[libcamera-devel] [PATCH v5 8/9] utils: ipc: Allow the skipHeader attribute on enums
Paul Elder
paul.elder at ideasonboard.com
Tue Oct 11 12:58:58 CEST 2022
Currently, enums that are passed between pipeline handlers and their IPA
must be defined in a mojom file. However, there is a use case for
enum/flags to be defined in a C++ header, such that the enum can be used
in a component other than the pipeline handler and its IPA.
To support this, add support for the skipHeader attribute for enums.
Like structs, it is only allowed in core.mojom.
Signed-off-by: Paul Elder <paul.elder at ideasonboard.com>
---
New in v5
---
include/libcamera/ipa/core.mojom | 4 +++-
include/libcamera/ipa/ipa_interface.h | 4 ++--
.../generators/libcamera_templates/core_ipa_interface.h.tmpl | 2 +-
utils/ipc/generators/mojom_libcamera_generator.py | 2 +-
4 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/include/libcamera/ipa/core.mojom b/include/libcamera/ipa/core.mojom
index ef28ff2d..1ff674b0 100644
--- a/include/libcamera/ipa/core.mojom
+++ b/include/libcamera/ipa/core.mojom
@@ -14,7 +14,7 @@ module libcamera;
* - structs
*
* Attributes:
- * - skipHeader - structs only, and only in core.mojom
+ * - skipHeader - allowed only for structs and enums in core.mojom
* - Do not generate a C++ definition for the structure
* - Any type used in a mojom interface definition must have a corresponding
* definition in a mojom file for the code generator to accept it, except
@@ -52,6 +52,8 @@ module libcamera;
* then the type definition in the core.mojom file should have the
* [skipHeader] attribute only
* - A (de)serializer will be generated for the type
+ * - enums that are defined in a libcamera C++ header also fall in this
+ * category
* - If a type definition has [skipHeader], then the header where the type is
* defined must be included in ipa_interface.h
* - Types that are solely used as array/map members do not require a mojom
diff --git a/include/libcamera/ipa/ipa_interface.h b/include/libcamera/ipa/ipa_interface.h
index 8afcfe21..8884f0ed 100644
--- a/include/libcamera/ipa/ipa_interface.h
+++ b/include/libcamera/ipa/ipa_interface.h
@@ -23,8 +23,8 @@
namespace libcamera {
/*
- * Structs that are defined in core.mojom and have the skipHeader tag must be
- * #included here.
+ * Structs and enums that are defined in core.mojom that have the skipHeader
+ * tag must be #included here.
*/
class IPAInterface
diff --git a/utils/ipc/generators/libcamera_templates/core_ipa_interface.h.tmpl b/utils/ipc/generators/libcamera_templates/core_ipa_interface.h.tmpl
index a565b59a..c60b99b8 100644
--- a/utils/ipc/generators/libcamera_templates/core_ipa_interface.h.tmpl
+++ b/utils/ipc/generators/libcamera_templates/core_ipa_interface.h.tmpl
@@ -26,7 +26,7 @@ namespace libcamera {
static const {{const.kind|name}} {{const.mojom_name}} = {{const.value}};
{% endfor %}
-{% for enum in enums %}
+{% for enum in enums_gen_header %}
{{funcs.define_enum(enum)}}
{% endfor %}
diff --git a/utils/ipc/generators/mojom_libcamera_generator.py b/utils/ipc/generators/mojom_libcamera_generator.py
index 6c176aba..64987ccd 100644
--- a/utils/ipc/generators/mojom_libcamera_generator.py
+++ b/utils/ipc/generators/mojom_libcamera_generator.py
@@ -483,7 +483,7 @@ class Generator(generator.Generator):
def _GetJinjaExportsForCore(self):
return {
'consts': self.module.constants,
- 'enums': self.module.enums,
+ 'enums_gen_header': [x for x in self.module.enums if x.attributes is None or 'skipHeader' not in x.attributes],
'has_array': len([x for x in self.module.kinds.keys() if x[0] == 'a']) > 0,
'has_map': len([x for x in self.module.kinds.keys() if x[0] == 'm']) > 0,
'structs_gen_header': [x for x in self.module.structs if x.attributes is None or 'skipHeader' not in x.attributes],
--
2.30.2
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