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    ubyte input_semantic_name[PIPE_MAX_SHADER_INPUTS];
  62    ubyte input_semantic_index[PIPE_MAX_SHADER_INPUTS];
  63
  64    struct pipe_shader_state state;
  65    void *driver_shader;
  66
  67    GLuint param_state;
  68
  69    /** List of vertex programs which have been translated such that their
  70     * outputs match this fragment program's inputs.
  71     */
  72    struct translated_vertex_program *vertex_programs;
  73
  74    /** Program prefixed with glBitmap prologue */
  75    struct st_fragment_program *bitmap_program;
  76    uint bitmap_sampler;
  77 };
  78
  79
  80 /**
  81  * Derived from Mesa gl_fragment_program:
  82  */
  83 struct st_vertex_program
  84 {
  85    struct gl_vertex_program Base;  /**< The Mesa vertex program */
  86    GLuint serialNo;
  87
  88    /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
  89    GLuint input_to_index[VERT_ATTRIB_MAX];
  90    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
  91    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
  92
  93    GLuint num_inputs;
  94
  95    struct pipe_shader_state state;
  96    void *driver_shader;
  97
  98    /** For using our private draw module (glRasterPos) */
  99    struct draw_vertex_shader *draw_shader;
 100
 101    GLuint param_state;
 102 };
 103
 104
 105 static INLINE struct st_fragment_program *
 106 st_fragment_program( struct gl_fragment_program *fp )
 107 {
 108    return (struct st_fragment_program *)fp;
 109 }
 110
 111
 112 static INLINE struct st_vertex_program *
 113 st_vertex_program( struct gl_vertex_program *vp )
 114 {
 115    return (struct st_vertex_program *)vp;
 116 }
 117
 118
 119 static INLINE void
 120 st_reference_vertprog(struct st_context *st,
 121                       struct st_vertex_program **ptr,
 122                       struct st_vertex_program *prog)
 123 {
 124    _mesa_reference_program(st->ctx,
 125                            (struct gl_program **) ptr,
 126                            (struct gl_program *) prog);
 127 }
 128
 129 static INLINE void
 130 st_reference_fragprog(struct st_context *st,
 131                       struct st_fragment_program **ptr,
 132                       struct st_fragment_program *prog)
 133 {
 134    _mesa_reference_program(st->ctx,
 135                            (struct gl_program **) ptr,
 136                            (struct gl_program *) prog);
 137 }
 138
 139
 140 extern void
 141 st_translate_fragment_program(struct st_context *st,
 142                               struct st_fragment_program *fp,
 143                               const GLuint inputMapping[]);
 144
 145
 146 extern void
 147 st_translate_vertex_program(struct st_context *st,
 148                             struct st_vertex_program *vp,
 149                             const GLuint vert_output_to_slot[],
 150                             const ubyte *fs_input_semantic_name,
 151                             const ubyte *fs_input_semantic_index);
 152
 153
 154 extern void
 155 st_print_shaders(GLcontext *ctx);
 156
 157
 158 #endif