ext_csr_free.c

   1 // Copyright (C) 2021 Harry Godden (hgn)
   2
   3 // Basic buffers-only version of csRadar
   4 //=======================================================================================================================
   5
   6 #include "csRadar.h"
   7
   8 // GBuffer shader
   9 void frag_gbuffer( void *dest, vmf_vert tri[3], float bca, float bcb, float bcc );
  10 void frag_gbuffer_clear( void *dest );
  11
  12 csr_shader shader_gbuffer =
  13 {
  14         .stride = sizeof(float)*8, // (origin) x,y, (actual height) z
  15         .frag = frag_gbuffer,
  16         .clear = frag_gbuffer_clear
  17 };
  18
  19 // Main drawing function
  20 void draw_buffers( csr_api *api, int bounds_only );
  21
  22 // Extension implementation
  23 // =========================================================================================================
  24
  25 // API ENTRY
  26 void csr_ext_main( csr_api *api )
  27 {
  28         if( !csr_init( api ) )
  29                 return;
  30
  31         csr_create_target( &api->target, api->resolution, api->resolution, api->sampling_mode, &shader_gbuffer );
  32         csr_rt_clear( &api->target );
  33
  34         // Compute bounds, collect models
  35         draw_buffers( api, 1 );
  36         csr_auto_fit( &api->target, api->padding );
  37         vmf_load_models( api->map );
  38
  39         // Draw everything
  40         draw_buffers( api, 0 );
  41 }
  42
  43 void csr_ext_exit( csr_api *api )
  44 {
  45         csr_rt_free( &api->target );
  46 }
  47
  48 void draw_buffers( csr_api *api, int bounds_only )
  49 {
  50         csr_filter filter = { .compute_bounds_only = bounds_only };
  51         vmf_map *map = api->map;
  52
  53         if( api->num_strings == 1 )
  54         {
  55                 // Draw everything
  56                 csr_vmf_render( &api->target, map, map->root, &filter, NULL, NULL );
  57
  58                 if( !bounds_only )
  59                 {
  60                         csr_rt_save_buffers( &api->target, api->output_path, "all" );
  61                 }
  62         }
  63         else
  64         {
  65                 // Draw groups
  66                 for( int i = 1; i < api->num_strings; i ++ )
  67                 {
  68                         filter.visgroup = api->strings[ i ];
  69                         csr_vmf_render( &api->target, map, map->root, &filter, NULL, NULL );
  70
  71                         if( !bounds_only )
  72                         {
  73                                 csr_rt_save_buffers( &api->target, api->output_path, api->strings[i] );
  74                                 //csr_rt_save_c32f( ... );
  75                                 //csr_rt_save_tga( ... );
  76
  77                                 // tar_write_dds( ... );
  78
  79                                 csr_rt_clear( &api->target );
  80                         }
  81                 }
  82         }
  83 }
  84
  85 void frag_gbuffer( void *dest, vmf_vert tri[3], float bca, float bcb, float bcc )
  86 {
  87         float *dest_colour = (float *)dest;
  88
  89         v3_muls( tri[0].co, bca, dest_colour );
  90         v3_muladds( dest_colour, tri[1].co, bcb, dest_colour );
  91         v3_muladds( dest_colour, tri[2].co, bcc, dest_colour );
  92
  93         // TODO: Normal map
  94 }
  95
  96 void frag_gbuffer_clear( void *dest )
  97 {
  98         float *dest_colour = (float *)dest;
  99         v3_zero( dest_colour );
 100 }