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skia2/tools/skpbench/skpbench.cpp
Chris Dalton 7a0ebfc033 Add a tooling flag for path mask caching 
Adds the flag and a disables caching on the CCPR bots.

Bug: skia:
Change-Id: Icb85e77f89634dda1d419dacac5b8a93340723f0
Reviewed-on: https://skia-review.googlesource.com/59740
Reviewed-by: Eric Boren <borenet@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>
2017-10-13 22:31:12 +00:00

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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GpuTimer.h"
#include "GrContextFactory.h"
#include "SkGr.h"
#include "SkCanvas.h"
#include "SkCommonFlags.h"
#include "SkCommonFlagsPathRenderer.h"
#include "SkOSFile.h"
#include "SkOSPath.h"
#include "SkPerlinNoiseShader.h"
#include "SkPicture.h"
#include "SkPictureRecorder.h"
#include "SkStream.h"
#include "SkSurface.h"
#include "SkSurfaceProps.h"
#include "picture_utils.h"
#include "sk_tool_utils.h"
#include "flags/SkCommandLineFlags.h"
#include "flags/SkCommonFlagsConfig.h"
#include <stdlib.h>
#include <algorithm>
#include <array>
#include <chrono>
#include <cmath>
#include <vector>
/**
* This is a minimalist program whose sole purpose is to open an skp file, benchmark it on a single
* config, and exit. It is intended to be used through skpbench.py rather than invoked directly.
* Limiting the entire process to a single config/skp pair helps to keep the results repeatable.
*
* No tiling, looping, or other fanciness is used; it just draws the skp whole into a size-matched
* render target and syncs the GPU after each draw.
*
* Currently, only GPU configs are supported.
*/
DEFINE_int32(duration, 5000, "number of milliseconds to run the benchmark");
DEFINE_int32(sampleMs, 50, "minimum duration of a sample");
DEFINE_bool(gpuClock, false, "time on the gpu clock (gpu work only)");
DEFINE_bool(fps, false, "use fps instead of ms");
DEFINE_string(skp, "", "path to a single .skp file, or 'warmup' for a builtin warmup run");
DEFINE_string(png, "", "if set, save a .png proof to disk at this file location");
DEFINE_int32(verbosity, 4, "level of verbosity (0=none to 5=debug)");
DEFINE_bool(suppressHeader, false, "don't print a header row before the results");
DEFINE_pathrenderer_flag;
static const char* header =
" accum median max min stddev samples sample_ms clock metric config bench";
static const char* resultFormat =
"%8.4g %8.4g %8.4g %8.4g %6.3g%% %7li %9i %-5s %-6s %-9s %s";
struct Sample {
using duration = std::chrono::nanoseconds;
Sample() : fFrames(0), fDuration(0) {}
double seconds() const { return std::chrono::duration<double>(fDuration).count(); }
double ms() const { return std::chrono::duration<double, std::milli>(fDuration).count(); }
double value() const { return FLAGS_fps ? fFrames / this->seconds() : this->ms() / fFrames; }
static const char* metric() { return FLAGS_fps ? "fps" : "ms"; }
int fFrames;
duration fDuration;
};
class GpuSync {
public:
GpuSync(const sk_gpu_test::FenceSync* fenceSync);
~GpuSync();
void syncToPreviousFrame();
private:
void updateFence();
const sk_gpu_test::FenceSync* const fFenceSync;
sk_gpu_test::PlatformFence fFence;
};
enum class ExitErr {
kOk = 0,
kUsage = 64,
kData = 65,
kUnavailable = 69,
kIO = 74,
kSoftware = 70
};
static void draw_skp_and_flush(SkCanvas*, const SkPicture*);
static sk_sp<SkPicture> create_warmup_skp();
static bool mkdir_p(const SkString& name);
static SkString join(const SkCommandLineFlags::StringArray&);
static void exitf(ExitErr, const char* format, ...);
static void run_benchmark(const sk_gpu_test::FenceSync* fenceSync, SkCanvas* canvas,
const SkPicture* skp, std::vector<Sample>* samples) {
using clock = std::chrono::high_resolution_clock;
const Sample::duration sampleDuration = std::chrono::milliseconds(FLAGS_sampleMs);
const clock::duration benchDuration = std::chrono::milliseconds(FLAGS_duration);
