C++ SkString::append方法代码示例

void PictureBenchmark::run(SkPicture* pict) {
    SkASSERT(pict);
    if (NULL == pict) {
        return;
    }

    SkASSERT(fRenderer != NULL);
    if (NULL == fRenderer) {
        return;
    }

    fRenderer->init(pict);

    // We throw this away to remove first time effects (such as paging in this program)
    fRenderer->setup();
    fRenderer->render(NULL);
    fRenderer->resetState(true);

    bool usingGpu = false;
#if SK_SUPPORT_GPU
    usingGpu = fRenderer->isUsingGpuDevice();
#endif

    uint32_t timerTypes = fTimerTypes;
    if (!usingGpu) {
        timerTypes &= ~TimerData::kGpu_Flag;
    }

    SkString timeFormat;
    if (TimerData::kPerIter_Result == fTimerResult) {
        timeFormat = fRenderer->getPerIterTimeFormat();
    } else {
        timeFormat = fRenderer->getNormalTimeFormat();
    }

    if (fTimeIndividualTiles) {
        TiledPictureRenderer* tiledRenderer = fRenderer->getTiledRenderer();
        SkASSERT(tiledRenderer && tiledRenderer->supportsTimingIndividualTiles());
        if (NULL == tiledRenderer || !tiledRenderer->supportsTimingIndividualTiles()) {
            return;
        }
        int xTiles, yTiles;
        if (!tiledRenderer->tileDimensions(xTiles, yTiles)) {
            return;
        }

        // Insert a newline so that each tile is reported on its own line (separate from the line
        // that describes the skp being run).
        this->logProgress("\n");

        int x, y;
        while (tiledRenderer->nextTile(x, y)) {
            // There are two timers, which will behave slightly differently:
            // 1) longRunningTimer, along with perTileTimerData, will time how long it takes to draw
            // one tile fRepeats times, and take the average. As such, it will not respect thea
            // logPerIter or printMin options, since it does not know the time per iteration. It
            // will also be unable to call flush() for each tile.
            // The goal of this timer is to make up for a system timer that is not precise enough to
            // measure the small amount of time it takes to draw one tile once.
            //
            // 2) perTileTimer, along with perTileTimerData, will record each run separately, and
            // then take the average. As such, it supports logPerIter and printMin options.
            //
            // Although "legal", having two gpu timers running at the same time
            // seems to cause problems (i.e., INVALID_OPERATIONs) on several
            // platforms. To work around this, we disable the gpu timer on the
            // long running timer.
            SkAutoTDelete<BenchTimer> longRunningTimer(this->setupTimer());
            TimerData longRunningTimerData(1);
            SkAutoTDelete<BenchTimer> perTileTimer(this->setupTimer(false));
            TimerData perTileTimerData(fRepeats);
            longRunningTimer->start();
            for (int i = 0; i < fRepeats; ++i) {
                perTileTimer->start();
                tiledRenderer->drawCurrentTile();
                perTileTimer->truncatedEnd();
                tiledRenderer->resetState(false);
                perTileTimer->end();
                SkAssertResult(perTileTimerData.appendTimes(perTileTimer.get()));
            }
            longRunningTimer->truncatedEnd();
            tiledRenderer->resetState(true);
            longRunningTimer->end();
            SkAssertResult(longRunningTimerData.appendTimes(longRunningTimer.get()));

            SkString configName = tiledRenderer->getConfigName();
            configName.appendf(": tile [%i,%i] out of [%i,%i]", x, y, xTiles, yTiles);

            SkString result = perTileTimerData.getResult(timeFormat.c_str(), fTimerResult,
                                                         configName.c_str(), timerTypes);
            result.append("\n");

// TODO(borenet): Turn off per-iteration tile time reporting for now.  Avoiding logging the time
// for every iteration for each tile cuts down on data file size by a significant amount. Re-enable
// this once we're loading the bench data directly into a data store and are no longer generating
// SVG graphs.
#if 0
            this->logProgress(result.c_str());
#endif

//.........这里部分代码省略.........

SkString* SkObjectParser::BitmapToString(const SkBitmap& bitmap) {
    SkString* mBitmap = new SkString("SkBitmap: ");
    mBitmap->append("W: ");
    mBitmap->appendS32(bitmap.width());
    mBitmap->append(" H: ");
    mBitmap->appendS32(bitmap.height());

    const char* gColorTypeStrings[] = {
        "None", "A8", "565", "4444", "RGBA", "BGRA", "Index8", "G8", "RGBAf16"
    };
    static_assert(kLastEnum_SkColorType + 1 == SK_ARRAY_COUNT(gColorTypeStrings),
                  "colortype names do not match colortype enum");

    mBitmap->append(" ColorType: ");
    mBitmap->append(gColorTypeStrings[bitmap.colorType()]);

    if (bitmap.isOpaque()) {
        mBitmap->append(" opaque");
    } else {
        mBitmap->append(" not-opaque");
    }

    if (bitmap.isImmutable()) {
        mBitmap->append(" immutable");
    } else {
        mBitmap->append(" not-immutable");
    }

    if (bitmap.isVolatile()) {
        mBitmap->append(" volatile");
    } else {
        mBitmap->append(" not-volatile");
    }

    mBitmap->append(" genID: ");
    mBitmap->appendS32(bitmap.getGenerationID());

    return mBitmap;
}

static void draw_zero_length_capped_paths_dbl_contour(SkCanvas* canvas, bool aa) {
    canvas->translate(kCellPad, kCellPad);

