SpaghettiKart/include/mk64.h

#ifndef MK64_H
#define MK64_H

#include <libultraship.h>
#include <string.h>
#include <libultra/gbi.h>

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @file mk64.h
 * Global header for mk64
 */

/*=======================
    Configuration
=======================*/

#define AUDIO_HEAP_SIZE 0x48C00
#define AUDIO_HEAP_INIT_SIZE 0x2600

#define DOUBLE_SIZE_ON_64_BIT(size) ((size) * (sizeof(void*) / 4))

#define SCREEN_WIDTH 320
#define SCREEN_HEIGHT 240

#define STACKSIZE 0x2000

// Border Height Define for NTSC Versions
#define BORDER_HEIGHT 1

typedef enum {
    /* 0x00 */ COURSE_MARIO_RACEWAY = 0,
    /* 0x01 */ COURSE_CHOCO_MOUNTAIN,
    /* 0x02 */ COURSE_BOWSER_CASTLE,
    /* 0x03 */ COURSE_BANSHEE_BOARDWALK,
    /* 0x04 */ COURSE_YOSHI_VALLEY,
    /* 0x05 */ COURSE_FRAPPE_SNOWLAND,
    /* 0x06 */ COURSE_KOOPA_BEACH,
    /* 0x07 */ COURSE_ROYAL_RACEWAY,
    /* 0x08 */ COURSE_LUIGI_RACEWAY,
    /* 0x09 */ COURSE_MOO_MOO_FARM,
    /* 0x0A */ COURSE_TOADS_TURNPIKE,
    /* 0x0B */ COURSE_KALIMARI_DESERT,
    /* 0x0C */ COURSE_SHERBET_LAND,
    /* 0x0D */ COURSE_RAINBOW_ROAD,
    /* 0x0E */ COURSE_WARIO_STADIUM,
    /* 0x0F */ COURSE_BLOCK_FORT,
    /* 0x10 */ COURSE_SKYSCRAPER,
    /* 0x11 */ COURSE_DOUBLE_DECK,
    /* 0x12 */ COURSE_DK_JUNGLE,
    /* 0x13 */ COURSE_BIG_DONUT,
    /* 0x14 */ COURSE_AWARD_CEREMONY,
    /* 0x15 */ NUM_COURSES
} COURSES;

#define COURSE_NULL 0xFF

typedef enum {
    /* 0x00 */ TIME_TRIAL_DATA_LUIGI_RACEWAY,
    /* 0x01 */ TIME_TRIAL_DATA_MOO_MOO_FARM,
    /* 0x02 */ TIME_TRIAL_DATA_KOOPA_BEACH,
    /* 0x03 */ TIME_TRIAL_DATA_KALAMARI_DESERT,
    /* 0x04 */ TIME_TRIAL_DATA_TOADS_TURNPIKE,
    /* 0x05 */ TIME_TRIAL_DATA_FRAPPE_SNOWLAND,
    /* 0x06 */ TIME_TRIAL_DATA_CHOCO_MOUNTAIN,
    /* 0x07 */ TIME_TRIAL_DATA_MARIO_RACEWAY,
    /* 0x08 */ TIME_TRIAL_DATA_WARIO_STADIUM,
    /* 0x09 */ TIME_TRIAL_DATA_SHERBET_LAND,
    /* 0x0A */ TIME_TRIAL_DATA_ROYAL_RACEWAY,
    /* 0x0B */ TIME_TRIAL_DATA_BOWSER_CASTLE,
    /* 0x0C */ TIME_TRIAL_DATA_DK_JUNGLE,
    /* 0x0D */ TIME_TRIAL_DATA_YOSHI_VALLEY,
    /* 0x0E */ TIME_TRIAL_DATA_BANSHEE_BOARDWALK,
    /* 0x0F */ TIME_TRIAL_DATA_RAINBOW_ROAD,
    /* 0x10 */ NUM_TIME_TRIAL_DATA
} TIME_TRIAL_DATA_INDEX;

