summaryrefslogtreecommitdiff
path: root/ffmpeg1/libavcodec/mips/ac3dsp_mips.c
diff options
context:
space:
mode:
Diffstat (limited to 'ffmpeg1/libavcodec/mips/ac3dsp_mips.c')
-rw-r--r--ffmpeg1/libavcodec/mips/ac3dsp_mips.c412
1 files changed, 0 insertions, 412 deletions
diff --git a/ffmpeg1/libavcodec/mips/ac3dsp_mips.c b/ffmpeg1/libavcodec/mips/ac3dsp_mips.c
deleted file mode 100644
index f33c6f1..0000000
--- a/ffmpeg1/libavcodec/mips/ac3dsp_mips.c
+++ /dev/null
@@ -1,412 +0,0 @@
-/*
- * Copyright (c) 2012
- * MIPS Technologies, Inc., California.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * Authors: Branimir Vasic (bvasic@mips.com)
- * Nedeljko Babic (nbabic@mips.com)
- *
- * Various AC-3 DSP Utils optimized for MIPS
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg 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.
- *
- * FFmpeg 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * Reference: libavcodec/ac3dsp.c
- */
-
-#include "config.h"
-#include "libavcodec/ac3dsp.h"
-#include "libavcodec/ac3.h"
-
-
-#if HAVE_INLINE_ASM
-#if HAVE_MIPSDSPR1
-static void ac3_bit_alloc_calc_bap_mips(int16_t *mask, int16_t *psd,
- int start, int end,
- int snr_offset, int floor,
- const uint8_t *bap_tab, uint8_t *bap)
-{
- int band, band_end, cond;
- int m, address1, address2;
- int16_t *psd1, *psd_end;
- uint8_t *bap1;
-
- if (snr_offset == -960) {
- memset(bap, 0, AC3_MAX_COEFS);
- return;
- }
-
- psd1 = &psd[start];
- bap1 = &bap[start];
- band = ff_ac3_bin_to_band_tab[start];
-
- do {
- m = (FFMAX(mask[band] - snr_offset - floor, 0) & 0x1FE0) + floor;
- band_end = ff_ac3_band_start_tab[++band];
- band_end = FFMIN(band_end, end);
- psd_end = psd + band_end - 1;
-
- __asm__ volatile (
- "slt %[cond], %[psd1], %[psd_end] \n\t"
- "beqz %[cond], 1f \n\t"
- "2: \n\t"
- "lh %[address1], 0(%[psd1]) \n\t"
- "lh %[address2], 2(%[psd1]) \n\t"
- "addiu %[psd1], %[psd1], 4 \n\t"
- "subu %[address1], %[address1], %[m] \n\t"
- "sra %[address1], %[address1], 5 \n\t"
- "addiu %[address1], %[address1], -32 \n\t"
- "shll_s.w %[address1], %[address1], 26 \n\t"
- "subu %[address2], %[address2], %[m] \n\t"
- "sra %[address2], %[address2], 5 \n\t"
- "sra %[address1], %[address1], 26 \n\t"
- "addiu %[address1], %[address1], 32 \n\t"
- "lbux %[address1], %[address1](%[bap_tab]) \n\t"
- "addiu %[address2], %[address2], -32 \n\t"
- "shll_s.w %[address2], %[address2], 26 \n\t"
- "sb %[address1], 0(%[bap1]) \n\t"
- "slt %[cond], %[psd1], %[psd_end] \n\t"
- "sra %[address2], %[address2], 26 \n\t"
- "addiu %[address2], %[address2], 32 \n\t"
