oot/include/ultra64/gs2dex.h

#ifndef	GS2DEX_H
#define	GS2DEX_H

#ifdef _LANGUAGE_C_PLUS_PLUS
extern "C" {
#endif

/*===========================================================================*
 *	Macro
 *===========================================================================*/
#define	GS_CALC_DXT(line)	(((1<< G_TX_DXT_FRAC)-1)/(line)+1)
#define	GS_PIX2TMEM(pix, siz)	((pix)>>(4-(siz)))
#define	GS_PIX2DXT(pix, siz)	GS_CALC_DXT(GS_PIX2TMEM((pix), (siz)))

/*===========================================================================*
 *	Data structures for S2DEX microcode
 *===========================================================================*/

/*---------------------------------------------------------------------------*
 *	Background
 *---------------------------------------------------------------------------*/
#define	G_BGLT_LOADBLOCK	0x0033
#define	G_BGLT_LOADTILE		0xfff4

#define	G_BG_FLAG_FLIPS		0x01
#define	G_BG_FLAG_FLIPT		0x10

/* Non scalable background plane */
typedef	struct	{
  u16   imageX;		/* x-coordinate of upper-left position of texture (u10.5) */
  u16	imageW;		/* width of the texture (u10.2) */
  s16	frameX;		/* upper-left position of transferred frame (s10.2) */
  u16	frameW;		/* width of transferred frame (u10.2) */

  u16   imageY; 	/* y-coordinate of upper-left position of texture (u10.5) */
  u16	imageH;		/* height of the texture (u10.2) */
  s16	frameY;		/* upper-left position of transferred frame (s10.2) */
  u16	frameH;		/* height of transferred frame (u10.2) */

  u64  *imagePtr;	/* texture source address on DRAM */
  u16	imageLoad;	/* which to use, LoadBlock or  LoadTile */
  u8	imageFmt;	/* format of texel - G_IM_FMT_*  */
  u8	imageSiz;	/* size of texel - G_IM_SIZ_*   */
  u16   imagePal; 	/* pallet number  */
  u16	imageFlip;	/* right & left image inversion (Inverted by G_BG_FLAG_FLIPS) */

  /* The following is set in the initialization routine guS2DInitBg(). There is no need for the user to set it. */
  u16	tmemW;		/* TMEM width and Word size of frame 1 line.
                           At LoadBlock, GS_PIX2TMEM(imageW/4,imageSiz)
                           At LoadTile  GS_PIX2TMEM(frameW/4,imageSiz)+1 */
  u16	tmemH;		/* height of TMEM loadable at a time (s13.2) 4 times value
			   When the normal texture, 512/tmemW*4
			   When the CI texture, 256/tmemW*4 */
  u16	tmemLoadSH;	/* SH value
			   At LoadBlock, tmemSize/2-1
			   At LoadTile, tmemW*16-1 */
  u16	tmemLoadTH;	/* TH value or Stride value
			   At LoadBlock, GS_CALC_DXT(tmemW)
			   At LoadTile, tmemH-1 */
  u16	tmemSizeW;	/* skip value of imagePtr for image 1-line
			   At LoadBlock, tmemW*2
                           At LoadTile, GS_PIX2TMEM(imageW/4,imageSiz)*2 */
  u16	tmemSize;	/* skip value of imagePtr for 1-loading
			   = tmemSizeW*tmemH                          */
} uObjBg_t;		/* 40 bytes */

/* Scalable background plane */
typedef	struct	{
  u16   imageX;		/* x-coordinate of upper-left position of texture (u10.5) */
  u16	imageW;		/* width of texture (u10.2) */
  s16	frameX;		/* upper-left position of transferred frame (s10.2) */
  u16	frameW;		/* width of transferred frame (u10.2) */

  u16   imageY; 	/* y-coordinate of upper-left position of texture (u10.5) */
  u16	imageH;		/* height of texture (u10.2) */
  s16	frameY;		/* upper-left position of transferred frame (s10.2) */
  u16	frameH;		/* height of transferred frame (u10.2) */

  u64  *imagePtr;	/* texture source address on DRAM */
  u16	imageLoad;	/* Which to use, LoadBlock or LoadTile? */
  u8	imageFmt;	/* format of texel - G_IM_FMT_*  */
  u8	imageSiz;	/* size of texel - G_IM_SIZ_*  */
  u16   imagePal; 	/* pallet number */
  u16	imageFlip;	/* right & left image inversion (Inverted by G_BG_FLAG_FLIPS) */

  u16	scaleW;		/* scale value of X-direction (u5.10) */
  u16	scaleH;		/* scale value of Y-direction (u5.10) */
  s32	imageYorig;	/* start point of drawing on image (s20.5) */

  u8	padding[4];

