| /* |
| * 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 idct8_rows_dspr2(const int16_t *input, int16_t *output, uint32_t no_rows) { |
| int step1_0, step1_1, step1_2, step1_3, step1_4, step1_5, step1_6, step1_7; |
| const int const_2_power_13 = 8192; |
| int Temp0, Temp1, Temp2, Temp3, Temp4; |
| int i; |
| |
| for (i = no_rows; i--; ) { |
| __asm__ __volatile__ ( |
| /* |
| temp_1 = (input[0] + input[4]) * cospi_16_64; |
| step2_0 = dct_const_round_shift(temp_1); |
| |
| temp_2 = (input[0] - input[4]) * cospi_16_64; |
| step2_1 = dct_const_round_shift(temp_2); |
| */ |
| "lh %[Temp0], 0(%[input]) \n\t" |
| "lh %[Temp1], 8(%[input]) \n\t" |
| "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" |
| "add %[Temp2], %[Temp0], %[Temp1] \n\t" |
| "madd $ac0, %[Temp2], %[cospi_16_64] \n\t" |
| "extp %[Temp4], $ac0, 31 \n\t" |
| |
| "sub %[Temp3], %[Temp0], %[Temp1] \n\t" |
| "madd $ac1, %[Temp3], %[cospi_16_64] \n\t" |
| "mtlo %[const_2_power_13], $ac0 \n\t" |
| "mthi $zero, $ac0 \n\t" |
| "extp %[Temp2], $ac1, 31 \n\t" |
| |
| /* |
| temp_1 = input[2] * cospi_24_64 - input[6] * cospi_8_64; |
| step2_2 = dct_const_round_shift(temp_1); |
| */ |
| "lh %[Temp0], 4(%[input]) \n\t" |
| "lh %[Temp1], 12(%[input]) \n\t" |
| "madd $ac0, %[Temp0], %[cospi_24_64] \n\t" |
| "msub $ac0, %[Temp1], %[cospi_8_64] \n\t" |
| "mtlo %[const_2_power_13], $ac1 \n\t" |
| "mthi $zero, $ac1 \n\t" |
| "extp %[Temp3], $ac0, 31 \n\t" |
| |
| /* |
| step1_1 = step2_1 + step2_2; |
| step1_2 = step2_1 - step2_2; |
| */ |
| "add %[step1_1], %[Temp2], %[Temp3] \n\t" |
| "sub %[step1_2], %[Temp2], %[Temp3] \n\t" |
| |
| /* |
| temp_2 = input[2] * cospi_8_64 + input[6] * cospi_24_64; |
| step2_3 = dct_const_round_shift(temp_2); |
| */ |
| "madd $ac1, %[Temp0], %[cospi_8_64] \n\t" |
| "madd $ac1, %[Temp1], %[cospi_24_64] \n\t" |
| "extp %[Temp1], $ac1, 31 \n\t" |
| |
| "mtlo %[const_2_power_13], $ac0 \n\t" |
| "mthi $zero, $ac0 \n\t" |
| |
| /* |
| step1_0 = step2_0 + step2_3; |
| step1_3 = step2_0 - step2_3; |
| */ |
| "add %[step1_0], %[Temp4], %[Temp1] \n\t" |
| "sub %[step1_3], %[Temp4], %[Temp1] \n\t" |
| |
| /* |
| temp_1 = input[1] * cospi_28_64 - input[7] * cospi_4_64; |
| step1_4 = dct_const_round_shift(temp_1); |
| */ |
| "lh %[Temp0], 2(%[input]) \n\t" |
| "madd $ac0, %[Temp0], %[cospi_28_64] \n\t" |
| "mtlo %[const_2_power_13], $ac1 \n\t" |
| "mthi $zero, $ac1 \n\t" |
