go-libwebp, branch HEAD

README: update for libwebp 1.6.0 and the ccgo v4 toolchain

2026-09-20T18:31:26Z

commit 27428b3e2190e966d85e36774e499a6648394a10 parent c39ff56bebedaa274ffee3e7237a470701a77a91 Author: Jack Mordaunt Date: Sun, 20 Sep 2026 15:31:26 -0300 README: update for libwebp 1.6.0 and the ccgo v4 toolchain The toolchain section still described the v3 pipeline and its osxcross requirement, which no longer exists.

webp: cover lossy decode in the backend tests

2026-09-20T18:31:26Z

commit c39ff56bebedaa274ffee3e7237a470701a77a91 parent 2b3a104db86fd2d93cbf1e09d0ea819d479398e2 Author: Jack Mordaunt Date: Sun, 20 Sep 2026 15:31:26 -0300 webp: cover lossy decode in the backend tests Every existing test went through VP8L: the golden is lossless and the fuzz targets only decode when lossless is set. Nothing decoded a lossy image through a pure-Go backend, so a transpiled build whose VP8 bit reader aborted on the first call passed the whole suite.

lib/transpiled: regenerate against libwebp 1.6.0 with ccgo v4

2026-09-20T18:07:42Z

commit 2b3a104db86fd2d93cbf1e09d0ea819d479398e2 parent 381d9ee045117668669b5af569e3414eeb07d87e Author: Jack Mordaunt Date: Sun, 20 Sep 2026 15:07:42 -0300 lib/transpiled: regenerate against libwebp 1.6.0 with ccgo v4 All six targets, including both darwin ones, which previously needed osxcross and an Apple SDK. The output agrees byte-for-byte with the wasm backend again, lossless and lossy, so backend_transpiled_test.go goes back to asserting equality with the golden rather than merely checking bitstream compatibility across a version skew. capi_linux_amd64.go is dropped. It was a ccgo v3 symbol table that nothing referenced, and v4 does not emit one.

lib/wasm: rebuild the embedded module against libwebp 1.6.0

2026-09-20T18:07:42Z

commit 381d9ee045117668669b5af569e3414eeb07d87e parent d21fe910e3488d0208c11234b687ef6a04bfcd23 Author: Jack Mordaunt Date: Sun, 20 Sep 2026 15:07:42 -0300 lib/wasm: rebuild the embedded module against libwebp 1.6.0 The golden moves with it: 1.6.0 encodes the test image to 94910 bytes where 1.2.2 produced 94412, so the two have to change together or the golden test fails in between. Compression is unaffected — across the 14-image bench corpus the two versions differ by +0.0% total — the bytes differ because the lossless encoder's internals changed. The rebuild is reproducible: rebuilding from a clean v1.6.0 checkout yields a byte-identical module.

tools: port transpile.sh to ccgo v4

2026-09-20T18:07:29Z

commit d21fe910e3488d0208c11234b687ef6a04bfcd23 parent 8b827e0b7a69b5d251c68104c24c5b731256819e Author: Jack Mordaunt Date: Sun, 20 Sep 2026 15:07:29 -0300 tools: port transpile.sh to ccgo v4 ccgo v3 could not do this job any more: it does not build on Go 1.27, and against libwebp 1.6.0 it failed to resolve objects at all, either reporting "no objects to link" from the archive or panicking in ccgo.go:1281:find on explicit object paths. v4 is a direct compiler, so the autotools configure, the compile database and the static archive all go away; it takes the source files. It also supplies target predefines through --goos/--goarch, but not target libc headers, so each cross target still needs a header source: linux/amd64 the host linux/arm64 aarch64-linux-gnu-gcc darwin/* zig's bundled any-macos-any headers windows/* x86_64-w64-mingw32-gcc zig is what removes the osxcross requirement, and with it the need for an Apple SDK that cannot be redistributed. It does not help for linux: ccgo cannot parse zig's generic-glibc bits/types.h. Two patches are carried. libwebp declares GetCoeffs as a volatile function pointer and v4 cannot emit a call through one; threading is disabled here so dropping volatile is safe, and it is applied in place with a restore trap because ccgo resolves modernc.org/libc through the module it runs from. sharpyuv_stub.c replaces the sharpyuv library, whose sharpyuv_gamma.c is the only caller of expf/logf in libwebp — modernc.org/libc provides Xexpf and Xlogf for linux only, so transpiling it fails to link on darwin and windows. Nothing reaches sharpyuv unless WebPConfig.use_sharp_yuv is set, which this package never does.

tools: support libwebp 1.6.0 in the build scripts

2026-09-20T18:07:29Z

commit 8b827e0b7a69b5d251c68104c24c5b731256819e parent 313c337a23b4ada012109aef21e6cb2eb73e8332 Author: Jack Mordaunt Date: Sun, 20 Sep 2026 15:07:29 -0300 tools: support libwebp 1.6.0 in the build scripts sharpyuv became a separate top-level library in 1.3 and the encoder links against it, so the source globs missed it and every link failed on SharpYuvInit. The native build also gives the new AVX2 kernels -mavx2 on their own translation unit, as it already did for SSE4.1. Separately, build-wasm.sh wrote straight into lib/wasm/webp/libwebp.wasm, so running the zig script silently replaced the shipped SIMD module with a scalar one. Both scripts now write comparison artifacts into bench/lib, and installing the shipped module is explicit via INSTALL=1.

c-lib: update libwebp to 1.6.0

2026-09-20T18:16:16Z

commit 313c337a23b4ada012109aef21e6cb2eb73e8332 parent 1ca3897e4a6b5f0c06b0308583e65ee9cbb25d0e Author: Jack Mordaunt Date: Sun, 20 Sep 2026 15:16:16 -0300 c-lib: update libwebp to 1.6.0

Squashed 'c-lib/' changes from 6f496540..4fa21912

2026-09-20T18:16:16Z

commit 3dfa50469004e35610506d613f92d0038f210012 parent 604b2e25eeee8dd6ed0cb0a2ad77607be5e16180 Author: Jack Mordaunt Date: Sun, 20 Sep 2026 15:16:16 -0300 Squashed 'c-lib/' changes from 6f496540..4fa21912 4fa21912 update ChangeLog 370aa581 webp_js/README.md: add some more code formatting (``) f83c6b32 CMakeLists: add warning for incorrect emscripten config 6a3e656b update ChangeLog bf0bf1e7 api.md: add WebPValidateDecoderConfig to pseudocode e8ae210d update NEWS ce53efd7 bump version to 1.6.0 1c333170 update AUTHORS 85e098e5 webpmux: fix heap overflow w/-get/-set 418340d8 Merge "Make histogram allocation and access more readable and type-safe." into main 23ce76fa Merge "VP8BitReaderSetBuffer: move NULL check to call site" into main bbf3cbb1 VP8BitReaderSetBuffer: move NULL check to call site f6b87e03 Fix const style guide 8852f89a Have lossless return the same results with/without -mt e015dcc0 Make histogram allocation and access more readable and type-safe. 753ed11e enc_neon.c: fix aarch64 compilation w/gcc < 8.5.0 0cd0b7a7 enc_fuzzer.cc: remove duplicate include 2209ffba swig,cosmetics: normalize includes 15e2e1ee analysis_enc.c: remove unused include 98c27801 IWYU: Include all headers for symbols used in files. eb3ff781 Only use valid histograms in VP8LHistogramSet 57e324e2 Refactor VP8LHistogram histogram_enc.cc 7191a602 Merge "Generalize trivial histograms" into main 19696e0a Merge "alpha_processing_sse2: quiet signed conv warning" into main 89b01ecc Merge "cwebp: add `-resize_mode`" into main 52a430a7 Generalize trivial histograms e53e2130 Cache all costs in the histograms f8b360c4 alpha_processing_sse2: quiet signed conv warning eb4f8137 cwebp: add `-resize_mode` ad52d5fc dec/dsp/enc/utils,cosmetics: rm struct member '_' suffix ed7cd6a7 utils.c,cosmetics: rm struct member '_' suffix 3a23b0f0 random_utils.[hc],cosmetics: rm struct member '_' suffix a99d0e6f quant_levels_dec_utils.c,cosmetics: rm struct member '_' suffix 1ed4654d huffman_encode_utils.[hc],cosmetics: rm struct member '_' suffix f0689e48 config_enc.c,cosmetics: rm struct member '_' suffix 24262266 mux,cosmetics: rm struct member '_' suffix 3f54b1aa demux,cosmetics: rm struct member '_' suffix 295804e4 examples,cosmetics: rm struct member '_' suffix 5225592f Refactor VP8LHistogram to hide initializations from the user. 00338240 Remove some computations in histogram clustering 44f91b0d Speed DispatchAlpha_SSE2 up ee8e8c62 Fix member naming for VP8LHistogram a1ad3f1e Merge "Remove now unused ExtraCostCombined" into main 321561b4 Remove now unused ExtraCostCombined e0ae21d2 WebPMemoryWriterClear: use WebPMemoryWriterInit a4183d94 Remove the computation of ExtraCost when comparing histograms f2b3f527 Get AVX2 into WebP lossless 7c70ff7a Clean dsp/lossless includes 9dd5ae81 Use the full register in PredictorSub13_SSE2 613be8fc Makefile.vc: add /MP to CFLAGS 1d86819f Merge changes I1437390a,I10a20de5,I1ac777d1 into main 743a5f09 enc_neon: enable vld1q_u8_x4 for clang & msvc 565da148 pngdec.c: add support for 'eXIf' tag 319860e9 pngdec.c: support ImageMagick app1 exif text data 815fc1e1 pngdec.c: add missing #ifdef for png_get_iCCP 980b708e enc_neon: fix build w/aarch64 gcc < 9.4.0 73b728cb cmake: bump minimum version to 3.16 6a22b670 Add a function to validate a WebPDecoderConfig 7ed2b10e Use consistently signed stride types. 654bfb04 Avoid nullptr arithmetic in VP8BitReaderSetBuffer f8f24107 Fix potential "divide by zero" in examples found by coverity 2af6c034 Merge tag 'v1.5.0' a4d7a715 update ChangeLog c3d85ce4 update NEWS ad14e811 tests/fuzzer/*: add missing include 74cd026e fuzz_utils.cc: fix build error w/WEBP_REDUCE_SIZE a027aa93 mux_demux_api_fuzzer.cc: fix -Wshadow warning 25e17c68 update ChangeLog aa2684fc update NEWS 36923846 bump version to 1.5.0 ceea8ff6 update AUTHORS e4f7a9f0 img2webp: add a warning for unused options 1b4c967f Merge "Properly check the data size against the end of the RIFF chunk" into main 9e5ecfaf Properly check the data size against the end of the RIFF chunk da0d9c7d examples: exit w/failure w/no args fcff86c7 {gif,img}2webp: sync -m help w/cwebp b76c4a84 man/img2webp.1: sync -m text w/cwebp.1 & gif2webp.1 30633519 muxread: fix reading of buffers > riff size 4c85d860 yuv.h: update RGB<->YUV coefficients in comment 0ab789e0 Merge changes I6dfedfd5,I2376e2dc into main 03236450 {ios,xcframework}build.sh: fix compilation w/Xcode 16 61e2cfda rework AddVectorEq_SSE2 7bda3deb rework AddVector_SSE2 2ddaaf0a Fix variable names in SharpYuvComputeConversionMatrix a3ba6f19 Makefile.vc: fix gif2webp link error f999d94f gif2webp: add -sharp_yuv/-near_lossless dfdcb7f9 Merge "lossless.h: fix function declaration mismatches" into main 78ed6839 fix overread in Intra4Preds_NEON d516a68e lossless.h: fix function declaration mismatches 87406904 Merge "Improve documentation of SharpYuvConversionMatrix." into main fdb229ea Merge changes I07a7e36a,Ib29980f7,I2316122d,I2356e314,I32b53dd3, ... into main 0c3cd9cc Improve documentation of SharpYuvConversionMatrix. 169dfbf9 disable Intra4Preds_NEON 2dd5eb98 dsp/yuv*: use WEBP_RESTRICT qualifier 23bbafbe dsp/upsampling*: use WEBP_RESTRICT qualifier 35915b38 dsp/rescaler*: use WEBP_RESTRICT qualifier a32b436b dsp/lossless*: use WEBP_RESTRICT qualifier 04d4b4f3 dsp/filters*: use WEBP_RESTRICT qualifier b1cb37e6 dsp/enc*: use WEBP_RESTRICT qualifier 201894ef dsp/dec*: use WEBP_RESTRICT qualifier 02eac8a7 dsp/cost*: use WEBP_RESTRICT qualifier 84b118c9 Merge "webp-container-spec: normalize notes & unknown chunk link" into main 052cf42f webp-container-spec: normalize notes & unknown chunk link 220ee529 Search for best predictor transform bits 78619478 Try to reduce the sampling for the entropy image 14f09ab7 webp-container-spec: reorder chunk size - N text a78c5356 Remove a useless malloc for entropy image bc491763 Merge "Refactor predictor finding" into main 34f92238 man/{cwebp,img2webp}.1: rm 'if needed' from -sharp_yuv 367ca938 Refactor predictor finding a582b53b webp-lossless-bitstream-spec: clarify some text 0fd25d84 Merge "anim_encode.c: fix function ref in comment" into main f8882913 anim_encode.c: fix function ref in comment 40e4ca60 specs_generation.md: update kramdown command line 57883c78 img2webp: add -exact/-noexact per-frame options 1c8eba97 img2webp,cosmetics: add missing '.' spacers to help 2e81017c Convert predictor_enc.c to fixed point 94de6c7f Merge "Fix fuzztest link errors w/-DBUILD_SHARED_LIBS=1" into main 51d9832a Fix fuzztest link errors w/-DBUILD_SHARED_LIBS=1 7bcb36b8 Merge "Fix static overflow warning." into main 8e0cc14c Fix static overflow warning. cea68462 README.md: add security report note 615e5874 Merge "make VP8LPredictor[01]_C() static" into main 233e86b9 Merge changes Ie43dc5ef,I94cd8bab into main 1a29fd2f make VP8LPredictor[01]_C() static dd9d3770 Do*Filter_*: remove row & num_rows parameters ab451a49 Do*Filter_C: remove dead 'inverse' code paths f9a480f7 {TrueMotion,TM16}_NEON: remove zero extension 04834aca Merge changes I25c30a9e,I0a192fc6,I4cf89575 into main 39a602af webp-lossless-bitstream-spec: normalize predictor transform ref f28c837d Merge "webp-container-spec: align anim pseudocode w/prose" into main 74be8e22 Fix implicit conversion issues 0c01db7c Merge "Increase the transform bits if possible." into main f2d6dc1e Increase the transform bits if possible. caa19e5b update link to issue tracker c9dd9bd4 webp-container-spec: align anim pseudocode w/prose 8a7c8dc6 WASM: Enable VP8L_USE_FAST_LOAD f0c53cd9 WASM: don't use USE_GENERIC_TREE eef903d0 WASM: Enable 64-bit BITS caching 6296cc8d iterator_enc: make VP8IteratorReset() static fbd93896 histogram_enc: make VP8LGetHistogramSize static cc7ff545 cost_enc: make VP8CalculateLevelCosts[] static 4e2828ba vp8l_dec: make VP8LClear() static d742b24a Intra16Preds_NEON: fix truemotion saturation c7bb4cb5 Intra4Preds_NEON: fix truemotion saturation 952a989b Merge "Remove TODO now that log is using fixed point." into main dde11574 Remove TODO now that log is using fixed point. a1ca153d Fix hidden myerr in my_error_exit 3bd94202 Merge changes Iff6e47ed,I24c67cd5,Id781e761 into main d27d246e Merge "Convert VP8LFastSLog2 to fixed point" into main 4838611f Disable msg_code use in fuzzing mode 314a142a Use QuantizeBlock_NEON for VP8EncQuantizeBlockWHT on Arm 3bfb05e3 Add AArch64 Neon implementation of Intra16Preds baa93808 Add AArch64 Neon implementation of Intra4Preds 41a5e582 Fix errors when compiling code as C++ fb444b69 Convert VP8LFastSLog2 to fixed point c1c89f51 Fix WEBP_NODISCARD comment and C++ version 66408c2c Switch the histogram_enc.h API to fixed point ac1e410d Remove leftover tiff dep b78d3957 Disable TIFF on fuzztest. cff21a7d Do not build statically on oss-fuzz. 6853a8e5 Merge "Move more internal fuzzers to public." into main 9bc09db4 Merge "Convert VP8LFastLog2 to fixed point" into main 0a9f1c19 Convert VP8LFastLog2 to fixed point db0cb9c2 Move more internal fuzzers to public. ff2b5b15 Merge "advanced_api_fuzzer.cc: use crop dims in OOM check" into main c4af79d0 Put 0 at the end of a palette and do not store it. 0ec80aef Delete last references to delta palettization 96d79f84 advanced_api_fuzzer.cc: use crop dims in OOM check c35c7e02 Fix huffman fuzzer to not leak. f2fe8dec Bump fuzztest dependency. 9ce982fd Fix fuzz tests to work on oss-fuzz 3ba8af1a Do not escape quotes anymore in build.sh ea0e121b Allow centipede to be used as a fuzzing engine. 27731afd make VP8I4ModeOffsets & VP8MakeIntra4Preds static ddd6245e oss-fuzz/build.sh: use heredoc for script creation 50074930 oss-fuzz/build.sh,cosmetics: fix indent 20e92f7d Limit the possible fuzz engines. 4f200de5 Switch public fuzz tests to fuzztest. 64186bb3 Add huffman_fuzzer to .gitignore 0905f61c Move build script from oss-fuzz repo to here. e8678758 Fix link to Javascript documentation 5e5b8f0c Fix SSE2 Transform_AC3 function name 45129ee0 Revert "Check all the rows." ee26766a Check all the rows. 7ec51c59 Increase the transform bits if possible. 3cd16fd3 Revert "Increase the transform bits if possible." 971a03d8 Increase the transform bits if possible. 1bf198a2 Allow transform_bits to be different during encoding. 1e462ca8 Define MAX_TRANSFORM_BITS according to the specification. 64d1ec23 Use (MIN/NUM)_(TRANSFORM/HUFFMAN)_BITS where appropriate a90160e1 Refactor histograms in predictors. a7aa7525 Fix some function declarations 68ff4e1e Merge "jpegdec: add a hint for EOF/READ errors" into main 79e7968a jpegdec: add a hint for EOF/READ errors d33455cd man/*: s/BUGS/REPORTING BUGS/ a67ff735 normalize example exit status edc28909 upsampling_{neon,sse41}: fix int sanitizer warning 3cada4ce ImgIoUtilReadFile: check ftell() return dc950585 Merge tag 'v1.4.0' 845d5476 update ChangeLog 8a6a55bb update NEWS cf7c5a5d provide a way to opt-out/override WEBP_NODISCARD cc34288a update ChangeLog f13c0886 NEWS: fix date 74555950 Merge "vwebp: fix window title when options are given" into 1.4.0 d781646c vwebp: fix window title when options are given c2e394de update NEWS f6d15cb7 bump version to 1.4.0 57c388b8 update AUTHORS b3d1b2cb Merge changes I26f4aa22,I83386b6c,I320ed1a2 into main 07216886 webp-container-spec: fix VP8 chunk ref ('VP8'->'VP8 ') f88666eb webp_js/*.html: fix canvas mapping e2c8f233 cmake,wasm: simplify SDL2 related flags d537cd37 cmake: fix vwebp_sdl compile w/libsdl-org release 6c484cbf CMakeLists.txt: add missing WEBP_BUILD_EXTRAS check 7b0bc235 man/cwebp.1: add more detail to -partition_limit 3c0011bb WebPMuxGetChunk: add an assert 955a3d14 Merge "muxread,MuxGet: add an assert" into main 00abc000 muxread,MuxGet: add an assert 40e85a0b Have the window title reflect the filename. 1bf46358 man/cwebp.1: clarify -pass > 1 behavior w/o -size/-psnr eba03acb webp-container-spec: replace 'above' with 'earlier' a16d30cb webp-container-spec: clarify chunk order requirements 8a7e9112 Merge "CMakeLists.txt: apply cmake-format" into main 7fac6c1b Merge "Copy C code to not have multiplication overflow" into main e2922e43 Merge "Check for the presence of the ANDROID_ABI variable" into main 501d9274 Copy C code to not have multiplication overflow fba7d62e CMakeLists.txt: apply cmake-format 661c1b66 Merge "windows exports: use dllexport attribute, instead of visibility." into main 8487860a windows exports: use dllexport attribute, instead of visibility. 