kernel: sun4i_drm: Add alpha-related tests

Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com>

kernel/sun4i_drm_kmsxx/MostBottomAlpha_1.py

@@ -0,0 +1,74 @@
+#!/usr/bin/python3
+
+# SPDX-FileCopyrightText: https://github.com/tomba/kmsxx project authors
+# SPDX-FileCopyrightText: 2022 Roman Stratiienko <r.stratiienko@gmail.com>
+# SPDX-License-Identifier: MPL-2.0
+
+import pykms
+import time
+import numpy as np
+
+card = pykms.Card()
+res = pykms.ResourceManager(card)
+conn = res.reserve_connector('')
+crtc = res.reserve_crtc(conn)
+
+format = pykms.PixelFormat.ARGB8888
+magenta = pykms.RGB(255, 0, 255)
+grey = pykms.RGB(128, 255, 255, 255)
+
+card.disable_planes()
+
+mode = conn.get_default_mode()
+modeb = mode.to_blob(card)
+req = pykms.AtomicReq(card)
+req.add(conn, "CRTC_ID", crtc.id)
+req.add(crtc, {"ACTIVE": 1,
+               "MODE_ID": modeb.id})
+r = req.commit_sync(allow_modeset = True)
+assert r == 0, "Initial commit failed: %d" % r
+
+planes=[]
+
+max_planes=16
+
+for i in range(max_planes):
+    p = res.reserve_generic_plane(crtc)
+    if p == None:
+        break
+    planes.append(p)
+
+fbX = int(mode.hdisplay / len(planes))
+fbY = int(mode.vdisplay)
+
+fb = pykms.DumbFramebuffer(card, fbX, fbY, format);
+pykms.draw_rect(fb, 0, 0, int(fbX), int(fbY), grey)
+pykms.draw_rect(fb, int(fbX*0.1), int(fbY*0.1), int(fbX*0.8), int(fbY*0.8), magenta)
+
+def PlaneAlphaTest(plane_index):
+	print("Plane {} is the most bottom".format(plane_index))
+	req = pykms.AtomicReq(card)
+
+	for p in range(0,len(planes)):
+		req.add_plane(planes[p], fb, crtc, dst=(fbX * p, 0, fbX, fbY), zpos=(p-plane_index)%len(planes))
+	r = req.commit_sync()
+
+	for a in np.linspace(65535, 0, num=100):
+		req = pykms.AtomicReq(card)
+
+		for p in range(0,len(planes)):
+			req.add(planes[p], {"alpha": int(a) })
+
+		r = req.commit_sync()
+		assert r == 0, "Plane commit failed: %d" % r
+
+	print("Press enter to continue")
+	input()
+
+	req = pykms.AtomicReq(card)
+	for p in range(0,len(planes)):
+		req.add(planes[p], {"alpha": 65535 })
+	r = req.commit_sync()
+
+for i in range(0, len(planes)):
+	PlaneAlphaTest(i)

kernel/sun4i_drm_kmsxx/OverlappingAlpha_1.py

@@ -0,0 +1,78 @@
+#!/usr/bin/python3
+
+# SPDX-FileCopyrightText: https://github.com/tomba/kmsxx project authors
+# SPDX-FileCopyrightText: 2022 Roman Stratiienko <r.stratiienko@gmail.com>
+# SPDX-License-Identifier: MPL-2.0
+
+import pykms
+import time
+import numpy as np
+
+card = pykms.Card()
+res = pykms.ResourceManager(card)
+conn = res.reserve_connector('')
+crtc = res.reserve_crtc(conn)
+
+format = pykms.PixelFormat.ARGB8888
+magenta = pykms.RGB(255, 255, 0, 255)
+magenta_tr = pykms.RGB(128, 128, 0, 128)
+
+grey = pykms.RGB(128, 128, 128)
+grey_tr = pykms.RGB(128, 128, 128, 128)
+
+card.disable_planes()
+
+mode = conn.get_default_mode()
+modeb = mode.to_blob(card)
+req = pykms.AtomicReq(card)
+req.add(conn, "CRTC_ID", crtc.id)
+req.add(crtc, {"ACTIVE": 1,
+               "MODE_ID": modeb.id})
+r = req.commit_sync(allow_modeset = True)
+assert r == 0, "Initial commit failed: %d" % r
+
+planes=[]
+
+max_planes=16
+
+for i in range(max_planes):
+    p = res.reserve_generic_plane(crtc)
+    if p == None:
+        break
+    planes.append(p)
+
+fbX = int(mode.hdisplay / len(planes))
+fbY = int(mode.vdisplay)
+
+fb = pykms.DumbFramebuffer(card, fbX, fbY, format);
+pykms.draw_rect(fb, 0, 0, int(fbX), int(fbY), magenta)
+pykms.draw_rect(fb, 0, int(fbY/2), int(fbX), int(fbY/2), magenta_tr)
+
+def PlaneAlphaTest(plane_index):
+	print("Plane {} is the most bottom".format(plane_index))
+	req = pykms.AtomicReq(card)
+
+	for p in range(0,len(planes)):
+		req.add_plane(planes[p], fb, crtc, dst=(0, 0, fbX*(p+1), fbY), zpos=(p-plane_index)%len(planes))
+	r = req.commit_sync()
+
+	for a in np.linspace(65535, 32768, num=100):
+		req = pykms.AtomicReq(card)
+
+		for p in range(0,len(planes)):
+			req.add(planes[p], {"alpha": int(a) })
+
+		r = req.commit_sync()
+		assert r == 0, "Plane commit failed: %d" % r
+
+	print("Press enter to continue")
+	input()
+
+	req = pykms.AtomicReq(card)
+	for p in range(0,len(planes)):
+		req.add(planes[p], {"alpha": 65535 })
+	r = req.commit_sync()
+
+
+for i in range(0, len(planes)):
+	PlaneAlphaTest(i)

kernel/sun4i_drm_kmsxx/README.md

@@ -0,0 +1,21 @@
+# drmkms-python-tests
+DRM/KMS manual validation scripts
+
+## Motivation
+Android UI performance relies on DRM/KMS quality a lot.
+
+Mainline kernel drivers still have bugs that make FULL DRM/KMS support impossible
+and we have to limit or disable using HW overlay planes for such drivers/boards.
+
+In addition to that some of the kernel DRM drivers do not expose full hardware capabilities.
+Improving such drivers is much faster when easy-to-run test procedures are available.
+
+Also it is nice to have the ability to test any change in driver code for regression with existing tests.
+
+## Running
+Scripts depends on kmsxx library: https://github.com/tomba/kmsxx
+
+## Contributing
+Contributions are welcome.
+
+Feel free to add any new / fix existing tests by opening a pull request.