| /* |
| * Copyright 2015 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "include/codec/SkAndroidCodec.h" |
| #include "include/codec/SkCodec.h" |
| #include "include/core/SkAlphaType.h" |
| #include "include/core/SkBitmap.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkColorSpace.h" |
| #include "include/core/SkColorType.h" |
| #include "include/core/SkData.h" |
| #include "include/core/SkEncodedImageFormat.h" |
| #include "include/core/SkImage.h" |
| #include "include/core/SkImageEncoder.h" |
| #include "include/core/SkImageGenerator.h" |
| #include "include/core/SkImageInfo.h" |
| #include "include/core/SkPixmap.h" |
| #include "include/core/SkPngChunkReader.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkRefCnt.h" |
| #include "include/core/SkSize.h" |
| #include "include/core/SkStream.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkTypes.h" |
| #include "include/encode/SkJpegEncoder.h" |
| #include "include/encode/SkPngEncoder.h" |
| #include "include/encode/SkWebpEncoder.h" |
| #include "include/private/base/SkAlign.h" |
| #include "include/private/base/SkDebug.h" |
| #include "include/private/base/SkMalloc.h" |
| #include "include/private/base/SkTemplates.h" |
| #include "modules/skcms/skcms.h" |
| #include "src/base/SkAutoMalloc.h" |
| #include "src/base/SkRandom.h" |
| #include "src/codec/SkCodecImageGenerator.h" |
| #include "src/core/SkColorSpacePriv.h" |
| #include "src/core/SkMD5.h" |
| #include "src/core/SkStreamPriv.h" |
| #include "tests/FakeStreams.h" |
| #include "tests/Test.h" |
| #include "tools/Resources.h" |
| #include "tools/ToolUtils.h" |
| |
| #ifdef SK_ENABLE_ANDROID_UTILS |
| #include "client_utils/android/FrontBufferedStream.h" |
| #endif |
| |
| #include <png.h> |
| #include <pngconf.h> |
| #include <setjmp.h> |
| |
| #include <algorithm> |
| #include <cstdint> |
| #include <cstring> |
| #include <initializer_list> |
| #include <memory> |
| #include <utility> |
| #include <vector> |
| |
| using namespace skia_private; |
| |
| #if PNG_LIBPNG_VER_MAJOR == 1 && PNG_LIBPNG_VER_MINOR < 5 |
| // FIXME (scroggo): Google3 needs to be updated to use a newer version of libpng. In |
| // the meantime, we had to break some pieces of SkPngCodec in order to support Google3. |
| // The parts that are broken are likely not used by Google3. |
| #define SK_PNG_DISABLE_TESTS |
| #endif |
| |
| static SkMD5::Digest md5(const SkBitmap& bm) { |
| SkASSERT(bm.getPixels()); |
| SkMD5 md5; |
| size_t rowLen = bm.info().bytesPerPixel() * bm.width(); |
| for (int y = 0; y < bm.height(); ++y) { |
| md5.write(bm.getAddr(0, y), rowLen); |
| } |
| return md5.finish(); |
| } |
| |
| /** |
| * Compute the digest for bm and compare it to a known good digest. |
| * @param r Reporter to assert that bm's digest matches goodDigest. |
| * @param goodDigest The known good digest to compare to. |
| * @param bm The bitmap to test. |
| */ |
| static void compare_to_good_digest(skiatest::Reporter* r, const SkMD5::Digest& goodDigest, |
| const SkBitmap& bm) { |
| SkMD5::Digest digest = md5(bm); |
| REPORTER_ASSERT(r, digest == goodDigest); |
| } |
| |
| /** |
| * Test decoding an SkCodec to a particular SkImageInfo. |
| * |
| * Calling getPixels(info) should return expectedResult, and if goodDigest is non nullptr, |
| * the resulting decode should match. |
| */ |
| template<typename Codec> |
| static void test_info(skiatest::Reporter* r, Codec* codec, const SkImageInfo& info, |
| SkCodec::Result expectedResult, const SkMD5::Digest* goodDigest) { |
| SkBitmap bm; |
| bm.allocPixels(info); |
| |
| SkCodec::Result result = codec->getPixels(info, bm.getPixels(), bm.rowBytes()); |
| REPORTER_ASSERT(r, result == expectedResult); |
| |
| if (goodDigest) { |
| compare_to_good_digest(r, *goodDigest, bm); |
| } |
| } |
| |
| SkIRect generate_random_subset(SkRandom* rand, int w, int h) { |
| SkIRect rect; |
| do { |
| rect.fLeft = rand->nextRangeU(0, w); |
| rect.fTop = rand->nextRangeU(0, h); |
| rect.fRight = rand->nextRangeU(0, w); |
| rect.fBottom = rand->nextRangeU(0, h); |
| rect.sort(); |
| } while (rect.isEmpty()); |
| return rect; |
| } |
| |
| static void test_incremental_decode(skiatest::Reporter* r, SkCodec* codec, const SkImageInfo& info, |
| const SkMD5::Digest& goodDigest) { |
| SkBitmap bm; |
| bm.allocPixels(info); |
| |
| REPORTER_ASSERT(r, SkCodec::kSuccess == codec->startIncrementalDecode(info, bm.getPixels(), |
| bm.rowBytes())); |
| |
| REPORTER_ASSERT(r, SkCodec::kSuccess == codec->incrementalDecode()); |
| |
| compare_to_good_digest(r, goodDigest, bm); |
| } |
| |
| // Test in stripes, similar to DM's kStripe_Mode |
| static void test_in_stripes(skiatest::Reporter* r, SkCodec* codec, const SkImageInfo& info, |
| const SkMD5::Digest& goodDigest) { |
| SkBitmap bm; |
| bm.allocPixels(info); |
| bm.eraseColor(SK_ColorYELLOW); |
| |
| const int height = info.height(); |
| // Note that if numStripes does not evenly divide height there will be an extra |
| // stripe. |
| const int numStripes = 4; |
| |
| if (numStripes > height) { |
| // Image is too small. |
| return; |
| } |
| |
| const int stripeHeight = height / numStripes; |
| |
| // Iterate through the image twice. Once to decode odd stripes, and once for even. |
| for (int oddEven = 1; oddEven >= 0; oddEven--) { |
| for (int y = oddEven * stripeHeight; y < height; y += 2 * stripeHeight) { |
| SkIRect subset = SkIRect::MakeLTRB(0, y, info.width(), |
| std::min(y + stripeHeight, height)); |
| SkCodec::Options options; |
| options.fSubset = ⊂ |
| if (SkCodec::kSuccess != codec->startIncrementalDecode(info, bm.getAddr(0, y), |
| bm.rowBytes(), &options)) { |
| ERRORF(r, "failed to start incremental decode!\ttop: %i\tbottom%i\n", |
| subset.top(), subset.bottom()); |
| return; |
| } |
| if (SkCodec::kSuccess != codec->incrementalDecode()) { |
| ERRORF(r, "failed incremental decode starting from line %i\n", y); |
| return; |
| } |
| } |
| } |
| |
| compare_to_good_digest(r, goodDigest, bm); |
| } |
| |
| template<typename Codec> |
| static void test_codec(skiatest::Reporter* r, const char* path, Codec* codec, SkBitmap& bm, |
| const SkImageInfo& info, const SkISize& size, SkCodec::Result expectedResult, |
| SkMD5::Digest* digest, const SkMD5::Digest* goodDigest) { |
| |
| REPORTER_ASSERT(r, info.dimensions() == size); |
| bm.allocPixels(info); |
| |
| SkCodec::Result result = codec->getPixels(info, bm.getPixels(), bm.rowBytes()); |
| REPORTER_ASSERT(r, result == expectedResult); |
| |
| *digest = md5(bm); |
| if (goodDigest) { |
| REPORTER_ASSERT(r, *digest == *goodDigest); |
| } |
| |
| { |
| // Test decoding to 565 |
| SkImageInfo info565 = info.makeColorType(kRGB_565_SkColorType); |
| if (info.alphaType() == kOpaque_SkAlphaType) { |
| // Decoding to 565 should succeed. |
| SkBitmap bm565; |
| bm565.allocPixels(info565); |
| |
| // This will allow comparison even if the image is incomplete. |
| bm565.eraseColor(SK_ColorBLACK); |
| |
| auto actualResult = codec->getPixels(info565, bm565.getPixels(), bm565.rowBytes()); |
| if (actualResult == expectedResult) { |
| SkMD5::Digest digest565 = md5(bm565); |
| |
| // A request for non-opaque should also succeed. |
| for (auto alpha : { kPremul_SkAlphaType, kUnpremul_SkAlphaType }) { |
| info565 = info565.makeAlphaType(alpha); |
| test_info(r, codec, info565, expectedResult, &digest565); |
| } |
| } else { |
| ERRORF(r, "Decoding %s to 565 failed with result \"%s\"\n\t\t\t\texpected:\"%s\"", |
| path, |
| SkCodec::ResultToString(actualResult), |
| SkCodec::ResultToString(expectedResult)); |
| } |
| } else { |
| test_info(r, codec, info565, SkCodec::kInvalidConversion, nullptr); |
| } |
| } |
| |
| if (codec->getInfo().colorType() == kGray_8_SkColorType) { |
| SkImageInfo grayInfo = codec->getInfo(); |
| SkBitmap grayBm; |
| grayBm.allocPixels(grayInfo); |
| |
| grayBm.eraseColor(SK_ColorBLACK); |
| |
| REPORTER_ASSERT(r, expectedResult == codec->getPixels(grayInfo, |
| grayBm.getPixels(), grayBm.rowBytes())); |
| |
| SkMD5::Digest grayDigest = md5(grayBm); |
| |
| for (auto alpha : { kPremul_SkAlphaType, kUnpremul_SkAlphaType }) { |
| grayInfo = grayInfo.makeAlphaType(alpha); |
| test_info(r, codec, grayInfo, expectedResult, &grayDigest); |
| } |
| } |
| |
| // Verify that re-decoding gives the same result. It is interesting to check this after |
| // a decode to 565, since choosing to decode to 565 may result in some of the decode |
| // options being modified. These options should return to their defaults on another |
| // decode to kN32, so the new digest should match the old digest. |
| test_info(r, codec, info, expectedResult, digest); |
| |
| { |
| // Check alpha type conversions |
| if (info.alphaType() == kOpaque_SkAlphaType) { |
| test_info(r, codec, info.makeAlphaType(kUnpremul_SkAlphaType), |
| expectedResult, digest); |
| test_info(r, codec, info.makeAlphaType(kPremul_SkAlphaType), |
| expectedResult, digest); |
| } else { |
| // Decoding to opaque should fail |
| test_info(r, codec, info.makeAlphaType(kOpaque_SkAlphaType), |
