world_sfd.h

   1 #ifndef SFD_H
   2 #define SFD_H
   3
   4 #include "common.h"
   5 #include "model.h"
   6 #include "world.h"
   7
   8 #include "shaders/scoretext.h"
   9 #include "shaders/vblend.h"
  10
  11 vg_tex2d tex_scoretext = { .path = "textures/scoretext.qoi",
  12                            .flags = VG_TEXTURE_CLAMP|VG_TEXTURE_NEAREST };
  13
  14 struct sfd_instance
  15 {
  16    float *buffer;
  17
  18    u32 w,h;
  19 };
  20
  21
  22 struct subworld_sfd
  23 {
  24    scene mesh;
  25    mdl_submesh *sm_module, *sm_card;
  26    glmesh temp;
  27
  28    struct sfd_instance tester;
  29 };
  30
  31 static struct subworld_sfd *subworld_sfd(void);
  32
  33
  34 float sfd_encode_glyph( char c )
  35 {
  36    int value = 0;
  37    if( c >= 'a' && c <= 'z' )
  38       value = c-'a'+11;
  39    else if( c >= '0' && c <= '9' )
  40       value = c-'0'+1;
  41    else if( c >= 'A' && c <= 'Z' )
  42       value = c-'A'+11;
  43    else if( c >= '\x01' && c <= '\x01'+10 )
  44       value = 63-c;
  45    else
  46    {
  47       int base = 11+26;
  48
  49       switch( c )
  50       {
  51          case '!': value=base+0; break;
  52          case '?': value=base+1; break;
  53          case ',': value=base+2; break;
  54          case '.': value=base+3; break;
  55          case '#': value=base+4; break;
  56          case '$': value=base+5; break;
  57          case '%': value=base+6; break;
  58          case '*': value=base+7; break;
  59          case '+': value=base+8; break;
  60          case '-': value=base+9; break;
  61          case '/': value=base+10; break;
  62          case ':': value=base+11; break;
  63          default: value=0; break;
  64       }
  65    }
  66
  67    return (float)value;
  68 }
  69
  70 static void sfd_encode( struct sfd_instance *display, u32 row, const char *str )
  71 {
  72    int end=0;
  73    for( int i=0; i<display->w; i++ )
  74    {
  75       if( end )
  76       {
  77          display->buffer[display->w*row + i] = 0.0f;
  78       }
  79       else
  80       {
  81          if( !str[i] )
  82             end = 1;
  83
  84          display->buffer[display->w*row + i] = sfd_encode_glyph( str[i] );
  85       }
  86    }
  87 }
  88
  89 static void sfd_new( struct sfd_instance *display, u32 w, u32 h )
  90 {
  91    display->w = w;
  92    display->h = h;
  93    display->buffer = malloc( w*h*sizeof(float)*2 );
  94
  95    for( int i=0; i<w*h*2; i++ )
  96       display->buffer[i] = 0.0f;
  97 }
  98
  99 static void sfd_update( struct sfd_instance *display )
 100 {
 101    for( int i=0; i<display->w*display->h; i++ )
 102    {
 103       float *target = &display->buffer[i],
 104             *cur = target+display->w*display->h;
 105
 106       float const rate = ktimestep*15.2313131414f;
 107       float d1 = *target-*cur;
 108
 109       if( fabsf(d1) > rate )
 110       {
 111          *cur += rate;
 112          if( *cur > 60.0f )
 113             *cur -= 60.0f;
 114       }
 115       else
 116          *cur = *target;
 117    }
 118 }
 119
 120 static void sfd_render( struct sfd_instance *display,
 121                         m4x4f projection, v3f camera, m4x3f transform )
 122 {
 123    struct subworld_sfd *sfd = subworld_sfd();