8ea678b9 webp/mux.h: data lifetime note w/copy_data=0 79e05c7f Check for the presence of the ANDROID_ABI variable 45f995a3 Expose functions for managing non-image chunks on WebPAnimEncoder 1fb9f3dc gifdec: fix ErrorGIFNotAvailable() declaration 4723db65 cosmetics: s/SANITY_CHECK/DCHECK/ f4b9bc9e clear -Wextra-semi-stmt warnings 713982b8 Limit animdecoder_fuzzer to 320MB cbe825e4 cmake: fix sharpyuv simd files' build f99305e9 Makefile.vc: add ARM64 support 5efd6300 mv SharpYuvEstimate420Risk to extras/ e78e924f Makefile.vc: add sharpyuv_risk_table.obj d7a0506d Add YUV420 riskiness metric. 89c5b917 Merge "BuildHuffmanTable check sorted[] array bounds before writing" into main 34c80749 Remove alpha encoding pessimization. 13d9c30b Add a WEBP_NODISCARD 24d7f9cb Switch code to SDL2. 0b56dedc BuildHuffmanTable check sorted[] array bounds before writing a429c0de sharpyuv: convert some for() to do/while f0cd7861 DoSharpArgbToYuv: remove constant from loop 339231cc SharpYuvConvertWithOptions,cosmetics: fix formatting 307071f1 Remove medium/large code model-specific inline asm deadc339 Fix transfer functions where toGamma and toLinear are swapped. e7b78d43 Merge "Fix bug in FromLinearLog100." into main 15a1309e Merge "webp-lossless-bitstream-spec: delete extra blank line" into main 54ca9752 Fix bug in FromLinearLog100. d2cb2d8c Dereference after NULL check. e9d50107 webp-lossless-bitstream-spec: delete extra blank line 78657971 Merge changes Ief442c90,Ie6e9c9a5 into main e30a5884 webp-lossless-bitstream-spec: update variable names 09ca1368 Merge "webp-container-spec: change assert to MUST be TRUE" into main 38cb4fc0 iosbuild,xcframeworkbuild: add SharpYuv framework 40afa926 webp-lossless-bitstream-spec: simplify abstract 9db21143 webp-container-spec: change assert to MUST be TRUE cdbf88ae Fix typo in API docs for incremental decoding 05c46984 Reformat vcpkg build instructions. 8534f539 Merge "Never send VP8_STATUS_SUSPENDED back in non-incremental." into main 35e197bd Never send VP8_STATUS_SUSPENDED back in non-incremental. 61441425 Add vcpkg installation instructions dce8397f Fix next is invalid pointer when WebPSafeMalloc fails 57c58105 Cmake: wrong public macro WEBP_INCLUDE_DIRS c1ffd9ac Merge "vp8l_enc: fix non-C90 code" into main a3965948 Merge changes If628bb93,Ic79f6309,I45f0db23 into main f80e9b7e vp8l_enc: fix non-C90 code accd141d Update lossless spec for two simple codes. ac17ffff Fix non-C90 code. 433c7dca Fix static analyzer warnings. 5fac76cf Merge tag 'v1.3.2' ca332209 update ChangeLog 1ace578c update NEWS 63234c42 bump version to 1.3.2 a35ea50d Add a fuzzer for ReadHuffmanCodes 95ea5226 Fix invalid incremental decoding check. 2af26267 Fix OOB write in BuildHuffmanTable. 902bc919 Fix OOB write in BuildHuffmanTable. 7ba44f80 Homogenize "__asm__ volatile" vs "asm volatile" 68e27135 webp-container-spec: reorder example chunk layout 943b932a Merge changes I6a4d0a04,Ibc37b91e into main 1cc94f95 decode.h: wrap idec example in /* */ 63acdd1e decode.h: fix decode example aac5c5d0 ReadHuffmanCode: rm redundant num code lengths check a2de25f6 webp-lossless-bitstream-spec: normalize list item case 68820f0e webp-lossless-bitstream-spec: normalize pixel ref cdb31aa8 webp-lossless-bitstream-spec: add missing periods 0535a8cf webp-lossless-bitstream-spec: fix grammar b6c4ce26 normalize numbered list item format dd7364c3 Merge "palette.c: fix msvc warnings" into main c63c5df6 palette.c: fix msvc warnings 0a2cad51 webp-container-spec: move terms from intro section dd88d2ff webp-lossless-bitstream-spec: color_cache -> color cache 6e750547 Merge changes I644d7d39,Icf05491e,Ic02e6652,I63b11258 into main 67a7cc2b webp-lossless-bitstream-spec: fix code blocks 1432ebba Refactor palette sorting computation. cd436142 webp-lossless-bitstream-spec: block -> chunk 3cb66f64 webp-lossless-bitstream-spec: add some missing commas 56471a53 webp-lossless-bitstream-spec: normalize item text in 5.1 af7fbfd2 vp8l_dec,ReadTransform: improve error status reporting 7d8e0896 vp8l_dec: add VP8LSetError() a71ce1cf animencoder_fuzzer: fix error check w/Nallocfuzz e94b36d6 webp-lossless-bitstream-spec: relocate details from 5.1 84628e56 webp-lossless-bitstream-spec: clarify image width changes ee722997 alpha_dec: add missing VP8SetError() 0081693d enc_dec_fuzzer: use WebPDecode() 0fcb311c enc_dec_fuzzer: fix WebPEncode/pic.error_code check 982c177c webp-lossless-bitstream-spec: fix struct member refs 56cf5625 webp-lossless-bitstream-spec: use RFC 7405 for ABNF 6c6b3fd3 webp-lossless-bitstream-spec,cosmetics: delete blank lines 29b9eb15 Merge changes Id56ca4fd,I662bd1d7 into main 47c0af8d ReadHuffmanCodes: rm max_alphabet_size calc b92deba3 animencoder_fuzzer: no WebPAnimEncoderAssemble check w/nallocfuzz 6be9bf8b animencoder_fuzzer: fix leak on alloc failure 5c965e55 vp8l_dec,cosmetics: add some /*param=*/ comments e4fc2f78 webp-lossless-bitstream-spec: add validity note for max_symbol 71916726 webp-lossless-bitstream-spec: fix max_symbol definition eac3bd5c Have the palette code be in its own file. e2c85878 Add an initializer for the SharpYuvOptions struct. 4222b006 Merge tag 'v1.3.1' 25d94f47 Implement more transfer functions in libsharpyuv 2153a679 Merge changes Id0300937,I5dba5ccf,I57bb68e0,I2dba7b4e,I172aca36, ... into main 4298e976 webp-lossless-bitstream-spec: add PredictorTransformOutput cd7e02be webp-lossless-bitstream-spec: fix RIFF-header ABNF 6c3845f9 webp-lossless-bitstream-spec: split LZ77 Backward Ref section 7f1b6799 webp-lossless-bitstream-spec: split Meta Prefix Codes section 7b634d8f webp-lossless-bitstream-spec: note transform order 6d6d4915 webp-lossless-bitstream-spec: update transformations text fd7bb21c update ChangeLog e1adea50 update NEWS 6b1c722a lossless_common.h,cosmetics: fix a typo 08d60d60 webp-lossless-bitstream-spec: split code length section 7a12afcc webp-lossless-bitstream-spec: rm unused anchor 43393320 enc/*: normalize WebPEncodingSetError() calls 287fdefe enc/*: add missing WebPEncodingSetError() calls c3bd7cff EncodeAlphaInternal: add missing error check 14a9dbfb webp-lossless-bitstream-spec: refine single node text 64819c7c Implement ExtractGreen_SSE2 d49cfbb3 vp8l_enc,WriteImage: add missing error check 2e5a9ec3 muxread,MuxImageParse: add missing error checks ebb6f949 cmake,emscripten: explicitly set stack size 59a2b1f9 WebPDecodeYUV: check u/v/stride/uv_stride ptrs 8e965ccb Call png_get_channels() to see if image has alpha fe80fbbd webp-container-spec: add some missing commas e8ed3176 Merge "treat FILTER_NONE as a regular Unfilter[] call" into main 03a7a048 webp-lossless-bitstream-spec: rm redundant statement c437c7aa webp-lossless-bitstream-spec: mv up prefix code group def e4f17a31 webp-lossless-bitstream-spec: fix section reference e2ecd5e9 webp-lossless-bitstream-spec: clarify ABNF syntax 8b55425a webp-lossless-bitstream-spec: refine pixel copy text 29c9f2d4 webp-lossless-bitstream-spec: minor wording updates 6b02f660 treat FILTER_NONE as a regular Unfilter[] call 7f75c91c webp-container-spec: fix location of informative msg f6499943 webp-container-spec: consistently quote FourCCs 49918af3 webp-container-spec: minor wording updates 7f0a3419 update ChangeLog bab7efbe update NEWS 7138bf8f bump version to 1.3.1 435b4ded update AUTHORS 47351229 update .mailmap 46bc4fc9 Merge "Switch ExtraCost to ints and implement it in SSE." into main 828b4ce0 Switch ExtraCost to ints and implement it in SSE. ff6c7f4e CONTRIBUTING.md: add C style / cmake-format notes dd530437 add .cmake-format.py adbe2cb1 cmake,cosmetics: apply cmake-format 15b36508 doc/webp-container-spec: rm future codec comment c369c4bf doc/webp-lossless-bitstream-spec: improve link text 1de35f47 doc/webp-container-spec: don't use 'currently' bb06a16e doc/webp-container-spec: prefer present tense 9f38b71e doc/webp-lossless-bitstream-spec: prefer present tense 7acb6b82 doc/webp-container-spec: avoid i.e. & e.g. 4967e7cd doc/webp-lossless-bitstream-spec: avoid i.e. & e.g. e3366659 Merge "Do not find_package image libraries if not needed." into main 428588ef clarify single leaf node trees and use of canonical prefix coding 709ec152 Do not find_package image libraries if not needed. 8dd80ef8 fuzz_utils.h: lower kFuzzPxLimit w/ASan 8f187b9f Clean message calls in CMake cba30078 WebPConfig.cmake.in: use calculated include path 6cf9a76a Merge "webp-lossless-bitstream-spec: remove use of 'dynamics'" into main 740943b2 Merge "Specialize and optimize ITransform_SSE2 using do_two" into main 2d547e24 Compare kFuzzPxLimit to max_num_operations ac42dde1 Specialize and optimize ITransform_SSE2 using do_two 17e0ef1d webp-lossless-bitstream-spec: remove use of 'dynamics' ed274371 neon.h,cosmetics: clear a couple lint warnings 3fb82947 cpu.h,cosmetics: segment defines 0c496a4f cpu.h: add WEBP_AARCH64 8151f388 move VP8GetCPUInfo declaration to cpu.c 916548c2 Make kFuzzPxLimit sanitizer dependent 4070b271 advanced_api_fuzzer: reduce scaling limit 761f49c3 Merge "webp-lossless-bitstream-spec: add missing bits to ABNF" into main 84d04c48 webp-lossless-bitstream-spec: add missing bits to ABNF 0696e1a7 advanced_api_fuzzer: reduce scaling limit 93d88aa2 Merge "deps.cmake: remove unneeded header checks" into main 118e0035 deps.cmake: remove unneeded header checks 4c3d7018 webp-lossless-bitstream-spec: condense normal-prefix-code a6a09b32 webp-lossless-bitstream-spec: fix 2 code typos 50ac4f7c Merge "cpu.h: enable NEON w/_M_ARM64EC" into main 4b7d7b4f Add contribution instructions 0afbd97b cpu.h: enable NEON w/_M_ARM64EC 349f4353 Merge changes Ibd89e56b,Ic57e7f84,I89096614 into main 8f7513b7 upsampling_neon.c: fix WEBP_SWAP_16BIT_CSP check cbf624b5 advanced_api_fuzzer: reduce scaling limit 89edfdd1 Skip slow scaling in libwebp advanced_api_fuzzer 859f19f7 Reduce libwebp advanced_api_fuzzer threshold a4f04835 Merge changes Ic389aaa2,I329ccd79 into main 1275fac8 Makefile.vc: fix img2webp link w/dynamic cfg 2fe27bb9 img2webp: normalize help output 24bed3d9 cwebp: reflow -near_lossless help text 0825faa4 img2webp: add -sharp_yuv/-near_lossless d64e6d7d Merge "PaletteSortModifiedZeng: fix leak on error" into main 0e12a22d Merge "EncodeAlphaInternal: clear result->bw on error" into main 0edbb6ea PaletteSortModifiedZeng: fix leak on error 41ffe04e Merge "Update yapf style from "chromium" to "yapf"" into main 2d9d9265 Update yapf style from "chromium" to "yapf" a486d800 EncodeAlphaInternal: clear result->bw on error 1347a32d Skip big scaled advanced_api_fuzzer 52b6f067 Fix scaling limit in advanced_api_fuzzer.c 73618428 Limit scaling in libwebp advanced_api_fuzzer.c b54d21a0 Merge "CMakeLists.txt: allow CMAKE_INSTALL_RPATH to be set empty" into main 31c28db5 libwebp{,demux,mux}.pc.in: Requires -> Requires.private d9a505ff CMakeLists.txt: allow CMAKE_INSTALL_RPATH to be set empty bdf33d03 Merge tag 'v1.3.0' b5577769 update ChangeLog 0ba77244 update NEWS e763eb1e bump version to 1.3.0 2a8686fc update AUTHORS 106a57c1 Merge "*/Android.mk: add a check for NDK_ROOT" into main c5e841c4 Merge "extras: WebpToSDL -> WebPToSDL" into main dbc30715 Merge "xcframeworkbuild.sh: bump MACOSX_CATALYST_MIN_VERSION" into main 6fc1a9f9 */Android.mk: add a check for NDK_ROOT d3e151fc doc/api.md,webp_js/README.md: Webp -> WebP ed92a626 extras: WebpToSDL -> WebPToSDL 6eb0189b xcframeworkbuild.sh: bump MACOSX_CATALYST_MIN_VERSION 1d58575b CMake: align .pc variables with autoconf e5fe2cfc webp-lossless-bitstream-spec,cosmetics: reflow paragraphs 0ceeeab9 webp-lossless-bitstream-spec: add amendment note 607611cd Merge "webp-container-spec: normalize section title case" into main f853685e lossless: SUBTRACT_GREEN -> SUBTRACT_GREEN_TRANSFORM 786497e4 webp-lossless-bitstream-spec: fix inv color txfm description c6ac672d webp-lossless-bitstream-spec: fix num_code_lengths check b5700efb webp-lossless-bitstream-spec,cosmetics: grammar/capitalization d8ed8c11 webp-container-spec: normalize section title case 52ec0b8f Merge changes Ie975dbb5,Ifc8c93af,I6ca7c5d6,I2e8d66f5,I152477b8 into main 5097ef62 webp-container-spec,cosmetics: grammar/capitalization e3ba2b1f webp-lossless-bitstream-spec,cosmetics: reflow abstract 1e8e3ded webp-lossless-bitstream-spec: reword abstract re alpha 017cb6fa webp-container-spec,cosmetics: normalize range syntax f6a4684b webp-lossless-bitstream-spec,cosmetics: normalize range syntax 54ebd5a3 webp-lossless-bitstream-spec: limit dist map lut to 69 cols 44741f9c webp-lossless-bitstream-spec: fix dist mapping example fad0ece7 pnmdec.c: use snprintf instead of sprintf 3f73e8f7 sharpyuv: add SharpYuvGetVersion() ce2f2d66 SharpYuvConvert: fix a race on SharpYuvGetCPUInfo a458e308 sharpyuv_dsp.h: restore sharpyuv_cpu.h include 9ba800a7 Merge changes