mirror of
https://github.com/libretro/RetroArch
synced 2025-03-06 13:13:57 +00:00
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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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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#include "rewind.h"
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#include "rewind-alcaro.h"
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#include <stdlib.h>
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#include <string.h>
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struct state_manager {
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struct rewindstack * core;
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unsigned int state_size;
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};
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state_manager_t *state_manager_new(size_t state_size, size_t buffer_size, void *init_buffer)
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{
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state_manager_t *state = (state_manager_t*)calloc(1, sizeof(*state));
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if (!state)
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return NULL;
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state->state_size=state_size;
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state->core=rewindstack_create(state_size, buffer_size);
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if (!state->core)
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{
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free(state);
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return NULL;
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}
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void* first_state=state->core->push_begin(state->core);
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memcpy(first_state, init_buffer, state_size);
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state->core->push_end(state->core);
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}
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void state_manager_free(state_manager_t *state)
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{
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state->core->free(state->core);
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free(state);
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}
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bool state_manager_pop(state_manager_t *state, void **data)
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{
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*data=(void*)state->core->pull(state->core);
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return (*data);
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}
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bool state_manager_push(state_manager_t *state, const void *data)
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{
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void* next_state=state->core->push_begin(state->core);
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memcpy(next_state, data, state->state_size);
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state->core->push_end(state->core);
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return true;
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}
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