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videoscale: Fix black horizontal line in image

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This commit is contained in:
David Schleef 2010-06-14 15:19:32 -07:00
parent 4219a5ae5c
commit 7778ed7382
1 changed files with 32 additions and 6 deletions
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38
gst/videoscale/vs_scanline.c
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@ -29,6 +29,8 @@
#include "gstvideoscaleorc.h"
#include <string.h>
/* greyscale, i.e., single componenet */
void
@ -92,7 +94,11 @@ vs_scanline_merge_linear_Y (uint8_t * dest, uint8_t * src1, uint8_t * src2,
{
uint32_t value = x >> 8;
orc_merge_linear_u8 (dest, src1, src2, 256 - value, value, n);
if (value == 0) {
memcpy (dest, src1, n);
} else {
orc_merge_linear_u8 (dest, src1, src2, 256 - value, value, n);
}
}
void
@ -160,7 +166,11 @@ vs_scanline_merge_linear_Y16 (uint8_t * dest, uint8_t * src1, uint8_t * src2,
const uint16_t *s1 = (const uint16_t *) src1;
const uint16_t *s2 = (const uint16_t *) src2;
orc_merge_linear_u16 (d, s1, s2, 65536 - x, x, n);
if (x == 0) {
memcpy (d, s1, n * 2);
} else {
orc_merge_linear_u16 (d, s1, s2, 65536 - x, x, n);
}
}
/* RGBA */
@ -277,7 +287,11 @@ vs_scanline_merge_linear_RGBA (uint8_t * dest, uint8_t * src1, uint8_t * src2,
{
uint32_t value = x >> 8;
orc_merge_linear_u8 (dest, src1, src2, 256 - value, value, n * 4);
if (value == 0) {
memcpy (dest, src1, n * 4);
} else {
orc_merge_linear_u8 (dest, src1, src2, 256 - value, value, n * 4);
}
}
@ -358,7 +372,11 @@ vs_scanline_merge_linear_RGB (uint8_t * dest, uint8_t * src1, uint8_t * src2,
{
uint32_t value = x >> 8;
orc_merge_linear_u8 (dest, src1, src2, 256 - value, value, n * 3);
if (value == 0) {
memcpy (dest, src1, n * 3);
} else {
orc_merge_linear_u8 (dest, src1, src2, 256 - value, value, n * 3);
}
}
@ -483,7 +501,11 @@ vs_scanline_merge_linear_YUYV (uint8_t * dest, uint8_t * src1, uint8_t * src2,
int quads = (n + 1) / 2;
uint32_t value = x >> 8;
orc_merge_linear_u8 (dest, src1, src2, 256 - value, value, quads * 4);
if (value == 0) {
memcpy (dest, src1, quads * 4);
} else {
orc_merge_linear_u8 (dest, src1, src2, 256 - value, value, quads * 4);
}
}
@ -608,7 +630,11 @@ vs_scanline_merge_linear_UYVY (uint8_t * dest, uint8_t * src1,
int quads = (n + 1) / 2;
uint32_t value = x >> 8;
orc_merge_linear_u8 (dest, src1, src2, 256 - value, value, quads * 4);
if (value == 4) {
memcpy (dest, src1, quads * 4);
} else {
orc_merge_linear_u8 (dest, src1, src2, 256 - value, value, quads * 4);
}
}