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b4f5702c0a
mpv/libvo/vo_aa.c
reimar b4f5702c0a Consistently use MP_MAX_PLANES as size for plane pointer/stride arrays in libvo. 
This might avoid some issues since sws_scale in some cases assumes these
have at least 4 valid entries.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@29101 b3059339-0415-0410-9bf9-f77b7e298cf2
2009-03-29 14:37:21 +00:00

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/*
* video output driver for AAlib
*
* copyright (c) 2001 Folke Ashberg <folke@ashberg.de>
*
* This file is part of MPlayer.
*
* MPlayer 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.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#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 <errno.h>
#include "config.h"
#include "video_out.h"
#include "video_out_internal.h"
#include "aspect.h"
#include "libswscale/swscale.h"
#include "libmpcodecs/vf_scale.h"
#include "font_load.h"
#include "sub.h"
#include "osdep/keycodes.h"
#include <aalib.h>
#include "subopt-helper.h"
#include "help_mp.h"
#include "mp_msg.h"
#include "mp_fifo.h"
#define MESSAGE_DURATION 3
#define MESSAGE_SIZE 512
#define MESSAGE_DEKO " +++ %s +++ "
static const vo_info_t info = {
"AAlib",
"aa",
"Alban Bedel <albeu@free.fr> and Folke Ashberg <folke@ashberg.de>",
""
};
const LIBVO_EXTERN(aa)
/* aa's main context we use */
aa_context *c;
aa_renderparams *p;
static int fast =0;
/* used for the sws */
static uint8_t * image[MP_MAX_PLANES];
static int image_stride[MP_MAX_PLANES];
/* image infos */
static int image_format;
static int image_width;
static int image_height;
static int image_x, image_y;
static int screen_x, screen_y;
static int screen_w, screen_h;
static int src_width;
static int src_height;
/* osd stuff */
time_t stoposd = 0;
static int showosdmessage = 0;
char osdmessagetext[MESSAGE_SIZE];
char posbar[MESSAGE_SIZE];
static int osdx, osdy;
static int osd_text_length = 0;
int aaconfigmode=1;
font_desc_t* vo_font_save = NULL;
static struct SwsContext *sws=NULL;
/* configuration */
int aaopt_osdcolor = AA_SPECIAL;
int aaopt_subcolor = AA_SPECIAL;
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
*/
aa_resize(c);
aspect_save_screenres(aa_imgwidth(c),aa_imgheight(c));
image_height = aa_imgheight(c); //src_height;
image_width = aa_imgwidth(c); //src_width;
aspect(&image_width,&image_height,A_ZOOM);
image_x = (aa_imgwidth(c) - image_width) / 2;
image_y = (aa_imgheight(c) - image_height) / 2;
screen_w = image_width * aa_scrwidth(c) / aa_imgwidth(c);
screen_h = image_height * aa_scrheight(c) / aa_imgheight(c);
screen_x = (aa_scrwidth(c) - screen_w) / 2;
screen_y = (aa_scrheight(c) - screen_h) / 2;
if(sws) sws_freeContext(sws);
sws = sws_getContextFromCmdLine(src_width,src_height,image_format,
image_width,image_height,IMGFMT_Y8);
memset(image, 0, sizeof(image));
image[0] = aa_image(c) + image_y * aa_imgwidth(c) + image_x;
memset(image_stride, 0, sizeof(image_stride));
image_stride[0] = aa_imgwidth(c);
showosdmessage=0;
}
static void
osdmessage(int duration, int deko, const char *fmt, ...)
