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mpv/libvo/vo_aa.c

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/*
* MPlayer
*
* Video driver for AAlib - 1.0
*
* by Folke Ashberg <folke@ashberg.de>
*
* Code started: Sun Aug 12 2001
* Version 1.0 : Thu Aug 16 2001
*
*/
#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <unistd.h>
#include <limits.h>
#include <math.h>
#include <stdarg.h>
#include <time.h>
#include <string.h>
#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "../postproc/rgb2rgb.h"
#include "sub.h"
#include "linux/keycodes.h"
#include <aalib.h>
#include "cfgparser.h"
#define RGB 0
#define BGR 1
#define DO_INC(val,max,step) if (val + step <=max) val+=step; else val=max;
#define DO_DEC(val,min,step) if (val - step >=min) val-=step; else val=min;
#define MESSAGE_DURATION 3
#define MESSAGE_SIZE 512
#define MESSAGE_DEKO " +++ %s +++ "
LIBVO_EXTERN(aa)
static vo_info_t vo_info = {
"AAlib",
"aa",
"Folke Ashberg <folke@ashberg.de>",
""
};
/* aa's main context we use */
aa_context *c;
aa_renderparams *p;
static int fast =0;
/* used for YV12 streams for the converted RGB image */
uint8_t * convertbuf=NULL;
/* image infos */
static int image_format, bpp=24;
static int image_width;
static int image_height;
static int bppmul;
/* osd stuff */
time_t stoposd = 0;
static int showosdmessage = 0;
char osdmessagetext[MESSAGE_SIZE];
char posbar[MESSAGE_SIZE];
static int osdx, osdy;
int aaconfigmode=1;
/* for resizing/scaling */
static int *stx;
static int *sty;
double accum;
#ifdef USE_OSD
char * osdbuffer=NULL;
#endif
/* our version of the playmodes :) */
extern void mplayer_put_key(int code);
/* to disable stdout outputs when curses/linux mode */
extern int quiet;
/* configuration */
int aaopt_osdcolor = AA_SPECIAL;
int aaopt_subcolor = AA_SPECIAL;
extern struct aa_hardware_params aa_defparams;
extern struct aa_renderparams aa_defrenderparams;
void
resize(void){
/*
* this function is called by aa lib if windows resizes
* further during init, because here we have to calculate
* a little bit
*/
int i;
aa_resize(c);
showosdmessage=0;
osdy=aa_scrheight(c) - ( aa_scrheight(c)/10 );
/* now calculating the needed values for resizing */
/* We only need to use floating point to determine the correct
stretch vector for one line's worth. */
stx = (int *) malloc(sizeof(int) * image_width);
sty = (int *) malloc(sizeof(int) * image_height);
accum = 0;
for (i=0; (i < image_width); i++) {
int got;
accum += (double)aa_imgwidth(c)/(double)image_width;
got = (int) floor(accum);
stx[i] = got;
accum -= got;
}
accum = 0;
for (i=0; (i < image_height); i++) {
int got;
accum += (double)aa_imgheight(c)/(double)image_height;
got = (int) floor(accum);
sty[i] = got;
accum -= got;
}
#ifdef USE_OSD
if (osdbuffer!=NULL) free(osdbuffer);
osdbuffer=malloc(aa_scrwidth(c) * aa_scrheight(c));
#endif
}
void
osdmessage(int duration, int deko, char *fmt, ...)
