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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/**************************************************************************************************
*** This file was autogenerated from GrRRectBlurEffect.fp; do not modify.
**************************************************************************************************/
#ifndef GrRRectBlurEffect_DEFINED
#define GrRRectBlurEffect_DEFINED
#include "SkTypes.h"
#include "GrClip.h"
#include "GrContext.h"
#include "GrContextPriv.h"
#include "GrPaint.h"
#include "GrProxyProvider.h"
#include "GrRenderTargetContext.h"
#include "GrStyle.h"
#include "SkBlurMaskFilter.h"
#include "SkBlurPriv.h"
#include "SkGpuBlurUtils.h"
#include "SkRRectPriv.h"
#include "GrFragmentProcessor.h"
#include "GrCoordTransform.h"
class GrRRectBlurEffect : public GrFragmentProcessor {
public:
static sk_sp<GrTextureProxy> find_or_create_rrect_blur_mask(GrContext* context,
const SkRRect& rrectToDraw,
const SkISize& size,
float xformedSigma) {
static const GrUniqueKey::Domain kDomain = GrUniqueKey::GenerateDomain();
GrUniqueKey key;
GrUniqueKey::Builder builder(&key, kDomain, 9, "RoundRect Blur Mask");
builder[0] = SkScalarCeilToInt(xformedSigma - 1 / 6.0f);
int index = 1;
for (auto c : {SkRRect::kUpperLeft_Corner, SkRRect::kUpperRight_Corner,
SkRRect::kLowerRight_Corner, SkRRect::kLowerLeft_Corner}) {
SkASSERT(SkScalarIsInt(rrectToDraw.radii(c).fX) &&
SkScalarIsInt(rrectToDraw.radii(c).fY));
builder[index++] = SkScalarCeilToInt(rrectToDraw.radii(c).fX);
builder[index++] = SkScalarCeilToInt(rrectToDraw.radii(c).fY);
}
builder.finish();
GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider();
sk_sp<GrTextureProxy> mask(
proxyProvider->findOrCreateProxyByUniqueKey(key, kBottomLeft_GrSurfaceOrigin));
if (!mask) {
// TODO: this could be approx but the texture coords will need to be updated
sk_sp<GrRenderTargetContext> rtc(
context->contextPriv().makeDeferredRenderTargetContextWithFallback(
SkBackingFit::kExact, size.fWidth, size.fHeight, kAlpha_8_GrPixelConfig,
nullptr));
if (!rtc) {
return nullptr;
}
GrPaint paint;
rtc->clear(nullptr, 0x0, GrRenderTargetContext::CanClearFullscreen::kYes);
rtc->drawRRect(GrNoClip(), std::move(paint), GrAA::kYes, SkMatrix::I(), rrectToDraw,
GrStyle::SimpleFill());
sk_sp<GrTextureProxy> srcProxy(rtc->asTextureProxyRef());
if (!srcProxy) {
return nullptr;
}
sk_sp<GrRenderTargetContext> rtc2(
SkGpuBlurUtils::GaussianBlur(context,
std::move(srcProxy),
nullptr,
SkIRect::MakeWH(size.fWidth, size.fHeight),
SkIRect::EmptyIRect(),
xformedSigma,
xformedSigma,
GrTextureDomain::kIgnore_Mode,
kPremul_SkAlphaType,
SkBackingFit::kExact));
if (!rtc2) {
return nullptr;
}
mask = rtc2->asTextureProxyRef();
if (!mask) {
return nullptr;
}
SkASSERT(mask->origin() == kBottomLeft_GrSurfaceOrigin);
proxyProvider->assignUniqueKeyToProxy(key, mask.get());
}
return mask;
}
float sigma() const { return fSigma; }
SkRect rect() const { return fRect; }
float cornerRadius() const { return fCornerRadius; }
static std::unique_ptr<GrFragmentProcessor> Make(GrContext* context, float sigma,
float xformedSigma, const SkRRect& srcRRect,
const SkRRect& devRRect);
GrRRectBlurEffect(const GrRRectBlurEffect& src);
std::unique_ptr<GrFragmentProcessor> clone() const override;
const char* name() const override { return "RRectBlurEffect"; }
private:
GrRRectBlurEffect(float sigma, SkRect rect, float cornerRadius,
sk_sp<GrTextureProxy> ninePatchSampler)
: INHERITED(kGrRRectBlurEffect_ClassID,
(OptimizationFlags)kCompatibleWithCoverageAsAlpha_OptimizationFlag)
, fSigma(sigma)
, fRect(rect)
, fCornerRadius(cornerRadius)
, fNinePatchSampler(std::move(ninePatchSampler)) {
this->addTextureSampler(&fNinePatchSampler);
}
GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
void onGetGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override;
bool onIsEqual(const GrFragmentProcessor&) const override;
GR_DECLARE_FRAGMENT_PROCESSOR_TEST
float fSigma;
SkRect fRect;
float fCornerRadius;
TextureSampler fNinePatchSampler;
typedef GrFragmentProcessor INHERITED;
};
#endif
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