mirror of
https://github.com/FWGS/xash3d-fwgs
synced 2024-11-26 11:49:25 +01:00
377 lines
8.4 KiB
C
377 lines
8.4 KiB
C
/*
|
|
cl_font.c - bare bones engine font manager
|
|
Copyright (C) 2023 Alibek Omarov
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
*/
|
|
|
|
#include "common.h"
|
|
#include "filesystem.h"
|
|
#include "client.h"
|
|
#include "qfont.h"
|
|
|
|
qboolean CL_FixedFont( cl_font_t *font )
|
|
{
|
|
return font && font->valid && font->type == FONT_FIXED;
|
|
}
|
|
|
|
static int CL_LoadFontTexture( const char *fontname, uint texFlags, int *width )
|
|
{
|
|
int font_width;
|
|
int tex;
|
|
|
|
if( !g_fsapi.FileExists( fontname, false ))
|
|
return 0;
|
|
|
|
tex = ref.dllFuncs.GL_LoadTexture( fontname, NULL, 0, texFlags );
|
|
if( !tex )
|
|
return 0;
|
|
|
|
font_width = REF_GET_PARM( PARM_TEX_WIDTH, tex );
|
|
if( !font_width )
|
|
{
|
|
ref.dllFuncs.GL_FreeTexture( tex );
|
|
return 0;
|
|
}
|
|
|
|
*width = font_width;
|
|
return tex;
|
|
}
|
|
|
|
static int CL_FontRenderMode( convar_t *fontrender )
|
|
{
|
|
switch((int)fontrender->value )
|
|
{
|
|
case 0:
|
|
return kRenderTransAdd;
|
|
case 1:
|
|
return kRenderTransAlpha;
|
|
case 2:
|
|
return kRenderTransTexture;
|
|
default:
|
|
Cvar_DirectSet( fontrender, fontrender->def_string );
|
|
}
|
|
|
|
return kRenderTransTexture;
|
|
}
|
|
|
|
void CL_SetFontRendermode( cl_font_t *font )
|
|
{
|
|
ref.dllFuncs.GL_SetRenderMode( CL_FontRenderMode( font->rendermode ));
|
|
}
|
|
|
|
qboolean Con_LoadFixedWidthFont( const char *fontname, cl_font_t *font, float scale, convar_t *rendermode, uint texFlags )
|
|
{
|
|
int font_width, i;
|
|
|
|
if( !rendermode )
|
|
return false;
|
|
|
|
if( font->valid )
|
|
return true; // already loaded
|
|
|
|
font->hFontTexture = CL_LoadFontTexture( fontname, texFlags, &font_width );
|
|
if( !font->hFontTexture )
|
|
return false;
|
|
|
|
font->type = FONT_FIXED;
|
|
font->valid = true;
|
|
font->scale = scale;
|
|
font->rendermode = rendermode;
|
|
font->charHeight = Q_rint( font_width / 16 * scale );
|
|
|
|
for( i = 0; i < ARRAYSIZE( font->fontRc ); i++ )
|
|
{
|
|
font->fontRc[i].left = ( i * font_width / 16 ) % font_width;
|
|
font->fontRc[i].right = font->fontRc[i].left + font_width / 16;
|
|
font->fontRc[i].top = ( i / 16 ) * ( font_width / 16 );
|
|
font->fontRc[i].bottom = font->fontRc[i].top + font_width / 16;
|
|
|
|
font->charWidths[i] = Q_rint( font_width / 16 * scale );
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
qboolean Con_LoadVariableWidthFont( const char *fontname, cl_font_t *font, float scale, convar_t *rendermode, uint texFlags )
|
|
{
|
|
fs_offset_t length;
|
|
qfont_t src;
|
|
byte *pfile;
|
|
int font_width, i;
|
|
|
|
if( !rendermode )
|
|
return false;
|
|
|
|
if( font->valid )
|
|
return true;
|
|
|
|
pfile = g_fsapi.LoadFile( fontname, &length, false );
|
|
if( !pfile )
|
|
return false;
|
|
|
|
if( length < sizeof( src ))
|
|
{
|
|
Mem_Free( pfile );
|
|
return false;
|
|
}
|
|
|
|
memcpy( &src, pfile, sizeof( src ));
|
|
Mem_Free( pfile );
|
|
|
|
font->hFontTexture = CL_LoadFontTexture( fontname, texFlags, &font_width );
