vpx/vpx_dsp/deblock.c
Rahul Chaudhry 0d88e15454 Add visibility="protected" attribute for global variables referenced in asm files.
During aosp builds with binutils-2.27, we're seeing linker error
messages of this form:
libvpx.a(subpixel_mmx.o): relocation R_386_GOTOFF against preemptible
symbol vp8_bilinear_filters_x86_8 cannot be used when making a shared
object

subpixel_mmx.o is assembled from "vp8/common/x86/subpixel_mmx.asm".
Other messages refer to symbol references from deblock_sse2.o and
subpixel_sse2.o, also assembled from asm files.

This change marks such symbols as having "protected" visibility. This
satisfies the linker as the symbols are not preemptible from outside
the shared library now, which I think is the original intent anyway.

Change-Id: I2817f7a5f43041533d65ebf41aefd63f8581a452
2017-05-12 11:11:16 -07:00

195 lines
6.4 KiB
C

/*
* Copyright (c) 2016 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 <assert.h>
#include <stdlib.h>
#include "vpx_ports/mem.h"
DECLARE_PROTECTED(const int16_t vpx_rv[]) = {
8, 5, 2, 2, 8, 12, 4, 9, 8, 3, 0, 3, 9, 0, 0, 0, 8, 3, 14,
4, 10, 1, 11, 14, 1, 14, 9, 6, 12, 11, 8, 6, 10, 0, 0, 8, 9, 0,
3, 14, 8, 11, 13, 4, 2, 9, 0, 3, 9, 6, 1, 2, 3, 14, 13, 1, 8,
2, 9, 7, 3, 3, 1, 13, 13, 6, 6, 5, 2, 7, 11, 9, 11, 8, 7, 3,
2, 0, 13, 13, 14, 4, 12, 5, 12, 10, 8, 10, 13, 10, 4, 14, 4, 10, 0,
8, 11, 1, 13, 7, 7, 14, 6, 14, 13, 2, 13, 5, 4, 4, 0, 10, 0, 5,
13, 2, 12, 7, 11, 13, 8, 0, 4, 10, 7, 2, 7, 2, 2, 5, 3, 4, 7,
3, 3, 14, 14, 5, 9, 13, 3, 14, 3, 6, 3, 0, 11, 8, 13, 1, 13, 1,
12, 0, 10, 9, 7, 6, 2, 8, 5, 2, 13, 7, 1, 13, 14, 7, 6, 7, 9,
6, 10, 11, 7, 8, 7, 5, 14, 8, 4, 4, 0, 8, 7, 10, 0, 8, 14, 11,
3, 12, 5, 7, 14, 3, 14, 5, 2, 6, 11, 12, 12, 8, 0, 11, 13, 1, 2,
0, 5, 10, 14, 7, 8, 0, 4, 11, 0, 8, 0, 3, 10, 5, 8, 0, 11, 6,
7, 8, 10, 7, 13, 9, 2, 5, 1, 5, 10, 2, 4, 3, 5, 6, 10, 8, 9,
4, 11, 14, 0, 10, 0, 5, 13, 2, 12, 7, 11, 13, 8, 0, 4, 10, 7, 2,
7, 2, 2, 5, 3, 4, 7, 3, 3, 14, 14, 5, 9, 13, 3, 14, 3, 6, 3,
0, 11, 8, 13, 1, 13, 1, 12, 0, 10, 9, 7, 6, 2, 8, 5, 2, 13, 7,
1, 13, 14, 7, 6, 7, 9, 6, 10, 11, 7, 8, 7, 5, 14, 8, 4, 4, 0,
8, 7, 10, 0, 8, 14, 11, 3, 12, 5, 7, 14, 3, 14, 5, 2, 6, 11, 12,
12, 8, 0, 11, 13, 1, 2, 0, 5, 10, 14, 7, 8, 0, 4, 11, 0, 8, 0,
3, 10, 5, 8, 0, 11, 6, 7, 8, 10, 7, 13, 9, 2, 5, 1, 5, 10, 2,
4, 3, 5, 6, 10, 8, 9, 4, 11, 14, 3, 8, 3, 7, 8, 5, 11, 4, 12,
3, 11, 9, 14, 8, 14, 13, 4, 3, 1, 2, 14, 6, 5, 4, 4, 11, 4, 6,
2, 1, 5, 8, 8, 12, 13, 5, 14, 10, 12, 13, 0, 9, 5, 5, 11, 10, 13,
9, 10, 13,
};
void vpx_post_proc_down_and_across_mb_row_c(unsigned char *src_ptr,
unsigned char *dst_ptr,
int src_pixels_per_line,
int dst_pixels_per_line, int cols,
unsigned char *f, int size) {
unsigned char *p_src, *p_dst;
int row;
int col;
unsigned char v;
unsigned char d[4];
assert(size >= 8);
assert(cols >= 8);
for (row = 0; row < size; row++) {
/* post_proc_down for one row */
p_src = src_ptr;
p_dst = dst_ptr;
for (col = 0; col < cols; col++) {
