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 GLuint tex_scoretex;
  13 float sfd_encode_glyph( char c )
  14 {
  15    int value = 0;
  16    if( c >= 'a' && c <= 'z' )
  17       value = c-'a'+11;
  18    else if( c >= '0' && c <= '9' )
  19       value = c-'0'+1;
  20    else if( c >= 'A' && c <= 'Z' )
  21       value = c-'A'+11;
  22    else if( c >= '\x01' && c <= '\x01'+10 )
  23       value = 63-c;
  24    else{
  25       int base = 11+26;
  26
  27       switch( c ){
  28          case '!': value=base+0; break;
  29          case '?': value=base+1; break;
  30          case ',': value=base+2; break;
  31          case '.': value=base+3; break;
  32          case '#': value=base+4; break;
  33          case '$': value=base+5; break;
  34          case '%': value=base+6; break;
  35          case '*': value=base+7; break;
  36          case '+': value=base+8; break;
  37          case '-': value=base+9; break;
  38          case '/': value=base+10; break;
  39          case ':': value=base+11; break;
  40          default: value=0; break;
  41       }
  42    }
  43
  44    return (float)value;
  45 }
  46
  47 VG_STATIC void sfd_encode( u32 row, const char *str )
  48 {
  49    int end=0;
  50    u32 row_h = world_global.sfd.h -1 -row;
  51
  52    for( int i=0; i<world_global.sfd.w; i++ ){
  53       u32 idx = (world_global.sfd.w*row_h + i) * 2;
  54
  55       if( end ){
  56          world_global.sfd.buffer[idx] = 0.0f;
  57       }
  58       else{
  59          if( !str[i] )
  60             end = 1;
  61
  62          world_global.sfd.buffer[idx] = sfd_encode_glyph( str[i] );
  63       }
  64    }
  65 }
  66
  67 VG_STATIC void sfd_update(void)
  68 {
  69    for( int i=0; i<world_global.sfd.w*world_global.sfd.h; i++ ){
  70       float *target = &world_global.sfd.buffer[i*2+0],
  71             *cur =    &world_global.sfd.buffer[i*2+1];
  72
  73       float const rate = vg.time_delta * 15.2313131414f;
  74       float d1 = *target-*cur;
  75
  76       if( fabsf(d1) > rate ){
  77          *cur += rate;
  78          if( *cur > 60.0f )
  79             *cur -= 60.0f;
  80       }
  81       else
  82          *cur = *target;
  83    }
  84 }
  85
  86 VG_STATIC void bind_terrain_noise(void);
  87 VG_STATIC void sfd_render( world_instance *world, camera *cam, m4x3f transform )
  88 {
  89    mesh_bind( &world_global.sfd.mesh_display );
  90    shader_scene_scoretext_use();
  91    shader_scene_scoretext_uTexMain(1);
  92
  93    world_link_lighting_ub( world, _shader_scene_scoretext.id );
  94    world_bind_position_texture( world, _shader_scene_scoretext.id,
  95                         _uniform_scene_scoretext_g_world_depth, 2 );
  96    world_bind_light_array( world, _shader_scene_scoretext.id,
  97                         _uniform_scene_scoretext_uLightsArray, 3 );
  98    world_bind_light_index( world, _shader_scene_scoretext.id,
  99                            _uniform_scene_scoretext_uLightsIndex, 4 );
 100
 101    bind_terrain_noise();
 102
 103    glActiveTexture( GL_TEXTURE1 );
 104    glBindTexture( GL_TEXTURE_2D, tex_scoretex );
 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    glActiveTexture( GL_TEXTURE1 );
 135    glBindTexture( GL_TEXTURE_2D, tex_scoretex );
 136
 137    shader_scene_vertex_blend_uPv( cam->mtx.pv );
 138    shader_scene_vertex_blend_uPvmPrev( pvm_prev );
 139    shader_scene_vertex_blend_uMdl( transform );
 140    shader_scene_vertex_blend_uCamera( cam->transform[3] );
 141
 142    mesh_bind( &world_global.sfd.mesh_base );
 143    mdl_draw_submesh( &world_global.sfd.sm_base );
 144 }
 145
 146 VG_STATIC int world_sfd_test( int argc, const char *argv[] )
 147 {
 148    if( argc == 2 ){
 149       int row = vg_min( vg_max(atoi(argv[0]),0), world_global.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_scene_scoretext_register();
 160    vg_console_reg_cmd( "sfd", world_sfd_test, NULL );
 161
 162    vg_linear_clear( vg_mem.scratch );
 163
 164    mdl_context mscoreboard;
 165    mdl_open( &mscoreboard, "models/rs_scoretext.mdl", vg_mem.scratch );
 166    mdl_load_metadata_block( &mscoreboard, vg_mem.scratch );
 167    mdl_async_load_glmesh( &mscoreboard, &world_global.sfd.mesh_base );
 168
 169    mdl_load_mesh_block( &mscoreboard, vg_mem.scratch );
 170
 171    scene_context *scene = &world_global.sfd.scene;
 172    vg_async_item *call = scene_alloc_async( scene,
 173                                             &world_global.sfd.mesh_display,
 174                                             3000, 8000 );
 175
 176
 177    mdl_mesh *m_backer = mdl_find_mesh( &mscoreboard, "backer" ),
 178             *m_card   = mdl_find_mesh( &mscoreboard, "score_card" );
 179
 180    mdl_submesh
 181       *sm_backer = mdl_arritm( &mscoreboard.submeshs, m_backer->submesh_start ),
 182       *sm_card   = mdl_arritm( &mscoreboard.submeshs, m_card->submesh_start );
 183    world_global.sfd.sm_base = *sm_backer;
 184
 185    m4x3f identity;
 186    m4x3_identity( identity );
 187
 188    for( int i=0;i<4;i++ ){
 189       u32 vert_start = scene->vertex_count;
 190       scene_add_mdl_submesh( scene, &mscoreboard, sm_card, identity );
 191
 192       for( int j=0; j<sm_card->vertex_count; j++ ){
 193          scene_vert *vert = &scene->arrvertices[ vert_start+j ];
 194
 195          float const k_glyph_uvw = 1.0f/64.0f;
 196          vert->uv[0] -= k_glyph_uvw * (float)(i-1);
 197          vert->norm[3] = i*42;
 198       }
 199    }
 200
 201    vg_async_dispatch( call, async_scene_upload );
 202    vg_tex2d_load_qoi_async_file( "textures/scoretext.qoi",
 203                                  VG_TEX2D_CLAMP|VG_TEX2D_NEAREST,
 204                                  &tex_scoretex );
 205
 206    mdl_close( &mscoreboard );
 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 */