| /* |
| * 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 "SkBicubicImageFilter.h" |
| #include "SkBitmap.h" |
| #include "SkBitmapDevice.h" |
| #include "SkBitmapSource.h" |
| #include "SkBlurImageFilter.h" |
| #include "SkCanvas.h" |
| #include "SkColorFilterImageFilter.h" |
| #include "SkColorMatrixFilter.h" |
| #include "SkDeviceImageFilterProxy.h" |
| #include "SkDisplacementMapEffect.h" |
| #include "SkDropShadowImageFilter.h" |
| #include "SkFlattenableBuffers.h" |
| #include "SkFlattenableSerialization.h" |
| #include "SkGradientShader.h" |
| #include "SkLightingImageFilter.h" |
| #include "SkMatrixConvolutionImageFilter.h" |
| #include "SkMatrixImageFilter.h" |
| #include "SkMergeImageFilter.h" |
| #include "SkMorphologyImageFilter.h" |
| #include "SkOffsetImageFilter.h" |
| #include "SkPicture.h" |
| #include "SkPictureImageFilter.h" |
| #include "SkPictureRecorder.h" |
| #include "SkRect.h" |
| #include "SkTileImageFilter.h" |
| #include "SkXfermodeImageFilter.h" |
| #include "Test.h" |
| |
| #if SK_SUPPORT_GPU |
| #include "GrContextFactory.h" |
| #include "SkGpuDevice.h" |
| #endif |
| |
| static const int kBitmapSize = 4; |
| |
| namespace { |
| |
| class MatrixTestImageFilter : public SkImageFilter { |
| public: |
| MatrixTestImageFilter(skiatest::Reporter* reporter, const SkMatrix& expectedMatrix) |
| : SkImageFilter(0), fReporter(reporter), fExpectedMatrix(expectedMatrix) { |
| } |
| |
| virtual bool onFilterImage(Proxy*, const SkBitmap& src, const Context& ctx, |
| SkBitmap* result, SkIPoint* offset) const SK_OVERRIDE { |
| REPORTER_ASSERT(fReporter, ctx.ctm() == fExpectedMatrix); |
| return true; |
| } |
| |
| SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(MatrixTestImageFilter) |
| |
| protected: |
| explicit MatrixTestImageFilter(SkReadBuffer& buffer) : SkImageFilter(0) { |
| fReporter = static_cast<skiatest::Reporter*>(buffer.readFunctionPtr()); |
| buffer.readMatrix(&fExpectedMatrix); |
| } |
| |
| virtual void flatten(SkWriteBuffer& buffer) const SK_OVERRIDE { |
| buffer.writeFunctionPtr(fReporter); |
| buffer.writeMatrix(fExpectedMatrix); |
| } |
| |
| private: |
| skiatest::Reporter* fReporter; |
| SkMatrix fExpectedMatrix; |
| }; |
| |
| } |
| |
| static void make_small_bitmap(SkBitmap& bitmap) { |
| bitmap.allocN32Pixels(kBitmapSize, kBitmapSize); |
| SkCanvas canvas(bitmap); |
| 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(); |
| } |
| } |
| } |
| |
| static SkImageFilter* make_scale(float amount, SkImageFilter* input = NULL) { |
| 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 }; |
| SkAutoTUnref<SkColorFilter> filter(SkColorMatrixFilter::Create(matrix)); |
| return SkColorFilterImageFilter::Create(filter, input); |
| } |
| |
| static SkImageFilter* make_grayscale(SkImageFilter* input = NULL, const SkImageFilter::CropRect* cropRect = NULL) { |
| 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; |
| SkAutoTUnref<SkColorFilter> filter(SkColorMatrixFilter::Create(matrix)); |
| return SkColorFilterImageFilter::Create(filter, input, cropRect); |
| } |
| |
| DEF_TEST(ImageFilter, reporter) { |
| { |
| // Check that two non-clipping color matrices concatenate into a single filter. |
| SkAutoTUnref<SkImageFilter> halfBrightness(make_scale(0.5f)); |
| SkAutoTUnref<SkImageFilter> quarterBrightness(make_scale(0.5f, halfBrightness)); |
| REPORTER_ASSERT(reporter, NULL == quarterBrightness->getInput(0)); |
| } |
| |
| { |
