Improve readability and flexibility of compatibility macros
git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@241 632fc199-4ca6-4c93-a231-07263d6284db
diff --git a/jdsample.c b/jdsample.c
index 5f6ffbe..1864dd6 100644
--- a/jdsample.c
+++ b/jdsample.c
@@ -422,7 +422,7 @@
/* jdmainct.c doesn't support context rows when min_DCT_scaled_size = 1,
* so don't ask for it.
*/
- do_fancy = cinfo->do_fancy_upsampling && _min_DCT_scaled_size > 1;
+ do_fancy = cinfo->do_fancy_upsampling && cinfo->_min_DCT_scaled_size > 1;
/* Verify we can handle the sampling factors, select per-component methods,
* and create storage as needed.
@@ -432,10 +432,10 @@
/* Compute size of an "input group" after IDCT scaling. This many samples
* are to be converted to max_h_samp_factor * max_v_samp_factor pixels.
*/
- h_in_group = (compptr->h_samp_factor * _DCT_scaled_size) /
- _min_DCT_scaled_size;
- v_in_group = (compptr->v_samp_factor * _DCT_scaled_size) /
- _min_DCT_scaled_size;
+ h_in_group = (compptr->h_samp_factor * compptr->_DCT_scaled_size) /
+ cinfo->_min_DCT_scaled_size;
+ v_in_group = (compptr->v_samp_factor * compptr->_DCT_scaled_size) /
+ cinfo->_min_DCT_scaled_size;
h_out_group = cinfo->max_h_samp_factor;
v_out_group = cinfo->max_v_samp_factor;
upsample->rowgroup_height[ci] = v_in_group; /* save for use later */