C++ SkString类代码示例

SkString GrDrawTargetCaps::dump() const {
    SkString r;
    static const char* gNY[] = {"NO", "YES"};
    r.appendf("MIP Map Support                    : %s\n", gNY[fMipMapSupport]);
    r.appendf("NPOT Texture Tile Support          : %s\n", gNY[fNPOTTextureTileSupport]);
    r.appendf("Two Sided Stencil Support          : %s\n", gNY[fTwoSidedStencilSupport]);
    r.appendf("Stencil Wrap Ops  Support          : %s\n", gNY[fStencilWrapOpsSupport]);
    r.appendf("Shader Derivative Support          : %s\n", gNY[fShaderDerivativeSupport]);
    r.appendf("Geometry Shader Support            : %s\n", gNY[fGeometryShaderSupport]);
    r.appendf("Dual Source Blending Support       : %s\n", gNY[fDualSourceBlendingSupport]);
    r.appendf("Path Rendering Support             : %s\n", gNY[fPathRenderingSupport]);
    r.appendf("Dst Read In Shader Support         : %s\n", gNY[fDstReadInShaderSupport]);
    r.appendf("Discard Render Target Support      : %s\n", gNY[fDiscardRenderTargetSupport]);
    r.appendf("Reuse Scratch Textures             : %s\n", gNY[fReuseScratchTextures]);
    r.appendf("Gpu Tracing Support                : %s\n", gNY[fGpuTracingSupport]);
    r.appendf("Compressed Update Support          : %s\n", gNY[fCompressedTexSubImageSupport]);
    r.appendf("Oversized Stencil Support          : %s\n", gNY[fOversizedStencilSupport]);
    r.appendf("Draw Instead of Clear [workaround] : %s\n", gNY[fUseDrawInsteadOfClear]);

    r.appendf("Max Texture Size                   : %d\n", fMaxTextureSize);
    r.appendf("Max Render Target Size             : %d\n", fMaxRenderTargetSize);
    r.appendf("Max Sample Count                   : %d\n", fMaxSampleCount);

    r.appendf("Map Buffer Support                 : %s\n",
              map_flags_to_string(fMapBufferFlags).c_str());

    static const char* kConfigNames[] = {
        "Unknown",  // kUnknown_GrPixelConfig
        "Alpha8",   // kAlpha_8_GrPixelConfig,
        "Index8",   // kIndex_8_GrPixelConfig,
        "RGB565",   // kRGB_565_GrPixelConfig,
        "RGBA444",  // kRGBA_4444_GrPixelConfig,
        "RGBA8888", // kRGBA_8888_GrPixelConfig,
        "BGRA8888", // kBGRA_8888_GrPixelConfig,
        "SRGBA8888",// kSRGBA_8888_GrPixelConfig,
        "ETC1",     // kETC1_GrPixelConfig,
        "LATC",     // kLATC_GrPixelConfig,
        "R11EAC",   // kR11_EAC_GrPixelConfig,
        "ASTC12x12",// kASTC_12x12_GrPixelConfig,
        "RGBAFloat",// kRGBA_float_GrPixelConfig
        "AlphaHalf",// kAlpha_half_GrPixelConfig
    };
    GR_STATIC_ASSERT(0  == kUnknown_GrPixelConfig);
    GR_STATIC_ASSERT(1  == kAlpha_8_GrPixelConfig);
    GR_STATIC_ASSERT(2  == kIndex_8_GrPixelConfig);
    GR_STATIC_ASSERT(3  == kRGB_565_GrPixelConfig);
    GR_STATIC_ASSERT(4  == kRGBA_4444_GrPixelConfig);
    GR_STATIC_ASSERT(5  == kRGBA_8888_GrPixelConfig);
    GR_STATIC_ASSERT(6  == kBGRA_8888_GrPixelConfig);
    GR_STATIC_ASSERT(7  == kSRGBA_8888_GrPixelConfig);
    GR_STATIC_ASSERT(8  == kETC1_GrPixelConfig);
    GR_STATIC_ASSERT(9  == kLATC_GrPixelConfig);
    GR_STATIC_ASSERT(10  == kR11_EAC_GrPixelConfig);
    GR_STATIC_ASSERT(11 == kASTC_12x12_GrPixelConfig);
    GR_STATIC_ASSERT(12 == kRGBA_float_GrPixelConfig);
    GR_STATIC_ASSERT(13 == kAlpha_half_GrPixelConfig);
    GR_STATIC_ASSERT(SK_ARRAY_COUNT(kConfigNames) == kGrPixelConfigCnt);

    SkASSERT(!fConfigRenderSupport[kUnknown_GrPixelConfig][0]);
    SkASSERT(!fConfigRenderSupport[kUnknown_GrPixelConfig][1]);

    for (size_t i = 1; i < SK_ARRAY_COUNT(kConfigNames); ++i)  {
        r.appendf("%s is renderable: %s, with MSAA: %s\n",
                  kConfigNames[i],
                  gNY[fConfigRenderSupport[i][0]],
                  gNY[fConfigRenderSupport[i][1]]);
    }

