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C++ GrContext::drawFontCache方法代码示例

本文整理汇总了C++中GrContext::drawFontCache方法的典型用法代码示例。如果您正苦于以下问题:C++ GrContext::drawFontCache方法的具体用法?C++ GrContext::drawFontCache怎么用?C++ GrContext::drawFontCache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GrContext的用法示例。


在下文中一共展示了GrContext::drawFontCache方法的1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: onDrawContent

    void onDrawContent(SkCanvas* canvas) override {
        SkPaint paint;
        SkSafeUnref(paint.setTypeface(SkTypeface::CreateFromFile("/skimages/samplefont.ttf")));
        paint.setAntiAlias(true);
        paint.setFilterQuality(kMedium_SkFilterQuality);

        SkString outString("fps: ");
        fTimer.end();

        // TODO: generalize this timing code in utils
        fTimes[fCurrentTime] = (float)(fTimer.fWall);
        fCurrentTime = (fCurrentTime + 1) & 0x1f;

        float meanTime = 0.0f;
        for (int i = 0; i < 32; ++i) {
            meanTime += fTimes[i];
        }
        meanTime /= 32.f;
        SkScalar fps = 1000.f / meanTime;
        outString.appendScalar(fps);
        outString.append(" ms: ");
        outString.appendScalar(meanTime);

        SkString modeString("Text scale: ");
        modeString.appendU32(fSizeScale);
        modeString.append("x");

        fTimer.start();

        canvas->save();

#if SK_SUPPORT_GPU
        SkBaseDevice* device = canvas->getDevice_just_for_deprecated_compatibility_testing();
        GrContext* grContext = canvas->getGrContext();
        if (grContext) {
            grContext->drawFontCache(SkRect::MakeXYWH(512, 10, 512, 512), kA8_GrMaskFormat, paint,
                                     reinterpret_cast<SkGpuDevice*>(device)->accessRenderTarget());
        }
#endif
        canvas->translate(180, 180);
        canvas->rotate(fRotation);
        canvas->scale(fScale, fScale);
        canvas->translate(-180, -180);

        const char* text = "Hamburgefons";
        size_t length = strlen(text);

        SkScalar y = SkIntToScalar(0);
        for (int i = 12; i <= 26; i++) {
            paint.setTextSize(SkIntToScalar(i*fSizeScale));
            y += paint.getFontSpacing();
            DrawTheText(canvas, text, length, SkIntToScalar(110), y, paint);
        }
        canvas->restore();

        paint.setTextSize(16);
//        canvas->drawText(outString.c_str(), outString.size(), 512.f, 540.f, paint);
        canvas->drawText(modeString.c_str(), modeString.size(), 768.f, 540.f, paint);
    }
开发者ID:Liuxiaochuan,项目名称:skia,代码行数:59,代码来源:SampleAnimatedText.cpp


注:本文中的GrContext::drawFontCache方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。