kc3-lang/libjpeg-turbo/simd/nasm
Branch :
Log
| Author | Commit | Date | CI | Message |
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5e27ca23 | 2025-09-19 14:21:49 | x86: Reformat NASM code to improve readability (and simplify the checkstyle script) | |
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7e45654c | 2024-03-04 18:10:16 | Merge branch 'main' into dev | |
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3202feb0 | 2024-02-29 16:10:20 | x86-64 SIMD: Support CET if C compiler enables it - Detect at configure time, via the __CET__ C preprocessor macro, whether the C compiler will include either indirect branch tracking (IBT) or shadow stack support, and define a NASM macro (__CET__) if so. - Modify the x86-64 SIMD code so that it includes appropriate endbr64 instructions (to support IBT) and an appropriate .note.gnu.property section (to support both IBT and shadow stack) when __CET__ is defined. Closes #350 | |
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13355475 | 2024-02-29 12:18:49 | x86 SIMD: Capitalize all instruction-like macros (to improve code readability) | |
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e69dd40c | 2024-01-23 13:26:41 | Reorganize source to make things easier to find - Move all libjpeg documentation, except for README.ijg, into the doc/ subdirectory. - Move the TurboJPEG C API documentation from doc/html/ into doc/turbojpeg/. - Move all C source code and headers into a src/ subdirectory. - Move turbojpeg-jni.c into the java/ subdirectory. Referring to #226, there is no ideal solution to this problem. A semantically ideal solution would have involved placing all source code, including the SIMD and Java source code, under src/ (or perhaps placing C library source code under lib/ and C test program source code under test/), all header files under include/, and all documentation under doc/. However: - To me it makes more sense to have separate top-level directories for each language, since the SIMD extensions and the Java API are technically optional features. src/ now contains only the code that is relevant to the core C API libraries and associated programs. - I didn't want to bury the java/ and simd/ directories or add a level of depth to them, since both directories already contain source code that is 3-4 levels deep. - I would prefer not to separate the header files from the C source code, because: 1. It would be disruptive. libjpeg and libjpeg-turbo have historically placed C source code and headers in the same directory, and people who are familiar with both projects (self included) are used to looking for the headers in the same directory as the C source code. 2. In terms of how the headers are used internally in libjpeg-turbo, the distinction between public and private headers is a bit fuzzy. - It didn't make sense to separate the test source code from the library source code, since there is not a clear distinction in some cases. (For instance, the IJG image I/O functions are used by cjpeg and djpeg as well as by the TurboJPEG API.) This solution is minimally disruptive, since it keeps all C source code and headers together and keeps java/ and simd/ as top-level directories. It is a bit awkward, because java/ and simd/ technically contain source code, even though they are not under src/. However, other solutions would have been more awkward for different reasons. Closes #226 | |
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7b844bfd | 2023-07-28 11:46:10 | x86-64 SIMD: Use std stack frame/prologue/epilogue This allows debuggers and profilers to reliably capture backtraces from within the x86-64 SIMD functions. In places where rbp was previously used to access temporary variables (after stack alignment), we now use r15 and save/restore it accordingly. The total amount of work is approximately the same, because the previous code pushed the pre-alignment stack pointer to the aligned stack. The new prologue and epilogue actually have fewer instructions. Also note that the {un}collect_args macros now use rbp instead of rax to access arguments passed on the stack, so we save a few instructions there as well. Based on: https://github.com/alk/libjpeg-turbo/commit/debcc7c3b436467aea8d02c66a514c5099d0ad37 Closes #707 Closes #708 | |
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cd342acf | 2020-10-27 16:42:14 | Merge branch 'master' into dev | |
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d27b935a | 2020-10-27 15:04:39 | Consistify formatting to simplify checkstyle The checkstyle script was hastily developed prior to libjpeg-turbo 2.0 beta1, so it has a lot of exceptions and is thus prone to false negatives. This commit eliminates some of those exceptions. | |
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f60b6dd3 | 2019-11-12 17:42:39 | Remove vestigial jpeg_nbits_table.inc Not needed since 087c29e07f7533ec82fd7eb1dafc84c29e7870ec | |
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bbedb4b5 | 2019-11-05 15:43:21 | Merge branch 'master' into dev |