| // Check that a clipping color matrix followed by a grayscale does not concatenate into a single filter. |
| SkAutoTUnref<SkImageFilter> doubleBrightness(make_scale(2.0f)); |
| SkAutoTUnref<SkImageFilter> halfBrightness(make_scale(0.5f, doubleBrightness)); |
| REPORTER_ASSERT(reporter, NULL != halfBrightness->getInput(0)); |
| } |
| |
| { |
| // Check that a color filter image filter without a crop rect can be |
| // expressed as a color filter. |
| SkAutoTUnref<SkImageFilter> gray(make_grayscale()); |
| REPORTER_ASSERT(reporter, true == gray->asColorFilter(NULL)); |
| } |
| |
| { |
| // 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)); |
| SkAutoTUnref<SkImageFilter> grayWithCrop(make_grayscale(NULL, &cropRect)); |
| REPORTER_ASSERT(reporter, false == grayWithCrop->asColorFilter(NULL)); |
| } |
| |
| { |
| // 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; |
| SkAutoTUnref<SkColorFilter> blueToRed(SkColorMatrixFilter::Create(blueToRedMatrix)); |
| SkAutoTUnref<SkImageFilter> filter1(SkColorFilterImageFilter::Create(blueToRed.get())); |
| SkAutoTUnref<SkColorFilter> redToGreen(SkColorMatrixFilter::Create(redToGreenMatrix)); |
| SkAutoTUnref<SkImageFilter> filter2(SkColorFilterImageFilter::Create(redToGreen.get(), filter1.get())); |
| |
| SkBitmap result; |
| result.allocN32Pixels(kBitmapSize, kBitmapSize); |
| |
| SkPaint paint; |
| paint.setColor(SK_ColorBLUE); |
| paint.setImageFilter(filter2.get()); |
| 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 |
| SkBitmap bitmap, result; |
| make_small_bitmap(bitmap); |
| result.allocN32Pixels(kBitmapSize, kBitmapSize); |
| |
| { |
| // This tests for : |
| // 1 ) location at (0,0,1) |
| SkPoint3 location(0, 0, SK_Scalar1); |
| // 2 ) location and target at same value |
| SkPoint3 target(location.fX, location.fY, location.fZ); |
| // 3 ) large negative specular exponent value |
| SkScalar specularExponent = -1000; |
| |
| SkAutoTUnref<SkImageFilter> bmSrc(SkBitmapSource::Create(bitmap)); |
| SkPaint paint; |
| paint.setImageFilter(SkLightingImageFilter::CreateSpotLitSpecular( |
| location, target, specularExponent, 180, |
| 0xFFFFFFFF, SK_Scalar1, SK_Scalar1, SK_Scalar1, |
| bmSrc))->unref(); |
| SkCanvas canvas(result); |
| SkRect r = SkRect::MakeWH(SkIntToScalar(kBitmapSize), |
| SkIntToScalar(kBitmapSize)); |
| canvas.drawRect(r, paint); |
| } |
| |
| { |
| // This tests for scale bringing width to 0 |
| SkSize scale = SkSize::Make(-0.001f, SK_Scalar1); |
| SkAutoTUnref<SkImageFilter> bmSrc(SkBitmapSource::Create(bitmap)); |
| SkAutoTUnref<SkBicubicImageFilter> bicubic( |
| SkBicubicImageFilter::CreateMitchell(scale, bmSrc)); |
| SkBitmapDevice device(bitmap); |
| SkDeviceImageFilterProxy proxy(&device); |
| SkIPoint loc = SkIPoint::Make(0, 0); |
| // An empty input should early return and return false |
| SkAutoTUnref<SkImageFilter::Cache> cache(SkImageFilter::Cache::Create(2)); |
| SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeEmpty(), cache.get()); |
| REPORTER_ASSERT(reporter, |
| !bicubic->filterImage(&proxy, bitmap, ctx, &result, &loc)); |
| } |
| } |
| } |
| |
| static void test_crop_rects(SkBaseDevice* device, skiatest::Reporter* reporter) { |
| // Check that all filters offset to their absolute crop rect, |
| // unaffected by the input crop rect. |
| // Tests pass by not asserting. |
| SkBitmap bitmap; |
| bitmap.allocN32Pixels(100, 100); |
| bitmap.eraseARGB(0, 0, 0, 0); |
| SkDeviceImageFilterProxy proxy(device); |
| |
| SkImageFilter::CropRect inputCropRect(SkRect::MakeXYWH(8, 13, 80, 80)); |
