C++ SkAutoTDelete::get方法代码示例

/*
 * Tries to handle the image with PIEX. If PIEX returns kOk and finds the preview image, create a
 * SkJpegCodec. If PIEX returns kFail, then the file is invalid, return nullptr. In other cases,
 * fallback to create SkRawCodec for DNG images.
 */
SkCodec* SkRawCodec::NewFromStream(SkStream* stream) {
    SkAutoTDelete<SkRawStream> rawStream;
    if (is_asset_stream(*stream)) {
        rawStream.reset(new SkRawAssetStream(stream));
    } else {
        rawStream.reset(new SkRawBufferedStream(stream));
    }

    // Does not take the ownership of rawStream.
    SkPiexStream piexStream(rawStream.get());
    ::piex::PreviewImageData imageData;
    if (::piex::IsRaw(&piexStream)) {
        ::piex::Error error = ::piex::GetPreviewImageData(&piexStream, &imageData);

        if (error == ::piex::Error::kOk && imageData.preview.length > 0) {
            // transferBuffer() is destructive to the rawStream. Abandon the rawStream after this
            // function call.
            // FIXME: one may avoid the copy of memoryStream and use the buffered rawStream.
            SkMemoryStream* memoryStream =
                rawStream->transferBuffer(imageData.preview.offset, imageData.preview.length);
            return memoryStream ? SkJpegCodec::NewFromStream(memoryStream) : nullptr;
        } else if (error == ::piex::Error::kFail) {
            return nullptr;
        }
    }

    // Takes the ownership of the rawStream.
    SkAutoTDelete<SkDngImage> dngImage(SkDngImage::NewFromStream(rawStream.release()));
    if (!dngImage) {
        return nullptr;
    }

    return new SkRawCodec(dngImage.release());
}

void BitmapRegionDecoderBench::onDraw(const int n, SkCanvas* canvas) {
    SkAutoTDelete<SkBitmap> bitmap;
    for (int i = 0; i < n; i++) {
        bitmap.reset(fBRD->decodeRegion(fSubset.left(), fSubset.top(), fSubset.width(),
                fSubset.height(), fSampleSize, fColorType));
        SkASSERT(nullptr != bitmap.get());
    }
}

// static
SkPDFImage* SkPDFImage::CreateImage(const SkBitmap& bitmap,
                                    const SkIRect& srcRect) {
    if (bitmap.colorType() == kUnknown_SkColorType) {
        return NULL;
    }

    bool isTransparent = false;
    SkAutoTDelete<SkStream> alphaData;
    if (!bitmap.isOpaque()) {
        // Note that isOpaque is not guaranteed to return false for bitmaps
        // with alpha support but a completely opaque alpha channel,
        // so alphaData may still be NULL if we have a completely opaque
        // (or transparent) bitmap.
        alphaData.reset(
                extract_image_data(bitmap, srcRect, true, &isTransparent));
    }
    if (isTransparent) {
        return NULL;
    }

    SkPDFImage* image;
    SkColorType colorType = bitmap.colorType();
    if (alphaData.get() != NULL && (kN32_SkColorType == colorType ||
                                    kARGB_4444_SkColorType == colorType)) {
        if (kN32_SkColorType == colorType) {
            image = SkNEW_ARGS(SkPDFImage, (NULL, bitmap, false,
                                            SkIRect::MakeWH(srcRect.width(),
                                                            srcRect.height())));
        } else {
            SkBitmap unpremulBitmap = unpremultiply_bitmap(bitmap, srcRect);
            image = SkNEW_ARGS(SkPDFImage, (NULL, unpremulBitmap, false,
                                            SkIRect::MakeWH(srcRect.width(),
                                                            srcRect.height())));
        }
    } else {
        image = SkNEW_ARGS(SkPDFImage, (NULL, bitmap, false, srcRect));
    }
    if (alphaData.get() != NULL) {
        SkAutoTUnref<SkPDFImage> mask(
                SkNEW_ARGS(SkPDFImage, (alphaData.get(), bitmap, true, srcRect)));
        image->insert("SMask", new SkPDFObjRef(mask))->unref();
    }
    return image;
}

/**
 * Creates a ExtGState with the SMask set to the luminosityShader in
 * luminosity mode. The shader pattern extends to the bbox.
 */
SkPDFGraphicState* SkPDFAlphaFunctionShader::CreateSMaskGraphicState() {
    SkRect bbox;
    bbox.set(fState.get()->fBBox);

    SkAutoTUnref<SkPDFObject> luminosityShader(
            SkPDFShader::GetPDFShaderByState(
                 fState->CreateAlphaToLuminosityState()));

