Avoid using realloc in a number of places

Alc/effects/chorus.c

@@ -57,7 +57,7 @@ typedef struct ALchorusState {
 
 static ALvoid ALchorusState_Destruct(ALchorusState *state)
 {
-    free(state->SampleBuffer[0]);
+    al_free(state->SampleBuffer[0]);
     state->SampleBuffer[0] = NULL;
     state->SampleBuffer[1] = NULL;
     ALeffectState_Destruct(STATIC_CAST(ALeffectState,state));
@@ -73,10 +73,10 @@ static ALboolean ALchorusState_deviceUpdate(ALchorusState *state, ALCdevice *Dev
 
     if(maxlen != state->BufferLength)
     {
-        void *temp;
-
-        temp = realloc(state->SampleBuffer[0], maxlen * sizeof(ALfloat) * 2);
+        void *temp = al_calloc(16, maxlen * sizeof(ALfloat) * 2);
         if(!temp) return AL_FALSE;
+
+        al_free(state->SampleBuffer[0]);
         state->SampleBuffer[0] = temp;
         state->SampleBuffer[1] = state->SampleBuffer[0] + maxlen;
 

Alc/effects/echo.c

@@ -52,7 +52,7 @@ typedef struct ALechoState {
 
 static ALvoid ALechoState_Destruct(ALechoState *state)
 {
-    free(state->SampleBuffer);
+    al_free(state->SampleBuffer);
     state->SampleBuffer = NULL;
     ALeffectState_Destruct(STATIC_CAST(ALeffectState,state));
 }
@@ -69,10 +69,10 @@ static ALboolean ALechoState_deviceUpdate(ALechoState *state, ALCdevice *Device)
 
     if(maxlen != state->BufferLength)
     {
-        void *temp;
-
-        temp = realloc(state->SampleBuffer, maxlen * sizeof(ALfloat));
+        void *temp = al_calloc(16, maxlen * sizeof(ALfloat));
         if(!temp) return AL_FALSE;
+
+        al_free(state->SampleBuffer);
         state->SampleBuffer = temp;
         state->BufferLength = maxlen;
     }

Alc/effects/flanger.c

@@ -57,7 +57,7 @@ typedef struct ALflangerState {
 
 static ALvoid ALflangerState_Destruct(ALflangerState *state)
 {
-    free(state->SampleBuffer[0]);
+    al_free(state->SampleBuffer[0]);
     state->SampleBuffer[0] = NULL;
     state->SampleBuffer[1] = NULL;
     ALeffectState_Destruct(STATIC_CAST(ALeffectState,state));
@@ -73,10 +73,10 @@ static ALboolean ALflangerState_deviceUpdate(ALflangerState *state, ALCdevice *D
 
     if(maxlen != state->BufferLength)
     {
-        void *temp;
-
-        temp = realloc(state->SampleBuffer[0], maxlen * sizeof(ALfloat) * 2);
+        void *temp = al_calloc(16, maxlen * sizeof(ALfloat) * 2);
         if(!temp) return AL_FALSE;
+
+        al_free(state->SampleBuffer[0]);
         state->SampleBuffer[0] = temp;
         state->SampleBuffer[1] = state->SampleBuffer[0] + maxlen;
 

Alc/effects/reverb.c

@@ -170,7 +170,7 @@ typedef struct ALreverbState {
 
 static ALvoid ALreverbState_Destruct(ALreverbState *State)
 {
-    free(State->SampleBuffer);
+    al_free(State->SampleBuffer);
     State->SampleBuffer = NULL;
     ALeffectState_Destruct(STATIC_CAST(ALeffectState,State));
 }
@@ -295,7 +295,6 @@ static ALboolean AllocLines(ALuint frequency, ALreverbState *State)
 {
     ALuint totalSamples, index;
     ALfloat length;
-    ALfloat *newBuffer = NULL;
 
     // All delay line lengths are calculated to accomodate the full range of
     // lengths given their respective paramters.
@@ -352,10 +351,13 @@ static ALboolean AllocLines(ALuint frequency, ALreverbState *State)
 
     if(totalSamples != State->TotalSamples)
     {
+        ALfloat *newBuffer;
+
         TRACE("New reverb buffer length: %u samples (%f sec)\n", totalSamples, totalSamples/(float)frequency);
-        newBuffer = realloc(State->SampleBuffer, sizeof(ALfloat) * totalSamples);
-        if(newBuffer == NULL)
-            return AL_FALSE;
+        newBuffer = al_calloc(16, sizeof(ALfloat) * totalSamples);
+        if(!newBuffer) return AL_FALSE;
+
+        al_free(State->SampleBuffer);
         State->SampleBuffer = newBuffer;
         State->TotalSamples = totalSamples;
     }

Alc/helpers.c

@@ -759,9 +759,12 @@ ALboolean vector_reserve(char *ptr, size_t base_size, size_t obj_size, size_t ob
         /* Need to be explicit with the caller type's base size, because it
          * could have extra padding before the start of the array (that is,
          * sizeof(*vector_) may not equal base_size). */
-        temp = realloc(*vecptr, base_size + obj_size*obj_count);
+        temp = al_calloc(16, base_size + obj_size*obj_count);
         if(temp == NULL) return AL_FALSE;
+        memcpy(((ALubyte*)temp)+base_size, ((ALubyte*)*vecptr)+base_size,
+               obj_size*old_size);
 
+        al_free(*vecptr);
         *vecptr = temp;
         (*vecptr)->Capacity = obj_count;
         (*vecptr)->Size = old_size;

