| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkArithmeticImageFilter.h" |
| #include "SkBitmap.h" |
| #include "SkBlurImageFilter.h" |
| #include "SkCanvas.h" |
| #include "SkColorFilterImageFilter.h" |
| #include "SkColorMatrixFilter.h" |
| #include "SkColorSpaceXformer.h" |
| #include "SkComposeImageFilter.h" |
| #include "SkDisplacementMapEffect.h" |
| #include "SkDropShadowImageFilter.h" |
| #include "SkFlattenableSerialization.h" |
| #include "SkGradientShader.h" |
| #include "SkImage.h" |
| #include "SkImageSource.h" |
| #include "SkLightingImageFilter.h" |
| #include "SkMatrixConvolutionImageFilter.h" |
| #include "SkMergeImageFilter.h" |
| #include "SkMorphologyImageFilter.h" |
| #include "SkOffsetImageFilter.h" |
| #include "SkPaintImageFilter.h" |
| #include "SkPerlinNoiseShader.h" |
| #include "SkPicture.h" |
| #include "SkPictureImageFilter.h" |
| #include "SkPictureRecorder.h" |
| #include "SkPoint3.h" |
| #include "SkReadBuffer.h" |
| #include "SkRect.h" |
| #include "SkSpecialImage.h" |
| #include "SkSpecialSurface.h" |
| #include "SkSurface.h" |
| #include "SkTableColorFilter.h" |
| #include "SkTileImageFilter.h" |
| #include "SkXfermodeImageFilter.h" |
| #include "Resources.h" |
| #include "Test.h" |
| #include "sk_tool_utils.h" |
| |
| #if SK_SUPPORT_GPU |
| #include "GrContext.h" |
| #endif |
| |
| static const int kBitmapSize = 4; |
| |
| namespace { |
| |
| class MatrixTestImageFilter : public SkImageFilter { |
| public: |
| static sk_sp<SkImageFilter> Make(skiatest::Reporter* reporter, |
| const SkMatrix& expectedMatrix) { |
| return sk_sp<SkImageFilter>(new MatrixTestImageFilter(reporter, expectedMatrix)); |
| } |
| |
| SK_TO_STRING_OVERRIDE() |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(MatrixTestImageFilter) |
| |
| protected: |
| sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* source, const Context& ctx, |
| SkIPoint* offset) const override { |
| REPORTER_ASSERT(fReporter, ctx.ctm() == fExpectedMatrix); |
| offset->fX = offset->fY = 0; |
| return sk_ref_sp<SkSpecialImage>(source); |
| } |
| sk_sp<SkImageFilter> onMakeColorSpace(SkColorSpaceXformer*) const override { |
| return sk_ref_sp(const_cast<MatrixTestImageFilter*>(this)); |
| } |
| |
| void flatten(SkWriteBuffer& buffer) const override { |
| SkDEBUGFAIL("Should never get here"); |
| } |
| |
| private: |
| MatrixTestImageFilter(skiatest::Reporter* reporter, const SkMatrix& expectedMatrix) |
| : INHERITED(nullptr, 0, nullptr) |
| , fReporter(reporter) |
| , fExpectedMatrix(expectedMatrix) { |
| } |
| |
| skiatest::Reporter* fReporter; |
| SkMatrix fExpectedMatrix; |
| |
| typedef SkImageFilter INHERITED; |
| }; |
| |
| class FailImageFilter : public SkImageFilter { |
| public: |
| FailImageFilter() : SkImageFilter(nullptr, 0, nullptr) { } |
| |
| sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* source, |
| const Context& ctx, |
| SkIPoint* offset) const override { |
| return nullptr; |
| } |
| sk_sp<SkImageFilter> onMakeColorSpace(SkColorSpaceXformer*) const override { |
| return nullptr; |
| } |
| |
| SK_TO_STRING_OVERRIDE() |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(FailImageFilter) |
| |
| private: |
| typedef SkImageFilter INHERITED; |
| }; |
| |
| sk_sp<SkFlattenable> FailImageFilter::CreateProc(SkReadBuffer& buffer) { |
| SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 0); |
| return sk_sp<SkFlattenable>(new FailImageFilter()); |
| } |
| |
| #ifndef SK_IGNORE_TO_STRING |
| void FailImageFilter::toString(SkString* str) const { |
| str->appendf("FailImageFilter: ("); |
| str->append(")"); |
| } |
| #endif |
| |
| void draw_gradient_circle(SkCanvas* canvas, int width, int height) { |
| SkScalar x = SkIntToScalar(width / 2); |
| SkScalar y = SkIntToScalar(height / 2); |
| SkScalar radius = SkMinScalar(x, y) * 0.8f; |
| canvas->clear(0x00000000); |
| SkColor colors[2]; |
| colors[0] = SK_ColorWHITE; |
| colors[1] = SK_ColorBLACK; |
| sk_sp<SkShader> shader( |
| SkGradientShader::MakeRadial(SkPoint::Make(x, y), radius, colors, nullptr, 2, |
| SkShader::kClamp_TileMode) |
| ); |
| SkPaint paint; |
| paint.setShader(shader); |
| canvas->drawCircle(x, y, radius, paint); |
| } |
| |
| SkBitmap make_gradient_circle(int width, int height) { |
| SkBitmap bitmap; |
| bitmap.allocN32Pixels(width, height); |
| SkCanvas canvas(bitmap); |
| draw_gradient_circle(&canvas, width, height); |
| return bitmap; |
| } |
| |
| class FilterList { |
| public: |
| FilterList(sk_sp<SkImageFilter> input, const SkImageFilter::CropRect* cropRect = nullptr) { |
| SkPoint3 location = SkPoint3::Make(0, 0, SK_Scalar1); |
| const SkScalar five = SkIntToScalar(5); |
| |
| { |
| sk_sp<SkColorFilter> cf(SkColorFilter::MakeModeFilter(SK_ColorRED, |
| SkBlendMode::kSrcIn)); |
| |
| this->addFilter("color filter", |
| SkColorFilterImageFilter::Make(std::move(cf), input, cropRect)); |
| } |
| |
| { |
| sk_sp<SkImage> gradientImage(SkImage::MakeFromBitmap(make_gradient_circle(64, 64))); |
| sk_sp<SkImageFilter> gradientSource(SkImageSource::Make(std::move(gradientImage))); |
| |
| this->addFilter("displacement map", |
| SkDisplacementMapEffect::Make(SkDisplacementMapEffect::kR_ChannelSelectorType, |
| SkDisplacementMapEffect::kB_ChannelSelectorType, |
| 20.0f, |
| std::move(gradientSource), input, cropRect)); |
| } |
| |
| this->addFilter("blur", SkBlurImageFilter::Make(SK_Scalar1, |
| SK_Scalar1, |
| input, |
| cropRect)); |
| this->addFilter("drop shadow", SkDropShadowImageFilter::Make( |
| SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_ColorGREEN, |
| SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, |
| input, cropRect)); |
| this->addFilter("diffuse lighting", |
| SkLightingImageFilter::MakePointLitDiffuse(location, SK_ColorGREEN, 0, 0, |
| input, cropRect)); |
| this->addFilter("specular lighting", |
| SkLightingImageFilter::MakePointLitSpecular(location, SK_ColorGREEN, 0, 0, 0, |
| input, cropRect)); |
| { |
| SkScalar kernel[9] = { |
| SkIntToScalar(1), SkIntToScalar(1), SkIntToScalar(1), |
| SkIntToScalar(1), SkIntToScalar(-7), SkIntToScalar(1), |
| SkIntToScalar(1), SkIntToScalar(1), SkIntToScalar(1), |
| }; |
| const SkISize kernelSize = SkISize::Make(3, 3); |
| const SkScalar gain = SK_Scalar1, bias = 0; |
| |
| this->addFilter("matrix convolution", |
| SkMatrixConvolutionImageFilter::Make( |
| kernelSize, kernel, gain, bias, SkIPoint::Make(1, 1), |
| SkMatrixConvolutionImageFilter::kRepeat_TileMode, false, |
| input, cropRect)); |
| } |
| |
| this->addFilter("merge", SkMergeImageFilter::Make(input, input, cropRect)); |
| |
| { |
| SkPaint greenColorShaderPaint; |
| greenColorShaderPaint.setShader(SkShader::MakeColorShader(SK_ColorGREEN)); |
| |
| SkImageFilter::CropRect leftSideCropRect(SkRect::MakeXYWH(0, 0, 32, 64)); |
| sk_sp<SkImageFilter> paintFilterLeft(SkPaintImageFilter::Make(greenColorShaderPaint, |
| &leftSideCropRect)); |
| SkImageFilter::CropRect rightSideCropRect(SkRect::MakeXYWH(32, 0, 32, 64)); |
| sk_sp<SkImageFilter> paintFilterRight(SkPaintImageFilter::Make(greenColorShaderPaint, |
| &rightSideCropRect)); |
| |
| |
| this->addFilter("merge with disjoint inputs", SkMergeImageFilter::Make( |
| std::move(paintFilterLeft), std::move(paintFilterRight), cropRect)); |
| } |
| |
| this->addFilter("offset", |
| SkOffsetImageFilter::Make(SK_Scalar1, SK_Scalar1, input, |
| cropRect)); |
| this->addFilter("dilate", SkDilateImageFilter::Make(3, 2, input, cropRect)); |
| this->addFilter("erode", SkErodeImageFilter::Make(2, 3, input, cropRect)); |
| this->addFilter("tile", SkTileImageFilter::Make( |
| SkRect::MakeXYWH(0, 0, 50, 50), |
| cropRect ? cropRect->rect() : SkRect::MakeXYWH(0, 0, 100, 100), |
| input)); |
| |
| if (!cropRect) { |
| SkMatrix matrix; |
| |
| matrix.setTranslate(SK_Scalar1, SK_Scalar1); |
| matrix.postRotate(SkIntToScalar(45), SK_Scalar1, SK_Scalar1); |
| |
| this->addFilter("matrix", |
| SkImageFilter::MakeMatrixFilter(matrix, kLow_SkFilterQuality, input)); |
| } |
| { |
| sk_sp<SkImageFilter> blur(SkBlurImageFilter::Make(five, five, input)); |
| |
| this->addFilter("blur and offset", SkOffsetImageFilter::Make(five, five, |
| std::move(blur), |
| cropRect)); |
| } |
| { |
| SkPictureRecorder recorder; |
| SkCanvas* recordingCanvas = recorder.beginRecording(64, 64); |
| |
| SkPaint greenPaint; |
| greenPaint.setColor(SK_ColorGREEN); |
| recordingCanvas->drawRect(SkRect::Make(SkIRect::MakeXYWH(10, 10, 30, 20)), greenPaint); |
| sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture()); |
| sk_sp<SkImageFilter> pictureFilter(SkPictureImageFilter::Make(std::move(picture))); |
| |
| this->addFilter("picture and blur", SkBlurImageFilter::Make(five, five, |
| std::move(pictureFilter), |
| cropRect)); |
| } |
| { |
| SkPaint paint; |
| paint.setShader(SkPerlinNoiseShader::MakeTurbulence(SK_Scalar1, SK_Scalar1, 1, 0)); |
| sk_sp<SkImageFilter> paintFilter(SkPaintImageFilter::Make(paint)); |
| |
| this->addFilter("paint and blur", SkBlurImageFilter::Make(five, five, |
| std::move(paintFilter), |
| cropRect)); |
| } |
| this->addFilter("xfermode", SkXfermodeImageFilter::Make(SkBlendMode::kSrc, input, input, |
| cropRect)); |
| } |
| int count() const { return fFilters.count(); } |
| SkImageFilter* getFilter(int index) const { return fFilters[index].fFilter.get(); } |
| const char* getName(int index) const { return fFilters[index].fName; } |
| private: |
| struct Filter { |
| Filter() : fName(nullptr) {} |
| Filter(const char* name, sk_sp<SkImageFilter> filter) |
| : fName(name) |
| , fFilter(std::move(filter)) { |
| } |
| const char* fName; |
| sk_sp<SkImageFilter> fFilter; |
| }; |
| void addFilter(const char* name, sk_sp<SkImageFilter> filter) { |
| fFilters.push_back(Filter(name, std::move(filter))); |
| } |
| |
| SkTArray<Filter> fFilters; |
| }; |
| |
| class FixedBoundsImageFilter : public SkImageFilter { |
| public: |
| FixedBoundsImageFilter(const SkIRect& bounds) |
| : SkImageFilter(nullptr, 0, nullptr), fBounds(bounds) {} |
| |
| private: |
| #ifndef SK_IGNORE_TO_STRING |
| void toString(SkString*) const override {} |
| #endif |
| Factory getFactory() const override { return nullptr; } |
| |
| sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* src, const Context&, |
| SkIPoint* offset) const override { |
| return nullptr; |
| } |
| sk_sp<SkImageFilter> onMakeColorSpace(SkColorSpaceXformer*) const override { return nullptr; } |
| |
