|  | /* | 
|  | * jsimd_x86_64.c | 
|  | * | 
|  | * Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB | 
|  | * Copyright (C) 2009-2011, 2014, 2016, 2018, D. R. Commander. | 
|  | * Copyright (C) 2015-2016, 2018, Matthieu Darbois. | 
|  | * | 
|  | * 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" | 
|  | #include "jconfigint.h" | 
|  |  | 
|  | #include <stdlib.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 */ | 
|  | #define IS_ALIGNED_AVX(ptr)  (IS_ALIGNED(ptr, 5)) /* 32 byte alignment */ | 
|  |  | 
|  | static unsigned int simd_support = (unsigned int)(~0); | 
|  | static unsigned int simd_huffman = 1; | 
|  |  | 
|  | /* | 
|  | * Check what SIMD accelerations are supported. | 
|  | * | 
|  | * FIXME: This code is racy under a multi-threaded environment. | 
|  | */ | 
|  | LOCAL(void) | 
|  | init_simd(void) | 
|  | { | 
|  | #ifndef NO_GETENV | 
|  | char *env = NULL; | 
|  | #endif | 
|  |  | 
|  | if (simd_support != ~0U) | 
|  | return; | 
|  |  | 
|  | simd_support = jpeg_simd_cpu_support(); | 
|  |  | 
|  | #ifndef NO_GETENV | 
|  | /* Force different settings through environment variables */ | 
|  | env = getenv("JSIMD_FORCESSE2"); | 
|  | if ((env != NULL) && (strcmp(env, "1") == 0)) | 
|  | simd_support &= JSIMD_SSE2; | 
|  | env = getenv("JSIMD_FORCEAVX2"); | 
|  | if ((env != NULL) && (strcmp(env, "1") == 0)) | 
|  | simd_support &= JSIMD_AVX2; | 
|  | env = getenv("JSIMD_FORCENONE"); | 
|  | if ((env != NULL) && (strcmp(env, "1") == 0)) | 
|  | simd_support = 0; | 
|  | env = getenv("JSIMD_NOHUFFENC"); | 
|  | if ((env != NULL) && (strcmp(env, "1") == 0)) | 
|  | simd_huffman = 0; | 
|  | #endif | 
|  | } | 
|  |  | 
|  | GLOBAL(int) | 
|  | jsimd_can_rgb_ycc(void) | 
|  | { | 
|  | init_simd(); | 
|  |  | 
|  | /* 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 ((simd_support & JSIMD_AVX2) && | 
|  | IS_ALIGNED_AVX(jconst_rgb_ycc_convert_avx2)) | 
|  | return 1; | 
|  | if ((simd_support & JSIMD_SSE2) && | 
|  | IS_ALIGNED_SSE(jconst_rgb_ycc_convert_sse2)) | 
|  | return 1; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | GLOBAL(int) | 
|  | jsimd_can_rgb_gray(void) | 
|  | { | 
|  | init_simd(); | 
|  |  | 
|  | /* 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 ((simd_support & JSIMD_AVX2) && | 
|  | IS_ALIGNED_AVX(jconst_rgb_gray_convert_avx2)) | 
|  | return 1; | 
|  | if ((simd_support & JSIMD_SSE2) && | 
|  | IS_ALIGNED_SSE(jconst_rgb_gray_convert_sse2)) | 
|  | return 1; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | GLOBAL(int) | 
|  | jsimd_can_ycc_rgb(void) | 
|  | { | 
|  | init_simd(); | 
|  |  | 
|  | /* 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 ((simd_support & JSIMD_AVX2) && | 
|  | IS_ALIGNED_AVX(jconst_ycc_rgb_convert_avx2)) | 
|  | return 1; | 
|  | if ((simd_support & JSIMD_SSE2) && | 
|  | IS_ALIGNED_SSE(jconst_ycc_rgb_convert_sse2)) | 
|  | return 1; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | 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 (*avx2fct) (JDIMENSION, JSAMPARRAY, JSAMPIMAGE, JDIMENSION, int); | 
|  | void (*sse2fct) (JDIMENSION, JSAMPARRAY, JSAMPIMAGE, JDIMENSION, int); | 
|  |  | 
|  | switch (cinfo->in_color_space) { | 
|  | case JCS_EXT_RGB: | 
|  | avx2fct = jsimd_extrgb_ycc_convert_avx2; | 
