123f7258a8
The IJG convention is to format copyright notices as: Copyright (C) YYYY, Owner. We try to maintain this convention for any code that is part of the libjpeg API library (with the exception of preserving the copyright notices from Cendio's code verbatim, since those predate libjpeg-turbo.) Note that the phrase "All Rights Reserved" is no longer necessary, since all Buenos Aires Convention signatories signed onto the Berne Convention in 2000. However, our convention is to retain this phrase for any files that have a self-contained copyright header but to leave it off of any files that refer to another file for conditions of distribution and use. For instance, all of the non-SIMD files in the libjpeg API library refer to README.ijg, and the copyright message in that file contains "All Rights Reserved", so it is unnecessary to add it to the individual files. The TurboJPEG code retains my preferred formatting convention for copyright notices, which is based on that of VirtualGL (where the TurboJPEG API originated.)
888 lines
20 KiB
C
888 lines
20 KiB
C
/*
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* jsimd_x86_64.c
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*
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* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
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* Copyright (C) 2009-2011, 2014, 2016, D. R. Commander.
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* Copyright (C) 2015, Matthieu Darbois.
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*
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* Based on the x86 SIMD extension for IJG JPEG library,
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* Copyright (C) 1999-2006, MIYASAKA Masaru.
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* For conditions of distribution and use, see copyright notice in jsimdext.inc
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*
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* This file contains the interface between the "normal" portions
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* of the library and the SIMD implementations when running on a
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* 64-bit x86 architecture.
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*/
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#define JPEG_INTERNALS
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#include "../jinclude.h"
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#include "../jpeglib.h"
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#include "../jsimd.h"
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#include "../jdct.h"
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#include "../jsimddct.h"
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#include "jsimd.h"
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/*
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* In the PIC cases, we have no guarantee that constants will keep
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* their alignment. This macro allows us to verify it at runtime.
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*/
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#define IS_ALIGNED(ptr, order) (((size_t)ptr & ((1 << order) - 1)) == 0)
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#define IS_ALIGNED_SSE(ptr) (IS_ALIGNED(ptr, 4)) /* 16 byte alignment */
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static unsigned int simd_support = ~0;
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static unsigned int simd_huffman = 1;
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/*
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* Check what SIMD accelerations are supported.
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*
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* FIXME: This code is racy under a multi-threaded environment.
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*/
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LOCAL(void)
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init_simd (void)
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{
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char *env = NULL;
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if (simd_support != ~0U)
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return;
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simd_support = JSIMD_SSE2 | JSIMD_SSE;
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/* Force different settings through environment variables */
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env = getenv("JSIMD_FORCENONE");
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if ((env != NULL) && (strcmp(env, "1") == 0))
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simd_support = 0;
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env = getenv("JSIMD_NOHUFFENC");
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if ((env != NULL) && (strcmp(env, "1") == 0))
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simd_huffman = 0;
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}
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GLOBAL(int)
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jsimd_can_rgb_ycc (void)
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{
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init_simd();
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/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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if ((RGB_PIXELSIZE != 3) && (RGB_PIXELSIZE != 4))
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return 0;
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if ((simd_support & JSIMD_SSE2) &&
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IS_ALIGNED_SSE(jconst_rgb_ycc_convert_sse2))
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return 1;
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return 0;
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}
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GLOBAL(int)
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jsimd_can_rgb_gray (void)
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{
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init_simd();
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/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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if ((RGB_PIXELSIZE != 3) && (RGB_PIXELSIZE != 4))
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return 0;
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if ((simd_support & JSIMD_SSE2) &&
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IS_ALIGNED_SSE(jconst_rgb_gray_convert_sse2))
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return 1;
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return 0;
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}
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GLOBAL(int)
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jsimd_can_ycc_rgb (void)
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{
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init_simd();
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/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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if ((RGB_PIXELSIZE != 3) && (RGB_PIXELSIZE != 4))
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return 0;
