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mpv/libmenu/menu.c
albeu 017eaef61a Finnaly commit Nico's dvb menu. Sorry for committing this 
months later :(


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@10627 b3059339-0415-0410-9bf9-f77b7e298cf2
2003-08-16 09:51:05 +00:00

558 lines
13 KiB
C
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#include "../config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include "../libvo/osd.h"
#include "../libvo/font_load.h"
#include "../osdep/keycodes.h"
#include "../asxparser.h"
#include "../libmpdemux/stream.h"
#include "img_format.h"
#include "mp_image.h"
#include "../m_option.h"
#include "../m_struct.h"
#include "menu.h"
extern menu_info_t menu_info_cmdlist;
extern menu_info_t menu_info_pt;
extern menu_info_t menu_info_filesel;
extern menu_info_t menu_info_txt;
extern menu_info_t menu_info_console;
extern menu_info_t menu_info_pref;
#ifdef HAS_DVBIN_SUPPORT
extern menu_info_t menu_info_dvbsel;
#endif
menu_info_t* menu_info_list[] = {
&menu_info_pt,
&menu_info_cmdlist,
&menu_info_filesel,
&menu_info_txt,
&menu_info_console,
#ifdef HAS_DVBIN_SUPPORT
&menu_info_dvbsel,
#endif
&menu_info_pref,
NULL
};
typedef struct menu_def_st {
char* name;
menu_info_t* type;
void* cfg;
char* args;
} menu_def_t;
static menu_def_t* menu_list = NULL;
static int mcount = 0;
static int menu_parse_config(char* buffer) {
char *element,*body, **attribs, *name;
menu_info_t* minfo = NULL;
int r,i;
ASX_Parser_t* parser = asx_parser_new();
while(1) {
r = asx_get_element(parser,&buffer,&element,&body,&attribs);
if(r < 0) {
printf("Syntax error at line %d\n",parser->line);
asx_parser_free(parser);
return 0;
} else if(r == 0) {
asx_parser_free(parser);
return 1;
}
// Has it a name ?
name = asx_get_attrib("name",attribs);
if(!name) {
printf("Menu definitions need a name attrib (line %d)\n",parser->line);
free(element);
if(body) free(body);
asx_free_attribs(attribs);
continue;
}
// Try to find this menu type in our list
for(i = 0, minfo = NULL ; menu_info_list[i] ; i++) {
if(strcasecmp(element,menu_info_list[i]->name) == 0) {
minfo = menu_info_list[i];
break;
}
}
// Got it : add this to our list
if(minfo) {
menu_list = realloc(menu_list,(mcount+2)*sizeof(menu_def_t));
menu_list[mcount].name = name;
menu_list[mcount].type = minfo;
menu_list[mcount].cfg = m_struct_alloc(&minfo->priv_st);
menu_list[mcount].args = body;
// Setup the attribs
for(i = 0 ; attribs[2*i] ; i++) {
if(strcasecmp(attribs[2*i],"name") == 0) continue;
if(!m_struct_set(&minfo->priv_st,menu_list[mcount].cfg,attribs[2*i], attribs[2*i+1]))
printf("Bad attrib %s=%s in menu %s at line %d\n",attribs[2*i],attribs[2*i+1],
name,parser->line);
}
mcount++;
memset(&menu_list[mcount],0,sizeof(menu_def_t));
} else {
printf("Unknown menu type %s at line %d\n",element,parser->line);
free(name);
if(body) free(body);
}
free(element);
asx_free_attribs(attribs);
}
}
/// This will build the menu_defs list from the cfg file
#define BUF_STEP 1024
#define BUF_MIN 128
#define BUF_MAX BUF_STEP*1024
