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Diffstat (limited to 'src/gui/opengl/qopenglframebufferobject.cpp')
-rw-r--r--src/gui/opengl/qopenglframebufferobject.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/gui/opengl/qopenglframebufferobject.cpp b/src/gui/opengl/qopenglframebufferobject.cpp
index aac6ea05584..0eb264b2d9d 100644
--- a/src/gui/opengl/qopenglframebufferobject.cpp
+++ b/src/gui/opengl/qopenglframebufferobject.cpp
@@ -414,8 +414,8 @@ void QOpenGLFramebufferObjectPrivate::init(QOpenGLFramebufferObject *, const QSi
int height = size.height();
int level = 0;
while (width > 1 || height > 1) {
- width = (width + 1) >> 1;
- height = (height + 1) >> 1;
+ width = qMax(1, width >> 1);
+ height = qMax(1, height >> 1);
++level;
glTexImage2D(target, level, internal_format, width, height, 0,
GL_RGBA, GL_UNSIGNED_BYTE, NULL);