1 ; 2 ; Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3 ; 4 ; Use of this source code is governed by a BSD-style license and patent 5 ; grant that can be found in the LICENSE file in the root of the source 6 ; tree. All contributing project authors may be found in the AUTHORS 7 ; file in the root of the source tree. 8 ; 9 10 EXPORT |vp8_dc_only_idct_add_v6| 11 12 AREA |.text|, CODE, READONLY 13 14 ;void vp8_dc_only_idct_add_v6(short input_dc, unsigned char *pred_ptr, 15 ; unsigned char *dst_ptr, int pitch, int stride) 16 ; r0 input_dc 17 ; r1 pred_ptr 18 ; r2 dest_ptr 19 ; r3 pitch 20 ; sp stride 21 22 |vp8_dc_only_idct_add_v6| PROC 23 stmdb sp!, {r4 - r7, lr} 24 25 add r0, r0, #4 ; input_dc += 4 26 ldr r12, c0x0000FFFF 27 ldr r4, [r1], r3 28 ldr r6, [r1], r3 29 and r0, r12, r0, asr #3 ; input_dc >> 3 + mask 30 ldr lr, [sp, #20] 31 orr r0, r0, r0, lsl #16 ; a1 | a1 32 33 uxtab16 r5, r0, r4 ; a1+2 | a1+0 34 uxtab16 r4, r0, r4, ror #8 ; a1+3 | a1+1 35 uxtab16 r7, r0, r6 36 uxtab16 r6, r0, r6, ror #8 37 usat16 r5, #8, r5 38 usat16 r4, #8, r4 39 usat16 r7, #8, r7 40 usat16 r6, #8, r6 41 orr r5, r5, r4, lsl #8 42 orr r7, r7, r6, lsl #8 43 ldr r4, [r1], r3 44 ldr r6, [r1] 45 str r5, [r2], lr 46 str r7, [r2], lr 47 48 uxtab16 r5, r0, r4 49 uxtab16 r4, r0, r4, ror #8 50 uxtab16 r7, r0, r6 51 uxtab16 r6, r0, r6, ror #8 52 usat16 r5, #8, r5 53 usat16 r4, #8, r4 54 usat16 r7, #8, r7 55 usat16 r6, #8, r6 56 orr r5, r5, r4, lsl #8 57 orr r7, r7, r6, lsl #8 58 str r5, [r2], lr 59 str r7, [r2] 60 61 ldmia sp!, {r4 - r7, pc} 62 63 ENDP ; |vp8_dc_only_idct_add_v6| 64 65 ; Constant Pool 66 c0x0000FFFF DCD 0x0000FFFF 67 END 68