/**
 * @brief The different types of surface in the game.
 */
enum SURFACE_TYPE {
    /* -0x1 */ SURFACE_DEFAULT = -1,
    /* 0x00 */ AIRBORNE,
    /* 0x01 */ ASPHALT, // Luigi's Raceway, Toad's Turnpike, Koopa Troop beach shortcut tunnel, Mario Raceway, Royal
                        // Raceway, Rainbow Road, Block Fort, Double Deck, Skyscraper
    /* 0x02 */ DIRT,    // Luigi's Raceway, Moo Moo Farm, Kalimiari Desert on course, Choco Mountain, Wario Stadium, DK
                        // Jungle on course, Yoshi Valley
    /* 0x03 */ SAND,    // Koopa Troopa Beach light color, Royal Raceway
    /* 0x04 */ STONE,   // Royal Raceway castle entrance, Bowser's Castle
    /* 0x05 */ SNOW,    // Frappe Snowland on course, Sherber Land tunnel
    /* 0x06 */ BRIDGE,  // Royal Raceway castle bridges (even the wooden one), Banshee's Boardwalk, Big Donut
    /* 0x07 */ SAND_OFFROAD, // Mario Raceway
    /* 0x08 */ GRASS,        // Luigi's Raceway, Mario Raceway, Royal Raceway, Bowser's Castle, DK Jungle, Yoshi Valley
    /* 0x09 */ ICE,          // Sherbert Land
    /* 0x0A */ WET_SAND,     // Koop Troopa Beach dark color
    /* 0x0B */ SNOW_OFFROAD, // Frappe Snowland off course
    /* 0x0C */ CLIFF,        // Koopa Troopa Beach, Choco Mountain
    /* 0x0D */ DIRT_OFFROAD, // Kalimari Desert off course
    /* 0x0E */ TRAIN_TRACK,  // Kalimari Desert
    /* 0x0F */ CAVE,         // DK Jungle cave
    /* 0x10 */ ROPE_BRIDGE,  // Bowser's Castle bridge 2, DK Jungle bridge
    /* 0x11 */ WOOD_BRIDGE,  // Frappe Snowland bridge, Bowser's Castle bridge 1,3, Yoshi Valley bridge 2
    /* 0xFB */ WATER_SURFACE = 0xFB, // Water effect and Lakitu picks up the player
    /* 0xFC */ BOOST_RAMP_WOOD = 0xFC, // DK Jungle
    /* 0xFD */ OUT_OF_BOUNDS,          // DK Jungle river island oob / out of bounds
    /* 0xFE */ BOOST_RAMP_ASPHALT,     // Royal Raceway
    /* 0xFF */ RAMP                    // Koopa Troopa beach
};

#define GFX_GET_OPCODE(var) ((uint32_t) ((var) & 0xFF000000))

// Pointer casting is technically UB, and avoiding it gets rid of endian issues
// as well as a nice side effect.
#ifdef AVOID_UB
#define GET_HIGH_U16_OF_32(var) ((u16) ((var) >> 16))
#define GET_HIGH_S16_OF_32(var) ((s16) ((var) >> 16))
#define GET_LOW_U16_OF_32(var) ((u16) ((var) & 0xFFFF))
#define GET_LOW_S16_OF_32(var) ((s16) ((var) & 0xFFFF))
#define SET_HIGH_U16_OF_32(var, x) ((var) = ((var) & 0xFFFF) | ((x) << 16))
#define SET_HIGH_S16_OF_32(var, x) ((var) = ((var) & 0xFFFF) | ((x) << 16))
#else
#define GET_HIGH_U16_OF_32(var) (((u16*) &(var))[0])
#define GET_HIGH_S16_OF_32(var) (((s16*) &(var))[0])
#define GET_LOW_U16_OF_32(var) (((u16*) &(var))[1])
#define GET_LOW_S16_OF_32(var) (((s16*) &(var))[1])
#define SET_HIGH_U16_OF_32(var, x) ((((u16*) &(var))[0]) = (x))
#define SET_HIGH_S16_OF_32(var, x) ((((s16*) &(var))[0]) = (x))
#endif

#define MACRO_COLOR_FLAG(r, g, b, flag) (r & ~0x3) | (flag & 0x3), (g & ~0x3) | ((flag >> 2) & 0x3), b

