mpv/libvo/geometry.c

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/* This file (C) Mark Zealey <mark@zealos.org> 2002, released under GPL */
#include "geometry.h"
#include "../mp_msg.h"
#include "../mplayer.h" /* exit_player() */
#include <string.h>
#include <stdlib.h> /* strtol */
/* A string of the form xpos[%]:ypos[%] */
char *vo_geometry = NULL;
int geometry_error()
{
mp_msg(MSGT_VO, MSGL_ERR, "-geometry option format incorrect (%s)\n", vo_geometry);
exit_player(NULL); /* ????? what else could we do ? */
return 0;
}
int get_num(char *s, int *num, char *end)
{
char *e;
long int t;
t = strtol(s, &e, 10);
if(e != end)
return 0;
*num = t;
return 1;
}
int geometry(int *xpos, int *ypos, int scrw, int scrh, int vidw, int vidh, int fs)
{
int xper = 0, yper = 0;
int glen;
char *colpos;
*xpos = 0; *ypos = 0;
if(vo_geometry == NULL)
return 1;
glen = strlen(vo_geometry);
colpos = strchr(vo_geometry, ':');
if(colpos == NULL)
colpos = (char *)(vo_geometry + glen);
/* Parse the x bit */
if(colpos[-1] == '%') {
if(!get_num(vo_geometry, &xper, colpos - 1))
return geometry_error();
} else {
if(!get_num(vo_geometry, xpos, colpos))
return geometry_error();
}
if(*colpos != '\0') {
if(vo_geometry[glen - 1] == '%') {
if(!get_num(colpos + 1, &yper, vo_geometry + glen - 1))
return geometry_error();
} else {
if(!get_num(colpos + 1, ypos, vo_geometry + glen))
return geometry_error();
}
}
if(xper)
*xpos = (scrw - vidw) * ((float)xper / 100.0);
if(yper)
*ypos = (scrh - vidh) * ((float)yper / 100.0);
if(*xpos + vidw > scrw) {
mp_msg(MSGT_VO, MSGL_ERR, "X position is too large\n");
return geometry_error();
}
if(*ypos + vidh > scrh) {
mp_msg(MSGT_VO, MSGL_ERR, "Y position is too large\n");
return geometry_error();
}
return 1;
}