world_sfd.h

   1 /*
   2  * Copyright (C) 2021-2022 Mt.ZERO Software, Harry Godden - All Rights Reserved
   3  */
   4
   5 #ifndef SFD_H
   6 #define SFD_H
   7
   8 #include "world.h"
   9
  10 #include "shaders/scoretext.h"
  11 #include "shaders/vblend.h"
  12
  13 vg_tex2d tex_scoretext = { .path = "textures/scoretext.qoi",
  14                            .flags = VG_TEXTURE_CLAMP|VG_TEXTURE_NEAREST };
  15
  16 /*
  17  * TODO: utf-8 -> ascii
  18  */
  19
  20 float sfd_encode_glyph( char c )
  21 {
  22    int value = 0;
  23    if( c >= 'a' && c <= 'z' )
  24       value = c-'a'+11;
  25    else if( c >= '0' && c <= '9' )
  26       value = c-'0'+1;
  27    else if( c >= 'A' && c <= 'Z' )
  28       value = c-'A'+11;
  29    else if( c >= '\x01' && c <= '\x01'+10 )
  30       value = 63-c;
  31    else
  32    {
  33       int base = 11+26;
  34
  35       switch( c )
  36       {
  37          case '!': value=base+0; break;
  38          case '?': value=base+1; break;
  39          case ',': value=base+2; break;
  40          case '.': value=base+3; break;
  41          case '#': value=base+4; break;
  42          case '$': value=base+5; break;
  43          case '%': value=base+6; break;
  44          case '*': value=base+7; break;
  45          case '+': value=base+8; break;
  46          case '-': value=base+9; break;
  47          case '/': value=base+10; break;
  48          case ':': value=base+11; break;
  49          default: value=0; break;
  50       }
  51    }
  52
  53    return (float)value;
  54 }
  55
  56 VG_STATIC void sfd_encode( u32 row, const char *str )
  57 {
  58    int end=0;
  59    u32 row_h = world.sfd.h -1 -row;
  60
  61    for( int i=0; i<world.sfd.w; i++ )
  62    {
  63       u32 idx = (world.sfd.w*row_h + i) * 2;
  64
  65       if( end )
  66       {
  67          world.sfd.buffer[idx] = 0.0f;
  68       }
  69       else
  70       {
  71          if( !str[i] )
  72             end = 1;
  73
  74          world.sfd.buffer[idx] = sfd_encode_glyph( str[i] );
  75       }
  76    }
  77 }
  78
  79 VG_STATIC void sfd_init( u32 w, u32 h )
  80 {
  81 }
  82
  83 VG_STATIC void sfd_update(void)
  84 {
  85    for( int i=0; i<world.sfd.w*world.sfd.h; i++ )
  86    {
  87       float *target = &world.sfd.buffer[i*2+0],
  88             *cur =    &world.sfd.buffer[i*2+1];
  89
  90       float const rate = vg.time_delta * 15.2313131414f;
  91       float d1 = *target-*cur;
  92
  93       if( fabsf(d1) > rate )
  94       {
  95          *cur += rate;
  96          if( *cur > 60.0f )
  97             *cur -= 60.0f;
  98       }
  99       else
 100          *cur = *target;
 101    }
 102 }
 103
 104 VG_STATIC void bind_terrain_noise(void);
 105 VG_STATIC void sfd_render( m4x4f projection, v3f camera, m4x3f transform )
 106 {
 107    mesh_bind( &world.sfd.mesh_display );
 108
 109    shader_scoretext_use();
 110    shader_scoretext_uTexGarbage(0);
 111    shader_scoretext_uTexGradients(1);
 112    shader_link_standard_ub( _shader_scoretext.id, 2 );
 113    bind_terrain_noise();
 114    vg_tex2d_bind( &tex_scoretext, 1 );
 115
