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/*
* Copyright (C) 2000-2001 the xine project
*
* This file is part of xine, a unix video player.
*
* xine is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* xine is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
* $Id: overlay.c,v 1.1 2001/07/26 16:03:10 ehasenle Exp $
*
* Overlay support routines for video_out_dxr3
*/
#include <sys/types.h>
#include <sys/ioctl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <linux/em8300.h>
#include "dxr3_overlay.h"
#define TYPE_INT 1
#define TYPE_XINT 2
#define TYPE_COEFF 3
#define TYPE_FLOAT 4
struct lut_entry {
char *name;
int type;
void *ptr;
};
static struct lut_entry *new_lookuptable(dxr3_overlay_t *this)
{
struct lut_entry m[] = {
{"xoffset", TYPE_INT, &this->xoffset},
{"yoffset", TYPE_INT, &this->yoffset},
{"xcorr", TYPE_INT, &this->xcorr},
{"jitter", TYPE_INT, &this->jitter},
{"stability", TYPE_INT, &this->stability},
{"keycolor", TYPE_XINT, &this->colorkey},
{"colcal_upper", TYPE_COEFF, &this->colcal_upper[0]},
{"colcal_lower", TYPE_COEFF, &this->colcal_lower[0]},
{"color_interval", TYPE_FLOAT, &this->color_interval},
{0,0,0}
},*p;
p = malloc(sizeof(m));
memcpy(p,m,sizeof(m));
return p;
}
static int lookup_parameter(struct lut_entry *lut, char *name,
void **ptr, int *type)
{
int i;
for(i=0; lut[i].name; i++)
if(!strcmp(name,lut[i].name)) {
*ptr = lut[i].ptr;
*type = lut[i].type;
return 1;
}
return 0;
}
int dxr3_overlay_read_state(dxr3_overlay_t *this)
{
char *tok;
char fname[128],tmp[128],line[256];
FILE *fp;
struct lut_entry *lut;
void *ptr;
int type;
int j;
strcpy(fname,getenv("HOME"));
strcat(fname,"/.overlay");
sprintf(tmp,"/res_%dx%dx%d",
this->screen_xres,this->screen_yres,this->screen_depth);
strcat(fname,tmp);
if(!(fp=fopen(fname,"r"))){
printf("ERRROR Reading overlay init file!! run autocal !!!\n");
return -1;
}
lut = new_lookuptable(this);
while(!feof(fp)) {
if(!fgets(line,256,fp))
break;
tok=strtok(line," ");
if(lookup_parameter(lut,tok,&ptr,&type)) {
tok=strtok(NULL," ");
switch(type) {
case TYPE_INT:
sscanf(tok,"%d",(int *)ptr);
break;
case TYPE_XINT:
sscanf(tok,"%x",(int *)ptr);
break;
case TYPE_FLOAT:
sscanf(tok,"%f",(float *)ptr);
break;
case TYPE_COEFF:
for(j=0;j<3;j++) {
sscanf(tok,"%f",&((struct coeff *)ptr)[j].k);
tok=strtok(NULL," ");
sscanf(tok,"%f",&((struct coeff *)ptr)[j].m);
tok=strtok(NULL," ");
}
break;
}
}
}
free(lut);
fclose(fp);
return 0;
}
static int col_interp(float x, struct coeff c)
{
int y;
y = rint(x*c.k + c.m);
if (y > 255) y = 255;
if (y < 0) y = 0;
return y;
}
int dxr3_overlay_set_keycolor(dxr3_overlay_t *this)
{
float r = (this->colorkey & 0xff0000) >> 16;
float g = (this->colorkey & 0x00ff00) >> 8;
float b = (this->colorkey & 0x0000ff);
float interval = this->color_interval;
int ret;
int32_t overlay_limit;
em8300_attribute_t attr;
overlay_limit = /* lower limit */
col_interp(r - interval, this->colcal_upper[0]) << 16 |
col_interp(g - interval, this->colcal_upper[1]) << 8 |
