Revert "GaussianConvolutionFragmentProcessor uses GrTextureEffect."

This reverts commit eb48024f8b.

Reason for revert: Failing additional layout test on Win10

Original change's description:
> GaussianConvolutionFragmentProcessor uses GrTextureEffect.
> 
> Also removes now unused GrShaderVar::appendArrayAccess.
> 
> Bug: skia:10139
> 
> Change-Id: Ic2583a6822e88510551b1031f3fb130266b3f395
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/283440
> Commit-Queue: Brian Salomon <bsalomon@google.com>
> Reviewed-by: Michael Ludwig <michaelludwig@google.com>

TBR=bsalomon@google.com,michaelludwig@google.com

Change-Id: I7403e97c51ba966e52679b5a048a962795c4271b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:10139
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/283636
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
This commit is contained in:
Brian Salomon 2020-04-15 12:56:13 +00:00 committed by Skia Commit-Bot
parent e6995c74cd
commit 68626439f3
4 changed files with 235 additions and 130 deletions

View File

@ -71,14 +71,19 @@ static float adjust_sigma(float sigma, int maxTextureSize, int *scaleFactor, int
return sigma;
}
static GrSamplerState::WrapMode to_wrap_mode(SkTileMode tileMode) {
static GrTextureDomain::Mode to_texture_domain_mode(SkTileMode tileMode) {
switch (tileMode) {
case SkTileMode::kClamp: return GrSamplerState::WrapMode::kClamp;
case SkTileMode::kDecal: return GrSamplerState::WrapMode::kClampToBorder;
case SkTileMode::kMirror: return GrSamplerState::WrapMode::kMirrorRepeat;
case SkTileMode::kRepeat: return GrSamplerState::WrapMode::kRepeat;
case SkTileMode::kClamp:
return GrTextureDomain::kClamp_Mode;
case SkTileMode::kDecal:
return GrTextureDomain::kDecal_Mode;
case SkTileMode::kMirror:
// TODO (michaelludwig) - Support mirror mode, treat as repeat for now
case SkTileMode::kRepeat:
return GrTextureDomain::kRepeat_Mode;
default:
SK_ABORT("Unsupported tile mode.");
}
SkUNREACHABLE;
}
/**
@ -96,7 +101,7 @@ static void convolve_gaussian_1d(GrRenderTargetContext* renderTargetContext,
SkTileMode mode,
int bounds[2]) {
GrPaint paint;
auto wm = to_wrap_mode(mode);
auto domainMode = to_texture_domain_mode(mode);
int realBounds[2];
if (bounds) {
realBounds[0] = bounds[0]; realBounds[1] = bounds[1];
@ -106,8 +111,7 @@ static void convolve_gaussian_1d(GrRenderTargetContext* renderTargetContext,
realBounds[1] = direction == Direction::kX ? proxy->width() : proxy->height();
}
std::unique_ptr<GrFragmentProcessor> conv(GrGaussianConvolutionFragmentProcessor::Make(
std::move(srcView), srcAlphaType, direction, radius, sigma, wm, realBounds,
*renderTargetContext->caps()));
std::move(srcView), srcAlphaType, direction, radius, sigma, domainMode, realBounds));
paint.addColorFragmentProcessor(std::move(conv));
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
auto srcRect = SkRect::Make(rtcRect.makeOffset(rtcToSrcOffset));
@ -115,20 +119,6 @@ static void convolve_gaussian_1d(GrRenderTargetContext* renderTargetContext,
SkRect::Make(rtcRect), srcRect);
}
static GrTextureDomain::Mode to_texture_domain_mode(SkTileMode tileMode) {
switch (tileMode) {
case SkTileMode::kClamp:
return GrTextureDomain::kClamp_Mode;
case SkTileMode::kDecal:
return GrTextureDomain::kDecal_Mode;
case SkTileMode::kMirror:
// TODO (michaelludwig) - Support mirror mode, treat as repeat for now
case SkTileMode::kRepeat:
return GrTextureDomain::kRepeat_Mode;
}
SkUNREACHABLE;
}
static std::unique_ptr<GrRenderTargetContext> convolve_gaussian_2d(GrRecordingContext* context,
GrSurfaceProxyView srcView,
GrColorType srcColorType,

