| /* |
| * Copyright 2012 The Android Open Source Project |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "include/effects/SkMorphologyImageFilter.h" |
| |
| #include "include/core/SkBitmap.h" |
| #include "include/core/SkRect.h" |
| #include "include/private/SkColorData.h" |
| #include "src/core/SkImageFilter_Base.h" |
| #include "src/core/SkReadBuffer.h" |
| #include "src/core/SkSpecialImage.h" |
| #include "src/core/SkWriteBuffer.h" |
| |
| #if SK_SUPPORT_GPU |
| #include "include/gpu/GrContext.h" |
| #include "include/gpu/GrTexture.h" |
| #include "include/private/GrRecordingContext.h" |
| #include "src/gpu/GrContextPriv.h" |
| #include "src/gpu/GrCoordTransform.h" |
| #include "src/gpu/GrFixedClip.h" |
| #include "src/gpu/GrRecordingContextPriv.h" |
| #include "src/gpu/GrRenderTargetContext.h" |
| #include "src/gpu/GrTextureProxy.h" |
| #include "src/gpu/SkGr.h" |
| #include "src/gpu/glsl/GrGLSLFragmentProcessor.h" |
| #include "src/gpu/glsl/GrGLSLFragmentShaderBuilder.h" |
| #include "src/gpu/glsl/GrGLSLProgramDataManager.h" |
| #include "src/gpu/glsl/GrGLSLUniformHandler.h" |
| #endif |
| |
| namespace { |
| |
| enum class MorphType { |
| kErode, |
| kDilate, |
| kLastType = kDilate |
| }; |
| |
| enum class MorphDirection { kX, kY }; |
| |
| class SkMorphologyImageFilterImpl final : public SkImageFilter_Base { |
| public: |
| SkMorphologyImageFilterImpl(MorphType type, int radiusX, int radiusY, |
| sk_sp<SkImageFilter> input, const CropRect* cropRect) |
| : INHERITED(&input, 1, cropRect) |
| , fType(type) |
| , fRadius(SkISize::Make(radiusX, radiusY)) {} |
| |
| SkRect computeFastBounds(const SkRect& src) const override; |
| SkIRect onFilterNodeBounds(const SkIRect& src, const SkMatrix& ctm, |
| MapDirection, const SkIRect* inputRect) const override; |
| |
| /** |
| * All morphology procs have the same signature: src is the source buffer, dst the |
| * destination buffer, radius is the morphology radius, width and height are the bounds |
| * of the destination buffer (in pixels), and srcStride and dstStride are the |
| * number of pixels per row in each buffer. All buffers are 8888. |
| */ |
| |
| typedef void (*Proc)(const SkPMColor* src, SkPMColor* dst, int radius, |
| int width, int height, int srcStride, int dstStride); |
| |
| protected: |
| sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* source, |
| const Context&, |
| SkIPoint* offset) const override; |
| void flatten(SkWriteBuffer&) const override; |
| |
| SkISize radius() const { return fRadius; } |
| |
| private: |
| friend void SkDilateImageFilter::RegisterFlattenables(); |
| |
| SK_FLATTENABLE_HOOKS(SkMorphologyImageFilterImpl) |
| // Historically the morphology op was implicitly encoded in the factory type used to decode |
| // the image filter, so provide backwards compatible functions for old SKPs. |
| static sk_sp<SkFlattenable> CreateProcWithType(SkReadBuffer&, const MorphType*); |
| static sk_sp<SkFlattenable> DilateCreateProc(SkReadBuffer& buffer) { |
| static const MorphType kType = MorphType::kDilate; |
| return CreateProcWithType(buffer, &kType); |
| } |
| static sk_sp<SkFlattenable> ErodeCreateProc(SkReadBuffer& buffer) { |
| static const MorphType kType = MorphType::kErode; |
| return CreateProcWithType(buffer, &kType); |
| } |
| |
| MorphType fType; |
| SkISize fRadius; |
| |
| typedef SkImageFilter_Base INHERITED; |
| }; |
| |
| } // end namespace |
| |
| sk_sp<SkImageFilter> SkDilateImageFilter::Make(int radiusX, int radiusY, |
| sk_sp<SkImageFilter> input, |
| const SkImageFilter::CropRect* cropRect) { |
| if (radiusX < 0 || radiusY < 0) { |
| return nullptr; |
| } |
| return sk_sp<SkImageFilter>(new SkMorphologyImageFilterImpl( |
| MorphType::kDilate, radiusX, radiusY, std::move(input), cropRect)); |
| } |
| |
| sk_sp<SkImageFilter> SkErodeImageFilter::Make(int radiusX, int radiusY, |
| sk_sp<SkImageFilter> input, |
| const SkImageFilter::CropRect* cropRect) { |
