Cleanup: extract check_gl_error to gl_util.{cc,h}

1 files changed, 60 insertions, 0 deletions

diff --git a/src/wx/gl_util.cc b/src/wx/gl_util.cc
new file mode 100644
index 000000000..ea0673db5
--- /dev/null
+++ b/src/wx/gl_util.cc
@@ -0,0 +1,60 @@
+/*
+    Copyright (C) 2025 Carl Hetherington <cth@carlh.net>
+
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    DCP-o-matic is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#include "gl_util.h"
+#include "lib/dcpomatic_assert.h"
+
+#include <wx/version.h>
+/* This will only build on an new-enough wxWidgets: see the comment in gl_util.h */
+#if wxCHECK_VERSION(3,1,0)
+
+#ifdef DCPOMATIC_OSX
+#define GL_DO_NOT_WARN_IF_MULTI_GL_VERSION_HEADERS_INCLUDED
+#include <OpenGL/OpenGL.h>
+#include <OpenGL/gl3.h>
+#endif
+
+#ifdef DCPOMATIC_LINUX
+#include <GL/glu.h>
+#include <GL/glext.h>
+#endif
+
+#ifdef DCPOMATIC_WINDOWS
+#include <GL/glu.h>
+#include <GL/wglext.h>
+#endif
+
+
+using namespace dcpomatic::gl;
+
+
+void
+dcpomatic::gl::check_error(char const * last)
+{
+	auto const e = glGetError();
+	if (e != GL_NO_ERROR) {
+		throw GLError(last, e);
+	}
+}
+
+
+#endif
+