} uObjScaleBg_t;	/* 40 bytes */

typedef union {
  uObjBg_t        b;
  uObjScaleBg_t   s;
  long long int   force_structure_alignment;
} uObjBg;

/*---------------------------------------------------------------------------*
 *	2D Objects
 *---------------------------------------------------------------------------*/
#define	G_OBJ_FLAG_FLIPS	1<<0		/* inversion to S-direction */
#define	G_OBJ_FLAG_FLIPT	1<<4		/* nversion to T-direction */

typedef struct {
  s16  objX;		/* s10.2 OBJ x-coordinate of upper-left end */
  u16  scaleW;		/* u5.10 Scaling of u5.10 width direction   */
  u16  imageW;		/* u10.5 width of u10.5 texture (length of S-direction) */
  u16  paddingX;	/* Unused - Always 0 */
  s16  objY;		/* s10.2 OBJ y-coordinate of s10.2 OBJ upper-left end */
  u16  scaleH;		/* u5.10 Scaling of u5.10 height direction */
  u16  imageH;		/* u10.5 height of u10.5 texture (length of T-direction) */
  u16  paddingY;	/* Unused - Always 0 */
  u16  imageStride;	/* folding width of texel (In units of 64bit word) */
  u16  imageAdrs;	/* texture header position in TMEM (In units of 64bit word) */
  u8   imageFmt;	/* format of texel - G_IM_FMT_* */
  u8   imageSiz;	/* size of texel - G_IM_SIZ_* */
  u8   imagePal;	/* pallet number (0-7) */
  u8   imageFlags;	/* The display flag - G_OBJ_FLAG_FLIP* */
} uObjSprite_t;		/* 24 bytes */

typedef union {
  uObjSprite_t      s;
  long long int   force_structure_alignment;
} uObjSprite;

/*---------------------------------------------------------------------------*
 *	2D Matrix
 *---------------------------------------------------------------------------*/
typedef struct {
  s32   A, B, C, D;     /* s15.16 */
  s16   X, Y;           /* s10.2  */
  u16   BaseScaleX;	/* u5.10  */
  u16   BaseScaleY;	/* u5.10  */
} uObjMtx_t;		/* 24 bytes */

typedef union {
  uObjMtx_t	m;
  long long int force_structure_alignment;
} uObjMtx;

typedef struct {
  s16   X, Y;           /* s10.2  */
  u16   BaseScaleX;	/* u5.10  */
  u16   BaseScaleY;	/* u5.10  */
} uObjSubMtx_t;		/* 8 bytes */

typedef union {
  uObjSubMtx_t	m;
  long long int force_structure_alignment;
} uObjSubMtx;

/*---------------------------------------------------------------------------*
 *	Loading into TMEM
 *---------------------------------------------------------------------------*/
#define	G_OBJLT_TXTRBLOCK	0x00001033
#define	G_OBJLT_TXTRTILE	0x00fc1034
#define	G_OBJLT_TLUT		0x00000030

#define	GS_TB_TSIZE(pix,siz)	(GS_PIX2TMEM((pix),(siz))-1)
#define	GS_TB_TLINE(pix,siz)	(GS_CALC_DXT(GS_PIX2TMEM((pix),(siz))))

typedef	struct	{
  u32	type;		/* G_OBJLT_TXTRBLOCK divided into types */
  u64	*image;		/* texture source address on DRAM */
  u16	tmem;		/* loaded TMEM word address (8byteWORD) */
  u16	tsize;		/* Texture size, Specified by macro GS_TB_TSIZE() */
  u16	tline;		/* width of Texture 1-line, Specified by macro GS_TB_TLINE() */
  u16	sid;		/* STATE ID Multipled by 4 (Either one of  0, 4, 8 and 12) */
  u32	flag;		/* STATE flag  */
  u32	mask;		/* STATE mask  */
} uObjTxtrBlock_t;		/* 24 bytes */

