/*
* Copyright (c) 2002-2008 LWJGL Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * 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.
*
* * Neither the name of 'LWJGL' nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "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 THE COPYRIGHT OWNER 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.
*/
#ifndef EXTGL_GLX_H
#define EXTGL_GLX_H
#include <X11/Xutil.h>
#include "extgl.h"
/*
* Names for attributes to lwjgl_glXGetConfig.
*/
#define GLX_USE_GL 1 /* support GLX rendering */
#define GLX_BUFFER_SIZE 2 /* depth of the color buffer */
#define GLX_LEVEL 3 /* level in plane stacking */
#define GLX_RGBA 4 /* true if RGBA mode */
#define GLX_DOUBLEBUFFER 5 /* double buffering supported */
#define GLX_STEREO 6 /* stereo buffering supported */
#define GLX_AUX_BUFFERS 7 /* number of aux buffers */
#define GLX_RED_SIZE 8 /* number of red component bits */
#define GLX_GREEN_SIZE 9 /* number of green component bits */
#define GLX_BLUE_SIZE 10 /* number of blue component bits */
#define GLX_ALPHA_SIZE 11 /* number of alpha component bits */
#define GLX_DEPTH_SIZE 12 /* number of depth bits */
#define GLX_STENCIL_SIZE 13 /* number of stencil bits */
#define GLX_ACCUM_RED_SIZE 14 /* number of red accum bits */
#define GLX_ACCUM_GREEN_SIZE 15 /* number of green accum bits */
#define GLX_ACCUM_BLUE_SIZE 16 /* number of blue accum bits */
#define GLX_ACCUM_ALPHA_SIZE 17 /* number of alpha accum bits */
#define GLX_SAMPLE_BUFFERS_ARB 100000 /* number of multisample buffers */
#define GLX_SAMPLES_ARB 100001 /* number of multisample samples */
/*
* FBConfig-specific attributes
*/
#define GLX_X_VISUAL_TYPE 0x22
#define GLX_CONFIG_CAVEAT 0x20 /* Like visual_info VISUAL_CAVEAT */
#define GLX_TRANSPARENT_TYPE 0x23
#define GLX_TRANSPARENT_INDEX_VALUE 0x24
#define GLX_TRANSPARENT_RED_VALUE 0x25
#define GLX_TRANSPARENT_GREEN_VALUE 0x26
#define GLX_TRANSPARENT_BLUE_VALUE 0x27
#define GLX_TRANSPARENT_ALPHA_VALUE 0x28
#define GLX_DRAWABLE_TYPE 0x8010
#define GLX_RENDER_TYPE 0x8011
#define GLX_X_RENDERABLE 0x8012
#define GLX_FBCONFIG_ID 0x8013
#define GLX_MAX_PBUFFER_WIDTH 0x8016
#define GLX_MAX_PBUFFER_HEIGHT 0x8017
#define GLX_MAX_PBUFFER_PIXELS 0x8018
#define GLX_VISUAL_ID 0x800B
#define GLX_DRAWABLE_TYPE_SGIX GLX_DRAWABLE_TYPE
#define GLX_RENDER_TYPE_SGIX GLX_RENDER_TYPE
#define GLX_X_RENDERABLE_SGIX GLX_X_RENDERABLE
#define GLX_FBCONFIG_ID_SGIX GLX_FBCONFIG_ID
#define GLX_MAX_PBUFFER_WIDTH_SGIX GLX_MAX_PBUFFER_WIDTH
#define GLX_MAX_PBUFFER_HEIGHT_SGIX GLX_MAX_PBUFFER_HEIGHT
#define GLX_MAX_PBUFFER_PIXELS_SGIX GLX_MAX_PBUFFER_PIXELS
#define GLX_OPTIMAL_PBUFFER_WIDTH_SGIX 0x8019
#define GLX_OPTIMAL_PBUFFER_HEIGHT_SGIX 0x801A
/*
* Error return values from lwjgl_glXGetConfig. Success is indicated by
* a value of 0.