| SkImageFilter::CropRect cropRect(SkRect::MakeXYWH(20, 30, 60, 60)); |
| SkAutoTUnref<SkImageFilter> input(make_grayscale(NULL, &inputCropRect)); |
| |
| SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateModeFilter(SK_ColorRED, SkXfermode::kSrcIn_Mode)); |
| SkPoint3 location(0, 0, SK_Scalar1); |
| SkPoint3 target(SK_Scalar1, SK_Scalar1, SK_Scalar1); |
| SkScalar kernel[9] = { |
| SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1), |
| SkIntToScalar( 1), SkIntToScalar(-7), SkIntToScalar( 1), |
| SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1), |
| }; |
| SkISize kernelSize = SkISize::Make(3, 3); |
| SkScalar gain = SK_Scalar1, bias = 0; |
| |
| SkImageFilter* filters[] = { |
| SkColorFilterImageFilter::Create(cf.get(), input.get(), &cropRect), |
| SkDisplacementMapEffect::Create(SkDisplacementMapEffect::kR_ChannelSelectorType, |
| SkDisplacementMapEffect::kB_ChannelSelectorType, |
| 40.0f, input.get(), input.get(), &cropRect), |
| SkBlurImageFilter::Create(SK_Scalar1, SK_Scalar1, input.get(), &cropRect), |
| SkDropShadowImageFilter::Create(SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_ColorGREEN, input.get(), &cropRect), |
| SkLightingImageFilter::CreatePointLitDiffuse(location, SK_ColorGREEN, 0, 0, input.get(), &cropRect), |
| SkLightingImageFilter::CreatePointLitSpecular(location, SK_ColorGREEN, 0, 0, 0, input.get(), &cropRect), |
| SkMatrixConvolutionImageFilter::Create(kernelSize, kernel, gain, bias, SkIPoint::Make(1, 1), SkMatrixConvolutionImageFilter::kRepeat_TileMode, false, input.get(), &cropRect), |
| SkMergeImageFilter::Create(input.get(), input.get(), SkXfermode::kSrcOver_Mode, &cropRect), |
| SkOffsetImageFilter::Create(SK_Scalar1, SK_Scalar1, input.get(), &cropRect), |
| SkOffsetImageFilter::Create(SK_Scalar1, SK_Scalar1, input.get(), &cropRect), |
| SkDilateImageFilter::Create(3, 2, input.get(), &cropRect), |
| SkErodeImageFilter::Create(2, 3, input.get(), &cropRect), |
| SkTileImageFilter::Create(inputCropRect.rect(), cropRect.rect(), input.get()), |
| SkXfermodeImageFilter::Create(SkXfermode::Create(SkXfermode::kSrcOver_Mode), input.get(), input.get(), &cropRect), |
| }; |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) { |
| SkImageFilter* filter = filters[i]; |
| SkBitmap result; |
| SkIPoint offset; |
| SkString str; |
| str.printf("filter %d", static_cast<int>(i)); |
| SkAutoTUnref<SkImageFilter::Cache> cache(SkImageFilter::Cache::Create(2)); |
| SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeLargest(), cache.get()); |
| REPORTER_ASSERT_MESSAGE(reporter, filter->filterImage(&proxy, bitmap, ctx, |
| &result, &offset), str.c_str()); |
| REPORTER_ASSERT_MESSAGE(reporter, offset.fX == 20 && offset.fY == 30, str.c_str()); |
| } |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) { |
| SkSafeUnref(filters[i]); |
| } |
| } |
| |
| static SkBitmap make_gradient_circle(int width, int height) { |
| SkBitmap bitmap; |
| SkScalar x = SkIntToScalar(width / 2); |
| SkScalar y = SkIntToScalar(height / 2); |
| SkScalar radius = SkMinScalar(x, y) * 0.8f; |
| bitmap.allocN32Pixels(width, height); |
| SkCanvas canvas(bitmap); |
| canvas.clear(0x00000000); |
| SkColor colors[2]; |
| colors[0] = SK_ColorWHITE; |
| colors[1] = SK_ColorBLACK; |
| SkAutoTUnref<SkShader> shader( |
| SkGradientShader::CreateRadial(SkPoint::Make(x, y), radius, colors, NULL, 2, |
| SkShader::kClamp_TileMode) |
| ); |
| SkPaint paint; |
| paint.setShader(shader); |
