ref: 43fc0879082e9c010c08c68c6147527f0d859bf9
dir: /vpx_dsp/mips/itrans16_dspr2.c/
/*
* Copyright (c) 2015 The WebM 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 "./vpx_config.h"
#include "./vpx_dsp_rtcd.h"
#include "vpx_dsp/mips/inv_txfm_dspr2.h"
#include "vpx_dsp/txfm_common.h"
#if HAVE_DSPR2
void idct16_rows_dspr2(const int16_t *input, int16_t *output,
uint32_t no_rows) {
int i;
int step1_0, step1_1, step1_2, step1_3, step1_4, step1_5, step1_6, step1_7;
int step1_10, step1_11, step1_12, step1_13;
int step2_0, step2_1, step2_2, step2_3;
int step2_8, step2_9, step2_10, step2_11;
int step2_12, step2_13, step2_14, step2_15;
int load1, load2, load3, load4, load5, load6, load7, load8;
int result1, result2, result3, result4;
const int const_2_power_13 = 8192;
for (i = no_rows; i--;) {
/* prefetch row */
prefetch_load((const uint8_t *)(input + 16));
__asm__ __volatile__(
"lh %[load1], 0(%[input]) \n\t"
"lh %[load2], 16(%[input]) \n\t"
"lh %[load3], 8(%[input]) \n\t"
"lh %[load4], 24(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"add %[result1], %[load1], %[load2] \n\t"
"sub %[result2], %[load1], %[load2] \n\t"
"madd $ac1, %[result1], %[cospi_16_64] \n\t"
"madd $ac2, %[result2], %[cospi_16_64] \n\t"
"extp %[step2_0], $ac1, 31 \n\t"
"extp %[step2_1], $ac2, 31 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac3, %[load3], %[cospi_24_64] \n\t"
"msub $ac3, %[load4], %[cospi_8_64] \n\t"
"extp %[step2_2], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"madd $ac1, %[load3], %[cospi_8_64] \n\t"
"madd $ac1, %[load4], %[cospi_24_64] \n\t"
"extp %[step2_3], $ac1, 31 \n\t"
"add %[step1_0], %[step2_0], %[step2_3] \n\t"
"add %[step1_1], %[step2_1], %[step2_2] \n\t"
"sub %[step1_2], %[step2_1], %[step2_2] \n\t"
"sub %[step1_3], %[step2_0], %[step2_3] \n\t"
: [load1] "=&r"(load1), [load2] "=&r"(load2), [load3] "=&r"(load3),
[load4] "=&r"(load4), [result1] "=&r"(result1),
[result2] "=&r"(result2), [step2_0] "=&r"(step2_0),
[step2_1] "=&r"(step2_1), [step2_2] "=&r"(step2_2),
[step2_3] "=&r"(step2_3), [step1_0] "=r"(step1_0),
[step1_1] "=r"(step1_1), [step1_2] "=r"(step1_2),
[step1_3] "=r"(step1_3)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_24_64] "r"(cospi_24_64), [cospi_8_64] "r"(cospi_8_64),
[cospi_16_64] "r"(cospi_16_64));
__asm__ __volatile__(
"lh %[load5], 2(%[input]) \n\t"
"lh %[load6], 30(%[input]) \n\t"
"lh %[load7], 18(%[input]) \n\t"
"lh %[load8], 14(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load5], %[cospi_30_64] \n\t"
"msub $ac1, %[load6], %[cospi_2_64] \n\t"
"extp %[result1], $ac1, 31 \n\t"
"madd $ac3, %[load7], %[cospi_14_64] \n\t"
"msub $ac3, %[load8], %[cospi_18_64] \n\t"
"extp %[result2], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"madd $ac1, %[load7], %[cospi_18_64] \n\t"
"madd $ac1, %[load8], %[cospi_14_64] \n\t"
"extp %[result3], $ac1, 31 \n\t"
"madd $ac2, %[load5], %[cospi_2_64] \n\t"
"madd $ac2, %[load6], %[cospi_30_64] \n\t"
"extp %[result4], $ac2, 31 \n\t"
"sub %[load5], %[result1], %[result2] \n\t"
"sub %[load6], %[result4], %[result3] \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load6], %[cospi_24_64] \n\t"
"msub $ac1, %[load5], %[cospi_8_64] \n\t"
"madd $ac3, %[load5], %[cospi_24_64] \n\t"
"madd $ac3, %[load6], %[cospi_8_64] \n\t"
"extp %[step2_9], $ac1, 31 \n\t"
"extp %[step2_14], $ac3, 31 \n\t"
"add %[step2_8], %[result1], %[result2] \n\t"
"add %[step2_15], %[result4], %[result3] \n\t"
: [load5] "=&r"(load5), [load6] "=&r"(load6), [load7] "=&r"(load7),
[load8] "=&r"(load8), [result1] "=&r"(result1),
[result2] "=&r"(result2), [result3] "=&r"(result3),
[result4] "=&r"(result4), [step2_8] "=r"(step2_8),
[step2_15] "=r"(step2_15), [step2_9] "=r"(step2_9),
[step2_14] "=r"(step2_14)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_30_64] "r"(cospi_30_64), [cospi_2_64] "r"(cospi_2_64),
[cospi_14_64] "r"(cospi_14_64), [cospi_18_64] "r"(cospi_18_64),
[cospi_24_64] "r"(cospi_24_64), [cospi_8_64] "r"(cospi_8_64));
__asm__ __volatile__(
"lh %[load1], 10(%[input]) \n\t"
"lh %[load2], 22(%[input]) \n\t"
"lh %[load3], 26(%[input]) \n\t"
"lh %[load4], 6(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load1], %[cospi_22_64] \n\t"
"msub $ac1, %[load2], %[cospi_10_64] \n\t"
"extp %[result1], $ac1, 31 \n\t"
"madd $ac3, %[load3], %[cospi_6_64] \n\t"
"msub $ac3, %[load4], %[cospi_26_64] \n\t"
"extp %[result2], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"madd $ac1, %[load1], %[cospi_10_64] \n\t"
"madd $ac1, %[load2], %[cospi_22_64] \n\t"
"extp %[result3], $ac1, 31 \n\t"
"madd $ac2, %[load3], %[cospi_26_64] \n\t"
"madd $ac2, %[load4], %[cospi_6_64] \n\t"