    SkImageInfo info = canvas->imageInfo().makeWH(kCellWidth, kCellHeight);
    auto surface = canvas->makeSurface(info);
    if (!surface) {
        surface = SkSurface::MakeRasterN32Premul(kCellWidth, kCellHeight);
    }

    SkPaint paint;
    paint.setColor(SK_ColorWHITE);
    paint.setAntiAlias(aa);
    paint.setStyle(SkPaint::kStroke_Style);

    int numFailedTests = 0;
    for (auto cap : kCaps) {
        for (auto width : kWidths) {
            paint.setStrokeCap(cap);
            paint.setStrokeWidth(width);
            canvas->save();

            for (auto firstVerb : kSomeVerbs) {
                for (auto secondVerb : kSomeVerbs) {
                    int expectedCaps = 0;

                    SkString pathStr;
                    pathStr.append("M 9.5 9.5 ");
                    if (firstVerb) {
                        pathStr.append(firstVerb);
                        ++expectedCaps;
                    }
                    pathStr.append("M 40.5 9.5 ");
                    if (secondVerb) {
                        pathStr.append(secondVerb);
                        ++expectedCaps;
                    }

                    SkPath path;
                    SkParsePath::FromSVGString(pathStr.c_str(), &path);

                    surface->getCanvas()->clear(SK_ColorTRANSPARENT);
                    surface->getCanvas()->drawPath(path, paint);
                    auto img = surface->makeImageSnapshot();

                    if (SkPaint::kButt_Cap == cap) {
                        expectedCaps = 0;
                    }

                    if (!draw_path_cell(canvas, img.get(), expectedCaps)) {
                        ++numFailedTests;
                    }
                    canvas->translate(kCellWidth + kCellPad, 0);
                }
            }
            canvas->restore();
            canvas->translate(0, kCellHeight + kCellPad);
        }
    }

    canvas->drawColor(numFailedTests > 0 ? kFailureRed : kSuccessGreen);
}

void SkDebugger::getOverviewText(const SkTDArray<double>* typeTimes,
                                 double totTime,
                                 SkString* overview,
                                 int numRuns) {
    const SkTDArray<SkDrawCommand*>& commands = this->getDrawCommands();

    SkTDArray<int> counts;
    counts.setCount(LAST_DRAWTYPE_ENUM+1);
    for (int i = 0; i < LAST_DRAWTYPE_ENUM+1; ++i) {
        counts[i] = 0;
    }

    for (int i = 0; i < commands.count(); i++) {
        counts[commands[i]->getType()]++;
    }

    overview->reset();
    int total = 0;
#ifdef SK_DEBUG
    double totPercent = 0, tempSum = 0;
#endif
    for (int i = 0; i < LAST_DRAWTYPE_ENUM+1; ++i) {
        if (0 == counts[i]) {
            // if there were no commands of this type then they should've consumed no time
            SkASSERT(NULL == typeTimes || 0.0 == (*typeTimes)[i]);
            continue;
        }

        overview->append(SkDrawCommand::GetCommandString((DrawType) i));
        overview->append(": ");
        overview->appendS32(counts[i]);
        if (NULL != typeTimes && totTime >= 0.0) {
            overview->append(" - ");
            overview->appendf("%.2f", (*typeTimes)[i]/(float)numRuns);
            overview->append("ms");
            overview->append(" - ");
            double percent = 100.0*(*typeTimes)[i]/totTime;
            overview->appendf("%.2f", percent);
            overview->append("%");
#ifdef SK_DEBUG
            totPercent += percent;
            tempSum += (*typeTimes)[i];
#endif
        }
        overview->append("<br/>");
        total += counts[i];
    }
#ifdef SK_DEBUG
    if (NULL != typeTimes) {
        SkASSERT(SkScalarNearlyEqual(SkDoubleToScalar(totPercent),
                                     SkDoubleToScalar(100.0)));
        SkASSERT(SkScalarNearlyEqual(SkDoubleToScalar(tempSum),
                                     SkDoubleToScalar(totTime)));
    }
#endif

    if (totTime > 0.0) {
        overview->append("Total Time: ");
        overview->appendf("%.2f", totTime/(float)numRuns);
        overview->append("ms");
#ifdef SK_DEBUG
        overview->append(" ");
        overview->appendScalar(SkDoubleToScalar(totPercent));
        overview->append("% ");
#endif
        overview->append("<br/>");
    }