|  | sse2fct = jsimd_extrgb_ycc_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_RGBX: | 
|  | case JCS_EXT_RGBA: | 
|  | avx2fct = jsimd_extrgbx_ycc_convert_avx2; | 
|  | sse2fct = jsimd_extrgbx_ycc_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_BGR: | 
|  | avx2fct = jsimd_extbgr_ycc_convert_avx2; | 
|  | sse2fct = jsimd_extbgr_ycc_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_BGRX: | 
|  | case JCS_EXT_BGRA: | 
|  | avx2fct = jsimd_extbgrx_ycc_convert_avx2; | 
|  | sse2fct = jsimd_extbgrx_ycc_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_XBGR: | 
|  | case JCS_EXT_ABGR: | 
|  | avx2fct = jsimd_extxbgr_ycc_convert_avx2; | 
|  | sse2fct = jsimd_extxbgr_ycc_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_XRGB: | 
|  | case JCS_EXT_ARGB: | 
|  | avx2fct = jsimd_extxrgb_ycc_convert_avx2; | 
|  | sse2fct = jsimd_extxrgb_ycc_convert_sse2; | 
|  | break; | 
|  | default: | 
|  | avx2fct = jsimd_rgb_ycc_convert_avx2; | 
|  | sse2fct = jsimd_rgb_ycc_convert_sse2; | 
|  | break; | 
|  | } | 
|  |  | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | avx2fct(cinfo->image_width, input_buf, output_buf, output_row, num_rows); | 
|  | else | 
|  | 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 (*avx2fct) (JDIMENSION, JSAMPARRAY, JSAMPIMAGE, JDIMENSION, int); | 
|  | void (*sse2fct) (JDIMENSION, JSAMPARRAY, JSAMPIMAGE, JDIMENSION, int); | 
|  |  | 
|  | switch (cinfo->in_color_space) { | 
|  | case JCS_EXT_RGB: | 
|  | avx2fct = jsimd_extrgb_gray_convert_avx2; | 
|  | sse2fct = jsimd_extrgb_gray_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_RGBX: | 
|  | case JCS_EXT_RGBA: | 
|  | avx2fct = jsimd_extrgbx_gray_convert_avx2; | 
|  | sse2fct = jsimd_extrgbx_gray_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_BGR: | 
|  | avx2fct = jsimd_extbgr_gray_convert_avx2; | 
|  | sse2fct = jsimd_extbgr_gray_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_BGRX: | 
|  | case JCS_EXT_BGRA: | 
|  | avx2fct = jsimd_extbgrx_gray_convert_avx2; | 
|  | sse2fct = jsimd_extbgrx_gray_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_XBGR: | 
|  | case JCS_EXT_ABGR: | 
|  | avx2fct = jsimd_extxbgr_gray_convert_avx2; | 
|  | sse2fct = jsimd_extxbgr_gray_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_XRGB: | 
|  | case JCS_EXT_ARGB: | 
|  | avx2fct = jsimd_extxrgb_gray_convert_avx2; | 
|  | sse2fct = jsimd_extxrgb_gray_convert_sse2; | 
|  | break; | 
|  | default: | 
|  | avx2fct = jsimd_rgb_gray_convert_avx2; | 
|  | sse2fct = jsimd_rgb_gray_convert_sse2; | 
|  | break; | 
|  | } | 
|  |  | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | avx2fct(cinfo->image_width, input_buf, output_buf, output_row, num_rows); | 
|  | else | 
|  | 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 (*avx2fct) (JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY, int); | 
|  | void (*sse2fct) (JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY, int); | 
|  |  | 
|  | switch (cinfo->out_color_space) { | 
|  | case JCS_EXT_RGB: | 
|  | avx2fct = jsimd_ycc_extrgb_convert_avx2; | 
|  | sse2fct = jsimd_ycc_extrgb_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_RGBX: | 
|  | case JCS_EXT_RGBA: | 
|  | avx2fct = jsimd_ycc_extrgbx_convert_avx2; | 
