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_dequant_idct_add_v6| 11 12 AREA |.text|, CODE, READONLY 13 ;void vp8_dequant_idct_v6(short *input, short *dq, 14 ; unsigned char *dest, int stride) 15 ; r0 = q 16 ; r1 = dq 17 ; r2 = dst 18 ; r3 = stride 19 20 |vp8_dequant_idct_add_v6| PROC 21 stmdb sp!, {r4-r11, lr} 22 23 ldr r4, [r0] ;input 24 ldr r5, [r1], #4 ;dq 25 26 sub sp, sp, #4 27 str r3, [sp] 28 29 mov r12, #4 30 31 vp8_dequant_add_loop 32 smulbb r6, r4, r5 33 smultt r7, r4, r5 34 35 ldr r4, [r0, #4] ;input 36 ldr r5, [r1], #4 ;dq 37 38 strh r6, [r0], #2 39 strh r7, [r0], #2 40 41 smulbb r6, r4, r5 42 smultt r7, r4, r5 43 44 subs r12, r12, #1 45 46 ldrne r4, [r0, #4] 47 ldrne r5, [r1], #4 48 49 strh r6, [r0], #2 50 strh r7, [r0], #2 51 52 bne vp8_dequant_add_loop 53 54 sub r0, r0, #32 55 mov r1, r0 56 57 ; short_idct4x4llm_v6_dual 58 ldr r3, cospi8sqrt2minus1 59 ldr r4, sinpi8sqrt2 60 ldr r6, [r0, #8] 61 mov r5, #2 62 vp8_dequant_idct_loop1_v6 63 ldr r12, [r0, #24] 64 ldr r14, [r0, #16] 65 smulwt r9, r3, r6 66 smulwb r7, r3, r6 67 smulwt r10, r4, r6 68 smulwb r8, r4, r6 69 pkhbt r7, r7, r9, lsl #16 70 smulwt r11, r3, r12 71 pkhbt r8, r8, r10, lsl #16 72 uadd16 r6, r6, r7 73 smulwt r7, r4, r12 74 smulwb r9, r3, r12 75 smulwb r10, r4, r12 76 subs r5, r5, #1 77 pkhbt r9, r9, r11, lsl #16 78 ldr r11, [r0], #4 79 pkhbt r10, r10, r7, lsl #16 80 uadd16 r7, r12, r9 81 usub16 r7, r8, r7 82 uadd16 r6, r6, r10 83 uadd16 r10, r11, r14 84 usub16 r8, r11, r14 85 uadd16 r9, r10, r6 86 usub16 r10, r10, r6 87 uadd16 r6, r8, r7 88 usub16 r7, r8, r7 89 str r6, [r1, #8] 90 ldrne r6, [r0, #8] 91 str r7, [r1, #16] 92 str r10, [r1, #24] 93 str r9, [r1], #4 94 bne vp8_dequant_idct_loop1_v6 95 96 mov r5, #2 97 sub r0, r1, #8 98 vp8_dequant_idct_loop2_v6 99 ldr r6, [r0], #4 100 ldr r7, [r0], #4 101 ldr r8, [r0], #4 102 ldr r9, [r0], #4 103 smulwt r1, r3, r6 104 smulwt r12, r4, r6 105 smulwt lr, r3, r8 106 smulwt r10, r4, r8 107 pkhbt r11, r8, r6, lsl #16 108 pkhbt r1, lr, r1, lsl #16 109 pkhbt r12, r10, r12, lsl #16 110 pkhtb r6, r6, r8, asr #16 111 uadd16 r6, r1, r6 112 pkhbt lr, r9, r7, lsl #16 113 uadd16 r10, r11, lr 114 usub16 lr, r11, lr 115 pkhtb r8, r7, r9, asr #16 116 subs r5, r5, #1 117 smulwt r1, r3, r8 118 smulwb r7, r3, r8 119 smulwt r11, r4, r8 120 smulwb r9, r4, r8 121 pkhbt r1, r7, r1, lsl #16 122 uadd16 r8, r1, r8 123 pkhbt r11, r9, r11, lsl #16 124 usub16 r1, r12, r8 125 uadd16 r8, r11, r6 126 ldr r9, c0x00040004 127 ldr r12, [sp] ; get stride from stack 128 uadd16 r6, r10, r8 129 usub16 r7, r10, r8 130 uadd16 r7, r7, r9 131 uadd16 r6, r6, r9 132 uadd16 r10, r14, r1 133 usub16 r1, r14, r1 134 uadd16 r10, r10, r9 135 uadd16 r1, r1, r9 136 ldr r11, [r2] ; load input from dst 137 mov r8, r7, asr #3 138 pkhtb r9, r8, r10, asr #19 139 mov r8, r1, asr #3 140 pkhtb r8, r8, r6, asr #19 141 uxtb16 lr, r11, ror #8 142 qadd16 r9, r9, lr 143 uxtb16 lr, r11 144 qadd16 r8, r8, lr 145 usat16 r9, #8, r9 146 usat16 r8, #8, r8 147 orr r9, r8, r9, lsl #8 148 ldr r11, [r2, r12] ; load input from dst 149 mov r7, r7, lsl #16 150 mov r1, r1, lsl #16 151 mov r10, r10, lsl #16 152 mov r6, r6, lsl #16 153 mov r7, r7, asr #3 154 pkhtb r7, r7, r10, asr #19 155 mov r1, r1, asr #3 156 pkhtb r1, r1, r6, asr #19 157 uxtb16 r8, r11, ror #8 158 qadd16 r7, r7, r8 159 uxtb16 r8, r11 160 qadd16 r1, r1, r8 161 usat16 r7, #8, r7 162 usat16 r1, #8, r1 163 orr r1, r1, r7, lsl #8 164 str r9, [r2], r12 ; store output to dst 165 str r1, [r2], r12 ; store output to dst 166 bne vp8_dequant_idct_loop2_v6 167 168 ; vpx_memset 169 sub r0, r0, #32 170 add sp, sp, #4 171 172 mov r12, #0 173 str r12, [r0] 174 str r12, [r0, #4] 175 str r12, [r0, #8] 176 str r12, [r0, #12] 177 str r12, [r0, #16] 178 str r12, [r0, #20] 179 str r12, [r0, #24] 180 str r12, [r0, #28] 181 182 ldmia sp!, {r4 - r11, pc} 183 ENDP ; |vp8_dequant_idct_add_v6| 184 185 ; Constant Pool 186 cospi8sqrt2minus1 DCD 0x00004E7B 187 sinpi8sqrt2 DCD 0x00008A8C 188 c0x00040004 DCD 0x00040004 189 190 END 191