| "lh %[Temp1], 14(%[input]) \n\t" |
| "lh %[Temp0], 2(%[input]) \n\t" |
| "msub $ac0, %[Temp1], %[cospi_4_64] \n\t" |
| "extp %[step1_4], $ac0, 31 \n\t" |
| |
| /* |
| temp_2 = input[1] * cospi_4_64 + input[7] * cospi_28_64; |
| step1_7 = dct_const_round_shift(temp_2); |
| */ |
| "madd $ac1, %[Temp0], %[cospi_4_64] \n\t" |
| "madd $ac1, %[Temp1], %[cospi_28_64] \n\t" |
| "extp %[step1_7], $ac1, 31 \n\t" |
| |
| /* |
| temp_1 = input[5] * cospi_12_64 - input[3] * cospi_20_64; |
| step1_5 = dct_const_round_shift(temp_1); |
| */ |
| "mtlo %[const_2_power_13], $ac0 \n\t" |
| "mthi $zero, $ac0 \n\t" |
| "lh %[Temp0], 10(%[input]) \n\t" |
| "madd $ac0, %[Temp0], %[cospi_12_64] \n\t" |
| "lh %[Temp1], 6(%[input]) \n\t" |
| "msub $ac0, %[Temp1], %[cospi_20_64] \n\t" |
| "extp %[step1_5], $ac0, 31 \n\t" |
| |
| /* |
| temp_2 = input[5] * cospi_20_64 + input[3] * cospi_12_64; |
| step1_6 = dct_const_round_shift(temp_2); |
| */ |
| "mtlo %[const_2_power_13], $ac1 \n\t" |
| "mthi $zero, $ac1 \n\t" |
| "lh %[Temp0], 10(%[input]) \n\t" |
| "madd $ac1, %[Temp0], %[cospi_20_64] \n\t" |
| "lh %[Temp1], 6(%[input]) \n\t" |
| "madd $ac1, %[Temp1], %[cospi_12_64] \n\t" |
| "extp %[step1_6], $ac1, 31 \n\t" |
| |
| /* |
| temp_1 = (step1_7 - step1_6 - step1_4 + step1_5) * cospi_16_64; |
| temp_2 = (step1_4 - step1_5 - step1_6 + step1_7) * cospi_16_64; |
| */ |
| "sub %[Temp0], %[step1_7], %[step1_6] \n\t" |
| "sub %[Temp0], %[Temp0], %[step1_4] \n\t" |
| "add %[Temp0], %[Temp0], %[step1_5] \n\t" |
| "sub %[Temp1], %[step1_4], %[step1_5] \n\t" |
| "sub %[Temp1], %[Temp1], %[step1_6] \n\t" |
| "add %[Temp1], %[Temp1], %[step1_7] \n\t" |
| |
| "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" |
| |
| "madd $ac0, %[Temp0], %[cospi_16_64] \n\t" |
| "madd $ac1, %[Temp1], %[cospi_16_64] \n\t" |
| |
| /* |
| step1_4 = step1_4 + step1_5; |
| step1_7 = step1_6 + step1_7; |
| */ |
| "add %[step1_4], %[step1_4], %[step1_5] \n\t" |
| "add %[step1_7], %[step1_7], %[step1_6] \n\t" |
| |
| "extp %[step1_5], $ac0, 31 \n\t" |
| "extp %[step1_6], $ac1, 31 \n\t" |
| |
| "add %[Temp0], %[step1_0], %[step1_7] \n\t" |
| "sh %[Temp0], 0(%[output]) \n\t" |
| "add %[Temp1], %[step1_1], %[step1_6] \n\t" |
| "sh %[Temp1], 16(%[output]) \n\t" |
| "add %[Temp0], %[step1_2], %[step1_5] \n\t" |
| "sh %[Temp0], 32(%[output]) \n\t" |
| "add %[Temp1], %[step1_3], %[step1_4] \n\t" |
| "sh %[Temp1], 48(%[output]) \n\t" |
