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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 "cc/playback/compositing_display_item.h"
#include <stddef.h>
#include <stdint.h>
#include "base/strings/stringprintf.h"
#include "base/trace_event/trace_event_argument.h"
#include "cc/proto/display_item.pb.h"
#include "cc/proto/gfx_conversions.h"
#include "cc/proto/skia_conversions.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "third_party/skia/include/core/SkData.h"
#include "third_party/skia/include/core/SkFlattenable.h"
#include "third_party/skia/include/core/SkFlattenableSerialization.h"
#include "third_party/skia/include/core/SkPaint.h"
#include "third_party/skia/include/core/SkXfermode.h"
#include "ui/gfx/skia_util.h"
namespace cc {
class ImageSerializationProcessor;
CompositingDisplayItem::CompositingDisplayItem(
uint8_t alpha,
SkXfermode::Mode xfermode,
SkRect* bounds,
skia::RefPtr<SkColorFilter> cf,
bool lcd_text_requires_opaque_layer) {
SetNew(alpha, xfermode, bounds, std::move(cf),
lcd_text_requires_opaque_layer);
}
CompositingDisplayItem::CompositingDisplayItem(
const proto::DisplayItem& proto) {
DCHECK_EQ(proto::DisplayItem::Type_Compositing, proto.type());
const proto::CompositingDisplayItem& details = proto.compositing_item();
uint8_t alpha = static_cast<uint8_t>(details.alpha());
SkXfermode::Mode xfermode = SkXfermodeModeFromProto(details.mode());
scoped_ptr<SkRect> bounds;
if (details.has_bounds()) {
bounds.reset(
new SkRect(gfx::RectFToSkRect(ProtoToRectF(details.bounds()))));
}
skia::RefPtr<SkColorFilter> filter;
if (details.has_color_filter()) {
SkFlattenable* flattenable = SkValidatingDeserializeFlattenable(
details.color_filter().c_str(), details.color_filter().size(),
SkColorFilter::GetFlattenableType());
filter = skia::AdoptRef(static_cast<SkColorFilter*>(flattenable));
}
bool lcd_text_requires_opaque_layer =
details.lcd_text_requires_opaque_layer();
SetNew(alpha, xfermode, bounds.get(), std::move(filter),
lcd_text_requires_opaque_layer);
}
CompositingDisplayItem::~CompositingDisplayItem() {
}
void CompositingDisplayItem::SetNew(uint8_t alpha,
SkXfermode::Mode xfermode,
SkRect* bounds,
skia::RefPtr<SkColorFilter> cf,
bool lcd_text_requires_opaque_layer) {
alpha_ = alpha;
xfermode_ = xfermode;
has_bounds_ = !!bounds;
if (bounds)
bounds_ = SkRect(*bounds);
color_filter_ = std::move(cf);
lcd_text_requires_opaque_layer_ = lcd_text_requires_opaque_layer;
}
void CompositingDisplayItem::ToProtobuf(
proto::DisplayItem* proto,
ImageSerializationProcessor* image_serialization_processor) const {
proto->set_type(proto::DisplayItem::Type_Compositing);
proto::CompositingDisplayItem* details = proto->mutable_compositing_item();
details->set_alpha(static_cast<uint32_t>(alpha_));
details->set_mode(SkXfermodeModeToProto(xfermode_));
if (has_bounds_)
RectFToProto(gfx::SkRectToRectF(bounds_), details->mutable_bounds());
if (color_filter_) {
skia::RefPtr<SkData> data =
skia::AdoptRef(SkValidatingSerializeFlattenable(color_filter_.get()));
if (data->size() > 0)
details->set_color_filter(data->data(), data->size());
}
details->set_lcd_text_requires_opaque_layer(lcd_text_requires_opaque_layer_);
}
void CompositingDisplayItem::Raster(
SkCanvas* canvas,
const gfx::Rect& canvas_target_playback_rect,
SkPicture::AbortCallback* callback) const {
SkPaint paint;
paint.setXfermodeMode(xfermode_);
paint.setAlpha(alpha_);
paint.setColorFilter(color_filter_.get());
const SkRect* bounds = has_bounds_ ? &bounds_ : nullptr;
if (lcd_text_requires_opaque_layer_)
canvas->saveLayer(bounds, &paint);
else
canvas->saveLayerPreserveLCDTextRequests(bounds, &paint);
}
void CompositingDisplayItem::AsValueInto(
const gfx::Rect& visual_rect,
base::trace_event::TracedValue* array) const {
std::string info = base::StringPrintf(
"CompositingDisplayItem alpha: %d, xfermode: %d, visualRect: [%s]",
alpha_, xfermode_, visual_rect.ToString().c_str());
if (has_bounds_) {
base::StringAppendF(
&info, ", bounds: [%f, %f, %f, %f]", static_cast<float>(bounds_.x()),
static_cast<float>(bounds_.y()), static_cast<float>(bounds_.width()),
static_cast<float>(bounds_.height()));
}
array->AppendString(info);
}
size_t CompositingDisplayItem::ExternalMemoryUsage() const {
// TODO(pdr): Include color_filter's memory here.
return 0;
}
EndCompositingDisplayItem::EndCompositingDisplayItem() {}
EndCompositingDisplayItem::EndCompositingDisplayItem(
const proto::DisplayItem& proto) {
DCHECK_EQ(proto::DisplayItem::Type_EndCompositing, proto.type());
}
EndCompositingDisplayItem::~EndCompositingDisplayItem() {
}
void EndCompositingDisplayItem::ToProtobuf(
proto::DisplayItem* proto,
ImageSerializationProcessor* image_serialization_processor) const {
proto->set_type(proto::DisplayItem::Type_EndCompositing);
}
void EndCompositingDisplayItem::Raster(
SkCanvas* canvas,
const gfx::Rect& canvas_target_playback_rect,
SkPicture::AbortCallback* callback) const {
canvas->restore();
}
void EndCompositingDisplayItem::AsValueInto(
const gfx::Rect& visual_rect,
base::trace_event::TracedValue* array) const {
array->AppendString(
base::StringPrintf("EndCompositingDisplayItem visualRect: [%s]",
visual_rect.ToString().c_str()));
}
size_t EndCompositingDisplayItem::ExternalMemoryUsage() const {
return 0;
}
} // namespace cc
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