diff options
Diffstat (limited to 'vp8/encoder/arm/neon/subtract_neon.asm')
| -rw-r--r-- | vp8/encoder/arm/neon/subtract_neon.asm | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/vp8/encoder/arm/neon/subtract_neon.asm b/vp8/encoder/arm/neon/subtract_neon.asm new file mode 100644 index 000000000..8781ca0cc --- /dev/null +++ b/vp8/encoder/arm/neon/subtract_neon.asm @@ -0,0 +1,171 @@ +; +; Copyright (c) 2010 The VP8 project authors. All Rights Reserved. +; +; Use of this source code is governed by a BSD-style license and patent +; grant that can be found in the LICENSE file in the root of the source +; tree. All contributing project authors may be found in the AUTHORS +; file in the root of the source tree. +; + + + EXPORT |vp8_subtract_b_neon_func| + EXPORT |vp8_subtract_mby_neon| + EXPORT |vp8_subtract_mbuv_neon| + + ARM + REQUIRE8 + PRESERVE8 + + AREA ||.text||, CODE, READONLY, ALIGN=2 +;========================================= +;void vp8_subtract_b_neon_func(short *diff, unsigned char *src, unsigned char *pred, int stride, int pitch); +|vp8_subtract_b_neon_func| PROC + ldr r12, [sp] ;load pitch + + vld1.8 {d0}, [r1], r3 ;load src + vld1.8 {d1}, [r2], r12 ;load pred + vld1.8 {d2}, [r1], r3 + vld1.8 {d3}, [r2], r12 + vld1.8 {d4}, [r1], r3 + vld1.8 {d5}, [r2], r12 + vld1.8 {d6}, [r1], r3 + vld1.8 {d7}, [r2], r12 + + vsubl.u8 q10, d0, d1 + vsubl.u8 q11, d2, d3 + vsubl.u8 q12, d4, d5 + vsubl.u8 q13, d6, d7 + + mov r12, r12, lsl #1 + + vst1.16 {d20}, [r0], r12 ;store diff + vst1.16 {d22}, [r0], r12 + vst1.16 {d24}, [r0], r12 + vst1.16 {d26}, [r0], r12 + + bx lr + ENDP + +;========================================== +;void vp8_subtract_mby_neon(short *diff, unsigned char *src, unsigned char *pred, int stride) +|vp8_subtract_mby_neon| PROC + mov r12, #4 + +subtract_mby_loop + vld1.8 {q0}, [r1], r3 ;load src + vld1.8 {q1}, [r2]! ;load pred + vld1.8 {q2}, [r1], r3 + vld1.8 {q3}, [r2]! + vld1.8 {q4}, [r1], r3 + vld1.8 {q5}, [r2]! + vld1.8 {q6}, [r1], r3 + vld1.8 {q7}, [r2]! + + vsubl.u8 q8, d0, d2 + vsubl.u8 q9, d1, d3 + vsubl.u8 q10, d4, d6 + vsubl.u8 q11, d5, d7 + vsubl.u8 q12, d8, d10 + vsubl.u8 q13, d9, d11 + vsubl.u8 q14, d12, d14 + vsubl.u8 q15, d13, d15 + + vst1.16 {q8}, [r0]! ;store diff + vst1.16 {q9}, [r0]! + vst1.16 {q10}, [r0]! + vst1.16 {q11}, [r0]! + vst1.16 {q12}, [r0]! + vst1.16 {q13}, [r0]! + vst1.16 {q14}, [r0]! + vst1.16 {q15}, [r0]! + + subs r12, r12, #1 + bne subtract_mby_loop + + bx lr + ENDP + +;================================= +;void vp8_subtract_mbuv_neon(short *diff, unsigned char *usrc, unsigned char *vsrc, unsigned char *pred, int stride) +|vp8_subtract_mbuv_neon| PROC + ldr r12, [sp] + +;u + add r0, r0, #512 ; short *udiff = diff + 256; + add r3, r3, #256 ; unsigned char *upred = pred + 256; + + vld1.8 {d0}, [r1], r12 ;load src + vld1.8 {d1}, [r3]! ;load pred + vld1.8 {d2}, [r1], r12 + vld1.8 {d3}, [r3]! + vld1.8 {d4}, [r1], r12 + vld1.8 {d5}, [r3]! + vld1.8 {d6}, [r1], r12 + vld1.8 {d7}, [r3]! + vld1.8 {d8}, [r1], r12 + vld1.8 {d9}, [r3]! + vld1.8 {d10}, [r1], r12 + vld1.8 {d11}, [r3]! + vld1.8 {d12}, [r1], r12 + vld1.8 {d13}, [r3]! + vld1.8 {d14}, [r1], r12 + vld1.8 {d15}, [r3]! + + vsubl.u8 q8, d0, d1 + vsubl.u8 q9, d2, d3 + vsubl.u8 q10, d4, d5 + vsubl.u8 q11, d6, d7 + vsubl.u8 q12, d8, d9 + vsubl.u8 q13, d10, d11 + vsubl.u8 q14, d12, d13 + vsubl.u8 q15, d14, d15 + + vst1.16 {q8}, [r0]! ;store diff + vst1.16 {q9}, [r0]! + vst1.16 {q10}, [r0]! + vst1.16 {q11}, [r0]! + vst1.16 {q12}, [r0]! + vst1.16 {q13}, [r0]! + vst1.16 {q14}, [r0]! + vst1.16 {q15}, [r0]! + +;v + vld1.8 {d0}, [r2], r12 ;load src + vld1.8 {d1}, [r3]! ;load pred + vld1.8 {d2}, [r2], r12 + vld1.8 {d3}, [r3]! + vld1.8 {d4}, [r2], r12 + vld1.8 {d5}, [r3]! + vld1.8 {d6}, [r2], r12 + vld1.8 {d7}, [r3]! + vld1.8 {d8}, [r2], r12 + vld1.8 {d9}, [r3]! + vld1.8 {d10}, [r2], r12 + vld1.8 {d11}, [r3]! + vld1.8 {d12}, [r2], r12 + vld1.8 {d13}, [r3]! + vld1.8 {d14}, [r2], r12 + vld1.8 {d15}, [r3]! + + vsubl.u8 q8, d0, d1 + vsubl.u8 q9, d2, d3 + vsubl.u8 q10, d4, d5 + vsubl.u8 q11, d6, d7 + vsubl.u8 q12, d8, d9 + vsubl.u8 q13, d10, d11 + vsubl.u8 q14, d12, d13 + vsubl.u8 q15, d14, d15 + + vst1.16 {q8}, [r0]! ;store diff + vst1.16 {q9}, [r0]! + vst1.16 {q10}, [r0]! + vst1.16 {q11}, [r0]! + vst1.16 {q12}, [r0]! + vst1.16 {q13}, [r0]! + vst1.16 {q14}, [r0]! + vst1.16 {q15}, [r0]! + + bx lr + ENDP + + END |