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- /*
- * Copyright (c) 2009 Mans Rullgard <mans@mansr.com>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
- #include "libavutil/arm/asm.S"
-
- function ff_get_pixels_armv6, export=1
- pld [r1, r2]
- push {r4-r8, lr}
- mov lr, #8
- 1:
- ldrd_post r4, r5, r1, r2
- subs lr, lr, #1
- uxtb16 r6, r4
- uxtb16 r4, r4, ror #8
- uxtb16 r12, r5
- uxtb16 r8, r5, ror #8
- pld [r1, r2]
- pkhbt r5, r6, r4, lsl #16
- pkhtb r6, r4, r6, asr #16
- pkhbt r7, r12, r8, lsl #16
- pkhtb r12, r8, r12, asr #16
- stm r0!, {r5,r6,r7,r12}
- bgt 1b
-
- pop {r4-r8, pc}
- endfunc
-
- function ff_diff_pixels_armv6, export=1
- pld [r1, r3]
- pld [r2, r3]
- push {r4-r9, lr}
- mov lr, #8
- 1:
- ldrd_post r4, r5, r1, r3
- ldrd_post r6, r7, r2, r3
- uxtb16 r8, r4
- uxtb16 r4, r4, ror #8
- uxtb16 r9, r6
- uxtb16 r6, r6, ror #8
- pld [r1, r3]
- ssub16 r9, r8, r9
- ssub16 r6, r4, r6
- uxtb16 r8, r5
- uxtb16 r5, r5, ror #8
- pld [r2, r3]
- pkhbt r4, r9, r6, lsl #16
- pkhtb r6, r6, r9, asr #16
- uxtb16 r9, r7
- uxtb16 r7, r7, ror #8
- ssub16 r9, r8, r9
- ssub16 r5, r5, r7
- subs lr, lr, #1
- pkhbt r8, r9, r5, lsl #16
- pkhtb r9, r5, r9, asr #16
- stm r0!, {r4,r6,r8,r9}
- bgt 1b
-
- pop {r4-r9, pc}
- endfunc
-
- function ff_pix_abs16_armv6, export=1
- ldr r0, [sp]
- push {r4-r9, lr}
- mov r12, #0
- mov lr, #0
- ldm r1, {r4-r7}
- ldr r8, [r2]
- 1:
- ldr r9, [r2, #4]
- pld [r1, r3]
- usada8 r12, r4, r8, r12
- ldr r8, [r2, #8]
- pld [r2, r3]
- usada8 lr, r5, r9, lr
- ldr r9, [r2, #12]
- usada8 r12, r6, r8, r12
- subs r0, r0, #1
- usada8 lr, r7, r9, lr
- beq 2f
- add r1, r1, r3
- ldm r1, {r4-r7}
- add r2, r2, r3
- ldr r8, [r2]
- b 1b
- 2:
- add r0, r12, lr
- pop {r4-r9, pc}
- endfunc
-
- function ff_pix_abs16_x2_armv6, export=1
- ldr r12, [sp]
- push {r4-r11, lr}
- mov r0, #0
- mov lr, #1
- orr lr, lr, lr, lsl #8
- orr lr, lr, lr, lsl #16
- 1:
- ldr r8, [r2]
- ldr r9, [r2, #4]
- lsr r10, r8, #8
- ldr r4, [r1]
- lsr r6, r9, #8
- orr r10, r10, r9, lsl #24
- ldr r5, [r2, #8]
- eor r11, r8, r10
- uhadd8 r7, r8, r10
- orr r6, r6, r5, lsl #24
- and r11, r11, lr
- uadd8 r7, r7, r11
- ldr r8, [r1, #4]
- usada8 r0, r4, r7, r0
- eor r7, r9, r6
- lsr r10, r5, #8
- and r7, r7, lr
- uhadd8 r4, r9, r6
- ldr r6, [r2, #12]
- uadd8 r4, r4, r7
- pld [r1, r3]
- orr r10, r10, r6, lsl #24
- usada8 r0, r8, r4, r0
- ldr r4, [r1, #8]
- eor r11, r5, r10
- ldrb r7, [r2, #16]
- and r11, r11, lr
- uhadd8 r8, r5, r10
- ldr r5, [r1, #12]
- uadd8 r8, r8, r11
- pld [r2, r3]
- lsr r10, r6, #8
- usada8 r0, r4, r8, r0
- orr r10, r10, r7, lsl #24
- subs r12, r12, #1
- eor r11, r6, r10
- add r1, r1, r3
- uhadd8 r9, r6, r10
- and r11, r11, lr
- uadd8 r9, r9, r11
- add r2, r2, r3
- usada8 r0, r5, r9, r0
- bgt 1b
