diff options
Diffstat (limited to 'libvo/aspect.c')
| -rw-r--r-- | libvo/aspect.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/libvo/aspect.c b/libvo/aspect.c new file mode 100644 index 0000000000..b9302614e0 --- /dev/null +++ b/libvo/aspect.c @@ -0,0 +1,32 @@ +/* Stuff for correct aspect scaling. */ +#include "aspect.h" + +float monitor_aspect=4.0/3.0; + +/* aspect is called with the source resolution and the + * resolution, that the scaled image should fit into + */ + +rect_t aspect(int srcw, int srch, int fitinw, int fitinh){ + rect_t r,z; + r.w=fitinw; + r.x=0; + r.h=(int)(((float)fitinw / (float)srcw * (float)srch) + * ((float)fitinh/((float)fitinw/monitor_aspect))); + r.h+=r.h%2; // round + r.y=(fitinh-r.h)/2; + z=r; + //printf("aspect rez x: %d y: %d wh: %dx%d\n",r.x,r.y,r.w,r.h); + if(r.h>fitinh || r.h<srch){ + r.h=fitinh; + r.y=0; + r.w=(int)(((float)fitinh / (float)srch * (float)srcw) + * ((float)fitinw/((float)fitinh/(1/monitor_aspect)))); + r.w+=r.w%2; // round + r.x=(fitinw-r.w)/2; + } + if(r.w>fitinw) r=z; + //printf("aspect ret x: %d y: %d wh: %dx%d\n",r.x,r.y,r.w,r.h); + return r; +} + |