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// Copyright 2015 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 <vector>
#include "cc/base/region.h"
#include "cc/playback/display_list_raster_source.h"
#include "cc/test/fake_content_layer_client.h"
#include "cc/test/fake_display_list_recording_source.h"
#include "cc/test/skia_common.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cc {
namespace {
class DisplayListRecordingSourceTest : public testing::Test {
public:
void SetUp() override {}
};
TEST_F(DisplayListRecordingSourceTest, DiscardablePixelRefsWithTransform) {
gfx::Size grid_cell_size(128, 128);
gfx::Rect recorded_viewport(256, 256);
scoped_ptr<FakeDisplayListRecordingSource> recording_source =
FakeDisplayListRecordingSource::CreateFilledRecordingSource(
recorded_viewport.size());
recording_source->SetGridCellSize(grid_cell_size);
SkBitmap discardable_bitmap[2][2];
gfx::Transform identity_transform;
CreateBitmap(gfx::Size(32, 32), "discardable", &discardable_bitmap[0][0]);
// Translate transform is equivalent to moving using point.
gfx::Transform translate_transform;
translate_transform.Translate(0, 130);
CreateBitmap(gfx::Size(32, 32), "discardable", &discardable_bitmap[1][0]);
// This moves the bitmap to center of viewport and rotate, this would make
// this bitmap in all four tile grids.
gfx::Transform rotate_transform;
rotate_transform.Translate(112, 112);
rotate_transform.Rotate(45);
CreateBitmap(gfx::Size(32, 32), "discardable", &discardable_bitmap[1][1]);
gfx::RectF rect(0, 0, 32, 32);
gfx::RectF translate_rect = rect;
translate_transform.TransformRect(&translate_rect);
gfx::RectF rotate_rect = rect;
rotate_transform.TransformRect(&rotate_rect);
recording_source->add_draw_bitmap_with_transform(discardable_bitmap[0][0],
identity_transform);
recording_source->add_draw_bitmap_with_transform(discardable_bitmap[1][0],
translate_transform);
recording_source->add_draw_bitmap_with_transform(discardable_bitmap[1][1],
rotate_transform);
recording_source->SetGatherPixelRefs(true);
recording_source->Rerecord();
bool can_use_lcd_text = true;
scoped_refptr<DisplayListRasterSource> raster_source =
DisplayListRasterSource::CreateFromDisplayListRecordingSource(
recording_source.get(), can_use_lcd_text);
// Tile sized iterators. These should find only one pixel ref.
{
std::vector<skia::PositionPixelRef> pixel_refs;
raster_source->GatherPixelRefs(gfx::Rect(0, 0, 128, 128), 1.0, &pixel_refs);
EXPECT_EQ(2u, pixel_refs.size());
EXPECT_TRUE(pixel_refs[0].pixel_ref == discardable_bitmap[0][0].pixelRef());
EXPECT_TRUE(pixel_refs[1].pixel_ref == discardable_bitmap[1][1].pixelRef());
EXPECT_EQ(rect.ToString(),
gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect).ToString());
}
{
std::vector<skia::PositionPixelRef> pixel_refs;
raster_source->GatherPixelRefs(gfx::Rect(0, 0, 256, 256), 2.0, &pixel_refs);
EXPECT_EQ(2u, pixel_refs.size());
EXPECT_TRUE(pixel_refs[0].pixel_ref == discardable_bitmap[0][0].pixelRef());
EXPECT_TRUE(pixel_refs[1].pixel_ref == discardable_bitmap[1][1].pixelRef());
EXPECT_EQ(rect.ToString(),
gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect).ToString());
}
{
std::vector<skia::PositionPixelRef> pixel_refs;
raster_source->GatherPixelRefs(gfx::Rect(0, 0, 64, 64), 0.5, &pixel_refs);
EXPECT_EQ(2u, pixel_refs.size());
EXPECT_TRUE(pixel_refs[0].pixel_ref == discardable_bitmap[0][0].pixelRef());
EXPECT_TRUE(pixel_refs[1].pixel_ref == discardable_bitmap[1][1].pixelRef());
EXPECT_EQ(rect.ToString(),
gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect).ToString());
}
// Shifted tile sized iterators. These should find only one pixel ref.