| canvas.drawCircle(x, y, radius, paint); |
| return bitmap; |
| } |
| |
| 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. |
| |
| SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateModeFilter(SK_ColorRED, SkXfermode::kSrcIn_Mode)); |
| SkPoint3 location(0, 0, SK_Scalar1); |
| SkPoint3 target(SK_Scalar1, SK_Scalar1, SK_Scalar1); |
| SkScalar kernel[9] = { |
| SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1), |
| SkIntToScalar( 1), SkIntToScalar(-7), SkIntToScalar( 1), |
| SkIntToScalar( 1), SkIntToScalar( 1), SkIntToScalar( 1), |
| }; |
| SkISize kernelSize = SkISize::Make(3, 3); |
| SkScalar gain = SK_Scalar1, bias = 0; |
| SkScalar five = SkIntToScalar(5); |
| |
| SkAutoTUnref<SkImageFilter> gradient_source(SkBitmapSource::Create(make_gradient_circle(64, 64))); |
| SkAutoTUnref<SkImageFilter> blur(SkBlurImageFilter::Create(five, five)); |
| SkMatrix matrix; |
| |
| matrix.setTranslate(SK_Scalar1, SK_Scalar1); |
| matrix.postRotate(SkIntToScalar(45), SK_Scalar1, SK_Scalar1); |
| |
| SkRTreeFactory factory; |
| SkPictureRecorder recorder; |
| SkCanvas* recordingCanvas = recorder.beginRecording(64, 64, &factory, 0); |
| |
| SkPaint greenPaint; |
| greenPaint.setColor(SK_ColorGREEN); |
| recordingCanvas->drawRect(SkRect::Make(SkIRect::MakeXYWH(10, 10, 30, 20)), greenPaint); |
| SkAutoTUnref<SkPicture> picture(recorder.endRecording()); |
| SkAutoTUnref<SkImageFilter> pictureFilter(SkPictureImageFilter::Create(picture.get())); |
| |
| struct { |
| const char* fName; |
| SkImageFilter* fFilter; |
| } filters[] = { |
| { "color filter", SkColorFilterImageFilter::Create(cf.get()) }, |
| { "displacement map", SkDisplacementMapEffect::Create( |
| SkDisplacementMapEffect::kR_ChannelSelectorType, |
| SkDisplacementMapEffect::kB_ChannelSelectorType, |
| 20.0f, gradient_source.get()) }, |
| { "blur", SkBlurImageFilter::Create(SK_Scalar1, SK_Scalar1) }, |
| { "drop shadow", SkDropShadowImageFilter::Create( |
| SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_Scalar1, SK_ColorGREEN) }, |
| { "diffuse lighting", SkLightingImageFilter::CreatePointLitDiffuse( |
| location, SK_ColorGREEN, 0, 0) }, |
| { "specular lighting", |
| SkLightingImageFilter::CreatePointLitSpecular(location, SK_ColorGREEN, 0, 0, 0) }, |
| { "matrix convolution", |
| SkMatrixConvolutionImageFilter::Create( |
| kernelSize, kernel, gain, bias, SkIPoint::Make(1, 1), |
| SkMatrixConvolutionImageFilter::kRepeat_TileMode, false) }, |
| { "merge", SkMergeImageFilter::Create(NULL, NULL, SkXfermode::kSrcOver_Mode) }, |
| { "offset", SkOffsetImageFilter::Create(SK_Scalar1, SK_Scalar1) }, |
| { "dilate", SkDilateImageFilter::Create(3, 2) }, |
| { "erode", SkErodeImageFilter::Create(2, 3) }, |
| { "tile", SkTileImageFilter::Create(SkRect::MakeXYWH(0, 0, 50, 50), |
| SkRect::MakeXYWH(0, 0, 100, 100), NULL) }, |
| { "matrix", SkMatrixImageFilter::Create(matrix, SkPaint::kLow_FilterLevel) }, |
| { "blur and offset", SkOffsetImageFilter::Create(five, five, blur.get()) }, |
| { "picture and blur", SkBlurImageFilter::Create(five, five, pictureFilter.get()) }, |
| }; |
| |
| SkBitmap untiledResult, tiledResult; |
| 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 (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) { |
| tiledCanvas.clear(0); |
| untiledCanvas.clear(0); |
| SkPaint paint; |
| paint.setImageFilter(filters[i].fFilter); |
| 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.drawText(text, strlen(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.drawText(text, strlen(text), 0, ypos, paint); |
