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wayland: Add support for local protocols

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This proved to be helpful for previous protocol experiments, so let's
upstream it. Inspired by the corresponding code in Weston.

Protocols need to be placed in a `protocols` subdirectory and can be
declared in the following way in `meson.build`:
```
['color-management-v1', 'internal' ],
```

Note the `v1` being part of the name.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9186>
This commit is contained in:
Robert Mader 2024-11-13 11:03:30 +01:00 committed by GStreamer Marge Bot
parent 49e53cb09e
commit aee3fae721
1 changed files with 24 additions and 18 deletions
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42
subprojects/gst-plugins-bad/gst-libs/gst/wayland/meson.build
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@ -47,22 +47,28 @@ if use_wayland
protocols_files = []
foreach protodef: protocol_defs
proto_name = protodef.get(0)
proto_stability = protodef.get(1)
if proto_stability == 'stable'
output_base = proto_name
elif proto_stability == 'staging'
proto_version = protodef.get(2)
output_base = f'@proto_name@-@proto_version@'
else
proto_version = protodef.get(2)
output_base = f'@proto_name@-@proto_stability@-@proto_version@'
endif
input = protocols_datadir / proto_stability / proto_name / f'@output_base@.xml'
proto_name = protodef[0]
proto_stability = protodef[1]
protocols_files += [custom_target(f'@output_base@ client header',
input: input,
output: f'@output_base@-client-protocol.h',
if proto_stability == 'internal'
base_file = proto_name
xml_path = 'protocols' / proto_name + '.xml'
elif proto_stability == 'stable'
base_file = proto_name
xml_path = protocols_datadir / 'stable' / proto_name / (base_file + '.xml')
elif proto_stability == 'unstable'
base_file = '@0@-unstable-@1@'.format(proto_name, protodef[2])
xml_path = protocols_datadir / 'unstable' / proto_name / (base_file + '.xml')
elif proto_stability == 'staging'
base_file = '@0@-@1@'.format(proto_name, protodef[2])
xml_path = protocols_datadir / 'staging' / proto_name / (base_file + '.xml')
else
error('Unsupported protocol stability')
endif
protocols_files += [custom_target(f'@base_file@ client header',
input: xml_path,
output: f'@base_file@-client-protocol.h',
command: [
wl_scanner,
'client-header',
@ -70,9 +76,9 @@ if use_wayland
],
)]
protocols_files += [custom_target(f'@output_base@ source',
input: input,
output: f'@output_base@-protocol.c',
protocols_files += [custom_target(f'@base_file@ source',
input: xml_path,
output: f'@base_file@-protocol.c',
command: [
wl_scanner,
'private-code',