// logging functions
// ----------------------------------------------------------------------------
-#define DUPLICATE_LOG_OUT_TO_STDOUT TRUE
-#define DUPLICATE_LOG_ERR_TO_STDERR TRUE
+#define DUPLICATE_LOGGING_TO_STDOUT TRUE
#if defined(PLATFORM_ANDROID)
static void vprintf_log_nonewline(char *format, va_list ap)
{
- FILE *file = program.log_file[LOG_ERR_ID];
+ FILE *file = program.log_file;
-#if DUPLICATE_LOG_ERR_TO_STDERR
- if (file != program.log_file_default[LOG_ERR_ID])
+#if DUPLICATE_LOGGING_TO_STDOUT
+ if (file != program.log_file_default)
{
va_list ap2;
va_copy(ap2, ap);
- vfprintf(program.log_file_default[LOG_ERR_ID], format, ap2);
+ vfprintf(program.log_file_default, format, ap2);
va_end(ap2);
}
static void vprintf_log(char *format, va_list ap)
{
- FILE *file = program.log_file[LOG_ERR_ID];
+ FILE *file = program.log_file;
char *newline = STRING_NEWLINE;
-#if DUPLICATE_LOG_ERR_TO_STDERR
- if (file != program.log_file_default[LOG_ERR_ID])
+#if DUPLICATE_LOGGING_TO_STDOUT
+ if (file != program.log_file_default)
{
va_list ap2;
va_copy(ap2, ap);
- vfprintf(program.log_file_default[LOG_ERR_ID], format, ap2);
- fprintf(program.log_file_default[LOG_ERR_ID], "%s", newline);
+ vfprintf(program.log_file_default, format, ap2);
+ fprintf(program.log_file_default, "%s", newline);
va_end(ap2);
}
static void vPrint(char *format, va_list ap)
{
- FILE *file = program.log_file[LOG_OUT_ID];
+ FILE *file = program.log_file;
-#if DUPLICATE_LOG_OUT_TO_STDOUT
- if (file != program.log_file_default[LOG_OUT_ID])
+#if DUPLICATE_LOGGING_TO_STDOUT
+ if (file != program.log_file_default)
{
va_list ap2;
va_copy(ap2, ap);
- vfprintf(program.log_file_default[LOG_OUT_ID], format, ap2);
+ vfprintf(program.log_file_default, format, ap2);
va_end(ap2);
}
void PrintNoLog(char *format, ...)
{
- FILE *file = program.log_file_default[LOG_OUT_ID];
+ FILE *file = program.log_file_default;
va_list ap;
va_start(ap, format);
#define UUID_CHARS (UUID_BYTES * 2)
#define UUID_LENGTH (UUID_CHARS + 4)
-char *getUUID(void)
+static unsigned int uuid_random_function(int max)
+{
+ return GetBetterRandom(max);
+}
+
+char *getUUIDExt(unsigned int (*random_function)(int max))
{
static char uuid[UUID_LENGTH + 1];
int data[UUID_BYTES];
int i;
for (i = 0; i < UUID_BYTES; i++)
- data[i] = GetSimpleRandom(256);
+ data[i] = random_function(256);
data[6] = 0x40 | (data[6] & 0x0f);
data[8] = 0x80 | (data[8] & 0x3f);
return uuid;
}
+char *getUUID(void)
+{
+ return getUUIDExt(uuid_random_function);
+}
+
// ----------------------------------------------------------------------------
// counter functions
sleep_milliseconds(delay);
}
-boolean DelayReachedExt(unsigned int *counter_var, unsigned int delay,
- unsigned int actual_counter)
+boolean DelayReachedExt2(unsigned int *counter_var, unsigned int delay,
+ unsigned int actual_counter)
{
if (actual_counter >= *counter_var &&
actual_counter < *counter_var + delay)
return TRUE;
}
-boolean FrameReached(unsigned int *frame_counter_var, unsigned int frame_delay)
+boolean DelayReachedExt(DelayCounter *counter, unsigned int actual_counter)
{
- return DelayReachedExt(frame_counter_var, frame_delay, FrameCounter);
+ return DelayReachedExt2(&counter->count, counter->value, actual_counter);
