Commit 2a2d8c14 authored by hkuang's avatar hkuang Committed by Gerrit Code Review

Merge "Add vp9_tm_predictor_4x4 neon implementation"

parents a5cb1b1a f2ef3892
......@@ -16,6 +16,7 @@
EXPORT |vp9_h_predictor_8x8_neon|
EXPORT |vp9_h_predictor_16x16_neon|
EXPORT |vp9_h_predictor_32x32_neon|
EXPORT |vp9_tm_predictor_4x4_neon|
ARM
REQUIRE8
PRESERVE8
......@@ -283,4 +284,52 @@ loop_h
bx lr
ENDP ; |vp9_h_predictor_32x32_neon|
;void vp9_tm_predictor_4x4_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_4x4_neon| PROC
; Load ytop_left = above[-1];
sub r12, r2, #1
ldrb r12, [r12]
vdup.u8 d0, r12
; Load above 4 pixels
vld1.32 {d2[0]}, [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
vst1.32 {d0[0]}, [r0], r1
vst1.32 {d1[0]}, [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
vst1.32 {d0[0]}, [r0], r1
vst1.32 {d1[0]}, [r0], r1
bx lr
ENDP ; |vp9_tm_predictor_4x4_neon|
END
......@@ -57,7 +57,7 @@ prototype void vp9_v_predictor_4x4 "uint8_t *dst, ptrdiff_t y_stride, const uint
specialize vp9_v_predictor_4x4 $sse_x86inc neon
prototype void vp9_tm_predictor_4x4 "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left"
specialize vp9_tm_predictor_4x4 $sse_x86inc dspr2
specialize vp9_tm_predictor_4x4 $sse_x86inc neon dspr2
prototype void vp9_dc_predictor_4x4 "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left"
specialize vp9_dc_predictor_4x4 $sse_x86inc dspr2
......
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