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authorBrian <brian@yutani.localnet.net>2007-03-21 11:57:30 -0600
committerBrian <brian@yutani.localnet.net>2007-03-21 11:57:30 -0600
commit23d31efc167f09d47635352f697ffcb087d3ebbd (patch)
tree782f5bdcda8a4374501cae05a94a024fe1c26777 /src/mesa/tnl
parent180cc2f8458c13ce415f7cdf9a425ae59cb6ad8b (diff)
parent88db19a48412cbe89196b1cc06e8ecf8ccae78b0 (diff)
merge from master
Diffstat (limited to 'src/mesa/tnl')
-rw-r--r--src/mesa/tnl/t_vp_build.c23
1 files changed, 16 insertions, 7 deletions
diff --git a/src/mesa/tnl/t_vp_build.c b/src/mesa/tnl/t_vp_build.c
index f9e5045be7..8b8bb3a173 100644
--- a/src/mesa/tnl/t_vp_build.c
+++ b/src/mesa/tnl/t_vp_build.c
@@ -853,7 +853,7 @@ static struct ureg calculate_light_attenuation( struct tnl_program *p,
/* Need to add some addtional parameters to allow lighting in object
- * space - STATE_SPOT_DIRECTION and STATE_HALF implicitly assume eye
+ * space - STATE_SPOT_DIRECTION and STATE_HALF_VECTOR implicitly assume eye
* space lighting.
*/
static void build_lighting( struct tnl_program *p )
@@ -942,7 +942,14 @@ static void build_lighting( struct tnl_program *p )
*/
VPpli = register_param3(p, STATE_LIGHT, i,
STATE_POSITION_NORMALIZED);
- half = register_param3(p, STATE_LIGHT, i, STATE_HALF_VECTOR);
+ if (p->state->light_local_viewer) {
+ struct ureg eye_hat = get_eye_position_normalized(p);
+ half = get_temp(p);
+ emit_op2(p, OPCODE_SUB, half, 0, VPpli, eye_hat);
+ emit_normalize_vec3(p, half, half);
+ } else {
+ half = register_param3(p, STATE_LIGHT, i, STATE_HALF_VECTOR);
+ }
}
else {
struct ureg Ppli = register_param3(p, STATE_LIGHT, i,
@@ -1325,14 +1332,16 @@ static void build_pointsize( struct tnl_program *p )
struct ureg out = register_output(p, VERT_RESULT_PSIZ);
struct ureg ut = get_temp(p);
+ /* dist = |eyez| */
+ emit_op1(p, OPCODE_ABS, ut, WRITEMASK_Y, swizzle1(eye, Z));
/* p1 + dist * (p2 + dist * p3); */
- emit_op3(p, OPCODE_MAD, ut, 0, negate(swizzle1(eye, Z)),
+ emit_op3(p, OPCODE_MAD, ut, WRITEMASK_X, swizzle1(ut, Y),
swizzle1(state_attenuation, Z), swizzle1(state_attenuation, Y));
- emit_op3(p, OPCODE_MAD, ut, 0, negate(swizzle1(eye, Z)),
+ emit_op3(p, OPCODE_MAD, ut, WRITEMASK_X, swizzle1(ut, Y),
ut, swizzle1(state_attenuation, X));
/* 1 / sqrt(factor) */
- emit_op1(p, OPCODE_RSQ, ut, 0, ut );
+ emit_op1(p, OPCODE_RSQ, ut, WRITEMASK_X, ut );
#if 1
/* out = pointSize / sqrt(factor) */
@@ -1340,8 +1349,8 @@ static void build_pointsize( struct tnl_program *p )
#else
/* not sure, might make sense to do clamping here,
but it's not done in t_vb_points neither */
- emit_op2(p, OPCODE_MUL, ut, 0, ut, state_size);
- emit_op2(p, OPCODE_MAX, ut, 0, ut, swizzle1(state_size, Y));
+ emit_op2(p, OPCODE_MUL, ut, WRITEMASK_X, ut, state_size);
+ emit_op2(p, OPCODE_MAX, ut, WRITEMASK_X, ut, swizzle1(state_size, Y));
emit_op2(p, OPCODE_MIN, out, WRITEMASK_X, ut, swizzle1(state_size, Z));
#endif