67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
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#ifndef SYS_H__
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#define SYS_H__
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#include "intern.h"
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#define INPUT_DIRECTION_LEFT (1 << 0)
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#define INPUT_DIRECTION_RIGHT (1 << 1)
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#define INPUT_DIRECTION_UP (1 << 2)
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#define INPUT_DIRECTION_DOWN (1 << 3)
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#define SYS_AUDIO_FREQ 22050
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struct input_t {
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uint8_t direction;
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bool quit;
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bool escape;
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bool space;
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};
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typedef void (*sys_audio_cb)(void *, uint8_t *data, int len);
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struct sys_rect_t {
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int x, y;
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int w, h;
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};
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enum sys_transition_e {
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TRANSITION_SQUARE,
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TRANSITION_CURTAIN
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};
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struct sys_t {
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struct input_t input;
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int (*init)();
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void (*fini)();
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void (*set_screen_size)(int w, int h, const char *caption, int scale, const char *filter, bool fullscreen);
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void (*set_screen_palette)(const uint8_t *colors, int);
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void (*set_palette_amiga)(const uint16_t *colors, int offset);
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void (*set_copper_bars)(const uint16_t *data);
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void (*fade_in_palette)();
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void (*fade_out_palette)();
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void (*update_screen)(const uint8_t *p, int present);
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void (*transition_screen)(enum sys_transition_e type, bool open);
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void (*process_events)();
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void (*sleep)(int duration);
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uint32_t (*get_timestamp)();
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void (*start_audio)(sys_audio_cb callback, void *param);
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void (*stop_audio)();
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void (*lock_audio)();
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void (*unlock_audio)();
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};
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extern struct sys_t g_sys;
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#define RENDER_SPR_GAME 0 /* player sprites */
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#define RENDER_SPR_LEVEL 1 /* level sprites */
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#define RENDER_SPR_FG 2 /* foreground tiles */
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extern void render_load_sprites(int spr_type, int count, const struct sys_rect_t *r, const uint8_t *data, int w, int h, int palette_offset);
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extern void render_unload_sprites(int spr_type);
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extern void render_add_sprite(int spr_type, int frame, int x, int y, int xflip);
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extern void render_clear_sprites();
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extern void render_set_sprites_clipping_rect(int x, int y, int w, int h);
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#endif /* SYS_H__ */
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