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if ((simd_support & JSIMD_SSE2) &&
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IS_ALIGNED_SSE(jconst_ycc_rgb_convert_sse2))
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return 1;
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return 0;
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}
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GLOBAL(int)
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jsimd_can_ycc_rgb565 (void)
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{
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return 0;
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}
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GLOBAL(void)
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jsimd_rgb_ycc_convert (j_compress_ptr cinfo,
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JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
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JDIMENSION output_row, int num_rows)
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{
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void (*sse2fct)(JDIMENSION, JSAMPARRAY, JSAMPIMAGE, JDIMENSION, int);
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switch(cinfo->in_color_space) {
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case JCS_EXT_RGB:
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sse2fct=jsimd_extrgb_ycc_convert_sse2;
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break;
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case JCS_EXT_RGBX:
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case JCS_EXT_RGBA:
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sse2fct=jsimd_extrgbx_ycc_convert_sse2;
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break;
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case JCS_EXT_BGR:
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sse2fct=jsimd_extbgr_ycc_convert_sse2;
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break;
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case JCS_EXT_BGRX:
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case JCS_EXT_BGRA:
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sse2fct=jsimd_extbgrx_ycc_convert_sse2;
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break;
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case JCS_EXT_XBGR:
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case JCS_EXT_ABGR:
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sse2fct=jsimd_extxbgr_ycc_convert_sse2;
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break;
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case JCS_EXT_XRGB:
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case JCS_EXT_ARGB:
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sse2fct=jsimd_extxrgb_ycc_convert_sse2;
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break;
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default:
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sse2fct=jsimd_rgb_ycc_convert_sse2;
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break;
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}
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sse2fct(cinfo->image_width, input_buf, output_buf, output_row, num_rows);
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}
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GLOBAL(void)
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jsimd_rgb_gray_convert (j_compress_ptr cinfo,
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JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
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JDIMENSION output_row, int num_rows)
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{
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void (*sse2fct)(JDIMENSION, JSAMPARRAY, JSAMPIMAGE, JDIMENSION, int);
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switch(cinfo->in_color_space) {
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case JCS_EXT_RGB:
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sse2fct=jsimd_extrgb_gray_convert_sse2;
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break;
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case JCS_EXT_RGBX:
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case JCS_EXT_RGBA:
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sse2fct=jsimd_extrgbx_gray_convert_sse2;
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break;
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case JCS_EXT_BGR:
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sse2fct=jsimd_extbgr_gray_convert_sse2;
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break;
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case JCS_EXT_BGRX:
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case JCS_EXT_BGRA:
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sse2fct=jsimd_extbgrx_gray_convert_sse2;
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break;
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case JCS_EXT_XBGR:
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case JCS_EXT_ABGR:
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sse2fct=jsimd_extxbgr_gray_convert_sse2;
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break;
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case JCS_EXT_XRGB:
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case JCS_EXT_ARGB:
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sse2fct=jsimd_extxrgb_gray_convert_sse2;
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break;
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default:
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sse2fct=jsimd_rgb_gray_convert_sse2;
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break;
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}
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sse2fct(cinfo->image_width, input_buf, output_buf, output_row, num_rows);
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}
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GLOBAL(void)
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jsimd_ycc_rgb_convert (j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf, JDIMENSION input_row,
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JSAMPARRAY output_buf, int num_rows)
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{
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void (*sse2fct)(JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY, int);
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switch(cinfo->out_color_space) {
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case JCS_EXT_RGB:
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sse2fct=jsimd_ycc_extrgb_convert_sse2;
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break;
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case JCS_EXT_RGBX:
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case JCS_EXT_RGBA:
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sse2fct=jsimd_ycc_extrgbx_convert_sse2;
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break;
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case JCS_EXT_BGR:
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sse2fct=jsimd_ycc_extbgr_convert_sse2;
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break;
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case JCS_EXT_BGRX:
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case JCS_EXT_BGRA:
