RepoMirrors
/
mpv
mirror of https://github.com/mpv-player/mpv
1
0
Fork 0
Code Issues Releases Wiki Activity
mpv/libvo/vo_aa.c

539 lines
12 KiB
C
Raw Blame History

/*
* MPlayer
*
* Video driver for AAlib - alpha version
*
* by Folke Ashberg <folke@ashberg.de>
*
* Code started: Sun Aug 12 2001
*
*/
#include <stdio.h>
#include <stdlib.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 "yuv2rgb.h"
#include "sub.h"
#include "linux/keycodes.h"
#include <aalib.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 showosd = 0;
char osdtext[MESSAGE_SIZE];
char posbar[MESSAGE_SIZE];
static int osdx, osdy;
/* for resizing/scaling */
static int *stx;
static int *sty;
double accum;
/* our version of the playmodes :) */
static char * osdmodes[] ={ "|>", "||", ">>", "[]" , ">>" };
extern void mplayer_put_key(int code);
/* to disable stdout outputs when curses/linux mode */
extern int quiet;
/* config options */
int aaopt_extended = 0;
int aaopt_eight = 0;
int aaopt_osdcolor = AA_SPECIAL;
char *aaopt_driver = NULL;
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);
showosd=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;
}
}
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(osdtext, MESSAGE_DEKO , m);
else strcpy(osdtext, m);
showosd=1;
stoposd = time(NULL) + duration;
osdx=(aa_scrwidth(c) / 2) - (strlen(osdtext) / 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(osdtext, MESSAGE_DEKO , m);
else strcpy(osdtext, 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';
showosd=1;
stoposd = time(NULL) + duration;
osdx=(aa_scrwidth(c) / 2) - (strlen(osdtext) / 2 ) ;
}
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
*/
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 */
aa_recommendhidisplay("curses");
aa_recommendhidisplay("X11");
aa_recommendlowdisplay("linux");
/* options ? */
if (aaopt_eight) aa_defparams.supported|=AA_EIGHT;
if (aaopt_extended && !aaopt_eight) aa_defparams.supported|=AA_EXTENDED;
if (aaopt_driver!=NULL){
aa_recommendhidisplay(aaopt_driver);
}
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 */
}
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();
/* say hello */
osdmessage(5, 1, "Welcome to ASCII ARTS MPlayer");
printf("VO: screendriver: %s\n", c->driver->name);
printf("VO: keyboarddriver: %s\n", c->kbddriver->name);
//printf("VO: mousedriver: %s\n", c->mousedriver->name);
printf(
"\n"
"Options\n"
"\t-aaosdfont 0=normal, 1=dark, 2=bold, 3-boldfont, 4=reverse, 5=special\n"
"\t-aaextended use use all 256 characters\n"
"\t-aaeight use eight bit ascii\n"
"\n"
"AA-MPlayer Keys:\n"
"\t1 : fast rendering\n"
"\t2 : dithering\n"
"\t3 : invert image\n"
"\t4 : contrast -\n"
"\t5 : contrast +\n"
"\t6 : brightness -\n"
"\t7 : brightness +\n"
"\n"
"All other keys are MPlayer standart\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
printosd()
{
/*
* places the mplayer status osd
*/
if (vo_osd_text){
if (vo_osd_text[0]-1<=5)
aa_puts(c, 0,0, aaopt_osdcolor, osdmodes[vo_osd_text[0]-1]);
else aa_puts(c, 0,0, aaopt_osdcolor, "?");
aa_puts(c,2,0, aaopt_osdcolor, vo_osd_text+1);
aa_puts(c,strlen(vo_osd_text)+1,0, aaopt_osdcolor, " ");
}
}
void
show_image(uint8_t * src){
/*
* every frame (flip_page/draw_frame) we will be called
*/
/* 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 osd to aa's txtbuf ? */
if (showosd)
{
if (time(NULL)>=stoposd ) showosd=0;
/* update osd */
aa_puts(c, osdx, osdy, AA_SPECIAL, osdtext);
/* posbar? */
if (posbar[0]!='\0')
aa_puts(c, 0, osdy + 1, AA_SPECIAL, posbar);
}
/* and the real OSD, but only the time & playmode */
printosd();
/* print out */
aa_flush(c);
}
static uint32_t
draw_frame(uint8_t *src[]) {
/*
* RGB-Video's Only
* src[0] is handled bu 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;
}
}
switch (key) {
/* AA image controls */
case '1':
fast=!fast;
osdmessage(MESSAGE_DURATION, 1, "Fast mode is now %s", fast==1 ? "on" : "off");
break;
case '2':
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 '3':
p->inversion=!p->inversion;
osdmessage(MESSAGE_DURATION, 1, "Invert mode is now %s",
p->inversion==1 ? "on" : "off");
break;
case '4': /* contrast */
DO_DEC(p->contrast,0,1);
osdpercent(MESSAGE_DURATION, 1, 0, 255, p->contrast, "AA-Contrast", "");
break;
case '5': /* contrast */
DO_INC(p->contrast,255,1);
osdpercent(MESSAGE_DURATION, 1, 0, 255, p->contrast, "AA-Contrast", "");
break;
case '6': /* brightness */
DO_DEC(p->bright,0,1);
osdpercent(MESSAGE_DURATION, 1, 0, 255, p->bright, "AA-Brightnes", "");
break;
case '7': /* brightness */
DO_INC(p->bright,255,1);
osdpercent(MESSAGE_DURATION, 1, 0, 255, p->bright, "AA-Brightnes", "");
break;
default :
/* nothing if we're interested in?
* the mplayer should handle it!
*/
mplayer_put_key(key);
break;
}
}
}
static void
uninit(void) {
/*
* THE END
*/
aa_close(c);
free(stx);
free(sty);
if (convertbuf!=NULL) free(convertbuf);
if (strstr(c->driver->name,"Curses") || strstr(c->driver->name,"Linux")){
freopen("/dev/tty", "w", stderr);
quiet=0; /* enable mplayer outputs */
}
}
static void
draw_osd(void){
}
Reference in New Issue View Git Blame Copy Permalink