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display_list_unittests.cc
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display_list_unittests.cc
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// Copyright 2013 The Flutter 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 <memory>
#include <string>
#include <unordered_set>
#include <utility>
#include <vector>
#include "flutter/display_list/display_list.h"
#include "flutter/display_list/dl_blend_mode.h"
#include "flutter/display_list/dl_builder.h"
#include "flutter/display_list/dl_paint.h"
#include "flutter/display_list/geometry/dl_rtree.h"
#include "flutter/display_list/skia/dl_sk_dispatcher.h"
#include "flutter/display_list/testing/dl_test_snippets.h"
#include "flutter/display_list/utils/dl_receiver_utils.h"
#include "flutter/fml/logging.h"
#include "flutter/fml/math.h"
#include "flutter/testing/display_list_testing.h"
#include "flutter/testing/testing.h"
#include "third_party/skia/include/core/SkPictureRecorder.h"
#include "third_party/skia/include/core/SkSurface.h"
namespace flutter {
DlOpReceiver& DisplayListBuilderTestingAccessor(DisplayListBuilder& builder) {
return builder.asReceiver();
}
DlPaint DisplayListBuilderTestingAttributes(DisplayListBuilder& builder) {
return builder.CurrentAttributes();
}
namespace testing {
static std::vector<testing::DisplayListInvocationGroup> allGroups =
CreateAllGroups();
using ClipOp = DlCanvas::ClipOp;
using PointMode = DlCanvas::PointMode;
template <typename BaseT>
class DisplayListTestBase : public BaseT {
public:
DisplayListTestBase() = default;
static DlOpReceiver& ToReceiver(DisplayListBuilder& builder) {
return DisplayListBuilderTestingAccessor(builder);
}
static sk_sp<DisplayList> Build(DisplayListInvocation& invocation) {
DisplayListBuilder builder;
invocation.Invoke(ToReceiver(builder));
return builder.Build();
}
static sk_sp<DisplayList> Build(size_t g_index, size_t v_index) {
DisplayListBuilder builder;
DlOpReceiver& receiver =
DisplayListTestBase<::testing::Test>::ToReceiver(builder);
unsigned int op_count = 0;
size_t byte_count = 0;
for (size_t i = 0; i < allGroups.size(); i++) {
DisplayListInvocationGroup& group = allGroups[i];
size_t j = (i == g_index ? v_index : 0);
if (j >= group.variants.size()) {
continue;
}
DisplayListInvocation& invocation = group.variants[j];
op_count += invocation.op_count();
byte_count += invocation.raw_byte_count();
invocation.invoker(receiver);
}
sk_sp<DisplayList> dl = builder.Build();
std::string name;
if (g_index >= allGroups.size()) {
name = "Default";
} else {
name = allGroups[g_index].op_name;
if (v_index >= allGroups[g_index].variants.size()) {
name += " skipped";
} else {
name += " variant " + std::to_string(v_index + 1);
}
}
EXPECT_EQ(dl->op_count(false), op_count) << name;
EXPECT_EQ(dl->bytes(false), byte_count + sizeof(DisplayList)) << name;
return dl;
}
static void check_defaults(
DisplayListBuilder& builder,
const SkRect& cull_rect = DisplayListBuilder::kMaxCullRect) {
DlPaint builder_paint = DisplayListBuilderTestingAttributes(builder);
DlPaint defaults;
EXPECT_EQ(builder_paint.isAntiAlias(), defaults.isAntiAlias());
EXPECT_EQ(builder_paint.isDither(), defaults.isDither());
EXPECT_EQ(builder_paint.isInvertColors(), defaults.isInvertColors());
EXPECT_EQ(builder_paint.getColor(), defaults.getColor());
EXPECT_EQ(builder_paint.getBlendMode(), defaults.getBlendMode());
EXPECT_EQ(builder_paint.getDrawStyle(), defaults.getDrawStyle());
EXPECT_EQ(builder_paint.getStrokeWidth(), defaults.getStrokeWidth());
EXPECT_EQ(builder_paint.getStrokeMiter(), defaults.getStrokeMiter());
EXPECT_EQ(builder_paint.getStrokeCap(), defaults.getStrokeCap());
EXPECT_EQ(builder_paint.getStrokeJoin(), defaults.getStrokeJoin());
EXPECT_EQ(builder_paint.getColorSource(), defaults.getColorSource());
EXPECT_EQ(builder_paint.getColorFilter(), defaults.getColorFilter());
EXPECT_EQ(builder_paint.getImageFilter(), defaults.getImageFilter());
EXPECT_EQ(builder_paint.getMaskFilter(), defaults.getMaskFilter());
EXPECT_EQ(builder_paint.getPathEffect(), defaults.getPathEffect());
EXPECT_EQ(builder_paint, defaults);