| |
| "sub %[Temp0], %[step1_3], %[step1_4] \n\t" |
| "sh %[Temp0], 64(%[output]) \n\t" |
| "sub %[Temp1], %[step1_2], %[step1_5] \n\t" |
| "sh %[Temp1], 80(%[output]) \n\t" |
| "sub %[Temp0], %[step1_1], %[step1_6] \n\t" |
| "sh %[Temp0], 96(%[output]) \n\t" |
| "sub %[Temp1], %[step1_0], %[step1_7] \n\t" |
| "sh %[Temp1], 112(%[output]) \n\t" |
| |
| : [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), |
| [Temp0] "=&r" (Temp0), [Temp1] "=&r" (Temp1), |
| [Temp2] "=&r" (Temp2), [Temp3] "=&r" (Temp3), |
| [Temp4] "=&r" (Temp4) |
| : [const_2_power_13] "r" (const_2_power_13), |
| [cospi_16_64] "r" (cospi_16_64), [cospi_28_64] "r" (cospi_28_64), |
| [cospi_4_64] "r" (cospi_4_64), [cospi_12_64] "r" (cospi_12_64), |
| [cospi_20_64] "r" (cospi_20_64), [cospi_8_64] "r" (cospi_8_64), |
| [cospi_24_64] "r" (cospi_24_64), |
| [output] "r" (output), [input] "r" (input) |
| ); |
| |
| input += 8; |
| output += 1; |
| } |
| } |
| |
| void idct8_columns_add_blk_dspr2(int16_t *input, uint8_t *dest, |
| int dest_stride) { |
| int step1_0, step1_1, step1_2, step1_3, step1_4, step1_5, step1_6, step1_7; |
| int Temp0, Temp1, Temp2, Temp3; |
| int i; |
| 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 < 8; ++i) { |
| dest_pix = (dest + i); |
| |
| __asm__ __volatile__ ( |
| /* |
| temp_1 = (input[0] + input[4]) * cospi_16_64; |
| step2_0 = dct_const_round_shift(temp_1); |
| |
| temp_2 = (input[0] - input[4]) * cospi_16_64; |
| step2_1 = dct_const_round_shift(temp_2); |
| */ |
| "lh %[Temp0], 0(%[input]) \n\t" |
| "lh %[Temp1], 8(%[input]) \n\t" |
| "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" |
| "add %[Temp2], %[Temp0], %[Temp1] \n\t" |
| "madd $ac0, %[Temp2], %[cospi_16_64] \n\t" |
| "extp %[step1_6], $ac0, 31 \n\t" |
| |
| "sub %[Temp3], %[Temp0], %[Temp1] \n\t" |
| "madd $ac1, %[Temp3], %[cospi_16_64] \n\t" |
| "mtlo %[const_2_power_13], $ac0 \n\t" |
| "mthi $zero, $ac0 \n\t" |
| "extp %[Temp2], $ac1, 31 \n\t" |
| |
| /* |
| temp_1 = input[2] * cospi_24_64 - input[6] * cospi_8_64; |
| step2_2 = dct_const_round_shift(temp_1); |
| */ |
| "lh %[Temp0], 4(%[input]) \n\t" |
| "lh %[Temp1], 12(%[input]) \n\t" |
| "madd $ac0, %[Temp0], %[cospi_24_64] \n\t" |
| "msub $ac0, %[Temp1], %[cospi_8_64] \n\t" |
| "mtlo %[const_2_power_13], $ac1 \n\t" |
| "mthi $zero, $ac1 \n\t" |
| "extp %[Temp3], $ac0, 31 \n\t" |
| |
| /* |
| step1_1 = step2_1 + step2_2; |
