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megapixels
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First pass of 10 bits quick debayer

This commit is contained in:
Martijn Braam 2020-11-11 17:17:29 +01:00
parent 89953d1c11
commit 0de093b62c
1 changed files with 37 additions and 1 deletions
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38
quickpreview.c
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@ -40,36 +40,72 @@ void quick_debayer(const uint8_t *source, uint8_t *destination,
uint32_t pix_fmt, int width, int height, int skip,
int blacklevel)
{
int byteskip = 2 * skip;
int fragmentsize = 4;
int byteskip = fragmentsize * skip;
int input_size = width * height;
int i = 0, j = 0;
int row_left = width;
switch (pix_fmt) {
case V4L2_PIX_FMT_SBGGR8:
case V4L2_PIX_FMT_SGBRG8:
case V4L2_PIX_FMT_SGRBG8:
case V4L2_PIX_FMT_SRGGB8:
break;
case V4L2_PIX_FMT_SBGGR10P:
case V4L2_PIX_FMT_SGBRG10P:
case V4L2_PIX_FMT_SGRBG10P:
case V4L2_PIX_FMT_SRGGB10P:
fragmentsize = 4;
byteskip = fragmentsize * skip;
break;
}
do {
uint8_t b0 = srgb[source[i] - blacklevel];
uint8_t b1 = srgb[source[i + 1] - blacklevel];
uint8_t b2 = srgb[source[i + width + 1] - blacklevel];
uint8_t b3 = srgb[source[i + 2] - blacklevel];
uint8_t b4 = srgb[source[i + 3] - blacklevel];
uint8_t b5 = srgb[source[i + width + 2] - blacklevel];
switch (pix_fmt) {
case V4L2_PIX_FMT_SBGGR8:
case V4L2_PIX_FMT_SBGGR10P:
quick_debayer_set_dst(&destination[j],
b2, b1, b0);
j += 3;
quick_debayer_set_dst(&destination[j],
b5, b4, b3);
break;
case V4L2_PIX_FMT_SGBRG8:
case V4L2_PIX_FMT_SGBRG10P:
quick_debayer_set_dst(&destination[j],
b1, b2, b0);
j += 3;
quick_debayer_set_dst(&destination[j],
b4, b4, b3);
break;
case V4L2_PIX_FMT_SGRBG8:
case V4L2_PIX_FMT_SGRBG10P:
quick_debayer_set_dst(&destination[j],
b1, b0, b2);
j += 3;
quick_debayer_set_dst(&destination[j],
b4, b3, b5);
break;
case V4L2_PIX_FMT_SRGGB8:
case V4L2_PIX_FMT_SRGGB10P:
/* fall through */
default:
quick_debayer_set_dst(&destination[j],
b0, b1, b2);
j += 3;
quick_debayer_set_dst(&destination[j],
b3, b4, b5);
break;
}
j += 3;
i = i + byteskip;