EXPECT_TRUE(builder_paint.isDefault());
EXPECT_EQ(builder.GetTransform(), SkMatrix());
EXPECT_EQ(builder.GetTransformFullPerspective(), SkM44());
EXPECT_EQ(builder.GetLocalClipBounds(), cull_rect);
EXPECT_EQ(builder.GetDestinationClipBounds(), cull_rect);
EXPECT_EQ(builder.GetSaveCount(), 1);
}
private:
FML_DISALLOW_COPY_AND_ASSIGN(DisplayListTestBase);
};
using DisplayListTest = DisplayListTestBase<::testing::Test>;
TEST_F(DisplayListTest, Defaults) {
DisplayListBuilder builder;
check_defaults(builder);
}
TEST_F(DisplayListTest, EmptyBuild) {
DisplayListBuilder builder;
auto dl = builder.Build();
EXPECT_EQ(dl->op_count(), 0u);
EXPECT_EQ(dl->bytes(), sizeof(DisplayList));
}
TEST_F(DisplayListTest, EmptyRebuild) {
DisplayListBuilder builder;
auto dl1 = builder.Build();
auto dl2 = builder.Build();
auto dl3 = builder.Build();
ASSERT_TRUE(dl1->Equals(dl2));
ASSERT_TRUE(dl2->Equals(dl3));
}
TEST_F(DisplayListTest, BuilderCanBeReused) {
DisplayListBuilder builder(kTestBounds);
builder.DrawRect(kTestBounds, DlPaint());
auto dl = builder.Build();
builder.DrawRect(kTestBounds, DlPaint());
auto dl2 = builder.Build();
ASSERT_TRUE(dl->Equals(dl2));
}
TEST_F(DisplayListTest, SaveRestoreRestoresTransform) {
SkRect cull_rect = SkRect::MakeLTRB(-10.0f, -10.0f, 500.0f, 500.0f);
DisplayListBuilder builder(cull_rect);
builder.Save();
builder.Translate(10.0f, 10.0f);
builder.Restore();
check_defaults(builder, cull_rect);
builder.Save();
builder.Scale(10.0f, 10.0f);
builder.Restore();
check_defaults(builder, cull_rect);
builder.Save();
builder.Skew(0.1f, 0.1f);
builder.Restore();
check_defaults(builder, cull_rect);
builder.Save();
builder.Rotate(45.0f);
builder.Restore();
check_defaults(builder, cull_rect);
builder.Save();
builder.Transform(SkMatrix::Scale(10.0f, 10.0f));
builder.Restore();
check_defaults(builder, cull_rect);
builder.Save();
builder.Transform2DAffine(1.0f, 0.0f, 12.0f, //
0.0f, 1.0f, 35.0f);
builder.Restore();
check_defaults(builder, cull_rect);
builder.Save();
builder.Transform(SkM44(SkMatrix::Scale(10.0f, 10.0f)));
builder.Restore();
check_defaults(builder, cull_rect);
builder.Save();
builder.TransformFullPerspective(1.0f, 0.0f, 0.0f, 12.0f, //
0.0f, 1.0f, 0.0f, 35.0f, //
0.0f, 0.0f, 1.0f, 5.0f, //
0.0f, 0.0f, 0.0f, 1.0f);
builder.Restore();
check_defaults(builder, cull_rect);
}
TEST_F(DisplayListTest, BuildRestoresTransform) {
SkRect cull_rect = SkRect::MakeLTRB(-10.0f, -10.0f, 500.0f, 500.0f);
DisplayListBuilder builder(cull_rect);
builder.Translate(10.0f, 10.0f);
builder.Build();
check_defaults(builder, cull_rect);
builder.Scale(10.0f, 10.0f);
builder.Build();
check_defaults(builder, cull_rect);
builder.Skew(0.1f, 0.1f);
builder.Build();
check_defaults(builder, cull_rect);
builder.Rotate(45.0f);
builder.Build();
check_defaults(builder, cull_rect);
builder.Transform(SkMatrix::Scale(10.0f, 10.0f));
builder.Build();
check_defaults(builder, cull_rect);
builder.Transform2DAffine(1.0f, 0.0f, 12.0f, //
0.0f, 1.0f, 35.0f);
builder.Build();
check_defaults(builder, cull_rect);
builder.Transform(SkM44(SkMatrix::Scale(10.0f, 10.0f)));
builder.Build();
check_defaults(builder, cull_rect);
builder.TransformFullPerspective(1.0f, 0.0f, 0.0f, 12.0f, //
0.0f, 1.0f, 0.0f, 35.0f, //
0.0f, 0.0f, 1.0f, 5.0f, //
0.0f, 0.0f, 0.0f, 1.0f);
builder.Build();
check_defaults(builder, cull_rect);
}
TEST_F(DisplayListTest, SaveRestoreRestoresClip) {
SkRect cull_rect = SkRect::MakeLTRB(-10.0f, -10.0f, 500.0f, 500.0f);
DisplayListBuilder builder(cull_rect);
builder.Save();
builder.ClipRect({0.0f, 0.0f, 10.0f, 10.0f});
builder.Restore();
check_defaults(builder, cull_rect);
builder.Save();
builder.ClipRRect(SkRRect::MakeRectXY({0.0f, 0.0f, 5.0f, 5.0f}, 2.0f, 2.0f));
builder.Restore();
check_defaults(builder, cull_rect);
builder.Save();
builder.ClipPath(SkPath().addOval({0.0f, 0.0f, 10.0f, 10.0f}));
builder.Restore();
check_defaults(builder, cull_rect);
}
TEST_F(DisplayListTest, BuildRestoresClip) {
SkRect cull_rect = SkRect::MakeLTRB(-10.0f, -10.0f, 500.0f, 500.0f);
DisplayListBuilder builder(cull_rect);
builder.ClipRect({0.0f, 0.0f, 10.0f, 10.0f});
builder.Build();