| step1_2 = step2_1 - step2_2; |
| */ |
| "add %[step1_1], %[Temp2], %[Temp3] \n\t" |
| "sub %[step1_2], %[Temp2], %[Temp3] \n\t" |
| |
| /* |
| temp_2 = input[2] * cospi_8_64 + input[6] * cospi_24_64; |
| step2_3 = dct_const_round_shift(temp_2); |
| */ |
| "madd $ac1, %[Temp0], %[cospi_8_64] \n\t" |
| "madd $ac1, %[Temp1], %[cospi_24_64] \n\t" |
| "extp %[Temp1], $ac1, 31 \n\t" |
| |
| "mtlo %[const_2_power_13], $ac0 \n\t" |
| "mthi $zero, $ac0 \n\t" |
| |
| /* |
| step1_0 = step2_0 + step2_3; |
| step1_3 = step2_0 - step2_3; |
| */ |
| "add %[step1_0], %[step1_6], %[Temp1] \n\t" |
| "sub %[step1_3], %[step1_6], %[Temp1] \n\t" |
| |
| /* |
| temp_1 = input[1] * cospi_28_64 - input[7] * cospi_4_64; |
| step1_4 = dct_const_round_shift(temp_1); |
| */ |
| "lh %[Temp0], 2(%[input]) \n\t" |
| "madd $ac0, %[Temp0], %[cospi_28_64] \n\t" |
| "mtlo %[const_2_power_13], $ac1 \n\t" |
| "mthi $zero, $ac1 \n\t" |
| "lh %[Temp1], 14(%[input]) \n\t" |
| "lh %[Temp0], 2(%[input]) \n\t" |
| "msub $ac0, %[Temp1], %[cospi_4_64] \n\t" |
| "extp %[step1_4], $ac0, 31 \n\t" |
| |
| /* |
| temp_2 = input[1] * cospi_4_64 + input[7] * cospi_28_64; |
| step1_7 = dct_const_round_shift(temp_2); |
| */ |
| "madd $ac1, %[Temp0], %[cospi_4_64] \n\t" |
| "madd $ac1, %[Temp1], %[cospi_28_64] \n\t" |
| "extp %[step1_7], $ac1, 31 \n\t" |
| |
| /* |
| temp_1 = input[5] * cospi_12_64 - input[3] * cospi_20_64; |
| step1_5 = dct_const_round_shift(temp_1); |
| */ |
| "mtlo %[const_2_power_13], $ac0 \n\t" |
| "mthi $zero, $ac0 \n\t" |
| "lh %[Temp0], 10(%[input]) \n\t" |
| "madd $ac0, %[Temp0], %[cospi_12_64] \n\t" |
| "lh %[Temp1], 6(%[input]) \n\t" |
| "msub $ac0, %[Temp1], %[cospi_20_64] \n\t" |
| "extp %[step1_5], $ac0, 31 \n\t" |
| |
| /* |
| temp_2 = input[5] * cospi_20_64 + input[3] * cospi_12_64; |
| step1_6 = dct_const_round_shift(temp_2); |
| */ |
| "mtlo %[const_2_power_13], $ac1 \n\t" |
| "mthi $zero, $ac1 \n\t" |
| "lh %[Temp0], 10(%[input]) \n\t" |
| "madd $ac1, %[Temp0], %[cospi_20_64] \n\t" |
| "lh %[Temp1], 6(%[input]) \n\t" |
| "madd $ac1, %[Temp1], %[cospi_12_64] \n\t" |
| "extp %[step1_6], $ac1, 31 \n\t" |
| |
| /* |
| temp_1 = (step1_7 - step1_6 - step1_4 + step1_5) * cospi_16_64; |
| temp_2 = (step1_4 - step1_5 - step1_6 + step1_7) * cospi_16_64; |
| */ |
| "sub %[Temp0], %[step1_7], %[step1_6] \n\t" |
| "sub %[Temp0], %[Temp0], %[step1_4] \n\t" |
| "add %[Temp0], %[Temp0], %[step1_5] \n\t" |
