaint;
SkAutoCachedTexture colorLutTexture;
if(!skPaint2GrPaintNoShader(this, paint, true, false, &colorLutTexture, &grPaint)) {
if(!skPaint2GrPaintNoShader(this, paint, true, false, &grPaint)) {
return;
}
@ -1550,10 +1482,9 @@ void SkGpuDevice::drawDevice(const SkDraw& draw, SkDevice* device,
CHECK_SHOULD_DRAW(draw, true);
GrPaint grPaint;
SkAutoCachedTexture colorLutTexture;
grPaint.colorStage(kBitmapTextureIdx)->reset();
if (!dev->bindDeviceAsTexture(&grPaint) ||
!skPaint2GrPaintNoShader(this, paint, true, false, &colorLutTexture, &grPaint)) {
!skPaint2GrPaintNoShader(this, paint, true, false, &grPaint)) {
return;
}
@ -1648,23 +1579,13 @@ void SkGpuDevice::drawVertices(const SkDraw& draw, SkCanvas::VertexMode vmode,
CHECK_SHOULD_DRAW(draw, false);
GrPaint grPaint;
SkAutoCachedTexture textures[GrPaint::kMaxColorStages];
// we ignore the shader if texs is null.
if (NULL == texs) {
if (!skPaint2GrPaintNoShader(this,
paint,
false,
NULL == colors,
&textures[kColorFilterTextureIdx],
&grPaint)) {
if (!skPaint2GrPaintNoShader(this, paint, false, NULL == colors, &grPaint)) {
return;
}
} else {
if (!skPaint2GrPaintShader(this,
paint,
NULL == colors,
textures,
&grPaint)) {
if (!skPaint2GrPaintShader(this, paint, NULL == colors, &grPaint)) {
return;
}
}
@ -1763,12 +1684,7 @@ void SkGpuDevice::drawText(const SkDraw& draw, const void* text,
SkDraw myDraw(draw);
GrPaint grPaint;
SkAutoCachedTexture textures[GrPaint::kMaxColorStages];
if (!skPaint2GrPaintShader(this,
paint,
true,
textures,
&grPaint)) {
if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
return;
}
GrTextContext context(fContext, grPaint);
@ -1791,12 +1707,7 @@ void SkGpuDevice::drawPosText(const SkDraw& draw, const void* text,
SkDraw myDraw(draw);
GrPaint grPaint;
SkAutoCachedTexture textures[GrPaint::kMaxColorStages];
if (!skPaint2GrPaintShader(this,
paint,
true,
textures,
&grPaint)) {
if (!skPaint2GrPaintShader(this, paint, true, &grPaint)) {
return;
}
GrTextContext context(fContext, grPaint);