check_defaults(builder, cull_rect);
builder.ClipRRect(SkRRect::MakeRectXY({0.0f, 0.0f, 5.0f, 5.0f}, 2.0f, 2.0f));
builder.Build();
check_defaults(builder, cull_rect);
builder.ClipPath(SkPath().addOval({0.0f, 0.0f, 10.0f, 10.0f}));
builder.Build();
check_defaults(builder, cull_rect);
}
TEST_F(DisplayListTest, BuildRestoresAttributes) {
SkRect cull_rect = SkRect::MakeLTRB(-10.0f, -10.0f, 500.0f, 500.0f);
DisplayListBuilder builder(cull_rect);
DlOpReceiver& receiver = ToReceiver(builder);
receiver.setAntiAlias(true);
builder.Build();
check_defaults(builder, cull_rect);
receiver.setDither(true);
builder.Build();
check_defaults(builder, cull_rect);
receiver.setInvertColors(true);
builder.Build();
check_defaults(builder, cull_rect);
receiver.setColor(DlColor::kRed());
builder.Build();
check_defaults(builder, cull_rect);
receiver.setBlendMode(DlBlendMode::kColorBurn);
builder.Build();
check_defaults(builder, cull_rect);
receiver.setDrawStyle(DlDrawStyle::kStrokeAndFill);
builder.Build();
check_defaults(builder, cull_rect);
receiver.setStrokeWidth(300.0f);
builder.Build();
check_defaults(builder, cull_rect);
receiver.setStrokeMiter(300.0f);
builder.Build();
check_defaults(builder, cull_rect);
receiver.setStrokeCap(DlStrokeCap::kRound);
builder.Build();
check_defaults(builder, cull_rect);
receiver.setStrokeJoin(DlStrokeJoin::kRound);
builder.Build();
check_defaults(builder, cull_rect);
receiver.setColorSource(&kTestSource1);
builder.Build();
check_defaults(builder, cull_rect);
receiver.setColorFilter(&kTestMatrixColorFilter1);
builder.Build();
check_defaults(builder, cull_rect);
receiver.setImageFilter(&kTestBlurImageFilter1);
builder.Build();
check_defaults(builder, cull_rect);
receiver.setMaskFilter(&kTestMaskFilter1);
builder.Build();
check_defaults(builder, cull_rect);
receiver.setPathEffect(kTestPathEffect1.get());
builder.Build();
check_defaults(builder, cull_rect);
}
TEST_F(DisplayListTest, BuilderBoundsTransformComparedToSkia) {
const SkRect frame_rect = SkRect::MakeLTRB(10, 10, 100, 100);
DisplayListBuilder builder(frame_rect);
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(frame_rect);
ASSERT_EQ(builder.GetDestinationClipBounds(),
SkRect::Make(canvas->getDeviceClipBounds()));
ASSERT_EQ(builder.GetLocalClipBounds().makeOutset(1, 1),
canvas->getLocalClipBounds());
ASSERT_EQ(builder.GetTransform(), canvas->getTotalMatrix());
}
TEST_F(DisplayListTest, BuilderInitialClipBounds) {
SkRect cull_rect = SkRect::MakeWH(100, 100);
SkRect clip_bounds = SkRect::MakeWH(100, 100);
DisplayListBuilder builder(cull_rect);
ASSERT_EQ(builder.GetDestinationClipBounds(), clip_bounds);
}
TEST_F(DisplayListTest, BuilderInitialClipBoundsNaN) {
SkRect cull_rect = SkRect::MakeWH(SK_ScalarNaN, SK_ScalarNaN);
SkRect clip_bounds = SkRect::MakeEmpty();
DisplayListBuilder builder(cull_rect);
ASSERT_EQ(builder.GetDestinationClipBounds(), clip_bounds);
}
TEST_F(DisplayListTest, BuilderClipBoundsAfterClipRect) {
SkRect cull_rect = SkRect::MakeWH(100, 100);
SkRect clip_rect = SkRect::MakeLTRB(10, 10, 20, 20);
SkRect clip_bounds = SkRect::MakeLTRB(10, 10, 20, 20);
DisplayListBuilder builder(cull_rect);
builder.ClipRect(clip_rect, ClipOp::kIntersect, false);
ASSERT_EQ(builder.GetDestinationClipBounds(), clip_bounds);
}
TEST_F(DisplayListTest, BuilderClipBoundsAfterClipRRect) {
SkRect cull_rect = SkRect::MakeWH(100, 100);
SkRect clip_rect = SkRect::MakeLTRB(10, 10, 20, 20);
SkRRect clip_rrect = SkRRect::MakeRectXY(clip_rect, 2, 2);
SkRect clip_bounds = SkRect::MakeLTRB(10, 10, 20, 20);
DisplayListBuilder builder(cull_rect);
builder.ClipRRect(clip_rrect, ClipOp::kIntersect, false);
ASSERT_EQ(builder.GetDestinationClipBounds(), clip_bounds);
}
TEST_F(DisplayListTest, BuilderClipBoundsAfterClipPath) {
SkRect cull_rect = SkRect::MakeWH(100, 100);
SkPath clip_path = SkPath().addRect(10, 10, 15, 15).addRect(15, 15, 20, 20);
SkRect clip_bounds = SkRect::MakeLTRB(10, 10, 20, 20);
DisplayListBuilder builder(cull_rect);
builder.ClipPath(clip_path, ClipOp::kIntersect, false);
ASSERT_EQ(builder.GetDestinationClipBounds(), clip_bounds);
}
TEST_F(DisplayListTest, BuilderInitialClipBoundsNonZero) {
