- Add `-msimd128` to flags to actually enable WebAssembly SIMD
when performing SIMD detection. It's currently required in
addition to `-msse*` / `-mfpu=neon` flags which only perform
translation of corresponding intrinsics to Wasm SIMD ones.
See a discussion at emscripten-core/emscripten#12714 for
automating this and making easier in the future.
- Remove compilation branch that prevented definitions of
`WEBP_USE_SSE` and `WEBP_USE_NEON` on Emscripten even when
SIMD support was detected at compile-time.
- Add an implementation of `VP8GetCPUInfo` for Emscripten which
uses static `WEBP_USE_*` flags to determine if a corresponding
SIMD instruction is supported. This is because Wasm doesn't
have proper feature detection (yet) and requires making separate
build for SIMD version anyway.
Change-Id: I77592081b91fd0e4cbc9242f5600ce905184f506
The offset *can* be negative, but the sanitizer reports strange
address behaviour when row_offset is unsigned size_t.
For safety, use int64_t instead (probably overkill. int32_t is probably ok).
Change-Id: I1bd424bfdb5447b3839f40679581d6bdea075320
After ParseAnimationFrame() calls StoreFrame(), check if StoreFrame() reads
more than anmf_payload_size bytes from dmux->mem_. Treat that as PARSE_ERROR.
Change-Id: I0d03885c19d32792af78de7bed1a944ca01f1dc6
with functions that can legitimately fail when under memory pressure the
fuzzer should exit gracefully rather than abort().
+ add some more error detail to output
Bug: chromium:1140448
Change-Id: I1a8582a939e0a5b2b8631c95c0464658c99063e2
this was only used in debug builds, the build should be fast enough in
either case.
https://docs.microsoft.com/en-us/cpp/build/reference/gm-enable-minimal-rebuild?view=vs-2019
/Gm is deprecated. It may not trigger a build for certain kinds of
header file changes. You may safely remove this option from your
projects. To improve build times, we recommend you use precompiled
headers and incremental and parallel build options instead.
Change-Id: I8e3c0e7cc82e10bd1d2b0904d290fe4e050ebe8b
with WebPReplaceTransparentPixels() function signature:
src\enc\picture_tools_enc.c(86): warning C4028: formal parameter 1
different from declaration
Change-Id: I0140d61b0dfebcbb4189707e8f2f4b1af802a4d7
this provides stronger synchronization when pthreads are available as
was done in 'd77bf512 add WEBP_DSP_INIT / WEBP_DSP_INIT_FUNC' for the
other init functions.
Change-Id: I2ffe4e24454d276c2411ece34dca38d23d4756d5
The output was always 99dB because the lossless pipeline is not
modifying the 'picture'. Changing that is not that simple because
near_lossless impacts both VP8ApplyNearLossless() and
ApplyPredictFilter(); the latter cannot be applied as is to the input
and thus the final modified 'picture' cannot be easily retrieved
without decoding the encoded bitstream. Hence ReadWebP() is called in
cwebp.c on the encoded bitstream kept in memory to get the correct
distortion.
However -get_psnr returns a different distortion than get_disto for
lossy encoding configurations because cwebp loads the source as YUV
while get_disto directly reads it as RGB without conversion loss.
Change-Id: I5c32cf8f89eb137973dc7eebda747682d921b8e2
Fix another pessimization found by the pingo image compressor.
Refactoring is necessary to make LZ77 computation
common to cache or no-cache analysis.
Slower by 1.7x instead of 2x
Change-Id: I396701ea6e88543dbfe9471eb552877f6c8ce1e3
qmin / qmax are now using the pad[] spot at the end of the struct,
and we don't need to bump the ABI major number.
Change-Id: I41adcaf1600b29a5a05c9fe380bfd977cf425124
keep the minimum, but recommend the latest so we don't need to update
this in the future.
BUG=webp:463
Change-Id: I0615039323d3c77684c6be2e890514f6973cf535
remove EMSCRIPTEN_GENERATE_BITCODE_STATIC_LIBRARIES, this option is only
supported with the deprecated fastcomp backend; the wasm version will
begin to throw an error if it's used. 1.39.12 already fails to build when
using this option.
+ fix a typo
BUG=webp:463
Change-Id: I7175df4d5b2b6cb6aaf20eb41063c09c03b9b69a
this was not giving a good alpha value, making the method 5/6 a little
blurrier than method 4 (!).
Change-Id: I69b9890dea21499c1af1753e87d9f7adf8b433de
This is particularly useful for multi-pass search (but not only),
to prevent the search from going over or below a reasonable threshold.
E.g.: 'cwebp -qrange 50 80 ...' will prevent any unreasonable degradation.
new cwebp option: -qrange min max
Change-Id: I59f394533535fc20b6996bc0895f4301476d5eff
when building a dll based libwebp include the dsp private symbols that
WebPUnmultiplyARGB requires
Change-Id: I7cf7da0b20d6cf6740219c8562380926a0abd93c
(cherry picked from commit cf047e8347)