| SkCodec::kInvalidConversion, nullptr); |
| SkAlphaType otherAt = info.alphaType(); |
| if (kPremul_SkAlphaType == otherAt) { |
| otherAt = kUnpremul_SkAlphaType; |
| } else { |
| otherAt = kPremul_SkAlphaType; |
| } |
| // The other non-opaque alpha type should always succeed, but not match. |
| test_info(r, codec, info.makeAlphaType(otherAt), expectedResult, nullptr); |
| } |
| } |
| } |
| |
| static bool supports_partial_scanlines(const char path[]) { |
| static const char* const exts[] = { |
| "jpg", "jpeg", "png", "webp", |
| "JPG", "JPEG", "PNG", "WEBP" |
| }; |
| |
| for (uint32_t i = 0; i < std::size(exts); i++) { |
| if (SkStrEndsWith(path, exts[i])) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| static void check_scanline_decode(skiatest::Reporter* r, |
| SkCodec* codec, |
| SkMD5::Digest* codecDigest, |
| const SkImageInfo& info, |
| const char path[], |
| SkISize size, |
| bool supportsScanlineDecoding, |
| bool supportsIncomplete, |
| bool supportsNewScanlineDecoding) { |
| |
| // Test full image decodes with SkCodec |
| SkBitmap bm; |
| const SkCodec::Result expectedResult = supportsIncomplete ? SkCodec::kIncompleteInput |
| : SkCodec::kSuccess; |
| test_codec(r, path, codec, bm, info, size, expectedResult, codecDigest, nullptr); |
| |
| // Scanline decoding follows. |
| if (supportsNewScanlineDecoding && !supportsIncomplete) { |
| test_incremental_decode(r, codec, info, *codecDigest); |
| // This is only supported by codecs that use incremental decoding to |
| // support subset decodes - png and jpeg (once SkJpegCodec is |
| // converted). |
| if (SkStrEndsWith(path, "png") || SkStrEndsWith(path, "PNG")) { |
| test_in_stripes(r, codec, info, *codecDigest); |
| } |
| } |
| |
| // Need to call startScanlineDecode() first. |
| REPORTER_ASSERT(r, codec->getScanlines(bm.getAddr(0, 0), 1, 0) == 0); |
| REPORTER_ASSERT(r, !codec->skipScanlines(1)); |
| const SkCodec::Result startResult = codec->startScanlineDecode(info); |
| if (supportsScanlineDecoding) { |
| bm.eraseColor(SK_ColorYELLOW); |
| |
| REPORTER_ASSERT(r, startResult == SkCodec::kSuccess); |
| |
| for (int y = 0; y < info.height(); y++) { |
| const int lines = codec->getScanlines(bm.getAddr(0, y), 1, 0); |
| if (!supportsIncomplete) { |
| REPORTER_ASSERT(r, 1 == lines); |
| } |
| } |
| // verify that scanline decoding gives the same result. |
| if (SkCodec::kTopDown_SkScanlineOrder == codec->getScanlineOrder()) { |
| compare_to_good_digest(r, *codecDigest, bm); |
| } |
| |
| // Cannot continue to decode scanlines beyond the end |
| REPORTER_ASSERT(r, codec->getScanlines(bm.getAddr(0, 0), 1, 0) |
| == 0); |
| |
| // Interrupting a scanline decode with a full decode starts from |
| // scratch |
| { |
| REPORTER_ASSERT(r, codec->startScanlineDecode(info) == SkCodec::kSuccess); |
| const int lines = codec->getScanlines(bm.getAddr(0, 0), 1, 0); |
| if (!supportsIncomplete) { |
| REPORTER_ASSERT(r, lines == 1); |
| } |
| REPORTER_ASSERT(r, codec->getPixels(bm.info(), bm.getPixels(), bm.rowBytes()) |
| == expectedResult); |
| REPORTER_ASSERT(r, codec->getScanlines(bm.getAddr(0, 0), 1, 0) |
| == 0); |
| REPORTER_ASSERT(r, codec->skipScanlines(1) |
| == 0); |
| } |
| |
| // Test partial scanline decodes |
| if (supports_partial_scanlines(path) && info.width() >= 3) { |
| SkCodec::Options options; |
| int width = info.width(); |
| int height = info.height(); |
| SkIRect subset = SkIRect::MakeXYWH(2 * (width / 3), 0, width / 3, height); |
| options.fSubset = ⊂ |
| |
| const auto partialStartResult = codec->startScanlineDecode(info, &options); |
| REPORTER_ASSERT(r, partialStartResult == SkCodec::kSuccess); |
| |
| for (int y = 0; y < height; y++) { |
| const int lines = codec->getScanlines(bm.getAddr(0, y), 1, 0); |
| if (!supportsIncomplete) { |
| REPORTER_ASSERT(r, 1 == lines); |
| } |
| } |
| } |
| } else { |
| REPORTER_ASSERT(r, startResult == SkCodec::kUnimplemented); |
| } |
| } |
| |
| static void check_subset_decode(skiatest::Reporter* r, |
| SkCodec* codec, |
| const SkImageInfo& info, |
| SkISize size, |
| bool supportsSubsetDecoding, |
| bool supportsIncomplete) { |
| // This function tests decoding subsets, and will decode a handful of randomly-sized subsets. |
| // Do not attempt to decode subsets of an image of only one pixel, since there is no |
| // meaningful subset. |
| if (size.width() * size.height() == 1) { |
| return; |
| } |
| |
| SkRandom rand; |
| SkIRect subset; |
| SkCodec::Options opts; |
| opts.fSubset = ⊂ |
| for (int i = 0; i < 5; i++) { |
| subset = generate_random_subset(&rand, size.width(), size.height()); |
| SkASSERT(!subset.isEmpty()); |
| const bool supported = codec->getValidSubset(&subset); |
| REPORTER_ASSERT(r, supported == supportsSubsetDecoding); |
| |
| SkImageInfo subsetInfo = info.makeDimensions(subset.size()); |
| SkBitmap bm; |
| bm.allocPixels(subsetInfo); |
| const auto result = codec->getPixels(bm.info(), bm.getPixels(), bm.rowBytes(), &opts); |
| |
| if (supportsSubsetDecoding) { |
| if (!supportsIncomplete) { |
| REPORTER_ASSERT(r, result == SkCodec::kSuccess); |
| } |
| // Webp is the only codec that supports subsets, and it will have modified the subset |
| // to have even left/top. |
| REPORTER_ASSERT(r, SkIsAlign2(subset.fLeft) && SkIsAlign2(subset.fTop)); |
| } else { |
| // No subsets will work. |
| REPORTER_ASSERT(r, result == SkCodec::kUnimplemented); |
| } |
| } |
| } |
| |
| static void check_android_codec(skiatest::Reporter* r, |
| std::unique_ptr<SkCodec> codec, |
| const SkMD5::Digest& codecDigest, |
| const SkImageInfo& info, |
| const char path[], |
| SkISize size, |
| bool supportsScanlineDecoding, |
| bool supportsSubsetDecoding, |
| bool supportsIncomplete, |
| bool supportsNewScanlineDecoding) { |
| if (supportsScanlineDecoding || supportsSubsetDecoding || supportsNewScanlineDecoding) { |
| auto androidCodec = SkAndroidCodec::MakeFromCodec(std::move(codec)); |
| if (!androidCodec) { |
| ERRORF(r, "Unable to decode '%s'", path); |
| return; |
| } |
| |
| SkBitmap bm; |
| SkMD5::Digest androidCodecDigest; |
| const SkCodec::Result expectedResult = supportsIncomplete ? SkCodec::kIncompleteInput |
| : SkCodec::kSuccess; |
| test_codec(r, path, androidCodec.get(), bm, info, size, expectedResult, &androidCodecDigest, |
| &codecDigest); |
| } |
| } |
| |
| static void check_codec_image_generator(skiatest::Reporter* r, |
| const SkMD5::Digest& codecDigest, |
| const SkImageInfo& info, |
| const char path[], |
| bool supportsIncomplete) { |
| // Test SkCodecImageGenerator |
| if (!supportsIncomplete) { |
| std::unique_ptr<SkStream> stream(GetResourceAsStream(path)); |
| sk_sp<SkData> fullData(SkData::MakeFromStream(stream.get(), stream->getLength())); |
| std::unique_ptr<SkImageGenerator> gen( |
| SkCodecImageGenerator::MakeFromEncodedCodec(fullData)); |
| SkBitmap bm; |
| bm.allocPixels(info); |
| REPORTER_ASSERT(r, gen->getPixels(info, bm.getPixels(), bm.rowBytes())); |
| compare_to_good_digest(r, codecDigest, bm); |
| |
| #if !defined(SK_PNG_DISABLE_TESTS) && defined(SK_ENABLE_ANDROID_UTILS) |
| // Test using FrontBufferedStream, as Android does |
| auto bufferedStream = android::skia::FrontBufferedStream::Make( |
| SkMemoryStream::Make(std::move(fullData)), SkCodec::MinBufferedBytesNeeded()); |
| REPORTER_ASSERT(r, bufferedStream); |
| std::unique_ptr<SkCodec> codec = SkCodec::MakeFromStream(std::move(bufferedStream)); |
| REPORTER_ASSERT(r, codec); |
| if (codec) { |
| test_info(r, codec.get(), info, SkCodec::kSuccess, &codecDigest); |
| } |
| #endif |
| } |
| } |
| |
| static void check(skiatest::Reporter* r, |
| const char path[], |
| SkISize size, |
| bool supportsScanlineDecoding, |
| bool supportsSubsetDecoding, |
| bool supportsIncomplete, |
| bool supportsNewScanlineDecoding = false) { |
| // If we're testing incomplete decodes, let's run the same test on full decodes. |
| if (supportsIncomplete) { |
| check(r, path, size, supportsScanlineDecoding, supportsSubsetDecoding, |
| /*supportsIncomplete=*/false, supportsNewScanlineDecoding); |
| } |
| |
| // Initialize a codec with a data stream. |
| std::unique_ptr<SkStream> stream(GetResourceAsStream(path)); |
| if (!stream) { |
| return; |
| } |
| |
| std::unique_ptr<SkCodec> codec; |
| if (supportsIncomplete) { |
| size_t length = stream->getLength(); |
| codec = SkCodec::MakeFromData(SkData::MakeFromStream(stream.get(), 2 * length / 3)); |
| } else { |
| codec = SkCodec::MakeFromStream(std::move(stream)); |
| } |
| if (!codec) { |
| ERRORF(r, "Unable to decode '%s'", path); |
| return; |
| } |
| |
| const SkImageInfo info = codec->getInfo().makeColorType(kN32_SkColorType); |
| |
| // Run tests with this codec. |
| SkMD5::Digest codecDigest; |
| check_scanline_decode(r, codec.get(), &codecDigest, info, path, size, supportsScanlineDecoding, |
| supportsIncomplete, supportsNewScanlineDecoding); |
| |
| check_subset_decode(r, codec.get(), info, size, supportsSubsetDecoding, supportsIncomplete); |
| |
