The PRMs say that <src0> region must be a replicated scalar (with HorzStride = VertStride = 0).
but apparently that doesn't actually apply to all generations. I did notice when implementing the optimization later in this series that G45 and ILK needed this regioning. --- src/mesa/drivers/dri/i965/brw_eu_emit.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/src/mesa/drivers/dri/i965/brw_eu_emit.c b/src/mesa/drivers/dri/i965/brw_eu_emit.c index c475393..782706a 100644 --- a/src/mesa/drivers/dri/i965/brw_eu_emit.c +++ b/src/mesa/drivers/dri/i965/brw_eu_emit.c @@ -1040,7 +1040,6 @@ ALU2(DP4) ALU2(DPH) ALU2(DP3) ALU2(DP2) -ALU2(LINE) ALU2(PLN) ALU3F(MAD) ALU3F(LRP) @@ -1136,6 +1135,16 @@ brw_MUL(struct brw_compile *p, struct brw_reg dest, } brw_inst * +brw_LINE(struct brw_compile *p, struct brw_reg dest, + struct brw_reg src0, struct brw_reg src1) +{ + src0.vstride = BRW_VERTICAL_STRIDE_0; + src0.width = BRW_WIDTH_1; + src0.hstride = BRW_HORIZONTAL_STRIDE_0; + return brw_alu2(p, BRW_OPCODE_LINE, dest, src0, src1); +} + +brw_inst * brw_F32TO16(struct brw_compile *p, struct brw_reg dst, struct brw_reg src) { const struct brw_context *brw = p->brw; -- 2.0.4 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev