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  1. /*
  2.  * Copyright (C) 2009-2010 Francisco Jerez.
  3.  * All Rights Reserved.
  4.  *
  5.  * Permission is hereby granted, free of charge, to any person obtaining
  6.  * a copy of this software and associated documentation files (the
  7.  * "Software"), to deal in the Software without restriction, including
  8.  * without limitation the rights to use, copy, modify, merge, publish,
  9.  * distribute, sublicense, and/or sell copies of the Software, and to
  10.  * permit persons to whom the Software is furnished to do so, subject to
  11.  * the following conditions:
  12.  *
  13.  * The above copyright notice and this permission notice (including the
  14.  * next paragraph) shall be included in all copies or substantial
  15.  * portions of the Software.
  16.  *
  17.  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18.  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19.  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20.  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21.  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22.  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23.  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24.  *
  25.  */
  26.  
  27. #ifndef __NOUVEAU_RENDER_H__
  28. #define __NOUVEAU_RENDER_H__
  29.  
  30. #include "vbo/vbo_context.h"
  31. #include "nouveau_array.h"
  32.  
  33. typedef void (*dispatch_t)(struct gl_context *, unsigned int, int, unsigned int);
  34. typedef void (*emit_t)(struct gl_context *, struct nouveau_array *, const void *);
  35.  
  36. struct nouveau_attr_info {
  37.         int vbo_index;
  38.         int imm_method;
  39.         int imm_fields;
  40.  
  41.         emit_t emit;
  42. };
  43.  
  44. struct nouveau_swtnl_state {
  45.         struct nouveau_bo *vbo;
  46.         unsigned offset;
  47.         void *buf;
  48.         unsigned vertex_count;
  49.         GLenum primitive;
  50. };
  51.  
  52. struct nouveau_render_state {
  53.         enum {
  54.                 VBO,
  55.                 IMM
  56.         } mode;
  57.  
  58.         struct nouveau_array ib;
  59.         struct nouveau_array attrs[VERT_ATTRIB_MAX];
  60.  
  61.         /* Maps a HW VBO index or IMM emission order to an index in
  62.          * the attrs array above (or -1 if unused). */
  63.         int map[VERT_ATTRIB_MAX];
  64.  
  65.         int attr_count;
  66.         int vertex_size;
  67.  
  68.         struct nouveau_swtnl_state swtnl;
  69. };
  70.  
  71. #define to_render_state(ctx) (&to_nouveau_context(ctx)->render)
  72.  
  73. #define FOR_EACH_ATTR(render, i, attr)                                  \
  74.         for (i = 0; attr = (render)->map[i], i < NUM_VERTEX_ATTRS; i++)
  75.  
  76. #define FOR_EACH_BOUND_ATTR(render, i, attr)                            \
  77.         for (i = 0; attr = (render)->map[i], i < render->attr_count; i++) \
  78.                 if (attr >= 0)
  79.  
  80. #endif
  81.