| /* |
| * Copyright 2012 The LibYuv Project Authors. All rights reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include "libyuv/basic_types.h" |
| #include "libyuv/row.h" |
| |
| #ifdef __cplusplus |
| namespace libyuv { |
| extern "C" { |
| #endif |
| |
| // This module is for GCC MIPS DSPR2 |
| #if !defined(LIBYUV_DISABLE_MIPS) && \ |
| defined(__mips_dsp) && (__mips_dsp_rev >= 2) && \ |
| (_MIPS_SIM == _MIPS_SIM_ABI32) |
| |
| void ScaleRowDown2_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| uint8* dst, int dst_width) { |
| __asm__ __volatile__( |
| ".set push \n" |
| ".set noreorder \n" |
| |
| "srl $t9, %[dst_width], 4 \n" // iterations -> by 16 |
| "beqz $t9, 2f \n" |
| " nop \n" |
| |
| ".p2align 2 \n" |
| "1: \n" |
| "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| |
| "lw $t1, 4(%[src_ptr]) \n" // |7|6|5|4| |
| "lw $t2, 8(%[src_ptr]) \n" // |11|10|9|8| |
| "lw $t3, 12(%[src_ptr]) \n" // |15|14|13|12| |
| "lw $t4, 16(%[src_ptr]) \n" // |19|18|17|16| |
| "lw $t5, 20(%[src_ptr]) \n" // |23|22|21|20| |
| "lw $t6, 24(%[src_ptr]) \n" // |27|26|25|24| |
| "lw $t7, 28(%[src_ptr]) \n" // |31|30|29|28| |
| // TODO(fbarchard): Use odd pixels instead of even. |
| "precr.qb.ph $t8, $t1, $t0 \n" // |6|4|2|0| |
| "precr.qb.ph $t0, $t3, $t2 \n" // |14|12|10|8| |
| "precr.qb.ph $t1, $t5, $t4 \n" // |22|20|18|16| |
| "precr.qb.ph $t2, $t7, $t6 \n" // |30|28|26|24| |
| "addiu %[src_ptr], %[src_ptr], 32 \n" |
| "addiu $t9, $t9, -1 \n" |
| "sw $t8, 0(%[dst]) \n" |
| "sw $t0, 4(%[dst]) \n" |
| "sw $t1, 8(%[dst]) \n" |
| "sw $t2, 12(%[dst]) \n" |
| "bgtz $t9, 1b \n" |
| " addiu %[dst], %[dst], 16 \n" |
| |
| "2: \n" |
| "andi $t9, %[dst_width], 0xf \n" // residue |
| "beqz $t9, 3f \n" |
| " nop \n" |
| |
| "21: \n" |
| "lbu $t0, 0(%[src_ptr]) \n" |
| "addiu %[src_ptr], %[src_ptr], 2 \n" |
| "addiu $t9, $t9, -1 \n" |
| "sb $t0, 0(%[dst]) \n" |
| "bgtz $t9, 21b \n" |
| " addiu %[dst], %[dst], 1 \n" |
| |
| "3: \n" |
| ".set pop \n" |
| : [src_ptr] "+r" (src_ptr), |
| [dst] "+r" (dst) |
| : [dst_width] "r" (dst_width) |
| : "t0", "t1", "t2", "t3", "t4", "t5", |
| "t6", "t7", "t8", "t9" |
| ); |
| } |
| |
| void ScaleRowDown2Box_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| uint8* dst, int dst_width) { |
| const uint8* t = src_ptr + src_stride; |
| |
| __asm__ __volatile__ ( |
| ".set push \n" |
| ".set noreorder \n" |
| |
| "srl $t9, %[dst_width], 3 \n" // iterations -> step 8 |
| "bltz $t9, 2f \n" |
| " nop \n" |
| |
| ".p2align 2 \n" |
| "1: \n" |
| "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| |
