pmaports/temp/libcamera/0004-libcamera-simple-Skip-hwISP-formats-if-swISP-is-acti.patch
Robert Mader f77dc643c9
temp/libcamera: fork for temporary downstream patches (MR 5162)
which are probably too experimental to ask Alpine to carry them, while being
very helpful for devices that pmOS targets. The explicit goal is to help
Libcamera development and drop the fork again.

For the dma heaps permissions see the ongoing debate in
https://lore.kernel.org/all/bb372250-e8b8-4458-bc99-dd8365b06991@redhat.com/
It's possible that Libcamera will switch to another solution in a future
release or that memory accounting issues around dma heaps will need to
get fixed in the kernel before the permissions can be set by default by
distros.

Regarding `libcamera: simple:` patches:
 - 0001-0003 can likely be dropped once the Libcamera SoftISP gains
   support for raw (bayer) streams passthrough (on top of converting to
   RGB or YUV formats).
 - 0004 will likely be needed until Megi downstream patches for the
   Pinephone get improved/upstreamed and Libcamera adopted accordingly.

With these patches libcamera and pipewire based applications should work
on the Librem5, Pinephone and - hopefully soon - devices like the OP6.

See https://gitlab.com/postmarketOS/pmaports/-/merge_requests/5162 for
more context.
[ci:skip-build]: already built successfully in CI
2024-05-21 20:23:50 +02:00

32 lines
1.4 KiB
Diff

From 0e10f1da5892156dc31445918303dc5eb80f9d0f Mon Sep 17 00:00:00 2001
From: Robert Mader <robert.mader@collabora.com>
Date: Mon, 6 May 2024 21:21:57 +0200
Subject: [PATCH 4/4] libcamera: simple: Skip hwISP formats if swISP is active
On devices like the Pinephone libcamera will advertise support for
formats provided by the HW ISP and the SW ISP at the same time. The
reason why we enable the SW ISP in the first place is, however, that the
HW ISP does not work reliable atm. Thus filter out formats from the HW
ISP when the SW ISP is enabled, to ensure we use the later.
---
src/libcamera/pipeline/simple/simple.cpp | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/src/libcamera/pipeline/simple/simple.cpp b/src/libcamera/pipeline/simple/simple.cpp
index 71a44237..36604a83 100644
--- a/src/libcamera/pipeline/simple/simple.cpp
+++ b/src/libcamera/pipeline/simple/simple.cpp
@@ -652,9 +652,7 @@ void SimpleCameraData::tryPipeline(unsigned int code, const Size &size)
config.outputFormats = swIsp_->formats(pixelFormat);
config.outputSizes = swIsp_->sizes(pixelFormat, format.size);
if (config.outputFormats.empty()) {
- /* Do not use swIsp for unsupported pixelFormat's. */
- config.outputFormats = { pixelFormat };
- config.outputSizes = config.captureSize;
+ continue;
}
} else {
config.outputFormats = { pixelFormat };
--
2.45.1