Id72fbf3b,Ic59d23a2 into main 979c0ebb sharpyuv: add SharpYuvGetCPUInfo 8bab09a4 Merge "*.pc.in: rename lib_prefix to webp_libname_prefix" into main 769387c5 cpu.c,cosmetics: fix a typo a02978c2 sharpyuv/Makefile.am+cmake: add missing -lm 28aedcb9 *.pc.in: rename lib_prefix to webp_libname_prefix c42e6d5a configure.ac: export an empty lib_prefix variable dfc843aa Merge "*.pc.in: add lib prefix to lib names w/MSVC" into main 2498209b *.pc.in: add lib prefix to lib names w/MSVC ac252b61 Merge "analysis_enc.c: fix a dead store warning" into main 56944762 analysis_enc.c: fix a dead store warning d34f9b99 Merge "webp-lossless-bitstream-spec: convert BNF to ABNF" into main dc05b4db Merge changes I96bc063c,I45880467,If9e18e5a,I6ee938e4,I0a410b28, ... into main 83270c7f webp-container-spec: add prose for rendering process 73b19b64 webp-container-spec: note reserved fields MUST be ignored 57101d3f webp-lossless-bitstream-spec: improve 'small' color table stmt dfd32e45 webp-container-spec: remove redundant sentence 8a6185dd doc/webp-*: fix some punctuation, grammar 72776530 webp-lossless-bitstream-spec: convert BNF to ABNF d992bb08 cmake: rename cpufeatures target to cpufeatures-webp 3ed2b275 webp-container-spec: clarify background color note 951c292d webp-container-spec: come too late -> out of order 902dd787 webp-container-spec: prefer hex literals a8f6b5ee webp-container-spec: change SHOULD to MUST w/ANIM chunk 1dc59435 webp-container-spec: add unknown fields MUST be ignored 280a810f webp-container-spec: make padding byte=0 a MUST 41f0bf68 webp-container-spec: update note on trailing data 6bdd36db webp-container-spec: clarify Chunk Size is in bytes 87e36c48 Merge "webp_js/README.md,cosmetics: reflow some lines" into main 5b01f321 Merge "Update Windows makefile to build libsharpyuv library." into main 19b1a71c webp_js/README.md,cosmetics: reflow some lines 780db756 Update Windows makefile to build libsharpyuv library. e407d4b3 CMakeLists.txt: replace GLUT_glut_LIBRARY w/GLUT::GLUT abf73d62 Merge "WebPConfig.cmake.in: add find_dependency(Threads)" into main 25807fb4 Merge "cmake: restore compatibility with cmake < 3.12" into main 5dbc4bfa WebPConfig.cmake.in: add find_dependency(Threads) b2a175dd Merge "Update wasm instructions." into main cb90f76b Update wasm instructions. 02d15258 cmake: restore compatibility with cmake < 3.12 5ba046e2 CMake: add_definitions -> add_compile_options e68765af dsp,neon: use vaddv in a few more places e8f83de2 Set libsharpyuv include dir to 'webp' subdirectory. 15a91ab1 cmake,cosmetics: apply cmake-format 0dd49d1a CMakeLists.txt: set @ONLY in configure_file() calls 62b1bfe8 Merge changes I2877e7bb,I777cad70,I15af7d1a,I686e6740,If10538a9, ... into main 95c8fe5f Merge changes Iecea3603,I9dc228ab into main e7c805cf picture_csp_enc.c: remove SafeInitSharpYuv 6af8845a sharpyuv: prefer webp/types.h 639619ce cmake: fix dll exports 782ed48c sharpyuv,SharpYuvInit: add mutex protection when available cad0d5ad sharyuv_{neon,sse2}.c: merge WEBP_USE_* sections ef70ee06 add a few missing includes for NULL f0f9eda4 sharpyuv.h: remove 9b902cba Merge "picture_csp_enc.c,CheckNonOpaque: rm unneeded local" into main 9c1d457c cmake/cpu.cmake: remove unused variable 9ac25bcb CMakeLists.txt,win32: match naming convention used by nmake 76c353ba picture_csp_enc.c,CheckNonOpaque: rm unneeded local 5000de54 Merge "cwebp: fix WebPPictureHasTransparency call" into main e1729309 Merge "WebPPictureHasTransparency: add missing pointer check" into main 00ff988a vp8l_enc,AddSingleSubGreen: clear int sanitizer warnings e2fecc22 dsp/lossless_enc.c: clear int sanitizer warnings 129cf9e9 dsp/lossless.c: clear int sanitizer warnings ad7d1753 dsp/lossless_enc.c: clear int sanitizer warnings 5037220e VP8LSubtractGreenFromBlueAndRed_C: clear int sanitizer warnings 2ee786c7 upsampling_sse2.c: clear int sanitizer warnings 4cc157d4 ParseOptionalChunks: clear int sanitizer warning 892cf033 BuildHuffmanTable: clear int sanitizer warning 3a9a4d45 VP8GetSigned: clear int sanitizer warnings 704a3d0a dsp/lossless.c: quiet int sanitizer warnings 1a6c109c WebPPictureHasTransparency: add missing pointer check c626e7d5 cwebp: fix WebPPictureHasTransparency call 866e349c Merge tag 'v1.2.4' c170df38 Merge "Create libsharpyuv.a in makefile.unix." into main 9d7ff74a Create libsharpyuv.a in makefile.unix. 0d1f1254 update ChangeLog fcbc2d78 Merge "doc/*.txt: restrict code to 69 columns" into main 4ad0e189 Merge "webp-container-spec.txt: normalize fourcc spelling" into main 980d2488 update NEWS 9fde8127 bump version to 1.2.4 7a0a9935 doc/*.txt: restrict code to 69 columns c040a615 webp-container-spec.txt: normalize fourcc spelling aff1c546 dsp,x86: normalize types w/_mm_cvtsi128_si32 calls ab540ae0 dsp,x86: normalize types w/_mm_cvtsi32_si128 calls 8980362e dsp,x86: normalize types w/_mm_set* calls (2) e626925c lossless: fix crunch mode w/WEBP_REDUCE_SIZE 83539239 dsp,x86: normalize types w/_mm_set* calls 8a4576ce webp-container-spec.txt: replace & with & db870881 Merge "webp-container-spec.txt: make reserved 0 values a MUST" into main 01d7d378 webp-lossless-bitstream-spec: number all sections 337cf69f webp-lossless-bitstream-spec: mv Nomenclature after Intro 79be856e Merge changes I7111d1f7,I872cd62c into main 5b87983a webp-container-spec.txt: make reserved 0 values a MUST bd939123 Merge changes I7a25b1a6,I51b2c2a0,I87d0cbcf,I6ec60af6,I0a3fe9dc into main 04764b56 libwebp.pc: add libsharpyuv to requires 7deee810 libsharpyuv: add pkg-config file 1a64a7e6 webp-container-spec.txt: clarify some SHOULDs bec2c88a webp-container-spec.txt: move ChunkHeader to terminology c9359332 webp-container-spec.txt: clarify 'VP8 '/'XMP ' fourccs 70fe3063 webp-container-spec.txt: rightsize table entries ddbf3f3f webp-container-spec.txt: update 'key words' text c151e95b utils.h,WEBP_ALIGN: make bitmask unsigned 748e92bb add WebPInt32ToMem 3fe15b67 Merge "Build libsharpyuv as a full installable library." into main 4f402f34 add WebPMemToInt32 a3b68c19 Build libsharpyuv as a full installable library. b4994eaa CMake: set rpath for shared objects 94cd7117 Merge "CMake: fix dylib versioning" into main e91451b6 Fix the lossless specs a bit more. 231bdfb7 CMake: fix dylib versioning bfad7ab5 CMakeLists.txt: correct libwebpmux name in WebPConfig.cmake c2e3fd30 Revert "cmake: fix webpmux lib name for cmake linking" 7366f7f3 Merge "lossless: fix crunch mode w/WEBP_REDUCE_SIZE" into main 84163d9d lossless: fix crunch mode w/WEBP_REDUCE_SIZE d01c1eb3 webp-lossless-bitstream-spec,cosmetics: normalize capitalization 8813ca8e Merge tag 'v1.2.3' 3c4a0fbf update ChangeLog 56a480e8 dsp/cpu.h: add missing extern "C" 62b45bdd update ChangeLog 8764ec7a Merge changes Idb037953,Id582e395 into 1.2.3 bcb872c3 vwebp: fix file name display in windows unicode build 67c44ac5 webpmux: fix -frame option in windows unicode build 8278825a makefile.unix: add sharpyuv objects to clean target 14a49e01 update NEWS 34b1dc33 bump version to 1.2.3 0b397fda update AUTHORS c16488ac update .mailmap 5a2d929c Merge "unicode.h: set console mode before using wprintf" into main 169f867f unicode.h: set console mode before using wprintf a94b855c Merge "libsharpyuv: add version defines" into main f83bdb52 libsharpyuv: add version defines bef0d797 unicode_gif.h: fix -Wdeclaration-after-statement 404c1622 Rename Huffman coding to prefix coding in the bitstream spec 8895f8a3 Merge "run_static_analysis.sh: fix scan-build archive path" into main 92a673d2 Merge "Add -fvisibility=hidden flag in CMakeLists." into main 67c1d722 Merge "add WEBP_MSAN" into main 1124ff66 Add -fvisibility=hidden flag in CMakeLists. e15b3560 add WEBP_MSAN ec9e782a sharpyuv: remove minimum image size from sharpyuv library 7bd07f3b run_static_analysis.sh: fix scan-build archive path 5ecee06f Merge "sharpyuv: increase precision of gamma<->linear conversion" into main f81dd7d6 Merge changes I3d17d529,I53026880,I1bd61639,I6bd4b25d,Icfec8fba into main 2d607ee6 sharpyuv: increase precision of gamma<->linear conversion 266cbbc5 sharpyuv: add 32bit version of SharpYuvFilterRow. 9fc12274 CMake: add src to webpinfo includes 7d18f40a CMake: add WEBP_BUILD_WEBPINFO to list of checks for exampleutil 11309aa5 CMake: add WEBP_BUILD_WEBPMUX to list of checks for exampleutil 4bc762f7 CMake: link imageioutil to exampleutil after defined 0d1b9bc4 WEBP_DEP_LIBRARIES: use Threads::Threads 20ef48f0 Merge "sharpyuv: add support for 10/12/16 bit rgb and 10/12 bit yuv." into main 93c54371 sharpyuv: add support for 10/12/16 bit rgb and 10/12 bit yuv. 53cf2b49 normalize WebPValidatePicture declaration w/definition d3006f4b sharpyuv: slightly improve precision ea967098 Merge changes Ia01bd397,Ibf3771af into main 11bc8410 Merge changes I2d317c4b,I9e77f6db into main 30453ea4 Add an internal WebPValidatePicture. 6c43219a Some renamings for consistency. 4f59fa73 update .mailmap e74f8a62 webp-lossless-bitstream-spec,cosmetics: normalize range syntax 5a709ec0 webp-lossless-bitstream-spec,cosmetics: fix code typo a2093acc webp-lossless-bitstream-spec: add amendment note 86c66930 webp-lossless-bitstream-spec: fix BNF 232f22da webp-lossless-bitstream-spec: fix 'simple code' snippet 44dd765d webp-lossless-bitstream-spec: fix ColorTransform impl 7a7e33e9 webp-lossless-bitstream-spec: fix TR-pixel right border note 86f94ee0 Update lossless spec with Huffman codes. a3927cc8 sharpyuv.c,cosmetics: fix indent 6c45cef7 Make sure the stride has a minimum value in the importer. 0c8b0e67 sharpyuv: cleanup/cosmetic changes dc3841e0 {histogram,predictor}_enc: quiet int -> float warnings a19a25bb Replace doubles by floats in lossless misc cost estimations. 42888f6c Add an option to enable static builds. 7efcf3cc Merge "Fix typo in color constants: Marix -> Matrix" into main 8f4b5c62 Fix typo in color constants: Marix -> Matrix 90084d84 Merge "demux,IsValidExtendedFormat: remove unused variable" into main ed643f61 Merge changes I452d2485,Ic6d75475 into main 8fa053d1 Rename SharpYUV to SharpYuv for consistency. 99a87562 SharpYuvComputeConversionMatrix: quiet int->float warnings deb426be Makefile.vc: add sharpyuv_csp.obj to SHARPYUV_OBJS 779597d4 demux,IsValidExtendedFormat: remove unused variable 40e8aa57 Merge "libsharpyuv: add colorspace utilities" into main 01a05de1 libsharpyuv: add colorspace utilities 2de4b05a Merge changes Id9890a60,I376d81e6,I1c958838 into main b8bca81f Merge "configure.ac: use LT_INIT if available" into main e8e77b9c Merge changes I479bc487,I39864691,I5d486c2c,I186d13be into main 7e7d5d50 Merge ".gitignore: add Android Studio & VS code dirs" into main 10c50848 normalize label indent 89f774e6 mux{edit,internal}: fix leaks on error 2d3293ad ExUtilInitCommandLineArguments: fix leak on error ec34fd70 anim_util: fix leaks on error e4717287 gif2webp: fix segfault on OOM e3cfafaf GetBackwardReferences: fail on alloc error a828a59b BackwardReferencesHashChainDistanceOnly: fix segfault on OOM fe153fae VP8LEncodeStream: fix segfault on OOM 919acc0e .gitignore: add Android Studio & VS code dirs efa0731b configure.ac: use LT_INIT if available 0957fd69 tiffdec: add grayscale support e685feef Merge "Make libsharpyuv self-contained by removing dependency on cpu.c" into main 841960b6 Make libsharpyuv self-contained by removing dependency on cpu.c 617cf036 image_dec: add WebPGetEnabledInputFileFormats() 7a68afaa Let SharpArgbToYuv caller pass in an RGB>YUV conversion matrix. 34bb332c man/cwebp.1: add note about crop/resize order f0e9351c webp-lossless-bitstream-spec,cosmetics: fix some typos 5ccbd6ed vp8l_dec.c,cosmetics: fix a few typos c3d0c2d7 fix ios build scripts after sharpyuv dep added d0d2292e Merge "Make libwebp depend on libsharpyuv." into main 03d12190 alpha_processing_neon.c: fix 0x01... typo d55d447c Make libwebp depend on libsharpyuv. e4cbcdd2 Fix lossless encoding for MIPS. 924e7ca6 alpha_processing_neon.c: fix Dispatch/ExtractAlpha_NEON 0fa0ea54 Makefile.vc: use /MANIFEST:EMBED 29cc95ce Basic version of libsharpyuv in libwebp, in C. a30f2190 examples/webpmux.c: fix a couple of typos 66b3ce23 Fix bad overflow check in ReadTIFF() 54e61a38 Markdownify libwebp docs and reorganize them. b4533deb CMakeLists.txt,cosmetics: break long line b9d2f9cd quant_enc.c: use WEBP_RESTRICT qualifier ec178f2c Add progress hook granularity in lossless 26139c73 Rename MAX_COST to MAX_BIT_COST in histogram_enc.c 13b82816 cmake: fix webpmux lib name for cmake linking 88b6a396 webp-container-spec.txt,cosmetics: normalize formatting git-subtree-dir: c-lib git-subtree-split: 4fa21912338357f89e4fd51cf2368325b59e9bd9