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sse2fct=jsimd_ycc_extbgrx_convert_sse2;
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break;
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case JCS_EXT_XBGR:
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case JCS_EXT_ABGR:
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sse2fct=jsimd_ycc_extxbgr_convert_sse2;
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break;
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case JCS_EXT_XRGB:
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case JCS_EXT_ARGB:
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sse2fct=jsimd_ycc_extxrgb_convert_sse2;
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break;
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default:
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sse2fct=jsimd_ycc_rgb_convert_sse2;
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break;
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}
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sse2fct(cinfo->output_width, input_buf, input_row, output_buf, num_rows);
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}
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GLOBAL(void)
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jsimd_ycc_rgb565_convert (j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf, JDIMENSION input_row,
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JSAMPARRAY output_buf, int num_rows)
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{
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}
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GLOBAL(int)
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jsimd_can_h2v2_downsample (void)
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{
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init_simd();
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/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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if (simd_support & JSIMD_SSE2)
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return 1;
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return 0;
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}
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GLOBAL(int)
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jsimd_can_h2v1_downsample (void)
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{
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init_simd();
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/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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if (simd_support & JSIMD_SSE2)
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return 1;
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return 0;
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}
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GLOBAL(void)
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jsimd_h2v2_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr,
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JSAMPARRAY input_data, JSAMPARRAY output_data)
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{
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jsimd_h2v2_downsample_sse2(cinfo->image_width, cinfo->max_v_samp_factor,
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compptr->v_samp_factor, compptr->width_in_blocks,
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input_data, output_data);
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}
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GLOBAL(void)
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jsimd_h2v1_downsample (j_compress_ptr cinfo, jpeg_component_info *compptr,
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JSAMPARRAY input_data, JSAMPARRAY output_data)
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{
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jsimd_h2v1_downsample_sse2(cinfo->image_width, cinfo->max_v_samp_factor,
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compptr->v_samp_factor, compptr->width_in_blocks,
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input_data, output_data);
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}
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GLOBAL(int)
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jsimd_can_h2v2_upsample (void)
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{
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init_simd();
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/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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if (simd_support & JSIMD_SSE2)
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return 1;
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return 0;
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}
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GLOBAL(int)
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jsimd_can_h2v1_upsample (void)
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{
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init_simd();
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/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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if (simd_support & JSIMD_SSE2)
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return 1;
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return 0;
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}
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GLOBAL(void)
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jsimd_h2v2_upsample (j_decompress_ptr cinfo,
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jpeg_component_info *compptr,
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JSAMPARRAY input_data,
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JSAMPARRAY *output_data_ptr)
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{
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jsimd_h2v2_upsample_sse2(cinfo->max_v_samp_factor, cinfo->output_width,
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input_data, output_data_ptr);
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}
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GLOBAL(void)
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jsimd_h2v1_upsample (j_decompress_ptr cinfo,
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jpeg_component_info *compptr,
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JSAMPARRAY input_data,
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JSAMPARRAY *output_data_ptr)
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{
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jsimd_h2v1_upsample_sse2(cinfo->max_v_samp_factor, cinfo->output_width,
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input_data, output_data_ptr);
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}
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GLOBAL(int)
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jsimd_can_h2v2_fancy_upsample (void)
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{
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init_simd();
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/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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if ((simd_support & JSIMD_SSE2) &&
