src/gallium/drivers/llvmpipe/lp_setup.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 #ifndef LP_SETUP_H
  28 #define LP_SETUP_H
  29
  30 #include "pipe/p_compiler.h"
  31
  32 enum lp_interp {
  33    LP_INTERP_CONSTANT,
  34    LP_INTERP_LINEAR,
  35    LP_INTERP_PERSPECTIVE,
  36    LP_INTERP_POSITION,
  37    LP_INTERP_FACING
  38 };
  39
  40 /* Describes how to generate all the fragment shader inputs from the
  41  * the vertices passed into our triangle/line/point functions.
  42  *
  43  * Vertices are treated as an array of float[4] values, indexed by
  44  * src_index.
  45  */
  46 struct lp_shader_input {
  47    enum lp_interp interp;       /* how to interpolate values */
  48    unsigned src_index;          /* where to find values in incoming vertices */
  49 };
  50
  51 struct pipe_texture;
  52 struct pipe_surface;
  53 struct pipe_buffer;
  54 struct pipe_blend_color;
  55 struct pipe_screen;
  56 struct setup_context;
  57 struct lp_fragment_shader;
  58 struct lp_jit_context;
  59
  60 struct setup_context *
  61 lp_setup_create( struct pipe_screen *screen );
  62
  63 void
  64 lp_setup_clear(struct setup_context *setup,
  65                const float *clear_color,
  66                double clear_depth,
  67                unsigned clear_stencil,
  68                unsigned flags);
  69
  70 void
  71 lp_setup_tri(struct setup_context *setup,
  72              const float (*v0)[4],
  73              const float (*v1)[4],
  74              const float (*v2)[4]);
  75
  76 void
  77 lp_setup_line(struct setup_context *setup,
  78               const float (*v0)[4],
  79               const float (*v1)[4]);
  80
  81 void
  82 lp_setup_point( struct setup_context *setup,
  83                 const float (*v0)[4] );
  84
  85
  86 void
  87 lp_setup_flush( struct setup_context *setup,
  88                 unsigned flags );
  89
  90
  91 void
  92 lp_setup_bind_framebuffer( struct setup_context *setup,
  93                            struct pipe_surface *color,
  94                            struct pipe_surface *zstencil );
  95
  96 void
  97 lp_setup_set_triangle_state( struct setup_context *setup,
  98                              unsigned cullmode,
  99                              boolean front_is_ccw );
 100
 101 void
 102 lp_setup_set_fs_inputs( struct setup_context *setup,
 103                         const struct lp_shader_input *interp,
 104                         unsigned nr );
 105
 106 void
 107 lp_setup_set_fs( struct setup_context *setup,
 108                  struct lp_fragment_shader *fs );
 109
 110 void
 111 lp_setup_set_fs_constants(struct setup_context *setup,
 112                           struct pipe_buffer *buffer);
 113
 114
 115 void
 116 lp_setup_set_alpha_ref_value( struct setup_context *setup,
 117                               float alpha_ref_value );
 118
 119 void
 120 lp_setup_set_blend_color( struct setup_context *setup,
 121                           const struct pipe_blend_color *blend_color );
 122
 123 void
 124 lp_setup_set_sampler_textures( struct setup_context *setup,
 125                                unsigned num, struct pipe_texture **texture);
 126
 127 boolean
 128 lp_setup_is_texture_referenced( struct setup_context *setup,
 129                                 const struct pipe_texture *texture );
 130
 131
 132 void
 133 lp_setup_destroy( struct setup_context *setup );
 134
 135 #endif