| "sub %[Temp1], %[step1_4], %[step1_5] \n\t" |
| "sub %[Temp1], %[Temp1], %[step1_6] \n\t" |
| "add %[Temp1], %[Temp1], %[step1_7] \n\t" |
| |
| "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" |
| |
| "madd $ac0, %[Temp0], %[cospi_16_64] \n\t" |
| "madd $ac1, %[Temp1], %[cospi_16_64] \n\t" |
| |
| /* |
| step1_4 = step1_4 + step1_5; |
| step1_7 = step1_6 + step1_7; |
| */ |
| "add %[step1_4], %[step1_4], %[step1_5] \n\t" |
| "add %[step1_7], %[step1_7], %[step1_6] \n\t" |
| |
| "extp %[step1_5], $ac0, 31 \n\t" |
| "extp %[step1_6], $ac1, 31 \n\t" |
| |
| /* add block */ |
| "lbu %[Temp1], 0(%[dest_pix]) \n\t" |
| "add %[Temp0], %[step1_0], %[step1_7] \n\t" |
| "addi %[Temp0], %[Temp0], 16 \n\t" |
| "sra %[Temp0], %[Temp0], 5 \n\t" |
| "add %[Temp1], %[Temp1], %[Temp0] \n\t" |
| "add %[Temp0], %[step1_1], %[step1_6] \n\t" |
| "lbux %[Temp2], %[Temp1](%[cm]) \n\t" |
| "sb %[Temp2], 0(%[dest_pix]) \n\t" |
| "addu %[dest_pix], %[dest_pix], %[dest_stride] \n\t" |
| |
| "lbu %[Temp1], 0(%[dest_pix]) \n\t" |
| "addi %[Temp0], %[Temp0], 16 \n\t" |
| "sra %[Temp0], %[Temp0], 5 \n\t" |
| "add %[Temp1], %[Temp1], %[Temp0] \n\t" |
| "add %[Temp0], %[step1_2], %[step1_5] \n\t" |
| "lbux %[Temp2], %[Temp1](%[cm]) \n\t" |
| "sb %[Temp2], 0(%[dest_pix]) \n\t" |
| "addu %[dest_pix], %[dest_pix], %[dest_stride] \n\t" |
| |
| "lbu %[Temp1], 0(%[dest_pix]) \n\t" |
| "addi %[Temp0], %[Temp0], 16 \n\t" |
| "sra %[Temp0], %[Temp0], 5 \n\t" |
| "add %[Temp1], %[Temp1], %[Temp0] \n\t" |
| "add %[Temp0], %[step1_3], %[step1_4] \n\t" |
| "lbux %[Temp2], %[Temp1](%[cm]) \n\t" |
| "sb %[Temp2], 0(%[dest_pix]) \n\t" |
| "addu %[dest_pix], %[dest_pix], %[dest_stride] \n\t" |
| |
| "lbu %[Temp1], 0(%[dest_pix]) \n\t" |
| "addi %[Temp0], %[Temp0], 16 \n\t" |
| "sra %[Temp0], %[Temp0], 5 \n\t" |
| "add %[Temp1], %[Temp1], %[Temp0] \n\t" |
| "sub %[Temp0], %[step1_3], %[step1_4] \n\t" |
| "lbux %[Temp2], %[Temp1](%[cm]) \n\t" |
| "sb %[Temp2], 0(%[dest_pix]) \n\t" |
| "addu %[dest_pix], %[dest_pix], %[dest_stride] \n\t" |
| |
| "lbu %[Temp1], 0(%[dest_pix]) \n\t" |
| "addi %[Temp0], %[Temp0], 16 \n\t" |
| "sra %[Temp0], %[Temp0], 5 \n\t" |
| "add %[Temp1], %[Temp1], %[Temp0] \n\t" |
| "sub %[Temp0], %[step1_2], %[step1_5] \n\t" |
| "lbux %[Temp2], %[Temp1](%[cm]) \n\t" |
| "sb %[Temp2], 0(%[dest_pix]) \n\t" |
| "addu %[dest_pix], %[dest_pix], %[dest_stride] \n\t" |
| |