| SkIRect onFilterBounds(const SkIRect&, const SkMatrix&, MapDirection) const override { |
| return fBounds; |
| } |
| |
| SkIRect fBounds; |
| }; |
| } |
| |
| sk_sp<SkFlattenable> MatrixTestImageFilter::CreateProc(SkReadBuffer& buffer) { |
| SkDEBUGFAIL("Should never get here"); |
| return nullptr; |
| } |
| |
| #ifndef SK_IGNORE_TO_STRING |
| void MatrixTestImageFilter::toString(SkString* str) const { |
| str->appendf("MatrixTestImageFilter: ("); |
| str->append(")"); |
| } |
| #endif |
| |
| static sk_sp<SkImage> make_small_image() { |
| auto surface(SkSurface::MakeRasterN32Premul(kBitmapSize, kBitmapSize)); |
| SkCanvas* canvas = surface->getCanvas(); |
| canvas->clear(0x00000000); |
| SkPaint darkPaint; |
| darkPaint.setColor(0xFF804020); |
| SkPaint lightPaint; |
| lightPaint.setColor(0xFF244484); |
| const int i = kBitmapSize / 4; |
| for (int y = 0; y < kBitmapSize; y += i) { |
| for (int x = 0; x < kBitmapSize; x += i) { |
| canvas->save(); |
| canvas->translate(SkIntToScalar(x), SkIntToScalar(y)); |
| canvas->drawRect(SkRect::MakeXYWH(0, 0, |
| SkIntToScalar(i), |
| SkIntToScalar(i)), darkPaint); |
| canvas->drawRect(SkRect::MakeXYWH(SkIntToScalar(i), |
| 0, |
| SkIntToScalar(i), |
| SkIntToScalar(i)), lightPaint); |
| canvas->drawRect(SkRect::MakeXYWH(0, |
| SkIntToScalar(i), |
| SkIntToScalar(i), |
| SkIntToScalar(i)), lightPaint); |
| canvas->drawRect(SkRect::MakeXYWH(SkIntToScalar(i), |
| SkIntToScalar(i), |
| SkIntToScalar(i), |
| SkIntToScalar(i)), darkPaint); |
| canvas->restore(); |
| } |
| } |
| |
| return surface->makeImageSnapshot(); |
| } |
| |
| static sk_sp<SkImageFilter> make_scale(float amount, sk_sp<SkImageFilter> input) { |
| SkScalar s = amount; |
| SkScalar matrix[20] = { s, 0, 0, 0, 0, |
| 0, s, 0, 0, 0, |
| 0, 0, s, 0, 0, |
| 0, 0, 0, s, 0 }; |
| sk_sp<SkColorFilter> filter(SkColorFilter::MakeMatrixFilterRowMajor255(matrix)); |
| return SkColorFilterImageFilter::Make(std::move(filter), std::move(input)); |
| } |
| |
| static sk_sp<SkImageFilter> make_grayscale(sk_sp<SkImageFilter> input, |
| const SkImageFilter::CropRect* cropRect) { |
| SkScalar matrix[20]; |
| memset(matrix, 0, 20 * sizeof(SkScalar)); |
| matrix[0] = matrix[5] = matrix[10] = 0.2126f; |
| matrix[1] = matrix[6] = matrix[11] = 0.7152f; |
| matrix[2] = matrix[7] = matrix[12] = 0.0722f; |
| matrix[18] = 1.0f; |
| sk_sp<SkColorFilter> filter(SkColorFilter::MakeMatrixFilterRowMajor255(matrix)); |
| return SkColorFilterImageFilter::Make(std::move(filter), std::move(input), cropRect); |
| } |
| |
| static sk_sp<SkImageFilter> make_blue(sk_sp<SkImageFilter> input, |
| const SkImageFilter::CropRect* cropRect) { |
| sk_sp<SkColorFilter> filter(SkColorFilter::MakeModeFilter(SK_ColorBLUE, |
| SkBlendMode::kSrcIn)); |
| return SkColorFilterImageFilter::Make(std::move(filter), std::move(input), cropRect); |
| } |
| |
| static sk_sp<SkSpecialSurface> create_empty_special_surface(GrContext* context, int widthHeight) { |
| #if SK_SUPPORT_GPU |
| if (context) { |
| return SkSpecialSurface::MakeRenderTarget(context, |
| widthHeight, widthHeight, |
| kRGBA_8888_GrPixelConfig, nullptr); |
| } else |
| #endif |
| { |
| const SkImageInfo info = SkImageInfo::MakeN32(widthHeight, widthHeight, |
| kOpaque_SkAlphaType); |
| return SkSpecialSurface::MakeRaster(info); |
| } |
| } |
| |
| static sk_sp<SkSurface> create_surface(GrContext* context, int width, int height) { |
| const SkImageInfo info = SkImageInfo::MakeN32(width, height, kOpaque_SkAlphaType); |
| #if SK_SUPPORT_GPU |
| if (context) { |
| return SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, info); |
| } else |
| #endif |
| { |
| return SkSurface::MakeRaster(info); |
| } |
| } |
| |
| static sk_sp<SkSpecialImage> create_empty_special_image(GrContext* context, int widthHeight) { |
| sk_sp<SkSpecialSurface> surf(create_empty_special_surface(context, widthHeight)); |
| |
| SkASSERT(surf); |
| |
| SkCanvas* canvas = surf->getCanvas(); |
| SkASSERT(canvas); |
| |
| canvas->clear(0x0); |
| |
| return surf->makeImageSnapshot(); |
| } |
| |
| |
| DEF_TEST(ImageFilter, reporter) { |
| { |
| // Check that two non-clipping color-matrice-filters concatenate into a single filter. |
| sk_sp<SkImageFilter> halfBrightness(make_scale(0.5f, nullptr)); |
| sk_sp<SkImageFilter> quarterBrightness(make_scale(0.5f, std::move(halfBrightness))); |
| REPORTER_ASSERT(reporter, nullptr == quarterBrightness->getInput(0)); |
| SkColorFilter* cf; |
| REPORTER_ASSERT(reporter, quarterBrightness->asColorFilter(&cf)); |
| REPORTER_ASSERT(reporter, cf->asColorMatrix(nullptr)); |
| cf->unref(); |
| } |
| |
| { |
| // Check that a clipping color-matrice-filter followed by a color-matrice-filters |
| // concatenates into a single filter, but not a matrixfilter (due to clamping). |
| sk_sp<SkImageFilter> doubleBrightness(make_scale(2.0f, nullptr)); |
| sk_sp<SkImageFilter> halfBrightness(make_scale(0.5f, std::move(doubleBrightness))); |
| REPORTER_ASSERT(reporter, nullptr == halfBrightness->getInput(0)); |
| SkColorFilter* cf; |
| REPORTER_ASSERT(reporter, halfBrightness->asColorFilter(&cf)); |
| REPORTER_ASSERT(reporter, !cf->asColorMatrix(nullptr)); |
| cf->unref(); |
| } |
| |
| { |
| // Check that a color filter image filter without a crop rect can be |
| // expressed as a color filter. |
| sk_sp<SkImageFilter> gray(make_grayscale(nullptr, nullptr)); |
| REPORTER_ASSERT(reporter, true == gray->asColorFilter(nullptr)); |
| } |
| |
| { |
| // Check that a colorfilterimage filter without a crop rect but with an input |
| // that is another colorfilterimage can be expressed as a colorfilter (composed). |
| sk_sp<SkImageFilter> mode(make_blue(nullptr, nullptr)); |
| sk_sp<SkImageFilter> gray(make_grayscale(std::move(mode), nullptr)); |
| REPORTER_ASSERT(reporter, true == gray->asColorFilter(nullptr)); |
| } |
| |
| { |
| // Test that if we exceed the limit of what ComposeColorFilter can combine, we still |
| // can build the DAG and won't assert if we call asColorFilter. |
| sk_sp<SkImageFilter> filter(make_blue(nullptr, nullptr)); |
| const int kWayTooManyForComposeColorFilter = 100; |
| for (int i = 0; i < kWayTooManyForComposeColorFilter; ++i) { |
| filter = make_blue(filter, nullptr); |
| // the first few of these will succeed, but after we hit the internal limit, |
| // it will then return false. |
| (void)filter->asColorFilter(nullptr); |
| } |
| } |
| |
| { |
| // Check that a color filter image filter with a crop rect cannot |
| // be expressed as a color filter. |
| SkImageFilter::CropRect cropRect(SkRect::MakeXYWH(0, 0, 100, 100)); |
| sk_sp<SkImageFilter> grayWithCrop(make_grayscale(nullptr, &cropRect)); |
| REPORTER_ASSERT(reporter, false == grayWithCrop->asColorFilter(nullptr)); |
| } |
| |
| { |
| // Check that two non-commutative matrices are concatenated in |
| // the correct order. |
| SkScalar blueToRedMatrix[20] = { 0 }; |
| blueToRedMatrix[2] = blueToRedMatrix[18] = SK_Scalar1; |
| SkScalar redToGreenMatrix[20] = { 0 }; |
| redToGreenMatrix[5] = redToGreenMatrix[18] = SK_Scalar1; |
| sk_sp<SkColorFilter> blueToRed(SkColorFilter::MakeMatrixFilterRowMajor255(blueToRedMatrix)); |
| sk_sp<SkImageFilter> filter1(SkColorFilterImageFilter::Make(std::move(blueToRed), |
| nullptr)); |
| sk_sp<SkColorFilter> redToGreen(SkColorFilter::MakeMatrixFilterRowMajor255(redToGreenMatrix)); |
| sk_sp<SkImageFilter> filter2(SkColorFilterImageFilter::Make(std::move(redToGreen), |
| std::move(filter1))); |
| |
| SkBitmap result; |
| result.allocN32Pixels(kBitmapSize, kBitmapSize); |
| |
| SkPaint paint; |
| paint.setColor(SK_ColorBLUE); |
| paint.setImageFilter(std::move(filter2)); |
| SkCanvas canvas(result); |
| canvas.clear(0x0); |
| SkRect rect = SkRect::Make(SkIRect::MakeWH(kBitmapSize, kBitmapSize)); |
| canvas.drawRect(rect, paint); |
| uint32_t pixel = *result.getAddr32(0, 0); |
| // The result here should be green, since we have effectively shifted blue to green. |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| } |
| |
| { |
| // Tests pass by not asserting |
| sk_sp<SkImage> image(make_small_image()); |
| SkBitmap result; |
| result.allocN32Pixels(kBitmapSize, kBitmapSize); |
| |
| { |
| // This tests for : |
| // 1 ) location at (0,0,1) |
| SkPoint3 location = SkPoint3::Make(0, 0, SK_Scalar1); |
| // 2 ) location and target at same value |
| SkPoint3 target = SkPoint3::Make(location.fX, location.fY, location.fZ); |
| // 3 ) large negative specular exponent value |
| SkScalar specularExponent = -1000; |
| |
| sk_sp<SkImageFilter> bmSrc(SkImageSource::Make(std::move(image))); |
| SkPaint paint; |
| paint.setImageFilter(SkLightingImageFilter::MakeSpotLitSpecular( |
| location, target, specularExponent, 180, |
| 0xFFFFFFFF, SK_Scalar1, SK_Scalar1, SK_Scalar1, |
| std::move(bmSrc))); |
| SkCanvas canvas(result); |
| SkRect r = SkRect::MakeWH(SkIntToScalar(kBitmapSize), |
| SkIntToScalar(kBitmapSize)); |
| canvas.drawRect(r, paint); |
| } |
| } |
| } |
| |
| static void test_crop_rects(skiatest::Reporter* reporter, |
| GrContext* context) { |
| // Check that all filters offset to their absolute crop rect, |
| // unaffected by the input crop rect. |
| // Tests pass by not asserting. |
| sk_sp<SkSpecialImage> srcImg(create_empty_special_image(context, 100)); |
| SkASSERT(srcImg); |
| |
| SkImageFilter::CropRect inputCropRect(SkRect::MakeXYWH(8, 13, 80, 80)); |
| SkImageFilter::CropRect cropRect(SkRect::MakeXYWH(20, 30, 60, 60)); |
| sk_sp<SkImageFilter> input(make_grayscale(nullptr, &inputCropRect)); |
| |
| FilterList filters(input, &cropRect); |
| |
| for (int i = 0; i < filters.count(); ++i) { |
| SkImageFilter* filter = filters.getFilter(i); |
| SkIPoint offset; |
| SkImageFilter::OutputProperties noColorSpace(nullptr); |
| SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeWH(100, 100), nullptr, noColorSpace); |
| sk_sp<SkSpecialImage> resultImg(filter->filterImage(srcImg.get(), ctx, &offset)); |
| REPORTER_ASSERT_MESSAGE(reporter, resultImg, filters.getName(i)); |
| REPORTER_ASSERT_MESSAGE(reporter, offset.fX == 20 && offset.fY == 30, filters.getName(i)); |
| } |
| } |
| |
| static void test_negative_blur_sigma(skiatest::Reporter* reporter, |
| GrContext* context) { |
| // Check that SkBlurImageFilter will accept a negative sigma, either in |
| // the given arguments or after CTM application. |
| const int width = 32, height = 32; |
| const SkScalar five = SkIntToScalar(5); |
| |