| if (radiusX < 0 || radiusY < 0) { |
| return nullptr; |
| } |
| return sk_sp<SkImageFilter>(new SkMorphologyImageFilterImpl( |
| MorphType::kErode, radiusX, radiusY, std::move(input), cropRect)); |
| } |
| |
| void SkDilateImageFilter::RegisterFlattenables() { |
| SK_REGISTER_FLATTENABLE(SkMorphologyImageFilterImpl); |
| // TODO (michaelludwig) - Remove after grace period for SKPs to stop using old names |
| SkFlattenable::Register("SkDilateImageFilter", SkMorphologyImageFilterImpl::DilateCreateProc); |
| SkFlattenable::Register( |
| "SkDilateImageFilterImpl", SkMorphologyImageFilterImpl::DilateCreateProc); |
| SkFlattenable::Register("SkErodeImageFilter", SkMorphologyImageFilterImpl::ErodeCreateProc); |
| SkFlattenable::Register("SkErodeImageFilterImpl", SkMorphologyImageFilterImpl::ErodeCreateProc); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| // 'type' acts as a signal that old-style deserialization is required. It is temporary. |
| sk_sp<SkFlattenable> SkMorphologyImageFilterImpl::CreateProcWithType(SkReadBuffer& buffer, |
| const MorphType* type) { |
| SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); |
| const int width = buffer.readInt(); |
| const int height = buffer.readInt(); |
| |
| MorphType filterType; |
| if (type) { |
| // The old create procs that have an associated op should only be used on old SKPs |
| SkASSERT(buffer.isVersionLT(SkPicturePriv::kUnifyErodeDilateImpls_Version)); |
| filterType = *type; |
| } else { |
| filterType = buffer.read32LE(MorphType::kLastType); |
| } |
| |
| if (filterType == MorphType::kDilate) { |
| return SkDilateImageFilter::Make(width, height, common.getInput(0), &common.cropRect()); |
| } else if (filterType == MorphType::kErode) { |
| return SkErodeImageFilter::Make(width, height, common.getInput(0), &common.cropRect()); |
| } else { |
| return nullptr; |
| } |
| } |
| |
| sk_sp<SkFlattenable> SkMorphologyImageFilterImpl::CreateProc(SkReadBuffer& buffer) { |
| // Pass null to have the create proc read the op from the buffer |
| return CreateProcWithType(buffer, nullptr); |
| } |
| |
| void SkMorphologyImageFilterImpl::flatten(SkWriteBuffer& buffer) const { |
| this->INHERITED::flatten(buffer); |
| buffer.writeInt(fRadius.fWidth); |
| buffer.writeInt(fRadius.fHeight); |
| buffer.writeInt(static_cast<int>(fType)); |
| } |
| |
| static void call_proc_X(SkMorphologyImageFilterImpl::Proc procX, |
| const SkBitmap& src, SkBitmap* dst, |
| int radiusX, const SkIRect& bounds) { |
| procX(src.getAddr32(bounds.left(), bounds.top()), dst->getAddr32(0, 0), |
| radiusX, bounds.width(), bounds.height(), |
| src.rowBytesAsPixels(), dst->rowBytesAsPixels()); |
| } |
| |
| static void call_proc_Y(SkMorphologyImageFilterImpl::Proc procY, |
| const SkPMColor* src, int srcRowBytesAsPixels, SkBitmap* dst, |
| int radiusY, const SkIRect& bounds) { |
| procY(src, dst->getAddr32(0, 0), |
| radiusY, bounds.height(), bounds.width(), |
| srcRowBytesAsPixels, dst->rowBytesAsPixels()); |
| } |
| |
| SkRect SkMorphologyImageFilterImpl::computeFastBounds(const SkRect& src) const { |
| SkRect bounds = this->getInput(0) ? this->getInput(0)->computeFastBounds(src) : src; |
| bounds.outset(SkIntToScalar(fRadius.width()), SkIntToScalar(fRadius.height())); |
| return bounds; |
| } |
| |
| SkIRect SkMorphologyImageFilterImpl::onFilterNodeBounds( |
| const SkIRect& src, const SkMatrix& ctm, MapDirection, const SkIRect* inputRect) const { |
| SkVector radius = SkVector::Make(SkIntToScalar(this->radius().width()), |
| SkIntToScalar(this->radius().height())); |
| ctm.mapVectors(&radius, 1); |
| return src.makeOutset(SkScalarCeilToInt(radius.x()), SkScalarCeilToInt(radius.y())); |
| } |
| |
| #if SK_SUPPORT_GPU |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| /** |
| * Morphology effects. Depending upon the type of morphology, either the |
| * component-wise min (Erode_Type) or max (Dilate_Type) of all pixels in the |
