From a6cc9ab493a2efa9a0ea91cddba0e85c8c8c83f1 Mon Sep 17 00:00:00 2001 From: Roland Scheidegger Date: Tue, 13 Mar 2007 19:04:28 +0100 Subject: sync up t_vp_build.c brw_vs_tnl.c a bit Bring over the optimizations for fog and normalized spot dir from t_vp_build.c to brw_vs_tnl.c. Likewise, port a fix for point size calc from brw_vs_tnl.c to t_vp_build.c (use ABS(eyez) instead of -eyez). Leave the now differing point size calcs alone though, not sure what's better (it's basically MOV, ABS, MUL, DP3 vs. ABS, MAD, MAD). --- src/mesa/drivers/dri/i965/brw_vs_tnl.c | 27 ++++++++++++--------------- 1 file changed, 12 insertions(+), 15 deletions(-) (limited to 'src/mesa/drivers/dri') diff --git a/src/mesa/drivers/dri/i965/brw_vs_tnl.c b/src/mesa/drivers/dri/i965/brw_vs_tnl.c index c05a9b5ea1..e22a26b291 100644 --- a/src/mesa/drivers/dri/i965/brw_vs_tnl.c +++ b/src/mesa/drivers/dri/i965/brw_vs_tnl.c @@ -850,14 +850,13 @@ static struct ureg calculate_light_attenuation( struct tnl_program *p, /* Calculate spot attenuation: */ if (!p->state->unit[i].light_spotcutoff_is_180) { - struct ureg spot_dir = register_param3(p, STATE_LIGHT, i, - STATE_SPOT_DIRECTION); + struct ureg spot_dir_norm = register_param3(p, STATE_INTERNAL, + STATE_SPOT_DIR_NORMALIZED, i); struct ureg spot = get_temp(p); struct ureg slt = get_temp(p); - - emit_normalize_vec3( p, spot, spot_dir ); /* XXX: precompute! */ - emit_op2(p, OPCODE_DP3, spot, 0, ureg_negate(VPpli), spot); - emit_op2(p, OPCODE_SLT, slt, 0, swizzle1(spot_dir,W), spot); + + emit_op2(p, OPCODE_DP3, spot, 0, ureg_negate(VPpli), spot_dir_norm); + emit_op2(p, OPCODE_SLT, slt, 0, swizzle1(spot_dir_norm,W), spot); emit_op2(p, OPCODE_POW, spot, 0, spot, swizzle1(attenuation, W)); emit_op2(p, OPCODE_MUL, att, 0, slt, spot); @@ -1166,7 +1165,8 @@ static void build_fog( struct tnl_program *p ) if (p->state->fog_option && p->state->tnl_do_vertex_fog) { - struct ureg params = register_param1(p, STATE_FOG_PARAMS); + struct ureg params = register_param2(p, STATE_INTERNAL, + STATE_FOG_PARAMS_OPTIMIZED); struct ureg tmp = get_temp(p); struct ureg id = get_identity_param(p); @@ -1174,8 +1174,7 @@ static void build_fog( struct tnl_program *p ) switch (p->state->fog_option) { case FOG_LINEAR: { - emit_op1(p, OPCODE_ABS, tmp, 0, input); - emit_op2(p, OPCODE_SUB, tmp, 0, swizzle1(params,Z), tmp); + emit_op3(p, OPCODE_MAD, tmp, 0, input, swizzle1(params,X), swizzle1(params,Y)); emit_op2(p, OPCODE_MUL, tmp, 0, tmp, swizzle1(params,W)); emit_op2(p, OPCODE_MAX, tmp, 0, tmp, swizzle1(id,X)); /* saturate */ emit_op2(p, OPCODE_MIN, fog, WRITEMASK_X, tmp, swizzle1(id,W)); @@ -1183,15 +1182,13 @@ static void build_fog( struct tnl_program *p ) } case FOG_EXP: emit_op1(p, OPCODE_ABS, tmp, 0, input); - emit_op2(p, OPCODE_MUL, tmp, 0, tmp, swizzle1(params,X)); - emit_op2(p, OPCODE_POW, fog, WRITEMASK_X, - register_const1f(p, M_E), ureg_negate(tmp)); + emit_op2(p, OPCODE_MUL, tmp, 0, tmp, swizzle1(params,Z)); + emit_op1(p, OPCODE_EX2, fog, WRITEMASK_X, ureg_negate(tmp)); break; case FOG_EXP2: - emit_op2(p, OPCODE_MUL, tmp, 0, input, swizzle1(params,X)); + emit_op2(p, OPCODE_MUL, tmp, 0, input, swizzle1(params,W)); emit_op2(p, OPCODE_MUL, tmp, 0, tmp, tmp); - emit_op2(p, OPCODE_POW, fog, WRITEMASK_X, - register_const1f(p, M_E), ureg_negate(tmp)); + emit_op1(p, OPCODE_EX2, fog, WRITEMASK_X, ureg_negate(tmp)); break; } -- cgit v1.2.3