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fs2open.github.com/code/graphics/font.cpp
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/*
* Copyright (C) Volition, Inc. 1999. All rights reserved.
*
* All source code herein is the property of Volition, Inc. You may not sell
* or otherwise commercially exploit the source or things you created based on the
* source.
*
*/
/*
* $Logfile: /Freespace2/code/Graphics/Font.cpp $
* $Revision: 2.14 $
* $Date: 2005-07-02 19:42:15 $
* $Author: taylor $
*
* source file for font stuff
*
* $Log: not supported by cvs2svn $
* Revision 2.13 2005/05/12 17:49:12 taylor
* use vm_malloc(), vm_free(), vm_realloc(), vm_strdup() rather than system named macros
* fixes various problems and is past time to make the switch
*
* Revision 2.12 2005/01/31 23:27:53 taylor
* merge with Linux/OSX tree - p0131-2
*
* Revision 2.11 2004/07/26 20:47:31 Kazan
* remove MCD complete
*
* Revision 2.10 2004/07/17 18:46:07 taylor
* various OGL and memory leak fixes
*
* Revision 2.9 2004/07/12 16:32:48 Kazan
* MCD - define _MCD_CHECK to use memory tracking
*
* Revision 2.8 2004/02/20 04:29:54 bobboau
* pluged memory leaks,
* 3D HTL lasers (they work perfictly)
* and posably fixed Turnsky's shinemap bug
*
* Revision 2.7 2004/02/14 00:18:31 randomtiger
* Please note that from now on OGL will only run with a registry set by Launcher v4. See forum for details.
* OK, these changes effect a lot of file, I suggest everyone updates ASAP:
* Removal of many files from project.
* Removal of meanless Gr_bitmap_poly variable.
* Removal of glide, directdraw, software modules all links to them, and all code specific to those paths.
* Removal of redundant Fred paths that arent needed for Fred OGL.
* Have seriously tidied the graphics initialisation code and added generic non standard mode functionality.
* Fixed many D3D non standard mode bugs and brought OGL up to the same level.
* Removed texture section support for D3D8, voodoo 2 and 3 cards will no longer run under fs2_open in D3D, same goes for any card with a maximum texture size less than 1024.
*
* Revision 2.6 2004/01/24 12:47:48 randomtiger
* Font and other small changes for Fred
*
* Revision 2.5 2004/01/19 00:56:09 randomtiger
* Some more small changes for Fred OGL
*
* Revision 2.4 2003/03/02 05:41:52 penguin
* Added some #ifndef NO_SOFTWARE_RENDERING
* - penguin
*
* Revision 2.3 2002/08/01 01:41:05 penguin
* The big include file move
*
* Revision 2.2 2002/07/29 20:12:31 penguin
* added #ifdef _WIN32 around windows-specific system headers
*
* Revision 2.1 2002/07/07 19:55:59 penguin
* Back-port to MSVC
*
* Revision 2.0 2002/06/03 04:02:22 penguin
* Warpcore CVS sync
*
* Revision 1.2 2002/05/16 13:43:25 mharris
* ifdef WIN32 around (unused?) win-specific code
*
* Revision 1.1 2002/05/02 18:03:07 mharris
* Initial checkin - converted filenames and includes to lower case
*
*
* 9 7/09/99 10:32p Dave
* Command brief and red alert screens.
*
* 8 12/14/98 9:21a Dan
* Put gr8_string() back in
*
* 7 12/02/98 5:47p Dave
* Put in interface xstr code. Converted barracks screen to new format.
*
* 6 11/30/98 1:07p Dave
* 16 bit conversion, first run.
*
* 5 11/05/98 4:18p Dave
* First run nebula support. Beefed up localization a bit. Removed all
* conditional compiles for foreign versions. Modified mission file
* format.
*
* 4 10/13/98 9:28a Dave
* Started neatening up freespace.h. Many variables renamed and
* reorganized. Added AlphaColors.[h,cpp]
*
* 3 10/13/98 9:19a Andsager
* Add localization support to cfile. Optional parameter with cfopen that
* looks for localized files.
