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| 1 #ifndef DMTask_DEFINED |
| 2 #define DMTask_DEFINED |
| 3 |
| 4 #include "DMGpuSupport.h" |
| 5 #include "DMReporter.h" |
| 6 #include "SkRunnable.h" |
| 7 #include "SkTaskGroup.h" |
| 8 #include "SkTime.h" |
| 9 |
| 10 // DM will run() these tasks on one of two threadpools. |
| 11 // Subclasses can call fail() to mark this task as failed, or make any number of
spawnChild() calls |
| 12 // to kick off dependent tasks. |
| 13 // |
| 14 // Tasks delete themselves when run. |
| 15 |
| 16 namespace DM { |
| 17 |
| 18 class TaskRunner; |
| 19 |
| 20 class CpuTask; |
| 21 |
| 22 class Task { |
| 23 public: |
| 24 virtual bool shouldSkip() const = 0; |
| 25 virtual SkString name() const = 0; |
| 26 |
| 27 // Returns the number of parents above this task. |
| 28 // Top-level tasks return 0, their children 1, and so on. |
| 29 int depth() const { return fDepth; } |
| 30 |
| 31 protected: |
| 32 Task(Reporter* reporter, TaskRunner* taskRunner); |
| 33 Task(const Task& parent); |
| 34 virtual ~Task(); |
| 35 |
| 36 void start(); |
| 37 void fail(const char* msg = NULL); |
| 38 void finish(); |
| 39 |
| 40 void reallySpawnChild(CpuTask* task); // For now we don't allow GPU child t
asks. |
| 41 |
| 42 private: |
| 43 Reporter* fReporter; // Unowned. |
| 44 TaskRunner* fTaskRunner; // Unowned. |
| 45 int fDepth; |
| 46 SkMSec fStart; |
| 47 }; |
| 48 |
| 49 class CpuTask : public Task, public SkRunnable { |
| 50 public: |
| 51 CpuTask(Reporter* reporter, TaskRunner* taskRunner); |
| 52 CpuTask(const Task& parent); |
| 53 virtual ~CpuTask() {} |
| 54 |
| 55 void run() SK_OVERRIDE; |
| 56 virtual void draw() = 0; |
| 57 |
| 58 void spawnChild(CpuTask* task); |
| 59 }; |
| 60 |
| 61 class GpuTask : public Task { |
| 62 public: |
| 63 GpuTask(Reporter* reporter, TaskRunner* taskRunner); |
| 64 virtual ~GpuTask() {} |
| 65 |
| 66 void run(GrContextFactory*); |
| 67 virtual void draw(GrContextFactory*) = 0; |
| 68 |
| 69 void spawnChild(CpuTask* task); |
| 70 }; |
| 71 |
| 72 } // namespace DM |
| 73 |
| 74 #endif // DMTask_DEFINED |
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