    SkAutoTUnref<SkStream> alphaStream(create_pattern_fill_content(-1, bbox));

    SkAutoTUnref<SkPDFResourceDict>
        resources(get_gradient_resource_dict(luminosityShader, NULL));

    SkAutoTUnref<SkPDFFormXObject> alphaMask(
            new SkPDFFormXObject(alphaStream.get(), bbox, resources.get()));

    return SkPDFGraphicState::GetSMaskGraphicState(
            alphaMask.get(), false,
            SkPDFGraphicState::kLuminosity_SMaskMode);
}

int tool_main(int argc, char** argv) {
    SetupCrashHandler();
    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);
        }
    }

    SkAutoTDelete<PictureJSONResultsWriter> jsonWriter;
    if (FLAGS_jsonLog.count() == 1) {
        SkASSERT(FLAGS_builderName.count() == 1 && FLAGS_gitHash.count() == 1);
        jsonWriter.reset(SkNEW(PictureJSONResultsWriter(
                        FLAGS_jsonLog[0],
                        FLAGS_builderName[0],
                        FLAGS_buildNumber,
                        FLAGS_timestamp,
                        FLAGS_gitHash[0],
                        FLAGS_gitNumber)));
        gWriter.add(jsonWriter.get());
    }

    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;
}

ContextInfo GrContextFactory::getContextInfo(ContextType type, ContextOptions options) {
    for (int i = 0; i < fContexts.count(); ++i) {
        Context& context = fContexts[i];
        if (context.fType == type &&
            context.fOptions == options &&
            !context.fAbandoned) {
            if (context.fGLContext) {
                context.fGLContext->makeCurrent();
            }
            return ContextInfo(context.fGrContext, context.fGLContext);
        }
    }
    SkAutoTDelete<GLTestContext> glCtx;
    sk_sp<GrContext> grCtx;
    GrBackendContext backendContext = 0;
    sk_sp<const GrGLInterface> glInterface;
#ifdef SK_VULKAN
    sk_sp<const GrVkBackendContext> vkBackend;
#endif
    GrBackend backend = ContextTypeBackend(type);
    switch (backend) {
        case kOpenGL_GrBackend:
            switch (type) {
                case kGL_ContextType:
                    glCtx.reset(CreatePlatformGLTestContext(kGL_GrGLStandard));
                    break;
                case kGLES_ContextType:
                    glCtx.reset(CreatePlatformGLTestContext(kGLES_GrGLStandard));
                    break;
#if SK_ANGLE
#   ifdef SK_BUILD_FOR_WIN
                case kANGLE_ContextType:
                    glCtx.reset(CreateANGLEDirect3DGLTestContext());
                    break;
#   endif
                case kANGLE_GL_ContextType:
                    glCtx.reset(CreateANGLEOpenGLGLTestContext());
                    break;
#endif
#if SK_COMMAND_BUFFER
                case kCommandBuffer_ContextType:
                    glCtx.reset(CommandBufferGLTestContext::Create());
                    break;
#endif
#if SK_MESA
                case kMESA_ContextType:
                    glCtx.reset(CreateMesaGLTestContext());
                    break;
#endif
                case kNullGL_ContextType:
                    glCtx.reset(CreateNullGLTestContext());
                    break;
                case kDebugGL_ContextType:
                    glCtx.reset(CreateDebugGLTestContext());
                    break;
                default:
                    return ContextInfo();
            }
            if (nullptr == glCtx.get()) {
                return ContextInfo();
            }
            glInterface.reset(SkRef(glCtx->gl()));
            // Block NVPR from non-NVPR types.
            if (!(kEnableNVPR_ContextOptions & options)) {
                glInterface.reset(GrGLInterfaceRemoveNVPR(glInterface.get()));
                if (!glInterface) {
                    return ContextInfo();
                }
            }
            backendContext = reinterpret_cast<GrBackendContext>(glInterface.get());
            glCtx->makeCurrent();
            break;
#ifdef SK_VULKAN
        case kVulkan_GrBackend:
            SkASSERT(kVulkan_ContextType == type);
            if ((kEnableNVPR_ContextOptions & options) ||
                (kRequireSRGBSupport_ContextOptions & options)) {
                return ContextInfo();
            }
            vkBackend.reset(GrVkBackendContext::Create());
            if (!vkBackend) {
                return ContextInfo();
            }
            backendContext = reinterpret_cast<GrBackendContext>(vkBackend.get());
            // There is some bug (either in Skia or the NV Vulkan driver) where VkDevice
            // destruction will hang occaisonally. For some reason having an existing GL
            // context fixes this.
            if (!fSentinelGLContext) {
                fSentinelGLContext.reset(CreatePlatformGLTestContext(kGL_GrGLStandard));
                if (!fSentinelGLContext) {
                    fSentinelGLContext.reset(CreatePlatformGLTestContext(kGLES_GrGLStandard));
                }
            }
            break;
#endif
        default:
            return ContextInfo();
    }

    grCtx.reset(GrContext::Create(backend, backendContext, fGlobalOptions));
//.........这里部分代码省略.........

