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- /*
- * 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 "include/core/SkBitmap.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkImage.h"
- #include "include/core/SkPicture.h"
- #include "include/core/SkPictureRecorder.h"
- #include "include/core/SkPoint3.h"
- #include "include/core/SkRect.h"
- #include "include/core/SkSurface.h"
- #include "include/effects/SkArithmeticImageFilter.h"
- #include "include/effects/SkBlurImageFilter.h"
- #include "include/effects/SkColorFilterImageFilter.h"
- #include "include/effects/SkColorMatrixFilter.h"
- #include "include/effects/SkComposeImageFilter.h"
- #include "include/effects/SkDisplacementMapEffect.h"
- #include "include/effects/SkDropShadowImageFilter.h"
- #include "include/effects/SkGradientShader.h"
- #include "include/effects/SkImageSource.h"
- #include "include/effects/SkLightingImageFilter.h"
- #include "include/effects/SkMatrixConvolutionImageFilter.h"
- #include "include/effects/SkMergeImageFilter.h"
- #include "include/effects/SkMorphologyImageFilter.h"
- #include "include/effects/SkOffsetImageFilter.h"
- #include "include/effects/SkPaintImageFilter.h"
- #include "include/effects/SkPerlinNoiseShader.h"
- #include "include/effects/SkPictureImageFilter.h"
- #include "include/effects/SkTableColorFilter.h"
- #include "include/effects/SkTileImageFilter.h"
- #include "include/effects/SkXfermodeImageFilter.h"
- #include "src/core/SkImageFilterPriv.h"
- #include "src/core/SkReadBuffer.h"
- #include "src/core/SkSpecialImage.h"
- #include "src/core/SkSpecialSurface.h"
- #include "tests/Test.h"
- #include "tools/Resources.h"
- #include "tools/ToolUtils.h"
- #include "include/gpu/GrContext.h"
- #include "src/gpu/GrCaps.h"
- #include "src/gpu/GrContextPriv.h"
- 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));
- }
- 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);
- }
- void flatten(SkWriteBuffer& buffer) const override {
- SkDEBUGFAIL("Should never get here");
- }
- private:
- SK_FLATTENABLE_HOOKS(MatrixTestImageFilter)
- 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_FLATTENABLE_HOOKS(FailImageFilter)
- private:
- typedef SkImageFilter INHERITED;
- };
- sk_sp<SkFlattenable> FailImageFilter::CreateProc(SkReadBuffer& buffer) {
- SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 0);
- return sk_sp<SkFlattenable>(new FailImageFilter());
- }
- 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,
- SkTileMode::kClamp)
- );
- 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(SkColorFilters::Blend(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 filter needs a saveLayer bc it is in repeat mode
- this->addFilter("matrix convolution",
- SkMatrixConvolutionImageFilter::Make(
- kernelSize, kernel, gain, bias, SkIPoint::Make(1, 1),
- SkMatrixConvolutionImageFilter::kRepeat_TileMode, false,
- input, cropRect),
- true);
- }
- this->addFilter("merge", SkMergeImageFilter::Make(input, input, cropRect));
- {
- SkPaint greenColorShaderPaint;
- greenColorShaderPaint.setShader(SkShaders::Color(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; }
- bool needsSaveLayer(int index) const { return fFilters[index].fNeedsSaveLayer; }
- private:
- struct Filter {
- Filter() : fName(nullptr), fNeedsSaveLayer(false) {}
- Filter(const char* name, sk_sp<SkImageFilter> filter, bool needsSaveLayer)
- : fName(name)
- , fFilter(std::move(filter))
- , fNeedsSaveLayer(needsSaveLayer) {
- }
- const char* fName;
- sk_sp<SkImageFilter> fFilter;
- bool fNeedsSaveLayer;
- };
- void addFilter(const char* name, sk_sp<SkImageFilter> filter, bool needsSaveLayer = false) {
- fFilters.push_back(Filter(name, std::move(filter), needsSaveLayer));
- }
- SkTArray<Filter> fFilters;
- };
- class FixedBoundsImageFilter : public SkImageFilter {
- public:
- FixedBoundsImageFilter(const SkIRect& bounds)
- : SkImageFilter(nullptr, 0, nullptr), fBounds(bounds) {}
- private:
- Factory getFactory() const override { return nullptr; }
- const char* getTypeName() const override { return nullptr; }
- sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* src, const Context&,
