[PATCH 4/6] d3d9: Do not decrease swapchain refcount when it is already 0.
Józef Kucia
jkucia at codeweavers.com
Mon Feb 13 06:07:35 CST 2017
Signed-off-by: Józef Kucia <jkucia at codeweavers.com>
---
dlls/d3d9/swapchain.c | 9 ++++++++-
dlls/d3d9/tests/device.c | 40 ++++++++++++++++++++++------------------
2 files changed, 30 insertions(+), 19 deletions(-)
diff --git a/dlls/d3d9/swapchain.c b/dlls/d3d9/swapchain.c
index 91ceaf0..8f3803a 100644
--- a/dlls/d3d9/swapchain.c
+++ b/dlls/d3d9/swapchain.c
@@ -90,8 +90,15 @@ static ULONG WINAPI d3d9_swapchain_AddRef(IDirect3DSwapChain9Ex *iface)
static ULONG WINAPI d3d9_swapchain_Release(IDirect3DSwapChain9Ex *iface)
{
struct d3d9_swapchain *swapchain = impl_from_IDirect3DSwapChain9Ex(iface);
- ULONG refcount = InterlockedDecrement(&swapchain->refcount);
+ ULONG refcount;
+ if (!swapchain->refcount)
+ {
+ WARN("Swapchain does not have any references.\n");
+ return 0;
+ }
+
+ refcount = InterlockedDecrement(&swapchain->refcount);
TRACE("%p decreasing refcount to %u.\n", iface, refcount);
if (!refcount)
diff --git a/dlls/d3d9/tests/device.c b/dlls/d3d9/tests/device.c
index 27f3a1d..5aba575 100644
--- a/dlls/d3d9/tests/device.c
+++ b/dlls/d3d9/tests/device.c
@@ -1437,15 +1437,15 @@ static void test_refcount(void)
CHECK_CALL(hr, "GetSwapChain", device, ++refcount);
if (pSwapChain)
{
- CHECK_REFCOUNT( pSwapChain, 1);
+ CHECK_REFCOUNT(pSwapChain, 1);
hr = IDirect3DDevice9_GetRenderTarget(device, 0, &pRenderTarget);
CHECK_CALL(hr, "GetRenderTarget", device, ++refcount);
- CHECK_REFCOUNT( pSwapChain, 1);
- if(pRenderTarget)
+ CHECK_REFCOUNT(pSwapChain, 1);
+ if (pRenderTarget)
{
- CHECK_SURFACE_CONTAINER( pRenderTarget, IID_IDirect3DSwapChain9, pSwapChain);
- CHECK_REFCOUNT( pRenderTarget, 1);
+ CHECK_SURFACE_CONTAINER(pRenderTarget, IID_IDirect3DSwapChain9, pSwapChain);
+ CHECK_REFCOUNT(pRenderTarget, 1);
CHECK_ADDREF_REFCOUNT(pRenderTarget, 2);
CHECK_REFCOUNT(device, refcount);
@@ -1454,9 +1454,9 @@ static void test_refcount(void)
hr = IDirect3DDevice9_GetRenderTarget(device, 0, &pRenderTarget);
CHECK_CALL(hr, "GetRenderTarget", device, refcount);
- CHECK_REFCOUNT( pRenderTarget, 2);
- CHECK_RELEASE_REFCOUNT( pRenderTarget, 1);
- CHECK_RELEASE_REFCOUNT( pRenderTarget, 0);
+ CHECK_REFCOUNT(pRenderTarget, 2);
+ CHECK_RELEASE_REFCOUNT(pRenderTarget, 1);
+ CHECK_RELEASE_REFCOUNT(pRenderTarget, 0);
CHECK_REFCOUNT(device, --refcount);
/* The render target is released with the device, so AddRef with refcount=0 is fine here. */
@@ -1484,7 +1484,7 @@ static void test_refcount(void)