{
/*
* for outputting a centered string at the bottom
* of our window for a while
*/
va_list ar;
char m[MESSAGE_SIZE];
unsigned int old_len = strlen(osdmessagetext);
va_start(ar, fmt);
vsprintf(m, fmt, ar);
va_end(ar);
if (deko==1) sprintf(osdmessagetext, MESSAGE_DEKO , m);
else strcpy(osdmessagetext, m);
if(old_len > strlen(osdmessagetext)) {
memset(c->textbuffer + osdy * aa_scrwidth(c) + osdx,' ',old_len);
memset(c->attrbuffer + osdy * aa_scrwidth(c) + osdx,0,old_len);
}
showosdmessage=1;
stoposd = time(NULL) + duration;
osdx=(aa_scrwidth(c) / 2) - (strlen(osdmessagetext) / 2 ) ;
posbar[0]='\0';
}
static void
osdpercent(int duration, int deko, int min, int max, int val, const char * desc, const char * unit)
{
/*
* prints a bar for setting values
*/
float step;
int where;
int i;
step=(float)aa_scrwidth(c) /(float)(max-min);
where=(val-min)*step;
osdmessage(duration,deko,"%s: %i%s",desc, val, unit);
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]='|';
posbar[aa_scrwidth(c)]='\0';
}
static void
printosdtext(void)
{
if(osd_text_length > 0 && !vo_osd_text) {
memset(c->textbuffer,' ',osd_text_length);
memset(c->attrbuffer,0,osd_text_length);
osd_text_length = 0;
}
/*
* places the mplayer status osd
*/
if (vo_osd_text && vo_osd_text[0] != 0) {
int len;
if(vo_osd_text[0] < 32) {
len = strlen(sub_osd_names_short[vo_osd_text[0]]) + strlen(vo_osd_text+1) + 2;
aa_printf(c, 0, 0 , aaopt_osdcolor, "%s %s ", sub_osd_names_short[vo_osd_text[0]], vo_osd_text+1);
} else {
len = strlen(vo_osd_text) + 1;
aa_printf(c, 0, 0 , aaopt_osdcolor, "%s ",vo_osd_text);
}
if(len < osd_text_length) {
memset(c->textbuffer + len,' ',osd_text_length - len);
memset(c->attrbuffer + len,0,osd_text_length - len);
}
osd_text_length = len;
}
}
static void
printosdprogbar(void){
/* 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 int
config(uint32_t width, uint32_t height, uint32_t d_width,
uint32_t d_height, uint32_t flags, char *title,
uint32_t format) {
/*
* main init
* called by mplayer
*/
int i;
aspect_save_orig(width,height);
aspect_save_prescale(d_width,d_height);
src_height = height;
src_width = width;
image_format = format;
/* nothing will change its size, be we need some values initialized */
resize();
/* now init our own 'font' */
if(!vo_font_save) vo_font_save = vo_font;
if(vo_font == vo_font_save) {
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));
memset(vo_font->pic_a[0],0,sizeof(raw_file));
vo_font->pic_b[0]=malloc(sizeof(raw_file));
memset(vo_font->pic_b[0],0,sizeof(raw_file));
#ifdef CONFIG_FREETYPE
vo_font->dynamic = 0;
#endif
vo_font->spacewidth=1;
vo_font->charspace=0;
vo_font->height=1;
vo_font->pic_a[0]->bmp=malloc(255);
vo_font->pic_a[0]->pal=NULL;
vo_font->pic_b[0]->bmp=malloc(255);
vo_font->pic_b[0]->pal=NULL;
vo_font->pic_a[0]->w=1;
vo_font->pic_a[0]->h=1;
for (i=0; i<255; 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;
}
}
/* say hello */
osdmessage(5, 1, "Welcome to ASCII ART MPlayer");
mp_msg(MSGT_VO,MSGL_V,"VO: [aa] screendriver: %s\n", c->driver->name);
mp_msg(MSGT_VO,MSGL_V,"VO: [aa] keyboarddriver: %s\n", c->kbddriver->name);
mp_msg(MSGT_VO,MSGL_INFO,
"\n"
"Important suboptions\n"
"\textended use use all 256 characters\n"
"\teight use eight bit ascii\n"
"\tdriver set recommended aalib driver (X11,curses,linux)\n"
"\thelp 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 int
query_format(uint32_t format) {
/*
* ...are we able to... ?
