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vkd3d: Handle integer overflow of sequence numbers.

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Signed-off-by: Józef Kucia <jkucia@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Józef Kucia 2019-05-06 14:47:39 +02:00 committed by Alexandre Julliard
parent a2f7ae0d32
commit bce64bf67b
1 changed files with 21 additions and 2 deletions
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23
libs/vkd3d/command.c
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@ -161,6 +161,21 @@ static void vkd3d_queue_update_sequence_number(struct vkd3d_queue *queue,
pthread_mutex_unlock(&queue->mutex);
}
static uint64_t vkd3d_queue_reset_sequence_number_locked(struct vkd3d_queue *queue)
{
unsigned int i;
WARN("Ressetting sequence number for queue %p.\n", queue);
queue->completed_sequence_number = 0;
queue->submitted_sequence_number = 1;
for (i = 0; i < queue->semaphore_count; ++i)
queue->semaphores[i].sequence_number = queue->submitted_sequence_number;
return queue->submitted_sequence_number;
}
/* Fence worker thread */
static HRESULT vkd3d_enqueue_gpu_fence(struct vkd3d_fence_worker *worker,
VkFence vk_fence, struct d3d12_fence *fence, uint64_t value,
@ -5298,11 +5313,15 @@ static HRESULT STDMETHODCALLTYPE d3d12_command_queue_Signal(ID3D12CommandQueue *
}
if ((vr = VK_CALL(vkQueueSubmit(vk_queue, 1, &submit_info, vk_fence))) >= 0)
{
sequence_number = ++vkd3d_queue->submitted_sequence_number;
vkd3d_queue_release(vkd3d_queue);
/* We don't expect to overrun the 64-bit counter, but we handle it gracefully anyway. */
if (!sequence_number)
sequence_number = vkd3d_queue_reset_sequence_number_locked(vkd3d_queue);
}
assert(sequence_number != ~(uint64_t)0);
vkd3d_queue_release(vkd3d_queue);
if (vr < 0)
{