PA_SpecialFx.h File Reference

Special effects options. More...

Go to the source code of this file.

Defines
#define	REG_MOSAIC(screen)   _REG16(0x0400004C + (screen * 0x1000))
#define	REG_BLDCNT(screen)   _REG16(0x04000050 + (screen * 0x1000))
#define	REG_BLDALPHA(screen)   _REG16(0x04000052 + (screen * 0x1000))
#define	SFX_BG0   1
#define	SFX_BG1   2
#define	SFX_BG2   4
#define	SFX_BG3   8
#define	SFX_OBJ   16
#define	SFX_BD   32
#define	SFX_NONE   0
#define	SFX_ALPHA   1
#define	SFX_BRIGHTINC   2
#define	SFX_BRIGHTDEC   3
#define	PA_EnableBgMosaic(screen, bg)   _REG16(REG_BGCNT(screen, bg)) |= (1 << 6)
	Enable the mosaic effect for a given background
#define	PA_DisableBgMosaic(screen, bg)   _REG16(REG_BGCNT(screen, bg)) &= ~(1 << 6)
	Disable the mosaic effect for a given background
#define	PA_SetBgMosaicXY(screen, h_size, v_size)   {REG_MOSAIC(screen) &= 255; REG_MOSAIC(screen) |= (h_size + (v_size << 4));}
	Set the Mosaic parameters for the backgrounds
#define	PA_SetSpriteMosaicXY(screen, h_size, v_size)   {REG_MOSAIC(screen) &= (255 << 8); REG_MOSAIC(screen) |= ((h_size << 8) + (v_size << 12));}
	Set the Mosaic parameters for the sprites
#define	PA_EnableSpecialFx(screen, EffectType, FirstTarget, SecondTarget)   REG_BLDCNT(screen) = (FirstTarget + (SecondTarget << 8) + (EffectType << 6))
	Enable Special Effects and set whether backgrounds and sprites will use them or not. This also sets the type of Effect
#define	PA_DisableSpecialFx(screen)   REG_BLDCNT(screen) = 0
	Disable Special Effects
#define	PA_SetSFXAlpha(screen, Coeff1, Coeff2)   REG_BLDALPHA(screen) = Coeff1 + (Coeff2 << 8)
	Set the special effect parameters for Alpha-Blending

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Detailed Description

Special effects options.

Special effects (alpha-blending, luminosity, mosaic effect...)

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