world_sfd.h

   1 /*
   2  * Copyright (C) 2021-2023 Mt.ZERO Software, Harry Godden - All Rights Reserved
   3  */
   4
   5 #ifndef SFD_H
   6 #define SFD_H
   7
   8 #include "world.h"
   9 #include "shaders/scene_scoretext.h"
  10 #include "shaders/scene_vertex_blend.h"
  11
  12 vg_tex2d tex_scoretext = { .path = "textures/scoretext.qoi",
  13                            .flags = VG_TEXTURE_CLAMP|VG_TEXTURE_NEAREST };
  14
  15 float sfd_encode_glyph( char c )
  16 {
  17    int value = 0;
  18    if( c >= 'a' && c <= 'z' )
  19       value = c-'a'+11;
  20    else if( c >= '0' && c <= '9' )
  21       value = c-'0'+1;
  22    else if( c >= 'A' && c <= 'Z' )
  23       value = c-'A'+11;
  24    else if( c >= '\x01' && c <= '\x01'+10 )
  25       value = 63-c;
  26    else{
  27       int base = 11+26;
  28
  29       switch( c ){
  30          case '!': value=base+0; break;
  31          case '?': value=base+1; break;
  32          case ',': value=base+2; break;
  33          case '.': value=base+3; break;
  34          case '#': value=base+4; break;
  35          case '$': value=base+5; break;
  36          case '%': value=base+6; break;
  37          case '*': value=base+7; break;
  38          case '+': value=base+8; break;
  39          case '-': value=base+9; break;
  40          case '/': value=base+10; break;
  41          case ':': value=base+11; break;
  42          default: value=0; break;
  43       }
  44    }
  45
  46    return (float)value;
  47 }
  48
  49 VG_STATIC void sfd_encode( u32 row, const char *str )
  50 {
  51    int end=0;
  52    u32 row_h = world_global.sfd.h -1 -row;
  53
  54    for( int i=0; i<world_global.sfd.w; i++ ){
  55       u32 idx = (world_global.sfd.w*row_h + i) * 2;
  56
  57       if( end ){
  58          world_global.sfd.buffer[idx] = 0.0f;
  59       }
  60       else{
  61          if( !str[i] )
  62             end = 1;
  63
  64          world_global.sfd.buffer[idx] = sfd_encode_glyph( str[i] );
  65       }
  66    }
  67 }
  68
  69 VG_STATIC void sfd_update(void)
  70 {
  71    for( int i=0; i<world_global.sfd.w*world_global.sfd.h; i++ ){
  72       float *target = &world_global.sfd.buffer[i*2+0],
  73             *cur =    &world_global.sfd.buffer[i*2+1];
  74
  75       float const rate = vg.time_delta * 15.2313131414f;
  76       float d1 = *target-*cur;
  77
  78       if( fabsf(d1) > rate ){
  79          *cur += rate;
  80          if( *cur > 60.0f )
  81             *cur -= 60.0f;
  82       }
  83       else
  84          *cur = *target;
  85    }
  86 }
  87
  88 VG_STATIC void bind_terrain_noise(void);
  89 VG_STATIC void sfd_render( world_instance *world, camera *cam, m4x3f transform )
  90 {
  91    mesh_bind( &world_global.sfd.mesh_display );
  92    shader_scene_scoretext_use();
  93    shader_scene_scoretext_uTexMain(1);
  94
  95    world_link_lighting_ub( world, _shader_scene_scoretext.id );
  96    world_bind_position_texture( world, _shader_scene_scoretext.id,
  97                         _uniform_scene_scoretext_g_world_depth, 2 );
  98    world_bind_light_array( world, _shader_scene_scoretext.id,
  99                         _uniform_scene_scoretext_uLightsArray, 3 );
 100    world_bind_light_index( world, _shader_scene_scoretext.id,
 101                            _uniform_scene_scoretext_uLightsIndex, 4 );
 102
 103    bind_terrain_noise();
 104    vg_tex2d_bind( &tex_scoretext, 1 );
 105
 106    m4x4f pvm_prev;
 107    m4x3_expand( transform, pvm_prev );
 108    m4x4_mul( cam->mtx_prev.pv, pvm_prev, pvm_prev );
 109
 110    shader_scene_scoretext_uPv( cam->mtx.pv );
 111    shader_scene_scoretext_uPvmPrev( pvm_prev );
 112    shader_scene_scoretext_uMdl( transform );
 113    shader_scene_scoretext_uCamera( cam->transform[3] );
 114
 115    for( int y=0;y<world_global.sfd.h; y++ ){
 116       for( int x=0; x<world_global.sfd.w; x++ ){