*
* 2 10/07/98 10:52a Dave
* Initial checkin.
*
* 1 10/07/98 10:49a Dave
*
* 49 7/02/98 3:41p Allender
* fix nasty assembler bug where pushf wasn't accompanied by corresponding
* pop in certain clipping conditions -- manifested only in software and
* usually on the PXO chat screen.
*
* 48 6/18/98 10:10a Allender
* fixed compiler warnings
*
* 47 6/13/98 10:48p Lawrance
* Changed code to utilize proper fixed-space 1 character.
*
* 46 6/13/98 3:18p Hoffoss
* NOX()ed out a bunch of strings that shouldn't be translated.
*
* 45 5/25/98 10:32a John
* Took out redundant code for font bitmap offsets that converted to a
* float, then later on converted back to an integer. Quite unnecessary.
*
* 44 5/12/98 11:45a John
* Fixed a bug with the length of string being passed to
* gr_get_string_size. The bug occurred if you had two or more'\n'''s in
* a row.
*
* 43 3/10/98 4:18p John
* Cleaned up graphics lib. Took out most unused gr functions. Made D3D
* & Glide have popups and print screen. Took out all >8bpp software
* support. Made Fred zbuffer. Made zbuffer allocate dynamically to
* support Fred. Made zbuffering key off of functions rather than one
* global variable.
*
* 42 3/09/98 6:06p John
* Restructured font stuff to avoid duplicate code in Direct3D and Glide.
* Restructured Glide to avoid redundent state setting.
*
* 41 3/02/98 10:33a John
* Fixed bug where Y clip was using X value.
*
* 40 2/19/98 9:04a John
* Fixed fonts with glide
*
* 39 2/17/98 7:27p John
* Got fonts and texturing working in Direct3D
*
* 38 2/05/98 9:21p John
* Some new Direct3D code. Added code to monitor a ton of stuff in the
* game.
*
* 37 1/20/98 2:25p Hoffoss
* Fixed bug where timestamp printing incorrectly increments an hour at 6
* minutes.
*
* 36 1/19/98 6:15p John
* Fixed all my Optimized Build compiler warnings
*
* 35 11/30/97 12:18p John
* added more 24 & 32-bpp primitives
*
* 34 11/29/97 2:24p John
* fixed warnings
*
* 33 11/29/97 2:06p John
* added mode 16-bpp support
*
* 32 11/10/97 2:35p Hoffoss
* Changed timestamp printing code to utilize new fixed-space '1'
* character.
*
* 31 11/06/97 5:42p Hoffoss
* Added support for fixed size timstamp rendering.
*
* 30 11/03/97 10:08p Hoffoss
* Changed gr_get_string_size to utilize an optional length specifier, if
* you want to use non-null terminated strings.
*
* 29 11/03/97 10:59a John
* added support for more than one font.
*
* 28 10/24/97 12:13p Hoffoss
* Added gr_force_fit_string().
*
* 27 10/19/97 12:55p John
* new code to lock / unlock surfaces for smooth directx integration.
*
* 26 10/14/97 4:50p John
* more 16 bpp stuff.
*
* 25 10/14/97 8:08a John
* added a bunch more 16 bit support
*
* 24 10/09/97 5:23p John
* Added support for more 16-bpp functions
*
* 23 9/23/97 10:53a Hoffoss
* Fixed bug in assumptions made half the time, and not the other half.
*
* 22 9/09/97 3:39p Sandeep
* warning level 4 bugs
*
* 21 8/19/97 5:46p Hoffoss
* Changed font used in Fred, and added display to show current eye
* position.
*
* 20 6/25/97 2:35p John
* added some functions to use the windows font for Fred.
*
* 19 6/17/97 12:03p John
* Moved color/alphacolor functions into their own module. Made all color
* functions be part of the low-level graphics drivers, not just the
* grsoft.
*
* 18 6/13/97 2:37p John
* fixed a string bug that printed weird characters sometimes.
*
* 17 6/11/97 6:00p John
* sped up alpha matching a bit.
