mirror of
https://bitbucket.org/CPMADevs/cnq3
synced 2024-11-10 06:31:48 +00:00
fc9465caab
aside from the speed improvements, this also makes for nicer code in the renderer interaction with libjpeg, thanks to mem_dest support etc
887 lines
20 KiB
C
887 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) {
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case JCS_EXT_RGB:
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sse2fct=jsimd_h2v1_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_h2v1_extrgbx_merged_upsample_sse2;
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break;
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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);
|
|
}
|