"extp %[result4], $ac2, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"sub %[load1], %[result2], %[result1] \n\t"
"sub %[load2], %[result4], %[result3] \n\t"
"msub $ac1, %[load1], %[cospi_24_64] \n\t"
"msub $ac1, %[load2], %[cospi_8_64] \n\t"
"madd $ac3, %[load2], %[cospi_24_64] \n\t"
"msub $ac3, %[load1], %[cospi_8_64] \n\t"
"extp %[step2_10], $ac1, 31 \n\t"
"extp %[step2_13], $ac3, 31 \n\t"
"add %[step2_11], %[result1], %[result2] \n\t"
"add %[step2_12], %[result4], %[result3] \n\t"
: [load1] "=&r"(load1), [load2] "=&r"(load2), [load3] "=&r"(load3),
[load4] "=&r"(load4), [result1] "=&r"(result1),
[result2] "=&r"(result2), [result3] "=&r"(result3),
[result4] "=&r"(result4), [step2_10] "=r"(step2_10),
[step2_11] "=r"(step2_11), [step2_12] "=r"(step2_12),
[step2_13] "=r"(step2_13)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_22_64] "r"(cospi_22_64), [cospi_10_64] "r"(cospi_10_64),
[cospi_6_64] "r"(cospi_6_64), [cospi_26_64] "r"(cospi_26_64),
[cospi_24_64] "r"(cospi_24_64), [cospi_8_64] "r"(cospi_8_64));
__asm__ __volatile__(
"lh %[load5], 4(%[input]) \n\t"
"lh %[load6], 28(%[input]) \n\t"
"lh %[load7], 20(%[input]) \n\t"
"lh %[load8], 12(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load5], %[cospi_28_64] \n\t"
"msub $ac1, %[load6], %[cospi_4_64] \n\t"
"extp %[result1], $ac1, 31 \n\t"
"madd $ac3, %[load7], %[cospi_12_64] \n\t"
"msub $ac3, %[load8], %[cospi_20_64] \n\t"
"extp %[result2], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"madd $ac1, %[load7], %[cospi_20_64] \n\t"
"madd $ac1, %[load8], %[cospi_12_64] \n\t"
"extp %[result3], $ac1, 31 \n\t"
"madd $ac2, %[load5], %[cospi_4_64] \n\t"
"madd $ac2, %[load6], %[cospi_28_64] \n\t"
"extp %[result4], $ac2, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"sub %[load5], %[result4], %[result3] \n\t"
"sub %[load5], %[load5], %[result1] \n\t"
"add %[load5], %[load5], %[result2] \n\t"
"sub %[load6], %[result1], %[result2] \n\t"
"sub %[load6], %[load6], %[result3] \n\t"
"add %[load6], %[load6], %[result4] \n\t"
"madd $ac1, %[load5], %[cospi_16_64] \n\t"
"madd $ac3, %[load6], %[cospi_16_64] \n\t"
"extp %[step1_5], $ac1, 31 \n\t"
"extp %[step1_6], $ac3, 31 \n\t"
"add %[step1_4], %[result1], %[result2] \n\t"
"add %[step1_7], %[result4], %[result3] \n\t"
: [load5] "=&r"(load5), [load6] "=&r"(load6), [load7] "=&r"(load7),
[load8] "=&r"(load8), [result1] "=&r"(result1),
[result2] "=&r"(result2), [result3] "=&r"(result3),
[result4] "=&r"(result4), [step1_4] "=r"(step1_4),
[step1_5] "=r"(step1_5), [step1_6] "=r"(step1_6),
[step1_7] "=r"(step1_7)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_20_64] "r"(cospi_20_64), [cospi_12_64] "r"(cospi_12_64),
[cospi_4_64] "r"(cospi_4_64), [cospi_28_64] "r"(cospi_28_64),
[cospi_16_64] "r"(cospi_16_64));
__asm__ __volatile__(
"mtlo %[const_2_power_13], $ac0 \n\t"
"mthi $zero, $ac0 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"sub %[load5], %[step2_14], %[step2_13] \n\t"
"sub %[load5], %[load5], %[step2_9] \n\t"
"add %[load5], %[load5], %[step2_10] \n\t"
"madd $ac0, %[load5], %[cospi_16_64] \n\t"
"sub %[load6], %[step2_14], %[step2_13] \n\t"
"sub %[load6], %[load6], %[step2_10] \n\t"
"add %[load6], %[load6], %[step2_9] \n\t"
"madd $ac1, %[load6], %[cospi_16_64] \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"sub %[load5], %[step2_15], %[step2_12] \n\t"
"sub %[load5], %[load5], %[step2_8] \n\t"
"add %[load5], %[load5], %[step2_11] \n\t"
"madd $ac2, %[load5], %[cospi_16_64] \n\t"
"sub %[load6], %[step2_15], %[step2_12] \n\t"
"sub %[load6], %[load6], %[step2_11] \n\t"
"add %[load6], %[load6], %[step2_8] \n\t"
"madd $ac3, %[load6], %[cospi_16_64] \n\t"
"extp %[step1_10], $ac0, 31 \n\t"
"extp %[step1_13], $ac1, 31 \n\t"
"extp %[step1_11], $ac2, 31 \n\t"
"extp %[step1_12], $ac3, 31 \n\t"
: [load5] "=&r"(load5), [load6] "=&r"(load6), [step1_10] "=r"(step1_10),
[step1_11] "=r"(step1_11), [step1_12] "=r"(step1_12),
[step1_13] "=r"(step1_13)
: [const_2_power_13] "r"(const_2_power_13), [step2_14] "r"(step2_14),
[step2_13] "r"(step2_13), [step2_9] "r"(step2_9),
[step2_10] "r"(step2_10), [step2_15] "r"(step2_15),
[step2_12] "r"(step2_12), [step2_8] "r"(step2_8),
[step2_11] "r"(step2_11), [cospi_16_64] "r"(cospi_16_64));
__asm__ __volatile__(
"add %[load5], %[step1_0], %[step1_7] \n\t"
"add %[load5], %[load5], %[step2_12] \n\t"
"add %[load5], %[load5], %[step2_15] \n\t"
"add %[load6], %[step1_1], %[step1_6] \n\t"
"add %[load6], %[load6], %[step2_13] \n\t"
"add %[load6], %[load6], %[step2_14] \n\t"
"sh %[load5], 0(%[output]) \n\t"
"sh %[load6], 32(%[output]) \n\t"
"sub %[load5], %[step1_1], %[step1_6] \n\t"
"add %[load5], %[load5], %[step2_9] \n\t"
