3 files changed, 32 insertions, 6 deletions
diff --git a/src/opengl/qglframebufferobject.cpp b/src/opengl/qglframebufferobject.cpp
index 452f155..9990586 100644
--- a/src/opengl/qglframebufferobject.cpp
+++ b/src/opengl/qglframebufferobject.cpp
@@ -100,6 +100,13 @@ public:
           internal_format(other->internal_format)
     {
     }
+    bool equals(const QGLFramebufferObjectFormatPrivate *other)
+    {
+        return samples == other->samples &&
+               attachment == other->attachment &&
+               target == other->target &&
+               internal_format == other->internal_format;
+    }
 
     QAtomicInt ref;
     int samples;
@@ -311,6 +318,27 @@ void QGLFramebufferObjectFormat::setInternalTextureFormat(QMacCompatGLenum inter
 }
 #endif
 
+/*!
+    Returns true if all the options of this framebuffer object format
+    are the same as \a other; otherwise returns false.
+*/
+bool QGLFramebufferObjectFormat::operator==(const QGLFramebufferObjectFormat& other) const
+{
+    if (d == other.d)
+        return true;
+    else
+        return d->equals(other.d);
+}
+
+/*!
+    Returns false if all the options of this framebuffer object format
+    are the same as \a other; otherwise returns true.
+*/
+bool QGLFramebufferObjectFormat::operator!=(const QGLFramebufferObjectFormat& other) const
+{
+    return !(*this == other);
+}
+
 class QGLFramebufferObjectPrivate
 {
 public:
diff --git a/src/opengl/qglframebufferobject.h b/src/opengl/qglframebufferobject.h
index 6c1c0be..2778ec5 100644
--- a/src/opengl/qglframebufferobject.h
+++ b/src/opengl/qglframebufferobject.h
@@ -159,6 +159,9 @@ public:
     void setInternalTextureFormat(QMacCompatGLenum internalTextureFormat);
 #endif
 
+    bool operator==(const QGLFramebufferObjectFormat& other) const;
+    bool operator!=(const QGLFramebufferObjectFormat& other) const;
+
 private:
     QGLFramebufferObjectFormatPrivate *d;
 
diff --git a/src/opengl/qpixmapdata_gl.cpp b/src/opengl/qpixmapdata_gl.cpp
index d63d2ad..a394716 100644
--- a/src/opengl/qpixmapdata_gl.cpp
+++ b/src/opengl/qpixmapdata_gl.cpp
@@ -80,12 +80,7 @@ QGLFramebufferObject *QGLFramebufferObjectPool::acquire(const QSize &requestSize
     for (int i = 0; !chosen && i < m_fbos.size(); ++i) {
         QGLFramebufferObject *fbo = m_fbos.at(i);
 
-        QGLFramebufferObjectFormat format = fbo->format();
-        if (format.samples() == requestFormat.samples()
-            && format.attachment() == requestFormat.attachment()
-            && format.textureTarget() == requestFormat.textureTarget()
-            && format.internalTextureFormat() == requestFormat.internalTextureFormat())
-        {
+        if (fbo->format() == requestFormat) {
             // choose the fbo with a matching format and the closest size
             if (!candidate || areaDiff(requestSize, candidate) > areaDiff(requestSize, fbo))
                 candidate = fbo;