{
/*
* for outputting a centered string at the bottom
* of our window for a while
*/
va_list ar;
char m[MESSAGE_SIZE];
va_start(ar, fmt);
vsprintf(m, fmt, ar);
va_end(ar);
if (deko==1) sprintf(osdmessagetext, MESSAGE_DEKO , m);
else strcpy(osdmessagetext, m);
showosdmessage=1;
stoposd = time(NULL) + duration;
osdx=(aa_scrwidth(c) / 2) - (strlen(osdmessagetext) / 2 ) ;
posbar[0]='\0';
}
void
osdpercent(int duration, int deko, int min, int max, int val, char * desc, char * unit)
{
/*
* prints a bar for setting values
*/
float step;
int where;
char m[MESSAGE_SIZE];
int i;
step=(float)aa_scrwidth(c) /(float)(max-min);
where=(val-min)*step;
sprintf(m,"%s: %i%s",desc, val, unit);
if (deko==1) sprintf(osdmessagetext, MESSAGE_DEKO , m);
else strcpy(osdmessagetext, m);
posbar[0]='|';
posbar[aa_scrwidth(c)-1]='|';
for (i=0;i<aa_scrwidth(c);i++){
if (i==where) posbar[i]='#';
else posbar[i]='-';
}
if (where!=0) posbar[0]='|';
if (where!=(aa_scrwidth(c)-1) ) posbar[aa_scrwidth(c)-1]='|';
/* snipp */
posbar[aa_scrwidth(c)]='\0';
showosdmessage=1;
stoposd = time(NULL) + duration;
osdx=(aa_scrwidth(c) / 2) - (strlen(osdmessagetext) / 2 ) ;
}
void
printosdtext()
{
/*
* places the mplayer status osd
*/
if (vo_osd_text)
aa_printf(c, 0, 0 , aaopt_osdcolor, "%s %s ", __sub_osd_names_short[vo_osd_text[0]], vo_osd_text+1);
}
void
printosdprogbar(){
/* print mplayer osd-progbar */
if (vo_osd_progbar_type!=-1){
osdpercent(1,1,0,255,vo_osd_progbar_value, __sub_osd_names[vo_osd_progbar_type], "");
}
}
static uint32_t
init(uint32_t width, uint32_t height, uint32_t d_width,
uint32_t d_height, uint32_t fullscreen, char *title,
uint32_t format) {
/*
* main init
* called by mplayer
*/
FILE * fp;
char fname[12];
int fd, vt, major, minor;
struct stat sbuf;
char * hidis = NULL;
int i;
extern aa_linkedlist *aa_displayrecommended;
switch(format) {
case IMGFMT_BGR24:
bpp = 24;
break;
case IMGFMT_RGB24:
bpp = 24;
break;
case IMGFMT_YV12:
bpp = 24;
/* YUV ? then initialize what we will need */
convertbuf=malloc(width*height*3);
yuv2rgb_init(24,MODE_BGR);
break;
default:
return 1;
}
bppmul=bpp/8;
/* initializing of aalib */
hidis=aa_getfirst(&aa_displayrecommended);
if ( hidis==NULL ){
/* check /dev/vcsa<vt> */
/* check only, if no driver is explicit set */
fd = dup (fileno (stderr));
fstat (fd, &sbuf);
major = sbuf.st_rdev >> 8;
vt = minor = sbuf.st_rdev & 0xff;
close (fd);
sprintf (fname, "/dev/vcsa%i", vt);
fp = fopen (fname, "w+");
if (fp==NULL){
fprintf(stderr,"VO: [aa] cannot open %s for writing,"
"so we'll not use linux driver\n", fname);
aa_recommendlowdisplay("linux");
aa_recommendhidisplay("curses");
aa_recommendhidisplay("X11");
}else fclose(fp);
} else aa_recommendhidisplay(hidis);
c = aa_autoinit(&aa_defparams);
aa_resizehandler(c, (void *)resize);
if (c == NULL) {
printf("Can not intialize aalib\n");
return 0;
}
if (!aa_autoinitkbd(c,0)) {
printf("Can not intialize keyboard\n");
aa_close(c);
return 0;
}
/*
if (!aa_autoinitmouse(c,0)) {
printf("Can not intialize mouse\n");
aa_close(c);
return 0;
}
*/
aa_hidecursor(c);
p = aa_getrenderparams();
if ((strstr(c->driver->name,"Curses")) || (strstr(c->driver->name,"Linux"))){
freopen("/dev/null", "w", stderr);
quiet=1; /* disable mplayer outputs */
/* disable console blanking */
printf("\033[9;0]");
}
image_height = height;
image_width = width;
image_format = format;
/* needed by prepare_image */
stx = (int *) malloc(sizeof(int) * image_width);
sty = (int *) malloc(sizeof(int) * image_height);
/* nothing will change its size, be we need some values initialized */
resize();
#ifdef USE_OSD
/* now init out own 'font' (to use vo_draw_text_sub without edit them) */
vo_font=malloc(sizeof(font_desc_t));//if(!desc) return NULL;