"add %[load5], %[load5], %[step2_10] \n\t"
"sub %[load6], %[step1_0], %[step1_7] \n\t"
"add %[load6], %[load6], %[step2_8] \n\t"
"add %[load6], %[load6], %[step2_11] \n\t"
"sh %[load5], 192(%[output]) \n\t"
"sh %[load6], 224(%[output]) \n\t"
"sub %[load5], %[step1_0], %[step1_7] \n\t"
"sub %[load5], %[load5], %[step2_8] \n\t"
"sub %[load5], %[load5], %[step2_11] \n\t"
"sub %[load6], %[step1_1], %[step1_6] \n\t"
"sub %[load6], %[load6], %[step2_9] \n\t"
"sub %[load6], %[load6], %[step2_10] \n\t"
"sh %[load5], 256(%[output]) \n\t"
"sh %[load6], 288(%[output]) \n\t"
"add %[load5], %[step1_1], %[step1_6] \n\t"
"sub %[load5], %[load5], %[step2_13] \n\t"
"sub %[load5], %[load5], %[step2_14] \n\t"
"add %[load6], %[step1_0], %[step1_7] \n\t"
"sub %[load6], %[load6], %[step2_12] \n\t"
"sub %[load6], %[load6], %[step2_15] \n\t"
"sh %[load5], 448(%[output]) \n\t"
"sh %[load6], 480(%[output]) \n\t"
: [load5] "=&r"(load5), [load6] "=&r"(load6)
: [output] "r"(output), [step1_0] "r"(step1_0), [step1_1] "r"(step1_1),
[step1_6] "r"(step1_6), [step1_7] "r"(step1_7),
[step2_8] "r"(step2_8), [step2_9] "r"(step2_9),
[step2_10] "r"(step2_10), [step2_11] "r"(step2_11),
[step2_12] "r"(step2_12), [step2_13] "r"(step2_13),
[step2_14] "r"(step2_14), [step2_15] "r"(step2_15));
__asm__ __volatile__(
"add %[load5], %[step1_2], %[step1_5] \n\t"
"add %[load5], %[load5], %[step1_13] \n\t"
"add %[load6], %[step1_3], %[step1_4] \n\t"
"add %[load6], %[load6], %[step1_12] \n\t"
"sh %[load5], 64(%[output]) \n\t"
"sh %[load6], 96(%[output]) \n\t"
"sub %[load5], %[step1_3], %[step1_4] \n\t"
"add %[load5], %[load5], %[step1_11] \n\t"
"sub %[load6], %[step1_2], %[step1_5] \n\t"
"add %[load6], %[load6], %[step1_10] \n\t"
"sh %[load5], 128(%[output]) \n\t"
"sh %[load6], 160(%[output]) \n\t"
"sub %[load5], %[step1_2], %[step1_5] \n\t"
"sub %[load5], %[load5], %[step1_10] \n\t"
"sub %[load6], %[step1_3], %[step1_4] \n\t"
"sub %[load6], %[load6], %[step1_11] \n\t"
"sh %[load5], 320(%[output]) \n\t"
"sh %[load6], 352(%[output]) \n\t"
"add %[load5], %[step1_3], %[step1_4] \n\t"
"sub %[load5], %[load5], %[step1_12] \n\t"
"add %[load6], %[step1_2], %[step1_5] \n\t"
"sub %[load6], %[load6], %[step1_13] \n\t"
"sh %[load5], 384(%[output]) \n\t"
"sh %[load6], 416(%[output]) \n\t"
: [load5] "=&r"(load5), [load6] "=&r"(load6)
: [output] "r"(output), [step1_2] "r"(step1_2), [step1_3] "r"(step1_3),
[step1_4] "r"(step1_4), [step1_5] "r"(step1_5),
[step1_10] "r"(step1_10), [step1_11] "r"(step1_11),
[step1_12] "r"(step1_12), [step1_13] "r"(step1_13));
input += 16;
output += 1;
}
}
void idct16_cols_add_blk_dspr2(int16_t *input, uint8_t *dest, int stride) {
int i;
int step1_0, step1_1, step1_2, step1_3, step1_4, step1_5, step1_6, step1_7;
int step1_8, step1_9, step1_10, step1_11;
int step1_12, step1_13, step1_14, step1_15;
int step2_0, step2_1, step2_2, step2_3;
int step2_8, step2_9, step2_10, step2_11;
int step2_12, step2_13, step2_14, step2_15;
int load1, load2, load3, load4, load5, load6, load7, load8;
int result1, result2, result3, result4;
const int const_2_power_13 = 8192;
uint8_t *dest_pix;
uint8_t *cm = vpx_ff_cropTbl;
/* prefetch vpx_ff_cropTbl */
prefetch_load(vpx_ff_cropTbl);
prefetch_load(vpx_ff_cropTbl + 32);
prefetch_load(vpx_ff_cropTbl + 64);
prefetch_load(vpx_ff_cropTbl + 96);
prefetch_load(vpx_ff_cropTbl + 128);
prefetch_load(vpx_ff_cropTbl + 160);
prefetch_load(vpx_ff_cropTbl + 192);
prefetch_load(vpx_ff_cropTbl + 224);
for (i = 0; i < 16; ++i) {
dest_pix = (dest + i);
__asm__ __volatile__(
"lh %[load1], 0(%[input]) \n\t"
"lh %[load2], 16(%[input]) \n\t"
"lh %[load3], 8(%[input]) \n\t"
"lh %[load4], 24(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"add %[result1], %[load1], %[load2] \n\t"
"sub %[result2], %[load1], %[load2] \n\t"
"madd $ac1, %[result1], %[cospi_16_64] \n\t"
"madd $ac2, %[result2], %[cospi_16_64] \n\t"
"extp %[step2_0], $ac1, 31 \n\t"
"extp %[step2_1], $ac2, 31 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac3, %[load3], %[cospi_24_64] \n\t"
"msub $ac3, %[load4], %[cospi_8_64] \n\t"
"extp %[step2_2], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"madd $ac1, %[load3], %[cospi_8_64] \n\t"
"madd $ac1, %[load4], %[cospi_24_64] \n\t"
"extp %[step2_3], $ac1, 31 \n\t"
"add %[step1_0], %[step2_0], %[step2_3] \n\t"
"add %[step1_1], %[step2_1], %[step2_2] \n\t"
"sub %[step1_2], %[step2_1], %[step2_2] \n\t"
"sub %[step1_3], %[step2_0], %[step2_3] \n\t"
: [load1] "=&r"(load1), [load2] "=&r"(load2), [load3] "=&r"(load3),
[load4] "=&r"(load4), [result1] "=&r"(result1),
[result2] "=&r"(result2), [step2_0] "=&r"(step2_0),