SkRect cull_rect = SkRect::MakeLTRB(10, 10, 100, 100);
SkRect clip_bounds = SkRect::MakeLTRB(10, 10, 100, 100);
DisplayListBuilder builder(cull_rect);
ASSERT_EQ(builder.GetDestinationClipBounds(), clip_bounds);
}
TEST_F(DisplayListTest, SingleOpSizes) {
for (auto& group : allGroups) {
for (size_t i = 0; i < group.variants.size(); i++) {
auto& invocation = group.variants[i];
sk_sp<DisplayList> dl = Build(invocation);
auto desc = group.op_name + "(variant " + std::to_string(i + 1) + ")";
ASSERT_EQ(dl->op_count(false), invocation.op_count()) << desc;
ASSERT_EQ(dl->bytes(false), invocation.byte_count()) << desc;
}
}
}
TEST_F(DisplayListTest, SingleOpDisplayListsNotEqualEmpty) {
sk_sp<DisplayList> empty = DisplayListBuilder().Build();
for (auto& group : allGroups) {
for (size_t i = 0; i < group.variants.size(); i++) {
sk_sp<DisplayList> dl = Build(group.variants[i]);
auto desc =
group.op_name + "(variant " + std::to_string(i + 1) + " != empty)";
if (group.variants[i].is_empty()) {
ASSERT_TRUE(DisplayListsEQ_Verbose(dl, empty));
ASSERT_TRUE(empty->Equals(*dl)) << desc;
} else {
ASSERT_TRUE(DisplayListsNE_Verbose(dl, empty));
ASSERT_FALSE(empty->Equals(*dl)) << desc;
}
}
}
}
TEST_F(DisplayListTest, SingleOpDisplayListsRecapturedAreEqual) {
for (auto& group : allGroups) {
for (size_t i = 0; i < group.variants.size(); i++) {
sk_sp<DisplayList> dl = Build(group.variants[i]);
// Verify recapturing the replay of the display list is Equals()
// when dispatching directly from the DL to another builder
DisplayListBuilder copy_builder;
DlOpReceiver& r = ToReceiver(copy_builder);
dl->Dispatch(r);
sk_sp<DisplayList> copy = copy_builder.Build();
auto desc =
group.op_name + "(variant " + std::to_string(i + 1) + " == copy)";
ASSERT_EQ(copy->op_count(false), dl->op_count(false)) << desc;
ASSERT_EQ(copy->bytes(false), dl->bytes(false)) << desc;
ASSERT_EQ(copy->op_count(true), dl->op_count(true)) << desc;
ASSERT_EQ(copy->bytes(true), dl->bytes(true)) << desc;
ASSERT_EQ(copy->bounds(), dl->bounds()) << desc;
ASSERT_TRUE(copy->Equals(*dl)) << desc;
ASSERT_TRUE(dl->Equals(*copy)) << desc;
}
}
}
TEST_F(DisplayListTest, SingleOpDisplayListsCompareToEachOther) {
for (auto& group : allGroups) {
std::vector<sk_sp<DisplayList>> lists_a;
std::vector<sk_sp<DisplayList>> lists_b;
for (size_t i = 0; i < group.variants.size(); i++) {
lists_a.push_back(Build(group.variants[i]));
lists_b.push_back(Build(group.variants[i]));
}
for (size_t i = 0; i < lists_a.size(); i++) {
sk_sp<DisplayList> listA = lists_a[i];
for (size_t j = 0; j < lists_b.size(); j++) {
sk_sp<DisplayList> listB = lists_b[j];
auto desc = group.op_name + "(variant " + std::to_string(i + 1) +
" ==? variant " + std::to_string(j + 1) + ")";
if (i == j ||
(group.variants[i].is_empty() && group.variants[j].is_empty())) {
// They are the same variant, or both variants are NOPs
ASSERT_EQ(listA->op_count(false), listB->op_count(false)) << desc;
ASSERT_EQ(listA->bytes(false), listB->bytes(false)) << desc;
ASSERT_EQ(listA->op_count(true), listB->op_count(true)) << desc;
ASSERT_EQ(listA->bytes(true), listB->bytes(true)) << desc;
ASSERT_EQ(listA->bounds(), listB->bounds()) << desc;
ASSERT_TRUE(listA->Equals(*listB)) << desc;
ASSERT_TRUE(listB->Equals(*listA)) << desc;
} else {
// No assertion on op/byte counts or bounds
// they may or may not be equal between variants
ASSERT_FALSE(listA->Equals(*listB)) << desc;
ASSERT_FALSE(listB->Equals(*listA)) << desc;
}
}
}
}
}
TEST_F(DisplayListTest, SingleOpDisplayListsAreEqualWithOrWithoutRtree) {
for (auto& group : allGroups) {
for (size_t i = 0; i < group.variants.size(); i++) {
DisplayListBuilder builder1(/*prepare_rtree=*/false);
DisplayListBuilder builder2(/*prepare_rtree=*/true);
group.variants[i].invoker(ToReceiver(builder1));
group.variants[i].invoker(ToReceiver(builder2));
sk_sp<DisplayList> dl1 = builder1.Build();
sk_sp<DisplayList> dl2 = builder2.Build();
auto desc = group.op_name + "(variant " + std::to_string(i + 1) + " )";
ASSERT_EQ(dl1->op_count(false), dl2->op_count(false)) << desc;
ASSERT_EQ(dl1->bytes(false), dl2->bytes(false)) << desc;