| check_android_codec(r, std::move(codec), codecDigest, info, path, size, |
| supportsScanlineDecoding, supportsSubsetDecoding, supportsIncomplete, |
| supportsNewScanlineDecoding); |
| |
| check_codec_image_generator(r, codecDigest, info, path, supportsIncomplete); |
| } |
| |
| DEF_TEST(Codec_wbmp, r) { |
| check(r, "images/mandrill.wbmp", SkISize::Make(512, 512), true, false, true); |
| } |
| |
| DEF_TEST(Codec_webp, r) { |
| check(r, "images/baby_tux.webp", SkISize::Make(386, 395), false, true, true); |
| check(r, "images/color_wheel.webp", SkISize::Make(128, 128), false, true, true); |
| check(r, "images/yellow_rose.webp", SkISize::Make(400, 301), false, true, true); |
| } |
| |
| DEF_TEST(Codec_bmp, r) { |
| check(r, "images/randPixels.bmp", SkISize::Make(8, 8), true, false, true); |
| check(r, "images/rle.bmp", SkISize::Make(320, 240), true, false, true); |
| } |
| |
| DEF_TEST(Codec_ico, r) { |
| // FIXME: We are not ready to test incomplete ICOs |
| // These two tests examine interestingly different behavior: |
| // Decodes an embedded BMP image |
| check(r, "images/color_wheel.ico", SkISize::Make(128, 128), true, false, false); |
| // Decodes an embedded PNG image |
| check(r, "images/google_chrome.ico", SkISize::Make(256, 256), false, false, false, true); |
| } |
| |
| DEF_TEST(Codec_gif, r) { |
| check(r, "images/box.gif", SkISize::Make(200, 55), false, false, true, true); |
| check(r, "images/color_wheel.gif", SkISize::Make(128, 128), false, false, true, true); |
| // randPixels.gif is too small to test incomplete |
| check(r, "images/randPixels.gif", SkISize::Make(8, 8), false, false, false, true); |
| } |
| |
| DEF_TEST(Codec_jpg, r) { |
| check(r, "images/CMYK.jpg", SkISize::Make(642, 516), true, false, true); |
| check(r, "images/color_wheel.jpg", SkISize::Make(128, 128), true, false, true); |
| // grayscale.jpg is too small to test incomplete |
| check(r, "images/grayscale.jpg", SkISize::Make(128, 128), true, false, false); |
| check(r, "images/mandrill_512_q075.jpg", SkISize::Make(512, 512), true, false, true); |
| // randPixels.jpg is too small to test incomplete |
| check(r, "images/randPixels.jpg", SkISize::Make(8, 8), true, false, false); |
| } |
| |
| DEF_TEST(Codec_png, r) { |
| check(r, "images/arrow.png", SkISize::Make(187, 312), false, false, true, true); |
| check(r, "images/baby_tux.png", SkISize::Make(240, 246), false, false, true, true); |
| check(r, "images/color_wheel.png", SkISize::Make(128, 128), false, false, true, true); |
| // half-transparent-white-pixel.png is too small to test incomplete |
| check(r, "images/half-transparent-white-pixel.png", SkISize::Make(1, 1), false, false, false, true); |
| check(r, "images/mandrill_128.png", SkISize::Make(128, 128), false, false, true, true); |
| // mandrill_16.png is too small (relative to embedded sRGB profile) to test incomplete |
| check(r, "images/mandrill_16.png", SkISize::Make(16, 16), false, false, false, true); |
| check(r, "images/mandrill_256.png", SkISize::Make(256, 256), false, false, true, true); |
| check(r, "images/mandrill_32.png", SkISize::Make(32, 32), false, false, true, true); |
| check(r, "images/mandrill_512.png", SkISize::Make(512, 512), false, false, true, true); |
| check(r, "images/mandrill_64.png", SkISize::Make(64, 64), false, false, true, true); |
| check(r, "images/plane.png", SkISize::Make(250, 126), false, false, true, true); |
| check(r, "images/plane_interlaced.png", SkISize::Make(250, 126), false, false, true, true); |
| check(r, "images/randPixels.png", SkISize::Make(8, 8), false, false, true, true); |
| check(r, "images/yellow_rose.png", SkISize::Make(400, 301), false, false, true, true); |
| } |
| |
| // Disable RAW tests for Win32. |
| #if defined(SK_CODEC_DECODES_RAW) && (!defined(_WIN32)) |
| DEF_TEST(Codec_raw, r) { |
| check(r, "images/sample_1mp.dng", SkISize::Make(600, 338), false, false, false); |
| check(r, "images/sample_1mp_rotated.dng", SkISize::Make(600, 338), false, false, false); |
| check(r, "images/dng_with_preview.dng", SkISize::Make(600, 338), true, false, false); |
| } |
| #endif |
| |
| static void test_invalid_stream(skiatest::Reporter* r, const void* stream, size_t len) { |
| // Neither of these calls should return a codec. Bots should catch us if we leaked anything. |
| REPORTER_ASSERT(r, !SkCodec::MakeFromStream( |
| std::make_unique<SkMemoryStream>(stream, len, false))); |
| REPORTER_ASSERT(r, !SkAndroidCodec::MakeFromStream( |
| std::make_unique<SkMemoryStream>(stream, len, false))); |
| } |
| |
| // Ensure that SkCodec::NewFromStream handles freeing the passed in SkStream, |
| // even on failure. Test some bad streams. |
| DEF_TEST(Codec_leaks, r) { |
| // No codec should claim this as their format, so this tests SkCodec::NewFromStream. |
| const char nonSupportedStream[] = "hello world"; |
| // The other strings should look like the beginning of a file type, so we'll call some |
| // internal version of NewFromStream, which must also delete the stream on failure. |
| const unsigned char emptyPng[] = { 0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a }; |
| const unsigned char emptyJpeg[] = { 0xFF, 0xD8, 0xFF }; |
| const char emptyWebp[] = "RIFF1234WEBPVP"; |
| const char emptyBmp[] = { 'B', 'M' }; |
| const char emptyIco[] = { '\x00', '\x00', '\x01', '\x00' }; |
| const char emptyGif[] = "GIFVER"; |
| |
| test_invalid_stream(r, nonSupportedStream, sizeof(nonSupportedStream)); |
| test_invalid_stream(r, emptyPng, sizeof(emptyPng)); |
| test_invalid_stream(r, emptyJpeg, sizeof(emptyJpeg)); |
| test_invalid_stream(r, emptyWebp, sizeof(emptyWebp)); |
| test_invalid_stream(r, emptyBmp, sizeof(emptyBmp)); |
| test_invalid_stream(r, emptyIco, sizeof(emptyIco)); |
| test_invalid_stream(r, emptyGif, sizeof(emptyGif)); |
| } |
| |
| DEF_TEST(Codec_null, r) { |
| // Attempting to create an SkCodec or an SkAndroidCodec with null should not |
| // crash. |
| REPORTER_ASSERT(r, !SkCodec::MakeFromStream(nullptr)); |
| REPORTER_ASSERT(r, !SkAndroidCodec::MakeFromStream(nullptr)); |
| } |
| |
| static void test_dimensions(skiatest::Reporter* r, const char path[]) { |
| // Create the codec from the resource file |
| std::unique_ptr<SkStream> stream(GetResourceAsStream(path)); |
| if (!stream) { |
| return; |
| } |
| std::unique_ptr<SkAndroidCodec> codec(SkAndroidCodec::MakeFromStream(std::move(stream))); |
| if (!codec) { |
| ERRORF(r, "Unable to create codec '%s'", path); |
| return; |
| } |
| |
| // Check that the decode is successful for a variety of scales |
| for (int sampleSize = 1; sampleSize < 32; sampleSize++) { |
| // Scale the output dimensions |
| SkISize scaledDims = codec->getSampledDimensions(sampleSize); |
| SkImageInfo scaledInfo = codec->getInfo() |
| .makeDimensions(scaledDims) |
| .makeColorType(kN32_SkColorType); |
| |
| // Set up for the decode |
| size_t rowBytes = scaledDims.width() * sizeof(SkPMColor); |
| size_t totalBytes = scaledInfo.computeByteSize(rowBytes); |
| AutoTMalloc<SkPMColor> pixels(totalBytes); |
| |
| SkAndroidCodec::AndroidOptions options; |
| options.fSampleSize = sampleSize; |
| SkCodec::Result result = |
| codec->getAndroidPixels(scaledInfo, pixels.get(), rowBytes, &options); |
| if (result != SkCodec::kSuccess) { |
| ERRORF(r, "Failed to decode %s with sample size %i; error: %s", path, sampleSize, |
| SkCodec::ResultToString(result)); |
| } |
| } |
| } |
| |
| // Ensure that onGetScaledDimensions returns valid image dimensions to use for decodes |
| DEF_TEST(Codec_Dimensions, r) { |
| // JPG |
| test_dimensions(r, "images/CMYK.jpg"); |
| test_dimensions(r, "images/color_wheel.jpg"); |
| test_dimensions(r, "images/grayscale.jpg"); |
| test_dimensions(r, "images/mandrill_512_q075.jpg"); |
| test_dimensions(r, "images/randPixels.jpg"); |
| |
| // Decoding small images with very large scaling factors is a potential |
| // source of bugs and crashes. We disable these tests in Gold because |
| // tiny images are not very useful to look at. |
| // Here we make sure that we do not crash or access illegal memory when |
| // performing scaled decodes on small images. |
| test_dimensions(r, "images/1x1.png"); |
| test_dimensions(r, "images/2x2.png"); |
| test_dimensions(r, "images/3x3.png"); |
| test_dimensions(r, "images/3x1.png"); |
| test_dimensions(r, "images/1x1.png"); |
| test_dimensions(r, "images/16x1.png"); |
| test_dimensions(r, "images/1x16.png"); |
| test_dimensions(r, "images/mandrill_16.png"); |
| |
| // RAW |
| // Disable RAW tests for Win32. |
| #if defined(SK_CODEC_DECODES_RAW) && (!defined(_WIN32)) |
| test_dimensions(r, "images/sample_1mp.dng"); |
| test_dimensions(r, "images/sample_1mp_rotated.dng"); |
| test_dimensions(r, "images/dng_with_preview.dng"); |
| #endif |
| } |
| |
| static void test_invalid(skiatest::Reporter* r, const char path[]) { |
| auto data = GetResourceAsData(path); |
| if (!data) { |
| ERRORF(r, "Failed to get resource %s", path); |
| return; |
| } |
| |
| REPORTER_ASSERT(r, !SkCodec::MakeFromData(data)); |
| } |
| |