| "lbu %[Temp1], 0(%[dest_pix]) \n\t" |
| "addi %[Temp0], %[Temp0], 16 \n\t" |
| "sra %[Temp0], %[Temp0], 5 \n\t" |
| "add %[Temp1], %[Temp1], %[Temp0] \n\t" |
| "sub %[Temp0], %[step1_1], %[step1_6] \n\t" |
| "lbux %[Temp2], %[Temp1](%[cm]) \n\t" |
| "sb %[Temp2], 0(%[dest_pix]) \n\t" |
| "addu %[dest_pix], %[dest_pix], %[dest_stride] \n\t" |
| |
| "lbu %[Temp1], 0(%[dest_pix]) \n\t" |
| "addi %[Temp0], %[Temp0], 16 \n\t" |
| "sra %[Temp0], %[Temp0], 5 \n\t" |
| "add %[Temp1], %[Temp1], %[Temp0] \n\t" |
| "sub %[Temp0], %[step1_0], %[step1_7] \n\t" |
| "lbux %[Temp2], %[Temp1](%[cm]) \n\t" |
| "sb %[Temp2], 0(%[dest_pix]) \n\t" |
| "addu %[dest_pix], %[dest_pix], %[dest_stride] \n\t" |
| |
| "lbu %[Temp1], 0(%[dest_pix]) \n\t" |
| "addi %[Temp0], %[Temp0], 16 \n\t" |
| "sra %[Temp0], %[Temp0], 5 \n\t" |
| "add %[Temp1], %[Temp1], %[Temp0] \n\t" |
| "lbux %[Temp2], %[Temp1](%[cm]) \n\t" |
| "sb %[Temp2], 0(%[dest_pix]) \n\t" |
| |
| : [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), |
| [Temp0] "=&r" (Temp0), [Temp1] "=&r" (Temp1), |
| [Temp2] "=&r" (Temp2), [Temp3] "=&r" (Temp3), |
| [dest_pix] "+r" (dest_pix) |
| : [const_2_power_13] "r" (const_2_power_13), |
| [cospi_16_64] "r" (cospi_16_64), [cospi_28_64] "r" (cospi_28_64), |
| [cospi_4_64] "r" (cospi_4_64), [cospi_12_64] "r" (cospi_12_64), |
| [cospi_20_64] "r" (cospi_20_64), [cospi_8_64] "r" (cospi_8_64), |
| [cospi_24_64] "r" (cospi_24_64), |
| [input] "r" (input), [cm] "r" (cm), [dest_stride] "r" (dest_stride) |
| ); |
| |
| input += 8; |
| } |
| } |
| |
| void vpx_idct8x8_64_add_dspr2(const int16_t *input, uint8_t *dest, |
| int dest_stride) { |
| DECLARE_ALIGNED(32, int16_t, out[8 * 8]); |
| int16_t *outptr = out; |
| uint32_t pos = 45; |
| |
| /* bit positon for extract from acc */ |
| __asm__ __volatile__ ( |
| "wrdsp %[pos], 1 \n\t" |
| : |
| : [pos] "r" (pos) |
| ); |
| |
| // First transform rows |
| idct8_rows_dspr2(input, outptr, 8); |
| |
| // Then transform columns and add to dest |
| idct8_columns_add_blk_dspr2(&out[0], dest, dest_stride); |
| } |
| |
| void vpx_idct8x8_12_add_dspr2(const int16_t *input, uint8_t *dest, |
| int dest_stride) { |
| DECLARE_ALIGNED(32, int16_t, out[8 * 8]); |
| int16_t *outptr = out; |
| uint32_t pos = 45; |
| |
| /* bit positon for extract from acc */ |
| __asm__ __volatile__ ( |
| "wrdsp %[pos], 1 \n\t" |
| : |
| : [pos] "r" (pos) |
| ); |
| |
| // First transform rows |
