model.h

   1 /*
   2  * Copyright (C) 2021-2023 Mt.ZERO Software, Harry Godden - All Rights Reserved
   3  */
   4
   5 #ifndef MODEL_H
   6 #define MODEL_H
   7
   8 #include "skaterift.h"
   9
  10 #define MDL_VERSION_MIN 101
  11 #define MDL_VERSION_NR 104
  12
  13 enum mdl_shader{
  14    k_shader_standard                = 0,
  15    k_shader_standard_cutout         = 1,
  16    k_shader_terrain_blend           = 2,
  17    k_shader_standard_vertex_blend   = 3,
  18    k_shader_water                   = 4,
  19    k_shader_invisible               = 5,
  20    k_shader_boundary                = 6,
  21    k_shader_fxglow                  = 7,
  22    k_shader_cubemap                 = 8,
  23    k_shader_override                = 30000
  24 };
  25
  26 enum mdl_surface_prop{
  27    k_surface_prop_concrete          = 0,
  28    k_surface_prop_wood              = 1,
  29    k_surface_prop_grass             = 2,
  30    k_surface_prop_tiles             = 3,
  31    k_surface_prop_metal             = 4
  32 };
  33
  34 enum material_flag{
  35    k_material_flag_skate_target     = 0x0001,
  36    k_material_flag_collision        = 0x0002,
  37    k_material_flag_grow_grass       = 0x0004,
  38    k_material_flag_grindable        = 0x0008,
  39    k_material_flag_invisible        = 0x0010,
  40    k_material_flag_boundary         = 0x0020,
  41    k_material_flag_preview_visibile = 0x0040,
  42    k_material_flag_walking          = 0x0080,
  43
  44    k_material_flag_ghosts      =
  45       k_material_flag_boundary|
  46       k_material_flag_invisible|
  47       k_material_flag_walking
  48 };
  49
  50 #pragma pack(push,1)
  51
  52 /* 48 byte */
  53 struct mdl_vert
  54 {
  55    v3f co,        /* 3*32 */
  56        norm;      /* 3*32 */
  57    v2f uv;        /* 2*32 */
  58
  59    u8  colour[4]; /* 4*8 */
  60    u16 weights[4];/* 4*16 */
  61    u8  groups[4]; /* 4*8 */
  62 };
  63
  64 #pragma pack(pop)
  65
  66 typedef u32 mdl_indice;
  67
  68 typedef struct mdl_context mdl_context;
  69 typedef struct mdl_array_ptr mdl_array_ptr;
  70 typedef struct mdl_vert mdl_vert;
  71 typedef struct mdl_transform mdl_transform;
  72 typedef struct mdl_submesh mdl_submesh;
  73 typedef struct mdl_material mdl_material;
  74 typedef struct mdl_bone mdl_bone;
  75 typedef struct mdl_armature mdl_armature;
  76 typedef struct mdl_animation mdl_animation;
  77 typedef struct mdl_transform mdl_keyframe;
  78 typedef struct mdl_mesh mdl_mesh;
  79 typedef struct mdl_file mdl_file;
  80 typedef struct mdl_texture mdl_texture;
  81 typedef struct mdl_array mdl_array;
  82 typedef struct mdl_header mdl_header;
  83
  84 typedef struct glmesh glmesh;
  85 struct glmesh
  86 {
  87    GLuint vao, vbo, ebo;
  88    u32 indice_count;
  89    u32 loaded;
  90 };
  91
  92 struct mdl_transform
  93 {
  94    v3f co, s;
  95    v4f q;
  96 };
  97
  98 static void transform_identity( mdl_transform *transform )
  99 {
 100    v3_zero( transform->co );
 101    q_identity( transform->q );
 102    v3_fill( transform->s, 1.0f );
 103 }
 104
 105 static void mdl_transform_vector( mdl_transform *transform, v3f vec, v3f dest )
 106 {
 107    v3_mul( transform->s, vec, dest );
 108    q_mulv( transform->q, dest, dest );
 109 }
 110
 111 static void mdl_transform_point( mdl_transform *transform, v3f co, v3f dest )
 112 {
 113    mdl_transform_vector( transform, co, dest );
 114    v3_add( transform->co, dest, dest );
 115 }
 116