View File

@ -130,6 +130,10 @@ public:
/** Write a declaration of this variable to out. */
void appendDecl(const GrShaderCaps*, SkString* out) const;
void appendArrayAccess(const char* indexName, SkString* out) const {
out->appendf("%s[%s]", this->getName().c_str(), indexName);
}
private:
GrSLType fType;
TypeModifier fTypeModifier;

View File

@ -9,7 +9,6 @@
#include "src/gpu/GrTexture.h"
#include "src/gpu/GrTextureProxy.h"
#include "src/gpu/effects/GrTextureEffect.h"
#include "src/gpu/glsl/GrGLSLFragmentProcessor.h"
#include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h"
#include "src/gpu/glsl/GrGLSLProgramDataManager.h"
@ -30,7 +29,8 @@ protected:
private:
UniformHandle fKernelUni;
UniformHandle fIncrementUni;
UniformHandle fImageIncrementUni;
UniformHandle fBoundsUni;
typedef GrGLSLFragmentProcessor INHERITED;
};
@ -40,54 +40,136 @@ void GrGLConvolutionEffect::emitCode(EmitArgs& args) {
args.fFp.cast<GrGaussianConvolutionFragmentProcessor>();
GrGLSLUniformHandler* uniformHandler = args.fUniformHandler;
const char* inc;
fIncrementUni = uniformHandler->addUniform(&ce, kFragment_GrShaderFlag, kHalf2_GrSLType,
"Increment", &inc);
fImageIncrementUni = uniformHandler->addUniform(&ce, kFragment_GrShaderFlag, kHalf2_GrSLType,
"ImageIncrement");
if (ce.useBounds()) {
fBoundsUni = uniformHandler->addUniform(&ce, kFragment_GrShaderFlag, kHalf2_GrSLType,
"Bounds");
}
int width = ce.width();
int arrayCount = (width + 3) / 4;
SkASSERT(4 * arrayCount >= width);
const char* kernel;
fKernelUni = uniformHandler->addUniformArray(&ce, kFragment_GrShaderFlag, kHalf4_GrSLType,
"Kernel", arrayCount, &kernel);
"Kernel", arrayCount);
GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
auto coords2D = fragBuilder->ensureCoords2D(args.fTransformedCoords[0].fVaryingPoint,
ce.sampleMatrix());
SkString coords2D = fragBuilder->ensureCoords2D(args.fTransformedCoords[0].fVaryingPoint,
ce.sampleMatrix());
fragBuilder->codeAppendf("%s = half4(0, 0, 0, 0);", args.fOutputColor);
fragBuilder->codeAppendf("float2 coord = %s - %d.0 * %s;", coords2D.c_str(), ce.radius(), inc);
const GrShaderVar& kernel = uniformHandler->getUniformVariable(fKernelUni);
const char* imgInc = uniformHandler->getUniformCStr(fImageIncrementUni);
fragBuilder->codeAppendf("float2 coord = %s - %d.0 * %s;", coords2D.c_str(), ce.radius(), imgInc);
fragBuilder->codeAppend("float2 coordSampled = half2(0, 0);");
// Manually unroll loop because some drivers don't; yields 20-30% speedup.
static constexpr const char* kVecSuffix[4] = {".x", ".y", ".z", ".w"};
const char* kVecSuffix[4] = {".x", ".y", ".z", ".w"};
for (int i = 0; i < width; i++) {
SkString index;
SkString kernelIndex;
kernelIndex.printf("%s[%d]", kernel, i/4);
index.appendS32(i / 4);
kernel.appendArrayAccess(index.c_str(), &kernelIndex);
kernelIndex.append(kVecSuffix[i & 0x3]);
fragBuilder->codeAppend("coordSampled = coord;");
auto sample = this->invokeChild(0, args, "coordSampled");
fragBuilder->codeAppendf("%s += %s", args.fOutputColor, sample.c_str());
fragBuilder->codeAppendf(" * %s;", kernelIndex.c_str());
fragBuilder->codeAppendf("coord += %s;", inc);
if (ce.useBounds()) {
// We used to compute a bool indicating whether we're in bounds or not, cast it to a
// float, and then mul weight*texture_sample by the float. However, the Adreno 430 seems
// to have a bug that caused corruption.
const char* bounds = uniformHandler->getUniformCStr(fBoundsUni);
const char* component = ce.direction() == Direction::kY ? "y" : "x";
