be2b5537b3
even when FORKED_FONTS is not set. * No longer undef'ing SDL_thread stuff when FORKED_FONTS is used if we're ALSO not using SDL_Pango, since that now uses a thread to let fontconfig generate its cache, and still let Tux Paint be responsive to the OS and user. (SF.net bug #2944951) * Spawning a thread and rendering a dummy string with SDL_Pango, to allow fontconfig to generate its cache. (SF.net bug #2944951) * Setting up 'busy' mouse cursor (watch-shaped) earlier (so it can happen while fontconfig cache thread runs). * Not spawning forked font scanner (FORKED_FONTS) as early, so fontconfig can generate its cache first. (I wasn't sure if calling an SDL_thread after a fork() occured was safe or not; admittedly, I discovered that SDL_thread spawning wasn't working due to the re-#defines of those functions when FORKED_FONTS was set; see above.) All of this only tested on Ubuntu 9.04. Forced disabling of FORKED_FONTS by editing fonts.h, and Tux Paint still worked (it just took longer at the splash screen while the fonts were loaded). Needs testing on various Windows, Mac OS X and BeOS.
198 lines
5.2 KiB
C
198 lines
5.2 KiB
C
/*
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fonts.h
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Copyright (c) 2009
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http://www.tuxpaint.org/
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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(See COPYING.txt)
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$Id$
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*/
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#ifndef FONTS_H
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#define FONTS_H
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// plan to rip this out as soon as it is considered stable
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//#define THREADED_FONTS
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#define FORKED_FONTS
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#if defined(WIN32) || defined(__BEOS__)
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#undef FORKED_FONTS
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#endif
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#ifdef __APPLE__
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#undef FORKED_FONTS
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#endif
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#include "SDL.h"
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#include "SDL_ttf.h"
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#ifndef NO_SDLPANGO
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#include "SDL_Pango.h"
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#endif
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#define PANGO_DEFAULT_FONT "BitStream Vera"
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#include "compiler.h"
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/* Disable threaded font loading on Windows */
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#if !defined(FORKED_FONTS) && !defined(WIN32)
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#include "SDL_thread.h"
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#include "SDL_mutex.h"
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#else
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/* This shouldn't really be here :-)
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* Move into 'fonts.c' and the code in 'tuxpaint.c'
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* that uses this lot should be put into 'fonts.c' as well.
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*/
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#ifdef NO_SDLPANGO
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/* Only kill SDL_thread stuff when we're not using Pango, because we need it to let fontconfig make its cache (takes a long time the first time) -bjk 2010.04.27 */
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#define SDL_CreateThread(fn,vp) (void*)(long)(fn(vp))
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#define SDL_WaitThread(tid,rcp) do{(void)tid;(void)rcp;}while(0)
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#define SDL_Thread int
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#define SDL_mutex int
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#define SDL_CreateMutex() 0 // creates in released state
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#define SDL_DestroyMutex(lock)
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#define SDL_mutexP(lock) // take lock
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#define SDL_mutexV(lock) // release lock
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#endif
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#endif
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extern SDL_Thread *font_thread;
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extern volatile long font_thread_done;
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extern volatile long font_thread_aborted;
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extern volatile long waiting_for_fonts;
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extern int font_socket_fd;
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extern int no_system_fonts;
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extern int all_locale_fonts;
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/* FIXME: SDL_ttf is up to 2.0.8, so we can probably fully remove this;
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-bjk 2007.06.05 */
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/*
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TTF_Font *BUGFIX_TTF_OpenFont206(const char *const file, int ptsize);
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#define TTF_OpenFont BUGFIX_TTF_OpenFont206
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*/
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/* Stuff that wraps either SDL_Pango or SDL_TTF for font rendering: */
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enum {
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#ifndef NO_SDLPANGO
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FONT_TYPE_PANGO,
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#endif
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FONT_TYPE_TTF
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};
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typedef struct TuxPaint_Font_s {
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#ifndef NO_SDLPANGO
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SDLPango_Context * pango_context;
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#endif
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int typ;
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TTF_Font * ttf_font;
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int height;
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} TuxPaint_Font;
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int TuxPaint_Font_FontHeight(TuxPaint_Font * tpf);
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#ifdef FORKED_FONTS
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void reliable_write(int fd, const void *buf, size_t count);
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static void reliable_read(int fd, void *buf, size_t count);
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void run_font_scanner(SDL_Surface * screen, const char *restrict const locale);
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void receive_some_font_info(SDL_Surface * screen);
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#endif
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//////////////////////////////////////////////////////////////////////
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// font stuff
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// example from a Debian box with MS fonts:
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// start with 232 files
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// remove "Cursor", "Webdings", "Dingbats", "Standard Symbols L"
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// split "Condensed" faces out into own family
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// group by family
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// end up with 34 user choices
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extern int text_state;
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extern unsigned text_size;
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// nice progression (alternating 33% and 25%) 9 12 18 24 36 48 72 96 144 192
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// commonly hinted sizes seem to be: 9, 10, 12, 14, 18, 20 (less so), 24
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// reasonable: 9,12,18... and 10,14,18...
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static int text_sizes[] = {
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#ifndef OLPC_XO
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9,
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#endif
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12, 18, 24, 36, 48,
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56, 64, 96, 112, 128, 160
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}; // point sizes
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#define MIN_TEXT_SIZE 0u
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#define MAX_TEXT_SIZE (sizeof text_sizes / sizeof text_sizes[0] - 1)
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// for sorting through the font files at startup
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typedef struct style_info
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{
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char *filename;
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char *directory;
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char *family; // name like "FooCorp Thunderstruck"
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char *style; // junk like "Oblique Demi-Bold"
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int italic;
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int boldness;
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int score;
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int truetype; // Is it? (TrueType gets priority)
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} style_info;
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// user's notion of a font
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typedef struct family_info
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{
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char *directory;
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char *family;
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char *filename[4];
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TuxPaint_Font *handle;
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int score;
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} family_info;
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extern TuxPaint_Font *medium_font, *small_font, *large_font, *locale_font;
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extern family_info **user_font_families;
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extern int num_font_families;
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extern style_info **user_font_styles;
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extern int num_font_styles;
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extern int num_font_styles_max;
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extern int button_label_y_nudge;
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TuxPaint_Font *getfonthandle(int desire);
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int charset_works(TuxPaint_Font * font, const char *s);
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TuxPaint_Font * TuxPaint_Font_OpenFont(const char * pangodesc, const char * ttffilename, int size);
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void TuxPaint_Font_CloseFont(TuxPaint_Font * tpf);
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const char * TuxPaint_Font_FontFaceFamilyName(TuxPaint_Font * tpf);
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const char * TuxPaint_Font_FontFaceStyleName(TuxPaint_Font * tpf);
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#ifdef NO_SDLPANGO
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TuxPaint_Font *load_locale_font(TuxPaint_Font * fallback, int size);
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#else
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void sdl_color_to_pango_color(SDL_Color sdl_color, SDLPango_Matrix *pango_color);
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#endif
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int load_user_fonts(SDL_Surface * screen, void *vp, const char *restrict const locale);
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#endif
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