col_interp(b - interval, this->colcal_upper[2]);
attr.attribute = EM9010_ATTRIBUTE_KEYCOLOR_LOWER;
attr.value = overlay_limit;
ret = ioctl(this->fd_control, EM8300_IOCTL_OVERLAY_SET_ATTRIBUTE, &attr);
if (ret < 0) return ret;
overlay_limit = /* upper limit */
col_interp(r + interval, this->colcal_upper[0]) << 16 |
col_interp(g + interval, this->colcal_upper[1]) << 8 |
col_interp(b + interval, this->colcal_upper[2]);
attr.attribute = EM9010_ATTRIBUTE_KEYCOLOR_UPPER;
attr.value = overlay_limit;
return ioctl(this->fd_control, EM8300_IOCTL_OVERLAY_SET_ATTRIBUTE, &attr);
}
int dxr3_overlay_set_mode(dxr3_overlay_t *this, int mode)
{
return ioctl(this->fd_control, EM8300_IOCTL_OVERLAY_SETMODE, &mode);
}
int dxr3_overlay_set_attributes(dxr3_overlay_t *this)
{
em8300_attribute_t attr;
attr.attribute = EM9010_ATTRIBUTE_XOFFSET;
attr.value = this->xoffset;
if(ioctl(this->fd_control, EM8300_IOCTL_OVERLAY_SET_ATTRIBUTE, &attr) == -1)
return -1;
attr.attribute = EM9010_ATTRIBUTE_YOFFSET;
attr.value = this->yoffset;
if(ioctl(this->fd_control, EM8300_IOCTL_OVERLAY_SET_ATTRIBUTE, &attr) == -1)
return -1;
attr.attribute = EM9010_ATTRIBUTE_XCORR;
attr.value = this->xcorr;
if(ioctl(this->fd_control, EM8300_IOCTL_OVERLAY_SET_ATTRIBUTE, &attr) == -1)
return -1;
attr.attribute = EM9010_ATTRIBUTE_STABILITY;
attr.value = this->stability;
if(ioctl(this->fd_control, EM8300_IOCTL_OVERLAY_SET_ATTRIBUTE, &attr) == -1)
return -1;
attr.attribute = EM9010_ATTRIBUTE_JITTER;
attr.value = this->jitter;
return ioctl(this->fd_control, EM8300_IOCTL_OVERLAY_SET_ATTRIBUTE, &attr);
}
int dxr3_overlay_set_screen(dxr3_overlay_t *this)
{
em8300_overlay_screen_t scr;
scr.xsize = this->screen_xres;
scr.ysize = this->screen_yres;
return ioctl(this->fd_control, EM8300_IOCTL_OVERLAY_SETSCREEN, &scr);
}
int dxr3_overlay_set_window(dxr3_overlay_t *this,
int xpos, int ypos, int width, int height)
{
em8300_overlay_window_t win;
/* is some part of the picture visible? */
if (xpos+width < 0) return 0;
if (ypos+height < 0) return 0;
if (xpos > this->screen_xres) return 0;
if (ypos > this->screen_yres) return 0;
win.xpos = xpos;
win.ypos = ypos;
win.width = width;
win.height = height;
return ioctl(this->fd_control, EM8300_IOCTL_OVERLAY_SETWINDOW, &win);
}
int dxr3_overlay_set_signalmode(dxr3_overlay_t *this,int mode)
{
return ioctl(this->fd_control, EM8300_IOCTL_OVERLAY_SIGNALMODE, &mode);
}
void dxr3_overlay_buggy_preinit(dxr3_overlay_t *this, int fd)
{
int mode = 0;
/* TODO: catch errors */
this->fd_control = fd;
dxr3_overlay_set_mode(this,EM8300_OVERLAY_MODE_OFF );
dxr3_overlay_set_screen(this);
dxr3_overlay_set_window(this, 1,1, 320,240);
dxr3_overlay_set_mode(this, EM8300_OVERLAY_MODE_OVERLAY);
ioctl(this->fd_control, EM8300_IOCTL_SET_VIDEOMODE, &mode);
dxr3_overlay_set_screen(this);
dxr3_overlay_set_window(this, 1,1, 320,240);
dxr3_overlay_set_attributes(this);
dxr3_overlay_set_keycolor(this);
dxr3_overlay_set_mode(this, EM8300_OVERLAY_MODE_OVERLAY);
}
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