| Message ID | 20240628213535.6906-3-laurent.pinchart@ideasonboard.com |
|---|---|
| State | New |
| Headers | show |
| Series |
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| Related | show |
Hi Laurent, Thank you for the patch. On 29/06/24 3:05 am, Laurent Pinchart wrote: > The 16-bit padded raw 10 and raw 12 formats are stored in memory in > little endian order, regardless of the machine's endianness. Read pixel > data as uint8_t values and hardcode bit shifting to little endian to fix > scanline packing. > > Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Umang Jain <umang.jain@ideasonboard.com> > --- > src/apps/common/dng_writer.cpp | 24 ++++++++++++------------ > 1 file changed, 12 insertions(+), 12 deletions(-) > > diff --git a/src/apps/common/dng_writer.cpp b/src/apps/common/dng_writer.cpp > index 50db5eb33c83..355433b08d68 100644 > --- a/src/apps/common/dng_writer.cpp > +++ b/src/apps/common/dng_writer.cpp > @@ -139,29 +139,29 @@ void packScanlineRaw8(void *output, const void *input, unsigned int width) > > void packScanlineRaw10(void *output, const void *input, unsigned int width) > { > - const uint16_t *in = static_cast<const uint16_t *>(input); > + const uint8_t *in = static_cast<const uint8_t *>(input); > uint8_t *out = static_cast<uint8_t *>(output); > > for (unsigned int i = 0; i < width; i += 4) { > - *out++ = (in[0] & 0x3fc) >> 2; > - *out++ = (in[0] & 0x003) << 6 | (in[1] & 0x3f0) >> 4; > - *out++ = (in[1] & 0x00f) << 4 | (in[2] & 0x3c0) >> 6; > - *out++ = (in[2] & 0x03f) << 2 | (in[3] & 0x300) >> 8; > - *out++ = (in[3] & 0x0ff); > - in += 4; > + *out++ = in[1] << 6 | in[0] >> 2; > + *out++ = in[0] << 6 | (in[3] & 0x03) << 4 | in[2] >> 4; > + *out++ = in[2] << 4 | (in[5] & 0x03) << 2 | in[4] >> 6; > + *out++ = in[4] << 2 | (in[7] & 0x03) << 0; > + *out++ = in[6]; > + in += 8; > } > } > > void packScanlineRaw12(void *output, const void *input, unsigned int width) > { > - const uint16_t *in = static_cast<const uint16_t *>(input); > + const uint8_t *in = static_cast<const uint8_t *>(input); > uint8_t *out = static_cast<uint8_t *>(output); > > for (unsigned int i = 0; i < width; i += 2) { > - *out++ = (in[0] & 0xff0) >> 4; > - *out++ = (in[0] & 0x00f) << 4 | (in[1] & 0xf00) >> 8; > - *out++ = (in[1] & 0x0ff); > - in += 2; > + *out++ = in[1] << 4 | in[0] >> 4; > + *out++ = in[0] << 4 | (in[3] & 0x0f); > + *out++ = in[2]; > + in += 4; > } > } >
Hi Laurent, Thank you for the patch. On Sat, Jun 29, 2024 at 12:35:35AM +0300, Laurent Pinchart wrote: > The 16-bit padded raw 10 and raw 12 formats are stored in memory in > little endian order, regardless of the machine's endianness. Read pixel > data as uint8_t values and hardcode bit shifting to little endian to fix > scanline packing. > > Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Yep, now it's correct :-) Reviewed-by: Stefan Klug <stefan.klug@ideasonboard.com> > --- > src/apps/common/dng_writer.cpp | 24 ++++++++++++------------ > 1 file changed, 12 insertions(+), 12 deletions(-) > > diff --git a/src/apps/common/dng_writer.cpp b/src/apps/common/dng_writer.cpp > index 50db5eb33c83..355433b08d68 100644 > --- a/src/apps/common/dng_writer.cpp > +++ b/src/apps/common/dng_writer.cpp > @@ -139,29 +139,29 @@ void packScanlineRaw8(void *output, const void *input, unsigned int width) > > void packScanlineRaw10(void *output, const void *input, unsigned int width) > { > - const uint16_t *in = static_cast<const uint16_t *>(input); > + const uint8_t *in = static_cast<const uint8_t *>(input); > uint8_t *out = static_cast<uint8_t *>(output); > > for (unsigned int i = 0; i < width; i += 4) { > - *out++ = (in[0] & 0x3fc) >> 2; > - *out++ = (in[0] & 0x003) << 6 | (in[1] & 0x3f0) >> 4; > - *out++ = (in[1] & 0x00f) << 4 | (in[2] & 0x3c0) >> 6; > - *out++ = (in[2] & 0x03f) << 2 | (in[3] & 0x300) >> 8; > - *out++ = (in[3] & 0x0ff); > - in += 4; > + *out++ = in[1] << 6 | in[0] >> 2; > + *out++ = in[0] << 6 | (in[3] & 0x03) << 4 | in[2] >> 4; > + *out++ = in[2] << 4 | (in[5] & 0x03) << 2 | in[4] >> 6; > + *out++ = in[4] << 2 | (in[7] & 0x03) << 0; > + *out++ = in[6]; > + in += 8; > } > } > > void packScanlineRaw12(void *output, const void *input, unsigned int width) > { > - const uint16_t *in = static_cast<const uint16_t *>(input); > + const uint8_t *in = static_cast<const uint8_t *>(input); > uint8_t *out = static_cast<uint8_t *>(output); > > for (unsigned int i = 0; i < width; i += 2) { > - *out++ = (in[0] & 0xff0) >> 4; > - *out++ = (in[0] & 0x00f) << 4 | (in[1] & 0xf00) >> 8; > - *out++ = (in[1] & 0x0ff); > - in += 2; > + *out++ = in[1] << 4 | in[0] >> 4; > + *out++ = in[0] << 4 | (in[3] & 0x0f); > + *out++ = in[2]; > + in += 4; > } > } > > -- > Regards, > > Laurent Pinchart >
diff --git a/src/apps/common/dng_writer.cpp b/src/apps/common/dng_writer.cpp index 50db5eb33c83..355433b08d68 100644 --- a/src/apps/common/dng_writer.cpp +++ b/src/apps/common/dng_writer.cpp @@ -139,29 +139,29 @@ void packScanlineRaw8(void *output, const void *input, unsigned int width) void packScanlineRaw10(void *output, const void *input, unsigned int width) { - const uint16_t *in = static_cast<const uint16_t *>(input); + const uint8_t *in = static_cast<const uint8_t *>(input); uint8_t *out = static_cast<uint8_t *>(output); for (unsigned int i = 0; i < width; i += 4) { - *out++ = (in[0] & 0x3fc) >> 2; - *out++ = (in[0] & 0x003) << 6 | (in[1] & 0x3f0) >> 4; - *out++ = (in[1] & 0x00f) << 4 | (in[2] & 0x3c0) >> 6; - *out++ = (in[2] & 0x03f) << 2 | (in[3] & 0x300) >> 8; - *out++ = (in[3] & 0x0ff); - in += 4; + *out++ = in[1] << 6 | in[0] >> 2; + *out++ = in[0] << 6 | (in[3] & 0x03) << 4 | in[2] >> 4; + *out++ = in[2] << 4 | (in[5] & 0x03) << 2 | in[4] >> 6; + *out++ = in[4] << 2 | (in[7] & 0x03) << 0; + *out++ = in[6]; + in += 8; } } void packScanlineRaw12(void *output, const void *input, unsigned int width) { - const uint16_t *in = static_cast<const uint16_t *>(input); + const uint8_t *in = static_cast<const uint8_t *>(input); uint8_t *out = static_cast<uint8_t *>(output); for (unsigned int i = 0; i < width; i += 2) { - *out++ = (in[0] & 0xff0) >> 4; - *out++ = (in[0] & 0x00f) << 4 | (in[1] & 0xf00) >> 8; - *out++ = (in[1] & 0x0ff); - in += 2; + *out++ = in[1] << 4 | in[0] >> 4; + *out++ = in[0] << 4 | (in[3] & 0x0f); + *out++ = in[2]; + in += 4; } }
The 16-bit padded raw 10 and raw 12 formats are stored in memory in little endian order, regardless of the machine's endianness. Read pixel data as uint8_t values and hardcode bit shifting to little endian to fix scanline packing. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> --- src/apps/common/dng_writer.cpp | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-)