| sk_sp<SkImageFilter> positiveFilter(SkBlurImageFilter::Make(five, five, nullptr)); |
| sk_sp<SkImageFilter> negativeFilter(SkBlurImageFilter::Make(-five, five, nullptr)); |
| |
| SkBitmap gradient = make_gradient_circle(width, height); |
| sk_sp<SkSpecialImage> imgSrc(SkSpecialImage::MakeFromRaster(SkIRect::MakeWH(width, height), |
| gradient)); |
| |
| SkIPoint offset; |
| SkImageFilter::OutputProperties noColorSpace(nullptr); |
| SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeWH(32, 32), nullptr, noColorSpace); |
| |
| sk_sp<SkSpecialImage> positiveResult1(positiveFilter->filterImage(imgSrc.get(), ctx, &offset)); |
| REPORTER_ASSERT(reporter, positiveResult1); |
| |
| sk_sp<SkSpecialImage> negativeResult1(negativeFilter->filterImage(imgSrc.get(), ctx, &offset)); |
| REPORTER_ASSERT(reporter, negativeResult1); |
| |
| SkMatrix negativeScale; |
| negativeScale.setScale(-SK_Scalar1, SK_Scalar1); |
| SkImageFilter::Context negativeCTX(negativeScale, SkIRect::MakeWH(32, 32), nullptr, |
| noColorSpace); |
| |
| sk_sp<SkSpecialImage> negativeResult2(positiveFilter->filterImage(imgSrc.get(), |
| negativeCTX, |
| &offset)); |
| REPORTER_ASSERT(reporter, negativeResult2); |
| |
| sk_sp<SkSpecialImage> positiveResult2(negativeFilter->filterImage(imgSrc.get(), |
| negativeCTX, |
| &offset)); |
| REPORTER_ASSERT(reporter, positiveResult2); |
| |
| |
| SkBitmap positiveResultBM1, positiveResultBM2; |
| SkBitmap negativeResultBM1, negativeResultBM2; |
| |
| REPORTER_ASSERT(reporter, positiveResult1->getROPixels(&positiveResultBM1)); |
| REPORTER_ASSERT(reporter, positiveResult2->getROPixels(&positiveResultBM2)); |
| REPORTER_ASSERT(reporter, negativeResult1->getROPixels(&negativeResultBM1)); |
| REPORTER_ASSERT(reporter, negativeResult2->getROPixels(&negativeResultBM2)); |
| |
| for (int y = 0; y < height; y++) { |
| int diffs = memcmp(positiveResultBM1.getAddr32(0, y), |
| negativeResultBM1.getAddr32(0, y), |
| positiveResultBM1.rowBytes()); |
| REPORTER_ASSERT(reporter, !diffs); |
| if (diffs) { |
| break; |
| } |
| diffs = memcmp(positiveResultBM1.getAddr32(0, y), |
| negativeResultBM2.getAddr32(0, y), |
| positiveResultBM1.rowBytes()); |
| REPORTER_ASSERT(reporter, !diffs); |
| if (diffs) { |
| break; |
| } |
| diffs = memcmp(positiveResultBM1.getAddr32(0, y), |
| positiveResultBM2.getAddr32(0, y), |
| positiveResultBM1.rowBytes()); |
| REPORTER_ASSERT(reporter, !diffs); |
| if (diffs) { |
| break; |
| } |
| } |
| } |
| |
| DEF_TEST(ImageFilterNegativeBlurSigma, reporter) { |
| test_negative_blur_sigma(reporter, nullptr); |
| } |
| |
| #if SK_SUPPORT_GPU |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterNegativeBlurSigma_Gpu, reporter, ctxInfo) { |
| test_negative_blur_sigma(reporter, ctxInfo.grContext()); |
| } |
| #endif |
| |
| static void test_zero_blur_sigma(skiatest::Reporter* reporter, GrContext* context) { |
| // Check that SkBlurImageFilter with a zero sigma and a non-zero srcOffset works correctly. |
| SkImageFilter::CropRect cropRect(SkRect::Make(SkIRect::MakeXYWH(5, 0, 5, 10))); |
| sk_sp<SkImageFilter> input(SkOffsetImageFilter::Make(0, 0, nullptr, &cropRect)); |
| sk_sp<SkImageFilter> filter(SkBlurImageFilter::Make(0, 0, std::move(input), &cropRect)); |
| |
| sk_sp<SkSpecialSurface> surf(create_empty_special_surface(context, 10)); |
| surf->getCanvas()->clear(SK_ColorGREEN); |
| sk_sp<SkSpecialImage> image(surf->makeImageSnapshot()); |
| |
| SkIPoint offset; |
| SkImageFilter::OutputProperties noColorSpace(nullptr); |
| SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeWH(32, 32), nullptr, noColorSpace); |
| |
| sk_sp<SkSpecialImage> result(filter->filterImage(image.get(), ctx, &offset)); |
| REPORTER_ASSERT(reporter, offset.fX == 5 && offset.fY == 0); |
| REPORTER_ASSERT(reporter, result); |
| REPORTER_ASSERT(reporter, result->width() == 5 && result->height() == 10); |
| |
| SkBitmap resultBM; |
| |
| REPORTER_ASSERT(reporter, result->getROPixels(&resultBM)); |
| |
| for (int y = 0; y < resultBM.height(); y++) { |
| for (int x = 0; x < resultBM.width(); x++) { |
| bool diff = *resultBM.getAddr32(x, y) != SK_ColorGREEN; |
| REPORTER_ASSERT(reporter, !diff); |
| if (diff) { |
| break; |
| } |
| } |
| } |
| } |
| |
| DEF_TEST(ImageFilterZeroBlurSigma, reporter) { |
| test_zero_blur_sigma(reporter, nullptr); |
| } |
| |
| #if SK_SUPPORT_GPU |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterZeroBlurSigma_Gpu, reporter, ctxInfo) { |
| test_zero_blur_sigma(reporter, ctxInfo.grContext()); |
| } |
| #endif |
| |
| |
| // Tests that, even when an upstream filter has returned null (due to failure or clipping), a |
| // downstream filter that affects transparent black still does so even with a nullptr input. |
| static void test_fail_affects_transparent_black(skiatest::Reporter* reporter, GrContext* context) { |
| sk_sp<FailImageFilter> failFilter(new FailImageFilter()); |
| sk_sp<SkSpecialImage> source(create_empty_special_image(context, 5)); |
| SkImageFilter::OutputProperties noColorSpace(nullptr); |
| SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeXYWH(0, 0, 1, 1), nullptr, noColorSpace); |
| sk_sp<SkColorFilter> green(SkColorFilter::MakeModeFilter(SK_ColorGREEN, SkBlendMode::kSrc)); |
| SkASSERT(green->affectsTransparentBlack()); |
| sk_sp<SkImageFilter> greenFilter(SkColorFilterImageFilter::Make(std::move(green), |
| std::move(failFilter))); |
| SkIPoint offset; |
| sk_sp<SkSpecialImage> result(greenFilter->filterImage(source.get(), ctx, &offset)); |
| REPORTER_ASSERT(reporter, nullptr != result.get()); |
| if (result.get()) { |
| SkBitmap resultBM; |
| REPORTER_ASSERT(reporter, result->getROPixels(&resultBM)); |
| REPORTER_ASSERT(reporter, *resultBM.getAddr32(0, 0) == SK_ColorGREEN); |
| } |
| } |
| |
| DEF_TEST(ImageFilterFailAffectsTransparentBlack, reporter) { |
| test_fail_affects_transparent_black(reporter, nullptr); |
| } |
| |
| #if SK_SUPPORT_GPU |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterFailAffectsTransparentBlack_Gpu, reporter, ctxInfo) { |
| test_fail_affects_transparent_black(reporter, ctxInfo.grContext()); |
| } |
| #endif |
| |
| DEF_TEST(ImageFilterDrawTiled, reporter) { |
| // Check that all filters when drawn tiled (with subsequent clip rects) exactly |
| // match the same filters drawn with a single full-canvas bitmap draw. |
| // Tests pass by not asserting. |
| |
| FilterList filters(nullptr); |
| |
| SkBitmap untiledResult, tiledResult; |
| const int width = 64, height = 64; |
| untiledResult.allocN32Pixels(width, height); |
| tiledResult.allocN32Pixels(width, height); |
| SkCanvas tiledCanvas(tiledResult); |
| SkCanvas untiledCanvas(untiledResult); |
| int tileSize = 8; |
| |
| for (int scale = 1; scale <= 2; ++scale) { |
| for (int i = 0; i < filters.count(); ++i) { |
| tiledCanvas.clear(0); |
| untiledCanvas.clear(0); |
| SkPaint paint; |
| paint.setImageFilter(sk_ref_sp(filters.getFilter(i))); |
| paint.setTextSize(SkIntToScalar(height)); |
| paint.setColor(SK_ColorWHITE); |
| SkString str; |
| const char* text = "ABC"; |
| SkScalar ypos = SkIntToScalar(height); |
| untiledCanvas.save(); |
| untiledCanvas.scale(SkIntToScalar(scale), SkIntToScalar(scale)); |
| untiledCanvas.drawString(text, 0, ypos, paint); |
| untiledCanvas.restore(); |
| for (int y = 0; y < height; y += tileSize) { |
| for (int x = 0; x < width; x += tileSize) { |
| tiledCanvas.save(); |
| tiledCanvas.clipRect(SkRect::Make(SkIRect::MakeXYWH(x, y, tileSize, tileSize))); |
| tiledCanvas.scale(SkIntToScalar(scale), SkIntToScalar(scale)); |
| tiledCanvas.drawString(text, 0, ypos, paint); |
| tiledCanvas.restore(); |
| } |
| } |
| untiledCanvas.flush(); |
| tiledCanvas.flush(); |
| if (!sk_tool_utils::equal_pixels(untiledResult, tiledResult, 1)) { |
| REPORTER_ASSERT_MESSAGE(reporter, false, filters.getName(i)); |
| break; |
| } |
| } |
| } |
| } |
| |
| static void draw_saveLayer_picture(int width, int height, int tileSize, |
| SkBBHFactory* factory, SkBitmap* result) { |
| |
| SkMatrix matrix; |
| matrix.setTranslate(SkIntToScalar(50), 0); |
| |
| sk_sp<SkColorFilter> cf(SkColorFilter::MakeModeFilter(SK_ColorWHITE, SkBlendMode::kSrc)); |
| sk_sp<SkImageFilter> cfif(SkColorFilterImageFilter::Make(std::move(cf), nullptr)); |
| sk_sp<SkImageFilter> imageFilter(SkImageFilter::MakeMatrixFilter(matrix, |
| kNone_SkFilterQuality, |
| std::move(cfif))); |
| |
| SkPaint paint; |
| paint.setImageFilter(std::move(imageFilter)); |
| SkPictureRecorder recorder; |
| SkRect bounds = SkRect::Make(SkIRect::MakeXYWH(0, 0, 50, 50)); |
| SkCanvas* recordingCanvas = recorder.beginRecording(SkIntToScalar(width), |
| SkIntToScalar(height), |
| factory, 0); |
| recordingCanvas->translate(-55, 0); |
| recordingCanvas->saveLayer(&bounds, &paint); |
| recordingCanvas->restore(); |
| sk_sp<SkPicture> picture1(recorder.finishRecordingAsPicture()); |
| |
| result->allocN32Pixels(width, height); |
| SkCanvas canvas(*result); |
| canvas.clear(0); |
| canvas.clipRect(SkRect::Make(SkIRect::MakeWH(tileSize, tileSize))); |
| canvas.drawPicture(picture1.get()); |
| } |
| |
| DEF_TEST(ImageFilterDrawMatrixBBH, reporter) { |
| // Check that matrix filter when drawn tiled with BBH exactly |
| // matches the same thing drawn without BBH. |
| // Tests pass by not asserting. |
| |
| const int width = 200, height = 200; |
| const int tileSize = 100; |
| SkBitmap result1, result2; |
| SkRTreeFactory factory; |
| |
| draw_saveLayer_picture(width, height, tileSize, &factory, &result1); |
| draw_saveLayer_picture(width, height, tileSize, nullptr, &result2); |
| |
| for (int y = 0; y < height; y++) { |
| int diffs = memcmp(result1.getAddr32(0, y), result2.getAddr32(0, y), result1.rowBytes()); |
| REPORTER_ASSERT(reporter, !diffs); |
| if (diffs) { |
| break; |
| } |
| } |
| } |
| |
| #if !defined(SK_SUPPORT_LEGACY_BLUR_IMAGE) |
| |
| static sk_sp<SkImageFilter> make_blur(sk_sp<SkImageFilter> input) { |
| return SkBlurImageFilter::Make(SK_Scalar1, SK_Scalar1, std::move(input)); |
| } |
| |
| static sk_sp<SkImageFilter> make_drop_shadow(sk_sp<SkImageFilter> input) { |
| return SkDropShadowImageFilter::Make( |
| SkIntToScalar(100), SkIntToScalar(100), |
| SkIntToScalar(10), SkIntToScalar(10), |
| SK_ColorBLUE, SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode, |
| std::move(input)); |
| } |
| |
| DEF_TEST(ImageFilterBlurThenShadowBounds, reporter) { |
| sk_sp<SkImageFilter> filter1(make_blur(nullptr)); |
