i965: Fix fp fragment.position handling and enable HW part of ARB_fcc.

As with swrast, this fixes the default pixel center behavior which was
broken, and implements the previous behavior for integer.  Fixes
piglit fp-arb-fragment-coord-conventions-none.  The extension won't be
exposed until we get the GLSL part implemented.

The DRI1 origin_x/y parts are dropped since they're no longer relevant.

1 files changed, 1 insertions, 5 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_wm.c b/src/mesa/drivers/dri/i965/brw_wm.c
index 8afd1f4aef..9191c81755 100644
--- a/src/mesa/drivers/dri/i965/brw_wm.c
+++ b/src/mesa/drivers/dri/i965/brw_wm.c
@@ -336,11 +336,7 @@ static void brw_wm_populate_key( struct brw_context *brw,
     * drawable height in order to invert the Y axis.
     */
    if (fp->program.Base.InputsRead & FRAG_BIT_WPOS) {
-      if (brw->intel.driDrawable != NULL) {
-         key->origin_x = brw->intel.driDrawable->x;
-         key->origin_y = brw->intel.driDrawable->y;
-         key->drawable_height = brw->intel.driDrawable->h;
-      }
+      key->drawable_height = ctx->DrawBuffer->Height;
    }
 
    key->nr_color_regions = brw->state.nr_color_regions;