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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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17
rdbmp.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 to improve performance.
* Last Modified : October 19, 2004
* ---------------------------------------------------------------------
*
* This file contains routines to read input images in Microsoft "BMP"
* format (MS Windows 3.x, OS/2 1.x, and OS/2 2.x flavors).
* Currently, only 8-bit and 24-bit images are supported, not 1-bit or
@@ -187,11 +194,14 @@ METHODDEF(JDIMENSION)
preload_image (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
{
bmp_source_ptr source = (bmp_source_ptr) sinfo;
#if (BITS_IN_JSAMPLE != 8) || defined(NEED_FAR_POINTERS)
register FILE *infile = source->pub.input_file;
register int c;
register JSAMPROW out_ptr;
JDIMENSION col;
#endif
JDIMENSION row;
JSAMPARRAY image_ptr;
JDIMENSION row, col;
cd_progress_ptr progress = (cd_progress_ptr) cinfo->progress;
/* Read the data into a virtual array in input-file row order. */
@@ -204,6 +214,10 @@ preload_image (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
image_ptr = (*cinfo->mem->access_virt_sarray)
((j_common_ptr) cinfo, source->whole_image,
row, (JDIMENSION) 1, TRUE);
#if (BITS_IN_JSAMPLE == 8) && !defined(NEED_FAR_POINTERS)
if (! ReadOK(source->pub.input_file, image_ptr[0], source->row_width))
ERREXIT(cinfo, JERR_INPUT_EOF);
#else
out_ptr = image_ptr[0];
for (col = source->row_width; col > 0; col--) {
/* inline copy of read_byte() for speed */
@@ -211,6 +225,7 @@ preload_image (j_compress_ptr cinfo, cjpeg_source_ptr sinfo)
ERREXIT(cinfo, JERR_INPUT_EOF);
*out_ptr++ = (JSAMPLE) c;
}
#endif
}
if (progress != NULL)
progress->completed_extra_passes++;