| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "fuzz/Fuzz.h" |
| #include "include/codec/SkCodec.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkData.h" |
| #include "include/core/SkImage.h" |
| #include "include/core/SkImageEncoder.h" |
| #include "include/core/SkMallocPixelRef.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkPath.h" |
| #include "include/core/SkStream.h" |
| #include "include/core/SkSurface.h" |
| #include "include/core/SkTextBlob.h" |
| #include "src/core/SkFontMgrPriv.h" |
| #include "src/core/SkOSFile.h" |
| #include "src/core/SkPicturePriv.h" |
| #include "src/core/SkReadBuffer.h" |
| #include "src/utils/SkOSPath.h" |
| #include "tools/ToolUtils.h" |
| #include "tools/flags/CommandLineFlags.h" |
| #include "tools/fonts/TestFontMgr.h" |
| |
| #include <iostream> |
| #include <map> |
| #include <regex> |
| #include <signal.h> |
| |
| static DEFINE_string2(bytes, b, "", "A path to a file or a directory. If a file, the " |
| "contents will be used as the fuzz bytes. If a directory, all files " |
| "in the directory will be used as fuzz bytes for the fuzzer, one at a " |
| "time."); |
| static DEFINE_string2(name, n, "", "If --type is 'api', fuzz the API with this name."); |
| static DEFINE_string2(dump, d, "", "If not empty, dump 'image*' or 'skp' types as a " |
| "PNG with this name."); |
| DEFINE_bool2(verbose, v, false, "Print more information while fuzzing."); |
| |
| // This cannot be inlined in DEFINE_string2 due to interleaved ifdefs |
| static constexpr char g_type_message[] = "How to interpret --bytes, one of:\n" |
| "android_codec\n" |
| "animated_image_decode\n" |
| "api\n" |
| "color_deserialize\n" |
| "filter_fuzz (equivalent to Chrome's filter_fuzz_stub)\n" |
| "image_decode\n" |
| "image_decode_incremental\n" |
| "image_mode\n" |
| "image_scale\n" |
| "json\n" |
| "path_deserialize\n" |
| "region_deserialize\n" |
| "region_set_path\n" |
| "skp\n" |
| "sksl2glsl\n" |
| "sksl2metal\n" |
| "sksl2pipeline\n" |
| "sksl2spirv\n" |
| #if defined(SK_ENABLE_SKOTTIE) |
| "skottie_json\n" |
| #endif |
| "textblob"; |
| |
| static DEFINE_string2(type, t, "", g_type_message); |
| |
| static int fuzz_file(SkString path, SkString type); |
| static uint8_t calculate_option(SkData*); |
| static SkString try_auto_detect(SkString path, SkString* name); |
| |
| static void fuzz_android_codec(sk_sp<SkData>); |
| static void fuzz_animated_img(sk_sp<SkData>); |
| static void fuzz_api(sk_sp<SkData> bytes, SkString name); |
| static void fuzz_color_deserialize(sk_sp<SkData>); |
| static void fuzz_filter_fuzz(sk_sp<SkData>); |
| static void fuzz_image_decode(sk_sp<SkData>); |
| static void fuzz_image_decode_incremental(sk_sp<SkData>); |
| static void fuzz_img(sk_sp<SkData>, uint8_t, uint8_t); |
| static void fuzz_json(sk_sp<SkData>); |
| static void fuzz_path_deserialize(sk_sp<SkData>); |
| static void fuzz_region_deserialize(sk_sp<SkData>); |
| static void fuzz_region_set_path(sk_sp<SkData>); |
| static void fuzz_skp(sk_sp<SkData>); |
| static void fuzz_sksl2glsl(sk_sp<SkData>); |
| static void fuzz_sksl2metal(sk_sp<SkData>); |
| static void fuzz_sksl2spirv(sk_sp<SkData>); |