| "lw $t1, 4(%[src_ptr]) \n" // |7|6|5|4| |
| "lw $t2, 8(%[src_ptr]) \n" // |11|10|9|8| |
| "lw $t3, 12(%[src_ptr]) \n" // |15|14|13|12| |
| "lw $t4, 0(%[t]) \n" // |19|18|17|16| |
| "lw $t5, 4(%[t]) \n" // |23|22|21|20| |
| "lw $t6, 8(%[t]) \n" // |27|26|25|24| |
| "lw $t7, 12(%[t]) \n" // |31|30|29|28| |
| "addiu $t9, $t9, -1 \n" |
| "srl $t8, $t0, 16 \n" // |X|X|3|2| |
| "ins $t0, $t4, 16, 16 \n" // |17|16|1|0| |
| "ins $t4, $t8, 0, 16 \n" // |19|18|3|2| |
| "raddu.w.qb $t0, $t0 \n" // |17+16+1+0| |
| "raddu.w.qb $t4, $t4 \n" // |19+18+3+2| |
| "shra_r.w $t0, $t0, 2 \n" // |t0+2|>>2 |
| "shra_r.w $t4, $t4, 2 \n" // |t4+2|>>2 |
| "srl $t8, $t1, 16 \n" // |X|X|7|6| |
| "ins $t1, $t5, 16, 16 \n" // |21|20|5|4| |
| "ins $t5, $t8, 0, 16 \n" // |22|23|7|6| |
| "raddu.w.qb $t1, $t1 \n" // |21+20+5+4| |
| "raddu.w.qb $t5, $t5 \n" // |23+22+7+6| |
| "shra_r.w $t1, $t1, 2 \n" // |t1+2|>>2 |
| "shra_r.w $t5, $t5, 2 \n" // |t5+2|>>2 |
| "srl $t8, $t2, 16 \n" // |X|X|11|10| |
| "ins $t2, $t6, 16, 16 \n" // |25|24|9|8| |
| "ins $t6, $t8, 0, 16 \n" // |27|26|11|10| |
| "raddu.w.qb $t2, $t2 \n" // |25+24+9+8| |
| "raddu.w.qb $t6, $t6 \n" // |27+26+11+10| |
| "shra_r.w $t2, $t2, 2 \n" // |t2+2|>>2 |
| "shra_r.w $t6, $t6, 2 \n" // |t5+2|>>2 |
| "srl $t8, $t3, 16 \n" // |X|X|15|14| |
| "ins $t3, $t7, 16, 16 \n" // |29|28|13|12| |
| "ins $t7, $t8, 0, 16 \n" // |31|30|15|14| |
| "raddu.w.qb $t3, $t3 \n" // |29+28+13+12| |
| "raddu.w.qb $t7, $t7 \n" // |31+30+15+14| |
| "shra_r.w $t3, $t3, 2 \n" // |t3+2|>>2 |
| "shra_r.w $t7, $t7, 2 \n" // |t7+2|>>2 |
| "addiu %[src_ptr], %[src_ptr], 16 \n" |
| "addiu %[t], %[t], 16 \n" |
| "sb $t0, 0(%[dst]) \n" |
| "sb $t4, 1(%[dst]) \n" |
| "sb $t1, 2(%[dst]) \n" |
| "sb $t5, 3(%[dst]) \n" |
| "sb $t2, 4(%[dst]) \n" |
| "sb $t6, 5(%[dst]) \n" |
| "sb $t3, 6(%[dst]) \n" |
| "sb $t7, 7(%[dst]) \n" |
| "bgtz $t9, 1b \n" |
| " addiu %[dst], %[dst], 8 \n" |
| |
| "2: \n" |
| "andi $t9, %[dst_width], 0x7 \n" // x = residue |
| "beqz $t9, 3f \n" |
| " nop \n" |
| |
| "21: \n" |
| "lwr $t1, 0(%[src_ptr]) \n" |
| "lwl $t1, 3(%[src_ptr]) \n" |
| "lwr $t2, 0(%[t]) \n" |
| "lwl $t2, 3(%[t]) \n" |
| "srl $t8, $t1, 16 \n" |
| "ins $t1, $t2, 16, 16 \n" |
| "ins $t2, $t8, 0, 16 \n" |
| "raddu.w.qb $t1, $t1 \n" |
| "raddu.w.qb $t2, $t2 \n" |
| "shra_r.w $t1, $t1, 2 \n" |
| "shra_r.w $t2, $t2, 2 \n" |
| "sb $t1, 0(%[dst]) \n" |
| "sb $t2, 1(%[dst]) \n" |
| "addiu %[src_ptr], %[src_ptr], 4 \n" |
| "addiu $t9, $t9, -2 \n" |
| "addiu %[t], %[t], 4 \n" |
| "bgtz $t9, 21b \n" |
| " addiu %[dst], %[dst], 2 \n" |
| |
| "3: \n" |
| ".set pop \n" |
| |