{
std::vector<skia::PositionPixelRef> pixel_refs;
raster_source->GatherPixelRefs(gfx::Rect(140, 140, 128, 128), 1.0,
&pixel_refs);
EXPECT_EQ(1u, pixel_refs.size());
EXPECT_TRUE(pixel_refs[0].pixel_ref == discardable_bitmap[1][1].pixelRef());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect).ToString());
}
{
std::vector<skia::PositionPixelRef> pixel_refs;
raster_source->GatherPixelRefs(gfx::Rect(280, 280, 256, 256), 2.0,
&pixel_refs);
EXPECT_EQ(1u, pixel_refs.size());
EXPECT_TRUE(pixel_refs[0].pixel_ref == discardable_bitmap[1][1].pixelRef());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect).ToString());
}
{
std::vector<skia::PositionPixelRef> pixel_refs;
raster_source->GatherPixelRefs(gfx::Rect(70, 70, 64, 64), 0.5, &pixel_refs);
EXPECT_EQ(1u, pixel_refs.size());
EXPECT_TRUE(pixel_refs[0].pixel_ref == discardable_bitmap[1][1].pixelRef());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect).ToString());
}
// The rotated bitmap would still be in the top right tile.
{
std::vector<skia::PositionPixelRef> pixel_refs;
raster_source->GatherPixelRefs(gfx::Rect(140, 0, 128, 128), 1.0,
&pixel_refs);
EXPECT_EQ(1u, pixel_refs.size());
EXPECT_TRUE(pixel_refs[0].pixel_ref == discardable_bitmap[1][1].pixelRef());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect).ToString());
}
// Layer sized iterators. These should find all 6 pixel refs, including 1
// pixel ref bitmap[0][0], 1 pixel ref for bitmap[1][0], and 4 pixel refs for
// bitmap[1][1].
{
std::vector<skia::PositionPixelRef> pixel_refs;
raster_source->GatherPixelRefs(gfx::Rect(0, 0, 256, 256), 1.0, &pixel_refs);
EXPECT_EQ(6u, pixel_refs.size());
// Top left tile with bitmap[0][0] and bitmap[1][1].
EXPECT_TRUE(pixel_refs[0].pixel_ref == discardable_bitmap[0][0].pixelRef());
EXPECT_TRUE(pixel_refs[1].pixel_ref == discardable_bitmap[1][1].pixelRef());
// Top right tile with bitmap[1][1].
EXPECT_TRUE(pixel_refs[2].pixel_ref == discardable_bitmap[1][1].pixelRef());
// Bottom left tile with bitmap[1][0] and bitmap[1][1].
EXPECT_TRUE(pixel_refs[3].pixel_ref == discardable_bitmap[1][0].pixelRef());
EXPECT_TRUE(pixel_refs[4].pixel_ref == discardable_bitmap[1][1].pixelRef());
// Bottom right tile with bitmap[1][1].
EXPECT_TRUE(pixel_refs[5].pixel_ref == discardable_bitmap[1][1].pixelRef());
EXPECT_EQ(rect.ToString(),
gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[2].pixel_ref_rect).ToString());
EXPECT_EQ(translate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[3].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[4].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[5].pixel_ref_rect).ToString());
}
{
std::vector<skia::PositionPixelRef> pixel_refs;
raster_source->GatherPixelRefs(gfx::Rect(0, 0, 512, 512), 2.0, &pixel_refs);
EXPECT_EQ(6u, pixel_refs.size());
// Top left tile with bitmap[0][0] and bitmap[1][1].
EXPECT_TRUE(pixel_refs[0].pixel_ref == discardable_bitmap[0][0].pixelRef());
EXPECT_TRUE(pixel_refs[1].pixel_ref == discardable_bitmap[1][1].pixelRef());
// Top right tile with bitmap[1][1].
EXPECT_TRUE(pixel_refs[2].pixel_ref == discardable_bitmap[1][1].pixelRef());
// Bottom left tile with bitmap[1][0] and bitmap[1][1].
EXPECT_TRUE(pixel_refs[3].pixel_ref == discardable_bitmap[1][0].pixelRef());
EXPECT_TRUE(pixel_refs[4].pixel_ref == discardable_bitmap[1][1].pixelRef());
// Bottom right tile with bitmap[1][1].
