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FEATURE: Several callbacks added -WIP- #1523 #1329

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NOTE: This feature is still under consideration and not complete.
This commit is contained in:
Ray 2021-03-04 12:06:28 +01:00
parent af3926af4b
commit c4a7c702b4
2 changed files with 70 additions and 25 deletions
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20
src/raylib.h
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@ -876,10 +876,13 @@ typedef enum {
// Callbacks to be implemented by users
typedef void (*TraceLogCallback)(int logType, const char *text, va_list args);
typedef void *(*MemAllocCallback)(int size);
typedef void *(*MemReallocCallback)(int size);
typedef void *(*MemReallocCallback)(void *ptr, int size);
typedef void (*MemFreeCallback)(void *ptr);
typedef unsigned char* (*LoadFileDataCallback)(const char* fileName, unsigned int* bytesRead); // Load file data as byte array (read)
typedef char* (*LoadFileTextCallback)(const char* fileName); // Load text data from file (read), returns a '\0' terminated string
typedef unsigned char* (*LoadFileDataCallback)(const char* fileName, unsigned int* bytesRead);
typedef void (*SaveFileDataCallback)(const char *fileName, void *data, unsigned int bytesToWrite);
typedef char *(*LoadFileTextCallback)(const char* fileName);
typedef void (*SaveFileTextCallback)(const char *fileName, char *text);
#if defined(__cplusplus)
extern "C" { // Prevents name mangling of functions
@ -979,15 +982,18 @@ RLAPI void SetConfigFlags(unsigned int flags); // Setup init
RLAPI void TraceLog(int logType, const char *text, ...); // Show trace log messages (LOG_DEBUG, LOG_INFO, LOG_WARNING, LOG_ERROR)
RLAPI void SetTraceLogLevel(int logType); // Set the current threshold (minimum) log level
RLAPI void *MemAlloc(int size); // Internal memory allocator
RLAPI void *MemRealloc(void *ptr, int size); // Internal memory reallocator
RLAPI void MemFree(void *ptr); // Internal memory free
// Set system callbacks
RLAPI void SetTraceLogCallback(TraceLogCallback callback); // Set a trace log callback to enable custom logging
// Set custom system callbacks
RLAPI void SetTraceLogCallback(TraceLogCallback callback); // Set custom trace log
RLAPI void SetMemAllocCallback(MemAllocCallback callback); // Set custom memory allocator
RLAPI void SetMemReallocCallback(MemReallocCallback callback); // Set custom memory reallocator
RLAPI void SetMemFreeCallback(MemFreeCallback callback); // Set custom memory free
RLAPI void SetLoadFileDataCallback(LoadFileDataCallback callback); // override default file access functions
RLAPI void SetLoadFileTextCallback(LoadFileDataCallback callback); // override default file access functions
RLAPI void SetLoadFileDataCallback(LoadFileDataCallback callback); // Set custom file data loader
RLAPI void SetSaveFileDataCallback(SaveFileDataCallback callback); // Set custom file data saver
RLAPI void SetLoadFileTextCallback(LoadFileTextCallback callback); // Set custom file text loader
RLAPI void SetSaveFileTextCallback(SaveFileTextCallback callback); // Set custom file text saver
// Files management functions
RLAPI unsigned char *LoadFileData(const char *fileName, unsigned int *bytesRead); // Load file data as byte array (read)

