From: Giovanni Mascellani gmascellani@codeweavers.com
From the tests it behaves more like a semaphore than like an event.
I'm not testing explicitly because I'm not sure it's relevant, but another indication is that calling ReleaseSemaphore() returns ERROR_ACCESS_DENIED, while calling SetEvent() returns ERROR_INVALID_HANDLE. --- dlls/dxgi/tests/dxgi.c | 39 +++++++++++++++++++-------------------- 1 file changed, 19 insertions(+), 20 deletions(-)
diff --git a/dlls/dxgi/tests/dxgi.c b/dlls/dxgi/tests/dxgi.c index 4cd122995ef..b8863594090 100644 --- a/dlls/dxgi/tests/dxgi.c +++ b/dlls/dxgi/tests/dxgi.c @@ -6977,11 +6977,11 @@ static void test_factory_check_feature_support(void) static void test_frame_latency_event(IUnknown *device, BOOL is_d3d12) { DXGI_SWAP_CHAIN_DESC1 swapchain_desc; + HANDLE semaphore, semaphore2; IDXGISwapChain2 *swapchain2; IDXGISwapChain1 *swapchain1; IDXGIFactory2 *factory2; IDXGIFactory *factory; - HANDLE event, event2; UINT frame_latency; DWORD wait_result; ULONG ref_count; @@ -7036,8 +7036,8 @@ static void test_frame_latency_event(IUnknown *device, BOOL is_d3d12) ok(frame_latency == 0xdeadbeef, "Got unexpected frame latency %#x.\n", frame_latency); hr = IDXGISwapChain2_SetMaximumFrameLatency(swapchain2, 1); ok(hr == DXGI_ERROR_INVALID_CALL, "Got unexpected hr %#lx.\n", hr); - event = IDXGISwapChain2_GetFrameLatencyWaitableObject(swapchain2); - ok(!event, "Got unexpected event %p.\n", event); + semaphore = IDXGISwapChain2_GetFrameLatencyWaitableObject(swapchain2); + ok(!semaphore, "Got unexpected semaphore %p.\n", semaphore);
ref_count = IDXGISwapChain2_Release(swapchain2); ok(!ref_count, "Swap chain has %lu references left.\n", ref_count); @@ -7052,26 +7052,25 @@ static void test_frame_latency_event(IUnknown *device, BOOL is_d3d12) ok(hr == S_OK, "Got unexpected hr %#lx.\n", hr); IDXGISwapChain1_Release(swapchain1);
- event = IDXGISwapChain2_GetFrameLatencyWaitableObject(swapchain2); - ok(!!event, "Got unexpected NULL event.\n"); + semaphore = IDXGISwapChain2_GetFrameLatencyWaitableObject(swapchain2); + ok(!!semaphore, "Got unexpected NULL semaphore.\n");
/* a new duplicate handle is returned each time */ - event2 = IDXGISwapChain2_GetFrameLatencyWaitableObject(swapchain2); - ok(!!event2, "Got unexpected NULL event.\n"); - ok(event != event2, "Got the same event twice %p.\n", event); + semaphore2 = IDXGISwapChain2_GetFrameLatencyWaitableObject(swapchain2); + ok(!!semaphore2, "Got unexpected NULL semaphore.\n"); + ok(semaphore != semaphore2, "Got the same semaphore twice %p.\n", semaphore);
- ret = CloseHandle(event); + ret = CloseHandle(semaphore); ok(!!ret, "Failed to close handle, last error %lu.\n", GetLastError()); - ret = CloseHandle(event2); + ret = CloseHandle(semaphore2); ok(!!ret, "Failed to close handle, last error %lu.\n", GetLastError());
- event = IDXGISwapChain2_GetFrameLatencyWaitableObject(swapchain2); - ok(!!event, "Got unexpected NULL event.\n"); + semaphore = IDXGISwapChain2_GetFrameLatencyWaitableObject(swapchain2); + ok(!!semaphore, "Got unexpected NULL semaphore.\n");
- /* auto-reset event */ - wait_result = WaitForSingleObject(event, 0); + wait_result = WaitForSingleObject(semaphore, 0); ok(!wait_result, "Got unexpected wait result %#lx.\n", wait_result); - wait_result = WaitForSingleObject(event, 0); + wait_result = WaitForSingleObject(semaphore, 0); ok(wait_result == WAIT_TIMEOUT, "Got unexpected wait result %#lx.\n", wait_result);
hr = IDXGISwapChain2_GetMaximumFrameLatency(swapchain2, &frame_latency); @@ -7090,11 +7089,11 @@ static void test_frame_latency_event(IUnknown *device, BOOL is_d3d12) ok(hr == S_OK, "Got unexpected hr %#lx.\n", hr); ok(frame_latency == 3, "Got unexpected frame latency %#x.\n", frame_latency);
- wait_result = WaitForSingleObject(event, 0); + wait_result = WaitForSingleObject(semaphore, 0); todo_wine ok(!wait_result, "Got unexpected wait result %#lx.\n", wait_result); - wait_result = WaitForSingleObject(event, 0); + wait_result = WaitForSingleObject(semaphore, 0); todo_wine ok(!wait_result, "Got unexpected wait result %#lx.\n", wait_result); - wait_result = WaitForSingleObject(event, 100); + wait_result = WaitForSingleObject(semaphore, 100); ok(wait_result == WAIT_TIMEOUT, "Got unexpected wait result %#lx.\n", wait_result);
for (i = 0; i < 5; i++) @@ -7102,11 +7101,11 @@ static void test_frame_latency_event(IUnknown *device, BOOL is_d3d12) hr = IDXGISwapChain2_Present(swapchain2, 0, 0); ok(hr == S_OK, "Present %u failed with hr %#lx.\n", i, hr);
- wait_result = WaitForSingleObject(event, 100); + wait_result = WaitForSingleObject(semaphore, 100); ok(!wait_result, "Got unexpected wait result %#lx.\n", wait_result); }
- wait_result = WaitForSingleObject(event, 100); + wait_result = WaitForSingleObject(semaphore, 100); ok(wait_result == WAIT_TIMEOUT, "Got unexpected wait result %#lx.\n", wait_result);
ref_count = IDXGISwapChain2_Release(swapchain2);