    SkASSERT(!fConfigTextureSupport[kUnknown_GrPixelConfig]);

    for (size_t i = 1; i < SK_ARRAY_COUNT(kConfigNames); ++i)  {
        r.appendf("%s is uploadable to a texture: %s\n",
                  kConfigNames[i],
                  gNY[fConfigTextureSupport[i]]);
    }

    r.appendf("Shader Float Precisions (varies: %s):\n", gNY[fShaderPrecisionVaries]);

    for (int s = 0; s < kGrShaderTypeCount; ++s) {
        GrShaderType shaderType = static_cast<GrShaderType>(s);
        r.appendf("\t%s:\n", shader_type_to_string(shaderType));
        for (int p = 0; p < kGrSLPrecisionCount; ++p) {
            if (fFloatPrecisions[s][p].supported()) {
                GrSLPrecision precision = static_cast<GrSLPrecision>(p);
                r.appendf("\t\t%s: log_low: %d log_high: %d bits: %d\n",
                          precision_to_string(precision),
                          fFloatPrecisions[s][p].fLogRangeLow,
                          fFloatPrecisions[s][p].fLogRangeHigh,
                          fFloatPrecisions[s][p].fBits);
            }
        }
    }

    return r;
}

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

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

    fRenderer->init(pict, NULL, NULL, NULL, false);

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

    if (fPreprocess) {
        if (NULL != fRenderer->getCanvas()) {
            fRenderer->getCanvas()->EXPERIMENTAL_optimize(pict);
        }
    }

    fRenderer->render(NULL);
    fRenderer->resetState(true);   // flush, swapBuffers and Finish

    if (fPreprocess) {
        if (NULL != fRenderer->getCanvas()) {
            fRenderer->getCanvas()->EXPERIMENTAL_purge(pict);
        }
    }

    if (fPurgeDecodedTex) {
        fRenderer->purgeTextures();
    }

    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();
    }

    static const int kNumInnerLoops = 10;
    int numOuterLoops = 1;
    int numInnerLoops = fRepeats;

    if (TimerData::kPerIter_Result == fTimerResult && fRepeats > 1) {
        // interpret this flag combination to mean: generate 'fRepeats'
        // numbers by averaging each rendering 'kNumInnerLoops' times
        numOuterLoops = fRepeats;
        numInnerLoops = kNumInnerLoops;
    }

    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;
        }

        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<Timer> longRunningTimer(this->setupTimer());
            TimerData longRunningTimerData(numOuterLoops);

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

                longRunningTimer->start();
                for (int inner = 0; inner < numInnerLoops; ++inner) {
//.........这里部分代码省略.........

    virtual void onDraw(SkCanvas* canvas) {
        static const int kBmpSize = 2048;
        if (fLargeBitmap.isNull()) {
            makebm(&fLargeBitmap, kBmpSize, kBmpSize);
        }
        SkRect dstRect = { 0, 0, SkIntToScalar(64), SkIntToScalar(64)};
        static const int kMaxSrcRectSize = 1 << (SkNextLog2(kBmpSize) + 2);

        static const int kPadX = 30;
        static const int kPadY = 40;
        SkPaint paint;
        paint.setAlpha(0x20);
        canvas->drawBitmapRect(fLargeBitmap, NULL,
                               SkRect::MakeWH(gSize * SK_Scalar1,
                                              gSize * SK_Scalar1),
                               &paint);
        canvas->translate(SK_Scalar1 * kPadX / 2,
                          SK_Scalar1 * kPadY / 2);
        SkPaint blackPaint;
        SkScalar titleHeight = SK_Scalar1 * 24;
        blackPaint.setColor(SK_ColorBLACK);
        blackPaint.setTextSize(titleHeight);
        blackPaint.setAntiAlias(true);
        SkString title;
        title.printf("Bitmap size: %d x %d", kBmpSize, kBmpSize);
        canvas->drawText(title.c_str(), title.size(), 0,
                         titleHeight, blackPaint);

        canvas->translate(0, SK_Scalar1 * kPadY / 2  + titleHeight);
        int rowCount = 0;
        canvas->save();
        for (int w = 1; w <= kMaxSrcRectSize; w *= 4) {
            for (int h = 1; h <= kMaxSrcRectSize; h *= 4) {

                SkIRect srcRect = SkIRect::MakeXYWH((kBmpSize - w) / 2,
                                                    (kBmpSize - h) / 2,
                                                    w, h);
                canvas->drawBitmapRect(fLargeBitmap, &srcRect, dstRect);

                SkString label;
                label.appendf("%d x %d", w, h);
                blackPaint.setAntiAlias(true);
                blackPaint.setStyle(SkPaint::kFill_Style);
                blackPaint.setTextSize(SK_Scalar1 * 10);
                SkScalar baseline = dstRect.height() +
                                    blackPaint.getTextSize() + SK_Scalar1 * 3;
                canvas->drawText(label.c_str(), label.size(),
                                    0, baseline,
                                    blackPaint);
                blackPaint.setStyle(SkPaint::kStroke_Style);
                blackPaint.setStrokeWidth(SK_Scalar1);
                blackPaint.setAntiAlias(false);
                canvas->drawRect(dstRect, blackPaint);

                canvas->translate(dstRect.width() + SK_Scalar1 * kPadX, 0);
                ++rowCount;
                if ((dstRect.width() + kPadX) * rowCount > gSize) {
                    canvas->restore();
                    canvas->translate(0, dstRect.height() + SK_Scalar1 * kPadY);
                    canvas->save();
                    rowCount = 0;
                }
            }
        }

        {
            // test the following code path:
            // SkGpuDevice::drawPath() -> SkGpuDevice::drawWithMaskFilter()
            SkIRect srcRect;
            SkPaint paint;
            SkBitmap bm;

            bm = make_chessbm(5, 5);
            paint.setFilterLevel(SkPaint::kLow_FilterLevel);

            srcRect.setXYWH(1, 1, 3, 3);
            SkMaskFilter* mf = SkBlurMaskFilter::Create(
                kNormal_SkBlurStyle,
                SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(5)),
                SkBlurMaskFilter::kHighQuality_BlurFlag |
                SkBlurMaskFilter::kIgnoreTransform_BlurFlag);
            paint.setMaskFilter(mf)->unref();
            canvas->drawBitmapRect(bm, &srcRect, dstRect, &paint);
        }
    }

