1#!/usr/bin/env python3
2
3'''
4Generates lv_conf_internal.h from lv_conf_template.h to provide default values
5'''
6
7import os
8import sys
9import re
10
11SCRIPT_DIR = os.path.dirname(__file__)
12LV_CONF_TEMPLATE = os.path.join(SCRIPT_DIR, "..", "lv_conf_template.h")
13LV_CONF_INTERNAL = os.path.join(SCRIPT_DIR, "..", "src", "lv_conf_internal.h")
14
15if sys.version_info < (3,6,0):
16  print("Python >=3.6 is required", file=sys.stderr)
17  exit(1)
18
19fin = open(LV_CONF_TEMPLATE)
20fout = open(LV_CONF_INTERNAL, "w")
21
22fout.write(
23'''/**
24 * GENERATED FILE, DO NOT EDIT IT!
25 * @file lv_conf_internal.h
26 * Make sure all the defines of lv_conf.h have a default value
27**/
28
29#ifndef LV_CONF_INTERNAL_H
30#define LV_CONF_INTERNAL_H
31/* clang-format off */
32
33#include <stdint.h>
34
35/* Handle special Kconfig options */
36#ifndef LV_KCONFIG_IGNORE
37    #include "lv_conf_kconfig.h"
38    #ifdef CONFIG_LV_CONF_SKIP
39        #define LV_CONF_SKIP
40    #endif
41#endif
42
43/*If "lv_conf.h" is available from here try to use it later.*/
44#ifdef __has_include
45    #if __has_include("lv_conf.h")
46        #ifndef LV_CONF_INCLUDE_SIMPLE
47            #define LV_CONF_INCLUDE_SIMPLE
48        #endif
49    #endif
50#endif
51
52/*If lv_conf.h is not skipped include it*/
53#ifndef LV_CONF_SKIP
54    #ifdef LV_CONF_PATH                           /*If there is a path defined for lv_conf.h use it*/
55        #define __LV_TO_STR_AUX(x) #x
56        #define __LV_TO_STR(x) __LV_TO_STR_AUX(x)
57        #include __LV_TO_STR(LV_CONF_PATH)
58        #undef __LV_TO_STR_AUX
59        #undef __LV_TO_STR
60    #elif defined(LV_CONF_INCLUDE_SIMPLE)         /*Or simply include lv_conf.h is enabled*/
61        #include "lv_conf.h"
62    #else
63        #include "../../lv_conf.h"                /*Else assume lv_conf.h is next to the lvgl folder*/
64    #endif
65    #if !defined(LV_CONF_H) && !defined(LV_CONF_SUPPRESS_DEFINE_CHECK)
66        /* #include will sometimes silently fail when __has_include is used */
67        /* https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80753 */
68        #pragma message("Possible failure to include lv_conf.h, please read the comment in this file if you get errors")
69    #endif
70#endif
71
72#ifdef CONFIG_LV_COLOR_DEPTH
73    #define _LV_KCONFIG_PRESENT
74#endif
75
76/*----------------------------------
77 * Start parsing lv_conf_template.h
78 -----------------------------------*/
79'''
80)
81
82started = 0
83
84for line in fin.read().splitlines():
85  if not started:
86    if '#define LV_CONF_H' in line:
87      started = 1
88      continue
89    else:
90      continue
91
92  if '/*--END OF LV_CONF_H--*/' in line: break
93
94  #Is there a #define in this line?
95  r = re.search(r'^([\s]*)#[\s]*(undef|define)[\s]+([^\s]+).*$', line)   # \s means any white space character
96
97  if r:
98    indent = r[1]
99
100    name = r[3]
101    name = re.sub('\(.*?\)', '', name, 1)    #remove parentheses from macros. E.g. MY_FUNC(5) -> MY_FUNC
102
103    line = re.sub('[\s]*', '', line, 1)
104
105    #If the value should be 1 (enabled) by default use a more complex structure for Kconfig checks because
106    #if a not defined CONFIG_... value should be interpreted as 0 and not the LVGL default
107    is_one = re.search(r'#[\s]*define[\s]*[A-Z0-9_]+[\s]+1([\s]*$|[\s]+)', line)
108    if is_one:
109      #1. Use the value if already set from lv_conf.h or anything else (i.e. do nothing)
110      #2. In Kconfig environment use the CONFIG_... value if set, else use 0
111      #3. In not Kconfig environment use the LVGL's default value
112
113      fout.write(
114        f'{indent}#ifndef {name}\n'
115        f'{indent}    #ifdef _LV_KCONFIG_PRESENT\n'
116        f'{indent}        #ifdef CONFIG_{name.upper()}\n'
117        f'{indent}            #define {name} CONFIG_{name.upper()}\n'
118        f'{indent}        #else\n'
119        f'{indent}            #define {name} 0\n'
120        f'{indent}        #endif\n'
121        f'{indent}    #else\n'
122        f'{indent}        {line}\n'
123        f'{indent}    #endif\n'
124        f'{indent}#endif\n'
125      )
126    else:
127      #1. Use the value if already set from lv_conf.h or anything else  (i.e. do nothing)
128      #2. Use the Kconfig value if set
129      #3. Use the LVGL's default value
130
131      fout.write(
132        f'{indent}#ifndef {name}\n'
133        f'{indent}    #ifdef CONFIG_{name.upper()}\n'
134        f'{indent}        #define {name} CONFIG_{name.upper()}\n'
135        f'{indent}    #else\n'
136        f'{indent}        {line}\n'
137        f'{indent}    #endif\n'
138        f'{indent}#endif\n'
139      )
140
141  elif re.search('^ *typedef .*;.*$', line):
142    continue   #ignore typedefs to avoid redeclaration
143  else:
144    fout.write(f'{line}\n')
145
146fout.write(
147'''
148
149/*----------------------------------
150 * End of parsing lv_conf_template.h
151 -----------------------------------*/
152
153LV_EXPORT_CONST_INT(LV_DPI_DEF);
154
155#undef _LV_KCONFIG_PRESENT
156
157
158/*Set some defines if a dependency is disabled*/
159#if LV_USE_LOG == 0
160    #define LV_LOG_LEVEL            LV_LOG_LEVEL_NONE
161    #define LV_LOG_TRACE_MEM        0
162    #define LV_LOG_TRACE_TIMER      0
163    #define LV_LOG_TRACE_INDEV      0
164    #define LV_LOG_TRACE_DISP_REFR  0
165    #define LV_LOG_TRACE_EVENT      0
166    #define LV_LOG_TRACE_OBJ_CREATE 0
167    #define LV_LOG_TRACE_LAYOUT     0
168    #define LV_LOG_TRACE_ANIM       0
169#endif  /*LV_USE_LOG*/
170
171
172/*If running without lv_conf.h add typedefs with default value*/
173#ifdef LV_CONF_SKIP
174    #if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_WARNINGS)    /*Disable warnings for Visual Studio*/
175        #define _CRT_SECURE_NO_WARNINGS
176    #endif
177#endif  /*defined(LV_CONF_SKIP)*/
178
179#endif  /*LV_CONF_INTERNAL_H*/
180'''
181)
182
183fin.close()
184fout.close()
185