*
* 16 6/11/97 5:49p John
* Changed palette code to only recalculate alphacolors when needed, not
* when palette changes.
*
* 15 6/11/97 5:01p John
* Fixed mission log text. Added fast clipped font drawer.
*
* 14 6/11/97 4:11p John
* addec function to get font height
*
* 13 6/11/97 1:12p John
* Started fixing all the text colors in the game.
*
* 12 6/09/97 9:24a John
* Changed the way fonts are set.
*
* 11 6/06/97 4:41p John
* Fixed alpha colors to be smoothly integrated into gr_set_color_fast
* code.
*
* 10 6/06/97 2:40p John
* Made all the radar dim in/out
*
* 9 6/05/97 4:53p John
* First rev of new antialiased font stuff.
*
* 8 5/12/97 12:27p John
* Restructured Graphics Library to add support for multiple renderers.
*
* 7 4/24/97 11:28a Hoffoss
* added code to handle gr_String being called before gr_init_font ever
* was called
*
* 6 4/23/97 5:26p John
* First rev of new debug console stuff.
*
* 5 4/22/97 12:20p John
* fixed more resource leaks
*
* 4 4/22/97 10:33a John
* fixed the 2d resource leaks that Alan found.
*
* 3 4/04/97 11:21a Hoffoss
* JOHN: Fixed invalid param that caused a trap in BoundsChecker.
*
* 2 4/01/97 9:26a Allender
* added support for descent style fonts although they are not used in the
* game yet
*
* 1 3/31/97 9:42a Allender
*
* $NoKeywords: $
*/
#ifdef _WIN32
#include <windows.h>
#include <windowsx.h>
#endif
#include <stdio.h>
#include <stdarg.h>
#include "graphics/grinternal.h"
#include "graphics/2d.h"
#include "cfile/cfile.h"
#include "graphics/font.h"
#include "palman/palman.h"
#include "io/key.h"
#include "bmpman/bmpman.h"
#include "localization/localize.h"
#include "globalincs/systemvars.h"
int Num_fonts = 0;
font Fonts[MAX_FONTS];
font *Current_font = NULL;
// crops a string if required to force it to not exceed max_width pixels when printed.
// Does this by dropping characters at the end of the string and adding '...' to the end.
// str = string to crop. Modifies this string directly
// max_str = max characters allowed in str
// max_width = number of pixels to limit string to (less than or equal to).
// Returns: returns same pointer passed in for str.
char *gr_force_fit_string(char *str, int max_str, int max_width)
{
int w;
gr_get_string_size(&w, NULL, str);
if (w > max_width) {
if ((int) strlen(str) > max_str - 3) {
Assert(max_str >= 3);
str[max_str - 3] = 0;
}
strcpy(str + strlen(str) - 1, "...");
gr_get_string_size(&w, NULL, str);
while (w > max_width) {
Assert(strlen(str) >= 4); // if this is hit, a bad max_width was passed in and the calling function needs fixing.
