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265 lines
9.0 KiB
C
265 lines
9.0 KiB
C
#ifndef GUARD_SPRITE_OAM_H
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#define GUARD_SPRITE_OAM_H
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// size: 0xC
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// This is probably used for blue/gold rescue team to convert from GBA OAM to their platform's OAM in AddSprite()
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typedef struct unkStruct_2039DB0
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{
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u16 unk0; // SpriteOAM attrib1 mask
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u16 unk2; // SpriteOAM attrib2 mask
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u16 unk4; // SpriteOAM attrib3 mask
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u16 unk6; // SpriteOAM attrib1 value
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u16 unk8; // SpriteOAM attrib2 value
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u16 unkA; // SpriteOAM attrib3 value
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} unkStruct_2039DB0;
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// size: 0x8. Similar to struct OamData but unk6 is not copied to OAM
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typedef struct SpriteOAM
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{
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// y:8 affineMode1:1 affineMode2:1 objMode:2 mosaic:1 bpp:1 shape:2
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/* 0x0 */ u16 attrib1;
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// x:9 matrixNum:5 size:2
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/* 0x2 */ u16 attrib2;
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// tileNum:10 priority:2 paletteNum:4
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/* 0x4 */ u16 attrib3;
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// unk6_0:1 unk6_1:1 unk6_2:1 unk6_3:1 unk6_4:12
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u16 unk6;
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} SpriteOAM;
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// The SpriteOAM struct is handled with macros most likely.
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// Most funcs that deal with it look the same and do some weird bit manipulations one by one on the attributes.
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// It seems like there is a macro to initialize the structure to some default values...
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// attrib1
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#define SPRITEOAM_MAX_Y 0xFF
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#define SPRITEOAM_SHIFT_Y 0
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#define SPRITEOAM_MASK_Y (SPRITEOAM_MAX_Y << SPRITEOAM_SHIFT_Y) // ~ 0xFF00
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#define SPRITEOAM_MAX_AFFINEMODE1 1
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#define SPRITEOAM_SHIFT_AFFINEMODE1 8
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#define SPRITEOAM_MASK_AFFINEMODE1 (SPRITEOAM_MAX_AFFINEMODE1 << SPRITEOAM_SHIFT_AFFINEMODE1) // ~ 0xFEFF
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#define SPRITEOAM_MAX_AFFINEMODE2 1
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#define SPRITEOAM_SHIFT_AFFINEMODE2 9
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#define SPRITEOAM_MASK_AFFINEMODE2 (SPRITEOAM_MAX_AFFINEMODE2 << SPRITEOAM_SHIFT_AFFINEMODE2) // ~ 0xFDFF
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#define SPRITEOAM_MAX_OBJMODE 3
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#define SPRITEOAM_SHIFT_OBJMODE 10
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#define SPRITEOAM_MASK_OBJMODE (SPRITEOAM_MAX_OBJMODE << SPRITEOAM_SHIFT_OBJMODE) // ~ 0xF3FF
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#define SPRITEOAM_MAX_MOSAIC 1
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#define SPRITEOAM_SHIFT_MOSAIC 12
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#define SPRITEOAM_MASK_MOSAIC (SPRITEOAM_MAX_MOSAIC << SPRITEOAM_SHIFT_MOSAIC) // ~ 0xEFFF
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#define SPRITEOAM_MAX_BPP 1
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#define SPRITEOAM_SHIFT_BPP 13
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#define SPRITEOAM_MASK_BPP (SPRITEOAM_MAX_BPP << SPRITEOAM_SHIFT_BPP) // ~ 0xDFFF
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#define SPRITEOAM_MAX_SHAPE 3
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#define SPRITEOAM_SHIFT_SHAPE 14
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#define SPRITEOAM_MASK_SHAPE (SPRITEOAM_MAX_SHAPE << SPRITEOAM_SHIFT_SHAPE) // ~ 0x3FFF
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// attrib2
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#define SPRITEOAM_MAX_X 0x1FF
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#define SPRITEOAM_SHIFT_X 0
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#define SPRITEOAM_MASK_X (SPRITEOAM_MAX_X << SPRITEOAM_SHIFT_X) // ~ 0xFE00
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#define SPRITEOAM_MAX_MATRIXNUM 31
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#define SPRITEOAM_SHIFT_MATRIXNUM 9
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#define SPRITEOAM_MASK_MATRIXNUM (SPRITEOAM_MAX_MATRIXNUM << SPRITEOAM_SHIFT_MATRIXNUM) // ~ 0xC1FF
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#define SPRITEOAM_MAX_SIZE 3
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#define SPRITEOAM_SHIFT_SIZE 14
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#define SPRITEOAM_MASK_SIZE (SPRITEOAM_MAX_SIZE << SPRITEOAM_SHIFT_SIZE) // ~ 0x3FFF
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// attrib3
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#define SPRITEOAM_MAX_TILENUM 0x3FF
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#define SPRITEOAM_SHIFT_TILENUM 0
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#define SPRITEOAM_MASK_TILENUM (SPRITEOAM_MAX_TILENUM << SPRITEOAM_SHIFT_TILENUM) // ~ 0xFC00
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#define SPRITEOAM_MAX_PRIORITY 3
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#define SPRITEOAM_SHIFT_PRIORITY 10
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#define SPRITEOAM_MASK_PRIORITY (SPRITEOAM_MAX_PRIORITY << SPRITEOAM_SHIFT_PRIORITY) // ~ 0xF3FF
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#define SPRITEOAM_MAX_PALETTENUM 15