| * kernel is selected as the new color. The new color is modulated by the input |
| * color. |
| */ |
| class GrMorphologyEffect : public GrFragmentProcessor { |
| public: |
| static std::unique_ptr<GrFragmentProcessor> Make(sk_sp<GrTextureProxy> proxy, |
| MorphDirection dir, |
| int radius, MorphType type) { |
| return std::unique_ptr<GrFragmentProcessor>( |
| new GrMorphologyEffect(std::move(proxy), dir, radius, type, nullptr)); |
| } |
| |
| static std::unique_ptr<GrFragmentProcessor> Make(sk_sp<GrTextureProxy> proxy, |
| MorphDirection dir, |
| int radius, MorphType type, |
| const float bounds[2]) { |
| return std::unique_ptr<GrFragmentProcessor>( |
| new GrMorphologyEffect(std::move(proxy), dir, radius, type, bounds)); |
| } |
| |
| MorphType type() const { return fType; } |
| bool useRange() const { return fUseRange; } |
| const float* range() const { return fRange; } |
| MorphDirection direction() const { return fDirection; } |
| int radius() const { return fRadius; } |
| int width() const { return 2 * fRadius + 1; } |
| |
| const char* name() const override { return "Morphology"; } |
| |
| std::unique_ptr<GrFragmentProcessor> clone() const override { |
| return std::unique_ptr<GrFragmentProcessor>(new GrMorphologyEffect(*this)); |
| } |
| |
| private: |
| GrCoordTransform fCoordTransform; |
| TextureSampler fTextureSampler; |
| MorphDirection fDirection; |
| int fRadius; |
| MorphType fType; |
| bool fUseRange; |
| float fRange[2]; |
| |
| GrGLSLFragmentProcessor* onCreateGLSLInstance() const override; |
| |
| void onGetGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override; |
| |
| bool onIsEqual(const GrFragmentProcessor&) const override; |
| |
| const TextureSampler& onTextureSampler(int i) const override { return fTextureSampler; } |
| |
| GrMorphologyEffect(sk_sp<GrTextureProxy>, MorphDirection, int radius, MorphType, |
| const float range[2]); |
| explicit GrMorphologyEffect(const GrMorphologyEffect&); |
| |
| GR_DECLARE_FRAGMENT_PROCESSOR_TEST |
| |
| typedef GrFragmentProcessor INHERITED; |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| class GrGLMorphologyEffect : public GrGLSLFragmentProcessor { |
| public: |
| void emitCode(EmitArgs&) override; |
| |
| static inline void GenKey(const GrProcessor&, const GrShaderCaps&, GrProcessorKeyBuilder*); |
| |
| protected: |
| void onSetData(const GrGLSLProgramDataManager&, const GrFragmentProcessor&) override; |
| |
| private: |
| GrGLSLProgramDataManager::UniformHandle fPixelSizeUni; |
| GrGLSLProgramDataManager::UniformHandle fRangeUni; |
| |
| typedef GrGLSLFragmentProcessor INHERITED; |
| }; |
| |
| void GrGLMorphologyEffect::emitCode(EmitArgs& args) { |
| const GrMorphologyEffect& me = args.fFp.cast<GrMorphologyEffect>(); |
| |
| GrGLSLUniformHandler* uniformHandler = args.fUniformHandler; |
| fPixelSizeUni = uniformHandler->addUniform(kFragment_GrShaderFlag, kHalf_GrSLType, "PixelSize"); |
| const char* pixelSizeInc = uniformHandler->getUniformCStr(fPixelSizeUni); |
| fRangeUni = uniformHandler->addUniform(kFragment_GrShaderFlag, kFloat2_GrSLType, "Range"); |
| const char* range = uniformHandler->getUniformCStr(fRangeUni); |
| |
| GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder; |
| SkString coords2D = fragBuilder->ensureCoords2D(args.fTransformedCoords[0]); |
| const char* func; |
| switch (me.type()) { |
| case MorphType::kErode: |
| fragBuilder->codeAppendf("\t\t%s = half4(1, 1, 1, 1);\n", args.fOutputColor); |
| func = "min"; |
| break; |
| case MorphType::kDilate: |
| fragBuilder->codeAppendf("\t\t%s = half4(0, 0, 0, 0);\n", args.fOutputColor); |
| func = "max"; |
| break; |
| default: |
| SK_ABORT("Unexpected type"); |
| func = ""; // suppress warning |
| break; |
| } |
| |
| const char* dir; |
| switch (me.direction()) { |
| case MorphDirection::kX: |
| dir = "x"; |
| break; |
| case MorphDirection::kY: |
| dir = "y"; |