| static void fuzz_sksl2pipeline(sk_sp<SkData>); |
| static void fuzz_textblob_deserialize(sk_sp<SkData>); |
| |
| static void print_api_names(); |
| |
| #if defined(SK_ENABLE_SKOTTIE) |
| static void fuzz_skottie_json(sk_sp<SkData>); |
| #endif |
| |
| int main(int argc, char** argv) { |
| CommandLineFlags::SetUsage( |
| "Usage: fuzz -t <type> -b <path/to/file> [-n api-to-fuzz]\n" |
| " fuzz -b <path/to/file>\n" |
| "--help lists the valid types. If type is not specified,\n" |
| "fuzz will make a guess based on the name of the file.\n"); |
| CommandLineFlags::Parse(argc, argv); |
| gSkFontMgr_DefaultFactory = &ToolUtils::MakePortableFontMgr; |
| |
| SkString path = SkString(FLAGS_bytes.isEmpty() ? argv[0] : FLAGS_bytes[0]); |
| SkString type = SkString(FLAGS_type.isEmpty() ? "" : FLAGS_type[0]); |
| |
| if (!sk_isdir(path.c_str())) { |
| return fuzz_file(path, type); |
| } |
| |
| SkOSFile::Iter it(path.c_str()); |
| for (SkString file; it.next(&file); ) { |
| SkString p = SkOSPath::Join(path.c_str(), file.c_str()); |
| SkDebugf("Fuzzing %s\n", p.c_str()); |
| int rv = fuzz_file(p, type); |
| if (rv != 0) { |
| return rv; |
| } |
| } |
| return 0; |
| } |
| |
| static int fuzz_file(SkString path, SkString type) { |
| sk_sp<SkData> bytes(SkData::MakeFromFileName(path.c_str())); |
| if (!bytes) { |
| SkDebugf("Could not read %s\n", path.c_str()); |
| return 1; |
| } |
| |
| SkString name = SkString(FLAGS_name.isEmpty() ? "" : FLAGS_name[0]); |
| |
| if (type.isEmpty()) { |
| type = try_auto_detect(path, &name); |
| } |
| |
| if (type.isEmpty()) { |
| SkDebugf("Could not autodetect type of %s\n", path.c_str()); |
| return 1; |
| } |
| if (type.equals("android_codec")) { |
| fuzz_android_codec(bytes); |
| return 0; |
| } |
| if (type.equals("animated_image_decode")) { |
| fuzz_animated_img(bytes); |
| return 0; |
| } |
| if (type.equals("api")) { |
| fuzz_api(bytes, name); |
| return 0; |
| } |
| if (type.equals("color_deserialize")) { |
| fuzz_color_deserialize(bytes); |
| return 0; |
| } |
| if (type.equals("filter_fuzz")) { |
| fuzz_filter_fuzz(bytes); |
| return 0; |
| } |
| if (type.equals("image_decode")) { |
| fuzz_image_decode(bytes); |
| return 0; |
| } |
| if (type.equals("image_decode_incremental")) { |
| fuzz_image_decode_incremental(bytes); |
| return 0; |
| } |
| if (type.equals("image_scale")) { |
| uint8_t option = calculate_option(bytes.get()); |
| fuzz_img(bytes, option, 0); |
| return 0; |
| } |
| if (type.equals("image_mode")) { |
| uint8_t option = calculate_option(bytes.get()); |
| fuzz_img(bytes, 0, option); |
| return 0; |
| } |
| if (type.equals("json")) { |
| fuzz_json(bytes); |
| return 0; |
| } |
| if (type.equals("path_deserialize")) { |
| fuzz_path_deserialize(bytes); |
| return 0; |
| } |
| if (type.equals("region_deserialize")) { |
| fuzz_region_deserialize(bytes); |
| return 0; |
| } |
| if (type.equals("region_set_path")) { |
| fuzz_region_set_path(bytes); |
| return 0; |
| } |
| if (type.equals("pipe")) { |
| SkDebugf("I would prefer not to.\n"); |
| return 0; |
| } |
| #if defined(SK_ENABLE_SKOTTIE) |
| if (type.equals("skottie_json")) { |