 117 static void mdl_transform_mul( mdl_transform *a, mdl_transform *b,
 118                                mdl_transform *d )
 119 {
 120    mdl_transform_point( a, b->co, d->co );
 121    q_mul( a->q, b->q, d->q );
 122    q_normalize( d->q );
 123    v3_mul( a->s, b->s, d->s );
 124 }
 125
 126 struct mdl_material
 127 {
 128    u32 pstr_name,
 129        shader,
 130        flags,
 131        surface_prop;
 132
 133    v4f colour,
 134        colour1;
 135
 136    u32 tex_diffuse,
 137        tex_none0,
 138        tex_none1;
 139 };
 140
 141 struct mdl_bone
 142 {
 143    v3f co, end;
 144    u32 parent,
 145        collider,
 146        ik_target,
 147        ik_pole,
 148        flags,
 149        pstr_name;
 150
 151    boxf hitbox;
 152    v3f conevx, conevy, coneva;
 153    float conet;
 154 };
 155
 156 enum bone_flag
 157 {
 158    k_bone_flag_deform               = 0x00000001,
 159    k_bone_flag_ik                   = 0x00000002,
 160    k_bone_flag_cone_constraint      = 0x00000004
 161 };
 162
 163 enum bone_collider
 164 {
 165    k_bone_collider_none = 0,
 166    k_bone_collider_box = 1,
 167    k_bone_collider_capsule = 2
 168 };
 169
 170 struct mdl_armature
 171 {
 172    mdl_transform transform;
 173    u32 bone_start,
 174        bone_count,
 175        anim_start,
 176        anim_count;
 177 };
 178
 179 struct mdl_animation
 180 {
 181    u32 pstr_name,
 182        length;
 183    float rate;
 184    u32 offset;
 185 };
 186
 187 struct mdl_submesh
 188 {
 189    u32 indice_start,
 190        indice_count,
 191        vertex_start,
 192        vertex_count;
 193
 194    boxf bbx;
 195    u16 material_id, flags;
 196 };
 197
 198 enum esubmesh_flags
 199 {
 200    k_submesh_flag_none     = 0x0000,
 201    k_submesh_flag_consumed = 0x0001
 202 };
 203
 204 struct mdl_mesh
 205 {
 206    mdl_transform transform;
 207    u32 submesh_start,
 208        submesh_count,
 209        pstr_name,
 210        entity_id,    /* upper 16 bits: type, lower 16 bits: index */
 211        armature_id;
 212 };
 213
 214 struct mdl_file
 215 {
 216    u32 pstr_path,
 217        pack_offset,
 218        pack_size;
 219 };
 220
 221 struct mdl_texture
 222 {
 223    mdl_file file;
 224    u32 glname;
 225 };
 226
 227 struct mdl_array
 228 {
 229    u32 file_offset,
 230        item_count,
 231        item_size;
 232
 233    char name[16];
 234 };
 235
 236 struct mdl_header
 237 {
 238    u32 version;
 239    mdl_array index;
 240 };
 241
 242 struct mdl_context{
 243    FILE *file;
 244    mdl_header info;
 245
 246    struct mdl_array_ptr{
 247       void *data;
 248       u32 count, stride;
 249    }
 250    index,
 251
 252    /* metadata */
 253    strings,
 254    meshs,
 255    submeshs,
 256    materials,
 257    textures,
 258    armatures,
 259    bones,
 260    animations,
 261
 262    /* animation buffers */
 263    keyframes,
 264
 265    /* mesh buffers */
 266    verts,
 267    indices;
 268    u32 pack_base_offset;
 269
 270    /* runtime */
 271    glmesh mesh;
 272 };
 273
 274
 275 static void mdl_load_fatal_corrupt( mdl_context *mdl )
 276 {
 277    fclose( mdl->file );
 278    vg_file_print_invalid( mdl->file );
 279    vg_fatal_error( "Corrupt model" );
 280 }
 281
 282 /*
 283  * Model implementation
 284  */
 285
 286 static const char *mdl_pstr( mdl_context *mdl, u32 pstr );
 287 static
 288 void mdl_fread_pack_file( mdl_context *mdl, mdl_file *info, void *dst )
 289 {
 290    if( !info->pack_size ){
