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106 lines
3.8 KiB
106 lines
3.8 KiB
/* |
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* Copyright (c) 2010 Mans Rullgard |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "asm.S" |
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#include "asm-offsets.h" |
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function ff_dct_unquantize_h263_inter_neon, export=1 |
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add r0, r0, #0x2200 |
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add r12, r0, #BLOCK_LAST_INDEX-0x2200 |
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ldr r12, [r12, r2, lsl #2] |
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add r0, r0, #INTER_SCANTAB_RASTER_END-0x2200 |
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ldrb r12, [r0, r12] |
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sub r2, r3, #1 |
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lsl r0, r3, #1 |
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orr r2, r2, #1 |
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add r3, r12, #1 |
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endfunc |
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function ff_dct_unquantize_h263_neon, export=1 |
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vdup.16 q15, r0 @ qmul |
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vdup.16 q14, r2 @ qadd |
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vneg.s16 q13, q14 |
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cmp r3, #4 |
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mov r0, r1 |
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ble 2f |
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1: |
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vld1.16 {q0}, [r0,:128]! |
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vclt.s16 q3, q0, #0 |
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vld1.16 {q8}, [r0,:128]! |
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vceq.s16 q1, q0, #0 |
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vmul.s16 q2, q0, q15 |
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vclt.s16 q11, q8, #0 |
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vmul.s16 q10, q8, q15 |
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vbsl q3, q13, q14 |
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vbsl q11, q13, q14 |
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vadd.s16 q2, q2, q3 |
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vceq.s16 q9, q8, #0 |
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vadd.s16 q10, q10, q11 |
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vbif q0, q2, q1 |
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vbif q8, q10, q9 |
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subs r3, r3, #16 |
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vst1.16 {q0}, [r1,:128]! |
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vst1.16 {q8}, [r1,:128]! |
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bxle lr |
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cmp r3, #8 |
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bgt 1b |
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2: |
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vld1.16 {d0}, [r0,:64] |
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vclt.s16 d3, d0, #0 |
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vceq.s16 d1, d0, #0 |
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vmul.s16 d2, d0, d30 |
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vbsl d3, d26, d28 |
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vadd.s16 d2, d2, d3 |
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vbif d0, d2, d1 |
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vst1.16 {d0}, [r1,:64] |
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bx lr |
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endfunc |
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function ff_dct_unquantize_h263_intra_neon, export=1 |
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push {r4-r6,lr} |
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ldr r6, [r0, #AC_PRED] |
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add r5, r0, #0x2700 |
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cmp r6, #0 |
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movne r12, #63 |
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bne 1f |
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add lr, r0, #0x2200 |
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add r12, lr, #BLOCK_LAST_INDEX-0x2200 |
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add lr, lr, #INTER_SCANTAB_RASTER_END-0x2200 |
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ldr r12, [r12, r2, lsl #2] |
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ldrb r12, [lr, r12] |
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1: ldr r5, [r5, #H263_AIC-0x2700] |
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ldrsh r4, [r1] |
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cmp r5, #0 |
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mov r5, r1 |
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movne r2, #0 |
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bne 2f |
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cmp r2, #4 |
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addge r0, r0, #4 |
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sub r2, r3, #1 |
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ldr r6, [r0, #Y_DC_SCALE] |
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orr r2, r2, #1 |
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smulbb r4, r4, r6 |
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2: lsl r0, r3, #1 |
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add r3, r12, #1 |
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bl ff_dct_unquantize_h263_neon |
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vmov.16 d0[0], r4 |
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vst1.16 {d0[0]}, [r5] |
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pop {r4-r6,pc} |
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endfunc
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