mirror of
https://github.com/libjpeg-turbo/libjpeg-turbo
synced 2025-03-28 21:13:18 +00:00
e69dd40c07
- 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
161 lines
4.5 KiB
C
161 lines
4.5 KiB
C
/*
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* jccolor-neon.c - colorspace conversion (Arm Neon)
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*
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* Copyright (C) 2020, Arm Limited. All Rights Reserved.
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* Copyright (C) 2020, 2024, D. R. Commander. All Rights Reserved.
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*/
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#define JPEG_INTERNALS
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#include "../../src/jinclude.h"
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#include "../../src/jpeglib.h"
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#include "../../src/jsimd.h"
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#include "../../src/jdct.h"
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#include "../../src/jsimddct.h"
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#include "../jsimd.h"
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#include "align.h"
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#include "neon-compat.h"
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#include <arm_neon.h>
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/* RGB -> YCbCr conversion constants */
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#define F_0_298 19595
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#define F_0_587 38470
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#define F_0_113 7471
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#define F_0_168 11059
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#define F_0_331 21709
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#define F_0_500 32768
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#define F_0_418 27439
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#define F_0_081 5329
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ALIGN(16) static const uint16_t jsimd_rgb_ycc_neon_consts[] = {
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F_0_298, F_0_587, F_0_113, F_0_168,
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F_0_331, F_0_500, F_0_418, F_0_081
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};
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/* Include inline routines for colorspace extensions. */
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#if defined(__aarch64__) || defined(_M_ARM64)
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#include "aarch64/jccolext-neon.c"
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#else
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#include "aarch32/jccolext-neon.c"
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#endif
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#undef RGB_RED
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#undef RGB_GREEN
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#undef RGB_BLUE
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#undef RGB_PIXELSIZE
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#define RGB_RED EXT_RGB_RED
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#define RGB_GREEN EXT_RGB_GREEN
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#define RGB_BLUE EXT_RGB_BLUE
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#define RGB_PIXELSIZE EXT_RGB_PIXELSIZE
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#define jsimd_rgb_ycc_convert_neon jsimd_extrgb_ycc_convert_neon
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#if defined(__aarch64__) || defined(_M_ARM64)
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#include "aarch64/jccolext-neon.c"
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#else
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#include "aarch32/jccolext-neon.c"
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#endif
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#undef RGB_RED
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#undef RGB_GREEN
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#undef RGB_BLUE
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#undef RGB_PIXELSIZE
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#undef jsimd_rgb_ycc_convert_neon
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#define RGB_RED EXT_RGBX_RED
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#define RGB_GREEN EXT_RGBX_GREEN
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#define RGB_BLUE EXT_RGBX_BLUE
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#define RGB_PIXELSIZE EXT_RGBX_PIXELSIZE
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#define jsimd_rgb_ycc_convert_neon jsimd_extrgbx_ycc_convert_neon
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#if defined(__aarch64__) || defined(_M_ARM64)
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#include "aarch64/jccolext-neon.c"
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#else
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#include "aarch32/jccolext-neon.c"
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#endif
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#undef RGB_RED
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#undef RGB_GREEN
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#undef RGB_BLUE
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#undef RGB_PIXELSIZE
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#undef jsimd_rgb_ycc_convert_neon
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#define RGB_RED EXT_BGR_RED
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#define RGB_GREEN EXT_BGR_GREEN
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#define RGB_BLUE EXT_BGR_BLUE
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#define RGB_PIXELSIZE EXT_BGR_PIXELSIZE
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#define jsimd_rgb_ycc_convert_neon jsimd_extbgr_ycc_convert_neon
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#if defined(__aarch64__) || defined(_M_ARM64)
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#include "aarch64/jccolext-neon.c"
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#else
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#include "aarch32/jccolext-neon.c"
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#endif
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#undef RGB_RED
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#undef RGB_GREEN
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#undef RGB_BLUE
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#undef RGB_PIXELSIZE
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#undef jsimd_rgb_ycc_convert_neon
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#define RGB_RED EXT_BGRX_RED
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#define RGB_GREEN EXT_BGRX_GREEN
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#define RGB_BLUE EXT_BGRX_BLUE
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#define RGB_PIXELSIZE EXT_BGRX_PIXELSIZE
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#define jsimd_rgb_ycc_convert_neon jsimd_extbgrx_ycc_convert_neon
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#if defined(__aarch64__) || defined(_M_ARM64)
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#include "aarch64/jccolext-neon.c"
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#else
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#include "aarch32/jccolext-neon.c"
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#endif
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#undef RGB_RED
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#undef RGB_GREEN
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#undef RGB_BLUE
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#undef RGB_PIXELSIZE
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#undef jsimd_rgb_ycc_convert_neon
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#define RGB_RED EXT_XBGR_RED
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#define RGB_GREEN EXT_XBGR_GREEN
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#define RGB_BLUE EXT_XBGR_BLUE
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#define RGB_PIXELSIZE EXT_XBGR_PIXELSIZE
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#define jsimd_rgb_ycc_convert_neon jsimd_extxbgr_ycc_convert_neon
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#if defined(__aarch64__) || defined(_M_ARM64)
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#include "aarch64/jccolext-neon.c"
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#else
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#include "aarch32/jccolext-neon.c"
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#endif
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#undef RGB_RED
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#undef RGB_GREEN
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#undef RGB_BLUE
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#undef RGB_PIXELSIZE
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#undef jsimd_rgb_ycc_convert_neon
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#define RGB_RED EXT_XRGB_RED
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#define RGB_GREEN EXT_XRGB_GREEN
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#define RGB_BLUE EXT_XRGB_BLUE
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#define RGB_PIXELSIZE EXT_XRGB_PIXELSIZE
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#define jsimd_rgb_ycc_convert_neon jsimd_extxrgb_ycc_convert_neon
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#if defined(__aarch64__) || defined(_M_ARM64)
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#include "aarch64/jccolext-neon.c"
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#else
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#include "aarch32/jccolext-neon.c"
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#endif
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#undef RGB_RED
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#undef RGB_GREEN
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#undef RGB_BLUE
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#undef RGB_PIXELSIZE
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#undef jsimd_rgb_ycc_convert_neon
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