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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/blink/web_display_item_list_impl.h"
#include <vector>
#include "cc/blink/web_filter_operations_impl.h"
#include "cc/playback/clip_display_item.h"
#include "cc/playback/clip_path_display_item.h"
#include "cc/playback/compositing_display_item.h"
#include "cc/playback/display_item_list_settings.h"
#include "cc/playback/drawing_display_item.h"
#include "cc/playback/filter_display_item.h"
#include "cc/playback/float_clip_display_item.h"
#include "cc/playback/transform_display_item.h"
#include "skia/ext/refptr.h"
#include "third_party/WebKit/public/platform/WebFloatRect.h"
#include "third_party/WebKit/public/platform/WebRect.h"
#include "third_party/skia/include/core/SkColorFilter.h"
#include "third_party/skia/include/core/SkPicture.h"
#include "third_party/skia/include/utils/SkMatrix44.h"
#include "ui/gfx/geometry/safe_integer_conversions.h"
#include "ui/gfx/transform.h"
namespace cc_blink {
namespace {
scoped_refptr<cc::DisplayItemList> CreateUncachedDisplayItemListForBlink() {
cc::DisplayItemListSettings settings;
settings.use_cached_picture = false;
return cc::DisplayItemList::CreateWithoutCachedPicture(settings);
}
} // namespace
WebDisplayItemListImpl::WebDisplayItemListImpl()
: display_item_list_(CreateUncachedDisplayItemListForBlink()) {
}
WebDisplayItemListImpl::WebDisplayItemListImpl(
cc::DisplayItemList* display_list)
: display_item_list_(display_list) {
}
void WebDisplayItemListImpl::appendDrawingItem(const SkPicture* picture) {
auto* item =
display_item_list_->CreateAndAppendItem<cc::DrawingDisplayItem>();
item->SetNew(skia::SharePtr(const_cast<SkPicture*>(picture)));
}
void WebDisplayItemListImpl::appendClipItem(
const blink::WebRect& clip_rect,
const blink::WebVector<SkRRect>& rounded_clip_rects) {
std::vector<SkRRect> rounded_rects;
for (size_t i = 0; i < rounded_clip_rects.size(); ++i) {
rounded_rects.push_back(rounded_clip_rects[i]);
}
auto* item = display_item_list_->CreateAndAppendItem<cc::ClipDisplayItem>();
item->SetNew(clip_rect, rounded_rects);
}
void WebDisplayItemListImpl::appendEndClipItem() {
display_item_list_->CreateAndAppendItem<cc::EndClipDisplayItem>();
}
void WebDisplayItemListImpl::appendClipPathItem(const SkPath& clip_path,
SkRegion::Op clip_op,
bool antialias) {
auto* item =
display_item_list_->CreateAndAppendItem<cc::ClipPathDisplayItem>();
item->SetNew(clip_path, clip_op, antialias);
}
void WebDisplayItemListImpl::appendEndClipPathItem() {
display_item_list_->CreateAndAppendItem<cc::EndClipPathDisplayItem>();
}
void WebDisplayItemListImpl::appendFloatClipItem(
const blink::WebFloatRect& clip_rect) {
auto* item =
display_item_list_->CreateAndAppendItem<cc::FloatClipDisplayItem>();
item->SetNew(clip_rect);
}
void WebDisplayItemListImpl::appendEndFloatClipItem() {
display_item_list_->CreateAndAppendItem<cc::EndFloatClipDisplayItem>();
}
void WebDisplayItemListImpl::appendTransformItem(const SkMatrix44& matrix) {
gfx::Transform transform;
transform.matrix() = matrix;
auto* item =
display_item_list_->CreateAndAppendItem<cc::TransformDisplayItem>();
item->SetNew(transform);
}
void WebDisplayItemListImpl::appendEndTransformItem() {
display_item_list_->CreateAndAppendItem<cc::EndTransformDisplayItem>();
}
void WebDisplayItemListImpl::appendCompositingItem(
float opacity,
SkXfermode::Mode xfermode,
SkRect* bounds,
SkColorFilter* color_filter) {
DCHECK_GE(opacity, 0.f);
DCHECK_LE(opacity, 1.f);
// TODO(ajuma): This should really be rounding instead of flooring the alpha
// value, but that breaks slimming paint reftests.
auto* item =
display_item_list_->CreateAndAppendItem<cc::CompositingDisplayItem>();
item->SetNew(static_cast<uint8_t>(gfx::ToFlooredInt(255 * opacity)), xfermode,
bounds, skia::SharePtr(color_filter));
}
void WebDisplayItemListImpl::appendEndCompositingItem() {
display_item_list_->CreateAndAppendItem<cc::EndCompositingDisplayItem>();
}
void WebDisplayItemListImpl::appendFilterItem(
const blink::WebFilterOperations& filters,
const blink::WebFloatRect& bounds) {
const WebFilterOperationsImpl& filters_impl =
static_cast<const WebFilterOperationsImpl&>(filters);
auto* item = display_item_list_->CreateAndAppendItem<cc::FilterDisplayItem>();
item->SetNew(filters_impl.AsFilterOperations(), bounds);
}
void WebDisplayItemListImpl::appendEndFilterItem() {
display_item_list_->CreateAndAppendItem<cc::EndFilterDisplayItem>();
}
void WebDisplayItemListImpl::appendScrollItem(
const blink::WebSize& scrollOffset,
ScrollContainerId) {
SkMatrix44 matrix;
matrix.setTranslate(-scrollOffset.width, -scrollOffset.height, 0);
appendTransformItem(matrix);
}
void WebDisplayItemListImpl::appendEndScrollItem() {
appendEndTransformItem();
}
WebDisplayItemListImpl::~WebDisplayItemListImpl() {
}
} // namespace cc_blink
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