- SkIPoint* offset) const override {
- return nullptr;
- }
- SkIRect onFilterBounds(const SkIRect&, const SkMatrix&,
- MapDirection, const SkIRect*) const override {
- return fBounds;
- }
- SkIRect fBounds;
- };
- }
- sk_sp<SkFlattenable> MatrixTestImageFilter::CreateProc(SkReadBuffer& buffer) {
- SkDEBUGFAIL("Should never get here");
- return nullptr;
- }
- 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) {
- float s = amount;
- float 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(SkColorFilters::Matrix(matrix));
- return SkColorFilterImageFilter::Make(std::move(filter), std::move(input));
- }
- static sk_sp<SkImageFilter> make_grayscale(sk_sp<SkImageFilter> input,
- const SkImageFilter::CropRect* cropRect) {
- float matrix[20];
- memset(matrix, 0, 20 * sizeof(float));
- 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(SkColorFilters::Matrix(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(SkColorFilters::Blend(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 (context) {
- return SkSpecialSurface::MakeRenderTarget(context, widthHeight, widthHeight,
- GrColorType::kRGBA_8888, nullptr);
- } else {
- 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 (context) {
- return SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, info);
- } else {
- 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 a color matrix filter followed by a color matrix filter
- // concatenates into a single filter.
- 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));
- 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.
- float blueToRedMatrix[20] = { 0 };
- blueToRedMatrix[2] = blueToRedMatrix[18] = 1;
- float redToGreenMatrix[20] = { 0 };
- redToGreenMatrix[5] = redToGreenMatrix[18] = 1;
- sk_sp<SkColorFilter> blueToRed(SkColorFilters::Matrix(blueToRedMatrix));
- sk_sp<SkImageFilter> filter1(SkColorFilterImageFilter::Make(std::move(blueToRed),
- nullptr));
- sk_sp<SkColorFilter> redToGreen(SkColorFilters::Matrix(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(kN32_SkColorType, 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, filters.getName(i));
- REPORTER_ASSERT(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(kN32_SkColorType, 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);
- }
- DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterNegativeBlurSigma_Gpu, reporter, ctxInfo) {
- test_negative_blur_sigma(reporter, ctxInfo.grContext());
- }
- 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(kN32_SkColorType, 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);
- }
- DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterZeroBlurSigma_Gpu, reporter, ctxInfo) {
- test_zero_blur_sigma(reporter, ctxInfo.grContext());
- }
- // 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(kN32_SkColorType, nullptr);
- SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeXYWH(0, 0, 1, 1), nullptr, noColorSpace);
- sk_sp<SkColorFilter> green(SkColorFilters::Blend(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);
- }
- DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterFailAffectsTransparentBlack_Gpu, reporter, ctxInfo) {
- test_fail_affects_transparent_black(reporter, ctxInfo.grContext());
- }
- 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);
- const int tileSize = 8;
- SkPaint textPaint;
- textPaint.setColor(SK_ColorWHITE);
- SkFont font(ToolUtils::create_portable_typeface(), height);
- const char* text = "ABC";
- const SkScalar yPos = SkIntToScalar(height);
- for (int scale = 1; scale <= 2; ++scale) {
- for (int i = 0; i < filters.count(); ++i) {
- SkPaint combinedPaint;
- combinedPaint.setColor(SK_ColorWHITE);
- combinedPaint.setImageFilter(sk_ref_sp(filters.getFilter(i)));
- untiledCanvas.clear(SK_ColorTRANSPARENT);
- untiledCanvas.save();
- untiledCanvas.scale(SkIntToScalar(scale), SkIntToScalar(scale));
- untiledCanvas.drawString(text, 0, yPos, font, combinedPaint);
- untiledCanvas.restore();
- tiledCanvas.clear(SK_ColorTRANSPARENT);
- for (int y = 0; y < height; y += tileSize) {
- for (int x = 0; x < width; x += tileSize) {
- tiledCanvas.save();
- const SkRect clipRect = SkRect::MakeXYWH(x, y, tileSize, tileSize);
