src/glsl/pp/sl_pp_context.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 VMware, Inc.
   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
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  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
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  25  *
  26  **************************************************************************/
  27
  28 #ifndef SL_PP_CONTEXT_H
  29 #define SL_PP_CONTEXT_H
  30
  31 #include "sl_pp_dict.h"
  32 #include "sl_pp_macro.h"
  33 #include "sl_pp_process.h"
  34 #include "sl_pp_purify.h"
  35 #include "sl_pp_token_util.h"
  36
  37
  38 #define SL_PP_MAX_IF_NESTING  64
  39
  40 #define SL_PP_MAX_ERROR_MSG   1024
  41
  42 #define SL_PP_MAX_EXTENSIONS  16
  43
  44 #define SL_PP_MAX_PREDEFINED  16
  45
  46 struct sl_pp_extension {
  47    int name;   /*< GL_VENDOR_extension_name */
  48 };
  49
  50 struct sl_pp_predefined {
  51    int name;
  52    int value;
  53 };
  54
  55 union sl_pp_if_state {
  56    struct {
  57       unsigned int condition:1;
  58       unsigned int went_thru_else:1;
  59       unsigned int had_true_cond:1;
  60    } u;
  61    unsigned int value;
  62 };
  63
  64 struct sl_pp_context {
  65    char *cstr_pool;
  66    unsigned int cstr_pool_max;
  67    unsigned int cstr_pool_len;
  68    struct sl_pp_dict dict;
  69
  70    struct sl_pp_macro *macro;
  71    struct sl_pp_macro **macro_tail;
  72
  73    struct sl_pp_extension extensions[SL_PP_MAX_EXTENSIONS];
  74    unsigned int num_extensions;
  75
  76    struct sl_pp_predefined predefined[SL_PP_MAX_PREDEFINED];
  77    unsigned int num_predefined;
  78
  79    union sl_pp_if_state if_stack[SL_PP_MAX_IF_NESTING];
  80    unsigned int if_ptr;
  81    unsigned int if_value;
  82
  83    char error_msg[SL_PP_MAX_ERROR_MSG];
  84    unsigned int error_line;
  85
  86    unsigned int line;
  87    unsigned int file;
  88
  89    struct sl_pp_purify_state pure;
  90
  91    char *getc_buf;
  92    unsigned int getc_buf_size;
  93    unsigned int getc_buf_capacity;
  94
  95    struct sl_pp_token_buffer tokens;
  96
  97    struct sl_pp_process_state process_state;
  98 };
  99
 100 #endif /* SL_PP_CONTEXT_H */