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IS_ALIGNED_SSE(jconst_fancy_upsample_sse2))
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return 1;
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return 0;
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}
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GLOBAL(int)
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jsimd_can_h2v1_fancy_upsample (void)
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{
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init_simd();
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/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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if ((simd_support & JSIMD_SSE2) &&
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IS_ALIGNED_SSE(jconst_fancy_upsample_sse2))
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return 1;
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return 0;
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}
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GLOBAL(void)
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jsimd_h2v2_fancy_upsample (j_decompress_ptr cinfo,
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jpeg_component_info *compptr,
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JSAMPARRAY input_data,
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JSAMPARRAY *output_data_ptr)
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{
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jsimd_h2v2_fancy_upsample_sse2(cinfo->max_v_samp_factor,
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compptr->downsampled_width, input_data,
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output_data_ptr);
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}
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GLOBAL(void)
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jsimd_h2v1_fancy_upsample (j_decompress_ptr cinfo,
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jpeg_component_info *compptr,
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JSAMPARRAY input_data,
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JSAMPARRAY *output_data_ptr)
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{
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jsimd_h2v1_fancy_upsample_sse2(cinfo->max_v_samp_factor,
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compptr->downsampled_width, input_data,
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output_data_ptr);
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}
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GLOBAL(int)
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jsimd_can_h2v2_merged_upsample (void)
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{
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init_simd();
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/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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if ((simd_support & JSIMD_SSE2) &&
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IS_ALIGNED_SSE(jconst_merged_upsample_sse2))
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return 1;
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return 0;
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}
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GLOBAL(int)
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jsimd_can_h2v1_merged_upsample (void)
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{
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init_simd();
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/* The code is optimised for these values only */
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if (BITS_IN_JSAMPLE != 8)
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return 0;
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if (sizeof(JDIMENSION) != 4)
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return 0;
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if ((simd_support & JSIMD_SSE2) &&
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IS_ALIGNED_SSE(jconst_merged_upsample_sse2))
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return 1;
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return 0;
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}
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GLOBAL(void)
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jsimd_h2v2_merged_upsample (j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf,
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JDIMENSION in_row_group_ctr,
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JSAMPARRAY output_buf)
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{
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void (*sse2fct)(JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY);
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switch(cinfo->out_color_space) {
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case JCS_EXT_RGB:
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sse2fct=jsimd_h2v2_extrgb_merged_upsample_sse2;
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break;
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case JCS_EXT_RGBX:
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case JCS_EXT_RGBA:
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sse2fct=jsimd_h2v2_extrgbx_merged_upsample_sse2;
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break;
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case JCS_EXT_BGR:
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sse2fct=jsimd_h2v2_extbgr_merged_upsample_sse2;
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break;
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case JCS_EXT_BGRX:
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case JCS_EXT_BGRA:
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sse2fct=jsimd_h2v2_extbgrx_merged_upsample_sse2;
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break;
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case JCS_EXT_XBGR:
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case JCS_EXT_ABGR:
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sse2fct=jsimd_h2v2_extxbgr_merged_upsample_sse2;
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break;
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case JCS_EXT_XRGB:
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case JCS_EXT_ARGB:
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sse2fct=jsimd_h2v2_extxrgb_merged_upsample_sse2;
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break;
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default:
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sse2fct=jsimd_h2v2_merged_upsample_sse2;
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break;
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}
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sse2fct(cinfo->output_width, input_buf, in_row_group_ctr, output_buf);
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}
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GLOBAL(void)
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jsimd_h2v1_merged_upsample (j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf,
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JDIMENSION in_row_group_ctr,
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JSAMPARRAY output_buf)
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{
