You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
86 lines
2.7 KiB
86 lines
2.7 KiB
/*
|
|
* Copyright 2020 Google Inc.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license that can be
|
|
* found in the LICENSE file.
|
|
*/
|
|
|
|
#include "include/core/SkFont.h"
|
|
#include "include/core/SkTypeface.h"
|
|
#include "src/core/SkScalerCache.h"
|
|
#include "src/core/SkStrikeSpec.h"
|
|
#include "src/core/SkTaskGroup.h"
|
|
#include "tests/Test.h"
|
|
#include "tools/ToolUtils.h"
|
|
|
|
#include <atomic>
|
|
|
|
class Barrier {
|
|
public:
|
|
Barrier(int threadCount) : fThreadCount(threadCount) { }
|
|
void waitForAll() {
|
|
fThreadCount -= 1;
|
|
while (fThreadCount > 0) { }
|
|
}
|
|
|
|
private:
|
|
std::atomic<int> fThreadCount;
|
|
};
|
|
|
|
DEF_TEST(SkScalerCacheMultiThread, Reporter) {
|
|
sk_sp<SkTypeface> typeface =
|
|
ToolUtils::create_portable_typeface("serif", SkFontStyle::Italic());
|
|
static constexpr int kThreadCount = 4;
|
|
|
|
Barrier barrier{kThreadCount};
|
|
|
|
SkFont font;
|
|
font.setEdging(SkFont::Edging::kAntiAlias);
|
|
font.setSubpixel(true);
|
|
font.setTypeface(typeface);
|
|
|
|
SkGlyphID glyphs['z'];
|
|
SkPoint pos['z'];
|
|
for (int c = ' '; c < 'z'; c++) {
|
|
glyphs[c] = font.unicharToGlyph(c);
|
|
pos[c] = {30.0f * c + 30, 30.0f};
|
|
}
|
|
constexpr size_t glyphCount = 'z' - ' ';
|
|
auto data = SkMakeZip(glyphs, pos).subspan(SkTo<int>(' '), glyphCount);
|
|
|
|
SkPaint defaultPaint;
|
|
SkStrikeSpec strikeSpec = SkStrikeSpec::MakeMask(
|
|
font, defaultPaint, SkSurfaceProps(0, kUnknown_SkPixelGeometry),
|
|
SkScalerContextFlags::kNone, SkMatrix::I());
|
|
|
|
// Make our own executor so the --threads parameter doesn't mess things up.
|
|
auto executor = SkExecutor::MakeFIFOThreadPool(kThreadCount);
|
|
for (int tries = 0; tries < 100; tries++) {
|
|
SkScalerContextEffects effects;
|
|
std::unique_ptr<SkScalerContext> ctx{
|
|
typeface->createScalerContext(effects, &strikeSpec.descriptor())};
|
|
SkScalerCache scalerCache{strikeSpec.descriptor(), std::move(ctx)};
|
|
|
|
auto perThread = [&](int threadIndex) {
|
|
barrier.waitForAll();
|
|
|
|
auto local = data.subspan(threadIndex * 2, data.size() - kThreadCount * 2);
|
|
for (int i = 0; i < 100; i++) {
|
|
SkDrawableGlyphBuffer drawable;
|
|
SkSourceGlyphBuffer rejects;
|
|
|
|
drawable.ensureSize(glyphCount);
|
|
rejects.setSource(local);
|
|
|
|
drawable.startBitmapDevice(rejects.source(), {0, 0}, SkMatrix::I(),
|
|
scalerCache.roundingSpec());
|
|
scalerCache.prepareForMaskDrawing(&drawable, &rejects);
|
|
rejects.flipRejectsToSource();
|
|
drawable.reset();
|
|
}
|
|
};
|
|
|
|
SkTaskGroup(*executor).batch(kThreadCount, perThread);
|
|
}
|
|
}
|