i965: minor improvements in brw_wm_populate_key()

diff --git a/src/mesa/drivers/dri/i965/brw_wm.c b/src/mesa/drivers/dri/i965/brw_wm.c
index 24149cf..1683308 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_wm.c
+++ b/src/mesa/drivers/dri/i965/brw_wm.c
@@ -233,14 +233,14 @@ static void brw_wm_populate_key( struct brw_context *brw,
    /* _NEW_TEXTURE */
    for (i = 0; i < BRW_MAX_TEX_UNIT; i++) {
       const struct gl_texture_unit *unit = &brw->attribs.Texture->Unit[i];
-      const struct gl_texture_object *t = unit->_Current;
 
       if (unit->_ReallyEnabled) {
-        if (t->Image[0][t->BaseLevel]->InternalFormat == GL_YCBCR_MESA) {
-           key->yuvtex_mask |= 1<<i;
-           if (t->Image[0][t->BaseLevel]->TexFormat->MesaFormat == 
-                   MESA_FORMAT_YCBCR)
-               key->yuvtex_swap_mask |= 1<< i;
+         const struct gl_texture_object *t = unit->_Current;
+         const struct gl_texture_image *img = t->Image[0][t->BaseLevel];
+        if (img->InternalFormat == GL_YCBCR_MESA) {
+           key->yuvtex_mask |= 1 << i;
+           if (img->TexFormat->MesaFormat == MESA_FORMAT_YCBCR)
+               key->yuvtex_swap_mask |= 1 << i;
         }
       }
    }