EXPECT_TRUE(pixel_refs[5].pixel_ref == discardable_bitmap[1][1].pixelRef());
EXPECT_EQ(rect.ToString(),
gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[2].pixel_ref_rect).ToString());
EXPECT_EQ(translate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[3].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[4].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[5].pixel_ref_rect).ToString());
}
{
std::vector<skia::PositionPixelRef> pixel_refs;
raster_source->GatherPixelRefs(gfx::Rect(0, 0, 128, 128), 0.5, &pixel_refs);
EXPECT_EQ(6u, pixel_refs.size());
// Top left tile with bitmap[0][0] and bitmap[1][1].
EXPECT_TRUE(pixel_refs[0].pixel_ref == discardable_bitmap[0][0].pixelRef());
EXPECT_TRUE(pixel_refs[1].pixel_ref == discardable_bitmap[1][1].pixelRef());
// Top right tile with bitmap[1][1].
EXPECT_TRUE(pixel_refs[2].pixel_ref == discardable_bitmap[1][1].pixelRef());
// Bottom left tile with bitmap[1][0] and bitmap[1][1].
EXPECT_TRUE(pixel_refs[3].pixel_ref == discardable_bitmap[1][0].pixelRef());
EXPECT_TRUE(pixel_refs[4].pixel_ref == discardable_bitmap[1][1].pixelRef());
// Bottom right tile with bitmap[1][1].
EXPECT_TRUE(pixel_refs[5].pixel_ref == discardable_bitmap[1][1].pixelRef());
EXPECT_EQ(rect.ToString(),
gfx::SkRectToRectF(pixel_refs[0].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[1].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[2].pixel_ref_rect).ToString());
EXPECT_EQ(translate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[3].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[4].pixel_ref_rect).ToString());
EXPECT_EQ(rotate_rect.ToString(),
gfx::SkRectToRectF(pixel_refs[5].pixel_ref_rect).ToString());
}
}
TEST_F(DisplayListRecordingSourceTest, ExposesEnoughNewAreaEmpty) {
gfx::Size layer_size(1000, 1000);
// Both empty means there is nothing to do.
EXPECT_FALSE(DisplayListRecordingSource::ExposesEnoughNewArea(
gfx::Rect(), gfx::Rect(), layer_size));
// Going from empty to non-empty means we must re-record because it could be
// the first frame after construction or Clear.
EXPECT_TRUE(DisplayListRecordingSource::ExposesEnoughNewArea(
gfx::Rect(), gfx::Rect(1, 1), layer_size));
// Going from non-empty to empty is not special-cased.
EXPECT_FALSE(DisplayListRecordingSource::ExposesEnoughNewArea(
gfx::Rect(1, 1), gfx::Rect(), layer_size));
}
TEST_F(DisplayListRecordingSourceTest, ExposesEnoughNewAreaNotBigEnough) {
gfx::Size layer_size(1000, 1000);
gfx::Rect current_recorded_viewport(100, 100, 100, 100);
EXPECT_FALSE(DisplayListRecordingSource::ExposesEnoughNewArea(
current_recorded_viewport, gfx::Rect(100, 100, 90, 90), layer_size));
EXPECT_FALSE(DisplayListRecordingSource::ExposesEnoughNewArea(
current_recorded_viewport, gfx::Rect(100, 100, 100, 100), layer_size));
EXPECT_FALSE(DisplayListRecordingSource::ExposesEnoughNewArea(
current_recorded_viewport, gfx::Rect(1, 1, 200, 200), layer_size));
}
TEST_F(DisplayListRecordingSourceTest,
ExposesEnoughNewAreaNotBigEnoughButNewAreaTouchesEdge) {
gfx::Size layer_size(500, 500);
gfx::Rect current_recorded_viewport(100, 100, 100, 100);
// Top edge.
EXPECT_TRUE(DisplayListRecordingSource::ExposesEnoughNewArea(
current_recorded_viewport, gfx::Rect(100, 0, 100, 200), layer_size));
// Left edge.
EXPECT_TRUE(DisplayListRecordingSource::ExposesEnoughNewArea(
current_recorded_viewport, gfx::Rect(0, 100, 200, 100), layer_size));
// Bottom edge.
EXPECT_TRUE(DisplayListRecordingSource::ExposesEnoughNewArea(
current_recorded_viewport, gfx::Rect(100, 100, 100, 400), layer_size));
// Right edge.