| : [src_ptr] "+r" (src_ptr), |
| [dst] "+r" (dst), [t] "+r" (t) |
| : [dst_width] "r" (dst_width) |
| : "t0", "t1", "t2", "t3", "t4", "t5", |
| "t6", "t7", "t8", "t9" |
| ); |
| } |
| |
| void ScaleRowDown4_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| uint8* dst, int dst_width) { |
| __asm__ __volatile__ ( |
| ".set push \n" |
| ".set noreorder \n" |
| |
| "srl $t9, %[dst_width], 3 \n" |
| "beqz $t9, 2f \n" |
| " nop \n" |
| |
| ".p2align 2 \n" |
| "1: \n" |
| "lw $t1, 0(%[src_ptr]) \n" // |3|2|1|0| |
| "lw $t2, 4(%[src_ptr]) \n" // |7|6|5|4| |
| "lw $t3, 8(%[src_ptr]) \n" // |11|10|9|8| |
| "lw $t4, 12(%[src_ptr]) \n" // |15|14|13|12| |
| "lw $t5, 16(%[src_ptr]) \n" // |19|18|17|16| |
| "lw $t6, 20(%[src_ptr]) \n" // |23|22|21|20| |
| "lw $t7, 24(%[src_ptr]) \n" // |27|26|25|24| |
| "lw $t8, 28(%[src_ptr]) \n" // |31|30|29|28| |
| "precr.qb.ph $t1, $t2, $t1 \n" // |6|4|2|0| |
| "precr.qb.ph $t2, $t4, $t3 \n" // |14|12|10|8| |
| "precr.qb.ph $t5, $t6, $t5 \n" // |22|20|18|16| |
| "precr.qb.ph $t6, $t8, $t7 \n" // |30|28|26|24| |
| "precr.qb.ph $t1, $t2, $t1 \n" // |12|8|4|0| |
| "precr.qb.ph $t5, $t6, $t5 \n" // |28|24|20|16| |
| "addiu %[src_ptr], %[src_ptr], 32 \n" |
| "addiu $t9, $t9, -1 \n" |
| "sw $t1, 0(%[dst]) \n" |
| "sw $t5, 4(%[dst]) \n" |
| "bgtz $t9, 1b \n" |
| " addiu %[dst], %[dst], 8 \n" |
| |
| "2: \n" |
| "andi $t9, %[dst_width], 7 \n" // residue |
| "beqz $t9, 3f \n" |
| " nop \n" |
| |
| "21: \n" |
| "lbu $t1, 0(%[src_ptr]) \n" |
| "addiu %[src_ptr], %[src_ptr], 4 \n" |
| "addiu $t9, $t9, -1 \n" |
| "sb $t1, 0(%[dst]) \n" |
| "bgtz $t9, 21b \n" |
| " addiu %[dst], %[dst], 1 \n" |
| |
| "3: \n" |
| ".set pop \n" |
| : [src_ptr] "+r" (src_ptr), |
| [dst] "+r" (dst) |
| : [dst_width] "r" (dst_width) |
| : "t1", "t2", "t3", "t4", "t5", |
| "t6", "t7", "t8", "t9" |
| ); |
| } |
| |
| void ScaleRowDown4Box_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| uint8* dst, int dst_width) { |
| intptr_t stride = src_stride; |
| const uint8* s1 = src_ptr + stride; |
| const uint8* s2 = s1 + stride; |
| const uint8* s3 = s2 + stride; |
| |
| __asm__ __volatile__ ( |
| ".set push \n" |
| ".set noreorder \n" |
| |
| "srl $t9, %[dst_width], 1 \n" |
| "andi $t8, %[dst_width], 1 \n" |
| |
| ".p2align 2 \n" |
| "1: \n" |
| "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| |
| "lw $t1, 0(%[s1]) \n" // |7|6|5|4| |
| "lw $t2, 0(%[s2]) \n" // |11|10|9|8| |
| "lw $t3, 0(%[s3]) \n" // |15|14|13|12| |
| "lw $t4, 4(%[src_ptr]) \n" // |19|18|17|16| |
| "lw $t5, 4(%[s1]) \n" // |23|22|21|20| |
| "lw $t6, 4(%[s2]) \n" // |27|26|25|24| |