75
src/utils.c
View file

@ -65,9 +65,29 @@
//----------------------------------------------------------------------------------
// Log types messages
static int logTypeLevel = LOG_INFO; // Minimum log type level
static int logTypeExit = LOG_ERROR; // Log type that exits
static TraceLogCallback logCallback = NULL; // Log callback function pointer
static int logTypeLevel = LOG_INFO; // Minimum log type level
static TraceLogCallback traceLog = NULL; // TraceLog callback function pointer
static MemAllocCallback memAlloc = NULL; // MemAlloc callback function pointer
static MemReallocCallback memRealloc = NULL; // MemRealloc callback funtion pointer
static MemFreeCallback memFree = NULL; // MemFree callback funtion pointer
static LoadFileDataCallback loadFileData = NULL; // LoadFileData callback funtion pointer
static SaveFileDataCallback saveFileData = NULL; // SaveFileText callback funtion pointer
static LoadFileTextCallback loadFileText = NULL; // LoadFileText callback funtion pointer
static SaveFileTextCallback saveFileText = NULL; // SaveFileText callback funtion pointer
//void *MemAllocDefault(unsigned int size) { return RL_MALLOC(size); }
//void MemFreeDefault(void *ptr) { RL_FREE(ptr); }
void SetTraceLogCallback(TraceLogCallback callback) { traceLog = callback; } // Set custom trace log
void SetMemAllocCallback(MemAllocCallback callback) { memAlloc = callback; } // Set custom memory allocator
void SetMemReallocCallback(MemReallocCallback callback) { memRealloc = callback; } // Set custom memory reallocator
void SetMemFreeCallback(MemFreeCallback callback) { memFree = callback; } // Set custom memory free
void SetLoadFileDataCallback(LoadFileDataCallback callback) { loadFileData = callback; } // Set custom file data loader
void SetSaveFileDataCallback(SaveFileDataCallback callback) { saveFileData = callback; } // Set custom file data saver
void SetLoadFileTextCallback(LoadFileTextCallback callback) { loadFileText = callback; } // Set custom file text loader
void SetSaveFileTextCallback(SaveFileTextCallback callback) { saveFileText = callback; } // Set custom file text saver
#if defined(PLATFORM_ANDROID)
static AAssetManager *assetManager = NULL; // Android assets manager pointer
@ -92,16 +112,7 @@ static int android_close(void *cookie);
//----------------------------------------------------------------------------------
// Set the current threshold (minimum) log level
void SetTraceLogLevel(int logType)
{
logTypeLevel = logType;
}
// Set a trace log callback to enable custom logging
void SetTraceLogCallback(TraceLogCallback callback)
{
logCallback = callback;
}
void SetTraceLogLevel(int logType) { logTypeLevel = logType; }
// Show trace log messages (LOG_INFO, LOG_WARNING, LOG_ERROR, LOG_DEBUG)
void TraceLog(int logType, const char *text, ...)
@ -113,9 +124,9 @@ void TraceLog(int logType, const char *text, ...)
va_list args;
va_start(args, text);
if (logCallback)
if (traceLog)
{
logCallback(logType, text, args);
traceLog(logType, text, args);
va_end(args);
return;
}
@ -152,21 +163,37 @@ void TraceLog(int logType, const char *text, ...)
va_end(args);
if (logType >= logTypeExit) exit(1); // If exit message, exit program
if (logType == LOG_ERROR) exit(1); // If error, exit program
#endif // SUPPORT_TRACELOG
}
// Internal memory allocator
// NOTE: Initializes to zero by default
void *MemAlloc(int size)
{
return RL_MALLOC(size);
// WARNING: This implementation allows changing memAlloc at any
// point during program execution, it could be a security risk
void *ptr = NULL;
if (memAlloc) ptr = memAlloc(size);
else ptr = RL_CALLOC(size, 1);
return ptr;
}
// Internal memory reallocator
void *MemRealloc(void *ptr, int size)
{
void *ret = NULL;
if (memRealloc) ret = memRealloc(ptr, size);
else ret = RL_REALLOC(ptr, size);
return ret;
}
// Internal memory free
void MemFree(void *ptr)
{
RL_FREE(ptr);
if (memFree) memFree(ptr);
else RL_FREE(ptr);
}
// Load data from file into a buffer
@ -177,6 +204,12 @@ unsigned char *LoadFileData(const char *fileName, unsigned int *bytesRead)
if (fileName != NULL)
{
if (loadFileData)
{
data = loadFileData(fileName, bytesRead);
return data;
}
FILE *file = fopen(fileName, "rb");
if (file != NULL)
@ -222,6 +255,12 @@ bool SaveFileData(const char *fileName, void *data, unsigned int bytesToWrite)
if (fileName != NULL)
{
if (saveFileData)
{
saveFileData(fileName, data, bytesToWrite);
return success;
}
FILE *file = fopen(fileName, "wb");
if (file != NULL)