| DEF_TEST(Codec_Empty, r) { |
| if (GetResourcePath().isEmpty()) { |
| return; |
| } |
| |
| // Test images that should not be able to create a codec |
| test_invalid(r, "empty_images/zero-dims.gif"); |
| test_invalid(r, "empty_images/zero-embedded.ico"); |
| test_invalid(r, "empty_images/zero-width.bmp"); |
| test_invalid(r, "empty_images/zero-height.bmp"); |
| test_invalid(r, "empty_images/zero-width.jpg"); |
| test_invalid(r, "empty_images/zero-height.jpg"); |
| test_invalid(r, "empty_images/zero-width.png"); |
| test_invalid(r, "empty_images/zero-height.png"); |
| test_invalid(r, "empty_images/zero-width.wbmp"); |
| test_invalid(r, "empty_images/zero-height.wbmp"); |
| // This image is an ico with an embedded mask-bmp. This is illegal. |
| test_invalid(r, "invalid_images/mask-bmp-ico.ico"); |
| // It is illegal for a webp frame to not be fully contained by the canvas. |
| test_invalid(r, "invalid_images/invalid-offset.webp"); |
| #if defined(SK_CODEC_DECODES_RAW) && (!defined(_WIN32)) |
| test_invalid(r, "empty_images/zero_height.tiff"); |
| #endif |
| test_invalid(r, "invalid_images/b37623797.ico"); |
| test_invalid(r, "invalid_images/osfuzz6295.webp"); |
| test_invalid(r, "invalid_images/osfuzz6288.bmp"); |
| test_invalid(r, "invalid_images/ossfuzz6347"); |
| } |
| |
| #ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED |
| |
| #ifndef SK_PNG_DISABLE_TESTS // reading chunks does not work properly with older versions. |
| // It does not appear that anyone in Google3 is reading chunks. |
| |
| static void codex_test_write_fn(png_structp png_ptr, png_bytep data, png_size_t len) { |
| SkWStream* sk_stream = (SkWStream*)png_get_io_ptr(png_ptr); |
| if (!sk_stream->write(data, len)) { |
| png_error(png_ptr, "sk_write_fn Error!"); |
| } |
| } |
| |
| DEF_TEST(Codec_pngChunkReader, r) { |
| // Create a bitmap for hashing. Use unpremul RGBA for libpng. |
| SkBitmap bm; |
| const int w = 1; |
| const int h = 1; |
| const SkImageInfo bmInfo = SkImageInfo::Make(w, h, kRGBA_8888_SkColorType, |
| kUnpremul_SkAlphaType); |
| bm.setInfo(bmInfo); |
| bm.allocPixels(); |
| bm.eraseColor(SK_ColorBLUE); |
| SkMD5::Digest goodDigest = md5(bm); |
| |
| // Write to a png file. |
| png_structp png = png_create_write_struct(PNG_LIBPNG_VER_STRING, nullptr, nullptr, nullptr); |
| REPORTER_ASSERT(r, png); |
| if (!png) { |
| return; |
| } |
| |
| png_infop info = png_create_info_struct(png); |
| REPORTER_ASSERT(r, info); |
| if (!info) { |
| png_destroy_write_struct(&png, nullptr); |
| return; |
| } |
| |
| if (setjmp(png_jmpbuf(png))) { |
| ERRORF(r, "failed writing png"); |
| png_destroy_write_struct(&png, &info); |
| return; |
| } |
| |
| SkDynamicMemoryWStream wStream; |
| png_set_write_fn(png, (void*) (&wStream), codex_test_write_fn, nullptr); |
| |
| png_set_IHDR(png, info, (png_uint_32)w, (png_uint_32)h, 8, |
| PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE, |
| PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT); |
| |
| // Create some chunks that match the Android framework's use. |
| static png_unknown_chunk gUnknowns[] = { |
| { "npOl", (png_byte*)"outline", sizeof("outline"), PNG_HAVE_IHDR }, |
| { "npLb", (png_byte*)"layoutBounds", sizeof("layoutBounds"), PNG_HAVE_IHDR }, |
| { "npTc", (png_byte*)"ninePatchData", sizeof("ninePatchData"), PNG_HAVE_IHDR }, |
| }; |
| |
| png_set_keep_unknown_chunks(png, PNG_HANDLE_CHUNK_ALWAYS, (png_byte*)"npOl\0npLb\0npTc\0", 3); |
| png_set_unknown_chunks(png, info, gUnknowns, std::size(gUnknowns)); |
| #if PNG_LIBPNG_VER < 10600 |
| /* Deal with unknown chunk location bug in 1.5.x and earlier */ |
| png_set_unknown_chunk_location(png, info, 0, PNG_HAVE_IHDR); |
| png_set_unknown_chunk_location(png, info, 1, PNG_HAVE_IHDR); |
| #endif |
| |
| png_write_info(png, info); |
| |
| for (int j = 0; j < h; j++) { |
| png_bytep row = (png_bytep)(bm.getAddr(0, j)); |
| png_write_rows(png, &row, 1); |
| } |
| png_write_end(png, info); |
| png_destroy_write_struct(&png, &info); |
| |
| class ChunkReader : public SkPngChunkReader { |
| public: |
| ChunkReader(skiatest::Reporter* r) |
| : fReporter(r) |
| { |
| this->reset(); |
| } |
| |
| bool readChunk(const char tag[], const void* data, size_t length) override { |
| for (size_t i = 0; i < std::size(gUnknowns); ++i) { |
| if (!strcmp(tag, (const char*) gUnknowns[i].name)) { |
| // Tag matches. This should have been the first time we see it. |
| REPORTER_ASSERT(fReporter, !fSeen[i]); |
| fSeen[i] = true; |
| |
| // Data and length should match |
| REPORTER_ASSERT(fReporter, length == gUnknowns[i].size); |
| REPORTER_ASSERT(fReporter, !strcmp((const char*) data, |
| (const char*) gUnknowns[i].data)); |
| return true; |
| } |
| } |
| ERRORF(fReporter, "Saw an unexpected unknown chunk."); |
| return true; |
| } |
| |
| bool allHaveBeenSeen() { |
| bool ret = true; |
| for (auto seen : fSeen) { |
| ret &= seen; |
| } |
| return ret; |
| } |
| |
| void reset() { |
| sk_bzero(fSeen, sizeof(fSeen)); |
| } |
| |
| private: |
| skiatest::Reporter* fReporter; // Unowned |
| bool fSeen[3]; |
| }; |
| |
| ChunkReader chunkReader(r); |
| |
| // Now read the file with SkCodec. |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromData(wStream.detachAsData(), &chunkReader)); |
| REPORTER_ASSERT(r, codec); |
| if (!codec) { |
| return; |
| } |
| |
| // Now compare to the original. |
| SkBitmap decodedBm; |
| decodedBm.setInfo(codec->getInfo()); |
| decodedBm.allocPixels(); |
| SkCodec::Result result = codec->getPixels(codec->getInfo(), decodedBm.getPixels(), |
| decodedBm.rowBytes()); |
| REPORTER_ASSERT(r, SkCodec::kSuccess == result); |
| |
| if (decodedBm.colorType() != bm.colorType()) { |
| SkBitmap tmp; |
| bool success = ToolUtils::copy_to(&tmp, bm.colorType(), decodedBm); |
| REPORTER_ASSERT(r, success); |
| if (!success) { |
| return; |
| } |
| |
| tmp.swap(decodedBm); |
| } |
| |
| compare_to_good_digest(r, goodDigest, decodedBm); |
| REPORTER_ASSERT(r, chunkReader.allHaveBeenSeen()); |
| |
| // Decoding again will read the chunks again. |
| chunkReader.reset(); |
| REPORTER_ASSERT(r, !chunkReader.allHaveBeenSeen()); |
| result = codec->getPixels(codec->getInfo(), decodedBm.getPixels(), decodedBm.rowBytes()); |
| REPORTER_ASSERT(r, SkCodec::kSuccess == result); |
| REPORTER_ASSERT(r, chunkReader.allHaveBeenSeen()); |
| } |
| #endif // SK_PNG_DISABLE_TESTS |
| #endif // PNG_READ_UNKNOWN_CHUNKS_SUPPORTED |
| |
| // Stream that can only peek up to a limit |
| class LimitedPeekingMemStream : public SkStream { |
| public: |
| LimitedPeekingMemStream(sk_sp<SkData> data, size_t limit) |
| : fStream(std::move(data)) |
| , fLimit(limit) {} |
| |
| size_t peek(void* buf, size_t bytes) const override { |
| return fStream.peek(buf, std::min(bytes, fLimit)); |
| } |
| size_t read(void* buf, size_t bytes) override { |
| return fStream.read(buf, bytes); |
| } |
| bool rewind() override { |
| return fStream.rewind(); |
| } |
| bool isAtEnd() const override { |
| return fStream.isAtEnd(); |
| } |
| private: |
| SkMemoryStream fStream; |
| const size_t fLimit; |
| }; |
| |
| // Disable RAW tests for Win32. |
| #if defined(SK_CODEC_DECODES_RAW) && (!defined(_WIN32)) |
| // Test that the RawCodec works also for not asset stream. This will test the code path using |
| // SkRawBufferedStream instead of SkRawAssetStream. |
| DEF_TEST(Codec_raw_notseekable, r) { |
| constexpr char path[] = "images/dng_with_preview.dng"; |
| sk_sp<SkData> data(GetResourceAsData(path)); |
| if (!data) { |
| SkDebugf("Missing resource '%s'\n", path); |
| return; |
| } |
| |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromStream( |
| std::make_unique<NotAssetMemStream>(std::move(data)))); |
| REPORTER_ASSERT(r, codec); |
| |
| test_info(r, codec.get(), codec->getInfo(), SkCodec::kSuccess, nullptr); |
| } |
| #endif |
| |
| // Test that even if webp_parse_header fails to peek enough, it will fall back to read() |
| // + rewind() and succeed. |
| DEF_TEST(Codec_webp_peek, r) { |
| constexpr char path[] = "images/baby_tux.webp"; |
| auto data = GetResourceAsData(path); |
| if (!data) { |
| SkDebugf("Missing resource '%s'\n", path); |
| return; |
| } |
| |
| // The limit is less than webp needs to peek or read. |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromStream( |
| std::make_unique<LimitedPeekingMemStream>(data, 25))); |
| REPORTER_ASSERT(r, codec); |
| |
| test_info(r, codec.get(), codec->getInfo(), SkCodec::kSuccess, nullptr); |
| |
| // Similarly, a stream which does not peek should still succeed. |
| codec = SkCodec::MakeFromStream(std::make_unique<LimitedPeekingMemStream>(data, 0)); |
| REPORTER_ASSERT(r, codec); |
| |
| test_info(r, codec.get(), codec->getInfo(), SkCodec::kSuccess, nullptr); |
| } |
| |
| // SkCodec's wbmp decoder was initially unnecessarily restrictive. |
| // It required the second byte to be zero. The wbmp specification allows |
| // a couple of bits to be 1 (so long as they do not overlap with 0x9F). |
| // Test that SkCodec now supports an image with these bits set. |