| "lw $t7, 4(%[s3]) \n" // |31|30|29|28| |
| "raddu.w.qb $t0, $t0 \n" // |3 + 2 + 1 + 0| |
| "raddu.w.qb $t1, $t1 \n" // |7 + 6 + 5 + 4| |
| "raddu.w.qb $t2, $t2 \n" // |11 + 10 + 9 + 8| |
| "raddu.w.qb $t3, $t3 \n" // |15 + 14 + 13 + 12| |
| "raddu.w.qb $t4, $t4 \n" // |19 + 18 + 17 + 16| |
| "raddu.w.qb $t5, $t5 \n" // |23 + 22 + 21 + 20| |
| "raddu.w.qb $t6, $t6 \n" // |27 + 26 + 25 + 24| |
| "raddu.w.qb $t7, $t7 \n" // |31 + 30 + 29 + 28| |
| "add $t0, $t0, $t1 \n" |
| "add $t1, $t2, $t3 \n" |
| "add $t0, $t0, $t1 \n" |
| "add $t4, $t4, $t5 \n" |
| "add $t6, $t6, $t7 \n" |
| "add $t4, $t4, $t6 \n" |
| "shra_r.w $t0, $t0, 4 \n" |
| "shra_r.w $t4, $t4, 4 \n" |
| "sb $t0, 0(%[dst]) \n" |
| "sb $t4, 1(%[dst]) \n" |
| "addiu %[src_ptr], %[src_ptr], 8 \n" |
| "addiu %[s1], %[s1], 8 \n" |
| "addiu %[s2], %[s2], 8 \n" |
| "addiu %[s3], %[s3], 8 \n" |
| "addiu $t9, $t9, -1 \n" |
| "bgtz $t9, 1b \n" |
| " addiu %[dst], %[dst], 2 \n" |
| "beqz $t8, 2f \n" |
| " nop \n" |
| |
| "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| |
| "lw $t1, 0(%[s1]) \n" // |7|6|5|4| |
| "lw $t2, 0(%[s2]) \n" // |11|10|9|8| |
| "lw $t3, 0(%[s3]) \n" // |15|14|13|12| |
| "raddu.w.qb $t0, $t0 \n" // |3 + 2 + 1 + 0| |
| "raddu.w.qb $t1, $t1 \n" // |7 + 6 + 5 + 4| |
| "raddu.w.qb $t2, $t2 \n" // |11 + 10 + 9 + 8| |
| "raddu.w.qb $t3, $t3 \n" // |15 + 14 + 13 + 12| |
| "add $t0, $t0, $t1 \n" |
| "add $t1, $t2, $t3 \n" |
| "add $t0, $t0, $t1 \n" |
| "shra_r.w $t0, $t0, 4 \n" |
| "sb $t0, 0(%[dst]) \n" |
| |
| "2: \n" |
| ".set pop \n" |
| |
| : [src_ptr] "+r" (src_ptr), |
| [dst] "+r" (dst), |
| [s1] "+r" (s1), |
| [s2] "+r" (s2), |
| [s3] "+r" (s3) |
| : [dst_width] "r" (dst_width) |
| : "t0", "t1", "t2", "t3", "t4", "t5", |
| "t6","t7", "t8", "t9" |
| ); |
| } |
| |
| void ScaleRowDown34_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| uint8* dst, int dst_width) { |
| __asm__ __volatile__ ( |
| ".set push \n" |
| ".set noreorder \n" |
| ".p2align 2 \n" |
| "1: \n" |
| "lw $t1, 0(%[src_ptr]) \n" // |3|2|1|0| |
| "lw $t2, 4(%[src_ptr]) \n" // |7|6|5|4| |
| "lw $t3, 8(%[src_ptr]) \n" // |11|10|9|8| |
| "lw $t4, 12(%[src_ptr]) \n" // |15|14|13|12| |
| "lw $t5, 16(%[src_ptr]) \n" // |19|18|17|16| |
| "lw $t6, 20(%[src_ptr]) \n" // |23|22|21|20| |
| "lw $t7, 24(%[src_ptr]) \n" // |27|26|25|24| |
| "lw $t8, 28(%[src_ptr]) \n" // |31|30|29|28| |
| "precrq.qb.ph $t0, $t2, $t4 \n" // |7|5|15|13| |
| "precrq.qb.ph $t9, $t6, $t8 \n" // |23|21|31|30| |
| "addiu %[dst_width], %[dst_width], -24 \n" |
| "ins $t1, $t1, 8, 16 \n" // |3|1|0|X| |