| fuzz_skottie_json(bytes); |
| return 0; |
| } |
| #endif |
| if (type.equals("skp")) { |
| fuzz_skp(bytes); |
| return 0; |
| } |
| if (type.equals("sksl2glsl")) { |
| fuzz_sksl2glsl(bytes); |
| return 0; |
| } |
| if (type.equals("sksl2metal")) { |
| fuzz_sksl2metal(bytes); |
| return 0; |
| } |
| if (type.equals("sksl2spirv")) { |
| fuzz_sksl2spirv(bytes); |
| return 0; |
| } |
| if (type.equals("sksl2pipeline")) { |
| fuzz_sksl2pipeline(bytes); |
| return 0; |
| } |
| if (type.equals("textblob")) { |
| fuzz_textblob_deserialize(bytes); |
| return 0; |
| } |
| SkDebugf("Unknown type %s\n", type.c_str()); |
| CommandLineFlags::PrintUsage(); |
| return 1; |
| } |
| |
| static std::map<std::string, std::string> cf_api_map = { |
| {"api_draw_functions", "DrawFunctions"}, |
| {"api_gradients", "Gradients"}, |
| {"api_image_filter", "ImageFilter"}, |
| {"api_mock_gpu_canvas", "MockGPUCanvas"}, |
| {"api_null_canvas", "NullCanvas"}, |
| {"api_path_measure", "PathMeasure"}, |
| {"api_pathop", "Pathop"}, |
| {"api_polyutils", "PolyUtils"}, |
| {"api_raster_n32_canvas", "RasterN32Canvas"}, |
| {"jpeg_encoder", "JPEGEncoder"}, |
| {"png_encoder", "PNGEncoder"}, |
| {"skia_pathop_fuzzer", "LegacyChromiumPathop"}, |
| {"webp_encoder", "WEBPEncoder"} |
| }; |
| |
| // maps clusterfuzz/oss-fuzz -> Skia's name |
| static std::map<std::string, std::string> cf_map = { |
| {"android_codec", "android_codec"}, |
| {"animated_image_decode", "animated_image_decode"}, |
| {"image_decode", "image_decode"}, |
| {"image_decode_incremental", "image_decode_incremental"}, |
| {"image_filter_deserialize", "filter_fuzz"}, |
| {"image_filter_deserialize_width", "filter_fuzz"}, |
| {"path_deserialize", "path_deserialize"}, |
| {"region_deserialize", "region_deserialize"}, |
| {"region_set_path", "region_set_path"}, |
| {"skjson", "json"}, |
| {"sksl2glsl", "sksl2glsl"}, |
| {"sksl2metal", "sksl2metal"}, |
| {"sksl2spirv", "sksl2spirv"}, |
| {"sksl2pipeline", "sksl2pipeline"}, |
| #if defined(SK_ENABLE_SKOTTIE) |
| {"skottie_json", "skottie_json"}, |
| #endif |
| {"textblob_deserialize", "textblob"} |
| }; |
| |
| static SkString try_auto_detect(SkString path, SkString* name) { |
| std::cmatch m; |
| std::regex clusterfuzz("clusterfuzz-testcase(-minimized)?-([a-z0-9_]+)-[\\d]+"); |
| std::regex skiafuzzer("(api-)?(\\w+)-[a-f0-9]+"); |
| |
| if (std::regex_search(path.c_str(), m, clusterfuzz)) { |
| std::string type = m.str(2); |
| |
| if (cf_api_map.find(type) != cf_api_map.end()) { |
| *name = SkString(cf_api_map[type].c_str()); |
| return SkString("api"); |
| } else { |
| if (cf_map.find(type) != cf_map.end()) { |
| return SkString(cf_map[type].c_str()); |
| } |
| } |
| } else if (std::regex_search(path.c_str(), m, skiafuzzer)) { |
| std::string a1 = m.str(1); |
| std::string typeOrName = m.str(2); |
| if (a1.length() > 0) { |
| // it's an api fuzzer |
| *name = SkString(typeOrName.c_str()); |
| return SkString("api"); |
| } else { |
| return SkString(typeOrName.c_str()); |
| } |
| } |
| |
| return SkString(""); |
| } |
| |
| void FuzzJSON(sk_sp<SkData> bytes); |
| |
| static void fuzz_json(sk_sp<SkData> bytes){ |
| FuzzJSON(bytes); |