// Extra gbi commands
void gSPSegmentLoadRes(void* value, int segNum, uintptr_t target);
void gSPDisplayList(Gfx* pkt, Gfx* dl);
void gSPDisplayListOffset(Gfx* pkt, Gfx* dl, int offset);
void gSPVertex(Gfx* pkt, uintptr_t v, int n, int v0);
void gSPInvalidateTexCache(Gfx* pkt, uintptr_t texAddr);

#define TEXTURE_LOAD_FIX 2
#define TEXTURE_SIZE_FIX 1

// Dumb hack to fix load tile size on higher than native resolutions
#define gMKLoadTextureTile(pkt, timg, fmt, siz, width, height, uls, ult, lrs, lrt, pal, cms, cmt, masks, maskt,        \
                           shifts, shiftt)                                                                             \
    _DW({                                                                                                              \
        gDPSetTextureImage(pkt, fmt, siz, width, timg);                                                                \
        gDPSetTile(pkt, fmt, siz, (((((lrs) - (uls) + 1) * siz##_TILE_BYTES) + 7) >> 3), 0, G_TX_LOADTILE, 0, cmt,     \
                   maskt, shiftt, cms, masks, shifts);                                                                 \
        gDPLoadSync(pkt);                                                                                              \
        gDPLoadTile(pkt, G_TX_LOADTILE, (uls) << G_TEXTURE_IMAGE_FRAC, (ult) << G_TEXTURE_IMAGE_FRAC,                  \
                    (lrs) << G_TEXTURE_IMAGE_FRAC, (lrt + TEXTURE_LOAD_FIX) << G_TEXTURE_IMAGE_FRAC);                  \
        gDPPipeSync(pkt);                                                                                              \
        gDPSetTile(pkt, fmt, siz, (((((lrs) - (uls) + 1) * siz##_LINE_BYTES) + 7) >> 3), 0, G_TX_RENDERTILE, pal, cmt, \
                   maskt, shiftt, cms, masks, shifts);                                                                 \
        gDPSetTileSize(pkt, G_TX_RENDERTILE, (uls) << G_TEXTURE_IMAGE_FRAC, (ult) << G_TEXTURE_IMAGE_FRAC,             \
                       (lrs) << G_TEXTURE_IMAGE_FRAC, (lrt - TEXTURE_SIZE_FIX) << G_TEXTURE_IMAGE_FRAC);               \
    })

#define gMKLoadTextureTile_4b(pkt, timg, fmt, width, height, uls, ult, lrs, lrt, pal, cms, cmt, masks, maskt, shifts, \
                              shiftt)                                                                                 \
    _DW({                                                                                                             \
        gDPSetTextureImage(pkt, fmt, G_IM_SIZ_8b, ((width) >> 1), timg);                                              \
        gDPSetTile(pkt, fmt, G_IM_SIZ_8b, (((((lrs) - (uls) + 1) >> 1) + 7) >> 3), 0, G_TX_LOADTILE, 0, cmt, maskt,   \
                   shiftt, cms, masks, shifts);                                                                       \
        gDPLoadSync(pkt);                                                                                             \
        gDPLoadTile(pkt, G_TX_LOADTILE, (uls) << (G_TEXTURE_IMAGE_FRAC - 1), (ult) << (G_TEXTURE_IMAGE_FRAC),         \
                    (lrs) << (G_TEXTURE_IMAGE_FRAC - 1), (lrt + TEXTURE_LOAD_FIX) << (G_TEXTURE_IMAGE_FRAC));         \
        gDPPipeSync(pkt);                                                                                             \
        gDPSetTile(pkt, fmt, G_IM_SIZ_4b, (((((lrs) - (uls) + 1) >> 1) + 7) >> 3), 0, G_TX_RENDERTILE, pal, cmt,      \
                   maskt, shiftt, cms, masks, shifts);                                                                \
        gDPSetTileSize(pkt, G_TX_RENDERTILE, (uls) << G_TEXTURE_IMAGE_FRAC, (ult) << G_TEXTURE_IMAGE_FRAC,            \
                       (lrs) << G_TEXTURE_IMAGE_FRAC, (lrt - TEXTURE_SIZE_FIX) << G_TEXTURE_IMAGE_FRAC);              \
    })

#ifdef __cplusplus
}
#endif

#endif // MK64_H