| "ins $t4, $t0, 8, 16 \n" // |X|15|13|12| |
| "ins $t5, $t5, 8, 16 \n" // |19|17|16|X| |
| "ins $t8, $t9, 8, 16 \n" // |X|31|29|28| |
| "addiu %[src_ptr], %[src_ptr], 32 \n" |
| "packrl.ph $t0, $t3, $t0 \n" // |9|8|7|5| |
| "packrl.ph $t9, $t7, $t9 \n" // |25|24|23|21| |
| "prepend $t1, $t2, 8 \n" // |4|3|1|0| |
| "prepend $t3, $t4, 24 \n" // |15|13|12|11| |
| "prepend $t5, $t6, 8 \n" // |20|19|17|16| |
| "prepend $t7, $t8, 24 \n" // |31|29|28|27| |
| "sw $t1, 0(%[dst]) \n" |
| "sw $t0, 4(%[dst]) \n" |
| "sw $t3, 8(%[dst]) \n" |
| "sw $t5, 12(%[dst]) \n" |
| "sw $t9, 16(%[dst]) \n" |
| "sw $t7, 20(%[dst]) \n" |
| "bnez %[dst_width], 1b \n" |
| " addiu %[dst], %[dst], 24 \n" |
| ".set pop \n" |
| : [src_ptr] "+r" (src_ptr), |
| [dst] "+r" (dst), |
| [dst_width] "+r" (dst_width) |
| : |
| : "t0", "t1", "t2", "t3", "t4", "t5", |
| "t6","t7", "t8", "t9" |
| ); |
| } |
| |
| void ScaleRowDown34_0_Box_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| uint8* d, int dst_width) { |
| __asm__ __volatile__ ( |
| ".set push \n" |
| ".set noreorder \n" |
| "repl.ph $t3, 3 \n" // 0x00030003 |
| |
| ".p2align 2 \n" |
| "1: \n" |
| "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| |
| "lwx $t1, %[src_stride](%[src_ptr]) \n" // |T3|T2|T1|T0| |
| "rotr $t2, $t0, 8 \n" // |S0|S3|S2|S1| |
| "rotr $t6, $t1, 8 \n" // |T0|T3|T2|T1| |
| "muleu_s.ph.qbl $t4, $t2, $t3 \n" // |S0*3|S3*3| |
| "muleu_s.ph.qbl $t5, $t6, $t3 \n" // |T0*3|T3*3| |
| "andi $t0, $t2, 0xFFFF \n" // |0|0|S2|S1| |
| "andi $t1, $t6, 0xFFFF \n" // |0|0|T2|T1| |
| "raddu.w.qb $t0, $t0 \n" |
| "raddu.w.qb $t1, $t1 \n" |
| "shra_r.w $t0, $t0, 1 \n" |
| "shra_r.w $t1, $t1, 1 \n" |
| "preceu.ph.qbr $t2, $t2 \n" // |0|S2|0|S1| |
| "preceu.ph.qbr $t6, $t6 \n" // |0|T2|0|T1| |
| "rotr $t2, $t2, 16 \n" // |0|S1|0|S2| |
| "rotr $t6, $t6, 16 \n" // |0|T1|0|T2| |
| "addu.ph $t2, $t2, $t4 \n" |
| "addu.ph $t6, $t6, $t5 \n" |
| "sll $t5, $t0, 1 \n" |
| "add $t0, $t5, $t0 \n" |
| "shra_r.ph $t2, $t2, 2 \n" |
| "shra_r.ph $t6, $t6, 2 \n" |
| "shll.ph $t4, $t2, 1 \n" |
| "addq.ph $t4, $t4, $t2 \n" |
| "addu $t0, $t0, $t1 \n" |
| "addiu %[src_ptr], %[src_ptr], 4 \n" |
| "shra_r.w $t0, $t0, 2 \n" |
| "addu.ph $t6, $t6, $t4 \n" |
| "shra_r.ph $t6, $t6, 2 \n" |
| "srl $t1, $t6, 16 \n" |
| "addiu %[dst_width], %[dst_width], -3 \n" |
| "sb $t1, 0(%[d]) \n" |
| "sb $t0, 1(%[d]) \n" |
| "sb $t6, 2(%[d]) \n" |
| "bgtz %[dst_width], 1b \n" |
| " addiu %[d], %[d], 3 \n" |
| "3: \n" |
| ".set pop \n" |
| : [src_ptr] "+r" (src_ptr), |
| [src_stride] "+r" (src_stride), |
| [d] "+r" (d), |
| [dst_width] "+r" (dst_width) |
| : |
