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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2008 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. #ifndef TGSI_INFO_H
  29. #define TGSI_INFO_H
  30.  
  31. #include "pipe/p_compiler.h"
  32. #include "pipe/p_shader_tokens.h"
  33. #include "util/u_format.h"
  34.  
  35. #if defined __cplusplus
  36. extern "C" {
  37. #endif
  38.  
  39. /* This enum describes how an opcode calculates its result. */
  40. enum tgsi_output_mode {
  41.    /** The opcode produces no result. */
  42.    TGSI_OUTPUT_NONE            = 0,
  43.  
  44.    /** When this opcode writes to a channel of the destination register,
  45.     *  it takes as arguments values from the same channel of the source
  46.     *  register(s).
  47.     *
  48.     *  Example: TGSI_OPCODE_ADD
  49.     */
  50.    TGSI_OUTPUT_COMPONENTWISE   = 1,
  51.  
  52.    /** This opcode writes the same value to all enabled channels of the
  53.     * destination register.
  54.     *
  55.     *  Example: TGSI_OPCODE_RSQ
  56.     */
  57.    TGSI_OUTPUT_REPLICATE       = 2,
  58.  
  59.    /** The operation performed by this opcode is dependent on which channel
  60.     *  of the destination register is being written.
  61.     *
  62.     *  Example: TGSI_OPCODE_LOG
  63.     */
  64.    TGSI_OUTPUT_CHAN_DEPENDENT  = 3,
  65.  
  66.    /**
  67.     * Example: TGSI_OPCODE_TEX
  68.     */
  69.    TGSI_OUTPUT_OTHER           = 4
  70. };
  71.  
  72. struct tgsi_opcode_info
  73. {
  74.    unsigned num_dst:3;
  75.    unsigned num_src:3;
  76.    unsigned is_tex:1;
  77.    unsigned is_branch:1;
  78.    int pre_dedent:2;
  79.    int post_indent:2;
  80.    enum tgsi_output_mode output_mode:3;
  81.    const char *mnemonic;
  82.    uint opcode;
  83. };
  84.  
  85. const struct tgsi_opcode_info *
  86. tgsi_get_opcode_info( uint opcode );
  87.  
  88. const char *
  89. tgsi_get_opcode_name( uint opcode );
  90.  
  91. const char *
  92. tgsi_get_processor_name( uint processor );
  93.  
  94. enum tgsi_opcode_type {
  95.    TGSI_TYPE_UNTYPED, /* for MOV */
  96.    TGSI_TYPE_VOID,
  97.    TGSI_TYPE_UNSIGNED,
  98.    TGSI_TYPE_SIGNED,
  99.    TGSI_TYPE_FLOAT,
  100.    TGSI_TYPE_DOUBLE
  101. };
  102.  
  103. enum tgsi_opcode_type
  104. tgsi_opcode_infer_src_type( uint opcode );
  105.  
  106. enum tgsi_opcode_type
  107. tgsi_opcode_infer_dst_type( uint opcode );
  108.  
  109. #if defined __cplusplus
  110. }
  111. #endif
  112.  
  113. #endif /* TGSI_INFO_H */
  114.