    SkString totalStr;
    totalStr.append("Total Draw Commands: ");
    totalStr.appendScalar(SkDoubleToScalar(total));
    totalStr.append("<br/>");
    overview->insert(0, totalStr);

    overview->append("<br/>");
    overview->append("SkPicture Width: ");
    overview->appendS32(pictureWidth());
    overview->append("px<br/>");
    overview->append("SkPicture Height: ");
    overview->appendS32(pictureHeight());
    overview->append("px");
}

void GrGLConvolutionEffect::emitCode(EmitArgs& args) {
    const GrConvolutionEffect& ce = args.fFp.cast<GrConvolutionEffect>();

    GrGLSLUniformHandler* uniformHandler = args.fUniformHandler;
    fImageIncrementUni = uniformHandler->addUniform(kFragment_GrShaderFlag,
                                                    kVec2f_GrSLType, kDefault_GrSLPrecision,
                                                    "ImageIncrement");
    if (ce.useBounds()) {
        fBoundsUni = uniformHandler->addUniform(kFragment_GrShaderFlag,
                                                kVec2f_GrSLType, kDefault_GrSLPrecision,
                                                "Bounds");
    }

    int width = Gr1DKernelEffect::WidthFromRadius(ce.radius());

    int arrayCount = (width + 3) / 4;
    SkASSERT(4 * arrayCount >= width);

    fKernelUni = uniformHandler->addUniformArray(kFragment_GrShaderFlag,
                                                 kVec4f_GrSLType, kDefault_GrSLPrecision,
                                                 "Kernel", arrayCount);

    GrGLSLFPFragmentBuilder* fragBuilder = args.fFragBuilder;
    SkString coords2D = fragBuilder->ensureCoords2D(args.fTransformedCoords[0]);

    fragBuilder->codeAppendf("%s = vec4(0, 0, 0, 0);", args.fOutputColor);

    const GrGLSLShaderVar& kernel = uniformHandler->getUniformVariable(fKernelUni);
    const char* imgInc = uniformHandler->getUniformCStr(fImageIncrementUni);

    fragBuilder->codeAppendf("vec2 coord = %s - %d.0 * %s;", coords2D.c_str(), ce.radius(), imgInc);

    // Manually unroll loop because some drivers don't; yields 20-30% speedup.
    const char* kVecSuffix[4] = { ".x", ".y", ".z", ".w" };
    for (int i = 0; i < width; i++) {
        SkString index;
        SkString kernelIndex;
        index.appendS32(i/4);
        kernel.appendArrayAccess(index.c_str(), &kernelIndex);
        kernelIndex.append(kVecSuffix[i & 0x3]);

        if (ce.useBounds()) {
            // We used to compute a bool indicating whether we're in bounds or not, cast it to a
            // float, and then mul weight*texture_sample by the float. However, the Adreno 430 seems
            // to have a bug that caused corruption.
            const char* bounds = uniformHandler->getUniformCStr(fBoundsUni);
            const char* component = ce.direction() == Gr1DKernelEffect::kY_Direction ? "y" : "x";
            fragBuilder->codeAppendf("if (coord.%s >= %s.x && coord.%s <= %s.y) {",
                                     component, bounds, component, bounds);
        }
        fragBuilder->codeAppendf("\t\t%s += ", args.fOutputColor);
        fragBuilder->appendTextureLookup(args.fTexSamplers[0], "coord");
        fragBuilder->codeAppendf(" * %s;\n", kernelIndex.c_str());
        if (ce.useBounds()) {
            fragBuilder->codeAppend("}");
        }
        fragBuilder->codeAppendf("\t\tcoord += %s;\n", imgInc);
    }

    SkString modulate;
    GrGLSLMulVarBy4f(&modulate, args.fOutputColor, args.fInputColor);
    fragBuilder->codeAppend(modulate.c_str());
}

SkString* SkObjectParser::ScalarToString(SkScalar x, const char* text) {
    SkString* mScalar = new SkString(text);
    mScalar->append(" ");
    mScalar->appendScalar(x);
    return mScalar;
}

void GrVkUniformHandler::appendUniformDecls(GrShaderFlags visibility, SkString* out) const {
    SkASSERT(kVertex_GrShaderFlag == visibility ||
             kGeometry_GrShaderFlag == visibility ||
             kFragment_GrShaderFlag == visibility);

    for (int i = 0; i < fSamplers.count(); ++i) {
        const UniformInfo& sampler = fSamplers[i];
        SkASSERT(sampler.fVariable.getType() == kTexture2DSampler_GrSLType);
        if (visibility == sampler.fVisibility) {
            sampler.fVariable.appendDecl(fProgramBuilder->shaderCaps(), out);
            out->append(";\n");
        }
    }

    for (int i = 0; i < fTexelBuffers.count(); ++i) {
        const UniformInfo& texelBuffer = fTexelBuffers[i];
        if (visibility == texelBuffer.fVisibility) {
            texelBuffer.fVariable.appendDecl(fProgramBuilder->shaderCaps(), out);
            out->append(";\n");
        }
    }

