bit engine
canoi.dev.br
1#ifndef _BIT_ENGINE_
2#define _BIT_ENGINE_
3
4#include <stdio.h>
5#include <stdlib.h>
6#include <string.h>
7
8#define BITE_VERSION "0.1.0"
9#define BITE_API extern
10
11typedef unsigned char be_u8;
12typedef unsigned short be_u16;
13typedef unsigned int be_u32;
14typedef unsigned long int be_u64;
15
16typedef struct {float x, y, w, h; } be_Rect;
17
18typedef struct be_Context be_Context;
19
20typedef struct be_Window be_Window;
21typedef struct be_Event be_Event;
22
23typedef struct be_Texture be_Texture;
24typedef struct be_Framebuffer be_Framebuffer;
25typedef struct be_Shader be_Shader;
26typedef struct be_Font be_Font;
27
28typedef void(*be_EventCallback)(be_Context*, be_Event*);
29
30#define BITE_TRUE 1
31#define BITE_FALSE 0
32
33#define BITE_OK 0
34#define BITE_ERROR -1
35
36#define BITE_RESULT int
37#define BITE_BOOL be_u8
38
39enum {
40 BITE_NONE = 0,
41 BITE_QUIT,
42
43 BITE_KEY_PRESSED,
44 BITE_KEY_RELEASED,
45
46 BITE_WINDOW_RESIZE,
47 BITE_WINDOW_MOVE,
48 BITE_WINDOW_MINIMIZE,
49 BITE_WINDOW_MAXIMIZE,
50 BITE_WINDOW_RESTORE,
51 BITE_WINDOW_CLOSE,
52
53 BITE_EVENTS
54};
55
56enum {
57 BITEK_NONE = 0,
58
59 BITEK_BACKSPACE,
60 BITEK_TAB,
61 BITEK_RETURN,
62 BITEK_LALT,
63 BITEK_RALT,
64 BITEK_LSHIFT,
65 BITEK_RSHIFT,
66 BITEK_LCONTROL,
67 BITEK_RCONTROL,
68
69 BITEK_ESCAPE,
70
71 BITEK_SPACE,
72
73 BITEK_PAGEUP,
74 BITEK_PAGEDOWN,
75
76 BITEK_LEFT,
77 BITEK_UP,
78 BITEK_RIGHT,
79 BITEK_DOWN,
80
81 BITEK_END,
82 BITEK_HOME,
83 BITEK_INSERT,
84 BITEK_DELETE,
85
86 BITEK_0,
87 BITEK_1,
88 BITEK_2,
89 BITEK_3,
90 BITEK_4,
91 BITEK_5,
92 BITEK_6,
93 BITEK_7,
94 BITEK_8,
95 BITEK_9,
96
97 BITEK_A,
98 BITEK_B,
99 BITEK_C,
100 BITEK_D,
101 BITEK_E,
102 BITEK_F,
103 BITEK_G,
104 BITEK_H,
105 BITEK_I,
106 BITEK_J,
107 BITEK_K,
108 BITEK_L,
109 BITEK_M,
110 BITEK_N,
111 BITEK_O,
112 BITEK_P,
113 BITEK_Q,
114 BITEK_R,
115 BITEK_S,
116 BITEK_T,
117 BITEK_U,
118 BITEK_V,
119 BITEK_W,
120 BITEK_X,
121 BITEK_Y,
122 BITEK_Z,
123
124 BITEK_LSUPER,
125 BITEK_RSUPER,
126 BITEK_APPS,
127
128 BITEK_NUMPAD0,
129 BITEK_NUMPAD1,
130 BITEK_NUMPAD2,
131 BITEK_NUMPAD3,
132 BITEK_NUMPAD4,
133 BITEK_NUMPAD5,
134 BITEK_NUMPAD6,
135 BITEK_NUMPAD7,
136 BITEK_NUMPAD8,
137 BITEK_NUMPAD9,
138 BITEK_MULTIPLY,
139 BITEK_PLUS,
140 BITEK_MINUS,
141
142 BITEK_LESS,
143 BITEK_EQUAL,
144 BITEK_GREATER,
145
146 BITEK_F1,
147 BITEK_F2,
148 BITEK_F3,
149 BITEK_F4,
150 BITEK_F5,
151 BITEK_F6,
152 BITEK_F7,
153 BITEK_F8,
154 BITEK_F9,
155 BITEK_F10,
156 BITEK_F11,
157 BITEK_F12,
158
159};
160
161enum {
162 BITE_POINTS = 0,
163 BITE_LINES,
164 BITE_TRIANGLES
165};
166
167struct be_Event {
168 int type;
169 union {
170 struct {
171 be_Window* handle;
172 const char title[128];
173 int x, y;
174 void* data0;
175 void* data1;
176 } window;
177 struct {
178 int keycode;
179 } key;
180 };
181};
182
183typedef struct {
184 struct {
185 char title[128];
186 int width, height;
187 int flags;
188 } window;