- "lbux %[address2], %[address2](%[bap_tab]) \n\t"
- "sb %[address2], 1(%[bap1]) \n\t"
- "addiu %[bap1], %[bap1], 2 \n\t"
- "bnez %[cond], 2b \n\t"
- "addiu %[psd_end], %[psd_end], 2 \n\t"
- "slt %[cond], %[psd1], %[psd_end] \n\t"
- "beqz %[cond], 3f \n\t"
- "1: \n\t"
- "lh %[address1], 0(%[psd1]) \n\t"
- "addiu %[psd1], %[psd1], 2 \n\t"
- "subu %[address1], %[address1], %[m] \n\t"
- "sra %[address1], %[address1], 5 \n\t"
- "addiu %[address1], %[address1], -32 \n\t"
- "shll_s.w %[address1], %[address1], 26 \n\t"
- "sra %[address1], %[address1], 26 \n\t"
- "addiu %[address1], %[address1], 32 \n\t"
- "lbux %[address1], %[address1](%[bap_tab]) \n\t"
- "sb %[address1], 0(%[bap1]) \n\t"
- "addiu %[bap1], %[bap1], 1 \n\t"
- "3: \n\t"
-
- : [address1]"=&r"(address1), [address2]"=&r"(address2),
- [cond]"=&r"(cond), [bap1]"+r"(bap1),
- [psd1]"+r"(psd1), [psd_end]"+r"(psd_end)
- : [m]"r"(m), [bap_tab]"r"(bap_tab)
- : "memory"
- );
- } while (end > band_end);
-}
-
-static void ac3_update_bap_counts_mips(uint16_t mant_cnt[16], uint8_t *bap,
- int len)
-{
- int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7;
-
- __asm__ volatile (
- "andi %[temp3], %[len], 3 \n\t"
- "addu %[temp2], %[bap], %[len] \n\t"
- "addu %[temp4], %[bap], %[temp3] \n\t"
- "beq %[temp2], %[temp4], 4f \n\t"
- "1: \n\t"
- "lbu %[temp0], -1(%[temp2]) \n\t"
- "lbu %[temp5], -2(%[temp2]) \n\t"
- "lbu %[temp6], -3(%[temp2]) \n\t"
- "sll %[temp0], %[temp0], 1 \n\t"
- "addu %[temp0], %[mant_cnt], %[temp0] \n\t"
- "sll %[temp5], %[temp5], 1 \n\t"
- "addu %[temp5], %[mant_cnt], %[temp5] \n\t"
- "lhu %[temp1], 0(%[temp0]) \n\t"
- "sll %[temp6], %[temp6], 1 \n\t"
- "addu %[temp6], %[mant_cnt], %[temp6] \n\t"
- "addiu %[temp1], %[temp1], 1 \n\t"
- "sh %[temp1], 0(%[temp0]) \n\t"
- "lhu %[temp1], 0(%[temp5]) \n\t"
- "lbu %[temp7], -4(%[temp2]) \n\t"
- "addiu %[temp2], %[temp2], -4 \n\t"
- "addiu %[temp1], %[temp1], 1 \n\t"
- "sh %[temp1], 0(%[temp5]) \n\t"
- "lhu %[temp1], 0(%[temp6]) \n\t"
- "sll %[temp7], %[temp7], 1 \n\t"
- "addu %[temp7], %[mant_cnt], %[temp7] \n\t"
- "addiu %[temp1], %[temp1],1 \n\t"
- "sh %[temp1], 0(%[temp6]) \n\t"
- "lhu %[temp1], 0(%[temp7]) \n\t"
- "addiu %[temp1], %[temp1], 1 \n\t"
- "sh %[temp1], 0(%[temp7]) \n\t"
- "bne %[temp2], %[temp4], 1b \n\t"
- "4: \n\t"
- "beqz %[temp3], 2f \n\t"
- "3: \n\t"
- "addiu %[temp3], %[temp3], -1 \n\t"
- "lbu %[temp0], -1(%[temp2]) \n\t"
- "addiu %[temp2], %[temp2], -1 \n\t"
- "sll %[temp0], %[temp0], 1 \n\t"
- "addu %[temp0], %[mant_cnt], %[temp0] \n\t"
- "lhu %[temp1], 0(%[temp0]) \n\t"
- "addiu %[temp1], %[temp1], 1 \n\t"