| sk_sp<SkImageFilter> filter2(make_drop_shadow(std::move(filter1))); |
| |
| SkIRect bounds = SkIRect::MakeXYWH(0, 0, 100, 100); |
| SkIRect expectedBounds = SkIRect::MakeXYWH(-133, -133, 236, 236); |
| bounds = filter2->filterBounds(bounds, SkMatrix::I()); |
| |
| REPORTER_ASSERT(reporter, bounds == expectedBounds); |
| } |
| |
| DEF_TEST(ImageFilterShadowThenBlurBounds, reporter) { |
| sk_sp<SkImageFilter> filter1(make_drop_shadow(nullptr)); |
| sk_sp<SkImageFilter> filter2(make_blur(std::move(filter1))); |
| |
| SkIRect bounds = SkIRect::MakeXYWH(0, 0, 100, 100); |
| SkIRect expectedBounds = SkIRect::MakeXYWH(-133, -133, 236, 236); |
| bounds = filter2->filterBounds(bounds, SkMatrix::I()); |
| |
| REPORTER_ASSERT(reporter, bounds == expectedBounds); |
| } |
| |
| DEF_TEST(ImageFilterDilateThenBlurBounds, reporter) { |
| sk_sp<SkImageFilter> filter1(SkDilateImageFilter::Make(2, 2, nullptr)); |
| sk_sp<SkImageFilter> filter2(make_drop_shadow(std::move(filter1))); |
| |
| SkIRect bounds = SkIRect::MakeXYWH(0, 0, 100, 100); |
| SkIRect expectedBounds = SkIRect::MakeXYWH(-132, -132, 234, 234); |
| bounds = filter2->filterBounds(bounds, SkMatrix::I()); |
| |
| REPORTER_ASSERT(reporter, bounds == expectedBounds); |
| } |
| |
| DEF_TEST(ImageFilterScaledBlurRadius, reporter) { |
| // Each blur should spread 3*sigma, so 3 for the blur and 30 for the shadow |
| // (before the CTM). Bounds should be computed correctly in the presence of |
| // a (possibly negative) scale. |
| sk_sp<SkImageFilter> blur(make_blur(nullptr)); |
| sk_sp<SkImageFilter> dropShadow(make_drop_shadow(nullptr)); |
| { |
| // Uniform scale by 2. |
| SkMatrix scaleMatrix; |
| scaleMatrix.setScale(2, 2); |
| SkIRect bounds = SkIRect::MakeLTRB(0, 0, 200, 200); |
| |
| SkIRect expectedBlurBounds = SkIRect::MakeLTRB(-6, -6, 206, 206); |
| SkIRect blurBounds = blur->filterBounds( |
| bounds, scaleMatrix, SkImageFilter::kForward_MapDirection); |
| REPORTER_ASSERT(reporter, blurBounds == expectedBlurBounds); |
| SkIRect reverseBlurBounds = blur->filterBounds( |
| bounds, scaleMatrix, SkImageFilter::kReverse_MapDirection); |
| REPORTER_ASSERT(reporter, reverseBlurBounds == expectedBlurBounds); |
| |
| SkIRect expectedShadowBounds = SkIRect::MakeLTRB(0, 0, 460, 460); |
| SkIRect shadowBounds = dropShadow->filterBounds( |
| bounds, scaleMatrix, SkImageFilter::kForward_MapDirection); |
| REPORTER_ASSERT(reporter, shadowBounds == expectedShadowBounds); |
| SkIRect expectedReverseShadowBounds = |
| SkIRect::MakeLTRB(-260, -260, 200, 200); |
| SkIRect reverseShadowBounds = dropShadow->filterBounds( |
| bounds, scaleMatrix, SkImageFilter::kReverse_MapDirection); |
| REPORTER_ASSERT(reporter, |
| reverseShadowBounds == expectedReverseShadowBounds); |
| } |
| { |
| // Vertical flip. |
| SkMatrix scaleMatrix; |
| scaleMatrix.setScale(1, -1); |
| SkIRect bounds = SkIRect::MakeLTRB(0, -100, 100, 0); |
| |
| SkIRect expectedBlurBounds = SkIRect::MakeLTRB(-3, -103, 103, 3); |
| SkIRect blurBounds = blur->filterBounds( |
| bounds, scaleMatrix, SkImageFilter::kForward_MapDirection); |
| REPORTER_ASSERT(reporter, blurBounds == expectedBlurBounds); |
| SkIRect reverseBlurBounds = blur->filterBounds( |
| bounds, scaleMatrix, SkImageFilter::kReverse_MapDirection); |
| REPORTER_ASSERT(reporter, reverseBlurBounds == expectedBlurBounds); |
| |
| SkIRect expectedShadowBounds = SkIRect::MakeLTRB(0, -230, 230, 0); |
| SkIRect shadowBounds = dropShadow->filterBounds( |
| bounds, scaleMatrix, SkImageFilter::kForward_MapDirection); |
| REPORTER_ASSERT(reporter, shadowBounds == expectedShadowBounds); |
| SkIRect expectedReverseShadowBounds = |
| SkIRect::MakeLTRB(-130, -100, 100, 130); |
| SkIRect reverseShadowBounds = dropShadow->filterBounds( |
| bounds, scaleMatrix, SkImageFilter::kReverse_MapDirection); |
| REPORTER_ASSERT(reporter, |
| reverseShadowBounds == expectedReverseShadowBounds); |
| } |
| } |
| |
| DEF_TEST(ImageFilterComposedBlurFastBounds, reporter) { |
| sk_sp<SkImageFilter> filter1(make_blur(nullptr)); |
| sk_sp<SkImageFilter> filter2(make_blur(nullptr)); |
| sk_sp<SkImageFilter> composedFilter(SkComposeImageFilter::Make(std::move(filter1), |
| std::move(filter2))); |
| |
| SkRect boundsSrc = SkRect::MakeWH(SkIntToScalar(100), SkIntToScalar(100)); |
| SkRect expectedBounds = SkRect::MakeXYWH( |
| SkIntToScalar(-6), SkIntToScalar(-6), SkIntToScalar(112), SkIntToScalar(112)); |
| SkRect boundsDst = composedFilter->computeFastBounds(boundsSrc); |
| |
| REPORTER_ASSERT(reporter, boundsDst == expectedBounds); |
| } |
| |
| #endif |
| |
| DEF_TEST(ImageFilterUnionBounds, reporter) { |
| sk_sp<SkImageFilter> offset(SkOffsetImageFilter::Make(50, 0, nullptr)); |
| // Regardless of which order they appear in, the image filter bounds should |
| // be combined correctly. |
| { |
| sk_sp<SkImageFilter> composite(SkXfermodeImageFilter::Make(SkBlendMode::kSrcOver, offset)); |
| SkRect bounds = SkRect::MakeWH(100, 100); |
| // Intentionally aliasing here, as that's what the real callers do. |
| bounds = composite->computeFastBounds(bounds); |
| REPORTER_ASSERT(reporter, bounds == SkRect::MakeWH(150, 100)); |
| } |
| { |
| sk_sp<SkImageFilter> composite(SkXfermodeImageFilter::Make(SkBlendMode::kSrcOver, nullptr, |
| offset, nullptr)); |
| SkRect bounds = SkRect::MakeWH(100, 100); |
| // Intentionally aliasing here, as that's what the real callers do. |
| bounds = composite->computeFastBounds(bounds); |
| REPORTER_ASSERT(reporter, bounds == SkRect::MakeWH(150, 100)); |
| } |
| } |
| |
| static void test_imagefilter_merge_result_size(skiatest::Reporter* reporter, GrContext* context) { |
| SkBitmap greenBM; |
| greenBM.allocN32Pixels(20, 20); |
| greenBM.eraseColor(SK_ColorGREEN); |
| sk_sp<SkImage> greenImage(SkImage::MakeFromBitmap(greenBM)); |
| sk_sp<SkImageFilter> source(SkImageSource::Make(std::move(greenImage))); |
| sk_sp<SkImageFilter> merge(SkMergeImageFilter::Make(source, source)); |
| |
| sk_sp<SkSpecialImage> srcImg(create_empty_special_image(context, 1)); |
| |
| SkImageFilter::OutputProperties noColorSpace(nullptr); |
| SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeXYWH(0, 0, 100, 100), nullptr, |
| noColorSpace); |
| SkIPoint offset; |
| |
| sk_sp<SkSpecialImage> resultImg(merge->filterImage(srcImg.get(), ctx, &offset)); |
| REPORTER_ASSERT(reporter, resultImg); |
| |
| REPORTER_ASSERT(reporter, resultImg->width() == 20 && resultImg->height() == 20); |
| } |
| |
| DEF_TEST(ImageFilterMergeResultSize, reporter) { |
| test_imagefilter_merge_result_size(reporter, nullptr); |
| } |
| |
| #if SK_SUPPORT_GPU |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterMergeResultSize_Gpu, reporter, ctxInfo) { |
| test_imagefilter_merge_result_size(reporter, ctxInfo.grContext()); |
| } |
| #endif |
| |
| static void draw_blurred_rect(SkCanvas* canvas) { |
| SkPaint filterPaint; |
| filterPaint.setColor(SK_ColorWHITE); |
| filterPaint.setImageFilter(SkBlurImageFilter::Make(SkIntToScalar(8), 0, nullptr)); |
| canvas->saveLayer(nullptr, &filterPaint); |
| SkPaint whitePaint; |
| whitePaint.setColor(SK_ColorWHITE); |
| canvas->drawRect(SkRect::Make(SkIRect::MakeWH(4, 4)), whitePaint); |
| canvas->restore(); |
| } |
| |
| static void draw_picture_clipped(SkCanvas* canvas, const SkRect& clipRect, const SkPicture* picture) { |
| canvas->save(); |
| canvas->clipRect(clipRect); |
| canvas->drawPicture(picture); |
| canvas->restore(); |
| } |
| |
| DEF_TEST(ImageFilterDrawTiledBlurRTree, reporter) { |
| // Check that the blur filter when recorded with RTree acceleration, |
| // and drawn tiled (with subsequent clip rects) exactly |
| // matches the same filter drawn with without RTree acceleration. |
| // This tests that the "bleed" from the blur into the otherwise-blank |
| // tiles is correctly rendered. |
| // Tests pass by not asserting. |
| |
| int width = 16, height = 8; |
| SkBitmap result1, result2; |
| result1.allocN32Pixels(width, height); |
| result2.allocN32Pixels(width, height); |
| SkCanvas canvas1(result1); |
| SkCanvas canvas2(result2); |
| int tileSize = 8; |
| |
| canvas1.clear(0); |
| canvas2.clear(0); |
| |
| SkRTreeFactory factory; |
| |
| SkPictureRecorder recorder1, recorder2; |
| // The only difference between these two pictures is that one has RTree aceleration. |
| SkCanvas* recordingCanvas1 = recorder1.beginRecording(SkIntToScalar(width), |
| SkIntToScalar(height), |
| nullptr, 0); |
| SkCanvas* recordingCanvas2 = recorder2.beginRecording(SkIntToScalar(width), |
| SkIntToScalar(height), |
| &factory, 0); |
| draw_blurred_rect(recordingCanvas1); |
| draw_blurred_rect(recordingCanvas2); |
| sk_sp<SkPicture> picture1(recorder1.finishRecordingAsPicture()); |
| sk_sp<SkPicture> picture2(recorder2.finishRecordingAsPicture()); |
| for (int y = 0; y < height; y += tileSize) { |
| for (int x = 0; x < width; x += tileSize) { |
| SkRect tileRect = SkRect::Make(SkIRect::MakeXYWH(x, y, tileSize, tileSize)); |
| draw_picture_clipped(&canvas1, tileRect, picture1.get()); |
| draw_picture_clipped(&canvas2, tileRect, picture2.get()); |
| } |
| } |
| for (int y = 0; y < height; y++) { |
| int diffs = memcmp(result1.getAddr32(0, y), result2.getAddr32(0, y), result1.rowBytes()); |
| REPORTER_ASSERT(reporter, !diffs); |
| if (diffs) { |
| break; |
| } |
| } |
| } |
| |
| DEF_TEST(ImageFilterMatrixConvolution, reporter) { |
| // Check that a 1x3 filter does not cause a spurious assert. |
| SkScalar kernel[3] = { |
| SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1), |
| }; |
| SkISize kernelSize = SkISize::Make(1, 3); |
| SkScalar gain = SK_Scalar1, bias = 0; |
| SkIPoint kernelOffset = SkIPoint::Make(0, 0); |
| |
| sk_sp<SkImageFilter> filter(SkMatrixConvolutionImageFilter::Make( |
| kernelSize, kernel, |
| gain, bias, kernelOffset, |
| SkMatrixConvolutionImageFilter::kRepeat_TileMode, |
| false, nullptr)); |
| |
| SkBitmap result; |
| int width = 16, height = 16; |
| result.allocN32Pixels(width, height); |
| SkCanvas canvas(result); |
| canvas.clear(0); |
| |
| SkPaint paint; |
| paint.setImageFilter(std::move(filter)); |
| SkRect rect = SkRect::Make(SkIRect::MakeWH(width, height)); |
| canvas.drawRect(rect, paint); |
| } |
| |
| DEF_TEST(ImageFilterMatrixConvolutionBorder, reporter) { |
| // Check that a filter with borders outside the target bounds |
| // does not crash. |
| SkScalar kernel[3] = { |
| 0, 0, 0, |
| }; |
| SkISize kernelSize = SkISize::Make(3, 1); |
