src/glsl/pp/sl_pp_context.h

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