#ifdef SK_DEBUG
    bool firstGeomOffsetCheck = false;
    bool firstFragOffsetCheck = false;
    for (int i = 0; i < fUniforms.count(); ++i) {
        const UniformInfo& localUniform = fUniforms[i];
        if (kVertex_GrShaderFlag == localUniform.fVisibility ||
            kGeometry_GrShaderFlag == localUniform.fVisibility ||
            (kVertex_GrShaderFlag | kGeometry_GrShaderFlag) == localUniform.fVisibility) {
            if (!firstGeomOffsetCheck) {
                // Check to make sure we are starting our offset at 0 so the offset qualifier we
                // set on each variable in the uniform block is valid.
                SkASSERT(0 == localUniform.fUBOffset);
                firstGeomOffsetCheck = true;
            }
        } else {
            SkASSERT(kFragment_GrShaderFlag == localUniform.fVisibility);
            if (!firstFragOffsetCheck) {
                // Check to make sure we are starting our offset at 0 so the offset qualifier we
                // set on each variable in the uniform block is valid.
                SkASSERT(0 == localUniform.fUBOffset);
                firstFragOffsetCheck = true;
            }
        }
    }
#endif

    SkString uniformsString;
    for (int i = 0; i < fUniforms.count(); ++i) {
        const UniformInfo& localUniform = fUniforms[i];
        if (visibility & localUniform.fVisibility) {
            if (GrSLTypeIsFloatType(localUniform.fVariable.getType())) {
                localUniform.fVariable.appendDecl(fProgramBuilder->shaderCaps(), &uniformsString);
                uniformsString.append(";\n");
            }
        }
    }

    if (!uniformsString.isEmpty()) {
        uint32_t uniformBinding;
        const char* stage;
        if (kVertex_GrShaderFlag == visibility) {
            uniformBinding = kGeometryBinding;
            stage = "vertex";
        } else if (kGeometry_GrShaderFlag == visibility) {
            uniformBinding = kGeometryBinding;
            stage = "geometry";
        } else {
            SkASSERT(kFragment_GrShaderFlag == visibility);
            uniformBinding = kFragBinding;
            stage = "fragment";
        }
        out->appendf("layout (set=%d, binding=%d) uniform %sUniformBuffer\n{\n",
                     kUniformBufferDescSet, uniformBinding, stage);
        out->appendf("%s\n};\n", uniformsString.c_str());
    }
}

static bool dump_png(SkBitmap bitmap, const char* path, const char* md5) {
    const int w = bitmap.width(),
              h = bitmap.height();

    // First get the bitmap into N32 color format.  The next step will work only there.
    if (bitmap.colorType() != kN32_SkColorType) {
        SkBitmap n32;
        if (!bitmap.copyTo(&n32, kN32_SkColorType)) {
            return false;
        }
        bitmap = n32;
    }

    // Convert our N32 bitmap into unpremul RGBA for libpng.
    SkAutoTMalloc<uint32_t> rgba(w*h);
    if (!bitmap.readPixels(SkImageInfo::Make(w,h, kRGBA_8888_SkColorType, kUnpremul_SkAlphaType),
                           rgba, 4*w, 0,0)) {
        return false;
    }

    // We don't need bitmap anymore.  Might as well drop our ref.
    bitmap.reset();

    FILE* f = fopen(path, "wb");
    if (!f) { return false; }

    png_structp png = png_create_write_struct(PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr);
    if (!png) {
        fclose(f);
        return false;
    }

    png_infop info = png_create_info_struct(png);
    if (!info) {
        png_destroy_write_struct(&png, &info);
        fclose(f);
        return false;
    }

    SkString description;
    description.append("Key: ");
    for (int i = 0; i < FLAGS_key.count(); i++) {
        description.appendf("%s ", FLAGS_key[i]);
    }
    description.append("Properties: ");
    for (int i = 0; i < FLAGS_properties.count(); i++) {
        description.appendf("%s ", FLAGS_properties[i]);
    }
    description.appendf("MD5: %s", md5);

    png_text text[2];
    text[0].key = (png_charp)"Author";
    text[0].text = (png_charp)"DM dump_png()";
    text[0].compression = PNG_TEXT_COMPRESSION_NONE;
    text[1].key = (png_charp)"Description";
    text[1].text = (png_charp)description.c_str();
    text[1].compression = PNG_TEXT_COMPRESSION_NONE;
    png_set_text(png, info, text, 2);

    png_init_io(png, f);
    png_set_IHDR(png, info, (png_uint_32)w, (png_uint_32)h, 8,
                 PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE,
                 PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
    png_write_info(png, info);
    for (int j = 0; j < h; j++) {
        png_bytep row = (png_bytep)(rgba.get() + w*j);
        png_write_rows(png, &row, 1);
    }
    png_write_end(png, info);

    png_destroy_write_struct(&png, &info);
    fclose(f);
    return true;
}

//.........这里部分代码省略.........
                    comparisonFile.set(argv[i]);
                    continue;
                default:
                    SkDebugf("extra unflagged argument <%s>\n", argv[i]);
                    usage(argv[0]);
                    return kGenericError;
            }
        }

