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mpv/libmenu/menu.c

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#include "config.h"
#include "mp_msg.h"
#include "help_mp.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 "libvo/sub.h"
#include "osdep/keycodes.h"
#include "asxparser.h"
#include "stream/stream.h"
#include "input/input.h"
#include "libmpcodecs/img_format.h"
#include "libmpcodecs/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_chapsel;
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_chapsel,
&menu_info_filesel,
&menu_info_txt,
&menu_info_console,
#ifdef HAS_DVBIN_SUPPORT
&menu_info_dvbsel,
#endif
&menu_info_pref,
NULL
};
typedef struct key_cmd_s {
int key;
char *cmd;
} key_cmd_t;
typedef struct menu_cmd_bindings_s {
char *name;
key_cmd_t *bindings;
int binding_num;
struct menu_cmd_bindings_s *parent;
} menu_cmd_bindings_t;
struct menu_def_st {
char* name;
menu_info_t* type;
void* cfg;
char* args;
};
static struct MPContext *menu_ctx = NULL;
static menu_def_t* menu_list = NULL;
static int menu_count = 0;
static menu_cmd_bindings_t *cmd_bindings = NULL;
static int cmd_bindings_num = 0;
menu_cmd_bindings_t *get_cmd_bindings(const char *name) {
int i;
for (i = 0; i < cmd_bindings_num; ++i)
if (!strcasecmp(cmd_bindings[i].name, name))
return &cmd_bindings[i];
return NULL;
}
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) {
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_SyntaxErrorAtLine,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) {
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_MenuDefinitionsNeedANameAttrib,parser->line);
free(element);
if(body) free(body);
asx_free_attribs(attribs);
continue;
}
if (!strcasecmp(element, "keybindings")) {
menu_cmd_bindings_t *bindings = cmd_bindings;
char *parent_bindings;
cmd_bindings = realloc(cmd_bindings,
(cmd_bindings_num+1)*sizeof(menu_cmd_bindings_t));
for (i = 0; i < cmd_bindings_num; ++i)
if (cmd_bindings[i].parent)
cmd_bindings[i].parent = cmd_bindings[i].parent-bindings+cmd_bindings;
bindings = &cmd_bindings[cmd_bindings_num];
memset(bindings, 0, sizeof(menu_cmd_bindings_t));
bindings->name = name;
parent_bindings = asx_get_attrib("parent",attribs);
if (parent_bindings) {
bindings->parent = get_cmd_bindings(parent_bindings);
free(parent_bindings);
}
free(element);
asx_free_attribs(attribs);
if (body) {
char *bd = body;
char *b, *key, *cmd;
int keycode;
for(;;) {
r = asx_get_element(parser,&bd,&element,&b,&attribs);
if(r < 0) {
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_SyntaxErrorAtLine,
parser->line);
free(body);
asx_parser_free(parser);
return 0;
}
if(r == 0)
break;
if (!strcasecmp(element, "binding")) {
key = asx_get_attrib("key",attribs);
cmd = asx_get_attrib("cmd",attribs);
if (key && (keycode = mp_input_get_key_from_name(key)) >= 0) {
keycode &= ~MP_NO_REPEAT_KEY;
mp_msg(MSGT_GLOBAL,MSGL_V,
"[libmenu] got keybinding element %d %s=>[%s].\n",
keycode, key, cmd ? cmd : "");
bindings->bindings = realloc(bindings->bindings,
(bindings->binding_num+1)*sizeof(key_cmd_t));
bindings->bindings[bindings->binding_num].key = keycode;
bindings->bindings[bindings->binding_num].cmd = cmd;
++bindings->binding_num;
}
else
free(cmd);
free(key);
}
free(element);
asx_free_attribs(attribs);
free(b);
}
free(body);
}
++cmd_bindings_num;
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,(menu_count+2)*sizeof(menu_def_t));
menu_list[menu_count].name = name;
menu_list[menu_count].type = minfo;
menu_list[menu_count].cfg = m_struct_alloc(&minfo->priv_st);
menu_list[menu_count].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[menu_count].cfg,attribs[2*i], attribs[2*i+1]))
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_BadAttrib,attribs[2*i],attribs[2*i+1],
name,parser->line);
}
menu_count++;
memset(&menu_list[menu_count],0,sizeof(menu_def_t));
} else {
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_UnknownMenuType,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(struct MPContext *mpctx, 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) {
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_CantOpenConfigFile,cfg_file);
return 0;
}
buffer = malloc(bl);
while(1) {
int r;
if(bl - br < BUF_MIN) {
if(bl >= BUF_MAX) {
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_ConfigFileIsTooBig,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) {
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_ConfigFileIsEmpty);
return 0;
}
buffer[br-1] = '\0';
close(fd);
menu_ctx = mpctx;
f = menu_parse_config(buffer);
free(buffer);
return f;
}
// Destroy all this stuff
void menu_uninit(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);
menu_count = 0;
for (i = 0; i < cmd_bindings_num; ++i) {
free(cmd_bindings[i].name);