| DEF_TEST(Codec_wbmp_restrictive, r) { |
| const char* path = "images/mandrill.wbmp"; |
| std::unique_ptr<SkStream> stream(GetResourceAsStream(path)); |
| if (!stream) { |
| return; |
| } |
| |
| // Modify the stream to contain a second byte with some bits set. |
| auto data = SkCopyStreamToData(stream.get()); |
| uint8_t* writeableData = static_cast<uint8_t*>(data->writable_data()); |
| writeableData[1] = static_cast<uint8_t>(~0x9F); |
| |
| // SkCodec should support this. |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromData(data)); |
| REPORTER_ASSERT(r, codec); |
| if (!codec) { |
| return; |
| } |
| test_info(r, codec.get(), codec->getInfo(), SkCodec::kSuccess, nullptr); |
| } |
| |
| // wbmp images have a header that can be arbitrarily large, depending on the |
| // size of the image. We cap the size at 65535, meaning we only need to look at |
| // 8 bytes to determine whether we can read the image. This is important |
| // because SkCodec only passes a limited number of bytes to SkWbmpCodec to |
| // determine whether the image is a wbmp. |
| DEF_TEST(Codec_wbmp_max_size, r) { |
| const unsigned char maxSizeWbmp[] = { 0x00, 0x00, // Header |
| 0x83, 0xFF, 0x7F, // W: 65535 |
| 0x83, 0xFF, 0x7F }; // H: 65535 |
| std::unique_ptr<SkStream> stream(new SkMemoryStream(maxSizeWbmp, sizeof(maxSizeWbmp), false)); |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromStream(std::move(stream))); |
| |
| REPORTER_ASSERT(r, codec); |
| if (!codec) return; |
| |
| REPORTER_ASSERT(r, codec->getInfo().width() == 65535); |
| REPORTER_ASSERT(r, codec->getInfo().height() == 65535); |
| |
| // Now test an image which is too big. Any image with a larger header (i.e. |
| // has bigger width/height) is also too big. |
| const unsigned char tooBigWbmp[] = { 0x00, 0x00, // Header |
| 0x84, 0x80, 0x00, // W: 65536 |
| 0x84, 0x80, 0x00 }; // H: 65536 |
| stream = std::make_unique<SkMemoryStream>(tooBigWbmp, sizeof(tooBigWbmp), false); |
| codec = SkCodec::MakeFromStream(std::move(stream)); |
| |
| REPORTER_ASSERT(r, !codec); |
| } |
| |
| DEF_TEST(Codec_jpeg_rewind, r) { |
| const char* path = "images/mandrill_512_q075.jpg"; |
| sk_sp<SkData> data(GetResourceAsData(path)); |
| if (!data) { |
| return; |
| } |
| |
| data = SkData::MakeSubset(data.get(), 0, data->size() / 2); |
| std::unique_ptr<SkAndroidCodec> codec(SkAndroidCodec::MakeFromData(data)); |
| if (!codec) { |
| ERRORF(r, "Unable to create codec '%s'.", path); |
| return; |
| } |
| |
| const int width = codec->getInfo().width(); |
| const int height = codec->getInfo().height(); |
| size_t rowBytes = sizeof(SkPMColor) * width; |
| SkAutoMalloc pixelStorage(height * rowBytes); |
| |
| // Perform a sampled decode. |
| SkAndroidCodec::AndroidOptions opts; |
| opts.fSampleSize = 12; |
| auto sampledInfo = codec->getInfo().makeWH(width / 12, height / 12); |
| auto result = codec->getAndroidPixels(sampledInfo, pixelStorage.get(), rowBytes, &opts); |
| REPORTER_ASSERT(r, SkCodec::kIncompleteInput == result); |
| |
| // Rewind the codec and perform a full image decode. |
| result = codec->getPixels(codec->getInfo(), pixelStorage.get(), rowBytes); |
| REPORTER_ASSERT(r, SkCodec::kIncompleteInput == result); |
| |
| // Now perform a subset decode. |
| { |
| opts.fSampleSize = 1; |
| SkIRect subset = SkIRect::MakeWH(100, 100); |
| opts.fSubset = ⊂ |
| result = codec->getAndroidPixels(codec->getInfo().makeWH(100, 100), pixelStorage.get(), |
| rowBytes, &opts); |
| // Though we only have half the data, it is enough to decode this subset. |
| REPORTER_ASSERT(r, SkCodec::kSuccess == result); |
| } |
| |
| // Perform another full image decode. ASAN will detect if we look at the subset when it is |
| // out of scope. This would happen if we depend on the old state in the codec. |
| // This tests two layers of bugs: both SkJpegCodec::readRows and SkCodec::fillIncompleteImage |
| // used to look at the old subset. |
| opts.fSubset = nullptr; |
| result = codec->getAndroidPixels(codec->getInfo(), pixelStorage.get(), rowBytes, &opts); |
| REPORTER_ASSERT(r, SkCodec::kIncompleteInput == result); |
| } |
| |
| static void check_color_xform(skiatest::Reporter* r, const char* path) { |
| std::unique_ptr<SkAndroidCodec> codec(SkAndroidCodec::MakeFromStream(GetResourceAsStream(path))); |
| |
| SkAndroidCodec::AndroidOptions opts; |
| opts.fSampleSize = 3; |
| const int subsetWidth = codec->getInfo().width() / 2; |
| const int subsetHeight = codec->getInfo().height() / 2; |
| SkIRect subset = SkIRect::MakeWH(subsetWidth, subsetHeight); |
| opts.fSubset = ⊂ |
| |
| const int dstWidth = subsetWidth / opts.fSampleSize; |
| const int dstHeight = subsetHeight / opts.fSampleSize; |
| auto colorSpace = SkColorSpace::MakeRGB(SkNamedTransferFn::k2Dot2, SkNamedGamut::kAdobeRGB); |
| SkImageInfo dstInfo = codec->getInfo().makeWH(dstWidth, dstHeight) |
| .makeColorType(kN32_SkColorType) |
| .makeColorSpace(colorSpace); |
| |
| size_t rowBytes = dstInfo.minRowBytes(); |
| SkAutoMalloc pixelStorage(dstInfo.computeByteSize(rowBytes)); |
| SkCodec::Result result = codec->getAndroidPixels(dstInfo, pixelStorage.get(), rowBytes, &opts); |
| REPORTER_ASSERT(r, SkCodec::kSuccess == result); |
| } |
| |
| DEF_TEST(Codec_ColorXform, r) { |
| check_color_xform(r, "images/mandrill_512_q075.jpg"); |
| check_color_xform(r, "images/mandrill_512.png"); |
| } |
| |
| static bool color_type_match(SkColorType origColorType, SkColorType codecColorType) { |
| switch (origColorType) { |
| case kRGBA_8888_SkColorType: |
| case kBGRA_8888_SkColorType: |
| return kRGBA_8888_SkColorType == codecColorType || |
| kBGRA_8888_SkColorType == codecColorType; |
| default: |
| return origColorType == codecColorType; |
| } |
| } |
| |
| static bool alpha_type_match(SkAlphaType origAlphaType, SkAlphaType codecAlphaType) { |
| switch (origAlphaType) { |
| case kUnpremul_SkAlphaType: |
| case kPremul_SkAlphaType: |
| return kUnpremul_SkAlphaType == codecAlphaType || |
| kPremul_SkAlphaType == codecAlphaType; |
| default: |
| return origAlphaType == codecAlphaType; |
| } |
| } |
| |
| static void check_round_trip(skiatest::Reporter* r, SkCodec* origCodec, const SkImageInfo& info) { |
| SkBitmap bm1; |
| bm1.allocPixels(info); |
| SkCodec::Result result = origCodec->getPixels(info, bm1.getPixels(), bm1.rowBytes()); |
| REPORTER_ASSERT(r, SkCodec::kSuccess == result); |
| |
| // Encode the image to png. |
| auto data = SkEncodeBitmap(bm1, SkEncodedImageFormat::kPNG, 100); |
| |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromData(data)); |
| REPORTER_ASSERT(r, color_type_match(info.colorType(), codec->getInfo().colorType())); |
| REPORTER_ASSERT(r, alpha_type_match(info.alphaType(), codec->getInfo().alphaType())); |
| |
| SkBitmap bm2; |
| bm2.allocPixels(info); |
| result = codec->getPixels(info, bm2.getPixels(), bm2.rowBytes()); |
| REPORTER_ASSERT(r, SkCodec::kSuccess == result); |
| |
| REPORTER_ASSERT(r, md5(bm1) == md5(bm2)); |
| } |
| |
| DEF_TEST(Codec_PngRoundTrip, r) { |
| auto codec = SkCodec::MakeFromStream(GetResourceAsStream("images/mandrill_512_q075.jpg")); |
| |
| SkColorType colorTypesOpaque[] = { |
| kRGB_565_SkColorType, kRGBA_8888_SkColorType, kBGRA_8888_SkColorType |
| }; |
| for (SkColorType colorType : colorTypesOpaque) { |
| SkImageInfo newInfo = codec->getInfo().makeColorType(colorType); |
| check_round_trip(r, codec.get(), newInfo); |
| } |
| |
| codec = SkCodec::MakeFromStream(GetResourceAsStream("images/grayscale.jpg")); |
| check_round_trip(r, codec.get(), codec->getInfo()); |
| |
| codec = SkCodec::MakeFromStream(GetResourceAsStream("images/yellow_rose.png")); |
| |
| SkColorType colorTypesWithAlpha[] = { |
| kRGBA_8888_SkColorType, kBGRA_8888_SkColorType |
| }; |
| SkAlphaType alphaTypes[] = { |
| kUnpremul_SkAlphaType, kPremul_SkAlphaType |
| }; |
| for (SkColorType colorType : colorTypesWithAlpha) { |
| for (SkAlphaType alphaType : alphaTypes) { |
| // Set color space to nullptr because color correct premultiplies do not round trip. |
| SkImageInfo newInfo = codec->getInfo().makeColorType(colorType) |
| .makeAlphaType(alphaType) |
| .makeColorSpace(nullptr); |
| check_round_trip(r, codec.get(), newInfo); |
| } |
| } |
| |
| codec = SkCodec::MakeFromStream(GetResourceAsStream("images/index8.png")); |
| |
| for (SkAlphaType alphaType : alphaTypes) { |
| SkImageInfo newInfo = codec->getInfo().makeAlphaType(alphaType) |
| .makeColorSpace(nullptr); |
| check_round_trip(r, codec.get(), newInfo); |
| } |
| } |
| |
| static void test_conversion_possible(skiatest::Reporter* r, const char* path, |
| bool supportsScanlineDecoder, |
| bool supportsIncrementalDecoder) { |
| std::unique_ptr<SkStream> stream(GetResourceAsStream(path)); |
| if (!stream) { |
| return; |
| } |
| |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromStream(std::move(stream))); |
| if (!codec) { |
| ERRORF(r, "failed to create a codec for %s", path); |
| return; |
| } |
| |
| SkImageInfo infoF16 = codec->getInfo().makeColorType(kRGBA_F16_SkColorType); |