[step2_1] "=&r"(step2_1), [step2_2] "=&r"(step2_2),
[step2_3] "=&r"(step2_3), [step1_0] "=r"(step1_0),
[step1_1] "=r"(step1_1), [step1_2] "=r"(step1_2),
[step1_3] "=r"(step1_3)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_24_64] "r"(cospi_24_64), [cospi_8_64] "r"(cospi_8_64),
[cospi_16_64] "r"(cospi_16_64));
__asm__ __volatile__(
"lh %[load5], 2(%[input]) \n\t"
"lh %[load6], 30(%[input]) \n\t"
"lh %[load7], 18(%[input]) \n\t"
"lh %[load8], 14(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load5], %[cospi_30_64] \n\t"
"msub $ac1, %[load6], %[cospi_2_64] \n\t"
"extp %[result1], $ac1, 31 \n\t"
"madd $ac3, %[load7], %[cospi_14_64] \n\t"
"msub $ac3, %[load8], %[cospi_18_64] \n\t"
"extp %[result2], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"madd $ac1, %[load7], %[cospi_18_64] \n\t"
"madd $ac1, %[load8], %[cospi_14_64] \n\t"
"extp %[result3], $ac1, 31 \n\t"
"madd $ac2, %[load5], %[cospi_2_64] \n\t"
"madd $ac2, %[load6], %[cospi_30_64] \n\t"
"extp %[result4], $ac2, 31 \n\t"
"sub %[load5], %[result1], %[result2] \n\t"
"sub %[load6], %[result4], %[result3] \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load6], %[cospi_24_64] \n\t"
"msub $ac1, %[load5], %[cospi_8_64] \n\t"
"madd $ac3, %[load5], %[cospi_24_64] \n\t"
"madd $ac3, %[load6], %[cospi_8_64] \n\t"
"extp %[step2_9], $ac1, 31 \n\t"
"extp %[step2_14], $ac3, 31 \n\t"
"add %[step2_8], %[result1], %[result2] \n\t"
"add %[step2_15], %[result4], %[result3] \n\t"
: [load5] "=&r"(load5), [load6] "=&r"(load6), [load7] "=&r"(load7),
[load8] "=&r"(load8), [result1] "=&r"(result1),
[result2] "=&r"(result2), [result3] "=&r"(result3),
[result4] "=&r"(result4), [step2_8] "=r"(step2_8),
[step2_15] "=r"(step2_15), [step2_9] "=r"(step2_9),
[step2_14] "=r"(step2_14)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_30_64] "r"(cospi_30_64), [cospi_2_64] "r"(cospi_2_64),
[cospi_14_64] "r"(cospi_14_64), [cospi_18_64] "r"(cospi_18_64),
[cospi_24_64] "r"(cospi_24_64), [cospi_8_64] "r"(cospi_8_64));
__asm__ __volatile__(
"lh %[load1], 10(%[input]) \n\t"
"lh %[load2], 22(%[input]) \n\t"
"lh %[load3], 26(%[input]) \n\t"
"lh %[load4], 6(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load1], %[cospi_22_64] \n\t"
"msub $ac1, %[load2], %[cospi_10_64] \n\t"
"extp %[result1], $ac1, 31 \n\t"
"madd $ac3, %[load3], %[cospi_6_64] \n\t"
"msub $ac3, %[load4], %[cospi_26_64] \n\t"
"extp %[result2], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"madd $ac1, %[load1], %[cospi_10_64] \n\t"
"madd $ac1, %[load2], %[cospi_22_64] \n\t"
"extp %[result3], $ac1, 31 \n\t"
"madd $ac2, %[load3], %[cospi_26_64] \n\t"
"madd $ac2, %[load4], %[cospi_6_64] \n\t"
"extp %[result4], $ac2, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"sub %[load1], %[result2], %[result1] \n\t"
"sub %[load2], %[result4], %[result3] \n\t"
"msub $ac1, %[load1], %[cospi_24_64] \n\t"
"msub $ac1, %[load2], %[cospi_8_64] \n\t"
"madd $ac3, %[load2], %[cospi_24_64] \n\t"
"msub $ac3, %[load1], %[cospi_8_64] \n\t"
"extp %[step2_10], $ac1, 31 \n\t"
"extp %[step2_13], $ac3, 31 \n\t"
"add %[step2_11], %[result1], %[result2] \n\t"
"add %[step2_12], %[result4], %[result3] \n\t"
: [load1] "=&r"(load1), [load2] "=&r"(load2), [load3] "=&r"(load3),
[load4] "=&r"(load4), [result1] "=&r"(result1),
[result2] "=&r"(result2), [result3] "=&r"(result3),
[result4] "=&r"(result4), [step2_10] "=r"(step2_10),
[step2_11] "=r"(step2_11), [step2_12] "=r"(step2_12),
[step2_13] "=r"(step2_13)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_22_64] "r"(cospi_22_64), [cospi_10_64] "r"(cospi_10_64),
[cospi_6_64] "r"(cospi_6_64), [cospi_26_64] "r"(cospi_26_64),
[cospi_24_64] "r"(cospi_24_64), [cospi_8_64] "r"(cospi_8_64));
__asm__ __volatile__(
"lh %[load5], 4(%[input]) \n\t"
"lh %[load6], 28(%[input]) \n\t"
"lh %[load7], 20(%[input]) \n\t"
"lh %[load8], 12(%[input]) \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"madd $ac1, %[load5], %[cospi_28_64] \n\t"
"msub $ac1, %[load6], %[cospi_4_64] \n\t"
"extp %[result1], $ac1, 31 \n\t"
"madd $ac3, %[load7], %[cospi_12_64] \n\t"
"msub $ac3, %[load8], %[cospi_20_64] \n\t"
"extp %[result2], $ac3, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"madd $ac1, %[load7], %[cospi_20_64] \n\t"
"madd $ac1, %[load8], %[cospi_12_64] \n\t"
"extp %[result3], $ac1, 31 \n\t"
"madd $ac2, %[load5], %[cospi_4_64] \n\t"
"madd $ac2, %[load6], %[cospi_28_64] \n\t"
"extp %[result4], $ac2, 31 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"sub %[load5], %[result4], %[result3] \n\t"
"sub %[load5], %[load5], %[result1] \n\t"
"add %[load5], %[load5], %[result2] \n\t"
"sub %[load6], %[result1], %[result2] \n\t"
"sub %[load6], %[load6], %[result3] \n\t"
