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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/layers/solid_color_layer.h"
#include "cc/layers/texture_layer.h"
#include "cc/test/layer_tree_pixel_test.h"
#include "cc/test/pixel_comparator.h"
#if !defined(OS_ANDROID)
namespace cc {
namespace {
SkXfermode::Mode const kBlendModes[] = {
SkXfermode::kSrcOver_Mode, SkXfermode::kScreen_Mode,
SkXfermode::kOverlay_Mode, SkXfermode::kDarken_Mode,
SkXfermode::kLighten_Mode, SkXfermode::kColorDodge_Mode,
SkXfermode::kColorBurn_Mode, SkXfermode::kHardLight_Mode,
SkXfermode::kSoftLight_Mode, SkXfermode::kDifference_Mode,
SkXfermode::kExclusion_Mode, SkXfermode::kMultiply_Mode,
SkXfermode::kHue_Mode, SkXfermode::kSaturation_Mode,
SkXfermode::kColor_Mode, SkXfermode::kLuminosity_Mode};
const int kBlendModesCount = arraysize(kBlendModes);
class LayerTreeHostBlendingPixelTest : public LayerTreePixelTest {
public:
LayerTreeHostBlendingPixelTest() {
pixel_comparator_.reset(new FuzzyPixelOffByOneComparator(true));
}
protected:
void RunBlendingWithRootPixelTestType(PixelTestType type) {
const int kLaneWidth = 15;
const int kLaneHeight = kBlendModesCount * kLaneWidth;
const int kRootSize = (kBlendModesCount + 2) * kLaneWidth;
scoped_refptr<SolidColorLayer> background =
CreateSolidColorLayer(gfx::Rect(kRootSize, kRootSize), kCSSOrange);
// Orange child layers will blend with the green background
for (int i = 0; i < kBlendModesCount; ++i) {
gfx::Rect child_rect(
(i + 1) * kLaneWidth, kLaneWidth, kLaneWidth, kLaneHeight);
scoped_refptr<SolidColorLayer> green_lane =
CreateSolidColorLayer(child_rect, kCSSGreen);
background->AddChild(green_lane);
green_lane->SetBlendMode(kBlendModes[i]);
}
RunPixelTest(type,
background,
base::FilePath(FILE_PATH_LITERAL("blending_with_root.png")));
}
void RunBlendingWithTransparentPixelTestType(PixelTestType type) {
const int kLaneWidth = 15;
const int kLaneHeight = kBlendModesCount * kLaneWidth;
const int kRootSize = (kBlendModesCount + 2) * kLaneWidth;
scoped_refptr<SolidColorLayer> root =
CreateSolidColorLayer(gfx::Rect(kRootSize, kRootSize), kCSSBrown);
scoped_refptr<SolidColorLayer> background = CreateSolidColorLayer(
gfx::Rect(0, kLaneWidth * 2, kRootSize, kLaneWidth), kCSSOrange);
root->AddChild(background);
background->SetIsRootForIsolatedGroup(true);
// Orange child layers will blend with the green background
for (int i = 0; i < kBlendModesCount; ++i) {
gfx::Rect child_rect(
(i + 1) * kLaneWidth, -kLaneWidth, kLaneWidth, kLaneHeight);
scoped_refptr<SolidColorLayer> green_lane =
CreateSolidColorLayer(child_rect, kCSSGreen);
background->AddChild(green_lane);
green_lane->SetBlendMode(kBlendModes[i]);
}
RunPixelTest(type,
root,
base::FilePath(FILE_PATH_LITERAL("blending_transparent.png")));
}
};
TEST_F(LayerTreeHostBlendingPixelTest, BlendingWithRoot_GL) {
RunBlendingWithRootPixelTestType(GL_WITH_BITMAP);
}
TEST_F(LayerTreeHostBlendingPixelTest, BlendingWithRoot_Software) {
RunBlendingWithRootPixelTestType(SOFTWARE_WITH_BITMAP);
}
TEST_F(LayerTreeHostBlendingPixelTest, BlendingWithBackgroundFilter) {
const int kLaneWidth = 15;
const int kLaneHeight = kBlendModesCount * kLaneWidth;
const int kRootSize = (kBlendModesCount + 2) * kLaneWidth;
scoped_refptr<SolidColorLayer> background =
CreateSolidColorLayer(gfx::Rect(kRootSize, kRootSize), kCSSOrange);
// Orange child layers have a background filter set and they will blend with
// the green background
for (int i = 0; i < kBlendModesCount; ++i) {
gfx::Rect child_rect(
(i + 1) * kLaneWidth, kLaneWidth, kLaneWidth, kLaneHeight);
scoped_refptr<SolidColorLayer> green_lane =
CreateSolidColorLayer(child_rect, kCSSGreen);
background->AddChild(green_lane);
FilterOperations filters;
filters.Append(FilterOperation::CreateGrayscaleFilter(.75));
green_lane->SetBackgroundFilters(filters);
green_lane->SetBlendMode(kBlendModes[i]);
}
RunPixelTest(GL_WITH_BITMAP,
background,
base::FilePath(FILE_PATH_LITERAL("blending_and_filter.png")));
}
TEST_F(LayerTreeHostBlendingPixelTest, BlendingWithTransparent_GL) {
RunBlendingWithTransparentPixelTestType(GL_WITH_BITMAP);
}
TEST_F(LayerTreeHostBlendingPixelTest, BlendingWithTransparent_Software) {
RunBlendingWithTransparentPixelTestType(SOFTWARE_WITH_BITMAP);
}
} // namespace
} // namespace cc
#endif // OS_ANDROID
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