utils: codegen: gen-controls.py: Convert to jinja2 templates

Jinja2 templates help separate the logic related to the template from
the generation of the data. The python code becomes much clearer as a
result.

As an added bonus, we can use a single template file for both controls
and properties.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>

3 files changed, 34 insertions, 44 deletions

diff --git a/include/libcamera/control_ids.h.in b/include/libcamera/control_ids.h.in
index 293ba966..858ef872 100644
--- a/include/libcamera/control_ids.h.in
+++ b/include/libcamera/control_ids.h.in
@@ -2,7 +2,7 @@
 /*
  * Copyright (C) 2019, Google Inc.
  *
- * Control ID list
+ * {{mode|capitalize}} ID list
  *
  * This file is auto-generated. Do not edit.
  */
@@ -18,18 +18,42 @@
 
 namespace libcamera {
 
-namespace controls {
+namespace {{mode}} {
 
-enum {
-${ids}
-};
+extern const ControlIdMap {{mode}};
+
+{%- for vendor, ctrls in controls -%}
 
-${controls}
+{% if vendor != 'libcamera' %}
+namespace {{vendor}} {
 
-extern const ControlIdMap controls;
+#define LIBCAMERA_HAS_{{vendor|upper}}_VENDOR_{{mode|upper}}
+{%- endif %}
 
-${vendor_controls}
+enum {
+{%- for ctrl in ctrls %}
+	{{ctrl.name|snake_case|upper}} = {{ctrl.id}},
+{%- endfor %}
+};
 
-} /* namespace controls */
+{% for ctrl in ctrls -%}
+{% if ctrl.is_enum -%}
+enum {{ctrl.name}}Enum {
+{%- for enum in ctrl.enum_values %}
+	{{enum.name}} = {{enum.value}},
+{%- endfor %}
+};
+extern const std::array<const ControlValue, {{ctrl.enum_values_count}}> {{ctrl.name}}Values;
+extern const std::map<std::string, {{ctrl.type}}> {{ctrl.name}}NameValueMap;
+{% endif -%}
+extern const Control<{{ctrl.type}}> {{ctrl.name}};
+{% endfor -%}
+
+{% if vendor != 'libcamera' %}
+} /* namespace {{vendor}} */
+{% endif -%}
+
+{% endfor %}
+} /* namespace {{mode}} */
 
 } /* namespace libcamera */
diff --git a/include/libcamera/meson.build b/include/libcamera/meson.build
index 87b9a941..d90a8615 100644
--- a/include/libcamera/meson.build
+++ b/include/libcamera/meson.build
@@ -80,7 +80,7 @@ foreach mode, entry : controls_map
         properties_files_names += files_list
     endif
 
-    template_file = files(outfile + '.in')
+    template_file = files('control_ids.h.in')
     ranges_file = files('../../src/libcamera/control_ranges.yaml')
     control_headers += custom_target(header + '_h',
                                      input : input_files,
diff --git a/include/libcamera/property_ids.h.in b/include/libcamera/property_ids.h.in
deleted file mode 100644
index e6edabca..00000000
--- a/include/libcamera/property_ids.h.in
+++ /dev/null
@@ -1,34 +0,0 @@
-/* SPDX-License-Identifier: LGPL-2.1-or-later */
-/*
- * Copyright (C) 2019, Google Inc.
- *
- * Property ID list
- *
- * This file is auto-generated. Do not edit.
- */
-
-#pragma once
-
-#include <map>
-#include <stdint.h>
-#include <string>
-
-#include <libcamera/controls.h>
-
-namespace libcamera {
-
-namespace properties {
-
-enum {
-${ids}
-};
-
-${controls}
-
-extern const ControlIdMap properties;
-
-${vendor_controls}
-
-} /* namespace properties */
-
-} /* namespace libcamera */