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/tgsi/exec/tgsi_token.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 #if defined(__i386__) || defined(__386__)
  65    struct x86_function  sse2_program;
  66 #endif
  67
  68    /** Pointer to the corresponding cached shader */
  69    const struct cso_fragment_shader *fs;
  70
  71    GLuint param_state;
  72
  73    /** List of vertex programs which have been translated such that their
  74     * outputs match this fragment program's inputs.
  75     */
  76    struct translated_vertex_program *vertex_programs;
  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[MAX_VERTEX_PROGRAM_ATTRIBS];
  90    /** maps a TGSI input index back to a Mesa VERT_ATTRIB_x */
  91    GLuint index_to_input[PIPE_MAX_SHADER_INPUTS];
  92
  93    /** The program in TGSI format */
  94    struct tgsi_token tokens[ST_MAX_SHADER_TOKENS];
  95
  96    /** Pointer to the corresponding cached shader */
  97    const struct cso_vertex_shader *vs;
  98
  99    GLuint param_state;
 100 };
 101
 102
 103 extern void
 104 st_init_program_functions(struct dd_function_table *functions);
 105
 106
 107 static inline struct st_fragment_program *
 108 st_fragment_program( struct gl_fragment_program *fp )
 109 {
 110    return (struct st_fragment_program *)fp;
 111 }
 112
 113
 114 static inline struct st_vertex_program *
 115 st_vertex_program( struct gl_vertex_program *vp )
 116 {
 117    return (struct st_vertex_program *)vp;
 118 }
 119
 120
 121 extern const struct cso_fragment_shader *
 122 st_translate_fragment_program(struct st_context *st,
 123                               struct st_fragment_program *fp,
 124                               const GLuint inputMapping[],
 125                               struct tgsi_token *tokens,
 126                               GLuint maxTokens);
 127
 128
 129 extern const struct cso_vertex_shader *
 130 st_translate_vertex_program(struct st_context *st,
 131                             struct st_vertex_program *vp,
 132                             const GLuint vert_output_to_slot[],
 133                             struct tgsi_token *tokens,
 134                             GLuint maxTokens);
 135
 136 #endif