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       if( end )
  64       {
  65          world.sfd.buffer[world.sfd.w*row_h + i] = 0.0f;
  66       }
  67       else
  68       {
  69          if( !str[i] )
  70             end = 1;
  71
  72          world.sfd.buffer[world.sfd.w*row_h + i] = sfd_encode_glyph( str[i] );
  73       }
  74    }
  75 }
  76
  77 VG_STATIC void sfd_init( u32 w, u32 h )
  78 {
  79 }
  80
  81 VG_STATIC void sfd_update(void)
  82 {
  83    for( int i=0; i<world.sfd.w*world.sfd.h; i++ )
  84    {
  85       float *target = &world.sfd.buffer[i*2+0],
  86             *cur =    &world.sfd.buffer[i*2+1];
  87
  88       float const rate = vg.time_delta * 15.2313131414f;
  89       float d1 = *target-*cur;
  90
  91       if( fabsf(d1) > rate )
  92       {
  93          *cur += rate;
  94          if( *cur > 60.0f )
  95             *cur -= 60.0f;
  96       }
  97       else
  98          *cur = *target;
  99    }
 100 }
 101
 102 VG_STATIC void bind_terrain_noise(void);
 103 VG_STATIC void sfd_render( m4x4f projection, v3f camera, m4x3f transform )
 104 {
 105    mesh_bind( &world.sfd.mesh_display );
 106
 107    shader_scoretext_use();
 108    shader_scoretext_uTexGarbage(0);
 109    shader_scoretext_uTexGradients(1);
 110    shader_link_standard_ub( _shader_scoretext.id, 2 );
 111    bind_terrain_noise();
 112    vg_tex2d_bind( &tex_scoretext, 1 );
 113
 114    shader_scoretext_uPv( projection );
 115    shader_scoretext_uMdl( transform );
 116    shader_scoretext_uCamera( camera );
 117
 118    for( int y=0;y<world.sfd.h; y++ )
 119    {
 120       for( int x=0; x<world.sfd.w; x++ )
 121       {
 122          float value = world.sfd.buffer[(y*world.sfd.w+x)*2+1];
 123          shader_scoretext_uInfo( (v3f){ x,y, value } );
 124          mesh_draw( &world.sfd.mesh_display );
 125       }
 126    }
 127
 128    shader_vblend_use();
 129    shader_vblend_uTexGarbage(0);
 130    shader_vblend_uTexGradients(1);
 131    shader_link_standard_ub( _shader_vblend.id, 2 );
 132    bind_terrain_noise();
 133    vg_tex2d_bind( &tex_scoretext, 1 );
 134
 135    shader_vblend_uPv( projection );
 136    shader_vblend_uMdl( transform );
 137    shader_vblend_uCamera( camera );
 138
 139    mesh_bind( &world.sfd.mesh_base );
 140    mesh_draw( &world.sfd.mesh_base );
 141 }
 142
 143 VG_STATIC int world_sfd_test( int argc, const char *argv[] )
 144 {
 145    if( argc == 2 )
 146    {
 147       int row = vg_min( vg_max(atoi(argv[0]),0), world.sfd.h);
 148       sfd_encode( row, argv[1] );
 149    }
 150
 151    return 0;
 152 }
 153
 154 VG_STATIC void world_sfd_init(void)
 155 {
 156    vg_info( "world_sfd_init\n" );
 157    shader_scoretext_register();
 158
 159         vg_function_push( (struct vg_cmd){
 160                 .name = "sfd",
 161                 .function = world_sfd_test
 162         });
 163
 164    vg_linear_clear( vg_mem.scratch );
 165    mdl_context *mboard =
 166       mdl_load_full( vg_mem.scratch, "models/rs_scoretext.mdl" );
 167
 168    scene *sc = scene_init( vg_mem.scratch, 3000, 8000 );
 169
 170    mdl_node *pn_backer = mdl_node_from_name( mboard, "backer" );
 171    mdl_submesh *backer = &mboard->submesh_buffer[ pn_backer->submesh_start ];
 172    mdl_node *pn_card = mdl_node_from_name( mboard, "score_card" );
 173    mdl_submesh *card = &mboard->submesh_buffer[ pn_card->submesh_start ];
 174
 175    m4x3f identity;
 176    m4x3_identity( identity );
 177
 178    for( int i=4;i<6;i++ )
 179    {
 180       u32 vert_start = sc->vertex_count;
 181       scene_add_submesh( sc, mboard, card, identity );
 182
 183       for( int j=0; j<card->vertex_count; j++ )
 184       {
 185          mdl_vert *vert = &sc->arrvertices[ vert_start+j ];
 186
 187          float const k_glyph_uvw = 1.0f/64.0f;
 188          vert->uv[0] -= k_glyph_uvw * (float)(i-4);
 189          vert->colour[0] = 0.0f;
 190          vert->colour[1] = i*36;
 191       }
 192    }
 193
 194    vg_acquire_thread_sync();
 195    {
 196       scene_upload( sc, &world.sfd.mesh_display );
 197       mdl_unpack_submesh( mboard, &world.sfd.mesh_base, backer );
 198
 199       vg_tex2d_init( (vg_tex2d *[]){ &tex_scoretext }, 1 );
 200    }
 201    vg_release_thread_sync();
 202
 203    int w = 27,
 204        h = 13;
 205
 206    world.sfd.w = w;
 207    world.sfd.h = h;
 208    world.sfd.buffer = vg_linear_alloc( vg_mem.rtmemory, 2*w*h*sizeof(float) );
 209
 210    for( int i=0; i<w*h*2; i++ )
 211       world.sfd.buffer[i] = 0.0f;
 212 }
 213
 214 #endif /* SFD_H */