draw_skp_and_flush(canvas, skp);
GpuSync gpuSync(fenceSync);
draw_skp_and_flush(canvas, skp);
gpuSync.syncToPreviousFrame();
clock::time_point now = clock::now();
const clock::time_point endTime = now + benchDuration;
do {
clock::time_point sampleStart = now;
samples->emplace_back();
Sample& sample = samples->back();
do {
draw_skp_and_flush(canvas, skp);
gpuSync.syncToPreviousFrame();
now = clock::now();
sample.fDuration = now - sampleStart;
++sample.fFrames;
} while (sample.fDuration < sampleDuration);
} while (now < endTime || 0 == samples->size() % 2);
}
static void run_gpu_time_benchmark(sk_gpu_test::GpuTimer* gpuTimer,
const sk_gpu_test::FenceSync* fenceSync, SkCanvas* canvas,
const SkPicture* skp, std::vector<Sample>* samples) {
using sk_gpu_test::PlatformTimerQuery;
using clock = std::chrono::steady_clock;
const clock::duration sampleDuration = std::chrono::milliseconds(FLAGS_sampleMs);
const clock::duration benchDuration = std::chrono::milliseconds(FLAGS_duration);
if (!gpuTimer->disjointSupport()) {
fprintf(stderr, "WARNING: GPU timer cannot detect disjoint operations; "
"results may be unreliable\n");
}
draw_skp_and_flush(canvas, skp);
GpuSync gpuSync(fenceSync);
gpuTimer->queueStart();
draw_skp_and_flush(canvas, skp);
PlatformTimerQuery previousTime = gpuTimer->queueStop();
gpuSync.syncToPreviousFrame();
clock::time_point now = clock::now();
const clock::time_point endTime = now + benchDuration;
do {
const clock::time_point sampleEndTime = now + sampleDuration;
samples->emplace_back();
Sample& sample = samples->back();
do {
gpuTimer->queueStart();
draw_skp_and_flush(canvas, skp);
PlatformTimerQuery time = gpuTimer->queueStop();
gpuSync.syncToPreviousFrame();
switch (gpuTimer->checkQueryStatus(previousTime)) {
using QueryStatus = sk_gpu_test::GpuTimer::QueryStatus;
case QueryStatus::kInvalid:
exitf(ExitErr::kUnavailable, "GPU timer failed");
case QueryStatus::kPending:
exitf(ExitErr::kUnavailable, "timer query still not ready after fence sync");
case QueryStatus::kDisjoint:
if (FLAGS_verbosity >= 4) {
fprintf(stderr, "discarding timer query due to disjoint operations.\n");
}
break;
case QueryStatus::kAccurate:
sample.fDuration += gpuTimer->getTimeElapsed(previousTime);
++sample.fFrames;
break;
}
gpuTimer->deleteQuery(previousTime);
previousTime = time;
now = clock::now();
} while (now < sampleEndTime || 0 == sample.fFrames);
} while (now < endTime || 0 == samples->size() % 2);
gpuTimer->deleteQuery(previousTime);
}
void print_result(const std::vector<Sample>& samples, const char* config, const char* bench) {
if (0 == (samples.size() % 2)) {
exitf(ExitErr::kSoftware, "attempted to gather stats on even number of samples");
}
Sample accum = Sample();
std::vector<double> values;
values.reserve(samples.size());
for (const Sample& sample : samples) {
accum.fFrames += sample.fFrames;
accum.fDuration += sample.fDuration;
values.push_back(sample.value());
}
std::sort(values.begin(), values.end());
const double accumValue = accum.value();
double variance = 0;
for (double value : values) {
const double delta = value - accumValue;
variance += delta * delta;
}
variance /= values.size();
// Technically, this is the relative standard deviation.
const double stddev = 100/*%*/ * sqrt(variance) / accumValue;
printf(resultFormat, accumValue, values[values.size() / 2], values.back(), values.front(),
stddev, values.size(), FLAGS_sampleMs, FLAGS_gpuClock ? "gpu" : "cpu", Sample::metric(),
config, bench);
printf("\n");
fflush(stdout);
}
int main(int argc, char** argv) {
SkCommandLineFlags::SetUsage("Use skpbench.py instead. "
"You usually don't want to use this program directly.");
SkCommandLineFlags::Parse(argc, argv);
if (!FLAGS_suppressHeader) {
printf("%s\n", header);
}
if (FLAGS_duration <= 0) {
exit(0); // This can be used to print the header and quit.