switch (ce.mode()) {
case GrTextureDomain::kClamp_Mode: {
fragBuilder->codeAppendf("coordSampled.%s = clamp(coord.%s, %s.x, %s.y);\n",
component, component, bounds, bounds);
break;
}
// Deferring implementing kMirrorRepeat until we use DomainEffects as
// child processors. Fallback to Repeat.
case GrTextureDomain::kMirrorRepeat_Mode:
case GrTextureDomain::kRepeat_Mode: {
fragBuilder->codeAppendf("coordSampled.%s = "
"mod(coord.%s - %s.x, %s.y - %s.x) + %s.x;\n",
component, component, bounds, bounds, bounds, bounds);
break;
}
case GrTextureDomain::kDecal_Mode: {
fragBuilder->codeAppendf("if (coord.%s >= %s.x && coord.%s <= %s.y) {",
component, bounds, component, bounds);
break;
}
default: {
SK_ABORT("Unsupported operation.");
}
}
}
fragBuilder->codeAppendf("%s += ", args.fOutputColor);
fragBuilder->appendTextureLookup(args.fTexSamplers[0], "coordSampled");
fragBuilder->codeAppendf(" * %s;\n", kernelIndex.c_str());
if (GrTextureDomain::kDecal_Mode == ce.mode()) {
fragBuilder->codeAppend("}");
}
fragBuilder->codeAppendf("coord += %s;\n", imgInc);
}
fragBuilder->codeAppendf("%s *= %s;", args.fOutputColor, args.fInputColor);
fragBuilder->codeAppendf("%s *= %s;\n", args.fOutputColor, args.fInputColor);
}
void GrGLConvolutionEffect::onSetData(const GrGLSLProgramDataManager& pdman,
const GrFragmentProcessor& processor) {
const auto& conv = processor.cast<GrGaussianConvolutionFragmentProcessor>();
const GrGaussianConvolutionFragmentProcessor& conv =
processor.cast<GrGaussianConvolutionFragmentProcessor>();
const auto& view = conv.textureSampler(0).view();
GrSurfaceProxy* proxy = view.proxy();
GrTexture& texture = *proxy->peekTexture();
float increment[2] = {};
increment[static_cast<int>(conv.direction())] = 1;
pdman.set2fv(fIncrementUni, 1, increment);
float imageIncrement[2] = {0};
float ySign = view.origin() != kTopLeft_GrSurfaceOrigin ? 1.0f : -1.0f;
switch (conv.direction()) {
case Direction::kX:
imageIncrement[0] = 1.0f / texture.width();
break;
case Direction::kY:
imageIncrement[1] = ySign / texture.height();
break;
default:
SK_ABORT("Unknown filter direction.");
}
pdman.set2fv(fImageIncrementUni, 1, imageIncrement);
if (conv.useBounds()) {
float bounds[2] = {0};
bounds[0] = conv.bounds()[0];
bounds[1] = conv.bounds()[1];
if (GrTextureDomain::kClamp_Mode == conv.mode()) {
bounds[0] += SK_ScalarHalf;
bounds[1] -= SK_ScalarHalf;
}
if (Direction::kX == conv.direction()) {
SkScalar inv = SkScalarInvert(SkIntToScalar(texture.width()));
bounds[0] *= inv;
bounds[1] *= inv;
} else {
SkScalar inv = SkScalarInvert(SkIntToScalar(texture.height()));
if (view.origin() != kTopLeft_GrSurfaceOrigin) {
float tmp = bounds[0];
bounds[0] = 1.0f - (inv * bounds[1]);
bounds[1] = 1.0f - (inv * tmp);
} else {
bounds[0] *= inv;
bounds[1] *= inv;
}
}
SkASSERT(bounds[0] <= bounds[1]);
pdman.set2f(fBoundsUni, bounds[0], bounds[1]);
}
int width = conv.width();
int arrayCount = (width + 3) / 4;
SkASSERT(4 * arrayCount >= width);
pdman.set4fv(fKernelUni, arrayCount, conv.kernel());
@ -95,8 +177,15 @@ void GrGLConvolutionEffect::onSetData(const GrGLSLProgramDataManager& pdman,
void GrGLConvolutionEffect::GenKey(const GrProcessor& processor, const GrShaderCaps&,
GrProcessorKeyBuilder* b) {
const auto& conv = processor.cast<GrGaussianConvolutionFragmentProcessor>();
b->add32(conv.radius());
const GrGaussianConvolutionFragmentProcessor& conv =
processor.cast<GrGaussianConvolutionFragmentProcessor>();
uint32_t key = conv.radius();
key <<= 3;