| : "t0", "t1", "t2", "t3", |
| "t4", "t5", "t6" |
| ); |
| } |
| |
| void ScaleRowDown34_1_Box_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| uint8* d, int dst_width) { |
| __asm__ __volatile__ ( |
| ".set push \n" |
| ".set noreorder \n" |
| "repl.ph $t2, 3 \n" // 0x00030003 |
| |
| ".p2align 2 \n" |
| "1: \n" |
| "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| |
| "lwx $t1, %[src_stride](%[src_ptr]) \n" // |T3|T2|T1|T0| |
| "rotr $t4, $t0, 8 \n" // |S0|S3|S2|S1| |
| "rotr $t6, $t1, 8 \n" // |T0|T3|T2|T1| |
| "muleu_s.ph.qbl $t3, $t4, $t2 \n" // |S0*3|S3*3| |
| "muleu_s.ph.qbl $t5, $t6, $t2 \n" // |T0*3|T3*3| |
| "andi $t0, $t4, 0xFFFF \n" // |0|0|S2|S1| |
| "andi $t1, $t6, 0xFFFF \n" // |0|0|T2|T1| |
| "raddu.w.qb $t0, $t0 \n" |
| "raddu.w.qb $t1, $t1 \n" |
| "shra_r.w $t0, $t0, 1 \n" |
| "shra_r.w $t1, $t1, 1 \n" |
| "preceu.ph.qbr $t4, $t4 \n" // |0|S2|0|S1| |
| "preceu.ph.qbr $t6, $t6 \n" // |0|T2|0|T1| |
| "rotr $t4, $t4, 16 \n" // |0|S1|0|S2| |
| "rotr $t6, $t6, 16 \n" // |0|T1|0|T2| |
| "addu.ph $t4, $t4, $t3 \n" |
| "addu.ph $t6, $t6, $t5 \n" |
| "shra_r.ph $t6, $t6, 2 \n" |
| "shra_r.ph $t4, $t4, 2 \n" |
| "addu.ph $t6, $t6, $t4 \n" |
| "addiu %[src_ptr], %[src_ptr], 4 \n" |
| "shra_r.ph $t6, $t6, 1 \n" |
| "addu $t0, $t0, $t1 \n" |
| "addiu %[dst_width], %[dst_width], -3 \n" |
| "shra_r.w $t0, $t0, 1 \n" |
| "srl $t1, $t6, 16 \n" |
| "sb $t1, 0(%[d]) \n" |
| "sb $t0, 1(%[d]) \n" |
| "sb $t6, 2(%[d]) \n" |
| "bgtz %[dst_width], 1b \n" |
| " addiu %[d], %[d], 3 \n" |
| "3: \n" |
| ".set pop \n" |
| : [src_ptr] "+r" (src_ptr), |
| [src_stride] "+r" (src_stride), |
| [d] "+r" (d), |
| [dst_width] "+r" (dst_width) |
| : |
| : "t0", "t1", "t2", "t3", |
| "t4", "t5", "t6" |
| ); |
| } |
| |
| void ScaleRowDown38_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| uint8* dst, int dst_width) { |
| __asm__ __volatile__ ( |
| ".set push \n" |
| ".set noreorder \n" |
| |
| ".p2align 2 \n" |
| "1: \n" |
| "lw $t0, 0(%[src_ptr]) \n" // |3|2|1|0| |
| "lw $t1, 4(%[src_ptr]) \n" // |7|6|5|4| |
| "lw $t2, 8(%[src_ptr]) \n" // |11|10|9|8| |
| "lw $t3, 12(%[src_ptr]) \n" // |15|14|13|12| |
| "lw $t4, 16(%[src_ptr]) \n" // |19|18|17|16| |
| "lw $t5, 20(%[src_ptr]) \n" // |23|22|21|20| |
| "lw $t6, 24(%[src_ptr]) \n" // |27|26|25|24| |
| "lw $t7, 28(%[src_ptr]) \n" // |31|30|29|28| |
| "wsbh $t0, $t0 \n" // |2|3|0|1| |
| "wsbh $t6, $t6 \n" // |26|27|24|25| |
| "srl $t0, $t0, 8 \n" // |X|2|3|0| |
| "srl $t3, $t3, 16 \n" // |X|X|15|14| |
| "srl $t5, $t5, 16 \n" // |X|X|23|22| |
| "srl $t7, $t7, 16 \n" // |X|X|31|30| |