ASSERT_EQ(dl1->op_count(true), dl2->op_count(true)) << desc;
ASSERT_EQ(dl1->bytes(true), dl2->bytes(true)) << desc;
ASSERT_EQ(dl1->bounds(), dl2->bounds()) << desc;
ASSERT_TRUE(DisplayListsEQ_Verbose(dl1, dl2)) << desc;
ASSERT_TRUE(DisplayListsEQ_Verbose(dl2, dl2)) << desc;
ASSERT_EQ(dl1->rtree().get(), nullptr) << desc;
ASSERT_NE(dl2->rtree().get(), nullptr) << desc;
}
}
}
TEST_F(DisplayListTest, FullRotationsAreNop) {
DisplayListBuilder builder;
DlOpReceiver& receiver = ToReceiver(builder);
receiver.rotate(0);
receiver.rotate(360);
receiver.rotate(720);
receiver.rotate(1080);
receiver.rotate(1440);
sk_sp<DisplayList> dl = builder.Build();
ASSERT_EQ(dl->bytes(false), sizeof(DisplayList));
ASSERT_EQ(dl->bytes(true), sizeof(DisplayList));
ASSERT_EQ(dl->op_count(false), 0u);
ASSERT_EQ(dl->op_count(true), 0u);
}
TEST_F(DisplayListTest, AllBlendModeNops) {
DisplayListBuilder builder;
DlOpReceiver& receiver = ToReceiver(builder);
receiver.setBlendMode(DlBlendMode::kSrcOver);
sk_sp<DisplayList> dl = builder.Build();
ASSERT_EQ(dl->bytes(false), sizeof(DisplayList));
ASSERT_EQ(dl->bytes(true), sizeof(DisplayList));
ASSERT_EQ(dl->op_count(false), 0u);
ASSERT_EQ(dl->op_count(true), 0u);
}
TEST_F(DisplayListTest, DisplayListsWithVaryingOpComparisons) {
sk_sp<DisplayList> default_dl = Build(allGroups.size(), 0);
ASSERT_TRUE(default_dl->Equals(*default_dl)) << "Default == itself";
for (size_t gi = 0; gi < allGroups.size(); gi++) {
DisplayListInvocationGroup& group = allGroups[gi];
sk_sp<DisplayList> missing_dl = Build(gi, group.variants.size());
auto desc = "[Group " + group.op_name + " omitted]";
ASSERT_TRUE(missing_dl->Equals(*missing_dl)) << desc << " == itself";
ASSERT_FALSE(missing_dl->Equals(*default_dl)) << desc << " != Default";
ASSERT_FALSE(default_dl->Equals(*missing_dl)) << "Default != " << desc;
for (size_t vi = 0; vi < group.variants.size(); vi++) {
auto desc = "[Group " + group.op_name + " variant " +
std::to_string(vi + 1) + "]";
sk_sp<DisplayList> variant_dl = Build(gi, vi);
ASSERT_TRUE(variant_dl->Equals(*variant_dl)) << desc << " == itself";
if (vi == 0) {
ASSERT_TRUE(variant_dl->Equals(*default_dl)) << desc << " == Default";
ASSERT_TRUE(default_dl->Equals(*variant_dl)) << "Default == " << desc;
} else {
ASSERT_FALSE(variant_dl->Equals(*default_dl)) << desc << " != Default";
ASSERT_FALSE(default_dl->Equals(*variant_dl)) << "Default != " << desc;
}
if (group.variants[vi].is_empty()) {
ASSERT_TRUE(variant_dl->Equals(*missing_dl)) << desc << " != omitted";
ASSERT_TRUE(missing_dl->Equals(*variant_dl)) << "omitted != " << desc;
} else {
ASSERT_FALSE(variant_dl->Equals(*missing_dl)) << desc << " != omitted";
ASSERT_FALSE(missing_dl->Equals(*variant_dl)) << "omitted != " << desc;
}
}
}
}
TEST_F(DisplayListTest, DisplayListSaveLayerBoundsWithAlphaFilter) {
SkRect build_bounds = SkRect::MakeLTRB(-100, -100, 200, 200);
SkRect save_bounds = SkRect::MakeWH(100, 100);
SkRect rect = SkRect::MakeLTRB(30, 30, 70, 70);
// clang-format off
const float color_matrix[] = {
0, 0, 0, 0, 0,
0, 1, 0, 0, 0,
0, 0, 1, 0, 0,
0, 0, 0, 1, 0,
};
// clang-format on
DlMatrixColorFilter base_color_filter(color_matrix);
// clang-format off
const float alpha_matrix[] = {
0, 0, 0, 0, 0,
0, 1, 0, 0, 0,
0, 0, 1, 0, 0,
0, 0, 0, 0, 1,
};
// clang-format on
DlMatrixColorFilter alpha_color_filter(alpha_matrix);
sk_sp<SkColorFilter> sk_alpha_color_filter =
SkColorFilters::Matrix(alpha_matrix);
{
// No tricky stuff, just verifying drawing a rect produces rect bounds
DisplayListBuilder builder(build_bounds);
DlOpReceiver& receiver = ToReceiver(builder);
receiver.saveLayer(&save_bounds, SaveLayerOptions::kWithAttributes);
receiver.drawRect(rect);
receiver.restore();
sk_sp<DisplayList> display_list = builder.Build();
ASSERT_EQ(display_list->bounds(), rect);
}
{
// Now checking that a normal color filter still produces rect bounds
DisplayListBuilder builder(build_bounds);
DlOpReceiver& receiver = ToReceiver(builder);
receiver.setColorFilter(&base_color_filter);
receiver.saveLayer(&save_bounds, SaveLayerOptions::kWithAttributes);
receiver.setColorFilter(nullptr);
receiver.drawRect(rect);
