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  1. /**************************************************************************
  2.  *
  3.  * Copyright 2007 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_UTIL_H
  29. #define TGSI_UTIL_H
  30.  
  31. #if defined __cplusplus
  32. extern "C" {
  33. #endif
  34.  
  35. struct tgsi_src_register;
  36. struct tgsi_full_src_register;
  37. struct tgsi_full_instruction;
  38.  
  39. void *
  40. tgsi_align_128bit(
  41.    void *unaligned );
  42.  
  43. unsigned
  44. tgsi_util_get_src_register_swizzle(
  45.    const struct tgsi_src_register *reg,
  46.    unsigned component );
  47.  
  48.  
  49. unsigned
  50. tgsi_util_get_full_src_register_swizzle(
  51.    const struct tgsi_full_src_register *reg,
  52.    unsigned component );
  53.  
  54. void
  55. tgsi_util_set_src_register_swizzle(
  56.    struct tgsi_src_register *reg,
  57.    unsigned swizzle,
  58.    unsigned component );
  59.  
  60. #define TGSI_UTIL_SIGN_CLEAR    0   /* Force positive */
  61. #define TGSI_UTIL_SIGN_SET      1   /* Force negative */
  62. #define TGSI_UTIL_SIGN_TOGGLE   2   /* Negate */
  63. #define TGSI_UTIL_SIGN_KEEP     3   /* No change */
  64.  
  65. unsigned
  66. tgsi_util_get_full_src_register_sign_mode(
  67.    const struct tgsi_full_src_register *reg,
  68.    unsigned component );
  69.  
  70. void
  71. tgsi_util_set_full_src_register_sign_mode(
  72.    struct tgsi_full_src_register *reg,
  73.    unsigned sign_mode );
  74.  
  75. unsigned
  76. tgsi_util_get_inst_usage_mask(const struct tgsi_full_instruction *inst,
  77.                               unsigned src_idx);
  78.  
  79. struct tgsi_src_register
  80. tgsi_util_get_src_from_ind(const struct tgsi_ind_register *reg);
  81.  
  82. int
  83. tgsi_util_get_texture_coord_dim(int tgsi_tex, int *shadow_or_sample);
  84.  
  85. #if defined __cplusplus
  86. }
  87. #endif
  88.  
  89. #endif /* TGSI_UTIL_H */
  90.