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 pipe_framebuffer_state;
  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 struct pipe_fence_handle *
  71 lp_setup_fence( struct setup_context *setup );
  72
  73
  74 void
  75 lp_setup_tri(struct setup_context *setup,
  76              const float (*v0)[4],
  77              const float (*v1)[4],
  78              const float (*v2)[4]);
  79
  80 void
  81 lp_setup_line(struct setup_context *setup,
  82               const float (*v0)[4],
  83               const float (*v1)[4]);
  84
  85 void
  86 lp_setup_point( struct setup_context *setup,
  87                 const float (*v0)[4] );
  88
  89
  90 void
  91 lp_setup_flush( struct setup_context *setup,
  92                 unsigned flags );
  93
  94
  95 void
  96 lp_setup_bind_framebuffer( struct setup_context *setup,
  97                            const struct pipe_framebuffer_state *fb );
  98
  99 void
 100 lp_setup_set_triangle_state( struct setup_context *setup,
 101                              unsigned cullmode,
 102                              boolean front_is_ccw );
 103
 104 void
 105 lp_setup_set_fs_inputs( struct setup_context *setup,
 106                         const struct lp_shader_input *interp,
 107                         unsigned nr );
 108
 109 void
 110 lp_setup_set_fs( struct setup_context *setup,
 111                  struct lp_fragment_shader *fs );
 112
 113 void
 114 lp_setup_set_fs_constants(struct setup_context *setup,
 115                           struct pipe_buffer *buffer);
 116
 117
 118 void
 119 lp_setup_set_alpha_ref_value( struct setup_context *setup,
 120                               float alpha_ref_value );
 121
 122 void
 123 lp_setup_set_blend_color( struct setup_context *setup,
 124                           const struct pipe_blend_color *blend_color );
 125
 126 void
 127 lp_setup_set_sampler_textures( struct setup_context *setup,
 128                                unsigned num, struct pipe_texture **texture);
 129
 130 boolean
 131 lp_setup_is_texture_referenced( struct setup_context *setup,
 132                                 const struct pipe_texture *texture );
 133
 134
 135 void
 136 lp_setup_destroy( struct setup_context *setup );
 137
 138 #endif