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Diffstat (limited to 'src/opengl/qgl_win.cpp')
-rw-r--r--src/opengl/qgl_win.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/opengl/qgl_win.cpp b/src/opengl/qgl_win.cpp
index dbbdc0e..70016a0 100644
--- a/src/opengl/qgl_win.cpp
+++ b/src/opengl/qgl_win.cpp
@@ -1261,6 +1261,7 @@ void QGLContext::reset()
}
d->dc = 0;
d->win = 0;
+ d->threadId = 0;
d->pixelFormatId = 0;
d->sharing = false;
d->valid = false;
@@ -1283,8 +1284,9 @@ void QGLContext::makeCurrent()
if (d->rc == wglGetCurrentContext() || !d->valid) // already current
return;
- if (d->win) {
+ if (d->win && (!d->dc || d->threadId != QThread::currentThreadId())) {
d->dc = GetDC(d->win);
+ d->threadId = QThread::currentThreadId();
if (!d->dc) {
qwglError("QGLContext::makeCurrent()", "GetDC()");
return;
@@ -1322,6 +1324,7 @@ void QGLContext::doneCurrent()
if (d->win && d->dc) {
ReleaseDC(d->win, d->dc);
d->dc = 0;
+ d->threadId = 0;
}
}