while(cmd_bindings[i].binding_num > 0)
free(cmd_bindings[i].bindings[--cmd_bindings[i].binding_num].cmd);
free(cmd_bindings[i].bindings);
}
free(cmd_bindings);
}
/// Default read_key function
int menu_dflt_read_key(menu_t* menu,int cmd) {
int i;
menu_cmd_bindings_t *bindings = get_cmd_bindings(menu->type->name);
if (!bindings)
bindings = get_cmd_bindings(menu->type->type->name);
if (!bindings)
bindings = get_cmd_bindings("default");
while (bindings) {
for (i = 0; i < bindings->binding_num; ++i) {
if (bindings->bindings[i].key == cmd) {
if (bindings->bindings[i].cmd)
mp_input_parse_and_queue_cmds(bindings->bindings[i].cmd);
return 1;
}
}
bindings = bindings->parent;
}
return 0;
}
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) {
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_MenuNotFound,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);
m->ctx = menu_ctx;
m->type = &menu_list[i];
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);
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_MenuInitFailed,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;
case IMGFMT_UYVY:
return vo_draw_alpha_uyvy;
}
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;
}
static void render_txt(char *txt)
{
while (*txt) {
int c = utf8_get_char((const char**)&txt);
render_one_glyph(vo_font, c);
}
}
#ifdef USE_FRIBIDI
#include <fribidi/fribidi.h>
#include "libavutil/common.h"
char *menu_fribidi_charset = NULL;
int menu_flip_hebrew = 0;
int menu_fribidi_flip_commas = 0;
static char *menu_fribidi(char *txt)
{
static int char_set_num = -1;
static FriBidiChar *logical, *visual;
static size_t buffer_size = 1024;
static char *outputstr;
FriBidiCharType base;
fribidi_boolean log2vis;
size_t len;
if (menu_flip_hebrew) {
len = strlen(txt);
if (char_set_num == -1) {
fribidi_set_mirroring (1);
fribidi_set_reorder_nsm (0);
char_set_num = fribidi_parse_charset("UTF-8");
buffer_size = FFMAX(1024,len+1);
logical = malloc(buffer_size);
visual = malloc(buffer_size);
outputstr = malloc(buffer_size);
} else if (len+1 > buffer_size) {
buffer_size = len+1;
logical = realloc(logical, buffer_size);
visual = realloc(visual, buffer_size);
outputstr = realloc(outputstr, buffer_size);
}
len = fribidi_charset_to_unicode (char_set_num, txt, len, logical);
base = menu_fribidi_flip_commas?FRIBIDI_TYPE_ON:FRIBIDI_TYPE_L;
log2vis = fribidi_log2vis (logical, len, &base, visual, NULL, NULL, NULL);
if (log2vis) {
len = fribidi_remove_bidi_marks (visual, len, NULL, NULL, NULL);
fribidi_unicode_to_charset (char_set_num, visual, len, outputstr);
return outputstr;
}
}
return txt;
}
#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) {
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_UnsupportedOutformat);
return;
}
#ifdef USE_FRIBIDI
txt = menu_fribidi(txt);
#endif
render_txt(txt);
while (*txt) {
int c=utf8_get_char((const char**)&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) {
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_UnsupportedOutformat);
return;
}
#ifdef USE_FRIBIDI
txt = menu_fribidi(txt);
#endif
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) {
int c=utf8_get_char((const char**)&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) {
int c=utf8_get_char((const char**)&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) {
int c=utf8_get_char((const char**)&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) {
int c=utf8_get_char((const char**)&txt);
if(c == '\n' || (warp && i + vo_font->width[c] >= max_width)) {
i -= vo_font->charspace;
if (i > w) w = i;
if(*txt)
l++;
i = 0;
if(c == '\n') continue;
}
i += vo_font->width[c]+vo_font->charspace;
}
if (i > 0) {
i -= 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) {
int c=utf8_get_char((const char**)&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) {
int c=utf8_get_char((const char**)&txt);
if(c == '\n') {
txt++;
break;
}
i += vo_font->width[c];
if(i >= max_width)
break;
i += vo_font->charspace;
}
return txt;
}
void menu_draw_box(mp_image_t* mpi,unsigned char grey,unsigned char alpha, int x, int y, int w, int h) {
draw_alpha_f draw_alpha = get_draw_alpha(mpi->imgfmt);
int g;
if(!draw_alpha) {
mp_msg(MSGT_GLOBAL,MSGL_WARN,MSGTR_LIBMENU_UnsupportedOutformat);
return;
}
if(x > mpi->w || y > mpi->h) return;
if(x < 0) w += x, x = 0;
if(x+w > mpi->w) w = mpi->w-x;
if(y < 0) h += y, y = 0;
if(y+h > mpi->h) h = mpi->h-y;
g = ((256-alpha)*grey)>>8;
if(g < 1) g = 1;
{
int stride = (w+7)&(~7); // round to 8
char pic[stride*h],pic_alpha[stride*h];
memset(pic,g,stride*h);
memset(pic_alpha,alpha,stride*h);
draw_alpha(w,h,pic,pic_alpha,stride,
mpi->planes[0] + y * mpi->stride[0] + x * (mpi->bpp>>3),
mpi->stride[0]);
}
}
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