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// Copyright 2014 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_display_item.h"
#include <string>
#include "base/strings/stringprintf.h"
#include "base/trace_event/trace_event_argument.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "ui/gfx/skia_util.h"
namespace cc {
ClipDisplayItem::ClipDisplayItem() {
}
ClipDisplayItem::~ClipDisplayItem() {
}
void ClipDisplayItem::SetNew(gfx::Rect clip_rect,
const std::vector<SkRRect>& rounded_clip_rects) {
clip_rect_ = clip_rect;
rounded_clip_rects_ = rounded_clip_rects;
size_t external_memory_usage =
rounded_clip_rects_.capacity() * sizeof(rounded_clip_rects_[0]);
DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 1 /* op_count */,
external_memory_usage);
}
void ClipDisplayItem::Raster(SkCanvas* canvas,
const gfx::Rect& canvas_target_playback_rect,
SkPicture::AbortCallback* callback) const {
canvas->save();
canvas->clipRect(SkRect::MakeXYWH(clip_rect_.x(), clip_rect_.y(),
clip_rect_.width(), clip_rect_.height()));
for (size_t i = 0; i < rounded_clip_rects_.size(); ++i) {
if (rounded_clip_rects_[i].isRect()) {
canvas->clipRect(rounded_clip_rects_[i].rect());
} else {
bool antialiased = true;
canvas->clipRRect(rounded_clip_rects_[i], SkRegion::kIntersect_Op,
antialiased);
}
}
}
void ClipDisplayItem::AsValueInto(base::trace_event::TracedValue* array) const {
std::string value = base::StringPrintf("ClipDisplayItem rect: [%s]",
clip_rect_.ToString().c_str());
for (const SkRRect& rounded_rect : rounded_clip_rects_) {
base::StringAppendF(
&value, " rounded_rect: [rect: [%s]",
gfx::SkRectToRectF(rounded_rect.rect()).ToString().c_str());
base::StringAppendF(&value, " radii: [");
SkVector upper_left_radius = rounded_rect.radii(SkRRect::kUpperLeft_Corner);
base::StringAppendF(&value, "[%f,%f],", upper_left_radius.x(),
upper_left_radius.y());
SkVector upper_right_radius =
rounded_rect.radii(SkRRect::kUpperRight_Corner);
base::StringAppendF(&value, " [%f,%f],", upper_right_radius.x(),
upper_right_radius.y());
SkVector lower_right_radius =
rounded_rect.radii(SkRRect::kLowerRight_Corner);
base::StringAppendF(&value, " [%f,%f],", lower_right_radius.x(),
lower_right_radius.y());
SkVector lower_left_radius = rounded_rect.radii(SkRRect::kLowerLeft_Corner);
base::StringAppendF(&value, " [%f,%f]]", lower_left_radius.x(),
lower_left_radius.y());
}
array->AppendString(value);
}
EndClipDisplayItem::EndClipDisplayItem() {
DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 0 /* op_count */,
0 /* external_memory_usage */);
}
EndClipDisplayItem::~EndClipDisplayItem() {
}
void EndClipDisplayItem::Raster(SkCanvas* canvas,
const gfx::Rect& canvas_target_playback_rect,
SkPicture::AbortCallback* callback) const {
canvas->restore();
}
void EndClipDisplayItem::AsValueInto(
base::trace_event::TracedValue* array) const {
array->AppendString("EndClipDisplayItem");
}
} // namespace cc
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