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path: root/src/qcam/assets/shader/YUV_2_planes.frag
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2022-10-20Move test applications to src/apps/Laurent Pinchart
The cam and qcam test application share code, currently through a crude hack that references the cam source files directly from the qcam meson.build file. To prepare for the introduction of hosting that code in a static library, move all applications to src/apps/. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2022-10-04qcam: Fix YUV planar fragment shadersLaurent Pinchart
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>
2022-09-01qcam: viewfinder_gl: Take color space into account for YUV renderingLaurent Pinchart
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>
2021-08-03qcam: Support OpenGL ES 2.0Laurent Pinchart
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>
2020-10-04qcam: viewfinder_gl: Merge the semi-planar UV and VU shadersLaurent Pinchart
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>