README: document the backends, build tags and benchmarks

2026-09-20T12:12:10Z

commit 1ca3897e4a6b5f0c06b0308583e65ee9cbb25d0e parent 4c5b328b64936ef33eab2764e83994974b100691 Author: Jack Mordaunt Date: Sun, 20 Sep 2026 09:12:10 -0300 README: document the backends, build tags and benchmarks Tag matrix with measured binary sizes, benchmark results across the corpus in ./bench, and the commands to reproduce them.

bench: add a backend benchmark harness

2026-09-20T12:08:29Z

commit 4c5b328b64936ef33eab2764e83994974b100691 parent d163123589e9e2ed6dde377b66d7668b80616ac5 Author: Jack Mordaunt Date: Sun, 20 Sep 2026 09:08:29 -0300 bench: add a backend benchmark harness Compares the backends across a 14-image synthetic corpus chosen to exercise what the codec actually branches on: predictor effectiveness, palette and colour-cache eligibility, the separate alpha plane, and the transform's response to smooth versus high-frequency content. Sizes run from 128x128 to 3840x2160 so scaling behaviour is visible. It also verifies that every backend encodes byte-identically, which is the property the whole per-target build story exists to protect. build-native-bench-libs.sh supplies the two native shared objects it compares against. The scalar one exists to separate the cost of a sandbox or a transpiler from the cost of simply not having SIMD.

tools: add a backend tag matrix test

2026-09-20T12:08:29Z

commit d163123589e9e2ed6dde377b66d7668b80616ac5 parent edcd2eab9a587add7df9a97628e7cf7f7420f411 Author: Jack Mordaunt Date: Sun, 20 Sep 2026 09:08:29 -0300 tools: add a backend tag matrix test Builds and tests every supported tag combination, and asserts that disabling all backends fails the build rather than producing a binary that only errors at run time. Tag-guarded files rot silently: the wasm backend was excluded from every build by an implicit GOARCH constraint and the suite still passed, because the dynamic backend covered for it.

webp: select the backend at build time

2026-09-20T12:08:13Z

commit edcd2eab9a587add7df9a97628e7cf7f7420f411 parent 6854c67d68b354ffd4fae62df8df00b2ab6f427d Author: Jack Mordaunt Date: Sun, 20 Sep 2026 09:08:13 -0300 webp: select the backend at build time Every binary previously linked every backend. Which ones are compiled in is now a build tag choice, so a consumer pays only for what they use: (default) dynamic, then wasm 5.7 MiB -tags transpiled dynamic, then transpiled 3.4 MiB -tags nowasm dynamic only 1.8 MiB -tags nodynamic wasm only 5.7 MiB -tags nodynamic,transpiled transpiled only 3.3 MiB -tags nodynamic,nowasm build error The transpiled tag displaces wasm rather than adding to it, so no build carries both pure-Go fallbacks. Preference lives in two explicit slots filled by the tag-guarded files, rather than emerging from init order, and only one file ever assigns the fallback slot, so exclusivity is enforced by the tags. Selection is now cached instead of re-probed on every call, and Backend() reports which backend is live. That matters because the dynamic backend binds whatever libwebp the host provides, which may be a different version than the one this package was built against and may legitimately encode to different bytes than the other backends. The backend file is named for wazero, not wasm: wasm is a valid GOARCH, so a _wasm.go suffix applies an implicit GOARCH=wasm constraint and silently drops the backend from every ordinary build. The previous backend.go was dead code, referenced by nothing.

