Improve robustness of Context::finish and flush

src/common/version.h

 #define MAJOR_VERSION 0
 #define MINOR_VERSION 0
 #define BUILD_VERSION 0
-#define BUILD_REVISION 651
+#define BUILD_REVISION 652
 
 #define STRINGIFY(x) #x
 #define MACRO_STRINGIFY(x) STRINGIFY(x)

src/libGLESv2/Context.cpp

@@ -2697,23 +2697,44 @@ void Context::finish()
     egl::Display *display = getDisplay();
     IDirect3DDevice9 *device = getDevice();
     IDirect3DQuery9 *occlusionQuery = NULL;
+    HRESULT result;
 
-    HRESULT result = device->CreateQuery(D3DQUERYTYPE_OCCLUSION, &occlusionQuery);
-
+    result = device->CreateQuery(D3DQUERYTYPE_OCCLUSION, &occlusionQuery);
+    if (FAILED(result))
+    {
+        ERR("CreateQuery failed hr=%x\n", result);
         if (result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY)
         {
             return error(GL_OUT_OF_MEMORY);
         }
+        ASSERT(false);
+        return;
+    }
 
-    ASSERT(SUCCEEDED(result));
+    IDirect3DStateBlock9 *savedState = NULL;
+    result = device->CreateStateBlock(D3DSBT_ALL, &savedState);
+    if (FAILED(result))
+    {
+        ERR("CreateStateBlock failed hr=%x\n", result);
+        occlusionQuery->Release();
 
-    if (occlusionQuery)
+        if (result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY)
         {
-        IDirect3DStateBlock9 *savedState = NULL;
-        device->CreateStateBlock(D3DSBT_ALL, &savedState);
+            return error(GL_OUT_OF_MEMORY);
+        }
+        ASSERT(false);
+        return;
+    }
 
-        HRESULT result = occlusionQuery->Issue(D3DISSUE_BEGIN);
-        ASSERT(SUCCEEDED(result));
+    result = occlusionQuery->Issue(D3DISSUE_BEGIN);
+    if (FAILED(result))
+    {
+        ERR("occlusionQuery->Issue(BEGIN) failed hr=%x\n", result);
+        occlusionQuery->Release();
+        savedState->Release();
+        ASSERT(false);
+        return;
+    }
 
     // Render something outside the render target
     device->SetPixelShader(NULL);
@@ -2724,21 +2745,29 @@ void Context::finish()
     device->DrawPrimitiveUP(D3DPT_POINTLIST, 1, data, sizeof(data));
 
     result = occlusionQuery->Issue(D3DISSUE_END);
-        ASSERT(SUCCEEDED(result));
+    if (FAILED(result))
+    {
+        ERR("occlusionQuery->Issue(END) failed hr=%x\n", result);
+        occlusionQuery->Release();
+        savedState->Apply();
+        savedState->Release();
+        ASSERT(false);
+        return;
+    }
 
-        while (occlusionQuery->GetData(NULL, 0, D3DGETDATA_FLUSH) == S_FALSE)
+    while ((result = occlusionQuery->GetData(NULL, 0, D3DGETDATA_FLUSH)) == S_FALSE)
     {
         // Keep polling, but allow other threads to do something useful first
         Sleep(0);
     }
 
     occlusionQuery->Release();
-
-        if (savedState)
-        {
     savedState->Apply();
     savedState->Release();
-        }
+
+    if (result == D3DERR_DEVICELOST)
+    {
+        error(GL_OUT_OF_MEMORY);
     }
 }
 
@@ -2746,20 +2775,28 @@ void Context::flush()
 {
     IDirect3DDevice9 *device = getDevice();
     IDirect3DQuery9 *eventQuery = NULL;
+    HRESULT result;
 
-    HRESULT result = device->CreateQuery(D3DQUERYTYPE_EVENT, &eventQuery);
-
+    result = device->CreateQuery(D3DQUERYTYPE_EVENT, &eventQuery);
+    if (FAILED(result))
+    {
+        ERR("CreateQuery failed hr=%x\n", result);
         if (result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY)
         {
             return error(GL_OUT_OF_MEMORY);
         }
+        ASSERT(false);
+        return;
+    }
 
-    ASSERT(SUCCEEDED(result));
-
-    if (eventQuery)
+    result = eventQuery->Issue(D3DISSUE_END);
+    if (FAILED(result))
     {
-        HRESULT result = eventQuery->Issue(D3DISSUE_END);
-        ASSERT(SUCCEEDED(result));
+        ERR("eventQuery->Issue(END) failed hr=%x\n", result);
+        ASSERT(false);
+        eventQuery->Release();
+        return;
+    }
 
     result = eventQuery->GetData(NULL, 0, D3DGETDATA_FLUSH);
     eventQuery->Release();
@@ -2768,7 +2805,6 @@ void Context::flush()
     {
         error(GL_OUT_OF_MEMORY);
     }
-    }
 }
 
 void Context::drawClosingLine(unsigned int first, unsigned int last)