|
|
if( !font->hFontTexture )
|
|
return false;
|
|
|
|
font->type = FONT_VARIABLE;
|
|
font->valid = true;
|
|
font->scale = scale;
|
|
font->rendermode = rendermode;
|
|
font->charHeight = Q_rint( src.rowheight * scale );
|
|
|
|
for( i = 0; i < ARRAYSIZE( font->fontRc ); i++ )
|
|
{
|
|
const charinfo *ci = &src.fontinfo[i];
|
|
|
|
font->fontRc[i].left = (word)ci->startoffset % font_width;
|
|
font->fontRc[i].right = font->fontRc[i].left + ci->charwidth;
|
|
font->fontRc[i].top = (word)ci->startoffset / font_width;
|
|
font->fontRc[i].bottom = font->fontRc[i].top + src.rowheight;
|
|
|
|
font->charWidths[i] = Q_rint( src.fontinfo[i].charwidth * scale );
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void CL_FreeFont( cl_font_t *font )
|
|
{
|
|
if( !font || !font->valid )
|
|
return;
|
|
|
|
ref.dllFuncs.GL_FreeTexture( font->hFontTexture );
|
|
memset( font, 0, sizeof( *font ));
|
|
}
|
|
|
|
static int CL_CalcTabStop( const cl_font_t *font, int x )
|
|
{
|
|
int space = font->charWidths[' '];
|
|
int tab = space * 6; // 6 spaces
|
|
int stop = tab - x % tab;
|
|
|
|
if( stop < space )
|
|
return tab * 2 - x % tab; // select next
|
|
|
|
return stop;
|
|
}
|
|
|
|
int CL_DrawCharacter( float x, float y, int number, rgba_t color, cl_font_t *font, int flags )
|
|
{
|
|
wrect_t *rc;
|
|
float w, h;
|
|
float s1, t1, s2, t2, half = 0.5f;
|
|
int texw, texh;
|
|
|
|
if( !font || !font->valid || y < -font->charHeight )
|
|
return 0;
|
|
|
|
// check if printable
|
|
if( number <= 32 )
|
|
{
|
|
if( number == ' ' )
|
|
return font->charWidths[' '];
|
|
else if( number == '\t' )
|
|
return CL_CalcTabStop( font, x );
|
|
return 0;
|
|
}
|
|
|
|
if( FBitSet( flags, FONT_DRAW_UTF8 ))
|
|
number = Con_UtfProcessChar( number & 255 );
|
|
else number &= 255;
|
|
|
|
if( !number || !font->charWidths[number])
|
|
return 0;
|
|
|
|
R_GetTextureParms( &texw, &texh, font->hFontTexture );
|
|
if( !texw || !texh )
|
|
return font->charWidths[number];
|
|
|
|
rc = &font->fontRc[number];
|
|
if( font->scale <= 1.0f || REF_GET_PARM( PARM_TEX_FILTERING, font->hFontTexture ))
|
|
half = 0;
|
|
|
|
s1 = ((float)rc->left + half ) / texw;
|
|
t1 = ((float)rc->top + half ) / texh;
|
|
s2 = ((float)rc->right - half ) / texw;
|
|
t2 = ((float)rc->bottom - half ) / texh;
|
|
w = ( rc->right - rc->left ) * font->scale;
|
|
h = ( rc->bottom - rc->top ) * font->scale;
|
|
|
|
if( FBitSet( flags, FONT_DRAW_HUD ))
|
|
SPR_AdjustSize( &x, &y, &w, &h );
|
|
|
|
if( !FBitSet( flags, FONT_DRAW_NORENDERMODE ))
|
|
CL_SetFontRendermode( font );
|
|
|
|
// don't apply color to fixed fonts it's already colored
|
|
if( font->type != FONT_FIXED || REF_GET_PARM( PARM_TEX_GLFORMAT, font->hFontTexture ) == 0x8045 ) // GL_LUMINANCE8_ALPHA8
|
|
ref.dllFuncs.Color4ub( color[0], color[1], color[2], color[3] );
|
|
else ref.dllFuncs.Color4ub( 255, 255, 255, color[3] );
|
|
ref.dllFuncs.R_DrawStretchPic( x, y, w, h, s1, t1, s2, t2, font->hFontTexture );
|
|
|
|
return font->charWidths[number];
|
|
}
|
|
|
|