}
// Parse the config.
const SkCommandLineConfigGpu* config = nullptr; // Initialize for spurious warning.
SkCommandLineConfigArray configs;
ParseConfigs(FLAGS_config, &configs);
if (configs.count() != 1 || !(config = configs[0]->asConfigGpu())) {
exitf(ExitErr::kUsage, "invalid config '%s': must specify one (and only one) GPU config",
join(FLAGS_config).c_str());
}
// Parse the skp.
if (FLAGS_skp.count() != 1) {
exitf(ExitErr::kUsage, "invalid skp '%s': must specify a single skp file, or 'warmup'",
join(FLAGS_skp).c_str());
}
sk_sp<SkPicture> skp;
SkString skpname;
if (0 == strcmp(FLAGS_skp[0], "warmup")) {
skp = create_warmup_skp();
skpname = "warmup";
} else {
const char* skpfile = FLAGS_skp[0];
std::unique_ptr<SkStream> skpstream(SkStream::MakeFromFile(skpfile));
if (!skpstream) {
exitf(ExitErr::kIO, "failed to open skp file %s", skpfile);
}
skp = SkPicture::MakeFromStream(skpstream.get());
if (!skp) {
exitf(ExitErr::kData, "failed to parse skp file %s", skpfile);
}
skpname = SkOSPath::Basename(skpfile);
}
int width = SkTMin(SkScalarCeilToInt(skp->cullRect().width()), 2048),
height = SkTMin(SkScalarCeilToInt(skp->cullRect().height()), 2048);
if (FLAGS_verbosity >= 3 &&
(width != skp->cullRect().width() || height != skp->cullRect().height())) {
fprintf(stderr, "%s is too large (%ix%i), cropping to %ix%i.\n",
skpname.c_str(), SkScalarCeilToInt(skp->cullRect().width()),
SkScalarCeilToInt(skp->cullRect().height()), width, height);
}
// Create a context.
GrContextOptions ctxOptions;
ctxOptions.fGpuPathRenderers = CollectGpuPathRenderersFromFlags();
ctxOptions.fAllowPathMaskCaching = FLAGS_cachePathMasks;
sk_gpu_test::GrContextFactory factory(ctxOptions);
sk_gpu_test::ContextInfo ctxInfo =
factory.getContextInfo(config->getContextType(), config->getContextOverrides());
GrContext* ctx = ctxInfo.grContext();
if (!ctx) {
exitf(ExitErr::kUnavailable, "failed to create context for config %s",
config->getTag().c_str());
}
if (ctx->caps()->maxRenderTargetSize() < SkTMax(width, height)) {
exitf(ExitErr::kUnavailable, "render target size %ix%i not supported by platform (max: %i)",
width, height, ctx->caps()->maxRenderTargetSize());
}
GrPixelConfig grPixConfig = SkImageInfo2GrPixelConfig(config->getColorType(),
config->getColorSpace(),
*ctx->caps());
int supportedSampleCount = ctx->caps()->getSampleCount(config->getSamples(), grPixConfig);
if (supportedSampleCount != config->getSamples()) {
exitf(ExitErr::kUnavailable, "sample count %i not supported by platform",
config->getSamples());
}
sk_gpu_test::TestContext* testCtx = ctxInfo.testContext();
if (!testCtx) {
exitf(ExitErr::kSoftware, "testContext is null");
}
if (!testCtx->fenceSyncSupport()) {
exitf(ExitErr::kUnavailable, "GPU does not support fence sync");
}
// Create a render target.
SkImageInfo info =
SkImageInfo::Make(width, height, config->getColorType(), config->getAlphaType(),
sk_ref_sp(config->getColorSpace()));
uint32_t flags = config->getUseDIText() ? SkSurfaceProps::kUseDeviceIndependentFonts_Flag : 0;
SkSurfaceProps props(flags, SkSurfaceProps::kLegacyFontHost_InitType);
sk_sp<SkSurface> surface =
SkSurface::MakeRenderTarget(ctx, SkBudgeted::kNo, info, config->getSamples(), &props);
if (!surface) {
exitf(ExitErr::kUnavailable, "failed to create %ix%i render target for config %s",
width, height, config->getTag().c_str());
}
// Run the benchmark.
std::vector<Sample> samples;
if (FLAGS_sampleMs > 0) {
// +1 because we might take one more sample in order to have an odd number.
