ps2util_surface.c

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#include <stdlib.h>
#include <stdio.h>
#include "libps2.h"
#include "util_hash.h"


#define HASH_SIZE 128


static Util_hash* hash_handler;
static FMATRIX ps2util_unitMatrix = {{1, 0, 0, 0},
                                     {0, 1, 0, 0},
                                     {0, 0, 1, 0},
                                     {0, 0, 0, 1}};

char
ps2util_obj_Init( void ) {

    util_hash_init();
    if (!(hash_handler = util_hash_create( HASH_SIZE ))) {
        fprintf( stderr, "could not create hash object. \n" );
        goto ERR_PS2UTIL_OBJ_INIT;
    }

 ERR_PS2UTIL_OBJ_INIT:
    fprintf( stderr, "ps2util_obj_Init() failed. \n" );
    fflush( stderr );
    return -1;
}


void
ps2util_obj_Finish( void ) {

    util_hash_destroy( hash_handler );
    util_hash_finish();
}


OBJECT*
ps2util_obj_Create_fromXML( char* xml ) {

    OBJECT* obj;
    OBJECT* new_obj;
    void* real_addr;
    void* aligned_addr;

    obj = util_hash_ref_data( hash_handler, xml, UTILHASH_INCREMENT_REFCNT );

    if (!obj) {
        obj = read_xml_3d_file( xml );
        if (!obj) {
            goto ERR_PS2UTIL_OBJ_CREATE_FROMXML;
        }
        util_hash_set_data( hash_handler, xml, obj );
        return obj;
    }
    if (malloc_align16(&real_addr, &aligned_addr, sizeof(OBJECT)) < 0) {
        goto ERR_PS2UTIL_OBJ_CREATE_FROMXML;
    }
    new_obj = aligned_addr;
    new_obj->free_me = real_addr;
    new_obj->surfaces = obj->surfaces;
    new_obj->name = xml;
    return new_obj;

 ERR_PS2UTIL_OBJ_CREATE_FROMXML:

    fprintf( stderr, "\
could not memory allocate. at ps2util_obj_Create_fromXML() in ps2util_surface.c.\n" );
    return NULL;
}


void
ps2util_obj_Free( OBJECT* obj ) {

    OBJECT* ref;
    char* obj_name;

    obj_name = obj->name;

    ref = util_hash_ref_data( hash_handler, obj_name, UTILHASH_DECREMENT_REFCNT );
    if (!ref) return;

    if (util_hash_get_refCounter( hash_handler, obj_name ) < 1) {
        util_hash_remove_data( hash_handler, obj_name );
        free_object( ref );
    }
    free( obj->free_me );
}


void
ps2util_obj_Set_effect( OBJECT* obj, unsigned effect ) {

    SURFACE* srf; /* surface work pointer */
    ps2_giftag* gif; /* GIFtag work pointer */

    const unsigned giftag_mask = 0xffffffA7;
    unsigned new_effect;

    new_effect &= giftag_mask;
    new_effect |= effect;

    /*
      サーフェースは3D オブジェクトの面のことで単方向リスト構造     */

    for (srf = obj->surfaces; srf != NULL; srf=srf->next) {
        gif = &srf->giftag;

        gif->PRIM &= giftag_mask;
        gif->PRIM |= effect;
    }
}



void
ps2util_obj_Set_texture( OBJECT* obj, TEXTURE* tex ) {

    SURFACE* srf;

    for (srf = obj->surfaces; srf != NULL; srf=srf->next) {
        srf->texture = tex;
    }
}



void
ps2util_obj_Renew_transMatrix( OBJECT* obj ) {

    FMATRIX work;

    /* 回転行列を生成 */
    ps2_vu0_rot_matrix( work, ps2util_unitMatrix, obj->angle );

    /* 並行移動行列を生成 */
    ps2_vu0_trans_matrix( work, work, obj->xyz );

    /* 座標変換行列work をobjにコピー */
    ps2_vu0_copy_matrix( obj->transfer, work );
}


inline void
ps2util_obj_Draw( OBJECT* obj ) {

    libps2dy_obj_draw( obj->surfaces, obj->transfer );
}

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