 291       vg_warn( "path: %s\n", mdl_pstr( mdl, info->pstr_path ) );
 292       vg_fatal_error( "Packed file is only a header; it is not packed" );
 293    }
 294
 295    fseek( mdl->file, mdl->pack_base_offset+info->pack_offset, SEEK_SET );
 296    u64 l = fread( dst, info->pack_size, 1, mdl->file );
 297
 298    if( l != 1 ) mdl_load_fatal_corrupt( mdl );
 299 }
 300
 301 /* TODO: Rename these */
 302 static void mdl_load_array_file_buffer( mdl_context *mdl, mdl_array *arr,
 303                                         void *buffer, u32 stride )
 304 {
 305    if( arr->item_count ){
 306       fseek( mdl->file, arr->file_offset, SEEK_SET );
 307
 308       if( stride == arr->item_size ){
 309          u64 l = fread( buffer, arr->item_size*arr->item_count, 1, mdl->file );
 310          if( l != 1 ) mdl_load_fatal_corrupt( mdl );
 311       }
 312       else {
 313          vg_warn( "Applying alignment fixup to array @%p [%u -> %u] x %u\n",
 314                   buffer, arr->item_size, stride, arr->item_count );
 315          if( stride < arr->item_size )
 316             vg_fatal_error( "not safe\n" );
 317
 318          for( u32 i=0; i<arr->item_count; i++ ){
 319             u64 l = fread( buffer+i*stride, arr->item_size, 1, mdl->file );
 320             if( l != 1 ) mdl_load_fatal_corrupt( mdl );
 321          }
 322       }
 323    }
 324 }
 325
 326 static void mdl_load_array_file( mdl_context *mdl, mdl_array_ptr *ptr,
 327                                  mdl_array *arr, void *lin_alloc, u32 stride )
 328 {
 329    if( stride < arr->item_size ){
 330       vg_error( "Structure max: %u. Got: %u\n", stride, arr->item_size );
 331       vg_fatal_error( "not safe\n" );
 332    }
 333
 334    if( arr->item_count ){
 335       u32 size = stride*arr->item_count;
 336       ptr->data = vg_linear_alloc( lin_alloc, vg_align8(size) );
 337       mdl_load_array_file_buffer( mdl, arr, ptr->data, stride );
 338    }
 339    else{
 340       ptr->data = NULL;
 341    }
 342
 343    ptr->stride = stride;
 344    ptr->count = arr->item_count;
 345 }
 346
 347 static void *mdl_arritm( mdl_array_ptr *arr, u32 index )
 348 {
 349    return ((u8 *)arr->data) + index*arr->stride;
 350 }
 351
 352 static u32 mdl_arrcount( mdl_array_ptr *arr )
 353 {
 354    return arr->count;
 355 }
 356
 357 static mdl_array *mdl_find_array( mdl_context *mdl, const char *name )
 358 {
 359    for( u32 i=0; i<mdl_arrcount(&mdl->index); i++ ){
 360       mdl_array *arr = mdl_arritm( &mdl->index, i );
 361
 362       if( !strncmp(arr->name,name,16) ){
 363          return arr;
 364       }
 365    }
 366
 367    return NULL;
 368 }
 369
 370 static int _mdl_load_array( mdl_context *mdl, mdl_array_ptr *ptr,
 371                             const char *name, void *lin_alloc, u32 stride )
 372 {
 373    mdl_array *arr = mdl_find_array( mdl, name );
 374
 375    if( arr ){
 376       mdl_load_array_file( mdl, ptr, arr, lin_alloc, stride );
 377       return 1;
 378    }
 379    else{
 380       ptr->data = NULL;
 381       ptr->count = 0;
 382       ptr->stride = 0;
 383       return 0;
 384    }
 385 }
 386
 387 #define MDL_LOAD_ARRAY( MDL, PTR, STRUCT, ALLOCATOR ) \
 388    _mdl_load_array( MDL, PTR, #STRUCT, ALLOCATOR, sizeof(STRUCT) )
 389
 390 static int mdl_load_mesh_block( mdl_context *mdl, void *lin_alloc ){
 391    int success = 1;
 392
 393    success &= MDL_LOAD_ARRAY( mdl, &mdl->verts,    mdl_vert,   lin_alloc );
 394    success &= MDL_LOAD_ARRAY( mdl, &mdl->indices,  mdl_indice, lin_alloc );