lib/wasm: add a WebAssembly backend

2026-09-20T12:08:13Z

commit 6854c67d68b354ffd4fae62df8df00b2ab6f427d parent 4dd33a3a91ea730d6e6721b58508be1d7a6991df Author: Jack Mordaunt Date: Sun, 20 Sep 2026 09:08:13 -0300 lib/wasm: add a WebAssembly backend Runs libwebp as a sandboxed wasm module under wazero. One embedded artifact serves every platform, so unlike the transpiled backend there is no per-target output to regenerate and keep in sync, and a bug in the codec traps inside the sandbox instead of corrupting the Go heap. The module is instantiated per call rather than pooled. Instantiation costs ~120us against millisecond-to-second codec work, and a pooled instance would retain its high-water mark forever: linear memory only ever grows, so one 3840x2160 lossless encode leaves an instance holding 213 MiB. CompileBytes is exported so several modules can be compared in one process. Compiling the module costs ~120ms, so it is deferred behind a sync.Once and paid only on first real use. Requires Go 1.25 via wazero; the module already targets a newer toolchain.

tools: add wasm build scripts for zig and emscripten

2026-09-20T12:07:56Z

commit 4dd33a3a91ea730d6e6721b58508be1d7a6991df parent d95f8e51faa5bfc46e88f564ae4cf0966f9c4f17 Author: Jack Mordaunt Date: Sun, 20 Sep 2026 09:07:56 -0300 tools: add wasm build scripts for zig and emscripten Both produce a wasm32 reactor module that wazero can run, from the vendored c-lib source, as a single artifact for every GOOS/GOARCH. build-wasm-emscripten.sh builds the shipped module. Emscripten is required for SIMD specifically: libwebp has no simd128 DSP backend, so its SSE2 and SSE4.1 kernels are only reachable through Emscripten's SSE-to-simd128 compat headers, which wasi-sdk and zig do not ship and clang's own x86 headers refuse to provide off-x86. It also needs -DEMSCRIPTEN, because libwebp gates its compile-time CPU feature reporting on that bare macro rather than on __EMSCRIPTEN__; without it the kernels are compiled but never dispatched. build-wasm.sh is a zig-only scalar build, kept as the lighter-weight toolchain and as a control when comparing. Both write comparison artifacts into bench/lib; installing the shipped module is explicit via INSTALL=1.

lib/dynamic/webp: load the shared object exactly once

2026-09-20T12:07:56Z

commit d95f8e51faa5bfc46e88f564ae4cf0966f9c4f17 parent b61bbe314a666f0d4cf4acb35d0ab4ae8ef62bdb Author: Jack Mordaunt Date: Sun, 20 Sep 2026 09:07:56 -0300 lib/dynamic/webp: load the shared object exactly once Init returned early only when the library had already loaded. On failure _libwebp stayed zero, so the next call retried, and since Encode and Decode called Init per call, a process without libwebp installed paid two failed dlopens on every single operation — precisely the machines that fall through to a pure-Go backend.

all: refactor imports to v2

2025-11-25T21:19:47Z

commit b61bbe314a666f0d4cf4acb35d0ab4ae8ef62bdb parent 584e42fc5f8fe3650d01cd1ce3e73acc27d5f91d Author: Jack Mordaunt Date: Tue, 25 Nov 2025 18:19:47 -0300 all: refactor imports to v2 This was a silly oversight. All the imports need to be updated to match the module name, which now includes a v2 suffix.

mod: fix module name

2025-11-18T11:22:10Z

commit 584e42fc5f8fe3650d01cd1ce3e73acc27d5f91d parent 1e4e98598b7e5206a43c8445b820cb1dfe774e85 Author: Jack Mordaunt Date: Tue, 18 Nov 2025 08:22:10 -0300 mod: fix module name Major version changes need to reflect that version in the module name. Signed-off-by: Jack Mordaunt

.ignore: ignore blobs in editor

2025-10-19T20:57:03Z

commit 1e4e98598b7e5206a43c8445b820cb1dfe774e85 parent 9c9445ba17a5b642305b42884aee015d48dad0de Author: Jack Mordaunt Date: Sun, 19 Oct 2025 17:57:03 -0300 .ignore: ignore blobs in editor Ignore blobs and C files since we mostly care about the Go source.

lib/{dynamic,transpiled}: fix quality param

2025-10-19T20:56:10Z

commit 9c9445ba17a5b642305b42884aee015d48dad0de parent 5089b45b2813af6723b8133fe90a73ee95ca1290 Author: Jack Mordaunt Date: Sun, 19 Oct 2025 17:56:10 -0300 lib/{dynamic,transpiled}: fix quality param I thought the C api wanted the quality in the range 0-1 because they picked float as the numeric type. Turns out they actually just cast it to int and assume the range 0-100. Thanks to JP Hastings-Edrei for calling this out!

lib/dynamic/webp: [Linux] remove lossless hack

2024-07-10T08:51:29Z

commit 5089b45b2813af6723b8133fe90a73ee95ca1290 parent c47859304e78ea6698ba3c3d33a0a29c999a9a4b Author: Jack Mordaunt Date: Wed, 10 Jul 2024 16:51:29 +0800 lib/dynamic/webp: [Linux] remove lossless hack After some testing it seems that we can use float arguments just fine. Signed-off-by: Jack Mordaunt

go.*: update deps

2024-07-10T07:04:12Z

commit c47859304e78ea6698ba3c3d33a0a29c999a9a4b parent 734eccbd13a1146ed1887b459c3e797315657b5b Author: Jack Mordaunt Date: Wed, 10 Jul 2024 15:04:12 +0800 go.*: update deps Signed-off-by: Jack Mordaunt

go.*: update deps

2024-03-26T06:58:32Z

commit 734eccbd13a1146ed1887b459c3e797315657b5b parent a9212ed0cd264c0a33ed49ac1a072b3d79b72121 Author: Jack Mordaunt Date: Tue, 26 Mar 2024 14:58:32 +0800 go.*: update deps Signed-off-by: Jack Mordaunt

lib/dynamic: eagerly check init functions

2024-03-26T06:55:57Z

commit a9212ed0cd264c0a33ed49ac1a072b3d79b72121 parent 8979a905cefe51e1defa798ca9ad938bff72c326 Author: Jack Mordaunt Date: Tue, 26 Mar 2024 14:55:57 +0800 lib/dynamic: eagerly check init functions For early error reporting. Signed-off-by: Jack Mordaunt

lib/dynamic: nil guard function pointers

2024-03-26T06:48:56Z

commit 8979a905cefe51e1defa798ca9ad938bff72c326 parent 66763fde44257f5366633282ba6124b166f250a5 Author: Jack Mordaunt Date: Tue, 26 Mar 2024 14:48:56 +0800 lib/dynamic: nil guard function pointers In the case of bad init we can avoid panicking. Signed-off-by: Jack Mordaunt

lib/dynamic/webp: actually use library name param

2024-03-07T07:41:58Z

commit 66763fde44257f5366633282ba6124b166f250a5 parent 75195ca41678d8ff1d21aafe03b0dec5bdd03f7e Author: Jack Mordaunt Date: Thu, 7 Mar 2024 15:41:58 +0800 lib/dynamic/webp: actually use library name param Signed-off-by: Jack Mordaunt

lib/dynamic/webp: allow generic naming

2024-03-07T07:24:39Z

commit 75195ca41678d8ff1d21aafe03b0dec5bdd03f7e parent 3bdb8c52844faed6a2cef991282bb0a2dfaaca1b Author: Jack Mordaunt Date: Thu, 7 Mar 2024 15:24:39 +0800 lib/dynamic/webp: allow generic naming Allow for arch delineated naming and generic naming. Signed-off-by: Jack Mordaunt

webp: benchmark decode

2024-03-07T07:17:13Z

commit 3bdb8c52844faed6a2cef991282bb0a2dfaaca1b parent 9c8b739f420eb05dfa848dabfe89309d5af9344b Author: Jack Mordaunt Date: Thu, 7 Mar 2024 15:17:13 +0800 webp: benchmark decode Benchmark stdlib webp vs transpiled vs dynamic. Signed-off-by: Jack Mordaunt

tools/compile-dynamic-libraries: fixup blobs path

2024-02-29T07:39:06Z

commit 9c8b739f420eb05dfa848dabfe89309d5af9344b parent 3d2240a7f2d0d2062666873e2dee82a7a6cf1937 Author: Jack Mordaunt Date: Thu, 29 Feb 2024 15:39:06 +0800 tools/compile-dynamic-libraries: fixup blobs path Signed-off-by: Jack Mordaunt

lib/dynamic: allow multi arch support

2024-02-29T07:37:40Z

commit 3d2240a7f2d0d2062666873e2dee82a7a6cf1937 parent 156db145c43d831d7b9b5378e02b23503ebd35bd Author: Jack Mordaunt Date: Thu, 29 Feb 2024 15:37:40 +0800 lib/dynamic: allow multi arch support Let an application be distributed with an amd64 and arm64 shared object. Signed-off-by: Jack Mordaunt

webp.Decode: attempt to use shared library if available

2024-02-29T07:14:37Z

commit 156db145c43d831d7b9b5378e02b23503ebd35bd parent 0bdc61d161006630b031bee57a0c9034712bd323 Author: Jack Mordaunt Date: Thu, 29 Feb 2024 15:14:37 +0800 webp.Decode: attempt to use shared library if available Mirror the Encode logic, where we try to use a shared object if one is available. Signed-off-by: Jack Mordaunt

lib/transpiled: add arm64 copies for darwin and windows

2024-02-28T05:20:08Z

commit 0bdc61d161006630b031bee57a0c9034712bd323 parent d1b56df68fbb9e61fc94392054c99d1acc4a8d93 Author: Jack Mordaunt Date: Wed, 28 Feb 2024 13:20:08 +0800 lib/transpiled: add arm64 copies for darwin and windows Given that the only difference between architectures has proven to be use of inline assembly for SIMD acceleration, we can simply copy the transpiled output for arm64 variants. Ideally, we would setup a full cross compile for these artifacts, though that is proving to be a total pain. If this causes issues we can revert. Signed-off-by: Jack Mordaunt

lib/dynamic: dry up dlopen definitions

2024-02-28T03:16:23Z

commit d1b56df68fbb9e61fc94392054c99d1acc4a8d93 parent 5f5890417f1837a7cd5ec20a6b170f454c147e5c Author: Jack Mordaunt Date: Wed, 28 Feb 2024 11:16:23 +0800 lib/dynamic: dry up dlopen definitions They don't change per architecture, so we can fold them together. Signed-off-by: Jack Mordaunt

