d6bab02386
git-svn-id: http://skia.googlecode.com/svn/trunk@12428 2bbb7eff-a529-9590-31e7-b0007b416f81
51 lines
1.1 KiB
C++
51 lines
1.1 KiB
C++
#ifndef DMTask_DEFINED
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#define DMTask_DEFINED
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#include "DMReporter.h"
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#include "SkRunnable.h"
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#include "SkThreadPool.h"
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// DM will run() these tasks on one of two threadpools, depending on the result
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// of usesGpu(). The subclasses can call fail() to mark this task as failed,
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// or make any number of spawnChild() calls to kick off dependent tasks.
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//
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// Task deletes itself when run.
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namespace DM {
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class TaskRunner;
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class Task : public SkRunnable {
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public:
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Task(Reporter* reporter, TaskRunner* taskRunner);
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Task(const Task& parent);
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virtual ~Task();
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void run() SK_OVERRIDE;
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virtual void draw() = 0;
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virtual bool usesGpu() const = 0;
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virtual bool shouldSkip() const = 0;
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virtual SkString name() const = 0;
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// Returns the number of parents above this task.
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// Top-level tasks return 0, their children 1, and so on.
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int depth() const { return fDepth; }
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protected:
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void spawnChild(Task* task);
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void fail();
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private:
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// Both unowned.
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Reporter* fReporter;
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TaskRunner* fTaskRunner;
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int fDepth;
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typedef SkRunnable INHERITED;
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};
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} // namespace DM
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#endif // DMTask_DEFINED
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