"add %[load6], %[load6], %[result4] \n\t"
"madd $ac1, %[load5], %[cospi_16_64] \n\t"
"madd $ac3, %[load6], %[cospi_16_64] \n\t"
"extp %[step1_5], $ac1, 31 \n\t"
"extp %[step1_6], $ac3, 31 \n\t"
"add %[step1_4], %[result1], %[result2] \n\t"
"add %[step1_7], %[result4], %[result3] \n\t"
: [load5] "=&r"(load5), [load6] "=&r"(load6), [load7] "=&r"(load7),
[load8] "=&r"(load8), [result1] "=&r"(result1),
[result2] "=&r"(result2), [result3] "=&r"(result3),
[result4] "=&r"(result4), [step1_4] "=r"(step1_4),
[step1_5] "=r"(step1_5), [step1_6] "=r"(step1_6),
[step1_7] "=r"(step1_7)
: [const_2_power_13] "r"(const_2_power_13), [input] "r"(input),
[cospi_20_64] "r"(cospi_20_64), [cospi_12_64] "r"(cospi_12_64),
[cospi_4_64] "r"(cospi_4_64), [cospi_28_64] "r"(cospi_28_64),
[cospi_16_64] "r"(cospi_16_64));
__asm__ __volatile__(
"mtlo %[const_2_power_13], $ac0 \n\t"
"mthi $zero, $ac0 \n\t"
"mtlo %[const_2_power_13], $ac1 \n\t"
"mthi $zero, $ac1 \n\t"
"sub %[load5], %[step2_14], %[step2_13] \n\t"
"sub %[load5], %[load5], %[step2_9] \n\t"
"add %[load5], %[load5], %[step2_10] \n\t"
"madd $ac0, %[load5], %[cospi_16_64] \n\t"
"sub %[load6], %[step2_14], %[step2_13] \n\t"
"sub %[load6], %[load6], %[step2_10] \n\t"
"add %[load6], %[load6], %[step2_9] \n\t"
"madd $ac1, %[load6], %[cospi_16_64] \n\t"
"mtlo %[const_2_power_13], $ac2 \n\t"
"mthi $zero, $ac2 \n\t"
"mtlo %[const_2_power_13], $ac3 \n\t"
"mthi $zero, $ac3 \n\t"
"sub %[load5], %[step2_15], %[step2_12] \n\t"
"sub %[load5], %[load5], %[step2_8] \n\t"
"add %[load5], %[load5], %[step2_11] \n\t"
"madd $ac2, %[load5], %[cospi_16_64] \n\t"
"sub %[load6], %[step2_15], %[step2_12] \n\t"
"sub %[load6], %[load6], %[step2_11] \n\t"
"add %[load6], %[load6], %[step2_8] \n\t"
"madd $ac3, %[load6], %[cospi_16_64] \n\t"
"extp %[step1_10], $ac0, 31 \n\t"
"extp %[step1_13], $ac1, 31 \n\t"
"extp %[step1_11], $ac2, 31 \n\t"
"extp %[step1_12], $ac3, 31 \n\t"
: [load5] "=&r"(load5), [load6] "=&r"(load6), [step1_10] "=r"(step1_10),
[step1_11] "=r"(step1_11), [step1_12] "=r"(step1_12),
[step1_13] "=r"(step1_13)
: [const_2_power_13] "r"(const_2_power_13), [step2_14] "r"(step2_14),
[step2_13] "r"(step2_13), [step2_9] "r"(step2_9),
[step2_10] "r"(step2_10), [step2_15] "r"(step2_15),
[step2_12] "r"(step2_12), [step2_8] "r"(step2_8),
[step2_11] "r"(step2_11), [cospi_16_64] "r"(cospi_16_64));
step1_8 = step2_8 + step2_11;
step1_9 = step2_9 + step2_10;
step1_14 = step2_13 + step2_14;
step1_15 = step2_12 + step2_15;
__asm__ __volatile__(
"lbu %[load7], 0(%[dest_pix]) \n\t"
"add %[load5], %[step1_0], %[step1_7] \n\t"
"add %[load5], %[load5], %[step1_15] \n\t"
"addi %[load5], %[load5], 32 \n\t"
"sra %[load5], %[load5], 6 \n\t"
"add %[load7], %[load7], %[load5] \n\t"
"lbux %[load5], %[load7](%[cm]) \n\t"
"add %[load6], %[step1_1], %[step1_6] \n\t"
"add %[load6], %[load6], %[step1_14] \n\t"
"sb %[load5], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"lbu %[load8], 0(%[dest_pix]) \n\t"
"addi %[load6], %[load6], 32 \n\t"
"sra %[load6], %[load6], 6 \n\t"
"add %[load8], %[load8], %[load6] \n\t"
"lbux %[load6], %[load8](%[cm]) \n\t"
"sb %[load6], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"lbu %[load7], 0(%[dest_pix]) \n\t"
"add %[load5], %[step1_2], %[step1_5] \n\t"
"add %[load5], %[load5], %[step1_13] \n\t"
"addi %[load5], %[load5], 32 \n\t"
"sra %[load5], %[load5], 6 \n\t"
"add %[load7], %[load7], %[load5] \n\t"
"lbux %[load5], %[load7](%[cm]) \n\t"
"add %[load6], %[step1_3], %[step1_4] \n\t"
"add %[load6], %[load6], %[step1_12] \n\t"
"sb %[load5], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"lbu %[load8], 0(%[dest_pix]) \n\t"
"addi %[load6], %[load6], 32 \n\t"
"sra %[load6], %[load6], 6 \n\t"
"add %[load8], %[load8], %[load6] \n\t"
"lbux %[load6], %[load8](%[cm]) \n\t"
"sb %[load6], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"lbu %[load7], 0(%[dest_pix]) \n\t"
"sub %[load5], %[step1_3], %[step1_4] \n\t"
"add %[load5], %[load5], %[step1_11] \n\t"
"addi %[load5], %[load5], 32 \n\t"
"sra %[load5], %[load5], 6 \n\t"
"add %[load7], %[load7], %[load5] \n\t"
"lbux %[load5], %[load7](%[cm]) \n\t"
"sub %[load6], %[step1_2], %[step1_5] \n\t"
"add %[load6], %[load6], %[step1_10] \n\t"
"sb %[load5], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"lbu %[load8], 0(%[dest_pix]) \n\t"
"addi %[load6], %[load6], 32 \n\t"
"sra %[load6], %[load6], 6 \n\t"
"add %[load8], %[load8], %[load6] \n\t"
"lbux %[load6], %[load8](%[cm]) \n\t"
"sb %[load6], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"sub %[load5], %[step1_1], %[step1_6] \n\t"
"lbu %[load7], 0(%[dest_pix]) \n\t"
"add %[load5], %[load5], %[step1_9] \n\t"
