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diff --git a/src/newt/native/egl_gbm.h b/src/newt/native/egl_gbm.h
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+/**
+ * Copyright 2019 JogAmp Community. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ * conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ * of conditions and the following disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are those of the
+ * authors and should not be interpreted as representing official policies, either expressed
+ * or implied, of JogAmp Community.
+ */
+
+#include <stdlib.h>
+#include <errno.h>
+#include <string.h>
+#include <fcntl.h>
+#include <inttypes.h>
+
+#include "jogamp_newt_driver_egl_gbm_DisplayDriver.h"
+#include "jogamp_newt_driver_egl_gbm_ScreenDriver.h"
+#include "jogamp_newt_driver_egl_gbm_WindowDriver.h"
+
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+#include <gbm.h>
+
+#define WEAK __attribute__((weak))
+
+#define VERBOSE_ON 1
+
+#ifdef VERBOSE_ON
+ #define DBG_PRINT(...) fprintf(stderr, __VA_ARGS__); fflush(stderr)
+#else
+ #define DBG_PRINT(...)
+#endif
+#define ERR_PRINT(...) fprintf(stderr, __VA_ARGS__); fflush(stderr)
+
+typedef struct {
+ int fd; // drmClose
+ drmModeConnector *connector; // drmModeFreeConnector
+ drmModeEncoder *encoder; // drmModeFreeEncoder
+ int crtc_index;
+
+ drmModeModeInfo *current_mode;
+} DRM_HANDLE;
+