 SkString onShortName() override {
     SkString str = SkString("etc1bitmap_");
     str.append(this->fileExtension());
     return str;
 }

bool SkSVGPaint::writeChangedElements(SkSVGParser& parser,
        SkSVGPaint& current, bool* changed) {
    SkSVGPaint& lastState = parser.fLastFlush;
    for (int index = kInitial + 1; index < kTerminal; index++) {
        SkString* topAttr = current[index];
        size_t attrLength = topAttr->size();
        if (attrLength == 0)
            continue;
        const char* attrValue = topAttr->c_str();
        SkString* lastAttr = lastState[index];
        switch(index) {
            case kClipPath:
            case kClipRule:
                // !!! need to add this outside of paint
                break;
            case kEnableBackground:
                // !!! don't know what to do with this
                break;
            case kFill:
                goto addColor;
            case kFillRule:
            case kFilter:
                break;
            case kFontFamily:
                parser._startElement("typeface");
                parser._addAttributeLen("fontName", attrValue, attrLength);
                parser._endElement();   // typeface
                break;
            case kFontSize:
            case kLetterSpacing:
                break;
            case kMask:
            case kOpacity:
                if (changed[kStroke] == false && changed[kFill] == false) {
                    parser._startElement("color");
                    SkString& opacity = current.f_opacity;
                    parser._addAttributeLen("color", parser.fLastColor.c_str(), parser.fLastColor.size());
                    parser._addAttributeLen("alpha", opacity.c_str(), opacity.size());
                    parser._endElement();   // color
                }
                break;
            case kStopColor:
                break;
            case kStopOpacity:
                break;
            case kStroke:
addColor:
                if (strncmp(lastAttr->c_str(), "url(", 4) == 0 && strncmp(attrValue, "url(", 4) != 0) {
                    parser._startElement("shader");
                    parser._endElement();
                }
                if (topAttr->equals(*lastAttr))
                    continue;
                {
                    bool urlRef = strncmp(attrValue, "url(", 4) == 0;
                    bool colorNone = strcmp(attrValue, "none") == 0;
                    bool lastEqual = parser.fLastColor.equals(attrValue, attrLength);
                    bool newColor = urlRef == false && colorNone == false && lastEqual == false;
                    if (newColor || changed[kOpacity]) {
                        parser._startElement("color");
                        if (newColor || changed[kOpacity]) {
                            parser._addAttributeLen("color", attrValue, attrLength);
                            parser.fLastColor.set(attrValue, attrLength);
                        }
                        if (changed[kOpacity]) {
                            SkString& opacity = current.f_opacity;
                            parser._addAttributeLen("alpha", opacity.c_str(), opacity.size());
                        }
                        parser._endElement();   // color
                    }
                }
                break;
            case kStroke_Dasharray:
                parser._startElement("dash");
                SkSVGParser::ConvertToArray(*topAttr);
                parser._addAttribute("intervals", topAttr->c_str());
                parser._endElement();   // dash
            break;
            case kStroke_Linecap:
            case kStroke_Linejoin:
            case kStroke_Miterlimit:
            case kStroke_Width:
            case kStyle:
            case kTransform:
                break;
        default:
            SkASSERT(0);
            return false;
        }
    }
    return true;
}

static void output_font(SkTypeface* face, const char* name, SkTypeface::Style style,
        const char* used, FILE* out) {
    int emSize = face->getUnitsPerEm() * 2;
    SkPaint paint;
    paint.setAntiAlias(true);
    paint.setTextAlign(SkPaint::kLeft_Align);
    paint.setTextEncoding(SkPaint::kUTF16_TextEncoding);
    paint.setTextSize(emSize);
    SkSafeUnref(paint.setTypeface(face));
    SkTDArray<SkPath::Verb> verbs;
    SkTDArray<unsigned> charCodes;
    SkTDArray<SkScalar> widths;
    SkString ptsOut;
    output_path_data(paint, used, emSize, &ptsOut, &verbs, &charCodes, &widths);
    SkString fontnameStr(name);
    SkString strippedStr = strip_spaces(fontnameStr);
    strippedStr.appendf("%s", gStyleName[style]);
    const char* fontname = strippedStr.c_str();
    fprintf(out, "const SkScalar %sPoints[] = {\n", fontname);
    ptsOut = strip_final(ptsOut);
    fprintf(out, "%s", ptsOut.c_str());
    fprintf(out, "\n};\n\n");
    fprintf(out, "const unsigned char %sVerbs[] = {\n", fontname);
    int verbCount = verbs.count();
    int outChCount = 0;
    for (int index = 0; index < verbCount;) {
        SkPath::Verb verb = verbs[index];
        SkASSERT(verb >= SkPath::kMove_Verb && verb <= SkPath::kDone_Verb);
        SkASSERT((unsigned) verb == (unsigned char) verb);
        fprintf(out, "%u", verb);
        if (++index < verbCount) {
            outChCount += 3;
            fprintf(out, "%c", ',');
            if (outChCount >= kMaxLineLength) {
                outChCount = 0;
                fprintf(out, "%c", '\n');
            } else {
                fprintf(out, "%c", ' ');
            }
        }
    }
    fprintf(out, "\n};\n\n");
    
    fprintf(out, "const unsigned %sCharCodes[] = {\n", fontname);
    int offsetCount = charCodes.count();
    for (int index = 0; index < offsetCount;) {
        unsigned offset = charCodes[index];
        fprintf(out, "%u", offset);
        if (++index < offsetCount) {
            outChCount += offset_str_len(offset) + 2;
            fprintf(out, "%c", ',');
            if (outChCount >= kMaxLineLength) {
                outChCount = 0;
                fprintf(out, "%c", '\n');
            } else {
                fprintf(out, "%c", ' ');
            }
        }
    }
    fprintf(out, "\n};\n\n");
    