}
-boolean DelayReached(unsigned int *counter_var, unsigned int delay)
+boolean FrameReached(DelayCounter *counter)
{
- return DelayReachedExt(counter_var, delay, Counter());
+ return DelayReachedExt(counter, FrameCounter);
}
-void ResetDelayCounterExt(unsigned int *counter_var,
- unsigned int actual_counter)
+boolean DelayReached(DelayCounter *counter)
{
- DelayReachedExt(counter_var, 0, actual_counter);
+ return DelayReachedExt(counter, Counter());
}
-void ResetFrameCounter(unsigned int *frame_counter_var)
+void ResetDelayCounterExt(DelayCounter *counter, unsigned int actual_counter)
{
- FrameReached(frame_counter_var, 0);
+ DelayReachedExt2(&counter->count, 0, actual_counter);
}
-void ResetDelayCounter(unsigned int *counter_var)
+void ResetFrameCounter(DelayCounter *counter)
{
- DelayReached(counter_var, 0);
+ ResetDelayCounterExt(counter, FrameCounter);
}
-int WaitUntilDelayReached(unsigned int *counter_var, unsigned int delay)
+void ResetDelayCounter(DelayCounter *counter)
{
+ ResetDelayCounterExt(counter, Counter());
+}
+
+int WaitUntilDelayReached(DelayCounter *counter)
+{
+ unsigned int *counter_var = &counter->count;
+ unsigned int delay = counter->value;
unsigned int actual_counter;
int skip_frames = 0;
return skip_frames;
}
-void SkipUntilDelayReached(unsigned int *counter_var, unsigned int delay,
+void SkipUntilDelayReached(DelayCounter *counter,
int *loop_var, int last_loop_value)
{
- int skip_frames = WaitUntilDelayReached(counter_var, delay);
+ int skip_frames = WaitUntilDelayReached(counter);
#if 0
#if DEBUG
if (skip_frames)
Debug("internal:SkipUntilDelayReached",
"%d: %d ms -> SKIP %d FRAME(S) [%d ms]",
- *loop_var, delay,
- skip_frames, skip_frames * delay);
+ *loop_var, counter->value,
+ skip_frames, skip_frames * counter->value);
else
Debug("internal:SkipUntilDelayReached",
"%d: %d ms",
- *loop_var, delay);
+ *loop_var, counter->value);
#endif
#endif
// random generator functions
// ----------------------------------------------------------------------------
-unsigned int init_random_number(int nr, int seed)
+static unsigned int init_random_number_ext(int nr, int seed)
{
if (seed == NEW_RANDOMIZE)
{
// default random seed
seed = (int)time(NULL); // seconds since the epoch
-#if !defined(PLATFORM_WIN32)
+#if !defined(PLATFORM_WINDOWS)
// add some more randomness
struct timeval current_time;
return (unsigned int) seed;
}
+static unsigned int prng_seed_gettimeofday(void)
+{
+ struct timeval current_time;
+
+ gettimeofday(¤t_time, NULL);
+
+ prng_seed_bytes(¤t_time, sizeof(current_time));
+
+ return 0;
+}
+
+unsigned int init_random_number(int nr, int seed)
+{
+ return (nr == RANDOM_BETTER ? prng_seed_gettimeofday() :
+ init_random_number_ext(nr, seed));
+}
+
+static unsigned int get_random_number_ext(int nr)
+{
+ return (nr == RANDOM_BETTER ? prng_get_uint() :
+ random_linux_libc(nr));
+}
+
unsigned int get_random_number(int nr, int max)
{
- return (max > 0 ? random_linux_libc(nr) % max : 0);
+ return (max > 0 ? get_random_number_ext(nr) % max : 0);
}
{
static char *login_name = NULL;
-#if defined(PLATFORM_WIN32)
+#if defined(PLATFORM_WINDOWS)
if (login_name == NULL)
{
unsigned long buffer_size = MAX_USERNAME_LEN + 1;
