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/*
* font.c: 'EnigmaNG' skin for the Video Disk Recorder
*
* See the README file for copyright information and how to reach the author.
*
* Taken from GraphTFT
*/
#include "common.h"
#if VDRVERSNUM != 10503
#include "font.h"
#include <iconv.h>
#include <stdio.h>
cGraphtftFont::cGraphtftFont()
{
#if VDRVERSNUM < 10503
_library = 0;
_face = 0;
// init freetype2 lib
int error = FT_Init_FreeType(&_library);
if (error)
{
error("ERROR: Could not init freetype library");
}
#endif
}
cGraphtftFont::~cGraphtftFont()
{
Clear();
#if VDRVERSNUM < 10503
if (_face)
{
FT_Done_Face(_face);
}
if (_library)
{
FT_Done_FreeType(_library);
}
#endif
}
bool cGraphtftFont::Load(string Filename, string CacheName, int Size, int Language, int Width, int format)
{
if ( _cache.find(CacheName) != _cache.end() )
return true;
#if VDRVERSNUM >= 10504
//TODO: "Width" not yet in VDR
# ifdef VDRVERSNUM >= 10505
cFont *newFont = cFont::CreateFont(Filename.c_str(), Size, Width > 0 ? (Size * Width / 100) : 0);
# else
cFont *newFont = cFont::CreateFont(Filename.c_str(), Size);
# endif
if (newFont) {
_cache[CacheName] = newFont;
return true;
}
#elif VDRVERSNUM < 10503
int error = FT_New_Face(_library, Filename.c_str(), format, &_face);
// every thing ok?
if (error == FT_Err_Unknown_File_Format)
{
error("ERROR: Font file (%s) could be opened and read, but it appears that its font format is unsupported", Filename.c_str());
return false;
}
else if (error)
{
error("ERROR: Font file (%s) could be opened or read, or simply it is broken", Filename.c_str());
return false;
}
// set slot
_slot = _face->glyph;
if (Width > 0)
Width = Size * Width / 100;
// set Size
FT_Set_Char_Size
(
_face, // handle to face object
Width*64, // char_width in 1/64th of points
Size*64, // char_height in 1/64th of points
0, // horizontal device resolution (dpi)
0 // vertical device resolution (dpi)
);
iconv_t cd;
char from_code[255];
wchar_t utf_buff[256];
// XXX: Get this values from i18n
switch(Language) {
case 11:
strcpy(from_code,"ISO8859-7");
break;
case 13:
case 17:
strcpy(from_code,"ISO8859-2");
break;
case 16:
strcpy(from_code,"ISO8859-5");
break;
default :
strcpy(from_code,"ISO8859-15");
break;
}
if ((cd = iconv_open("WCHAR_T",from_code)) == (iconv_t)-1) {
esyslog("ERROR: Iconv encoding not supported: %m");
return false; //encoding no supportet
}
for (int c = 0; c < 256; c++) {
char char_buff = c;
wchar_t wchar_buff;
char *in_buff,*out_buff;
size_t in_len, out_len, count;
in_len=1; out_len=4;
in_buff=(char*)&char_buff;
out_buff=(char *)&wchar_buff;
count = iconv(cd,&in_buff,&in_len,&out_buff,&out_len);
if ( (size_t)-1 == count ){
//printf("ERROR - PREPARING TABLE CHAR %d \n", c);
utf_buff[c] = 0;
}
utf_buff[c] = wchar_buff;
}
iconv_close(cd);
cFont::tPixelData value;
int num_rows_global = (_face->size->metrics.height / 64 )+1;
int num_rows = num_rows_global + 2;
cFont::tPixelData * font_data = new cFont::tPixelData[225 * num_rows];
for (int i = 0; i < 225; i++)
for (int j = 0; j < num_rows; j++)
font_data[(i*num_rows)+j]=0x0000000000000000;
// Time to put char 32..255 in font_data
FT_UInt glyph_index;
for ( int num_char = 32, num_char_array = 0; num_char < 256; num_char++, num_char_array++ )
{
//Get FT char index
glyph_index = FT_Get_Char_Index( _face, utf_buff[num_char] );
//Load the char
error = FT_Load_Glyph( _face, glyph_index, FT_LOAD_DEFAULT );
if ( error ) continue; /* ignore errors */
// now, convert to vdr font data
int width = (_slot->metrics.horiAdvance / 64) + 1;
int bearingX = (_slot->metrics.horiBearingX / 64) +1;
width = (width > (int)sizeof(cFont::tPixelData) * 8) ? (((int)sizeof(cFont::tPixelData) * 8)-2) :width ;
font_data[(num_char_array*num_rows)+0]=width;
font_data[(num_char_array*num_rows)+1]=num_rows_global;
// convert to a mono bitmap
error = FT_Render_Glyph( _face->glyph, ft_render_mode_mono );
if ( error ) continue;
int top = _slot->bitmap_top;
int y_off = Size - top;
unsigned char *bmp = _slot->bitmap.buffer;
for (int y = 0; y < _slot->bitmap.rows; ++y , y_off++) {
int pos = 0;
int bit = 0x80;
value = 0x00;
for (int x = 0; x < _slot->bitmap.width; ++x) {
if (bmp[pos] & bit && x < width + 1 )
value = value | (cFont::tPixelData)1 << width - bearingX - x ;
bit >>= 1;
if (bit == 0) {
bit = 0x80;
++pos;
}
}
bmp += _slot->bitmap.pitch;
font_data[(num_char_array*num_rows)+y_off+2] = value;
}
}
// If all was ok, put the vdr font into the cache and return true
cFont* newFont = NULL;
newFont = new cFont(font_data);
if (newFont) {
_cache[CacheName] = newFont;
_del[CacheName] = font_data;
return true;
}
delete(font_data);
#endif //VDRVERSNUM >= 10504
// Something went wrong!
return false;
}
const cFont* cGraphtftFont::GetFont(string CacheName){
if (CacheName == "Sml") return cFont::GetFont(fontSml);
else if (CacheName == "Fix") return cFont::GetFont(fontFix);
else if ( _cache.find(CacheName) != _cache.end() ){
return _cache[CacheName];
}
return cFont::GetFont(fontOsd);
}
void cGraphtftFont::Clear(string CacheName)
{
Clear();
}
void cGraphtftFont::Clear()
{
cache_map::iterator it = _cache.begin();
for (; it != _cache.end(); ++it)
delete((*it).second);
_cache.clear();
#if VDRVERSNUM < 10503
del_map::iterator del_it = _del.begin();
for (; del_it != _del.end(); ++del_it)
delete[]((*del_it).second);
_del.clear();
#endif
}
#endif //VDRVERSNUM < 10503
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