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Unified Diff: tools/gpu/GpuTimer.h

Issue 2390383002: Revert of skpbench: add option for gpu timing (Closed)
Patch Set: Created 4 years, 2 months ago
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Index: tools/gpu/GpuTimer.h
diff --git a/tools/gpu/GpuTimer.h b/tools/gpu/GpuTimer.h
deleted file mode 100644
index d9e320e0a065528064cea7a870de5ca316e3dfe1..0000000000000000000000000000000000000000
--- a/tools/gpu/GpuTimer.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef GpuTimer_DEFINED
-#define GpuTimer_DEFINED
-
-#include "SkTypes.h"
-#include "SkExchange.h"
-#include <chrono>
-
-namespace sk_gpu_test {
-
-using PlatformTimerQuery = intptr_t;
-static constexpr PlatformTimerQuery kInvalidTimerQuery = 0;
-
-/**
- * Platform-independent interface for timing operations on the GPU.
- */
-class GpuTimer {
-public:
- GpuTimer(bool disjointSupport)
- : fDisjointSupport(disjointSupport)
- , fActiveTimer(kInvalidTimerQuery) {
- }
- virtual ~GpuTimer() { SkASSERT(!fActiveTimer); }
-
- /**
- * Returns whether this timer can detect disjoint GPU operations while timing. If false, a query
- * has less confidence when it completes with QueryStatus::kAccurate.
- */
- bool disjointSupport() const { return fDisjointSupport; }
-
- /**
- * Inserts a "start timing" command in the GPU command stream.
- */
- void queueStart() {
- SkASSERT(!fActiveTimer);
- fActiveTimer = this->onQueueTimerStart();
- }
-
- /**
- * Inserts a "stop timing" command in the GPU command stream.
- *
- * @return a query object that can retrieve the time elapsed once the timer has completed.
- */
- PlatformTimerQuery SK_WARN_UNUSED_RESULT queueStop() {
- SkASSERT(fActiveTimer);
- this->onQueueTimerStop(fActiveTimer);
- return skstd::exchange(fActiveTimer, kInvalidTimerQuery);
- }
-
- enum class QueryStatus {
- kInvalid, //<! the timer query is invalid.
- kPending, //<! the timer is still running on the GPU.
- kDisjoint, //<! the query is complete, but dubious due to disjoint GPU operations.
- kAccurate //<! the query is complete and reliable.
- };
-
- virtual QueryStatus checkQueryStatus(PlatformTimerQuery) = 0;
- virtual std::chrono::nanoseconds getTimeElapsed(PlatformTimerQuery) = 0;
- virtual void deleteQuery(PlatformTimerQuery) = 0;
-
-private:
- virtual PlatformTimerQuery onQueueTimerStart() const = 0;
- virtual void onQueueTimerStop(PlatformTimerQuery) const = 0;
-
- bool const fDisjointSupport;
- PlatformTimerQuery fActiveTimer;
-};
-
-} // namespace sk_gpu_test
-
-#endif
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