| // Copyright 2014 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/resources/display_item_list.h" |
| |
| #include <vector> |
| |
| #include "cc/output/filter_operation.h" |
| #include "cc/output/filter_operations.h" |
| #include "cc/resources/clip_display_item.h" |
| #include "cc/resources/drawing_display_item.h" |
| #include "cc/resources/filter_display_item.h" |
| #include "cc/resources/transform_display_item.h" |
| #include "cc/test/skia_common.h" |
| #include "skia/ext/refptr.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "third_party/skia/include/core/SkBitmap.h" |
| #include "third_party/skia/include/core/SkCanvas.h" |
| #include "third_party/skia/include/core/SkColor.h" |
| #include "third_party/skia/include/core/SkPictureRecorder.h" |
| #include "third_party/skia/include/effects/SkBitmapSource.h" |
| #include "ui/gfx/skia_util.h" |
| |
| namespace cc { |
| namespace { |
| |
| TEST(DisplayItemListTest, SingleDrawingItem) { |
| gfx::Rect layer_rect(100, 100); |
| SkPictureRecorder recorder; |
| skia::RefPtr<SkCanvas> canvas; |
| skia::RefPtr<SkPicture> picture; |
| SkPaint blue_paint; |
| blue_paint.setColor(SK_ColorBLUE); |
| SkPaint red_paint; |
| red_paint.setColor(SK_ColorRED); |
| unsigned char pixels[4 * 100 * 100] = {0}; |
| scoped_refptr<DisplayItemList> list = DisplayItemList::Create(); |
| |
| gfx::PointF offset(8.f, 9.f); |
| gfx::RectF recording_rect(offset, layer_rect.size()); |
| canvas = skia::SharePtr( |
| recorder.beginRecording(gfx::RectFToSkRect(recording_rect))); |
| canvas->translate(offset.x(), offset.y()); |
| canvas->drawRectCoords(0.f, 0.f, 60.f, 60.f, red_paint); |
| canvas->drawRectCoords(50.f, 50.f, 75.f, 75.f, blue_paint); |
| picture = skia::AdoptRef(recorder.endRecording()); |
| list->AppendItem(DrawingDisplayItem::Create(picture)); |
| DrawDisplayList(pixels, layer_rect, list); |
| |
| SkBitmap expected_bitmap; |
| unsigned char expected_pixels[4 * 100 * 100] = {0}; |
| SkImageInfo info = |
| SkImageInfo::MakeN32Premul(layer_rect.width(), layer_rect.height()); |
| expected_bitmap.installPixels(info, expected_pixels, info.minRowBytes()); |
| SkCanvas expected_canvas(expected_bitmap); |
| expected_canvas.clipRect(gfx::RectToSkRect(layer_rect)); |
| expected_canvas.drawRectCoords(0.f + offset.x(), 0.f + offset.y(), |
| 60.f + offset.x(), 60.f + offset.y(), |
| red_paint); |
| expected_canvas.drawRectCoords(50.f + offset.x(), 50.f + offset.y(), |
| 75.f + offset.x(), 75.f + offset.y(), |
| blue_paint); |
| |
| EXPECT_EQ(0, memcmp(pixels, expected_pixels, 4 * 100 * 100)); |
| } |
| |
| TEST(DisplayItemListTest, ClipItem) { |
| gfx::Rect layer_rect(100, 100); |
| SkPictureRecorder recorder; |
| skia::RefPtr<SkCanvas> canvas; |
| skia::RefPtr<SkPicture> picture; |
| SkPaint blue_paint; |
| blue_paint.setColor(SK_ColorBLUE); |
| SkPaint red_paint; |
| red_paint.setColor(SK_ColorRED); |
| unsigned char pixels[4 * 100 * 100] = {0}; |
| scoped_refptr<DisplayItemList> list = DisplayItemList::Create(); |
| |
| gfx::PointF first_offset(8.f, 9.f); |
| gfx::RectF first_recording_rect(first_offset, layer_rect.size()); |
| canvas = skia::SharePtr( |
| recorder.beginRecording(gfx::RectFToSkRect(first_recording_rect))); |