    SkString widthsStr;
    fprintf(out, "const SkFixed %sWidths[] = {\n", fontname);
    for (int index = 0; index < offsetCount; ++index) {
        output_fixed(widths[index], emSize, &widthsStr);
    }
    widthsStr = strip_final(widthsStr);
    fprintf(out, "%s\n};\n\n", widthsStr.c_str());
    
    fprintf(out, "const int %sCharCodesCount = (int) SK_ARRAY_COUNT(%sCharCodes);\n\n",
            fontname, fontname);

    SkPaint::FontMetrics metrics;
    paint.getFontMetrics(&metrics);
    fprintf(out, "const SkPaint::FontMetrics %sMetrics = {\n", fontname);
    SkString metricsStr;
    metricsStr.printf("0x%08x, ", metrics.fFlags);
    output_scalar(metrics.fTop, emSize, &metricsStr);
    output_scalar(metrics.fAscent, emSize, &metricsStr);
    output_scalar(metrics.fDescent, emSize, &metricsStr);
    output_scalar(metrics.fBottom, emSize, &metricsStr);
    output_scalar(metrics.fLeading, emSize, &metricsStr);
    output_scalar(metrics.fAvgCharWidth, emSize, &metricsStr);
    output_scalar(metrics.fMaxCharWidth, emSize, &metricsStr);
    output_scalar(metrics.fXMin, emSize, &metricsStr);
    output_scalar(metrics.fXMax, emSize, &metricsStr);
    output_scalar(metrics.fXHeight, emSize, &metricsStr);
    output_scalar(metrics.fCapHeight, emSize, &metricsStr);
    output_scalar(metrics.fUnderlineThickness, emSize, &metricsStr);
    output_scalar(metrics.fUnderlinePosition, emSize, &metricsStr);
    metricsStr = strip_final(metricsStr);
    fprintf(out, "%s\n};\n\n", metricsStr.c_str());
}

int tool_main(int argc, char** argv) {
    SkString usage;
    usage.printf("Time drawing .skp files.\n"
                 "\tPossible arguments for --filter: [%s]\n\t\t[%s]",
                 filterTypesUsage().c_str(), filterFlagsUsage().c_str());
    SkCommandLineFlags::SetUsage(usage.c_str());
    SkCommandLineFlags::Parse(argc, argv);

    if (FLAGS_repeat < 1) {
        SkString error;
        error.printf("--repeats must be >= 1. Was %i\n", FLAGS_repeat);
        gLogger.logError(error);
        exit(-1);
    }

    if (FLAGS_logFile.count() == 1) {
        if (!gLogger.SetLogFile(FLAGS_logFile[0])) {
            SkString str;
            str.printf("Could not open %s for writing.\n", FLAGS_logFile[0]);
            gLogger.logError(str);
            // TODO(borenet): We're disabling this for now, due to
            // write-protected Android devices.  The very short-term
            // solution is to ignore the fact that we have no log file.
            //exit(-1);
        }
    }

#ifdef SK_BUILD_JSON_WRITER
    SkAutoTDelete<PictureJSONResultsWriter> jsonWriter;
    if (FLAGS_jsonLog.count() == 1) {
        jsonWriter.reset(SkNEW(PictureJSONResultsWriter(FLAGS_jsonLog[0])));
        gWriter.add(jsonWriter.get());
    }

#endif
    gWriter.add(&gLogWriter);


#if SK_ENABLE_INST_COUNT
    gPrintInstCount = true;
#endif
    SkAutoGraphics ag;

    sk_tools::PictureBenchmark benchmark;

    setup_benchmark(&benchmark);

    int failures = 0;
    for (int i = 0; i < FLAGS_readPath.count(); ++i) {
        failures += process_input(FLAGS_readPath[i], benchmark);
    }

    if (failures != 0) {
        SkString err;
        err.printf("Failed to run %i benchmarks.\n", failures);
        gLogger.logError(err);
        return 1;
    }
#if SK_LAZY_CACHE_STATS
    if (FLAGS_trackDeferredCaching) {
        SkDebugf("Total cache hit rate: %f\n",
                 (double) gTotalCacheHits / (gTotalCacheHits + gTotalCacheMisses));
    }
#endif
    gWriter.end();
    return 0;
}

static int filter_picture(const SkString& inFile, const SkString& outFile) {
    SkAutoTUnref<SkPicture> inPicture;

    SkFILEStream inStream(inFile.c_str());
    if (inStream.isValid()) {
        inPicture.reset(SkPicture::CreateFromStream(&inStream));
    }

    if (nullptr == inPicture.get()) {
        SkDebugf("Could not read file %s\n", inFile.c_str());
        return -1;
    }

    int localCount[SK_ARRAY_COUNT(gOptTable)];

    memset(localCount, 0, sizeof(localCount));

    SkDebugCanvas debugCanvas(SkScalarCeilToInt(inPicture->cullRect().width()),
                              SkScalarCeilToInt(inPicture->cullRect().height()));
    inPicture->playback(&debugCanvas);

