/*
 * Cogl
 *
 * An object oriented GL/GLES Abstraction/Utility Layer
 *
 * Copyright (C) 2007,2008,2009 Intel Corporation.
 *
 * 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/>.
 *
 *
 */

#ifndef __COGL_WINSYS_PRIVATE_H
#define __COGL_WINSYS_PRIVATE_H

#include "cogl-renderer.h"
#include "cogl-onscreen.h"
#include "cogl-gles2.h"

#ifdef COGL_HAS_XLIB_SUPPORT
#include "cogl-texture-pixmap-x11-private.h"
#endif

#ifdef COGL_HAS_XLIB_SUPPORT
#include <X11/Xutil.h>
#include "cogl-texture-pixmap-x11-private.h"
#endif

#ifdef COGL_HAS_EGL_SUPPORT
#include "cogl-egl.h"
#endif

#include "cogl-poll.h"

uint32_t
_cogl_winsys_error_quark (void);

#define COGL_WINSYS_ERROR (_cogl_winsys_error_quark ())

typedef enum { /*< prefix=COGL_WINSYS_ERROR >*/
  COGL_WINSYS_ERROR_INIT,
  COGL_WINSYS_ERROR_CREATE_CONTEXT,
  COGL_WINSYS_ERROR_CREATE_ONSCREEN,
  COGL_WINSYS_ERROR_MAKE_CURRENT,
  COGL_WINSYS_ERROR_CREATE_GLES2_CONTEXT,
} CoglWinsysError;

typedef enum
{
  COGL_WINSYS_RECTANGLE_STATE_UNKNOWN,
  COGL_WINSYS_RECTANGLE_STATE_DISABLE,
  COGL_WINSYS_RECTANGLE_STATE_ENABLE
} CoglWinsysRectangleState;

typedef struct _CoglWinsysVtable
{
  CoglWinsysID id;
  CoglRendererConstraint constraints;

  const char *name;

  /* Required functions */

  CoglFuncPtr
  (*renderer_get_proc_address) (CoglRenderer *renderer,
                                const char *name,
                                CoglBool in_core);

  CoglBool
  (*renderer_connect) (CoglRenderer *renderer, CoglError **error);

  void
  (*renderer_disconnect) (CoglRenderer *renderer);

  void
  (*renderer_outputs_changed) (CoglRenderer *renderer);

  CoglBool
  (*display_setup) (CoglDisplay *display, CoglError **error);

  void
  (*display_destroy) (CoglDisplay *display);

  CoglBool
  (*context_init) (CoglContext *context, CoglError **error);

  void
  (*context_deinit) (CoglContext *context);

  void *
  (*context_create_gles2_context) (CoglContext *ctx, CoglError **error);

  CoglBool
  (*onscreen_init) (CoglOnscreen *onscreen, CoglError **error);

  void
  (*onscreen_deinit) (CoglOnscreen *onscreen);

  void
  (*onscreen_bind) (CoglOnscreen *onscreen);

  void
  (*onscreen_swap_buffers) (CoglOnscreen *onscreen);

  void
  (*onscreen_update_swap_throttled) (CoglOnscreen *onscreen);

  void
  (*onscreen_set_visibility) (CoglOnscreen *onscreen,
                              CoglBool visibility);

  /* Optional functions */

  int64_t
  (*context_get_clock_time) (CoglContext *context);

  void
  (*onscreen_swap_region) (CoglOnscreen *onscreen,
                           const int *rectangles,
                           int n_rectangles);

  void
  (*onscreen_set_resizable) (CoglOnscreen *onscreen, CoglBool resizable);

  int
  (*onscreen_get_buffer_age) (CoglOnscreen *onscreen);

#ifdef COGL_HAS_EGL_SUPPORT
  EGLDisplay
  (*context_egl_get_egl_display) (CoglContext *context);
#endif

#ifdef COGL_HAS_XLIB_SUPPORT
  XVisualInfo *
  (*xlib_get_visual_info) (void);
#endif

  uint32_t
  (*onscreen_x11_get_window_xid) (CoglOnscreen *onscreen);

#ifdef COGL_HAS_WIN32_SUPPORT
  HWND
  (*onscreen_win32_get_window) (CoglOnscreen *onscreen);
#endif

  void
  (*poll_get_info) (CoglContext *context,
                    CoglPollFD **poll_fds,
                    int *n_poll_fds,
                    int64_t *timeout);
  void
  (*poll_dispatch) (CoglContext *context,
                    const CoglPollFD *poll_fds,
                    int n_poll_fds);

#ifdef COGL_HAS_XLIB_SUPPORT
  CoglBool
  (*texture_pixmap_x11_create) (CoglTexturePixmapX11 *tex_pixmap);
  void
  (*texture_pixmap_x11_free) (CoglTexturePixmapX11 *tex_pixmap);

  CoglBool
  (*texture_pixmap_x11_update) (CoglTexturePixmapX11 *tex_pixmap,
                                CoglBool needs_mipmap);

  void
  (*texture_pixmap_x11_damage_notify) (CoglTexturePixmapX11 *tex_pixmap);

  CoglTexture *
  (*texture_pixmap_x11_get_texture) (CoglTexturePixmapX11 *tex_pixmap);
#endif

  void
  (*save_context) (CoglContext *ctx);

  CoglBool
  (*set_gles2_context) (CoglGLES2Context *gles2_ctx, CoglError **error);

  void
  (*restore_context) (CoglContext *ctx);

  void
  (*destroy_gles2_context) (CoglGLES2Context *gles2_ctx);

} CoglWinsysVtable;

CoglBool
_cogl_winsys_has_feature (CoglWinsysFeature feature);

#endif /* __COGL_WINSYS_PRIVATE_H */