*/
#define GLX_BAD_SCREEN 1 /* screen # is bad */
#define GLX_BAD_ATTRIBUTE 2 /* attribute to get is bad */
#define GLX_NO_EXTENSION 3 /* no glx extension on server */
#define GLX_BAD_VISUAL 4 /* visual # not known by GLX */
#define GLX_BAD_CONTEXT 5
#define GLX_BAD_VALUE 6
#define GLX_BAD_ENUM 7
/* FBConfig attribute values */
/*
* Generic "don't care" value for lwjgl_glX ChooseFBConfig attributes (except
* GLX_LEVEL).
*/
#define GLX_DONT_CARE 0xFFFFFFFF
/* GLX_RENDER_TYPE bits */
#define GLX_RGBA_BIT 0x00000001
#define GLX_COLOR_INDEX_BIT 0x00000002
#define GLX_RGBA_BIT_SGIX GLX_RGBA_BIT
#define GLX_COLOR_INDEX_BIT_SGIX GLX_COLOR_INDEX_BIT
/* GLX_DRAWABLE_TYPE bits */
#define GLX_WINDOW_BIT 0x00000001
#define GLX_PIXMAP_BIT 0x00000002
#define GLX_PBUFFER_BIT 0x00000004
#define GLX_WINDOW_BIT_SGIX GLX_WINDOW_BIT
#define GLX_PIXMAP_BIT_SGIX GLX_PIXMAP_BIT
#define GLX_PBUFFER_BIT_SGIX GLX_PBUFFER_BIT
/* GLX_CONFIG_CAVEAT attribute values */
#define GLX_NONE 0x8000
#define GLX_SLOW_CONFIG 0x8001
#define GLX_NON_CONFORMANT_CONFIG 0x800D
/* GLX_X_VISUAL_TYPE attribute values */
#define GLX_TRUE_COLOR 0x8002
#define GLX_DIRECT_COLOR 0x8003
#define GLX_PSEUDO_COLOR 0x8004
#define GLX_STATIC_COLOR 0x8005
#define GLX_GRAY_SCALE 0x8006
#define GLX_STATIC_GRAY 0x8007
/* GLX_TRANSPARENT_TYPE attribute values */
/* #define GLX_NONE 0x8000 */
#define GLX_TRANSPARENT_RGB 0x8008
#define GLX_TRANSPARENT_INDEX 0x8009
/* lwjgl_glXCreateGLXPbuffer attributes */
#define GLX_PRESERVED_CONTENTS 0x801B
#define GLX_LARGEST_PBUFFER 0x801C
#define GLX_PBUFFER_HEIGHT 0x8040 /* New for GLX 1.3 */
#define GLX_PBUFFER_WIDTH 0x8041 /* New for GLX 1.3 */
#define GLX_PRESERVED_CONTENTS_SGIX GLX_PRESERVED_CONTENTS
#define GLX_LARGEST_PBUFFER_SGIX GLX_LARGEST_PBUFFER
/* lwjgl_glXQueryGLXPBuffer attributes */
#define GLX_WIDTH 0x801D
#define GLX_HEIGHT 0x801E
#define GLX_EVENT_MASK 0x801F
#define GLX_WIDTH_SGIX GLX_WIDTH
#define GLX_HEIGHT_SGIX GLX_HEIGHT
#define GLX_EVENT_MASK_SGIX GLX_EVENT_MASK
/* lwjgl_glXCreateNewContext render_type attribute values */
#define GLX_RGBA_TYPE 0x8014
#define GLX_COLOR_INDEX_TYPE 0x8015
#define GLX_RGBA_TYPE_SGIX GLX_RGBA_TYPE
#define GLX_COLOR_INDEX_TYPE_SGIX GLX_COLOR_INDEX_TYPE
/* lwjgl_glXQueryContext attributes */
/* #define GLX_FBCONFIG_ID 0x8013 */
/* #define GLX_RENDER_TYPE 0x8011 */
#define GLX_SCREEN 0x800C
/* lwjgl_glXSelectEvent event mask bits */
#define GLX_PBUFFER_CLOBBER_MASK 0x08000000
#define GLX_PBUFFER_CLOBBER_MASK_SGIX GLX_PBUFFER_CLOBBER_MASK
