Merge remote-tracking branch 'origin/5.9' into dev

Change-Id: I4ceccd338a937a2ada231f568ed02c7a87bd6e80

1 files changed, 5 insertions, 1 deletions

diff --git a/src/render/graphicshelpers/graphicscontext.cpp b/src/render/graphicshelpers/graphicscontext.cpp
index 0798d6a0c..582d22b63 100644
--- a/src/render/graphicshelpers/graphicscontext.cpp
+++ b/src/render/graphicshelpers/graphicscontext.cpp
@@ -1828,8 +1828,11 @@ QImage GraphicsContext::readFramebuffer(const QRect &rect)
 
     GLint samples = 0;
     m_gl->functions()->glGetIntegerv(GL_SAMPLES, &samples);
-    if (samples > 0 && !m_glHelper->supportsFeature(GraphicsHelperInterface::BlitFramebuffer))
+    if (samples > 0 && !m_glHelper->supportsFeature(GraphicsHelperInterface::BlitFramebuffer)) {
+        qWarning () << Q_FUNC_INFO << "Unable to capture multisampled framebuffer; "
+                       "Required feature BlitFramebuffer is missing.";
         return img;
+    }
 
     img = QImage(rect.width(), rect.height(), imageFormat);
 
@@ -1850,6 +1853,7 @@ QImage GraphicsContext::readFramebuffer(const QRect &rect)
         if (status != GL_FRAMEBUFFER_COMPLETE) {
             gl->glDeleteRenderbuffers(1, &rb);
             gl->glDeleteFramebuffers(1, &fbo);
+            qWarning () << Q_FUNC_INFO << "Copy-framebuffer not complete: " << status;
             return img;
         }