strcpy(str + strlen(str) - 4, "...");
gr_get_string_size(&w, NULL, str);
}
}
return str;
}
//takes the character BEFORE being offset into current font
// Returns the letter code
int get_char_width(ubyte c1,ubyte c2,int *width,int *spacing)
{
int i, letter;
Assert ( Current_font != NULL );
letter = c1-Current_font->first_ascii;
if (letter<0 || letter>=Current_font->num_chars) { //not in font, draw as space
*width=0;
*spacing = Current_font->w;
return -1;
}
*width = Current_font->char_data[letter].byte_width;
*spacing = Current_font->char_data[letter].spacing;
i = Current_font->char_data[letter].kerning_entry;
if ( i > -1) {
if (!(c2==0 || c2=='\n')) {
int letter2;
letter2 = c2-Current_font->first_ascii;
if ((letter2>=0) && (letter2<Current_font->num_chars) ) { //not in font, draw as space
font_kernpair *k = &Current_font->kern_data[i];
while( (k->c1 == (char)letter) && (k->c2<(char)letter2) && (i<Current_font->num_kern_pairs) ) {
i++;
k++;
}
if ( k->c2 == (char)letter2 ) {
*spacing += k->offset;
}
}
}
}
return letter;
}
// NOTE: this returns an unscaled size for non-standard resolutions
int get_centered_x(char *s)
{
int w,w2,s2;
for (w=0;*s!=0 && *s!='\n';s++) {
get_char_width(s[0],s[1],&w2,&s2);
w += s2;
}
return ((gr_screen.clip_width_unscaled - w) / 2);
}
// draws a character centered on x
void gr_char_centered(int x, int y, char chr)
{
char str[2];
int w, sc;
sc = Lcl_special_chars;
if (chr == '1')
chr = (char)(sc + 1);
str[0] = chr;
str[1] = 0;
gr_get_string_size(&w, NULL, str);
gr_string(x - w / 2, y, str);
}
void gr_print_timestamp(int x, int y, int timestamp)
{
char h[2], m[3], s[3];
int w, c;
// format the time information into strings
sprintf(h, "%.1d", (timestamp / 3600000) % 10);
sprintf(m, "%.2d", (timestamp / 60000) % 60);
sprintf(s, "%.2d", (timestamp / 1000) % 60);
gr_get_string_size(&w, NULL, "0");
gr_get_string_size(&c, NULL, ":");
gr_string(x + w, y, ":");
gr_string(x + w * 3 + c, y, ":");
x += w / 2;
gr_char_centered(x, y, h[0]);
x += w + c;
gr_char_centered(x, y, m[0]);
x += w;
gr_char_centered(x, y, m[1]);
x += w + c;
gr_char_centered(x, y, s[0]);
x += w;
gr_char_centered(x, y, s[1]);
}
int gr_get_font_height()
{
if (Current_font) {
return Current_font->h;
} else {
return 16;
}
}
void gr_get_string_size(int *w1, int *h1, char *text, int len)
{
int longest_width;
int width,spacing;
int w, h;
if (!Current_font) {
if ( w1)
*w1 = 16;
if ( h1 )
*h1 = 16;
return;
}
w = 0;
h = 0;
longest_width = 0;
if (text != NULL ) {
h += Current_font->h;
while (*text && (len>0) ) {
// Process one or more
while ((*text == '\n') && (len>0) ) {
text++;
len--;
if ( *text ) {
h += Current_font->h;
}
w = 0;
}
if (*text == 0) {
break;
}
get_char_width(text[0], text[1], &width, &spacing);
w += spacing;
if (w > longest_width)
longest_width = w;
text++;
len--;
}
}
if ( h1 )
*h1 = h;
if ( w1 )
*w1 = longest_width;
}
MONITOR( FontChars );
/*
void gr8_char(int x,int y,int letter)
{
font_char *ch;
ch = &Current_font->char_data[letter];
gr_aabitmap_ex( x, y, ch->byte_width, Current_font->h, Current_font->u[letter], Current_font->v[letter] );
