From ee5b07e558b951333acbcd0e87207e5f33daa2c2 Mon Sep 17 00:00:00 2001
From: Joao Carreira <jfmcarreira@gmail.com>
Date: Tue, 6 Feb 2018 01:40:54 +0000
Subject: [PATCH] Fix histogram with frames with alpha

---
 app/HistogramWidget.cpp | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/app/HistogramWidget.cpp b/app/HistogramWidget.cpp
index 18414a0..b8c46e3 100644
--- a/app/HistogramWidget.cpp
+++ b/app/HistogramWidget.cpp
@@ -382,7 +382,19 @@ Void HistogramWidget::stopHistogramComputation()
 Void HistogramWidget::updateData( PlaYUVerFrame* pcFrame, PlaYUVerFrame* pcFrameSelection )
 {
   d->imageBits = pcFrame->getBitsPel();
-  d->imageColorSpace = pcFrame->getColorSpace();
+  switch( pcFrame->getColorSpace() )
+  {
+  case PlaYUVerPixel::COLOR_YUV:
+  case PlaYUVerPixel::COLOR_GRAY:
+    d->imageColorSpace = 0;
+    break;
+  case PlaYUVerPixel::COLOR_RGB:
+  case PlaYUVerPixel::COLOR_RGBA:
+    d->imageColorSpace = 0;
+    break;
+  default:
+    d->imageColorSpace = 0;
+  }
   d->imageChannels = pcFrame->getNumberChannels();
 
   // We are deleting the histogram data,