| "ins $t1, $t2, 24, 8 \n" // |8|6|5|4| |
| "ins $t6, $t5, 0, 8 \n" // |26|27|24|22| |
| "ins $t1, $t0, 0, 16 \n" // |8|6|3|0| |
| "ins $t6, $t7, 24, 8 \n" // |30|27|24|22| |
| "prepend $t2, $t3, 24 \n" // |X|15|14|11| |
| "ins $t4, $t4, 16, 8 \n" // |19|16|17|X| |
| "ins $t4, $t2, 0, 16 \n" // |19|16|14|11| |
| "addiu %[src_ptr], %[src_ptr], 32 \n" |
| "addiu %[dst_width], %[dst_width], -12 \n" |
| "addiu $t8,%[dst_width], -12 \n" |
| "sw $t1, 0(%[dst]) \n" |
| "sw $t4, 4(%[dst]) \n" |
| "sw $t6, 8(%[dst]) \n" |
| "bgez $t8, 1b \n" |
| " addiu %[dst], %[dst], 12 \n" |
| ".set pop \n" |
| : [src_ptr] "+r" (src_ptr), |
| [dst] "+r" (dst), |
| [dst_width] "+r" (dst_width) |
| : |
| : "t0", "t1", "t2", "t3", "t4", |
| "t5", "t6", "t7", "t8" |
| ); |
| } |
| |
| void ScaleRowDown38_2_Box_MIPS_DSPR2(const uint8* src_ptr, ptrdiff_t src_stride, |
| uint8* dst_ptr, int dst_width) { |
| intptr_t stride = src_stride; |
| const uint8* t = src_ptr + stride; |
| const int c = 0x2AAA; |
| |
| __asm__ __volatile__ ( |
| ".set push \n" |
| ".set noreorder \n" |
| |
| ".p2align 2 \n" |
| "1: \n" |
| "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| |
| "lw $t1, 4(%[src_ptr]) \n" // |S7|S6|S5|S4| |
| "lw $t2, 0(%[t]) \n" // |T3|T2|T1|T0| |
| "lw $t3, 4(%[t]) \n" // |T7|T6|T5|T4| |
| "rotr $t1, $t1, 16 \n" // |S5|S4|S7|S6| |
| "packrl.ph $t4, $t1, $t3 \n" // |S7|S6|T7|T6| |
| "packrl.ph $t5, $t3, $t1 \n" // |T5|T4|S5|S4| |
| "raddu.w.qb $t4, $t4 \n" // S7+S6+T7+T6 |
| "raddu.w.qb $t5, $t5 \n" // T5+T4+S5+S4 |
| "precrq.qb.ph $t6, $t0, $t2 \n" // |S3|S1|T3|T1| |
| "precrq.qb.ph $t6, $t6, $t6 \n" // |S3|T3|S3|T3| |
| "srl $t4, $t4, 2 \n" // t4 / 4 |
| "srl $t6, $t6, 16 \n" // |0|0|S3|T3| |
| "raddu.w.qb $t6, $t6 \n" // 0+0+S3+T3 |
| "addu $t6, $t5, $t6 \n" |
| "mul $t6, $t6, %[c] \n" // t6 * 0x2AAA |
| "sll $t0, $t0, 8 \n" // |S2|S1|S0|0| |
| "sll $t2, $t2, 8 \n" // |T2|T1|T0|0| |
| "raddu.w.qb $t0, $t0 \n" // S2+S1+S0+0 |
| "raddu.w.qb $t2, $t2 \n" // T2+T1+T0+0 |
| "addu $t0, $t0, $t2 \n" |
| "mul $t0, $t0, %[c] \n" // t0 * 0x2AAA |
| "addiu %[src_ptr], %[src_ptr], 8 \n" |
| "addiu %[t], %[t], 8 \n" |
| "addiu %[dst_width], %[dst_width], -3 \n" |
| "addiu %[dst_ptr], %[dst_ptr], 3 \n" |
| "srl $t6, $t6, 16 \n" |
| "srl $t0, $t0, 16 \n" |
| "sb $t4, -1(%[dst_ptr]) \n" |
| "sb $t6, -2(%[dst_ptr]) \n" |
| "bgtz %[dst_width], 1b \n" |
| " sb $t0, -3(%[dst_ptr]) \n" |
| ".set pop \n" |
| : [src_ptr] "+r" (src_ptr), |
| [dst_ptr] "+r" (dst_ptr), |
| [t] "+r" (t), |
| [dst_width] "+r" (dst_width) |
| : [c] "r" (c) |
| : "t0", "t1", "t2", "t3", "t4", "t5", "t6" |
| ); |