#define	GS_TT_TWIDTH(pix,siz)	((GS_PIX2TMEM((pix), (siz))<<2)-1)
#define	GS_TT_THEIGHT(pix,siz)	(((pix)<<2)-1)

typedef	struct	{
  u32	type;		/* G_OBJLT_TXTRTILE divided into types */
  u64	*image;		/* texture source address on DRAM */
  u16	tmem;		/* loaded TMEM word address (8byteWORD)*/
  u16	twidth;		/* width of Texture (Specified by macro GS_TT_TWIDTH()) */
  u16	theight;	/* height of Texture (Specified by macro GS_TT_THEIGHT()) */
  u16	sid;		/* STATE ID Multipled by 4 (Either one of  0, 4, 8 and 12) */
  u32	flag;		/* STATE flag  */
  u32	mask;		/* STATE mask  */
} uObjTxtrTile_t;		/* 24 bytes */

#define	GS_PAL_HEAD(head)	((head)+256)
#define	GS_PAL_NUM(num)		((num)-1)

typedef	struct	{
  u32	type;		/* G_OBJLT_TLUT divided into types */
  u64	*image;		/* texture source address on DRAM */
  u16	phead;		/* pallet number of load header (Between 256 and 511) */
  u16	pnum;		/* loading pallet number -1 */
  u16   zero;		/* Assign 0 all the time */
  u16	sid;		/* STATE ID Multipled by 4 (Either one of  0, 4, 8 and 12)*/
  u32	flag;		/* STATE flag  */
  u32	mask;		/* STATE mask  */
} uObjTxtrTLUT_t;		/* 24 bytes */

typedef union {
  uObjTxtrBlock_t      block;
  uObjTxtrTile_t       tile;
  uObjTxtrTLUT_t       tlut;
  long long int   force_structure_alignment;
} uObjTxtr;

/*---------------------------------------------------------------------------*
 *	Loading into TMEM & 2D Objects
 *---------------------------------------------------------------------------*/
typedef	struct	{
  uObjTxtr	txtr;
  uObjSprite	sprite;
} uObjTxSprite;		/* 48 bytes */

/*===========================================================================*
 *	GBI Commands for S2DEX microcode
 *===========================================================================*/
/* GBI Header */
#ifdef	F3DEX_GBI_2
#define	G_OBJ_RECTANGLE_R	0xda
#define	G_OBJ_MOVEMEM		0xdc
#define	G_RDPHALF_0		0xe4
#define	G_OBJ_RECTANGLE		0x01
#define	G_OBJ_SPRITE		0x02
#define	G_SELECT_DL		0x04
#define	G_OBJ_LOADTXTR		0x05
#define	G_OBJ_LDTX_SPRITE	0x06
#define	G_OBJ_LDTX_RECT		0x07
#define	G_OBJ_LDTX_RECT_R	0x08
#define	G_BG_1CYC		0x09
#define	G_BG_COPY		0x0a
#define	G_OBJ_RENDERMODE	0x0b
#else
#define	G_BG_1CYC		0x01
#define	G_BG_COPY		0x02
#define	G_OBJ_RECTANGLE		0x03
#define	G_OBJ_SPRITE		0x04
#define	G_OBJ_MOVEMEM		0x05
#define	G_SELECT_DL		0xb0
#define	G_OBJ_RENDERMODE	0xb1
#define	G_OBJ_RECTANGLE_R	0xb2
#define	G_OBJ_LOADTXTR		0xc1
#define	G_OBJ_LDTX_SPRITE	0xc2
#define	G_OBJ_LDTX_RECT		0xc3
#define	G_OBJ_LDTX_RECT_R	0xc4
#define	G_RDPHALF_0		0xe4
#endif

