cc/resources/gpu_rasterizer.h

   1 // Copyright 2015 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_RESOURCES_GPU_RASTERIZER_H_
   6 #define CC_RESOURCES_GPU_RASTERIZER_H_
   7
   8 #include <vector>
   9
  10 #include "cc/base/cc_export.h"
  11 #include "cc/resources/rasterizer.h"
  12 #include "cc/resources/resource_pool.h"
  13 #include "cc/resources/tile.h"
  14 #include "third_party/skia/include/core/SkMultiPictureDraw.h"
  15
  16 namespace cc {
  17
  18 class ContextProvider;
  19 class ResourceProvider;
  20
  21 class CC_EXPORT GpuRasterizer : public Rasterizer {
  22  public:
  23   ~GpuRasterizer() override;
  24
  25   static scoped_ptr<GpuRasterizer> Create(
  26       ContextProvider* context_provider,
  27       ResourceProvider* resource_provider,
  28       bool use_distance_field_text,
  29       bool threaded_gpu_rasterization_enabled,
  30       int msaa_sample_count);
  31   PrepareTilesMode GetPrepareTilesMode() override;
  32   void RasterizeTiles(
  33       const TileVector& tiles,
  34       ResourcePool* resource_pool,
  35       ResourceFormat resource_format,
  36       const UpdateTileDrawInfoCallback& update_tile_draw_info) override;
  37
  38  private:
  39   GpuRasterizer(ContextProvider* context_provider,
  40                 ResourceProvider* resource_provider,
  41                 bool use_distance_filed_text,
  42                 bool threaded_gpu_rasterization_enabled,
  43                 int msaa_sample_count);
  44
  45   using ScopedResourceWriteLocks =
  46       ScopedPtrVector<ResourceProvider::ScopedWriteLockGr>;
  47
  48   void PerformSolidColorAnalysis(const Tile* tile,
  49                                  RasterSource::SolidColorAnalysis* analysis);
  50   void AddToMultiPictureDraw(const Tile* tile,
  51                              const ScopedResource* resource,
  52                              ScopedResourceWriteLocks* locks);
  53
  54   ContextProvider* context_provider_;
  55   ResourceProvider* resource_provider_;
  56   SkMultiPictureDraw multi_picture_draw_;
  57
  58   bool use_distance_field_text_;
  59   bool threaded_gpu_rasterization_enabled_;
  60   int msaa_sample_count_;
  61
  62   DISALLOW_COPY_AND_ASSIGN(GpuRasterizer);
  63 };
  64
  65 }  // namespace cc
  66
  67 #endif  // CC_RESOURCES_GPU_RASTERIZER_H_