| } |
| |
| void ScaleRowDown38_3_Box_MIPS_DSPR2(const uint8* src_ptr, |
| ptrdiff_t src_stride, |
| uint8* dst_ptr, int dst_width) { |
| intptr_t stride = src_stride; |
| const uint8* s1 = src_ptr + stride; |
| stride += stride; |
| const uint8* s2 = src_ptr + stride; |
| const int c1 = 0x1C71; |
| const int c2 = 0x2AAA; |
| |
| __asm__ __volatile__ ( |
| ".set push \n" |
| ".set noreorder \n" |
| |
| ".p2align 2 \n" |
| "1: \n" |
| "lw $t0, 0(%[src_ptr]) \n" // |S3|S2|S1|S0| |
| "lw $t1, 4(%[src_ptr]) \n" // |S7|S6|S5|S4| |
| "lw $t2, 0(%[s1]) \n" // |T3|T2|T1|T0| |
| "lw $t3, 4(%[s1]) \n" // |T7|T6|T5|T4| |
| "lw $t4, 0(%[s2]) \n" // |R3|R2|R1|R0| |
| "lw $t5, 4(%[s2]) \n" // |R7|R6|R5|R4| |
| "rotr $t1, $t1, 16 \n" // |S5|S4|S7|S6| |
| "packrl.ph $t6, $t1, $t3 \n" // |S7|S6|T7|T6| |
| "raddu.w.qb $t6, $t6 \n" // S7+S6+T7+T6 |
| "packrl.ph $t7, $t3, $t1 \n" // |T5|T4|S5|S4| |
| "raddu.w.qb $t7, $t7 \n" // T5+T4+S5+S4 |
| "sll $t8, $t5, 16 \n" // |R5|R4|0|0| |
| "raddu.w.qb $t8, $t8 \n" // R5+R4 |
| "addu $t7, $t7, $t8 \n" |
| "srl $t8, $t5, 16 \n" // |0|0|R7|R6| |
| "raddu.w.qb $t8, $t8 \n" // R7 + R6 |
| "addu $t6, $t6, $t8 \n" |
| "mul $t6, $t6, %[c2] \n" // t6 * 0x2AAA |
| "precrq.qb.ph $t8, $t0, $t2 \n" // |S3|S1|T3|T1| |
| "precrq.qb.ph $t8, $t8, $t4 \n" // |S3|T3|R3|R1| |
| "srl $t8, $t8, 8 \n" // |0|S3|T3|R3| |
| "raddu.w.qb $t8, $t8 \n" // S3 + T3 + R3 |
| "addu $t7, $t7, $t8 \n" |
| "mul $t7, $t7, %[c1] \n" // t7 * 0x1C71 |
| "sll $t0, $t0, 8 \n" // |S2|S1|S0|0| |
| "sll $t2, $t2, 8 \n" // |T2|T1|T0|0| |
| "sll $t4, $t4, 8 \n" // |R2|R1|R0|0| |
| "raddu.w.qb $t0, $t0 \n" |
| "raddu.w.qb $t2, $t2 \n" |
| "raddu.w.qb $t4, $t4 \n" |
| "addu $t0, $t0, $t2 \n" |
| "addu $t0, $t0, $t4 \n" |
| "mul $t0, $t0, %[c1] \n" // t0 * 0x1C71 |
| "addiu %[src_ptr], %[src_ptr], 8 \n" |
| "addiu %[s1], %[s1], 8 \n" |
| "addiu %[s2], %[s2], 8 \n" |
| "addiu %[dst_width], %[dst_width], -3 \n" |
| "addiu %[dst_ptr], %[dst_ptr], 3 \n" |
| "srl $t6, $t6, 16 \n" |
| "srl $t7, $t7, 16 \n" |
| "srl $t0, $t0, 16 \n" |
| "sb $t6, -1(%[dst_ptr]) \n" |
| "sb $t7, -2(%[dst_ptr]) \n" |
| "bgtz %[dst_width], 1b \n" |
| " sb $t0, -3(%[dst_ptr]) \n" |
| ".set pop \n" |
| : [src_ptr] "+r" (src_ptr), |
| [dst_ptr] "+r" (dst_ptr), |
| [s1] "+r" (s1), |
| [s2] "+r" (s2), |
| [dst_width] "+r" (dst_width) |
| : [c1] "r" (c1), [c2] "r" (c2) |
| : "t0", "t1", "t2", "t3", "t4", |
| "t5", "t6", "t7", "t8" |
| ); |
| } |
| |
| #endif // defined(__mips_dsp) && (__mips_dsp_rev >= 2) |
| |
| #ifdef __cplusplus |
| } // extern "C" |
| } // namespace libyuv |
| #endif |
| |
