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annotate src/dmtext.h @ 2385:5ffc48a0bebe

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Conditionally define DM_ATTR_PRINTF_FMT(xstart, xend) instead of using __attribute__ ((__format__ (__printf__, (xstart), (xend)))) directly. Wrap it in an #ifdef check for __MINGW64__ as there are some annoying issues on that side, which we just suppress now.
author Matti Hamalainen <ccr@tnsp.org>
date Thu, 09 Jan 2020 18:51:22 +0200
parents 43e39d9ec42f
children 92b93a12c014
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * DMLib
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3 * -- Bitmap font support
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4 * Programmed and designed by Matti 'ccr' Hamalainen
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5 * (C) Copyright 2012 Tecnic Software productions (TNSP)
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6 */
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7 #ifndef DMFONT_H
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8 #define DMFONT_H
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9
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10 #include "dmlib.h"
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11 #include "dmres.h"
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12
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13 #ifdef DM_GFX_TTF_TEXT
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14 #include <SDL_ttf.h>
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15 #endif
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16
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17 #ifdef __cplusplus
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18 extern "C" {
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19 #endif
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20
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21 /* Bitmapped fonts and text
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22 */
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23 #ifdef DM_GFX_BM_TEXT
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25 // DMFONT format constants
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26 #define DMFONT_MAGIC "DMFONT"
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27 #define DMFONT_VERSION 0x0200
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29 #define DMFONT_MIN_WIDTH 3
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30 #define DMFONT_MIN_HEIGHT 3
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31 #define DMFONT_MAX_WIDTH 128
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32 #define DMFONT_MAX_HEIGHT 128
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33 #define DMFONT_MAX_GLYPHS 1024
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34 #define DMFONT_NPALETTE 256
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35
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36 // Legacy TSFONT loading support
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37 #define TSFONT_MAGIC "TSFONT"
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38 #define TSFONT_VERSION 0x0205
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41 typedef struct
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42 {
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43 int width, height, // Dimensions of this glyph
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44 index; // Index to surface, value of "maxglyph" means unused
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45 } DMBitmapGlyph;
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46
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47
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48 typedef struct
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49 {
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50 int width, height; // Dimensions
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51 int nglyphs, // How many glyphs worth of data is allocated for the surface
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52 maxglyph; // Number of character indices, e.g. typically 256
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53 size_t gsize; // Size of one glyph in bytes, e.g. glyphs->pitch * font->height
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54
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55 DMBitmapGlyph *glyphMap;
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56 SDL_Surface *glyphs; // Surface containing glyphs
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57 } DMBitmapFont;
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59
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60 DMBitmapFont *dmNewBitmapFont(const int nglyphs, const int maxglyph, const int width, const int height, const int bpp);
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61 int dmFreeBitmapFont(DMBitmapFont *font);
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62 int dmLoadBitmapFont(DMResource *res, DMBitmapFont **pfont);
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63 int dmSetBitmapFontPalette(DMBitmapFont *font, const SDL_Color *pal, const int start, const int size);
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66 void dmDrawBMTextConst(SDL_Surface *screen, const DMBitmapFont *font,
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67 const BOOL condensed, const int mode, int xc, int yc, const char *str);
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68 void dmDrawBMTextVA(SDL_Surface *screen, const DMBitmapFont *font,
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69 const BOOL condensed, const int mode, const int xc, const int yc, const char *fmt, va_list ap);
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70 void dmDrawBMText(SDL_Surface *screen, const DMBitmapFont *font,
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71 const BOOL condensed, const int mode, const int xc, const int yc, const char *fmt, ...)
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72 DM_ATTR_PRINTF_FMT(7, 8);
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74
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75 static inline void dmInitializeGetBMGlyphSurface(SDL_Surface *surf, DMBitmapFont *font)
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76 {
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77 memcpy(surf, font->glyphs, sizeof(SDL_Surface));
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78 }
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79
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80 static inline void dmGetBMGlyph(SDL_Surface *surf, DMBitmapFont *font, int ch)
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81 {
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82 DMBitmapGlyph *glyph;
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83 if (ch < 0 || ch >= font->nglyphs || ch == '\n' || ch == '\r')
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84 ch = 32;
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85
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86 memcpy(surf, font->glyphs, sizeof(SDL_Surface));
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87
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88 glyph = &font->glyphMap[ch];
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89 surf->w = glyph->width;
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90 surf->h = glyph->height;
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91 surf->pixels = font->glyphs->pixels + font->gsize * glyph->index;
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92 }
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93 #endif
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96 /* TTF text drawing
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97 */
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98 #ifdef DM_GFX_TTF_TEXT
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99 void dmDrawTTFTextConst(SDL_Surface *screen, TTF_Font *font, SDL_Color col, const int xc, const int yc, const char *fmt);
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100 void dmDrawTTFTextVA(SDL_Surface *screen, TTF_Font *font, SDL_Color col, const int xc, const int yc, const char *fmt, va_list ap);
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101 void dmDrawTTFText(SDL_Surface *screen, TTF_Font *font, SDL_Color col, const int xc, const int yc, const char *fmt, ...);
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102 #endif
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105 #ifdef __cplusplus
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106 }
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107 #endif
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108
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109 #endif // DMFONT_H