Add support for dynamic linux/arm64

2024-02-08T16:41:04Z

commit 5f5890417f1837a7cd5ec20a6b170f454c147e5c parent 44e7b984c4d0ac98a00e2f9ca6fdb77551b6337e Author: Milan Nikolic Date: Thu, 8 Feb 2024 17:41:04 +0100 Add support for dynamic linux/arm64

tools(transpile): ensure all compiler names match

2024-01-03T11:04:18Z

commit 44e7b984c4d0ac98a00e2f9ca6fdb77551b6337e parent 91d4abc35e3ec60ee61f6ba7456d18c7c6bc8451 Author: Jack Mordaunt Date: Wed, 3 Jan 2024 19:04:18 +0800 tools(transpile): ensure all compiler names match If the configure CC doesn't match the environment CC ccgo fails to work. Signed-off-by: Jack Mordaunt

all: use NRGBA images (not pre-multiplied)

2024-01-03T10:10:14Z

commit 91d4abc35e3ec60ee61f6ba7456d18c7c6bc8451 parent 55f202710aba7f22fc3fd31da03651c1d48fe100 Author: Jack Mordaunt Date: Wed, 3 Jan 2024 18:10:14 +0800 all: use NRGBA images (not pre-multiplied) This is what WebP is expecting. Signed-off-by: Jack Mordaunt

docs: reflect current use

2024-01-03T10:09:10Z

commit 55f202710aba7f22fc3fd31da03651c1d48fe100 parent e4a3608cbc8d9fe44478cce306710d3e07b7a1e7 Author: Jack Mordaunt Date: Wed, 3 Jan 2024 18:09:10 +0800 docs: reflect current use The package will use any shared object if available and fallback to transpiled. Signed-off-by: Jack Mordaunt

webp: use new lib API

2024-01-03T08:37:45Z

commit e4a3608cbc8d9fe44478cce306710d3e07b7a1e7 parent 82741fa8693af21b7c819edd160275b50302b60e Author: Jack Mordaunt Date: Wed, 3 Jan 2024 16:37:45 +0800 webp: use new lib API Signed-off-by: Jack Mordaunt

webp: use webp decoder

2024-01-03T08:37:13Z

commit 82741fa8693af21b7c819edd160275b50302b60e parent 8b9f86c3cf35e5319469a98f6a6a0a707757aadd Author: Jack Mordaunt Date: Wed, 3 Jan 2024 16:37:13 +0800 webp: use webp decoder Instead of the stdlib decoder. Signed-off-by: Jack Mordaunt

lib/dynamic: add decode and fix lossy panic with cgo

2024-01-03T08:31:37Z

commit 8b9f86c3cf35e5319469a98f6a6a0a707757aadd parent 61bcd809df050051345098e0c46884ccc52c8c97 Author: Jack Mordaunt Date: Wed, 3 Jan 2024 16:31:37 +0800 lib/dynamic: add decode and fix lossy panic with cgo Due a bug in purego, we cannot use float parameters while cgo is enabled on linux. When cgo is enabled, we force the use of lossless encoding. Signed-off-by: Jack Mordaunt

lib/transpiled: add decode and fix asm panic

2024-01-03T08:30:32Z

commit 61bcd809df050051345098e0c46884ccc52c8c97 parent 55f31ea7f7298c3aeb2a7b051784a7ff313f0d35 Author: Jack Mordaunt Date: Wed, 3 Jan 2024 16:30:32 +0800 lib/transpiled: add decode and fix asm panic Signed-off-by: Jack Mordaunt

lib/common: capture unsafe logic

2024-01-03T08:26:56Z

commit 55f31ea7f7298c3aeb2a7b051784a7ff313f0d35 parent 40afa63773a71fe1e7f88fd6e0676ac4ce26324b Author: Jack Mordaunt Date: Wed, 3 Jan 2024 16:26:56 +0800 lib/common: capture unsafe logic Signed-off-by: Jack Mordaunt

cmd: handle flags properly

2024-01-03T08:26:17Z

commit 40afa63773a71fe1e7f88fd6e0676ac4ce26324b parent 41dac6f1dc7e1dd9044068167f7f0bedb9dc5d5a Author: Jack Mordaunt Date: Wed, 3 Jan 2024 16:26:17 +0800 cmd: handle flags properly Set the lossless and quality options. Signed-off-by: Jack Mordaunt

webp: [fuzz] ensure output is decodable

2024-01-02T00:41:33Z

commit 41dac6f1dc7e1dd9044068167f7f0bedb9dc5d5a parent 98a093fa7067145893f248ab2e4c8f083659c566 Author: Jack Mordaunt Date: Tue, 2 Jan 2024 08:41:33 +0800 webp: [fuzz] ensure output is decodable This provides a sanity check on the encoded image. Signed-off-by: Jack Mordaunt

all: provide multiple backends

2023-12-21T04:23:44Z

commit 98a093fa7067145893f248ab2e4c8f083659c566 parent cea42bec9134033fdddcfa1d4c452959bb4cb08a Author: Jack Mordaunt Date: Thu, 21 Dec 2023 12:23:44 +0800 all: provide multiple backends This commit makes a major structural change to the package. If shared objects are avialable (dll, so, dylib) they will be used. Otherwise, transpiled will be used. Signed-off-by: Jack Mordaunt

webp: add lossless test case

2023-10-19T05:56:53Z

commit cea42bec9134033fdddcfa1d4c452959bb4cb08a parent c653dffa3b536524690f5f3fa4aa5980308b8154 Author: Jack Mordaunt Date: Thu, 19 Oct 2023 13:56:53 +0800 webp: add lossless test case Signed-off-by: Jack Mordaunt

webp: randomize pixel colors during fuzz

2023-10-19T05:56:28Z

commit c653dffa3b536524690f5f3fa4aa5980308b8154 parent eafaf278cfd93252ee33e0cddfa9385b93654c21 Author: Jack Mordaunt Date: Thu, 19 Oct 2023 13:56:28 +0800 webp: randomize pixel colors during fuzz Signed-off-by: Jack Mordaunt

webp/encode: use memory pinning

2023-10-19T05:55:12Z

commit eafaf278cfd93252ee33e0cddfa9385b93654c21 parent 515e5ffe955010e2d37bd28886d73f12ae59cc57 Author: Jack Mordaunt Date: Thu, 19 Oct 2023 13:55:12 +0800 webp/encode: use memory pinning This commit uses memory pinning instead struct field to hold the uintptr. This is the more correct way to do things. Signed-off-by: Jack Mordaunt

webp/encode: fuzz test

2023-10-19T08:45:45Z

commit 515e5ffe955010e2d37bd28886d73f12ae59cc57 parent 9881b32bd1cda8b6dac428b03eadedeb276baadf Author: Jack Mordaunt Date: Thu, 19 Oct 2023 16:45:45 +0800 webp/encode: fuzz test Signed-off-by: Jack Mordaunt

webp/encode: [perf] special-case *RGBA to avoid conversion penalty

2023-10-19T08:44:40Z

commit 9881b32bd1cda8b6dac428b03eadedeb276baadf parent 2c27660c379f4dc04d54852fccc8f883b0fdef72 Author: Jack Mordaunt Date: Thu, 19 Oct 2023 16:44:40 +0800 webp/encode: [perf] special-case *RGBA to avoid conversion penalty Signed-off-by: Jack Mordaunt

webp: add basic encode test

2023-10-19T08:09:53Z

commit 2c27660c379f4dc04d54852fccc8f883b0fdef72 parent 5b89d308e57cde1ac64afa7cb259ec89c9013e96 Author: Jack Mordaunt Date: Thu, 19 Oct 2023 16:09:53 +0800 webp: add basic encode test This is a smoke test to make sure we can produce a valid webp and not error along the way. Signed-off-by: Jack Mordaunt

webp/encode: fix use of out pointer

2023-10-19T08:08:19Z

commit 5b89d308e57cde1ac64afa7cb259ec89c9013e96 parent 6e91d0e9e45341b48781fb3ff4cccecee6770af0 Author: Jack Mordaunt Date: Thu, 19 Oct 2023 16:08:19 +0800 webp/encode: fix use of out pointer First, we must use a uintptr so we don't truncate the memory address. Second, we must declare the uintptr in a place the runtime will not optimize away. Signed-off-by: Jack Mordaunt

cmd: show help at command level

2023-10-19T03:41:15Z

commit 6e91d0e9e45341b48781fb3ff4cccecee6770af0 parent ed19491a4e06bcb31bf2e877975727d017f554ed Author: Jack Mordaunt Date: Thu, 19 Oct 2023 11:41:15 +0800 cmd: show help at command level Be a bit more useful at the high level, telling the user what commands are available. Signed-off-by: Jack Mordaunt

mod: update deps and require Go 1.21

2023-10-19T03:35:22Z

commit ed19491a4e06bcb31bf2e877975727d017f554ed parent 3a3b6556d77cf0aa3539356dac169eb65edca55e Author: Jack Mordaunt Date: Thu, 19 Oct 2023 11:35:22 +0800 mod: update deps and require Go 1.21 Signed-off-by: Jack Mordaunt

webp(encode): use libc for bool -> int32 conversion

2023-01-24T06:30:09Z

commit 3a3b6556d77cf0aa3539356dac169eb65edca55e parent 04855e6c1cf5a06864b6e62493e047bcd4af5510 Author: Jack Mordaunt Date: Tue, 24 Jan 2023 14:30:09 +0800 webp(encode): use libc for bool -> int32 conversion Signed-off-by: Jack Mordaunt

webp(encode): disable lossless option due to error

2023-01-24T06:27:17Z

commit 04855e6c1cf5a06864b6e62493e047bcd4af5510 parent 48a2487ef9e1a6b1bb6373a8ec693da54ed243d0 Author: Jack Mordaunt Date: Tue, 24 Jan 2023 14:27:17 +0800 webp(encode): disable lossless option due to error Signed-off-by: Jack Mordaunt

deps: upgrade

2023-01-24T06:10:50Z

commit 48a2487ef9e1a6b1bb6373a8ec693da54ed243d0 parent 67544289ce45a7aecbac7d2cad9d69884a28bca4 Author: Jack Mordaunt Date: Tue, 24 Jan 2023 14:10:50 +0800 deps: upgrade Signed-off-by: Jack Mordaunt

deps: depend on go 1.19

2023-01-24T06:10:34Z

commit 67544289ce45a7aecbac7d2cad9d69884a28bca4 parent 7437946464cba14d6bb607f6bcb342c2728f5ab6 Author: Jack Mordaunt Date: Tue, 24 Jan 2023 14:10:34 +0800 deps: depend on go 1.19 Signed-off-by: Jack Mordaunt

git: ignore .DS_Store

2023-01-24T06:09:14Z

commit 7437946464cba14d6bb607f6bcb342c2728f5ab6 parent 5253a955293dc9686cd7fdeb068573e8e610b063 Author: Jack Mordaunt Date: Tue, 24 Jan 2023 14:09:14 +0800 git: ignore .DS_Store Signed-off-by: Jack Mordaunt

webp: copy pixel data to unmanaged memory

2022-02-01T11:08:19Z

commit 5253a955293dc9686cd7fdeb068573e8e610b063 parent 6cad32149c38524a6a24a9dd2b08fb64d95eb7fa Author: Jack Mordaunt Date: Tue, 1 Feb 2022 19:08:19 +0800 webp: copy pixel data to unmanaged memory The code was being unsafe by relying on the pixel buffer to remain stable. This is not guaranteed by the Go compiler. Therefore, we copy the data to unmanaged memory instead. Signed-off-by: Jack Mordaunt

