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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/clip_path_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/skia_conversions.h"
#include "third_party/skia/include/core/SkCanvas.h"
namespace cc {
class ImageSerializationProcessor;
ClipPathDisplayItem::ClipPathDisplayItem(const SkPath& clip_path,
SkRegion::Op clip_op,
bool antialias) {
SetNew(clip_path, clip_op, antialias);
}
ClipPathDisplayItem::ClipPathDisplayItem(const proto::DisplayItem& proto) {
DCHECK_EQ(proto::DisplayItem::Type_ClipPath, proto.type());
const proto::ClipPathDisplayItem& details = proto.clip_path_item();
SkRegion::Op clip_op = SkRegionOpFromProto(details.clip_op());
bool antialias = details.antialias();
SkPath clip_path;
if (details.has_clip_path()) {
size_t bytes_read = clip_path.readFromMemory(details.clip_path().data(),
details.clip_path().size());
DCHECK_EQ(details.clip_path().size(), bytes_read);
}
SetNew(clip_path, clip_op, antialias);
}
ClipPathDisplayItem::~ClipPathDisplayItem() {
}
void ClipPathDisplayItem::SetNew(const SkPath& clip_path,
SkRegion::Op clip_op,
bool antialias) {
clip_path_ = clip_path;
clip_op_ = clip_op;
antialias_ = antialias;
}
void ClipPathDisplayItem::ToProtobuf(
proto::DisplayItem* proto,
ImageSerializationProcessor* image_serialization_processor) const {
proto->set_type(proto::DisplayItem::Type_ClipPath);
proto::ClipPathDisplayItem* details = proto->mutable_clip_path_item();
details->set_clip_op(SkRegionOpToProto(clip_op_));
details->set_antialias(antialias_);
// Just use skia's serialization method for the SkPath for now.
size_t path_size = clip_path_.writeToMemory(nullptr);
if (path_size > 0) {
scoped_ptr<uint8_t[]> buffer(new uint8_t[path_size]);
clip_path_.writeToMemory(buffer.get());
details->set_clip_path(buffer.get(), path_size);
}
}
void ClipPathDisplayItem::Raster(SkCanvas* canvas,
const gfx::Rect& canvas_target_playback_rect,
SkPicture::AbortCallback* callback) const {
canvas->save();
canvas->clipPath(clip_path_, clip_op_, antialias_);
}
void ClipPathDisplayItem::AsValueInto(
const gfx::Rect& visual_rect,
base::trace_event::TracedValue* array) const {
array->AppendString(base::StringPrintf(
"ClipPathDisplayItem length: %d visualRect: [%s]",
clip_path_.countPoints(), visual_rect.ToString().c_str()));
}
size_t ClipPathDisplayItem::ExternalMemoryUsage() const {
// The size of SkPath's external storage is not currently accounted for (and
// may well be shared anyway).
return 0;
}
EndClipPathDisplayItem::EndClipPathDisplayItem() {}
EndClipPathDisplayItem::EndClipPathDisplayItem(
const proto::DisplayItem& proto) {
DCHECK_EQ(proto::DisplayItem::Type_EndClipPath, proto.type());
}
EndClipPathDisplayItem::~EndClipPathDisplayItem() {
}
void EndClipPathDisplayItem::ToProtobuf(
proto::DisplayItem* proto,
ImageSerializationProcessor* image_serialization_processor) const {
proto->set_type(proto::DisplayItem::Type_EndClipPath);
}
void EndClipPathDisplayItem::Raster(
SkCanvas* canvas,
const gfx::Rect& canvas_target_playback_rect,
SkPicture::AbortCallback* callback) const {
canvas->restore();
}
void EndClipPathDisplayItem::AsValueInto(
const gfx::Rect& visual_rect,
base::trace_event::TracedValue* array) const {
array->AppendString(
base::StringPrintf("EndClipPathDisplayItem visualRect: [%s]",
visual_rect.ToString().c_str()));
}
size_t EndClipPathDisplayItem::ExternalMemoryUsage() const {
return 0;
}
} // namespace cc
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