 395
 396    return success;
 397 }
 398
 399 static int mdl_load_metadata_block( mdl_context *mdl, void *lin_alloc ){
 400    int success = 1;
 401
 402    success &= _mdl_load_array( mdl, &mdl->strings, "strings", lin_alloc, 1 );
 403    success &= MDL_LOAD_ARRAY( mdl, &mdl->meshs,     mdl_mesh,     lin_alloc );
 404    success &= MDL_LOAD_ARRAY( mdl, &mdl->submeshs,  mdl_submesh,  lin_alloc );
 405    success &= MDL_LOAD_ARRAY( mdl, &mdl->materials, mdl_material, lin_alloc );
 406    success &= MDL_LOAD_ARRAY( mdl, &mdl->textures,  mdl_texture,  lin_alloc );
 407    success &= MDL_LOAD_ARRAY( mdl, &mdl->armatures, mdl_armature, lin_alloc );
 408    success &= MDL_LOAD_ARRAY( mdl, &mdl->bones,     mdl_bone,     lin_alloc );
 409    success &= MDL_LOAD_ARRAY( mdl, &mdl->animations,mdl_animation,lin_alloc );
 410
 411    return success;
 412 }
 413
 414 static int mdl_load_animation_block( mdl_context *mdl, void *lin_alloc ){
 415    return MDL_LOAD_ARRAY( mdl, &mdl->keyframes, mdl_keyframe, lin_alloc );
 416 }
 417
 418 /*
 419  * if calling mdl_open, and the file does not exist, the game will fatal quit
 420  */
 421 static void mdl_open( mdl_context *mdl, const char *path, void *lin_alloc )
 422 {
 423    memset( mdl, 0, sizeof( mdl_context ) );
 424    mdl->file = fopen( path, "rb" );
 425
 426    if( !mdl->file ){
 427       vg_error( "mdl_open('%s'): %s\n", path, strerror(errno) );
 428       vg_fatal_error( "see above for details" );
 429    }
 430
 431    u64 l = fread( &mdl->info, sizeof(mdl_header), 1, mdl->file );
 432    if( l != 1 )
 433       mdl_load_fatal_corrupt( mdl );
 434
 435    if( mdl->info.version < MDL_VERSION_MIN ){
 436       vg_warn( "For model: %s\n", path );
 437       vg_warn( "  version: %u (min: %u, current: %u)\n",
 438                mdl->info.version, MDL_VERSION_MIN, MDL_VERSION_NR );
 439
 440       vg_fatal_error( "Legacy model version incompatable" );
 441    }
 442
 443    mdl_load_array_file( mdl, &mdl->index, &mdl->info.index, lin_alloc,
 444                         sizeof(mdl_array) );
 445
 446    mdl_array *pack = mdl_find_array( mdl, "pack" );
 447    if( pack ) mdl->pack_base_offset = pack->file_offset;
 448    else mdl->pack_base_offset = 0;
 449 }
 450
 451 /*
 452  * close file handle
 453  */
 454 static void mdl_close( mdl_context *mdl )
 455 {
 456    fclose( mdl->file );
 457    mdl->file = NULL;
 458 }
 459
 460 /* useful things you can do with the model */
 461
 462 static void mdl_transform_m4x3( mdl_transform *transform, m4x3f mtx )
 463 {
 464    q_m3x3( transform->q, mtx );
 465    v3_muls( mtx[0], transform->s[0], mtx[0] );
 466    v3_muls( mtx[1], transform->s[1], mtx[1] );
 467    v3_muls( mtx[2], transform->s[2], mtx[2] );
 468    v3_copy( transform->co, mtx[3] );
 469 }
 470
 471 static const char *mdl_pstr( mdl_context *mdl, u32 pstr )
 472 {
 473    return ((char *)mdl_arritm( &mdl->strings, pstr )) + 4;
 474 }
 475
 476
 477 static int
 478 mdl_pstreq( mdl_context *mdl, u32 pstr, const char *str, u32 djb2 )
 479 {
 480    u32 hash = *((u32 *)mdl_arritm( &mdl->strings, pstr ));
 481    if( hash == djb2 ){
 482       if( !strcmp( str, mdl_pstr( mdl, pstr ))) return 1;
 483       else return 0;
 484    }
 485    else return 0;
 486 }
 487
 488 #define MDL_CONST_PSTREQ( MDL, Q, CONSTSTR )\
 489    mdl_pstreq( MDL, Q, CONSTSTR, vg_strdjb2( CONSTSTR ) )
 490
 491 /*
 492  * Simple mesh interface for OpenGL
