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authorJose Fonseca <[email protected]>2002-04-19 21:27:12 +0000
committerJose Fonseca <[email protected]>2002-04-19 21:27:12 +0000
commit04df3bbe8e12d7ac44936d5de75933b28a51a8e3 (patch)
treebf54b6553ab1cd4e22f6e909115d82550026fa93 /src/mesa/x86/mmx_blend.S
parent3fe2bb8933c15a7091838fd982dbad402fe6ad43 (diff)
Re-scheduling of the instructions according to the MMX pairing rules. This is dificult to quantify but the improvemnet reaches about of 0.7% in some cases in a Pentium III. In older Pentiums the improvements could be quite substancial due less capable integer pipelines.
Diffstat (limited to 'src/mesa/x86/mmx_blend.S')
-rw-r--r--src/mesa/x86/mmx_blend.S78
1 files changed, 36 insertions, 42 deletions
diff --git a/src/mesa/x86/mmx_blend.S b/src/mesa/x86/mmx_blend.S
index 259d71c2fa0..9fe3e717961 100644
--- a/src/mesa/x86/mmx_blend.S
+++ b/src/mesa/x86/mmx_blend.S
@@ -5,9 +5,6 @@
#include "matypes.h"
-/* FIXME: The pairing rules must be checked as they aren't being fully obeyed.
- */
-
/* integer multiplication - alpha plus one
*
* makes the following approximation to the division (Sree)
@@ -24,9 +21,9 @@
*/
#define GMB_MULT_AP1( MP1, MA1, MP2, MA2, MX1 ) \
PSUBW ( MX1, MA1 ) /* a1 + 1 | a1 + 1 | a1 + 1 | a1 + 1 */ ;\
-TWO(PSUBW ( MX1, MA2 )) /* a2 + 1 | a2 + 1 | a2 + 1 | a2 + 1 */ ;\
- ;\
PMULLW ( MP1, MA1 ) /* t1 = p1*a1 */ ;\
+ ;\
+TWO(PSUBW ( MX1, MA2 )) /* a2 + 1 | a2 + 1 | a2 + 1 | a2 + 1 */ ;\
TWO(PMULLW ( MP2, MA2 )) /* t2 = p2*a2 */ ;\
;\
PSRLW ( CONST(8), MA1 ) /* t1 >> 8 ~= t1/255 */ ;\
@@ -51,15 +48,15 @@ TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 ~= t2/255
TWO(PMULLW ( MP2, MA2 )) /* t2 = p2*a2 */ ;\
;\
MOVQ ( MA1, MP1 ) ;\
-TWO(MOVQ ( MA2, MP2 )) ;\
+ PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\
;\
- PSRLW ( CONST(8), MP1 ) /* t1 >> 8 */ ;\
-TWO(PSRLW ( CONST(8), MP2 )) /* t2 >> 8 */ ;\
+TWO(MOVQ ( MA2, MP2 )) ;\
+TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\
;\
PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\
-TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\
- ;\
PSRLW ( CONST(8), MA1 ) /* sa1 | sb1 | sg1 | sr1 */ ;\
+ ;\
+TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\
TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2 */
@@ -76,21 +73,21 @@ TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2
*/
#define GMB_MULT_GSR( MP1, MA1, MP2, MA2, M80 ) \
PMULLW ( MP1, MA1 ) /* t1 = p1*a1 */ ;\
-TWO(PMULLW ( MP2, MA2 )) /* t2 = p2*a2 */ ;\
- ;\
PADDW ( M80, MA1 ) /* t1 += 0x80 */ ;\
+ ;\
+TWO(PMULLW ( MP2, MA2 )) /* t2 = p2*a2 */ ;\
TWO(PADDW ( M80, MA2 )) /* t2 += 0x80 */ ;\
;\
MOVQ ( MA1, MP1 ) ;\
-TWO(MOVQ ( MA2, MP2 )) ;\
+ PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\
;\
- PSRLW ( CONST(8), MP1 ) /* t1 >> 8 */ ;\
-TWO(PSRLW ( CONST(8), MP2 )) /* t2 >> 8 */ ;\
+TWO(MOVQ ( MA2, MP2 )) ;\
+TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\
;\
PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\
-TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\
- ;\
PSRLW ( CONST(8), MA1 ) /* sa1 | sb1 | sg1 | sr1 */ ;\
+ ;\
+TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\
TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2 */
@@ -98,19 +95,18 @@ TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2
*/
#define GMB_LERP_GS( MP1, MQ1, MA1, MP2, MQ2, MA2) \
PSUBW ( MQ1, MP1 ) /* pa1 - qa1 | pb1 - qb1 | pg1 - qg1 | pr1 - qr1 */ ;\
-TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\
- ;\
PSLLW ( CONST(8), MQ1 ) /* q1 << 8 */ ;\
-TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\
- ;\
PMULLW ( MP1, MA1 ) /* t1 = (q1 - p1)*pa1 */ ;\
+ ;\
+TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\
+TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\
TWO(PMULLW ( MP2, MA2 )) /* t2 = (q2 - p2)*pa2 */ ;\
;\
MOVQ ( MA1, MP1 ) ;\
-TWO(MOVQ ( MA2, MP2 )) ;\
+ PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\
;\
- PSRLW ( CONST(8), MP1 ) /* t1 >> 8 */ ;\
-TWO(PSRLW ( CONST(8), MP2 )) /* t2 >> 8 */ ;\
+TWO(MOVQ ( MA2, MP2 )) ;\
+TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\
;\
PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\
TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\
@@ -130,12 +126,11 @@ TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2
*/
#define GMB_LERP_GSR( MP1, MQ1, MA1, MP2, MQ2, MA2, M80) \
PSUBW ( MQ1, MP1 ) /* pa1 - qa1 | pb1 - qb1 | pg1 - qg1 | pr1 - qr1 */ ;\
-TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\
- ;\
PSLLW ( CONST(8), MQ1 ) /* q1 << 8 */ ;\
-TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\
- ;\
PMULLW ( MP1, MA1 ) /* t1 = (q1 - p1)*pa1 */ ;\
+ ;\
+TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\
+TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\
TWO(PMULLW ( MP2, MA2 )) /* t2 = (q2 - p2)*pa2 */ ;\
;\
PSRLW ( CONST(15), MP1 ) /* q1 > p1 ? 1 : 0 */ ;\
@@ -151,10 +146,10 @@ TWO(PSUBW ( MP2, MA2 )) /* t2 -=? 0x100
TWO(PADDW ( M80, MA2 )) /* t2 += 0x80 */ ;\
;\
MOVQ ( MA1, MP1 ) ;\
-TWO(MOVQ ( MA2, MP2 )) ;\
+ PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\
;\
- PSRLW ( CONST(8), MP1 ) /* t1 >> 8 */ ;\
-TWO(PSRLW ( CONST(8), MP2 )) /* t2 >> 8 */ ;\
+TWO(MOVQ ( MA2, MP2 )) ;\
+TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\
;\
PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\
TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\
@@ -176,25 +171,24 @@ TWO(PSRLW ( CONST(8), MA2 )) /* sa2 | sb2 | sg2 | sr2
*/
#define GMB_LERP_GSC( MP1, MQ1, MA1, MP2, MQ2, MA2) \
PSUBW ( MQ1, MP1 ) /* pa1 - qa1 | pb1 - qb1 | pg1 - qg1 | pr1 - qr1 */ ;\
-TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\
- ;\
PSLLW ( CONST(8), MQ1 ) /* q1 << 8 */ ;\
-TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\
- ;\
PMULLW ( MP1, MA1 ) /* t1 = (q1 - p1)*pa1 */ ;\
+ ;\
+TWO(PSUBW ( MQ2, MP2 )) /* pa2 - qa2 | pb2 - qb2 | pg2 - qg2 | pr2 - qr2 */ ;\
+TWO(PSLLW ( CONST(8), MQ2 )) /* q2 << 8 */ ;\
TWO(PMULLW ( MP2, MA2 )) /* t2 = (q2 - p2)*pa2 */ ;\
;\
MOVQ ( MA1, MP1 ) ;\
-TWO(MOVQ ( MA2, MP2 )) ;\
+ PSRLW ( CONST(8), MA1 ) /* t1 >> 8 */ ;\
;\
- PSRLW ( CONST(8), MP1 ) /* t1 >> 8 */ ;\
-TWO(PSRLW ( CONST(8), MP2 )) /* t2 >> 8 */ ;\
+TWO(MOVQ ( MA2, MP2 )) ;\
+TWO(PSRLW ( CONST(8), MA2 )) /* t2 >> 8 */ ;\
;\
- PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\
-TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\
+ PADDW ( MA1, MP1 ) /* t1 + (t1 >> 8) ~= (t1/255) << 8 */ ;\
+ PSRLW ( CONST(7), MA1 ) /* t1 >> 15 */ ;\
;\
- PSRLW ( CONST(7), MP1 ) /* t1 >> 15 */ ;\
-TWO(PSRLW ( CONST(7), MP2 )) /* t2 >> 15 */ ;\
+TWO(PADDW ( MA2, MP2 )) /* t2 + (t2 >> 8) ~= (t2/255) << 8 */ ;\
+TWO(PSRLW ( CONST(7), MA2 )) /* t2 >> 15 */ ;\
;\
PADDW ( MP1, MA1 ) /* t1 + (t1 >> 8) + (t1 >>15) ~= (t1/255) << 8 */ ;\
TWO(PADDW ( MP2, MA2 )) /* t2 + (t2 >> 8) + (t2 >>15) ~= (t2/255) << 8 */ ;\
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