Signed-off-by: Józef Kucia jkucia@codeweavers.com --- dlls/d3d9/device.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/dlls/d3d9/device.c b/dlls/d3d9/device.c index 8ade5beedb45..a26d943fa309 100644 --- a/dlls/d3d9/device.c +++ b/dlls/d3d9/device.c @@ -2750,8 +2750,10 @@ static void d3d9_device_upload_sysmem_index_buffer(struct d3d9_device *device, unsigned int start_idx, unsigned int idx_count) { struct wined3d_box box = {0, 0, 0, 1, 0, 1}; - struct d3d9_vertexbuffer *d3d9_buffer; + struct wined3d_resource *dst_resource; + struct d3d9_indexbuffer *d3d9_buffer; struct wined3d_buffer *dst_buffer; + struct wined3d_resource_desc desc; enum wined3d_format_id format; unsigned int offset, idx_size; HRESULT hr; @@ -2762,11 +2764,13 @@ static void d3d9_device_upload_sysmem_index_buffer(struct d3d9_device *device, if (!(dst_buffer = wined3d_device_get_index_buffer(device->wined3d_device, &format, &offset))) ERR("Failed to get index buffer.\n"); d3d9_buffer = wined3d_buffer_get_parent(dst_buffer); + dst_resource = wined3d_buffer_get_resource(dst_buffer); + wined3d_resource_get_desc(dst_resource, &desc); idx_size = format == WINED3DFMT_R16_UINT ? 2 : 4; box.left = offset + start_idx * idx_size; - box.right = box.left + idx_count * idx_size; + box.right = min(box.left + idx_count * idx_size, desc.size); if (FAILED(hr = wined3d_device_copy_sub_resource_region(device->wined3d_device, - wined3d_buffer_get_resource(dst_buffer), 0, box.left, 0, 0, + dst_resource, 0, box.left, 0, 0, wined3d_buffer_get_resource(d3d9_buffer->wined3d_buffer), 0, &box, 0))) ERR("Failed to update buffer.\n"); }