        SkDebugf("Unrecognized argument <%s>\n", argv[i]);
        usage(argv[0]);
        return kGenericError;
    }

    if (numUnflaggedArguments != 2) {
        usage(argv[0]);
        return kGenericError;
    }

    if (listFilenames) {
        printf("Base file is [%s]\n", baseFile.c_str());
    }

    if (listFilenames) {
        printf("Comparison file is [%s]\n", comparisonFile.c_str());
    }

    if (outputDir.isEmpty()) {
        if (listFilenames) {
            printf("Not writing any diffs. No output dir specified.\n");
        }
    } else {
        if (!outputDir.endsWith(PATH_DIV_STR)) {
            outputDir.append(PATH_DIV_STR);
        }
        if (listFilenames) {
            printf("Writing diffs. Output dir is [%s]\n", outputDir.c_str());
        }
    }

    // Some obscure documentation about diff/patch labels:
    //
    // Posix says the format is: <filename><tab><date>
    //     It also states that if a filename contains <tab> or <newline>
    //     the result is implementation defined
    //
    // Svn diff --diff-cmd provides labels of the form: <filename><tab><revision>
    //
    // Git diff --ext-diff does not supply arguments compatible with diff.
    //     However, it does provide the filename directly.
    //     skimagediff_git.sh: skimagediff %2 %5 -L "%1\t(%3)" -L "%1\t(%6)"
    //
    // Git difftool sets $LOCAL, $REMOTE, $MERGED, and $BASE instead of command line parameters.
    //     difftool.<>.cmd: skimagediff $LOCAL $REMOTE -L "$MERGED\t(local)" -L "$MERGED\t(remote)"
    //
    // Diff will write any specified label verbatim. Without a specified label diff will write
    //     <filename><tab><date>
    //     However, diff will encode the filename as a cstring if the filename contains
    //         Any of <space> or <double quote>
    //         A char less than 32
    //         Any escapable character \\, \a, \b, \t, \n, \v, \f, \r
    //
    // Patch decodes:
    //     If first <non-white-space> is <double quote>, parse filename from cstring.
    //     If there is a <tab> after the first <non-white-space>, filename is
    //         [first <non-white-space>, the next run of <white-space> with an embedded <tab>).

void SkSVGPaint::setSave(SkSVGParser& parser) {
    SkTDArray<SkString*> clips;
    SkSVGPaint* walking = parser.fHead;
    int index;
    SkMatrix sum;
    sum.reset();
    while (walking != NULL) {
        for (index = kInitial + 1; index < kTerminal; index++) {
            SkString* lastAttr = (*walking)[index];
            if (lastAttr->size() == 0)
                continue;
            if (index == kTransform) {
                const char* str = lastAttr->c_str();
                SkASSERT(strncmp(str, "matrix(", 7) == 0);
                str += 6;
                const char* strEnd = strrchr(str, ')');
                SkASSERT(strEnd != NULL);
                SkString mat(str, strEnd - str);
                SkSVGParser::ConvertToArray(mat);
                SkScalar values[6];
                SkParse::FindScalars(mat.c_str() + 1, values, 6);
                SkMatrix matrix;
                matrix.reset();
                matrix.setScaleX(values[0]);
                matrix.setSkewY(values[1]);
                matrix.setSkewX(values[2]);
                matrix.setScaleY(values[3]);
                matrix.setTranslateX(values[4]);
                matrix.setTranslateY(values[5]);
                sum.setConcat(matrix, sum);
                continue;
            }
            if ( index == kClipPath)
                *clips.insert(0) = lastAttr;
        }
        walking = walking->fNext;
    }
    if ((sum == parser.fLastTransform) == false) {
        SkMatrix inverse;
        bool success = parser.fLastTransform.invert(&inverse);
        SkASSERT(success == true);
        SkMatrix output;
        output.setConcat(inverse, sum);
        parser.fLastTransform = sum;
        SkString outputStr;
        outputStr.appendUnichar('[');
        outputStr.appendScalar(output.getScaleX());
        outputStr.appendUnichar(',');
        outputStr.appendScalar(output.getSkewX());
        outputStr.appendUnichar(',');
        outputStr.appendScalar(output.getTranslateX());
        outputStr.appendUnichar(',');
        outputStr.appendScalar(output.getSkewY());
        outputStr.appendUnichar(',');
        outputStr.appendScalar(output.getScaleY());
        outputStr.appendUnichar(',');
        outputStr.appendScalar(output.getTranslateY());
        outputStr.appendUnichar(',');
        outputStr.appendScalar(output.getPerspX());
        outputStr.appendUnichar(',');
        outputStr.appendScalar(output.getPerspY());
        outputStr.append(",1]");
        parser._startElement("matrix");
        parser._addAttributeLen("matrix", outputStr.c_str(), outputStr.size());
        parser._endElement();
    }
#if 0   // incomplete
    if (parser.fTransformClips.size() > 0) {
        // need to reset the clip when the 'g' scope is ended
        parser._startElement("add");
        const char* start = strchr(current->f_clipPath.c_str(), '#') + 1;
        SkASSERT(start);
        parser._addAttributeLen("use", start, strlen(start) - 1);
        parser._endElement();   // clip
    }
#endif
}

