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 11 EXPORT |vp8_dequant_dc_idct_add_v6| 12 13 AREA |.text|, CODE, READONLY 14 15 ;void vp8_dequant_dc_idct_v6(short *input, short *dq, unsigned char *pred, 16 ; unsigned char *dest, int pitch, int stride, int Dc) 17 ; r0 = input 18 ; r1 = dq 19 ; r2 = pred 20 ; r3 = dest 21 ; sp + 36 = pitch ; +4 = 40 22 ; sp + 40 = stride ; +4 = 44 23 ; sp + 44 = Dc ; +4 = 48 24 25 26 |vp8_dequant_dc_idct_add_v6| PROC 27 stmdb sp!, {r4-r11, lr} 28 29 ldr r6, [sp, #44] 30 31 ldr r4, [r0] ;input 32 ldr r5, [r1], #4 ;dq 33 34 sub sp, sp, #4 35 str r3, [sp] 36 37 smultt r7, r4, r5 38 39 ldr r4, [r0, #4] ;input 40 ldr r5, [r1], #4 ;dq 41 42 strh r6, [r0], #2 43 strh r7, [r0], #2 44 45 smulbb r6, r4, r5 46 smultt r7, r4, r5 47 48 ldr r4, [r0, #4] ;input 49 ldr r5, [r1], #4 ;dq 50 51 strh r6, [r0], #2 52 strh r7, [r0], #2 53 54 mov r12, #3 55 56 vp8_dequant_dc_add_loop 57 smulbb r6, r4, r5 58 smultt r7, r4, r5 59 60 ldr r4, [r0, #4] ;input 61 ldr r5, [r1], #4 ;dq 62 63 strh r6, [r0], #2 64 strh r7, [r0], #2 65 66 smulbb r6, r4, r5 67 smultt r7, r4, r5 68 69 subs r12, r12, #1 70 71 ldrne r4, [r0, #4] 72 ldrne r5, [r1], #4 73 74 strh r6, [r0], #2 75 strh r7, [r0], #2 76 77 bne vp8_dequant_dc_add_loop 78 79 sub r0, r0, #32 80 mov r1, r0 81 82 ; short_idct4x4llm_v6_dual 83 ldr r3, cospi8sqrt2minus1 84 ldr r4, sinpi8sqrt2 85 ldr r6, [r0, #8] 86 mov r5, #2 87 vp8_dequant_dc_idct_loop1_v6 88 ldr r12, [r0, #24] 89 ldr r14, [r0, #16] 90 smulwt r9, r3, r6 91 smulwb r7, r3, r6 92 smulwt r10, r4, r6 93 smulwb r8, r4, r6 94 pkhbt r7, r7, r9, lsl #16 95 smulwt r11, r3, r12 96 pkhbt r8, r8, r10, lsl #16 97 uadd16 r6, r6, r7 98 smulwt r7, r4, r12 99 smulwb r9, r3, r12 100 smulwb r10, r4, r12 101 subs r5, r5, #1 102 pkhbt r9, r9, r11, lsl #16 103 ldr r11, [r0], #4 104 pkhbt r10, r10, r7, lsl #16 105 uadd16 r7, r12, r9 106 usub16 r7, r8, r7 107 uadd16 r6, r6, r10 108 uadd16 r10, r11, r14 109 usub16 r8, r11, r14 110 uadd16 r9, r10, r6 111 usub16 r10, r10, r6 112 uadd16 r6, r8, r7 113 usub16 r7, r8, r7 114 str r6, [r1, #8] 115 ldrne r6, [r0, #8] 116 str r7, [r1, #16] 117 str r10, [r1, #24] 118 str r9, [r1], #4 119 bne vp8_dequant_dc_idct_loop1_v6 120 121 mov r5, #2 122 sub r0, r1, #8 123 vp8_dequant_dc_idct_loop2_v6 124 ldr r6, [r0], #4 125 ldr r7, [r0], #4 126 ldr r8, [r0], #4 127 ldr r9, [r0], #4 128 smulwt r1, r3, r6 129 smulwt r12, r4, r6 130 smulwt lr, r3, r8 131 smulwt r10, r4, r8 132 pkhbt r11, r8, r6, lsl #16 133 pkhbt r1, lr, r1, lsl #16 134 pkhbt r12, r10, r12, lsl #16 135 pkhtb r6, r6, r8, asr #16 136 uadd16 r6, r1, r6 137 pkhbt lr, r9, r7, lsl #16 138 uadd16 r10, r11, lr 139 usub16 lr, r11, lr 140 pkhtb r8, r7, r9, asr #16 141 subs r5, r5, #1 142 smulwt r1, r3, r8 143 smulwb r7, r3, r8 144 smulwt r11, r4, r8 145 smulwb r9, r4, r8 146 pkhbt r1, r7, r1, lsl #16 147 uadd16 r8, r1, r8 148 pkhbt r11, r9, r11, lsl #16 149 usub16 r1, r12, r8 150 uadd16 r8, r11, r6 151 ldr r9, c0x00040004 152 ldr r12, [sp, #40] 153 uadd16 r6, r10, r8 154 usub16 r7, r10, r8 155 uadd16 r7, r7, r9 156 uadd16 r6, r6, r9 157 uadd16 r10, r14, r1 158 usub16 r1, r14, r1 159 uadd16 r10, r10, r9 160 uadd16 r1, r1, r9 161 ldr r11, [r2], r12 162 mov r8, r7, asr #3 163 pkhtb r9, r8, r10, asr #19 164 mov r8, r1, asr #3 165 pkhtb r8, r8, r6, asr #19 166 uxtb16 lr, r11, ror #8 167 qadd16 r9, r9, lr 168 uxtb16 lr, r11 169 qadd16 r8, r8, lr 170 usat16 r9, #8, r9 171 usat16 r8, #8, r8 172 orr r9, r8, r9, lsl #8 173 ldr r11, [r2], r12 174 ldr lr, [sp] 175 ldr r12, [sp, #44] 176 mov r7, r7, lsl #16 177 mov r1, r1, lsl #16 178 mov r10, r10, lsl #16 179 mov r6, r6, lsl #16 180 mov r7, r7, asr #3 181 pkhtb r7, r7, r10, asr #19 182 mov r1, r1, asr #3 183 pkhtb r1, r1, r6, asr #19 184 uxtb16 r8, r11, ror #8 185 qadd16 r7, r7, r8 186 uxtb16 r8, r11 187 qadd16 r1, r1, r8 188 usat16 r7, #8, r7 189 usat16 r1, #8, r1 190 orr r1, r1, r7, lsl #8 191 str r9, [lr], r12 192 str r1, [lr], r12 193 str lr, [sp] 194 bne vp8_dequant_dc_idct_loop2_v6 195 196 ; vpx_memset 197 sub r0, r0, #32 198 add sp, sp, #4 199 200 mov r12, #0 201 str r12, [r0] 202 str r12, [r0, #4] 203 str r12, [r0, #8] 204 str r12, [r0, #12] 205 str r12, [r0, #16] 206 str r12, [r0, #20] 207 str r12, [r0, #24] 208 str r12, [r0, #28] 209 210 ldmia sp!, {r4 - r11, pc} 211 ENDP ; |vp8_dequant_dc_idct_add_v6| 212 213 ; Constant Pool 214 cospi8sqrt2minus1 DCD 0x00004E7B 215 sinpi8sqrt2 DCD 0x00008A8C 216 c0x00040004 DCD 0x00040004 217 218 END 219
