本文整理汇总了C++中Benchmark::draw方法的典型用法代码示例。如果您正苦于以下问题：C++ Benchmark::draw方法的具体用法？C++ Benchmark::draw怎么用？C++ Benchmark::draw使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Benchmark的用法示例。
在下文中一共展示了Benchmark::draw方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: paintEvent
void BenchWidget::paintEvent(QPaintEvent *)
{
if (m_done)
return;
QPainter p(this);
m_benchmark->begin(&p, 100);
PaintingRectAdjuster adjuster;
adjuster.setNewBenchmark(m_benchmark);
adjuster.reset(rect());
for (int i = 0; i < 100; ++i)
m_benchmark->draw(&p, adjuster.newPaintingRect(), i);
m_benchmark->end(&p);
++m_iteration;
uint currentElapsed = timer.isNull() ? 0 : timer.elapsed();
timer.restart();
m_total += currentElapsed;
// warm up for at most 5 iterations or half a second
if (m_iteration >= 5 || m_total >= 500) {
iterationTimes << currentElapsed;
if (iterationTimes.size() >= 5) {
qreal mean = 0;
qreal stddev = 0;
uint min = INT_MAX;
for (int i = 0; i < iterationTimes.size(); ++i) {
mean += iterationTimes.at(i);
min = qMin(min, iterationTimes.at(i));
}
mean /= qreal(iterationTimes.size());
for (int i = 0; i < iterationTimes.size(); ++i) {
qreal delta = iterationTimes.at(i) - mean;
stddev += delta * delta;
}
stddev = qSqrt(stddev / iterationTimes.size());
stddev = 100 * stddev / mean;
// do 50 iterations, break earlier if we spend more than 5 seconds or have a low std deviation after 2 seconds
if (iterationTimes.size() >= 50 || m_total >= 5000 || (m_total >= 2000 && stddev < 4)) {
m_result = min;
m_done = true;
return;
}
}
}
}示例2: tool_main
//.........这里部分代码省略.........
}
glContext = gContextFactory.getGLContext(config.contextType);
}
#endif
SkAutoTUnref<SkCanvas> canvas;
SkAutoTUnref<SkPicture> recordFrom;
SkPictureRecorder recorderTo;
const SkIPoint dim = bench->getSize();
SkAutoTUnref<SkSurface> surface;
if (Benchmark::kNonRendering_Backend != config.backend) {
surface.reset(make_surface(config.fColorType,
dim,
config.backend,
config.sampleCount,
context));
if (!surface.get()) {
logger.logError(SkStringPrintf(
"Device creation failure for config %s. Will skip.\n", config.name));
continue;
}
switch(benchMode) {
case kDeferredSilent_BenchMode:
case kDeferred_BenchMode:
canvas.reset(SkDeferredCanvas::Create(surface.get()));
break;
case kRecord_BenchMode:
canvas.reset(SkRef(recorderTo.beginRecording(dim.fX, dim.fY)));
break;
case kPictureRecord_BenchMode: {
SkPictureRecorder recorderFrom;
bench->draw(1, recorderFrom.beginRecording(dim.fX, dim.fY));
recordFrom.reset(recorderFrom.endRecording());
canvas.reset(SkRef(recorderTo.beginRecording(dim.fX, dim.fY)));
break;
}
case kNormal_BenchMode:
canvas.reset(SkRef(surface->getCanvas()));
break;
default:
SkASSERT(false);
}
}
if (NULL != canvas) {
canvas->clear(SK_ColorWHITE);
if (FLAGS_clip) {
perform_clip(canvas, dim.fX, dim.fY);
}
if (FLAGS_scale) {
perform_scale(canvas, dim.fX, dim.fY);
}
if (FLAGS_rotate) {
perform_rotate(canvas, dim.fX, dim.fY);
}
}
if (!loggedBenchName) {
loggedBenchName = true;
writer.bench(bench->getName(), dim.fX, dim.fY);
}
#if SK_SUPPORT_GPU
SkGLContextHelper* contextHelper = NULL;