| SkScalar gain = SK_Scalar1, bias = 0; |
| SkIPoint kernelOffset = SkIPoint::Make(2, 0); |
| |
| sk_sp<SkImageFilter> filter(SkMatrixConvolutionImageFilter::Make( |
| kernelSize, kernel, gain, bias, kernelOffset, |
| SkMatrixConvolutionImageFilter::kClamp_TileMode, |
| true, nullptr)); |
| |
| SkBitmap result; |
| |
| int width = 10, height = 10; |
| result.allocN32Pixels(width, height); |
| SkCanvas canvas(result); |
| canvas.clear(0); |
| |
| SkPaint filterPaint; |
| filterPaint.setImageFilter(std::move(filter)); |
| SkRect bounds = SkRect::MakeWH(1, 10); |
| SkRect rect = SkRect::Make(SkIRect::MakeWH(width, height)); |
| SkPaint rectPaint; |
| canvas.saveLayer(&bounds, &filterPaint); |
| canvas.drawRect(rect, rectPaint); |
| canvas.restore(); |
| } |
| |
| static void test_big_kernel(skiatest::Reporter* reporter, GrContext* context) { |
| // Check that a kernel that is too big for the GPU still works |
| SkScalar identityKernel[49] = { |
| 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 1, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 0, 0, 0 |
| }; |
| SkISize kernelSize = SkISize::Make(7, 7); |
| SkScalar gain = SK_Scalar1, bias = 0; |
| SkIPoint kernelOffset = SkIPoint::Make(0, 0); |
| |
| sk_sp<SkImageFilter> filter(SkMatrixConvolutionImageFilter::Make( |
| kernelSize, identityKernel, gain, bias, kernelOffset, |
| SkMatrixConvolutionImageFilter::kClamp_TileMode, |
| true, nullptr)); |
| |
| sk_sp<SkSpecialImage> srcImg(create_empty_special_image(context, 100)); |
| SkASSERT(srcImg); |
| |
| SkIPoint offset; |
| SkImageFilter::OutputProperties noColorSpace(nullptr); |
| SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeWH(100, 100), nullptr, noColorSpace); |
| sk_sp<SkSpecialImage> resultImg(filter->filterImage(srcImg.get(), ctx, &offset)); |
| REPORTER_ASSERT(reporter, resultImg); |
| REPORTER_ASSERT(reporter, SkToBool(context) == resultImg->isTextureBacked()); |
| REPORTER_ASSERT(reporter, resultImg->width() == 100 && resultImg->height() == 100); |
| REPORTER_ASSERT(reporter, offset.fX == 0 && offset.fY == 0); |
| } |
| |
| DEF_TEST(ImageFilterMatrixConvolutionBigKernel, reporter) { |
| test_big_kernel(reporter, nullptr); |
| } |
| |
| #if SK_SUPPORT_GPU |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterMatrixConvolutionBigKernel_Gpu, |
| reporter, ctxInfo) { |
| test_big_kernel(reporter, ctxInfo.grContext()); |
| } |
| #endif |
| |
| DEF_TEST(ImageFilterCropRect, reporter) { |
| test_crop_rects(reporter, nullptr); |
| } |
| |
| #if SK_SUPPORT_GPU |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterCropRect_Gpu, reporter, ctxInfo) { |
| test_crop_rects(reporter, ctxInfo.grContext()); |
| } |
| #endif |
| |
| DEF_TEST(ImageFilterMatrix, reporter) { |
| SkBitmap temp; |
| temp.allocN32Pixels(100, 100); |
| SkCanvas canvas(temp); |
| canvas.scale(SkIntToScalar(2), SkIntToScalar(2)); |
| |
| SkMatrix expectedMatrix = canvas.getTotalMatrix(); |
| |
| SkRTreeFactory factory; |
| SkPictureRecorder recorder; |
| SkCanvas* recordingCanvas = recorder.beginRecording(100, 100, &factory, 0); |
| |
| SkPaint paint; |
| paint.setImageFilter(MatrixTestImageFilter::Make(reporter, expectedMatrix)); |
| recordingCanvas->saveLayer(nullptr, &paint); |
| SkPaint solidPaint; |
| solidPaint.setColor(0xFFFFFFFF); |
| recordingCanvas->save(); |
| recordingCanvas->scale(SkIntToScalar(10), SkIntToScalar(10)); |
| recordingCanvas->drawRect(SkRect::Make(SkIRect::MakeWH(100, 100)), solidPaint); |
| recordingCanvas->restore(); // scale |
| recordingCanvas->restore(); // saveLayer |
| |
| canvas.drawPicture(recorder.finishRecordingAsPicture()); |
| } |
| |
| DEF_TEST(ImageFilterCrossProcessPictureImageFilter, reporter) { |
| SkRTreeFactory factory; |
| SkPictureRecorder recorder; |
| SkCanvas* recordingCanvas = recorder.beginRecording(1, 1, &factory, 0); |
| |
| // Create an SkPicture which simply draws a green 1x1 rectangle. |
| SkPaint greenPaint; |
| greenPaint.setColor(SK_ColorGREEN); |
| recordingCanvas->drawRect(SkRect::Make(SkIRect::MakeWH(1, 1)), greenPaint); |
| sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture()); |
| |
| // Wrap that SkPicture in an SkPictureImageFilter. |
| sk_sp<SkImageFilter> imageFilter(SkPictureImageFilter::Make(picture)); |
| |
| // Check that SkPictureImageFilter successfully serializes its contained |
| // SkPicture when not in cross-process mode. |
| SkPaint paint; |
| paint.setImageFilter(imageFilter); |
| SkPictureRecorder outerRecorder; |
| SkCanvas* outerCanvas = outerRecorder.beginRecording(1, 1, &factory, 0); |
| SkPaint redPaintWithFilter; |
| redPaintWithFilter.setColor(SK_ColorRED); |
| redPaintWithFilter.setImageFilter(imageFilter); |
| outerCanvas->drawRect(SkRect::Make(SkIRect::MakeWH(1, 1)), redPaintWithFilter); |
| sk_sp<SkPicture> outerPicture(outerRecorder.finishRecordingAsPicture()); |
| |
| SkBitmap bitmap; |
| bitmap.allocN32Pixels(1, 1); |
| SkCanvas canvas(bitmap); |
| |
| // The result here should be green, since the filter replaces the primitive's red interior. |
| canvas.clear(0x0); |
| canvas.drawPicture(outerPicture); |
| uint32_t pixel = *bitmap.getAddr32(0, 0); |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| |
| // Check that, for now, SkPictureImageFilter does not serialize or |
| // deserialize its contained picture when the filter is serialized |
| // cross-process. Do this by "laundering" it through SkValidatingReadBuffer. |
| sk_sp<SkData> data(SkValidatingSerializeFlattenable(imageFilter.get())); |
| sk_sp<SkImageFilter> unflattenedFilter = SkValidatingDeserializeImageFilter(data->data(), |
| data->size()); |
| |
| redPaintWithFilter.setImageFilter(unflattenedFilter); |
| SkPictureRecorder crossProcessRecorder; |
| SkCanvas* crossProcessCanvas = crossProcessRecorder.beginRecording(1, 1, &factory, 0); |
| crossProcessCanvas->drawRect(SkRect::Make(SkIRect::MakeWH(1, 1)), redPaintWithFilter); |
| sk_sp<SkPicture> crossProcessPicture(crossProcessRecorder.finishRecordingAsPicture()); |
| |
| canvas.clear(0x0); |
| canvas.drawPicture(crossProcessPicture); |
| pixel = *bitmap.getAddr32(0, 0); |
| // If the security precautions are enabled, the result here should not be green, since the |
| // filter draws nothing. |
| REPORTER_ASSERT(reporter, SkPicture::PictureIOSecurityPrecautionsEnabled() |
| ? pixel != SK_ColorGREEN : pixel == SK_ColorGREEN); |
| } |
| |
| static void test_clipped_picture_imagefilter(skiatest::Reporter* reporter, GrContext* context) { |
| sk_sp<SkPicture> picture; |
| |
| { |
| SkRTreeFactory factory; |
| SkPictureRecorder recorder; |
| SkCanvas* recordingCanvas = recorder.beginRecording(1, 1, &factory, 0); |
| |
| // Create an SkPicture which simply draws a green 1x1 rectangle. |
| SkPaint greenPaint; |
| greenPaint.setColor(SK_ColorGREEN); |
| recordingCanvas->drawRect(SkRect::Make(SkIRect::MakeWH(1, 1)), greenPaint); |
| picture = recorder.finishRecordingAsPicture(); |
| } |
| |
| sk_sp<SkSpecialImage> srcImg(create_empty_special_image(context, 2)); |
| |
| sk_sp<SkImageFilter> imageFilter(SkPictureImageFilter::Make(picture)); |
| |
| SkIPoint offset; |
| SkImageFilter::OutputProperties noColorSpace(nullptr); |
| SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeXYWH(1, 1, 1, 1), nullptr, noColorSpace); |
| |
| sk_sp<SkSpecialImage> resultImage(imageFilter->filterImage(srcImg.get(), ctx, &offset)); |
| REPORTER_ASSERT(reporter, !resultImage); |
| } |
| |
| DEF_TEST(ImageFilterClippedPictureImageFilter, reporter) { |
| test_clipped_picture_imagefilter(reporter, nullptr); |
| } |
| |
| #if SK_SUPPORT_GPU |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterClippedPictureImageFilter_Gpu, reporter, ctxInfo) { |
| test_clipped_picture_imagefilter(reporter, ctxInfo.grContext()); |
| } |
| #endif |
| |
| DEF_TEST(ImageFilterEmptySaveLayer, reporter) { |
| // Even when there's an empty saveLayer()/restore(), ensure that an image |
| // filter or color filter which affects transparent black still draws. |
| |
| SkBitmap bitmap; |
| bitmap.allocN32Pixels(10, 10); |
| SkCanvas canvas(bitmap); |
| |
| SkRTreeFactory factory; |
| SkPictureRecorder recorder; |
| |
| sk_sp<SkColorFilter> green(SkColorFilter::MakeModeFilter(SK_ColorGREEN, |
| SkBlendMode::kSrc)); |
| sk_sp<SkImageFilter> imageFilter(SkColorFilterImageFilter::Make(green, nullptr)); |
| SkPaint imageFilterPaint; |
| imageFilterPaint.setImageFilter(std::move(imageFilter)); |
| SkPaint colorFilterPaint; |
| colorFilterPaint.setColorFilter(green); |
| |
| SkRect bounds = SkRect::MakeWH(10, 10); |
| |
| SkCanvas* recordingCanvas = recorder.beginRecording(10, 10, &factory, 0); |
| recordingCanvas->saveLayer(&bounds, &imageFilterPaint); |
| recordingCanvas->restore(); |
| sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture()); |
| |
| canvas.clear(0); |
| canvas.drawPicture(picture); |
| uint32_t pixel = *bitmap.getAddr32(0, 0); |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| |
| recordingCanvas = recorder.beginRecording(10, 10, &factory, 0); |
| recordingCanvas->saveLayer(nullptr, &imageFilterPaint); |
| recordingCanvas->restore(); |
| sk_sp<SkPicture> picture2(recorder.finishRecordingAsPicture()); |
| |
| canvas.clear(0); |
| canvas.drawPicture(picture2); |
| pixel = *bitmap.getAddr32(0, 0); |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| |
| recordingCanvas = recorder.beginRecording(10, 10, &factory, 0); |
| recordingCanvas->saveLayer(&bounds, &colorFilterPaint); |
| recordingCanvas->restore(); |
| sk_sp<SkPicture> picture3(recorder.finishRecordingAsPicture()); |
| |
| canvas.clear(0); |
| canvas.drawPicture(picture3); |
| pixel = *bitmap.getAddr32(0, 0); |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| } |
| |
| static void test_huge_blur(SkCanvas* canvas, skiatest::Reporter* reporter) { |
| SkBitmap bitmap; |
| bitmap.allocN32Pixels(100, 100); |
| bitmap.eraseARGB(0, 0, 0, 0); |
| |
| // Check that a blur with an insane radius does not crash or assert. |
| SkPaint paint; |
| paint.setImageFilter(SkBlurImageFilter::Make(SkIntToScalar(1<<30), |
| SkIntToScalar(1<<30), |
| nullptr)); |
| canvas->drawBitmap(bitmap, 0, 0, &paint); |
| } |
| |
| DEF_TEST(HugeBlurImageFilter, reporter) { |
| SkBitmap temp; |
| temp.allocN32Pixels(100, 100); |
| SkCanvas canvas(temp); |
| test_huge_blur(&canvas, reporter); |
| } |
| |
| DEF_TEST(ImageFilterMatrixConvolutionSanityTest, reporter) { |
| SkScalar kernel[1] = { 0 }; |
