DRM/Gallium3D: Arrays starts with zero not one

1 files changed, 3 insertions, 3 deletions

diff --git a/src/drm/cairo-drm-gallium-surface.c b/src/drm/cairo-drm-gallium-surface.c
index 4d1879af..b94dcbdc 100644
--- a/src/drm/cairo-drm-gallium-surface.c
+++ b/src/drm/cairo-drm-gallium-surface.c
@@ -1361,11 +1361,11 @@ gallium_surface_mask (void                      *abstract_surface,
 
     if (mask->type == CAIRO_PATTERN_TYPE_SOLID) {
         cairo_solid_pattern_t *solid_mask = (cairo_solid_pattern_t *) mask;
-        float alpha = surface->paint.solid_color[4];
+        float alpha = surface->paint.solid_color[3];
 
-        surface->paint.solid_color[4] = solid_mask->color.alpha;
+        surface->paint.solid_color[3] = solid_mask->color.alpha;
         status = gallium_surface_paint(abstract_surface, op, source, clip);
-        surface->paint.solid_color[4] = alpha;
+        surface->paint.solid_color[3] = alpha;
     }
 
     return status;