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#define SPRITEOAM_SHIFT_PALETTENUM 12
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#define SPRITEOAM_MASK_PALETTENUM (SPRITEOAM_MAX_PALETTENUM << SPRITEOAM_SHIFT_PALETTENUM) // ~ 0xFFF
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// unk6
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#define SPRITEOAM_MAX_UNK6_0 1
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#define SPRITEOAM_SHIFT_UNK6_0 0
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#define SPRITEOAM_MASK_UNK6_0 (SPRITEOAM_MAX_UNK6_0 << SPRITEOAM_SHIFT_UNK6_0) // ~ 0xFFFE
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#define SPRITEOAM_MAX_UNK6_1 1
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#define SPRITEOAM_SHIFT_UNK6_1 1
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#define SPRITEOAM_MASK_UNK6_1 (SPRITEOAM_MAX_UNK6_1 << SPRITEOAM_SHIFT_UNK6_1) // ~ 0xFFFD
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#define SPRITEOAM_MAX_UNK6_2 1
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#define SPRITEOAM_SHIFT_UNK6_2 2
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#define SPRITEOAM_MASK_UNK6_2 (SPRITEOAM_MAX_UNK6_2 << SPRITEOAM_SHIFT_UNK6_2) // ~ 0xFFFB
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/* Not seen yet
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#define SPRITEOAM_MAX_UNK6_3 1
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#define SPRITEOAM_SHIFT_UNK6_3 3
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#define SPRITEOAM_MASK_UNK6_3 (SPRITEOAM_MAX_UNK6_3 << SPRITEOAM_SHIFT_UNK6_3) // ~ 0xFFF7
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*/
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// Seems to be the "working" Y coord. Gets copied to attrib1's Y coord in `AddSprite()`.
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// kermalis is too lazy to rename it atm since we're still figuring things out
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#define SPRITEOAM_MAX_UNK6_4 0xFFF
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#define SPRITEOAM_SHIFT_UNK6_4 4
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#define SPRITEOAM_MASK_UNK6_4 (SPRITEOAM_MAX_UNK6_4 << SPRITEOAM_SHIFT_UNK6_4) // ~ 0xF
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// These seems to work most of the time when dealing with sprite pointers. However, these DO NOT match when dealing with local variables, for example a Sprite struct on the stack.
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// These have to be macros, because static inlines WON'T match.
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#define SpriteSetAffine1(spritePtr, _affine1) \
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{ \
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u32 affine1 = _affine1; \
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affine1 &= SPRITEOAM_MAX_AFFINEMODE1; \
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affine1 <<= SPRITEOAM_SHIFT_AFFINEMODE1; \
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(spritePtr)->attrib1 &= ~SPRITEOAM_MASK_AFFINEMODE1; \
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(spritePtr)->attrib1 |= affine1; \
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}
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#define SpriteSetAffine2(spritePtr, _affine2) \
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{ \
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u32 affine2 = _affine2; \
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affine2 &= SPRITEOAM_MAX_AFFINEMODE2; \
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affine2 <<= SPRITEOAM_SHIFT_AFFINEMODE2; \
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(spritePtr)->attrib1 &= ~SPRITEOAM_MASK_AFFINEMODE2; \
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(spritePtr)->attrib1 |= affine2; \
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}
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#define SpriteSetObjMode(spritePtr, _objMode) \
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{ \
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u32 objMode = _objMode; \
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objMode &= SPRITEOAM_MAX_OBJMODE; \
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objMode <<= SPRITEOAM_SHIFT_OBJMODE; \
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(spritePtr)->attrib1 &= ~SPRITEOAM_MASK_OBJMODE; \
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(spritePtr)->attrib1 |= objMode; \
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}
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#define SpriteSetMosaic(spritePtr, _mosaic) \
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{ \
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u32 mosaic = _mosaic; \
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mosaic &= SPRITEOAM_MAX_MOSAIC; \
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mosaic <<= SPRITEOAM_SHIFT_MOSAIC; \
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(spritePtr)->attrib1 &= ~SPRITEOAM_MASK_MOSAIC; \
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(spritePtr)->attrib1 |= mosaic; \
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}
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#define SpriteSetBpp(spritePtr, _bpp) \
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{ \
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u32 bpp = _bpp; \
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bpp &= SPRITEOAM_MAX_BPP; \
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bpp <<= SPRITEOAM_SHIFT_BPP; \
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(spritePtr)->attrib1 &= ~SPRITEOAM_MASK_BPP; \
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(spritePtr)->attrib1 |= bpp; \
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}
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#define SpriteSetShape(spritePtr, _shape) \
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{ \
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u32 shape = _shape; \
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shape &= SPRITEOAM_MAX_SHAPE; \
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shape <<= SPRITEOAM_SHIFT_SHAPE; \
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(spritePtr)->attrib1 &= ~SPRITEOAM_MASK_SHAPE; \
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(spritePtr)->attrib1 |= shape; \
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}
