SkStrikeTest.cpp File Reference

#include "include/core/SkCanvas.h"
#include "include/core/SkData.h"
#include "include/core/SkDrawable.h"
#include "include/core/SkExecutor.h"
#include "include/core/SkFont.h"
#include "include/core/SkFontStyle.h"
#include "include/core/SkMatrix.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPath.h"
#include "include/core/SkPoint.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSurfaceProps.h"
#include "include/core/SkTypeface.h"
#include "include/core/SkTypes.h"
#include "include/private/base/SkMutex.h"
#include "include/private/base/SkTArray.h"
#include "include/private/base/SkTo.h"
#include "src/base/SkArenaAlloc.h"
#include "src/base/SkZip.h"
#include "src/core/SkGlyph.h"
#include "src/core/SkMask.h"
#include "src/core/SkReadBuffer.h"
#include "src/core/SkScalerContext.h"
#include "src/core/SkStrike.h"
#include "src/core/SkStrikeCache.h"
#include "src/core/SkStrikeSpec.h"
#include "src/core/SkTaskGroup.h"
#include "src/core/SkWriteBuffer.h"
#include "src/text/StrikeForGPU.h"
#include "tests/Test.h"
#include "tools/ToolUtils.h"
#include "tools/fonts/FontToolUtils.h"
#include <atomic>
#include <cstddef>
#include <cstdint>
#include <functional>
#include <initializer_list>
#include <memory>
#include <tuple>
#include <vector>

Go to the source code of this file.

Classes
class	Barrier
class	SkGlyphTestPeer
class	SkStrikeTestingPeer

Functions
static std::tuple< SkZip< const SkPackedGlyphID, const SkPoint >, SkZip< SkGlyphID, SkPoint >, SkRect >	prepare_for_mask_drawing (StrikeForGPU *strike, SkZip< const SkGlyphID, const SkPoint > source, SkZip< SkPackedGlyphID, SkPoint > acceptedBuffer, SkZip< SkGlyphID, SkPoint > rejectedBuffer)
	DEF_TEST (SkStrikeMultiThread, Reporter)
	DEF_TEST (SkStrike_FlattenByType, reporter)

Function Documentation

DEF_TEST() [1/2]

DEF_TEST	(	SkStrike_FlattenByType	,
		reporter
	)

Definition at line 198 of file SkStrikeTest.cpp.

                                           {
    std::vector<SkGlyph> imagesToSend;
    std::vector<SkGlyph> pathsToSend;
    std::vector<SkGlyph> drawablesToSend;
    SkArenaAlloc alloc{256};
 
    // Make a mask glyph and put it in the glyphs to send.
    const SkPackedGlyphID maskPackedGlyphID((SkGlyphID)10);
    SkGlyph maskGlyph{maskPackedGlyphID};
    SkGlyphTestPeer::SetGlyph(&maskGlyph);
 
    static constexpr uint8_t X = 0xff;
    static constexpr uint8_t O = 0x00;
    uint8_t imageData[][8] = {
            {X,X,X,X,X,X,X,X},
            {X,O,O,O,O,O,O,X},
            {X,O,O,O,O,O,O,X},
            {X,O,O,O,O,O,O,X},
            {X,O,O,X,X,O,O,X},
            {X,O,O,O,O,O,O,X},
            {X,O,O,O,O,O,O,X},
            {X,O,O,O,O,O,O,X},
            {X,X,X,X,X,X,X,X},
    };
    maskGlyph.setImage(&alloc, imageData);
    imagesToSend.emplace_back(maskGlyph);
 
    // Make a path glyph and put it in the glyphs to send.
    const SkPackedGlyphID pathPackedGlyphID((SkGlyphID)11);
    SkGlyph pathGlyph{pathPackedGlyphID};
    SkGlyphTestPeer::SetGlyph(&pathGlyph);
    SkPath path;
    path.addRect(pathGlyph.rect());
    pathGlyph.setPath(&alloc, &path, false);
    pathsToSend.emplace_back(pathGlyph);
 
    // Make a drawable glyph and put it in the glyphs to send.
    const SkPackedGlyphID drawablePackedGlyphID((SkGlyphID)12);
    SkGlyph drawableGlyph{drawablePackedGlyphID};
    SkGlyphTestPeer::SetGlyph(&drawableGlyph);
    class TestDrawable final : public SkDrawable {
    public:
        TestDrawable(SkRect rect) : fRect(rect) {}
 
    private:
        const SkRect fRect;
        SkRect onGetBounds() override { return fRect;  }
        size_t onApproximateBytesUsed() override {
            return 0;
        }
        void onDraw(SkCanvas* canvas) override {
            SkPaint paint;
            canvas->drawRect(fRect, paint);
        }
    };
 
    sk_sp<SkDrawable> drawable = sk_make_sp<TestDrawable>(drawableGlyph.rect());
    REPORTER_ASSERT(reporter, !drawableGlyph.setDrawableHasBeenCalled());
    drawableGlyph.setDrawable(&alloc, drawable);
    REPORTER_ASSERT(reporter, drawableGlyph.setDrawableHasBeenCalled());
    REPORTER_ASSERT(reporter, drawableGlyph.drawable() != nullptr);
    drawablesToSend.emplace_back(drawableGlyph);
 
    // Test the FlattenGlyphsByType method.
    SkBinaryWriteBuffer writeBuffer({});
    SkStrike::FlattenGlyphsByType(writeBuffer, imagesToSend, pathsToSend, drawablesToSend);
    auto data = writeBuffer.snapshotAsData();
 
