2010-05-18 17:58:33 +02:00
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;
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2010-09-09 14:16:39 +02:00
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; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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2010-05-18 17:58:33 +02:00
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;
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2010-06-18 18:39:21 +02:00
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; Use of this source code is governed by a BSD-style license
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2010-06-04 22:19:40 +02:00
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; that can be found in the LICENSE file in the root of the source
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; tree. An additional intellectual property rights grant can be found
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2010-06-18 18:39:21 +02:00
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; in the file PATENTS. All contributing project authors may
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2010-06-04 22:19:40 +02:00
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; be found in the AUTHORS file in the root of the source tree.
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2010-05-18 17:58:33 +02:00
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;
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EXPORT |vp8_subtract_b_neon_func|
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EXPORT |vp8_subtract_mby_neon|
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EXPORT |vp8_subtract_mbuv_neon|
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ARM
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REQUIRE8
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PRESERVE8
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AREA ||.text||, CODE, READONLY, ALIGN=2
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;=========================================
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;void vp8_subtract_b_neon_func(short *diff, unsigned char *src, unsigned char *pred, int stride, int pitch);
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|vp8_subtract_b_neon_func| PROC
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ldr r12, [sp] ;load pitch
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vld1.8 {d0}, [r1], r3 ;load src
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vld1.8 {d1}, [r2], r12 ;load pred
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vld1.8 {d2}, [r1], r3
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vld1.8 {d3}, [r2], r12
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vld1.8 {d4}, [r1], r3
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vld1.8 {d5}, [r2], r12
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vld1.8 {d6}, [r1], r3
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vld1.8 {d7}, [r2], r12
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vsubl.u8 q10, d0, d1
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vsubl.u8 q11, d2, d3
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vsubl.u8 q12, d4, d5
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vsubl.u8 q13, d6, d7
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mov r12, r12, lsl #1
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vst1.16 {d20}, [r0], r12 ;store diff
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vst1.16 {d22}, [r0], r12
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vst1.16 {d24}, [r0], r12
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vst1.16 {d26}, [r0], r12
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bx lr
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ENDP
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;==========================================
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;void vp8_subtract_mby_neon(short *diff, unsigned char *src, unsigned char *pred, int stride)
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|vp8_subtract_mby_neon| PROC
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mov r12, #4
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subtract_mby_loop
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vld1.8 {q0}, [r1], r3 ;load src
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vld1.8 {q1}, [r2]! ;load pred
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vld1.8 {q2}, [r1], r3
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vld1.8 {q3}, [r2]!
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vld1.8 {q4}, [r1], r3
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vld1.8 {q5}, [r2]!
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vld1.8 {q6}, [r1], r3
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vld1.8 {q7}, [r2]!
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vsubl.u8 q8, d0, d2
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vsubl.u8 q9, d1, d3
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vsubl.u8 q10, d4, d6
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vsubl.u8 q11, d5, d7
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vsubl.u8 q12, d8, d10
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vsubl.u8 q13, d9, d11
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vsubl.u8 q14, d12, d14
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vsubl.u8 q15, d13, d15
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vst1.16 {q8}, [r0]! ;store diff
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vst1.16 {q9}, [r0]!
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vst1.16 {q10}, [r0]!
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vst1.16 {q11}, [r0]!
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vst1.16 {q12}, [r0]!
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vst1.16 {q13}, [r0]!
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vst1.16 {q14}, [r0]!
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vst1.16 {q15}, [r0]!
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subs r12, r12, #1
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bne subtract_mby_loop
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bx lr
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ENDP
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;=================================
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;void vp8_subtract_mbuv_neon(short *diff, unsigned char *usrc, unsigned char *vsrc, unsigned char *pred, int stride)
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|vp8_subtract_mbuv_neon| PROC
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ldr r12, [sp]
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;u
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add r0, r0, #512 ; short *udiff = diff + 256;
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add r3, r3, #256 ; unsigned char *upred = pred + 256;
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vld1.8 {d0}, [r1], r12 ;load src
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vld1.8 {d1}, [r3]! ;load pred
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vld1.8 {d2}, [r1], r12
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vld1.8 {d3}, [r3]!
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vld1.8 {d4}, [r1], r12
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vld1.8 {d5}, [r3]!
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vld1.8 {d6}, [r1], r12
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vld1.8 {d7}, [r3]!
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vld1.8 {d8}, [r1], r12
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vld1.8 {d9}, [r3]!
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vld1.8 {d10}, [r1], r12
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vld1.8 {d11}, [r3]!
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vld1.8 {d12}, [r1], r12
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vld1.8 {d13}, [r3]!
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vld1.8 {d14}, [r1], r12
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vld1.8 {d15}, [r3]!
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vsubl.u8 q8, d0, d1
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vsubl.u8 q9, d2, d3
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vsubl.u8 q10, d4, d5
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vsubl.u8 q11, d6, d7
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vsubl.u8 q12, d8, d9
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vsubl.u8 q13, d10, d11
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vsubl.u8 q14, d12, d13
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vsubl.u8 q15, d14, d15
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vst1.16 {q8}, [r0]! ;store diff
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vst1.16 {q9}, [r0]!
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vst1.16 {q10}, [r0]!
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vst1.16 {q11}, [r0]!
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vst1.16 {q12}, [r0]!
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vst1.16 {q13}, [r0]!
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vst1.16 {q14}, [r0]!
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vst1.16 {q15}, [r0]!
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;v
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vld1.8 {d0}, [r2], r12 ;load src
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vld1.8 {d1}, [r3]! ;load pred
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vld1.8 {d2}, [r2], r12
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vld1.8 {d3}, [r3]!
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vld1.8 {d4}, [r2], r12
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vld1.8 {d5}, [r3]!
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vld1.8 {d6}, [r2], r12
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vld1.8 {d7}, [r3]!
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vld1.8 {d8}, [r2], r12
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vld1.8 {d9}, [r3]!
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vld1.8 {d10}, [r2], r12
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vld1.8 {d11}, [r3]!
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vld1.8 {d12}, [r2], r12
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vld1.8 {d13}, [r3]!
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vld1.8 {d14}, [r2], r12
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vld1.8 {d15}, [r3]!
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vsubl.u8 q8, d0, d1
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vsubl.u8 q9, d2, d3
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vsubl.u8 q10, d4, d5
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vsubl.u8 q11, d6, d7
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vsubl.u8 q12, d8, d9
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vsubl.u8 q13, d10, d11
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vsubl.u8 q14, d12, d13
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vsubl.u8 q15, d14, d15
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vst1.16 {q8}, [r0]! ;store diff
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vst1.16 {q9}, [r0]!
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vst1.16 {q10}, [r0]!
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vst1.16 {q11}, [r0]!
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vst1.16 {q12}, [r0]!
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vst1.16 {q13}, [r0]!
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vst1.16 {q14}, [r0]!
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vst1.16 {q15}, [r0]!
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bx lr
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ENDP
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END
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