1.1 --- a/src/pvr2/rendsort.c	Sun Sep 28 00:30:45 2008 +0000
     1.2 +++ b/src/pvr2/rendsort.c	Sun Sep 28 00:31:58 2008 +0000
     1.3 @@ -69,64 +69,38 @@
     1.4  int sort_extract_triangles( pvraddr_t tile_entry, struct sort_triangle *triangles )
     1.5  {
     1.6      uint32_t *tile_list = (uint32_t *)(video_base+tile_entry);
     1.7 -    int count = 0;
     1.8 +    int strip_count;
     1.9 +    struct polygon_struct *poly;
    1.10 +    int count = 0, i;
    1.11 +
    1.12      while(1) {
    1.13          uint32_t entry = *tile_list++;
    1.14 -        if( entry >> 28 == 0x0F ) {
    1.15 +        switch( entry >> 28 ) {
    1.16 +        case 0x0F:
    1.17 +            return count; // End-of-list
    1.18 +        case 0x0E:
    1.19 +            tile_list = (uint32_t *)(video_base + (entry&0x007FFFFF));
    1.20              break;
    1.21 -        } else if( entry >> 28 == 0x0E ) {
    1.22 -            tile_list = (uint32_t *)(video_base+(entry&0x007FFFFF));
    1.23 -        } else {
    1.24 -            uint32_t poly_addr = entry & 0x000FFFFF;
    1.25 -            int is_modified = entry & 0x01000000;
    1.26 -            int vertex_length = (entry >> 21) & 0x07;
    1.27 -            int context_length = 3;
    1.28 -            if( is_modified && pvr2_scene.full_shadow ) {
    1.29 -                context_length = 5;
    1.30 -                vertex_length *= 2 ;
    1.31 -            }
    1.32 -            vertex_length += 3;
    1.33 -
    1.34 -            if( (entry & 0xE0000000) == 0x80000000 ) {
    1.35 -                /* Triangle(s) */
    1.36 -                int strip_count = ((entry >> 25) & 0x0F)+1;
    1.37 -                int polygon_length = 3 * vertex_length + context_length;
    1.38 -                int i;
    1.39 -                for( i=0; i<strip_count; i++ ) {
    1.40 -                    struct polygon_struct *poly = pvr2_scene.buf_to_poly_map[poly_addr];
    1.41 +        case 0x08: case 0x09: case 0x0A: case 0x0B:
    1.42 +            strip_count = ((entry >> 25) & 0x0F)+1;
    1.43 +            poly = pvr2_scene.buf_to_poly_map[entry&0x000FFFFF];
    1.44 +            while( strip_count > 0 ) {
    1.45 +                assert( poly != NULL );
    1.46 +                for( i=0; i<poly->vertex_count-2; i++ ) { 
    1.47                      triangles[count].poly = poly;
    1.48 -                    triangles[count].triangle_num = 0;
    1.49 -                    triangles[count].maxz = MAX3( pvr2_scene.vertex_array[poly->vertex_index].z,
    1.50 -                            pvr2_scene.vertex_array[poly->vertex_index+1].z,
    1.51 -                            pvr2_scene.vertex_array[poly->vertex_index+2].z );
    1.52 -                    poly_addr += polygon_length;
    1.53 +                    triangles[count].triangle_num = i;
    1.54 +                    triangles[count].maxz = MAX3( pvr2_scene.vertex_array[poly->vertex_index+i].z,
    1.55 +                            pvr2_scene.vertex_array[poly->vertex_index+i+1].z,
    1.56 +                            pvr2_scene.vertex_array[poly->vertex_index+i+2].z );
    1.57                      count++;
    1.58                  }
    1.59 -            } else if( (entry & 0xE0000000) == 0xA0000000 ) {
    1.60 -                /* Quad(s) */
    1.61 -                int strip_count = ((entry >> 25) & 0x0F)+1;
    1.62 -                int polygon_length = 4 * vertex_length + context_length;
    1.63 -                int i;
    1.64 -                for( i=0; i<strip_count; i++ ) {
    1.65 -                    struct polygon_struct *poly = pvr2_scene.buf_to_poly_map[poly_addr];
    1.66 -                    triangles[count].poly = poly;
    1.67 -                    triangles[count].triangle_num = 0;
    1.68 -                    triangles[count].maxz = MAX3( pvr2_scene.vertex_array[poly->vertex_index].z,
    1.69 -                            pvr2_scene.vertex_array[poly->vertex_index+1].z,
    1.70 -                            pvr2_scene.vertex_array[poly->vertex_index+2].z );
    1.71 -                    count++;
    1.72 -                    triangles[count].poly = poly;
    1.73 -                    triangles[count].triangle_num = 1;
    1.74 -                    triangles[count].maxz = MAX3( pvr2_scene.vertex_array[poly->vertex_index+1].z,
    1.75 -                            pvr2_scene.vertex_array[poly->vertex_index+2].z,
    1.76 -                            pvr2_scene.vertex_array[poly->vertex_index+3].z );
    1.77 -                    count++;
    1.78 -                    poly_addr += polygon_length;
    1.79 -                }
    1.80 -            } else {
    1.81 -                /* Polygon */
    1.82 -                int i;
    1.83 -                struct polygon_struct *poly = pvr2_scene.buf_to_poly_map[poly_addr];
    1.84 +                poly = poly->next;
    1.85 +                strip_count--;
    1.86 +            }
    1.87 +            break;
    1.88 +        default:
    1.89 +            if( entry & 0x7E000000 ) {
    1.90 +                poly = pvr2_scene.buf_to_poly_map[entry&0x000FFFFF];
    1.91                  for( i=0; i<6; i++ ) {
    1.92                      if( entry & (0x40000000>>i) ) {
    1.93                          triangles[count].poly = poly;
    1.94 @@ -139,8 +113,8 @@
    1.95                  }
    1.96              }
    1.97          }
    1.98 -    }
    1.99 -    return count;
   1.100 +    }       
   1.101 +
   1.102  }
   1.103  
   1.104  void sort_render_triangles( struct sort_triangle *triangles, int num_triangles,