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// Copyright 2012 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.
#ifndef CC_LAYERS_DELEGATED_RENDERER_LAYER_IMPL_H_
#define CC_LAYERS_DELEGATED_RENDERER_LAYER_IMPL_H_
#include "base/containers/hash_tables.h"
#include "base/memory/scoped_ptr.h"
#include "cc/base/cc_export.h"
#include "cc/base/scoped_ptr_vector.h"
#include "cc/layers/layer_impl.h"
namespace cc {
class DelegatedFrameData;
class RenderPassSink;
class CC_EXPORT DelegatedRendererLayerImpl : public LayerImpl {
public:
static scoped_ptr<DelegatedRendererLayerImpl> Create(
LayerTreeImpl* tree_impl, int id) {
return make_scoped_ptr(new DelegatedRendererLayerImpl(tree_impl, id));
}
~DelegatedRendererLayerImpl() override;
// LayerImpl overrides.
scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override;
bool HasDelegatedContent() const override;
bool HasContributingDelegatedRenderPasses() const override;
RenderPassId FirstContributingRenderPassId() const override;
RenderPassId NextContributingRenderPassId(
RenderPassId previous) const override;
void ReleaseResources() override;
bool WillDraw(DrawMode draw_mode,
ResourceProvider* resource_provider) override;
void AppendQuads(RenderPass* render_pass,
AppendQuadsData* append_quads_data) override;
void PushPropertiesTo(LayerImpl* layer) override;
void AppendContributingRenderPasses(RenderPassSink* render_pass_sink);
// Creates an ID with the resource provider for the child renderer
// that will be sending quads to the layer. Registers the callback to
// inform when resources are no longer in use.
void CreateChildIdIfNeeded(const ReturnCallback& return_callback);
void SetFrameData(const DelegatedFrameData* frame_data,
const gfx::Rect& damage_in_frame);
float inverse_device_scale_factor() const {
return inverse_device_scale_factor_;
}
protected:
DelegatedRendererLayerImpl(LayerTreeImpl* tree_impl, int id);
int ChildIdForTesting() const { return child_id_; }
const RenderPassList& RenderPassesInDrawOrderForTesting() const {
return render_passes_in_draw_order_;
}
const ResourceProvider::ResourceIdSet& ResourcesForTesting() const {
return resources_;
}
private:
void ClearChildId();
void AppendRainbowDebugBorder(RenderPass* render_pass);
void TakeOwnershipOfResourcesIfOnActiveTree(
const ResourceProvider::ResourceIdSet& resources);
void SetRenderPasses(RenderPassList* render_passes_in_draw_order);
void ClearRenderPasses();
// Returns |true| if the delegated_render_pass_id is part of the current
// frame and can be converted.
bool ConvertDelegatedRenderPassId(RenderPassId delegated_render_pass_id,
RenderPassId* output_render_pass_id) const;
void AppendRenderPassQuads(RenderPass* render_pass,
const RenderPass* delegated_render_pass,
const gfx::Size& frame_size) const;
// LayerImpl overrides.
const char* LayerTypeAsString() const override;
bool have_render_passes_to_push_;
float inverse_device_scale_factor_;
RenderPassList render_passes_in_draw_order_;
using RenderPassToIndexMap = base::hash_map<RenderPassId, size_t>;
RenderPassToIndexMap render_passes_index_by_id_;
ResourceProvider::ResourceIdSet resources_;
int child_id_;
bool own_child_id_;
DISALLOW_COPY_AND_ASSIGN(DelegatedRendererLayerImpl);
};
} // namespace cc
#endif // CC_LAYERS_DELEGATED_RENDERER_LAYER_IMPL_H_
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