// create or update a pic's image
cachepic_t *Draw_NewPic(char *picname, int width, int height, int alpha, qbyte *pixels);
// free the texture memory used by a pic
// create or update a pic's image
cachepic_t *Draw_NewPic(char *picname, int width, int height, int alpha, qbyte *pixels);
// free the texture memory used by a pic