| tiledCanvas.restore(); |
| } |
| } |
| untiledCanvas.flush(); |
| tiledCanvas.flush(); |
| for (int y = 0; y < height; y++) { |
| int diffs = memcmp(untiledResult.getAddr32(0, y), tiledResult.getAddr32(0, y), untiledResult.rowBytes()); |
| REPORTER_ASSERT_MESSAGE(reporter, !diffs, filters[i].fName); |
| if (diffs) { |
| break; |
| } |
| } |
| } |
| } |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(filters); ++i) { |
| SkSafeUnref(filters[i].fFilter); |
| } |
| } |
| |
| 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); |
| |
| SkAutoTUnref<SkImageFilter> filter( |
| SkMatrixConvolutionImageFilter::Create( |
| kernelSize, kernel, gain, bias, kernelOffset, |
| SkMatrixConvolutionImageFilter::kRepeat_TileMode, false)); |
| |
| SkBitmap result; |
| int width = 16, height = 16; |
| result.allocN32Pixels(width, height); |
| SkCanvas canvas(result); |
| canvas.clear(0); |
| |
| SkPaint paint; |
| paint.setImageFilter(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); |
| |
| SkAutoTUnref<SkImageFilter> filter( |
| SkMatrixConvolutionImageFilter::Create( |
| kernelSize, kernel, gain, bias, kernelOffset, |
| SkMatrixConvolutionImageFilter::kClamp_TileMode, true)); |
| |
| SkBitmap result; |
| |
| int width = 10, height = 10; |
| result.allocN32Pixels(width, height); |
| SkCanvas canvas(result); |
| canvas.clear(0); |
| |
| SkPaint filterPaint; |
| filterPaint.setImageFilter(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(); |
| } |
| |
| DEF_TEST(ImageFilterCropRect, reporter) { |
| SkBitmap temp; |
| temp.allocN32Pixels(100, 100); |
| SkBitmapDevice device(temp); |
| test_crop_rects(&device, reporter); |
| } |
| |
| DEF_TEST(ImageFilterMatrixTest, reporter) { |
| SkBitmap temp; |
| temp.allocN32Pixels(100, 100); |
| SkBitmapDevice device(temp); |
| SkCanvas canvas(&device); |
| canvas.scale(SkIntToScalar(2), SkIntToScalar(2)); |
| |
| SkMatrix expectedMatrix = canvas.getTotalMatrix(); |
| |
| SkRTreeFactory factory; |
| SkPictureRecorder recorder; |
| SkCanvas* recordingCanvas = recorder.beginRecording(100, 100, &factory, 0); |
| |
| SkPaint paint; |
| SkAutoTUnref<MatrixTestImageFilter> imageFilter( |
| new MatrixTestImageFilter(reporter, expectedMatrix)); |
| paint.setImageFilter(imageFilter.get()); |
| recordingCanvas->saveLayer(NULL, &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 |
| SkAutoTUnref<SkPicture> picture(recorder.endRecording()); |
| |
| canvas.drawPicture(picture); |
| } |
| |
| DEF_TEST(ImageFilterPictureImageFilterTest, 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); |
| SkAutoTUnref<SkPicture> picture(recorder.endRecording()); |
| |
| // Wrap that SkPicture in an SkPictureImageFilter. |
| SkAutoTUnref<SkImageFilter> imageFilter( |
| SkPictureImageFilter::Create(picture.get())); |
| |
| // Check that SkPictureImageFilter successfully serializes its contained |
| // SkPicture when not in cross-process mode. |
| SkPaint paint; |
| paint.setImageFilter(imageFilter.get()); |
| SkPictureRecorder outerRecorder; |
| SkCanvas* outerCanvas = outerRecorder.beginRecording(1, 1, &factory, 0); |
| SkPaint redPaintWithFilter; |
| redPaintWithFilter.setColor(SK_ColorRED); |
| redPaintWithFilter.setImageFilter(imageFilter.get()); |
| outerCanvas->drawRect(SkRect::Make(SkIRect::MakeWH(1, 1)), redPaintWithFilter); |
| SkAutoTUnref<SkPicture> outerPicture(outerRecorder.endRecording()); |
| |
| SkBitmap bitmap; |
| bitmap.allocN32Pixels(1, 1); |
