Details
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Epic
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Resolution: Done
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P2: Important
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None
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None
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Hardware Layer Experiments
Description
Focus on eglfs and DRM (just basic overlay planes at first in eglfs_kms (GBM), then maybe add dmabuf import in the second phase; maybe something for EGLStream/EGLLayer for NVIDIA later). Expose a semi-private, eglfs-specific layer (plane) management interface via platformheaders and QEglFSFunctions, and iterate in order to get an idea for what is sensible for public APIs in future Qt versions.
Note: QTBUG-58690 is expected to provide an independent solution for Renesas systems, introducing a eglfs_kms_vsp2 backend that offers dmaBuf import and composing those via V4L/VSP.
Attachments
Issue Links
- relates to
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QTBUG-58690 Proof of concept: VSP composition mixed with OpenGL drawing
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- Closed
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1.
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Modesetting improvements |
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Closed | Laszlo Agocs |
2.
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Enumerate and expose overlay planes from QKmsDevice (kmsconvenience) |
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Closed | Laszlo Agocs |
3.
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Overlay plane PoC with legacy API |
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Closed | Laszlo Agocs |
4.
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Atomic PoC |
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Closed | Laszlo Agocs |
5.
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Atomic modesetting (eglfs_kms) |
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Closed | Laszlo Agocs |
6.
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Overlay plane support in atomic eglfs_kms |
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Closed | Laszlo Agocs |
Gerrit Reviews
| For Gerrit Dashboard: QTBUG-62132 | ||||||
|---|---|---|---|---|---|---|
| # | Subject | Branch | Project | Status | CR | V |
| 204820,1 | kms: Enable universal plane reporting | dev | qt/qtbase | Status: ABANDONED | 0 | 0 |
| 204868,9 | kms: Discover all available planes | dev | qt/qtbase | Status: MERGED | +2 | 0 |
| 204875,8 | kms: Rename the plane index workaround vars appropriately | dev | qt/qtbase | Status: MERGED | +2 | 0 |
| 204887,8 | kms: Fix crtc allocation logic | dev | qt/qtbase | Status: MERGED | +2 | 0 |
| 204931,3 | eglfs_kms: Move out window subclass from integration | dev | qt/qtbase | Status: MERGED | +2 | 0 |
| 204980,3 | eglfs: Allow forwarding platformFunction() to backends | dev | qt/qtbase | Status: MERGED | +2 | 0 |
| 204999,3 | eglfs: Forward nativeRes.ForInteg.() to backends | dev | qt/qtbase | Status: MERGED | +2 | 0 |
| 205000,5 | WIP: Add manual test for eglfs_kms plane stuff | dev | qt/qtbase | Status: DEFERRED | -2 | 0 |
| 205010,4 | eglfs_kms: Remove unused virtuals and move flip callback | dev | qt/qtbase | Status: MERGED | +2 | 0 |