* called by mplayer
* All input format supported by the sws
*/
switch(format){
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_IYU2:
case IMGFMT_BGR32:
case IMGFMT_BGR24:
case IMGFMT_BGR16:
case IMGFMT_BGR15:
case IMGFMT_RGB32:
case IMGFMT_RGB24:
case IMGFMT_Y8:
case IMGFMT_Y800:
return VFCAP_CSP_SUPPORTED | VFCAP_SWSCALE | VFCAP_OSD;
}
return 0;
}
static int
draw_frame(uint8_t *src[]) {
int stride[MP_MAX_PLANES] = {0};
switch(image_format) {
case IMGFMT_BGR15:
case IMGFMT_BGR16:
stride[0] = src_width*2;
break;
case IMGFMT_IYU2:
case IMGFMT_BGR24:
stride[0] = src_width*3;
break;
case IMGFMT_BGR32:
stride[0] = src_width*4;
break;
}
sws_scale_ordered(sws,src,stride,0,src_height,image,image_stride);
/* Now 'ASCIInate' the image */
if (fast)
aa_fastrender(c, screen_x, screen_y, screen_w + screen_x, screen_h + screen_y );
else
aa_render(c, p,screen_x, screen_y, screen_w + screen_x, screen_h + screen_y );
return 0;
}
static int
draw_slice(uint8_t *src[], int stride[],
int w, int h, int x, int y) {
int dx1 = screen_x + (x * screen_w / src_width);
int dy1 = screen_y + (y * screen_h / src_height);
int dx2 = screen_x + ((x+w) * screen_w / src_width);
int dy2 = screen_y + ((y+h) * screen_h / src_height);
sws_scale_ordered(sws,src,stride,y,h,image,image_stride);
/* Now 'ASCIInate' the image */
if (fast)
aa_fastrender(c, dx1, dy1, dx2, dy2 );
else
aa_render(c, p,dx1, dy1, dx2, dy2 );
return 0;
}
static void
flip_page(void) {
/* do we have to put *our* (messages, progbar) osd to aa's txtbuf ? */
if (showosdmessage)
{
if (time(NULL)>=stoposd ) {
showosdmessage=0;
if(*osdmessagetext) {
memset(c->textbuffer + osdy * aa_scrwidth(c) + osdx,' ',strlen(osdmessagetext));
memset(c->attrbuffer + osdy * aa_scrwidth(c) + osdx ,0,strlen(osdmessagetext));
osdmessagetext[0] = '\0';
}
if(*posbar) {
memset(c->textbuffer + (osdy+1) * aa_scrwidth(c),' ',strlen(posbar));
memset(c->attrbuffer + (osdy+1) * aa_scrwidth(c),0,strlen(posbar));
}
} else {
/* 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 */
printosdtext();
/* print out */
aa_flush(c);
}
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 5-7" : "off");
}
if (aaconfigmode==1) {
switch (key) {
/* AA image controls */
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);
}
if(vo_font_save) {
free(vo_font->pic_a[0]->bmp);
free(vo_font->pic_a[0]);
free(vo_font->pic_b[0]->bmp);
free(vo_font->pic_b[0]);
free(vo_font);
vo_font = vo_font_save;
vo_font_save = NULL;
}
aa_close(c);
}
static void draw_alpha(int x,int y, int w,int h, unsigned char* src, unsigned char *srca, int stride){
int i,j;
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
if (src[i*stride+j] > 0) {
c->textbuffer[x + j + (y+i)*aa_scrwidth(c)] = src[i*stride+j];
c->attrbuffer[x + j + (y+i)*aa_scrwidth(c)] = aaopt_subcolor;
}
}
}
}
static void clear_alpha(int x0,int y0, int w,int h) {
int l;
for(l = 0 ; l < h ; l++) {
memset(c->textbuffer + (y0 + l) * aa_scrwidth(c) + x0,' ',w);
memset(c->attrbuffer + (y0 + l) * aa_scrwidth(c) + x0,0,w);
}
}
static void
draw_osd(void){
char * vo_osd_text_save;
int vo_osd_progbar_type_save;
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_remove_text(aa_scrwidth(c), aa_scrheight(c),clear_alpha);
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;
}
static 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;
}
static int parse_suboptions(const char *arg) {
char *pseudoargv[4], *osdcolor = NULL, *subcolor = NULL, **strings,
*helpmsg = NULL;
int pseudoargc, displayhelp = 0, *booleans;
const opt_t extra_opts[] = {
{"osdcolor", OPT_ARG_MSTRZ, &osdcolor, NULL},
{"subcolor", OPT_ARG_MSTRZ, &subcolor, NULL},
{"help", OPT_ARG_BOOL, &displayhelp, NULL} };
opt_t *subopts = NULL, *p;
char * const strings_list[] = {"-driver", "-kbddriver", "-mousedriver", "-font",
"-width", "-height", "-minwidth", "-minheight", "-maxwidth",
"-maxheight", "-recwidth", "-recheight", "-bright", "-contrast",
"-gamma", "-dimmul", "-boldmul", "-random" };