/* GLXPbufferClobberEvent event_type values */
#define GLX_DAMAGED 0x8020
#define GLX_SAVED 0x8021
#define GLX_DAMAGED_SGIX GLX_DAMAGED
#define GLX_SAVED_SGIX GLX_SAVED
/* GLXPbufferClobberEvent draw_type values */
#define GLX_WINDOW 0x8022
#define GLX_PBUFFER 0x8023
#define GLX_WINDOW_SGIX GLX_WINDOW
#define GLX_PBUFFER_SGIX GLX_PBUFFER
/* GLXPbufferClobberEvent buffer_mask bits */
#define GLX_FRONT_LEFT_BUFFER_BIT 0x00000001
#define GLX_FRONT_RIGHT_BUFFER_BIT 0x00000002
#define GLX_BACK_LEFT_BUFFER_BIT 0x00000004
#define GLX_BACK_RIGHT_BUFFER_BIT 0x00000008
#define GLX_AUX_BUFFERS_BIT 0x00000010
#define GLX_DEPTH_BUFFER_BIT 0x00000020
#define GLX_STENCIL_BUFFER_BIT 0x00000040
#define GLX_ACCUM_BUFFER_BIT 0x00000080
#define GLX_FRONT_LEFT_BUFFER_BIT_SGIX GLX_FRONT_LEFT_BUFFER_BIT
#define GLX_FRONT_RIGHT_BUFFER_BIT_SGIX GLX_FRONT_RIGHT_BUFFER_BIT
#define GLX_BACK_LEFT_BUFFER_BIT_SGIX GLX_BACK_LEFT_BUFFER_BIT
#define GLX_BACK_RIGHT_BUFFER_BIT_SGIX GLX_BACK_RIGHT_BUFFER_BIT
#define GLX_AUX_BUFFERS_BIT_SGIX GLX_AUX_BUFFERS_BIT
#define GLX_DEPTH_BUFFER_BIT_SGIX GLX_DEPTH_BUFFER_BIT
#define GLX_STENCIL_BUFFER_BIT_SGIX GLX_STENCIL_BUFFER_BIT
#define GLX_ACCUM_BUFFER_BIT_SGIX GLX_ACCUM_BUFFER_BIT
/*
* Extension return values from lwjgl_glXGetConfig. These are also
* accepted as parameter values for lwjgl_glXChooseVisual.
*/
#define GLX_X_VISUAL_TYPE_EXT 0x22 /* visual_info extension type */
#define GLX_TRANSPARENT_TYPE_EXT 0x23 /* visual_info extension */
#define GLX_TRANSPARENT_INDEX_VALUE_EXT 0x24 /* visual_info extension */
#define GLX_TRANSPARENT_RED_VALUE_EXT 0x25 /* visual_info extension */
#define GLX_TRANSPARENT_GREEN_VALUE_EXT 0x26 /* visual_info extension */
#define GLX_TRANSPARENT_BLUE_VALUE_EXT 0x27 /* visual_info extension */
#define GLX_TRANSPARENT_ALPHA_VALUE_EXT 0x28 /* visual_info extension */
/* Property values for visual_type */
#define GLX_TRUE_COLOR_EXT 0x8002
#define GLX_DIRECT_COLOR_EXT 0x8003
#define GLX_PSEUDO_COLOR_EXT 0x8004
#define GLX_STATIC_COLOR_EXT 0x8005
#define GLX_GRAY_SCALE_EXT 0x8006
#define GLX_STATIC_GRAY_EXT 0x8007
/* Property values for transparent pixel */
#define GLX_NONE_EXT 0x8000
#define GLX_TRANSPARENT_RGB_EXT 0x8008
#define GLX_TRANSPARENT_INDEX_EXT 0x8009
/* Property values for visual_rating */
#define GLX_VISUAL_CAVEAT_EXT 0x20 /* visual_rating extension type */
#define GLX_SLOW_VISUAL_EXT 0x8001
#define GLX_NON_CONFORMANT_VISUAL_EXT 0x800D
/*
* Names for attributes to lwjgl_glXGetClientString.