| SkDebugf("[terminated] Done parsing!\n"); |
| } |
| |
| #if defined(SK_ENABLE_SKOTTIE) |
| void FuzzSkottieJSON(sk_sp<SkData> bytes); |
| |
| static void fuzz_skottie_json(sk_sp<SkData> bytes){ |
| FuzzSkottieJSON(bytes); |
| SkDebugf("[terminated] Done animating!\n"); |
| } |
| #endif |
| |
| // This adds up the first 1024 bytes and returns it as an 8 bit integer. This allows afl-fuzz to |
| // deterministically excercise different paths, or *options* (such as different scaling sizes or |
| // different image modes) without needing to introduce a parameter. This way we don't need a |
| // image_scale1, image_scale2, image_scale4, etc fuzzer, we can just have a image_scale fuzzer. |
| // Clients are expected to transform this number into a different range, e.g. with modulo (%). |
| static uint8_t calculate_option(SkData* bytes) { |
| uint8_t total = 0; |
| const uint8_t* data = bytes->bytes(); |
| for (size_t i = 0; i < 1024 && i < bytes->size(); i++) { |
| total += data[i]; |
| } |
| return total; |
| } |
| |
| static void print_api_names(){ |
| SkDebugf("When using --type api, please choose an API to fuzz with --name/-n:\n"); |
| for (const Fuzzable& fuzzable : sk_tools::Registry<Fuzzable>::Range()) { |
| SkDebugf("\t%s\n", fuzzable.name); |
| } |
| } |
| |
| static void fuzz_api(sk_sp<SkData> bytes, SkString name) { |
| for (const Fuzzable& fuzzable : sk_tools::Registry<Fuzzable>::Range()) { |
| if (name.equals(fuzzable.name)) { |
| SkDebugf("Fuzzing %s...\n", fuzzable.name); |
| Fuzz fuzz(std::move(bytes)); |
| fuzzable.fn(&fuzz); |
| SkDebugf("[terminated] Success!\n"); |
| return; |
| } |
| } |
| |
| print_api_names(); |
| } |
| |
| static void dump_png(SkBitmap bitmap) { |
| if (!FLAGS_dump.isEmpty()) { |
| ToolUtils::EncodeImageToFile(FLAGS_dump[0], bitmap, SkEncodedImageFormat::kPNG, 100); |
| SkDebugf("Dumped to %s\n", FLAGS_dump[0]); |
| } |
| } |
| |
| bool FuzzAnimatedImage(sk_sp<SkData> bytes); |
| |
| static void fuzz_animated_img(sk_sp<SkData> bytes) { |
| if (FuzzAnimatedImage(bytes)) { |
| SkDebugf("[terminated] Success from decoding/drawing animated image!\n"); |
| return; |
| } |
| SkDebugf("[terminated] Could not decode or draw animated image.\n"); |
| } |
| |
| bool FuzzImageDecode(sk_sp<SkData> bytes); |
| |
| static void fuzz_image_decode(sk_sp<SkData> bytes) { |
| if (FuzzImageDecode(bytes)) { |
| SkDebugf("[terminated] Success from decoding/drawing image!\n"); |
| return; |
| } |
| SkDebugf("[terminated] Could not decode or draw image.\n"); |
| } |
| |
| bool FuzzIncrementalImageDecode(sk_sp<SkData> bytes); |
| |
| static void fuzz_image_decode_incremental(sk_sp<SkData> bytes) { |
| if (FuzzIncrementalImageDecode(bytes)) { |
| SkDebugf("[terminated] Success using incremental decode!\n"); |
| return; |
| } |
| SkDebugf("[terminated] Could not incrementally decode and image.\n"); |
| } |
| |
| bool FuzzAndroidCodec(sk_sp<SkData> bytes, uint8_t sampleSize); |
| |
| static void fuzz_android_codec(sk_sp<SkData> bytes) { |
| Fuzz fuzz(bytes); |
| uint8_t sampleSize; |
| fuzz.nextRange(&sampleSize, 1, 64); |
| bytes = SkData::MakeSubset(bytes.get(), 1, bytes->size() - 1); |