| break; |
| default: |
| SK_ABORT("Unknown filter direction."); |
| dir = ""; // suppress warning |
| } |
| |
| int width = me.width(); |
| |
| // float2 coord = coord2D; |
| fragBuilder->codeAppendf("\t\tfloat2 coord = %s;\n", coords2D.c_str()); |
| // coord.x -= radius * pixelSize; |
| fragBuilder->codeAppendf("\t\tcoord.%s -= %d.0 * %s; \n", dir, me.radius(), pixelSizeInc); |
| if (me.useRange()) { |
| // highBound = min(highBound, coord.x + (width-1) * pixelSize); |
| fragBuilder->codeAppendf("\t\tfloat highBound = min(%s.y, coord.%s + %f * %s);", |
| range, dir, float(width - 1), pixelSizeInc); |
| // coord.x = max(lowBound, coord.x); |
| fragBuilder->codeAppendf("\t\tcoord.%s = max(%s.x, coord.%s);", dir, range, dir); |
| } |
| fragBuilder->codeAppendf("\t\tfor (int i = 0; i < %d; i++) {\n", width); |
| fragBuilder->codeAppendf("\t\t\t%s = %s(%s, ", args.fOutputColor, func, args.fOutputColor); |
| fragBuilder->appendTextureLookup(args.fTexSamplers[0], "coord"); |
| fragBuilder->codeAppend(");\n"); |
| // coord.x += pixelSize; |
| fragBuilder->codeAppendf("\t\t\tcoord.%s += %s;\n", dir, pixelSizeInc); |
| if (me.useRange()) { |
| // coord.x = min(highBound, coord.x); |
| fragBuilder->codeAppendf("\t\t\tcoord.%s = min(highBound, coord.%s);", dir, dir); |
| } |
| fragBuilder->codeAppend("\t\t}\n"); |
| fragBuilder->codeAppendf("%s *= %s;\n", args.fOutputColor, args.fInputColor); |
| } |
| |
| void GrGLMorphologyEffect::GenKey(const GrProcessor& proc, |
| const GrShaderCaps&, GrProcessorKeyBuilder* b) { |
| const GrMorphologyEffect& m = proc.cast<GrMorphologyEffect>(); |
| uint32_t key = static_cast<uint32_t>(m.radius()); |
| key |= (static_cast<uint32_t>(m.type()) << 8); |
| key |= (static_cast<uint32_t>(m.direction()) << 9); |
| if (m.useRange()) { |
| key |= 1 << 10; |
| } |
| b->add32(key); |
| } |
| |
| void GrGLMorphologyEffect::onSetData(const GrGLSLProgramDataManager& pdman, |
| const GrFragmentProcessor& proc) { |
| const GrMorphologyEffect& m = proc.cast<GrMorphologyEffect>(); |
| GrSurfaceProxy* proxy = m.textureSampler(0).proxy(); |
| GrTexture& texture = *proxy->peekTexture(); |
| |
| float pixelSize = 0.0f; |
| switch (m.direction()) { |
| case MorphDirection::kX: |
| pixelSize = 1.0f / texture.width(); |
| break; |
| case MorphDirection::kY: |
| pixelSize = 1.0f / texture.height(); |
| break; |
| default: |
| SK_ABORT("Unknown filter direction."); |
| } |
| pdman.set1f(fPixelSizeUni, pixelSize); |
| |
| if (m.useRange()) { |
| const float* range = m.range(); |
| if (MorphDirection::kY == m.direction() && |
| proxy->origin() == kBottomLeft_GrSurfaceOrigin) { |
| pdman.set2f(fRangeUni, 1.0f - (range[1]*pixelSize), 1.0f - (range[0]*pixelSize)); |
| } else { |
| pdman.set2f(fRangeUni, range[0] * pixelSize, range[1] * pixelSize); |
| } |
| } |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| GrMorphologyEffect::GrMorphologyEffect(sk_sp<GrTextureProxy> proxy, |
| MorphDirection direction, |
| int radius, |
| MorphType type, |
| const float range[2]) |
| : INHERITED(kGrMorphologyEffect_ClassID, |
| ModulateForClampedSamplerOptFlags(proxy->config())) |
| , fCoordTransform(proxy.get()) |
| , fTextureSampler(std::move(proxy)) |
| , fDirection(direction) |
| , fRadius(radius) |
| , fType(type) |
| , fUseRange(SkToBool(range)) { |
| // Make sure the sampler's ctor uses the clamp wrap mode |
| SkASSERT(fTextureSampler.samplerState().wrapModeX() == GrSamplerState::WrapMode::kClamp && |
| fTextureSampler.samplerState().wrapModeY() == GrSamplerState::WrapMode::kClamp); |
| this->addCoordTransform(&fCoordTransform); |
| this->setTextureSamplerCnt(1); |
| if (fUseRange) { |
| fRange[0] = range[0]; |
| fRange[1] = range[1]; |
| } |
| } |
| |
| GrMorphologyEffect::GrMorphologyEffect(const GrMorphologyEffect& that) |
| : INHERITED(kGrMorphologyEffect_ClassID, that.optimizationFlags()) |
| , fCoordTransform(that.fCoordTransform) |