| SkBitmapDevice device(bitmap); |
| SkCanvas canvas(&device); |
| |
| // 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. |
| SkAutoTUnref<SkData> data(SkValidatingSerializeFlattenable(imageFilter.get())); |
| SkAutoTUnref<SkFlattenable> flattenable(SkValidatingDeserializeFlattenable( |
| data->data(), data->size(), SkImageFilter::GetFlattenableType())); |
| SkImageFilter* unflattenedFilter = static_cast<SkImageFilter*>(flattenable.get()); |
| |
| redPaintWithFilter.setImageFilter(unflattenedFilter); |
| SkPictureRecorder crossProcessRecorder; |
| SkCanvas* crossProcessCanvas = crossProcessRecorder.beginRecording(1, 1, &factory, 0); |
| crossProcessCanvas->drawRect(SkRect::Make(SkIRect::MakeWH(1, 1)), redPaintWithFilter); |
| SkAutoTUnref<SkPicture> crossProcessPicture(crossProcessRecorder.endRecording()); |
| |
| canvas.clear(0x0); |
| canvas.drawPicture(crossProcessPicture); |
| pixel = *bitmap.getAddr32(0, 0); |
| // The result here should not be green, since the filter draws nothing. |
| REPORTER_ASSERT(reporter, pixel != SK_ColorGREEN); |
| } |
| |
| DEF_TEST(ImageFilterEmptySaveLayerTest, 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); |
| SkBitmapDevice device(bitmap); |
| SkCanvas canvas(&device); |
| |
| SkRTreeFactory factory; |
| SkPictureRecorder recorder; |
| |
| SkAutoTUnref<SkColorFilter> green( |
| SkColorFilter::CreateModeFilter(SK_ColorGREEN, SkXfermode::kSrc_Mode)); |
| SkAutoTUnref<SkColorFilterImageFilter> imageFilter( |
| SkColorFilterImageFilter::Create(green.get())); |
| SkPaint imageFilterPaint; |
| imageFilterPaint.setImageFilter(imageFilter.get()); |
| SkPaint colorFilterPaint; |
| colorFilterPaint.setColorFilter(green.get()); |
| |
| SkRect bounds = SkRect::MakeWH(10, 10); |
| |
| SkCanvas* recordingCanvas = recorder.beginRecording(10, 10, &factory, 0); |
| recordingCanvas->saveLayer(&bounds, &imageFilterPaint); |
| recordingCanvas->restore(); |
| SkAutoTUnref<SkPicture> picture(recorder.endRecording()); |
| |
| 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(NULL, &imageFilterPaint); |
| recordingCanvas->restore(); |
| SkAutoTUnref<SkPicture> picture2(recorder.endRecording()); |
| |
| 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(); |
| SkAutoTUnref<SkPicture> picture3(recorder.endRecording()); |
| |
| canvas.clear(0); |
| canvas.drawPicture(picture3); |
| pixel = *bitmap.getAddr32(0, 0); |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| } |
| |
| static void test_huge_blur(SkBaseDevice* device, skiatest::Reporter* reporter) { |
| SkCanvas canvas(device); |
| |
| 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. |
| SkAutoTUnref<SkImageFilter> blur(SkBlurImageFilter::Create(SkIntToScalar(1<<30), SkIntToScalar(1<<30))); |
| |
| SkPaint paint; |
| paint.setImageFilter(blur); |
| canvas.drawSprite(bitmap, 0, 0, &paint); |
| } |
| |
| DEF_TEST(HugeBlurImageFilter, reporter) { |
| SkBitmap temp; |
| temp.allocN32Pixels(100, 100); |
| SkBitmapDevice device(temp); |
| test_huge_blur(&device, reporter); |
| } |
| |
| static void test_xfermode_cropped_input(SkBaseDevice* device, skiatest::Reporter* reporter) { |
| SkCanvas canvas(device); |
| canvas.clear(0); |
| |
| SkBitmap bitmap; |
| bitmap.allocN32Pixels(1, 1); |
| bitmap.eraseARGB(255, 255, 255, 255); |
| |
| SkAutoTUnref<SkColorFilter> green( |
| SkColorFilter::CreateModeFilter(SK_ColorGREEN, SkXfermode::kSrcIn_Mode)); |
| SkAutoTUnref<SkColorFilterImageFilter> greenFilter( |
