sync with upstream

1 files changed, 46 insertions, 0 deletions

diff --git a/xbmc/utils/GLUtils.h b/xbmc/utils/GLUtils.h
new file mode 100644
index 0000000..2dea067
--- /dev/null
+++ b/xbmc/utils/GLUtils.h
@@ -0,0 +1,46 @@
+/*
+ *  Copyright (C) 2005-2018 Team Kodi
+ *  This file is part of Kodi - https://kodi.tv
+ *
+ *  SPDX-License-Identifier: GPL-2.0-or-later
+ *  See LICENSES/README.md for more information.
+ */
+
+#pragma once
+
+// GL Error checking macro
+// this function is useful for tracking down GL errors, which otherwise
+// just result in undefined behavior and can be difficult to track down.
+//
+// Just call it 'VerifyGLState()' after a sequence of GL calls
+//
+// if GL_DEBUGGING and HAS_GL are defined, the function checks
+// for GL errors and prints the current state of the various matrices;
+// if not it's just an empty inline stub, and thus won't affect performance
+// and will be optimized out.
+
+#include "system_gl.h"
+
+namespace KODI
+{
+namespace UTILS
+{
+namespace GL
+{
+
+void GlErrorCallback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar* message, const void* userParam);
+
+}
+}
+}
+
+void _VerifyGLState(const char* szfile, const char* szfunction, int lineno);
+#if defined(GL_DEBUGGING) && (defined(HAS_GL) || defined(HAS_GLES))
+#define VerifyGLState() _VerifyGLState(__FILE__, __FUNCTION__, __LINE__)
+#else
+#define VerifyGLState()
+#endif
+
+void LogGraphicsInfo();
+
+int glFormatElementByteCount(GLenum format);