    // delete the initial save and restore since replaying the commands will
    // re-add them
    if (debugCanvas.getSize() > 1) {
        debugCanvas.deleteDrawCommandAt(0);
        debugCanvas.deleteDrawCommandAt(debugCanvas.getSize()-1);
    }

    bool changed = true;
    int numBefore = debugCanvas.getSize();

    while (changed) {
        changed = false;
        for (int i = 0; i < debugCanvas.getSize(); ++i) {
            for (size_t opt = 0; opt < SK_ARRAY_COUNT(gOptTable); ++opt) {
                if ((*gOptTable[opt].fCheck)(&debugCanvas, i)) {
                    (*gOptTable[opt].fApply)(&debugCanvas, i);

                    ++gOptTable[opt].fNumTimesApplied;
                    ++localCount[opt];

                    if (debugCanvas.getSize() == i) {
                        // the optimization removed all the remaining operations
                        break;
                    }

                    opt = 0;          // try all the opts all over again
                    changed = true;
                }
            }
        }
    }

    int numAfter = debugCanvas.getSize();

    if (!outFile.isEmpty()) {
        SkPictureRecorder recorder;
        SkCanvas* canvas = recorder.beginRecording(inPicture->cullRect().width(),
                                                   inPicture->cullRect().height(),
                                                   nullptr, 0);
        debugCanvas.draw(canvas);
        SkAutoTUnref<SkPicture> outPicture(recorder.endRecording());

        SkFILEWStream outStream(outFile.c_str());

        outPicture->serialize(&outStream);
    }

    bool someOptFired = false;
    for (size_t opt = 0; opt < SK_ARRAY_COUNT(gOptTable); ++opt) {
        if (0 != localCount[opt]) {
            SkDebugf("%d: %d ", opt, localCount[opt]);
            someOptFired = true;
        }
    }

    if (!someOptFired) {
        SkDebugf("No opts fired\n");
    } else {
        SkDebugf("\t before: %d after: %d delta: %d\n",
                 numBefore, numAfter, numBefore-numAfter);
    }

    return 0;
}

static void setup_benchmark(sk_tools::PictureBenchmark* benchmark) {
    sk_tools::PictureRenderer::DrawFilterFlags drawFilters[SkDrawFilter::kTypeCount];
    sk_bzero(drawFilters, sizeof(drawFilters));

    if (FLAGS_filter.count() > 0) {
        const char* filters = FLAGS_filter[0];
        const char* colon = strchr(filters, ':');
        if (colon) {
            int32_t type = -1;
            size_t typeLen = colon - filters;
            for (size_t tIndex = 0; tIndex < kFilterTypesCount; ++tIndex) {
                if (typeLen == strlen(gFilterTypes[tIndex])
                        && !strncmp(filters, gFilterTypes[tIndex], typeLen)) {
                    type = SkToS32(tIndex);
                    break;
                }
            }
            if (type < 0) {
                SkString err;
                err.printf("Unknown type for --filter %s\n", filters);
                gLogger.logError(err);
                exit(-1);
            }
            int flag = -1;
            size_t flagLen = strlen(filters) - typeLen - 1;
            for (size_t fIndex = 0; fIndex < kFilterFlagsCount; ++fIndex) {
                if (flagLen == strlen(gFilterFlags[fIndex])
                        && !strncmp(colon + 1, gFilterFlags[fIndex], flagLen)) {
                    flag = 1 << fIndex;
                    break;
                }
            }
            if (flag < 0) {
                SkString err;
                err.printf("Unknown flag for --filter %s\n", filters);
                gLogger.logError(err);
                exit(-1);
            }
            for (int index = 0; index < SkDrawFilter::kTypeCount; ++index) {
                if (type != SkDrawFilter::kTypeCount && index != type) {
                    continue;
                }
                drawFilters[index] = (sk_tools::PictureRenderer::DrawFilterFlags)
                        (drawFilters[index] | flag);
            }
        } else {
            SkString err;
            err.printf("Unknown arg for --filter %s : missing colon\n", filters);
            gLogger.logError(err);
            exit(-1);
        }
    }

    if (FLAGS_timers.count() > 0) {
        size_t index = 0;
        bool timerWall = false;
        bool truncatedTimerWall = false;
        bool timerCpu = false;
        bool truncatedTimerCpu = false;
        bool timerGpu = false;
        while (index < strlen(FLAGS_timers[0])) {
            switch (FLAGS_timers[0][index]) {
                case 'w':
                    timerWall = true;
                    break;
                case 'c':
                    timerCpu = true;
                    break;
                case 'W':
                    truncatedTimerWall = true;
                    break;
                case 'C':
                    truncatedTimerCpu = true;
                    break;
                case 'g':
                    timerGpu = true;
                    break;
                default:
                    SkDebugf("mystery character\n");
                    break;
            }
            index++;
        }
        benchmark->setTimersToShow(timerWall, truncatedTimerWall, timerCpu, truncatedTimerCpu,
                                  timerGpu);
    }

    SkString errorString;
    SkAutoTUnref<sk_tools::PictureRenderer> renderer(parseRenderer(errorString,
                                                                   kBench_PictureTool));

    if (errorString.size() > 0) {
        gLogger.logError(errorString);
    }

    if (NULL == renderer.get()) {
        exit(-1);
    }

    if (FLAGS_timeIndividualTiles) {
//.........这里部分代码省略.........

static bool run_single_benchmark(const SkString& inputPath,
                                 sk_tools::PictureBenchmark& benchmark) {
    SkFILEStream inputStream;

    inputStream.setPath(inputPath.c_str());
    if (!inputStream.isValid()) {
        SkString err;
        err.printf("Could not open file %s\n", inputPath.c_str());
        gLogger.logError(err);
        return false;
    }