| SkColorFilterImageFilter::Create(green.get())); |
| SkImageFilter::CropRect cropRect(SkRect::MakeEmpty()); |
| SkAutoTUnref<SkColorFilterImageFilter> croppedOut( |
| SkColorFilterImageFilter::Create(green.get(), NULL, &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. |
| SkXfermode* mode = SkXfermode::Create(SkXfermode::kSrcOver_Mode); |
| SkAutoTUnref<SkImageFilter> xfermodeNoFg( |
| SkXfermodeImageFilter::Create(mode, greenFilter, croppedOut)); |
| SkAutoTUnref<SkImageFilter> xfermodeNoBg( |
| SkXfermodeImageFilter::Create(mode, croppedOut, greenFilter)); |
| SkAutoTUnref<SkImageFilter> xfermodeNoFgNoBg( |
| SkXfermodeImageFilter::Create(mode, croppedOut, croppedOut)); |
| |
| SkPaint paint; |
| paint.setImageFilter(xfermodeNoFg); |
| canvas.drawSprite(bitmap, 0, 0, &paint); |
| |
| uint32_t pixel; |
| SkImageInfo info = SkImageInfo::MakeN32Premul(1, 1); |
| canvas.readPixels(info, &pixel, 4, 0, 0); |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| |
| paint.setImageFilter(xfermodeNoBg); |
| canvas.drawSprite(bitmap, 0, 0, &paint); |
| canvas.readPixels(info, &pixel, 4, 0, 0); |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| |
| paint.setImageFilter(xfermodeNoFgNoBg); |
| canvas.drawSprite(bitmap, 0, 0, &paint); |
| canvas.readPixels(info, &pixel, 4, 0, 0); |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| } |
| |
| DEF_TEST(ImageFilterNestedSaveLayer, reporter) { |
| SkBitmap temp; |
| temp.allocN32Pixels(50, 50); |
| SkBitmapDevice device(temp); |
| SkCanvas canvas(&device); |
| 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)); |
| SkAutoTUnref<SkImageFilter> matrixFilter( |
| SkMatrixImageFilter::Create(matrix, SkPaint::kLow_FilterLevel)); |
| |
| // 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, NULL); |
| SkPaint filterPaint; |
| filterPaint.setImageFilter(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::MakeN32Premul(1, 1); |
| uint32_t pixel; |
| canvas.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); |
| canvas.readPixels(info, &pixel, 4, 25, 25); |
| canvas.saveLayer(&bounds1, NULL); |
| canvas.drawSprite(bitmap, 20, 20, &filterPaint); |
| canvas.restore(); |
| |
| canvas.readPixels(info, &pixel, 4, 25, 25); |
| REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN); |
| } |
| |
| DEF_TEST(XfermodeImageFilterCroppedInput, reporter) { |
| SkBitmap temp; |
| temp.allocN32Pixels(100, 100); |
| SkBitmapDevice device(temp); |
| test_xfermode_cropped_input(&device, reporter); |
| } |
| |
| #if SK_SUPPORT_GPU |
| DEF_GPUTEST(ImageFilterCropRectGPU, reporter, factory) { |
| GrContext* context = factory->get(static_cast<GrContextFactory::GLContextType>(0)); |
| SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(context, |
| SkImageInfo::MakeN32Premul(100, 100), |
| 0)); |
| test_crop_rects(device, reporter); |
| } |
| |
| DEF_GPUTEST(HugeBlurImageFilterGPU, reporter, factory) { |
| GrContext* context = factory->get(static_cast<GrContextFactory::GLContextType>(0)); |
| SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(context, |
| SkImageInfo::MakeN32Premul(100, 100), |
| 0)); |
| test_huge_blur(device, reporter); |
| } |
| |
| DEF_GPUTEST(XfermodeImageFilterCroppedInputGPU, reporter, factory) { |
| GrContext* context = factory->get(static_cast<GrContextFactory::GLContextType>(0)); |
| SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(context, |
| SkImageInfo::MakeN32Premul(1, 1), |
| 0)); |
| test_xfermode_cropped_input(device, reporter); |
| } |
| #endif |