if (conv.useBounds()) {
key |= Direction::kY == conv.direction() ? 0x4 : 0x0;
}
key |= static_cast<uint32_t>(conv.mode());
b->add32(key);
}
///////////////////////////////////////////////////////////////////////////////
@ -126,67 +215,79 @@ static void fill_in_1D_gaussian_kernel(float* kernel, int width, float gaussianS
}
}
std::unique_ptr<GrFragmentProcessor> GrGaussianConvolutionFragmentProcessor::Make(
GrGaussianConvolutionFragmentProcessor::GrGaussianConvolutionFragmentProcessor(
GrSurfaceProxyView view,
SkAlphaType alphaType,
Direction dir,
int halfWidth,
float gaussianSigma,
GrSamplerState::WrapMode wm,
const int bounds[2],
const GrCaps& caps) {
std::unique_ptr<GrFragmentProcessor> child;
GrSamplerState sampler;
switch (dir) {
case Direction::kX: sampler.setWrapModeX(wm); break;
case Direction::kY: sampler.setWrapModeY(wm); break;
}
if (bounds) {
SkASSERT(bounds[0] < bounds[1]);
SkRect subset;
switch (dir) {
case Direction::kX:
subset = SkRect::MakeLTRB(bounds[0], 0, bounds[1], view.height());
break;
case Direction::kY:
subset = SkRect::MakeLTRB(0, bounds[0], view.width(), bounds[1]);
break;
}
child = GrTextureEffect::MakeSubset(std::move(view), alphaType, SkMatrix::I(), sampler,
subset, caps);
} else {
child = GrTextureEffect::Make(std::move(view), alphaType, SkMatrix::I(), sampler, caps);
}
return std::unique_ptr<GrFragmentProcessor>(new GrGaussianConvolutionFragmentProcessor(
std::move(child), dir, halfWidth, gaussianSigma));
}
GrGaussianConvolutionFragmentProcessor::GrGaussianConvolutionFragmentProcessor(
std::unique_ptr<GrFragmentProcessor> child,
Direction direction,
int radius,
float gaussianSigma)
float gaussianSigma,
GrTextureDomain::Mode mode,
int bounds[2])
: INHERITED(kGrGaussianConvolutionFragmentProcessor_ClassID,
ProcessorOptimizationFlags(child.get()))
ModulateForSamplerOptFlags(alphaType, mode == GrTextureDomain::kDecal_Mode))
, fCoordTransform(view.proxy(), view.origin())
, fTextureSampler(std::move(view))
, fRadius(radius)
, fDirection(direction) {
child->setSampledWithExplicitCoords();
this->registerChildProcessor(std::move(child));
SkASSERT(radius <= kMaxKernelRadius);
fill_in_1D_gaussian_kernel(fKernel, this->width(), gaussianSigma, this->radius());
, fDirection(direction)
, fMode(mode) {
this->addCoordTransform(&fCoordTransform);
this->setTextureSamplerCnt(1);
SkASSERT(radius <= kMaxKernelRadius);
fill_in_1D_gaussian_kernel(fKernel, this->width(), gaussianSigma, this->radius());
// SkGpuBlurUtils is not as aggressive as it once was about avoiding domains. So we check
// here if we can omit the domain. TODO: remove this when this effect uses a child to
// sample the texture.
auto samplerProxy = fTextureSampler.proxy();
if (!samplerProxy->isFullyLazy()) {
int wh = (fDirection == Direction::kX) ? samplerProxy->backingStoreDimensions().width()
: samplerProxy->backingStoreDimensions().height();
if (bounds[0] == 0 && bounds[1] == wh) {
bool useSampler = false;
GrSamplerState::WrapMode samplerMode = GrSamplerState::WrapMode::kClamp;
switch (fMode) {
case GrTextureDomain::kClamp_Mode:
case GrTextureDomain::kIgnore_Mode:
useSampler = true;
break;
case GrTextureDomain::kRepeat_Mode:
useSampler = true;
samplerMode = GrSamplerState::WrapMode::kRepeat;
break;
case GrTextureDomain::kMirrorRepeat_Mode:
useSampler = true;
samplerMode = GrSamplerState::WrapMode::kMirrorRepeat;
break;
case GrTextureDomain::kDecal_Mode:
// Not sure if we support this in HW without having GrCaps here.