 116    shader_scoretext_uPv( projection );
 117    shader_scoretext_uMdl( transform );
 118    shader_scoretext_uCamera( camera );
 119
 120    for( int y=0;y<world.sfd.h; y++ )
 121    {
 122       for( int x=0; x<world.sfd.w; x++ )
 123       {
 124          float value = world.sfd.buffer[(y*world.sfd.w+x)*2+1];
 125          shader_scoretext_uInfo( (v3f){ x,y, value } );
 126          mesh_draw( &world.sfd.mesh_display );
 127       }
 128    }
 129
 130    shader_vblend_use();
 131    shader_vblend_uTexGarbage(0);
 132    shader_vblend_uTexGradients(1);
 133    shader_link_standard_ub( _shader_vblend.id, 2 );
 134    bind_terrain_noise();
 135    vg_tex2d_bind( &tex_scoretext, 1 );
 136
 137    shader_vblend_uPv( projection );
 138    shader_vblend_uMdl( transform );
 139    shader_vblend_uCamera( camera );
 140
 141    mesh_bind( &world.sfd.mesh_base );
 142    mesh_draw( &world.sfd.mesh_base );
 143 }
 144
 145 VG_STATIC int world_sfd_test( int argc, const char *argv[] )
 146 {
 147    if( argc == 2 )
 148    {
 149       int row = vg_min( vg_max(atoi(argv[0]),0), world.sfd.h);
 150       sfd_encode( row, argv[1] );
 151    }
 152
 153    return 0;
 154 }
 155
 156 VG_STATIC void world_sfd_init(void)
 157 {
 158    vg_info( "world_sfd_init\n" );
 159    shader_scoretext_register();
 160
 161         vg_function_push( (struct vg_cmd){
 162                 .name = "sfd",
 163                 .function = world_sfd_test
 164         });
 165
 166    vg_linear_clear( vg_mem.scratch );
 167    mdl_context *mboard =
 168       mdl_load_full( vg_mem.scratch, "models/rs_scoretext.mdl" );
 169
 170    scene *sc = scene_init( vg_mem.scratch, 3000, 8000 );
 171
 172    mdl_node *pn_backer = mdl_node_from_name( mboard, "backer" );
 173    mdl_submesh *backer = &mboard->submesh_buffer[ pn_backer->submesh_start ];
 174    mdl_node *pn_card = mdl_node_from_name( mboard, "score_card" );
 175    mdl_submesh *card = &mboard->submesh_buffer[ pn_card->submesh_start ];
 176
 177    m4x3f identity;
 178    m4x3_identity( identity );
 179
 180    for( int i=4;i<6;i++ )
 181    {
 182       u32 vert_start = sc->vertex_count;
 183       scene_add_submesh( sc, mboard, card, identity );
 184
 185       for( int j=0; j<card->vertex_count; j++ )
 186       {
 187          mdl_vert *vert = &sc->arrvertices[ vert_start+j ];
 188
 189          float const k_glyph_uvw = 1.0f/64.0f;
 190          vert->uv[0] -= k_glyph_uvw * (float)(i-4);
 191          vert->colour[0] = 0.0f;
 192          vert->colour[1] = i*36;
 193       }
 194    }
 195
 196    vg_acquire_thread_sync();
 197    {
 198       scene_upload( sc, &world.sfd.mesh_display );
 199       mdl_unpack_submesh( mboard, &world.sfd.mesh_base, backer );
 200
 201       vg_tex2d_init( (vg_tex2d *[]){ &tex_scoretext }, 1 );
 202    }
 203    vg_release_thread_sync();
 204
 205    int w = 27,
 206        h = 13;
 207
 208    world.sfd.w = w;
 209    world.sfd.h = h;
 210    world.sfd.buffer = vg_linear_alloc( vg_mem.rtmemory, 2*w*h*sizeof(float) );
 211
 212    for( int i=0; i<w*h*2; i++ )
 213       world.sfd.buffer[i] = 0.0f;
 214 }
 215
 216 #endif /* SFD_H */