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c00b6e0750
`menu_animation_update` enumerates `menu_animation.list` to process each `tween`. It was observed that some tweens execute a callback that pushes more animations via `menu_animation_push`. During the push, if the tween `list` does not have enough space, a `realloc` occurs, potentially invalidating the existing list. The remaining pointer access in menu_animation_update is therefore invalid. Best case is the memory is unused and thus does not affect the program. Worst case is memory corruption.
161 lines
3.7 KiB
C
161 lines
3.7 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2014-2017 - Jean-André Santoni
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* Copyright (C) 2011-2017 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _MENU_ANIMATION_H
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#define _MENU_ANIMATION_H
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#include <stdint.h>
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#include <stdlib.h>
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#include <boolean.h>
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#include <retro_common_api.h>
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RETRO_BEGIN_DECLS
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typedef float (*easing_cb) (float, float, float, float);
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typedef void (*tween_cb) (void*);
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enum menu_animation_ctl_state
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{
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MENU_ANIMATION_CTL_NONE = 0,
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MENU_ANIMATION_CTL_DEINIT,
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MENU_ANIMATION_CTL_CLEAR_ACTIVE,
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MENU_ANIMATION_CTL_SET_ACTIVE
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};
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enum menu_animation_easing_type
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{
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/* Linear */
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EASING_LINEAR = 0,
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/* Quad */
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EASING_IN_QUAD,
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EASING_OUT_QUAD,
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EASING_IN_OUT_QUAD,
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EASING_OUT_IN_QUAD,
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/* Cubic */
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EASING_IN_CUBIC,
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EASING_OUT_CUBIC,
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EASING_IN_OUT_CUBIC,
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EASING_OUT_IN_CUBIC,
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/* Quart */
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EASING_IN_QUART,
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EASING_OUT_QUART,
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EASING_IN_OUT_QUART,
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EASING_OUT_IN_QUART,
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/* Quint */
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EASING_IN_QUINT,
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EASING_OUT_QUINT,
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EASING_IN_OUT_QUINT,
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EASING_OUT_IN_QUINT,
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/* Sine */
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EASING_IN_SINE,
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EASING_OUT_SINE,
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EASING_IN_OUT_SINE,
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EASING_OUT_IN_SINE,
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/* Expo */
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EASING_IN_EXPO,
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EASING_OUT_EXPO,
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EASING_IN_OUT_EXPO,
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EASING_OUT_IN_EXPO,
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/* Circ */
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EASING_IN_CIRC,
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EASING_OUT_CIRC,
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EASING_IN_OUT_CIRC,
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EASING_OUT_IN_CIRC,
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/* Bounce */
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EASING_IN_BOUNCE,
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EASING_OUT_BOUNCE,
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EASING_IN_OUT_BOUNCE,
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EASING_OUT_IN_BOUNCE,
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EASING_LAST
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};
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typedef struct menu_animation_ctx_delta
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{
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float current;
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float ideal;
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} menu_animation_ctx_delta_t;
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typedef uintptr_t menu_animation_ctx_tag;
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typedef struct menu_animation_ctx_subject
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{
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size_t count;
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const void *data;
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} menu_animation_ctx_subject_t;
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typedef struct menu_animation_ctx_entry
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{
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enum menu_animation_easing_type easing_enum;
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uintptr_t tag;
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float duration;
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float target_value;
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float *subject;
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tween_cb cb;
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void *userdata;
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} menu_animation_ctx_entry_t;
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typedef struct menu_animation_ctx_ticker
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{
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bool selected;
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size_t len;
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uint64_t idx;
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char *s;
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const char *str;
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} menu_animation_ctx_ticker_t;
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typedef float menu_timer_t;
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typedef struct menu_timer_ctx_entry
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{
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float duration;
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tween_cb cb;
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void *userdata;
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} menu_timer_ctx_entry_t;
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void menu_timer_start(menu_timer_t *timer, menu_timer_ctx_entry_t *timer_entry);
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void menu_timer_kill(menu_timer_t *timer);
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void menu_animation_init(void);
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void menu_animation_free(void);
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bool menu_animation_update(float delta_time);
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bool menu_animation_get_ideal_delta_time(menu_animation_ctx_delta_t *delta);
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bool menu_animation_ticker(const menu_animation_ctx_ticker_t *ticker);
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void menu_animation_update_time(bool timedate_enable);
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bool menu_animation_is_active(void);
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bool menu_animation_kill_by_tag(menu_animation_ctx_tag *tag);
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void menu_animation_kill_by_subject(menu_animation_ctx_subject_t *subject);
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bool menu_animation_push(menu_animation_ctx_entry_t *entry);
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float menu_animation_get_delta_time(void);
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bool menu_animation_ctl(enum menu_animation_ctl_state state, void *data);
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RETRO_END_DECLS
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#endif
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