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Commit 251f0534b74b ("qcam: viewfinder_gl: Take color space into account
for YUV rendering") introduced compilation failures in the YUV
semi-planar and planar fragment shaders due to a bad copy & paste. Fix
it.
Fixes: 251f0534b74b ("qcam: viewfinder_gl: Take color space into account for YUV rendering")
Reported-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
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Update the YUV shaders and the viewfinder_gl to correctly take the
Y'CbCr encoding and the quantization range into account when rendering
YUV formats to RGB. Support for the primaries and transfer function will
be added in a subsequent step.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Kunal Agarwal <kunalagarwal1072002@gmail.com>
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The GL_RG and GL_RED texture formats are not supported in OpenGL ES
prior to 3.0. In order to be compatible with OpenGL ES 2.0, use
GL_LUMINANCE_ALPHA and GL_LUMINANCE instead. The shader code needs to be
updated accordingly for GL_RG, as the second component is now stored in
the alpha component instead of the green component. Usage of the red
component is fine, the luminance value is stored in the red, green and
blue components.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org>
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Use macros to select the U and V pattern, to avoid code duplication
between the two semi-planar shaders.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
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