RetroArch/menu/menu_animation.h
2015-08-21 04:03:59 +02:00

163 lines
3.8 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2014-2015 - Jean-André Santoni
* Copyright (C) 2011-2015 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _MENU_ANIMATION_H
#define _MENU_ANIMATION_H
#include <stdint.h>
#include <stdlib.h>
#include <boolean.h>
#include "../libretro.h"
#ifndef IDEAL_DT
#define IDEAL_DT (1.0 / 60.0 * 1000000.0)
#endif
#ifdef __cplusplus
extern "C" {
#endif
typedef float (*easingFunc)(float, float, float, float);
typedef void (*tween_cb) (void);
struct tween
{
bool alive;
float duration;
float running_since;
float initial_value;
float target_value;
float* subject;
int tag;
easingFunc easing;
tween_cb cb;
};
typedef struct menu_animation
{
struct tween *list;
size_t capacity;
size_t size;
size_t first_dead;
bool is_active;
/* Delta timing */
float delta_time;
retro_time_t cur_time;
retro_time_t old_time;
struct
{
bool is_updated;
} label;
} menu_animation_t;
enum menu_animation_easing_type
{
/* Linear */
EASING_LINEAR = 0,
/* Quad */
EASING_IN_QUAD,
EASING_OUT_QUAD,
EASING_IN_OUT_QUAD,
EASING_OUT_IN_QUAD,
/* Cubic */
EASING_IN_CUBIC,
EASING_OUT_CUBIC,
EASING_IN_OUT_CUBIC,
EASING_OUT_IN_CUBIC,
/* Quart */
EASING_IN_QUART,
EASING_OUT_QUART,
EASING_IN_OUT_QUART,
EASING_OUT_IN_QUART,
/* Quint */
EASING_IN_QUINT,
EASING_OUT_QUINT,
EASING_IN_OUT_QUINT,
EASING_OUT_IN_QUINT,
/* Sine */
EASING_IN_SINE,
EASING_OUT_SINE,
EASING_IN_OUT_SINE,
EASING_OUT_IN_SINE,
/* Expo */
EASING_IN_EXPO,
EASING_OUT_EXPO,
EASING_IN_OUT_EXPO,
EASING_OUT_IN_EXPO,
/* Circ */
EASING_IN_CIRC,
EASING_OUT_CIRC,
EASING_IN_OUT_CIRC,
EASING_OUT_IN_CIRC,
/* Bounce */
EASING_IN_BOUNCE,
EASING_OUT_BOUNCE,
EASING_IN_OUT_BOUNCE,
EASING_OUT_IN_BOUNCE
};
void menu_animation_free(
menu_animation_t *animation);
void menu_animation_kill_by_subject(
menu_animation_t *animation,
size_t count,
const void *subjects);
void menu_animation_kill_by_tag(menu_animation_t *anim, int tag);
/* Use -1 for untagged */
bool menu_animation_push(
menu_animation_t *animation,
float duration,
float target_value, float* subject,
enum menu_animation_easing_type easing_enum,
int tag, tween_cb cb);
bool menu_animation_update(
menu_animation_t *animation,
float dt);
/**
* menu_animation_ticker_str:
* @s : buffer to write new message line to.
* @len : length of buffer @input.
* @idx : Index. Will be used for ticker logic.
* @str : Input string.
* @selected : Is the item currently selected in the menu?
*
* Take the contents of @str and apply a ticker effect to it,
* and write the results in @s.
**/
void menu_animation_ticker_str(char *s, size_t len, uint64_t tick,
const char *str, bool selected);
void menu_animation_ticker_generic(uint64_t idx, int max_width,
int *offset, int *width);
menu_animation_t *menu_animation_get_ptr(void);
void menu_animation_update_time(void);
#ifdef __cplusplus
}
#endif
#endif