Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 172 insertions, 0 deletions

diff --git a/media/ffvpx/libavutil/fixed_dsp.c b/media/ffvpx/libavutil/fixed_dsp.c
new file mode 100644
index 0000000000..5ab47d55d0
--- /dev/null
+++ b/media/ffvpx/libavutil/fixed_dsp.c
@@ -0,0 +1,172 @@
+/*
+ * 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.
+ *
+ * Author:  Nedeljko Babic (nedeljko.babic imgtec com)
+ *
+ * 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
+ */
+
+#include "common.h"
+#include "fixed_dsp.h"
+
+static void vector_fmul_add_c(int *dst, const int *src0, const int *src1, const int *src2, int len){
+    int i;
+    int64_t accu;
+
+    for (i=0; i<len; i++) {
+        accu = (int64_t)src0[i] * src1[i];
+        dst[i] = src2[i] + (int)((accu + 0x40000000) >> 31);
+    }
+}
+
+static void vector_fmul_reverse_c(int *dst, const int *src0, const int *src1, int len)
+{
+    int i;
+    int64_t accu;
+
+    src1 += len-1;
+    for (i=0; i<len; i++) {
+        accu = (int64_t)src0[i] * src1[-i];
+        dst[i] = (int)((accu+0x40000000) >> 31);
+    }
+}
+
+static void vector_fmul_window_scaled_c(int16_t *dst, const int32_t *src0,
+                                       const int32_t *src1, const int32_t *win,
+                                       int len, uint8_t bits)
+{
+    int32_t s0, s1, wi, wj, i,j, round;
+
+    dst += len;
+    win += len;
+    src0+= len;
+    round = bits? 1 << (bits-1) : 0;
+
+    for (i=-len, j=len-1; i<0; i++, j--) {
+        s0 = src0[i];
+        s1 = src1[j];
+        wi = win[i];
+        wj = win[j];
+        dst[i] = av_clip_int16(((((int64_t)s0*wj - (int64_t)s1*wi + 0x40000000) >> 31) + round) >> bits);
+        dst[j] = av_clip_int16(((((int64_t)s0*wi + (int64_t)s1*wj + 0x40000000) >> 31) + round) >> bits);
+    }
+}
+
+static void vector_fmul_window_c(int32_t *dst, const int32_t *src0,
+                                       const int32_t *src1, const int32_t *win,
+                                       int len)
+{
+    int32_t s0, s1, wi, wj, i, j;
+
+    dst += len;
+    win += len;
+    src0+= len;
+
+    for (i=-len, j=len-1; i<0; i++, j--) {
+        s0 = src0[i];
+        s1 = src1[j];
+        wi = win[i];
+        wj = win[j];
+        dst[i] = ((int64_t)s0*wj - (int64_t)s1*wi + 0x40000000) >> 31;
+        dst[j] = ((int64_t)s0*wi + (int64_t)s1*wj + 0x40000000) >> 31;
+    }
+}
+
+static void vector_fmul_c(int *dst, const int *src0, const int *src1, int len)
+{
+    int i;
+    int64_t accu;
+
+    for (i = 0; i < len; i++){
+        accu = (int64_t)src0[i] * src1[i];
+        dst[i] = (int)((accu+0x40000000) >> 31);
+    }
+}
+
+static int scalarproduct_fixed_c(const int *v1, const int *v2, int len)
+{
+    /** p is initialized with 0x40000000 so that the proper rounding will occur
+      * at the end */
+    int64_t p = 0x40000000;
+    int i;
+
+    for (i = 0; i < len; i++)
+        p += (int64_t)v1[i] * v2[i];
+
+    return (int)(p >> 31);
+}
+
+static void butterflies_fixed_c(int *av_restrict v1s, int *av_restrict v2, int len)
+{
+    int i;
+    unsigned int *v1 = v1s;
+
+    for (i = 0; i < len; i++){
+        int t = v1[i] - v2[i];
+        v1[i] += v2[i];
+        v2[i] = t;
+    }
+}
+
+AVFixedDSPContext * avpriv_alloc_fixed_dsp(int bit_exact)
+{
+    AVFixedDSPContext * fdsp = av_malloc(sizeof(AVFixedDSPContext));
+
+    if (!fdsp)
+        return NULL;
+
+    fdsp->vector_fmul_window_scaled = vector_fmul_window_scaled_c;
+    fdsp->vector_fmul_window = vector_fmul_window_c;
+    fdsp->vector_fmul = vector_fmul_c;
+    fdsp->vector_fmul_add = vector_fmul_add_c;
+    fdsp->vector_fmul_reverse = vector_fmul_reverse_c;
+    fdsp->butterflies_fixed = butterflies_fixed_c;
+    fdsp->scalarproduct_fixed = scalarproduct_fixed_c;
+
+#if ARCH_RISCV
+    ff_fixed_dsp_init_riscv(fdsp);
+#elif ARCH_X86
+    ff_fixed_dsp_init_x86(fdsp);
+#endif
+
+    return fdsp;
+}