| |
| SkBitmap bm; |
| bm.allocPixels(infoF16); |
| SkCodec::Result result = codec->getPixels(infoF16, bm.getPixels(), bm.rowBytes()); |
| REPORTER_ASSERT(r, SkCodec::kSuccess == result); |
| |
| result = codec->startScanlineDecode(infoF16); |
| if (supportsScanlineDecoder) { |
| REPORTER_ASSERT(r, SkCodec::kSuccess == result); |
| } else { |
| REPORTER_ASSERT(r, SkCodec::kUnimplemented == result |
| || SkCodec::kSuccess == result); |
| } |
| |
| result = codec->startIncrementalDecode(infoF16, bm.getPixels(), bm.rowBytes()); |
| if (supportsIncrementalDecoder) { |
| REPORTER_ASSERT(r, SkCodec::kSuccess == result); |
| } else { |
| REPORTER_ASSERT(r, SkCodec::kUnimplemented == result |
| || SkCodec::kSuccess == result); |
| } |
| |
| infoF16 = infoF16.makeColorSpace(infoF16.colorSpace()->makeLinearGamma()); |
| result = codec->getPixels(infoF16, bm.getPixels(), bm.rowBytes()); |
| REPORTER_ASSERT(r, SkCodec::kSuccess == result); |
| result = codec->startScanlineDecode(infoF16); |
| if (supportsScanlineDecoder) { |
| REPORTER_ASSERT(r, SkCodec::kSuccess == result); |
| } else { |
| REPORTER_ASSERT(r, SkCodec::kUnimplemented == result); |
| } |
| |
| result = codec->startIncrementalDecode(infoF16, bm.getPixels(), bm.rowBytes()); |
| if (supportsIncrementalDecoder) { |
| REPORTER_ASSERT(r, SkCodec::kSuccess == result); |
| } else { |
| REPORTER_ASSERT(r, SkCodec::kUnimplemented == result); |
| } |
| } |
| |
| DEF_TEST(Codec_F16ConversionPossible, r) { |
| test_conversion_possible(r, "images/color_wheel.webp", false, false); |
| test_conversion_possible(r, "images/mandrill_512_q075.jpg", true, false); |
| test_conversion_possible(r, "images/yellow_rose.png", false, true); |
| } |
| |
| static void decode_frame(skiatest::Reporter* r, SkCodec* codec, size_t frame) { |
| SkBitmap bm; |
| auto info = codec->getInfo().makeColorType(kN32_SkColorType); |
| bm.allocPixels(info); |
| |
| SkCodec::Options opts; |
| opts.fFrameIndex = frame; |
| REPORTER_ASSERT(r, SkCodec::kSuccess == codec->getPixels(info, |
| bm.getPixels(), bm.rowBytes(), &opts)); |
| } |
| |
| // For an animated GIF, we should only read enough to decode frame 0 if the |
| // client never calls getFrameInfo and only decodes frame 0. |
| DEF_TEST(Codec_skipFullParse, r) { |
| auto path = "images/test640x479.gif"; |
| auto streamObj = GetResourceAsStream(path); |
| if (!streamObj) { |
| return; |
| } |
| SkStream* stream = streamObj.get(); |
| |
| // Note that we cheat and hold on to the stream pointer, but SkCodec will |
| // take ownership. We will not refer to the stream after the SkCodec |
| // deletes it. |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromStream(std::move(streamObj))); |
| if (!codec) { |
| ERRORF(r, "Failed to create codec for %s", path); |
| return; |
| } |
| |
| REPORTER_ASSERT(r, stream->hasPosition()); |
| const size_t sizePosition = stream->getPosition(); |
| REPORTER_ASSERT(r, stream->hasLength() && sizePosition < stream->getLength()); |
| |
| // This should read more of the stream, but not the whole stream. |
| decode_frame(r, codec.get(), 0); |
| const size_t positionAfterFirstFrame = stream->getPosition(); |
| REPORTER_ASSERT(r, positionAfterFirstFrame > sizePosition |
| && positionAfterFirstFrame < stream->getLength()); |
| |
| // There is more data in the stream. |
| auto frameInfo = codec->getFrameInfo(); |
| REPORTER_ASSERT(r, frameInfo.size() == 4); |
| REPORTER_ASSERT(r, stream->getPosition() > positionAfterFirstFrame); |
| } |
| |
| // Only rewinds up to a limit. |
| class LimitedRewindingStream : public SkStream { |
| public: |
| static std::unique_ptr<SkStream> Make(const char path[], size_t limit) { |
| auto stream = GetResourceAsStream(path); |
| if (!stream) { |
| return nullptr; |
| } |
| return std::unique_ptr<SkStream>(new LimitedRewindingStream(std::move(stream), limit)); |
| } |
| |
| size_t read(void* buffer, size_t size) override { |
| const size_t bytes = fStream->read(buffer, size); |
| fPosition += bytes; |
| return bytes; |
| } |
| |
| bool isAtEnd() const override { |
| return fStream->isAtEnd(); |
| } |
| |
| bool rewind() override { |
| if (fPosition <= fLimit && fStream->rewind()) { |
| fPosition = 0; |
| return true; |
| } |
| |
| return false; |
| } |
| |
| private: |
| std::unique_ptr<SkStream> fStream; |
| const size_t fLimit; |
| size_t fPosition; |
| |
| LimitedRewindingStream(std::unique_ptr<SkStream> stream, size_t limit) |
| : fStream(std::move(stream)) |
| , fLimit(limit) |
| , fPosition(0) |
| { |
| SkASSERT(fStream); |
| } |
| }; |
| |
| DEF_TEST(Codec_fallBack, r) { |
| // SkAndroidCodec needs to be able to fall back to scanline decoding |
| // if incremental decoding does not work. Make sure this does not |
| // require a rewind. |
| |
| // Formats that currently do not support incremental decoding |
| auto files = { |
| "images/CMYK.jpg", |
| "images/color_wheel.ico", |
| "images/mandrill.wbmp", |
| "images/randPixels.bmp", |
| }; |
| for (auto file : files) { |
| auto stream = LimitedRewindingStream::Make(file, SkCodec::MinBufferedBytesNeeded()); |
| if (!stream) { |
| SkDebugf("Missing resources (%s). Set --resourcePath.\n", file); |
| return; |
| } |
| |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromStream(std::move(stream))); |
| if (!codec) { |
| ERRORF(r, "Failed to create codec for %s,", file); |
| continue; |
| } |
| |
| SkImageInfo info = codec->getInfo().makeColorType(kN32_SkColorType); |
| SkBitmap bm; |
| bm.allocPixels(info); |
| |
| if (SkCodec::kUnimplemented != codec->startIncrementalDecode(info, bm.getPixels(), |
| bm.rowBytes())) { |
| ERRORF(r, "Is scanline decoding now implemented for %s?", file); |
| continue; |
| } |
| |
| // Scanline decoding should not require a rewind. |
| SkCodec::Result result = codec->startScanlineDecode(info); |
| if (SkCodec::kSuccess != result) { |
| ERRORF(r, "Scanline decoding failed for %s with %i", file, result); |
| } |
| } |
| } |
| |
| static void seek_and_decode(const char* file, std::unique_ptr<SkStream> stream, |
| skiatest::Reporter* r) { |
| if (!stream) { |
| SkDebugf("Missing resources (%s). Set --resourcePath.\n", file); |
| return; |
| } |
| |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromStream(std::move(stream))); |
| if (!codec) { |
| ERRORF(r, "Failed to create codec for %s,", file); |
| return; |
| } |
| |
| // Trigger reading through the stream, so that decoding the first frame will |
| // require a rewind. |
| (void) codec->getFrameCount(); |
| |
| SkImageInfo info = codec->getInfo().makeColorType(kN32_SkColorType); |
| SkBitmap bm; |
| bm.allocPixels(info); |
| auto result = codec->getPixels(bm.pixmap()); |
| if (result != SkCodec::kSuccess) { |
| ERRORF(r, "Failed to decode %s with error %s", file, SkCodec::ResultToString(result)); |
| } |
| } |
| |
| DEF_TEST(Wuffs_seek_and_decode, r) { |
| const char* file = "images/flightAnim.gif"; |
| auto stream = LimitedRewindingStream::Make(file, SkCodec::MinBufferedBytesNeeded()); |
| seek_and_decode(file, std::move(stream), r); |
| |
| #if defined(SK_ENABLE_ANDROID_UTILS) |
| // Test using FrontBufferedStream, as Android does |
| auto bufferedStream = android::skia::FrontBufferedStream::Make( |
| GetResourceAsStream(file), SkCodec::MinBufferedBytesNeeded()); |
| seek_and_decode(file, std::move(bufferedStream), r); |
| #endif |
| } |
| |
| // This test verifies that we fixed an assert statement that fired when reusing a png codec |
| // after scaling. |
| DEF_TEST(Codec_reusePng, r) { |
| std::unique_ptr<SkStream> stream(GetResourceAsStream("images/plane.png")); |
| if (!stream) { |
| return; |
| } |
| |
| std::unique_ptr<SkAndroidCodec> codec(SkAndroidCodec::MakeFromStream(std::move(stream))); |
| if (!codec) { |
| ERRORF(r, "Failed to create codec\n"); |
| return; |
| } |
| |
| SkAndroidCodec::AndroidOptions opts; |
| opts.fSampleSize = 5; |
| auto size = codec->getSampledDimensions(opts.fSampleSize); |
| auto info = codec->getInfo().makeDimensions(size).makeColorType(kN32_SkColorType); |
| SkBitmap bm; |
| bm.allocPixels(info); |
| auto result = codec->getAndroidPixels(info, bm.getPixels(), bm.rowBytes(), &opts); |
| REPORTER_ASSERT(r, result == SkCodec::kSuccess); |
| |
| info = codec->getInfo().makeColorType(kN32_SkColorType); |
| bm.allocPixels(info); |
| opts.fSampleSize = 1; |
| result = codec->getAndroidPixels(info, bm.getPixels(), bm.rowBytes(), &opts); |
| REPORTER_ASSERT(r, result == SkCodec::kSuccess); |
| } |
| |
| DEF_TEST(Codec_rowsDecoded, r) { |
| auto file = "images/plane_interlaced.png"; |
| std::unique_ptr<SkStream> stream(GetResourceAsStream(file)); |
| if (!stream) { |
| return; |
| } |
| |
| // This is enough to read the header etc, but no rows. |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromData(SkData::MakeFromStream(stream.get(), 99))); |
| if (!codec) { |
| ERRORF(r, "Failed to create codec\n"); |
| return; |
| } |
| |
| auto info = codec->getInfo().makeColorType(kN32_SkColorType); |
| SkBitmap bm; |
