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| 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 #ifndef CC_SURFACES_SURFACE_AGGREGATOR_H_ | |
| 6 #define CC_SURFACES_SURFACE_AGGREGATOR_H_ | |
| 7 | |
| 8 #include <set> | |
| 9 | |
| 10 #include "base/containers/hash_tables.h" | |
| 11 #include "base/containers/scoped_ptr_hash_map.h" | |
| 12 #include "base/memory/scoped_ptr.h" | |
| 13 #include "cc/quads/render_pass.h" | |
| 14 #include "cc/resources/transferable_resource.h" | |
| 15 #include "cc/surfaces/surface_id.h" | |
| 16 #include "cc/surfaces/surfaces_export.h" | |
| 17 | |
| 18 namespace cc { | |
| 19 | |
| 20 class CompositorFrame; | |
| 21 class DelegatedFrameData; | |
| 22 class ResourceProvider; | |
| 23 class Surface; | |
| 24 class SurfaceDrawQuad; | |
| 25 class SurfaceManager; | |
| 26 | |
| 27 class CC_SURFACES_EXPORT SurfaceAggregator { | |
| 28 public: | |
| 29 typedef base::hash_map<SurfaceId, int> SurfaceIndexMap; | |
| 30 | |
| 31 SurfaceAggregator(SurfaceManager* manager, ResourceProvider* provider); | |
| 32 ~SurfaceAggregator(); | |
| 33 | |
| 34 scoped_ptr<CompositorFrame> Aggregate(SurfaceId surface_id); | |
| 35 void ReleaseResources(SurfaceId surface_id); | |
| 36 SurfaceIndexMap& previous_contained_surfaces() { | |
| 37 return previous_contained_surfaces_; | |
| 38 } | |
| 39 | |
| 40 private: | |
| 41 struct ClipData { | |
| 42 ClipData() : is_clipped(false) {} | |
| 43 ClipData(bool is_clipped, const gfx::Rect& rect) | |
| 44 : is_clipped(is_clipped), rect(rect) {} | |
| 45 | |
| 46 bool is_clipped; | |
| 47 gfx::Rect rect; | |
| 48 }; | |
| 49 | |
| 50 ClipData CalculateClipRect(const ClipData& surface_clip, | |
| 51 const ClipData& quad_clip, | |
| 52 const gfx::Transform& content_to_target_transform); | |
| 53 | |
| 54 RenderPassId RemapPassId(RenderPassId surface_local_pass_id, | |
| 55 SurfaceId surface_id); | |
| 56 | |
| 57 void HandleSurfaceQuad(const SurfaceDrawQuad* surface_quad, | |
| 58 const gfx::Transform& content_to_target_transform, | |
| 59 const ClipData& clip_rect, | |
| 60 RenderPass* dest_pass); | |
| 61 void CopySharedQuadState(const SharedQuadState* source_sqs, | |
| 62 const gfx::Transform& content_to_target_transform, | |
| 63 const ClipData& clip_rect, | |
| 64 RenderPass* dest_render_pass); | |
| 65 void CopyQuadsToPass(const QuadList& source_quad_list, | |
| 66 const SharedQuadStateList& source_shared_quad_state_list, | |
| 67 const gfx::Transform& content_to_target_transform, | |
| 68 const ClipData& clip_rect, | |
| 69 RenderPass* dest_pass, | |
| 70 SurfaceId surface_id); | |
| 71 void CopyPasses(const DelegatedFrameData* frame_data, Surface* surface); | |
| 72 | |
| 73 // Remove Surfaces that were referenced before but aren't currently | |
| 74 // referenced from the ResourceProvider. | |
| 75 void RemoveUnreferencedChildren(); | |
| 76 | |
| 77 bool TakeResources(Surface* surface, | |
| 78 const DelegatedFrameData* frame_data, | |
| 79 RenderPassList* render_pass_list); | |
| 80 int ChildIdForSurface(Surface* surface); | |
| 81 gfx::Rect DamageRectForSurface(const Surface* surface, | |
| 82 const RenderPass& source, | |
| 83 const gfx::Rect& full_rect); | |
| 84 | |
| 85 SurfaceManager* manager_; | |
| 86 ResourceProvider* provider_; | |
| 87 | |
| 88 class RenderPassIdAllocator; | |
| 89 typedef base::ScopedPtrHashMap<SurfaceId, scoped_ptr<RenderPassIdAllocator>> | |
| 90 RenderPassIdAllocatorMap; | |
| 91 RenderPassIdAllocatorMap render_pass_allocator_map_; | |
| 92 int next_render_pass_id_; | |
| 93 | |
| 94 typedef base::hash_map<SurfaceId, int> SurfaceToResourceChildIdMap; | |
| 95 SurfaceToResourceChildIdMap surface_id_to_resource_child_id_; | |
| 96 | |
| 97 // The following state is only valid for the duration of one Aggregate call | |
| 98 // and is only stored on the class to avoid having to pass through every | |
| 99 // function call. | |
| 100 | |
| 101 // This is the set of surfaces referenced in the aggregation so far, used to | |
| 102 // detect cycles. | |
| 103 typedef std::set<SurfaceId> SurfaceSet; | |
| 104 SurfaceSet referenced_surfaces_; | |
| 105 | |
| 106 // For each Surface used in the last aggregation, gives the frame_index at | |
| 107 // that time. | |
| 108 SurfaceIndexMap previous_contained_surfaces_; | |
| 109 SurfaceIndexMap contained_surfaces_; | |
| 110 | |
| 111 // This is the pass list for the aggregated frame. | |
| 112 RenderPassList* dest_pass_list_; | |
| 113 | |
| 114 // Resource list for the aggregated frame. | |
| 115 TransferableResourceArray* dest_resource_list_; | |
| 116 | |
| 117 DISALLOW_COPY_AND_ASSIGN(SurfaceAggregator); | |
| 118 }; | |
| 119 | |
| 120 } // namespace cc | |
| 121 | |
| 122 #endif // CC_SURFACES_SURFACE_AGGREGATOR_H_ | |
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