wined3d: Explicitly calculate the sub-resource layer in surface_download_data().

Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

wined3d: Explicitly calculate the sub-resource layer in surface_download_data().
cd53e81a · Henri Verbeet · Alexandre Julliard · cb4b7574 · cd53e81a
Commit cd53e81a authored Feb 23, 2018 by Henri Verbeet Committed by Alexandre Julliard Feb 23, 2018
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surface.c dlls/wined3d/surface.c +2 -1

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--- a/dlls/wined3d/surface.c
+++ b/dlls/wined3d/surface.c
@@ -748,7 +748,8 @@ static void surface_download_data(struct wined3d_surface *surface, const struct 
    }
    else if (temporary_mem)
    {
-        void *src_data = temporary_mem + surface->texture_layer * sub_resource->size;
+        unsigned int layer = sub_resource_idx / texture->level_count;
+        void *src_data = temporary_mem + layer * sub_resource->size;
        if (data.buffer_object)
        {
            GL_EXTCALL(glBindBuffer(GL_PIXEL_PACK_BUFFER, data.buffer_object));