*/
#define GLX_VENDOR 0x1
#define GLX_VERSION 0x2
#define GLX_EXTENSIONS 0x3
/*
* Names for attributes to lwjgl_glXQueryContextInfoEXT.
*/
#define GLX_SHARE_CONTEXT_EXT 0x800A /* id of share context */
#define GLX_VISUAL_ID_EXT 0x800B /* id of context's visual */
#define GLX_SCREEN_EXT 0x800C /* screen number */
/* NV_float_buffer */
#define GLX_FLOAT_COMPONENTS_NV 0x20B0
/* GLX_ARB_fbconfig_float */
#define GLX_RGBA_FLOAT_TYPE 0x20B9
#define GLX_RGBA_FLOAT_BIT 0x0004
/* GLX_ARB_fbconfig_float */
#define GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT 0x20B1
#define GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT 0x00000008
/* GLX_ARB_framebuffer_sRGB */
#define GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB 0x20B2
/* GLX_ARB_create_context */
#define GLX_CONTEXT_MAJOR_VERSION_ARB 0x2091
#define GLX_CONTEXT_MINOR_VERSION_ARB 0x2092
#define GLX_CONTEXT_FLAGS_ARB 0x2094
#define GLX_CONTEXT_DEBUG_BIT_ARB 0x0001
#define GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB 0x0002
/* GLX_NV_multisample_coverage */
#define GLX_COVERAGE_SAMPLES_NV 100001
#define GLX_COLOR_SAMPLES_NV 0x20B3
typedef XID GLXContextID;
typedef XID GLXPixmap;
typedef XID GLXDrawable;
typedef XID GLXPbuffer;
typedef XID GLXWindow;
typedef XID GLXFBConfigID;
typedef struct __GLXcontextRec *GLXContext;
typedef struct __GLXFBConfigRec *GLXFBConfig;
typedef GLXFBConfig * (APIENTRY * glXGetFBConfigsPROC) (Display *dpy, int screen, int *nelements);
typedef GLXFBConfig * (APIENTRY * glXChooseFBConfigPROC) (Display *dpy, int screen, const int *attrib_list, int *nelements);
typedef int (APIENTRY * glXGetFBConfigAttribPROC) (Display *dpy, GLXFBConfig config, int attribute, int *value);
typedef XVisualInfo * (APIENTRY * glXGetVisualFromFBConfigPROC) (Display *dpy, GLXFBConfig config);
typedef GLXWindow (APIENTRY * glXCreateWindowPROC) (Display *dpy, GLXFBConfig config, Window win, const int *attrib_list);
typedef void (APIENTRY * glXDestroyWindowPROC) (Display *dpy, GLXWindow win);
typedef GLXPixmap (APIENTRY * glXCreatePixmapPROC) (Display *dpy, GLXFBConfig config, Pixmap pixmap, const int *attrib_list);
typedef void (APIENTRY * glXDestroyPixmapPROC) (Display *dpy, GLXPixmap pixmap);
typedef GLXPbuffer (APIENTRY * glXCreatePbufferPROC) (Display *dpy, GLXFBConfig config, const int *attrib_list);
typedef void (APIENTRY * glXDestroyPbufferPROC) (Display *dpy, GLXPbuffer pbuf);
typedef void (APIENTRY * glXQueryDrawablePROC) (Display *dpy, GLXDrawable draw, int attribute, unsigned int *value);
typedef GLXContext (APIENTRY * glXCreateNewContextPROC) (Display *dpy, GLXFBConfig config, int render_type, GLXContext share_list, Bool direct);
typedef Bool (APIENTRY * glXMakeContextCurrentPROC) (Display *display, GLXDrawable draw, GLXDrawable read, GLXContext ctx);