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#define SpriteSetTileNum(spritePtr, _tileNum) \
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{ \
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u32 tileNum = _tileNum; \
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tileNum &= SPRITEOAM_MAX_TILENUM; \
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tileNum <<= SPRITEOAM_SHIFT_TILENUM; \
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(spritePtr)->attrib3 &= ~SPRITEOAM_MASK_TILENUM; \
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(spritePtr)->attrib3 |= tileNum; \
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}
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#define SpriteSetPriority(spritePtr, _priority) \
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{ \
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u32 priority = _priority; \
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priority &= SPRITEOAM_MAX_PRIORITY; \
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priority <<= SPRITEOAM_SHIFT_PRIORITY; \
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(spritePtr)->attrib3 &= ~SPRITEOAM_MASK_PRIORITY; \
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(spritePtr)->attrib3 |= priority; \
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}
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#define SpriteSetPalNum(spritePtr, _palNum) \
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{ \
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u32 palNum = _palNum; \
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palNum &= SPRITEOAM_MAX_PALETTENUM; \
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palNum <<= SPRITEOAM_SHIFT_PALETTENUM; \
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(spritePtr)->attrib3 &= ~SPRITEOAM_MASK_PALETTENUM; \
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(spritePtr)->attrib3 |= palNum; \
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}
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#define SpriteSetMatrixNum(spritePtr, _matrixNum) \
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{ \
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u32 matrixNum = _matrixNum; \
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matrixNum &= SPRITEOAM_MAX_MATRIXNUM; \
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matrixNum <<= SPRITEOAM_SHIFT_MATRIXNUM; \
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(spritePtr)->attrib2 &= ~SPRITEOAM_MASK_MATRIXNUM; \
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(spritePtr)->attrib2 |= matrixNum; \
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}
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#define SpriteSetSize(spritePtr, _size) \
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{ \
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u32 size = _size; \
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size &= SPRITEOAM_MAX_SIZE; \
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size <<= SPRITEOAM_SHIFT_SIZE; \
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(spritePtr)->attrib2 &= ~SPRITEOAM_MASK_SIZE; \
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(spritePtr)->attrib2 |= size; \
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}
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#define SpriteSetX(spritePtr, _x) \
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{ \
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u32 xSpriteVal = _x; \
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xSpriteVal &= SPRITEOAM_MAX_X; \
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xSpriteVal <<= SPRITEOAM_SHIFT_X; \
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(spritePtr)->attrib2 &= ~SPRITEOAM_MASK_X; \
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(spritePtr)->attrib2 |= xSpriteVal; \
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}
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#define SpriteSetY(spritePtr, _y) \
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{ \
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u32 ySpriteVal = _y; \
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ySpriteVal &= SPRITEOAM_MAX_UNK6_4; \
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ySpriteVal <<= SPRITEOAM_SHIFT_UNK6_4; \
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(spritePtr)->unk6 &= ~SPRITEOAM_MASK_UNK6_4; \
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(spritePtr)->unk6 |= ySpriteVal; \
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}
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#define SpriteSetUnk6_0(spritePtr, _unk6_0) \
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{ \
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u32 unk6_0 = _unk6_0; \
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unk6_0 &= SPRITEOAM_MAX_UNK6_0; \
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unk6_0 <<= SPRITEOAM_SHIFT_UNK6_0; \
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(spritePtr)->unk6 &= ~SPRITEOAM_MASK_UNK6_0; \
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(spritePtr)->unk6 |= unk6_0; \
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}
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#define SpriteSetUnk6_1(spritePtr, _unk6_1) \
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{ \
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u32 unk6_1 = _unk6_1; \
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unk6_1 &= SPRITEOAM_MAX_UNK6_1; \
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unk6_1 <<= SPRITEOAM_SHIFT_UNK6_1; \
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(spritePtr)->unk6 &= ~SPRITEOAM_MASK_UNK6_1; \
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(spritePtr)->unk6 |= unk6_1; \
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}
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#define SpriteSetUnk6_2(spritePtr, _unk6_2) \
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{ \
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u32 unk6_2 = _unk6_2; \
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unk6_2 &= SPRITEOAM_MAX_UNK6_2; \
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unk6_2 <<= SPRITEOAM_SHIFT_UNK6_2; \
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(spritePtr)->unk6 &= ~SPRITEOAM_MASK_UNK6_2; \
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(spritePtr)->unk6 |= unk6_2; \
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}
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#endif // GUARD_SPRITE_OAM_H
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