hr = IDirect3DDevice9_GetDepthStencilSurface(device, &pStencilSurface);
CHECK_CALL(hr, "GetDepthStencilSurface", device, ++refcount);
- CHECK_REFCOUNT( pSwapChain, 1);
+ CHECK_REFCOUNT(pSwapChain, 1);
if (pStencilSurface)
{
CHECK_SURFACE_CONTAINER(pStencilSurface, IID_IDirect3DDevice9, device);
@@ -1508,14 +1508,18 @@ static void test_refcount(void)
pStencilSurface = NULL;
}
- CHECK_RELEASE_REFCOUNT( pSwapChain, 0);
+ CHECK_RELEASE_REFCOUNT(pSwapChain, 0);
CHECK_REFCOUNT(device, --refcount);
+ CHECK_RELEASE_REFCOUNT(pSwapChain, 0);
+ CHECK_RELEASE_REFCOUNT(pSwapChain, 0);
/* The implicit swapchwin is released with the device, so AddRef with refcount=0 is fine here. */
CHECK_ADDREF_REFCOUNT(pSwapChain, 1);
CHECK_REFCOUNT(device, ++refcount);
CHECK_RELEASE_REFCOUNT(pSwapChain, 0);
CHECK_REFCOUNT(device, --refcount);
+ CHECK_RELEASE_REFCOUNT(pSwapChain, 0);
+ CHECK_RELEASE_REFCOUNT(pSwapChain, 0);
pSwapChain = NULL;
}
@@ -1524,7 +1528,7 @@ static void test_refcount(void)
CHECK_CALL(hr, "CreateIndexBuffer", device, ++refcount );
if(pIndexBuffer)
{
- tmp = get_refcount( (IUnknown *)pIndexBuffer );
+ tmp = get_refcount((IUnknown *)pIndexBuffer);
hr = IDirect3DDevice9_SetIndices(device, pIndexBuffer);
CHECK_CALL( hr, "SetIndices", pIndexBuffer, tmp);
@@ -1641,17 +1645,17 @@ static void test_refcount(void)
d3dpp.AutoDepthStencilFormat = D3DFMT_D24S8;
hr = IDirect3DDevice9_CreateAdditionalSwapChain(device, &d3dpp, &pSwapChain);
CHECK_CALL(hr, "CreateAdditionalSwapChain", device, ++refcount);
- if(pSwapChain)
+ if (pSwapChain)
{
/* check implicit back buffer */
hr = IDirect3DSwapChain9_GetBackBuffer(pSwapChain, 0, 0, &pBackBuffer);
CHECK_CALL(hr, "GetBackBuffer", device, ++refcount);
- CHECK_REFCOUNT( pSwapChain, 1);
- if(pBackBuffer)
+ CHECK_REFCOUNT(pSwapChain, 1);
+ if (pBackBuffer)
{
- CHECK_SURFACE_CONTAINER( pBackBuffer, IID_IDirect3DSwapChain9, pSwapChain);
- CHECK_REFCOUNT( pBackBuffer, 1);
- CHECK_RELEASE_REFCOUNT( pBackBuffer, 0);
+ CHECK_SURFACE_CONTAINER(pBackBuffer, IID_IDirect3DSwapChain9, pSwapChain);
+ CHECK_REFCOUNT(pBackBuffer, 1);
+ CHECK_RELEASE_REFCOUNT(pBackBuffer, 0);
CHECK_REFCOUNT(device, --refcount);
/* The back buffer is released with the swapchain, so AddRef with refcount=0 is fine here. */
@@ -1663,7 +1667,7 @@ static void test_refcount(void)
CHECK_RELEASE_REFCOUNT(pBackBuffer, 0);
pBackBuffer = NULL;
}
- CHECK_REFCOUNT( pSwapChain, 1);
+ CHECK_REFCOUNT(pSwapChain, 1);
}
hr = IDirect3DDevice9_CreateQuery(device, D3DQUERYTYPE_EVENT, &pQuery);
CHECK_CALL(hr, "CreateQuery", device, ++refcount);
--
2.10.2
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