    SkDiscardableMemoryPool* pool = SkGetGlobalDiscardableMemoryPool();
    // Since the old picture has been deleted, all pixels should be cleared.
    SkASSERT(pool->getRAMUsed() == 0);
    if (FLAGS_countRAM) {
        pool->setRAMBudget(SK_MaxU32);
        // Set the limit to max, so all pixels will be kept
    }

    SkPicture::InstallPixelRefProc proc;
    if (FLAGS_deferImageDecoding) {
        proc = &sk_tools::LazyDecodeBitmap;
    } else {
        proc = &SkImageDecoder::DecodeMemory;
    }
    SkAutoTUnref<SkPicture> picture(SkPicture::CreateFromStream(&inputStream, proc));

    if (NULL == picture.get()) {
        SkString err;
        err.printf("Could not read an SkPicture from %s\n", inputPath.c_str());
        gLogger.logError(err);
        return false;
    }

    SkString filename = SkOSPath::SkBasename(inputPath.c_str());

    gWriter.bench(filename.c_str(), picture->width(), picture->height());

    benchmark.run(picture);

#if SK_LAZY_CACHE_STATS
    if (FLAGS_trackDeferredCaching) {
        int cacheHits = pool->getCacheHits();
        int cacheMisses = pool->getCacheMisses();
        pool->resetCacheHitsAndMisses();
        SkString hitString;
        hitString.printf("Cache hit rate: %f\n", (double) cacheHits / (cacheHits + cacheMisses));
        gLogger.logProgress(hitString);
        gTotalCacheHits += cacheHits;
        gTotalCacheMisses += cacheMisses;
    }
#endif
    if (FLAGS_countRAM) {
        SkString ramCount("RAM used for bitmaps: ");
        size_t bytes = pool->getRAMUsed();
        if (bytes > 1024) {
            size_t kb = bytes / 1024;
            if (kb > 1024) {
                size_t mb = kb / 1024;
                ramCount.appendf("%zi MB\n", mb);
            } else {
                ramCount.appendf("%zi KB\n", kb);
            }
        } else {
            ramCount.appendf("%zi bytes\n", bytes);
        }
        gLogger.logProgress(ramCount);
    }

    return true;
}

static SkStreamAsset* resource(const char path[]) {
    SkString fullPath = GetResourcePath(path);
    return SkStream::NewFromFile(fullPath.c_str());
}

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
}

void GrInOrderDrawBuffer::flush() {
    if (fFlushing) {
        return;
    }

    SkASSERT(kReserved_GeometrySrcType != this->getGeomSrc().fVertexSrc);
    SkASSERT(kReserved_GeometrySrcType != this->getGeomSrc().fIndexSrc);

    int numCmds = fCmds.count();
    if (0 == numCmds) {
        return;
    }

    GrAutoTRestore<bool> flushRestore(&fFlushing);
    fFlushing = true;

    fVertexPool.unlock();
    fIndexPool.unlock();

    GrDrawTarget::AutoClipRestore acr(fDstGpu);
    AutoGeometryAndStatePush agasp(fDstGpu, kPreserve_ASRInit);

    GrDrawState playbackState;
    GrDrawState* prevDrawState = fDstGpu->drawState();
    prevDrawState->ref();
    fDstGpu->setDrawState(&playbackState);

    GrClipData clipData;

    int currState       = 0;
    int currClip        = 0;
    int currClear       = 0;
    int currDraw        = 0;
    int currStencilPath = 0;
    int currDrawPath    = 0;
    int currDrawPaths   = 0;
    int currCopySurface = 0;
    int currCmdMarker   = 0;

    for (int c = 0; c < numCmds; ++c) {
        GrGpuTraceMarker newMarker("", -1);
        if (cmd_has_trace_marker(fCmds[c])) {
            SkString traceString = fGpuCmdMarkers[currCmdMarker].toString();
            newMarker.fMarker = traceString.c_str();
            fDstGpu->addGpuTraceMarker(&newMarker);
            ++currCmdMarker;
        }
        switch (strip_trace_bit(fCmds[c])) {
            case kDraw_Cmd: {
                const DrawRecord& draw = fDraws[currDraw];
                fDstGpu->setVertexSourceToBuffer(draw.fVertexBuffer);
                if (draw.isIndexed()) {
                    fDstGpu->setIndexSourceToBuffer(draw.fIndexBuffer);
                }
                fDstGpu->executeDraw(draw);
                ++currDraw;
                break;
            }
            case kStencilPath_Cmd: {
                const StencilPath& sp = fStencilPaths[currStencilPath];
                fDstGpu->stencilPath(sp.fPath.get(), sp.fFill);
                ++currStencilPath;
                break;
            }
            case kDrawPath_Cmd: {
                const DrawPath& cp = fDrawPath[currDrawPath];
                fDstGpu->executeDrawPath(cp.fPath.get(), cp.fFill,
                                         NULL != cp.fDstCopy.texture() ? &cp.fDstCopy : NULL);
                ++currDrawPath;
                break;
            }
            case kDrawPaths_Cmd: {
                DrawPaths& dp = fDrawPaths[currDrawPaths];
                const GrDeviceCoordTexture* dstCopy =
                    NULL != dp.fDstCopy.texture() ? &dp.fDstCopy : NULL;
                fDstGpu->executeDrawPaths(dp.fPathCount, dp.fPaths,
                                          dp.fTransforms, dp.fFill, dp.fStroke,
                                          dstCopy);
                ++currDrawPaths;
                break;
            }
            case kSetState_Cmd:
                fStates[currState].restoreTo(&playbackState);
                ++currState;
                break;
            case kSetClip_Cmd:
                clipData.fClipStack = &fClips[currClip];
                clipData.fOrigin = fClipOrigins[currClip];
                fDstGpu->setClip(&clipData);
                ++currClip;
                break;
            case kClear_Cmd:
                if (GrColor_ILLEGAL == fClears[currClear].fColor) {
                    fDstGpu->discard(fClears[currClear].fRenderTarget);
                } else {
                    fDstGpu->clear(&fClears[currClear].fRect,
                                   fClears[currClear].fColor,
                                   fClears[currClear].fCanIgnoreRect,
                                   fClears[currClear].fRenderTarget);
                }
//.........这里部分代码省略.........

