cc/layers/texture_layer_impl.h

   1 // Copyright 2012 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 #ifndef CC_LAYERS_TEXTURE_LAYER_IMPL_H_
   6 #define CC_LAYERS_TEXTURE_LAYER_IMPL_H_
   7
   8 #include <string>
   9
  10 #include "base/callback.h"
  11 #include "cc/base/cc_export.h"
  12 #include "cc/layers/layer_impl.h"
  13
  14 namespace cc {
  15 class SingleReleaseCallbackImpl;
  16 class ScopedResource;
  17
  18 class CC_EXPORT TextureLayerImpl : public LayerImpl {
  19  public:
  20   static scoped_ptr<TextureLayerImpl> Create(LayerTreeImpl* tree_impl, int id) {
  21     return make_scoped_ptr(new TextureLayerImpl(tree_impl, id));
  22   }
  23   ~TextureLayerImpl() override;
  24
  25   scoped_ptr<LayerImpl> CreateLayerImpl(
  26       LayerTreeImpl* layer_tree_impl) override;
  27   void PushPropertiesTo(LayerImpl* layer) override;
  28
  29   bool WillDraw(DrawMode draw_mode,
  30                 ResourceProvider* resource_provider) override;
  31   void AppendQuads(RenderPass* render_pass,
  32                    const Occlusion& occlusion_in_content_space,
  33                    AppendQuadsData* append_quads_data) override;
  34   SimpleEnclosedRegion VisibleContentOpaqueRegion() const override;
  35   void ReleaseResources() override;
  36
  37   // These setter methods don't cause any implicit damage, so the texture client
  38   // must explicitly invalidate if they intend to cause a visible change in the
  39   // layer's output.
  40   void SetTextureId(unsigned id);
  41   void SetPremultipliedAlpha(bool premultiplied_alpha);
  42   void SetBlendBackgroundColor(bool blend);
  43   void SetFlipped(bool flipped);
  44   void SetUVTopLeft(const gfx::PointF top_left);
  45   void SetUVBottomRight(const gfx::PointF bottom_right);
  46
  47   // 1--2
  48   // |  |
  49   // 0--3
  50   void SetVertexOpacity(const float vertex_opacity[4]);
  51
  52   void SetTextureMailbox(
  53       const TextureMailbox& mailbox,
  54       scoped_ptr<SingleReleaseCallbackImpl> release_callback);
  55
  56  private:
  57   TextureLayerImpl(LayerTreeImpl* tree_impl, int id);
  58
  59   const char* LayerTypeAsString() const override;
  60   void FreeTextureMailbox();
  61
  62   ResourceProvider::ResourceId external_texture_resource_;
  63   bool premultiplied_alpha_;
  64   bool blend_background_color_;
  65   bool flipped_;
  66   gfx::PointF uv_top_left_;
  67   gfx::PointF uv_bottom_right_;
  68   float vertex_opacity_[4];
  69   // This is a resource that's a GL copy of a software texture mailbox.
  70   scoped_ptr<ScopedResource> texture_copy_;
  71
  72   TextureMailbox texture_mailbox_;
  73   scoped_ptr<SingleReleaseCallbackImpl> release_callback_;
  74   bool own_mailbox_;
  75   bool valid_texture_copy_;
  76
  77   DISALLOW_COPY_AND_ASSIGN(TextureLayerImpl);
  78 };
  79
  80 }  // namespace cc
  81
  82 #endif  // CC_LAYERS_TEXTURE_LAYER_IMPL_H_