From 33ee44dc16dc7e6fd15926d76a10545601a20613 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Sun, 6 Oct 2019 09:43:07 +0300
Subject: libcamera: control_ids: Generate map of all supported controls
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In order to deserialise a ControlList, we will need to lookup ControlId
instances based on their numerical ID. Generate a global map from the
controls definitions to support such a lookup.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Tested-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
---
 include/libcamera/control_ids.h.in | 2 ++
 include/libcamera/controls.h       | 1 +
 2 files changed, 3 insertions(+)

(limited to 'include')

diff --git a/include/libcamera/control_ids.h.in b/include/libcamera/control_ids.h.in
index 1d0bc791..6ff0e418 100644
--- a/include/libcamera/control_ids.h.in
+++ b/include/libcamera/control_ids.h.in
@@ -24,6 +24,8 @@ ${ids}
 
 ${controls}
 
+extern const ControlIdMap controls;
+
 } /* namespace controls */
 
 } /* namespace libcamera */
diff --git a/include/libcamera/controls.h b/include/libcamera/controls.h
index 90426753..d8acd800 100644
--- a/include/libcamera/controls.h
+++ b/include/libcamera/controls.h
@@ -111,6 +111,7 @@ private:
 	ControlValue max_;
 };
 
+using ControlIdMap = std::unordered_map<unsigned int, const ControlId *>;
 using ControlInfoMap = std::unordered_map<const ControlId *, ControlRange>;
 
 class ControlList
-- 
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