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Code Issues Releases Activity

avcodec/intrax8dsp: Copy several bytes at once

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Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-02-23 21:32:57 +01:00
parent 6f31b05389
commit 90d9e2a26c
1 changed files with 7 additions and 15 deletions
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22
libavcodec/intrax8dsp.c
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@@ -23,6 +23,7 @@
#include "intrax8dsp.h"
#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
/*
* area positions, #3 is 1 pixel only, other are 8 pixels
@@ -226,22 +227,16 @@ static void spatial_compensation_1(const uint8_t *restrict src, uint8_t *restric
static void spatial_compensation_2(const uint8_t *restrict src, uint8_t *restrict dst, ptrdiff_t stride)
{
int x, y;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++)
dst[x] = src[area4 + 1 + y + x];
for (int y = 0; y < 8; y++) {
AV_COPY64U(dst, src + area4 + 1 + y);
dst += stride;
}
}
static void spatial_compensation_3(const uint8_t *restrict src, uint8_t *restrict dst, ptrdiff_t stride)
{
int x, y;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++)
dst[x] = src[area4 + ((y + 1) >> 1) + x];
for (int y = 0; y < 8; y++) {
AV_COPY64U(dst, src + area4 + ((y + 1) >> 1));
dst += stride;
}
}
@@ -274,11 +269,8 @@ static void spatial_compensation_5(const uint8_t *restrict src, uint8_t *restric
static void spatial_compensation_6(const uint8_t *restrict src, uint8_t *restrict dst, ptrdiff_t stride)
{
int x, y;
for (y = 0; y < 8; y++) {
for (x = 0; x < 8; x++)
dst[x] = src[area3 + x - y];
for (int y = 0; y < 8; y++) {
AV_COPY64U(dst, src + area3 - y);
dst += stride;
}
}