| bm.allocPixels(info); |
| auto result = codec->startIncrementalDecode(info, bm.getPixels(), bm.rowBytes()); |
| REPORTER_ASSERT(r, result == SkCodec::kSuccess); |
| |
| // This is an arbitrary value. The important fact is that it is not zero, and rowsDecoded |
| // should get set to zero by incrementalDecode. |
| int rowsDecoded = 77; |
| result = codec->incrementalDecode(&rowsDecoded); |
| REPORTER_ASSERT(r, result == SkCodec::kIncompleteInput); |
| REPORTER_ASSERT(r, rowsDecoded == 0); |
| } |
| |
| static void test_invalid_images(skiatest::Reporter* r, const char* path, |
| SkCodec::Result expectedResult) { |
| auto stream = GetResourceAsStream(path); |
| if (!stream) { |
| return; |
| } |
| |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromStream(std::move(stream))); |
| REPORTER_ASSERT(r, codec); |
| |
| test_info(r, codec.get(), codec->getInfo().makeColorType(kN32_SkColorType), expectedResult, |
| nullptr); |
| } |
| |
| DEF_TEST(Codec_InvalidImages, r) { |
| test_invalid_images(r, "invalid_images/b33251605.bmp", SkCodec::kIncompleteInput); |
| test_invalid_images(r, "invalid_images/bad_palette.png", SkCodec::kInvalidInput); |
| test_invalid_images(r, "invalid_images/many-progressive-scans.jpg", SkCodec::kInvalidInput); |
| |
| // An earlier revision of this test case passed kErrorInInput (instead of |
| // kSuccess) as the third argument (expectedResult). However, after |
| // https://skia-review.googlesource.com/c/skia/+/414417 `SkWuffsCodec: |
| // ignore too much pixel data` combined with |
| // https://github.com/google/wuffs/commit/e44920d3 `Let gif "ignore too |
| // much" quirk skip lzw errors`, the codec silently accepts skbug5887.gif |
| // (without the ASAN buffer-overflow violation that lead to that test case |
| // in the first place), even though it's technically an invalid GIF. |
| // |
| // Note that, in practice, real world GIF decoders already diverge (in |
| // different ways) from the GIF specification. For compatibility, (ad hoc) |
| // implementation often trumps specification. |
| // https://github.com/google/wuffs/blob/e44920d3/test/data/artificial-gif/frame-out-of-bounds.gif.make-artificial.txt#L30-L31 |
| test_invalid_images(r, "invalid_images/skbug5887.gif", SkCodec::kSuccess); |
| } |
| |
| static void test_invalid_header(skiatest::Reporter* r, const char* path) { |
| auto data = GetResourceAsData(path); |
| if (!data) { |
| return; |
| } |
| std::unique_ptr<SkStreamAsset> stream(new SkMemoryStream(std::move(data))); |
| if (!stream) { |
| return; |
| } |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromStream(std::move(stream))); |
| REPORTER_ASSERT(r, !codec); |
| } |
| |
| DEF_TEST(Codec_InvalidHeader, r) { |
| test_invalid_header(r, "invalid_images/int_overflow.ico"); |
| |
| // These files report values that have caused problems with SkFILEStreams. |
| // They are invalid, and should not create SkCodecs. |
| test_invalid_header(r, "invalid_images/b33651913.bmp"); |
| test_invalid_header(r, "invalid_images/b34778578.bmp"); |
| } |
| |
| /* |
| For the Codec_InvalidAnimated test, immediately below, |
| resources/invalid_images/skbug6046.gif is: |
| |
| 00000000: 4749 4638 3961 2000 0000 0000 002c ff00 GIF89a ......,.. |
| 00000010: 7400 0600 0000 4001 0021 f904 0a00 0000 t.....@..!...... |
| 00000020: 002c ff00 0000 ff00 7400 0606 0606 0601 .,......t....... |
| 00000030: 0021 f904 0000 0000 002c ff00 0000 ffcc .!.......,...... |
| 00000040: 1b36 5266 deba 543d .6Rf..T= |
| |
| It nominally contains 3 frames, but only the first one is valid. It came from a |
| fuzzer doing random mutations and copies. The breakdown: |
| |
| @000 6 bytes magic "GIF89a" |
| @006 7 bytes Logical Screen Descriptor: 0x20 0x00 ... 0x00 |
| - width = 32 |
| - height = 0 |
| - flags = 0x00 |
| - background color index, pixel aspect ratio bytes ignored |
| @00D 10 bytes Image Descriptor header: 0x2C 0xFF ... 0x40 |
| - origin_x = 255 |
| - origin_y = 116 |
| - width = 6 |
| - height = 0 |
| - flags = 0x40, interlaced |
| @017 2 bytes Image Descriptor body (pixel data): 0x01 0x00 |
| - lit_width = 1 |
| - 0x00 byte means "end of data" for this frame |
| @019 8 bytes Graphic Control Extension: 0x21 0xF9 ... 0x00 |
| - valid, but irrelevant here. |
| @021 10 bytes Image Descriptor header: 0x2C 0xFF ... 0x06 |
| - origin_x = 255 |
| - origin_y = 0 |
| - width = 255 |
| - height = 116 |
| - flags = 0x06, INVALID, 0x80 BIT ZERO IMPLIES 0x07 BITS SHOULD BE ZERO |
| @02B 14 bytes Image Descriptor body (pixel data): 0x06 0x06 ... 0x00 |
| - lit_width = 6 |
| - 0x06 precedes a 6 byte block of data |
| - 0x04 precedes a 4 byte block of data |
| - 0x00 byte means "end of data" for this frame |
| @039 10 bytes Image Descriptor header: 0x2C 0xFF ... 0x06 |
| - origin_x = 255 |
| - origin_y = 0 |
| - width = 52479 |
| - height = 13851 |
| - flags = 0x52, INVALID, 0x80 BIT ZERO IMPLIES 0x07 BITS SHOULD BE ZERO |
| @043 5 bytes Image Descriptor body (pixel data): 0x66 0xDE ... unexpected-EOF |
| - lit_width = 102, INVALID, GREATER THAN 8 |
| - 0xDE precedes a 222 byte block of data, INVALIDLY TRUNCATED |
| |
| On Image Descriptor flags INVALIDITY, |
| https://www.w3.org/Graphics/GIF/spec-gif89a.txt section 20.c says that "Size of |
| Local Color Table [the low 3 bits]... should be 0 if there is no Local Color |
| Table specified [the high bit]." |
| |
| On LZW literal width (also known as Minimum Code Size) INVALIDITY, |
| https://www.w3.org/Graphics/GIF/spec-gif89a.txt Appendix F says that "Normally |
| this will be the same as the number of [palette index] bits. Because of some |
| algorithmic constraints however, black & white images which have one color bit |
| must be indicated as having a code size of 2." In practice, some GIF decoders, |
| including both the old third_party/gif code and the Wuffs GIF decoder, don't |
| enforce this "at least 2" constraint. Nonetheless, any width greater than 8 is |
| invalid, as there are only 8 bits in a byte. |
| */ |
| |
| DEF_TEST(Codec_InvalidAnimated, r) { |
| // ASAN will complain if there is an issue. |
| auto path = "invalid_images/skbug6046.gif"; |
| auto stream = GetResourceAsStream(path); |
| if (!stream) { |
| return; |
| } |
| |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromStream(std::move(stream))); |
| REPORTER_ASSERT(r, codec); |
| if (!codec) { |
| return; |
| } |
| |
| const auto info = codec->getInfo().makeColorType(kN32_SkColorType); |
| SkBitmap bm; |
| bm.allocPixels(info); |
| |
| auto frameInfos = codec->getFrameInfo(); |
| SkCodec::Options opts; |
| for (int i = 0; static_cast<size_t>(i) < frameInfos.size(); i++) { |
| opts.fFrameIndex = i; |
| const auto reqFrame = frameInfos[i].fRequiredFrame; |
| opts.fPriorFrame = reqFrame == i - 1 ? reqFrame : SkCodec::kNoFrame; |
| auto result = codec->startIncrementalDecode(info, bm.getPixels(), bm.rowBytes(), &opts); |
| |
| if (result != SkCodec::kSuccess) { |
| ERRORF(r, "Failed to start decoding frame %i (out of %zu) with error %i\n", i, |
| frameInfos.size(), result); |
| continue; |
| } |
| |
| codec->incrementalDecode(); |
| } |
| } |
| |
| static void encode_format(SkDynamicMemoryWStream* stream, const SkPixmap& pixmap, |
| SkEncodedImageFormat format) { |
| switch (format) { |
| case SkEncodedImageFormat::kPNG: |
| SkPngEncoder::Encode(stream, pixmap, SkPngEncoder::Options()); |
| break; |
| case SkEncodedImageFormat::kJPEG: |
| SkJpegEncoder::Encode(stream, pixmap, SkJpegEncoder::Options()); |
| break; |
| case SkEncodedImageFormat::kWEBP: |
| SkWebpEncoder::Encode(stream, pixmap, SkWebpEncoder::Options()); |
| break; |
| default: |
| SkASSERT(false); |
| break; |
| } |
| } |
| |
| static void test_encode_icc(skiatest::Reporter* r, SkEncodedImageFormat format) { |
| // Test with sRGB color space. |
| SkBitmap srgbBitmap; |
| SkImageInfo srgbInfo = SkImageInfo::MakeS32(1, 1, kOpaque_SkAlphaType); |
| srgbBitmap.allocPixels(srgbInfo); |
| *srgbBitmap.getAddr32(0, 0) = 0; |
| SkPixmap pixmap; |
| srgbBitmap.peekPixels(&pixmap); |
| SkDynamicMemoryWStream srgbBuf; |
| encode_format(&srgbBuf, pixmap, format); |
| sk_sp<SkData> srgbData = srgbBuf.detachAsData(); |
| std::unique_ptr<SkCodec> srgbCodec(SkCodec::MakeFromData(srgbData)); |
| REPORTER_ASSERT(r, srgbCodec->getInfo().colorSpace() == sk_srgb_singleton()); |
| |
| // Test with P3 color space. |
| SkDynamicMemoryWStream p3Buf; |
| sk_sp<SkColorSpace> p3 = SkColorSpace::MakeRGB(SkNamedTransferFn::kSRGB, SkNamedGamut::kDisplayP3); |
| pixmap.setColorSpace(p3); |
| encode_format(&p3Buf, pixmap, format); |
| sk_sp<SkData> p3Data = p3Buf.detachAsData(); |
| std::unique_ptr<SkCodec> p3Codec(SkCodec::MakeFromData(p3Data)); |
| REPORTER_ASSERT(r, p3Codec->getInfo().colorSpace()->gammaCloseToSRGB()); |
| skcms_Matrix3x3 mat0, mat1; |
| bool success = p3->toXYZD50(&mat0); |
| REPORTER_ASSERT(r, success); |
| success = p3Codec->getInfo().colorSpace()->toXYZD50(&mat1); |
| REPORTER_ASSERT(r, success); |
| |
| for (int i = 0; i < 3; i++) { |