SkString GrGLCaps::dump() const {

    SkString r = INHERITED::dump();

    r.appendf("--- GL-Specific ---\n");
    for (int i = 0; i < fStencilFormats.count(); ++i) {
        r.appendf("Stencil Format %d, stencil bits: %02d, total bits: %02d\n",
                 i,
                 fStencilFormats[i].fStencilBits,
                 fStencilFormats[i].fTotalBits);
    }

    static const char* kMSFBOExtStr[] = {
        "None",
        "ARB",
        "EXT",
        "ES 3.0",
        "Apple",
        "IMG MS To Texture",
        "EXT MS To Texture",
    };
    GR_STATIC_ASSERT(0 == kNone_MSFBOType);
    GR_STATIC_ASSERT(1 == kDesktop_ARB_MSFBOType);
    GR_STATIC_ASSERT(2 == kDesktop_EXT_MSFBOType);
    GR_STATIC_ASSERT(3 == kES_3_0_MSFBOType);
    GR_STATIC_ASSERT(4 == kES_Apple_MSFBOType);
    GR_STATIC_ASSERT(5 == kES_IMG_MsToTexture_MSFBOType);
    GR_STATIC_ASSERT(6 == kES_EXT_MsToTexture_MSFBOType);
    GR_STATIC_ASSERT(SK_ARRAY_COUNT(kMSFBOExtStr) == kLast_MSFBOType + 1);

    static const char* kFBFetchTypeStr[] = {
        "None",
        "EXT",
        "NV",
    };
    GR_STATIC_ASSERT(0 == kNone_FBFetchType);
    GR_STATIC_ASSERT(1 == kEXT_FBFetchType);
    GR_STATIC_ASSERT(2 == kNV_FBFetchType);
    GR_STATIC_ASSERT(SK_ARRAY_COUNT(kFBFetchTypeStr) == kLast_FBFetchType + 1);

    static const char* kInvalidateFBTypeStr[] = {
        "None",
        "Discard",
        "Invalidate",
    };
    GR_STATIC_ASSERT(0 == kNone_InvalidateFBType);
    GR_STATIC_ASSERT(1 == kDiscard_InvalidateFBType);
    GR_STATIC_ASSERT(2 == kInvalidate_InvalidateFBType);
    GR_STATIC_ASSERT(SK_ARRAY_COUNT(kInvalidateFBTypeStr) == kLast_InvalidateFBType + 1);

    static const char* kMapBufferTypeStr[] = {
        "None",
        "MapBuffer",
        "MapBufferRange",
        "Chromium",
    };
    GR_STATIC_ASSERT(0 == kNone_MapBufferType);
    GR_STATIC_ASSERT(1 == kMapBuffer_MapBufferType);
    GR_STATIC_ASSERT(2 == kMapBufferRange_MapBufferType);
    GR_STATIC_ASSERT(3 == kChromium_MapBufferType);
    GR_STATIC_ASSERT(SK_ARRAY_COUNT(kMapBufferTypeStr) == kLast_MapBufferType + 1);

    r.appendf("Core Profile: %s\n", (fIsCoreProfile ? "YES" : "NO"));
    r.appendf("MSAA Type: %s\n", kMSFBOExtStr[fMSFBOType]);
    r.appendf("FB Fetch Type: %s\n", kFBFetchTypeStr[fFBFetchType]);
    r.appendf("Invalidate FB Type: %s\n", kInvalidateFBTypeStr[fInvalidateFBType]);
    r.appendf("Map Buffer Type: %s\n", kMapBufferTypeStr[fMapBufferType]);
    r.appendf("Max FS Uniform Vectors: %d\n", fMaxFragmentUniformVectors);
    r.appendf("Max FS Texture Units: %d\n", fMaxFragmentTextureUnits);
    if (!fIsCoreProfile) {
        r.appendf("Max Fixed Function Texture Coords: %d\n", fMaxFixedFunctionTextureCoords);
    }
    r.appendf("Max Vertex Attributes: %d\n", fMaxVertexAttributes);
    r.appendf("Support RGBA8 Render Buffer: %s\n", (fRGBA8RenderbufferSupport ? "YES": "NO"));
    r.appendf("BGRA is an internal format: %s\n", (fBGRAIsInternalFormat ? "YES": "NO"));
    r.appendf("Support texture swizzle: %s\n", (fTextureSwizzleSupport ? "YES": "NO"));
    r.appendf("Unpack Row length support: %s\n", (fUnpackRowLengthSupport ? "YES": "NO"));
    r.appendf("Unpack Flip Y support: %s\n", (fUnpackFlipYSupport ? "YES": "NO"));
    r.appendf("Pack Row length support: %s\n", (fPackRowLengthSupport ? "YES": "NO"));
    r.appendf("Pack Flip Y support: %s\n", (fPackFlipYSupport ? "YES": "NO"));