- "sh %[temp1], 0(%[temp0]) \n\t"
- "bgtz %[temp3], 3b \n\t"
- "2: \n\t"
-
- : [temp0] "=&r" (temp0), [temp1] "=&r" (temp1),
- [temp2] "=&r" (temp2), [temp3] "=&r" (temp3),
- [temp4] "=&r" (temp4), [temp5] "=&r" (temp5),
- [temp6] "=&r" (temp6), [temp7] "=&r" (temp7)
- : [len] "r" (len), [bap] "r" (bap),
- [mant_cnt] "r" (mant_cnt)
- : "memory"
- );
-}
-#endif
-
-#if HAVE_MIPSFPU && HAVE_MIPS32R2
-static void float_to_fixed24_mips(int32_t *dst, const float *src, unsigned int len)
-{
- const float scale = 1 << 24;
- float src0, src1, src2, src3, src4, src5, src6, src7;
- int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7;
-
- do {
- __asm__ volatile (
- "lwc1 %[src0], 0(%[src]) \n\t"
- "lwc1 %[src1], 4(%[src]) \n\t"
- "lwc1 %[src2], 8(%[src]) \n\t"
- "lwc1 %[src3], 12(%[src]) \n\t"
- "lwc1 %[src4], 16(%[src]) \n\t"
- "lwc1 %[src5], 20(%[src]) \n\t"
- "lwc1 %[src6], 24(%[src]) \n\t"
- "lwc1 %[src7], 28(%[src]) \n\t"
- "mul.s %[src0], %[src0], %[scale] \n\t"
- "mul.s %[src1], %[src1], %[scale] \n\t"
- "mul.s %[src2], %[src2], %[scale] \n\t"
- "mul.s %[src3], %[src3], %[scale] \n\t"
- "mul.s %[src4], %[src4], %[scale] \n\t"
- "mul.s %[src5], %[src5], %[scale] \n\t"
- "mul.s %[src6], %[src6], %[scale] \n\t"
- "mul.s %[src7], %[src7], %[scale] \n\t"
- "cvt.w.s %[src0], %[src0] \n\t"
- "cvt.w.s %[src1], %[src1] \n\t"
- "cvt.w.s %[src2], %[src2] \n\t"
- "cvt.w.s %[src3], %[src3] \n\t"
- "cvt.w.s %[src4], %[src4] \n\t"
- "cvt.w.s %[src5], %[src5] \n\t"
- "cvt.w.s %[src6], %[src6] \n\t"
- "cvt.w.s %[src7], %[src7] \n\t"
- "mfc1 %[temp0], %[src0] \n\t"
- "mfc1 %[temp1], %[src1] \n\t"
- "mfc1 %[temp2], %[src2] \n\t"
- "mfc1 %[temp3], %[src3] \n\t"
- "mfc1 %[temp4], %[src4] \n\t"
- "mfc1 %[temp5], %[src5] \n\t"
- "mfc1 %[temp6], %[src6] \n\t"
- "mfc1 %[temp7], %[src7] \n\t"
- "sw %[temp0], 0(%[dst]) \n\t"
- "sw %[temp1], 4(%[dst]) \n\t"
- "sw %[temp2], 8(%[dst]) \n\t"
- "sw %[temp3], 12(%[dst]) \n\t"
- "sw %[temp4], 16(%[dst]) \n\t"
- "sw %[temp5], 20(%[dst]) \n\t"
- "sw %[temp6], 24(%[dst]) \n\t"
- "sw %[temp7], 28(%[dst]) \n\t"
-
- : [dst] "+r" (dst), [src] "+r" (src),
- [src0] "=&f" (src0), [src1] "=&f" (src1),
- [src2] "=&f" (src2), [src3] "=&f" (src3),
- [src4] "=&f" (src4), [src5] "=&f" (src5),
- [src6] "=&f" (src6), [src7] "=&f" (src7),
- [temp0] "=r" (temp0), [temp1] "=r" (temp1),
- [temp2] "=r" (temp2), [temp3] "=r" (temp3),
- [temp4] "=r" (temp4), [temp5] "=r" (temp5),
- [temp6] "=r" (temp6), [temp7] "=r" (temp7)
- : [scale] "f" (scale)
- : "memory"
- );
- src = src + 8;
- dst = dst + 8;
- len -= 8;
- } while (len > 0);
