kc3-lang/libjpeg-turbo/simd/jsimd_x86_64.c
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Hash : d729f4da
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Date : 2014-08-23T15:47:51
ARM NEON SIMD support for YCC-to-RGB565 conversion, and optimizations to the existing YCC-to-RGB conversion code: ----- https://github.com/ssvb/libjpeg-turbo/commit/aee36252be20054afce371a92406fc66ba6627b5.patch From aee36252be20054afce371a92406fc66ba6627b5 Mon Sep 17 00:00:00 2001 From: Siarhei Siamashka <siarhei.siamashka@gmail.com> Date: Wed, 13 Aug 2014 03:50:22 +0300 Subject: [PATCH] ARM: Faster NEON yuv->rgb conversion for Krait and Cortex-A15 The older code was developed and tested only on ARM Cortex-A8 and ARM Cortex-A9. Tuning it for newer ARM processors can introduce some speed-up (up to 20%). The performance of the inner loop (conversion of 8 pixels) improves from ~27 cycles down to ~22 cycles on Qualcomm Krait 300, and from ~20 cycles down to ~18 cycles on ARM Cortex-A15. The performance remains exactly the same on ARM Cortex-A7 (~58 cycles), ARM Cortex-A8 (~25 cycles) and ARM Cortex-A9 (~30 cycles) processors. Also use larger indentation in the source code for separating two independent instruction streams. ----- https://github.com/ssvb/libjpeg-turbo/commit/a5efdbf22ce9c1acd4b14a353cec863c2c57557e.patch From a5efdbf22ce9c1acd4b14a353cec863c2c57557e Mon Sep 17 00:00:00 2001 From: Siarhei Siamashka <siarhei.siamashka@gmail.com> Date: Wed, 13 Aug 2014 07:23:09 +0300 Subject: [PATCH] ARM: NEON optimized yuv->rgb565 conversion The performance of the inner loop (conversion of 8 pixels): * ARM Cortex-A7: ~55 cycles * ARM Cortex-A8: ~28 cycles * ARM Cortex-A9: ~32 cycles * ARM Cortex-A15: ~20 cycles * Qualcomm Krait: ~24 cycles Based on the Linaro rgb565 patch from https://sourceforge.net/p/libjpeg-turbo/patches/24/ but implements better instructions scheduling. git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@1385 632fc199-4ca6-4c93-a231-07263d6284db
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simd/jsimd_x86_64.c
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/* * jsimd_x86_64.c * * Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB * Copyright 2009-2011, 2014 D. R. Commander * * Based on the x86 SIMD extension for IJG JPEG library, * Copyright (C) 1999-2006, MIYASAKA Masaru. * For conditions of distribution and use, see copyright notice in jsimdext.inc * * This file contains the interface between the "normal" portions * of the library and the SIMD implementations when running on a * 64-bit x86 architecture. */ #define JPEG_INTERNALS #include "../jinclude.h" #include "../jpeglib.h" #include "../jsimd.h" #include "../jdct.h" #include "../jsimddct.h" #include "jsimd.h" /* * In the PIC cases, we have no guarantee that constants will keep * their alignment. This macro allows us to verify it at runtime. */ #define IS_ALIGNED(ptr, order) (((size_t)ptr & ((1 << order) - 1)) == 0) #define IS_ALIGNED_SSE(ptr) (IS_ALIGNED(ptr, 4)) /* 16 byte alignment */ GLOBAL(int) jsimd_can_rgb_ycc (void) { /* The code is optimised for these values only */ if (BITS_IN_JSAMPLE != 8) return 0; if (sizeof(JDIMENSION) != 4) return 0; if ((RGB_PIXELSIZE != 