FontHostStreamTest.cpp File Reference

#include "include/core/SkBitmap.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkFont.h"
#include "include/core/SkFontMgr.h"
#include "include/core/SkFontStyle.h"
#include "include/core/SkGraphics.h"
#include "include/core/SkPaint.h"
#include "include/core/SkPoint.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkStream.h"
#include "include/core/SkTypeface.h"
#include "include/core/SkTypes.h"
#include "src/core/SkFontDescriptor.h"
#include "src/core/SkFontPriv.h"
#include "tests/Test.h"
#include "tools/fonts/FontToolUtils.h"
#include <memory>
#include <utility>

Go to the source code of this file.

Functions
static void	create (SkBitmap *bm, SkIRect bound)
static void	drawBG (SkCanvas *canvas)
static bool	compare (const SkBitmap &ref, const SkIRect &iref, const SkBitmap &test, const SkIRect &itest)
	DEF_TEST (FontHostStream, reporter)

Variables
static const SkColor	bgColor = SK_ColorWHITE

Function Documentation

compare()

static bool compare ( const SkBitmap &  ref, const SkIRect &  iref, const SkBitmap &  test, const SkIRect &  itest  )

static

Assumes that the ref draw was completely inside ref canvas – implies that everything outside is "bgColor". Checks that all overlap is the same and that all non-overlap on the ref is "bgColor".

Definition at line 45 of file FontHostStreamTest.cpp.

{
    const int xOff = itest.fLeft - iref.fLeft;
    const int yOff = itest.fTop - iref.fTop;
 
    for (int y = 0; y < test.height(); ++y) {
        for (int x = 0; x < test.width(); ++x) {
            SkColor testColor = test.getColor(x, y);
            int refX = x + xOff;
            int refY = y + yOff;
            SkColor refColor;
            if (refX >= 0 && refX < ref.width() &&
                refY >= 0 && refY < ref.height())
            {
                refColor = ref.getColor(refX, refY);
            } else {
                refColor = bgColor;
            }
            if (refColor != testColor) {
                return false;
            }
        }
    }
    return true;
}

create()

static void create ( SkBitmap *  bm, SkIRect  bound  )

static

Definition at line 32 of file FontHostStreamTest.cpp.

                                                {
    bm->allocN32Pixels(bound.width(), bound.height());
}

DEF_TEST()

DEF_TEST	(	FontHostStream	,
		reporter
	)

Definition at line 72 of file FontHostStreamTest.cpp.

                                   {
    {
        SkPaint paint;
        paint.setColor(SK_ColorGRAY);
 
        SkFont font(ToolUtils::CreateTestTypeface("Georgia", SkFontStyle()), 30);
        font.setEdging(SkFont::Edging::kAlias);
 
        const SkIRect origRect = SkIRect::MakeWH(64, 64);
        SkBitmap origBitmap;
        create(&origBitmap, origRect);
        SkCanvas origCanvas(origBitmap);
 
        SkPoint point = SkPoint::Make(24, 32);
 
        // Test: origTypeface and streamTypeface from orig data draw the same
        drawBG(&origCanvas);
        origCanvas.drawString("A", point.fX, point.fY, font, paint);
 
        sk_sp<SkFontMgr> mgr = ToolUtils::TestFontMgr();
        sk_sp<SkTypeface> typeface = font.refTypeface();
        SkASSERT_RELEASE(typeface);
 
        {
            SkDynamicMemoryWStream wstream;
            typeface->serialize(&wstream, SkTypeface::SerializeBehavior::kDoIncludeData);
            std::unique_ptr<SkStreamAsset> stream = wstream.detachAsStream();
            sk_sp<SkTypeface> deserializedTypeface = SkTypeface::MakeDeserialize(&*stream, mgr);
            if (!deserializedTypeface) {
                REPORTER_ASSERT(reporter, deserializedTypeface);
                return;
            }
 
            SkFontDescriptor desc;
            bool mustSerializeData = false;
            deserializedTypeface->getFontDescriptor(&desc, &mustSerializeData);
            REPORTER_ASSERT(reporter, mustSerializeData);
 
            SkBitmap deserializedBitmap;
            create(&deserializedBitmap, origRect);
            SkCanvas deserializedCanvas(deserializedBitmap);
 
            font.setTypeface(deserializedTypeface);
            drawBG(&deserializedCanvas);
            deserializedCanvas.drawString("A", point.fX, point.fY, font, paint);
 
            REPORTER_ASSERT(reporter, compare(origBitmap, origRect, deserializedBitmap, origRect));
        }
 
        {
            int ttcIndex;
            std::unique_ptr<SkStreamAsset> fontData = typeface->openStream(&ttcIndex);
            if (!fontData) {
                REPORTER_ASSERT(reporter, fontData);
                return;
            }
 
            sk_sp<SkTypeface> streamTypeface(mgr->makeFromStream(std::move(fontData), 0));
            if (!streamTypeface) {
                // TODO: enable assert after SkTypeface::MakeFromStream uses factories
                //REPORTER_ASSERT(reporter, streamTypeface);
                return;
            }
 
            SkBitmap streamBitmap;
            create(&streamBitmap, origRect);
            SkCanvas streamCanvas(streamBitmap);
 
            SkFontDescriptor desc;
            bool mustSerializeData = false;
            streamTypeface->getFontDescriptor(&desc, &mustSerializeData);
            REPORTER_ASSERT(reporter, mustSerializeData);
 
            font.setTypeface(streamTypeface);
            drawBG(&streamCanvas);
            streamCanvas.drawString("A", point.fX, point.fY, font, paint);
 
            REPORTER_ASSERT(reporter, compare(origBitmap, origRect, streamBitmap, origRect));
        }
    }
    //Make sure the typeface is deleted and removed.
    SkGraphics::PurgeFontCache();
}

drawBG()

static void drawBG ( SkCanvas *  canvas )

static

Definition at line 36 of file FontHostStreamTest.cpp.

                                     {
    canvas->drawColor(bgColor);
}

Variable Documentation

bgColor

const SkColor bgColor = SK_ColorWHITE

static

Definition at line 30 of file FontHostStreamTest.cpp.