receiver.restore();
sk_sp<DisplayList> display_list = builder.Build();
ASSERT_EQ(display_list->bounds(), rect);
}
{
// Now checking how SkPictureRecorder deals with a color filter
// that modifies alpha channels (save layer bounds are meaningless
// under those circumstances)
SkPictureRecorder recorder;
SkRTreeFactory rtree_factory;
SkCanvas* canvas = recorder.beginRecording(build_bounds, &rtree_factory);
SkPaint p1;
p1.setColorFilter(sk_alpha_color_filter);
canvas->saveLayer(save_bounds, &p1);
SkPaint p2;
canvas->drawRect(rect, p2);
canvas->restore();
sk_sp<SkPicture> picture = recorder.finishRecordingAsPicture();
ASSERT_EQ(picture->cullRect(), build_bounds);
}
{
// Now checking that DisplayList has the same behavior that we
// saw in the SkPictureRecorder example above - returning the
// cull rect of the DisplayListBuilder when it encounters a
// save layer that modifies an unbounded region
DisplayListBuilder builder(build_bounds);
DlOpReceiver& receiver = ToReceiver(builder);
receiver.setColorFilter(&alpha_color_filter);
receiver.saveLayer(&save_bounds, SaveLayerOptions::kWithAttributes);
receiver.setColorFilter(nullptr);
receiver.drawRect(rect);
receiver.restore();
sk_sp<DisplayList> display_list = builder.Build();
ASSERT_EQ(display_list->bounds(), build_bounds);
}
{
// Verifying that the save layer bounds are not relevant
// to the behavior in the previous example
DisplayListBuilder builder(build_bounds);
DlOpReceiver& receiver = ToReceiver(builder);
receiver.setColorFilter(&alpha_color_filter);
receiver.saveLayer(nullptr, SaveLayerOptions::kWithAttributes);
receiver.setColorFilter(nullptr);
receiver.drawRect(rect);
receiver.restore();
sk_sp<DisplayList> display_list = builder.Build();
ASSERT_EQ(display_list->bounds(), build_bounds);
}
{
// Making sure hiding a ColorFilter as an ImageFilter will
// generate the same behavior as setting it as a ColorFilter
DisplayListBuilder builder(build_bounds);
DlOpReceiver& receiver = ToReceiver(builder);
DlColorFilterImageFilter color_filter_image_filter(base_color_filter);
receiver.setImageFilter(&color_filter_image_filter);
receiver.saveLayer(&save_bounds, SaveLayerOptions::kWithAttributes);
receiver.setImageFilter(nullptr);
receiver.drawRect(rect);
receiver.restore();
sk_sp<DisplayList> display_list = builder.Build();
ASSERT_EQ(display_list->bounds(), rect);
}
{
// Making sure hiding a problematic ColorFilter as an ImageFilter
// will generate the same behavior as setting it as a ColorFilter
DisplayListBuilder builder(build_bounds);
DlOpReceiver& receiver = ToReceiver(builder);
DlColorFilterImageFilter color_filter_image_filter(alpha_color_filter);
receiver.setImageFilter(&color_filter_image_filter);
receiver.saveLayer(&save_bounds, SaveLayerOptions::kWithAttributes);
receiver.setImageFilter(nullptr);
receiver.drawRect(rect);
receiver.restore();
sk_sp<DisplayList> display_list = builder.Build();
ASSERT_EQ(display_list->bounds(), build_bounds);
}
{
// Same as above (ImageFilter hiding ColorFilter) with no save bounds
DisplayListBuilder builder(build_bounds);
DlOpReceiver& receiver = ToReceiver(builder);
DlColorFilterImageFilter color_filter_image_filter(alpha_color_filter);
receiver.setImageFilter(&color_filter_image_filter);
receiver.saveLayer(nullptr, SaveLayerOptions::kWithAttributes);
receiver.setImageFilter(nullptr);
receiver.drawRect(rect);
receiver.restore();
sk_sp<DisplayList> display_list = builder.Build();
ASSERT_EQ(display_list->bounds(), build_bounds);
}
{
// Testing behavior with an unboundable blend mode
DisplayListBuilder builder(build_bounds);
DlOpReceiver& receiver = ToReceiver(builder);
receiver.setBlendMode(DlBlendMode::kClear);
receiver.saveLayer(&save_bounds, SaveLayerOptions::kWithAttributes);
receiver.setBlendMode(DlBlendMode::kSrcOver);
receiver.drawRect(rect);
receiver.restore();
sk_sp<DisplayList> display_list = builder.Build();
ASSERT_EQ(display_list->bounds(), build_bounds);
}
{
// Same as previous with no save bounds
DisplayListBuilder builder(build_bounds);
DlOpReceiver& receiver = ToReceiver(builder);
receiver.setBlendMode(DlBlendMode::kClear);