- tiledCanvas.clipRect(clipRect);
- if (filters.needsSaveLayer(i)) {
- const SkRect layerBounds = SkRect::MakeWH(width, height);
- tiledCanvas.saveLayer(&layerBounds, &combinedPaint);
- tiledCanvas.scale(SkIntToScalar(scale), SkIntToScalar(scale));
- tiledCanvas.drawString(text, 0, yPos, font, textPaint);
- tiledCanvas.restore();
- } else {
- tiledCanvas.scale(SkIntToScalar(scale), SkIntToScalar(scale));
- tiledCanvas.drawString(text, 0, yPos, font, combinedPaint);
- }
- tiledCanvas.restore();
- }
- }
- if (!ToolUtils::equal_pixels(untiledResult, tiledResult)) {
- REPORTER_ASSERT(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(SkColorFilters::Blend(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;
- }
- }
- }
- 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(),
- SkImageFilter::kReverse_MapDirection, &bounds);
- 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(),
- SkImageFilter::kReverse_MapDirection, &bounds);
- 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(),
- SkImageFilter::kReverse_MapDirection, &bounds);
- 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, nullptr);
- REPORTER_ASSERT(reporter, blurBounds == expectedBlurBounds);
- SkIRect reverseBlurBounds = blur->filterBounds(
- bounds, scaleMatrix, SkImageFilter::kReverse_MapDirection, &bounds);
- REPORTER_ASSERT(reporter, reverseBlurBounds == expectedBlurBounds);
- SkIRect expectedShadowBounds = SkIRect::MakeLTRB(0, 0, 460, 460);
- SkIRect shadowBounds = dropShadow->filterBounds(
- bounds, scaleMatrix, SkImageFilter::kForward_MapDirection, nullptr);
- REPORTER_ASSERT(reporter, shadowBounds == expectedShadowBounds);
- SkIRect expectedReverseShadowBounds =
- SkIRect::MakeLTRB(-260, -260, 200, 200);
- SkIRect reverseShadowBounds = dropShadow->filterBounds(
- bounds, scaleMatrix, SkImageFilter::kReverse_MapDirection, &bounds);
- 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, nullptr);
- REPORTER_ASSERT(reporter, blurBounds == expectedBlurBounds);
- SkIRect reverseBlurBounds = blur->filterBounds(
- bounds, scaleMatrix, SkImageFilter::kReverse_MapDirection, &bounds);
- REPORTER_ASSERT(reporter, reverseBlurBounds == expectedBlurBounds);
- SkIRect expectedShadowBounds = SkIRect::MakeLTRB(0, -230, 230, 0);
- SkIRect shadowBounds = dropShadow->filterBounds(
- bounds, scaleMatrix, SkImageFilter::kForward_MapDirection, nullptr);
- REPORTER_ASSERT(reporter, shadowBounds == expectedShadowBounds);
- SkIRect expectedReverseShadowBounds =
- SkIRect::MakeLTRB(-130, -100, 100, 130);
- SkIRect reverseShadowBounds = dropShadow->filterBounds(
- bounds, scaleMatrix, SkImageFilter::kReverse_MapDirection, &bounds);
- 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);
- }
- 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(kN32_SkColorType, 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);
- }
- DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterMergeResultSize_Gpu, reporter, ctxInfo) {
- test_imagefilter_merge_result_size(reporter, ctxInfo.grContext());
- }
- 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(kN32_SkColorType, 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);
- }
- DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterMatrixConvolutionBigKernel_Gpu,
- reporter, ctxInfo) {
- test_big_kernel(reporter, ctxInfo.grContext());
- }
- DEF_TEST(ImageFilterCropRect, reporter) {
- test_crop_rects(reporter, nullptr);
- }
- DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterCropRect_Gpu, reporter, ctxInfo) {
- test_crop_rects(reporter, ctxInfo.grContext());
- }
- 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());
- }
- 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(kN32_SkColorType, 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);
- }
- DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterClippedPictureImageFilter_Gpu, reporter, ctxInfo) {
- test_clipped_picture_imagefilter(reporter, ctxInfo.grContext());
- }
- 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(SkColorFilters::Blend(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(SkColorFilters::Blend(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(kN32_SkColorType, 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);
