src/gallium/aux/draw/draw_context.h

   1
   2 /**************************************************************************
   3  *
   4  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the
   9  * "Software"), to deal in the Software without restriction, including
  10  * without limitation the rights to use, copy, modify, merge, publish,
  11  * distribute, sub license, and/or sell copies of the Software, and to
  12  * permit persons to whom the Software is furnished to do so, subject to
  13  * the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the
  16  * next paragraph) shall be included in all copies or substantial portions
  17  * of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26  *
  27  **************************************************************************/
  28
  29 /**
  30  * \brief  Public interface into the drawing module.
  31  */
  32
  33 /* Authors:  Keith Whitwell <keith@tungstengraphics.com>
  34  */
  35
  36
  37 #ifndef DRAW_CONTEXT_H
  38 #define DRAW_CONTEXT_H
  39
  40
  41 #include "pipe/p_state.h"
  42
  43
  44 struct vertex_buffer;
  45 struct vertex_info;
  46 struct draw_context;
  47 struct draw_stage;
  48 struct draw_vertex_shader;
  49
  50
  51 /**
  52  * Clipmask flags
  53  */
  54 /*@{*/
  55 #define CLIP_RIGHT_BIT   0x01
  56 #define CLIP_LEFT_BIT    0x02
  57 #define CLIP_TOP_BIT     0x04
  58 #define CLIP_BOTTOM_BIT  0x08
  59 #define CLIP_NEAR_BIT    0x10
  60 #define CLIP_FAR_BIT     0x20
  61 /*@}*/
  62
  63 /**
  64  * Bitshift for each clip flag
  65  */
  66 /*@{*/
  67 #define CLIP_RIGHT_SHIFT        0
  68 #define CLIP_LEFT_SHIFT         1
  69 #define CLIP_TOP_SHIFT          2
  70 #define CLIP_BOTTOM_SHIFT       3
  71 #define CLIP_NEAR_SHIFT         4
  72 #define CLIP_FAR_SHIFT          5
  73 /*@}*/
  74
  75
  76 struct draw_context *draw_create( void );
  77
  78 void draw_destroy( struct draw_context *draw );
  79
  80 void draw_set_viewport_state( struct draw_context *draw,
  81                               const struct pipe_viewport_state *viewport );
  82
  83 void draw_set_clip_state( struct draw_context *pipe,
  84                           const struct pipe_clip_state *clip );
  85
  86 void draw_set_rasterizer_state( struct draw_context *draw,
  87                                 const struct pipe_rasterizer_state *raster );
  88
  89 void draw_set_rasterize_stage( struct draw_context *draw,
  90                                struct draw_stage *stage );
  91
  92 void draw_convert_wide_points(struct draw_context *draw, boolean enable);
  93
  94 void draw_convert_wide_lines(struct draw_context *draw, boolean enable);
  95
  96
  97 struct draw_vertex_shader *
  98 draw_create_vertex_shader(struct draw_context *draw,
  99                           const struct pipe_shader_state *shader);
 100 void draw_bind_vertex_shader(struct draw_context *draw,
 101                              struct draw_vertex_shader *dvs);
 102 void draw_delete_vertex_shader(struct draw_context *draw,
 103                                struct draw_vertex_shader *dvs);
 104
 105 boolean draw_use_sse(struct draw_context *draw);
 106
 107 void draw_set_vertex_buffer(struct draw_context *draw,
 108                             unsigned attr,
 109                             const struct pipe_vertex_buffer *buffer);
 110
 111 void draw_set_vertex_element(struct draw_context *draw,
 112                              unsigned attr,
 113                              const struct pipe_vertex_element *element);
 114
 115 void draw_set_mapped_element_buffer( struct draw_context *draw,
 116                                      unsigned eltSize, void *elements );
 117
 118 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 119                                    unsigned attr, const void *buffer);
 120
 121 void draw_set_mapped_constant_buffer(struct draw_context *draw,
 122                                      const void *buffer);
 123
 124
 125 /***********************************************************************
 126  * draw_prim.c
 127  */
 128
 129 void draw_arrays(struct draw_context *draw, unsigned prim,
 130                  unsigned start, unsigned count);
 131
 132 void draw_flush(struct draw_context *draw);
 133
 134 /***********************************************************************
 135  * draw_debug.c
 136  */
 137 boolean draw_validate_prim( unsigned prim, unsigned length );
 138 unsigned draw_trim_prim( unsigned mode, unsigned count );
 139
 140
 141
 142 #endif /* DRAW_CONTEXT_H */