AllegroGL: allglint.h Source File

AllegroGL 0.4.4

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allglint.h
1 #ifndef gf_included_allglint_h
2 #define gf_included_allglint_h
3
4 #include "alleggl.h"
5
6
7 struct allegro_gl_info {
8 float version; /* OpenGL version */
9 int num_texture_units; /* Number of texture units */
10 int max_texture_size; /* Maximum texture size */
11 int is_voodoo3_and_under; /* Special cases for Voodoo 1-3 */
12 int is_voodoo; /* Special cases for Voodoo cards */
13 int is_matrox_g200; /* Special cases for Matrox G200 boards */
14 int is_ati_rage_pro; /* Special cases for ATI Rage Pro boards */
15 int is_ati_radeon_7000; /* Special cases for ATI Radeon 7000 */
16 int is_ati_r200_chip; /* Special cases for ATI card with chip R200 */
17 int is_mesa_driver; /* Special cases for MESA */
18 };
19
20
21
22 struct allegro_gl_driver {
23 void (*flip) (void);
24 void (*gl_on) (void);
25 void (*gl_off) (void);
26 void (*screen_masked_blit)(struct BITMAP *source, int source_x,
27 int source_y, int dest_x, int dest_y,
28 int width, int height, int flip_dir,
29 int blit_type);
30 };
31
32
33
34 struct allegro_gl_rgba_size {
35 int r, g, b, a;
36 };
37
38
39
40 struct allegro_gl_indexed_size {
41 int bpp;
42 };
43
44
45
46 union allegro_gl_pixel_size {
47 struct allegro_gl_rgba_size rgba;
48 struct allegro_gl_indexed_size indexed;
49 };
50
51
52
53 struct allegro_gl_display_info {
54 int allegro_format;
55 union allegro_gl_pixel_size pixel_size;
56 int colour_depth;
57 union allegro_gl_pixel_size accum_size;
58 int doublebuffered;
59 int stereo;
60 int aux_buffers;
61 int depth_size;
62 int stencil_size;
63 int w, h, x, y;
64 int r_shift, g_shift, b_shift, a_shift;
65 int packed_pixel_type, packed_pixel_format;
66 int rmethod; /* type of rendering, 0: software; 1: hardware, 2: unknown (X Win) */
67 int fullscreen;
68 int vidmem_policy;
69 int sample_buffers;
70 int samples;
71 int float_color;
72 int float_depth;
73 };
74
75 extern struct allegro_gl_display_info allegro_gl_display_info;
76 extern struct allegro_gl_driver *__allegro_gl_driver;
77 extern struct allegro_gl_info allegro_gl_info;
78 extern int __allegro_gl_required_settings, __allegro_gl_suggested_settings;
79 extern int __allegro_gl_valid_context;
80 extern int __allegro_gl_use_alpha;
81 extern GLint __allegro_gl_texture_read_format[5];
82 extern GLint __allegro_gl_texture_components[5];
83
84 #ifdef ALLEGRO_WINDOWS
85 extern HDC __allegro_gl_hdc;
86 #endif
87
88 int __allegro_gl_make_power_of_2(int x);
89
90 void __allegro_gl_reset_scorer (void);
91 int __allegro_gl_score_config (int refnum, struct allegro_gl_display_info *dinfo);
92 int __allegro_gl_best_config (void);
93
94 void __allegro_gl_set_allegro_image_format (int big_endian);
95
96 void __allegro_gl_fill_in_info(void);
97
98 void __allegro_gl_manage_extensions(void);
99 void __allegro_gl_unmanage_extensions(void);
100 void __allegro_gl_print_extensions(const char * extension);
101 int __allegro_gl_look_for_an_extension(AL_CONST char *name,
102 AL_CONST GLubyte * extensions);
103
104
105 extern _DRIVER_INFO *(*saved_gfx_drivers) (void);
106
107 typedef void (* BLIT_BETWEEN_FORMATS_FUNC) (struct BITMAP*, struct BITMAP*, int, int, int, int, int, int);