3) && (RGB_PIXELSIZE != 4)) return 0; if (!IS_ALIGNED_SSE(jconst_rgb_ycc_convert_sse2)) return 0; return 1; } GLOBAL(int) jsimd_can_rgb_gray (void) { /* The code is optimised for these values only */ if (BITS_IN_JSAMPLE != 8) return 0; if (sizeof(JDIMENSION) != 4) return 0; if ((RGB_PIXELSIZE != 3) && (RGB_PIXELSIZE != 4)) return 0; if (!IS_ALIGNED_SSE(jconst_rgb_gray_convert_sse2)) return 0; return 1; } GLOBAL(int) jsimd_can_ycc_rgb (void) { /* The code is optimised for these values only */ if (BITS_IN_JSAMPLE != 8) return 0; if (sizeof(JDIMENSION) != 4) return 0; if ((RGB_PIXELSIZE != 3) && (RGB_PIXELSIZE != 4)) return 0; if (!IS_ALIGNED_SSE(jconst_ycc_rgb_convert_sse2)) return 0; return 1; } GLOBAL(int) jsimd_can_ycc_rgb565 (void) { return 0; } GLOBAL(void) jsimd_rgb_ycc_convert (j_compress_ptr cinfo, JSAMPARRAY input_buf, JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows) { void (*sse2fct)(JDIMENSION, JSAMPARRAY, JSAMPIMAGE, JDIMENSION, int); switch(cinfo->in_color_space) { case JCS_EXT_RGB: sse2fct=jsimd_extrgb_ycc_convert_sse2; break; case JCS_EXT_RGBX: case JCS_EXT_RGBA: sse2fct=jsimd_extrgbx_ycc_convert_sse2; break; case JCS_EXT_BGR: sse2fct=jsimd_extbgr_ycc_convert_sse2; break; case JCS_EXT_BGRX: case JCS_EXT_BGRA: sse2fct=jsimd_extbgrx_ycc_convert_sse2; break; case JCS_EXT_XBGR: case JCS_EXT_ABGR: sse2fct=jsimd_extxbgr_ycc_convert_sse2; break; case JCS_EXT_XRGB: case JCS_EXT_ARGB: sse2fct=jsimd_extxrgb_ycc_convert_sse2; break; default: sse2fct=jsimd_rgb_ycc_convert_sse2; break; } sse2fct(cinfo->image_width, input_buf, output_buf, output_row, num_rows); } GLOBAL(void) jsimd_rgb_gray_convert (j_compress_ptr cinfo, JSAMPARRAY input_buf, JSAMPIMAGE output_buf, JDIMENSION output_row, int num_rows) { void (*sse2fct)(JDIMENSION, JSAMPARRAY, JSAMPIMAGE, JDIMENSION, int); switch(cinfo->in_color_space) { case JCS_EXT_RGB: sse2fct=jsimd_extrgb_gray_convert_sse2; break; case JCS_EXT_RGBX: case JCS_EXT_RGBA: sse2fct=jsimd_extrgbx_gray_convert_sse2; break; case JCS_EXT_BGR: sse2fct=jsimd_extbgr_gray_convert_sse2; break; case JCS_EXT_BGRX: case JCS_EXT_BGRA: sse2fct=jsimd_extbgrx_gray_convert_sse2; break; case JCS_EXT_XBGR: case JCS_EXT_ABGR: sse2fct=jsimd_extxbgr_gray_convert_sse2; break; case JCS_EXT_XRGB: case JCS_EXT_ARGB: sse2fct=jsimd_extxrgb_gray_convert_sse2; break; default: sse2fct=jsimd_rgb_gray_convert_sse2; break; } sse2fct(cinfo->image_width, input_buf, output_buf, output_row, num_rows); } GLOBAL(void) jsimd_ycc_rgb_convert (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows) { void (*sse2fct)(JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY, int); switch(cinfo->out_color_space) { case JCS_EXT_RGB: sse2fct=jsimd_ycc_extrgb_convert_sse2; break; case JCS_EXT_RGBX: case JCS_EXT_RGBA: sse2fct=jsimd_ycc_extrgbx_convert_sse2; break; case JCS_EXT_BGR: sse2fct=jsimd_ycc_extbgr_convert_sse2; break; case JCS_EXT_BGRX: case JCS_EXT_BGRA: sse2fct=jsimd_ycc_extbgrx_convert_sse2; break; case JCS_EXT_XBGR: case JCS_EXT_ABGR: sse2fct=jsimd_ycc_extxbgr_convert_sse2; break; case JCS_EXT_XRGB: case JCS_EXT_ARGB: sse2fct=jsimd_ycc_extxrgb_convert_sse2; break; default: sse2fct=jsimd_ycc_rgb_convert_sse2; break; } sse2fct(cinfo->output_width, input_buf, input_row, output_buf, num_rows); } GLOBAL(void) jsimd_ycc_rgb565_convert (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION input_row, JSAMPARRAY output_buf, int num_rows) { } GLOBAL(int) jsimd_can_h2v2_downsample (void) { /* The code is optimised for these values only */ if (BITS_IN_JSAMPLE != 8) return 0; if (sizeof(JDIMENSION) != 4) return 0; return 1; } GLOBAL(int) jsimd_can_h2v1_downsample (void) { /* The code is optimised for these values only */ if (BITS_IN_JSAMPLE != 8) return 0; if (sizeof(JDIMENSION) != 4) return 0; return 1; } GLOBAL(void) jsimd_h2v2_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, JSAMPARRAY input_data, JSAMPARRAY output_data) { jsimd_h2v2_downsample_sse2(cinfo->image_width, cinfo->max_v_samp_factor, compptr->v_samp_factor, compptr->width_in_blocks, input_data, output_data); } GLOBAL(void) jsimd_h2v1_downsample (j_compress_ptr cinfo, jpeg_component_info * compptr, JSAMPARRAY input_data, JSAMPARRAY output_data) { jsimd_h2v1_downsample_sse2(cinfo->image_width, cinfo->max_v_samp_factor, compptr->v_samp_factor, compptr->width_in_blocks, input_data, output_data); } GLOBAL(int) jsimd_can_h2v2_upsample (void) { /* The code is optimised for these values only */ if (BITS_IN_JSAMPLE != 8) return 0; if (sizeof(JDIMENSION) != 4) return 0; return 1; } GLOBAL(int) jsimd_can_h2v1_upsample (void) { /* The code is optimised for these values only */ if (BITS_IN_JSAMPLE != 8) return 0; if (sizeof(JDIMENSION) != 4) return 0; return 1; } GLOBAL(void) jsimd_h2v2_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) { jsimd_h2v2_upsample_sse2(cinfo->max_v_samp_factor, cinfo->output_width, input_data, output_data_ptr); } GLOBAL(void) jsimd_h2v1_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) { jsimd_h2v1_upsample_sse2(cinfo->max_v_samp_factor, cinfo->output_width, input_data, output_data_ptr); } GLOBAL(int) jsimd_can_h2v2_fancy_upsample (void) { /* The code is optimised for these values only */ if (BITS_IN_JSAMPLE != 8) return 0; if (sizeof(JDIMENSION) != 4) return 0; if (!IS_ALIGNED_SSE(jconst_fancy_upsample_sse2)) return 0; return 1; } GLOBAL(int) jsimd_can_h2v1_fancy_upsample (void) { /* The code is optimised for these values only */ if (BITS_IN_JSAMPLE != 8) return 0; if (sizeof(JDIMENSION) != 4) return 0; if (!IS_ALIGNED_SSE(jconst_fancy_upsample_sse2)) return 0; return 1; } GLOBAL(void) jsimd_h2v2_fancy_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) { jsimd_h2v2_fancy_upsample_sse2(cinfo->max_v_samp_factor, compptr->downsampled_width, input_data, output_data_ptr); } GLOBAL(void) jsimd_h2v1_fancy_upsample (j_decompress_ptr cinfo, jpeg_component_info * compptr, JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr) { jsimd_h2v1_fancy_upsample_sse2(cinfo->max_v_samp_factor, compptr->downsampled_width, input_data, output_data_ptr); } GLOBAL(int) jsimd_can_h2v2_merged_upsample (void) { /* The code is optimised for these values only */ if (BITS_IN_JSAMPLE != 8) return 0; if (sizeof(JDIMENSION) != 4) return 0; if (!IS_ALIGNED_SSE(jconst_merged_upsample_sse2)) return 0; return 1; } GLOBAL(int) jsimd_can_h2v1_merged_upsample (void) { /* The code is optimised for these values only */ if (BITS_IN_JSAMPLE != 8) return 