| for (int j = 0; j < 3; j++) { |
| REPORTER_ASSERT(r, color_space_almost_equal(mat0.vals[i][j], mat1.vals[i][j])); |
| } |
| } |
| } |
| |
| DEF_TEST(Codec_EncodeICC, r) { |
| test_encode_icc(r, SkEncodedImageFormat::kPNG); |
| test_encode_icc(r, SkEncodedImageFormat::kJPEG); |
| test_encode_icc(r, SkEncodedImageFormat::kWEBP); |
| } |
| |
| DEF_TEST(Codec_webp_rowsDecoded, r) { |
| const char* path = "images/baby_tux.webp"; |
| sk_sp<SkData> data(GetResourceAsData(path)); |
| if (!data) { |
| return; |
| } |
| |
| // Truncate this file so that the header is available but no rows can be |
| // decoded. This should create a codec but fail to decode. |
| size_t truncatedSize = 5000; |
| sk_sp<SkData> subset = SkData::MakeSubset(data.get(), 0, truncatedSize); |
| std::unique_ptr<SkCodec> codec = SkCodec::MakeFromData(std::move(subset)); |
| if (!codec) { |
| ERRORF(r, "Failed to create a codec for %s truncated to only %zu bytes", |
| path, truncatedSize); |
| return; |
| } |
| |
| test_info(r, codec.get(), codec->getInfo(), SkCodec::kInvalidInput, nullptr); |
| } |
| |
| /* |
| For the Codec_ossfuzz6274 test, immediately below, |
| resources/invalid_images/ossfuzz6274.gif is: |
| |
| 00000000: 4749 4638 3961 2000 2000 f120 2020 2020 GIF89a . .. |
| 00000010: 2020 2020 2020 2020 2021 f903 ff20 2020 !... |
| 00000020: 002c 0000 0000 2000 2000 2000 00 .,.... . . .. |
| |
| @000 6 bytes magic "GIF89a" |
| @006 7 bytes Logical Screen Descriptor: 0x20 0x00 ... 0x00 |
| - width = 32 |
| - height = 32 |
| - flags = 0xF1, global color table, 4 RGB entries |
| - background color index, pixel aspect ratio bytes ignored |
| @00D 12 bytes Color Table: 0x20 0x20 ... 0x20 |
| @019 20 bytes Graphic Control Extension: 0x21 0xF9 ... unexpected-EOF |
| - 0x03 precedes a 3 byte block of data, INVALID, MUST BE 4 |
| - 0x20 precedes a 32 byte block of data, INVALIDly truncated |
| |
| https://www.w3.org/Graphics/GIF/spec-gif89a.txt section 23.c says that the |
| block size (for an 0x21 0xF9 Graphic Control Extension) must be "the fixed |
| value 4". |
| */ |
| |
| DEF_TEST(Codec_ossfuzz6274, r) { |
| if (GetResourcePath().isEmpty()) { |
| return; |
| } |
| |
| const char* file = "invalid_images/ossfuzz6274.gif"; |
| auto image = GetResourceAsImage(file); |
| |
| #ifdef SK_HAS_WUFFS_LIBRARY |
| // We are transitioning from an old GIF implementation to a new (Wuffs) GIF |
| // implementation. |
| // |
| // This test (without SK_HAS_WUFFS_LIBRARY) is overly specific to the old |
| // implementation. In the new implementation, the MakeFromStream factory |
| // method returns a nullptr SkImage*, instead of returning a non-null but |
| // otherwise all-transparent SkImage*. |
| // |
| // Either way, the end-to-end result is the same - the source input is |
| // rejected as an invalid GIF image - but the two implementations differ in |
| // how that's represented. |
| // |
| // Once the transition is complete, we can remove the #ifdef and delete the |
| // rest of the test function. |
| // |
| // See Codec_GifTruncated3 for the equivalent of the rest of the test |
| // function, on different (but still truncated) source data. |
| if (image) { |
| ERRORF(r, "Invalid data gave non-nullptr image"); |
| } |
| return; |
| #else |
| if (!image) { |
| ERRORF(r, "Missing %s", file); |
| return; |
| } |
| |
| REPORTER_ASSERT(r, image->width() == 32); |
| REPORTER_ASSERT(r, image->height() == 32); |
| |
| SkBitmap bm; |
| if (!bm.tryAllocPixels(SkImageInfo::MakeN32Premul(32, 32))) { |
| ERRORF(r, "Failed to allocate pixels"); |
| return; |
| } |
| |
| bm.eraseColor(SK_ColorTRANSPARENT); |
| |
| SkCanvas canvas(bm); |
| canvas.drawImage(image, 0, 0); |
| |
| for (int i = 0; i < image->width(); ++i) |
| for (int j = 0; j < image->height(); ++j) { |
| SkColor actual = SkUnPreMultiply::PMColorToColor(*bm.getAddr32(i, j)); |
| if (actual != SK_ColorTRANSPARENT) { |
| ERRORF(r, "did not initialize pixels! %i, %i is %x", i, j, actual); |
| } |
| } |
| #endif |
| } |
| |
| DEF_TEST(Codec_78329453, r) { |
| if (GetResourcePath().isEmpty()) { |
| return; |
| } |
| |
| const char* file = "images/b78329453.jpeg"; |
| auto data = GetResourceAsData(file); |
| if (!data) { |
| ERRORF(r, "Missing %s", file); |
| return; |
| } |
| |
| auto codec = SkAndroidCodec::MakeFromCodec(SkCodec::MakeFromData(data)); |
| if (!codec) { |
| ERRORF(r, "failed to create codec from %s", file); |
| return; |
| } |
| |
| // A bug in jpeg_skip_scanlines resulted in an infinite loop for this specific |
| // sample size on this image. Other sample sizes could have had the same result, |
| // but the ones tested by DM happen to not. |
| constexpr int kSampleSize = 19; |
| const auto size = codec->getSampledDimensions(kSampleSize); |
| auto info = codec->getInfo().makeDimensions(size); |
| SkBitmap bm; |
| bm.allocPixels(info); |
| bm.eraseColor(SK_ColorTRANSPARENT); |
| |
| SkAndroidCodec::AndroidOptions options; |
| options.fSampleSize = kSampleSize; |
| auto result = codec->getAndroidPixels(info, bm.getPixels(), bm.rowBytes(), &options); |
| if (result != SkCodec::kSuccess) { |
| ERRORF(r, "failed to decode with error %s", SkCodec::ResultToString(result)); |
| } |
| } |
| |
| DEF_TEST(Codec_A8, r) { |
| if (GetResourcePath().isEmpty()) { |
| return; |
| } |
| |
| const char* file = "images/mandrill_cmyk.jpg"; |
| auto data = GetResourceAsData(file); |
| if (!data) { |
| ERRORF(r, "missing %s", file); |
| return; |
| } |
| |
| auto codec = SkCodec::MakeFromData(std::move(data)); |
| auto info = codec->getInfo().makeColorType(kAlpha_8_SkColorType); |
| SkBitmap bm; |
| bm.allocPixels(info); |
| REPORTER_ASSERT(r, codec->getPixels(bm.pixmap()) == SkCodec::kInvalidConversion); |
| } |
| |
| DEF_TEST(Codec_crbug807324, r) { |
| if (GetResourcePath().isEmpty()) { |
| return; |
| } |
| |
| const char* file = "images/crbug807324.png"; |
| auto image = GetResourceAsImage(file); |
| if (!image) { |
| ERRORF(r, "Missing %s", file); |
| return; |
| } |
| |
| const int kWidth = image->width(); |
| const int kHeight = image->height(); |
| |
| SkBitmap bm; |
| if (!bm.tryAllocPixels(SkImageInfo::MakeN32Premul(kWidth, kHeight))) { |
| ERRORF(r, "Could not allocate pixels (%i x %i)", kWidth, kHeight); |
| return; |
| } |
| |
| bm.eraseColor(SK_ColorTRANSPARENT); |
| |
| SkCanvas canvas(bm); |
| canvas.drawImage(image, 0, 0); |
| |
| for (int i = 0; i < kWidth; ++i) |
| for (int j = 0; j < kHeight; ++j) { |
| if (*bm.getAddr32(i, j) == SK_ColorTRANSPARENT) { |
| ERRORF(r, "image should not be transparent! %i, %i is 0", i, j); |
| return; |
| } |
| } |
| } |
| |
| DEF_TEST(Codec_F16_noColorSpace, r) { |
| const char* path = "images/color_wheel.png"; |
| auto data = GetResourceAsData(path); |
| if (!data) { |
| return; |
| } |
| |
| auto codec = SkCodec::MakeFromData(std::move(data)); |
| SkImageInfo info = codec->getInfo().makeColorType(kRGBA_F16_SkColorType) |
| .makeColorSpace(nullptr); |
| test_info(r, codec.get(), info, SkCodec::kSuccess, nullptr); |
| } |
| |
| // These test images have ICC profiles that do not map to an SkColorSpace. |
| // Verify that decoding them with a null destination space does not perform |
| // color space transformations. |
| DEF_TEST(Codec_noConversion, r) { |
| const struct Rec { |
| const char* name; |
| SkColor color; |
| } recs[] = { |
| { "images/cmyk_yellow_224_224_32.jpg", 0xFFD8FC04 }, |
| { "images/wide_gamut_yellow_224_224_64.jpeg",0xFFE0E040 }, |
| }; |
| |
| for (const auto& rec : recs) { |
| auto data = GetResourceAsData(rec.name); |
| if (!data) { |
| continue; |
| } |
| |
| auto codec = SkCodec::MakeFromData(std::move(data)); |
| if (!codec) { |
| ERRORF(r, "Failed to create a codec from %s", rec.name); |
| continue; |
| } |
| |
| const auto* profile = codec->getICCProfile(); |
| if (!profile) { |
| ERRORF(r, "Expected %s to have a profile", rec.name); |
| continue; |
| } |
| |
| auto cs = SkColorSpace::Make(*profile); |
| REPORTER_ASSERT(r, !cs.get()); |
| |
| SkImageInfo info = codec->getInfo().makeColorSpace(nullptr); |
| SkBitmap bm; |
| bm.allocPixels(info); |
| if (codec->getPixels(info, bm.getPixels(), bm.rowBytes()) != SkCodec::kSuccess) { |
| ERRORF(r, "Failed to decode %s", rec.name); |
| continue; |
| } |
| REPORTER_ASSERT(r, bm.getColor(0, 0) == rec.color); |
| } |
| } |
| |
| DEF_TEST(Codec_kBGR_101010x_XR_SkColorType_supported, r) { |
| SkBitmap srcBm; |
| SkImageInfo srcInfo = SkImageInfo() |
| .makeWH(100, 100) |
| .makeColorSpace(SkColorSpace::MakeSRGB()) |
| .makeColorType(kBGRA_8888_SkColorType) |
| .makeAlphaType(kOpaque_SkAlphaType); |
| SkImageInfo dstInfo = srcInfo.makeColorType(kBGR_101010x_XR_SkColorType); |
| srcBm.allocPixels(srcInfo); |
| auto data = SkEncodeBitmap(srcBm, SkEncodedImageFormat::kPNG, 100); |
| std::unique_ptr<SkCodec> codec(SkCodec::MakeFromData(data)); |
| SkBitmap dstBm; |
| dstBm.allocPixels(dstInfo); |
| bool success = codec->getPixels(dstInfo, dstBm.getPixels(), dstBm.rowBytes()); |
| REPORTER_ASSERT(r, SkCodec::kSuccess == success); |
| } |