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 "mtypes.h"
  38 #include "pipe/p_shader_tokens.h"
  39 #include "x86/rtasm/x86sse.h"
  40
  41
  42 #define ST_MAX_SHADER_TOKENS 1024
  43
  44
  45 struct cso_fragment_shader;
  46 struct cso_vertex_shader;
  47 struct translated_vertex_program;
  48
  49
  50 /**
  51  * Derived from Mesa gl_fragment_program:
  52  */
  53 struct st_fragment_program
  54 {
  55    struct gl_fragment_program Base;
  56    GLuint serialNo;
  57
  58    GLuint input_to_slot[FRAG_ATTRIB_MAX];  /**< Maps FRAG_ATTRIB_x to slot */
  59    GLuint num_input_slots;
  60
  61    /** The program in TGSI format */
  62    struct tgsi_token tokens[ST_MAX_SHADER_TOKENS];
  63
  64    /** Pointer to the corresponding cached shader */
  65    const struct cso_fragment_shader *fs;
  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
  75
  76 /**
  77  * Derived from Mesa gl_fragment_program:
  78  */
  79 struct st_vertex_program
  80 {
  81    struct gl_vertex_program Base;  /**< The Mesa vertex program */
  82    GLuint serialNo;
  83
  84    /** maps a Mesa VERT_ATTRIB_x to a packed TGSI input index */
  85    GLuint input_to_index[VERT_ATTRIB_MAX];
  86    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
  87    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
  88
  89    /** The program in TGSI format */
  90    struct tgsi_token tokens[ST_MAX_SHADER_TOKENS];
  91
  92    /** Pointer to the corresponding cached shader */
  93    const struct cso_vertex_shader *cso;
  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 extern void
 103 st_init_program_functions(struct dd_function_table *functions);
 104
 105
 106 static inline struct st_fragment_program *
 107 st_fragment_program( struct gl_fragment_program *fp )
 108 {
 109    return (struct st_fragment_program *)fp;
 110 }
 111
 112
 113 static inline struct st_vertex_program *
 114 st_vertex_program( struct gl_vertex_program *vp )
 115 {
 116    return (struct st_vertex_program *)vp;
 117 }
 118
 119
 120 extern const struct cso_fragment_shader *
 121 st_translate_fragment_program(struct st_context *st,
 122                               struct st_fragment_program *fp,
 123                               const GLuint inputMapping[],
 124                               struct tgsi_token *tokens,
 125                               GLuint maxTokens);
 126
 127
 128 extern void
 129 st_translate_vertex_program(struct st_context *st,
 130                             struct st_vertex_program *vp,
 131                             const GLuint vert_output_to_slot[],
 132                             struct tgsi_token *tokens,
 133                             GLuint maxTokens);
 134
 135 #endif