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

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

    if (NULL == 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(inPicture->width(), inPicture->height());
    debugCanvas.setBounds(inPicture->width(), inPicture->height());
    inPicture->draw(&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()) {
        SkPicture outPicture;

        SkCanvas* canvas = outPicture.beginRecording(inPicture->width(), inPicture->height());
        debugCanvas.draw(canvas);
        outPicture.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;
}

bool GrGpuGL::programUnitTest(int maxStages) {

    GrTextureDesc dummyDesc;
    dummyDesc.fFlags = kRenderTarget_GrTextureFlagBit;
    dummyDesc.fConfig = kSkia8888_GrPixelConfig;
    dummyDesc.fWidth = 34;
    dummyDesc.fHeight = 18;
    SkAutoTUnref<GrTexture> dummyTexture1(this->createTexture(dummyDesc, NULL, 0));
    dummyDesc.fFlags = kNone_GrTextureFlags;
    dummyDesc.fConfig = kAlpha_8_GrPixelConfig;
    dummyDesc.fWidth = 16;
    dummyDesc.fHeight = 22;
    SkAutoTUnref<GrTexture> dummyTexture2(this->createTexture(dummyDesc, NULL, 0));

    if (!dummyTexture1 || ! dummyTexture2) {
        return false;
    }

    static const int NUM_TESTS = 512;

    SkRandom random;
    for (int t = 0; t < NUM_TESTS; ++t) {

#if 0
        GrPrintf("\nTest Program %d\n-------------\n", t);
        static const int stop = -1;
        if (t == stop) {
            int breakpointhere = 9;
        }
#endif

        GrGLProgramDesc pdesc;

        int currAttribIndex = 1;  // we need to always leave room for position
        int currTextureCoordSet = 0;
        GrTexture* dummyTextures[] = {dummyTexture1.get(), dummyTexture2.get()};

        int numStages = random.nextULessThan(maxStages + 1);
        int numColorStages = random.nextULessThan(numStages + 1);
        int numCoverageStages = numStages - numColorStages;

        SkAutoSTMalloc<8, const GrFragmentStage*> stages(numStages);

        bool usePathRendering = this->glCaps().pathRenderingSupport() && random.nextBool();

        GrGpu::DrawType drawType = usePathRendering ? GrGpu::kDrawPath_DrawType :
                                                      GrGpu::kDrawPoints_DrawType;

        SkAutoTDelete<GrGeometryStage> geometryProcessor;
        bool hasGeometryProcessor = usePathRendering ? false : random.nextBool();
        if (hasGeometryProcessor) {
            while (true) {
                SkAutoTUnref<const GrGeometryProcessor> effect(
                        GrProcessorTestFactory<GrGeometryProcessor>::CreateStage(&random, this->getContext(), *this->caps(),
                                                         dummyTextures));
                SkASSERT(effect);
                // Only geometryProcessor can use vertex shader
                GrGeometryStage* stage = SkNEW_ARGS(GrGeometryStage, (effect.get()));
                geometryProcessor.reset(stage);

                // we have to set dummy vertex attribs
                const GrGeometryProcessor::VertexAttribArray& v = effect->getVertexAttribs();
                int numVertexAttribs = v.count();

                SkASSERT(GrGeometryProcessor::kMaxVertexAttribs == 2 &&
                         GrGeometryProcessor::kMaxVertexAttribs >= numVertexAttribs);
                size_t runningStride = GrVertexAttribTypeSize(genericVertexAttribs[0].fType);
                for (int i = 0; i < numVertexAttribs; i++) {
                    genericVertexAttribs[i + 1].fOffset = runningStride;
                    genericVertexAttribs[i + 1].fType =
                            convert_sltype_to_attribtype(v[i].getType());
                    runningStride += GrVertexAttribTypeSize(genericVertexAttribs[i + 1].fType);
                }