|  | sse2fct = jsimd_ycc_extrgbx_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_BGR: | 
|  | avx2fct = jsimd_ycc_extbgr_convert_avx2; | 
|  | sse2fct = jsimd_ycc_extbgr_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_BGRX: | 
|  | case JCS_EXT_BGRA: | 
|  | avx2fct = jsimd_ycc_extbgrx_convert_avx2; | 
|  | sse2fct = jsimd_ycc_extbgrx_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_XBGR: | 
|  | case JCS_EXT_ABGR: | 
|  | avx2fct = jsimd_ycc_extxbgr_convert_avx2; | 
|  | sse2fct = jsimd_ycc_extxbgr_convert_sse2; | 
|  | break; | 
|  | case JCS_EXT_XRGB: | 
|  | case JCS_EXT_ARGB: | 
|  | avx2fct = jsimd_ycc_extxrgb_convert_avx2; | 
|  | sse2fct = jsimd_ycc_extxrgb_convert_sse2; | 
|  | break; | 
|  | default: | 
|  | avx2fct = jsimd_ycc_rgb_convert_avx2; | 
|  | sse2fct = jsimd_ycc_rgb_convert_sse2; | 
|  | break; | 
|  | } | 
|  |  | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | avx2fct(cinfo->output_width, input_buf, input_row, output_buf, num_rows); | 
|  | else | 
|  | 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) | 
|  | { | 
|  | init_simd(); | 
|  |  | 
|  | /* The code is optimised for these values only */ | 
|  | if (BITS_IN_JSAMPLE != 8) | 
|  | return 0; | 
|  | if (sizeof(JDIMENSION) != 4) | 
|  | return 0; | 
|  |  | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | return 1; | 
|  | if (simd_support & JSIMD_SSE2) | 
|  | return 1; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | GLOBAL(int) | 
|  | jsimd_can_h2v1_downsample(void) | 
|  | { | 
|  | init_simd(); | 
|  |  | 
|  | /* The code is optimised for these values only */ | 
|  | if (BITS_IN_JSAMPLE != 8) | 
|  | return 0; | 
|  | if (sizeof(JDIMENSION) != 4) | 
|  | return 0; | 
|  |  | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | return 1; | 
|  | if (simd_support & JSIMD_SSE2) | 
|  | return 1; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | GLOBAL(void) | 
|  | jsimd_h2v2_downsample(j_compress_ptr cinfo, jpeg_component_info *compptr, | 
|  | JSAMPARRAY input_data, JSAMPARRAY output_data) | 
|  | { | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | jsimd_h2v2_downsample_avx2(cinfo->image_width, cinfo->max_v_samp_factor, | 
|  | compptr->v_samp_factor, | 
|  | compptr->width_in_blocks, input_data, | 
|  | output_data); | 
|  | else | 
|  | 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) | 
|  | { | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | jsimd_h2v1_downsample_avx2(cinfo->image_width, cinfo->max_v_samp_factor, | 
|  | compptr->v_samp_factor, | 
|  | compptr->width_in_blocks, input_data, | 
|  | output_data); | 
|  | else | 
|  | 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) | 
|  | { | 
|  | init_simd(); | 
|  |  | 
|  | /* The code is optimised for these values only */ | 
|  | if (BITS_IN_JSAMPLE != 8) | 
|  | return 0; | 
|  | if (sizeof(JDIMENSION) != 4) | 
|  | return 0; | 
|  |  | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | return 1; | 
|  | if (simd_support & JSIMD_SSE2) | 
|  | return 1; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | GLOBAL(int) | 
|  | jsimd_can_h2v1_upsample(void) | 
|  | { | 
|  | init_simd(); | 
|  |  | 
|  | /* The code is optimised for these values only */ | 
|  | if (BITS_IN_JSAMPLE != 8) | 