int menu_init(char* cfg_file) {
char* buffer = NULL;
int bl = BUF_STEP, br = 0;
int f, fd;
#ifndef HAVE_FREETYPE
if(vo_font == NULL)
return 0;
#endif
fd = open(cfg_file, O_RDONLY);
if(fd < 0) {
printf("Can't open menu config file: %s\n",cfg_file);
return 0;
}
buffer = malloc(bl);
while(1) {
int r;
if(bl - br < BUF_MIN) {
if(bl >= BUF_MAX) {
printf("Menu config file is too big (> %d KB)\n",BUF_MAX/1024);
close(fd);
free(buffer);
return 0;
}
bl += BUF_STEP;
buffer = realloc(buffer,bl);
}
r = read(fd,buffer+br,bl-br);
if(r == 0) break;
br += r;
}
if(!br) {
printf("Menu config file is empty\n");
return 0;
}
buffer[br-1] = '\0';
close(fd);
f = menu_parse_config(buffer);
free(buffer);
return f;
}
// Destroy all this stuff
void menu_unint(void) {
int i;
for(i = 0 ; menu_list && menu_list[i].name ; i++) {
free(menu_list[i].name);
m_struct_free(&menu_list[i].type->priv_st,menu_list[i].cfg);
if(menu_list[i].args) free(menu_list[i].args);
}
free(menu_list);
mcount = 0;
}
/// Default read_key function
void menu_dflt_read_key(menu_t* menu,int cmd) {
switch(cmd) {
case KEY_UP:
menu->read_cmd(menu,MENU_CMD_UP);
break;
case KEY_DOWN:
menu->read_cmd(menu,MENU_CMD_DOWN);
break;
case KEY_LEFT:
case KEY_ESC:
menu->read_cmd(menu,MENU_CMD_CANCEL);
break;
case KEY_RIGHT:
case KEY_ENTER:
menu->read_cmd(menu,MENU_CMD_OK);
break;
}
}
menu_t* menu_open(char *name) {
menu_t* m;
int i;
for(i = 0 ; menu_list[i].name != NULL ; i++) {
if(strcmp(name,menu_list[i].name) == 0)
break;
}
if(menu_list[i].name == NULL) {
printf("Menu %s not found\n",name);
return NULL;
}
m = calloc(1,sizeof(menu_t));
m->priv_st = &(menu_list[i].type->priv_st);
m->priv = m_struct_copy(m->priv_st,menu_list[i].cfg);
if(menu_list[i].type->open(m,menu_list[i].args))
return m;
if(m->priv)
m_struct_free(m->priv_st,m->priv);
free(m);
printf("Menu %s: init failed\n",name);
return NULL;
}
void menu_draw(menu_t* menu,mp_image_t* mpi) {
if(menu->show && menu->draw)
menu->draw(menu,mpi);
}
void menu_read_cmd(menu_t* menu,int cmd) {
if(menu->read_cmd)
menu->read_cmd(menu,cmd);
}
void menu_close(menu_t* menu) {
if(menu->close)
menu->close(menu);
if(menu->priv)
m_struct_free(menu->priv_st,menu->priv);
free(menu);
}
void menu_read_key(menu_t* menu,int cmd) {
if(menu->read_key)
menu->read_key(menu,cmd);
else
menu_dflt_read_key(menu,cmd);
}
///////////////////////////// Helpers ////////////////////////////////////
typedef void (*draw_alpha_f)(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride);
inline static draw_alpha_f get_draw_alpha(uint32_t fmt) {
switch(fmt) {
case IMGFMT_BGR15:
case IMGFMT_RGB15:
return vo_draw_alpha_rgb15;
case IMGFMT_BGR16:
case IMGFMT_RGB16:
return vo_draw_alpha_rgb16;
case IMGFMT_BGR24:
case IMGFMT_RGB24:
return vo_draw_alpha_rgb24;
case IMGFMT_BGR32:
case IMGFMT_RGB32:
return vo_draw_alpha_rgb32;
case IMGFMT_YV12:
case IMGFMT_I420:
case IMGFMT_IYUV:
case IMGFMT_YVU9:
case IMGFMT_IF09:
case IMGFMT_Y800:
case IMGFMT_Y8:
return vo_draw_alpha_yv12;
case IMGFMT_YUY2:
return vo_draw_alpha_yuy2;
}
return NULL;
}
// return the real height of a char:
static inline int get_height(int c,int h){
int font;
if ((font=vo_font->font[c])>=0)
if(h<vo_font->pic_a[font]->h) h=vo_font->pic_a[font]->h;
return h;
}
#ifdef HAVE_FREETYPE
#define render_txt(t) { char* p = t; while(*p) render_one_glyph(vo_font,*p++); }
#else
#define render_txt(t)
#endif
void menu_draw_text(mp_image_t* mpi,char* txt, int x, int y) {
draw_alpha_f draw_alpha = get_draw_alpha(mpi->imgfmt);
int font;
if(!draw_alpha) {
printf("Unsupported outformat !!!!\n");
return;
}
render_txt(txt);
while (*txt) {
unsigned char c=*txt++;
if ((font=vo_font->font[c])>=0 && (x + vo_font->width[c] <= mpi->w) && (y + vo_font->pic_a[font]->h <= mpi->h))
draw_alpha(vo_font->width[c], vo_font->pic_a[font]->h,
vo_font->pic_b[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->bmp+vo_font->start[c],
vo_font->pic_a[font]->w,
mpi->planes[0] + y * mpi->stride[0] + x * (mpi->bpp>>3),
mpi->stride[0]);
x+=vo_font->width[c]+vo_font->charspace;
}
}
void menu_draw_text_full(mp_image_t* mpi,char* txt,
int x, int y,int w, int h,
int vspace, int warp, int align, int anchor) {
int need_w,need_h;
int sy, ymin, ymax;
int sx, xmin, xmax, xmid, xrmin;
int ll = 0;
int font;
draw_alpha_f draw_alpha = get_draw_alpha(mpi->imgfmt);
if(!draw_alpha) {
printf("Unsupported outformat !!!!\n");
return;
}
render_txt(txt);
if(x > mpi->w || y > mpi->h)
return;
if(anchor & MENU_TEXT_VCENTER) {
if(h <= 0) h = mpi->h;
ymin = y - h/2;
ymax = y + h/2;
} else if(anchor & MENU_TEXT_BOT) {
if(h <= 0) h = mpi->h - y;
ymin = y - h;
ymax = y;
} else {
if(h <= 0) h = mpi->h - y;
ymin = y;
ymax = y + h;
}
if(anchor & MENU_TEXT_HCENTER) {
if(w <= 0) w = mpi->w;
xmin = x - w/2;
xmax = x + w/2;
} else if(anchor & MENU_TEXT_RIGHT) {
if(w <= 0) w = mpi->w -x;
xmin = x - w;
xmax = x;
} else {
if(w <= 0) w = mpi->w -x;
xmin = x;
xmax = x + w;
}
// How many space do we need to draw this ?
menu_text_size(txt,w,vspace,warp,&need_w,&need_h);
// Find the first line
if(align & MENU_TEXT_VCENTER)
sy = ymin + ((h - need_h)/2);
else if(align & MENU_TEXT_BOT)
sy = ymax - need_h - 1;
else
sy = y;
#if 0
// Find the first col
if(align & MENU_TEXT_HCENTER)
sx = xmin + ((w - need_w)/2);
else if(align & MENU_TEXT_RIGHT)
sx = xmax - need_w;
#endif
xmid = xmin + (xmax - xmin) / 2;
xrmin = xmin;
// Clamp the bb to the mpi size
if(ymin < 0) ymin = 0;
if(xmin < 0) xmin = 0;
if(ymax > mpi->h) ymax = mpi->h;
if(xmax > mpi->w) xmax = mpi->w;
// Jump some the beginnig text if needed
while(sy < ymin && *txt) {
unsigned char c=*txt++;
if(c == '\n' || (warp && ll + vo_font->width[c] > w)) {
ll = 0;
sy += vo_font->height + vspace;
if(c == '\n') continue;
}
ll += vo_font->width[c]+vo_font->charspace;
}
if(*txt == '\0') // Nothing left to draw
return;
while(sy < ymax && *txt) {
char* line_end = NULL;
int n;
if(txt[0] == '\n') { // New line
sy += vo_font->height + vspace;
txt++;
continue;
}
// Get the length and end of this line
for(n = 0, ll = 0 ; txt[n] != '\0' && txt[n] != '\n' ; n++) {
unsigned char c = txt[n];
if(warp && ll + vo_font->width[c] > w) break;