 124    scene_bind( &sfd->mesh );
 125
 126    shader_scoretext_use();
 127    shader_scoretext_uTexGarbage(0);
 128    shader_scoretext_uTexGradients(1);
 129    shader_link_standard_ub( _shader_scoretext.id, 2 );
 130    bind_terrain_textures();
 131    vg_tex2d_bind( &tex_scoretext, 1 );
 132
 133    shader_scoretext_uPv( projection );
 134    shader_scoretext_uMdl( transform );
 135    shader_scoretext_uCamera( camera );
 136
 137    for( int y=0;y<display->h; y++ )
 138    {
 139       for( int x=0; x<display->w; x++ )
 140       {
 141          float value = display->buffer[display->h*display->w+y*display->w+x];
 142          shader_scoretext_uInfo( (v3f){ x,y, value } );
 143          scene_draw( &sfd->mesh );
 144       }
 145    }
 146
 147    shader_vblend_use();
 148    shader_vblend_uTexGarbage(0);
 149    shader_vblend_uTexGradients(1);
 150    shader_link_standard_ub( _shader_vblend.id, 2 );
 151    bind_terrain_textures();
 152
 153    shader_vblend_uPv( projection );
 154    shader_vblend_uMdl( transform );
 155    shader_vblend_uCamera( camera );
 156
 157    mesh_bind( &sfd->temp );
 158    mesh_draw( &sfd->temp );
 159 }
 160
 161 static int world_sfd_test( int argc, const char *argv[] )
 162 {
 163    struct subworld_sfd *sfd = subworld_sfd();
 164
 165    if( argc == 2 )
 166    {
 167       int row = vg_min(vg_max(atoi(argv[0]),0),sfd->tester.h);
 168       sfd_encode( &sfd->tester, row, argv[1] );
 169    }
 170
 171    return 0;
 172 }
 173
 174 static void world_sfd_init(void)
 175 {
 176    struct subworld_sfd *sfd = subworld_sfd();
 177
 178         vg_function_push( (struct vg_cmd){
 179                 .name = "sfd",
 180                 .function = world_sfd_test
 181         });
 182
 183    mdl_header *mboard = mdl_load( "models/rs_scoretext.mdl" );
 184
 185    scene_init( &sfd->mesh );
 186
 187    mdl_node *pn_card = mdl_node_from_name( mboard, "score_card" );
 188    mdl_submesh *card = mdl_submesh_from_id( mboard, pn_card->submesh_start );
 189
 190    mdl_node *pn_backer = mdl_node_from_name( mboard, "backer" );
 191    mdl_submesh *backer = mdl_submesh_from_id( mboard, pn_backer->submesh_start);
 192    mdl_unpack_submesh( mboard, &sfd->temp, backer );
 193
 194    m4x3f identity;
 195    m4x3_identity( identity );
 196
 197    for( int i=0;i<8;i++ )
 198    {
 199       u32 vert_start = sfd->mesh.vertex_count;
 200       scene_add_submesh( &sfd->mesh, mboard, card, identity );
 201
 202       for( int j=0; j<card->vertex_count; j++ )
 203       {
 204          mdl_vert *vert = &sfd->mesh.verts[ vert_start+j ];
 205
 206          float const k_glyph_uvw = 1.0f/64.0f;
 207          vert->uv[0] -= k_glyph_uvw * (float)(i-4);
 208          vert->colour[0] = 0.0f;
 209          vert->colour[1] = i*36;
 210       }
 211    }
 212
 213    scene_upload( &sfd->mesh );
 214    scene_free_offline_buffers( &sfd->mesh );
 215
 216    free( mboard );
 217    vg_tex2d_init( (vg_tex2d *[]){ &tex_scoretext }, 1 );
 218
 219    sfd_new( &sfd->tester, 16, 8 );
 220 }
 221
 222 static void world_sfd_register(void)
 223 {
 224    shader_scoretext_register();
 225 }
 226
 227 static void world_sfd_free(void)
 228 {
 229    vg_tex2d_free( (vg_tex2d *[]){ &tex_scoretext }, 1 );
 230 }
 231
 232 #endif /* SFD_H */