    r.appendf("Texture Usage support: %s\n", (fTextureUsageSupport ? "YES": "NO"));
    r.appendf("Texture Storage support: %s\n", (fTexStorageSupport ? "YES": "NO"));
    r.appendf("GL_R support: %s\n", (fTextureRedSupport ? "YES": "NO"));
    r.appendf("GL_ARB_imaging support: %s\n", (fImagingSupport ? "YES": "NO"));
    r.appendf("Two Format Limit: %s\n", (fTwoFormatLimit ? "YES": "NO"));
    r.appendf("Fragment coord conventions support: %s\n",
             (fFragCoordsConventionSupport ? "YES": "NO"));
    r.appendf("Vertex array object support: %s\n", (fVertexArrayObjectSupport ? "YES": "NO"));
    r.appendf("Use non-VBO for dynamic data: %s\n",
             (fUseNonVBOVertexAndIndexDynamicData ? "YES" : "NO"));
    r.appendf("Full screen clear is free: %s\n", (fFullClearIsFree ? "YES" : "NO"));
    r.appendf("Drops tile on zero divide: %s\n", (fDropsTileOnZeroDivide ? "YES" : "NO"));
    return r;
}

bool SkScriptRuntime::executeTokens(unsigned char* opCode) {
    SkOperand2 operand[2];    // 1=accumulator and 2=operand
    SkScriptEngine2::TypeOp op;
    size_t ref;
    int index, size;
    int registerLoad;
    SkScriptCallBack* callBack SK_INIT_TO_AVOID_WARNING;
    do {
    switch ((op = (SkScriptEngine2::TypeOp) *opCode++)) {
        case SkScriptEngine2::kArrayToken:    // create an array
            operand[0].fArray = new SkOpArray(SkOperand2::kNoType /*fReturnType*/);
            break;
        case SkScriptEngine2::kArrayIndex:    // array accessor
            index = operand[1].fS32;
            if (index >= operand[0].fArray->count()) {
                fError = kArrayIndexOutOfBounds;
                return false;
            }
            operand[0] = operand[0].fArray->begin()[index];
            break;
        case SkScriptEngine2::kArrayParam:    // array initializer, or function param
            *operand[0].fArray->append() = operand[1];
            break;
        case SkScriptEngine2::kCallback:
            memcpy(&index, opCode, sizeof(index));
            opCode += sizeof(index);
            callBack = fCallBackArray[index];
            break;
        case SkScriptEngine2::kFunctionCall: {
            memcpy(&ref, opCode, sizeof(ref));
            opCode += sizeof(ref);
            SkScriptCallBackFunction* callBackFunction = (SkScriptCallBackFunction*) callBack;
            if (callBackFunction->invoke(ref, operand[0].fArray, /* params */
                    &operand[0] /* result */) == false) {
                fError = kFunctionCallFailed;
                return false;
            }
            } break;
        case SkScriptEngine2::kMemberOp: {
            memcpy(&ref, opCode, sizeof(ref));
            opCode += sizeof(ref);
            SkScriptCallBackMember* callBackMember = (SkScriptCallBackMember*) callBack;
            if (callBackMember->invoke(ref, operand[0].fObject, &operand[0]) == false) {
                fError = kMemberOpFailed;
                return false;
            }
            } break;
        case SkScriptEngine2::kPropertyOp: {
            memcpy(&ref, opCode, sizeof(ref));
            opCode += sizeof(ref);
            SkScriptCallBackProperty* callBackProperty = (SkScriptCallBackProperty*) callBack;
            if (callBackProperty->getResult(ref, &operand[0])== false) {
                fError = kPropertyOpFailed;
                return false;
            }
            } break;
        case SkScriptEngine2::kAccumulatorPop:
            fRunStack.pop(&operand[0]);
            break;
        case SkScriptEngine2::kAccumulatorPush:
            *fRunStack.push() = operand[0];
            break;
        case SkScriptEngine2::kIntegerAccumulator:
        case SkScriptEngine2::kIntegerOperand:
            registerLoad = op - SkScriptEngine2::kIntegerAccumulator;
            memcpy(&operand[registerLoad].fS32, opCode, sizeof(int32_t));
            opCode += sizeof(int32_t);
            break;
        case SkScriptEngine2::kScalarAccumulator:
        case SkScriptEngine2::kScalarOperand:
            registerLoad = op - SkScriptEngine2::kScalarAccumulator;
            memcpy(&operand[registerLoad].fScalar, opCode, sizeof(SkScalar));
            opCode += sizeof(SkScalar);
            break;
        case SkScriptEngine2::kStringAccumulator:
        case SkScriptEngine2::kStringOperand: {
            SkString* strPtr = new SkString();
            track(strPtr);
            registerLoad = op - SkScriptEngine2::kStringAccumulator;
            memcpy(&size, opCode, sizeof(size));
            opCode += sizeof(size);
            strPtr->set((char*) opCode, size);
            opCode += size;
            operand[registerLoad].fString = strPtr;
            } break;
        case SkScriptEngine2::kStringTrack: // call after kObjectToValue
            track(operand[0].fString);
            break;
        case SkScriptEngine2::kBoxToken: {
            SkOperand2::OpType type;
            memcpy(&type, opCode, sizeof(type));
            opCode += sizeof(type);
            SkScriptCallBackConvert* callBackBox = (SkScriptCallBackConvert*) callBack;
            if (callBackBox->convert(type, &operand[0]) == false)
                return false;
            } break;
        case SkScriptEngine2::kUnboxToken:
        case SkScriptEngine2::kUnboxToken2: {
            SkScriptCallBackConvert* callBackUnbox = (SkScriptCallBackConvert*) callBack;
            if (callBackUnbox->convert(SkOperand2::kObject, &operand[0]) == false)
//.........这里部分代码省略.........