"addi %[load5], %[load5], 32 \n\t"
"sra %[load5], %[load5], 6 \n\t"
"add %[load7], %[load7], %[load5] \n\t"
"lbux %[load5], %[load7](%[cm]) \n\t"
"sub %[load6], %[step1_0], %[step1_7] \n\t"
"add %[load6], %[load6], %[step1_8] \n\t"
"sb %[load5], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"lbu %[load8], 0(%[dest_pix]) \n\t"
"addi %[load6], %[load6], 32 \n\t"
"sra %[load6], %[load6], 6 \n\t"
"add %[load8], %[load8], %[load6] \n\t"
"lbux %[load6], %[load8](%[cm]) \n\t"
"sb %[load6], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"lbu %[load7], 0(%[dest_pix]) \n\t"
"sub %[load5], %[step1_0], %[step1_7] \n\t"
"sub %[load5], %[load5], %[step1_8] \n\t"
"addi %[load5], %[load5], 32 \n\t"
"sra %[load5], %[load5], 6 \n\t"
"add %[load7], %[load7], %[load5] \n\t"
"lbux %[load5], %[load7](%[cm]) \n\t"
"sub %[load6], %[step1_1], %[step1_6] \n\t"
"sub %[load6], %[load6], %[step1_9] \n\t"
"sb %[load5], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"lbu %[load8], 0(%[dest_pix]) \n\t"
"addi %[load6], %[load6], 32 \n\t"
"sra %[load6], %[load6], 6 \n\t"
"add %[load8], %[load8], %[load6] \n\t"
"lbux %[load6], %[load8](%[cm]) \n\t"
"sb %[load6], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"lbu %[load7], 0(%[dest_pix]) \n\t"
"sub %[load5], %[step1_2], %[step1_5] \n\t"
"sub %[load5], %[load5], %[step1_10] \n\t"
"addi %[load5], %[load5], 32 \n\t"
"sra %[load5], %[load5], 6 \n\t"
"add %[load7], %[load7], %[load5] \n\t"
"lbux %[load5], %[load7](%[cm]) \n\t"
"sub %[load6], %[step1_3], %[step1_4] \n\t"
"sub %[load6], %[load6], %[step1_11] \n\t"
"sb %[load5], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"lbu %[load8], 0(%[dest_pix]) \n\t"
"addi %[load6], %[load6], 32 \n\t"
"sra %[load6], %[load6], 6 \n\t"
"add %[load8], %[load8], %[load6] \n\t"
"lbux %[load6], %[load8](%[cm]) \n\t"
"sb %[load6], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"lbu %[load7], 0(%[dest_pix]) \n\t"
"add %[load5], %[step1_3], %[step1_4] \n\t"
"sub %[load5], %[load5], %[step1_12] \n\t"
"addi %[load5], %[load5], 32 \n\t"
"sra %[load5], %[load5], 6 \n\t"
"add %[load7], %[load7], %[load5] \n\t"
"lbux %[load5], %[load7](%[cm]) \n\t"
"add %[load6], %[step1_2], %[step1_5] \n\t"
"sub %[load6], %[load6], %[step1_13] \n\t"
"sb %[load5], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"lbu %[load8], 0(%[dest_pix]) \n\t"
"addi %[load6], %[load6], 32 \n\t"
"sra %[load6], %[load6], 6 \n\t"
"add %[load8], %[load8], %[load6] \n\t"
"lbux %[load6], %[load8](%[cm]) \n\t"
"sb %[load6], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"lbu %[load7], 0(%[dest_pix]) \n\t"
"add %[load5], %[step1_1], %[step1_6] \n\t"
"sub %[load5], %[load5], %[step1_14] \n\t"
"addi %[load5], %[load5], 32 \n\t"
"sra %[load5], %[load5], 6 \n\t"
"add %[load7], %[load7], %[load5] \n\t"
"lbux %[load5], %[load7](%[cm]) \n\t"
"add %[load6], %[step1_0], %[step1_7] \n\t"
"sub %[load6], %[load6], %[step1_15] \n\t"
"sb %[load5], 0(%[dest_pix]) \n\t"
"addu %[dest_pix], %[dest_pix], %[stride] \n\t"
"lbu %[load8], 0(%[dest_pix]) \n\t"
"addi %[load6], %[load6], 32 \n\t"
"sra %[load6], %[load6], 6 \n\t"
"add %[load8], %[load8], %[load6] \n\t"
"lbux %[load6], %[load8](%[cm]) \n\t"
"sb %[load6], 0(%[dest_pix]) \n\t"
: [load5] "=&r"(load5), [load6] "=&r"(load6), [load7] "=&r"(load7),
[load8] "=&r"(load8), [dest_pix] "+r"(dest_pix)
:
[cm] "r"(cm), [stride] "r"(stride), [step1_0] "r"(step1_0),
[step1_1] "r"(step1_1), [step1_2] "r"(step1_2), [step1_3] "r"(step1_3),
[step1_4] "r"(step1_4), [step1_5] "r"(step1_5), [step1_6] "r"(step1_6),
[step1_7] "r"(step1_7), [step1_8] "r"(step1_8), [step1_9] "r"(step1_9),
[step1_10] "r"(step1_10), [step1_11] "r"(step1_11),
[step1_12] "r"(step1_12), [step1_13] "r"(step1_13),
[step1_14] "r"(step1_14), [step1_15] "r"(step1_15));
input += 16;
}
}
void vpx_idct16x16_256_add_dspr2(const int16_t *input, uint8_t *dest,
int stride) {
DECLARE_ALIGNED(32, int16_t, out[16 * 16]);
uint32_t pos = 45;
/* bit positon for extract from acc */
__asm__ __volatile__("wrdsp %[pos], 1 \n\t" : : [pos] "r"(pos));
// First transform rows
idct16_rows_dspr2(input, out, 16);
// Then transform columns and add to dest
idct16_cols_add_blk_dspr2(out, dest, stride);
}
void vpx_idct16x16_10_add_dspr2(const int16_t *input, uint8_t *dest,
int stride) {
DECLARE_ALIGNED(32, int16_t, out[16 * 16]);
int16_t *outptr = out;
uint32_t i;
uint32_t pos = 45;
/* bit positon for extract from acc */
__asm__ __volatile__("wrdsp %[pos], 1 \n\t" : : [pos] "r"(pos));
// First transform rows. Since all non-zero dct coefficients are in
// upper-left 4x4 area, we only need to calculate first 4 rows here.
