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Added support for lost allocations in ring buffer.

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Fixed some more bugs.
This commit is contained in:
Adam Sawicki 2018-08-22 16:48:17 +02:00
parent fd11d759dd
commit 8cfe05fad9
2 changed files with 216 additions and 16 deletions
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102
src/Tests.cpp
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@ -101,6 +101,8 @@ struct PoolTestResult
static const uint32_t IMAGE_BYTES_PER_PIXEL = 1;
static uint32_t g_FrameIndex = 0;
struct BufferInfo
{
VkBuffer Buffer = VK_NULL_HANDLE;
@ -1701,6 +1703,95 @@ static void TestLinearAllocator()
}
}
// Test ring buffer with lost allocations.
{
// Allocate number of buffers until pool is full.
// Notice CAN_BECOME_LOST flag and call to vmaSetCurrentFrameIndex.
allocCreateInfo.flags = VMA_ALLOCATION_CREATE_CAN_BECOME_LOST_BIT;
res = VK_SUCCESS;
for(size_t i = 0; res == VK_SUCCESS; ++i)
{
vmaSetCurrentFrameIndex(g_hAllocator, ++g_FrameIndex);
bufCreateInfo.size = bufSizeMin + rand.Generate() % (bufSizeMax - bufSizeMin);
BufferInfo newBufInfo;
res = vmaCreateBuffer(g_hAllocator, &bufCreateInfo, &allocCreateInfo,
&newBufInfo.Buffer, &newBufInfo.Allocation, &allocInfo);
if(res == VK_SUCCESS)
bufInfo.push_back(newBufInfo);
}
// Free first half of it.
{
const size_t buffersToDelete = bufInfo.size() / 2;
for(size_t i = 0; i < buffersToDelete; ++i)
{
vmaDestroyBuffer(g_hAllocator, bufInfo[i].Buffer, bufInfo[i].Allocation);
}
bufInfo.erase(bufInfo.begin(), bufInfo.begin() + buffersToDelete);
}
// Allocate number of buffers until pool is full again.
// This way we make sure ring buffers wraps around.
res = VK_SUCCESS;
for(size_t i = 0; res == VK_SUCCESS; ++i)
{
vmaSetCurrentFrameIndex(g_hAllocator, ++g_FrameIndex);
bufCreateInfo.size = bufSizeMin + rand.Generate() % (bufSizeMax - bufSizeMin);
BufferInfo newBufInfo;
res = vmaCreateBuffer(g_hAllocator, &bufCreateInfo, &allocCreateInfo,
&newBufInfo.Buffer, &newBufInfo.Allocation, &allocInfo);
if(res == VK_SUCCESS)
bufInfo.push_back(newBufInfo);
}
VkDeviceSize firstNewOffset;
{
vmaSetCurrentFrameIndex(g_hAllocator, ++g_FrameIndex);
// Allocate a large buffer with CAN_MAKE_OTHER_LOST.
allocCreateInfo.flags = VMA_ALLOCATION_CREATE_CAN_MAKE_OTHER_LOST_BIT;
bufCreateInfo.size = bufSizeMax;
BufferInfo newBufInfo;
res = vmaCreateBuffer(g_hAllocator, &bufCreateInfo, &allocCreateInfo,
&newBufInfo.Buffer, &newBufInfo.Allocation, &allocInfo);
assert(res == VK_SUCCESS);
bufInfo.push_back(newBufInfo);
firstNewOffset = allocInfo.offset;
// Make sure at least one buffer from the beginning became lost.
vmaGetAllocationInfo(g_hAllocator, bufInfo[0].Allocation, &allocInfo);
assert(allocInfo.deviceMemory == VK_NULL_HANDLE);
}
// Allocate more buffers that CAN_MAKE_OTHER_LOST until we wrap-around with this.
size_t newCount = 1;
for(;;)
{
vmaSetCurrentFrameIndex(g_hAllocator, ++g_FrameIndex);
bufCreateInfo.size = bufSizeMin + rand.Generate() % (bufSizeMax - bufSizeMin);
BufferInfo newBufInfo;
res = vmaCreateBuffer(g_hAllocator, &bufCreateInfo, &allocCreateInfo,
&newBufInfo.Buffer, &newBufInfo.Allocation, &allocInfo);
assert(res == VK_SUCCESS);
bufInfo.push_back(newBufInfo);
++newCount;
if(allocInfo.offset < firstNewOffset)
break;
}
// Destroy all the buffers in forward order.
for(size_t i = 0; i < bufInfo.size(); ++i)
vmaDestroyBuffer(g_hAllocator, bufInfo[i].Buffer, bufInfo[i].Allocation);
bufInfo.clear();
}
vmaDestroyPool(g_hAllocator, pool);
}
@ -3541,10 +3632,12 @@ void Test()
{
wprintf(L"TESTING:\n");
// TEMP tests
TestLinearAllocator();
ManuallyTestLinearAllocator();
return;
// TODO delete
{
TestLinearAllocator();
ManuallyTestLinearAllocator();
return;
}
// # Simple tests
@ -3561,6 +3654,7 @@ return;
TestMapping();
TestMappingMultithreaded();
TestLinearAllocator();
ManuallyTestLinearAllocator();
TestDefragmentationSimple();
TestDefragmentationFull();