receiver.saveLayer(nullptr, SaveLayerOptions::kWithAttributes);
receiver.setBlendMode(DlBlendMode::kSrcOver);
receiver.drawRect(rect);
receiver.restore();
sk_sp<DisplayList> display_list = builder.Build();
ASSERT_EQ(display_list->bounds(), build_bounds);
}
}
TEST_F(DisplayListTest, NestedOpCountMetricsSameAsSkPicture) {
SkPictureRecorder recorder;
recorder.beginRecording(SkRect::MakeWH(150, 100));
SkCanvas* canvas = recorder.getRecordingCanvas();
SkPaint paint;
for (int y = 10; y <= 60; y += 10) {
for (int x = 10; x <= 60; x += 10) {
paint.setColor(((x + y) % 20) == 10 ? SK_ColorRED : SK_ColorBLUE);
canvas->drawRect(SkRect::MakeXYWH(x, y, 80, 80), paint);
}
}
SkPictureRecorder outer_recorder;
outer_recorder.beginRecording(SkRect::MakeWH(150, 100));
canvas = outer_recorder.getRecordingCanvas();
canvas->drawPicture(recorder.finishRecordingAsPicture());
auto picture = outer_recorder.finishRecordingAsPicture();
ASSERT_EQ(picture->approximateOpCount(), 1);
ASSERT_EQ(picture->approximateOpCount(true), 36);
DisplayListBuilder builder(SkRect::MakeWH(150, 100));
DlOpReceiver& receiver = ToReceiver(builder);
for (int y = 10; y <= 60; y += 10) {
for (int x = 10; x <= 60; x += 10) {
receiver.setColor(((x + y) % 20) == 10 ? SK_ColorRED : SK_ColorBLUE);
receiver.drawRect(SkRect::MakeXYWH(x, y, 80, 80));
}
}
DisplayListBuilder outer_builder(SkRect::MakeWH(150, 100));
DlOpReceiver& outer_receiver = ToReceiver(outer_builder);
outer_receiver.drawDisplayList(builder.Build());
auto display_list = outer_builder.Build();
ASSERT_EQ(display_list->op_count(), 1u);
ASSERT_EQ(display_list->op_count(true), 36u);
ASSERT_EQ(picture->approximateOpCount(),
static_cast<int>(display_list->op_count()));
ASSERT_EQ(picture->approximateOpCount(true),
static_cast<int>(display_list->op_count(true)));
}
TEST_F(DisplayListTest, DisplayListFullPerspectiveTransformHandling) {
// SkM44 constructor takes row-major order
SkM44 sk_matrix = SkM44(
// clang-format off
1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11, 12,
13, 14, 15, 16
// clang-format on
);
{ // First test ==
DisplayListBuilder builder;
DlOpReceiver& receiver = ToReceiver(builder);
// receiver.transformFullPerspective takes row-major order
receiver.transformFullPerspective(
// clang-format off
1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11, 12,
13, 14, 15, 16
// clang-format on
);
sk_sp<DisplayList> display_list = builder.Build();
sk_sp<SkSurface> surface =
SkSurfaces::Raster(SkImageInfo::MakeN32Premul(10, 10));
SkCanvas* canvas = surface->getCanvas();
// We can't use DlSkCanvas.DrawDisplayList as that method protects
// the canvas against mutations from the display list being drawn.
auto dispatcher = DlSkCanvasDispatcher(surface->getCanvas());
display_list->Dispatch(dispatcher);
SkM44 dl_matrix = canvas->getLocalToDevice();
ASSERT_EQ(sk_matrix, dl_matrix);
}
{ // Next test !=
DisplayListBuilder builder;
DlOpReceiver& receiver = ToReceiver(builder);
// receiver.transformFullPerspective takes row-major order
receiver.transformFullPerspective(
// clang-format off
1, 5, 9, 13,
2, 6, 7, 11,
3, 7, 11, 15,
4, 8, 12, 16
// clang-format on
);
sk_sp<DisplayList> display_list = builder.Build();
sk_sp<SkSurface> surface =
SkSurfaces::Raster(SkImageInfo::MakeN32Premul(10, 10));
SkCanvas* canvas = surface->getCanvas();
// We can't use DlSkCanvas.DrawDisplayList as that method protects
// the canvas against mutations from the display list being drawn.
auto dispatcher = DlSkCanvasDispatcher(surface->getCanvas());
display_list->Dispatch(dispatcher);
SkM44 dl_matrix = canvas->getLocalToDevice();
ASSERT_NE(sk_matrix, dl_matrix);
}
}
TEST_F(DisplayListTest, DisplayListTransformResetHandling) {
DisplayListBuilder builder;
DlOpReceiver& receiver = ToReceiver(builder);
receiver.scale(20.0, 20.0);
receiver.transformReset();
auto display_list = builder.Build();
ASSERT_NE(display_list, nullptr);
sk_sp<SkSurface> surface =
SkSurfaces::Raster(SkImageInfo::MakeN32Premul(10, 10));
SkCanvas* canvas = surface->getCanvas();
// We can't use DlSkCanvas.DrawDisplayList as that method protects
// the canvas against mutations from the display list being drawn.