// mprintf(( "String = %s\n", text ));
}
void gr8_string( int sx, int sy, char *s )
{
int width, spacing, letter;
int x, y;
if ( !Current_font ) return;
if ( !s ) return;
gr_set_bitmap(Current_font->bitmap);
x = sx;
y = sy;
if (sx==0x8000) { //centered
x = get_centered_x(s);
} else {
x = sx;
}
while (*s) {
while (*s== '\n' ) {
s++;
y += Current_font->h;
if (sx==0x8000) { //centered
x = get_centered_x(s);
} else {
x = sx;
}
}
if (*s == 0 ) break;
letter = get_char_width(s[0],s[1],&width,&spacing);
if (letter<0) { //not in font, draw as space
x += spacing;
s++;
continue;
}
gr8_char( x, y, letter );
x += spacing;
s++;
}
}
*/
/*
void gr8_string(int sx, int sy, char *s )
{
int row,width, spacing, letter;
int x, y;
if ( !Current_font ) return;
if ( !s ) return;
x = sx;
y = sy;
if (sx==0x8000) { //centered
x = get_centered_x(s);
} else {
x = sx;
}
spacing = 0;
gr_lock();
while (*s) {
MONITOR_INC( FontChars, 1 );
x += spacing;
while (*s== '\n' ) {
s++;
y += Current_font->h;
if (sx==0x8000) { //centered
x = get_centered_x(s);
} else {
x = sx;
}
}
if (*s == 0 ) break;
letter = get_char_width(s[0],s[1],&width,&spacing);
s++;
//If not in font, draw as space
if (letter<0) continue;
int xd, yd, xc, yc;
int wc, hc;
// Check if this character is totally clipped
if ( x + width < gr_screen.clip_left ) continue;
if ( y + Current_font->h < gr_screen.clip_top ) continue;
if ( x > gr_screen.clip_right ) continue;
if ( y > gr_screen.clip_bottom ) continue;
xd = yd = 0;
if ( x < gr_screen.clip_left ) xd = gr_screen.clip_left - x;
if ( y < gr_screen.clip_top ) yd = gr_screen.clip_top - y;
xc = x+xd;
yc = y+yd;
wc = width - xd; hc = Current_font->h - yd;
if ( xc + wc > gr_screen.clip_right ) wc = gr_screen.clip_right - xc;
if ( yc + hc > gr_screen.clip_bottom ) hc = gr_screen.clip_bottom - yc;
if ( wc < 1 ) continue;
if ( hc < 1 ) continue;
ubyte *fp = Current_font->pixel_data + Current_font->char_data[letter].offset + xd + yd*width;
ubyte *dptr = GR_SCREEN_PTR(ubyte, xc, yc);
#ifndef HARDWARE_ONLY
if ( Current_alphacolor ) {
for (row=0; row<hc; row++) {
#ifdef USE_INLINE_ASM
ubyte *lookup = &Current_alphacolor->table.lookup[0][0];
_asm mov edx, lookup
_asm xor eax, eax
_asm mov ecx, wc
_asm xor ebx, ebx
_asm mov edi, dptr
_asm mov esi, fp
_asm shr ecx, 1
_asm jz OnlyOne
_asm pushf
InnerFontLoop:
_asm mov al, [edi]
_asm mov bl, [edi+1]
_asm add edi,2
_asm mov ah, [esi]
_asm mov bh, [esi+1]
_asm add esi,2
_asm mov al, [edx+eax]
_asm mov ah, [edx+ebx]
_asm mov [edi-2], ax
_asm dec ecx
_asm jnz InnerFontLoop
_asm popf
_asm jnc NotOdd
OnlyOne:
_asm mov al, [edi]
_asm mov ah, [esi]
_asm mov al, [edx+eax]
_asm mov [edi], al
NotOdd:
dptr += gr_screen.rowsize;
fp += width;
#else
int i;
for (i=0; i< wc; i++ ) {
*dptr++ = Current_alphacolor->table.lookup[*fp++][*dptr];
}
fp += width - wc;
dptr += gr_screen.rowsize - wc;
#endif
}
} else { // No alpha color
#endif
for (row=0; row<hc; row++) {
int i;
for (i=0; i< wc; i++ ) {
if (*fp > 5 )
*dptr = gr_screen.current_color.raw8;
dptr++;
fp++;
}
fp += width - wc;
dptr += gr_screen.rowsize - wc;
}
// }
}
