[PATCH 2/5] ddraw: Require a non-zero back buffer count for swap chains.
Henri Verbeet
hverbeet at codeweavers.com
Thu Dec 5 03:34:15 CST 2013
---
dlls/ddraw/surface.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/dlls/ddraw/surface.c b/dlls/ddraw/surface.c
index 7cb18a1..4c96da8 100644
--- a/dlls/ddraw/surface.c
+++ b/dlls/ddraw/surface.c
@@ -5647,6 +5647,13 @@ HRESULT ddraw_surface_create(struct ddraw *ddraw, const DDSURFACEDESC2 *surface_
return DDERR_INVALIDCAPS;
}
+ if (!(desc->dwFlags & DDSD_BACKBUFFERCOUNT) || !desc->dwBackBufferCount)
+ {
+ WARN("Tried to create a flippable primary surface without any back buffers.\n");
+ HeapFree(GetProcessHeap(), 0, texture);
+ return DDERR_INVALIDCAPS;
+ }
+
if (!(ddraw->cooperative_level & DDSCL_EXCLUSIVE))
{
WARN("Tried to create a flippable primary surface without DDSCL_EXCLUSIVE.\n");
--
1.7.10.4
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