| if (FuzzAndroidCodec(bytes, sampleSize)) { |
| SkDebugf("[terminated] Success on Android Codec sampleSize=%u!\n", sampleSize); |
| return; |
| } |
| SkDebugf("[terminated] Could not use Android Codec sampleSize=%u!\n", sampleSize); |
| } |
| |
| // This is a "legacy" fuzzer that likely does too much. It was based off of how |
| // DM reads in images. image_decode, image_decode_incremental and android_codec |
| // are more targeted fuzzers that do a subset of what this one does. |
| static void fuzz_img(sk_sp<SkData> bytes, uint8_t scale, uint8_t mode) { |
| // We can scale 1x, 2x, 4x, 8x, 16x |
| scale = scale % 5; |
| float fscale = (float)pow(2.0f, scale); |
| SkDebugf("Scaling factor: %f\n", fscale); |
| |
| // We have 5 different modes of decoding. |
| mode = mode % 5; |
| SkDebugf("Mode: %d\n", mode); |
| |
| // This is mostly copied from DMSrcSink's CodecSrc::draw method. |
| SkDebugf("Decoding\n"); |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromData(bytes)); |
| if (nullptr == codec.get()) { |
| SkDebugf("[terminated] Couldn't create codec.\n"); |
| return; |
| } |
| |
| SkImageInfo decodeInfo = codec->getInfo(); |
| SkISize size = codec->getScaledDimensions(fscale); |
| decodeInfo = decodeInfo.makeDimensions(size); |
| |
| SkBitmap bitmap; |
| SkCodec::Options options; |
| options.fZeroInitialized = SkCodec::kYes_ZeroInitialized; |
| |
| if (!bitmap.tryAllocPixelsFlags(decodeInfo, SkBitmap::kZeroPixels_AllocFlag)) { |
| SkDebugf("[terminated] Could not allocate memory. Image might be too large (%d x %d)", |
| decodeInfo.width(), decodeInfo.height()); |
| return; |
| } |
| |
| switch (mode) { |
| case 0: {//kCodecZeroInit_Mode, kCodec_Mode |
| switch (codec->getPixels(decodeInfo, bitmap.getPixels(), bitmap.rowBytes(), &options)) { |
| case SkCodec::kSuccess: |
| SkDebugf("[terminated] Success!\n"); |
| break; |
| case SkCodec::kIncompleteInput: |
| SkDebugf("[terminated] Partial Success\n"); |
| break; |
| case SkCodec::kErrorInInput: |
| SkDebugf("[terminated] Partial Success with error\n"); |
| break; |
| case SkCodec::kInvalidConversion: |
| SkDebugf("Incompatible colortype conversion\n"); |
| // Crash to allow afl-fuzz to know this was a bug. |
| raise(SIGSEGV); |
| default: |
| SkDebugf("[terminated] Couldn't getPixels.\n"); |
| return; |
| } |
| break; |
| } |
| case 1: {//kScanline_Mode |
| if (SkCodec::kSuccess != codec->startScanlineDecode(decodeInfo)) { |
| SkDebugf("[terminated] Could not start scanline decoder\n"); |
| return; |
| } |
| |
| void* dst = bitmap.getAddr(0, 0); |
| size_t rowBytes = bitmap.rowBytes(); |
| uint32_t height = decodeInfo.height(); |
| // We do not need to check the return value. On an incomplete |
| // image, memory will be filled with a default value. |
| codec->getScanlines(dst, height, rowBytes); |
| SkDebugf("[terminated] Success!\n"); |
| break; |
| } |
| case 2: { //kStripe_Mode |
| const int height = decodeInfo.height(); |
| // This value is chosen arbitrarily. We exercise more cases by choosing a value that |
| // does not align with image blocks. |
| const int stripeHeight = 37; |
| const int numStripes = (height + stripeHeight - 1) / stripeHeight; |