-
- pop {r4-r11, pc}
- endfunc
-
- .macro usad_y2 p0, p1, p2, p3, n0, n1, n2, n3
- ldr \n0, [r2]
- eor \n1, \p0, \n0
- uhadd8 \p0, \p0, \n0
- and \n1, \n1, lr
- ldr \n2, [r1]
- uadd8 \p0, \p0, \n1
- ldr \n1, [r2, #4]
- usada8 r0, \p0, \n2, r0
- pld [r1, r3]
- eor \n3, \p1, \n1
- uhadd8 \p1, \p1, \n1
- and \n3, \n3, lr
- ldr \p0, [r1, #4]
- uadd8 \p1, \p1, \n3
- ldr \n2, [r2, #8]
- usada8 r0, \p1, \p0, r0
- pld [r2, r3]
- eor \p0, \p2, \n2
- uhadd8 \p2, \p2, \n2
- and \p0, \p0, lr
- ldr \p1, [r1, #8]
- uadd8 \p2, \p2, \p0
- ldr \n3, [r2, #12]
- usada8 r0, \p2, \p1, r0
- eor \p1, \p3, \n3
- uhadd8 \p3, \p3, \n3
- and \p1, \p1, lr
- ldr \p0, [r1, #12]
- uadd8 \p3, \p3, \p1
- add r1, r1, r3
- usada8 r0, \p3, \p0, r0
- add r2, r2, r3
- .endm
-
- function ff_pix_abs16_y2_armv6, export=1
- pld [r1]
- pld [r2]
- ldr r12, [sp]
- push {r4-r11, lr}
- mov r0, #0
- mov lr, #1
- orr lr, lr, lr, lsl #8
- orr lr, lr, lr, lsl #16
- ldr r4, [r2]
- ldr r5, [r2, #4]
- ldr r6, [r2, #8]
- ldr r7, [r2, #12]
- add r2, r2, r3
- 1:
- usad_y2 r4, r5, r6, r7, r8, r9, r10, r11
- subs r12, r12, #2
- usad_y2 r8, r9, r10, r11, r4, r5, r6, r7
- bgt 1b
-
- pop {r4-r11, pc}
- endfunc
-
- function ff_pix_abs8_armv6, export=1
- pld [r2, r3]
- ldr r12, [sp]
- push {r4-r9, lr}
- mov r0, #0
- mov lr, #0
- ldrd_post r4, r5, r1, r3
- 1:
- subs r12, r12, #2
- ldr r7, [r2, #4]
- ldr_post r6, r2, r3
- ldrd_post r8, r9, r1, r3
- usada8 r0, r4, r6, r0
- pld [r2, r3]
- usada8 lr, r5, r7, lr
- ldr r7, [r2, #4]
- ldr_post r6, r2, r3
- beq 2f
- ldrd_post r4, r5, r1, r3
- usada8 r0, r8, r6, r0
- pld [r2, r3]
- usada8 lr, r9, r7, lr
- b 1b
- 2:
- usada8 r0, r8, r6, r0
- usada8 lr, r9, r7, lr
- add r0, r0, lr
- pop {r4-r9, pc}
- endfunc
-
- function ff_sse16_armv6, export=1
- ldr r12, [sp]
- push {r4-r9, lr}
- mov r0, #0
- 1:
- ldrd r4, r5, [r1]
- ldr r8, [r2]
- uxtb16 lr, r4
- uxtb16 r4, r4, ror #8
- uxtb16 r9, r8
- uxtb16 r8, r8, ror #8
- ldr r7, [r2, #4]
- usub16 lr, lr, r9
- usub16 r4, r4, r8
- smlad r0, lr, lr, r0
- uxtb16 r6, r5
- uxtb16 lr, r5, ror #8
- uxtb16 r8, r7
- uxtb16 r9, r7, ror #8
- smlad r0, r4, r4, r0
- ldrd r4, r5, [r1, #8]
- usub16 r6, r6, r8
- usub16 r8, lr, r9
- ldr r7, [r2, #8]
- smlad r0, r6, r6, r0
- uxtb16 lr, r4
- uxtb16 r4, r4, ror #8
- uxtb16 r9, r7
- uxtb16 r7, r7, ror #8
- smlad r0, r8, r8, r0
- ldr r8, [r2, #12]
- usub16 lr, lr, r9
- usub16 r4, r4, r7
- smlad r0, lr, lr, r0
- uxtb16 r6, r5
- uxtb16 r5, r5, ror #8
- uxtb16 r9, r8
- uxtb16 r8, r8, ror #8
- smlad r0, r4, r4, r0
- usub16 r6, r6, r9
- usub16 r5, r5, r8
- smlad r0, r6, r6, r0
- add r1, r1, r3
- add r2, r2, r3
- subs r12, r12, #1
- smlad r0, r5, r5, r0
- bgt 1b
-
- pop {r4-r9, pc}
- endfunc
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