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#ifndef RVL_SDK_MEM_EXP_HEAP_H
#define RVL_SDK_MEM_EXP_HEAP_H
#include "common.h"
#ifdef __cplusplus
extern "C" {
#endif
#define MEM_EXP_HEAP_MIN_SIZE (sizeof(MEMiHeapHead) + sizeof(MEMiExpHeapHead) + sizeof(MEMiExpHeapMBlock) + 4)
// Forward declarations
typedef struct MEMiHeapHead;
typedef enum {
MEM_EXP_HEAP_ALLOC_FAST, //!< When allocating memory blocks, take the first
//!< usable found block rather than trying to
//!< find a more optimal block
} MEMiExpHeapAllocMode;
typedef struct MEMiExpHeapMBlock {
u16 state; // at 0x0
union {
u16 settings;
struct {
u16 allocDir : 1;
u16 align : 7;
u16 group : 8;
};
}; // at 0x2
u32 size; // at 0x4
struct MEMiExpHeapMBlock *prev; // at 0x8
struct MEMiExpHeapMBlock *next; // at 0xC
} MEMiExpHeapMBlock;
typedef struct MEMiExpHeapMBlockList {
MEMiExpHeapMBlock *head; // at 0x0
MEMiExpHeapMBlock *tail; // at 0x4
} MEMiExpHeapMBlockList;
// Placed in heap after base heap head
typedef struct MEMiExpHeapHead {
MEMiExpHeapMBlockList freeMBlocks; // at 0x0
MEMiExpHeapMBlockList usedMBlocks; // at 0x8
u16 group; // at 0x10
union {
u16 SHORT_0x12;
struct {
u16 SHORT_0x12_0_15 : 15;
u16 allocMode : 1;
};
}; // at 0x12
} MEMiExpHeapHead;
struct MEMiHeapHead *MEMCreateExpHeapEx(void *start, u32 size, u16 opt);
struct MEMiHeapHead *MEMDestroyExpHeap(struct MEMiHeapHead *heap);
void *MEMAllocFromExpHeapEx(struct MEMiHeapHead *heap, u32 size, s32 align);
u32 MEMResizeForMBlockExpHeap(struct MEMiHeapHead *heap, void *memBlock, u32 size);
void MEMFreeToExpHeap(struct MEMiHeapHead *heap, void *memBlock);
u32 MEMGetAllocatableSizeForExpHeap(struct MEMiHeapHead *heap);
u32 MEMGetTotalFreeSizeForExpHeap(struct MEMiHeapHead *heap);
u32 MEMGetAllocatableSizeForExpHeapEx(struct MEMiHeapHead *heap, s32 align);
void MEMSetGroupIdForExpHeap(struct MEMiHeapHead *mHeapHandle, u16 groupId);
u32 MEMAdjustExpHeap(struct MEMiHeapHead *heap);
u32 MEMGetSizeForMBlockExpHeap(const void *block);
void MEMSetAllocModeForExpHeap(struct MEMiHeapHead *heap, u16 allocMode);
static inline struct MEMiHeapHead *MEMCreateExpHeap(void *start, u32 size) {
return MEMCreateExpHeapEx(start, size, 0);
}
static inline void *MEMAllocFromExpHeap(struct MEMiHeapHead *heap, u32 size) {
return MEMAllocFromExpHeapEx(heap, size, 4);
}
// This doesn't appear to be inline in SS yet
/*
static inline u32 MEMGetAllocatableSizeForExpHeap(struct MEMiHeapHead *heap) {
return MEMGetAllocatableSizeForExpHeapEx(heap, 4);
}*/
#ifdef __cplusplus
}
#endif
#endif
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