| SkScalar gain = SK_Scalar1, bias = 0; |
| SkIPoint kernelOffset = SkIPoint::Make(1, 1); |
| |
| // Check that an enormous (non-allocatable) kernel gives a nullptr filter. |
| sk_sp<SkImageFilter> conv(SkMatrixConvolutionImageFilter::Make( |
| SkISize::Make(1<<30, 1<<30), |
| kernel, |
| gain, |
| bias, |
| kernelOffset, |
| SkMatrixConvolutionImageFilter::kRepeat_TileMode, |
| false, |
| nullptr)); |
| |
| REPORTER_ASSERT(reporter, nullptr == conv.get()); |
| |
| // Check that a nullptr kernel gives a nullptr filter. |
| conv = SkMatrixConvolutionImageFilter::Make( |
| SkISize::Make(1, 1), |
| nullptr, |
| gain, |
| bias, |
| kernelOffset, |
| SkMatrixConvolutionImageFilter::kRepeat_TileMode, |
| false, |
| nullptr); |
| |
| REPORTER_ASSERT(reporter, nullptr == conv.get()); |
| |
| // Check that a kernel width < 1 gives a nullptr filter. |
| conv = SkMatrixConvolutionImageFilter::Make( |
| SkISize::Make(0, 1), |
| kernel, |
| gain, |
| bias, |
| kernelOffset, |
| SkMatrixConvolutionImageFilter::kRepeat_TileMode, |
| false, |
| nullptr); |
| |
| REPORTER_ASSERT(reporter, nullptr == conv.get()); |
| |
| // Check that kernel height < 1 gives a nullptr filter. |
| conv = SkMatrixConvolutionImageFilter::Make( |
| SkISize::Make(1, -1), |
| kernel, |
| gain, |
| bias, |
| kernelOffset, |
| SkMatrixConvolutionImageFilter::kRepeat_TileMode, |
| false, |
| nullptr); |
| |
| REPORTER_ASSERT(reporter, nullptr == conv.get()); |
| } |
| |
| static void test_xfermode_cropped_input(SkSurface* surf, skiatest::Reporter* reporter) { |
| auto canvas = surf->getCanvas(); |
| canvas->clear(0); |
| |
| SkBitmap bitmap; |
| bitmap.allocN32Pixels(1, 1); |
| bitmap.eraseARGB(255, 255, 255, 255); |
| |
| sk_sp<SkColorFilter> green(SkColorFilter::MakeModeFilter(SK_ColorGREEN, |
| SkBlendMode::kSrcIn)); |
| sk_sp<SkImageFilter> greenFilter(SkColorFilterImageFilter::Make(green, nullptr)); |
| SkImageFilter::CropRect cropRect(SkRect::MakeEmpty()); |
| sk_sp<SkImageFilter> croppedOut(SkColorFilterImageFilter::Make(green, nullptr, &cropRect)); |
| |
| // Check that an xfermode image filter whose input has been cropped out still draws the other |
| // input. Also check that drawing with both inputs cropped out doesn't cause a GPU warning. |
| SkBlendMode mode = SkBlendMode::kSrcOver; |
| sk_sp<SkImageFilter> xfermodeNoFg(SkXfermodeImageFilter::Make(mode, greenFilter, |
| croppedOut, nullptr)); |
| sk_sp<SkImageFilter> xfermodeNoBg(SkXfermodeImageFilter::Make(mode, croppedOut, |
| greenFilter, nullptr)); |
| sk_sp<SkImageFilter> xfermodeNoFgNoBg(SkXfermodeImageFilter::Make(mode, croppedOut, |
| croppedOut, nullptr)); |
| |
| SkPaint paint; |
| paint.setImageFilter(std::move(xfermodeNoFg)); |
| canvas->drawBitmap(bitmap, 0, 0, &paint); // drawSprite |
| |
| uint32_t pixel; |
| SkImageInfo info = SkImageInfo::Make(1, 1, kBGRA_8888_SkColorType, kUnpremul_SkAlphaType); |
| surf->readPixels(info, &pixel, 4, 0, 0); |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| |
| paint.setImageFilter(std::move(xfermodeNoBg)); |
| canvas->drawBitmap(bitmap, 0, 0, &paint); // drawSprite |
| surf->readPixels(info, &pixel, 4, 0, 0); |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| |
| paint.setImageFilter(std::move(xfermodeNoFgNoBg)); |
| canvas->drawBitmap(bitmap, 0, 0, &paint); // drawSprite |
| surf->readPixels(info, &pixel, 4, 0, 0); |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| } |
| |
| DEF_TEST(ImageFilterNestedSaveLayer, reporter) { |
| SkBitmap temp; |
| temp.allocN32Pixels(50, 50); |
| SkCanvas canvas(temp); |
| canvas.clear(0x0); |
| |
| SkBitmap bitmap; |
| bitmap.allocN32Pixels(10, 10); |
| bitmap.eraseColor(SK_ColorGREEN); |
| |
| SkMatrix matrix; |
| matrix.setScale(SkIntToScalar(2), SkIntToScalar(2)); |
| matrix.postTranslate(SkIntToScalar(-20), SkIntToScalar(-20)); |
| sk_sp<SkImageFilter> matrixFilter( |
| SkImageFilter::MakeMatrixFilter(matrix, kLow_SkFilterQuality, nullptr)); |
| |
| // Test that saveLayer() with a filter nested inside another saveLayer() applies the |
| // correct offset to the filter matrix. |
| SkRect bounds1 = SkRect::MakeXYWH(10, 10, 30, 30); |
| canvas.saveLayer(&bounds1, nullptr); |
| SkPaint filterPaint; |
| filterPaint.setImageFilter(std::move(matrixFilter)); |
| SkRect bounds2 = SkRect::MakeXYWH(20, 20, 10, 10); |
| canvas.saveLayer(&bounds2, &filterPaint); |
| SkPaint greenPaint; |
| greenPaint.setColor(SK_ColorGREEN); |
| canvas.drawRect(bounds2, greenPaint); |
| canvas.restore(); |
| canvas.restore(); |
| SkPaint strokePaint; |
| strokePaint.setStyle(SkPaint::kStroke_Style); |
| strokePaint.setColor(SK_ColorRED); |
| |
| SkImageInfo info = SkImageInfo::Make(1, 1, kBGRA_8888_SkColorType, kUnpremul_SkAlphaType); |
| uint32_t pixel; |
| temp.readPixels(info, &pixel, 4, 25, 25); |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| |
| // Test that drawSprite() with a filter nested inside a saveLayer() applies the |
| // correct offset to the filter matrix. |
| canvas.clear(0x0); |
| temp.readPixels(info, &pixel, 4, 25, 25); |
| canvas.saveLayer(&bounds1, nullptr); |
| canvas.drawBitmap(bitmap, 20, 20, &filterPaint); // drawSprite |
| canvas.restore(); |
| |
| temp.readPixels(info, &pixel, 4, 25, 25); |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| } |
| |
| DEF_TEST(XfermodeImageFilterCroppedInput, reporter) { |
| test_xfermode_cropped_input(SkSurface::MakeRasterN32Premul(100, 100).get(), reporter); |
| } |
| |
| static void test_composed_imagefilter_offset(skiatest::Reporter* reporter, GrContext* context) { |
| sk_sp<SkSpecialImage> srcImg(create_empty_special_image(context, 100)); |
| |
| SkImageFilter::CropRect cropRect(SkRect::MakeXYWH(1, 0, 20, 20)); |
| sk_sp<SkImageFilter> offsetFilter(SkOffsetImageFilter::Make(0, 0, nullptr, &cropRect)); |
| sk_sp<SkImageFilter> blurFilter(SkBlurImageFilter::Make(SK_Scalar1, SK_Scalar1, |
| nullptr, &cropRect)); |
| sk_sp<SkImageFilter> composedFilter(SkComposeImageFilter::Make(std::move(blurFilter), |
| std::move(offsetFilter))); |
| SkIPoint offset; |
| SkImageFilter::OutputProperties noColorSpace(nullptr); |
| SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeWH(100, 100), nullptr, noColorSpace); |
| |
| sk_sp<SkSpecialImage> resultImg(composedFilter->filterImage(srcImg.get(), ctx, &offset)); |
| REPORTER_ASSERT(reporter, resultImg); |
| REPORTER_ASSERT(reporter, offset.fX == 1 && offset.fY == 0); |
| } |
| |
| DEF_TEST(ComposedImageFilterOffset, reporter) { |
| test_composed_imagefilter_offset(reporter, nullptr); |
| } |
| |
| #if SK_SUPPORT_GPU |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ComposedImageFilterOffset_Gpu, reporter, ctxInfo) { |
| test_composed_imagefilter_offset(reporter, ctxInfo.grContext()); |
| } |
| #endif |
| |
| static void test_composed_imagefilter_bounds(skiatest::Reporter* reporter, GrContext* context) { |
| // The bounds passed to the inner filter must be filtered by the outer |
| // filter, so that the inner filter produces the pixels that the outer |
| // filter requires as input. This matters if the outer filter moves pixels. |
| // Here, accounting for the outer offset is necessary so that the green |
| // pixels of the picture are not clipped. |
| |
| SkPictureRecorder recorder; |
| SkCanvas* recordingCanvas = recorder.beginRecording(SkRect::MakeWH(200, 100)); |
| recordingCanvas->clipRect(SkRect::MakeXYWH(100, 0, 100, 100)); |
| recordingCanvas->clear(SK_ColorGREEN); |
| sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture()); |
| sk_sp<SkImageFilter> pictureFilter(SkPictureImageFilter::Make(picture)); |
| SkImageFilter::CropRect cropRect(SkRect::MakeWH(100, 100)); |
| sk_sp<SkImageFilter> offsetFilter(SkOffsetImageFilter::Make(-100, 0, nullptr, &cropRect)); |
| sk_sp<SkImageFilter> composedFilter(SkComposeImageFilter::Make(std::move(offsetFilter), |
| std::move(pictureFilter))); |
| |
| sk_sp<SkSpecialImage> sourceImage(create_empty_special_image(context, 100)); |
| SkImageFilter::OutputProperties noColorSpace(nullptr); |
| SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeWH(100, 100), nullptr, noColorSpace); |
| SkIPoint offset; |
| sk_sp<SkSpecialImage> result(composedFilter->filterImage(sourceImage.get(), ctx, &offset)); |
| REPORTER_ASSERT(reporter, offset.isZero()); |
| REPORTER_ASSERT(reporter, result); |
| REPORTER_ASSERT(reporter, result->subset().size() == SkISize::Make(100, 100)); |
| |
| SkBitmap resultBM; |
| REPORTER_ASSERT(reporter, result->getROPixels(&resultBM)); |
| REPORTER_ASSERT(reporter, resultBM.getColor(50, 50) == SK_ColorGREEN); |
| } |
| |
| DEF_TEST(ComposedImageFilterBounds, reporter) { |
| test_composed_imagefilter_bounds(reporter, nullptr); |
| } |
| |
| #if SK_SUPPORT_GPU |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ComposedImageFilterBounds_Gpu, reporter, ctxInfo) { |
| test_composed_imagefilter_bounds(reporter, ctxInfo.grContext()); |
| } |
| #endif |
| |
| static void test_partial_crop_rect(skiatest::Reporter* reporter, GrContext* context) { |
| sk_sp<SkSpecialImage> srcImg(create_empty_special_image(context, 100)); |
| |
| SkImageFilter::CropRect cropRect(SkRect::MakeXYWH(100, 0, 20, 30), |
| SkImageFilter::CropRect::kHasWidth_CropEdge | SkImageFilter::CropRect::kHasHeight_CropEdge); |
| sk_sp<SkImageFilter> filter(make_grayscale(nullptr, &cropRect)); |
| SkIPoint offset; |
| SkImageFilter::OutputProperties noColorSpace(nullptr); |
| SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeWH(100, 100), nullptr, noColorSpace); |
| |
| sk_sp<SkSpecialImage> resultImg(filter->filterImage(srcImg.get(), ctx, &offset)); |
| REPORTER_ASSERT(reporter, resultImg); |
| |
| REPORTER_ASSERT(reporter, offset.fX == 0); |
| REPORTER_ASSERT(reporter, offset.fY == 0); |
| REPORTER_ASSERT(reporter, resultImg->width() == 20); |
| REPORTER_ASSERT(reporter, resultImg->height() == 30); |
| } |
| |
| DEF_TEST(ImageFilterPartialCropRect, reporter) { |
| test_partial_crop_rect(reporter, nullptr); |
| } |
| |
| #if SK_SUPPORT_GPU |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterPartialCropRect_Gpu, reporter, ctxInfo) { |
| test_partial_crop_rect(reporter, ctxInfo.grContext()); |
| } |
| #endif |
| |
| DEF_TEST(ImageFilterCanComputeFastBounds, reporter) { |
| |
| { |
| SkPoint3 location = SkPoint3::Make(0, 0, SK_Scalar1); |
| sk_sp<SkImageFilter> lighting(SkLightingImageFilter::MakePointLitDiffuse(location, |
| SK_ColorGREEN, |
| 0, 0, nullptr)); |