// Just wait until we replace this with GrTextureEffect.
break;
}
if (useSampler) {
fMode = GrTextureDomain::kIgnore_Mode;
if (fDirection == Direction::kX) {
fTextureSampler.samplerState().setWrapModeX(samplerMode);
} else {
fTextureSampler.samplerState().setWrapModeY(samplerMode);
}
}
}
}
memcpy(fBounds, bounds, sizeof(fBounds));
}
GrGaussianConvolutionFragmentProcessor::GrGaussianConvolutionFragmentProcessor(
const GrGaussianConvolutionFragmentProcessor& that)
: INHERITED(kGrGaussianConvolutionFragmentProcessor_ClassID, that.optimizationFlags())
, fCoordTransform(that.fCoordTransform)
, fTextureSampler(that.fTextureSampler)
, fRadius(that.fRadius)
, fDirection(that.fDirection) {
auto child = that.childProcessor(0).clone();
child->setSampledWithExplicitCoords();
this->registerChildProcessor(std::move(child));
memcpy(fKernel, that.fKernel, that.width() * sizeof(float));
, fDirection(that.fDirection)
, fMode(that.fMode) {
this->addCoordTransform(&fCoordTransform);
this->setTextureSamplerCnt(1);
memcpy(fKernel, that.fKernel, that.width() * sizeof(float));
memcpy(fBounds, that.fBounds, sizeof(fBounds));
}
void GrGaussianConvolutionFragmentProcessor::onGetGLSLProcessorKey(const GrShaderCaps& caps,
@ -199,9 +300,12 @@ GrGLSLFragmentProcessor* GrGaussianConvolutionFragmentProcessor::onCreateGLSLIns
}
bool GrGaussianConvolutionFragmentProcessor::onIsEqual(const GrFragmentProcessor& sBase) const {
const auto& that = sBase.cast<GrGaussianConvolutionFragmentProcessor>();
return this->radius() == that.radius() && this->direction() == that.direction() &&
std::equal(fKernel, fKernel + this->width(), that.fKernel);
const GrGaussianConvolutionFragmentProcessor& s =
sBase.cast<GrGaussianConvolutionFragmentProcessor>();
return (this->radius() == s.radius() && this->direction() == s.direction() &&
this->mode() == s.mode() &&
0 == memcmp(fBounds, s.fBounds, sizeof(fBounds)) &&
0 == memcmp(fKernel, s.fKernel, this->width() * sizeof(float)));
}
///////////////////////////////////////////////////////////////////////////////
@ -213,27 +317,25 @@ std::unique_ptr<GrFragmentProcessor> GrGaussianConvolutionFragmentProcessor::Tes
GrProcessorTestData* d) {
auto [view, ct, at] = d->randomView();
Direction dir;
int bounds[2];
do {
if (d->fRandom->nextBool()) {
dir = Direction::kX;
bounds[0] = d->fRandom->nextRangeU(0, view.width() - 1);
bounds[1] = d->fRandom->nextRangeU(0, view.width() - 1);
} else {
dir = Direction::kY;
bounds[0] = d->fRandom->nextRangeU(0, view.height() - 1);
bounds[1] = d->fRandom->nextRangeU(0, view.height() - 1);
}
} while (bounds[0] == bounds[1]);
std::sort(bounds, bounds + 2);
int modeIdx = d->fRandom->nextRangeU(0, GrTextureDomain::kModeCount-1);
Direction dir;
if (d->fRandom->nextBool()) {
dir = Direction::kX;
bounds[0] = d->fRandom->nextRangeU(0, view.width()-2);
bounds[1] = d->fRandom->nextRangeU(bounds[0]+1, view.width()-1);
} else {
dir = Direction::kY;
bounds[0] = d->fRandom->nextRangeU(0, view.height()-2);
bounds[1] = d->fRandom->nextRangeU(bounds[0]+1, view.height()-1);
}
auto wm = static_cast<GrSamplerState::WrapMode>(
d->fRandom->nextULessThan(GrSamplerState::kWrapModeCount));
int radius = d->fRandom->nextRangeU(1, kMaxKernelRadius);
float sigma = radius / 3.f;
return GrGaussianConvolutionFragmentProcessor::Make(std::move(view), at, dir, radius, sigma, wm,
bounds, *d->caps());
return GrGaussianConvolutionFragmentProcessor::Make(std::move(view), at, dir, radius, sigma,
static_cast<GrTextureDomain::Mode>(modeIdx),
bounds);
}
#endif