    // Make a strike to merge into.
    SkStrikeCache strikeCache;
    auto dstTypeface = ToolUtils::CreateTestTypeface("monospace", SkFontStyle());
    SkFont font{dstTypeface};
    SkStrikeSpec spec = SkStrikeSpec::MakeWithNoDevice(font);
    sk_sp<SkStrike> strike = spec.findOrCreateStrike(&strikeCache);
 
    // Test the mergeFromBuffer method.
    SkReadBuffer readBuffer{data->data(), data->size()};
    strike->mergeFromBuffer(readBuffer);
 
    // Check mask glyph.
    SkGlyph* dstMaskGlyph = SkStrikeTestingPeer::GetGlyph(strike.get(), maskPackedGlyphID);
    REPORTER_ASSERT(reporter, maskGlyph.rect() == dstMaskGlyph->rect());
    REPORTER_ASSERT(reporter, dstMaskGlyph->setImageHasBeenCalled());
    REPORTER_ASSERT(reporter, dstMaskGlyph->image() != nullptr);
 
    // Check path glyph.
    SkGlyph* dstPathGlyph = SkStrikeTestingPeer::GetGlyph(strike.get(), pathPackedGlyphID);
    REPORTER_ASSERT(reporter, pathGlyph.rect() == dstPathGlyph->rect());
    REPORTER_ASSERT(reporter, dstPathGlyph->setPathHasBeenCalled());
    REPORTER_ASSERT(reporter, dstPathGlyph->path() != nullptr);
 
    // Check drawable glyph.
    SkGlyph* dstDrawableGlyph = SkStrikeTestingPeer::GetGlyph(strike.get(),drawablePackedGlyphID);
    REPORTER_ASSERT(reporter, drawableGlyph.rect() == dstDrawableGlyph->rect());
    REPORTER_ASSERT(reporter, dstDrawableGlyph->setDrawableHasBeenCalled());
    REPORTER_ASSERT(reporter, dstDrawableGlyph->drawable() != nullptr);
}

DEF_TEST() [2/2]

DEF_TEST	(	SkStrikeMultiThread	,
		Reporter
	)

Definition at line 109 of file SkStrikeTest.cpp.

                                        {
    sk_sp<SkTypeface> typeface =
            ToolUtils::CreatePortableTypeface("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());
 
    SkStrikeCache strikeCache;
 
    // 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++) {
        SkStrike strike{&strikeCache, strikeSpec, strikeSpec.createScalerContext(), nullptr,
                        nullptr};
 
        auto perThread = [&](int threadIndex) {
            barrier.waitForAll();
 
            auto local = data.subspan(threadIndex * 2, data.size() - kThreadCount * 2);
            for (int i = 0; i < 100; i++) {
                // Accepted buffers.
                STArray<64, SkPackedGlyphID> acceptedPackedGlyphIDs;
                STArray<64, SkPoint> acceptedPositions;
                STArray<64, SkMask::Format> acceptedFormats;
                acceptedPackedGlyphIDs.resize(glyphCount);
                acceptedPositions.resize(glyphCount);
                const auto acceptedBuffer = SkMakeZip(acceptedPackedGlyphIDs, acceptedPositions);
 
                // Rejected buffers.
                STArray<64, SkGlyphID> rejectedGlyphIDs;
                STArray<64, SkPoint> rejectedPositions;
                rejectedGlyphIDs.resize(glyphCount);
                rejectedPositions.resize(glyphCount);
                const auto rejectedBuffer = SkMakeZip(rejectedGlyphIDs, rejectedPositions);
 
                SkZip<const SkGlyphID, const SkPoint> source = local;
 
                auto [accepted, rejected, bounds] =
                prepare_for_mask_drawing(&strike, source, acceptedBuffer, rejectedBuffer);
                source = rejected;
            }
        };
 
        SkTaskGroup(*executor).batch(kThreadCount, perThread);
    }
}

prepare_for_mask_drawing()

static std::tuple< SkZip< const SkPackedGlyphID, const SkPoint >, SkZip< SkGlyphID, SkPoint >, SkRect > prepare_for_mask_drawing ( StrikeForGPU *  strike, SkZip< const SkGlyphID, const SkPoint >  source, SkZip< SkPackedGlyphID, SkPoint >  acceptedBuffer, SkZip< SkGlyphID, SkPoint >  rejectedBuffer  )

static

Definition at line 74 of file SkStrikeTest.cpp.

                                                  {
    SkGlyphRect boundingRect = skglyph::empty_rect();
    int acceptedSize = 0,
        rejectedSize = 0;
    StrikeMutationMonitor m{strike};
    for (auto [glyphID, pos] : source) {
        if (!SkIsFinite(pos.x(), pos.y())) {
            continue;
        }
        const SkPackedGlyphID packedID{glyphID};
        switch (const SkGlyphDigest digest = strike->digestFor(kDirectMask, packedID);
                digest.actionFor(kDirectMask)) {
            case GlyphAction::kAccept: {
                const SkGlyphRect glyphBounds = digest.bounds().offset(pos);
                boundingRect = skglyph::rect_union(boundingRect, glyphBounds);
                acceptedBuffer[acceptedSize++] = std::make_tuple(packedID, glyphBounds.leftTop());
                break;
            }
            case GlyphAction::kReject:
                rejectedBuffer[rejectedSize++] = std::make_tuple(glyphID, pos);
                break;
            default:
                break;
        }
    }
 
    return {acceptedBuffer.first(acceptedSize),
            rejectedBuffer.first(rejectedSize),
            boundingRect.rect()};
}