Quoting Laurent Pinchart (2022-06-10 00:40:28)
> Add a test that enables multiple planes with different alpha values.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> ---
> tests/kms-test-plane-alpha.py | 97 +++++++++++++++++++++++++++++++++++
> 1 file changed, 97 insertions(+)
> create mode 100755 tests/kms-test-plane-alpha.py
>
> diff --git a/tests/kms-test-plane-alpha.py b/tests/kms-test-plane-alpha.py
> new file mode 100755
> index 000000000000..8802bfeae40c
> --- /dev/null
> +++ b/tests/kms-test-plane-alpha.py
> @@ -0,0 +1,97 @@
> +#!/usr/bin/python3
> +# SPDX-License-Identifier: GPL-2.0-or-later
> +# SPDX-FileCopyrightText: 2022 Renesas Electronics Corporation
> +
> +import kmstest
> +import pykms
> +
> +class PlaneAlphaTest(kmstest.KMSTest):
> + """Test composition with multiple planes and alpha channels."""
> +
> + def handle_page_flip(self, frame, time):
> + self.logger.log('Page flip complete')
> +
> + def find_pipeline(self):
> + # Find a CRTC that has multiple planes with a connected connector
> + for connector in self.output_connectors():
> + # Skip disconnected connectors
> + if not connector.connected():
> + continue
> +
> + # Add the connector to the map
> + for crtc in connector.get_possible_crtcs():
> + planes = []
> + for plane in self.card.planes:
> + if plane.supports_crtc(crtc) and plane != crtc.primary_plane:
> + planes.append(plane)
> +
> + if len(planes):
> + return crtc, connector, planes
> +
> + return None, None, None
> +
> + def main(self):
> + self.start('composition with alpha control')
> +
> + crtc, connector, planes = self.find_pipeline()
> + if crtc is None:
> + self.skip('no suitable pipeline')
> + return
> +
> + # Get the default mode
> + try:
> + mode = connector.get_default_mode()
> + except KeyError:
> + self.skip('no mode available')
> + return
> +
> + self.logger.log(f'Testing connector {connector.fullname}, CRTC {crtc.id}, '
> + f'mode {mode.name} with {len(planes)} planes '
> + f'(P: {crtc.primary_plane.id}, O: {[plane.id for plane in planes]})')
> +
> + # Create a frame buffer
> + fb = pykms.DumbFramebuffer(self.card, mode.hdisplay, mode.vdisplay, 'XR24')
> + pykms.draw_test_pattern(fb)
> +
> + # Set the mode with a primary plane
> + ret = self.atomic_crtc_mode_set(crtc, connector, mode, fb)
> + if ret < 0:
> + self.fail(f'atomic mode set failed with {ret}')
> + return
> +
> + req = kmstest.AtomicRequest(self)
> + req.add(crtc.primary_plane, 'alpha', '50%')
Nice. That's better than having to identify the range and set it
explicitly.
> + ret = req.commit_sync(True)
> + if ret < 0:
> + self.fail(f'failed to set alpha for primary plane: {ret}')
> + return
> +
> + self.run(3)
> +
> + # Add all other planes one by one
> + alpha = 20
> + offset = 100
> + for plane in planes:
> + source = kmstest.Rect(0, 0, fb.width, fb.height)
> + destination = kmstest.Rect(offset, offset, fb.width, fb.height)
> + ret = self.atomic_plane_set(plane, crtc, source, destination, fb, alpha=f'{alpha}%')
> + if ret < 0:
> + self.fail(f'atomic plane set failed with {ret}')
> + break
> +
> + self.logger.log(f'Adding plane {plane.id}')
> + self.run(1)
> +
> + if self.flips == 0:
> + self.fail('No page flip registered')
> + break
> +
> + alpha = min(alpha + 20, 100)
Curious to see this. I'll have to spin up a board and display.
Reviewed-by: Kieran Bingham <kieran.bingham@xxxxxxxxxxxxxxxx>
> + offset += 50
> +
> + else:
> + self.success()
> +
> + self.atomic_crtc_disable(crtc)
> +
> +PlaneAlphaTest().execute()
> --
> Regards,
>
> Laurent Pinchart
>
