diff options
| author | Zhenyu Wang <[email protected]> | 2010-09-25 10:50:24 +0800 |
|---|---|---|
| committer | Zhenyu Wang <[email protected]> | 2010-09-28 15:58:21 +0800 |
| commit | 15a8e7ec90433eea72416793c263febff078c888 (patch) | |
| tree | df7f4865502372c2d484b590364e40abcfa67f29 | |
| parent | 85fa900b932243785e528e73fe119c27fa1988c4 (diff) | |
i965: fix pixel w interpolation on sandybridge
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_emit.c | 20 |
1 files changed, 16 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_emit.c b/src/mesa/drivers/dri/i965/brw_wm_emit.c index d5219a3d116..f52372ee46f 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_emit.c +++ b/src/mesa/drivers/dri/i965/brw_wm_emit.c @@ -269,6 +269,13 @@ void emit_pixel_w(struct brw_wm_compile *c, { struct brw_compile *p = &c->func; struct intel_context *intel = &p->brw->intel; + struct brw_reg src; + struct brw_reg temp_dst; + + if (intel->gen >= 6) + temp_dst = dst[3]; + else + temp_dst = brw_message_reg(2); assert(intel->gen < 6); @@ -282,24 +289,29 @@ void emit_pixel_w(struct brw_wm_compile *c, * result straight into a message reg. */ if (can_do_pln(intel, deltas)) { - brw_PLN(p, brw_message_reg(2), interp3, deltas[0]); + brw_PLN(p, temp_dst, interp3, deltas[0]); } else { brw_LINE(p, brw_null_reg(), interp3, deltas[0]); - brw_MAC(p, brw_message_reg(2), suboffset(interp3, 1), deltas[1]); + brw_MAC(p, temp_dst, suboffset(interp3, 1), deltas[1]); } /* Calc w */ + if (intel->gen >= 6) + src = temp_dst; + else + src = brw_null_reg(); + if (c->dispatch_width == 16) { brw_math_16(p, dst[3], BRW_MATH_FUNCTION_INV, BRW_MATH_SATURATE_NONE, - 2, brw_null_reg(), + 2, src, BRW_MATH_PRECISION_FULL); } else { brw_math(p, dst[3], BRW_MATH_FUNCTION_INV, BRW_MATH_SATURATE_NONE, - 2, brw_null_reg(), + 2, src, BRW_MATH_DATA_VECTOR, BRW_MATH_PRECISION_FULL); } |