5d67b1797a
In nanobench we want to try and simulate a GPUs swapbuffering and not get too far ahead on the CPU. Thus we use finished callbacks to know if we get more than 3 frames ahead of the GPU. This CL adds support for Graphite to do this. Bug: skia:12974 Change-Id: I8be505c5769399dcc0f5954f9f999f4448633647 Reviewed-on: https://skia-review.googlesource.com/c/skia/+/525186 Reviewed-by: Michael Ludwig <michaelludwig@google.com> Commit-Queue: Greg Daniel <egdaniel@google.com> Reviewed-by: Jim Van Verth <jvanverth@google.com>
84 lines
2.4 KiB
C++
84 lines
2.4 KiB
C++
/*
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* Copyright 2015 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef nanobench_DEFINED
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#define nanobench_DEFINED
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#include "bench/Benchmark.h"
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#include "include/core/SkImageInfo.h"
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#include "include/core/SkSurface.h"
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#include "include/core/SkTypes.h"
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#include "tools/gpu/GrContextFactory.h"
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#include "tools/graphite/ContextFactory.h"
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class SkBitmap;
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class SkCanvas;
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class NanoJSONResultsWriter;
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struct Config {
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SkString name;
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Benchmark::Backend backend;
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SkColorType color;
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SkAlphaType alpha;
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sk_sp<SkColorSpace> colorSpace;
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int samples;
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sk_gpu_test::GrContextFactory::ContextType ctxType;
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sk_gpu_test::GrContextFactory::ContextOverrides ctxOverrides;
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skiatest::graphite::ContextFactory::ContextType graphiteCtxType;
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uint32_t surfaceFlags;
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};
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struct Target {
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explicit Target(const Config& c) : config(c) { }
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virtual ~Target() { }
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const Config config;
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sk_sp<SkSurface> surface;
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/** Called once per target, immediately before any timing or drawing. */
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virtual void setup() { }
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/** Called *after* the clock timer is started, before the benchmark
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is drawn. Most back ends just return the canvas passed in,
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but some may replace it. */
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virtual SkCanvas* beginTiming(SkCanvas* canvas) { return canvas; }
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/** Called *after* a benchmark is drawn, but before the clock timer
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is stopped. */
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virtual void endTiming() { }
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/** Called between benchmarks (or between calibration and measured
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runs) to make sure all pending work in drivers / threads is
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complete. */
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virtual void syncCPU() { }
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/** CPU-like targets can just be timed, but GPU-like
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targets need to pay attention to frame boundaries
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or other similar details. */
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virtual bool needsFrameTiming(int* frameLag) const { return false; }
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/** Called once per target, during program initialization.
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Returns false if initialization fails. */
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virtual bool init(SkImageInfo info, Benchmark* bench);
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/** Stores any pixels drawn to the screen in the bitmap.
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Returns false on error. */
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virtual bool capturePixels(SkBitmap* bmp);
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/** Writes gathered stats using SkDebugf. */
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virtual void dumpStats() {}
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SkCanvas* getCanvas() const {
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if (!surface) {
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return nullptr;
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}
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return surface->getCanvas();
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}
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};
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#endif // nanobench_DEFINED
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