Mercurial > sdl-ios-xcode
diff src/SDL_log.c @ 5226:2ee8112bfc6b
Added a simple log message API
author | Sam Lantinga <slouken@libsdl.org> |
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date | Mon, 07 Feb 2011 16:45:40 -0800 |
parents | |
children | ab0d7cecc0f6 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/SDL_log.c Mon Feb 07 16:45:40 2011 -0800 @@ -0,0 +1,273 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2010 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ +#include "SDL_config.h" + +/* Simple log messages in SDL */ + +#include "SDL_log.h" + +#if HAVE_STDIO_H +#include <stdio.h> +#endif + +#if defined(__WIN32__) +#include "core/windows/SDL_windows.h" +#elif defined(__ANDROID__) +#include <android/log.h> +#endif + +#define DEFAULT_PRIORITY SDL_LOG_PRIORITY_CRITICAL +#define DEFAULT_APPLICATION_PRIORITY SDL_LOG_PRIORITY_INFO + +typedef struct SDL_LogLevel +{ + int category; + SDL_LogPriority priority; + struct SDL_LogLevel *next; +} SDL_LogLevel; + +static SDL_LogLevel *SDL_loglevels; +static SDL_LogPriority SDL_application_priority = DEFAULT_APPLICATION_PRIORITY; +static SDL_LogPriority SDL_default_priority = DEFAULT_PRIORITY; + +static const char *SDL_priority_prefixes[SDL_NUM_LOG_PRIORITIES] = { + "VERBOSE", + "DEBUG", + "INFO", + "WARN", + "ERROR", + "CRITICAL" +}; + +#ifdef __ANDROID__ +static const char *SDL_category_prefixes[SDL_LOG_CATEGORY_RESERVED1] = { + "APP", + "ERROR", + "SYSTEM", + "AUDIO", + "VIDEO", + "RENDER", + "INPUT" +}; + +static int SDL_android_priority[SDL_NUM_LOG_PRIORITIES] = { + ANDROID_LOG_VERBOSE, + ANDROID_LOG_DEBUG, + ANDROID_LOG_INFO, + ANDROID_LOG_WARN, + ANDROID_LOG_ERROR, + ANDROID_LOG_FATAL +}; +#endif /* __ANDROID__ */ + + +void +SDL_LogSetAllPriority(SDL_LogPriority priority) +{ + SDL_LogLevel *entry; + + for (entry = SDL_loglevels; entry; entry = entry->next) { + entry->priority = priority; + } + SDL_application_priority = SDL_default_priority = priority; +} + +void +SDL_LogSetPriority(int category, SDL_LogPriority priority) +{ + SDL_LogLevel *entry; + + for (entry = SDL_loglevels; entry; entry = entry->next) { + if (entry->category == category) { + entry->priority = priority; + return; + } + } + + /* Create a new entry */ + entry = (SDL_LogLevel *)SDL_malloc(sizeof(*entry)); + if (entry) { + entry->category = category; + entry->priority = priority; + entry->next = SDL_loglevels; + SDL_loglevels = entry; + } +} + +SDL_LogPriority +SDL_LogGetPriority(int category) +{ + SDL_LogLevel *entry; + + for (entry = SDL_loglevels; entry; entry = entry->next) { + if (entry->category == category) { + return entry->priority; + } + } + + if (category == SDL_LOG_CATEGORY_APPLICATION) { + return SDL_application_priority; + } else { + return SDL_default_priority; + } +} + +void +SDL_LogResetPriorities(void) +{ + SDL_LogLevel *entry; + + while (SDL_loglevels) { + entry = SDL_loglevels; + SDL_loglevels = entry->next; + SDL_free(entry); + } + + SDL_application_priority = DEFAULT_APPLICATION_PRIORITY; + SDL_default_priority = DEFAULT_PRIORITY; +} + +void +SDL_Log(const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + SDL_LogMessageV(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO, fmt, ap); + va_end(ap); +} + +void +SDL_LogVerbose(int category, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + SDL_LogMessageV(category, SDL_LOG_PRIORITY_VERBOSE, fmt, ap); + va_end(ap); +} + +void +SDL_LogInfo(int category, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + SDL_LogMessageV(category, SDL_LOG_PRIORITY_INFO, fmt, ap); + va_end(ap); +} + +void +SDL_LogWarn(int category, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + SDL_LogMessageV(category, SDL_LOG_PRIORITY_WARN, fmt, ap); + va_end(ap); +} + +void +SDL_LogError(int category, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + SDL_LogMessageV(category, SDL_LOG_PRIORITY_ERROR, fmt, ap); + va_end(ap); +} + +void +SDL_LogCritical(int category, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + SDL_LogMessageV(category, SDL_LOG_PRIORITY_CRITICAL, fmt, ap); + va_end(ap); +} + +void +SDL_LogMessage(int category, SDL_LogPriority priority, const char *fmt, ...) +{ + va_list ap; + + va_start(ap, fmt); + SDL_LogMessageV(category, priority, fmt, ap); + va_end(ap); +} + +#ifdef __ANDROID__ +static const char * +GetCategoryPrefix(int category) +{ + if (category < SDL_LOG_CATEGORY_RESERVED1) { + return SDL_category_prefixes[category]; + } + if (category < SDL_LOG_CATEGORY_CUSTOM) { + return "RESERVED"; + } + return "CUSTOM"; +} +#endif /* __ANDROID__ */ + +void +SDL_LogMessageV(int category, SDL_LogPriority priority, const char *fmt, va_list ap) +{ + char message[SDL_MAX_LOG_MESSAGE]; + + /* Make sure we don't exceed array bounds */ + if (priority < 0 || priority >= SDL_NUM_LOG_PRIORITIES) { + return; + } + + /* See if we want to do anything with this message */ + if (priority < SDL_LogGetPriority(category)) { + return; + } + + SDL_vsnprintf(message, SDL_arraysize(message), fmt, ap); + +#if defined(__WIN32__) + { + char output[32+SDL_MAX_LOG_MESSAGE]; + LPTSTR tstr; + + SDL_snprintf(output, SDL_arraysize(output), "%s: %s", SDL_priority_prefixes[priority], message); + tstr = WIN_UTF8ToString(output); + OutputDebugString(tstr); + SDL_free(tstr); + } +#elif defined(__ANDROID__) + { + char tag[32]; + + SDL_snprintf(tag, SDL_arraysize(tag), "SDL/%s", GetCategoryPrefix(category)); + __android_log_write(SDL_android_priority[priority], tag, message); + } +#endif +#if HAVE_STDIO_H + fprintf(stderr, "%s: %s\n", SDL_priority_prefixes[priority], message); +#endif +} + +/* vi: set ts=4 sw=4 expandtab: */