#!/usr/bin/env python3
 
 '''
 Generates lv_conf_internal.h from lv_conf_template.h to provide default values
 '''
 
 import os
 import sys
 import re
 
 SCRIPT_DIR = os.path.dirname(__file__)
 LV_CONF_TEMPLATE = os.path.join(SCRIPT_DIR, "..", "lv_conf_template.h")
 LV_CONF_INTERNAL = os.path.join(SCRIPT_DIR, "..", "src", "lv_conf_internal.h")
 
 if sys.version_info < (3,6,0):
   print("Python >=3.6 is required", file=sys.stderr)
   exit(1)
 
 fin = open(LV_CONF_TEMPLATE)
 fout = open(LV_CONF_INTERNAL, "w")
 
 fout.write(
 '''/**
  * GENERATED FILE, DO NOT EDIT IT!
  * @file lv_conf_internal.h
  * Make sure all the defines of lv_conf.h have a default value
 **/
 
 #ifndef LV_CONF_INTERNAL_H
 #define LV_CONF_INTERNAL_H
 /* clang-format off */
 
 #include <stdint.h>
 
 /* Handle special Kconfig options */
 #ifndef LV_KCONFIG_IGNORE
     #include "lv_conf_kconfig.h"
     #ifdef CONFIG_LV_CONF_SKIP
         #define LV_CONF_SKIP
     #endif
 #endif
 
 /*If "lv_conf.h" is available from here try to use it later.*/
 #ifdef __has_include
     #if __has_include("lv_conf.h")
         #ifndef LV_CONF_INCLUDE_SIMPLE
             #define LV_CONF_INCLUDE_SIMPLE
         #endif
     #endif
 #endif
 
 /*If lv_conf.h is not skipped include it*/
 #ifndef LV_CONF_SKIP
     #ifdef LV_CONF_PATH                           /*If there is a path defined for lv_conf.h use it*/
         #define __LV_TO_STR_AUX(x) #x
         #define __LV_TO_STR(x) __LV_TO_STR_AUX(x)
         #include __LV_TO_STR(LV_CONF_PATH)
         #undef __LV_TO_STR_AUX
         #undef __LV_TO_STR
     #elif defined(LV_CONF_INCLUDE_SIMPLE)         /*Or simply include lv_conf.h is enabled*/
         #include "lv_conf.h"
     #else
         #include "../../lv_conf.h"                /*Else assume lv_conf.h is next to the lvgl folder*/
     #endif
     #if !defined(LV_CONF_H) && !defined(LV_CONF_SUPPRESS_DEFINE_CHECK)
         /* #include will sometimes silently fail when __has_include is used */
         /* https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80753 */
         #pragma message("Possible failure to include lv_conf.h, please read the comment in this file if you get errors")
     #endif
 #endif
 
 #ifdef CONFIG_LV_COLOR_DEPTH
     #define _LV_KCONFIG_PRESENT
 #endif
 
 /*----------------------------------
  * Start parsing lv_conf_template.h
  -----------------------------------*/
 '''
 )
 
 started = 0
 
 for line in fin.read().splitlines():
   if not started:
     if '#define LV_CONF_H' in line:
       started = 1
       continue
     else:
       continue
 
   if '/*--END OF LV_CONF_H--*/' in line: break
 
   #Is there a #define in this line?
   r = re.search(r'^([\s]*)#[\s]*define[\s]+([^\s]+).*$', line)   # \s means any white space character
 
   if r:
     indent = r[1]
 
     name = r[2]
     name = re.sub('\(.*?\)', '', name, 1)    #remove parentheses from macros. E.g. MY_FUNC(5) -> MY_FUNC
 
     name_and_value = re.sub('[\s]*#[\s]*define', '', line, 1)
 
     #If the value should be 1 (enabled) by default use a more complex structure for Kconfig checks because
     #if a not defined CONFIG_... value should be interpreted as 0 and not the LVGL default
     is_one = re.search(r'[\s]*#[\s]*define[\s]*[A-Z0-9_]+[\s]+1([\s]*$|[\s]+)', line)
     if is_one:
       #1. Use the value if already set from lv_conf.h or anything else (i.e. do nothing)
       #2. In Kconfig environment use the CONFIG_... value if set, else use 0
       #3. In not Kconfig environment use the LVGL's default value
 
       fout.write(
         f'{indent}#ifndef {name}\n'
         f'{indent}    #ifdef _LV_KCONFIG_PRESENT\n'
         f'{indent}        #ifdef CONFIG_{name.upper()}\n'
         f'{indent}            #define {name} CONFIG_{name.upper()}\n'
         f'{indent}        #else\n'
         f'{indent}            #define {name} 0\n'
         f'{indent}        #endif\n'
         f'{indent}    #else\n'
         f'{indent}        #define{name_and_value}\n'
         f'{indent}    #endif\n'
         f'{indent}#endif\n'
       )
     else:
       #1. Use the value if already set from lv_conf.h or anything else  (i.e. do nothing)
       #2. Use the Kconfig value if set
       #3. Use the LVGL's default value
 
       fout.write(
         f'{indent}#ifndef {name}\n'
         f'{indent}    #ifdef CONFIG_{name.upper()}\n'
         f'{indent}        #define {name} CONFIG_{name.upper()}\n'
         f'{indent}    #else\n'
         f'{indent}        #define{name_and_value}\n'
         f'{indent}    #endif\n'
         f'{indent}#endif\n'
       )
 
   elif re.search('^ *typedef .*;.*$', line):
     continue   #ignore typedefs to avoid redeclaration
   else:
     fout.write(f'{line}\n')
 
 fout.write(
 '''
 
 /*----------------------------------
  * End of parsing lv_conf_template.h
  -----------------------------------*/
 
 LV_EXPORT_CONST_INT(LV_DPI_DEF);
 
 #undef _LV_KCONFIG_PRESENT
 
 
 /*Set some defines if a dependency is disabled*/
 #if LV_USE_LOG == 0
     #define LV_LOG_LEVEL            LV_LOG_LEVEL_NONE
     #define LV_LOG_TRACE_MEM        0
     #define LV_LOG_TRACE_TIMER      0
     #define LV_LOG_TRACE_INDEV      0
     #define LV_LOG_TRACE_DISP_REFR  0
     #define LV_LOG_TRACE_EVENT      0
     #define LV_LOG_TRACE_OBJ_CREATE 0
     #define LV_LOG_TRACE_LAYOUT     0
     #define LV_LOG_TRACE_ANIM       0
 #endif  /*LV_USE_LOG*/
 
 
 /*If running without lv_conf.h add typedefs with default value*/
 #ifdef LV_CONF_SKIP
     #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)    /*Disable warnings for Visual Studio*/
         #define _CRT_SECURE_NO_WARNINGS
     #endif
 #endif  /*defined(LV_CONF_SKIP)*/
 
 #endif  /*LV_CONF_INTERNAL_H*/
 '''
 )
 
 fin.close()
 fout.close()

© 2023 acidvegas, inc • generated with stagit