{
static char *real_name = NULL;
-#if defined(PLATFORM_WIN32)
+#if defined(PLATFORM_WINDOWS)
if (real_name == NULL)
{
static char buffer[MAX_USERNAME_LEN + 1];
// various string functions
// ----------------------------------------------------------------------------
-char *getStringCat2WithSeparator(char *s1, char *s2, char *sep)
+char *getStringCat2WithSeparator(const char *s1,
+ const char *s2,
+ const char *sep)
{
if (s1 == NULL || s2 == NULL || sep == NULL)
return NULL;
return complete_string;
}
-char *getStringCat3WithSeparator(char *s1, char *s2, char *s3, char *sep)
+char *getStringCat3WithSeparator(const char *s1,
+ const char *s2,
+ const char *s3,
+ const char *sep)
{
if (s1 == NULL || s2 == NULL || s3 == NULL || sep == NULL)
return NULL;
return complete_string;
}
-char *getStringCat2(char *s1, char *s2)
+char *getStringCat2(const char *s1, const char *s2)
{
return getStringCat2WithSeparator(s1, s2, "");
}
-char *getStringCat3(char *s1, char *s2, char *s3)
+char *getStringCat3(const char *s1, const char *s2, const char *s3)
{
return getStringCat3WithSeparator(s1, s2, s3, "");
}
-char *getPath2(char *path1, char *path2)
+char *getPath2(const char *path1, const char *path2)
{
#if defined(PLATFORM_ANDROID)
// workaround for reading from assets directory -- skip "." subdirs in path
return getStringCat2WithSeparator(path1, path2, STRING_PATH_SEPARATOR);
}
-char *getPath3(char *path1, char *path2, char *path3)
+char *getPath3(const char *path1, const char *path2, const char *path3)
{
#if defined(PLATFORM_ANDROID)
// workaround for reading from assets directory -- skip "." subdirs in path
return filename;
}
-char *getImg2(char *path1, char *path2)
+char *getImg2(const char *path1, const char *path2)
{
return getPngOrPcxIfNotExists(getPath2(path1, path2));
}
-char *getImg3(char *path1, char *path2, char *path3)
+char *getImg3(const char *path1, const char *path2, const char *path3)
{
return getPngOrPcxIfNotExists(getPath3(path1, path2, path3));
}
return s_copy;
}
-void setString(char **old_value, char *new_value)
+void setString(char **old_value, const char *new_value)
{
checked_free(*old_value);
*old_value = getStringCopy(new_value);
}
-boolean strEqual(char *s1, char *s2)
+boolean strEqual(const char *s1, const char *s2)
{
return (s1 == NULL && s2 == NULL ? TRUE :
s1 == NULL && s2 != NULL ? FALSE :
strcmp(s1, s2) == 0);
}
-boolean strEqualN(char *s1, char *s2, int n)
+boolean strEqualN(const char *s1, const char *s2, int n)
{
return (s1 == NULL && s2 == NULL ? TRUE :
s1 == NULL && s2 != NULL ? FALSE :
strncmp(s1, s2, n) == 0);
}
-boolean strEqualCase(char *s1, char *s2)
+boolean strEqualCase(const char *s1, const char *s2)
{
return (s1 == NULL && s2 == NULL ? TRUE :
s1 == NULL && s2 != NULL ? FALSE :
strcasecmp(s1, s2) == 0);
}
-boolean strEqualCaseN(char *s1, char *s2, int n)
+boolean strEqualCaseN(const char *s1, const char *s2, int n)
{
return (s1 == NULL && s2 == NULL ? TRUE :
s1 == NULL && s2 != NULL ? FALSE :
strncasecmp(s1, s2, n) == 0);
}
-boolean strPrefix(char *s, char *prefix)
+boolean strPrefix(const char *s, const char *prefix)
{
return (s == NULL && prefix == NULL ? TRUE :
s == NULL && prefix != NULL ? FALSE :
