src/cc/layers/surface_layer_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/layers/surface_layer_impl.h"
   6
   7 #include "cc/debug/debug_colors.h"
   8 #include "cc/layers/quad_sink.h"
   9 #include "cc/quads/surface_draw_quad.h"
  10
  11 namespace cc {
  12
  13 SurfaceLayerImpl::SurfaceLayerImpl(LayerTreeImpl* tree_impl, int id)
  14     : LayerImpl(tree_impl, id), surface_id_(0) {}
  15
  16 SurfaceLayerImpl::~SurfaceLayerImpl() {}
  17
  18 scoped_ptr<LayerImpl> SurfaceLayerImpl::CreateLayerImpl(
  19     LayerTreeImpl* tree_impl) {
  20   return SurfaceLayerImpl::Create(tree_impl, id()).PassAs<LayerImpl>();
  21 }
  22
  23 void SurfaceLayerImpl::SetSurfaceId(int surface_id) {
  24   if (surface_id_ == surface_id)
  25     return;
  26
  27   surface_id_ = surface_id;
  28   NoteLayerPropertyChanged();
  29 }
  30
  31 void SurfaceLayerImpl::PushPropertiesTo(LayerImpl* layer) {
  32   LayerImpl::PushPropertiesTo(layer);
  33   SurfaceLayerImpl* layer_impl = static_cast<SurfaceLayerImpl*>(layer);
  34
  35   layer_impl->SetSurfaceId(surface_id_);
  36 }
  37
  38 void SurfaceLayerImpl::AppendQuads(QuadSink* quad_sink,
  39                                    AppendQuadsData* append_quads_data) {
  40   SharedQuadState* shared_quad_state =
  41       quad_sink->UseSharedQuadState(CreateSharedQuadState());
  42   AppendDebugBorderQuad(quad_sink, shared_quad_state, append_quads_data);
  43
  44   if (!surface_id_)
  45     return;
  46
  47   scoped_ptr<SurfaceDrawQuad> quad = SurfaceDrawQuad::Create();
  48   gfx::Rect quad_rect(content_bounds());
  49   gfx::Rect visible_quad_rect = quad_sink->UnoccludedContentRect(
  50       quad_rect, draw_properties().target_space_transform);
  51   if (visible_quad_rect.IsEmpty())
  52     return;
  53   quad->SetNew(shared_quad_state, quad_rect, visible_quad_rect, surface_id_);
  54   quad_sink->Append(quad.PassAs<DrawQuad>());
  55 }
  56
  57 void SurfaceLayerImpl::GetDebugBorderProperties(SkColor* color,
  58                                                 float* width) const {
  59   *color = DebugColors::SurfaceLayerBorderColor();
  60   *width = DebugColors::SurfaceLayerBorderWidth(layer_tree_impl());
  61 }
  62
  63 void SurfaceLayerImpl::AsValueInto(base::DictionaryValue* dict) const {
  64   LayerImpl::AsValueInto(dict);
  65   dict->SetInteger("surface_id", surface_id_);
  66 }
  67
  68 const char* SurfaceLayerImpl::LayerTypeAsString() const {
  69   return "cc::SurfaceLayerImpl";
  70 }
  71
  72 }  // namespace cc