src/mesa/shader/slang/slang_assemble_constructor.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_CONSTRUCTOR_H
  26 #define SLANG_ASSEMBLE_CONSTRUCTOR_H
  27
  28 #if defined __cplusplus
  29 extern "C" {
  30 #endif
  31
  32 /*
  33  * Checks if a field selector is a general swizzle (an r-value swizzle with replicated
  34  * components or an l-value swizzle mask) for a vector.
  35  * Returns GL_TRUE if this is the case, <swz> is filled with swizzle information.
  36  * Returns GL_FALSE otherwise.
  37  */
  38 GLboolean _slang_is_swizzle (const char *field, GLuint rows, slang_swizzle *swz);
  39
  40 /*
  41  * Checks if a general swizzle is an l-value swizzle - these swizzles do not have
  42  * duplicated fields.
  43  * Returns GL_TRUE if this is a swizzle mask.
  44  * Returns GL_FALSE otherwise
  45  */
  46 GLboolean _slang_is_swizzle_mask (const slang_swizzle *swz, GLuint rows);
  47
  48 /*
  49  * Combines (multiplies) two swizzles to form single swizzle.
  50  * Example: "vec.wzyx.yx" --> "vec.zw".
  51  */
  52 GLvoid _slang_multiply_swizzles (slang_swizzle *, const slang_swizzle *, const slang_swizzle *);
  53
  54 GLboolean _slang_assemble_constructor (slang_assemble_ctx *, struct slang_operation_ *);
  55
  56 GLboolean _slang_assemble_constructor_from_swizzle (slang_assemble_ctx *, const slang_swizzle *,
  57         slang_type_specifier *, slang_type_specifier *);
  58
  59 #ifdef __cplusplus
  60 }
  61 #endif
  62
  63 #endif
  64