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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/common.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mem.h"
#include "libavcodec/lossless_videodsp.h"
#include "checkasm.h"
#define randomize_buffers(buf, size) \
do { \
int j; \
uint8_t *tmp_buf = (uint8_t *)buf;\
for (j = 0; j < size; j++) \
tmp_buf[j] = rnd() & 0xFF; \
} while (0)
#define init_buffer(a0, a1, type, width)\
if (!a0 || !a1)\
fail();\
randomize_buffers(a0, width * sizeof(type));\
memcpy(a1, a0, width*sizeof(type));\
static void check_add_bytes(LLVidDSPContext *c, int width)
{
uint8_t *dst0 = av_mallocz(width);
uint8_t *dst1 = av_mallocz(width);
uint8_t *src0 = av_calloc(width, sizeof(*src0));
uint8_t *src1 = av_calloc(width, sizeof(*src1));
declare_func(void, uint8_t *dst, uint8_t *src, ptrdiff_t w);
init_buffer(src0, src1, uint8_t, width);
if (!dst0 || !dst1)
fail();
if (check_func(c->add_bytes, "add_bytes")) {
call_ref(dst0, src0, width);
call_new(dst1, src1, width);
if (memcmp(dst0, dst1, width))
fail();
bench_new(dst1, src1, width);
}
av_free(src0);
av_free(src1);
av_free(dst0);
av_free(dst1);
}
static void check_add_median_pred(LLVidDSPContext *c, int width) {
int A0, A1, B0, B1;
uint8_t *dst0 = av_mallocz(width);
uint8_t *dst1 = av_mallocz(width);
uint8_t *src0 = av_calloc(width, sizeof(*src0));
uint8_t *src1 = av_calloc(width, sizeof(*src1));
uint8_t *diff0 = av_calloc(width, sizeof(*diff0));
uint8_t *diff1 = av_calloc(width, sizeof(*diff1));
declare_func(void, uint8_t *dst, const uint8_t *src1,
const uint8_t *diff, ptrdiff_t w,
int *left, int *left_top);
init_buffer(src0, src1, uint8_t, width);
init_buffer(diff0, diff1, uint8_t, width);
A0 = rnd() & 0xFF;
B0 = rnd() & 0xFF;
A1 = A0;
B1 = B0;
if (check_func(c->add_median_pred, "add_median_pred")) {
call_ref(dst0, src0, diff0, width, &A0, &B0);
call_new(dst1, src1, diff1, width, &A1, &B1);
if (memcmp(dst0, dst1, width) || (A0 != A1) || (B0 != B1))
fail();
bench_new(dst1, src1, diff1, width, &A1, &B1);
}
av_free(src0);
av_free(src1);
av_free(diff0);
av_free(diff1);
av_free(dst0);
av_free(dst1);
}
static void check_add_left_pred(LLVidDSPContext *c, int width, int acc, const char * report)
{
int res0, res1;
uint8_t *dst0 = av_mallocz(width);
uint8_t *dst1 = av_mallocz(width);
uint8_t *src0 = av_calloc(width, sizeof(*src0));
uint8_t *src1 = av_calloc(width, sizeof(*src1));
declare_func(int, uint8_t *dst, uint8_t *src, ptrdiff_t w, int acc);
init_buffer(src0, src1, uint8_t, width);
if (!dst0 || !dst1)
fail();
if (check_func(c->add_left_pred, "%s", report)) {
res0 = call_ref(dst0, src0, width, acc);
res1 = call_new(dst1, src1, width, acc);
if ((res0 & 0xFF) != (res1 & 0xFF)||\
memcmp(dst0, dst1, width))
fail();
bench_new(dst1, src1, width, acc);
}
av_free(src0);
av_free(src1);
av_free(dst0);
av_free(dst1);
}
static void check_add_left_pred_16(LLVidDSPContext *c, unsigned mask, int width, unsigned acc, const char * report)
{
int res0, res1;
uint16_t *dst0 = av_calloc(width, sizeof(*dst0));
uint16_t *dst1 = av_calloc(width, sizeof(*dst1));
uint16_t *src0 = av_calloc(width, sizeof(*src0));
uint16_t *src1 = av_calloc(width, sizeof(*src1));
declare_func(int, uint16_t *dst, uint16_t *src, unsigned mask, ptrdiff_t w, unsigned acc);
init_buffer(src0, src1, uint16_t, width);
if (!dst0 || !dst1)
fail();
if (check_func(c->add_left_pred_int16, "%s", report)) {
res0 = call_ref(dst0, src0, mask, width, acc);
res1 = call_new(dst1, src1, mask, width, acc);
if ((res0 &0xFFFF) != (res1 &0xFFFF)||\
memcmp(dst0, dst1, width))
fail();
bench_new(dst1, src1, mask, width, acc);
}
av_free(src0);
av_free(src1);
av_free(dst0);
av_free(dst1);
}
static void check_add_gradient_pred(LLVidDSPContext *c, int w) {
int src_size, stride;
uint8_t *src0, *src1;
declare_func(void, uint8_t *src, const ptrdiff_t stride,
const ptrdiff_t width);
stride = w + 32;
src_size = (stride + 32) * 2; /* dsp need previous line, and ignore the start of the line */
src0 = av_mallocz(src_size);
src1 = av_mallocz(src_size);
init_buffer(src0, src1, uint8_t, src_size);
if (check_func(c->add_gradient_pred, "add_gradient_pred")) {
call_ref(src0 + stride + 32, stride, w);
call_new(src1 + stride + 32, stride, w);
if (memcmp(src0, src1, stride)||/* previous line doesn't change */
memcmp(src0+stride, src1 + stride, w + 32)) {
fail();
}
bench_new(src1 + stride + 32, stride, w);
}
av_free(src0);
av_free(src1);
}
void checkasm_check_llviddsp(void)
{
LLVidDSPContext c;
int width = 16 * av_clip(rnd(), 16, 128);
int accRnd = rnd() & 0xFF;
ff_llviddsp_init(&c);
check_add_bytes(&c, width);
report("add_bytes");
check_add_median_pred(&c, width);
report("add_median_pred");
check_add_left_pred(&c, width, 0, "add_left_pred_zero");
report("add_left_pred_zero");
check_add_left_pred(&c, width, accRnd, "add_left_pred_rnd_acc");
report("add_left_pred_rnd_acc");
check_add_left_pred_16(&c, 255, width, accRnd, "add_left_pred_int16");
report("add_left_pred_int16");
check_add_gradient_pred(&c, width);
report("add_gradient_pred");
}
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