| idct8_rows_dspr2(input, outptr, 4); |
| |
| outptr += 4; |
| |
| __asm__ __volatile__ ( |
| "sw $zero, 0(%[outptr]) \n\t" |
| "sw $zero, 4(%[outptr]) \n\t" |
| "sw $zero, 16(%[outptr]) \n\t" |
| "sw $zero, 20(%[outptr]) \n\t" |
| "sw $zero, 32(%[outptr]) \n\t" |
| "sw $zero, 36(%[outptr]) \n\t" |
| "sw $zero, 48(%[outptr]) \n\t" |
| "sw $zero, 52(%[outptr]) \n\t" |
| "sw $zero, 64(%[outptr]) \n\t" |
| "sw $zero, 68(%[outptr]) \n\t" |
| "sw $zero, 80(%[outptr]) \n\t" |
| "sw $zero, 84(%[outptr]) \n\t" |
| "sw $zero, 96(%[outptr]) \n\t" |
| "sw $zero, 100(%[outptr]) \n\t" |
| "sw $zero, 112(%[outptr]) \n\t" |
| "sw $zero, 116(%[outptr]) \n\t" |
| |
| : |
| : [outptr] "r" (outptr) |
| ); |
| |
| |
| // Then transform columns and add to dest |
| idct8_columns_add_blk_dspr2(&out[0], dest, dest_stride); |
| } |
| |
| void vpx_idct8x8_1_add_dspr2(const int16_t *input, uint8_t *dest, |
| int dest_stride) { |
| uint32_t pos = 45; |
| int32_t out; |
| int32_t r; |
| int32_t a1, absa1; |
| int32_t t1, t2, vector_a1, vector_1, vector_2; |
| |
| /* 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], 16 \n\t" |
| "sra %[a1], %[out], 5 \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 = 8; r--;) { |
| __asm__ __volatile__ ( |
| "lw %[t1], 0(%[dest]) \n\t" |
| "lw %[t2], 4(%[dest]) \n\t" |
| "subu_s.qb %[vector_1], %[t1], %[vector_a1] \n\t" |
| "subu_s.qb %[vector_2], %[t2], %[vector_a1] \n\t" |
| "sw %[vector_1], 0(%[dest]) \n\t" |
| "sw %[vector_2], 4(%[dest]) \n\t" |
| "add %[dest], %[dest], %[dest_stride] \n\t" |
| |
| : [t1] "=&r" (t1), [t2] "=&r" (t2), |
| [vector_1] "=&r" (vector_1), [vector_2] "=&r" (vector_2), |
| [dest] "+&r" (dest) |
| : [dest_stride] "r" (dest_stride), [vector_a1] "r" (vector_a1) |
| ); |
| } |
| } 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 = 8; r--;) { |
| __asm__ __volatile__ ( |
| "lw %[t1], 0(%[dest]) \n\t" |
| "lw %[t2], 4(%[dest]) \n\t" |
| "addu_s.qb %[vector_1], %[t1], %[vector_a1] \n\t" |
| "addu_s.qb %[vector_2], %[t2], %[vector_a1] \n\t" |
| "sw %[vector_1], 0(%[dest]) \n\t" |
| "sw %[vector_2], 4(%[dest]) \n\t" |
| "add %[dest], %[dest], %[dest_stride] \n\t" |
| |
| : [t1] "=&r" (t1), [t2] "=&r" (t2), |
| [vector_1] "=&r" (vector_1), [vector_2] "=&r" (vector_2), |
| [dest] "+r" (dest) |
| : [dest_stride] "r" (dest_stride), [vector_a1] "r" (vector_a1) |
| ); |
| } |
| } |
| } |
| |