webp(encode): close tls to avoid memory leak

2022-01-31T11:46:34Z

commit 6cad32149c38524a6a24a9dd2b08fb64d95eb7fa parent 868dfe7ba157101b308ba4ae90661acbb3486829 Author: Jack Mordaunt Date: Mon, 31 Jan 2022 19:46:34 +0800 webp(encode): close tls to avoid memory leak Signed-off-by: Jack Mordaunt

docs: add context

2022-01-29T11:31:46Z

commit 868dfe7ba157101b308ba4ae90661acbb3486829 parent 09329a8ab82ad1a5948b0115d7d71218c2c6267c Author: Jack Mordaunt Date: Sat, 29 Jan 2022 19:31:46 +0800 docs: add context - update example - explain why this package exists - explain the use of x/image/webp - todo about handling encoding errors Signed-off-by: Jack Mordaunt

webp: free out buffer

2022-01-29T11:31:28Z

commit 09329a8ab82ad1a5948b0115d7d71218c2c6267c parent 8000e873f42d591bd04c69a3479ee4f467eda880 Author: Jack Mordaunt Date: Sat, 29 Jan 2022 19:31:28 +0800 webp: free out buffer Signed-off-by: Jack Mordaunt

webp/cmd: showcase decoding

2022-01-29T11:30:45Z

commit 8000e873f42d591bd04c69a3479ee4f467eda880 parent b2fb224c1f9613d70f27c7ac28a185acabc7901c Author: Jack Mordaunt Date: Sat, 29 Jan 2022 19:30:45 +0800 webp/cmd: showcase decoding Nothing special, since it just defers to x/image/webp. Signed-off-by: Jack Mordaunt

webp: wrap x/image/webp for decoding

2022-01-29T11:27:42Z

commit b2fb224c1f9613d70f27c7ac28a185acabc7901c parent 6be5ab5f797e71adea62b6aec71b9bad343b7cf0 Author: Jack Mordaunt Date: Sat, 29 Jan 2022 19:27:42 +0800 webp: wrap x/image/webp for decoding I attempted to decode with the translated code but C was using inline instructions which is not supported. However, we can still offer a convenient decoding interface by wrapping x/image/webp thus creating a single unified package that can encode and decode. Signed-off-by: Jack Mordaunt

webp: bifurcate encoding and decoding logic

2022-01-29T09:35:34Z

commit 6be5ab5f797e71adea62b6aec71b9bad343b7cf0 parent cb025bcd4e24edd37e5bb7687c15c9576a3fde9c Author: Jack Mordaunt Date: Sat, 29 Jan 2022 17:35:34 +0800 webp: bifurcate encoding and decoding logic Signed-off-by: Jack Mordaunt

webp: functional options

2022-01-29T09:32:14Z

commit cb025bcd4e24edd37e5bb7687c15c9576a3fde9c parent dbf7df92d89cfa1a3ca545de90bc1bd7cb3bbf47 Author: Jack Mordaunt Date: Sat, 29 Jan 2022 17:32:14 +0800 webp: functional options Configure encoding with functional options. Signed-off-by: Jack Mordaunt

doc: include original source license

2022-01-26T05:44:44Z

commit dbf7df92d89cfa1a3ca545de90bc1bd7cb3bbf47 parent 22c5efa9218599cff6fb7e616e78e44196dd0cab Author: Jack Mordaunt Date: Wed, 26 Jan 2022 13:44:44 +0800 doc: include original source license Signed-off-by: Jack Mordaunt

doc: update usage to reflect new structure

2022-01-26T06:04:29Z

commit 22c5efa9218599cff6fb7e616e78e44196dd0cab parent 6bc1e4d456a0d8d5f68ab979ba46c212a75884cb Author: Jack Mordaunt Date: Wed, 26 Jan 2022 14:04:29 +0800 doc: update usage to reflect new structure Signed-off-by: Jack Mordaunt

cmd: move test image

2022-01-26T06:03:58Z

commit 6bc1e4d456a0d8d5f68ab979ba46c212a75884cb parent b9bc1b74b5bb6254beace6ad9b27414eb8f14bd6 Author: Jack Mordaunt Date: Wed, 26 Jan 2022 14:03:58 +0800 cmd: move test image Signed-off-by: Jack Mordaunt

webp: improve docs and handle invalid quality settings

2022-01-25T18:21:41Z

commit b9bc1b74b5bb6254beace6ad9b27414eb8f14bd6 parent 656734b171d252f78a17f215075cf95fdd694456 Author: Chris Waldon Date: Tue, 25 Jan 2022 13:21:41 -0500 webp: improve docs and handle invalid quality settings Signed-off-by: Chris Waldon

docs: update README with current progress

2022-01-25T18:21:17Z

commit 656734b171d252f78a17f215075cf95fdd694456 parent 0cec354450a887af7a4eae02782b0968e30ec0ff Author: Chris Waldon Date: Tue, 25 Jan 2022 13:21:17 -0500 docs: update README with current progress Signed-off-by: Chris Waldon

restructure package

2022-01-25T17:52:41Z

commit 0cec354450a887af7a4eae02782b0968e30ec0ff parent d27df34bac65eeeab98a67c3a14a94d74b7a1767 Author: Jack Mordaunt Date: Wed, 26 Jan 2022 01:52:41 +0800 restructure package c-lib: source C package lib: raw transpiled Go webp: porcelain Go package cmd: cli util exercising api Signed-off-by: Jack Mordaunt

feat: improve code generation process

2022-01-25T17:13:35Z

commit d27df34bac65eeeab98a67c3a14a94d74b7a1767 parent 4162a9daeb226b849103bedab702f7f38c429d40 Author: Chris Waldon Date: Tue, 25 Jan 2022 12:13:35 -0500 feat: improve code generation process Signed-off-by: Chris Waldon

Squashed 'c-lib/' content from commit 6f496540

2022-01-25T17:05:45Z

commit 604b2e25eeee8dd6ed0cb0a2ad77607be5e16180 Author: Chris Waldon Date: Tue, 25 Jan 2022 12:05:45 -0500 Squashed 'c-lib/' content from commit 6f496540 git-subtree-dir: c-lib git-subtree-split: 6f496540241b2390df42e06458acbd2cae9b4351

Merge commit '604b2e25eeee8dd6ed0cb0a2ad77607be5e16180' as 'c-lib'

2022-01-25T17:05:45Z

commit 4162a9daeb226b849103bedab702f7f38c429d40 parent e90b46f14d96460408f122499b2a8a78ca1e9032 Author: Chris Waldon Date: Tue, 25 Jan 2022 12:05:45 -0500 Merge commit '604b2e25eeee8dd6ed0cb0a2ad77607be5e16180' as 'c-lib'

feat: enable regenerating the Go code with go generate

2022-01-25T16:55:26Z

commit e90b46f14d96460408f122499b2a8a78ca1e9032 parent 20a84951fc7c5df4eecb97cfd2fa199f7e1bd95d Author: Chris Waldon Date: Tue, 25 Jan 2022 11:55:26 -0500 feat: enable regenerating the Go code with go generate Signed-off-by: Chris Waldon

feat: convert input image to RGBA automatically

2022-01-25T16:11:17Z

commit 20a84951fc7c5df4eecb97cfd2fa199f7e1bd95d parent b410cf6d30e70ae5057fc0698422c1f0b5e53858 Author: Chris Waldon Date: Tue, 25 Jan 2022 11:11:17 -0500 feat: convert input image to RGBA automatically Signed-off-by: Chris Waldon

webp: add flags to control quality

2022-01-25T16:47:23Z

commit b410cf6d30e70ae5057fc0698422c1f0b5e53858 parent 69259af52c815d64657b5c38782f08681c57c6e6 Author: Jack Mordaunt Date: Wed, 26 Jan 2022 00:47:23 +0800 webp: add flags to control quality Signed-off-by: Jack Mordaunt

webp: upgrade deps

2022-01-25T16:21:30Z

commit 69259af52c815d64657b5c38782f08681c57c6e6 parent 1af6a17bd21050902fb88e6b134a0fa9273c73b2 Author: Jack Mordaunt Date: Wed, 26 Jan 2022 00:21:30 +0800 webp: upgrade deps Bump libc to include bsearch and regenerate libwebp. Signed-off-by: Jack Mordaunt

doc: todos

2022-01-25T14:02:15Z

commit 1af6a17bd21050902fb88e6b134a0fa9273c73b2 parent c6720b22ffa412fd2e74c76f2b8ebf21bb372d7f Author: Jack Mordaunt Date: Tue, 25 Jan 2022 22:02:15 +0800 doc: todos - high level tests for various image formats - porcelain wrapper package to integrate with image.Decode - build script for recompiling from upstream Signed-off-by: Jack Mordaunt

docs: attribution to Chris Waldon

2022-01-25T13:59:04Z

commit c6720b22ffa412fd2e74c76f2b8ebf21bb372d7f parent fe80f51a22e3ccdf2b85f859fa603f0ecc41cb95 Author: Jack Mordaunt Date: Tue, 25 Jan 2022 21:59:04 +0800 docs: attribution to Chris Waldon Signed-off-by: Jack Mordaunt

webp: accept generic color spaces

2022-01-25T13:50:45Z

commit fe80f51a22e3ccdf2b85f859fa603f0ecc41cb95 parent 254ea970859cbc90d79c6d7814217bfa22952ed7 Author: Jack Mordaunt Date: Tue, 25 Jan 2022 21:50:45 +0800 webp: accept generic color spaces Signed-off-by: Jack Mordaunt

webp: doc fundamental assumptions

2022-01-25T11:26:14Z

commit 254ea970859cbc90d79c6d7814217bfa22952ed7 parent 3bdb494d680194db381a9af72985f142bfbe5d9d Author: Jack Mordaunt Date: Tue, 25 Jan 2022 19:26:14 +0800 webp: doc fundamental assumptions Add context to this implementation. Signed-off-by: Jack Mordaunt

webp: inline data conversion

2022-01-25T11:25:38Z

commit 3bdb494d680194db381a9af72985f142bfbe5d9d parent fbd765f1fb8df873b11a1fadc29fb2dbab2ac1fa Author: Jack Mordaunt Date: Tue, 25 Jan 2022 19:25:38 +0800 webp: inline data conversion Avoid allocating an extra slice of i32 and just consume them inline. Signed-off-by: Jack Mordaunt

webp: initial working sketch

2022-01-25T02:08:12Z

commit fbd765f1fb8df873b11a1fadc29fb2dbab2ac1fa Author: Jack Mordaunt Date: Tue, 25 Jan 2022 10:08:12 +0800 webp: initial working sketch libwebp.go is generated with gocc and manually fixed up: 1) iterators corrected to use integers as per the C idiom 2) bsearch is implemented (as linear search stub) since it is missing from modernc.org/libc The sample program executes and generates a webp from a source image. Follow the happy path and experience the joy of transliterated zombified raw memory programming in Go! Signed-off-by: Jack Mordaunt