| , fTextureSampler(that.fTextureSampler) |
| , fDirection(that.fDirection) |
| , fRadius(that.fRadius) |
| , fType(that.fType) |
| , fUseRange(that.fUseRange) { |
| this->addCoordTransform(&fCoordTransform); |
| this->setTextureSamplerCnt(1); |
| if (that.fUseRange) { |
| fRange[0] = that.fRange[0]; |
| fRange[1] = that.fRange[1]; |
| } |
| } |
| |
| void GrMorphologyEffect::onGetGLSLProcessorKey(const GrShaderCaps& caps, |
| GrProcessorKeyBuilder* b) const { |
| GrGLMorphologyEffect::GenKey(*this, caps, b); |
| } |
| |
| GrGLSLFragmentProcessor* GrMorphologyEffect::onCreateGLSLInstance() const { |
| return new GrGLMorphologyEffect; |
| } |
| bool GrMorphologyEffect::onIsEqual(const GrFragmentProcessor& sBase) const { |
| const GrMorphologyEffect& s = sBase.cast<GrMorphologyEffect>(); |
| return (this->radius() == s.radius() && |
| this->direction() == s.direction() && |
| this->useRange() == s.useRange() && |
| this->type() == s.type()); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrMorphologyEffect); |
| |
| #if GR_TEST_UTILS |
| std::unique_ptr<GrFragmentProcessor> GrMorphologyEffect::TestCreate(GrProcessorTestData* d) { |
| int texIdx = d->fRandom->nextBool() ? GrProcessorUnitTest::kSkiaPMTextureIdx |
| : GrProcessorUnitTest::kAlphaTextureIdx; |
| sk_sp<GrTextureProxy> proxy = d->textureProxy(texIdx); |
| |
| MorphDirection dir = d->fRandom->nextBool() ? MorphDirection::kX : MorphDirection::kY; |
| static const int kMaxRadius = 10; |
| int radius = d->fRandom->nextRangeU(1, kMaxRadius); |
| MorphType type = d->fRandom->nextBool() ? MorphType::kErode : MorphType::kDilate; |
| |
| return GrMorphologyEffect::Make(std::move(proxy), dir, radius, type); |
| } |
| #endif |
| |
| static void apply_morphology_rect(GrRenderTargetContext* renderTargetContext, |
| const GrClip& clip, |
| sk_sp<GrTextureProxy> proxy, |
| const SkIRect& srcRect, |
| const SkIRect& dstRect, |
| int radius, |
| MorphType morphType, |
| const float bounds[2], |
| MorphDirection direction) { |
| GrPaint paint; |
| paint.addColorFragmentProcessor(GrMorphologyEffect::Make(std::move(proxy), |
| direction, radius, morphType, |
| bounds)); |
| paint.setPorterDuffXPFactory(SkBlendMode::kSrc); |
| renderTargetContext->fillRectToRect(clip, std::move(paint), GrAA::kNo, SkMatrix::I(), |
| SkRect::Make(dstRect), SkRect::Make(srcRect)); |
| } |
| |
| static void apply_morphology_rect_no_bounds(GrRenderTargetContext* renderTargetContext, |
| const GrClip& clip, |
| sk_sp<GrTextureProxy> proxy, |
| const SkIRect& srcRect, |
| const SkIRect& dstRect, |
| int radius, |
| MorphType morphType, |
| MorphDirection direction) { |
| GrPaint paint; |
| paint.addColorFragmentProcessor(GrMorphologyEffect::Make(std::move(proxy), |
| direction, radius, morphType)); |
| paint.setPorterDuffXPFactory(SkBlendMode::kSrc); |
| renderTargetContext->fillRectToRect(clip, std::move(paint), GrAA::kNo, SkMatrix::I(), |
| SkRect::Make(dstRect), SkRect::Make(srcRect)); |
| } |
| |
| static void apply_morphology_pass(GrRenderTargetContext* renderTargetContext, |
| const GrClip& clip, |
| sk_sp<GrTextureProxy> textureProxy, |
| const SkIRect& srcRect, |
| const SkIRect& dstRect, |
| int radius, |
| MorphType morphType, |
| MorphDirection direction) { |
| float bounds[2] = { 0.0f, 1.0f }; |
| SkIRect lowerSrcRect = srcRect, lowerDstRect = dstRect; |
| SkIRect middleSrcRect = srcRect, middleDstRect = dstRect; |
| SkIRect upperSrcRect = srcRect, upperDstRect = dstRect; |
| if (direction == MorphDirection::kX) { |
| bounds[0] = SkIntToScalar(srcRect.left()) + 0.5f; |
| bounds[1] = SkIntToScalar(srcRect.right()) - 0.5f; |
| lowerSrcRect.fRight = srcRect.left() + radius; |
| lowerDstRect.fRight = dstRect.left() + radius; |
| upperSrcRect.fLeft = srcRect.right() - radius; |
| upperDstRect.fLeft = dstRect.right() - radius; |
| middleSrcRect.inset(radius, 0); |
| middleDstRect.inset(radius, 0); |
| } else { |
