src/mesa/pipe/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 draw_context;
  46 struct draw_stage;
  47
  48
  49 /**
  50  * Clipmask flags
  51  */
  52 /*@{*/
  53 #define CLIP_RIGHT_BIT   0x01
  54 #define CLIP_LEFT_BIT    0x02
  55 #define CLIP_TOP_BIT     0x04
  56 #define CLIP_BOTTOM_BIT  0x08
  57 #define CLIP_NEAR_BIT    0x10
  58 #define CLIP_FAR_BIT     0x20
  59 #define CLIP_CULL_BIT    (1 << (6 + PIPE_MAX_CLIP_PLANES)) /*unused? */
  60 /*@}*/
  61
  62 /**
  63  * Bitshift for each clip flag
  64  */
  65 /*@{*/
  66 #define CLIP_RIGHT_SHIFT        0
  67 #define CLIP_LEFT_SHIFT         1
  68 #define CLIP_TOP_SHIFT          2
  69 #define CLIP_BOTTOM_SHIFT       3
  70 #define CLIP_NEAR_SHIFT         4
  71 #define CLIP_FAR_SHIFT          5
  72 /*@}*/
  73
  74
  75 struct draw_context *draw_create( void );
  76
  77 void draw_destroy( struct draw_context *draw );
  78
  79 void draw_set_viewport_state( struct draw_context *draw,
  80                               const struct pipe_viewport_state *viewport );
  81
  82 void draw_set_clip_state( struct draw_context *pipe,
  83                           const struct pipe_clip_state *clip );
  84
  85 void draw_set_setup_state( struct draw_context *draw,
  86                            const struct pipe_setup_state *setup );
  87
  88 void draw_set_setup_stage( struct draw_context *draw,
  89                            struct draw_stage *stage );
  90
  91 void draw_set_vertex_attributes( struct draw_context *draw,
  92                                  const uint *attrs, const uint *interp_mode,
  93                                  unsigned nr_attrs );
  94
  95 unsigned draw_prim_info( unsigned prim, unsigned *first, unsigned *incr );
  96
  97 unsigned draw_trim( unsigned count, unsigned first, unsigned incr );
  98
  99 void draw_set_mapped_element_buffer( struct draw_context *draw,
 100                                      unsigned eltSize, void *elements );
 101
 102 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
 103                                    unsigned attr, const void *buffer);
 104
 105 void draw_set_mapped_constant_buffer(struct draw_context *draw,
 106                                      const void *buffer);
 107
 108 void
 109 draw_set_vertex_buffer(struct draw_context *draw,
 110                        unsigned attr,
 111                        const struct pipe_vertex_buffer *buffer);
 112
 113 void
 114 draw_set_vertex_element(struct draw_context *draw,
 115                         unsigned attr,
 116                         const struct pipe_vertex_element *element);
 117
 118 void
 119 draw_set_vertex_shader(struct draw_context *draw,
 120                        const struct pipe_shader_state *shader);
 121
 122
 123 void
 124 draw_arrays(struct draw_context *draw, unsigned prim,
 125             unsigned start, unsigned count);
 126
 127
 128 #endif /* DRAW_CONTEXT_H */