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| author | Swastik Baranwal <swstkbaranwal@gmail.com> | 2019-06-23 18:47:35 +0530 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-06-23 18:47:35 +0530 |
| commit | 99703c6ab831d34e6859d8a8f53ba8e73dc4d3d9 (patch) | |
| tree | 3a712d3039d152616af58a45a13d82c40a87e58f /include/scanline_effect.h | |
| parent | 6d190f861e3559eec922cd760778c0cba6e08397 (diff) | |
| parent | 9ee0c34758a63f8c00724b6fc984b4e96be2f7af (diff) | |
Merge pull request #5 from pret/master
Take files
Diffstat (limited to 'include/scanline_effect.h')
| -rw-r--r-- | include/scanline_effect.h | 46 |
1 files changed, 44 insertions, 2 deletions
diff --git a/include/scanline_effect.h b/include/scanline_effect.h index d49f5b4d6..5bd8b5546 100644 --- a/include/scanline_effect.h +++ b/include/scanline_effect.h @@ -1,6 +1,48 @@ #ifndef GUARD_SCANLINE_EFFECT_H #define GUARD_SCANLINE_EFFECT_H -void remove_some_task(void); +// 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) -#endif //GUARD_SCANLINE_EFFECT_H +#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 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 a7); + +#endif // GUARD_SCANLINE_EFFECT_H |