int CL_DrawString( float x, float y, const char *s, rgba_t color, cl_font_t *font, int flags )
|
|
{
|
|
rgba_t current_color;
|
|
int draw_len = 0;
|
|
|
|
if( !font || !font->valid )
|
|
return 0;
|
|
|
|
if( FBitSet( flags, FONT_DRAW_UTF8 ))
|
|
Con_UtfProcessChar( 0 ); // clear utf state
|
|
|
|
if( !FBitSet( flags, FONT_DRAW_NORENDERMODE ))
|
|
CL_SetFontRendermode( font );
|
|
|
|
Vector4Copy( color, current_color );
|
|
|
|
while( *s )
|
|
{
|
|
if( *s == '\n' )
|
|
{
|
|
s++;
|
|
|
|
if( !*s )
|
|
break;
|
|
|
|
// some client functions ignore newlines
|
|
if( !FBitSet( flags, FONT_DRAW_NOLF ))
|
|
{
|
|
draw_len = 0;
|
|
y += font->charHeight;
|
|
}
|
|
|
|
if( FBitSet( flags, FONT_DRAW_RESETCOLORONLF ))
|
|
Vector4Copy( color, current_color );
|
|
continue;
|
|
}
|
|
|
|
if( IsColorString( s ))
|
|
{
|
|
// don't copy alpha
|
|
if( !FBitSet( flags, FONT_DRAW_FORCECOL ))
|
|
VectorCopy( g_color_table[ColorIndex(*( s + 1 ))], current_color );
|
|
|
|
s += 2;
|
|
continue;
|
|
}
|
|
|
|
// skip setting rendermode, it was changed for this string already
|
|
draw_len += CL_DrawCharacter( x + draw_len, y, (byte)*s, current_color, font, flags | FONT_DRAW_NORENDERMODE );
|
|
|
|
s++;
|
|
}
|
|
|
|
return draw_len;
|
|
}
|
|
|
|
int CL_DrawStringf( cl_font_t *font, float x, float y, rgba_t color, int flags, const char *fmt, ... )
|
|
{
|
|
va_list va;
|
|
char buf[MAX_VA_STRING];
|
|
|
|
va_start( va, fmt );
|
|
Q_vsnprintf( buf, sizeof( buf ), fmt, va );
|
|
va_end( va );
|
|
|
|
return CL_DrawString( x, y, buf, color, font, flags );
|
|
}
|
|
|
|
void CL_DrawCharacterLen( cl_font_t *font, int number, int *width, int *height )
|
|
{
|
|
if( !font || !font->valid ) return;
|
|
if( width )
|
|
{
|
|
if( number == '\t' )
|
|
*width = CL_CalcTabStop( font, 0 ); // at least return max tabstop
|
|
else *width = font->charWidths[number & 255];
|
|
}
|
|
if( height ) *height = font->charHeight;
|
|
}
|
|
|
|
void CL_DrawStringLen( cl_font_t *font, const char *s, int *width, int *height, int flags )
|
|
{
|
|
int draw_len = 0;
|
|
|
|
if( !font || !font->valid )
|
|
return;
|
|
|
|
if( height )
|
|
*height = font->charHeight;
|
|
|
|
if( width )
|
|
*width = 0;
|
|
|
|
if( !COM_CheckString( s ))
|
|
return;
|
|
|
|
if( FBitSet( flags, FONT_DRAW_UTF8 ))
|
|
Con_UtfProcessChar( 0 ); // reset utf state
|
|
|
|
while( *s )
|
|
{
|
|
int number;
|
|
|
|
if( *s == '\n' )
|
|
{
|
|
// BUG: no check for end string here
|
|
// but high chances somebody's relying on this
|
|
s++;
|
|
draw_len = 0;
|
|
if( !FBitSet( flags, FONT_DRAW_NOLF ))
|
|
{
|
|
if( height )
|
|
*height += font->charHeight;
|
|
}
|
|
continue;
|
|
}
|
|
else if( *s == '\t' )
|
|
{
|
|
draw_len += CL_CalcTabStop( font, 0 ); // at least return max tabstop
|
|
s++;
|
|
continue;
|
|
}
|
|
|
|
if( IsColorString( s ))
|
|
{
|
|
s += 2;
|
|
continue;
|
|
}
|
|
|
|
if( FBitSet( flags, FONT_DRAW_UTF8 ))
|
|
number = Con_UtfProcessChar( (byte)*s );
|
|
else number = (byte)*s;
|
|
|
|
if( number )
|
|
{
|
|
draw_len += font->charWidths[number];
|
|
|
|
if( draw_len > *width )
|
|
*width = draw_len;
|
|
}
|
|
|
|
s++;
|
|
}
|
|
}
|