strncmp(s, prefix, strlen(prefix)) == 0);
}
-boolean strSuffix(char *s, char *suffix)
+boolean strSuffix(const char *s, const char *suffix)
{
return (s == NULL && suffix == NULL ? TRUE :
s == NULL && suffix != NULL ? FALSE :
strcmp(&s[strlen(s) - strlen(suffix)], suffix) == 0);
}
-boolean strPrefixLower(char *s, char *prefix)
+boolean strPrefixLower(const char *s, const char *prefix)
{
char *s_lower = getStringToLower(s);
boolean match = strPrefix(s_lower, prefix);
return match;
}
-boolean strSuffixLower(char *s, char *suffix)
+boolean strSuffixLower(const char *s, const char *suffix)
{
char *s_lower = getStringToLower(s);
boolean match = strSuffix(s_lower, suffix);
return match;
}
+boolean isURL(const char *s)
+{
+ while (*s && *s >= 'a' && *s <= 'z')
+ s++;
+
+ return strPrefix(s, "://");
+}
+
// ----------------------------------------------------------------------------
// command line option handling functions
options.special_flags = NULL;
options.debug_mode = NULL;
options.player_name = NULL;
+ options.identifier = NULL;
+ options.level_nr = NULL;
+
+ options.display_nr = 0;
options.mytapes = FALSE;
options.serveronly = FALSE;
if (option_arg == next_option)
options_left++;
}
+ else if (strncmp(option, "-identifier", option_len) == 0)
+ {
+ if (option_arg == NULL)
+ FailWithHelp("option '%s' requires an argument", option_str);
+
+ options.identifier = getStringCopy(option_arg);
+ if (option_arg == next_option)
+ options_left++;
+ }
+ else if (strncmp(option, "-level-nr", option_len) == 0)
+ {
+ if (option_arg == NULL)
+ FailWithHelp("option '%s' requires an argument", option_str);
+
+ options.level_nr = getStringCopy(option_arg);
+ if (option_arg == next_option)
+ options_left++;
+ }
else if (strncmp(option, "-verbose", option_len) == 0)
{
options.verbose = TRUE;
if (option_arg == next_option)
options_left++;
}
-#if defined(PLATFORM_MACOSX)
+ else if (strncmp(option, "-display", option_len) == 0)
+ {
+ if (option_arg == NULL)
+ FailWithHelp("option '%s' requires an argument", option_str);
+
+ if (option_arg == next_option)
+ options_left++;
+
+ int display_nr = atoi(option_arg);
+
+#if 1
+ // dirty hack: SDL_GetNumVideoDisplays() seems broken on some systems
+ options.display_nr = display_nr;
+#else
+ options.display_nr =
+ MAX(0, MIN(display_nr, SDL_GetNumVideoDisplays() - 1));
+
+ if (display_nr != options.display_nr)
+ Warn("invalid display %d -- using display %d",
+ display_nr, options.display_nr);
+#endif
+ }
+#if defined(PLATFORM_MAC)
else if (strPrefix(option, "-psn"))
{
// ignore process serial number when launched via GUI on Mac OS X
void clear_mem(void *ptr, unsigned int size)
{
-#if defined(PLATFORM_WIN32)
+#if defined(PLATFORM_WINDOWS)
// for unknown reason, memset() sometimes crashes when compiled with MinGW
char *cptr = (char *)ptr;
*y2 = help_y;
}
+int get_number_of_bits(int bits)
+{
+ /*
+ Counting bits set, Brian Kernighan's way
+
+ Brian Kernighan's method goes through as many iterations as there are set
+ bits. So if we have a 32-bit word with only the high bit set, then it will
+ only go once through the loop.
+
+ Published in 1988, the C Programming Language 2nd Ed. (by Brian W. Kernighan
+ and Dennis M. Ritchie) mentions this in exercise 2-9.