Alc/vector.h

@@ -5,6 +5,8 @@
 
 #include <AL/al.h>
 
+#include "almalloc.h"
+
 /* "Base" vector type, designed to alias with the actual vector types. */
 typedef struct vector__s {
     size_t Capacity;
@@ -27,7 +29,7 @@ typedef const _##N* const_##N;
 
 #define VECTOR_INIT(_x)       do { (_x) = NULL; } while(0)
 #define VECTOR_INIT_STATIC()  NULL
-#define VECTOR_DEINIT(_x)     do { free((_x)); (_x) = NULL; } while(0)
+#define VECTOR_DEINIT(_x)     do { al_free((_x)); (_x) = NULL; } while(0)
 
 /* Helper to increase a vector's reserve. Do not call directly. */
 ALboolean vector_reserve(char *ptr, size_t base_size, size_t obj_size, size_t obj_count, ALboolean exact);

OpenAL32/Include/alBuffer.h

@@ -80,6 +80,7 @@ typedef struct ALbuffer {
 
     enum FmtChannels FmtChannels;
     enum FmtType     FmtType;
+    ALuint BytesAlloc;
 
     enum UserFmtChannels OriginalChannels;
     enum UserFmtType     OriginalType;

OpenAL32/alBuffer.c

@@ -985,7 +985,6 @@ ALenum LoadData(ALbuffer *ALBuf, ALuint freq, ALenum NewFormat, ALsizei frames,
     enum FmtChannels DstChannels;
     enum FmtType DstType;
     ALuint64 newsize;
-    ALvoid *temp;
 
     if(DecomposeFormat(NewFormat, &DstChannels, &DstType) == AL_FALSE ||
        (long)SrcChannels != (long)DstChannels)
@@ -1007,13 +1006,25 @@ ALenum LoadData(ALbuffer *ALBuf, ALuint freq, ALenum NewFormat, ALsizei frames,
         return AL_INVALID_OPERATION;
     }
 
-    temp = realloc(ALBuf->data, (size_t)newsize);
-    if(!temp && newsize)
+    /* Round up to the next 16-byte multiple. This could reallocate only when
+     * increasing or the new size is less than half the current, but then the
+     * buffer's AL_SIZE would not be very reliable for accounting buffer memory
+     * usage, and reporting the real size could cause problems for apps that
+     * use AL_SIZE to try to get the buffer's play length.
+     */
+    newsize = (newsize+15) & ~0xf;
+    if(newsize != ALBuf->BytesAlloc)
     {
-        WriteUnlock(&ALBuf->lock);
-        return AL_OUT_OF_MEMORY;
+        void *temp = al_calloc(16, (size_t)newsize);
+        if(!temp && newsize)
+        {
+            WriteUnlock(&ALBuf->lock);
+            return AL_OUT_OF_MEMORY;
+        }
+        al_free(ALBuf->data);
+        ALBuf->data = temp;
+        ALBuf->BytesAlloc = (ALuint)newsize;
     }
-    ALBuf->data = temp;
 
     if(data != NULL)
         ConvertData(ALBuf->data, (enum UserFmtType)DstType, data, SrcType, NewChannels, frames, align);
@@ -1349,7 +1360,7 @@ ALbuffer *NewBuffer(ALCcontext *context)
     ALbuffer *buffer;
     ALenum err;
 
-    buffer = calloc(1, sizeof(ALbuffer));
+    buffer = al_calloc(16, sizeof(ALbuffer));
     if(!buffer)
         SET_ERROR_AND_RETURN_VALUE(context, AL_OUT_OF_MEMORY, NULL);
     RWLockInit(&buffer->lock);
@@ -1361,7 +1372,7 @@ ALbuffer *NewBuffer(ALCcontext *context)
     {
         FreeThunkEntry(buffer->id);
         memset(buffer, 0, sizeof(ALbuffer));
-        free(buffer);
+        al_free(buffer);
 
         SET_ERROR_AND_RETURN_VALUE(context, err, NULL);
     }
@@ -1374,10 +1385,10 @@ void DeleteBuffer(ALCdevice *device, ALbuffer *buffer)
     RemoveBuffer(device, buffer->id);
     FreeThunkEntry(buffer->id);
 
-    free(buffer->data);
+    al_free(buffer->data);
 
     memset(buffer, 0, sizeof(*buffer));
-    free(buffer);
+    al_free(buffer);
 }
 
 
@@ -1394,10 +1405,10 @@ ALvoid ReleaseALBuffers(ALCdevice *device)
         ALbuffer *temp = device->BufferMap.array[i].value;
         device->BufferMap.array[i].value = NULL;
 
-        free(temp->data);
+        al_free(temp->data);
 
         FreeThunkEntry(temp->id);
         memset(temp, 0, sizeof(ALbuffer));
-        free(temp);
+        al_free(temp);
     }
 }

OpenAL32/alSource.c

@@ -2268,14 +2268,16 @@ AL_API ALvoid AL_APIENTRY alSourcePlayv(ALsizei n, const ALuint *sources)
 
         newcount = context->MaxVoices << 1;
         if(newcount > 0)
-            temp = realloc(context->Voices, newcount * sizeof(context->Voices[0]));
+            temp = al_malloc(16, newcount * sizeof(context->Voices[0]));
         if(!temp)
         {
             UnlockContext(context);
             SET_ERROR_AND_GOTO(context, AL_OUT_OF_MEMORY, done);
         }
+        memcpy(temp, context->Voices, context->MaxVoices * sizeof(temp[0]));
         memset(&temp[context->MaxVoices], 0, (newcount-context->MaxVoices) * sizeof(temp[0]));
 
+        al_free(context->Voices);
         context->Voices = temp;
         context->MaxVoices = newcount;
     }