| bounds[0] = SkIntToScalar(srcRect.top()) + 0.5f; |
| bounds[1] = SkIntToScalar(srcRect.bottom()) - 0.5f; |
| lowerSrcRect.fBottom = srcRect.top() + radius; |
| lowerDstRect.fBottom = dstRect.top() + radius; |
| upperSrcRect.fTop = srcRect.bottom() - radius; |
| upperDstRect.fTop = dstRect.bottom() - radius; |
| middleSrcRect.inset(0, radius); |
| middleDstRect.inset(0, radius); |
| } |
| if (middleSrcRect.width() <= 0) { |
| // radius covers srcRect; use bounds over entire draw |
| apply_morphology_rect(renderTargetContext, clip, std::move(textureProxy), |
| srcRect, dstRect, radius, morphType, bounds, direction); |
| } else { |
| // Draw upper and lower margins with bounds; middle without. |
| apply_morphology_rect(renderTargetContext, clip, textureProxy, |
| lowerSrcRect, lowerDstRect, radius, morphType, bounds, direction); |
| apply_morphology_rect(renderTargetContext, clip, textureProxy, |
| upperSrcRect, upperDstRect, radius, morphType, bounds, direction); |
| apply_morphology_rect_no_bounds(renderTargetContext, clip, std::move(textureProxy), |
| middleSrcRect, middleDstRect, radius, morphType, direction); |
| } |
| } |
| |
| static sk_sp<SkSpecialImage> apply_morphology( |
| GrRecordingContext* context, SkSpecialImage* input, const SkIRect& rect, |
| MorphType morphType, SkISize radius, |
| const SkImageFilter_Base::OutputProperties& outputProperties) { |
| sk_sp<GrTextureProxy> srcTexture(input->asTextureProxyRef(context)); |
| SkASSERT(srcTexture); |
| sk_sp<SkColorSpace> colorSpace = sk_ref_sp(outputProperties.colorSpace()); |
| GrColorType colorType = SkColorTypeToGrColorType(outputProperties.colorType()); |
| |
| // setup new clip |
| const GrFixedClip clip(SkIRect::MakeWH(srcTexture->width(), srcTexture->height())); |
| |
| const SkIRect dstRect = SkIRect::MakeWH(rect.width(), rect.height()); |
| SkIRect srcRect = rect; |
| |
| SkASSERT(radius.width() > 0 || radius.height() > 0); |
| |
| if (radius.fWidth > 0) { |
| sk_sp<GrRenderTargetContext> dstRTContext(context->priv().makeDeferredRenderTargetContext( |
| SkBackingFit::kApprox, |
| rect.width(), |
| rect.height(), |
| colorType, |
| colorSpace, |
| 1, |
| GrMipMapped::kNo, |
| kBottomLeft_GrSurfaceOrigin, |
| nullptr, |
| SkBudgeted::kYes, |
| srcTexture->isProtected() ? GrProtected::kYes : GrProtected::kNo)); |
| if (!dstRTContext) { |
| return nullptr; |
| } |
| |
| apply_morphology_pass(dstRTContext.get(), clip, std::move(srcTexture), srcRect, dstRect, |
| radius.fWidth, morphType, MorphDirection::kX); |
| SkIRect clearRect = SkIRect::MakeXYWH(dstRect.fLeft, dstRect.fBottom, |
| dstRect.width(), radius.fHeight); |
| SkPMColor4f clearColor = MorphType::kErode == morphType |
| ? SK_PMColor4fWHITE : SK_PMColor4fTRANSPARENT; |
| dstRTContext->clear(&clearRect, clearColor, GrRenderTargetContext::CanClearFullscreen::kNo); |
| |
| srcTexture = dstRTContext->asTextureProxyRef(); |
| srcRect = dstRect; |
| } |
| if (radius.fHeight > 0) { |
| sk_sp<GrRenderTargetContext> dstRTContext(context->priv().makeDeferredRenderTargetContext( |
| SkBackingFit::kApprox, |
| rect.width(), |
| rect.height(), |
| colorType, |
| colorSpace, |
| 1, |
| GrMipMapped::kNo, |
| kBottomLeft_GrSurfaceOrigin, |
| nullptr, |
| SkBudgeted::kYes, |
| srcTexture->isProtected() ? GrProtected::kYes : GrProtected::kNo)); |
| if (!dstRTContext) { |
| return nullptr; |
| } |
| |
| apply_morphology_pass(dstRTContext.get(), clip, std::move(srcTexture), srcRect, dstRect, |
| radius.fHeight, morphType, MorphDirection::kY); |
| |
| srcTexture = dstRTContext->asTextureProxyRef(); |
| } |
| |
| return SkSpecialImage::MakeDeferredFromGpu(context, |
| SkIRect::MakeWH(rect.width(), rect.height()), |
| kNeedNewImageUniqueID_SpecialImage, |
| std::move(srcTexture), std::move(colorSpace), |
| &input->props()); |
| } |
| #endif |
| |
| namespace { |
| |
| #if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE2 |