| |
| // Decode odd stripes |
| if (SkCodec::kSuccess != codec->startScanlineDecode(decodeInfo) |
| || SkCodec::kTopDown_SkScanlineOrder != codec->getScanlineOrder()) { |
| // This mode was designed to test the new skip scanlines API in libjpeg-turbo. |
| // Jpegs have kTopDown_SkScanlineOrder, and at this time, it is not interesting |
| // to run this test for image types that do not have this scanline ordering. |
| SkDebugf("[terminated] Could not start top-down scanline decoder\n"); |
| return; |
| } |
| |
| for (int i = 0; i < numStripes; i += 2) { |
| // Skip a stripe |
| const int linesToSkip = SkTMin(stripeHeight, height - i * stripeHeight); |
| codec->skipScanlines(linesToSkip); |
| |
| // Read a stripe |
| const int startY = (i + 1) * stripeHeight; |
| const int linesToRead = SkTMin(stripeHeight, height - startY); |
| if (linesToRead > 0) { |
| codec->getScanlines(bitmap.getAddr(0, startY), linesToRead, bitmap.rowBytes()); |
| } |
| } |
| |
| // Decode even stripes |
| const SkCodec::Result startResult = codec->startScanlineDecode(decodeInfo); |
| if (SkCodec::kSuccess != startResult) { |
| SkDebugf("[terminated] Failed to restart scanline decoder with same parameters.\n"); |
| return; |
| } |
| for (int i = 0; i < numStripes; i += 2) { |
| // Read a stripe |
| const int startY = i * stripeHeight; |
| const int linesToRead = SkTMin(stripeHeight, height - startY); |
| codec->getScanlines(bitmap.getAddr(0, startY), linesToRead, bitmap.rowBytes()); |
| |
| // Skip a stripe |
| const int linesToSkip = SkTMin(stripeHeight, height - (i + 1) * stripeHeight); |
| if (linesToSkip > 0) { |
| codec->skipScanlines(linesToSkip); |
| } |
| } |
| SkDebugf("[terminated] Success!\n"); |
| break; |
| } |
| case 3: { //kSubset_Mode |
| // Arbitrarily choose a divisor. |
| int divisor = 2; |
| // Total width/height of the image. |
| const int W = codec->getInfo().width(); |
| const int H = codec->getInfo().height(); |
| if (divisor > W || divisor > H) { |
| SkDebugf("[terminated] Cannot codec subset: divisor %d is too big " |
| "with dimensions (%d x %d)\n", divisor, W, H); |
| return; |
| } |
| // subset dimensions |
| // SkWebpCodec, the only one that supports subsets, requires even top/left boundaries. |
| const int w = SkAlign2(W / divisor); |
| const int h = SkAlign2(H / divisor); |
| SkIRect subset; |
| SkCodec::Options opts; |
| opts.fSubset = ⊂ |
| SkBitmap subsetBm; |
| // We will reuse pixel memory from bitmap. |
| void* pixels = bitmap.getPixels(); |
| // Keep track of left and top (for drawing subsetBm into canvas). We could use |
| // fscale * x and fscale * y, but we want integers such that the next subset will start |
| // where the last one ended. So we'll add decodeInfo.width() and height(). |
| int left = 0; |
| for (int x = 0; x < W; x += w) { |
| int top = 0; |
| for (int y = 0; y < H; y+= h) { |
| // Do not make the subset go off the edge of the image. |
| const int preScaleW = SkTMin(w, W - x); |
| const int preScaleH = SkTMin(h, H - y); |
| subset.setXYWH(x, y, preScaleW, preScaleH); |
| // And fscale |
| // FIXME: Should we have a version of getScaledDimensions that takes a subset |
