зеркало из https://github.com/mozilla/gecko-dev.git
545 строки
10 KiB
C
545 строки
10 KiB
C
/*
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* jsimd_arm64.c
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*
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* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
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* Copyright 2009-2011, 2013-2014 D. R. Commander
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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 ARM 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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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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static unsigned int simd_support = ~0;
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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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/*
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* ARMv8 architectures support NEON extensions by default.
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* It is no longer optional as it was with ARMv7.
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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 = 0;
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simd_support |= JSIMD_ARM_NEON;
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/* Force different settings through environment variables */
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env = getenv("JSIMD_FORCENEON");
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if ((env != NULL) && (strcmp(env, "1") == 0))
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simd_support &= JSIMD_ARM_NEON;
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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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}
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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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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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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_ARM_NEON)
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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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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_ARM_NEON)
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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_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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}
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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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}
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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 (*neonfct)(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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neonfct=jsimd_ycc_extrgb_convert_neon;
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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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neonfct=jsimd_ycc_extrgbx_convert_neon;
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break;
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case JCS_EXT_BGR:
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neonfct=jsimd_ycc_extbgr_convert_neon;
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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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neonfct=jsimd_ycc_extbgrx_convert_neon;
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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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neonfct=jsimd_ycc_extxbgr_convert_neon;
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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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neonfct=jsimd_ycc_extxrgb_convert_neon;
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break;
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default:
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neonfct=jsimd_ycc_extrgb_convert_neon;
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break;
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}
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if (simd_support & JSIMD_ARM_NEON)
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neonfct(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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if (simd_support & JSIMD_ARM_NEON)
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jsimd_ycc_rgb565_convert_neon(cinfo->output_width, input_buf, input_row,
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output_buf, num_rows);
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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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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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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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}
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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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}
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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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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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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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}
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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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}
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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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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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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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}
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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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}
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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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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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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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}
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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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}
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GLOBAL(int)
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jsimd_can_convsamp (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(int)
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jsimd_can_convsamp_float (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(void)
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jsimd_convsamp (JSAMPARRAY sample_data, JDIMENSION start_col,
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DCTELEM * workspace)
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{
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}
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GLOBAL(void)
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jsimd_convsamp_float (JSAMPARRAY sample_data, JDIMENSION start_col,
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FAST_FLOAT * workspace)
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{
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}
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GLOBAL(int)
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jsimd_can_fdct_islow (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(int)
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jsimd_can_fdct_ifast (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(int)
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jsimd_can_fdct_float (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(void)
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jsimd_fdct_islow (DCTELEM * data)
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{
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}
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GLOBAL(void)
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jsimd_fdct_ifast (DCTELEM * data)
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{
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}
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GLOBAL(void)
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jsimd_fdct_float (FAST_FLOAT * data)
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{
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}
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GLOBAL(int)
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jsimd_can_quantize (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(int)
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jsimd_can_quantize_float (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(void)
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jsimd_quantize (JCOEFPTR coef_block, DCTELEM * divisors,
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DCTELEM * workspace)
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{
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}
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GLOBAL(void)
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jsimd_quantize_float (JCOEFPTR coef_block, FAST_FLOAT * divisors,
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FAST_FLOAT * workspace)
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{
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}
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GLOBAL(int)
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jsimd_can_idct_2x2 (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 (DCTSIZE != 8)
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return 0;
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if (sizeof(JCOEF) != 2)
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return 0;
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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 (sizeof(ISLOW_MULT_TYPE) != 2)
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return 0;
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if (simd_support & JSIMD_ARM_NEON)
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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_idct_4x4 (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 (DCTSIZE != 8)
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return 0;
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if (sizeof(JCOEF) != 2)
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return 0;
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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 (sizeof(ISLOW_MULT_TYPE) != 2)
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return 0;
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if (simd_support & JSIMD_ARM_NEON)
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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_idct_2x2 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
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JCOEFPTR coef_block, JSAMPARRAY output_buf,
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JDIMENSION output_col)
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{
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if (simd_support & JSIMD_ARM_NEON)
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jsimd_idct_2x2_neon(compptr->dct_table, coef_block, output_buf,
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output_col);
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}
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GLOBAL(void)
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jsimd_idct_4x4 (j_decompress_ptr cinfo, jpeg_component_info * compptr,
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JCOEFPTR coef_block, JSAMPARRAY output_buf,
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JDIMENSION output_col)
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{
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if (simd_support & JSIMD_ARM_NEON)
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jsimd_idct_4x4_neon(compptr->dct_table, coef_block, output_buf,
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output_col);
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}
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GLOBAL(int)
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jsimd_can_idct_islow (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 (DCTSIZE != 8)
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return 0;
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if (sizeof(JCOEF) != 2)
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return 0;
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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 (sizeof(ISLOW_MULT_TYPE) != 2)
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return 0;
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if (simd_support & JSIMD_ARM_NEON)
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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_idct_ifast (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 (DCTSIZE != 8)
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return 0;
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if (sizeof(JCOEF) != 2)
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return 0;
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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 (sizeof(IFAST_MULT_TYPE) != 2)
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return 0;
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if (IFAST_SCALE_BITS != 2)
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return 0;
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if (simd_support & JSIMD_ARM_NEON)
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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_idct_float (void)
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{
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init_simd();
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return 0;
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}
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GLOBAL(void)
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jsimd_idct_islow (j_decompress_ptr cinfo, jpeg_component_info * compptr,
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JCOEFPTR coef_block, JSAMPARRAY output_buf,
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JDIMENSION output_col)
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{
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if (simd_support & JSIMD_ARM_NEON)
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jsimd_idct_islow_neon(compptr->dct_table, coef_block, output_buf,
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output_col);
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}
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GLOBAL(void)
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jsimd_idct_ifast (j_decompress_ptr cinfo, jpeg_component_info * compptr,
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JCOEFPTR coef_block, JSAMPARRAY output_buf,
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JDIMENSION output_col)
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{
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if (simd_support & JSIMD_ARM_NEON)
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jsimd_idct_ifast_neon(compptr->dct_table, coef_block, output_buf,
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output_col);
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}
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GLOBAL(void)
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jsimd_idct_float (j_decompress_ptr cinfo, jpeg_component_info * compptr,
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JCOEFPTR coef_block, JSAMPARRAY output_buf,
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JDIMENSION output_col)
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{
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}
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