| template<MorphType type, MorphDirection direction> |
| static void morph(const SkPMColor* src, SkPMColor* dst, |
| int radius, int width, int height, int srcStride, int dstStride) { |
| const int srcStrideX = direction == MorphDirection::kX ? 1 : srcStride; |
| const int dstStrideX = direction == MorphDirection::kX ? 1 : dstStride; |
| const int srcStrideY = direction == MorphDirection::kX ? srcStride : 1; |
| const int dstStrideY = direction == MorphDirection::kX ? dstStride : 1; |
| radius = SkMin32(radius, width - 1); |
| const SkPMColor* upperSrc = src + radius * srcStrideX; |
| for (int x = 0; x < width; ++x) { |
| const SkPMColor* lp = src; |
| const SkPMColor* up = upperSrc; |
| SkPMColor* dptr = dst; |
| for (int y = 0; y < height; ++y) { |
| __m128i extreme = (type == MorphType::kDilate) ? _mm_setzero_si128() |
| : _mm_set1_epi32(0xFFFFFFFF); |
| for (const SkPMColor* p = lp; p <= up; p += srcStrideX) { |
| __m128i src_pixel = _mm_cvtsi32_si128(*p); |
| extreme = (type == MorphType::kDilate) ? _mm_max_epu8(src_pixel, extreme) |
| : _mm_min_epu8(src_pixel, extreme); |
| } |
| *dptr = _mm_cvtsi128_si32(extreme); |
| dptr += dstStrideY; |
| lp += srcStrideY; |
| up += srcStrideY; |
| } |
| if (x >= radius) { src += srcStrideX; } |
| if (x + radius < width - 1) { upperSrc += srcStrideX; } |
| dst += dstStrideX; |
| } |
| } |
| |
| #elif defined(SK_ARM_HAS_NEON) |
| template<MorphType type, MorphDirection direction> |
| static void morph(const SkPMColor* src, SkPMColor* dst, |
| int radius, int width, int height, int srcStride, int dstStride) { |
| const int srcStrideX = direction == MorphDirection::kX ? 1 : srcStride; |
| const int dstStrideX = direction == MorphDirection::kX ? 1 : dstStride; |
| const int srcStrideY = direction == MorphDirection::kX ? srcStride : 1; |
| const int dstStrideY = direction == MorphDirection::kX ? dstStride : 1; |
| radius = SkMin32(radius, width - 1); |
| const SkPMColor* upperSrc = src + radius * srcStrideX; |
| for (int x = 0; x < width; ++x) { |
| const SkPMColor* lp = src; |
| const SkPMColor* up = upperSrc; |
| SkPMColor* dptr = dst; |
| for (int y = 0; y < height; ++y) { |
| uint8x8_t extreme = vdup_n_u8(type == MorphType::kDilate ? 0 : 255); |
| for (const SkPMColor* p = lp; p <= up; p += srcStrideX) { |
| uint8x8_t src_pixel = vreinterpret_u8_u32(vdup_n_u32(*p)); |
| extreme = (type == MorphType::kDilate) ? vmax_u8(src_pixel, extreme) |
| : vmin_u8(src_pixel, extreme); |
| } |
| *dptr = vget_lane_u32(vreinterpret_u32_u8(extreme), 0); |
| dptr += dstStrideY; |
| lp += srcStrideY; |
| up += srcStrideY; |
| } |
| if (x >= radius) src += srcStrideX; |
| if (x + radius < width - 1) upperSrc += srcStrideX; |
| dst += dstStrideX; |
| } |
| } |
| |
| #else |
| template<MorphType type, MorphDirection direction> |
| static void morph(const SkPMColor* src, SkPMColor* dst, |
| int radius, int width, int height, int srcStride, int dstStride) { |
| const int srcStrideX = direction == MorphDirection::kX ? 1 : srcStride; |
| const int dstStrideX = direction == MorphDirection::kX ? 1 : dstStride; |
| const int srcStrideY = direction == MorphDirection::kX ? srcStride : 1; |
| const int dstStrideY = direction == MorphDirection::kX ? dstStride : 1; |
| radius = SkMin32(radius, width - 1); |
| const SkPMColor* upperSrc = src + radius * srcStrideX; |
| for (int x = 0; x < width; ++x) { |
| const SkPMColor* lp = src; |
| const SkPMColor* up = upperSrc; |
| SkPMColor* dptr = dst; |
| for (int y = 0; y < height; ++y) { |
| // If we're maxing (dilate), start from 0; if minning (erode), start from 255. |
| const int start = (type == MorphType::kDilate) ? 0 : 255; |
| int B = start, G = start, R = start, A = start; |
| for (const SkPMColor* p = lp; p <= up; p += srcStrideX) { |
| int b = SkGetPackedB32(*p), |
| g = SkGetPackedG32(*p), |
| r = SkGetPackedR32(*p), |
| a = SkGetPackedA32(*p); |
| if (type == MorphType::kDilate) { |
| B = SkTMax(b, B); |
