/*
|
* 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 "SkMorphologyImageFilter.h"
|
|
#include "SkBitmap.h"
|
#include "SkColorData.h"
|
#include "SkColorSpaceXformer.h"
|
#include "SkImageFilterPriv.h"
|
#include "SkReadBuffer.h"
|
#include "SkRect.h"
|
#include "SkSpecialImage.h"
|
#include "SkWriteBuffer.h"
|
|
#if SK_SUPPORT_GPU
|
#include "GrContext.h"
|
#include "GrCoordTransform.h"
|
#include "GrFixedClip.h"
|
#include "GrRenderTargetContext.h"
|
#include "GrTexture.h"
|
#include "GrTextureProxy.h"
|
#include "SkGr.h"
|
#include "glsl/GrGLSLFragmentProcessor.h"
|
#include "glsl/GrGLSLFragmentShaderBuilder.h"
|
#include "glsl/GrGLSLProgramDataManager.h"
|
#include "glsl/GrGLSLUniformHandler.h"
|
#endif
|
|
sk_sp<SkImageFilter> SkDilateImageFilter::Make(int radiusX, int radiusY,
|
sk_sp<SkImageFilter> input,
|
const CropRect* cropRect) {
|
if (radiusX < 0 || radiusY < 0) {
|
return nullptr;
|
}
|
return sk_sp<SkImageFilter>(new SkDilateImageFilter(radiusX, radiusY,
|
std::move(input),
|
cropRect));
|
}
|
|
|
sk_sp<SkImageFilter> SkErodeImageFilter::Make(int radiusX, int radiusY,
|
sk_sp<SkImageFilter> input,
|
const CropRect* cropRect) {
|
if (radiusX < 0 || radiusY < 0) {
|
return nullptr;
|
}
|
return sk_sp<SkImageFilter>(new SkErodeImageFilter(radiusX, radiusY,
|
std::move(input),
|
cropRect));
|
}
|
|
SkMorphologyImageFilter::SkMorphologyImageFilter(int radiusX,
|
int radiusY,
|
sk_sp<SkImageFilter> input,
|
const CropRect* cropRect)
|
: INHERITED(&input, 1, cropRect)
|
, fRadius(SkISize::Make(radiusX, radiusY)) {
|
}
|
|
void SkMorphologyImageFilter::flatten(SkWriteBuffer& buffer) const {
|
this->INHERITED::flatten(buffer);
|
buffer.writeInt(fRadius.fWidth);
|
buffer.writeInt(fRadius.fHeight);
|
}
|
|
static void call_proc_X(SkMorphologyImageFilter::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(SkMorphologyImageFilter::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 SkMorphologyImageFilter::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 SkMorphologyImageFilter::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()));
|
}
|
|
sk_sp<SkFlattenable> SkErodeImageFilter::CreateProc(SkReadBuffer& buffer) {
|
SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1);
|
const int width = buffer.readInt();
|
const int height = buffer.readInt();
|
return Make(width, height, common.getInput(0), &common.cropRect());
|
}
|
|
sk_sp<SkFlattenable> SkDilateImageFilter::CreateProc(SkReadBuffer& buffer) {
|
SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1);
|
const int width = buffer.readInt();
|
const int height = buffer.readInt();
|
return Make(width, height, common.getInput(0), &common.cropRect());
|
}
|
|
#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:
|
enum class Direction { kX, kY };
|
enum class Type { kErode, kDilate };
|
|
static std::unique_ptr<GrFragmentProcessor> Make(sk_sp<GrTextureProxy> proxy, Direction dir,
|
int radius, Type 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, Direction dir,
|
int radius, Type type, const float bounds[2]) {
|
return std::unique_ptr<GrFragmentProcessor>(
|
new GrMorphologyEffect(std::move(proxy), dir, radius, type, bounds));
|
}
|
|
Type type() const { return fType; }
|
bool useRange() const { return fUseRange; }
|
const float* range() const { return fRange; }
|
Direction 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;
|
Direction fDirection;
|
int fRadius;
|
Type 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>, Direction, int radius, Type, 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 GrMorphologyEffect::Type::kErode:
|
fragBuilder->codeAppendf("\t\t%s = half4(1, 1, 1, 1);\n", args.fOutputColor);
|
func = "min";
|
break;
|
case GrMorphologyEffect::Type::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 GrMorphologyEffect::Direction::kX:
|
dir = "x";
|
break;
|
case GrMorphologyEffect::Direction::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 GrMorphologyEffect::Direction::kX:
|
pixelSize = 1.0f / texture.width();
|
break;
|
case GrMorphologyEffect::Direction::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 (GrMorphologyEffect::Direction::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,
|
Direction direction,
