Stefan Dösinger : wined3d: D3D7 vertex buffers never change their declaration.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 70831d1d2dfcbe8353e597e57f0dc39b700534f1
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=70831d1d2dfcbe8353e597e57f...

Author: Stefan Dösinger <stefan(a)codeweavers.com>
Date:   Wed Jan 10 11:43:27 2007 +0100

wined3d: D3D7 vertex buffers never change their declaration.

---

 dlls/wined3d/vertexbuffer.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/dlls/wined3d/vertexbuffer.c b/dlls/wined3d/vertexbuffer.c
index 181c244..da22469 100644
--- a/dlls/wined3d/vertexbuffer.c
+++ b/dlls/wined3d/vertexbuffer.c
@@ -165,6 +165,13 @@ inline BOOL WINAPI IWineD3DVertexBufferI
     WineDirect3DVertexStridedData strided;
     IWineD3DDeviceImpl *device = This->resource.wineD3DDevice;
 
+    /* In d3d7 the vertex buffer declaration NEVER changes because it is stored in the d3d7 vertex buffer.
+     * Once we have our declaration there is no need to look it up again.
+     */
+    if(((IWineD3DImpl *)device->wineD3D)->dxVersion == 7 && This->Flags & VBFLAG_HASDESC) {
+        return FALSE;
+    }
+
     memset(&strided, 0, sizeof(strided));
     /* There are certain vertex data types that need to be fixed up. The Vertex Buffers FVF doesn't
      * help finding them, only the vertex declaration or the device FVF can determine that at drawPrim