| G = SkTMax(g, G); |
| R = SkTMax(r, R); |
| A = SkTMax(a, A); |
| } else { |
| B = SkTMin(b, B); |
| G = SkTMin(g, G); |
| R = SkTMin(r, R); |
| A = SkTMin(a, A); |
| } |
| } |
| *dptr = SkPackARGB32(A, R, G, B); |
| dptr += dstStrideY; |
| lp += srcStrideY; |
| up += srcStrideY; |
| } |
| if (x >= radius) { src += srcStrideX; } |
| if (x + radius < width - 1) { upperSrc += srcStrideX; } |
| dst += dstStrideX; |
| } |
| } |
| #endif |
| } // namespace |
| |
| sk_sp<SkSpecialImage> SkMorphologyImageFilterImpl::onFilterImage(SkSpecialImage* source, |
| const Context& ctx, |
| SkIPoint* offset) const { |
| SkIPoint inputOffset = SkIPoint::Make(0, 0); |
| sk_sp<SkSpecialImage> input(this->filterInput(0, source, ctx, &inputOffset)); |
| if (!input) { |
| return nullptr; |
| } |
| |
| SkIRect bounds; |
| input = this->applyCropRectAndPad(this->mapContext(ctx), input.get(), &inputOffset, &bounds); |
| if (!input) { |
| return nullptr; |
| } |
| |
| SkVector radius = SkVector::Make(SkIntToScalar(this->radius().width()), |
| SkIntToScalar(this->radius().height())); |
| ctx.ctm().mapVectors(&radius, 1); |
| int width = SkScalarFloorToInt(radius.fX); |
| int height = SkScalarFloorToInt(radius.fY); |
| |
| if (width < 0 || height < 0) { |
| return nullptr; |
| } |
| |
| SkIRect srcBounds = bounds; |
| srcBounds.offset(-inputOffset); |
| |
| if (0 == width && 0 == height) { |
| offset->fX = bounds.left(); |
| offset->fY = bounds.top(); |
| return input->makeSubset(srcBounds); |
| } |
| |
| #if SK_SUPPORT_GPU |
| if (source->isTextureBacked()) { |
| auto context = source->getContext(); |
| |
| // Ensure the input is in the destination color space. Typically applyCropRect will have |
| // called pad_image to account for our dilation of bounds, so the result will already be |
| // moved to the destination color space. If a filter DAG avoids that, then we use this |
| // fall-back, which saves us from having to do the xform during the filter itself. |
| input = ImageToColorSpace(input.get(), ctx.outputProperties()); |
| |
| sk_sp<SkSpecialImage> result(apply_morphology(context, input.get(), srcBounds, fType, |
| SkISize::Make(width, height), |
| ctx.outputProperties())); |
| if (result) { |
| offset->fX = bounds.left(); |
| offset->fY = bounds.top(); |
| } |
| return result; |
| } |
| #endif |
| |
| SkBitmap inputBM; |
| |
| if (!input->getROPixels(&inputBM)) { |
| return nullptr; |
| } |
| |
| if (inputBM.colorType() != kN32_SkColorType) { |
| return nullptr; |
| } |
| |
| SkImageInfo info = SkImageInfo::Make(bounds.width(), bounds.height(), |
| inputBM.colorType(), inputBM.alphaType()); |
| |
| SkBitmap dst; |
| if (!dst.tryAllocPixels(info)) { |
| return nullptr; |
| } |
| |
| SkMorphologyImageFilterImpl::Proc procX, procY; |
| |
| if (MorphType::kDilate == fType) { |
| procX = &morph<MorphType::kDilate, MorphDirection::kX>; |
| procY = &morph<MorphType::kDilate, MorphDirection::kY>; |
| } else { |
| procX = &morph<MorphType::kErode, MorphDirection::kX>; |
| procY = &morph<MorphType::kErode, MorphDirection::kY>; |
| } |
| |
| if (width > 0 && height > 0) { |
| SkBitmap tmp; |
| if (!tmp.tryAllocPixels(info)) { |
| return nullptr; |
| } |
| |
| call_proc_X(procX, inputBM, &tmp, width, srcBounds); |
| SkIRect tmpBounds = SkIRect::MakeWH(srcBounds.width(), srcBounds.height()); |
| call_proc_Y(procY, |
| tmp.getAddr32(tmpBounds.left(), tmpBounds.top()), tmp.rowBytesAsPixels(), |
| &dst, height, tmpBounds); |
| } else if (width > 0) { |
| call_proc_X(procX, inputBM, &dst, width, srcBounds); |
| } else if (height > 0) { |
| call_proc_Y(procY, |
| inputBM.getAddr32(srcBounds.left(), srcBounds.top()), |
| inputBM.rowBytesAsPixels(), |
| &dst, height, srcBounds); |
| } |
| offset->fX = bounds.left(); |
| offset->fY = bounds.top(); |
| |
| return SkSpecialImage::MakeFromRaster(SkIRect::MakeWH(bounds.width(), bounds.height()), |
| dst, &source->props()); |
| } |
