99fd2e669c
Introduce an eGL base helper class which provides an eGL context based on a passed width and height. The initGLContext function could be overloaded to provide an interface to a real display. A set of helper functions is provided to compile and link GLSL shaders. linkShaderProgram currently compiles vertex/fragment pairs but could be overloaded or passed a parameter to link a compute shader instead. Breaking the eGL interface away from debayering - allows to use the eGL context inside of a dma-buf heap cleanly, reuse that context inside of a debayer layer and conceivably reuse the context in a multi-stage shader pass. Small note the image_attrs[] array doesn't pass checkstyle.py however the elements of the array are in pairs. Acked-by: Kieran Bingham <kieran.bingham@ideasonboard.com> [bod: Takes fix from Hans for constructor stride bpp] [bod: Drops eglClientWaitSync in favour of glFinish Robert/Milan] Co-developed-by: Hans de Goede <johannes.goede@oss.qualcomm.com> Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com> Co-developed-by: Milan Zamazal <mzamazal@redhat.com> Signed-off-by: Milan Zamazal <mzamazal@redhat.com> Reviewed-by: Robert Mader <robert.mader@collabora.com> Tested-by: Robert Mader <robert.mader@collabora.com> Tested-by: Hans de Goede <johannes.goede@oss.qualcomm.com> # ThinkPad T14s gen 6 (arm64) ov02c10 + X1c gen 12 ov08x40 Tested-by: Kieran Bingham <kieran.bingham@ideasonboard.com> # Lenovo X13s Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>