//.........这里部分代码省略.........
        this->logProgress("\n");

        int x, y;
        while (tiledRenderer->nextTile(x, y)) {
            // There are two timers, which will behave slightly differently:
            // 1) longRunningTimer, along with perTileTimerData, will time how long it takes to draw
            // one tile fRepeats times, and take the average. As such, it will not respect the
            // logPerIter or printMin options, since it does not know the time per iteration. It
            // will also be unable to call flush() for each tile.
            // The goal of this timer is to make up for a system timer that is not precise enough to
            // measure the small amount of time it takes to draw one tile once.
            //
            // 2) perTileTimer, along with perTileTimerData, will record each run separately, and
            // then take the average. As such, it supports logPerIter and printMin options.
            //
            // Although "legal", having two gpu timers running at the same time
            // seems to cause problems (i.e., INVALID_OPERATIONs) on several
            // platforms. To work around this, we disable the gpu timer on the
            // long running timer.
            SkAutoTDelete<BenchTimer> longRunningTimer(this->setupTimer());
            TimerData longRunningTimerData(numOuterLoops);

            for (int outer = 0; outer < numOuterLoops; ++outer) {
                SkAutoTDelete<BenchTimer> perTileTimer(this->setupTimer(false));
                TimerData perTileTimerData(numInnerLoops);

                longRunningTimer->start();
                for (int inner = 0; inner < numInnerLoops; ++inner) {
                    perTileTimer->start();
                    tiledRenderer->drawCurrentTile();
                    perTileTimer->truncatedEnd();
                    tiledRenderer->resetState(false);  // flush & swapBuffers, but don't Finish
                    perTileTimer->end();
                    SkAssertResult(perTileTimerData.appendTimes(perTileTimer.get()));

                    if (fPurgeDecodedTex) {
                        fRenderer->purgeTextures();
                    }
                }
                longRunningTimer->truncatedEnd();
                tiledRenderer->resetState(true);       // flush, swapBuffers and Finish
                longRunningTimer->end();
                SkAssertResult(longRunningTimerData.appendTimes(longRunningTimer.get()));
            }

            SkString configName = tiledRenderer->getConfigName();
            configName.appendf(": tile [%i,%i] out of [%i,%i]", x, y, xTiles, yTiles);

            // TODO(borenet): Turn off per-iteration tile time reporting for now.
            // Avoiding logging the time for every iteration for each tile cuts
            // down on data file size by a significant amount. Re-enable this once
            // we're loading the bench data directly into a data store and are no
            // longer generating SVG graphs.
#if 0
            SkString result = perTileTimerData.getResult(timeFormat.c_str(), fTimerResult,
                                                         configName.c_str(), timerTypes);
            result.append("\n");
            this->logProgress(result.c_str());
#endif

            if (fPurgeDecodedTex) {
                configName.append(" <withPurging>");
            }
            configName.append(" <averaged>");
            SkString longRunningResult = longRunningTimerData.getResult(
                tiledRenderer->getNormalTimeFormat().c_str(),

    static void WriteToDisk(const Task& task,
                            SkString md5,
                            const char* ext,
                            SkStream* data, size_t len,
                            const SkBitmap* bitmap) {
        JsonWriter::BitmapResult result;
        result.name          = task.src->name();
        result.config        = task.sink.tag;
        result.sourceType    = task.src.tag;
        result.sourceOptions = task.src.options;
        result.ext           = ext;
        result.md5           = md5;
        JsonWriter::AddBitmapResult(result);

        // If an MD5 is uninteresting, we want it noted in the JSON file,
        // but don't want to dump it out as a .png (or whatever ext is).
        if (gUninterestingHashes.contains(md5)) {
            return;
        }

        const char* dir = FLAGS_writePath[0];
        if (0 == strcmp(dir, "@")) {  // Needed for iOS.
            dir = FLAGS_resourcePath[0];
        }
        sk_mkdir(dir);

        SkString path;
        if (FLAGS_nameByHash) {
            path = SkOSPath::Join(dir, result.md5.c_str());
            path.append(".");
            path.append(ext);
            if (sk_exists(path.c_str())) {
                return;  // Content-addressed.  If it exists already, we're done.
            }
        } else {
            path = SkOSPath::Join(dir, task.sink.tag);
            sk_mkdir(path.c_str());
            path = SkOSPath::Join(path.c_str(), task.src.tag);
            sk_mkdir(path.c_str());
            if (strcmp(task.src.options, "") != 0) {
              path = SkOSPath::Join(path.c_str(), task.src.options);
              sk_mkdir(path.c_str());
            }
            path = SkOSPath::Join(path.c_str(), task.src->name().c_str());
            path.append(".");
            path.append(ext);
        }