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void (*sse2fct)(JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY);
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|
switch(cinfo->out_color_space) {
|
|
case JCS_EXT_RGB:
|
|
sse2fct=jsimd_h2v1_extrgb_merged_upsample_sse2;
|
|
break;
|
|
case JCS_EXT_RGBX:
|
|
case JCS_EXT_RGBA:
|
|
sse2fct=jsimd_h2v1_extrgbx_merged_upsample_sse2;
|
|
break;
|
|
case JCS_EXT_BGR:
|
|
sse2fct=jsimd_h2v1_extbgr_merged_upsample_sse2;
|
|
break;
|
|
case JCS_EXT_BGRX:
|
|
case JCS_EXT_BGRA:
|
|
sse2fct=jsimd_h2v1_extbgrx_merged_upsample_sse2;
|
|
break;
|
|
case JCS_EXT_XBGR:
|
|
case JCS_EXT_ABGR:
|
|
sse2fct=jsimd_h2v1_extxbgr_merged_upsample_sse2;
|
|
break;
|
|
case JCS_EXT_XRGB:
|
|
case JCS_EXT_ARGB:
|
|
sse2fct=jsimd_h2v1_extxrgb_merged_upsample_sse2;
|
|
break;
|
|
default:
|
|
sse2fct=jsimd_h2v1_merged_upsample_sse2;
|
|
break;
|
|
}
|
|
|
|
sse2fct(cinfo->output_width, input_buf, in_row_group_ctr, output_buf);
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_convsamp (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
if (sizeof(DCTELEM) != 2)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_SSE2)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_convsamp_float (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
if (sizeof(FAST_FLOAT) != 4)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_SSE2)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_convsamp (JSAMPARRAY sample_data, JDIMENSION start_col,
|
|
DCTELEM *workspace)
|
|
{
|
|
jsimd_convsamp_sse2(sample_data, start_col, workspace);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_convsamp_float (JSAMPARRAY sample_data, JDIMENSION start_col,
|
|
FAST_FLOAT *workspace)
|
|
{
|
|
jsimd_convsamp_float_sse2(sample_data, start_col, workspace);
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_fdct_islow (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(DCTELEM) != 2)
|
|
return 0;
|
|
|
|
if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_fdct_islow_sse2))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_fdct_ifast (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(DCTELEM) != 2)
|
|
return 0;
|
|
|
|
if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_fdct_ifast_sse2))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_fdct_float (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(FAST_FLOAT) != 4)
|
|
return 0;
|
|
|
|
if ((simd_support & JSIMD_SSE) && IS_ALIGNED_SSE(jconst_fdct_float_sse))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_fdct_islow (DCTELEM *data)
|
|
{
|
|
jsimd_fdct_islow_sse2(data);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_fdct_ifast (DCTELEM *data)
|
|
{
|
|
jsimd_fdct_ifast_sse2(data);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_fdct_float (FAST_FLOAT *data)
|
|
{
|
|
jsimd_fdct_float_sse(data);
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_quantize (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JCOEF) != 2)
|
|
return 0;
|
|
if (sizeof(DCTELEM) != 2)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_SSE2)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_quantize_float (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JCOEF) != 2)
|
|
return 0;
|
|
if (sizeof(FAST_FLOAT) != 4)
|
|
return 0;
|
|
|
|
if (simd_support & JSIMD_SSE2)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_quantize (JCOEFPTR coef_block, DCTELEM *divisors,
|
|
DCTELEM *workspace)
|
|
{
|
|
jsimd_quantize_sse2(coef_block, divisors, workspace);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_quantize_float (JCOEFPTR coef_block, FAST_FLOAT *divisors,
|
|
FAST_FLOAT *workspace)
|
|
{
|
|
jsimd_quantize_float_sse2(coef_block, divisors, workspace);
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_idct_2x2 (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JCOEF) != 2)
|
|
return 0;
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
if (sizeof(ISLOW_MULT_TYPE) != 2)
|
|
return 0;
|
|
|
|
if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_red_sse2))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_idct_4x4 (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JCOEF) != 2)
|
|
return 0;
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
if (sizeof(ISLOW_MULT_TYPE) != 2)
|
|
return 0;
|
|
|
|
if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_red_sse2))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_idct_2x2 (j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JCOEFPTR coef_block, JSAMPARRAY output_buf,
|
|
JDIMENSION output_col)
|
|
{
|
|
jsimd_idct_2x2_sse2(compptr->dct_table, coef_block, output_buf, output_col);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_idct_4x4 (j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JCOEFPTR coef_block, JSAMPARRAY output_buf,
|
|
JDIMENSION output_col)
|
|
{
|
|
jsimd_idct_4x4_sse2(compptr->dct_table, coef_block, output_buf, output_col);
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_idct_islow (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JCOEF) != 2)
|
|
return 0;
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
if (sizeof(ISLOW_MULT_TYPE) != 2)
|
|
return 0;
|
|
|
|
if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_islow_sse2))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_idct_ifast (void)
|
|
{
|
|
init_simd();
|
|
|
|
/* The code is optimised for these values only */
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JCOEF) != 2)
|
|
return 0;
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
if (sizeof(IFAST_MULT_TYPE) != 2)
|
|
return 0;
|
|
if (IFAST_SCALE_BITS != 2)
|
|
return 0;
|
|
|
|
if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_ifast_sse2))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_idct_float (void)
|
|
{
|
|
init_simd();
|
|
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JCOEF) != 2)
|
|
return 0;
|
|
if (BITS_IN_JSAMPLE != 8)
|
|
return 0;
|
|
if (sizeof(JDIMENSION) != 4)
|
|
return 0;
|
|
if (sizeof(FAST_FLOAT) != 4)
|
|
return 0;
|
|
if (sizeof(FLOAT_MULT_TYPE) != 4)
|
|
return 0;
|
|
|
|
if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_float_sse2))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_idct_islow (j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JCOEFPTR coef_block, JSAMPARRAY output_buf,
|
|
JDIMENSION output_col)
|
|
{
|
|
jsimd_idct_islow_sse2(compptr->dct_table, coef_block, output_buf,
|
|
output_col);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_idct_ifast (j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JCOEFPTR coef_block, JSAMPARRAY output_buf,
|
|
JDIMENSION output_col)
|
|
{
|
|
jsimd_idct_ifast_sse2(compptr->dct_table, coef_block, output_buf,
|
|
output_col);
|
|
}
|
|
|
|
GLOBAL(void)
|
|
jsimd_idct_float (j_decompress_ptr cinfo, jpeg_component_info *compptr,
|
|
JCOEFPTR coef_block, JSAMPARRAY output_buf,
|
|
JDIMENSION output_col)
|
|
{
|
|
jsimd_idct_float_sse2(compptr->dct_table, coef_block, output_buf,
|
|
output_col);
|
|
}
|
|
|
|
GLOBAL(int)
|
|
jsimd_can_huff_encode_one_block (void)
|
|
{
|
|
init_simd();
|
|
|
|
if (DCTSIZE != 8)
|
|
return 0;
|
|
if (sizeof(JCOEF) != 2)
|
|
return 0;
|
|
|
|
if ((simd_support & JSIMD_SSE2) && simd_huffman &&
|
|
IS_ALIGNED_SSE(jconst_huff_encode_one_block))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
GLOBAL(JOCTET*)
|
|
jsimd_huff_encode_one_block (void *state, JOCTET *buffer, JCOEFPTR block,
|
|
int last_dc_val, c_derived_tbl *dctbl,
|
|
c_derived_tbl *actbl)
|
|
{
|
|
return jsimd_huff_encode_one_block_sse2(state, buffer, block, last_dc_val,
|
|
dctbl, actbl);
|
|
}
|