 117          float value = world_global.sfd.buffer[(y*world_global.sfd.w+x)*2+1];
 118          shader_scene_scoretext_uInfo( (v3f){ x,y, value } );
 119          mesh_draw( &world_global.sfd.mesh_display );
 120       }
 121    }
 122
 123    shader_scene_vertex_blend_use();
 124    shader_scene_vertex_blend_uTexGarbage(0);
 125    shader_scene_vertex_blend_uTexGradients(1);
 126    world_link_lighting_ub( world, _shader_scene_vertex_blend.id );
 127    world_bind_position_texture( world, _shader_scene_vertex_blend.id,
 128                                 _uniform_scene_vertex_blend_g_world_depth, 2 );
 129    world_bind_light_array( world, _shader_scene_vertex_blend.id,
 130                                 _uniform_scene_vertex_blend_uLightsArray, 3 );
 131    world_bind_light_index( world, _shader_scene_vertex_blend.id,
 132                                 _uniform_scene_vertex_blend_uLightsIndex, 4 );
 133    bind_terrain_noise();
 134    vg_tex2d_bind( &tex_scoretext, 1 );
 135
 136    shader_scene_vertex_blend_uPv( cam->mtx.pv );
 137    shader_scene_vertex_blend_uPvmPrev( pvm_prev );
 138    shader_scene_vertex_blend_uMdl( transform );
 139    shader_scene_vertex_blend_uCamera( cam->transform[3] );
 140
 141    mesh_bind( &world_global.sfd.mesh_base );
 142    mdl_draw_submesh( &world_global.sfd.sm_base );
 143 }
 144
 145 VG_STATIC int world_sfd_test( int argc, const char *argv[] )
 146 {
 147    if( argc == 2 ){
 148       int row = vg_min( vg_max(atoi(argv[0]),0), world_global.sfd.h);
 149       sfd_encode( row, argv[1] );
 150    }
 151
 152    return 0;
 153 }
 154
 155 VG_STATIC void world_sfd_init(void)
 156 {
 157    vg_info( "world_sfd_init\n" );
 158    shader_scene_scoretext_register();
 159
 160         vg_function_push( (struct vg_cmd){
 161                 .name = "sfd",
 162                 .function = world_sfd_test
 163         });
 164
 165    vg_linear_clear( vg_mem.scratch );
 166
 167    mdl_context mscoreboard;
 168    mdl_open( &mscoreboard, "models/rs_scoretext.mdl", vg_mem.scratch );
 169    mdl_load_metadata_block( &mscoreboard, vg_mem.scratch );
 170    mdl_load_mesh_block( &mscoreboard, vg_mem.scratch );
 171
 172    scene *sc = scene_init( vg_mem.scratch, 3000, 8000 );
 173
 174    mdl_mesh *m_backer = mdl_find_mesh( &mscoreboard, "backer" ),
 175             *m_card   = mdl_find_mesh( &mscoreboard, "score_card" );
 176
 177    mdl_submesh
 178       *sm_backer = mdl_arritm( &mscoreboard.submeshs, m_backer->submesh_start ),
 179       *sm_card   = mdl_arritm( &mscoreboard.submeshs, m_card->submesh_start );
 180    world_global.sfd.sm_base = *sm_backer;
 181
 182    mdl_close( &mscoreboard );
 183
 184    m4x3f identity;
 185    m4x3_identity( identity );
 186
 187    for( int i=0;i<4;i++ ){
 188       u32 vert_start = sc->vertex_count;
 189       scene_add_mdl_submesh( sc, &mscoreboard, sm_card, identity );
 190
 191       for( int j=0; j<sm_card->vertex_count; j++ ){
 192          scene_vert *vert = &sc->arrvertices[ vert_start+j ];
 193
 194          float const k_glyph_uvw = 1.0f/64.0f;
 195          vert->uv[0] -= k_glyph_uvw * (float)(i-1);
 196          vert->norm[3] = i*42;
 197       }
 198    }
 199
 200    vg_acquire_thread_sync();
 201    {
 202       scene_upload( sc, &world_global.sfd.mesh_display );
 203       mdl_unpack_glmesh( &mscoreboard, &world_global.sfd.mesh_base );
 204       vg_tex2d_init( (vg_tex2d *[]){ &tex_scoretext }, 1 );
 205    }
 206    vg_release_thread_sync();
 207
 208    int w = 27,
 209        h = 13;
 210
 211    world_global.sfd.w = w;
 212    world_global.sfd.h = h;
 213    world_global.sfd.buffer =
 214          vg_linear_alloc( vg_mem.rtmemory, 2*w*h*sizeof(float) );
 215
 216    for( int i=0; i<w*h*2; i++ )
 217       world_global.sfd.buffer[i] = 0.0f;
 218 }
 219
 220 #endif /* SFD_H */