/* GDK - The GIMP Drawing Kit
 * Copyright (C) 2020 Red Hat, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
 */

#pragma once

#include <glib.h>

#include "gdktypes.h"
#include <glib/gstdio.h>

G_BEGIN_DECLS

typedef enum {
  GDK_DEBUG_MISC            = 1 <<  0,
  GDK_DEBUG_EVENTS          = 1 <<  1,
  GDK_DEBUG_DND             = 1 <<  2,
  GDK_DEBUG_INPUT           = 1 <<  3,
  GDK_DEBUG_EVENTLOOP       = 1 <<  4,
  GDK_DEBUG_FRAMES          = 1 <<  5,
  GDK_DEBUG_SETTINGS        = 1 <<  6,
  GDK_DEBUG_OPENGL          = 1 <<  7,
  GDK_DEBUG_VULKAN          = 1 <<  8,
  GDK_DEBUG_SELECTION       = 1 <<  9,
  GDK_DEBUG_CLIPBOARD       = 1 << 10,
  /* flags below are influencing behavior */
  GDK_DEBUG_NOGRABS         = 1 << 11,
  GDK_DEBUG_PORTALS         = 1 << 12,
  GDK_DEBUG_NO_PORTALS      = 1 << 13,
  GDK_DEBUG_GL_DISABLE      = 1 << 14,
  GDK_DEBUG_GL_FRACTIONAL   = 1 << 15,
  GDK_DEBUG_GL_LEGACY       = 1 << 16,
  GDK_DEBUG_GL_GLES         = 1 << 17,
  GDK_DEBUG_GL_DEBUG        = 1 << 18,
  GDK_DEBUG_GL_EGL          = 1 << 19,
  GDK_DEBUG_GL_GLX          = 1 << 20,
  GDK_DEBUG_GL_WGL          = 1 << 21,
  GDK_DEBUG_VULKAN_DISABLE  = 1 << 22,
  GDK_DEBUG_VULKAN_VALIDATE = 1 << 23,
  GDK_DEBUG_DEFAULT_SETTINGS= 1 << 24,
  GDK_DEBUG_HIGH_DEPTH      = 1 << 25,
  GDK_DEBUG_NO_VSYNC        = 1 << 26,
} GdkDebugFlags;

extern guint _gdk_debug_flags;

GdkDebugFlags    gdk_display_get_debug_flags    (GdkDisplay       *display);
void             gdk_display_set_debug_flags    (GdkDisplay       *display,
                                                 GdkDebugFlags     flags);

#ifdef GLIB_USING_SYSTEM_PRINTF
#define gdk_debug_message(format, ...) fprintf (stderr, format "\n", ##__VA_ARGS__)
#else
#define gdk_debug_message(format, ...) g_fprintf (stderr, format "\n", ##__VA_ARGS__)
#endif

#ifdef G_ENABLE_DEBUG

#define GDK_DISPLAY_DEBUG_CHECK(display,type) \
    G_UNLIKELY (gdk_display_get_debug_flags (display) & GDK_DEBUG_##type)

#define GDK_DISPLAY_DEBUG(display,type,...)                               \
    G_STMT_START {                                                        \
    if (GDK_DISPLAY_DEBUG_CHECK (display,type))                           \
      gdk_debug_message (__VA_ARGS__);                                    \
    } G_STMT_END

#else /* !G_ENABLE_DEBUG */

#define GDK_DISPLAY_DEBUG_CHECK(display,type) 0
#define GDK_DISPLAY_DEBUG(display,type,...)

#endif /* G_ENABLE_DEBUG */

#define GDK_DEBUG_CHECK(type) GDK_DISPLAY_DEBUG_CHECK (NULL,type)
#define GDK_DEBUG(type,...) GDK_DISPLAY_DEBUG (NULL,type,__VA_ARGS__)

typedef struct
{
  const char *key;
  guint value;
  const char *help;
  gboolean always_enabled;
} GdkDebugKey;

guint gdk_parse_debug_var (const char        *variable,
                           const GdkDebugKey *keys,
                           guint              nkeys);