typedef GLXDrawable (APIENTRY * glXGetCurrentReadDrawablePROC) (void);
typedef Display * (APIENTRY * glXGetCurrentDisplayPROC) (void);
typedef int (APIENTRY * glXQueryContextPROC) (Display *dpy, GLXContext ctx, int attribute, int *value);
typedef void (APIENTRY * glXSelectEventPROC) (Display *dpy, GLXDrawable draw, unsigned long event_mask);
typedef void (APIENTRY * glXGetSelectedEventPROC) (Display *dpy, GLXDrawable draw, unsigned long *event_mask);
typedef GLXContextID (APIENTRY * glXGetContextIDEXTPROC) (const GLXContext ctx);
typedef GLXDrawable (APIENTRY * glXGetCurrentDrawableEXTPROC) (void);
typedef GLXContext (APIENTRY * glXImportContextEXTPROC) (Display *dpy, GLXContextID contextID);
typedef void (APIENTRY * glXFreeContextEXTPROC) (Display *dpy, GLXContext ctx);
typedef int (APIENTRY * glXQueryContextInfoEXTPROC) (Display *dpy, GLXContext ctx, int attribute, int *value);
typedef XVisualInfo* (APIENTRY * glXChooseVisualPROC) (Display *dpy, int screen, int *attribList);
typedef void (APIENTRY * glXCopyContextPROC) (Display *dpy, GLXContext src, GLXContext dst, unsigned long mask);
typedef GLXContext (APIENTRY * glXCreateContextPROC) (Display *dpy, XVisualInfo *vis, GLXContext shareList, Bool direct);
typedef GLXPixmap (APIENTRY * glXCreateGLXPixmapPROC) (Display *dpy, XVisualInfo *vis, Pixmap pixmap);
typedef void (APIENTRY * glXDestroyContextPROC) (Display *dpy, GLXContext ctx);
typedef void (APIENTRY * glXDestroyGLXPixmapPROC) (Display *dpy, GLXPixmap pix);
typedef int (APIENTRY * glXGetConfigPROC) (Display *dpy, XVisualInfo *vis, int attrib, int *value);
typedef GLXContext (APIENTRY * glXGetCurrentContextPROC) (void);
typedef GLXDrawable (APIENTRY * glXGetCurrentDrawablePROC) (void);
typedef Bool (APIENTRY * glXIsDirectPROC) (Display *dpy, GLXContext ctx);
typedef Bool (APIENTRY * glXMakeCurrentPROC) (Display *dpy, GLXDrawable drawable, GLXContext ctx);
typedef Bool (APIENTRY * glXQueryExtensionPROC) (Display *dpy, int *errorBase, int *eventBase);
typedef Bool (APIENTRY * glXQueryVersionPROC) (Display *dpy, int *major, int *minor);
typedef void (APIENTRY * glXSwapBuffersPROC) (Display *dpy, GLXDrawable drawable);
typedef void (APIENTRY * glXUseXFontPROC) (Font font, int first, int count, int listBase);
typedef void (APIENTRY * glXWaitGLPROC) (void);
typedef void (APIENTRY * glXWaitXPROC) (void);
typedef const char * (APIENTRY * glXGetClientStringPROC) (Display *dpy, int name );
typedef const char * (APIENTRY * glXQueryServerStringPROC) (Display *dpy, int screen, int name );
typedef const char * (APIENTRY * glXQueryExtensionsStringPROC) (Display *dpy, int screen );
/* GLX_SGI_swap_control */
typedef void (APIENTRY * glXSwapIntervalSGIPROC)(int interval);
/* GLX_ARB_create_context */