| canvas->translate(first_offset.x(), first_offset.y()); |
| canvas->drawRectCoords(0.f, 0.f, 60.f, 60.f, red_paint); |
| picture = skia::AdoptRef(recorder.endRecording()); |
| list->AppendItem(DrawingDisplayItem::Create(picture)); |
| |
| gfx::Rect clip_rect(60, 60, 10, 10); |
| list->AppendItem(ClipDisplayItem::Create(clip_rect, std::vector<SkRRect>())); |
| |
| gfx::PointF second_offset(2.f, 3.f); |
| gfx::RectF second_recording_rect(second_offset, layer_rect.size()); |
| canvas = skia::SharePtr( |
| recorder.beginRecording(gfx::RectFToSkRect(second_recording_rect))); |
| canvas->translate(second_offset.x(), second_offset.y()); |
| canvas->drawRectCoords(50.f, 50.f, 75.f, 75.f, blue_paint); |
| picture = skia::AdoptRef(recorder.endRecording()); |
| list->AppendItem(DrawingDisplayItem::Create(picture)); |
| |
| list->AppendItem(EndClipDisplayItem::Create()); |
| |
| DrawDisplayList(pixels, layer_rect, list); |
| |
| SkBitmap expected_bitmap; |
| unsigned char expected_pixels[4 * 100 * 100] = {0}; |
| SkImageInfo info = |
| SkImageInfo::MakeN32Premul(layer_rect.width(), layer_rect.height()); |
| expected_bitmap.installPixels(info, expected_pixels, info.minRowBytes()); |
| SkCanvas expected_canvas(expected_bitmap); |
| expected_canvas.clipRect(gfx::RectToSkRect(layer_rect)); |
| expected_canvas.drawRectCoords(0.f + first_offset.x(), 0.f + first_offset.y(), |
| 60.f + first_offset.x(), |
| 60.f + first_offset.y(), red_paint); |
| expected_canvas.clipRect(gfx::RectToSkRect(clip_rect)); |
| expected_canvas.drawRectCoords( |
| 50.f + second_offset.x(), 50.f + second_offset.y(), |
| 75.f + second_offset.x(), 75.f + second_offset.y(), blue_paint); |
| |
| EXPECT_EQ(0, memcmp(pixels, expected_pixels, 4 * 100 * 100)); |
| } |
| |
| TEST(DisplayItemListTest, TransformItem) { |
| gfx::Rect layer_rect(100, 100); |
| SkPictureRecorder recorder; |
| skia::RefPtr<SkCanvas> canvas; |
| skia::RefPtr<SkPicture> picture; |
| SkPaint blue_paint; |
| blue_paint.setColor(SK_ColorBLUE); |
| SkPaint red_paint; |
| red_paint.setColor(SK_ColorRED); |
| unsigned char pixels[4 * 100 * 100] = {0}; |
| scoped_refptr<DisplayItemList> list = DisplayItemList::Create(); |
| |
| gfx::PointF first_offset(8.f, 9.f); |
| gfx::RectF first_recording_rect(first_offset, layer_rect.size()); |
| canvas = skia::SharePtr( |
| recorder.beginRecording(gfx::RectFToSkRect(first_recording_rect))); |
| canvas->translate(first_offset.x(), first_offset.y()); |
| canvas->drawRectCoords(0.f, 0.f, 60.f, 60.f, red_paint); |
| picture = skia::AdoptRef(recorder.endRecording()); |
| list->AppendItem(DrawingDisplayItem::Create(picture)); |
| |
| gfx::Transform transform; |
| transform.Rotate(45.0); |
| list->AppendItem(TransformDisplayItem::Create(transform)); |
| |
| gfx::PointF second_offset(2.f, 3.f); |
| gfx::RectF second_recording_rect(second_offset, layer_rect.size()); |
| canvas = skia::SharePtr( |
| recorder.beginRecording(gfx::RectFToSkRect(second_recording_rect))); |
| canvas->translate(second_offset.x(), second_offset.y()); |
| canvas->drawRectCoords(50.f, 50.f, 75.f, 75.f, blue_paint); |
| picture = skia::AdoptRef(recorder.endRecording()); |
| list->AppendItem(DrawingDisplayItem::Create(picture)); |