189} be_Config;
190
191#if defined(__cplusplus)
192extern "C" {
193#endif
194
195BITE_API void bite_simple_triangle(be_Context* ctx);
196
197/*********************
198 * Core
199 *********************/
200BITE_API be_Config bite_init_config(const char* title, int w, int h);
201
202BITE_API be_Context* bite_create(const be_Config* conf);
203BITE_API void bite_destroy(be_Context* ctx);
204
205BITE_API void bite_register_callback(be_Context* ctx, int type, be_EventCallback callback);
206
207BITE_API int bite_should_close(be_Context* ctx);
208BITE_API void bite_set_should_close(be_Context* ctx, int should_close);
209
210BITE_API void bite_poll_events(be_Context* ctx);
211
212BITE_API void bite_swap(be_Context* ctx);
213
214/*********************
215 * Window
216 *********************/
217BITE_API void bite_set_window_width(be_Context* ctx, int width);
218BITE_API void bite_set_window_height(be_Context* ctx, int height);
219BITE_API void bite_set_window_size(be_Context* ctx, int width, int height);
220
221BITE_API int bite_get_window_width(be_Context* ctx);
222BITE_API int bite_get_window_height(be_Context* ctx);
223BITE_API void bite_get_window_size(int* w, int* h);
224
225BITE_API void bite_get_mouse_pos(int* x, int* y);
226
227/*********************
228 * Render
229 *********************/
230
231BITE_API be_Shader* bite_create_shader(const char* vert, const char* src);
232BITE_API void bite_destroy_shader(be_Shader* shader);
233
234BITE_API be_Texture* bite_create_texture(int w, int h, int format, void* data);
235BITE_API void bite_destroy_texture(be_Texture* texture);
236
237BITE_API be_Framebuffer* bite_create_framebuffer(void);
238BITE_API void bite_destroy_framebuffer(be_Framebuffer* fbo);
239BITE_API BITE_RESULT bite_framebuffer_attach_texture(be_Framebuffer* fbo, be_Texture* texture);
240
241BITE_API void bite_render_clear_color(float r, float g, float b, float a);
242BITE_API void bite_render_clear(void);
243
244BITE_API void bite_bind_framebuffer(be_Framebuffer* fbo);
245BITE_API void bite_bind_texture(be_Texture* tex);
246BITE_API void bite_use_shader(be_Shader* shader);
247
248BITE_API void bite_render_point(float x, float y);
249BITE_API void bite_render_line(float x0, float y0, float x1, float y1);
250BITE_API void bite_render_rect(be_Rect* rect);
251BITE_API void bite_render_rectangle(float x, float y, float w, float h);
252BITE_API void bite_render_circle(float x, float y, float radius);
253BITE_API void bite_render_triangle(float x0, float y0, float x1, float y1, float x2, float y2);
254
255BITE_API void bite_render_texture(be_Texture* tex, be_Rect* src, be_Rect* dest);
256
257/*********************
258 * Timer
259 *********************/
260BITE_API void bite_sleep(be_u64 ms);
261BITE_API be_u64 bite_tick(void);
262
263BITE_API void bite_timer_sleep(be_u64 ms);
264BITE_API be_u64 bite_timer_tick(void);
265
266#if defined(__cplusplus)
267}
268#endif
269
270#endif /* _BIT_ENGINE_ */