Add check in buffer creation

Checks if the buffer was created successfully in
QSGDefaultDistanceFieldGlyphCache::QSGDefaultDistanceFieldGlyphCache.
In case of error shows a warning.

Change-Id: I14565c411bbe1081f87b809ea417c44f8cefd9c5
Reviewed-by: Gunnar Sletta <gunnar@crimson.no>

1 files changed, 9 insertions, 6 deletions

diff --git a/src/quick/scenegraph/qsgdefaultdistancefieldglyphcache.cpp b/src/quick/scenegraph/qsgdefaultdistancefieldglyphcache.cpp
index ba25172d2f..7789ef8fb1 100644
--- a/src/quick/scenegraph/qsgdefaultdistancefieldglyphcache.cpp
+++ b/src/quick/scenegraph/qsgdefaultdistancefieldglyphcache.cpp
@@ -71,12 +71,15 @@ QSGDefaultDistanceFieldGlyphCache::QSGDefaultDistanceFieldGlyphCache(QOpenGLCont
     , m_coreFuncs(0)
 #endif
 {
-    m_blitBuffer.create();
-    m_blitBuffer.bind();
-    static GLfloat buffer[16] = {-1.0f, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f,
-                                 0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f};
-    m_blitBuffer.allocate(buffer, sizeof(buffer));
-    m_blitBuffer.release();
+    if (Q_LIKELY(m_blitBuffer.create())) {
+        m_blitBuffer.bind();
+        static const GLfloat buffer[16] = {-1.0f, -1.0f, 1.0f, -1.0f, 1.0f, 1.0f, -1.0f, 1.0f,
+                                           0.0f, 0.0f, 1.0f, 0.0f, 1.0f, 1.0f, 0.0f, 1.0f};
+        m_blitBuffer.allocate(buffer, sizeof(buffer));
+        m_blitBuffer.release();
+    } else {
+        qWarning("Buffer creation failed");
+    }
 
     m_areaAllocator = new QSGAreaAllocator(QSize(maxTextureSize(), m_maxTextureCount * maxTextureSize()));
 }