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process_pipeline: Skip padding when repacking 10-bit image (MR 13)

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This commit is contained in:
Yassine Oudjana
2022-02-24 13:38:33 +04:00
committed by Martijn Braam
parent 81859e54e7
commit cf0f02228a
1 changed files with 16 additions and 8 deletions
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24
src/process_pipeline.c
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@@ -180,6 +180,11 @@ static void
repack_image_sequencial(const uint8_t *src_buf, uint8_t *dst_buf, MPMode *mode)
{
uint16_t pixels[4];
uint32_t row_length =
mp_pixel_format_width_to_bytes(mode->pixel_format, mode->width);
uint32_t padding_bytes =
mp_pixel_format_width_to_padding(mode->pixel_format, mode->width);
size_t si = 0;
// Image data must be 10-bit packed
assert(mp_pixel_format_bits_per_pixel(mode->pixel_format) == 10);
@@ -190,15 +195,16 @@ repack_image_sequencial(const uint8_t *src_buf, uint8_t *dst_buf, MPMode *mode)
* src_buf: 11111111 22222222 33333333 44444444 11223344 ...
* dst_buf: 11111111 11222222 22223333 33333344 44444444 ...
*/
for (size_t i = 0;
i < mp_pixel_format_width_to_bytes(mode->pixel_format, mode->width) *
mode->height;
i += 5) {
for (size_t i = 0; i < row_length * mode->height; i += 5) {
// Skip padding bytes in source buffer
if (i && i % row_length == 0)
si += padding_bytes;
/* Extract pixels from packed sensor format */
pixels[0] = (src_buf[i] << 2) | (src_buf[i + 4] >> 6);
pixels[1] = (src_buf[i + 1] << 2) | (src_buf[i + 4] >> 4 & 0x03);
pixels[2] = (src_buf[i + 2] << 2) | (src_buf[i + 4] >> 2 & 0x03);
pixels[3] = (src_buf[i + 3] << 2) | (src_buf[i + 4] & 0x03);
pixels[0] = (src_buf[si] << 2) | (src_buf[si + 4] >> 6);
pixels[1] = (src_buf[si + 1] << 2) | (src_buf[si + 4] >> 4 & 0x03);
pixels[2] = (src_buf[si + 2] << 2) | (src_buf[si + 4] >> 2 & 0x03);
pixels[3] = (src_buf[si + 3] << 2) | (src_buf[si + 4] & 0x03);
/* Pack pixels into sequencial format */
dst_buf[i] = (pixels[0] >> 2 & 0xff);
@@ -206,6 +212,8 @@ repack_image_sequencial(const uint8_t *src_buf, uint8_t *dst_buf, MPMode *mode)
dst_buf[i + 2] = (pixels[1] << 4 & 0xff) | (pixels[2] >> 6 & 0x0f);
dst_buf[i + 3] = (pixels[2] << 2 & 0xff) | (pixels[3] >> 8 & 0x03);
dst_buf[i + 4] = (pixels[3] & 0xff);
si += 5;
}
}