0; if (sizeof(JDIMENSION) != 4) return 0; if (!IS_ALIGNED_SSE(jconst_merged_upsample_sse2)) return 0; return 1; } GLOBAL(void) jsimd_h2v2_merged_upsample (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf) { void (*sse2fct)(JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY); switch(cinfo->out_color_space) { case JCS_EXT_RGB: sse2fct=jsimd_h2v2_extrgb_merged_upsample_sse2; break; case JCS_EXT_RGBX: case JCS_EXT_RGBA: sse2fct=jsimd_h2v2_extrgbx_merged_upsample_sse2; break; case JCS_EXT_BGR: sse2fct=jsimd_h2v2_extbgr_merged_upsample_sse2; break; case JCS_EXT_BGRX: case JCS_EXT_BGRA: sse2fct=jsimd_h2v2_extbgrx_merged_upsample_sse2; break; case JCS_EXT_XBGR: case JCS_EXT_ABGR: sse2fct=jsimd_h2v2_extxbgr_merged_upsample_sse2; break; case JCS_EXT_XRGB: case JCS_EXT_ARGB: sse2fct=jsimd_h2v2_extxrgb_merged_upsample_sse2; break; default: sse2fct=jsimd_h2v2_merged_upsample_sse2; break; } sse2fct(cinfo->output_width, input_buf, in_row_group_ctr, output_buf); } GLOBAL(void) jsimd_h2v1_merged_upsample (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf) { void (*sse2fct)(JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY); 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) { /* 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; return 1; } GLOBAL(int) jsimd_can_convsamp_float (void) { /* 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; return 1; } 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) { /* The code is optimised for these values only */ if (DCTSIZE != 8) return 0; if (sizeof(DCTELEM) != 2) return 0; if (!IS_ALIGNED_SSE(jconst_fdct_islow_sse2)) return 0; return 1; } GLOBAL(int) jsimd_can_fdct_ifast (void) { /* The code is optimised for these values only */ if (DCTSIZE != 8) return 0; if (sizeof(DCTELEM) != 2) return 0; if (!IS_ALIGNED_SSE(jconst_fdct_ifast_sse2)) return 0; return 1; } GLOBAL(int) jsimd_can_fdct_float (void) { /* The code is optimised for these values only */ if (DCTSIZE != 8) return 0; if (sizeof(FAST_FLOAT) != 4) return 0; if (!IS_ALIGNED_SSE(jconst_fdct_float_sse)) return 0; return 1; } 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) { /* 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; return 1; } GLOBAL(int) jsimd_can_quantize_float (void) { /* 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; return 1; } 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) { /* 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 (!IS_ALIGNED_SSE(jconst_idct_red_sse2)) return 0; return 1; } GLOBAL(int) jsimd_can_idct_4x4 (void) { /* 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 (!IS_ALIGNED_SSE(jconst_idct_red_sse2)) return 0; return 1; } 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) { /* 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 (!IS_ALIGNED_SSE(jconst_idct_islow_sse2)) return 0; return 1; } GLOBAL(int) jsimd_can_idct_ifast (void) { /* 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 (!IS_ALIGNED_SSE(jconst_idct_ifast_sse2)) return 0; return 1; } GLOBAL(int) jsimd_can_idct_float (void) { 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 (!IS_ALIGNED_SSE(jconst_idct_float_sse2)) return 0; return 1; } 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); }