idct16_rows_dspr2(input, outptr, 4);
outptr += 4;
for (i = 0; i < 6; ++i) {
__asm__ __volatile__(
"sw $zero, 0(%[outptr]) \n\t"
"sw $zero, 32(%[outptr]) \n\t"
"sw $zero, 64(%[outptr]) \n\t"
"sw $zero, 96(%[outptr]) \n\t"
"sw $zero, 128(%[outptr]) \n\t"
"sw $zero, 160(%[outptr]) \n\t"
"sw $zero, 192(%[outptr]) \n\t"
"sw $zero, 224(%[outptr]) \n\t"
"sw $zero, 256(%[outptr]) \n\t"
"sw $zero, 288(%[outptr]) \n\t"
"sw $zero, 320(%[outptr]) \n\t"
"sw $zero, 352(%[outptr]) \n\t"
"sw $zero, 384(%[outptr]) \n\t"
"sw $zero, 416(%[outptr]) \n\t"
"sw $zero, 448(%[outptr]) \n\t"
"sw $zero, 480(%[outptr]) \n\t"
:
: [outptr] "r"(outptr));
outptr += 2;
}
// Then transform columns
idct16_cols_add_blk_dspr2(out, dest, stride);
}
void vpx_idct16x16_1_add_dspr2(const int16_t *input, uint8_t *dest,
int stride) {
uint32_t pos = 45;
int32_t out;
int32_t r;
int32_t a1, absa1;
int32_t vector_a1;
int32_t t1, t2, t3, t4;
int32_t vector_1, vector_2, vector_3, vector_4;
/* bit positon for extract from acc */
__asm__ __volatile__("wrdsp %[pos], 1 \n\t"
:
: [pos] "r"(pos));
out = DCT_CONST_ROUND_SHIFT_TWICE_COSPI_16_64(input[0]);
__asm__ __volatile__(
"addi %[out], %[out], 32 \n\t"
"sra %[a1], %[out], 6 \n\t"
: [out] "+r"(out), [a1] "=r"(a1)
:);
if (a1 < 0) {
/* use quad-byte
* input and output memory are four byte aligned */
__asm__ __volatile__(
"abs %[absa1], %[a1] \n\t"
"replv.qb %[vector_a1], %[absa1] \n\t"
: [absa1] "=r"(absa1), [vector_a1] "=r"(vector_a1)
: [a1] "r"(a1));
for (r = 16; r--;) {
__asm__ __volatile__(
"lw %[t1], 0(%[dest]) \n\t"
"lw %[t2], 4(%[dest]) \n\t"
"lw %[t3], 8(%[dest]) \n\t"
"lw %[t4], 12(%[dest]) \n\t"
"subu_s.qb %[vector_1], %[t1], %[vector_a1] \n\t"
"subu_s.qb %[vector_2], %[t2], %[vector_a1] \n\t"
"subu_s.qb %[vector_3], %[t3], %[vector_a1] \n\t"
"subu_s.qb %[vector_4], %[t4], %[vector_a1] \n\t"
"sw %[vector_1], 0(%[dest]) \n\t"
"sw %[vector_2], 4(%[dest]) \n\t"
"sw %[vector_3], 8(%[dest]) \n\t"
"sw %[vector_4], 12(%[dest]) \n\t"
"add %[dest], %[dest], %[stride] \n\t"
: [t1] "=&r"(t1), [t2] "=&r"(t2), [t3] "=&r"(t3), [t4] "=&r"(t4),
[vector_1] "=&r"(vector_1), [vector_2] "=&r"(vector_2),
[vector_3] "=&r"(vector_3), [vector_4] "=&r"(vector_4),
[dest] "+&r"(dest)
: [stride] "r"(stride), [vector_a1] "r"(vector_a1));
}
} else if (a1 > 255) {
int32_t a11, a12, vector_a11, vector_a12;
/* use quad-byte
* input and output memory are four byte aligned */
a11 = a1 >> 1;
a12 = a1 - a11;
__asm__ __volatile__(
"replv.qb %[vector_a11], %[a11] \n\t"
"replv.qb %[vector_a12], %[a12] \n\t"
: [vector_a11] "=&r"(vector_a11), [vector_a12] "=&r"(vector_a12)
: [a11] "r"(a11), [a12] "r"(a12));
for (r = 16; r--;) {
__asm__ __volatile__(
"lw %[t1], 0(%[dest]) \n\t"
"lw %[t2], 4(%[dest]) \n\t"
"lw %[t3], 8(%[dest]) \n\t"
"lw %[t4], 12(%[dest]) \n\t"
"addu_s.qb %[vector_1], %[t1], %[vector_a11] \n\t"
"addu_s.qb %[vector_2], %[t2], %[vector_a11] \n\t"
"addu_s.qb %[vector_3], %[t3], %[vector_a11] \n\t"
"addu_s.qb %[vector_4], %[t4], %[vector_a11] \n\t"
"addu_s.qb %[vector_1], %[vector_1], %[vector_a12] \n\t"
"addu_s.qb %[vector_2], %[vector_2], %[vector_a12] \n\t"
"addu_s.qb %[vector_3], %[vector_3], %[vector_a12] \n\t"
"addu_s.qb %[vector_4], %[vector_4], %[vector_a12] \n\t"
"sw %[vector_1], 0(%[dest]) \n\t"
"sw %[vector_2], 4(%[dest]) \n\t"
"sw %[vector_3], 8(%[dest]) \n\t"
"sw %[vector_4], 12(%[dest]) \n\t"
"add %[dest], %[dest], %[stride] \n\t"
: [t1] "=&r"(t1), [t2] "=&r"(t2), [t3] "=&r"(t3), [t4] "=&r"(t4),
[vector_1] "=&r"(vector_1), [vector_2] "=&r"(vector_2),
[vector_3] "=&r"(vector_3), [vector_4] "=&r"(vector_4),
[dest] "+&r"(dest)
: [stride] "r"(stride), [vector_a11] "r"(vector_a11),
[vector_a12] "r"(vector_a12));
}
} else {
/* use quad-byte
* input and output memory are four byte aligned */
__asm__ __volatile__("replv.qb %[vector_a1], %[a1] \n\t"
: [vector_a1] "=r"(vector_a1)
: [a1] "r"(a1));
for (r = 16; r--;) {
__asm__ __volatile__(
"lw %[t1], 0(%[dest]) \n\t"
"lw %[t2], 4(%[dest]) \n\t"
"lw %[t3], 8(%[dest]) \n\t"
"lw %[t4], 12(%[dest]) \n\t"
"addu_s.qb %[vector_1], %[t1], %[vector_a1] \n\t"
"addu_s.qb %[vector_2], %[t2], %[vector_a1] \n\t"
"addu_s.qb %[vector_3], %[t3], %[vector_a1] \n\t"
"addu_s.qb %[vector_4], %[t4], %[vector_a1] \n\t"
"sw %[vector_1], 0(%[dest]) \n\t"
"sw %[vector_2], 4(%[dest]) \n\t"
"sw %[vector_3], 8(%[dest]) \n\t"
"sw %[vector_4], 12(%[dest]) \n\t"
"add %[dest], %[dest], %[stride] \n\t"
: [t1] "=&r"(t1), [t2] "=&r"(t2), [t3] "=&r"(t3), [t4] "=&r"(t4),
[vector_1] "=&r"(vector_1), [vector_2] "=&r"(vector_2),
[vector_3] "=&r"(vector_3), [vector_4] "=&r"(vector_4),
[dest] "+&r"(dest)
: [stride] "r"(stride), [vector_a1] "r"(vector_a1));