        SkFILEWStream file(path.c_str());
        if (!file.isValid()) {
            fail(SkStringPrintf("Can't open %s for writing.\n", path.c_str()));
            return;
        }

        if (bitmap) {
            // We can't encode A8 bitmaps as PNGs.  Convert them to 8888 first.
            SkBitmap converted;
            if (bitmap->info().colorType() == kAlpha_8_SkColorType) {
                if (!bitmap->copyTo(&converted, kN32_SkColorType)) {
                    fail("Can't convert A8 to 8888.\n");
                    return;
                }
                bitmap = &converted;
            }
            if (!SkImageEncoder::EncodeStream(&file, *bitmap, SkImageEncoder::kPNG_Type, 100)) {
                fail(SkStringPrintf("Can't encode PNG to %s.\n", path.c_str()));
                return;
            }
        } else {
            if (!file.writeStream(data, len)) {
                fail(SkStringPrintf("Can't write to %s.\n", path.c_str()));
                return;
            }
        }
    }

    static void WriteToDisk(const Task& task,
                            SkString md5,
                            const char* ext,
                            SkStream* data, size_t len,
                            const SkBitmap* bitmap) {
        JsonWriter::BitmapResult result;
        result.name          = task.src->name();
        result.config        = task.sink.tag;
        result.sourceType    = task.src.tag;
        result.sourceOptions = task.src.options;
        result.ext           = ext;
        result.md5           = md5;
        JsonWriter::AddBitmapResult(result);

        // If an MD5 is uninteresting, we want it noted in the JSON file,
        // but don't want to dump it out as a .png (or whatever ext is).
        if (gUninterestingHashes.contains(md5)) {
            return;
        }

        const char* dir = FLAGS_writePath[0];
        if (0 == strcmp(dir, "@")) {  // Needed for iOS.
            dir = FLAGS_resourcePath[0];
        }
        sk_mkdir(dir);

        SkString path;
        if (FLAGS_nameByHash) {
            path = SkOSPath::Join(dir, result.md5.c_str());
            path.append(".");
            path.append(ext);
            if (sk_exists(path.c_str())) {
                return;  // Content-addressed.  If it exists already, we're done.
            }
        } else {
            path = SkOSPath::Join(dir, task.sink.tag);
            sk_mkdir(path.c_str());
            path = SkOSPath::Join(path.c_str(), task.src.tag.c_str());
            sk_mkdir(path.c_str());
            if (strcmp(task.src.options.c_str(), "") != 0) {
              path = SkOSPath::Join(path.c_str(), task.src.options.c_str());
              sk_mkdir(path.c_str());
            }
            path = SkOSPath::Join(path.c_str(), task.src->name().c_str());
            path.append(".");
            path.append(ext);
        }

        if (bitmap) {
            if (!dump_png(*bitmap, path.c_str(), result.md5.c_str())) {
                fail(SkStringPrintf("Can't encode PNG to %s.\n", path.c_str()));
                return;
            }
        } else {
            SkFILEWStream file(path.c_str());
            if (!file.isValid()) {
                fail(SkStringPrintf("Can't open %s for writing.\n", path.c_str()));
                return;
            }
            if (!file.writeStream(data, len)) {
                fail(SkStringPrintf("Can't write to %s.\n", path.c_str()));
                return;
            }
        }
    }

static void TestString(skiatest::Reporter* reporter) {
    SkString    a;
    SkString    b((size_t)0);
    SkString    c("");
    SkString    d(NULL, 0);

    REPORTER_ASSERT(reporter, a.isEmpty());
    REPORTER_ASSERT(reporter, a == b && a == c && a == d);

    a.set("hello");
    b.set("hellox", 5);
    c.set(a);
    d.resize(5);
    memcpy(d.writable_str(), "helloz", 5);

    REPORTER_ASSERT(reporter, !a.isEmpty());
    REPORTER_ASSERT(reporter, a.size() == 5);
    REPORTER_ASSERT(reporter, a == b && a == c && a == d);
    REPORTER_ASSERT(reporter, a.equals("hello", 5));
    REPORTER_ASSERT(reporter, a.equals("hello"));
    REPORTER_ASSERT(reporter, !a.equals("help"));

    SkString    e(a);
    SkString    f("hello");
    SkString    g("helloz", 5);

