[i915] don't use 4x4 filter for 1D shadowmap

diff --git a/src/mesa/drivers/dri/i915/i915_texstate.c b/src/mesa/drivers/dri/i915/i915_texstate.c
index 133514d..e489d25 100644 (file)
--- a/src/mesa/drivers/dri/i915/i915_texstate.c
+++ b/src/mesa/drivers/dri/i915/i915_texstate.c
@@ -249,8 +249,13 @@ i915_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3)
             (SS2_SHADOW_ENABLE |
              intel_translate_shadow_compare_func(tObj->CompareFunc));
 
-         minFilt = FILTER_4X4_FLAT;
-         magFilt = FILTER_4X4_FLAT;
+        if (tObj->Target == GL_TEXTURE_1D) { 
+                minFilt = FILTER_NEAREST;
+                magFilt = FILTER_NEAREST;
+        } else {
+               minFilt = FILTER_4X4_FLAT;
+               magFilt = FILTER_4X4_FLAT;
+        }
       }
 
       state[I915_TEXREG_SS2] |= ((minFilt << SS2_MIN_FILTER_SHIFT) |