SGDK/vram_8h_source.html

#ifndef _VRAM_H_

#define _VRAM_H_


typedef struct

{

    u16 startIndex;

    u16 endIndex;

    u16 *free;

    u16 *vram;

} VRAMRegion;


void VRAM_createRegion(VRAMRegion *region, u16 startIndex, u16 size);

void VRAM_releaseRegion(VRAMRegion *region);

void VRAM_clearRegion(VRAMRegion *region);


u16 VRAM_getFree(VRAMRegion *region);

u16 VRAM_getAllocated(VRAMRegion *region);

u16 VRAM_getLargestFreeBlock(VRAMRegion *region);


s16 VRAM_alloc(VRAMRegion *region, u16 size);

void VRAM_free(VRAMRegion *region, u16 index);


#endif // _VRAM_H_

VRAMRegion
VRAM region structure.
Definition vram.h:164

s16
short s16
Definition types.h:84

u16
unsigned short u16
Definition types.h:100

VRAM_clearRegion
void VRAM_clearRegion(VRAMRegion *region)
Release all allocations from specified VRAM region.
Definition vram.c:41

VRAM_createRegion
void VRAM_createRegion(VRAMRegion *region, u16 startIndex, u16 size)
Initialize a new VRAM region structure.
Definition vram.c:23

VRAM_getFree
u16 VRAM_getFree(VRAMRegion *region)
Return the number of free tile remaining in the specified VRAM region.
Definition vram.c:54

VRAM_getLargestFreeBlock
u16 VRAM_getLargestFreeBlock(VRAMRegion *region)
Return the largest free block size (in tile) in the specified VRAM region.
Definition vram.c:79

VRAM_free
void VRAM_free(VRAMRegion *region, u16 index)
Release the previously allocated VRAM block at specified index in the given VRAM region.
Definition vram.c:203

VRAM_alloc
s16 VRAM_alloc(VRAMRegion *region, u16 size)
Try to allocate the specified number of tile in the given VRAM region and return its index.
Definition vram.c:135

VRAM_releaseRegion
void VRAM_releaseRegion(VRAMRegion *region)
Release the VRAM region structure.
Definition vram.c:34

VRAM_getAllocated
u16 VRAM_getAllocated(VRAMRegion *region)
Return the number of allocated tile in the specified VRAM region.
Definition vram.c:106