|  | return 0; | 
|  | if (sizeof(JDIMENSION) != 4) | 
|  | return 0; | 
|  |  | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | return 1; | 
|  | if (simd_support & JSIMD_SSE2) | 
|  | return 1; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | GLOBAL(void) | 
|  | jsimd_h2v2_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr, | 
|  | JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr) | 
|  | { | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | jsimd_h2v2_upsample_avx2(cinfo->max_v_samp_factor, cinfo->output_width, | 
|  | input_data, output_data_ptr); | 
|  | else | 
|  | 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) | 
|  | { | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | jsimd_h2v1_upsample_avx2(cinfo->max_v_samp_factor, cinfo->output_width, | 
|  | input_data, output_data_ptr); | 
|  | else | 
|  | 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) | 
|  | { | 
|  | init_simd(); | 
|  |  | 
|  | /* The code is optimised for these values only */ | 
|  | if (BITS_IN_JSAMPLE != 8) | 
|  | return 0; | 
|  | if (sizeof(JDIMENSION) != 4) | 
|  | return 0; | 
|  |  | 
|  | if ((simd_support & JSIMD_AVX2) && | 
|  | IS_ALIGNED_AVX(jconst_fancy_upsample_avx2)) | 
|  | return 1; | 
|  | if ((simd_support & JSIMD_SSE2) && | 
|  | IS_ALIGNED_SSE(jconst_fancy_upsample_sse2)) | 
|  | return 1; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | GLOBAL(int) | 
|  | jsimd_can_h2v1_fancy_upsample(void) | 
|  | { | 
|  | init_simd(); | 
|  |  | 
|  | /* The code is optimised for these values only */ | 
|  | if (BITS_IN_JSAMPLE != 8) | 
|  | return 0; | 
|  | if (sizeof(JDIMENSION) != 4) | 
|  | return 0; | 
|  |  | 
|  | if ((simd_support & JSIMD_AVX2) && | 
|  | IS_ALIGNED_AVX(jconst_fancy_upsample_avx2)) | 
|  | return 1; | 
|  | if ((simd_support & JSIMD_SSE2) && | 
|  | IS_ALIGNED_SSE(jconst_fancy_upsample_sse2)) | 
|  | return 1; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | GLOBAL(void) | 
|  | jsimd_h2v2_fancy_upsample(j_decompress_ptr cinfo, jpeg_component_info *compptr, | 
|  | JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr) | 
|  | { | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | jsimd_h2v2_fancy_upsample_avx2(cinfo->max_v_samp_factor, | 
|  | compptr->downsampled_width, input_data, | 
|  | output_data_ptr); | 
|  | else | 
|  | 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) | 
|  | { | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | jsimd_h2v1_fancy_upsample_avx2(cinfo->max_v_samp_factor, | 
|  | compptr->downsampled_width, input_data, | 
|  | output_data_ptr); | 
|  | else | 
|  | 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) | 
|  | { | 
|  | init_simd(); | 
|  |  | 
|  | /* The code is optimised for these values only */ | 
|  | if (BITS_IN_JSAMPLE != 8) | 
|  | return 0; | 
|  | if (sizeof(JDIMENSION) != 4) | 
|  | return 0; | 
|  |  | 
|  | if ((simd_support & JSIMD_AVX2) && | 
|  | IS_ALIGNED_AVX(jconst_merged_upsample_avx2)) | 
|  | return 1; | 
|  | if ((simd_support & JSIMD_SSE2) && | 
|  | IS_ALIGNED_SSE(jconst_merged_upsample_sse2)) | 
|  | return 1; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | GLOBAL(int) | 
|  | jsimd_can_h2v1_merged_upsample(void) | 
|  | { | 
