src/mesa/shader/slang/slang_assemble.h

   1 /*
   2  * Mesa 3-D graphics library
   3  * Version:  6.5
   4  *
   5  * Copyright (C) 2005-2006  Brian Paul   All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the "Software"),
   9  * to deal in the Software without restriction, including without limitation
  10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  11  * and/or sell copies of the Software, and to permit persons to whom the
  12  * Software is furnished to do so, subject to the following conditions:
  13  *
  14  * The above copyright notice and this permission notice shall be included
  15  * in all copies or substantial portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  21  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  22  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #if !defined SLANG_ASSEMBLE_H
  26 #define SLANG_ASSEMBLE_H
  27
  28 #include "slang_compile.h"
  29
  30 #if defined __cplusplus
  31 extern "C" {
  32 #endif
  33
  34 typedef enum slang_assembly_type_
  35 {
  36         /* core */
  37         slang_asm_none,
  38         slang_asm_float_copy,
  39         slang_asm_float_move,
  40         slang_asm_float_push,
  41         slang_asm_float_deref,
  42         slang_asm_float_add,
  43         slang_asm_float_multiply,
  44         slang_asm_float_divide,
  45         slang_asm_float_negate,
  46         slang_asm_float_less,
  47         slang_asm_float_equal_exp,
  48         slang_asm_float_equal_int,
  49         slang_asm_float_to_int,
  50         slang_asm_float_sine,
  51         slang_asm_float_arcsine,
  52         slang_asm_float_arctan,
  53         slang_asm_float_power,
  54         slang_asm_float_log2,
  55         slang_asm_float_floor,
  56         slang_asm_float_ceil,
  57         slang_asm_int_copy,
  58         slang_asm_int_move,
  59         slang_asm_int_push,
  60         slang_asm_int_deref,
  61         slang_asm_int_to_float,
  62         slang_asm_int_to_addr,
  63         slang_asm_bool_copy,
  64         slang_asm_bool_move,
  65         slang_asm_bool_push,
  66         slang_asm_bool_deref,
  67         slang_asm_addr_copy,
  68         slang_asm_addr_push,
  69         slang_asm_addr_deref,
  70         slang_asm_addr_add,
  71         slang_asm_addr_multiply,
  72         slang_asm_jump,
  73         slang_asm_jump_if_zero,
  74         slang_asm_enter,
  75         slang_asm_leave,
  76         slang_asm_local_alloc,
  77         slang_asm_local_free,
  78         slang_asm_local_addr,
  79         slang_asm_call,
  80         slang_asm_return,
  81         slang_asm_discard,
  82         slang_asm_exit,
  83         /* mesa-specific extensions */
  84         slang_asm_float_print,
  85         slang_asm_int_print,
  86         slang_asm_bool_print,
  87         slang_asm__last
  88 } slang_assembly_type;
  89
  90 typedef struct slang_assembly_
  91 {
  92         slang_assembly_type type;
  93         GLfloat literal;
  94         GLuint param[2];
  95 } slang_assembly;
  96
  97 typedef struct slang_assembly_file_
  98 {
  99         slang_assembly *code;
 100         unsigned int count;
 101         unsigned int capacity;
 102 } slang_assembly_file;
 103
 104 int slang_assembly_file_construct (slang_assembly_file *);
 105 void slang_assembly_file_destruct (slang_assembly_file *);
 106 int slang_assembly_file_push (slang_assembly_file *, slang_assembly_type);
 107 int slang_assembly_file_push_label (slang_assembly_file *, slang_assembly_type, GLuint);
 108 int slang_assembly_file_push_label2 (slang_assembly_file *, slang_assembly_type, GLuint, GLuint);
 109 int slang_assembly_file_push_literal (slang_assembly_file *, slang_assembly_type, GLfloat);
 110
 111 typedef struct slang_assembly_file_restore_point_
 112 {
 113         unsigned int count;
 114 } slang_assembly_file_restore_point;
 115
 116 int slang_assembly_file_restore_point_save (slang_assembly_file *,
 117         slang_assembly_file_restore_point *);
 118 int slang_assembly_file_restore_point_load (slang_assembly_file *,
 119         slang_assembly_file_restore_point *);
 120
 121 typedef struct slang_assembly_flow_control_
 122 {
 123         unsigned int loop_start;                        /* for "continue" statement */
 124         unsigned int loop_end;                          /* for "break" statement */
 125         unsigned int function_end;                      /* for "return" statement */
 126 } slang_assembly_flow_control;
 127
 128 typedef struct slang_assembly_local_info_
 129 {
 130         unsigned int ret_size;
 131         unsigned int addr_tmp;
 132         unsigned int swizzle_tmp;
 133 } slang_assembly_local_info;
 134
 135 typedef enum
 136 {
 137         slang_ref_force,
 138         slang_ref_forbid,
 139         slang_ref_freelance
 140 } slang_ref_type;
 141
 142 /*
 143         holds a complete information about vector swizzle - the <swizzle> array contains
 144         vector component sources indices, where 0 is "x", 1 is "y", ...