| REPORTER_ASSERT(reporter, !lighting->canComputeFastBounds()); |
| } |
| |
| { |
| sk_sp<SkImageFilter> gray(make_grayscale(nullptr, nullptr)); |
| REPORTER_ASSERT(reporter, gray->canComputeFastBounds()); |
| { |
| SkColorFilter* grayCF; |
| REPORTER_ASSERT(reporter, gray->asAColorFilter(&grayCF)); |
| REPORTER_ASSERT(reporter, !grayCF->affectsTransparentBlack()); |
| grayCF->unref(); |
| } |
| REPORTER_ASSERT(reporter, gray->canComputeFastBounds()); |
| |
| sk_sp<SkImageFilter> grayBlur(SkBlurImageFilter::Make(SK_Scalar1, SK_Scalar1, |
| std::move(gray))); |
| REPORTER_ASSERT(reporter, grayBlur->canComputeFastBounds()); |
| } |
| |
| { |
| SkScalar greenMatrix[20] = { 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 1, |
| 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 1 }; |
| sk_sp<SkColorFilter> greenCF(SkColorFilter::MakeMatrixFilterRowMajor255(greenMatrix)); |
| sk_sp<SkImageFilter> green(SkColorFilterImageFilter::Make(greenCF, nullptr)); |
| |
| REPORTER_ASSERT(reporter, greenCF->affectsTransparentBlack()); |
| REPORTER_ASSERT(reporter, !green->canComputeFastBounds()); |
| |
| sk_sp<SkImageFilter> greenBlur(SkBlurImageFilter::Make(SK_Scalar1, SK_Scalar1, |
| std::move(green))); |
| REPORTER_ASSERT(reporter, !greenBlur->canComputeFastBounds()); |
| } |
| |
| uint8_t allOne[256], identity[256]; |
| for (int i = 0; i < 256; ++i) { |
| identity[i] = i; |
| allOne[i] = 255; |
| } |
| |
| sk_sp<SkColorFilter> identityCF(SkTableColorFilter::MakeARGB(identity, identity, |
| identity, allOne)); |
| sk_sp<SkImageFilter> identityFilter(SkColorFilterImageFilter::Make(identityCF, nullptr)); |
| REPORTER_ASSERT(reporter, !identityCF->affectsTransparentBlack()); |
| REPORTER_ASSERT(reporter, identityFilter->canComputeFastBounds()); |
| |
| sk_sp<SkColorFilter> forceOpaqueCF(SkTableColorFilter::MakeARGB(allOne, identity, |
| identity, identity)); |
| sk_sp<SkImageFilter> forceOpaque(SkColorFilterImageFilter::Make(forceOpaqueCF, nullptr)); |
| REPORTER_ASSERT(reporter, forceOpaqueCF->affectsTransparentBlack()); |
| REPORTER_ASSERT(reporter, !forceOpaque->canComputeFastBounds()); |
| } |
| |
| // Verify that SkImageSource survives serialization |
| DEF_TEST(ImageFilterImageSourceSerialization, reporter) { |
| auto surface(SkSurface::MakeRasterN32Premul(10, 10)); |
| surface->getCanvas()->clear(SK_ColorGREEN); |
| sk_sp<SkImage> image(surface->makeImageSnapshot()); |
| sk_sp<SkImageFilter> filter(SkImageSource::Make(std::move(image))); |
| |
| sk_sp<SkData> data(SkValidatingSerializeFlattenable(filter.get())); |
| sk_sp<SkImageFilter> unflattenedFilter = SkValidatingDeserializeImageFilter(data->data(), |
| data->size()); |
| REPORTER_ASSERT(reporter, unflattenedFilter); |
| |
| SkBitmap bm; |
| bm.allocN32Pixels(10, 10); |
| bm.eraseColor(SK_ColorBLUE); |
| SkPaint paint; |
| paint.setColor(SK_ColorRED); |
| paint.setImageFilter(unflattenedFilter); |
| |
| SkCanvas canvas(bm); |
| canvas.drawRect(SkRect::MakeWH(10, 10), paint); |
| REPORTER_ASSERT(reporter, *bm.getAddr32(0, 0) == SkPreMultiplyColor(SK_ColorGREEN)); |
| } |
| |
| DEF_TEST(ImageFilterImageSourceUninitialized, r) { |
| sk_sp<SkData> data(GetResourceAsData("crbug769134.fil")); |
| if (!data) { |
| return; |
| } |
| sk_sp<SkImageFilter> unflattenedFilter = SkValidatingDeserializeImageFilter(data->data(), |
| data->size()); |
| // This will fail. More importantly, msan will verify that we did not |
| // compare against uninitialized memory. |
| REPORTER_ASSERT(r, !unflattenedFilter); |
| } |
| |
| static void test_large_blur_input(skiatest::Reporter* reporter, SkCanvas* canvas) { |
| SkBitmap largeBmp; |
| int largeW = 5000; |
| int largeH = 5000; |
| #if SK_SUPPORT_GPU |
| // If we're GPU-backed make the bitmap too large to be converted into a texture. |
| if (GrContext* ctx = canvas->getGrContext()) { |
| largeW = ctx->caps()->maxTextureSize() + 1; |
| } |
| #endif |
| |
| largeBmp.allocN32Pixels(largeW, largeH); |
| largeBmp.eraseColor(0); |
| if (!largeBmp.getPixels()) { |
| ERRORF(reporter, "Failed to allocate large bmp."); |
| return; |
| } |
| |
| sk_sp<SkImage> largeImage(SkImage::MakeFromBitmap(largeBmp)); |
| if (!largeImage) { |
| ERRORF(reporter, "Failed to create large image."); |
| return; |
| } |
| |
| sk_sp<SkImageFilter> largeSource(SkImageSource::Make(std::move(largeImage))); |
| if (!largeSource) { |
| ERRORF(reporter, "Failed to create large SkImageSource."); |
| return; |
| } |
| |
| sk_sp<SkImageFilter> blur(SkBlurImageFilter::Make(10.f, 10.f, std::move(largeSource))); |
| if (!blur) { |
| ERRORF(reporter, "Failed to create SkBlurImageFilter."); |
| return; |
| } |
| |
| SkPaint paint; |
| paint.setImageFilter(std::move(blur)); |
| |
| // This should not crash (http://crbug.com/570479). |
| canvas->drawRect(SkRect::MakeIWH(largeW, largeH), paint); |
| } |
| |
| DEF_TEST(ImageFilterBlurLargeImage, reporter) { |
| auto surface(SkSurface::MakeRaster(SkImageInfo::MakeN32Premul(100, 100))); |
| test_large_blur_input(reporter, surface->getCanvas()); |
| } |
| |
| static void test_make_with_filter(skiatest::Reporter* reporter, GrContext* context) { |
| sk_sp<SkSurface> surface(create_surface(context, 192, 128)); |
| surface->getCanvas()->clear(SK_ColorRED); |
| SkPaint bluePaint; |
| bluePaint.setColor(SK_ColorBLUE); |
| SkIRect subset = SkIRect::MakeXYWH(25, 20, 50, 50); |
| surface->getCanvas()->drawRect(SkRect::Make(subset), bluePaint); |
| sk_sp<SkImage> sourceImage = surface->makeImageSnapshot(); |
| |
| sk_sp<SkImageFilter> filter = make_grayscale(nullptr, nullptr); |
| SkIRect clipBounds = SkIRect::MakeXYWH(30, 35, 100, 100); |
| SkIRect outSubset; |
| SkIPoint offset; |
| sk_sp<SkImage> result; |
| |
| result = sourceImage->makeWithFilter(nullptr, subset, clipBounds, &outSubset, &offset); |
| REPORTER_ASSERT(reporter, !result); |
| |
| result = sourceImage->makeWithFilter(filter.get(), subset, clipBounds, nullptr, &offset); |
| REPORTER_ASSERT(reporter, !result); |
| |
| result = sourceImage->makeWithFilter(filter.get(), subset, clipBounds, &outSubset, nullptr); |
| REPORTER_ASSERT(reporter, !result); |
| |
| SkIRect bigSubset = SkIRect::MakeXYWH(-10000, -10000, 20000, 20000); |
| result = sourceImage->makeWithFilter(filter.get(), bigSubset, clipBounds, &outSubset, &offset); |
| REPORTER_ASSERT(reporter, !result); |
| |
| SkIRect empty = SkIRect::MakeEmpty(); |
| result = sourceImage->makeWithFilter(filter.get(), empty, clipBounds, &outSubset, &offset); |
| REPORTER_ASSERT(reporter, !result); |
| |
| result = sourceImage->makeWithFilter(filter.get(), subset, empty, &outSubset, &offset); |
| REPORTER_ASSERT(reporter, !result); |
| |
| SkIRect leftField = SkIRect::MakeXYWH(-1000, 0, 100, 100); |
| result = sourceImage->makeWithFilter(filter.get(), subset, leftField, &outSubset, &offset); |
| REPORTER_ASSERT(reporter, !result); |
| |
| result = sourceImage->makeWithFilter(filter.get(), subset, clipBounds, &outSubset, &offset); |
| |
| REPORTER_ASSERT(reporter, result); |
| REPORTER_ASSERT(reporter, result->bounds().contains(outSubset)); |
| SkIRect destRect = SkIRect::MakeXYWH(offset.x(), offset.y(), |
| outSubset.width(), outSubset.height()); |
| REPORTER_ASSERT(reporter, clipBounds.contains(destRect)); |
| |
| // In GPU-mode, this case creates a special image with a backing size that differs from |
| // the content size |
| { |
| clipBounds.setXYWH(0, 0, 170, 100); |
| subset.setXYWH(0, 0, 160, 90); |
| |
| filter = SkXfermodeImageFilter::Make(SkBlendMode::kSrc, nullptr); |
| result = sourceImage->makeWithFilter(filter.get(), subset, clipBounds, &outSubset, &offset); |
| REPORTER_ASSERT(reporter, result); |
| } |
| } |
| |
| DEF_TEST(ImageFilterMakeWithFilter, reporter) { |
| test_make_with_filter(reporter, nullptr); |
| } |
| |
| #if SK_SUPPORT_GPU |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterMakeWithFilter_Gpu, reporter, ctxInfo) { |
| test_make_with_filter(reporter, ctxInfo.grContext()); |
| } |
| #endif |
| |
| #if SK_SUPPORT_GPU |
| |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterHugeBlur_Gpu, reporter, ctxInfo) { |
| |
| sk_sp<SkSurface> surf(SkSurface::MakeRenderTarget(ctxInfo.grContext(), |
| SkBudgeted::kNo, |
| SkImageInfo::MakeN32Premul(100, 100))); |
| |
| |
| SkCanvas* canvas = surf->getCanvas(); |
| |
| test_huge_blur(canvas, reporter); |
| } |
| |
| DEF_GPUTEST_FOR_RENDERING_CONTEXTS(XfermodeImageFilterCroppedInput_Gpu, reporter, ctxInfo) { |
| sk_sp<SkSurface> surf(SkSurface::MakeRenderTarget( |
| ctxInfo.grContext(), |
| SkBudgeted::kNo, |
| SkImageInfo::Make(1, 1, kRGBA_8888_SkColorType, kPremul_SkAlphaType))); |
| |
| test_xfermode_cropped_input(surf.get(), reporter); |
| } |
| |
| DEF_GPUTEST_FOR_ALL_CONTEXTS(ImageFilterBlurLargeImage_Gpu, reporter, ctxInfo) { |
| auto surface(SkSurface::MakeRenderTarget( |
| ctxInfo.grContext(), SkBudgeted::kYes, |
| SkImageInfo::Make(100, 100, kRGBA_8888_SkColorType, kPremul_SkAlphaType))); |
| test_large_blur_input(reporter, surface->getCanvas()); |
| } |
| #endif |
| |
| /* |
| * Test that colorfilterimagefilter does not require its CTM to be decomposed when it has more |
| * than just scale/translate, but that other filters do. |
| */ |
| DEF_TEST(ImageFilterComplexCTM, reporter) { |
| // just need a colorfilter to exercise the corresponding imagefilter |
| sk_sp<SkColorFilter> cf = SkColorFilter::MakeModeFilter(SK_ColorRED, SkBlendMode::kSrcATop); |
| sk_sp<SkImageFilter> cfif = SkColorFilterImageFilter::Make(cf, nullptr); // can handle |
| sk_sp<SkImageFilter> blif = SkBlurImageFilter::Make(3, 3, nullptr); // cannot handle |
| |
| struct { |
| sk_sp<SkImageFilter> fFilter; |
| bool fExpectCanHandle; |
| } recs[] = { |
| { cfif, true }, |
| { SkColorFilterImageFilter::Make(cf, cfif), true }, |
| { SkMergeImageFilter::Make(cfif, cfif), true }, |
| { SkComposeImageFilter::Make(cfif, cfif), true }, |
| |
| { blif, false }, |
| { SkBlurImageFilter::Make(3, 3, cfif), false }, |
| { SkColorFilterImageFilter::Make(cf, blif), false }, |
| { SkMergeImageFilter::Make(cfif, blif), false }, |
| { SkComposeImageFilter::Make(blif, cfif), false }, |
| }; |
| |
| for (const auto& rec : recs) { |
| const bool canHandle = rec.fFilter->canHandleComplexCTM(); |
| REPORTER_ASSERT(reporter, canHandle == rec.fExpectCanHandle); |
| } |
| } |
| |
| // Test that transforming the filter DAG doesn't clone shared nodes multiple times. |
| DEF_TEST(ImageFilterColorSpaceDAG, reporter) { |