-}
-
-static void ac3_downmix_mips(float **samples, float (*matrix)[2],
- int out_ch, int in_ch, int len)
-{
- int i, j, i1, i2, i3;
- float v0, v1, v2, v3;
- float v4, v5, v6, v7;
- float samples0, samples1, samples2, samples3, matrix_j, matrix_j2;
- float *samples_p,*matrix_p, **samples_x, **samples_end, **samples_sw;
-
- __asm__ volatile(
- ".set push \n\t"
- ".set noreorder \n\t"
-
- "li %[i1], 2 \n\t"
- "sll %[len], 2 \n\t"
- "move %[i], $zero \n\t"
- "sll %[j], %[in_ch], 2 \n\t"
-
- "bne %[out_ch], %[i1], 3f \n\t" // if (out_ch == 2)
- " li %[i2], 1 \n\t"
-
- "2: \n\t" // start of the for loop (for (i = 0; i < len; i+=4))
- "move %[matrix_p], %[matrix] \n\t"
- "move %[samples_x], %[samples] \n\t"
- "mtc1 $zero, %[v0] \n\t"
- "mtc1 $zero, %[v1] \n\t"
- "mtc1 $zero, %[v2] \n\t"
- "mtc1 $zero, %[v3] \n\t"
- "mtc1 $zero, %[v4] \n\t"
- "mtc1 $zero, %[v5] \n\t"
- "mtc1 $zero, %[v6] \n\t"
- "mtc1 $zero, %[v7] \n\t"
- "addiu %[i1], %[i], 4 \n\t"
- "addiu %[i2], %[i], 8 \n\t"
- "lw %[samples_p], 0(%[samples_x]) \n\t"
- "addiu %[i3], %[i], 12 \n\t"
- "addu %[samples_end], %[samples_x], %[j] \n\t"
- "move %[samples_sw], %[samples_p] \n\t"
-
- "1: \n\t" // start of the inner for loop (for (j = 0; j < in_ch; j++))
- "lwc1 %[matrix_j], 0(%[matrix_p]) \n\t"
- "lwc1 %[matrix_j2], 4(%[matrix_p]) \n\t"
- "lwxc1 %[samples0], %[i](%[samples_p]) \n\t"
- "lwxc1 %[samples1], %[i1](%[samples_p]) \n\t"
- "lwxc1 %[samples2], %[i2](%[samples_p]) \n\t"
- "lwxc1 %[samples3], %[i3](%[samples_p]) \n\t"
- "addiu %[matrix_p], 8 \n\t"
- "addiu %[samples_x], 4 \n\t"
- "madd.s %[v0], %[v0], %[samples0], %[matrix_j] \n\t"
- "madd.s %[v1], %[v1], %[samples1], %[matrix_j] \n\t"
- "madd.s %[v2], %[v2], %[samples2], %[matrix_j] \n\t"
- "madd.s %[v3], %[v3], %[samples3], %[matrix_j] \n\t"
- "madd.s %[v4], %[v4], %[samples0], %[matrix_j2]\n\t"
- "madd.s %[v5], %[v5], %[samples1], %[matrix_j2]\n\t"
- "madd.s %[v6], %[v6], %[samples2], %[matrix_j2]\n\t"
- "madd.s %[v7], %[v7], %[samples3], %[matrix_j2]\n\t"
- "bne %[samples_x], %[samples_end], 1b \n\t"
- " lw %[samples_p], 0(%[samples_x]) \n\t"
-
- "lw %[samples_p], 4(%[samples]) \n\t"
- "swxc1 %[v0], %[i](%[samples_sw]) \n\t"
- "swxc1 %[v1], %[i1](%[samples_sw]) \n\t"
- "swxc1 %[v2], %[i2](%[samples_sw]) \n\t"
- "swxc1 %[v3], %[i3](%[samples_sw]) \n\t"
- "swxc1 %[v4], %[i](%[samples_p]) \n\t"
- "addiu %[i], 16 \n\t"
- "swxc1 %[v5], %[i1](%[samples_p]) \n\t"
- "swxc1 %[v6], %[i2](%[samples_p]) \n\t"
- "bne %[i], %[len], 2b \n\t"
- " swxc1 %[v7], %[i3](%[samples_p]) \n\t"
-
- "3: \n\t"
