mirror of https://github.com/pret/pokeemerald.git
49 lines
1.8 KiB
C
49 lines
1.8 KiB
C
#ifndef GUARD_SCANLINE_EFFECT_H
|
|
#define GUARD_SCANLINE_EFFECT_H
|
|
|
|
// DMA control value to transfer a single 16-bit value at HBlank
|
|
#define SCANLINE_EFFECT_DMACNT_16BIT (((DMA_ENABLE | DMA_START_HBLANK | DMA_REPEAT | DMA_SRC_INC | DMA_DEST_INC | DMA_16BIT | DMA_DEST_RELOAD) << 16) | 1)
|
|
#define SCANLINE_EFFECT_DMACNT_32BIT (((DMA_ENABLE | DMA_START_HBLANK | DMA_REPEAT | DMA_SRC_INC | DMA_DEST_INC | DMA_32BIT | DMA_DEST_RELOAD) << 16) | 1)
|
|
|
|
#define SCANLINE_EFFECT_REG_BG0HOFS (REG_ADDR_BG0HOFS - REG_ADDR_BG0HOFS)
|
|
#define SCANLINE_EFFECT_REG_BG0VOFS (REG_ADDR_BG0VOFS - REG_ADDR_BG0HOFS)
|
|
#define SCANLINE_EFFECT_REG_BG1HOFS (REG_ADDR_BG1HOFS - REG_ADDR_BG0HOFS)
|
|
#define SCANLINE_EFFECT_REG_BG1VOFS (REG_ADDR_BG1VOFS - REG_ADDR_BG0HOFS)
|
|
#define SCANLINE_EFFECT_REG_BG2HOFS (REG_ADDR_BG2HOFS - REG_ADDR_BG0HOFS)
|
|
#define SCANLINE_EFFECT_REG_BG2VOFS (REG_ADDR_BG2VOFS - REG_ADDR_BG0HOFS)
|
|
#define SCANLINE_EFFECT_REG_BG3HOFS (REG_ADDR_BG3HOFS - REG_ADDR_BG0HOFS)
|
|
#define SCANLINE_EFFECT_REG_BG3VOFS (REG_ADDR_BG3VOFS - REG_ADDR_BG0HOFS)
|
|
|
|
struct ScanlineEffectParams
|
|
{
|
|
volatile void *dmaDest;
|
|
u32 dmaControl;
|
|
u8 initState;
|
|
u8 unused9;
|
|
};
|
|
|
|
struct ScanlineEffect
|
|
{
|
|
void *dmaSrcBuffers[2];
|
|
volatile void *dmaDest;
|
|
u32 dmaControl;
|
|
void (*setFirstScanlineReg)(void);
|
|
u8 srcBuffer;
|
|
u8 state;
|
|
u8 unused16;
|
|
u8 unused17;
|
|
u8 waveTaskId;
|
|
};
|
|
|
|
extern struct ScanlineEffect gScanlineEffect;
|
|
|
|
extern u16 ALIGNED(4) gScanlineEffectRegBuffers[2][0x3C0];
|
|
|
|
void ScanlineEffect_Stop(void);
|
|
void ScanlineEffect_Clear(void);
|
|
void ScanlineEffect_SetParams(struct ScanlineEffectParams);
|
|
void ScanlineEffect_InitHBlankDmaTransfer(void);
|
|
u8 ScanlineEffect_InitWave(u8 startLine, u8 endLine, u8 frequency, u8 amplitude, u8 delayInterval, u8 regOffset, bool8 applyBattleBgOffsets);
|
|
|
|
#endif // GUARD_SCANLINE_EFFECT_H
|