View File

@ -10,6 +10,7 @@
#include "src/gpu/GrCoordTransform.h"
#include "src/gpu/GrFragmentProcessor.h"
#include "src/gpu/effects/GrTextureDomain.h"
/**
* A 1D Gaussian convolution effect. The kernel is computed as an array of 2 * half-width weights.
@ -20,32 +21,37 @@ class GrGaussianConvolutionFragmentProcessor : public GrFragmentProcessor {
public:
enum class Direction { kX, kY };
/**
* Convolve with a Gaussian kernel. Bounds limits the coords sampled by the effect along the
* axis indicated by Direction. The WrapMode is applied to the bounds interval. If bounds is
* nullptr then the full proxy width/height is used.
*/
/// Convolve with a Gaussian kernel
static std::unique_ptr<GrFragmentProcessor> Make(GrSurfaceProxyView view,
SkAlphaType alphaType,
Direction dir,
int halfWidth,
float gaussianSigma,
GrSamplerState::WrapMode,
const int bounds[2],
const GrCaps& caps);
GrTextureDomain::Mode mode,
int* bounds) {
return std::unique_ptr<GrFragmentProcessor>(new GrGaussianConvolutionFragmentProcessor(
std::move(view), alphaType, dir, halfWidth, gaussianSigma, mode, bounds));
}
const float* kernel() const { return fKernel; }
const int* bounds() const { return fBounds; }
bool useBounds() const { return fMode != GrTextureDomain::kIgnore_Mode; }
int radius() const { return fRadius; }
int width() const { return 2 * fRadius + 1; }
Direction direction() const { return fDirection; }
GrTextureDomain::Mode mode() const { return fMode; }
const char* name() const override { return "GaussianConvolution"; }
#ifdef SK_DEBUG
SkString dumpInfo() const override {
SkString str;
str.appendf("dir: %s radius: %d", Direction::kX == fDirection ? "X" : "Y", fRadius);
str.appendf("dir: %s radius: %d bounds: [%d %d]",
Direction::kX == fDirection ? "X" : "Y",
fRadius,
fBounds[0], fBounds[1]);
return str;
}
#endif
@ -65,10 +71,10 @@ public:
static const int kMaxKernelWidth = 2 * kMaxKernelRadius + 1;
private:
GrGaussianConvolutionFragmentProcessor(std::unique_ptr<GrFragmentProcessor>,
Direction,
int halfWidth,
float gaussianSigma);
/// Convolve with a Gaussian kernel
GrGaussianConvolutionFragmentProcessor(GrSurfaceProxyView, SkAlphaType alphaType, Direction,
int halfWidth, float gaussianSigma,
GrTextureDomain::Mode mode, int bounds[2]);
explicit GrGaussianConvolutionFragmentProcessor(const GrGaussianConvolutionFragmentProcessor&);
@ -78,16 +84,19 @@ private:
bool onIsEqual(const GrFragmentProcessor&) const override;
const TextureSampler& onTextureSampler(int) const override { return fTextureSampler; }
GR_DECLARE_FRAGMENT_PROCESSOR_TEST
// We really just want the unaltered local coords, but the only way to get that right now is
// an identity coord transform.
GrCoordTransform fCoordTransform = {};
GrCoordTransform fCoordTransform;
TextureSampler fTextureSampler;
// TODO: Inline the kernel constants into the generated shader code. This may involve pulling
// some of the logic from SkGpuBlurUtils into this class related to radius/sigma calculations.
float fKernel[kMaxKernelWidth];
int fBounds[2];
int fRadius;
Direction fDirection;
GrTextureDomain::Mode fMode;
typedef GrFragmentProcessor INHERITED;
};