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Remove alignment reqirements from NEON optimizations in libpng

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On Android memory is not guaranted to be aligned and applications often crash with BUSERROR
This commit is contained in:
Andrey Kamaev 2012-10-05 17:31:31 +04:00
parent f017ad5943
commit 2885eb86b8
1 changed files with 14 additions and 14 deletions
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28
3rdparty/libpng/arm/filter_neon.S vendored
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@ -41,12 +41,12 @@ func png_read_filter_row_sub4_neon, export=1
ldr r3, [r0, #4] @ rowbytes
vmov.i8 d3, #0
1:
vld4.32 {d4[],d5[],d6[],d7[]}, [r1,:128]
vld4.32 {d4[],d5[],d6[],d7[]}, [r1]
vadd.u8 d0, d3, d4
vadd.u8 d1, d0, d5
vadd.u8 d2, d1, d6
vadd.u8 d3, d2, d7
vst4.32 {d0[0],d1[0],d2[0],d3[0]},[r1,:128]!
vst4.32 {d0[0],d1[0],d2[0],d3[0]},[r1]!
subs r3, r3, #16
bgt 1b
@ -67,7 +67,7 @@ func png_read_filter_row_sub3_neon, export=1
vadd.u8 d1, d0, d5
vext.8 d7, d23, d23, #1
vld1.8 {q11}, [r0], r12
vst1.32 {d0[0]}, [r1,:32], r2
vst1.32 {d0[0]}, [r1], r2
vadd.u8 d2, d1, d6
vst1.32 {d1[0]}, [r1], r2
vadd.u8 d3, d2, d7
@ -82,10 +82,10 @@ endfunc
func png_read_filter_row_up_neon, export=1
ldr r3, [r0, #4] @ rowbytes
1:
vld1.8 {q0}, [r1,:128]
vld1.8 {q1}, [r2,:128]!
vld1.8 {q0}, [r1]
vld1.8 {q1}, [r2]!
vadd.u8 q0, q0, q1
vst1.8 {q0}, [r1,:128]!
vst1.8 {q0}, [r1]!
subs r3, r3, #16
bgt 1b
@ -96,8 +96,8 @@ func png_read_filter_row_avg4_neon, export=1
ldr r12, [r0, #4] @ rowbytes
vmov.i8 d3, #0
1:
vld4.32 {d4[],d5[],d6[],d7[]}, [r1,:128]
vld4.32 {d16[],d17[],d18[],d19[]},[r2,:128]!
vld4.32 {d4[],d5[],d6[],d7[]}, [r1]
vld4.32 {d16[],d17[],d18[],d19[]},[r2]!
vhadd.u8 d0, d3, d16
vadd.u8 d0, d0, d4
vhadd.u8 d1, d0, d17
@ -106,7 +106,7 @@ func png_read_filter_row_avg4_neon, export=1
vadd.u8 d2, d2, d6
vhadd.u8 d3, d2, d19
vadd.u8 d3, d3, d7
vst4.32 {d0[0],d1[0],d2[0],d3[0]},[r1,:128]!
vst4.32 {d0[0],d1[0],d2[0],d3[0]},[r1]!
subs r12, r12, #16
bgt 1b
@ -133,7 +133,7 @@ func png_read_filter_row_avg3_neon, export=1
vadd.u8 d1, d1, d5
vext.8 d7, d23, d23, #1
vld1.8 {q11}, [r0], lr
vst1.32 {d0[0]}, [r1,:32], r4
vst1.32 {d0[0]}, [r1], r4
vhadd.u8 d2, d1, d18
vst1.32 {d1[0]}, [r1], r4
vext.8 d19, d21, d21, #1
@ -169,8 +169,8 @@ func png_read_filter_row_paeth4_neon, export=1
vmov.i8 d3, #0
vmov.i8 d20, #0
1:
vld4.32 {d4[],d5[],d6[],d7[]}, [r1,:128]
vld4.32 {d16[],d17[],d18[],d19[]},[r2,:128]!
vld4.32 {d4[],d5[],d6[],d7[]}, [r1]
vld4.32 {d16[],d17[],d18[],d19[]},[r2]!
paeth d0, d3, d16, d20
vadd.u8 d0, d0, d4
paeth d1, d0, d17, d16
@ -180,7 +180,7 @@ func png_read_filter_row_paeth4_neon, export=1
paeth d3, d2, d19, d18
vmov d20, d19
vadd.u8 d3, d3, d7
vst4.32 {d0[0],d1[0],d2[0],d3[0]},[r1,:128]!
vst4.32 {d0[0],d1[0],d2[0],d3[0]},[r1]!
subs r12, r12, #16
bgt 1b
@ -203,7 +203,7 @@ func png_read_filter_row_paeth3_neon, export=1
vadd.u8 d0, d0, d22
vext.8 d17, d20, d21, #3
paeth d1, d0, d17, d20
vst1.32 {d0[0]}, [r1,:32], r4
vst1.32 {d0[0]}, [r1], r4
vext.8 d6, d22, d23, #6
vadd.u8 d1, d1, d5
vext.8 d18, d20, d21, #6