memset(vo_font,0,sizeof(font_desc_t));
vo_font->pic_a[0]=malloc(sizeof(raw_file));
vo_font->pic_b[0]=malloc(sizeof(raw_file));
vo_font->spacewidth=1;
vo_font->charspace=0;
vo_font->height=1;
vo_font->pic_a[0]->bmp=malloc(255);
vo_font->pic_b[0]->bmp=malloc(255);
vo_font->pic_a[0]->w=1;
vo_font->pic_a[0]->h=1;
for (i=1; i<256; i++){
vo_font->width[i]=1;
vo_font->font[i]=0;
vo_font->start[i]=i;
vo_font->pic_a[0]->bmp[i]=i;
vo_font->pic_b[0]->bmp[i]=i;
};
#endif
/* say hello */
osdmessage(5, 1, "Welcome to ASCII ARTS MPlayer");
printf("VO: [aa] screendriver: %s\n", c->driver->name);
printf("VO: [aa] keyboarddriver: %s\n", c->kbddriver->name);
//printf("VO: mousedriver: %s\n", c->mousedriver->name);
printf(
"\n"
"Important Options\n"
"\t-aaextended use use all 256 characters\n"
"\t-aaeight use eight bit ascii\n"
"\t-aadriver set recommended aalib driver (X11,curses,linux)\n"
"\t-aahelp to see all options provided by aalib\n"
"\n"
"AA-MPlayer Keys\n"
"\t1 : contrast -\n"
"\t2 : contrast +\n"
"\t3 : brightness -\n"
"\t4 : brightness +\n"
"\t5 : fast rendering\n"
"\t6 : dithering\n"
"\t7 : invert image\n"
"\ta : toggles between aa and mplayer control\n"
"\n"
"All other keys are MPlayer defaults.\n"
);
return 0;
}
static uint32_t
query_format(uint32_t format) {
/*
* ...are we able to... ?
* called by mplayer
*/
switch(format){
case IMGFMT_YV12:
case IMGFMT_RGB|24:
case IMGFMT_BGR|24:
return 1;
}
return 0;
}
static const vo_info_t*
get_info(void) {
/* who i am? */
return (&vo_info);
}
int
prepare_image(uint8_t *data, int inx, int iny, int outx, int outy){
/*
* copies an RGB-Image to the aalib imagebuffer
* also scaling an grayscaling is done here
* show_image calls us
*/
int value;
int x, y;
int tox, toy;
int ydest;
int i;
int pos;
toy = 0;
for (y=0; (y < (0 + iny)); y++) {
for (ydest=0; (ydest < sty[y-0]); ydest++) {
tox = 0;
for (x=0; (x < (0 + inx)); x++) {
if (!stx[x - 0]) {
continue;
}
pos=3*(inx*y)+(3*x);
value=(data[pos]+data[pos+1]+data[pos+2])/3;
for (i=0; (i < stx[x - 0]); i++) {
//printf("ToX: %i, ToY %i, i=%i, stx=%i, x=%i\n", tox, toy, i, stx[x], x);
c->imagebuffer[(toy*outx) +tox]=value;
tox++;
}
}
toy++;
}
}
return 0;
}
void
show_image(uint8_t * src){
/*
* every frame (flip_page/draw_frame) we will be called
*/
#ifdef USE_OSD
int i;
#endif
/* events? */
check_events();
/* RGB->gray , scaling/resizing, stores data in aalib imgbuf */
prepare_image( src, image_width, image_height,
aa_imgwidth(c), aa_imgheight(c) );
/* Now 'ASCIInate' the image */
if (fast)
aa_fastrender(c, 0, 0, aa_scrwidth(c), aa_scrheight(c) );
else
aa_render(c, p, 0, 0, aa_scrwidth(c), aa_scrheight(c));
/* do we have to put *our* (messages, progbar) osd to aa's txtbuf ? */
if (showosdmessage)
{
if (time(NULL)>=stoposd ) showosdmessage=0;
/* update osd */
aa_puts(c, osdx, osdy, AA_SPECIAL, osdmessagetext);
/* posbar? */
if (posbar[0]!='\0')
aa_puts(c, 0, osdy + 1, AA_SPECIAL, posbar);
}
/* OSD time & playmode , subtitles */
#ifdef USE_OSD
printosdtext();
/* now write the subtitle osd buffer */
for (i=0;i<aa_scrwidth(c)*aa_scrheight(c);i++){
if (osdbuffer[i]){
c->textbuffer[i]=osdbuffer[i];
c->attrbuffer[i]=aaopt_subcolor;
}
}
#endif
/* print out */
aa_flush(c);
}
static uint32_t
draw_frame(uint8_t *src[]) {
/*
* RGB-Video's Only
* src[0] is handled by prepare_image
*/
show_image(src[0]);
return 0;
}
static uint32_t
draw_slice(uint8_t *src[], int stride[],
int w, int h, int x, int y) {
/*
* for MPGEGS YV12
* draw a rectangle converted to RGB to a
* temporary RGB Buffer
*/
uint8_t *dst;
dst = convertbuf+(image_width * y + x) * 3;
yuv2rgb(dst,src[0],src[1],src[2],w,h,image_width*3,stride[0],stride[1]);
return 0;
}
static void
flip_page(void) {
/*
* wow! another ready Image, so draw it !
