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swscale: simplify unscaled rgb48<->bgr48

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Using av_bswap16 should be enough.
This commit is contained in:
Paul B Mahol
2012-07-18 00:09:37 +00:00
parent 204c4e953d
commit 9d8eac6899
4 changed files with 14 additions and 15 deletions
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17
libswscale/rgb2rgb.c
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@@ -26,7 +26,6 @@
#include <inttypes.h>
#include "libavutil/bswap.h"
#include "libavutil/intreadwrite.h"
#include "config.h"
#include "rgb2rgb.h"
#include "swscale.h"
@@ -335,20 +334,20 @@ DEFINE_SHUFFLE_BYTES(1, 2, 3, 0)
DEFINE_SHUFFLE_BYTES(3, 0, 1, 2)
DEFINE_SHUFFLE_BYTES(3, 2, 1, 0)
#define DEFINE_RGB48TOBGR48(ie, oe) \
void rgb48tobgr48_ ## ie ## oe(const uint8_t *src, \
uint8_t *dst, int src_size) \
#define DEFINE_RGB48TOBGR48(need_bswap, swap) \
void rgb48tobgr48_ ## need_bswap(const uint8_t *src, \
uint8_t *dst, int src_size) \
{ \
uint16_t *d = (uint16_t *)dst; \
uint16_t *s = (uint16_t *)src; \
int i, num_pixels = src_size >> 1; \
\
for (i = 0; i < num_pixels; i += 3) { \
AV_W ## oe ## 16(&d[i ], AV_R ## ie ## 16(&s[i + 2])); \
AV_W ## oe ## 16(&d[i + 1], AV_R ## ie ## 16(&s[i + 1])); \
AV_W ## oe ## 16(&d[i + 2], AV_R ## ie ## 16(&s[i ])); \
d[i ] = swap ? av_bswap16(s[i + 2]) : s[i + 2]; \
d[i + 1] = swap ? av_bswap16(s[i + 1]) : s[i + 1]; \
d[i + 2] = swap ? av_bswap16(s[i ]) : s[i ]; \
} \
}
DEFINE_RGB48TOBGR48(L, L)
DEFINE_RGB48TOBGR48(L, B)
DEFINE_RGB48TOBGR48(nobswap, 0)
DEFINE_RGB48TOBGR48(bswap, 1)