+ First published by Peter Wegner in CACM 3 (1960), 322.
+ */
+
+ int num_bits = 0;
+
+ while (bits)
+ {
+ bits &= bits - 1; // clear the least significant bit set
+ num_bits++;
+ }
+
+ return num_bits;
+}
+
/* the "put" variants of the following file access functions check for the file
pointer being != NULL and return the number of bytes they have or would have
written; this allows for chunk writing functions to first determine the size
return latin1;
}
+int getTextEncoding(char *text)
+{
+ unsigned char *src = (unsigned char *)text;
+ int encoding = TEXT_ENCODING_ASCII; // default: assume encoding is ASCII
+
+ while (*src)
+ {
+ if (*src >= 128)
+ encoding = TEXT_ENCODING_UTF_8; // non-ASCII character: assume UTF-8
+
+ if (*src < 128)
+ {
+ src++;
+ }
+ else if (src[0] >= 192 && src[0] < 224 &&
+ src[1] >= 128 && src[1] < 192)
+ {
+ src += 2;
+ }
+ else if (src[0] >= 224 && src[0] < 240 &&
+ src[1] >= 128 && src[1] < 192 &&
+ src[2] >= 128 && src[2] < 192)
+ {
+ src += 3;
+ }
+ else if (src[0] >= 240 && src[0] < 248 &&
+ src[1] >= 128 && src[1] < 192 &&
+ src[2] >= 128 && src[2] < 192 &&
+ src[3] >= 128 && src[3] < 192)
+ {
+ src += 4;
+ }
+ else if (src[0] >= 248 && src[0] < 252 &&
+ src[1] >= 128 && src[1] < 192 &&
+ src[2] >= 128 && src[2] < 192 &&
+ src[3] >= 128 && src[3] < 192 &&
+ src[4] >= 128 && src[4] < 192)
+ {
+ src += 5;
+ }
+ else if (src[0] >= 252 && src[0] < 254 &&
+ src[1] >= 128 && src[1] < 192 &&
+ src[2] >= 128 && src[2] < 192 &&
+ src[3] >= 128 && src[3] < 192 &&
+ src[4] >= 128 && src[4] < 192 &&
+ src[5] >= 128 && src[5] < 192)
+ {
+ src += 6;
+ }
+ else
+ {
+ return TEXT_ENCODING_UNKNOWN; // non-UTF-8 character: unknown encoding
+ }
+ }
+
+ return encoding;
+}
+
// ----------------------------------------------------------------------------
// functions for JSON handling
int get_integer_from_string(char *s)
{
- static char *number_text[][3] =
- {
- { "0", "zero", "null", },
- { "1", "one", "first" },
- { "2", "two", "second" },
- { "3", "three", "third" },
- { "4", "four", "fourth" },
- { "5", "five", "fifth" },
- { "6", "six", "sixth" },
- { "7", "seven", "seventh" },
- { "8", "eight", "eighth" },
- { "9", "nine", "ninth" },
- { "10", "ten", "tenth" },
- { "11", "eleven", "eleventh" },
- { "12", "twelve", "twelfth" },
-
- { NULL, NULL, NULL },
- };
+ // check for the most common case first
+ if (s[0] >= '0' && s[0] <= '9')
+ return atoi(s);
- int i, j;
char *s_lower = getStringToLower(s);
int result = -1;
- for (i = 0; number_text[i][0] != NULL; i++)
- for (j = 0; j < 3; j++)
- if (strEqual(s_lower, number_text[i][j]))
- result = i;
-
- if (result == -1)
- {
- if (strEqual(s_lower, "false") ||
- strEqual(s_lower, "no") ||
- strEqual(s_lower, "off"))
- result = 0;
- else if (strEqual(s_lower, "true") ||
- strEqual(s_lower, "yes") ||
- strEqual(s_lower, "on"))
- result = 1;
- else
- result = atoi(s);
- }
+ if (strEqual(s_lower, "false") ||
+ strEqual(s_lower, "no") ||
+ strEqual(s_lower, "off"))
+ result = 0;
+ else if (strEqual(s_lower, "true") ||
+ strEqual(s_lower, "yes") ||
+ strEqual(s_lower, "on"))
+ result = 1;
+ else
+ result = atoi(s);
free(s_lower);
return 0;
}
+boolean touchFile(char *filename)