- "bne %[out_ch], %[i2], 6f \n\t" // if (out_ch == 1)
- " nop \n\t"
-
- "5: \n\t" // start of the outer for loop (for (i = 0; i < len; i+=4))
- "move %[matrix_p], %[matrix] \n\t"
- "move %[samples_x], %[samples] \n\t"
- "mtc1 $zero, %[v0] \n\t"
- "mtc1 $zero, %[v1] \n\t"
- "mtc1 $zero, %[v2] \n\t"
- "mtc1 $zero, %[v3] \n\t"
- "addiu %[i1], %[i], 4 \n\t"
- "addiu %[i2], %[i], 8 \n\t"
- "lw %[samples_p], 0(%[samples_x]) \n\t"
- "addiu %[i3], %[i], 12 \n\t"
- "addu %[samples_end], %[samples_x], %[j] \n\t"
- "move %[samples_sw], %[samples_p] \n\t"
-
- "4: \n\t" // start of the inner for loop (for (j = 0; j < in_ch; j++))
- "lwc1 %[matrix_j], 0(%[matrix_p]) \n\t"
- "lwxc1 %[samples0], %[i](%[samples_p]) \n\t"
- "lwxc1 %[samples1], %[i1](%[samples_p]) \n\t"
- "lwxc1 %[samples2], %[i2](%[samples_p]) \n\t"
- "lwxc1 %[samples3], %[i3](%[samples_p]) \n\t"
- "addiu %[matrix_p], 8 \n\t"
- "addiu %[samples_x], 4 \n\t"
- "madd.s %[v0], %[v0], %[samples0], %[matrix_j] \n\t"
- "madd.s %[v1], %[v1], %[samples1], %[matrix_j] \n\t"
- "madd.s %[v2], %[v2], %[samples2], %[matrix_j] \n\t"
- "madd.s %[v3], %[v3], %[samples3], %[matrix_j] \n\t"
- "bne %[samples_x], %[samples_end], 4b \n\t"
- " lw %[samples_p], 0(%[samples_x]) \n\t"
-
- "swxc1 %[v0], %[i](%[samples_sw]) \n\t"
- "addiu %[i], 16 \n\t"
- "swxc1 %[v1], %[i1](%[samples_sw]) \n\t"
- "swxc1 %[v2], %[i2](%[samples_sw]) \n\t"
- "bne %[i], %[len], 5b \n\t"
- " swxc1 %[v3], %[i3](%[samples_sw]) \n\t"
- "6: \n\t"
-
- ".set pop"
- :[samples_p]"=&r"(samples_p), [matrix_j]"=&f"(matrix_j), [matrix_j2]"=&f"(matrix_j2),
- [samples0]"=&f"(samples0), [samples1]"=&f"(samples1),
- [samples2]"=&f"(samples2), [samples3]"=&f"(samples3),
- [v0]"=&f"(v0), [v1]"=&f"(v1), [v2]"=&f"(v2), [v3]"=&f"(v3),
- [v4]"=&f"(v4), [v5]"=&f"(v5), [v6]"=&f"(v6), [v7]"=&f"(v7),
- [samples_x]"=&r"(samples_x), [matrix_p]"=&r"(matrix_p),
- [samples_end]"=&r"(samples_end), [samples_sw]"=&r"(samples_sw),
- [i1]"=&r"(i1), [i2]"=&r"(i2), [i3]"=&r"(i3), [i]"=&r"(i),
- [j]"=&r"(j), [len]"+r"(len)
- :[samples]"r"(samples), [matrix]"r"(matrix),
- [in_ch]"r"(in_ch), [out_ch]"r"(out_ch)
- :"memory"
- );
-}
-#endif
-#endif /* HAVE_INLINE_ASM */
-
-void ff_ac3dsp_init_mips(AC3DSPContext *c, int bit_exact) {
-#if HAVE_INLINE_ASM
-#if HAVE_MIPSDSPR1
- c->bit_alloc_calc_bap = ac3_bit_alloc_calc_bap_mips;
- c->update_bap_counts = ac3_update_bap_counts_mips;
-#endif
-#if HAVE_MIPSFPU && HAVE_MIPS32R2
- c->float_to_fixed24 = float_to_fixed24_mips;
- c->downmix = ac3_downmix_mips;
-#endif
-#endif
-
-}
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-06 23:31:04 +0000