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IJG R6b with x86SIMD V1.02

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Independent JPEG Group's JPEG software release 6b
with x86 SIMD extension for IJG JPEG library version 1.02
This commit is contained in:
MIYASAKA Masaru
2006-02-04 00:00:00 +00:00
committed by DRC
parent 5ead57a34a
commit a2e6a9dd47
156 changed files with 49018 additions and 4283 deletions
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53
jcsample.c
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@@ -5,6 +5,13 @@
* This file is part of the Independent JPEG Group's software.
* For conditions of distribution and use, see the accompanying README file.
*
* ---------------------------------------------------------------------
* x86 SIMD extension for IJG JPEG library
* Copyright (C) 1999-2006, MIYASAKA Masaru.
* This file has been modified for SIMD extension.
* Last Modified : January 5, 2006
* ---------------------------------------------------------------------
*
* This file contains downsampling routines.
*
* Downsampling input data is counted in "row groups". A row group
@@ -48,6 +55,7 @@
#define JPEG_INTERNALS
#include "jinclude.h"
#include "jpeglib.h"
#include "jcolsamp.h" /* Private declarations */
/* Pointer to routine to downsample a single component */
@@ -467,6 +475,7 @@ jinit_downsampler (j_compress_ptr cinfo)
int ci;
jpeg_component_info * compptr;
boolean smoothok = TRUE;
unsigned int simd = jpeg_simd_support((j_common_ptr) cinfo);
downsample = (my_downsample_ptr)
(*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE,
@@ -494,7 +503,17 @@ jinit_downsampler (j_compress_ptr cinfo)
} else if (compptr->h_samp_factor * 2 == cinfo->max_h_samp_factor &&
compptr->v_samp_factor == cinfo->max_v_samp_factor) {
smoothok = FALSE;
downsample->methods[ci] = h2v1_downsample;
#ifdef JCSAMPLE_SSE2_SUPPORTED
if (simd & JSIMD_SSE2)
downsample->methods[ci] = jpeg_h2v1_downsample_sse2;
else
#endif
#ifdef JCSAMPLE_MMX_SUPPORTED
if (simd & JSIMD_MMX)
downsample->methods[ci] = jpeg_h2v1_downsample_mmx;
else
#endif
downsample->methods[ci] = h2v1_downsample;
} else if (compptr->h_samp_factor * 2 == cinfo->max_h_samp_factor &&
compptr->v_samp_factor * 2 == cinfo->max_v_samp_factor) {
#ifdef INPUT_SMOOTHING_SUPPORTED
@@ -502,6 +521,16 @@ jinit_downsampler (j_compress_ptr cinfo)
downsample->methods[ci] = h2v2_smooth_downsample;
downsample->pub.need_context_rows = TRUE;
} else
#endif
#ifdef JCSAMPLE_SSE2_SUPPORTED
if (simd & JSIMD_SSE2)
downsample->methods[ci] = jpeg_h2v2_downsample_sse2;
else
#endif
#ifdef JCSAMPLE_MMX_SUPPORTED
if (simd & JSIMD_MMX)
downsample->methods[ci] = jpeg_h2v2_downsample_mmx;
else
#endif
downsample->methods[ci] = h2v2_downsample;
} else if ((cinfo->max_h_samp_factor % compptr->h_samp_factor) == 0 &&
@@ -517,3 +546,25 @@ jinit_downsampler (j_compress_ptr cinfo)
TRACEMS(cinfo, 0, JTRC_SMOOTH_NOTIMPL);
#endif
}
#ifndef JSIMD_MODEINFO_NOT_SUPPORTED
GLOBAL(unsigned int)
jpeg_simd_downsampler (j_compress_ptr cinfo)
{
unsigned int simd = jpeg_simd_support((j_common_ptr) cinfo);
#ifdef JCSAMPLE_SSE2_SUPPORTED
if (simd & JSIMD_SSE2)
return JSIMD_SSE2;
#endif
#ifdef JCSAMPLE_MMX_SUPPORTED
if (simd & JSIMD_MMX)
return JSIMD_MMX;
#endif
return JSIMD_NONE;
}
#endif /* !JSIMD_MODEINFO_NOT_SUPPORTED */