gr_unlock();
}
*/
#ifdef _WIN32
HFONT MyhFont = NULL;
HDC hDibDC = NULL;
void gr_string_win(int x, int y, char *s)
{
int old_bitmap = gr_screen.current_bitmap;
gr_set_font(FONT1);
gr_string(x,y,s);
gr_screen.current_bitmap = old_bitmap;
}
void gr_get_string_size_win(int *w, int *h, char *text)
{
char *ptr;
SIZE size;
ptr = strchr(text, '\n');
if (MyhFont==NULL) {
if (w) *w = 0;
if (h) *h = 0;
return;
}
SelectObject( hDibDC, MyhFont );
if (!ptr) {
GetTextExtentPoint32( hDibDC, text, strlen(text), &size);
if (w) *w = size.cx;
if (h) *h = size.cy;
return;
}
GetTextExtentPoint32(hDibDC, text, ptr - text, &size);
gr_get_string_size_win(w, h, ptr+1);
if (w && (size.cx > *w) )
*w = size.cx;
if (h)
*h += size.cy;
}
#endif // ifdef _WIN32
char grx_printf_text[2048];
void _cdecl gr_printf( int x, int y, char * format, ... )
{
va_list args;
if ( !Current_font ) return;
va_start(args, format);
vsprintf(grx_printf_text,format,args);
va_end(args);
gr_string(x,y,grx_printf_text);
}
void _cdecl gr_printf_no_resize( int x, int y, char * format, ... )
{
va_list args;
if ( !Current_font ) return;
va_start(args, format);
vsprintf(grx_printf_text,format,args);
va_end(args);
gr_string(x,y,grx_printf_text,false);
}
void gr_font_close()
{
font *fnt;
int i;
fnt = Fonts;
for (i=0; i<Num_fonts; i++) {
if (fnt->kern_data) {
vm_free(fnt->kern_data);
fnt->kern_data = NULL;
}
if (fnt->char_data) {
vm_free(fnt->char_data);
fnt->char_data = NULL;
}
if (fnt->pixel_data) {
vm_free(fnt->pixel_data);
fnt->pixel_data = NULL;
}
if (fnt->bm_data) {
vm_free(fnt->bm_data);
fnt->bm_data = NULL;
}
if (fnt->bm_u) {
vm_free(fnt->bm_u);
fnt->bm_u = NULL;
}
if (fnt->bm_v) {
vm_free(fnt->bm_v);
fnt->bm_v = NULL;
}
fnt++;
}
}
// Returns -1 if couldn't init font, otherwise returns the
// font id number.
int gr_create_font(char * typeface)
{
CFILE *fp;
font *fnt;
int n, fontnum;
fnt = Fonts;
n = -1;
for (fontnum=0; fontnum<Num_fonts; fontnum++ ) {
if (fnt->id != 0 ) {
if ( !_strnicmp( fnt->filename, typeface, MAX_FILENAME_LEN ) ) {
return fontnum;
}
} else {
if ( n < 0 ) {
n = fontnum;
}
}
fnt++;
}
if ( fontnum==MAX_FONTS ) {
Error( LOCATION, "Too many fonts!\nSee John, or change MAX_FONTS in Graphics\\Font.h\n" );
}
if ( fontnum == Num_fonts ) {
Num_fonts++;
}
bool localize = true;
fp = cfopen( typeface, "rb", CFILE_NORMAL, CF_TYPE_ANY, localize );
if ( fp == NULL ) return -1;
strncpy( fnt->filename, typeface, MAX_FILENAME_LEN );
cfread( &fnt->id, 4, 1, fp );
cfread( &fnt->version, sizeof(int), 1, fp );
cfread( &fnt->num_chars, sizeof(int), 1, fp );
cfread( &fnt->first_ascii, sizeof(int), 1, fp );
cfread( &fnt->w, sizeof(int), 1, fp );
cfread( &fnt->h, sizeof(int), 1, fp );
cfread( &fnt->num_kern_pairs, sizeof(int), 1, fp );
cfread( &fnt->kern_data_size, sizeof(int), 1, fp );
cfread( &fnt->char_data_size, sizeof(int), 1, fp );
cfread( &fnt->pixel_data_size, sizeof(int), 1, fp );
fnt->id = INTEL_SHORT( fnt->id );
fnt->version = INTEL_INT( fnt->version );
fnt->num_chars = INTEL_INT( fnt->num_chars );
fnt->first_ascii = INTEL_INT( fnt->first_ascii );
fnt->w = INTEL_INT( fnt->w );