 493  * ----------------------------------------------------------------------------
 494  */
 495
 496 static void mesh_upload( glmesh *mesh,
 497                             mdl_vert *verts, u32 vert_count,
 498                             u32 *indices, u32 indice_count )
 499 {
 500    //assert( mesh->loaded == 0 );
 501
 502    glGenVertexArrays( 1, &mesh->vao );
 503    glGenBuffers( 1, &mesh->vbo );
 504    glGenBuffers( 1, &mesh->ebo );
 505    glBindVertexArray( mesh->vao );
 506
 507    size_t stride = sizeof(mdl_vert);
 508
 509    glBindBuffer( GL_ARRAY_BUFFER, mesh->vbo );
 510    glBufferData( GL_ARRAY_BUFFER, vert_count*stride, verts, GL_STATIC_DRAW );
 511
 512    glBindVertexArray( mesh->vao );
 513    glBindBuffer( GL_ELEMENT_ARRAY_BUFFER, mesh->ebo );
 514    glBufferData( GL_ELEMENT_ARRAY_BUFFER, indice_count*sizeof(u32),
 515          indices, GL_STATIC_DRAW );
 516
 517    /* 0: coordinates */
 518    glVertexAttribPointer( 0, 3, GL_FLOAT, GL_FALSE, stride, (void*)0 );
 519    glEnableVertexAttribArray( 0 );
 520
 521    /* 1: normal */
 522    glVertexAttribPointer( 1, 3, GL_FLOAT, GL_FALSE,
 523          stride, (void *)offsetof(mdl_vert, norm) );
 524    glEnableVertexAttribArray( 1 );
 525
 526    /* 2: uv */
 527    glVertexAttribPointer( 2, 2, GL_FLOAT, GL_FALSE,
 528          stride, (void *)offsetof(mdl_vert, uv) );
 529    glEnableVertexAttribArray( 2 );
 530
 531    /* 3: colour */
 532    glVertexAttribPointer( 3, 4, GL_UNSIGNED_BYTE, GL_TRUE,
 533          stride, (void *)offsetof(mdl_vert, colour) );
 534    glEnableVertexAttribArray( 3 );
 535
 536    /* 4: weights */
 537    glVertexAttribPointer( 4, 4, GL_UNSIGNED_SHORT, GL_TRUE,
 538          stride, (void *)offsetof(mdl_vert, weights) );
 539    glEnableVertexAttribArray( 4 );
 540
 541    /* 5: groups */
 542    glVertexAttribIPointer( 5, 4, GL_UNSIGNED_BYTE,
 543          stride, (void *)offsetof(mdl_vert, groups) );
 544    glEnableVertexAttribArray( 5 );
 545
 546    VG_CHECK_GL_ERR();
 547
 548    mesh->indice_count = indice_count;
 549    mesh->loaded = 1;
 550 }
 551
 552 static void mesh_bind( glmesh *mesh )
 553 {
 554    glBindVertexArray( mesh->vao );
 555 }
 556
 557 static void mesh_drawn( u32 start, u32 count )
 558 {
 559    glDrawElements( GL_TRIANGLES, count, GL_UNSIGNED_INT,
 560          (void *)(start*sizeof(u32)) );
 561 }
 562
 563 static void mesh_draw( glmesh *mesh )
 564 {
 565    mesh_drawn( 0, mesh->indice_count );
 566 }
 567
 568 static void mesh_free( glmesh *mesh )
 569 {
 570    if( mesh->loaded ){
 571       glDeleteVertexArrays( 1, &mesh->vao );
 572       glDeleteBuffers( 1, &mesh->ebo );
 573       glDeleteBuffers( 1, &mesh->vbo );
 574       mesh->loaded = 0;
 575    }
 576 }
 577
 578 static void mdl_draw_submesh( mdl_submesh *sm )
 579 {
 580    mesh_drawn( sm->indice_start, sm->indice_count );
 581 }
 582
 583 static mdl_mesh *mdl_find_mesh( mdl_context *mdl, const char *name )
 584 {
 585    for( u32 i=0; i<mdl_arrcount( &mdl->meshs ); i++ ){
 586       mdl_mesh *mesh = mdl_arritm( &mdl->meshs, i );
 587       if( !strcmp( name, mdl_pstr( mdl, mesh->pstr_name ))){
 588          return mesh;
 589       }
 590    }
 591    return NULL;
 592 }
 593
 594 struct payload_glmesh_load{
 595    mdl_vert *verts;
 596    u32 *indices;
 597
 598    u32 vertex_count,
 599        indice_count;
 600
 601    glmesh *mesh;
 602 };
 603
 604 static void async_mdl_load_glmesh( void *payload, u32 size )
 605 {
 606    struct payload_glmesh_load *job = payload;
