Commit 58eb0e63 authored by hkuang's avatar hkuang Committed by Gerrit Code Review

Merge "Add tm_predictor_8x8 neon implementation."

parents 3671e629 97826df9
......@@ -17,6 +17,7 @@
EXPORT |vp9_h_predictor_16x16_neon|
EXPORT |vp9_h_predictor_32x32_neon|
EXPORT |vp9_tm_predictor_4x4_neon|
EXPORT |vp9_tm_predictor_8x8_neon|
ARM
REQUIRE8
PRESERVE8
......@@ -328,8 +329,78 @@ loop_h
vqshrun.s16 d1, q2, #0
vst1.32 {d0[0]}, [r0], r1
vst1.32 {d1[0]}, [r0], r1
bx lr
ENDP ; |vp9_tm_predictor_4x4_neon|
;void vp9_tm_predictor_8x8_neon (uint8_t *dst, ptrdiff_t y_stride,
; const uint8_t *above,
; const uint8_t *left)
; r0 uint8_t *dst
; r1 ptrdiff_t y_stride
; r2 const uint8_t *above
; r3 const uint8_t *left
|vp9_tm_predictor_8x8_neon| PROC
; Load ytop_left = above[-1];
sub r12, r2, #1
ldrb r12, [r12]
vdup.u8 d0, r12
; Load above 8 pixels
vld1.64 {d2}, [r2]
; Compute above - ytop_left
vsubl.u8 q3, d2, d0
; Load left row by row and compute left + (above - ytop_left)
; 1st row and 2nd row
ldrb r12, [r3], #1
ldrb r2, [r3], #1
vdup.u16 q1, r12
vdup.u16 q2, r2
vadd.s16 q1, q1, q3
vadd.s16 q2, q2, q3
vqshrun.s16 d0, q1, #0
vqshrun.s16 d1, q2, #0
vst1.64 {d0}, [r0], r1
vst1.64 {d1}, [r0], r1
; 3rd row and 4th row
ldrb r12, [r3], #1
ldrb r2, [r3], #1
vdup.u16 q1, r12
vdup.u16 q2, r2
vadd.s16 q1, q1, q3
vadd.s16 q2, q2, q3
vqshrun.s16 d0, q1, #0
vqshrun.s16 d1, q2, #0
vst1.64 {d0}, [r0], r1
vst1.64 {d1}, [r0], r1
; 5th row and 6th row
ldrb r12, [r3], #1
ldrb r2, [r3], #1
vdup.u16 q1, r12
vdup.u16 q2, r2
vadd.s16 q1, q1, q3
vadd.s16 q2, q2, q3
vqshrun.s16 d0, q1, #0
vqshrun.s16 d1, q2, #0
vst1.64 {d0}, [r0], r1
vst1.64 {d1}, [r0], r1
; 7rd row and 8th row
ldrb r12, [r3], #1
ldrb r2, [r3], #1
vdup.u16 q1, r12
vdup.u16 q2, r2
vadd.s16 q1, q1, q3
vadd.s16 q2, q2, q3
vqshrun.s16 d0, q1, #0
vqshrun.s16 d1, q2, #0
vst1.64 {d0}, [r0], r1
vst1.64 {d1}, [r0], r1
bx lr
ENDP ; |vp9_tm_predictor_8x8_neon|
END
......@@ -96,7 +96,7 @@ prototype void vp9_v_predictor_8x8 "uint8_t *dst, ptrdiff_t y_stride, const uint
specialize vp9_v_predictor_8x8 $sse_x86inc neon
prototype void vp9_tm_predictor_8x8 "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left"
specialize vp9_tm_predictor_8x8 $sse2_x86inc dspr2
specialize vp9_tm_predictor_8x8 $sse2_x86inc neon dspr2
prototype void vp9_dc_predictor_8x8 "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left"
specialize vp9_dc_predictor_8x8 $sse_x86inc dspr2
......
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