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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 "base/strings/stringprintf.h"
#include "base/trace_event/trace_event_argument.h"
#include "third_party/skia/include/core/SkCanvas.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 {
CompositingDisplayItem::CompositingDisplayItem() {
}
CompositingDisplayItem::~CompositingDisplayItem() {
}
void CompositingDisplayItem::SetNew(uint8_t alpha,
SkXfermode::Mode xfermode,
SkRect* bounds,
skia::RefPtr<SkColorFilter> cf) {
alpha_ = alpha;
xfermode_ = xfermode;
has_bounds_ = !!bounds;
if (bounds)
bounds_ = SkRect(*bounds);
color_filter_ = cf;
// TODO(pdr): Include color_filter's memory here.
size_t external_memory_usage = 0;
DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 1 /* op_count */,
external_memory_usage);
}
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());
canvas->saveLayer(has_bounds_ ? &bounds_ : nullptr, &paint);
}
void CompositingDisplayItem::AsValueInto(
base::trace_event::TracedValue* array) const {
array->AppendString(base::StringPrintf(
"CompositingDisplayItem alpha: %d, xfermode: %d", alpha_, xfermode_));
if (has_bounds_)
array->AppendString(base::StringPrintf(
", 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())));
}
EndCompositingDisplayItem::EndCompositingDisplayItem() {
DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 0 /* op_count */,
0 /* external_memory_usage */);
}
EndCompositingDisplayItem::~EndCompositingDisplayItem() {
}
void EndCompositingDisplayItem::Raster(
SkCanvas* canvas,
const gfx::Rect& canvas_target_playback_rect,
SkPicture::AbortCallback* callback) const {
canvas->restore();
}
void EndCompositingDisplayItem::AsValueInto(
base::trace_event::TracedValue* array) const {
array->AppendString("EndCompositingDisplayItem");
}
} // namespace cc
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