 607    mesh_upload( job->mesh, job->verts, job->vertex_count,
 608                            job->indices, job->indice_count );
 609 }
 610
 611 static void mdl_async_load_glmesh( mdl_context *mdl, glmesh *mesh,
 612                                    u32 *fixup_table ){
 613    mdl_array *arr_vertices = mdl_find_array( mdl, "mdl_vert" );
 614    mdl_array *arr_indices = mdl_find_array( mdl, "mdl_indice" );
 615
 616    if( arr_vertices && arr_indices ){
 617       u32 size_verts   = vg_align8(sizeof(mdl_vert)*arr_vertices->item_count),
 618           size_indices = vg_align8(sizeof(mdl_indice)*arr_indices->item_count),
 619           size_hdr     = vg_align8(sizeof(struct payload_glmesh_load)),
 620           total        = size_hdr + size_verts + size_indices;
 621
 622       vg_async_item *call = vg_async_alloc( total );
 623       struct payload_glmesh_load *job = call->payload;
 624
 625       u8 *payload = call->payload;
 626
 627       job->mesh = mesh;
 628       job->verts = (void*)(payload + size_hdr);
 629       job->indices = (void*)(payload + size_hdr + size_verts);
 630       job->vertex_count = arr_vertices->item_count;
 631       job->indice_count = arr_indices->item_count;
 632
 633       mdl_load_array_file_buffer( mdl, arr_vertices,
 634                                   job->verts, sizeof(mdl_vert) );
 635       mdl_load_array_file_buffer( mdl, arr_indices, job->indices,
 636                                   sizeof(mdl_indice) );
 637
 638       if( fixup_table ){
 639          for( u32 i=0; i<job->vertex_count; i ++ ){
 640             mdl_vert *vert = &job->verts[i];
 641
 642             for( u32 j=0; j<4; j++ ){
 643                vert->groups[j] = fixup_table[vert->groups[j]];
 644             }
 645          }
 646       }
 647
 648       /*
 649        * Unpack the indices (if there are meshes)
 650        * ---------------------------------------------------------
 651        */
 652
 653       if( mdl_arrcount( &mdl->submeshs ) ){
 654          mdl_submesh *sm = mdl_arritm( &mdl->submeshs, 0 );
 655          u32 offset = sm->vertex_count;
 656
 657          for( u32 i=1; i<mdl_arrcount( &mdl->submeshs ); i++ ){
 658             mdl_submesh *sm = mdl_arritm( &mdl->submeshs, i );
 659             u32 *indices    = job->indices + sm->indice_start;
 660
 661             for( u32 j=0; j<sm->indice_count; j++ )
 662                indices[j] += offset;
 663
 664             offset += sm->vertex_count;
 665          }
 666       }
 667
 668       /*
 669        * Dispatch
 670        * -------------------------
 671        */
 672
 673       vg_async_dispatch( call, async_mdl_load_glmesh );
 674    }
 675    else{
 676       vg_fatal_error( "no vertex/indice data\n" );
 677    }
 678 }
 679
 680 /* uploads the glmesh, and textures. everything is saved into the mdl_context */
 681 static void mdl_async_full_load_std( mdl_context *mdl ){
 682    mdl_async_load_glmesh( mdl, &mdl->mesh, NULL );
 683
 684    for( u32 i=0; i<mdl_arrcount( &mdl->textures ); i ++ ){
 685       vg_linear_clear( vg_mem.scratch );
 686       mdl_texture *tex = mdl_arritm( &mdl->textures, i );
 687
 688       void *data = vg_linear_alloc( vg_mem.scratch, tex->file.pack_size );
 689       mdl_fread_pack_file( mdl, &tex->file, data );
 690
 691       vg_tex2d_load_qoi_async( data, tex->file.pack_size,
 692                                VG_TEX2D_CLAMP|VG_TEX2D_NEAREST, &tex->glname );
 693    }
 694 }
 695
 696 #endif