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/*
* Copyright (c) 2022 Ben Avison
*
* 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 "checkasm.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/idctdsp.h"
#include "libavutil/common.h"
#include "libavutil/internal.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mem_internal.h"
#define IDCTDSP_TEST(func) { #func, offsetof(IDCTDSPContext, func) },
typedef struct {
const char *name;
size_t offset;
} test;
#define RANDOMIZE_BUFFER16(name, size) \
do { \
int i; \
for (i = 0; i < size; ++i) { \
uint16_t r = rnd() % 0x201 - 0x100; \
AV_WN16A(name##0 + i, r); \
AV_WN16A(name##1 + i, r); \
} \
} while (0)
#define RANDOMIZE_BUFFER8(name, size) \
do { \
int i; \
for (i = 0; i < size; ++i) { \
uint8_t r = rnd(); \
name##0[i] = r; \
name##1[i] = r; \
} \
} while (0)
static void check_add_put_clamped(void)
{
/* Source buffers are only as big as needed, since any over-read won't affect results */
LOCAL_ALIGNED_16(int16_t, src0, [64]);
LOCAL_ALIGNED_16(int16_t, src1, [64]);
/* Destination buffers have borders of one row above/below and 8 columns left/right to catch overflows */
LOCAL_ALIGNED_8(uint8_t, dst0, [10 * 24]);
LOCAL_ALIGNED_8(uint8_t, dst1, [10 * 24]);
AVCodecContext avctx = { 0 };
IDCTDSPContext h;
const test tests[] = {
IDCTDSP_TEST(add_pixels_clamped)
IDCTDSP_TEST(put_pixels_clamped)
IDCTDSP_TEST(put_signed_pixels_clamped)
};
ff_idctdsp_init(&h, &avctx);
for (size_t t = 0; t < FF_ARRAY_ELEMS(tests); ++t) {
void (*func)(const int16_t *, uint8_t * ptrdiff_t) = *(void **)((intptr_t) &h + tests[t].offset);
if (check_func(func, "idctdsp.%s", tests[t].name)) {
declare_func(void, const int16_t *, uint8_t *, ptrdiff_t);
RANDOMIZE_BUFFER16(src, 64);
RANDOMIZE_BUFFER8(dst, 10 * 24);
call_ref(src0, dst0 + 24 + 8, 24);
call_new(src1, dst1 + 24 + 8, 24);
if (memcmp(dst0, dst1, 10 * 24))
fail();
bench_new(src1, dst1 + 24 + 8, 24);
}
}
}
void checkasm_check_idctdsp(void)
{
check_add_put_clamped();
report("idctdsp");
}
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