src/mesa/state_tracker/st_program.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2003 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  /*
  29   * Authors:
  30   *   Keith Whitwell <keith@tungstengraphics.com>
  31   */
  32
  33
  34 #ifndef ST_PROGRAM_H
  35 #define ST_PROGRAM_H
  36
  37 #include "main/mtypes.h"
  38 #include "shader/program.h"
  39 #include "pipe/p_shader_tokens.h"
  40
  41
  42 struct cso_fragment_shader;
  43 struct cso_vertex_shader;
  44 struct translated_vertex_program;
  45
  46
  47 /**
  48  * Derived from Mesa gl_fragment_program:
  49  */
  50 struct st_fragment_program
  51 {
  52    struct gl_fragment_program Base;
  53    GLuint serialNo;
  54
  55    GLuint input_to_slot[FRAG_ATTRIB_MAX];  /**< Maps FRAG_ATTRIB_x to slot */
  56    GLuint num_input_slots;
  57
  58    /** map FP input back to VP output */
  59    GLuint input_map[PIPE_MAX_SHADER_INPUTS];
  60
  61    struct pipe_shader_state state;
  62    void *driver_shader;
  63
  64    GLuint param_state;
  65
  66    /** List of vertex programs which have been translated such that their
  67     * outputs match this fragment program's inputs.
  68     */
  69    struct translated_vertex_program *vertex_programs;
  70
  71    /** Program prefixed with glBitmap prologue */
  72    struct st_fragment_program *bitmap_program;
  73    uint bitmap_sampler;
  74 };
  75
  76
  77 /**
  78  * Derived from Mesa gl_fragment_program:
  79  */
  80 struct st_vertex_program
  81 {
  82    struct gl_vertex_program Base;  /**< The Mesa vertex program */
  83    GLuint serialNo;
  84
  85    /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
  86    GLuint input_to_index[VERT_ATTRIB_MAX];
  87    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
  88    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
  89
  90    GLuint num_inputs;
  91
  92    struct pipe_shader_state state;
  93    void *driver_shader;
  94
  95    /** For using our private draw module (glRasterPos) */
  96    struct draw_vertex_shader *draw_shader;
  97
  98    GLuint param_state;
  99 };
 100
 101
 102 static INLINE struct st_fragment_program *
 103 st_fragment_program( struct gl_fragment_program *fp )
 104 {
 105    return (struct st_fragment_program *)fp;
 106 }
 107
 108
 109 static INLINE struct st_vertex_program *
 110 st_vertex_program( struct gl_vertex_program *vp )
 111 {
 112    return (struct st_vertex_program *)vp;
 113 }
 114
 115
 116 static INLINE void
 117 st_reference_vertprog(struct st_context *st,
 118                       struct st_vertex_program **ptr,
 119                       struct st_vertex_program *prog)
 120 {
 121    _mesa_reference_program(st->ctx,
 122                            (struct gl_program **) ptr,
 123                            (struct gl_program *) prog);
 124 }
 125
 126 static INLINE void
 127 st_reference_fragprog(struct st_context *st,
 128                       struct st_fragment_program **ptr,
 129                       struct st_fragment_program *prog)
 130 {
 131    _mesa_reference_program(st->ctx,
 132                            (struct gl_program **) ptr,
 133                            (struct gl_program *) prog);
 134 }
 135
 136
 137 extern void
 138 st_translate_fragment_program(struct st_context *st,
 139                               struct st_fragment_program *fp,
 140                               const GLuint inputMapping[]);
 141
 142
 143 extern void
 144 st_translate_vertex_program(struct st_context *st,
 145                             struct st_vertex_program *vp,
 146                             const GLuint vert_output_to_slot[]);
 147
 148 #endif