*/
if(image_format == IMGFMT_YV12)
show_image(convertbuf);
}
static void
check_events(void) {
/*
* any events?
* called by show_image and mplayer
*/
int key;
while ((key=aa_getevent(c,0))!=AA_NONE ){
if (key>255){
/* some conversations */
switch (key) {
case AA_UP:
mplayer_put_key(KEY_UP);
break;
case AA_DOWN:
mplayer_put_key(KEY_DOWN);
break;
case AA_LEFT:
mplayer_put_key(KEY_LEFT);
break;
case AA_RIGHT:
mplayer_put_key(KEY_RIGHT);
break;
case AA_ESC:
mplayer_put_key(KEY_ESC);
break;
case 65765:
mplayer_put_key(KEY_PAGE_UP);
break;
case 65766:
mplayer_put_key(KEY_PAGE_DOWN);
break;
default:
continue; /* aa lib special key */
break;
}
}
if (key=='a' || key=='A'){
aaconfigmode=!aaconfigmode;
osdmessage(MESSAGE_DURATION, 1, "aa config mode is now %s",
aaconfigmode==1 ? "on. use keys 1-7" : "off");
}
if (aaconfigmode==1) {
switch (key) {
/* AA image controls */
case '1': /* contrast */
DO_DEC(p->contrast,0,1);
osdpercent(MESSAGE_DURATION, 1, 0, 255, p->contrast, "AA-Contrast", "");
break;
case '2': /* contrast */
DO_INC(p->contrast,255,1);
osdpercent(MESSAGE_DURATION, 1, 0, 255, p->contrast, "AA-Contrast", "");
break;
case '3': /* brightness */
DO_DEC(p->bright,0,1);
osdpercent(MESSAGE_DURATION, 1, 0, 255, p->bright, "AA-Brightnes", "");
break;
case '4': /* brightness */
DO_INC(p->bright,255,1);
osdpercent(MESSAGE_DURATION, 1, 0, 255, p->bright, "AA-Brightnes", "");
break;
case '5':
fast=!fast;
osdmessage(MESSAGE_DURATION, 1, "Fast mode is now %s", fast==1 ? "on" : "off");
break;
case '6':
if (p->dither==AA_FLOYD_S){
p->dither=AA_NONE;
osdmessage(MESSAGE_DURATION, 1, "Dithering: Off");
}else if (p->dither==AA_NONE){
p->dither=AA_ERRORDISTRIB;
osdmessage(MESSAGE_DURATION, 1, "Dithering: Error Distribution");
}else if (p->dither==AA_ERRORDISTRIB){
p->dither=AA_FLOYD_S;
osdmessage(MESSAGE_DURATION, 1, "Dithering: Floyd Steinberg");
}
break;
case '7':
p->inversion=!p->inversion;
osdmessage(MESSAGE_DURATION, 1, "Invert mode is now %s",
p->inversion==1 ? "on" : "off");
break;
default :
/* nothing if we're interested in?
* the mplayer should handle it!