+{
+ FILE *file;
+
+ if (!(file = fopen(filename, MODE_WRITE)))
+ {
+ Warn("cannot touch file '%s'", filename);
+
+ return FALSE;
+ }
+
+ fclose(file);
+
+ return TRUE;
+}
+
// ----------------------------------------------------------------------------
// functions for directory handling
// functions for checking files and filenames
// ----------------------------------------------------------------------------
-boolean directoryExists(char *dir_name)
+boolean directoryExists(const char *dir_name)
{
if (dir_name == NULL)
return FALSE;
return success;
}
-boolean fileExists(char *filename)
+boolean fileExists(const char *filename)
{
if (filename == NULL)
return FALSE;
}
#if 0
-static boolean fileHasPrefix(char *basename, char *prefix)
+static boolean fileHasPrefix(const char *basename, const char *prefix)
{
static char *basename_lower = NULL;
int basename_length, prefix_length;
}
#endif
-static boolean fileHasSuffix(char *basename, char *suffix)
+static boolean fileHasSuffix(const char *basename, const char *suffix)
{
static char *basename_lower = NULL;
int basename_length, suffix_length;
// (now also added for Windows, to create files in user data directory)
// ----------------------------------------------------------------------------
+char *getLogBasename(char *basename)
+{
+ return getStringCat2(basename, ".log");
+}
+
char *getLogFilename(char *basename)
{
return getPath2(getMainUserGameDataDir(), basename);
}
-void OpenLogFiles(void)
+void OpenLogFile(void)
{
- int i;
-
InitMainUserDataDirectory();
- for (i = 0; i < NUM_LOGS; i++)
+ if ((program.log_file = fopen(program.log_filename, MODE_WRITE)) == NULL)
{
- if ((program.log_file[i] = fopen(program.log_filename[i], MODE_WRITE))
- == NULL)
- {
- program.log_file[i] = program.log_file_default[i]; // reset to default
+ program.log_file = program.log_file_default; // reset to default
- Warn("cannot open file '%s' for writing: %s",
- program.log_filename[i], strerror(errno));
- }
-
- // output should be unbuffered so it is not truncated in a crash
- setbuf(program.log_file[i], NULL);
+ Warn("cannot open file '%s' for writing: %s",
+ program.log_filename, strerror(errno));
}
+
+ // output should be unbuffered so it is not truncated in a crash
+ setbuf(program.log_file, NULL);
}
-void CloseLogFiles(void)
+void CloseLogFile(void)
{
- int i;
-
- for (i = 0; i < NUM_LOGS; i++)
- if (program.log_file[i] != program.log_file_default[i])
- fclose(program.log_file[i]);
+ if (program.log_file != program.log_file_default)
+ fclose(program.log_file);
}
-void DumpLogFile(int nr)
+void DumpLogFile(void)
{
- FILE *log_file = fopen(program.log_filename[nr], MODE_READ);
+ FILE *log_file = fopen(program.log_filename, MODE_READ);
if (log_file == NULL)
return;
void NotifyUserAboutErrorFile(void)
{
-#if defined(PLATFORM_WIN32)
+#if defined(PLATFORM_WINDOWS)
char *title_text = getStringCat2(program.program_title, " Error Message");
char *error_text = getStringCat2("The program was aborted due to an error; "
"for details, see the following error file:"
STRING_NEWLINE,
- program.log_filename[LOG_ERR_ID]);
+ program.log_filename);
MessageBox(NULL, error_text, title_text, MB_OK);
#endif