/*---------------------------------------------------------------------------*
 *	Background wrapped screen
 *---------------------------------------------------------------------------*/
#define	gSPBgRectangle(pkt, m, mptr)  gDma0p((pkt),(m),(mptr),0)
#define	gsSPBgRectangle(m, mptr)      gsDma0p(     (m),(mptr),0)
#define	gSPBgRectCopy(pkt, mptr)      gSPBgRectangle((pkt), G_BG_COPY, (mptr))
#define	gsSPBgRectCopy(mptr)	      gsSPBgRectangle(      G_BG_COPY, (mptr))
#define	gSPBgRect1Cyc(pkt, mptr)      gSPBgRectangle((pkt), G_BG_1CYC, (mptr))
#define	gsSPBgRect1Cyc(mptr)	      gsSPBgRectangle(      G_BG_1CYC, (mptr))

/*---------------------------------------------------------------------------*
 *	2D Objects
 *---------------------------------------------------------------------------*/
#define	gSPObjSprite(pkt, mptr)       gDma0p((pkt),G_OBJ_SPRITE,     (mptr),0)
#define	gsSPObjSprite(mptr)           gsDma0p(     G_OBJ_SPRITE,     (mptr),0)
#define	gSPObjRectangle(pkt, mptr)    gDma0p((pkt),G_OBJ_RECTANGLE,  (mptr),0)
#define	gsSPObjRectangle(mptr)        gsDma0p(     G_OBJ_RECTANGLE,  (mptr),0)
#define	gSPObjRectangleR(pkt, mptr)   gDma0p((pkt),G_OBJ_RECTANGLE_R,(mptr),0)
#define	gsSPObjRectangleR(mptr)       gsDma0p(     G_OBJ_RECTANGLE_R,(mptr),0)

/*---------------------------------------------------------------------------*
 *	2D Matrix
 *---------------------------------------------------------------------------*/
#define	gSPObjMatrix(pkt, mptr)	      gDma1p((pkt),G_OBJ_MOVEMEM,(mptr),0,23)
#define	gsSPObjMatrix(mptr)           gsDma1p(     G_OBJ_MOVEMEM,(mptr),0,23)
#define	gSPObjSubMatrix(pkt, mptr)    gDma1p((pkt),G_OBJ_MOVEMEM,(mptr),2, 7)
#define	gsSPObjSubMatrix(mptr)        gsDma1p(     G_OBJ_MOVEMEM,(mptr),2, 7)

/*---------------------------------------------------------------------------*
 *	Loading into TMEM
 *---------------------------------------------------------------------------*/
#define	gSPObjLoadTxtr(pkt, tptr)     gDma0p((pkt),G_OBJ_LOADTXTR,   (tptr),23)
#define	gsSPObjLoadTxtr(tptr)         gsDma0p(     G_OBJ_LOADTXTR,   (tptr),23)
#define	gSPObjLoadTxSprite(pkt, tptr) gDma0p((pkt),G_OBJ_LDTX_SPRITE,(tptr),47)
#define	gsSPObjLoadTxSprite(tptr)     gsDma0p(     G_OBJ_LDTX_SPRITE,(tptr),47)
#define	gSPObjLoadTxRect(pkt, tptr)   gDma0p((pkt),G_OBJ_LDTX_RECT,  (tptr),47)
#define	gsSPObjLoadTxRect(tptr)       gsDma0p(     G_OBJ_LDTX_RECT,  (tptr),47)
#define	gSPObjLoadTxRectR(pkt, tptr)  gDma0p((pkt),G_OBJ_LDTX_RECT_R,(tptr),47)
#define	gsSPObjLoadTxRectR(tptr)      gsDma0p(     G_OBJ_LDTX_RECT_R,(tptr),47)

/*---------------------------------------------------------------------------*
 *	Select Display List
 *---------------------------------------------------------------------------*/
#define	gSPSelectDL(pkt, mptr, sid, flag, mask)	\
{	gDma1p((pkt), G_RDPHALF_0, (flag), (u32)(mptr) & 0xffff, (sid)); \
	gDma1p((pkt), G_SELECT_DL, (mask), (u32)(mptr) >> 16, G_DL_PUSH); }
#define	gsSPSelectDL(mptr, sid, flag, mask)	\
{	gsDma1p(G_RDPHALF_0, (flag), (u32)(mptr) & 0xffff, (sid)); \
	gsDma1p(G_SELECT_DL, (mask), (u32)(mptr) >> 16, G_DL_PUSH); }
#define	gSPSelectBranchDL(pkt, mptr, sid, flag, mask)	\
{	gDma1p((pkt), G_RDPHALF_0, (flag), (u32)(mptr) & 0xffff, (sid)); \
	gDma1p((pkt), G_SELECT_DL, (mask), (u32)(mptr) >> 16, G_DL_NOPUSH); }
#define	gsSPSelectBranchDL(mptr, sid, flag, mask)	\
{	gsDma1p(G_RDPHALF_0, (flag), (u32)(mptr) & 0xffff, (sid)); \
	gsDma1p(G_SELECT_DL, (mask), (u32)(mptr) >> 16, G_DL_NOPUSH); }

