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author Miodrag Milanovic <mmicko@gmail.com>2016-02-27 16:28:05 +0100
committer Miodrag Milanovic <mmicko@gmail.com>2016-02-27 16:53:49 +0100
commitcf6dc7d370407914020f3e623719f09c8668c692 (patch)
tree46b3416d091b4c09b50fba7ffcbd310aed032cc8 /3rdparty/SDL2/src/SDL_error.c
parent64135e73f973d9b95beb0c60b65feb34fbfec64a (diff)
Placed SDL2 source since we need it on some platforms (nw)
Diffstat (limited to '3rdparty/SDL2/src/SDL_error.c')
-rw-r--r--3rdparty/SDL2/src/SDL_error.c275
1 files changed, 275 insertions, 0 deletions
diff --git a/3rdparty/SDL2/src/SDL_error.c b/3rdparty/SDL2/src/SDL_error.c
new file mode 100644
index 00000000000..ace5cc3972c
--- /dev/null
+++ b/3rdparty/SDL2/src/SDL_error.c
@@ -0,0 +1,275 @@
+/*
+ Simple DirectMedia Layer
+ Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+*/
+#include "./SDL_internal.h"
+
+/* Simple error handling in SDL */
+
+#include "SDL_log.h"
+#include "SDL_error.h"
+#include "SDL_error_c.h"
+
+
+/* Routine to get the thread-specific error variable */
+#if SDL_THREADS_DISABLED
+/* The default (non-thread-safe) global error variable */
+static SDL_error SDL_global_error;
+#define SDL_GetErrBuf() (&SDL_global_error)
+#else
+extern SDL_error *SDL_GetErrBuf(void);
+#endif /* SDL_THREADS_DISABLED */
+
+#define SDL_ERRBUFIZE 1024
+
+/* Private functions */
+
+static const char *
+SDL_LookupString(const char *key)
+{
+ /* FIXME: Add code to lookup key in language string hash-table */
+ return key;
+}
+
+/* Public functions */
+
+int
+SDL_SetError(SDL_PRINTF_FORMAT_STRING const char *fmt, ...)
+{
+ va_list ap;
+ SDL_error *error;
+
+ /* Ignore call if invalid format pointer was passed */
+ if (fmt == NULL) return -1;
+
+ /* Copy in the key, mark error as valid */
+ error = SDL_GetErrBuf();
+ error->error = 1;
+ SDL_strlcpy((char *) error->key, fmt, sizeof(error->key));
+
+ va_start(ap, fmt);
+ error->argc = 0;
+ while (*fmt) {
+ if (*fmt++ == '%') {
+ while (*fmt == '.' || (*fmt >= '0' && *fmt <= '9')) {
+ ++fmt;
+ }
+ switch (*fmt++) {
+ case 0: /* Malformed format string.. */
+ --fmt;
+ break;
+ case 'c':
+ case 'i':
+ case 'd':
+ case 'u':
+ case 'o':
+ case 'x':
+ case 'X':
+ error->args[error->argc++].value_i = va_arg(ap, int);
+ break;
+ case 'f':
+ error->args[error->argc++].value_f = va_arg(ap, double);
+ break;
+ case 'p':
+ error->args[error->argc++].value_ptr = va_arg(ap, void *);
+ break;
+ case 's':
+ {
+ int i = error->argc;
+ const char *str = va_arg(ap, const char *);
+ if (str == NULL)
+ str = "(null)";
+ SDL_strlcpy((char *) error->args[i].buf, str,
+ ERR_MAX_STRLEN);
+ error->argc++;
+ }
+ break;
+ default:
+ break;
+ }
+ if (error->argc >= ERR_MAX_ARGS) {
+ break;
+ }
+ }
+ }
+ va_end(ap);
+
+ /* If we are in debug mode, print out an error message */
+ SDL_LogDebug(SDL_LOG_CATEGORY_ERROR, "%s", SDL_GetError());
+
+ return -1;
+}
+
+/* This function has a bit more overhead than most error functions
+ so that it supports internationalization and thread-safe errors.
