+++ /dev/null
-/* SFont: a simple font library that uses special images as fonts
- Copyright (C) 2003 Karl Bartel
-
- WWW: http://www.linux-games.com/sfont/
-
- 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 2 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.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- Karl Bartel
- Cecilienstr. 14
- 12307 Berlin
- GERMANY
- karlb@gmx.net
-*/
-#include <SDL.h>
-
-#include <assert.h>
-#include <stdlib.h>
-#include "SFont.h"
-
-static Uint32
-GetPixel(SDL_Surface *Surface, Sint32 X, Sint32 Y)
-{
- Uint8 *bits;
- Uint32 Bpp;
-
- assert(X>=0);
- assert(X<Surface->w);
-
- Bpp = Surface->format->BytesPerPixel;
- bits = ((Uint8 *)Surface->pixels)+Y*Surface->pitch+X*Bpp;
-
- // Get the pixel
- switch(Bpp) {
- case 1:
- return *((Uint8 *)Surface->pixels + Y * Surface->pitch + X);
- break;
- case 2:
- return *((Uint16 *)Surface->pixels + Y * Surface->pitch/2 + X);
- break;
- case 3: { // Format/endian independent
- Uint8 r, g, b;
- r = *((bits)+Surface->format->Rshift/8);
- g = *((bits)+Surface->format->Gshift/8);
- b = *((bits)+Surface->format->Bshift/8);
- return SDL_MapRGB(Surface->format, r, g, b);
- }
- break;
- case 4:
- return *((Uint32 *)Surface->pixels + Y * Surface->pitch/4 + X);
- break;
- }
-
- return -1;
-}
-
-SFont_Font *
-SFont_InitFont(SDL_Surface* Surface)
-{
- int x = 0, i = 0;
- Uint32 pixel;
- SFont_Font* Font;
- Uint32 pink;
-
- if (Surface == NULL)
- return NULL;
-
- Font = (SFont_Font *) malloc(sizeof(SFont_Font));
- Font->Surface = Surface;
-
- if(SDL_MUSTLOCK(Surface)) { SDL_LockSurface(Surface); }
-
- pink = SDL_MapRGB(Surface->format, 255, 0, 255);
- while (x < Surface->w) {
- if (GetPixel(Surface, x, 0) == pink) {
- Font->CharPos[i++]=x;
- while((x < Surface->w) && (GetPixel(Surface, x, 0)== pink))
- x++;
- Font->CharPos[i++]=x;
- }
- x++;
- }
- Font->MaxPos = x-1;
-
- pixel = GetPixel(Surface, 0, Surface->h-1);
- if(SDL_MUSTLOCK(Surface)) { SDL_UnlockSurface(Surface); }
- SDL_SetColorKey(Surface, SDL_SRCCOLORKEY, pixel);
-
- return Font;
-}
-
-void
-SFont_FreeFont(SFont_Font* FontInfo)
-{
- SDL_FreeSurface(FontInfo->Surface);
- free(FontInfo);
-}
-
-void
-SFont_Write(SDL_Surface *Surface, const SFont_Font *Font,
- int x, int y, const char *text)
-{
- const char* c;
- int charoffset;
- SDL_Rect srcrect, dstrect;
-
- if(text == NULL)
- return;
-
- // these values won't change in the loop
- srcrect.y = 1;
- dstrect.y = y;
- srcrect.h = dstrect.h = Font->Surface->h - 1;
-
- for(c = text; *c != '\0' && x <= Surface->w ; c++) {
- charoffset = ((int) (*c - 33)) * 2 + 1;
- // skip spaces and nonprintable characters
- if (*c == ' ' || charoffset < 0 || charoffset > Font->MaxPos) {
- x += Font->CharPos[2]-Font->CharPos[1];
- continue;
- }
-
- srcrect.w = dstrect.w =
- (Font->CharPos[charoffset+2] + Font->CharPos[charoffset+1])/2 -
- (Font->CharPos[charoffset] + Font->CharPos[charoffset-1])/2;
- srcrect.x = (Font->CharPos[charoffset]+Font->CharPos[charoffset-1])/2;
- dstrect.x = x - (float)(Font->CharPos[charoffset]
- - Font->CharPos[charoffset-1])/2;
-
- SDL_BlitSurface(Font->Surface, &srcrect, Surface, &dstrect);
-
- x += Font->CharPos[charoffset+1] - Font->CharPos[charoffset];
- }
-}
-
-int
-SFont_TextWidth(const SFont_Font *Font, const char *text)
-{
- const char* c;
- int charoffset=0;
- int width = 0;
-
- if(text == NULL)
- return 0;
-
- for(c = text; *c != '\0'; c++) {
- charoffset = ((int) *c - 33) * 2 + 1;
- // skip spaces and nonprintable characters
- if (*c == ' ' || charoffset < 0 || charoffset > Font->MaxPos) {
- width += Font->CharPos[2]-Font->CharPos[1];
- continue;
- }
-
- width += Font->CharPos[charoffset+1] - Font->CharPos[charoffset];
- }
-
- return width;
-}
-
-int
-SFont_TextHeight(const SFont_Font* Font)
-{
- return Font->Surface->h - 1;
-}
-
-void
-SFont_WriteCenter(SDL_Surface *Surface, const SFont_Font *Font,
- int y, const char *text)
-{
- SFont_Write(Surface, Font, Surface->w/2 - SFont_TextWidth(Font, text)/2,
- y, text);
-}
+++ /dev/null
-/* SFont: a simple font-library that uses special bitmaps as fonts
- Copyright (C) 2003 Karl Bartel
-
- WWW: http://www.linux-games.com/sfont/
-
- 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 2 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.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- Karl Bartel
- Cecilienstr. 14
- 12307 Berlin
- GERMANY
- karlb@gmx.net
-*/
-
-/************************************************************************
-* SFONT - SDL Font Library by Karl Bartel <karlb@gmx.net> *
-* *
-* All functions are explained below. For further information, take a *
-* look at the example files, the links at the SFont web site, or *
-* contact me, if you problem isn' addressed anywhere. *
-* *
-************************************************************************/
-#ifndef SFONT_H
-#define SFONT_H
-
-#include <SDL.h>
-
-// Delcare one variable of this type for each font you are using.
-// To load the fonts, load the font image into YourFont->Surface
-// and call SFont_InitFont(YourFont);
-typedef struct {
- SDL_Surface *Surface;
- int CharPos[512];
- int MaxPos;
-} SFont_Font;
-
-// Initializes the font
-// Font: this contains the suface with the font.
-// The Surface must be loaded before calling this function
-SFont_Font* SFont_InitFont (SDL_Surface *Font);
-
-// Frees the font
-// Font: The font to free
-// The font must be loaded before using this function.
-void SFont_FreeFont(SFont_Font* Font);
-
-// Blits a string to a surface
-// Destination: the suface you want to blit to
-// text: a string containing the text you want to blit.
-void SFont_Write(SDL_Surface *Surface, const SFont_Font *Font, int x, int y,
- const char *text);
-
-// Returns the width of "text" in pixels
-int SFont_TextWidth(const SFont_Font* Font, const char *text);
-// Returns the height of "text" in pixels (which is always equal to Font->Surface->h)
-int SFont_TextHeight(const SFont_Font* Font);
-
-// Blits a string to Surface with centered x position
-void SFont_WriteCenter(SDL_Surface *Surface, const SFont_Font* Font, int y,
- const char *text);
-
-#endif /* SFONT_H */
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