ddraw: Return early in d3d_device7_DrawPrimitiveVB() with a 0 vertex count.
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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@ -4256,28 +4256,28 @@ static HRESULT WINAPI d3d_device3_DrawIndexedPrimitiveStrided(IDirect3DDevice3 *
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* DDERR_INVALIDPARAMS if D3DVertexBuf is NULL
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*
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*****************************************************************************/
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static HRESULT d3d_device7_DrawPrimitiveVB(IDirect3DDevice7 *iface, D3DPRIMITIVETYPE PrimitiveType,
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IDirect3DVertexBuffer7 *D3DVertexBuf, DWORD StartVertex, DWORD NumVertices, DWORD Flags)
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static HRESULT d3d_device7_DrawPrimitiveVB(IDirect3DDevice7 *iface, D3DPRIMITIVETYPE primitive_type,
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IDirect3DVertexBuffer7 *vb, DWORD start_vertex, DWORD vertex_count, DWORD flags)
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{
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struct d3d_device *device = impl_from_IDirect3DDevice7(iface);
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struct d3d_vertex_buffer *vb = unsafe_impl_from_IDirect3DVertexBuffer7(D3DVertexBuf);
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struct d3d_vertex_buffer *vb_impl = unsafe_impl_from_IDirect3DVertexBuffer7(vb);
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HRESULT hr;
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DWORD stride;
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TRACE("iface %p, primitive_type %#x, vb %p, start_vertex %u, vertex_count %u, flags %#x.\n",
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iface, PrimitiveType, D3DVertexBuf, StartVertex, NumVertices, Flags);
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iface, primitive_type, vb, start_vertex, vertex_count, flags);
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/* Sanity checks */
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if (!vb)
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if (!vertex_count)
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{
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WARN("No Vertex buffer specified.\n");
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return DDERR_INVALIDPARAMS;
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WARN("0 vertex count.\n");
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return D3D_OK;
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}
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stride = get_flexible_vertex_size(vb->fvf);
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stride = get_flexible_vertex_size(vb_impl->fvf);
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wined3d_mutex_lock();
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wined3d_device_set_vertex_declaration(device->wined3d_device, vb->wineD3DVertexDeclaration);
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hr = wined3d_device_set_stream_source(device->wined3d_device, 0, vb->wineD3DVertexBuffer, 0, stride);
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wined3d_device_set_vertex_declaration(device->wined3d_device, vb_impl->wineD3DVertexDeclaration);
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hr = wined3d_device_set_stream_source(device->wined3d_device, 0, vb_impl->wineD3DVertexBuffer, 0, stride);
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if (FAILED(hr))
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{
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WARN("Failed to set stream source, hr %#x.\n", hr);
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@ -4286,8 +4286,8 @@ static HRESULT d3d_device7_DrawPrimitiveVB(IDirect3DDevice7 *iface, D3DPRIMITIVE
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}
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/* Now draw the primitives */
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wined3d_device_set_primitive_type(device->wined3d_device, PrimitiveType);
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hr = wined3d_device_draw_primitive(device->wined3d_device, StartVertex, NumVertices);
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wined3d_device_set_primitive_type(device->wined3d_device, primitive_type);
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hr = wined3d_device_draw_primitive(device->wined3d_device, start_vertex, vertex_count);
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wined3d_mutex_unlock();
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