samples.reserve(1 + (FLAGS_duration + FLAGS_sampleMs - 1) / FLAGS_sampleMs);
} else {
samples.reserve(2 * FLAGS_duration);
}
SkCanvas* canvas = surface->getCanvas();
canvas->translate(-skp->cullRect().x(), -skp->cullRect().y());
if (!FLAGS_gpuClock) {
run_benchmark(testCtx->fenceSync(), canvas, skp.get(), &samples);
} else {
if (!testCtx->gpuTimingSupport()) {
exitf(ExitErr::kUnavailable, "GPU does not support timing");
}
run_gpu_time_benchmark(testCtx->gpuTimer(), testCtx->fenceSync(), canvas, skp.get(),
&samples);
}
print_result(samples, config->getTag().c_str(), skpname.c_str());
// Save a proof (if one was requested).
if (!FLAGS_png.isEmpty()) {
SkBitmap bmp;
bmp.allocPixels(info);
if (!surface->getCanvas()->readPixels(bmp, 0, 0)) {
exitf(ExitErr::kUnavailable, "failed to read canvas pixels for png");
}
const SkString &dirname = SkOSPath::Dirname(FLAGS_png[0]),
&basename = SkOSPath::Basename(FLAGS_png[0]);
if (!mkdir_p(dirname)) {
exitf(ExitErr::kIO, "failed to create directory \"%s\" for png", dirname.c_str());
}
if (!sk_tools::write_bitmap_to_disk(bmp, dirname, nullptr, basename)) {
exitf(ExitErr::kIO, "failed to save png to \"%s\"", FLAGS_png[0]);
}
}
exit(0);
}
static void draw_skp_and_flush(SkCanvas* canvas, const SkPicture* skp) {
canvas->drawPicture(skp);
canvas->flush();
}
static sk_sp<SkPicture> create_warmup_skp() {
static constexpr SkRect bounds{0, 0, 500, 500};
SkPictureRecorder recorder;
SkCanvas* recording = recorder.beginRecording(bounds);
recording->clear(SK_ColorWHITE);
SkPaint stroke;
stroke.setStyle(SkPaint::kStroke_Style);
stroke.setStrokeWidth(2);
// Use a big path to (theoretically) warmup the CPU.
SkPath bigPath;
sk_tool_utils::make_big_path(bigPath);
recording->drawPath(bigPath, stroke);
// Use a perlin shader to warmup the GPU.
SkPaint perlin;
perlin.setShader(SkPerlinNoiseShader::MakeTurbulence(0.1f, 0.1f, 1, 0, nullptr));
recording->drawRect(bounds, perlin);
return recorder.finishRecordingAsPicture();
}
bool mkdir_p(const SkString& dirname) {
if (dirname.isEmpty()) {
return true;
}
return mkdir_p(SkOSPath::Dirname(dirname.c_str())) && sk_mkdir(dirname.c_str());
}
static SkString join(const SkCommandLineFlags::StringArray& stringArray) {
SkString joined;
for (int i = 0; i < stringArray.count(); ++i) {
joined.appendf(i ? " %s" : "%s", stringArray[i]);
}
return joined;
}
static void exitf(ExitErr err, const char* format, ...) {
fprintf(stderr, ExitErr::kSoftware == err ? "INTERNAL ERROR: " : "ERROR: ");
va_list args;
va_start(args, format);
vfprintf(stderr, format, args);
va_end(args);
fprintf(stderr, ExitErr::kSoftware == err ? "; this should never happen.\n": ".\n");
exit((int)err);
}
GpuSync::GpuSync(const sk_gpu_test::FenceSync* fenceSync)
: fFenceSync(fenceSync) {
this->updateFence();
}
GpuSync::~GpuSync() {
fFenceSync->deleteFence(fFence);
}
void GpuSync::syncToPreviousFrame() {
if (sk_gpu_test::kInvalidFence == fFence) {
exitf(ExitErr::kSoftware, "attempted to sync with invalid fence");
}
if (!fFenceSync->waitFence(fFence)) {
exitf(ExitErr::kUnavailable, "failed to wait for fence");
}
fFenceSync->deleteFence(fFence);
this->updateFence();
}
void GpuSync::updateFence() {
fFence = fFenceSync->insertFence();
if (sk_gpu_test::kInvalidFence == fFence) {
exitf(ExitErr::kUnavailable, "failed to insert fence");
}
}
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