                // update the vertex attributes with the ds
                GrDrawState* ds = this->drawState();
                ds->setVertexAttribs<genericVertexAttribs>(numVertexAttribs + 1, runningStride);
                currAttribIndex = numVertexAttribs + 1;
                break;
            }
        }
        for (int s = 0; s < numStages;) {
            SkAutoTUnref<const GrFragmentProcessor> effect(
                    GrProcessorTestFactory<GrFragmentProcessor>::CreateStage(
                                                                            &random,
                                                                            this->getContext(),
                                                                            *this->caps(),
                                                                            dummyTextures));
            SkASSERT(effect);

            // If adding this effect would exceed the max texture coord set count then generate a
            // new random effect.
            if (usePathRendering && this->glPathRendering()->texturingMode() ==
                                    GrGLPathRendering::FixedFunction_TexturingMode) {;
                int numTransforms = effect->numTransforms();
                if (currTextureCoordSet + numTransforms > this->glCaps().maxFixedFunctionTextureCoords()) {
                    continue;
                }
                currTextureCoordSet += numTransforms;
            }
//.........这里部分代码省略.........

int tool_main(int argc, char** argv) {
    SetupCrashHandler();
    SkCommandLineFlags::Parse(argc, argv);
#if SK_ENABLE_INST_COUNT
    if (FLAGS_leaks) {
        gPrintInstCount = true;
    }
#endif
    SkAutoGraphics ag;

    // First, parse some flags.
    BenchLogger logger;
    if (FLAGS_logFile.count()) {
        logger.SetLogFile(FLAGS_logFile[0]);
    }

    LoggerResultsWriter logWriter(logger, FLAGS_timeFormat[0]);
    MultiResultsWriter writer;
    writer.add(&logWriter);

    SkAutoTDelete<JSONResultsWriter> jsonWriter;
    if (FLAGS_outResultsFile.count()) {
        jsonWriter.reset(SkNEW(JSONResultsWriter(FLAGS_outResultsFile[0])));
        writer.add(jsonWriter.get());
    }

    // Instantiate after all the writers have been added to writer so that we
    // call close() before their destructors are called on the way out.
    CallEnd<MultiResultsWriter> ender(writer);

    const uint8_t alpha = FLAGS_forceBlend ? 0x80 : 0xFF;
    SkTriState::State dither = SkTriState::kDefault;
    for (size_t i = 0; i < 3; i++) {
        if (strcmp(SkTriState::Name[i], FLAGS_forceDither[0]) == 0) {
            dither = static_cast<SkTriState::State>(i);
        }
    }

    BenchMode benchMode = kNormal_BenchMode;
    for (size_t i = 0; i < SK_ARRAY_COUNT(BenchMode_Name); i++) {
        if (strcmp(FLAGS_mode[0], BenchMode_Name[i]) == 0) {
            benchMode = static_cast<BenchMode>(i);
        }
    }

    SkTDArray<int> configs;
    bool runDefaultConfigs = false;
    // Try user-given configs first.
    for (int i = 0; i < FLAGS_config.count(); i++) {
        for (int j = 0; j < static_cast<int>(SK_ARRAY_COUNT(gConfigs)); ++j) {
            if (0 == strcmp(FLAGS_config[i], gConfigs[j].name)) {
                *configs.append() = j;
            } else if (0 == strcmp(FLAGS_config[i], kDefaultsConfigStr)) {
                runDefaultConfigs = true;
            }
        }
    }
    // If there weren't any, fill in with defaults.
    if (runDefaultConfigs) {
        for (int i = 0; i < static_cast<int>(SK_ARRAY_COUNT(gConfigs)); ++i) {
            if (gConfigs[i].runByDefault) {
                *configs.append() = i;
            }
        }
    }
    // Filter out things we can't run.
    if (kNormal_BenchMode != benchMode) {
        // Non-rendering configs only run in normal mode
        for (int i = 0; i < configs.count(); ++i) {
            const Config& config = gConfigs[configs[i]];
            if (Benchmark::kNonRendering_Backend == config.backend) {
                configs.remove(i, 1);
                --i;
            }
        }
    }

#if SK_SUPPORT_GPU
    for (int i = 0; i < configs.count(); ++i) {
        const Config& config = gConfigs[configs[i]];

        if (Benchmark::kGPU_Backend == config.backend) {
            GrContext* context = gContextFactory.get(config.contextType);
            if (NULL == context) {
                SkDebugf("GrContext could not be created for config %s. Config will be skipped.\n",
                    config.name);
                configs.remove(i);
                --i;
                continue;
            }
            if (config.sampleCount > context->getMaxSampleCount()){
                SkDebugf(
                    "Sample count (%d) for config %s is not supported. Config will be skipped.\n",
                    config.sampleCount, config.name);
                configs.remove(i);
                --i;
                continue;
            }
        }
    }
//.........这里部分代码省略.........