| // Copyright 2012 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/render_surface_filters.h" |
| |
| #include "cc/test/compositor_fake_web_graphics_context_3d.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include <public/WebFilterOperation.h> |
| #include <public/WebFilterOperations.h> |
| |
| using namespace WebKit; |
| |
| namespace cc { |
| namespace { |
| |
| // Checks whether op can be combined with a following color matrix. |
| bool isCombined(const WebFilterOperation& op) |
| { |
| WebFilterOperations filters; |
| filters.append(op); |
| filters.append(WebFilterOperation::createBrightnessFilter(0)); // brightness(0) is identity. |
| WebFilterOperations optimized = RenderSurfaceFilters::optimize(filters); |
| return optimized.size() == 1; |
| } |
| |
| TEST(RenderSurfaceFiltersTest, testColorMatrixFiltersCombined) |
| { |
| // Several filters should always combine for any amount between 0 and 1: |
| // grayscale, saturate, invert, contrast, opacity. |
| EXPECT_TRUE(isCombined(WebFilterOperation::createGrayscaleFilter(0))); |
| // Note that we use 0.3f to avoid "argument is truncated from 'double' to |
| // 'float'" warnings on Windows. 0.5 is exactly representable as a float, so |
| // there is no warning. |
| EXPECT_TRUE(isCombined(WebFilterOperation::createGrayscaleFilter(0.3f))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createGrayscaleFilter(0.5))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createGrayscaleFilter(1))); |
| |
| EXPECT_TRUE(isCombined(WebFilterOperation::createSaturateFilter(0))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createSaturateFilter(0.3f))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createSaturateFilter(0.5))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createSaturateFilter(1))); |
| |
| EXPECT_TRUE(isCombined(WebFilterOperation::createInvertFilter(0))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createInvertFilter(0.3f))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createInvertFilter(0.5))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createInvertFilter(1))); |
| |
| EXPECT_TRUE(isCombined(WebFilterOperation::createContrastFilter(0))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createContrastFilter(0.3f))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createContrastFilter(0.5))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createContrastFilter(1))); |
| |
| EXPECT_TRUE(isCombined(WebFilterOperation::createOpacityFilter(0))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createOpacityFilter(0.3f))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createOpacityFilter(0.5))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createOpacityFilter(1))); |
| |
| // Several filters should never combine: brightness(amount > 0), blur, drop-shadow. |
| EXPECT_FALSE(isCombined(WebFilterOperation::createBrightnessFilter(0.5))); |
| EXPECT_FALSE(isCombined(WebFilterOperation::createBrightnessFilter(1))); |
| EXPECT_FALSE(isCombined(WebFilterOperation::createBlurFilter(3))); |
| EXPECT_FALSE(isCombined(WebFilterOperation::createDropShadowFilter(WebPoint(2, 2), 3, 0xffffffff))); |
| |
| // sepia and hue may or may not combine depending on the value. |
| EXPECT_TRUE(isCombined(WebFilterOperation::createSepiaFilter(0))); |
| EXPECT_FALSE(isCombined(WebFilterOperation::createSepiaFilter(1))); |
| EXPECT_TRUE(isCombined(WebFilterOperation::createHueRotateFilter(0))); |
| EXPECT_FALSE(isCombined(WebFilterOperation::createHueRotateFilter(180))); |
| |
| float matrix1[20] = { |
| 1, 0, 0, 0, 0, |
| 0, 1, 0, 0, 0, |
| 0, 0, 1, 0, 0, |
| 0, 0, 0, 1, 0, |
| }; |
| EXPECT_TRUE(isCombined(WebFilterOperation::createColorMatrixFilter(matrix1))); |
| |
| float matrix2[20] = { |
| 1, 1, 0, 0, 0, |
| 0, 1, 0, 0, 0, |
| 0, 0, 1, 0, 0, |
| 0, 0, 0, 1, 0, |
| }; |
| EXPECT_FALSE(isCombined(WebFilterOperation::createColorMatrixFilter(matrix2))); |
| |
| float matrix3[20] = { |
| 0.25, 0, 0, 0, 255*0.75, |
| 0, 1, 0, 0, 0, |
| 0, 0, 1, 0, 0, |
| 0, 0, 0, 1, 0, |
| }; |
| EXPECT_TRUE(isCombined(WebFilterOperation::createColorMatrixFilter(matrix3))); |
| |
| float matrix4[20] = { |
| -0.25, 0.75, 0, 0, 255*0.25, |
| 0, 1, 0, 0, 0, |
| 0, 0, 1, 0, 0, |
| 0, 0, 0, 1, 0, |
| }; |
| EXPECT_TRUE(isCombined(WebFilterOperation::createColorMatrixFilter(matrix4))); |
| } |
| |
| TEST(RenderSurfaceFiltersTest, testOptimize) |
| { |
| WebFilterOperation combines(WebFilterOperation::createBrightnessFilter(0)); |
| WebFilterOperation doesntCombine(WebFilterOperation::createBrightnessFilter(1)); |
| |
| WebFilterOperations filters; |
| WebFilterOperations optimized = RenderSurfaceFilters::optimize(filters); |
| EXPECT_EQ(0u, optimized.size()); |
| |
| filters.append(combines); |
| optimized = RenderSurfaceFilters::optimize(filters); |
| EXPECT_EQ(1u, optimized.size()); |
| |
| filters.append(combines); |
| optimized = RenderSurfaceFilters::optimize(filters); |
| EXPECT_EQ(1u, optimized.size()); |
| |
| filters.append(doesntCombine); |
| optimized = RenderSurfaceFilters::optimize(filters); |
| EXPECT_EQ(1u, optimized.size()); |
| |
| filters.append(combines); |
| optimized = RenderSurfaceFilters::optimize(filters); |
| EXPECT_EQ(2u, optimized.size()); |
| |
| filters.append(doesntCombine); |
| optimized = RenderSurfaceFilters::optimize(filters); |
| EXPECT_EQ(2u, optimized.size()); |
| |
| filters.append(doesntCombine); |
| optimized = RenderSurfaceFilters::optimize(filters); |
| EXPECT_EQ(3u, optimized.size()); |
| } |
| |
| } // namespace |
| } // namespace cc |