/*---------------------------------------------------------------------------*
 *	Set general status
 *---------------------------------------------------------------------------*/
#define	G_MW_GENSTAT	0x08	/* Note that it is the same value of G_MW_FOG */

#define	gSPSetStatus(pkt, sid, val)	\
	gMoveWd((pkt), G_MW_GENSTAT, (sid), (val))
#define	gsSPSetStatus(sid, val)	\
	gsMoveWd(      G_MW_GENSTAT, (sid), (val))

/*---------------------------------------------------------------------------*
 *	Set Object Render Mode
 *---------------------------------------------------------------------------*/
#define	G_OBJRM_NOTXCLAMP	0x01
#define	G_OBJRM_XLU		0x02	/* Ignored */
#define	G_OBJRM_ANTIALIAS	0x04	/* Ignored */
#define	G_OBJRM_BILERP		0x08
#define	G_OBJRM_SHRINKSIZE_1	0x10
#define	G_OBJRM_SHRINKSIZE_2	0x20
#define	G_OBJRM_WIDEN		0x40

#define	gSPObjRenderMode(pkt, mode)   gImmp1((pkt),G_OBJ_RENDERMODE,(mode))
#define	gsSPObjRenderMode(mode)	      gsImmp1(     G_OBJ_RENDERMODE,(mode))

/*===========================================================================*
 *	Render Mode Macro
 *===========================================================================*/
#define RM_RA_SPRITE(clk)                                      \
        AA_EN | CVG_DST_CLAMP |                                \
        CVG_X_ALPHA | ALPHA_CVG_SEL | ZMODE_OPA | TEX_EDGE |   \
        GBL_c##clk(G_BL_CLR_IN, G_BL_A_IN, G_BL_CLR_MEM, G_BL_1MA)

#define G_RM_SPRITE		    G_RM_OPA_SURF
#define G_RM_SPRITE2		G_RM_OPA_SURF2
#define G_RM_RA_SPRITE  	RM_RA_SPRITE(1)
#define G_RM_RA_SPRITE2		RM_RA_SPRITE(2)
#define G_RM_AA_SPRITE		G_RM_AA_TEX_TERR
#define G_RM_AA_SPRITE2		G_RM_AA_TEX_TERR2
#define G_RM_XLU_SPRITE		G_RM_XLU_SURF
#define G_RM_XLU_SPRITE2	G_RM_XLU_SURF2
#define G_RM_AA_XLU_SPRITE	G_RM_AA_XLU_SURF
#define G_RM_AA_XLU_SPRITE2	G_RM_AA_XLU_SURF2

/*===========================================================================*
 *	External functions
 *===========================================================================*/

extern	void	guS2DInitBg(uObjBg *);

#ifdef	F3DEX_GBI_2
# define guS2DEmuBgRect1Cyc	guS2D2EmuBgRect1Cyc	/*Wrapper*/
# define guS2DEmuSetScissor	guS2D2EmuSetScissor	/*Wrapper*/
  extern void	guS2D2EmuSetScissor(u32, u32, u32, u32, u8);
  extern void	guS2D2EmuBgRect1Cyc(Gfx **, uObjBg *);
#else
  extern void	guS2DEmuSetScissor(u32, u32, u32, u32, u8);
  extern void	guS2DEmuBgRect1Cyc(Gfx **, uObjBg *);
#endif

#ifdef _LANGUAGE_C_PLUS_PLUS
}
#endif
#endif /* GS2DEX_H */

/*======== End of gs2dex.h ========*/