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Eliminate a couple of swizzles.

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This commit is contained in:
Keith Whitwell 2005-05-18 14:03:02 +00:00
parent dd4c1dd038
commit 96582f4f28
1 changed files with 4 additions and 3 deletions
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7
src/mesa/tnl/t_vp_build.c
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@ -209,6 +209,7 @@ static struct ureg register_const4f( struct tnl_program *p,
}
#define register_const1f(p, s0) register_const4f(p, s0, 0, 0, 1)
#define register_scalar_const(p, s0) register_const4f(p, s0, s0, s0, s0)
#define register_const2f(p, s0, s1) register_const4f(p, s0, s1, 0, 1)
#define register_const3f(p, s0, s1, s2) register_const4f(p, s0, s1, s2, 1)
@ -981,7 +982,7 @@ static void build_sphere_texgen( struct tnl_program *p,
struct ureg normal = get_eye_normal(p);
struct ureg eye_hat = get_eye_position_normalized(p);
struct ureg tmp = get_temp(p);
struct ureg half = register_const1f(p, .5);
struct ureg half = register_scalar_const(p, .5);
struct ureg r = get_temp(p);
struct ureg inv_m = get_temp(p);
struct ureg id = get_identity_param(p);
@ -1007,9 +1008,9 @@ static void build_sphere_texgen( struct tnl_program *p,
/* 2/m */
emit_op1(p, VP_OPCODE_RSQ, tmp, 0, tmp);
/* 1/m */
emit_op2(p, VP_OPCODE_MUL, inv_m, 0, tmp, swizzle1(half,X));
emit_op2(p, VP_OPCODE_MUL, inv_m, 0, tmp, half);
/* r/m + 1/2 */
emit_op3(p, VP_OPCODE_MAD, dest, writemask, r, inv_m, swizzle1(half,X));
emit_op3(p, VP_OPCODE_MAD, dest, writemask, r, inv_m, half);
release_temp(p, tmp);
release_temp(p, r);