|  | init_simd(); | 
|  |  | 
|  | /* The code is optimised for these values only */ | 
|  | if (BITS_IN_JSAMPLE != 8) | 
|  | return 0; | 
|  | if (sizeof(JDIMENSION) != 4) | 
|  | return 0; | 
|  |  | 
|  | if ((simd_support & JSIMD_AVX2) && | 
|  | IS_ALIGNED_AVX(jconst_merged_upsample_avx2)) | 
|  | return 1; | 
|  | if ((simd_support & JSIMD_SSE2) && | 
|  | IS_ALIGNED_SSE(jconst_merged_upsample_sse2)) | 
|  | return 1; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | GLOBAL(void) | 
|  | jsimd_h2v2_merged_upsample(j_decompress_ptr cinfo, JSAMPIMAGE input_buf, | 
|  | JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf) | 
|  | { | 
|  | void (*avx2fct) (JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY); | 
|  | void (*sse2fct) (JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY); | 
|  |  | 
|  | switch (cinfo->out_color_space) { | 
|  | case JCS_EXT_RGB: | 
|  | avx2fct = jsimd_h2v2_extrgb_merged_upsample_avx2; | 
|  | sse2fct = jsimd_h2v2_extrgb_merged_upsample_sse2; | 
|  | break; | 
|  | case JCS_EXT_RGBX: | 
|  | case JCS_EXT_RGBA: | 
|  | avx2fct = jsimd_h2v2_extrgbx_merged_upsample_avx2; | 
|  | sse2fct = jsimd_h2v2_extrgbx_merged_upsample_sse2; | 
|  | break; | 
|  | case JCS_EXT_BGR: | 
|  | avx2fct = jsimd_h2v2_extbgr_merged_upsample_avx2; | 
|  | sse2fct = jsimd_h2v2_extbgr_merged_upsample_sse2; | 
|  | break; | 
|  | case JCS_EXT_BGRX: | 
|  | case JCS_EXT_BGRA: | 
|  | avx2fct = jsimd_h2v2_extbgrx_merged_upsample_avx2; | 
|  | sse2fct = jsimd_h2v2_extbgrx_merged_upsample_sse2; | 
|  | break; | 
|  | case JCS_EXT_XBGR: | 
|  | case JCS_EXT_ABGR: | 
|  | avx2fct = jsimd_h2v2_extxbgr_merged_upsample_avx2; | 
|  | sse2fct = jsimd_h2v2_extxbgr_merged_upsample_sse2; | 
|  | break; | 
|  | case JCS_EXT_XRGB: | 
|  | case JCS_EXT_ARGB: | 
|  | avx2fct = jsimd_h2v2_extxrgb_merged_upsample_avx2; | 
|  | sse2fct = jsimd_h2v2_extxrgb_merged_upsample_sse2; | 
|  | break; | 
|  | default: | 
|  | avx2fct = jsimd_h2v2_merged_upsample_avx2; | 
|  | sse2fct = jsimd_h2v2_merged_upsample_sse2; | 
|  | break; | 
|  | } | 
|  |  | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | avx2fct(cinfo->output_width, input_buf, in_row_group_ctr, output_buf); | 
|  | else | 
|  | 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 (*avx2fct) (JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY); | 
|  | void (*sse2fct) (JDIMENSION, JSAMPIMAGE, JDIMENSION, JSAMPARRAY); | 
|  |  | 
|  | switch (cinfo->out_color_space) { | 
|  | case JCS_EXT_RGB: | 
|  | avx2fct = jsimd_h2v1_extrgb_merged_upsample_avx2; | 
|  | sse2fct = jsimd_h2v1_extrgb_merged_upsample_sse2; | 
|  | break; | 
|  | case JCS_EXT_RGBX: | 
|  | case JCS_EXT_RGBA: | 
|  | avx2fct = jsimd_h2v1_extrgbx_merged_upsample_avx2; | 
|  | sse2fct = jsimd_h2v1_extrgbx_merged_upsample_sse2; | 
|  | break; | 
|  | case JCS_EXT_BGR: | 
|  | avx2fct = jsimd_h2v1_extbgr_merged_upsample_avx2; | 
|  | sse2fct = jsimd_h2v1_extbgr_merged_upsample_sse2; | 
|  | break; | 
|  | case JCS_EXT_BGRX: | 
|  | case JCS_EXT_BGRA: | 
|  | avx2fct = jsimd_h2v1_extbgrx_merged_upsample_avx2; | 
|  | sse2fct = jsimd_h2v1_extbgrx_merged_upsample_sse2; | 
|  | break; | 
|  | case JCS_EXT_XBGR: | 
|  | case JCS_EXT_ABGR: | 
|  | avx2fct = jsimd_h2v1_extxbgr_merged_upsample_avx2; | 
|  | sse2fct = jsimd_h2v1_extxbgr_merged_upsample_sse2; | 
|  | break; | 
|  | case JCS_EXT_XRGB: | 
|  | case JCS_EXT_ARGB: | 
|  | avx2fct = jsimd_h2v1_extxrgb_merged_upsample_avx2; | 
|  | sse2fct = jsimd_h2v1_extxrgb_merged_upsample_sse2; | 
|  | break; | 
|  | default: | 
|  | avx2fct = jsimd_h2v1_merged_upsample_avx2; | 
|  | sse2fct = jsimd_h2v1_merged_upsample_sse2; | 
|  | break; | 
|  | } | 
|  |  | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | avx2fct(cinfo->output_width, input_buf, in_row_group_ctr, output_buf); | 
|  | else | 
|  | 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_AVX2) | 
|  | return 1; | 
|  | 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) | 
|  | { | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | jsimd_convsamp_avx2(sample_data, start_col, workspace); | 
|  | else | 
|  | 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_AVX2) && IS_ALIGNED_AVX(jconst_fdct_islow_avx2)) | 
|  | return 1; | 
|  | 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) | 
|  | { | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | jsimd_fdct_islow_avx2(data); | 
|  | else | 
|  | 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_AVX2) | 
|  | return 1; | 
|  | 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) | 
|  | { | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | jsimd_quantize_avx2(coef_block, divisors, workspace); | 
|  | else | 
|  | 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_AVX2) && IS_ALIGNED_AVX(jconst_idct_islow_avx2)) | 
|  | return 1; | 
|  | 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) | 
|  | { | 
|  | if (simd_support & JSIMD_AVX2) | 
|  | jsimd_idct_islow_avx2(compptr->dct_table, coef_block, output_buf, | 
|  | output_col); | 
|  | else | 
|  | 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); | 
|  | } | 
|  |  | 
|  | GLOBAL(int) | 
|  | jsimd_can_encode_mcu_AC_first_prepare(void) | 
|  | { | 
|  | init_simd(); | 
|  |  | 
|  | if (DCTSIZE != 8) | 
|  | return 0; | 
|  | if (sizeof(JCOEF) != 2) | 
|  | return 0; | 
|  | if (SIZEOF_SIZE_T != 8) | 
|  | return 0; | 
|  | if (simd_support & JSIMD_SSE2) | 
|  | return 1; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | GLOBAL(void) | 
|  | jsimd_encode_mcu_AC_first_prepare(const JCOEF *block, | 
|  | const int *jpeg_natural_order_start, int Sl, | 
|  | int Al, JCOEF *values, size_t *zerobits) | 
|  | { | 
|  | jsimd_encode_mcu_AC_first_prepare_sse2(block, jpeg_natural_order_start, | 
|  | Sl, Al, values, zerobits); | 
|  | } | 
|  |  | 
|  | GLOBAL(int) | 
|  | jsimd_can_encode_mcu_AC_refine_prepare(void) | 
|  | { | 
|  | init_simd(); | 
|  |  | 
|  | if (DCTSIZE != 8) | 
|  | return 0; | 
|  | if (sizeof(JCOEF) != 2) | 
|  | return 0; | 
|  | if (SIZEOF_SIZE_T != 8) | 
|  | return 0; | 
|  | if (simd_support & JSIMD_SSE2) | 
|  | return 1; | 
|  |  | 
|  | return 0; | 
|  | } | 
|  |  | 
|  | GLOBAL(int) | 
|  | jsimd_encode_mcu_AC_refine_prepare(const JCOEF *block, | 
|  | const int *jpeg_natural_order_start, int Sl, | 
|  | int Al, JCOEF *absvalues, size_t *bits) | 
|  | { | 
|  | return jsimd_encode_mcu_AC_refine_prepare_sse2(block, | 
|  | jpeg_natural_order_start, | 
|  | Sl, Al, absvalues, bits); | 
|  | } |