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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/graphics/paint/paint_chunk.h"
#include "base/memory/values_equivalent.h"
#include "third_party/blink/renderer/platform/graphics/paint/drawing_display_item.h"
#include "third_party/blink/renderer/platform/graphics/paint/paint_artifact.h"
#include "third_party/blink/renderer/platform/wtf/size_assertions.h"
#include "third_party/blink/renderer/platform/wtf/text/string_builder.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
namespace blink {
struct SameSizeAsPaintChunk {
wtf_size_t begin_index;
wtf_size_t end_index;
PaintChunk::Id id;
PaintChunk::BackgroundColorInfo background_color;
TraceablePropertyTreeState properties;
Member<HitTestData> hit_test_data;
Member<RegionCaptureData> region_capture_data;
Member<LayerSelectionData> layer_selection;
gfx::Rect bounds;
gfx::Rect drawable_bounds;
gfx::Rect rect_known_to_be_opaque;
uint8_t raster_effect_outset;
uint8_t hit_test_opaqueness;
bool b;
};
ASSERT_SIZE(PaintChunk, SameSizeAsPaintChunk);
bool PaintChunk::EqualsForUnderInvalidationChecking(
const PaintChunk& other) const {
return size() == other.size() && id == other.id &&
properties == other.properties && bounds == other.bounds &&
base::ValuesEquivalent(hit_test_data, other.hit_test_data) &&
base::ValuesEquivalent(region_capture_data,
other.region_capture_data) &&
drawable_bounds == other.drawable_bounds &&
raster_effect_outset == other.raster_effect_outset &&
hit_test_opaqueness == other.hit_test_opaqueness &&
effectively_invisible == other.effectively_invisible;
// Derived fields like rect_known_to_be_opaque are not checked because they
// are updated when we create the next chunk or release chunks. We ensure
// their correctness with unit tests and under-invalidation checking of
// display items.
}
size_t PaintChunk::MemoryUsageInBytes() const {
size_t total_size = sizeof(*this);
if (hit_test_data) {
total_size += sizeof(*hit_test_data);
total_size += hit_test_data->touch_action_rects.CapacityInBytes();
total_size += hit_test_data->wheel_event_rects.CapacityInBytes();
}
if (region_capture_data) {
total_size += sizeof(*region_capture_data);
}
if (layer_selection_data) {
total_size += sizeof(*layer_selection_data);
}
return total_size;
}
static String ToStringImpl(const PaintChunk& c,
const String& id_string,
bool concise) {
StringBuilder sb;
sb.AppendFormat("PaintChunk(%u-%u id=%s cacheable=%d bounds=%s from_cache=%d",
c.begin_index, c.end_index, id_string.Utf8().c_str(),
c.is_cacheable, c.bounds.ToString().c_str(),
c.is_moved_from_cached_subsequence);
if (!concise) {
sb.AppendFormat(
" props=(%s) rect_known_to_be_opaque=%s hit_test_opaqueness=%s "
"effectively_invisible=%d drawscontent=%d",
c.properties.ToString().Utf8().c_str(),
c.rect_known_to_be_opaque.ToString().c_str(),
cc::HitTestOpaquenessToString(c.hit_test_opaqueness),
c.effectively_invisible, c.DrawsContent());
if (c.hit_test_data) {
sb.Append(" hit_test_data=");
sb.Append(c.hit_test_data->ToString());
}
if (c.region_capture_data) {
sb.Append(" region_capture_data=");
sb.Append(c.region_capture_data->ToString());
}
}
sb.Append(')');
return sb.ToString();
}
String PaintChunk::ToString(bool concise) const {
return ToStringImpl(*this, id.ToString(), concise);
}
String PaintChunk::ToString(const PaintArtifact& paint_artifact,
bool concise) const {
return ToStringImpl(*this, id.ToString(paint_artifact), concise);
}
std::ostream& operator<<(std::ostream& os, const PaintChunk& chunk) {
return os << chunk.ToString().Utf8();
}
} // namespace blink
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