+*/
+static char *
+SDL_GetErrorMsg(char *errstr, int maxlen)
+{
+ SDL_error *error;
+
+ /* Clear the error string */
+ *errstr = '\0';
+ --maxlen;
+
+ /* Get the thread-safe error, and print it out */
+ error = SDL_GetErrBuf();
+ if (error->error) {
+ const char *fmt;
+ char *msg = errstr;
+ int len;
+ int argi;
+
+ fmt = SDL_LookupString(error->key);
+ argi = 0;
+ while (*fmt && (maxlen > 0)) {
+ if (*fmt == '%') {
+ char tmp[32], *spot = tmp;
+ *spot++ = *fmt++;
+ while ((*fmt == '.' || (*fmt >= '0' && *fmt <= '9'))
+ && spot < (tmp + SDL_arraysize(tmp) - 2)) {
+ *spot++ = *fmt++;
+ }
+ *spot++ = *fmt++;
+ *spot++ = '\0';
+ switch (spot[-2]) {
+ case '%':
+ *msg++ = '%';
+ maxlen -= 1;
+ break;
+ case 'c':
+ case 'i':
+ case 'd':
+ case 'u':
+ case 'o':
+ case 'x':
+ case 'X':
+ len =
+ SDL_snprintf(msg, maxlen, tmp,
+ error->args[argi++].value_i);
+ if (len > 0) {
+ msg += len;
+ maxlen -= len;
+ }
+ break;
+
+ case 'f':
+ len =
+ SDL_snprintf(msg, maxlen, tmp,
+ error->args[argi++].value_f);
+ if (len > 0) {
+ msg += len;
+ maxlen -= len;
+ }
+ break;
+
+ case 'p':
+ len =
+ SDL_snprintf(msg, maxlen, tmp,
+ error->args[argi++].value_ptr);
+ if (len > 0) {
+ msg += len;
+ maxlen -= len;
+ }
+ break;
+
+ case 's':
+ len =
+ SDL_snprintf(msg, maxlen, tmp,
+ SDL_LookupString(error->args[argi++].
+ buf));
+ if (len > 0) {
+ msg += len;
+ maxlen -= len;
+ }
+ break;
+
+ }
+ } else {
+ *msg++ = *fmt++;
+ maxlen -= 1;
+ }
+ }
+
+ /* slide back if we've overshot the end of our buffer. */
+ if (maxlen < 0) {
+ msg -= (-maxlen) + 1;
+ }
+
+ *msg = 0; /* NULL terminate the string */
+ }
+ return (errstr);
+}
+
+/* Available for backwards compatibility */
+const char *
+SDL_GetError(void)
+{
+ static char errmsg[SDL_ERRBUFIZE];
+
+ return SDL_GetErrorMsg(errmsg, SDL_ERRBUFIZE);
+}
+
+void
+SDL_ClearError(void)
+{
+ SDL_error *error;
+
+ error = SDL_GetErrBuf();
+ error->error = 0;
+}
+
+/* Very common errors go here */
+int
+SDL_Error(SDL_errorcode code)
+{
+ switch (code) {
+ case SDL_ENOMEM:
+ return SDL_SetError("Out of memory");
+ case SDL_EFREAD:
+ return SDL_SetError("Error reading from datastream");
+ case SDL_EFWRITE:
+ return SDL_SetError("Error writing to datastream");
+ case SDL_EFSEEK:
+ return SDL_SetError("Error seeking in datastream");
+ case SDL_UNSUPPORTED:
+ return SDL_SetError("That operation is not supported");
+ default:
+ return SDL_SetError("Unknown SDL error");
+ }
+}
+
+#ifdef TEST_ERROR
+int
+main(int argc, char *argv[])
+{
+ char buffer[BUFSIZ + 1];
+
+ SDL_SetError("Hi there!");
+ printf("Error 1: %s\n", SDL_GetError());
+ SDL_ClearError();
+ SDL_memset(buffer, '1', BUFSIZ);
+ buffer[BUFSIZ] = 0;
+ SDL_SetError("This is the error: %s (%f)", buffer, 1.0);
+ printf("Error 2: %s\n", SDL_GetError());
+ exit(0);
+}
+#endif
+
+/* vi: set ts=4 sw=4 expandtab: */