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#ifndef _TIL_H
#define _TIL_H
#include "til_fb.h"
#include "til_setup.h"
/* til_fragmenter produces fragments from an input fragment, num being the desired fragment for the current call.
* return value of 1 means a fragment has been produced, 0 means num is beyond the end of fragments. */
typedef int (*til_fragmenter_t)(void *context, const til_fb_fragment_t *fragment, unsigned number, til_fb_fragment_t *res_fragment);
typedef struct til_settings_t settings;
typedef struct til_setting_desc_t til_setting_desc_t;
typedef struct til_knob_t til_knob_t;
#define TIL_MODULE_OVERLAYABLE 1u
typedef struct til_module_t {
void * (*create_context)(unsigned ticks, unsigned n_cpus, til_setup_t *setup);
void (*destroy_context)(void *context);
void (*prepare_frame)(void *context, unsigned ticks, unsigned n_cpus, til_fb_fragment_t *fragment, til_fragmenter_t *res_fragmenter);
void (*render_fragment)(void *context, unsigned ticks, unsigned cpu, til_fb_fragment_t *fragment);
void (*finish_frame)(void *context, unsigned ticks, til_fb_fragment_t *fragment);
int (*setup)(const til_settings_t *settings, til_setting_t **res_setting, const til_setting_desc_t **res_desc, til_setup_t **res_setup);
size_t (*knobs)(void *context, til_knob_t **res_knobs);
char *name;
char *description;
char *author;
unsigned flags;
} til_module_t;
int til_init(void);
void til_quiesce(void);
void til_shutdown(void);
const til_module_t * til_lookup_module(const char *name);
void til_get_modules(const til_module_t ***res_modules, size_t *res_n_modules);
void til_module_render(const til_module_t *module, void *context, unsigned ticks, til_fb_fragment_t *fragment);
int til_module_create_context(const til_module_t *module, unsigned ticks, til_setup_t *setup, void **res_context);
void * til_module_destroy_context(const til_module_t *module, void *context);
int til_module_setup(til_settings_t *settings, til_setting_t **res_setting, const til_setting_desc_t **res_desc, til_setup_t **res_setup);
int til_module_randomize_setup(const til_module_t *module, til_setup_t **res_setup, char **res_arg);
#endif
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