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| 1 // Copyright 2013 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_TILE_DRAW_INFO_H_ | |
| 6 #define CC_RESOURCES_TILE_DRAW_INFO_H_ | |
| 7 | |
| 8 #include "base/memory/scoped_ptr.h" | |
| 9 #include "base/trace_event/trace_event_argument.h" | |
| 10 #include "cc/resources/platform_color.h" | |
| 11 #include "cc/resources/resource_provider.h" | |
| 12 #include "cc/resources/scoped_resource.h" | |
| 13 #include "cc/resources/tile_task_runner.h" | |
| 14 | |
| 15 namespace cc { | |
| 16 | |
| 17 // This class holds all the state relevant to drawing a tile. | |
| 18 class CC_EXPORT TileDrawInfo { | |
| 19 public: | |
| 20 enum Mode { RESOURCE_MODE, SOLID_COLOR_MODE, OOM_MODE }; | |
| 21 | |
| 22 TileDrawInfo(); | |
| 23 ~TileDrawInfo(); | |
| 24 | |
| 25 Mode mode() const { return mode_; } | |
| 26 | |
| 27 bool IsReadyToDraw() const { | |
| 28 switch (mode_) { | |
| 29 case RESOURCE_MODE: | |
| 30 return !!resource_; | |
| 31 case SOLID_COLOR_MODE: | |
| 32 case OOM_MODE: | |
| 33 return true; | |
| 34 } | |
| 35 NOTREACHED(); | |
| 36 return false; | |
| 37 } | |
| 38 bool NeedsRaster() const { | |
| 39 switch (mode_) { | |
| 40 case RESOURCE_MODE: | |
| 41 return !resource_; | |
| 42 case SOLID_COLOR_MODE: | |
| 43 return false; | |
| 44 case OOM_MODE: | |
| 45 return true; | |
| 46 } | |
| 47 NOTREACHED(); | |
| 48 return false; | |
| 49 } | |
| 50 | |
| 51 ResourceProvider::ResourceId resource_id() const { | |
| 52 DCHECK(mode_ == RESOURCE_MODE); | |
| 53 DCHECK(resource_); | |
| 54 return resource_->id(); | |
| 55 } | |
| 56 | |
| 57 gfx::Size resource_size() const { | |
| 58 DCHECK(mode_ == RESOURCE_MODE); | |
| 59 DCHECK(resource_); | |
| 60 return resource_->size(); | |
| 61 } | |
| 62 | |
| 63 SkColor solid_color() const { | |
| 64 DCHECK(mode_ == SOLID_COLOR_MODE); | |
| 65 return solid_color_; | |
| 66 } | |
| 67 | |
| 68 bool contents_swizzled() const { | |
| 69 DCHECK(resource_); | |
| 70 return !PlatformColor::SameComponentOrder(resource_->format()); | |
| 71 } | |
| 72 | |
| 73 bool requires_resource() const { | |
| 74 return mode_ == RESOURCE_MODE || mode_ == OOM_MODE; | |
| 75 } | |
| 76 | |
| 77 inline bool has_resource() const { return !!resource_; } | |
| 78 | |
| 79 void SetSolidColorForTesting(SkColor color) { set_solid_color(color); } | |
| 80 void SetResourceForTesting(scoped_ptr<ScopedResource> resource) { | |
| 81 resource_ = resource.Pass(); | |
| 82 } | |
| 83 | |
| 84 void AsValueInto(base::trace_event::TracedValue* state) const; | |
| 85 | |
| 86 private: | |
| 87 friend class Tile; | |
| 88 friend class TileManager; | |
| 89 | |
| 90 void set_use_resource() { mode_ = RESOURCE_MODE; } | |
| 91 | |
| 92 void set_solid_color(const SkColor& color) { | |
| 93 mode_ = SOLID_COLOR_MODE; | |
| 94 solid_color_ = color; | |
| 95 } | |
| 96 | |
| 97 void set_oom() { mode_ = OOM_MODE; } | |
| 98 | |
| 99 Mode mode_; | |
| 100 SkColor solid_color_; | |
| 101 scoped_ptr<ScopedResource> resource_; | |
| 102 }; | |
| 103 | |
| 104 } // namespace cc | |
| 105 | |
| 106 #endif // CC_RESOURCES_TILE_DRAW_INFO_H_ | |
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