*/
mplayer_put_key(key);
break;
}
}// aaconfigmode
else mplayer_put_key(key);
}
}
static void
uninit(void) {
/*
* THE END
*/
if (strstr(c->driver->name,"Curses") || strstr(c->driver->name,"Linux")){
freopen("/dev/tty", "w", stderr);
quiet=0; /* enable mplayer outputs */
}
#ifdef USE_OSD
if (osdbuffer!=NULL) free(osdbuffer);
#endif
aa_close(c);
free(stx);
free(sty);
if (convertbuf!=NULL) free(convertbuf);
}
#ifdef USE_OSD
static void draw_alpha(int x,int y, int w,int h, unsigned char* src, unsigned char *srca, int stride){
/* alpha, hm, grr, only the char into our osdbuffer */
int pos;
pos=(x)+(y)*(aa_scrwidth(c));
osdbuffer[pos]=src[0];
}
#endif
static void
draw_osd(void){
#ifdef USE_OSD
/*
* the subtiles are written into a own osdbuffer
* because draw_osd is called after show_image/flip_page
* the osdbuffer is written the next show_image/flip_page
* into aatextbuf
*/
char * vo_osd_text_save;
int vo_osd_progbar_type_save;
memset(osdbuffer,0,aa_scrwidth(c)*aa_scrheight(c));
printosdprogbar();
/* let vo_draw_text only write subtitle */
vo_osd_text_save=vo_osd_text; /* we have to save the osd_text */
vo_osd_text=NULL;
vo_osd_progbar_type_save=vo_osd_progbar_type;
vo_osd_progbar_type=-1;
vo_draw_text(aa_scrwidth(c), aa_scrheight(c), draw_alpha);
vo_osd_text=vo_osd_text_save;
vo_osd_progbar_type=vo_osd_progbar_type_save;
#endif
}
int
getcolor(char * s){
int i;
char * rest;
if (s==NULL) return -1;
i=strtol(s, &rest, 10);
if ((rest==NULL || strlen(rest)==0) && i>=0 && i<=5) return i;
if (!strcasecmp(s, "normal")) return AA_NORMAL;
else if (!strcasecmp(s, "dim")) return AA_DIM;
else if (!strcasecmp(s, "bold")) return AA_BOLD;
else if (!strcasecmp(s, "boldfont")) return AA_BOLDFONT;
else if (!strcasecmp(s, "special")) return AA_SPECIAL;
else return -1;
}
int
vo_aa_parseoption(struct config * conf, char *opt, char *param){
/* got an option starting with aa */
char *pseudoargv[4];
int pseudoargc;
char * x, *help;
int i;
/* do WE need it ? */
if (!strcasecmp(opt, "aaosdcolor")){
if (param==NULL) return ERR_MISSING_PARAM;
if ((i=getcolor(param))==-1) return ERR_OUT_OF_RANGE;
aaopt_osdcolor=i;
return 1;
}else if (!strcasecmp(opt, "aasubcolor")){
if ((i=getcolor(param))==-1) return ERR_OUT_OF_RANGE;
aaopt_subcolor=i;
return 1;
}else if (!strcasecmp(opt, "aahelp")){
printf("Here are the aalib options:\n");
help=strdup(aa_help); /* aa_help is const :( */
x=strtok(help,"-");
printf(x);
while ((x=strtok(NULL, "-"))){
if (*(x-2)==' ') printf("-aa");
else printf("-");
printf("%s", x);
}
printf(
"\n"
"\n"
"Additional options vo_aa provides:\n"
" -aaosdcolor set osd color\n"
" -aasubcolor set subtitle color\n"
" the color params are:\n"
" 0 : normal\n"
" 1 : dark\n"
" 2 : bold\n"
" 3 : boldfont\n"
" 4 : reverse\n"
" 6 : special\n"
"\n\n"
" dT8 8Tb\n"
" dT 8 8 Tb\n"
" dT 8 8 Tb\n"
" <PROJECT><PROJECT>\n"
" dT 8 8 Tb\n"
" dT 8 8 Tb\n"
"\n"
);
exit(0);
}else{
/* parse param to aalib */
pseudoargv[1]=malloc(strlen(opt));
pseudoargv[3]=NULL;
sprintf(pseudoargv[1], "-%s", opt+2);
if (param!=NULL){
pseudoargv[2]=param;
pseudoargc=3;
}else{
pseudoargv[2]=NULL;
pseudoargc=2;
}
fprintf(stderr,"VO: [aa] ");
i=aa_parseoptions(&aa_defparams, &aa_defrenderparams, &pseudoargc, pseudoargv);
if (i!=1){
return ERR_MISSING_PARAM;
}
if (pseudoargv[1]!=NULL){
/* aalib has given param back */
fprintf(stderr," Parameter -%s accepted\n", opt);
return 0; /* param could be the filename */
}
fprintf(stderr," Parameter -%s %s accepted\n", opt, ((param==NULL) ? "" : param) );
return 1; /* all opt & params accepted */
}
return ERR_NOT_AN_OPTION;
}
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