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27 #include "SkImageFilter.h"
28 #include "platform/graphics/filters/FEBlend.h"
29 #include "platform/graphics/filters/FEGaussianBlur.h"
30 #include "platform/graphics/filters/FEMerge.h"
31 #include "platform/graphics/filters/FilterOperations.h"
32 #include "platform/graphics/filters/ReferenceFilter.h"
33 #include "platform/graphics/filters/SkiaImageFilterBuilder.h"
34 #include "platform/graphics/filters/SourceGraphic.h"
35 #include <gtest/gtest.h>
38 using namespace WebCore;
40 class ImageFilterBuilderTest : public Test {
45 RefPtr<ReferenceFilter> referenceFilter = ReferenceFilter::create();
47 // Add a dummy source graphic input
48 RefPtr<FilterEffect> sourceEffect = referenceFilter->sourceGraphic();
49 sourceEffect->setOperatingColorSpace(ColorSpaceDeviceRGB);
51 // Add a blur effect (with input : source)
52 RefPtr<FilterEffect> blurEffect =
53 FEGaussianBlur::create(referenceFilter.get(), 3.0f, 3.0f);
54 blurEffect->setOperatingColorSpace(ColorSpaceLinearRGB);
55 blurEffect->inputEffects().append(sourceEffect);
57 // Add a blend effect (with inputs : blur, source)
58 RefPtr<FilterEffect> blendEffect =
59 FEBlend::create(referenceFilter.get(), FEBLEND_MODE_NORMAL);
60 blendEffect->setOperatingColorSpace(ColorSpaceDeviceRGB);
61 FilterEffectVector& blendInputs = blendEffect->inputEffects();
62 blendInputs.reserveCapacity(2);
63 blendInputs.append(sourceEffect);
64 blendInputs.append(blurEffect);
66 // Add a merge effect (with inputs : blur, blend)
67 RefPtr<FilterEffect> mergeEffect = FEMerge::create(referenceFilter.get());
68 mergeEffect->setOperatingColorSpace(ColorSpaceLinearRGB);
69 FilterEffectVector& mergeInputs = mergeEffect->inputEffects();
70 mergeInputs.reserveCapacity(2);
71 mergeInputs.append(blurEffect);
72 mergeInputs.append(blendEffect);
73 referenceFilter->setLastEffect(mergeEffect);
75 // Get SkImageFilter resulting tree
76 SkiaImageFilterBuilder builder;
77 RefPtr<SkImageFilter> filter = builder.build(referenceFilter->lastEffect(), ColorSpaceDeviceRGB);
79 // Let's check that the resulting tree looks like this :
80 // ColorSpace (Linear->Device) : CS (L->D)
96 EXPECT_EQ(filter->countInputs(), 1); // Should be CS (L->D)
97 SkImageFilter* child = filter->getInput(0); // Should be Merge
98 EXPECT_EQ(child->asColorFilter(0), false);
99 EXPECT_EQ(child->countInputs(), 2);
100 child = child->getInput(1); // Should be CS (D->L)
101 EXPECT_EQ(child->asColorFilter(0), true);
102 EXPECT_EQ(child->countInputs(), 1);
103 child = child->getInput(0); // Should be Blend
104 EXPECT_EQ(child->asColorFilter(0), false);
105 EXPECT_EQ(child->countInputs(), 2);
106 child = child->getInput(0); // Should be CS (L->D)
107 EXPECT_EQ(child->asColorFilter(0), true);
108 EXPECT_EQ(child->countInputs(), 1);
109 child = child->getInput(0); // Should be Blur
110 EXPECT_EQ(child->asColorFilter(0), false);
111 EXPECT_EQ(child->countInputs(), 1);
112 child = child->getInput(0); // Should be CS (D->L)
113 EXPECT_EQ(child->asColorFilter(0), true);
114 EXPECT_EQ(child->countInputs(), 1);
120 TEST_F(ImageFilterBuilderTest, testColorSpace)