src/gallium/auxiliary/draw/draw_vertex.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 /*
  29  * Functions for specifying the post-transformation vertex layout.
  30  *
  31  * Author:
  32  *    Brian Paul
  33  *    Keith Whitwell
  34  */
  35
  36
  37 #include "draw/draw_private.h"
  38 #include "draw/draw_vertex.h"
  39
  40
  41 /**
  42  * Compute the size of a vertex, in dwords/floats, to update the
  43  * vinfo->size field.
  44  */
  45 void
  46 draw_compute_vertex_size(struct vertex_info *vinfo)
  47 {
  48    uint i;
  49
  50    vinfo->size = 0;
  51    for (i = 0; i < vinfo->num_attribs; i++) {
  52       switch (vinfo->attrib[i].emit) {
  53       case EMIT_OMIT:
  54          break;
  55       case EMIT_4UB:
  56          /* fall-through */
  57       case EMIT_1F_PSIZE:
  58          /* fall-through */
  59       case EMIT_1F:
  60          vinfo->size += 1;
  61          break;
  62       case EMIT_2F:
  63          vinfo->size += 2;
  64          break;
  65       case EMIT_3F:
  66          vinfo->size += 3;
  67          break;
  68       case EMIT_4F:
  69          vinfo->size += 4;
  70          break;
  71       default:
  72          assert(0);
  73       }
  74    }
  75 }
  76
  77
  78 void
  79 draw_dump_emitted_vertex(const struct vertex_info *vinfo, const uint8_t *data)
  80 {
  81    unsigned i, j;
  82
  83    for (i = 0; i < vinfo->num_attribs; i++) {
  84       j = vinfo->attrib[i].src_index;
  85       switch (vinfo->attrib[i].emit) {
  86       case EMIT_OMIT:
  87          debug_printf("EMIT_OMIT:");
  88          break;
  89       case EMIT_1F:
  90          debug_printf("EMIT_1F:\t");
  91          debug_printf("%f ", *(float *)data); data += sizeof(float);
  92          break;
  93       case EMIT_1F_PSIZE:
  94          debug_printf("EMIT_1F_PSIZE:\t");
  95          debug_printf("%f ", *(float *)data); data += sizeof(float);
  96          break;
  97       case EMIT_2F:
  98          debug_printf("EMIT_2F:\t");
  99          debug_printf("%f ", *(float *)data); data += sizeof(float);
 100          debug_printf("%f ", *(float *)data); data += sizeof(float);
 101          break;
 102       case EMIT_3F:
 103          debug_printf("EMIT_3F:\t");
 104          debug_printf("%f ", *(float *)data); data += sizeof(float);
 105          debug_printf("%f ", *(float *)data); data += sizeof(float);
 106          debug_printf("%f ", *(float *)data); data += sizeof(float);
 107          data += sizeof(float);
 108          break;
 109       case EMIT_4F:
 110          debug_printf("EMIT_4F:\t");
 111          debug_printf("%f ", *(float *)data); data += sizeof(float);
 112          debug_printf("%f ", *(float *)data); data += sizeof(float);
 113          debug_printf("%f ", *(float *)data); data += sizeof(float);
 114          debug_printf("%f ", *(float *)data); data += sizeof(float);
 115          break;
 116       case EMIT_4UB:
 117          debug_printf("EMIT_4UB:\t");
 118          debug_printf("%u ", *data++);
 119          debug_printf("%u ", *data++);
 120          debug_printf("%u ", *data++);
 121          debug_printf("%u ", *data++);
 122          break;
 123       default:
 124          assert(0);
 125       }
 126       debug_printf("\n");
 127    }
 128    debug_printf("\n");
 129 }