diff options
Diffstat (limited to 'src/post/goom/ppc_zoom_ultimate.s')
| -rw-r--r-- | src/post/goom/ppc_zoom_ultimate.s | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/src/post/goom/ppc_zoom_ultimate.s b/src/post/goom/ppc_zoom_ultimate.s index 7b349906e..da252c676 100644 --- a/src/post/goom/ppc_zoom_ultimate.s +++ b/src/post/goom/ppc_zoom_ultimate.s @@ -68,6 +68,8 @@ lwz r29,4(r31) ; py lwz r8,0(r30) ; px2 lwz r10,4(r30) ; py2 +b L1 +.align 5 L1: ; computes dynamically the position to fetch @@ -200,8 +202,20 @@ lwz r10,4(r30) ; py2 ;********************* lis r17,0x0F01 +b L100 +.align 5 L100: +addi r6,r6,4 + +; Optimization to ensure the destination buffer +; won't be loaded into the data cache +rlwinm. r0,r6,0,27,31 +bne+ L500 +dcbz 0,r6 +;dcba 0,r6 +L500: + ; computes dynamically the position to fetch ;mullw r8,r8,r29 ;mullw r2,r2,r29 @@ -251,7 +265,8 @@ add r2,r2,r20 ; Adds one line for future load of col3 and col4 and r8, r25,r12 ; Masks col1 channels 1 & 3 : 0x00XX00XX rlwinm r24,r10,8,24,31 ; Isolates coef4 (44?????? -> 00000044) dst r2,r17,2 -andi. r25,r25,0xFF00 ; Masks col1 channel 2 : 0x0000XX00 +rlwinm r25,r25,0,16,23 ; Masks col1 channel 2 : 0x0000XX00 +;andi. r25,r25,0xFF00 ; Masks col1 channel 2 : 0x0000XX00 mullw r8, r8, r21 ; Applies coef1 on col1 channels 1 & 3 @@ -260,14 +275,16 @@ and r10,r26,r12 ; Masks col2 channels 1 & 3 : 0x00XX00XX lwz r27,0(r2) ; Loads col3 -> r27 mullw r10,r10,r22 ; Applies coef2 on col2 channels 1 & 3 mullw r25,r25,r21 ; Applies coef1 on col1 channel 2 -andi. r29,r26,0xFF00 ; Masks col2 channel 2 : 0x0000XX00 +rlwinm r29,r26,0,16,23 ; Masks col2 channel 2 : 0x0000XX00 +;andi. r29,r26,0xFF00 ; Masks col2 channel 2 : 0x0000XX00 mullw r29,r29,r22 ; Applies coef2 on col2 channel 2 lwz r28,4(r2) ; Loads col4 -> r28 add r8 ,r8 ,r10 ; Adds col1 & col2 channels 1 & 3 and r10,r27,r12 ; Masks col3 channels 1 & 3 : 0x00XX00XX add r25,r25,r29 ; Adds col1 & col2 channel 2 mullw r10,r10,r23 ; Applies coef3 on col3 channels 1 & 3 -andi. r29,r27,0xFF00 ; Masks col3 channel 2 : 0x0000XX00 +rlwinm r29,r27,0,16,23 ; Masks col3 channel 2 : 0x0000XX00 +;andi. r29,r27,0xFF00 ; Masks col3 channel 2 : 0x0000XX00 mullw r29,r29,r23 ; Applies coef3 on col3 channel 2 lwz r2,0(r31) ; px add r7 ,r8 ,r10 ; Adds col3 to (col1 + col2) channels 1 & 3 @@ -275,7 +292,8 @@ and r10,r28,r12 ; Masks col4 channels 1 & 3 : 0x00XX00XX mullw r10,r10,r24 ; Applies coef4 on col4 channels 1 & 3 add r25,r25,r29 ; Adds col 3 to (col1 + col2) channel 2 lwz r8,0(r30) ; px2 -andi. r28,r28,0xFF00 ; Masks col4 channel 2 : 0x0000XX00 +rlwinm r28,r28,0,16,23 ; Masks col4 channel 2 : 0x0000XX00 +;andi. r28,r28,0xFF00 ; Masks col4 channel 2 : 0x0000XX00 add r7 ,r7 ,r10 ; Adds col4 to (col1 + col2 + col3) channels 1 & 3 lwz r10,4(r30) ; py2 mullw r28,r28,r24 ; Applies coef4 on col4 channel 2 @@ -283,14 +301,14 @@ srawi r7, r7, 8 ; (sum of channels 1 & 3) >> 8 lwz r29,4(r31) ; py add r25,r25,r28 ; Adds col 4 to (col1 + col2 + col3) channel 2 rlwimi r7, r25, 24, 16, 23 ; (((sum of channels 2) >> 8 ) & 0x0000FF00) | ((sum of channels 1 and 3) & 0xFFFF00FF) -stwu r7,4(r6) ; Stores the computed pixel +stw r7,0(r6) ; Stores the computed pixel bdnz L100 ; Iterate again if needed b L300 ;goto end ; If not, returns from the function ; if out of range L400: -stwu r18,4(r6) +stw r18,0(r6) lwz r8,0(r30) ; px2 lwz r10,4(r30) ; py2 lwz r2,0(r31) ; px |