| |
| list->AppendItem(EndTransformDisplayItem::Create()); |
| |
| DrawDisplayList(pixels, layer_rect, list); |
| |
| SkBitmap expected_bitmap; |
| unsigned char expected_pixels[4 * 100 * 100] = {0}; |
| SkImageInfo info = |
| SkImageInfo::MakeN32Premul(layer_rect.width(), layer_rect.height()); |
| expected_bitmap.installPixels(info, expected_pixels, info.minRowBytes()); |
| SkCanvas expected_canvas(expected_bitmap); |
| expected_canvas.clipRect(gfx::RectToSkRect(layer_rect)); |
| expected_canvas.drawRectCoords(0.f + first_offset.x(), 0.f + first_offset.y(), |
| 60.f + first_offset.x(), |
| 60.f + first_offset.y(), red_paint); |
| expected_canvas.setMatrix(transform.matrix()); |
| expected_canvas.drawRectCoords( |
| 50.f + second_offset.x(), 50.f + second_offset.y(), |
| 75.f + second_offset.x(), 75.f + second_offset.y(), blue_paint); |
| |
| EXPECT_EQ(0, memcmp(pixels, expected_pixels, 4 * 100 * 100)); |
| } |
| |
| TEST(DisplayItemList, FilterItem) { |
| gfx::Rect layer_rect(100, 100); |
| FilterOperations filters; |
| unsigned char pixels[4 * 100 * 100] = {0}; |
| scoped_refptr<DisplayItemList> list = DisplayItemList::Create(); |
| |
| SkBitmap source_bitmap; |
| source_bitmap.allocN32Pixels(50, 50); |
| SkCanvas source_canvas(source_bitmap); |
| source_canvas.clear(SkColorSetRGB(128, 128, 128)); |
| |
| // For most SkImageFilters, the |dst| bounds computed by computeFastBounds are |
| // dependent on the provided |src| bounds. This means, for example, that |
| // translating |src| results in a corresponding translation of |dst|. But this |
| // is not the case for all SkImageFilters; for some of them (e.g. |
| // SkBitmapSource), the computation of |dst| in computeFastBounds doesn't |
| // involve |src| at all. Incorrectly assuming such a relationship (e.g. by |
| // translating |dst| after it is computed by computeFastBounds, rather than |
| // translating |src| before it provided to computedFastBounds) can cause |
| // incorrect clipping of filter output. To test for this, we include an |
| // SkBitmapSource filter in |filters|. Here, |src| is |filter_bounds|, defined |
| // below. |
| skia::RefPtr<SkImageFilter> image_filter = |
| skia::AdoptRef(SkBitmapSource::Create(source_bitmap)); |
| filters.Append(FilterOperation::CreateReferenceFilter(image_filter)); |
| filters.Append(FilterOperation::CreateBrightnessFilter(0.5f)); |
| gfx::RectF filter_bounds(10.f, 10.f, 50.f, 50.f); |
| list->AppendItem(FilterDisplayItem::Create(filters, filter_bounds)); |
| list->AppendItem(EndFilterDisplayItem::Create()); |
| |
| DrawDisplayList(pixels, layer_rect, list); |
| |
| SkBitmap expected_bitmap; |
| unsigned char expected_pixels[4 * 100 * 100] = {0}; |
| SkPaint paint; |
| paint.setColor(SkColorSetRGB(64, 64, 64)); |
| SkImageInfo info = |
| SkImageInfo::MakeN32Premul(layer_rect.width(), layer_rect.height()); |
| expected_bitmap.installPixels(info, expected_pixels, info.minRowBytes()); |
| SkCanvas expected_canvas(expected_bitmap); |
| expected_canvas.drawRect(RectFToSkRect(filter_bounds), paint); |
| |
| EXPECT_EQ(0, memcmp(pixels, expected_pixels, 4 * 100 * 100)); |
| } |
| |
| } // namespace |
| } // namespace cc |