- }
- DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ComposedImageFilterOffset_Gpu, reporter, ctxInfo) {
- test_composed_imagefilter_offset(reporter, ctxInfo.grContext());
- }
- 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(kN32_SkColorType, 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);
- }
- DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ComposedImageFilterBounds_Gpu, reporter, ctxInfo) {
- test_composed_imagefilter_bounds(reporter, ctxInfo.grContext());
- }
- 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(kN32_SkColorType, 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);
- }
- DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterPartialCropRect_Gpu, reporter, ctxInfo) {
- test_partial_crop_rect(reporter, ctxInfo.grContext());
- }
- 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());
- }
- {
- float greenMatrix[20] = { 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 1.0f/255,
- 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 1.0f/255
- };
- sk_sp<SkColorFilter> greenCF(SkColorFilters::Matrix(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(filter->serialize());
- sk_sp<SkImageFilter> unflattenedFilter = SkImageFilter::Deserialize(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 = SkImageFilter::Deserialize(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 we're GPU-backed make the bitmap too large to be converted into a texture.
- if (GrContext* ctx = canvas->getGrContext()) {
- largeW = ctx->priv().caps()->maxTextureSize() + 1;
- }
- 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);
- }
- DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ImageFilterMakeWithFilter_Gpu, reporter, ctxInfo) {
- test_make_with_filter(reporter, ctxInfo.grContext());
- }
- 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());
- }
- /*
- * 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 = SkColorFilters::Blend(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 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, nullptr);
- 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, nullptr);
- REPORTER_ASSERT(reporter, bounds.isEmpty());
- }
- DEF_TEST(OffsetImageFilterBounds, reporter) {
- SkIRect src = SkIRect::MakeXYWH(0, 0, 100, 100);
- sk_sp<SkImageFilter> offset(SkOffsetImageFilter::Make(-50.5f, -50.5f, nullptr));
- SkIRect expectedForward = SkIRect::MakeXYWH(-50, -50, 100, 100);
- SkIRect boundsForward = offset->filterBounds(src, SkMatrix::I(),
- SkImageFilter::kForward_MapDirection, nullptr);
- REPORTER_ASSERT(reporter, boundsForward == expectedForward);
- SkIRect expectedReverse = SkIRect::MakeXYWH(50, 50, 100, 100);
- SkIRect boundsReverse = offset->filterBounds(src, SkMatrix::I(),
- SkImageFilter::kReverse_MapDirection, &src);
- REPORTER_ASSERT(reporter, boundsReverse == expectedReverse);
- }
- 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, nullptr);
- 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,
- nullptr));
- REPORTER_ASSERT(reporter,
- input == source1->filterBounds(input, SkMatrix::I(),
- SkImageFilter::kReverse_MapDirection, &input));
- SkMatrix scale(SkMatrix::MakeScale(2));
- SkIRect scaledBounds = SkIRect::MakeWH(128, 128);
- REPORTER_ASSERT(reporter,
- scaledBounds == source1->filterBounds(input, scale,
- SkImageFilter::kForward_MapDirection,
- nullptr));
- REPORTER_ASSERT(reporter, input == source1->filterBounds(input, scale,
- SkImageFilter::kReverse_MapDirection,
- &input));
- // 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,
- nullptr));
- REPORTER_ASSERT(reporter,
- input == source2->filterBounds(input, SkMatrix::I(),
- SkImageFilter::kReverse_MapDirection, &input));
- scale.mapRect(&dst);
- scale.mapRect(&src);
- REPORTER_ASSERT(reporter,
- dst.roundOut() == source2->filterBounds(input, scale,
- SkImageFilter::kForward_MapDirection,
- nullptr));
- REPORTER_ASSERT(reporter, input == source2->filterBounds(input, scale,
- SkImageFilter::kReverse_MapDirection,
- &input));
- }
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