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/*
* Copyright (c) 2015 Shivraj Patil (Shivraj.Patil@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 "libavutil/mips/generic_macros_msa.h"
#include "pixblockdsp_mips.h"
static void diff_pixels_msa(int16_t *block, const uint8_t *src1,
const uint8_t *src2, int32_t stride)
{
v16u8 in10, in11, in12, in13, in14, in15, in16, in17;
v16u8 in20, in21, in22, in23, in24, in25, in26, in27;
v8i16 out0, out1, out2, out3, out4, out5, out6, out7;
LD_UB8(src1, stride, in10, in11, in12, in13, in14, in15, in16, in17);
LD_UB8(src2, stride, in20, in21, in22, in23, in24, in25, in26, in27);
ILVR_B4_SH(in10, in20, in11, in21, in12, in22, in13, in23,
out0, out1, out2, out3);
ILVR_B4_SH(in14, in24, in15, in25, in16, in26, in17, in27,
out4, out5, out6, out7);
HSUB_UB4_SH(out0, out1, out2, out3, out0, out1, out2, out3);
HSUB_UB4_SH(out4, out5, out6, out7, out4, out5, out6, out7);
ST_SH8(out0, out1, out2, out3, out4, out5, out6, out7, block, 8);
}
static void copy_8bit_to_16bit_width8_msa(const uint8_t *src, int32_t src_stride,
int16_t *dst, int32_t dst_stride,
int32_t height)
{
uint8_t *dst_ptr;
int32_t cnt;
v16u8 src0, src1, src2, src3;
v16i8 zero = { 0 };
dst_ptr = (uint8_t *) dst;
for (cnt = (height >> 2); cnt--;) {
LD_UB4(src, src_stride, src0, src1, src2, src3);
src += (4 * src_stride);
ILVR_B4_UB(zero, src0, zero, src1, zero, src2, zero, src3,
src0, src1, src2, src3);
ST_UB4(src0, src1, src2, src3, dst_ptr, (dst_stride * 2));
dst_ptr += (4 * 2 * dst_stride);
}
}
static void copy_16multx8mult_msa(const uint8_t *src, int32_t src_stride,
uint8_t *dst, int32_t dst_stride,
int32_t height, int32_t width)
{
int32_t cnt, loop_cnt;
const uint8_t *src_tmp;
uint8_t *dst_tmp;
v16u8 src0, src1, src2, src3, src4, src5, src6, src7;
for (cnt = (width >> 4); cnt--;) {
src_tmp = src;
dst_tmp = dst;
for (loop_cnt = (height >> 3); loop_cnt--;) {
LD_UB8(src_tmp, src_stride,
src0, src1, src2, src3, src4, src5, src6, src7);
src_tmp += (8 * src_stride);
ST_UB8(src0, src1, src2, src3, src4, src5, src6, src7,
dst_tmp, dst_stride);
dst_tmp += (8 * dst_stride);
}
src += 16;
dst += 16;
}
}
static void copy_width16_msa(const uint8_t *src, int32_t src_stride,
uint8_t *dst, int32_t dst_stride,
int32_t height)
{
int32_t cnt;
v16u8 src0, src1, src2, src3, src4, src5, src6, src7;
if (0 == height % 12) {
for (cnt = (height / 12); cnt--;) {
LD_UB8(src, src_stride,
src0, src1, src2, src3, src4, src5, src6, src7);
src += (8 * src_stride);
ST_UB8(src0, src1, src2, src3, src4, src5, src6, src7,
dst, dst_stride);
dst += (8 * dst_stride);
LD_UB4(src, src_stride, src0, src1, src2, src3);
src += (4 * src_stride);
ST_UB4(src0, src1, src2, src3, dst, dst_stride);
dst += (4 * dst_stride);
}
} else if (0 == height % 8) {
copy_16multx8mult_msa(src, src_stride, dst, dst_stride, height, 16);
} else if (0 == height % 4) {
for (cnt = (height >> 2); cnt--;) {
LD_UB4(src, src_stride, src0, src1, src2, src3);
src += (4 * src_stride);
ST_UB4(src0, src1, src2, src3, dst, dst_stride);
dst += (4 * dst_stride);
}
}
}
void ff_get_pixels_16_msa(int16_t *av_restrict dest, const uint8_t *src,
ptrdiff_t stride)
{
copy_width16_msa(src, stride, (uint8_t *) dest, 16, 8);
}
void ff_get_pixels_8_msa(int16_t *av_restrict dest, const uint8_t *src,
ptrdiff_t stride)
{
copy_8bit_to_16bit_width8_msa(src, stride, dest, 8, 8);
}
void ff_diff_pixels_msa(int16_t *av_restrict block, const uint8_t *src1,
const uint8_t *src2, int stride)
{
diff_pixels_msa(block, src1, src2, stride);
}
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