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API CHANGE: Update rules on realloc and allocation callbacks.

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Allocation callbacks must now implement onRealloc() themselves. This is
no longer emulated by miniaudio.
This commit is contained in:
David Reid
2021-07-04 17:38:16 +10:00
parent bfe8358d9f
commit 071291b848
1 changed files with 7 additions and 39 deletions
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miniaudio.h
+7 -39
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@@ -8236,15 +8236,10 @@ static void* ma__malloc_from_callbacks(size_t sz, const ma_allocation_callbacks*
return pAllocationCallbacks->onMalloc(sz, pAllocationCallbacks->pUserData);
}
/* Try using realloc(). */
if (pAllocationCallbacks->onRealloc != NULL) {
return pAllocationCallbacks->onRealloc(NULL, sz, pAllocationCallbacks->pUserData);
}
return NULL;
}
static void* ma__realloc_from_callbacks(void* p, size_t szNew, size_t szOld, const ma_allocation_callbacks* pAllocationCallbacks)
static void* ma__realloc_from_callbacks(void* p, size_t szNew, const ma_allocation_callbacks* pAllocationCallbacks)
{
if (pAllocationCallbacks == NULL) {
return NULL;
@@ -8254,23 +8249,6 @@ static void* ma__realloc_from_callbacks(void* p, size_t szNew, size_t szOld, con
return pAllocationCallbacks->onRealloc(p, szNew, pAllocationCallbacks->pUserData);
}
/* Try emulating realloc() in terms of malloc()/free(). */
if (pAllocationCallbacks->onMalloc != NULL && pAllocationCallbacks->onFree != NULL) {
void* p2;
p2 = pAllocationCallbacks->onMalloc(szNew, pAllocationCallbacks->pUserData);
if (p2 == NULL) {
return NULL;
}
if (p != NULL) {
MA_COPY_MEMORY(p2, p, szOld);
pAllocationCallbacks->onFree(p, pAllocationCallbacks->pUserData);
}
return p2;
}
return NULL;
}
@@ -20141,9 +20119,8 @@ static ma_result ma_context_enumerate_devices__alsa(ma_context* pContext, ma_enu
goto next_device; /* The device has already been enumerated. Move on to the next one. */
} else {
/* The device has not yet been enumerated. Make sure it's added to our list so that it's not enumerated again. */
size_t oldCapacity = sizeof(*pUniqueIDs) * uniqueIDCount;
size_t newCapacity = sizeof(*pUniqueIDs) * (uniqueIDCount + 1);
ma_device_id* pNewUniqueIDs = (ma_device_id*)ma__realloc_from_callbacks(pUniqueIDs, newCapacity, oldCapacity, &pContext->allocationCallbacks);
ma_device_id* pNewUniqueIDs = (ma_device_id*)ma_realloc(pUniqueIDs, newCapacity, &pContext->allocationCallbacks);
if (pNewUniqueIDs == NULL) {
goto next_device; /* Failed to allocate memory. */
}
@@ -26352,17 +26329,15 @@ static ma_result ma_device__track__coreaudio(ma_device* pDevice)
{
/* Allocate memory if required. */
if (g_TrackedDeviceCap_CoreAudio <= g_TrackedDeviceCount_CoreAudio) {
ma_uint32 oldCap;
ma_uint32 newCap;
ma_device** ppNewDevices;
oldCap = g_TrackedDeviceCap_CoreAudio;
newCap = g_TrackedDeviceCap_CoreAudio * 2;
if (newCap == 0) {
newCap = 1;
}
ppNewDevices = (ma_device**)ma__realloc_from_callbacks(g_ppTrackedDevices_CoreAudio, sizeof(*g_ppTrackedDevices_CoreAudio)*newCap, sizeof(*g_ppTrackedDevices_CoreAudio)*oldCap, &pDevice->pContext->allocationCallbacks);
ppNewDevices = (ma_device**)ma_realloc(g_ppTrackedDevices_CoreAudio, sizeof(*g_ppTrackedDevices_CoreAudio)*newCap, &pDevice->pContext->allocationCallbacks);
if (ppNewDevices == NULL) {
ma_mutex_unlock(&g_DeviceTrackingMutex_CoreAudio);
return MA_OUT_OF_MEMORY;
@@ -33133,9 +33108,8 @@ static ma_bool32 ma_context_get_devices__enum_callback(ma_context* pContext, ma_
const ma_uint32 totalDeviceInfoCount = pContext->playbackDeviceInfoCount + pContext->captureDeviceInfoCount;
if (totalDeviceInfoCount >= pContext->deviceInfoCapacity) {
ma_uint32 oldCapacity = pContext->deviceInfoCapacity;
ma_uint32 newCapacity = oldCapacity + bufferExpansionCount;
ma_device_info* pNewInfos = (ma_device_info*)ma__realloc_from_callbacks(pContext->pDeviceInfos, sizeof(*pContext->pDeviceInfos)*newCapacity, sizeof(*pContext->pDeviceInfos)*oldCapacity, &pContext->allocationCallbacks);
ma_uint32 newCapacity = pContext->deviceInfoCapacity + bufferExpansionCount;
ma_device_info* pNewInfos = (ma_device_info*)ma_realloc(pContext->pDeviceInfos, sizeof(*pContext->pDeviceInfos)*newCapacity, &pContext->allocationCallbacks);
if (pNewInfos == NULL) {
return MA_FALSE; /* Out of memory. */
}
@@ -43339,11 +43313,7 @@ MA_API void* ma_malloc(size_t sz, const ma_allocation_callbacks* pAllocationCall
MA_API void* ma_realloc(void* p, size_t sz, const ma_allocation_callbacks* pAllocationCallbacks)
{
if (pAllocationCallbacks != NULL) {
if (pAllocationCallbacks->onRealloc != NULL) {
return pAllocationCallbacks->onRealloc(p, sz, pAllocationCallbacks->pUserData);
} else {
return NULL; /* This requires a native implementation of realloc(). */
}
return ma__realloc_from_callbacks(p, sz, pAllocationCallbacks);
} else {
return ma__realloc_default(p, sz, NULL);
}
@@ -50646,7 +50616,6 @@ static ma_result ma_decoder__full_decode_and_uninit(ma_decoder* pDecoder, ma_dec
/* Make room if there's not enough. */
if (totalFrameCount == dataCapInFrames) {
void* pNewPCMFramesOut;
ma_uint64 oldDataCapInFrames = dataCapInFrames;
ma_uint64 newDataCapInFrames = dataCapInFrames*2;
if (newDataCapInFrames == 0) {
newDataCapInFrames = 4096;
@@ -50657,8 +50626,7 @@ static ma_result ma_decoder__full_decode_and_uninit(ma_decoder* pDecoder, ma_dec
return MA_TOO_BIG;
}
pNewPCMFramesOut = (void*)ma__realloc_from_callbacks(pPCMFramesOut, (size_t)(newDataCapInFrames * bpf), (size_t)(oldDataCapInFrames * bpf), &pDecoder->allocationCallbacks);
pNewPCMFramesOut = (void*)ma_realloc(pPCMFramesOut, (size_t)(newDataCapInFrames * bpf), &pDecoder->allocationCallbacks);
if (pNewPCMFramesOut == NULL) {
ma__free_from_callbacks(pPCMFramesOut, &pDecoder->allocationCallbacks);
return MA_OUT_OF_MEMORY;