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exporting palette for 4/8bpp modes 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@7784 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2002-10-17 21:53:30 +00:00
parent ff0d48a9b3
commit e635c0d02d
1 changed files with 30 additions and 0 deletions
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30
libmpcodecs/vf_scale.c
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@ -19,6 +19,7 @@ struct vf_priv_s {
int param;
unsigned int fmt;
SwsContext *ctx;
unsigned char* palette;
};
extern int opt_screen_size_x;
@ -162,6 +163,32 @@ static int config(struct vf_instance_s* vf,
}
vf->priv->fmt=best;
if(vf->priv->palette){
free(vf->priv->palette);
vf->priv->palette=NULL;
}
switch(best){
case IMGFMT_BGR8: {
/* set 332 palette for 8 bpp */
int i;
vf->priv->palette=malloc(4*256);
for(i=0; i<256; i++){
vf->priv->palette[4*i+0]=4*(i&3)*21;
vf->priv->palette[4*i+1]=4*((i>>2)&7)*9;
vf->priv->palette[4*i+2]=4*((i>>5)&7)*9;
}
break; }
case IMGFMT_BGR4: {
int i;
vf->priv->palette=malloc(4*16);
for(i=0; i<16; i++){
vf->priv->palette[4*i+0]=4*(i&1)*63;
vf->priv->palette[4*i+1]=4*((i>>1)&3)*21;
vf->priv->palette[4*i+2]=4*((i>>3)&1)*63;
}
break; }
}
if(!opt_screen_size_x && !opt_screen_size_y){
d_width=d_width*vf->priv->w/width;
d_height=d_height*vf->priv->h/height;
@ -184,6 +211,8 @@ static int put_image(struct vf_instance_s* vf, mp_image_t *mpi){
dmpi->qscale=mpi->qscale;
dmpi->qstride=mpi->qstride;
}
if(vf->priv->palette) dmpi->planes[1]=vf->priv->palette; // export palette!
return vf_next_put_image(vf,dmpi);
}
@ -237,6 +266,7 @@ static int open(vf_instance_t *vf, char* args){
vf->priv->h=-1;
vf->priv->v_chr_drop=0;
vf->priv->param=0;
vf->priv->palette=NULL;
if(args) sscanf(args, "%d:%d:%d:%d",
&vf->priv->w,
&vf->priv->h,