|
int radius,
|
Type 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);
|
|
Direction dir = d->fRandom->nextBool() ? Direction::kX : Direction::kY;
|
static const int kMaxRadius = 10;
|
int radius = d->fRandom->nextRangeU(1, kMaxRadius);
|
Type type = d->fRandom->nextBool() ? GrMorphologyEffect::Type::kErode
|
: GrMorphologyEffect::Type::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,
|
GrMorphologyEffect::Type morphType,
|
const float bounds[2],
|
GrMorphologyEffect::Direction 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,
|
GrMorphologyEffect::Type morphType,
|
GrMorphologyEffect::Direction 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,
|
GrMorphologyEffect::Type morphType,
|
GrMorphologyEffect::Direction 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 == GrMorphologyEffect::Direction::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(
|
GrContext* context,
|
SkSpecialImage* input,
|
const SkIRect& rect,
|
GrMorphologyEffect::Type morphType,
|
SkISize radius,
|
const SkImageFilter::OutputProperties& outputProperties) {
|
sk_sp<GrTextureProxy> srcTexture(input->asTextureProxyRef(context));
|
SkASSERT(srcTexture);
|
sk_sp<SkColorSpace> colorSpace = sk_ref_sp(outputProperties.colorSpace());
|
SkColorType colorType = outputProperties.colorType();
|
GrBackendFormat format =
|
context->contextPriv().caps()->getBackendFormatFromColorType(colorType);
|
GrPixelConfig config = SkColorType2GrPixelConfig(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->contextPriv().makeDeferredRenderTargetContext(
|
format, SkBackingFit::kApprox, rect.width(), rect.height(), config, colorSpace));
|
if (!dstRTContext) {
|
return nullptr;
|
}
|
|
apply_morphology_pass(dstRTContext.get(), clip, std::move(srcTexture), srcRect, dstRect,
|
radius.fWidth, morphType, GrMorphologyEffect::Direction::kX);
|
SkIRect clearRect = SkIRect::MakeXYWH(dstRect.fLeft, dstRect.fBottom,
|
dstRect.width(), radius.fHeight);
|
SkPMColor4f clearColor = GrMorphologyEffect::Type::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->contextPriv().makeDeferredRenderTargetContext(
|
format, SkBackingFit::kApprox, rect.width(), rect.height(), config, colorSpace));
|
if (!dstRTContext) {
|
return nullptr;
|
}
|
|
apply_morphology_pass(dstRTContext.get(), clip, std::move(srcTexture), srcRect, dstRect,
|
radius.fHeight, morphType, GrMorphologyEffect::Direction::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 {
|
enum MorphType { kDilate, kErode };
|
enum class MorphDirection { kX, kY };
|
|
#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 == 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 == 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 == 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 == 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 == 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 == 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> SkMorphologyImageFilter::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()) {
|
GrContext* 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());
|
|
auto type = (kDilate_Op == this->op()) ? GrMorphologyEffect::Type::kDilate
|
: GrMorphologyEffect::Type::kErode;
|
sk_sp<SkSpecialImage> result(apply_morphology(context, input.get(), srcBounds, type,
|
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;
|
}
|
|
SkMorphologyImageFilter::Proc procX, procY;
|
|
if (kDilate_Op == this->op()) {
|
procX = &morph<kDilate, MorphDirection::kX>;
|
procY = &morph<kDilate, MorphDirection::kY>;
|
} else {
|
procX = &morph<kErode, MorphDirection::kX>;
|
procY = &morph<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());
|
}
|
|
sk_sp<SkImageFilter> SkMorphologyImageFilter::onMakeColorSpace(SkColorSpaceXformer* xformer) const{
|
SkASSERT(1 == this->countInputs());
|
auto input = xformer->apply(this->getInput(0));
|
if (input.get() != this->getInput(0)) {
|
return (SkMorphologyImageFilter::kDilate_Op == this->op())
|
? SkDilateImageFilter::Make(fRadius.width(), fRadius.height(), std::move(input),
|
this->getCropRectIfSet())
|
: SkErodeImageFilter::Make(fRadius.width(), fRadius.height(), std::move(input),
|
this->getCropRectIfSet());
|
}
|
return this->refMe();
|
}
|