fnt->h = INTEL_INT( fnt->h );
fnt->num_kern_pairs = INTEL_INT( fnt->num_kern_pairs );
fnt->kern_data_size = INTEL_INT( fnt->kern_data_size );
fnt->char_data_size = INTEL_INT( fnt->char_data_size );
fnt->pixel_data_size = INTEL_INT( fnt->pixel_data_size );
if ( fnt->kern_data_size ) {
fnt->kern_data = (font_kernpair *)vm_malloc( fnt->kern_data_size );
Assert(fnt->kern_data!=NULL);
cfread( fnt->kern_data, fnt->kern_data_size, 1, fp );
} else {
fnt->kern_data = NULL;
}
if ( fnt->char_data_size ) {
fnt->char_data = (font_char *)vm_malloc( fnt->char_data_size );
Assert( fnt->char_data != NULL );
cfread( fnt->char_data, fnt->char_data_size, 1, fp );
for (int i=0; i<fnt->num_chars; i++) {
fnt->char_data[i].spacing = INTEL_INT( fnt->char_data[i].spacing );
fnt->char_data[i].byte_width = INTEL_INT( fnt->char_data[i].byte_width );
fnt->char_data[i].offset = INTEL_INT( fnt->char_data[i].offset );
fnt->char_data[i].kerning_entry = INTEL_INT( fnt->char_data[i].kerning_entry );
fnt->char_data[i].user_data = INTEL_SHORT( fnt->char_data[i].user_data );
}
} else {
fnt->char_data = NULL;
}
if ( fnt->pixel_data_size ) {
fnt->pixel_data = (ubyte *)vm_malloc( fnt->pixel_data_size );
Assert(fnt->pixel_data!=NULL);
cfread( fnt->pixel_data, fnt->pixel_data_size, 1, fp );
} else {
fnt->pixel_data = NULL;
}
cfclose(fp);
// Create a bitmap for hardware cards.
// JAS: Try to squeeze this into the smallest square power of two texture.
// This should probably be done at font generation time, not here.
int w, h;
if ( fnt->pixel_data_size < 64*64 ) {
w = h = 64;
} else if ( fnt->pixel_data_size < 128*128 ) {
w = h = 128;
} else {
w = h = 256;
}
fnt->bm_w = w;
fnt->bm_h = h;
fnt->bm_data = (ubyte *)vm_malloc(fnt->bm_w*fnt->bm_h);
fnt->bm_u = (int *)vm_malloc(sizeof(int)*fnt->num_chars);
fnt->bm_v = (int *)vm_malloc(sizeof(int)*fnt->num_chars);
int i,x,y;
x = y = 0;
for (i=0; i<fnt->num_chars; i++ ) {
ubyte * fp;
int x1, y1;
fp = &fnt->pixel_data[fnt->char_data[i].offset];
if ( x + fnt->char_data[i].byte_width >= fnt->bm_w ) {
x = 0;
y += fnt->h;
if ( y+fnt->h > fnt->bm_h ) {
Error( LOCATION, "Font too big!\n" );
}
}
fnt->bm_u[i] = x;
fnt->bm_v[i] = y;
for( y1=0; y1<fnt->h; y1++ ) {
for (x1=0; x1<fnt->char_data[i].byte_width; x1++ ) {
uint c = *fp++;
if ( c > 14 ) c = 14;
fnt->bm_data[(x+x1)+(y+y1)*fnt->bm_w] = (unsigned char)(c);
}
}
x += fnt->char_data[i].byte_width;
}
fnt->bitmap_id = bm_create( 8, fnt->bm_w, fnt->bm_h, fnt->bm_data, BMP_AABITMAP );
return fontnum;
}
void grx_set_font(int fontnum)
{
if ( fontnum < 0 ) {
Current_font = NULL;
return;
}
if ( fontnum >= 0 ) {
Current_font = &Fonts[fontnum];
}
}
void gr_font_init()
{
gr_init_font( NOX("font01.vf") );
gr_init_font( NOX("font02.vf") );
gr_init_font( NOX("font03.vf") );
}
// Returns -1 if couldn't init font, otherwise returns the
// font id number.
int gr_init_font(char * typeface)
{
int Loaded_fontnum;
Loaded_fontnum = gr_create_font(typeface);
Assert( Loaded_fontnum > -1 );
gr_set_font( Loaded_fontnum );
return Loaded_fontnum;
}
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