diff options
| author | ossman_ <ossman_@3789f03b-4d11-0410-bbf8-ca57d06f2519> | 2009-03-09 13:15:56 +0000 |
|---|---|---|
| committer | ossman_ <ossman_@3789f03b-4d11-0410-bbf8-ca57d06f2519> | 2009-03-09 13:15:56 +0000 |
| commit | cf212133545c94fc1b0d2ea3c42e2b95e2273804 (patch) | |
| tree | 457ff0fccf073930f5cbcc4481f6824839530dd0 /trunk/jcsample.c | |
| parent | 6acb0825a1004f4f4123093bf3234956e998735c (diff) | |
Framework for supporting SIMD acceleration
Designed to impose minimal changes on the "normal" code.
git-svn-id: https://libjpeg-turbo.svn.sourceforge.net/svnroot/libjpeg-turbo@14 3789f03b-4d11-0410-bbf8-ca57d06f2519
Diffstat (limited to 'trunk/jcsample.c')
| -rw-r--r-- | trunk/jcsample.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/trunk/jcsample.c b/trunk/jcsample.c index 212ec87..eea376f 100644 --- a/trunk/jcsample.c +++ b/trunk/jcsample.c @@ -2,6 +2,7 @@ * jcsample.c * * Copyright (C) 1991-1996, Thomas G. Lane. + * Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB * This file is part of the Independent JPEG Group's software. * For conditions of distribution and use, see the accompanying README file. * @@ -48,6 +49,7 @@ #define JPEG_INTERNALS #include "jinclude.h" #include "jpeglib.h" +#include "jsimd.h" /* Pointer to routine to downsample a single component */ @@ -494,7 +496,10 @@ 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; + if (jsimd_can_h2v1_downsample()) + downsample->methods[ci] = jsimd_h2v1_downsample; + else + 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 @@ -503,7 +508,10 @@ jinit_downsampler (j_compress_ptr cinfo) downsample->pub.need_context_rows = TRUE; } else #endif - downsample->methods[ci] = h2v2_downsample; + if (jsimd_can_h2v2_downsample()) + downsample->methods[ci] = jsimd_h2v2_downsample; + else + downsample->methods[ci] = h2v2_downsample; } else if ((cinfo->max_h_samp_factor % compptr->h_samp_factor) == 0 && (cinfo->max_v_samp_factor % compptr->v_samp_factor) == 0) { smoothok = FALSE; |