| |
| // Helper for counting makeColorSpace() clones. |
| class TestFilter final : public SkImageFilter { |
| public: |
| TestFilter() : INHERITED(nullptr, 0, nullptr) {} |
| |
| #ifndef SK_IGNORE_TO_STRING |
| void toString(SkString*) const override {} |
| #endif |
| Factory getFactory() const override { return nullptr; } |
| |
| size_t cloneCount() const { return fCloneCount; } |
| |
| protected: |
| sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* src, const Context&, |
| SkIPoint* offset) const override { |
| return nullptr; |
| } |
| sk_sp<SkImageFilter> onMakeColorSpace(SkColorSpaceXformer*) const override { |
| fCloneCount++; |
| return sk_ref_sp(const_cast<TestFilter*>(this)); |
| } |
| |
| private: |
| typedef SkImageFilter INHERITED; |
| |
| mutable size_t fCloneCount = 0; |
| }; |
| |
| auto filter = sk_make_sp<TestFilter>(); |
| REPORTER_ASSERT(reporter, filter->cloneCount() == 0u); |
| |
| // Build a DAG referencing the filter twice. |
| auto complexFilter = SkMergeImageFilter::Make(filter, SkOffsetImageFilter::Make(1, 1, filter)); |
| REPORTER_ASSERT(reporter, filter->cloneCount() == 0u); |
| |
| auto xformer = SkColorSpaceXformer::Make(SkColorSpace::MakeSRGB()); |
| auto xformedFilter = xformer->apply(complexFilter.get()); |
| |
| REPORTER_ASSERT(reporter, filter->cloneCount() == 1u); |
| } |
| |
| // Test SkXfermodeImageFilter::filterBounds with different blending modes. |
| DEF_TEST(XfermodeImageFilterBounds, reporter) { |
| SkIRect background_rect = SkIRect::MakeXYWH(0, 0, 100, 100); |
| SkIRect foreground_rect = SkIRect::MakeXYWH(50, 50, 100, 100); |
| sk_sp<SkImageFilter> background(new FixedBoundsImageFilter(background_rect)); |
| sk_sp<SkImageFilter> foreground(new FixedBoundsImageFilter(foreground_rect)); |
| |
| const int kModeCount = static_cast<int>(SkBlendMode::kLastMode) + 1; |
| SkIRect expectedBounds[kModeCount]; |
| // Expect union of input rects by default. |
| for (int i = 0; i < kModeCount; ++i) { |
| expectedBounds[i] = background_rect; |
| expectedBounds[i].join(foreground_rect); |
| } |
| |
| SkIRect intersection = background_rect; |
| intersection.intersect(foreground_rect); |
| expectedBounds[static_cast<int>(SkBlendMode::kClear)] = SkIRect::MakeEmpty(); |
| expectedBounds[static_cast<int>(SkBlendMode::kSrc)] = foreground_rect; |
| expectedBounds[static_cast<int>(SkBlendMode::kDst)] = background_rect; |
| expectedBounds[static_cast<int>(SkBlendMode::kSrcIn)] = intersection; |
| expectedBounds[static_cast<int>(SkBlendMode::kDstIn)] = intersection; |
| expectedBounds[static_cast<int>(SkBlendMode::kSrcATop)] = background_rect; |
| expectedBounds[static_cast<int>(SkBlendMode::kDstATop)] = foreground_rect; |
| |
| // The value of this variable doesn't matter because we use inputs with fixed bounds. |
| SkIRect src = SkIRect::MakeXYWH(11, 22, 33, 44); |
| for (int i = 0; i < kModeCount; ++i) { |
| sk_sp<SkImageFilter> xfermode(SkXfermodeImageFilter::Make(static_cast<SkBlendMode>(i), |
| background, foreground, nullptr)); |
| auto bounds = |
| xfermode->filterBounds(src, SkMatrix::I(), SkImageFilter::kForward_MapDirection); |
| REPORTER_ASSERT(reporter, bounds == expectedBounds[i]); |
| } |
| |
| // Test empty intersection. |
| sk_sp<SkImageFilter> background2(new FixedBoundsImageFilter(SkIRect::MakeXYWH(0, 0, 20, 20))); |
| sk_sp<SkImageFilter> foreground2(new FixedBoundsImageFilter(SkIRect::MakeXYWH(40, 40, 50, 50))); |
| sk_sp<SkImageFilter> xfermode(SkXfermodeImageFilter::Make( |
| SkBlendMode::kSrcIn, std::move(background2), std::move(foreground2), nullptr)); |
| auto bounds = xfermode->filterBounds(src, SkMatrix::I(), SkImageFilter::kForward_MapDirection); |
| REPORTER_ASSERT(reporter, bounds.isEmpty()); |
| } |
| |
| static void test_arithmetic_bounds(skiatest::Reporter* reporter, float k1, float k2, float k3, |
| float k4, sk_sp<SkImageFilter> background, |
| sk_sp<SkImageFilter> foreground, |
| const SkImageFilter::CropRect* crop, const SkIRect& expected) { |
| sk_sp<SkImageFilter> arithmetic( |
| SkArithmeticImageFilter::Make(k1, k2, k3, k4, false, background, foreground, crop)); |
| // The value of the input rect doesn't matter because we use inputs with fixed bounds. |
| SkIRect bounds = arithmetic->filterBounds(SkIRect::MakeXYWH(11, 22, 33, 44), SkMatrix::I(), |
| SkImageFilter::kForward_MapDirection); |
| REPORTER_ASSERT(reporter, expected == bounds); |
| } |
| |
| static void test_arithmetic_combinations(skiatest::Reporter* reporter, float v) { |
| SkIRect background_rect = SkIRect::MakeXYWH(0, 0, 100, 100); |
| SkIRect foreground_rect = SkIRect::MakeXYWH(50, 50, 100, 100); |
| sk_sp<SkImageFilter> background(new FixedBoundsImageFilter(background_rect)); |
| sk_sp<SkImageFilter> foreground(new FixedBoundsImageFilter(foreground_rect)); |
| |
| SkIRect union_rect = background_rect; |
| union_rect.join(foreground_rect); |
| SkIRect intersection = background_rect; |
| intersection.intersect(foreground_rect); |
| |
| test_arithmetic_bounds(reporter, 0, 0, 0, 0, background, foreground, nullptr, |
| SkIRect::MakeEmpty()); |
| test_arithmetic_bounds(reporter, 0, 0, 0, v, background, foreground, nullptr, union_rect); |
| test_arithmetic_bounds(reporter, 0, 0, v, 0, background, foreground, nullptr, background_rect); |
| test_arithmetic_bounds(reporter, 0, 0, v, v, background, foreground, nullptr, union_rect); |
| test_arithmetic_bounds(reporter, 0, v, 0, 0, background, foreground, nullptr, foreground_rect); |
| test_arithmetic_bounds(reporter, 0, v, 0, v, background, foreground, nullptr, union_rect); |
| test_arithmetic_bounds(reporter, 0, v, v, 0, background, foreground, nullptr, union_rect); |
| test_arithmetic_bounds(reporter, 0, v, v, v, background, foreground, nullptr, union_rect); |
| test_arithmetic_bounds(reporter, v, 0, 0, 0, background, foreground, nullptr, intersection); |
| test_arithmetic_bounds(reporter, v, 0, 0, v, background, foreground, nullptr, union_rect); |
| test_arithmetic_bounds(reporter, v, 0, v, 0, background, foreground, nullptr, background_rect); |
| test_arithmetic_bounds(reporter, v, 0, v, v, background, foreground, nullptr, union_rect); |
| test_arithmetic_bounds(reporter, v, v, 0, 0, background, foreground, nullptr, foreground_rect); |
| test_arithmetic_bounds(reporter, v, v, 0, v, background, foreground, nullptr, union_rect); |
| test_arithmetic_bounds(reporter, v, v, v, 0, background, foreground, nullptr, union_rect); |
| test_arithmetic_bounds(reporter, v, v, v, v, background, foreground, nullptr, union_rect); |
| |
| // Test with crop. When k4 is non-zero, the result is expected to be crop_rect |
| // regardless of inputs because the filter affects the whole crop area. |
| SkIRect crop_rect = SkIRect::MakeXYWH(-111, -222, 333, 444); |
| SkImageFilter::CropRect crop(SkRect::Make(crop_rect)); |
| test_arithmetic_bounds(reporter, 0, 0, 0, 0, background, foreground, &crop, |
| SkIRect::MakeEmpty()); |
| test_arithmetic_bounds(reporter, 0, 0, 0, v, background, foreground, &crop, crop_rect); |
| test_arithmetic_bounds(reporter, 0, 0, v, 0, background, foreground, &crop, background_rect); |
| test_arithmetic_bounds(reporter, 0, 0, v, v, background, foreground, &crop, crop_rect); |
| test_arithmetic_bounds(reporter, 0, v, 0, 0, background, foreground, &crop, foreground_rect); |
| test_arithmetic_bounds(reporter, 0, v, 0, v, background, foreground, &crop, crop_rect); |
| test_arithmetic_bounds(reporter, 0, v, v, 0, background, foreground, &crop, union_rect); |
| test_arithmetic_bounds(reporter, 0, v, v, v, background, foreground, &crop, crop_rect); |
| test_arithmetic_bounds(reporter, v, 0, 0, 0, background, foreground, &crop, intersection); |
| test_arithmetic_bounds(reporter, v, 0, 0, v, background, foreground, &crop, crop_rect); |
| test_arithmetic_bounds(reporter, v, 0, v, 0, background, foreground, &crop, background_rect); |
| test_arithmetic_bounds(reporter, v, 0, v, v, background, foreground, &crop, crop_rect); |
| test_arithmetic_bounds(reporter, v, v, 0, 0, background, foreground, &crop, foreground_rect); |
| test_arithmetic_bounds(reporter, v, v, 0, v, background, foreground, &crop, crop_rect); |
| test_arithmetic_bounds(reporter, v, v, v, 0, background, foreground, &crop, union_rect); |
| test_arithmetic_bounds(reporter, v, v, v, v, background, foreground, &crop, crop_rect); |
| } |
| |
| // Test SkArithmeticImageFilter::filterBounds with different blending modes. |
| DEF_TEST(ArithmeticImageFilterBounds, reporter) { |
| test_arithmetic_combinations(reporter, 1); |
| test_arithmetic_combinations(reporter, 0.5); |
| } |
| |
| // Test SkImageSource::filterBounds. |
| DEF_TEST(ImageSourceBounds, reporter) { |
| sk_sp<SkImage> image(SkImage::MakeFromBitmap(make_gradient_circle(64, 64))); |
| // Default src and dst rects. |
| sk_sp<SkImageFilter> source1(SkImageSource::Make(image)); |
| SkIRect imageBounds = SkIRect::MakeWH(64, 64); |
| SkIRect input(SkIRect::MakeXYWH(10, 20, 30, 40)); |
| REPORTER_ASSERT(reporter, |
| imageBounds == source1->filterBounds(input, SkMatrix::I(), |
| SkImageFilter::kForward_MapDirection)); |
| REPORTER_ASSERT(reporter, |
| input == source1->filterBounds(input, SkMatrix::I(), |
| SkImageFilter::kReverse_MapDirection)); |
| SkMatrix scale(SkMatrix::MakeScale(2)); |
| SkIRect scaledBounds = SkIRect::MakeWH(128, 128); |
| REPORTER_ASSERT(reporter, |
| scaledBounds == source1->filterBounds(input, scale, |
| SkImageFilter::kForward_MapDirection)); |
| REPORTER_ASSERT( |
| reporter, |
| input == source1->filterBounds(input, scale, SkImageFilter::kReverse_MapDirection)); |
| |
| // Specified src and dst rects. |
| SkRect src(SkRect::MakeXYWH(0.5, 0.5, 100.5, 100.5)); |
| SkRect dst(SkRect::MakeXYWH(-10.5, -10.5, 120.5, 120.5)); |
| sk_sp<SkImageFilter> source2(SkImageSource::Make(image, src, dst, kMedium_SkFilterQuality)); |
| REPORTER_ASSERT(reporter, |
| dst.roundOut() == source2->filterBounds(input, SkMatrix::I(), |
| SkImageFilter::kForward_MapDirection)); |
| REPORTER_ASSERT(reporter, |
| input == source2->filterBounds(input, SkMatrix::I(), |
| SkImageFilter::kReverse_MapDirection)); |
| scale.mapRect(&dst); |
| scale.mapRect(&src); |
| REPORTER_ASSERT(reporter, |
| dst.roundOut() == source2->filterBounds(input, scale, |
| SkImageFilter::kForward_MapDirection)); |
| REPORTER_ASSERT( |
| reporter, |
| input == source2->filterBounds(input, scale, SkImageFilter::kReverse_MapDirection)); |
| } |