[vlc-commits] adjust: stick to single precision
Rémi Denis-Courmont
git at videolan.org
Tue Aug 19 21:17:02 CEST 2014
vlc | branch: master | Rémi Denis-Courmont <remi at remlab.net> | Tue Aug 19 22:16:42 2014 +0300| [e0e1f0fce33f18dd288151fb8a3ffa05e971d5c8] | committer: Rémi Denis-Courmont
adjust: stick to single precision
The VLC object variables are stored in single precision anyway.
> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=e0e1f0fce33f18dd288151fb8a3ffa05e971d5c8
---
modules/video_filter/adjust.c | 55 ++++++++++++++++++-----------------------
1 file changed, 24 insertions(+), 31 deletions(-)
diff --git a/modules/video_filter/adjust.c b/modules/video_filter/adjust.c
index eb28fe7..2963016 100644
--- a/modules/video_filter/adjust.c
+++ b/modules/video_filter/adjust.c
@@ -119,16 +119,16 @@ static const char *const ppsz_filter_options[] = {
struct filter_sys_t
{
vlc_mutex_t lock;
- double f_contrast;
- double f_brightness;
- float f_hue;
- double f_saturation;
- double f_gamma;
- bool b_brightness_threshold;
- int (* pf_process_sat_hue)( picture_t *, picture_t *, int, int, int,
- int, int );
- int (* pf_process_sat_hue_clip)( picture_t *, picture_t *, int, int,
- int, int, int );
+ float f_contrast;
+ float f_brightness;
+ float f_hue;
+ float f_saturation;
+ float f_gamma;
+ bool b_brightness_threshold;
+ int (*pf_process_sat_hue)( picture_t *, picture_t *, int, int, int,
+ int, int );
+ int (*pf_process_sat_hue_clip)( picture_t *, picture_t *, int, int,
+ int, int, int );
};
/*****************************************************************************
@@ -232,13 +232,6 @@ static picture_t *FilterPlanar( filter_t *p_filter, picture_t *p_pic )
uint8_t *p_in, *p_in_end, *p_line_end;
uint8_t *p_out;
- bool b_thres;
- double f_hue;
- double f_gamma;
- int32_t i_cont, i_lum;
- int i_sat, i_sin, i_cos, i_x, i_y;
- int i;
-
filter_sys_t *p_sys = p_filter->p_sys;
if( !p_pic ) return NULL;
@@ -252,12 +245,12 @@ static picture_t *FilterPlanar( filter_t *p_filter, picture_t *p_pic )
/* Get variables */
vlc_mutex_lock( &p_sys->lock );
- i_cont = (int)( p_sys->f_contrast * 255 );
- i_lum = (int)( (p_sys->f_brightness - 1.0)*255 );
- f_hue = p_sys->f_hue * (float)(M_PI / 180.);
- i_sat = (int)( p_sys->f_saturation * 256 );
- f_gamma = 1.0 / p_sys->f_gamma;
- b_thres = p_sys->b_brightness_threshold;
+ int32_t i_cont = lroundf( p_sys->f_contrast * 255.f );
+ int32_t i_lum = lroundf( (p_sys->f_brightness - 1.f) * 255.f );
+ float f_hue = p_sys->f_hue * (float)(M_PI / 180.);
+ int i_sat = (int)( p_sys->f_saturation * 256.f );
+ float f_gamma = 1.f / p_sys->f_gamma;
+ bool b_thres = p_sys->b_brightness_threshold;
vlc_mutex_unlock( &p_sys->lock );
/*
@@ -271,13 +264,13 @@ static picture_t *FilterPlanar( filter_t *p_filter, picture_t *p_pic )
i_lum += 128 - i_cont / 2;
/* Fill the gamma lookup table */
- for( i = 0 ; i < 256 ; i++ )
+ for( unsigned i = 0 ; i < 256 ; i++ )
{
- pi_gamma[ i ] = clip_uint8_vlc( pow(i / 255.0, f_gamma) * 255.0);
+ pi_gamma[ i ] = clip_uint8_vlc( powf(i / 255.f, f_gamma) * 255.f);
}
/* Fill the luma lookup table */
- for( i = 0 ; i < 256 ; i++ )
+ for( unsigned i = 0 ; i < 256 ; i++ )
{
pi_luma[ i ] = pi_gamma[clip_uint8_vlc( i_lum + i_cont * i / 256)];
}
@@ -288,7 +281,7 @@ static picture_t *FilterPlanar( filter_t *p_filter, picture_t *p_pic )
* We get luma as threshold value: the higher it is, the darker is
* the image. Should I reverse this?
*/
- for( i = 0 ; i < 256 ; i++ )
+ for( int i = 0 ; i < 256 ; i++ )
{
pi_luma[ i ] = (i < i_lum) ? 0 : 255;
}
@@ -339,11 +332,11 @@ static picture_t *FilterPlanar( filter_t *p_filter, picture_t *p_pic )
* Do the U and V planes
*/
- i_sin = sin(f_hue) * 256;
- i_cos = cos(f_hue) * 256;
+ int i_sin = sinf(f_hue) * 256.f;
+ int i_cos = cosf(f_hue) * 256.f;
- i_x = ( cos(f_hue) + sin(f_hue) ) * 32768;
- i_y = ( cos(f_hue) - sin(f_hue) ) * 32768;
+ int i_x = ( cosf(f_hue) + sinf(f_hue) ) * 32768.f;
+ int i_y = ( cosf(f_hue) - sinf(f_hue) ) * 32768.f;
if ( i_sat > 256 )
{
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