 145         example: "xwz" --> { 3, { 0, 3, 2, n/u } }
 146 */
 147 typedef struct slang_swizzle_
 148 {
 149         unsigned int num_components;
 150         unsigned int swizzle[4];
 151 } slang_swizzle;
 152
 153 typedef struct slang_assembly_stack_info_
 154 {
 155         slang_swizzle swizzle;
 156 } slang_assembly_stack_info;
 157
 158 typedef struct slang_assembly_name_space_
 159 {
 160         struct slang_function_scope_ *funcs;
 161         struct slang_struct_scope_ *structs;
 162         struct slang_variable_scope_ *vars;
 163 } slang_assembly_name_space;
 164
 165 typedef struct slang_assemble_ctx_
 166 {
 167         slang_assembly_file *file;
 168         struct slang_machine_ *mach;
 169         slang_atom_pool *atoms;
 170         slang_assembly_name_space space;
 171         slang_assembly_flow_control flow;
 172         slang_assembly_local_info local;
 173         slang_ref_type ref;
 174         slang_assembly_stack_info swz;
 175 } slang_assemble_ctx;
 176
 177 slang_function *_slang_locate_function (slang_function_scope *funcs, slang_atom a_name,
 178         slang_operation *params, unsigned int num_params, slang_assembly_name_space *space,
 179         slang_atom_pool *);
 180
 181 int _slang_assemble_function (slang_assemble_ctx *, struct slang_function_ *);
 182
 183 int _slang_cleanup_stack (slang_assembly_file *, slang_operation *, int ref,
 184         slang_assembly_name_space *, struct slang_machine_ *, slang_atom_pool *);
 185 int _slang_cleanup_stack_ (slang_assemble_ctx *, slang_operation *);
 186
 187 int _slang_dereference (slang_assembly_file *, slang_operation *, slang_assembly_name_space *,
 188         slang_assembly_local_info *, struct slang_machine_ *, slang_atom_pool *);
 189
 190 int _slang_assemble_function_call (slang_assemble_ctx *, slang_function *,
 191         slang_operation *, GLuint, GLboolean);
 192
 193 int _slang_assemble_function_call_name (slang_assemble_ctx *, const char *,
 194         slang_operation *, GLuint, GLboolean);
 195
 196 int _slang_assemble_operation (slang_assembly_file *, struct slang_operation_ *, int reference,
 197         slang_assembly_flow_control *, slang_assembly_name_space *, slang_assembly_local_info *,
 198         slang_assembly_stack_info *, struct slang_machine_ *, slang_atom_pool *);
 199 int _slang_assemble_operation_ (slang_assemble_ctx *, struct slang_operation_ *, slang_ref_type);
 200
 201 #ifdef __cplusplus
 202 }
 203 #endif
 204
 205 #endif
 206