EXPECT_TRUE(DisplayListRecordingSource::ExposesEnoughNewArea(
current_recorded_viewport, gfx::Rect(100, 100, 400, 100), layer_size));
}
// Verifies that having a current viewport that touches a layer edge does not
// force re-recording.
TEST_F(DisplayListRecordingSourceTest,
ExposesEnoughNewAreaCurrentViewportTouchesEdge) {
gfx::Size layer_size(500, 500);
gfx::Rect potential_new_viewport(100, 100, 300, 300);
// Top edge.
EXPECT_FALSE(DisplayListRecordingSource::ExposesEnoughNewArea(
gfx::Rect(100, 0, 100, 100), potential_new_viewport, layer_size));
// Left edge.
EXPECT_FALSE(DisplayListRecordingSource::ExposesEnoughNewArea(
gfx::Rect(0, 100, 100, 100), potential_new_viewport, layer_size));
// Bottom edge.
EXPECT_FALSE(DisplayListRecordingSource::ExposesEnoughNewArea(
gfx::Rect(300, 400, 100, 100), potential_new_viewport, layer_size));
// Right edge.
EXPECT_FALSE(DisplayListRecordingSource::ExposesEnoughNewArea(
gfx::Rect(400, 300, 100, 100), potential_new_viewport, layer_size));
}
TEST_F(DisplayListRecordingSourceTest, ExposesEnoughNewAreaScrollScenarios) {
gfx::Size layer_size(1000, 1000);
gfx::Rect current_recorded_viewport(100, 100, 100, 100);
gfx::Rect new_recorded_viewport(current_recorded_viewport);
new_recorded_viewport.Offset(512, 0);
EXPECT_FALSE(DisplayListRecordingSource::ExposesEnoughNewArea(
current_recorded_viewport, new_recorded_viewport, layer_size));
new_recorded_viewport.Offset(0, 512);
EXPECT_FALSE(DisplayListRecordingSource::ExposesEnoughNewArea(
current_recorded_viewport, new_recorded_viewport, layer_size));
new_recorded_viewport.Offset(1, 0);
EXPECT_TRUE(DisplayListRecordingSource::ExposesEnoughNewArea(
current_recorded_viewport, new_recorded_viewport, layer_size));
new_recorded_viewport.Offset(-1, 1);
EXPECT_TRUE(DisplayListRecordingSource::ExposesEnoughNewArea(
current_recorded_viewport, new_recorded_viewport, layer_size));
}
// Verifies that UpdateAndExpandInvalidation calls ExposesEnoughNewArea with the
// right arguments.
TEST_F(DisplayListRecordingSourceTest,
ExposesEnoughNewAreaCalledWithCorrectArguments) {
gfx::Size grid_cell_size(128, 128);
DisplayListRecordingSource recording_source(grid_cell_size);
FakeContentLayerClient client;
Region invalidation;
gfx::Size layer_size(9000, 9000);
gfx::Rect visible_rect(0, 0, 256, 256);
recording_source.UpdateAndExpandInvalidation(
&client, &invalidation, layer_size, visible_rect, 0,
RecordingSource::RECORD_NORMALLY);
EXPECT_EQ(gfx::Rect(0, 0, 8256, 8256), recording_source.recorded_viewport());
visible_rect.Offset(0, 512);
recording_source.UpdateAndExpandInvalidation(
&client, &invalidation, layer_size, visible_rect, 0,
RecordingSource::RECORD_NORMALLY);
EXPECT_EQ(gfx::Rect(0, 0, 8256, 8256), recording_source.recorded_viewport());
// Move past the threshold for enough exposed new area.
visible_rect.Offset(0, 1);
recording_source.UpdateAndExpandInvalidation(
&client, &invalidation, layer_size, visible_rect, 0,
RecordingSource::RECORD_NORMALLY);
EXPECT_EQ(gfx::Rect(0, 0, 8256, 8769), recording_source.recorded_viewport());
// Make the bottom of the potential new recorded viewport coincide with the
// layer's bottom edge.
visible_rect.Offset(0, 231);
recording_source.UpdateAndExpandInvalidation(
&client, &invalidation, layer_size, visible_rect, 0,
RecordingSource::RECORD_NORMALLY);
EXPECT_EQ(gfx::Rect(0, 0, 8256, 9000), recording_source.recorded_viewport());
}
} // namespace
} // namespace cc
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