unsigned char p_above2 = p_src[col - 2 * src_pixels_per_line];
unsigned char p_above1 = p_src[col - src_pixels_per_line];
unsigned char p_below1 = p_src[col + src_pixels_per_line];
unsigned char p_below2 = p_src[col + 2 * src_pixels_per_line];
v = p_src[col];
if ((abs(v - p_above2) < f[col]) && (abs(v - p_above1) < f[col]) &&
(abs(v - p_below1) < f[col]) && (abs(v - p_below2) < f[col])) {
unsigned char k1, k2, k3;
k1 = (p_above2 + p_above1 + 1) >> 1;
k2 = (p_below2 + p_below1 + 1) >> 1;
k3 = (k1 + k2 + 1) >> 1;
v = (k3 + v + 1) >> 1;
}
p_dst[col] = v;
}
/* now post_proc_across */
p_src = dst_ptr;
p_dst = dst_ptr;
p_src[-2] = p_src[-1] = p_src[0];
p_src[cols] = p_src[cols + 1] = p_src[cols - 1];
for (col = 0; col < cols; col++) {
v = p_src[col];
if ((abs(v - p_src[col - 2]) < f[col]) &&
(abs(v - p_src[col - 1]) < f[col]) &&
(abs(v - p_src[col + 1]) < f[col]) &&
(abs(v - p_src[col + 2]) < f[col])) {
unsigned char k1, k2, k3;
k1 = (p_src[col - 2] + p_src[col - 1] + 1) >> 1;
k2 = (p_src[col + 2] + p_src[col + 1] + 1) >> 1;
k3 = (k1 + k2 + 1) >> 1;
v = (k3 + v + 1) >> 1;
}
d[col & 3] = v;
if (col >= 2) p_dst[col - 2] = d[(col - 2) & 3];
}
/* handle the last two pixels */
p_dst[col - 2] = d[(col - 2) & 3];
p_dst[col - 1] = d[(col - 1) & 3];
/* next row */
src_ptr += src_pixels_per_line;
dst_ptr += dst_pixels_per_line;
}
}
void vpx_mbpost_proc_across_ip_c(unsigned char *src, int pitch, int rows,
int cols, int flimit) {
int r, c, i;
unsigned char *s = src;
unsigned char d[16];
for (r = 0; r < rows; r++) {
int sumsq = 16;
int sum = 0;
for (i = -8; i < 0; i++) s[i] = s[0];
/* 17 avoids valgrind warning - we buffer values in c in d
* and only write them when we've read 8 ahead...
*/
for (i = 0; i < 17; i++) s[i + cols] = s[cols - 1];
for (i = -8; i <= 6; i++) {
sumsq += s[i] * s[i];
sum += s[i];
d[i + 8] = 0;
}
for (c = 0; c < cols + 8; c++) {
int x = s[c + 7] - s[c - 8];
int y = s[c + 7] + s[c - 8];
sum += x;
sumsq += x * y;
d[c & 15] = s[c];
if (sumsq * 15 - sum * sum < flimit) {
d[c & 15] = (8 + sum + s[c]) >> 4;
}
s[c - 8] = d[(c - 8) & 15];
}
s += pitch;
}
}
void vpx_mbpost_proc_down_c(unsigned char *dst, int pitch, int rows, int cols,
int flimit) {
int r, c, i;
for (c = 0; c < cols; c++) {
unsigned char *s = &dst[c];
int sumsq = 0;
int sum = 0;
unsigned char d[16];
for (i = -8; i < 0; i++) s[i * pitch] = s[0];
/* 17 avoids valgrind warning - we buffer values in c in d
* and only write them when we've read 8 ahead...
*/
for (i = 0; i < 17; i++) s[(i + rows) * pitch] = s[(rows - 1) * pitch];
for (i = -8; i <= 6; i++) {
sumsq += s[i * pitch] * s[i * pitch];
sum += s[i * pitch];
}
for (r = 0; r < rows + 8; r++) {
sumsq += s[7 * pitch] * s[7 * pitch] - s[-8 * pitch] * s[-8 * pitch];
sum += s[7 * pitch] - s[-8 * pitch];
d[r & 15] = s[0];
if (sumsq * 15 - sum * sum < flimit) {
d[r & 15] = (vpx_rv[(r & 127) + (c & 7)] + sum + s[0]) >> 4;
}
if (r >= 8) s[-8 * pitch] = d[(r - 8) & 15];
s += pitch;
}
}
}