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Add some memory helper functions

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Maschell 2018-06-21 20:53:09 +02:00
parent ee13ddeee0
commit d9e5e61fe1
2 changed files with 137 additions and 0 deletions
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42
include/system/memory.h Normal file
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/****************************************************************************
* Copyright (C) 2015 Dimok
*
* This program 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 Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#ifndef __MEMORY_H_
#define __MEMORY_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <malloc.h>
void memoryInitialize(void);
void memoryRelease(void);
void * MEM2_alloc(uint32_t size, uint32_t align);
void MEM2_free(void *ptr);
void * MEM1_alloc(uint32_t size, uint32_t align);
void MEM1_free(void *ptr);
void * MEMBucket_alloc(uint32_t size, uint32_t align);
void MEMBucket_free(void *ptr);
#ifdef __cplusplus
}
#endif
#endif // __MEMORY_H_

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src/system/memory.c Normal file
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/****************************************************************************
* Copyright (C) 2015 Dimok
*
* This program 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 Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
****************************************************************************/
#include <malloc.h>
#include <string.h>
#include <coreinit/memexpheap.h>
#include <coreinit/memheap.h>
#include <coreinit/memfrmheap.h>
#include <system/memory.h>
#define MEMORY_ARENA_1 0
#define MEMORY_ARENA_2 1
#define MEMORY_ARENA_3 2
#define MEMORY_ARENA_4 3
#define MEMORY_ARENA_5 4
#define MEMORY_ARENA_6 5
#define MEMORY_ARENA_7 6
#define MEMORY_ARENA_8 7
#define MEMORY_ARENA_FG_BUCKET 8
//!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
//! Memory functions
//! This is the only place where those are needed so lets keep them more or less private
//!----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
static MEMHeapHandle mem1_heap = NULL;
static MEMHeapHandle bucket_heap = NULL;
void memoryInitialize(void) {
MEMHeapHandle mem1_heap_handle = MEMGetBaseHeapHandle(MEMORY_ARENA_1);
uint32_t mem1_allocatable_size = MEMGetAllocatableSizeForFrmHeapEx(mem1_heap_handle, 4);
void *mem1_memory = MEMAllocFromFrmHeapEx(mem1_heap_handle, mem1_allocatable_size, 4);
if(mem1_memory)
mem1_heap = MEMCreateExpHeapEx(mem1_memory, mem1_allocatable_size, 0);
MEMHeapHandle bucket_heap_handle = MEMGetBaseHeapHandle(MEMORY_ARENA_FG_BUCKET);
uint32_t bucket_allocatable_size = MEMGetAllocatableSizeForFrmHeapEx(bucket_heap_handle, 4);
void *bucket_memory = MEMAllocFromFrmHeapEx(bucket_heap_handle, bucket_allocatable_size, 4);
if(bucket_memory)
bucket_heap = MEMCreateExpHeapEx(bucket_memory, bucket_allocatable_size, 0);
}
void memoryRelease(void) {
MEMDestroyExpHeap(mem1_heap);
MEMFreeToFrmHeap(MEMGetBaseHeapHandle(MEMORY_ARENA_1), 3);
mem1_heap = NULL;
MEMDestroyExpHeap(bucket_heap);
MEMFreeToFrmHeap(MEMGetBaseHeapHandle(MEMORY_ARENA_FG_BUCKET), 3);
bucket_heap = NULL;
}
//!-------------------------------------------------------------------------------------------
//! some wrappers
//!-------------------------------------------------------------------------------------------
void * MEM2_alloc(uint32_t size, uint32_t align) {
return memalign(align, size);
}
void MEM2_free(void *ptr) {
free(ptr);
}
void * MEM1_alloc(uint32_t size, uint32_t align) {
if (align < 4)
align = 4;
return MEMAllocFromExpHeapEx(mem1_heap, size, align);
}
void MEM1_free(void *ptr) {
MEMFreeToExpHeap(mem1_heap, ptr);
}
void * MEMBucket_alloc(uint32_t size, uint32_t align) {
if (align < 4)
align = 4;
return MEMAllocFromExpHeapEx(bucket_heap, size, align);
}
void MEMBucket_free(void *ptr) {
MEMFreeToExpHeap(bucket_heap, ptr);
}