| // into account? |
| decodeInfo = decodeInfo.makeWH( |
| SkTMax(1, SkScalarRoundToInt(preScaleW * fscale)), |
| SkTMax(1, SkScalarRoundToInt(preScaleH * fscale))); |
| size_t rowBytes = decodeInfo.minRowBytes(); |
| if (!subsetBm.installPixels(decodeInfo, pixels, rowBytes)) { |
| SkDebugf("[terminated] Could not install pixels.\n"); |
| return; |
| } |
| const SkCodec::Result result = codec->getPixels(decodeInfo, pixels, rowBytes, |
| &opts); |
| switch (result) { |
| case SkCodec::kSuccess: |
| case SkCodec::kIncompleteInput: |
| case SkCodec::kErrorInInput: |
| SkDebugf("okay\n"); |
| break; |
| case SkCodec::kInvalidConversion: |
| if (0 == (x|y)) { |
| // First subset is okay to return unimplemented. |
| SkDebugf("[terminated] Incompatible colortype conversion\n"); |
| return; |
| } |
| // If the first subset succeeded, a later one should not fail. |
| // fall through to failure |
| case SkCodec::kUnimplemented: |
| if (0 == (x|y)) { |
| // First subset is okay to return unimplemented. |
| SkDebugf("[terminated] subset codec not supported\n"); |
| return; |
| } |
| // If the first subset succeeded, why would a later one fail? |
| // fall through to failure |
| default: |
| SkDebugf("[terminated] subset codec failed to decode (%d, %d, %d, %d) " |
| "with dimensions (%d x %d)\t error %d\n", |
| x, y, decodeInfo.width(), decodeInfo.height(), |
| W, H, result); |
| return; |
| } |
| // translate by the scaled height. |
| top += decodeInfo.height(); |
| } |
| // translate by the scaled width. |
| left += decodeInfo.width(); |
| } |
| SkDebugf("[terminated] Success!\n"); |
| break; |
| } |
| case 4: { //kAnimated_Mode |
| std::vector<SkCodec::FrameInfo> frameInfos = codec->getFrameInfo(); |
| if (frameInfos.size() == 0) { |
| SkDebugf("[terminated] Not an animated image\n"); |
| break; |
| } |
| |
| for (size_t i = 0; i < frameInfos.size(); i++) { |
| options.fFrameIndex = i; |
| auto result = codec->startIncrementalDecode(decodeInfo, bitmap.getPixels(), |
| bitmap.rowBytes(), &options); |
| if (SkCodec::kSuccess != result) { |
| SkDebugf("[terminated] failed to start incremental decode " |
| "in frame %d with error %d\n", i, result); |
| return; |
| } |
| |
| result = codec->incrementalDecode(); |
| if (result == SkCodec::kIncompleteInput || result == SkCodec::kErrorInInput) { |
| SkDebugf("okay\n"); |
| // Frames beyond this one will not decode. |
| break; |
| } |
| if (result == SkCodec::kSuccess) { |
| SkDebugf("okay - decoded frame %d\n", i); |
| } else { |
| SkDebugf("[terminated] incremental decode failed with " |
| "error %d\n", result); |
| return; |
| } |
| } |
| SkDebugf("[terminated] Success!\n"); |
| break; |
| } |
| default: |
| SkDebugf("[terminated] Mode not implemented yet\n"); |
| } |
| |
| dump_png(bitmap); |
| } |
| |
| static void fuzz_skp(sk_sp<SkData> bytes) { |
| SkReadBuffer buf(bytes->data(), bytes->size()); |
| SkDebugf("Decoding\n"); |
| sk_sp<SkPicture> pic(SkPicturePriv::MakeFromBuffer(buf)); |
| if (!pic) { |
| SkDebugf("[terminated] Couldn't decode as a picture.\n"); |
| return; |
| } |
| SkDebugf("Rendering\n"); |
| SkBitmap bitmap; |