ll += vo_font->width[c]+vo_font->charspace;
}
line_end = &txt[n];
ll -= vo_font->charspace;
if(align & (MENU_TEXT_HCENTER|MENU_TEXT_RIGHT)) {
// Too long line
if(ll > xmax-xmin) {
if(align & MENU_TEXT_HCENTER) {
int mid = ll/2;
// Find the middle point
for(n--, ll = 0 ; n <= 0 ; n--) {
ll += vo_font->width[(int)txt[n]]+vo_font->charspace;
if(ll - vo_font->charspace > mid) break;
}
ll -= vo_font->charspace;
sx = xmid + mid - ll;
} else// MENU_TEXT_RIGHT)
sx = xmax + vo_font->charspace;
// We are after the start point -> go back
if(sx > xmin) {
for(n-- ; n <= 0 ; n--) {
unsigned char c = txt[n];
if(sx - vo_font->width[c] - vo_font->charspace < xmin) break;
sx -= vo_font->width[c]+vo_font->charspace;
}
} else { // We are before the start point -> go forward
for( ; sx < xmin && (&txt[n]) != line_end ; n++) {
unsigned char c = txt[n];
sx += vo_font->width[c]+vo_font->charspace;
}
}
txt = &txt[n]; // Jump to the new start char
} else {
if(align & MENU_TEXT_HCENTER)
sx = xmid - ll/2;
else
sx = xmax - 1 - ll;
}
} else {
for(sx = xrmin ; sx < xmin && txt != line_end ; txt++) {
unsigned char c = txt[n];
sx += vo_font->width[c]+vo_font->charspace;
}
}
while(sx < xmax && txt != line_end) {
unsigned char c = *txt++;
font = vo_font->font[c];
if(font >= 0) {
int cs = (vo_font->pic_a[font]->h - vo_font->height) / 2;
if ((sx + vo_font->width[c] < xmax) && (sy + vo_font->height < ymax) )
draw_alpha(vo_font->width[c], vo_font->height,
vo_font->pic_b[font]->bmp+vo_font->start[c] +
cs * vo_font->pic_a[font]->w,
vo_font->pic_a[font]->bmp+vo_font->start[c] +
cs * vo_font->pic_a[font]->w,
vo_font->pic_a[font]->w,
mpi->planes[0] + sy * mpi->stride[0] + sx * (mpi->bpp>>3),
mpi->stride[0]);
// else
//printf("Can't draw '%c'\n",c);
}
sx+=vo_font->width[c]+vo_font->charspace;
}
txt = line_end;
if(txt[0] == '\0') break;
sy += vo_font->height + vspace;
}
}
int menu_text_length(char* txt) {
int l = 0;
render_txt(txt);
while (*txt) {
unsigned char c=*txt++;
l += vo_font->width[c]+vo_font->charspace;
}
return l - vo_font->charspace;
}
void menu_text_size(char* txt,int max_width, int vspace, int warp, int* _w, int* _h) {
int l = 1, i = 0;
int w = 0;
render_txt(txt);
while (*txt) {
unsigned char c=*txt++;
if(c == '\n' || (warp && i + vo_font->width[c] >= max_width)) {
if(*txt)
l++;
i = 0;
if(c == '\n') continue;
}
i += vo_font->width[c]+vo_font->charspace;
if(i > w) w = i;
}
*_w = w;
*_h = (l-1) * (vo_font->height + vspace) + vo_font->height;
}
int menu_text_num_lines(char* txt, int max_width) {
int l = 1, i = 0;
render_txt(txt);
while (*txt) {
unsigned char c=*txt++;
if(c == '\n' || i + vo_font->width[c] > max_width) {
l++;
i = 0;
if(c == '\n') continue;
}
i += vo_font->width[c]+vo_font->charspace;
}
return l;
}
char* menu_text_get_next_line(char* txt, int max_width) {
int i = 0;
render_txt(txt);
while (*txt) {
unsigned char c=*txt;
if(c == '\n') {
txt++;
break;
}
i += vo_font->width[c];
if(i >= max_width)
break;
i += vo_font->charspace;
}
return txt;
}
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