char * const booleans_list[] = {"-dim", "-bold", "-reverse", "-normal",
"-boldfont", "-inverse", "-extended", "-eight", "-dither",
"-floyd_steinberg", "-error_distribution"};
char * const nobooleans_list[] = {"-nodim", "-nobold", "-noreverse", "-nonormal",
"-noboldfont", "-noinverse", "-noextended", "-noeight", "-nodither",
"-nofloyd_steinberg", "-noerror_distribution"};
const int nstrings = sizeof(strings_list) / sizeof(char*);
const int nbooleans = sizeof(booleans_list) / sizeof(char*);
const int nextra_opts = sizeof(extra_opts) / sizeof(opt_t);
const int nsubopts = nstrings + nbooleans + nextra_opts;
int i, retval = 0;
subopts = calloc(nsubopts + 1, sizeof(opt_t));
strings = calloc(nstrings, sizeof(char*));
booleans = calloc(nbooleans, sizeof(int));
p = subopts;
for (i=0; i<nstrings; i++, p++) {
p->name = strings_list[i] + 1; // skip '-'
p->type = OPT_ARG_MSTRZ;
p->valp = &strings[i];
}
for (i=0; i<nbooleans; i++, p++) {
p->name = booleans_list[i] + 1;
p->type = OPT_ARG_BOOL;
p->valp = &booleans[i];
}
memcpy(p, extra_opts, sizeof(extra_opts));
retval = subopt_parse(arg, subopts);
if (retval == 0 && displayhelp) {
helpmsg = strdup(aa_help);
for (i=0; i<(signed)strlen(helpmsg); i++)
if (helpmsg[i] == '-') helpmsg[i] = ' ';
mp_msg(MSGT_VO, MSGL_INFO, MSGTR_VO_AA_HelpHeader);
mp_msg(MSGT_VO, MSGL_INFO, "%s\n\n", helpmsg);
mp_msg(MSGT_VO, MSGL_INFO, MSGTR_VO_AA_AdditionalOptions);
retval = -1;
}
if (retval == 0) {
pseudoargv[3] = NULL;
for (i=0; i<nstrings; i++) {
pseudoargc = 3; // inside loop because aalib changes it
if (strings[i] != NULL) {
pseudoargv[1] = strings_list[i];
pseudoargv[2] = strings[i];
aa_parseoptions(&aa_defparams, &aa_defrenderparams,
&pseudoargc, pseudoargv);
}
}
pseudoargv[2] = NULL;
for (i=0; i<nbooleans; i++) {
pseudoargc = 2;
if (booleans[i]) pseudoargv[1] = booleans_list[i];
else pseudoargv[1] = nobooleans_list[i];
aa_parseoptions(&aa_defparams, &aa_defrenderparams,
&pseudoargc, pseudoargv);
}
if (osdcolor) aaopt_osdcolor = getcolor(osdcolor);
if (subcolor) aaopt_subcolor = getcolor(subcolor);
}
if (subopts) free(subopts);
if (booleans) free(booleans);
if (strings) {
for (i=0; i<nstrings; i++)
if (strings[i])
free(strings[i]);
free(strings);
}
if (osdcolor) free(osdcolor);
if (subcolor) free(subcolor);
if (helpmsg) free(helpmsg);
return retval;
}
static int preinit(const char *arg)
{
char * hidis = NULL;
struct stat sbuf;
int fd, vt, major, minor;
FILE * fp;
char fname[12];
if(arg)
{
if (parse_suboptions(arg) != 0)
return ENOSYS;
}
/* 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%2.2i", 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);
if (c == NULL) {
mp_msg(MSGT_VO,MSGL_ERR,"Cannot initialize aalib\n");
return VO_ERROR;
}
if (!aa_autoinitkbd(c,0)) {
mp_msg(MSGT_VO,MSGL_ERR,"Cannot initialize keyboard\n");
aa_close(c);
return VO_ERROR;
}
aa_resizehandler(c, (void *)resize);
aa_hidecursor(c);
p = aa_getrenderparams();
if ((strstr(c->driver->name,"Curses")) || (strstr(c->driver->name,"Linux"))){
freopen("/dev/null", "w", stderr);
/* disable console blanking */
printf("\033[9;0]");
}
memset(image,0,3*sizeof(uint8_t));
osdmessagetext[0] = '\0';
osdx = osdy = 0;
return 0;
}
static int control(uint32_t request, void *data, ...)
{
switch (request) {
case VOCTRL_QUERY_FORMAT:
return query_format(*((uint32_t*)data));
case VOCTRL_SET_EQUALIZER: {
va_list ap;
int val;
va_start(ap, data);
val = va_arg(ap, int);
va_end(ap);
if(strcmp((char*)data,"contrast") == 0)
p->contrast = ( val + 100 ) * 64 / 100;
else if(strcmp((char*)data,"brightness") == 0)
p->bright = ( val + 100) * 128 / 100;
return VO_TRUE;
}
case VOCTRL_GET_EQUALIZER: {
va_list ap;
int* val;
va_start(ap, data);
val = va_arg(ap, int*);
va_end(ap);
if(strcmp((char*)data,"contrast") == 0)
*val = (p->contrast - 64) * 100 / 64;
else if(strcmp((char*)data,"brightness") == 0)
*val = (p->bright - 128) * 100 / 128;
return VO_TRUE;
}
}
return VO_NOTIMPL;
}
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