wined3d: Don't set WINED3DUSAGE_RENDERTARGET on the front buffer.

We never render directly to the front buffer, and in case of e.g. a P8 front buffer, we would fail surface creation if we were to enforce format restrictions.

wined3d: Don't set WINED3DUSAGE_RENDERTARGET on the front buffer.
6325f3dd · Henri Verbeet · Alexandre Julliard · 99092c27 · 6325f3dd
Commit 6325f3dd authored Sep 04, 2013 by Henri Verbeet Committed by Alexandre Julliard Sep 04, 2013
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swapchain.c dlls/wined3d/swapchain.c +2 -1

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--- a/dlls/wined3d/swapchain.c
+++ b/dlls/wined3d/swapchain.c
@@ -882,7 +882,7 @@ static HRESULT swapchain_init(struct wined3d_swapchain *swapchain, struct wined3
    surface_desc.format = swapchain->desc.backbuffer_format;
    surface_desc.multisample_type = swapchain->desc.multisample_type;
    surface_desc.multisample_quality = swapchain->desc.multisample_quality;
-    surface_desc.usage = WINED3DUSAGE_RENDERTARGET;
+    surface_desc.usage = 0;
    surface_desc.pool = WINED3D_POOL_DEFAULT;
    surface_desc.width = swapchain->desc.backbuffer_width;
    surface_desc.height = swapchain->desc.backbuffer_height;
@@ -992,6 +992,7 @@ static HRESULT swapchain_init(struct wined3d_swapchain *swapchain, struct wined3
            goto err;
        }
+        surface_desc.usage |= WINED3DUSAGE_RENDERTARGET;
        for (i = 0; i < swapchain->desc.backbuffer_count; ++i)
        {
            TRACE("Creating back buffer %u.\n", i);