| if (!FLAGS_dump.isEmpty()) { |
| SkIRect size = pic->cullRect().roundOut(); |
| bitmap.allocN32Pixels(size.width(), size.height()); |
| } |
| SkCanvas canvas(bitmap); |
| canvas.drawPicture(pic); |
| SkDebugf("[terminated] Success! Decoded and rendered an SkPicture!\n"); |
| dump_png(bitmap); |
| } |
| |
| static void fuzz_color_deserialize(sk_sp<SkData> bytes) { |
| sk_sp<SkColorSpace> space(SkColorSpace::Deserialize(bytes->data(), bytes->size())); |
| if (!space) { |
| SkDebugf("[terminated] Couldn't deserialize Colorspace.\n"); |
| return; |
| } |
| SkDebugf("[terminated] Success! deserialized Colorspace.\n"); |
| } |
| |
| void FuzzPathDeserialize(SkReadBuffer& buf); |
| |
| static void fuzz_path_deserialize(sk_sp<SkData> bytes) { |
| SkReadBuffer buf(bytes->data(), bytes->size()); |
| FuzzPathDeserialize(buf); |
| SkDebugf("[terminated] path_deserialize didn't crash!\n"); |
| } |
| |
| bool FuzzRegionDeserialize(sk_sp<SkData> bytes); |
| |
| static void fuzz_region_deserialize(sk_sp<SkData> bytes) { |
| if (!FuzzRegionDeserialize(bytes)) { |
| SkDebugf("[terminated] Couldn't initialize SkRegion.\n"); |
| return; |
| } |
| SkDebugf("[terminated] Success! Initialized SkRegion.\n"); |
| } |
| |
| void FuzzTextBlobDeserialize(SkReadBuffer& buf); |
| |
| static void fuzz_textblob_deserialize(sk_sp<SkData> bytes) { |
| SkReadBuffer buf(bytes->data(), bytes->size()); |
| FuzzTextBlobDeserialize(buf); |
| SkDebugf("[terminated] textblob didn't crash!\n"); |
| } |
| |
| void FuzzRegionSetPath(Fuzz* fuzz); |
| |
| static void fuzz_region_set_path(sk_sp<SkData> bytes) { |
| Fuzz fuzz(bytes); |
| FuzzRegionSetPath(&fuzz); |
| SkDebugf("[terminated] region_set_path didn't crash!\n"); |
| } |
| |
| void FuzzImageFilterDeserialize(sk_sp<SkData> bytes); |
| |
| static void fuzz_filter_fuzz(sk_sp<SkData> bytes) { |
| FuzzImageFilterDeserialize(bytes); |
| SkDebugf("[terminated] filter_fuzz didn't crash!\n"); |
| } |
| |
| bool FuzzSKSL2GLSL(sk_sp<SkData> bytes); |
| |
| static void fuzz_sksl2glsl(sk_sp<SkData> bytes) { |
| if (FuzzSKSL2GLSL(bytes)) { |
| SkDebugf("[terminated] Success! Compiled input to GLSL.\n"); |
| } else { |
| SkDebugf("[terminated] Could not compile input to GLSL.\n"); |
| } |
| } |
| |
| bool FuzzSKSL2SPIRV(sk_sp<SkData> bytes); |
| |
| static void fuzz_sksl2spirv(sk_sp<SkData> bytes) { |
| if (FuzzSKSL2SPIRV(bytes)) { |
| SkDebugf("[terminated] Success! Compiled input to SPIRV.\n"); |
| } else { |
| SkDebugf("[terminated] Could not compile input to SPIRV.\n"); |
| } |
| } |
| |
| bool FuzzSKSL2Metal(sk_sp<SkData> bytes); |
| |
| static void fuzz_sksl2metal(sk_sp<SkData> bytes) { |
| if (FuzzSKSL2Metal(bytes)) { |
| SkDebugf("[terminated] Success! Compiled input to Metal.\n"); |
| } else { |
| SkDebugf("[terminated] Could not compile input to Metal.\n"); |
| } |
| } |
| |
| bool FuzzSKSL2Pipeline(sk_sp<SkData> bytes); |
| |
| static void fuzz_sksl2pipeline(sk_sp<SkData> bytes) { |
| if (FuzzSKSL2Pipeline(bytes)) { |
| SkDebugf("[terminated] Success! Compiled input to pipeline stage.\n"); |
| } else { |
| SkDebugf("[terminated] Could not compile input to pipeline stage.\n"); |
| } |
| } |
