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| 1 // Copyright 2011 The Chromium Authors. All rights reserved. | 1 // Copyright 2011 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef CC_SCHEDULER_STATE_MACHINE_H_ | 5 #ifndef CC_SCHEDULER_STATE_MACHINE_H_ |
| 6 #define CC_SCHEDULER_STATE_MACHINE_H_ | 6 #define CC_SCHEDULER_STATE_MACHINE_H_ |
| 7 | 7 |
| 8 #include <string> | 8 #include <string> |
| 9 | 9 |
| 10 #include "base/basictypes.h" | 10 #include "base/basictypes.h" |
| (...skipping 21 matching lines...) Expand all Loading... |
| 32 COMMIT_STATE_READY_TO_COMMIT, | 32 COMMIT_STATE_READY_TO_COMMIT, |
| 33 COMMIT_STATE_WAITING_FOR_FIRST_DRAW, | 33 COMMIT_STATE_WAITING_FOR_FIRST_DRAW, |
| 34 }; | 34 }; |
| 35 | 35 |
| 36 enum TextureState { | 36 enum TextureState { |
| 37 LAYER_TEXTURE_STATE_UNLOCKED, | 37 LAYER_TEXTURE_STATE_UNLOCKED, |
| 38 LAYER_TEXTURE_STATE_ACQUIRED_BY_MAIN_THREAD, | 38 LAYER_TEXTURE_STATE_ACQUIRED_BY_MAIN_THREAD, |
| 39 LAYER_TEXTURE_STATE_ACQUIRED_BY_IMPL_THREAD, | 39 LAYER_TEXTURE_STATE_ACQUIRED_BY_IMPL_THREAD, |
| 40 }; | 40 }; |
| 41 | 41 |
| 42 enum ContextState { | 42 enum OutputSurfaceState { |
| 43 CONTEXT_ACTIVE, | 43 OUTPUT_SURFACE_ACTIVE, |
| 44 CONTEXT_LOST, | 44 OUTPUT_SURFACE_LOST, |
| 45 CONTEXT_RECREATING, | 45 OUTPUT_SURFACE_RECREATING, |
| 46 }; | 46 }; |
| 47 | 47 |
| 48 bool commitPending() const | 48 bool commitPending() const |
| 49 { | 49 { |
| 50 return m_commitState != COMMIT_STATE_IDLE; | 50 return m_commitState != COMMIT_STATE_IDLE; |
| 51 } | 51 } |
| 52 | 52 |
| 53 bool redrawPending() const { return m_needsRedraw; } | 53 bool redrawPending() const { return m_needsRedraw; } |
| 54 | 54 |
| 55 enum Action { | 55 enum Action { |
| 56 ACTION_NONE, | 56 ACTION_NONE, |
| 57 ACTION_BEGIN_FRAME, | 57 ACTION_BEGIN_FRAME, |
| 58 ACTION_COMMIT, | 58 ACTION_COMMIT, |
| 59 ACTION_DRAW_IF_POSSIBLE, | 59 ACTION_DRAW_IF_POSSIBLE, |
| 60 ACTION_DRAW_FORCED, | 60 ACTION_DRAW_FORCED, |
| 61 ACTION_BEGIN_CONTEXT_RECREATION, | 61 ACTION_BEGIN_OUTPUT_SURFACE_RECREATION, |
| 62 ACTION_ACQUIRE_LAYER_TEXTURES_FOR_MAIN_THREAD, | 62 ACTION_ACQUIRE_LAYER_TEXTURES_FOR_MAIN_THREAD, |
| 63 }; | 63 }; |
| 64 Action nextAction() const; | 64 Action nextAction() const; |
| 65 void updateState(Action); | 65 void updateState(Action); |
| 66 | 66 |
| 67 // Indicates whether the scheduler needs a vsync callback in order to make | 67 // Indicates whether the scheduler needs a vsync callback in order to make |
| 68 // progress. | 68 // progress. |
| 69 bool vsyncCallbackNeeded() const; | 69 bool vsyncCallbackNeeded() const; |
| 70 | 70 |
| 71 // Indicates that the system has entered and left a vsync callback. | 71 // Indicates that the system has entered and left a vsync callback. |
| (...skipping 41 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 113 void setMainThreadNeedsLayerTextures(); | 113 void setMainThreadNeedsLayerTextures(); |
| 114 | 114 |
| 115 // Indicates whether we can successfully begin a frame at this time. | 115 // Indicates whether we can successfully begin a frame at this time. |
| 116 void setCanBeginFrame(bool can) { m_canBeginFrame = can; } | 116 void setCanBeginFrame(bool can) { m_canBeginFrame = can; } |
| 117 | 117 |
| 118 // Indicates whether drawing would, at this time, make sense. | 118 // Indicates whether drawing would, at this time, make sense. |
| 119 // canDraw can be used to supress flashes or checkerboarding | 119 // canDraw can be used to supress flashes or checkerboarding |
| 120 // when such behavior would be undesirable. | 120 // when such behavior would be undesirable. |
| 121 void setCanDraw(bool can) { m_canDraw = can; } | 121 void setCanDraw(bool can) { m_canDraw = can; } |
| 122 | 122 |
| 123 void didLoseContext(); | 123 void didLoseOutputSurface(); |
| 124 void didRecreateContext(); | 124 void didRecreateOutputSurface(); |
| 125 | 125 |
| 126 // Exposed for testing purposes. | 126 // Exposed for testing purposes. |
| 127 void setMaximumNumberOfFailedDrawsBeforeDrawIsForced(int); | 127 void setMaximumNumberOfFailedDrawsBeforeDrawIsForced(int); |
| 128 | 128 |
| 129 std::string toString(); | 129 std::string toString(); |
| 130 | 130 |
| 131 protected: | 131 protected: |
| 132 bool shouldDrawForced() const; | 132 bool shouldDrawForced() const; |
| 133 bool drawSuspendedUntilCommit() const; | 133 bool drawSuspendedUntilCommit() const; |
| 134 bool scheduledToDraw() const; | 134 bool scheduledToDraw() const; |
| (...skipping 13 matching lines...) Expand all Loading... |
| 148 bool m_needsCommit; | 148 bool m_needsCommit; |
| 149 bool m_needsForcedCommit; | 149 bool m_needsForcedCommit; |
| 150 bool m_expectImmediateBeginFrame; | 150 bool m_expectImmediateBeginFrame; |
| 151 bool m_mainThreadNeedsLayerTextures; | 151 bool m_mainThreadNeedsLayerTextures; |
| 152 bool m_insideVSync; | 152 bool m_insideVSync; |
| 153 bool m_visible; | 153 bool m_visible; |
| 154 bool m_canBeginFrame; | 154 bool m_canBeginFrame; |
| 155 bool m_canDraw; | 155 bool m_canDraw; |
| 156 bool m_drawIfPossibleFailed; | 156 bool m_drawIfPossibleFailed; |
| 157 TextureState m_textureState; | 157 TextureState m_textureState; |
| 158 ContextState m_contextState; | 158 OutputSurfaceState m_outputSurfaceState; |
| 159 | 159 |
| 160 DISALLOW_COPY_AND_ASSIGN(SchedulerStateMachine); | 160 DISALLOW_COPY_AND_ASSIGN(SchedulerStateMachine); |
| 161 }; | 161 }; |
| 162 | 162 |
| 163 } | 163 } |
| 164 | 164 |
| 165 #endif // CC_SCHEDULER_STATE_MACHINE_H_ | 165 #endif // CC_SCHEDULER_STATE_MACHINE_H_ |
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