1 files changed, 10 insertions, 0 deletions
diff --git a/src/gui/opengl/qopenglprogrambinarycache.cpp b/src/gui/opengl/qopenglprogrambinarycache.cpp
index 54160e1240..1495471457 100644
--- a/src/gui/opengl/qopenglprogrambinarycache.cpp
+++ b/src/gui/opengl/qopenglprogrambinarycache.cpp
@@ -45,6 +45,7 @@
 #include <QDir>
 #include <QSaveFile>
 #include <QLoggingCategory>
+#include <QCryptographicHash>
 
 #ifdef Q_OS_UNIX
 #include <sys/mman.h>
@@ -94,6 +95,15 @@ GLEnvInfo::GLEnvInfo()
         glversion = QByteArray(version);
 }
 
+QByteArray QOpenGLProgramBinaryCache::ProgramDesc::cacheKey() const
+{
+    QCryptographicHash keyBuilder(QCryptographicHash::Sha1);
+    for (const QOpenGLProgramBinaryCache::ShaderDesc &shader : shaders)
+        keyBuilder.addData(shader.source);
+
+    return keyBuilder.result().toHex();
+}
+
 static inline bool qt_ensureWritableDir(const QString &name)
 {
     QDir::root().mkpath(name);