108 extern BLIT_BETWEEN_FORMATS_FUNC __blit_between_formats8;
109 extern BLIT_BETWEEN_FORMATS_FUNC __blit_between_formats15;
110 extern BLIT_BETWEEN_FORMATS_FUNC __blit_between_formats16;
111 extern BLIT_BETWEEN_FORMATS_FUNC __blit_between_formats24;
112 extern BLIT_BETWEEN_FORMATS_FUNC __blit_between_formats32;
113
114 void allegro_gl_memory_blit_between_formats(struct BITMAP *source, struct BITMAP *dest, int source_x, int source_y, int dest_x, int dest_y, int width, int height);
115
116 int allegro_gl_set_mouse_sprite(BITMAP *sprite, int xfocus, int yfocus);
117 int allegro_gl_show_mouse(BITMAP* bmp, int x, int y);
118 void allegro_gl_hide_mouse(void);
119 void allegro_gl_move_mouse(int x, int y);
120
121
122 extern char const *__allegro_gl_get_format_description(GLint format);
123 extern int __allegro_gl_get_num_channels(GLenum format);
124 extern GLenum __allegro_gl_get_bitmap_type(BITMAP *bmp, int flags);
125 extern GLenum __allegro_gl_get_bitmap_color_format(BITMAP *bmp, int flags);
126 extern GLint __allegro_gl_get_texture_format_ex(BITMAP *bmp, int flags);
127 extern BITMAP *__allegro_gl_munge_bitmap(int flags, BITMAP *bmp, int x, int y,
128 int w, int h, GLint *type, GLint *format);
129
130 extern int __allegro_gl_blit_operation;
131
132
136 typedef struct AGL_GLYPH {
137 int glyph_num;
138 int x, y, w, h;
139 int offset_x, offset_y, offset_w, offset_h;
140 } AGL_GLYPH;
141
142
143 /* <ofs_x>
144 +--------------------+
145 | |
146 | +-------+ |
147 | | glyph | |
148 | +-------+ |
149 | |
150 +--------------------+
151 < w ><ofs_w >
152 < polygon >
153 */
154
155
160 typedef struct FONT_AGL_DATA {
161 int type;
162 int start, end;
163 int is_free_chunk;
164
165 float scale;
166 GLint format;
167
168 void *data;
169 AGL_GLYPH *glyph_coords;
170 GLuint list_base;
171 GLuint texture;
172
173 struct FONT_AGL_DATA *next;
174
175 int has_alpha;
176 } FONT_AGL_DATA;
177
178 extern struct FONT_VTABLE *font_vtable_agl;
179
180
185 #define AGL_TEXTURE_FORCE_ALPHA_INTERNAL 0x80000000
186
190 #define AGL_TEXTURE_CHECK_VALID_INTERNAL 0x40000000
191
192
193 #define AGL_OP_LOGIC_OP 0x0
194 #define AGL_OP_BLEND 0x1
195
196 #define AGL_H_FLIP 1 /* Flag to request horizontal flipping */
197 #define AGL_V_FLIP 2 /* Flag to request vertical flipping */
198 #define AGL_REGULAR_BMP 1 /* Must be set for bitmaps that are not sprites.
199 Otherwise the clipping routine will not test
200 if source_x and source_y are legal values */
201 #define AGL_NO_ROTATION 2 /* If not set the clipping routine is skipped
202 This is needed for pivot_scaled_x() in order
203 not to clip rotated bitmaps (in such a case
204 OpenGL will take care of it) */
205
206
207 #define AGL_LOG(level,str)
208
209 #ifdef DEBUGMODE
210 #ifdef LOGLEVEL
211
212 void __allegro_gl_log (int level, const char *str);
213 #undef AGL_LOG
214 #define AGL_LOG(level,str) __allegro_gl_log (level, str)
215
216
217 #endif
218 #endif
219
220
221 #define GET_ALLEGRO_VERSION() MAKE_VER(ALLEGRO_VERSION, ALLEGRO_SUB_VERSION, \
222 ALLEGRO_WIP_VERSION)
223 #define MAKE_VER(a, b, c) (((a) << 16) | ((b) << 8) | (c))
224
225
226 #endif
227
alleggl.h
Main header file for AllegroGL.