auto dispatcher = DlSkCanvasDispatcher(surface->getCanvas());
display_list->Dispatch(dispatcher);
ASSERT_TRUE(canvas->getTotalMatrix().isIdentity());
}
TEST_F(DisplayListTest, SingleOpsMightSupportGroupOpacityBlendMode) {
auto run_tests = [](const std::string& name,
void build(DlOpReceiver & receiver), bool expect_for_op,
bool expect_with_kSrc) {
{
// First test is the draw op, by itself
// (usually supports group opacity)
DisplayListBuilder builder;
DlOpReceiver& receiver = ToReceiver(builder);
build(receiver);
auto display_list = builder.Build();
EXPECT_EQ(display_list->can_apply_group_opacity(), expect_for_op)
<< "{" << std::endl
<< " " << name << std::endl
<< "}";
}
{
// Second test i the draw op with kSrc,
// (usually fails group opacity)
DisplayListBuilder builder;
DlOpReceiver& receiver = ToReceiver(builder);
receiver.setBlendMode(DlBlendMode::kSrc);
build(receiver);
auto display_list = builder.Build();
EXPECT_EQ(display_list->can_apply_group_opacity(), expect_with_kSrc)
<< "{" << std::endl
<< " receiver.setBlendMode(kSrc);" << std::endl
<< " " << name << std::endl
<< "}";
}
};
#define RUN_TESTS(body) \
run_tests( \
#body, [](DlOpReceiver& receiver) { body }, true, false)
#define RUN_TESTS2(body, expect) \
run_tests( \
#body, [](DlOpReceiver& receiver) { body }, expect, expect)
RUN_TESTS(receiver.drawPaint(););
RUN_TESTS2(receiver.drawColor(SK_ColorRED, DlBlendMode::kSrcOver);, true);
RUN_TESTS2(receiver.drawColor(SK_ColorRED, DlBlendMode::kSrc);, false);
RUN_TESTS(receiver.drawLine({0, 0}, {10, 10}););
RUN_TESTS(receiver.drawRect({0, 0, 10, 10}););
RUN_TESTS(receiver.drawOval({0, 0, 10, 10}););
RUN_TESTS(receiver.drawCircle({10, 10}, 5););
RUN_TESTS(receiver.drawRRect(SkRRect::MakeRectXY({0, 0, 10, 10}, 2, 2)););
RUN_TESTS(receiver.drawDRRect(SkRRect::MakeRectXY({0, 0, 10, 10}, 2, 2),
SkRRect::MakeRectXY({2, 2, 8, 8}, 2, 2)););
RUN_TESTS(receiver.drawPath(
SkPath().addOval({0, 0, 10, 10}).addOval({5, 5, 15, 15})););
RUN_TESTS(receiver.drawArc({0, 0, 10, 10}, 0, math::kPi, true););
RUN_TESTS2(
receiver.drawPoints(PointMode::kPoints, TestPointCount, TestPoints);
, false);
RUN_TESTS2(receiver.drawVertices(TestVertices1.get(), DlBlendMode::kSrc);
, false);
RUN_TESTS(receiver.drawImage(TestImage1, {0, 0}, kLinearSampling, true););
RUN_TESTS2(receiver.drawImage(TestImage1, {0, 0}, kLinearSampling, false);
, true);
RUN_TESTS(receiver.drawImageRect(TestImage1, {10, 10, 20, 20}, {0, 0, 10, 10},
kNearestSampling, true,
DlCanvas::SrcRectConstraint::kFast););
RUN_TESTS2(receiver.drawImageRect(TestImage1, {10, 10, 20, 20},
{0, 0, 10, 10}, kNearestSampling, false,
DlCanvas::SrcRectConstraint::kFast);
, true);
RUN_TESTS(receiver.drawImageNine(TestImage2, {20, 20, 30, 30}, {0, 0, 20, 20},
DlFilterMode::kLinear, true););
RUN_TESTS2(
receiver.drawImageNine(TestImage2, {20, 20, 30, 30}, {0, 0, 20, 20},
DlFilterMode::kLinear, false);
, true);
static SkRSXform xforms[] = {{1, 0, 0, 0}, {0, 1, 0, 0}};
static SkRect texs[] = {{10, 10, 20, 20}, {20, 20, 30, 30}};
RUN_TESTS2(
receiver.drawAtlas(TestImage1, xforms, texs, nullptr, 2,
DlBlendMode::kSrcIn, kNearestSampling, nullptr, true);
, false);
RUN_TESTS2(
receiver.drawAtlas(TestImage1, xforms, texs, nullptr, 2,
DlBlendMode::kSrcIn, kNearestSampling, nullptr, false);
, false);
EXPECT_TRUE(TestDisplayList1->can_apply_group_opacity());
RUN_TESTS2(receiver.drawDisplayList(TestDisplayList1);, true);
{
static DisplayListBuilder builder;
builder.DrawRect({0, 0, 10, 10}, DlPaint());
builder.DrawRect({5, 5, 15, 15}, DlPaint());
static auto display_list = builder.Build();
RUN_TESTS2(receiver.drawDisplayList(display_list);, false);
}
RUN_TESTS2(receiver.drawTextBlob(TestBlob1, 0, 0);, false);
RUN_TESTS2(receiver.drawShadow(kTestPath1, SK_ColorBLACK, 1.0, false, 1.0);
, false);
#undef RUN_TESTS2
#undef RUN_TESTS
}
TEST_F(DisplayListTest, OverlappingOpsDoNotSupportGroupOpacity) {
DisplayListBuilder builder;
DlOpReceiver& receiver = ToReceiver(builder);
for (int i = 0; i < 10; i++) {
receiver.drawRect(SkRect::MakeXYWH(i * 10, 0, 30, 30));
}
auto display_list = builder.Build();
EXPECT_FALSE(display_list->can_apply_group_opacity());
}
TEST_F(DisplayListTest, SaveLayerFalseSupportsGroupOpacityOverlappingChidren) {
DisplayListBuilder builder;
DlOpReceiver& receiver = ToReceiver(builder);
receiver.saveLayer(nullptr, SaveLayerOptions::kNoAttributes);
for (int i = 0; i < 10; i++) {
receiver.drawRect(SkRect::MakeXYWH(i * 10, 0, 30, 30));
}
receiver.restore();
auto display_list = builder.Build();
EXPECT_TRUE(display_list->can_apply_group_opacity());
}
TEST_F(DisplayListTest, SaveLayerTrueSupportsGroupOpacityOverlappingChidren) {
DisplayListBuilder builder;
DlOpReceiver& receiver = ToReceiver(builder);
receiver.saveLayer(nullptr, SaveLayerOptions::kWithAttributes);
for (int i = 0; i < 10; i++) {
receiver.drawRect(SkRect::MakeXYWH(i * 10, 0, 30, 30));