    REPORTER_ASSERT(reporter, a == e && a == f && a == g);

    b.set("world");
    c = b;
    REPORTER_ASSERT(reporter, a != b && a != c && b == c);

    a.append(" world");
    e.append("worldz", 5);
    e.insert(5, " ");
    f.set("world");
    f.prepend("hello ");
    REPORTER_ASSERT(reporter, a.equals("hello world") && a == e && a == f);

    a.reset();
    b.resize(0);
    REPORTER_ASSERT(reporter, a.isEmpty() && b.isEmpty() && a == b);

    a.set("a");
    a.set("ab");
    a.set("abc");
    a.set("abcd");

    a.set("");
    a.appendS64(72036854775808LL, 0);
    REPORTER_ASSERT(reporter, a.equals("72036854775808"));

    a.set("");
    a.appendS64(-1844674407370LL, 0);
    REPORTER_ASSERT(reporter, a.equals("-1844674407370"));

    a.set("");
    a.appendS64(73709551616LL, 15);
    REPORTER_ASSERT(reporter, a.equals("000073709551616"));

    a.set("");
    a.appendS64(-429496729612LL, 15);
    REPORTER_ASSERT(reporter, a.equals("-000429496729612"));

    static const struct {
        SkScalar    fValue;
        const char* fString;
    } gRec[] = {
        { 0,            "0" },
        { SK_Scalar1,   "1" },
        { -SK_Scalar1,  "-1" },
        { SK_Scalar1/2, "0.5" },
#ifdef SK_SCALAR_IS_FLOAT
  #ifdef SK_BUILD_FOR_WIN
        { 3.4028234e38f,   "3.4028235e+038" },
        { -3.4028234e38f, "-3.4028235e+038" },
  #else
        { 3.4028234e38f,   "3.4028235e+38" },
        { -3.4028234e38f, "-3.4028235e+38" },
  #endif
#endif
    };
    for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); i++) {
        a.reset();
        a.appendScalar(gRec[i].fValue);
        REPORTER_ASSERT(reporter, a.size() <= SkStrAppendScalar_MaxSize);
//        SkDebugf(" received <%s> expected <%s>\n", a.c_str(), gRec[i].fString);
        REPORTER_ASSERT(reporter, a.equals(gRec[i].fString));
    }

    REPORTER_ASSERT(reporter, SkStringPrintf("%i", 0).equals("0"));

    char buffer [40];
    memset(buffer, 'a', 40);
    REPORTER_ASSERT(reporter, buffer[18] == 'a');
    REPORTER_ASSERT(reporter, buffer[19] == 'a');
    REPORTER_ASSERT(reporter, buffer[20] == 'a');
    printfAnalog(buffer, 20, "%30d", 0);
    REPORTER_ASSERT(reporter, buffer[18] == ' ');
    REPORTER_ASSERT(reporter, buffer[19] == 0);
//.........这里部分代码省略.........

bool SkAnimator::onEvent(const SkEvent& evt) {
#ifdef SK_DEBUG
    SkAnimator* root = fMaker->getRoot();
    if (root == NULL)
        root = this;
    if (root->isTrackingEvents())
        root->eventDone(evt);
#endif
    if (evt.isType(SK_EventType_OnEnd)) {
        SkEventState eventState;
        bool success = evt.findPtr("anim", (void**) &eventState.fDisplayable);
        SkASSERT(success);
        success = evt.findS32("time", (int32_t*) &fMaker->fEnableTime);
        SkASSERT(success);
        fMaker->fAdjustedStart = fMaker->getAppTime() - fMaker->fEnableTime;
        fMaker->fEvents.doEvent(*fMaker, SkDisplayEvent::kOnEnd, &eventState);
        fMaker->fAdjustedStart = 0;
        goto inval;
    }
    if (evt.isType(SK_EventType_Delay)) {
        fMaker->doDelayedEvent();
        goto inval;
    }
    {
        const char* id = evt.findString("id");
        if (id == NULL)
            return false;
        SkDisplayable** firstMovie = fMaker->fMovies.begin();
        SkDisplayable** endMovie = fMaker->fMovies.end();
        for (SkDisplayable** ptr = firstMovie; ptr < endMovie; ptr++) {
            SkDisplayMovie* movie = (SkDisplayMovie*) *ptr;
            movie->doEvent(evt);
        }
        {
            SkDisplayable* event;
            if (fMaker->find(id, &event) == false)
                return false;
    #if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
            SkString debugOut;
            SkMSec realTime = fMaker->getAppTime();
            debugOut.appendS32(realTime - fMaker->fDebugTimeBase);
            debugOut.append(" onEvent id=");
            debugOut.append(id);
    #endif
            SkMSec time = evt.getFast32();
            if (time != 0) {
                SkMSec app  = fMaker->getAppTime();
                fMaker->setEnableTime(app, time);
    #if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
                debugOut.append(" time=");
                debugOut.appendS32(time - fMaker->fDebugTimeBase);
                debugOut.append(" adjust=");
                debugOut.appendS32(fMaker->fAdjustedStart);
    #endif
            }
    #if defined SK_DEBUG && defined SK_DEBUG_ANIMATION_TIMING
            SkDebugf("%s\n", debugOut.c_str());
    #endif
            SkASSERT(event->isEvent());
            SkDisplayEvent* displayEvent = (SkDisplayEvent*) event;
            displayEvent->populateInput(*fMaker, evt);
            displayEvent->enableEvent(*fMaker);
        }
    }
inval:
    fMaker->notifyInval();
    return true;
}