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/*
* Copyright (c) 2016 Alexandra Hájková
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU 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 <string.h>
#include "libavutil/intreadwrite.h"
#include "libavutil/mem_internal.h"
#include "libavcodec/hevcdsp.h"
#include "checkasm.h"
#define randomize_buffers(buf, size) \
do { \
int j; \
for (j = 0; j < size; j++) { \
int16_t r = rnd(); \
AV_WN16A(buf + j, r >> 3); \
} \
} while (0)
#define randomize_buffers2(buf, size, mask) \
do { \
int j; \
for (j = 0; j < size; j++) \
AV_WN16A(buf + j * 2, rnd() & mask); \
} while (0)
static void compare_add_res(int size, ptrdiff_t stride, int overflow_test, int mask)
{
LOCAL_ALIGNED_32(int16_t, res0, [32 * 32]);
LOCAL_ALIGNED_32(int16_t, res1, [32 * 32]);
LOCAL_ALIGNED_32(uint8_t, dst0, [32 * 32 * 2]);
LOCAL_ALIGNED_32(uint8_t, dst1, [32 * 32 * 2]);
declare_func_emms(AV_CPU_FLAG_MMX, void, uint8_t *dst, int16_t *res, ptrdiff_t stride);
randomize_buffers(res0, size);
randomize_buffers2(dst0, size, mask);
if (overflow_test)
res0[0] = 0x8000;
memcpy(res1, res0, sizeof(*res0) * size);
memcpy(dst1, dst0, sizeof(int16_t) * size);
call_ref(dst0, res0, stride);
call_new(dst1, res1, stride);
if (memcmp(dst0, dst1, size))
fail();
bench_new(dst1, res1, stride);
}
static void check_add_res(HEVCDSPContext *h, int bit_depth)
{
int i;
int mask = bit_depth == 8 ? 0xFFFF : bit_depth == 10 ? 0x03FF : 0x07FF;
for (i = 2; i <= 5; i++) {
int block_size = 1 << i;
int size = block_size * block_size;
ptrdiff_t stride = block_size << (bit_depth > 8);
if (check_func(h->add_residual[i - 2], "hevc_add_res_%dx%d_%d", block_size, block_size, bit_depth)) {
compare_add_res(size, stride, 0, mask);
// overflow test for res = -32768
compare_add_res(size, stride, 1, mask);
}
}
}
void checkasm_check_hevc_add_res(void)
{
int bit_depth;
for (bit_depth = 8; bit_depth <= 12; bit_depth++) {
HEVCDSPContext h;
ff_hevc_dsp_init(&h, bit_depth);
check_add_res(&h, bit_depth);
}
report("add_residual");
}
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