src/mesa/pipe/p_context.h

   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 #ifndef PIPE_CONTEXT_H
  29 #define PIPE_CONTEXT_H
  30
  31 #include "main/mtypes.h"
  32 #include "p_state.h"
  33
  34
  35 /* Kludge:
  36  */
  37 extern struct pipe_context *softpipe_create( void );
  38
  39 /* Drawing currently kludged up via the existing tnl/ module.
  40  */
  41 struct vertex_buffer;
  42
  43
  44 /**
  45  * Software pipeline rendering context.  Basically a collection of
  46  * state setting functions, plus VBO drawing entrypoint.
  47  */
  48 struct pipe_context {
  49
  50    void (*destroy)( struct pipe_context * );
  51
  52    /*
  53     * Drawing
  54     */
  55    void (*draw_vb)( struct pipe_context *pipe,
  56                     struct vertex_buffer *VB );
  57
  58    /** Clear framebuffer */
  59    void (*clear)(struct pipe_context *pipe, GLboolean color, GLboolean depth,
  60                  GLboolean stencil, GLboolean accum);
  61
  62    /** occlusion counting (XXX this may be temporary - we should probably
  63     * have generic query objects with begin/end methods)
  64     */
  65    void (*reset_occlusion_counter)(struct pipe_context *pipe);
  66    GLuint (*get_occlusion_counter)(struct pipe_context *pipe);
  67
  68    /*
  69     * State functions
  70     */
  71    void (*set_alpha_test_state)( struct pipe_context *,
  72                                  const struct pipe_alpha_test_state * );
  73
  74    void (*set_blend_state)( struct pipe_context *,
  75                             const struct pipe_blend_state * );
  76
  77    void (*set_blend_color)( struct pipe_context *,
  78                             const struct pipe_blend_color * );
  79
  80    void (*set_clip_state)( struct pipe_context *,
  81                            const struct pipe_clip_state * );
  82
  83    void (*set_clear_color_state)( struct pipe_context *,
  84                                   const struct pipe_clear_color_state * );
  85
  86    void (*set_depth_state)( struct pipe_context *,
  87                               const struct pipe_depth_state * );
  88
  89    void (*set_framebuffer_state)( struct pipe_context *,
  90                                   const struct pipe_framebuffer_state * );
  91
  92    void (*set_fs_state)( struct pipe_context *,
  93                          const struct pipe_fs_state * );
  94
  95    void (*set_polygon_stipple)( struct pipe_context *,
  96                                 const struct pipe_poly_stipple * );
  97
  98    void (*set_setup_state)( struct pipe_context *,
  99                             const struct pipe_setup_state * );
 100
 101    void (*set_scissor_state)( struct pipe_context *,
 102                               const struct pipe_scissor_state * );
 103
 104    void (*set_stencil_state)( struct pipe_context *,
 105                               const struct pipe_stencil_state * );
 106
 107    void (*set_sampler_state)( struct pipe_context *,
 108                               GLuint unit,
 109                               const struct pipe_sampler_state * );
 110
 111    void (*set_texture_state)( struct pipe_context *,
 112                               GLuint unit,
 113                               struct pipe_texture_object * );
 114
 115    void (*set_viewport_state)( struct pipe_context *,
 116                                const struct pipe_viewport_state * );
 117 };
 118
 119
 120 #endif