[libcamera-devel,v4,2/5] ipa: raspberrypi: histogram: Add a constructor for an empty histogram
diff mbox series

Message ID 20230203091734.22803-3-naush@raspberrypi.com
State Accepted
Headers show
Series
  • Raspberry Pi: Generalise statistics
Related show

Commit Message

Naushir Patuck Feb. 3, 2023, 9:17 a.m. UTC 
Add a default constructor to the RPiController::Histogram class that creates
an empty histogram. Since this is a cumulative histogram, push a value of 0 into
the first (and only) bin to signify this.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: David Plowman <david.plowman@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
---
 src/ipa/raspberrypi/controller/histogram.h | 5 +++++
 1 file changed, 5 insertions(+)

Patch
diff mbox series 

diff --git a/src/ipa/raspberrypi/controller/histogram.h b/src/ipa/raspberrypi/controller/histogram.h
index 66a68b087964..6b3e3a9e68e4 100644
--- a/src/ipa/raspberrypi/controller/histogram.h
+++ b/src/ipa/raspberrypi/controller/histogram.h
@@ -20,6 +20,11 @@  namespace RPiController {
 class Histogram
 {
 public:
+	Histogram()
+	{
+		cumulative_.push_back(0);
+	}
+
 	template<typename T> Histogram(T *histogram, int num)
 	{
 		assert(num);