| void iadst8_dspr2(const int16_t *input, int16_t *output) { |
| int s0, s1, s2, s3, s4, s5, s6, s7; |
| int x0, x1, x2, x3, x4, x5, x6, x7; |
| |
| x0 = input[7]; |
| x1 = input[0]; |
| x2 = input[5]; |
| x3 = input[2]; |
| x4 = input[3]; |
| x5 = input[4]; |
| x6 = input[1]; |
| x7 = input[6]; |
| |
| if (!(x0 | x1 | x2 | x3 | x4 | x5 | x6 | x7)) { |
| output[0] = output[1] = output[2] = output[3] = output[4] |
| = output[5] = output[6] = output[7] = 0; |
| return; |
| } |
| |
| // stage 1 |
| s0 = cospi_2_64 * x0 + cospi_30_64 * x1; |
| s1 = cospi_30_64 * x0 - cospi_2_64 * x1; |
| s2 = cospi_10_64 * x2 + cospi_22_64 * x3; |
| s3 = cospi_22_64 * x2 - cospi_10_64 * x3; |
| s4 = cospi_18_64 * x4 + cospi_14_64 * x5; |
| s5 = cospi_14_64 * x4 - cospi_18_64 * x5; |
| s6 = cospi_26_64 * x6 + cospi_6_64 * x7; |
| s7 = cospi_6_64 * x6 - cospi_26_64 * x7; |
| |
| x0 = ROUND_POWER_OF_TWO((s0 + s4), DCT_CONST_BITS); |
| x1 = ROUND_POWER_OF_TWO((s1 + s5), DCT_CONST_BITS); |
| x2 = ROUND_POWER_OF_TWO((s2 + s6), DCT_CONST_BITS); |
| x3 = ROUND_POWER_OF_TWO((s3 + s7), DCT_CONST_BITS); |
| x4 = ROUND_POWER_OF_TWO((s0 - s4), DCT_CONST_BITS); |
| x5 = ROUND_POWER_OF_TWO((s1 - s5), DCT_CONST_BITS); |
| x6 = ROUND_POWER_OF_TWO((s2 - s6), DCT_CONST_BITS); |
| x7 = ROUND_POWER_OF_TWO((s3 - s7), DCT_CONST_BITS); |
| |
| // stage 2 |
| s0 = x0; |
| s1 = x1; |
| s2 = x2; |
| s3 = x3; |
| s4 = cospi_8_64 * x4 + cospi_24_64 * x5; |
| s5 = cospi_24_64 * x4 - cospi_8_64 * x5; |
| s6 = -cospi_24_64 * x6 + cospi_8_64 * x7; |
| s7 = cospi_8_64 * x6 + cospi_24_64 * x7; |
| |
| x0 = s0 + s2; |
| x1 = s1 + s3; |
| x2 = s0 - s2; |
| x3 = s1 - s3; |
| x4 = ROUND_POWER_OF_TWO((s4 + s6), DCT_CONST_BITS); |
| x5 = ROUND_POWER_OF_TWO((s5 + s7), DCT_CONST_BITS); |
| x6 = ROUND_POWER_OF_TWO((s4 - s6), DCT_CONST_BITS); |
| x7 = ROUND_POWER_OF_TWO((s5 - s7), DCT_CONST_BITS); |
| |
| // stage 3 |
| s2 = cospi_16_64 * (x2 + x3); |
| s3 = cospi_16_64 * (x2 - x3); |
| s6 = cospi_16_64 * (x6 + x7); |
| s7 = cospi_16_64 * (x6 - x7); |
| |
| x2 = ROUND_POWER_OF_TWO((s2), DCT_CONST_BITS); |
| x3 = ROUND_POWER_OF_TWO((s3), DCT_CONST_BITS); |
| x6 = ROUND_POWER_OF_TWO((s6), DCT_CONST_BITS); |
| x7 = ROUND_POWER_OF_TWO((s7), DCT_CONST_BITS); |
| |
| output[0] = x0; |
| output[1] = -x4; |
| output[2] = x6; |
| output[3] = -x2; |
| output[4] = x3; |
| output[5] = -x7; |
| output[6] = x5; |
| output[7] = -x1; |
| } |
| #endif // HAVE_DSPR2 |
