cc/blink/web_display_item_list_impl.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/blink/web_display_item_list_impl.h"
   6
   7 #include <vector>
   8
   9 #include "cc/blink/web_blend_mode.h"
  10 #include "cc/blink/web_filter_operations_impl.h"
  11 #include "cc/resources/clip_display_item.h"
  12 #include "cc/resources/clip_path_display_item.h"
  13 #include "cc/resources/compositing_display_item.h"
  14 #include "cc/resources/drawing_display_item.h"
  15 #include "cc/resources/filter_display_item.h"
  16 #include "cc/resources/float_clip_display_item.h"
  17 #include "cc/resources/transform_display_item.h"
  18 #include "skia/ext/refptr.h"
  19 #include "third_party/WebKit/public/platform/WebFloatRect.h"
  20 #include "third_party/WebKit/public/platform/WebRect.h"
  21 #include "third_party/skia/include/core/SkColorFilter.h"
  22 #include "third_party/skia/include/core/SkImageFilter.h"
  23 #include "third_party/skia/include/core/SkPicture.h"
  24 #include "third_party/skia/include/utils/SkMatrix44.h"
  25 #include "ui/gfx/transform.h"
  26
  27 namespace cc_blink {
  28
  29 WebDisplayItemListImpl::WebDisplayItemListImpl()
  30     : display_item_list_(cc::DisplayItemList::Create()) {
  31 }
  32
  33 scoped_refptr<cc::DisplayItemList> WebDisplayItemListImpl::ToDisplayItemList() {
  34   return display_item_list_;
  35 }
  36
  37 void WebDisplayItemListImpl::appendDrawingItem(const SkPicture* picture) {
  38   display_item_list_->AppendItem(cc::DrawingDisplayItem::Create(
  39       skia::SharePtr(const_cast<SkPicture*>(picture))));
  40 }
  41
  42 void WebDisplayItemListImpl::appendClipItem(
  43     const blink::WebRect& clip_rect,
  44     const blink::WebVector<SkRRect>& rounded_clip_rects) {
  45   std::vector<SkRRect> rounded_rects;
  46   for (size_t i = 0; i < rounded_clip_rects.size(); ++i) {
  47     rounded_rects.push_back(rounded_clip_rects[i]);
  48   }
  49   display_item_list_->AppendItem(
  50       cc::ClipDisplayItem::Create(clip_rect, rounded_rects));
  51 }
  52
  53 void WebDisplayItemListImpl::appendEndClipItem() {
  54   display_item_list_->AppendItem(cc::EndClipDisplayItem::Create());
  55 }
  56
  57 void WebDisplayItemListImpl::appendClipPathItem(const SkPath& clip_path,
  58                                                 SkRegion::Op clip_op,
  59                                                 bool antialias) {
  60   display_item_list_->AppendItem(
  61       cc::ClipPathDisplayItem::Create(clip_path, clip_op, antialias));
  62 }
  63
  64 void WebDisplayItemListImpl::appendEndClipPathItem() {
  65   display_item_list_->AppendItem(cc::EndClipPathDisplayItem::Create());
  66 }
  67
  68 void WebDisplayItemListImpl::appendFloatClipItem(
  69     const blink::WebFloatRect& clip_rect) {
  70   display_item_list_->AppendItem(cc::FloatClipDisplayItem::Create(clip_rect));
  71 }
  72
  73 void WebDisplayItemListImpl::appendEndFloatClipItem() {
  74   display_item_list_->AppendItem(cc::EndFloatClipDisplayItem::Create());
  75 }
  76
  77 void WebDisplayItemListImpl::appendTransformItem(const SkMatrix44& matrix) {
  78   gfx::Transform transform;
  79   transform.matrix() = matrix;
  80   display_item_list_->AppendItem(cc::TransformDisplayItem::Create(transform));
  81 }
  82
  83 void WebDisplayItemListImpl::appendEndTransformItem() {
  84   display_item_list_->AppendItem(cc::EndTransformDisplayItem::Create());
  85 }
  86
  87 // TODO(pdr): Remove this once the blink-side callers have been removed.
  88 void WebDisplayItemListImpl::appendCompositingItem(
  89     float opacity,
  90     SkXfermode::Mode xfermode,
  91     SkColorFilter* color_filter) {
  92   appendCompositingItem(opacity, xfermode, nullptr, color_filter);
  93 }
  94
  95 void WebDisplayItemListImpl::appendCompositingItem(
  96     float opacity,
  97     SkXfermode::Mode xfermode,
  98     SkRect* bounds,
  99     SkColorFilter* color_filter) {
 100   display_item_list_->AppendItem(cc::CompositingDisplayItem::Create(
 101       opacity, xfermode, bounds, skia::SharePtr(color_filter)));
 102 }
 103
 104 void WebDisplayItemListImpl::appendEndCompositingItem() {
 105   display_item_list_->AppendItem(cc::EndCompositingDisplayItem::Create());
 106 }
 107
 108 void WebDisplayItemListImpl::appendFilterItem(
 109     const blink::WebFilterOperations& filters,
 110     const blink::WebFloatRect& bounds) {
 111   const WebFilterOperationsImpl& filters_impl =
 112       static_cast<const WebFilterOperationsImpl&>(filters);
 113   display_item_list_->AppendItem(
 114       cc::FilterDisplayItem::Create(filters_impl.AsFilterOperations(), bounds));
 115 }
 116
 117 void WebDisplayItemListImpl::appendEndFilterItem() {
 118   display_item_list_->AppendItem(cc::EndFilterDisplayItem::Create());
 119 }
 120
 121 void WebDisplayItemListImpl::appendScrollItem(
 122     const blink::WebSize& scrollOffset,
 123     ScrollContainerId) {
 124   SkMatrix44 matrix;
 125   matrix.setTranslate(-scrollOffset.width, -scrollOffset.height, 0);
 126   appendTransformItem(matrix);
 127 }
 128
 129 void WebDisplayItemListImpl::appendEndScrollItem() {
 130   appendEndTransformItem();
 131 }
 132
 133 WebDisplayItemListImpl::~WebDisplayItemListImpl() {
 134 }
 135
 136 }  // namespace cc_blink