}
}
}
void iadst16_dspr2(const int16_t *input, int16_t *output) {
int s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12, s13, s14, s15;
int x0 = input[15];
int x1 = input[0];
int x2 = input[13];
int x3 = input[2];
int x4 = input[11];
int x5 = input[4];
int x6 = input[9];
int x7 = input[6];
int x8 = input[7];
int x9 = input[8];
int x10 = input[5];
int x11 = input[10];
int x12 = input[3];
int x13 = input[12];
int x14 = input[1];
int x15 = input[14];
if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7 | x8 | x9 | x10 | x11 | x12 |
x13 | x14 | x15)) {
output[0] = output[1] = output[2] = output[3] = output[4] = output[5] =
output[6] = output[7] = output[8] = output[9] = output[10] =
output[11] = output[12] = output[13] = output[14] = output[15] = 0;
return;
}
// stage 1
s0 = x0 * cospi_1_64 + x1 * cospi_31_64;
s1 = x0 * cospi_31_64 - x1 * cospi_1_64;
s2 = x2 * cospi_5_64 + x3 * cospi_27_64;
s3 = x2 * cospi_27_64 - x3 * cospi_5_64;
s4 = x4 * cospi_9_64 + x5 * cospi_23_64;
s5 = x4 * cospi_23_64 - x5 * cospi_9_64;
s6 = x6 * cospi_13_64 + x7 * cospi_19_64;
s7 = x6 * cospi_19_64 - x7 * cospi_13_64;
s8 = x8 * cospi_17_64 + x9 * cospi_15_64;
s9 = x8 * cospi_15_64 - x9 * cospi_17_64;
s10 = x10 * cospi_21_64 + x11 * cospi_11_64;
s11 = x10 * cospi_11_64 - x11 * cospi_21_64;
s12 = x12 * cospi_25_64 + x13 * cospi_7_64;
s13 = x12 * cospi_7_64 - x13 * cospi_25_64;
s14 = x14 * cospi_29_64 + x15 * cospi_3_64;
s15 = x14 * cospi_3_64 - x15 * cospi_29_64;
x0 = dct_const_round_shift(s0 + s8);
x1 = dct_const_round_shift(s1 + s9);
x2 = dct_const_round_shift(s2 + s10);
x3 = dct_const_round_shift(s3 + s11);
x4 = dct_const_round_shift(s4 + s12);
x5 = dct_const_round_shift(s5 + s13);
x6 = dct_const_round_shift(s6 + s14);
x7 = dct_const_round_shift(s7 + s15);
x8 = dct_const_round_shift(s0 - s8);
x9 = dct_const_round_shift(s1 - s9);
x10 = dct_const_round_shift(s2 - s10);
x11 = dct_const_round_shift(s3 - s11);
x12 = dct_const_round_shift(s4 - s12);
x13 = dct_const_round_shift(s5 - s13);
x14 = dct_const_round_shift(s6 - s14);
x15 = dct_const_round_shift(s7 - s15);
// stage 2
s0 = x0;
s1 = x1;
s2 = x2;
s3 = x3;
s4 = x4;
s5 = x5;
s6 = x6;
s7 = x7;
s8 = x8 * cospi_4_64 + x9 * cospi_28_64;
s9 = x8 * cospi_28_64 - x9 * cospi_4_64;
s10 = x10 * cospi_20_64 + x11 * cospi_12_64;
s11 = x10 * cospi_12_64 - x11 * cospi_20_64;
s12 = -x12 * cospi_28_64 + x13 * cospi_4_64;
s13 = x12 * cospi_4_64 + x13 * cospi_28_64;
s14 = -x14 * cospi_12_64 + x15 * cospi_20_64;
s15 = x14 * cospi_20_64 + x15 * cospi_12_64;
x0 = s0 + s4;
x1 = s1 + s5;
x2 = s2 + s6;
x3 = s3 + s7;
x4 = s0 - s4;
x5 = s1 - s5;
x6 = s2 - s6;
x7 = s3 - s7;
x8 = dct_const_round_shift(s8 + s12);
x9 = dct_const_round_shift(s9 + s13);
x10 = dct_const_round_shift(s10 + s14);
x11 = dct_const_round_shift(s11 + s15);
x12 = dct_const_round_shift(s8 - s12);
x13 = dct_const_round_shift(s9 - s13);
x14 = dct_const_round_shift(s10 - s14);
x15 = dct_const_round_shift(s11 - s15);
// stage 3
s0 = x0;
s1 = x1;
s2 = x2;
s3 = x3;
s4 = x4 * cospi_8_64 + x5 * cospi_24_64;
s5 = x4 * cospi_24_64 - x5 * cospi_8_64;
s6 = -x6 * cospi_24_64 + x7 * cospi_8_64;
s7 = x6 * cospi_8_64 + x7 * cospi_24_64;
s8 = x8;
s9 = x9;
s10 = x10;
s11 = x11;
s12 = x12 * cospi_8_64 + x13 * cospi_24_64;
s13 = x12 * cospi_24_64 - x13 * cospi_8_64;
s14 = -x14 * cospi_24_64 + x15 * cospi_8_64;
s15 = x14 * cospi_8_64 + x15 * cospi_24_64;
x0 = s0 + s2;
x1 = s1 + s3;
x2 = s0 - s2;
x3 = s1 - s3;
x4 = dct_const_round_shift(s4 + s6);
x5 = dct_const_round_shift(s5 + s7);
x6 = dct_const_round_shift(s4 - s6);
x7 = dct_const_round_shift(s5 - s7);
x8 = s8 + s10;
x9 = s9 + s11;
x10 = s8 - s10;
x11 = s9 - s11;
x12 = dct_const_round_shift(s12 + s14);
x13 = dct_const_round_shift(s13 + s15);
x14 = dct_const_round_shift(s12 - s14);
x15 = dct_const_round_shift(s13 - s15);
// stage 4
s2 = (-cospi_16_64) * (x2 + x3);
s3 = cospi_16_64 * (x2 - x3);
s6 = cospi_16_64 * (x6 + x7);
s7 = cospi_16_64 * (-x6 + x7);
s10 = cospi_16_64 * (x10 + x11);
s11 = cospi_16_64 * (-x10 + x11);
s14 = (-cospi_16_64) * (x14 + x15);
s15 = cospi_16_64 * (x14 - x15);
x2 = dct_const_round_shift(s2);
x3 = dct_const_round_shift(s3);
x6 = dct_const_round_shift(s6);
x7 = dct_const_round_shift(s7);
x10 = dct_const_round_shift(s10);
x11 = dct_const_round_shift(s11);
x14 = dct_const_round_shift(s14);
x15 = dct_const_round_shift(s15);
output[0] = x0;
output[1] = -x8;
output[2] = x12;
output[3] = -x4;
output[4] = x6;
output[5] = x14;
output[6] = x10;
output[7] = x2;
output[8] = x3;
output[9] = x11;
output[10] = x15;
output[11] = x7;
output[12] = x5;
output[13] = -x13;
output[14] = x9;
output[15] = -x1;
}
#endif // HAVE_DSPR2