typedef GLXContext (APIENTRY * glXCreateContextAttribsARBPROC) (Display *dpy, GLXFBConfig config, GLXContext share_context, Bool direct, const int *attrib_list);
typedef struct {
bool GLX12;
bool GLX13;
bool GLX14;
/* bool GLX_EXT_visual_info;
bool GLX_EXT_visual_rating;*/
bool GLX_SGI_swap_control;
bool GLX_ARB_multisample;
bool GLX_ARB_fbconfig_float;
bool GLX_EXT_fbconfig_packed_float;
bool GLX_ARB_framebuffer_sRGB;
bool GLX_ARB_create_context;
bool GLX_NV_multisample_coverage;
} GLXExtensions;
/* Add _ to global symbols to avoid symbol clash with the OpenGL library */
extern glXGetFBConfigsPROC lwjgl_glXGetFBConfigs;
extern glXChooseFBConfigPROC lwjgl_glXChooseFBConfig;
extern glXGetFBConfigAttribPROC lwjgl_glXGetFBConfigAttrib;
extern glXGetVisualFromFBConfigPROC lwjgl_glXGetVisualFromFBConfig;
extern glXCreateWindowPROC lwjgl_glXCreateWindow;
extern glXDestroyWindowPROC lwjgl_glXDestroyWindow;
extern glXCreatePixmapPROC lwjgl_glXCreatePixmap;
extern glXDestroyPixmapPROC lwjgl_glXDestroyPixmap;
extern glXCreatePbufferPROC lwjgl_glXCreatePbuffer;
extern glXDestroyPbufferPROC lwjgl_glXDestroyPbuffer;
extern glXQueryDrawablePROC lwjgl_glXQueryDrawable;
extern glXCreateNewContextPROC lwjgl_glXCreateNewContext;
extern glXMakeContextCurrentPROC lwjgl_glXMakeContextCurrent;
extern glXGetCurrentReadDrawablePROC lwjgl_glXGetCurrentReadDrawable;
extern glXGetCurrentDisplayPROC lwjgl_glXGetCurrentDisplay;
extern glXQueryContextPROC lwjgl_glXQueryContext;
extern glXSelectEventPROC lwjgl_glXSelectEvent;
extern glXGetSelectedEventPROC lwjgl_glXGetSelectedEvent;
extern glXChooseVisualPROC lwjgl_glXChooseVisual;
extern glXCopyContextPROC lwjgl_glXCopyContext;
extern glXCreateContextPROC lwjgl_glXCreateContext;
extern glXCreateGLXPixmapPROC lwjgl_glXCreateGLXPixmap;
extern glXDestroyContextPROC lwjgl_glXDestroyContext;
extern glXDestroyGLXPixmapPROC lwjgl_glXDestroyGLXPixmap;
extern glXGetConfigPROC lwjgl_glXGetConfig;
extern glXGetCurrentContextPROC lwjgl_glXGetCurrentContext;
extern glXGetCurrentDrawablePROC lwjgl_glXGetCurrentDrawable;
extern glXIsDirectPROC lwjgl_glXIsDirect;
extern glXMakeCurrentPROC lwjgl_glXMakeCurrent;
extern glXQueryExtensionPROC lwjgl_glXQueryExtension;
extern glXQueryVersionPROC lwjgl_glXQueryVersion;
extern glXSwapBuffersPROC lwjgl_glXSwapBuffers;
extern glXUseXFontPROC lwjgl_glXUseXFont;
extern glXWaitGLPROC lwjgl_glXWaitGL;
extern glXWaitXPROC lwjgl_glXWaitX;
extern glXGetClientStringPROC lwjgl_glXGetClientString;
extern glXQueryServerStringPROC lwjgl_glXQueryServerString;
extern glXQueryExtensionsStringPROC lwjgl_glXQueryExtensionsString;
extern glXSwapIntervalSGIPROC lwjgl_glXSwapIntervalSGI;
extern glXCreateContextAttribsARBPROC lwjgl_glXCreateContextAttribsARB;
extern bool extgl_InitGLX(Display *disp, int screen, GLXExtensions *extension_flags);
#endif