Add file miniglx.h

1 files changed, 400 insertions, 0 deletions

diff --git a/include/GL/miniglx.h b/include/GL/miniglx.h
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+++ b/include/GL/miniglx.h
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+/* $Id: miniglx.h,v 1.1 2003/08/23 01:25:30 jonsmirl Exp $ */
+
+/*
+ * Mesa 3-D graphics library
+ * Version:  5.0
+ *
+ * Copyright (C) 1999-2002  Brian Paul   All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * \file miniglx.h
+ * \brief Mini GLX interface functions.
+ * \author Brian Paul
+ *
+ * See comments miniglx.c for more information.
+ */
+
+#ifndef MINIGLX_H
+#define MINIGLX_H
+
+#include <GL/gl.h>
+#include <stdlib.h>
+
+/**
+ * \name Replacement Xlib/GLX types
+ */
+/*@{*/
+/**
+ * \brief Boolean type.
+ * 
+ * It can have the values #True or #False.
+ */
+typedef int Bool;
+
+/**
+ * \brief Color map.
+ *
+ * Alias for private ::MiniGLXColormapRec structure.
+ */
+typedef struct MiniGLXColormapRec *Colormap;
+
+/**
+ * \brief Window attributes.
+ */
+typedef struct MiniGLXSetWindowAttributesRec {
+   int background_pixel; /**< \brief background pixel */
+   int border_pixel;     /**< \brief border pixel value */
+   Colormap colormap;    /**< \brief color map to be associated with window */
+   int event_mask;       /**< \brief set of events that should be saved */
+} XSetWindowAttributes;
+
+/**
+ * \brief Visual.
+ *
+ * Alias for the private ::MiniGLXVisualRec structure.
+ *
+ * \sa \ref datatypes.
+ */
+typedef struct MiniGLXVisualRec Visual;
+
+/**
+ * \brief Visual information.
+ *
+ * \sa \ref datatypes.
+ */
+typedef unsigned int VisualID;
+typedef struct MiniGLXXVisualInfoRec {
+   Visual *visual;	/**< \brief pointer to the GLX Visual */
+   VisualID visualid;	/**< \brief visual ID */
+   int screen;		/**< \brief screen number */
+   int depth;		/**< \brief bit depth */
+   int class;		/**< \brief class */
+   int bits_per_rgb;	/**< \brief total bits per pixel */
+} XVisualInfo;
+
+/**
+ * \brief Display handle.
+ *
+ * Alias for the private ::MiniGLXDisplayRec structure.
+ *
+ * \sa \ref datatypes.
+ */
+typedef struct MiniGLXDisplayRec   Display;
+
+/**
+ * \brief Window handle.
+ *
+ * Alias for the private ::MiniGLXWindowRec structure.
+ *
+ * \sa \ref datatypes.
+ */
+typedef struct MiniGLXWindowRec   *Window;
+
+/**
+ * \brief Drawable.
+ *
+ * Alias for the private ::MiniGLXWindowRec structure.
+ * 
+ * For Mini GLX only the full-screen window can be used as source and
+ * destination in graphics operations.
+ *
+ * \sa \ref datatypes.
+ */
+typedef struct MiniGLXWindowRec   *Drawable;
+
+/**
+ * \brief GLX drawable.
+ *
+ * Alias for the private ::MiniGLXWindowRec structure.
+ * 
+ * Same as #Drawable.
+ *
+ * \sa \ref datatypes.
+ */
+typedef struct MiniGLXWindowRec   *GLXDrawable;
+
+/**
+ * \brief GLX context.
+ * 
+ * Alias for the private ::MiniGLXContext structure.
+ *
+ * \sa \ref datatypes.
+ */
+typedef struct MiniGLXContextRec  *GLXContext;
+/*@}*/
+
+
+typedef struct {
+	int type;
+	unsigned long serial;	/* # of last request processed by server */
+	Bool send_event;	/* true if this came from a SendEvent request */
+	Display *display;	/* Display the event was read from */
+	Window window;
+	int x, y;
+	int width, height;
+	int count;		/* if non-zero, at least this many more */
+} XExposeEvent;
+
+typedef struct {
+	int type;
+	unsigned long serial;	/* # of last request processed by server */
+	Bool send_event;	/* true if this came from a SendEvent request */
+	Display *display;	/* Display the event was read from */
+	Window parent;		/* parent of the window */
+	Window window;		/* window id of window created */
+	int x, y;		/* window location */
+	int width, height;	/* size of window */
+	int border_width;	/* border width */
+	Bool override_redirect;	/* creation should be overridden */
+} XCreateWindowEvent;
+
+typedef struct {
+	int type;
+	unsigned long serial;	/* # of last request processed by server */
+	Bool send_event;	/* true if this came from a SendEvent request */
+	Display *display;	/* Display the event was read from */
+	Window event;
+	Window window;
+} XDestroyWindowEvent;
+
+typedef struct {
+	int type;
+	unsigned long serial;	/* # of last request processed by server */
+	Bool send_event;	/* true if this came from a SendEvent request */
+	Display *display;	/* Display the event was read from */
+	Window event;
+	Window window;
+	Bool from_configure;
+} XUnmapEvent;
+
+typedef struct {
+	int type;
+	unsigned long serial;	/* # of last request processed by server */
+	Bool send_event;	/* true if this came from a SendEvent request */
+	Display *display;	/* Display the event was read from */
+	Window event;
+	Window window;
+	Bool override_redirect;	/* boolean, is override set... */
+} XMapEvent;
+
+
+typedef struct {
+	int type;
+	unsigned long serial;	/* # of last request processed by server */
+	Bool send_event;	/* true if this came from a SendEvent request */
+	Display *display;	/* Display the event was read from */
+	Window parent;
+	Window window;
+} XMapRequestEvent;
+
+typedef union _XEvent {
+        int type;		/* must not be changed; first element */
+	XExposeEvent xexpose;
+        XCreateWindowEvent xcreatewindow;
+	XDestroyWindowEvent xdestroywindow;
+	XUnmapEvent xunmap;
+	XMapEvent xmap;
+	XMapRequestEvent xmaprequest;
+	long pad[24];
+} XEvent;
+
+
+/**
+ * \name Xlib constants
+ */
+/*@{*/
+#define False                0
+#define True                 1
+#define None                 0
+#define AllocNone            0
+#define InputOutput          1
+#define ExposureMask         (1L<<15) 
+#define StructureNotifyMask  (1L<<17) 
+#define CWBackPixel          (1L<<1)
+#define CWBorderPixel        (1L<<3)
+#define CWEventMask          (1L<<11)
+#define CWColormap           (1L<<13)
+#define PseudoColor          3
+#define TrueColor            4
+#define VisualScreenMask     0x2
+#define Expose		     12
+#define CreateNotify	     16
+#define DestroyNotify	     17
+#define UnmapNotify	     18
+#define MapNotify	     19
+#define MapRequest	     20
+
+/*@}*/
+
+/**
+ * \name Standard GLX tokens
+ */
+/*@{*/
+#define GLX_USE_GL		1
+#define GLX_BUFFER_SIZE		2
+#define GLX_LEVEL		3
+#define GLX_RGBA		4
+#define GLX_DOUBLEBUFFER	5
+#define GLX_STEREO		6
+#define GLX_AUX_BUFFERS		7
+#define GLX_RED_SIZE		8
+#define GLX_GREEN_SIZE		9
+#define GLX_BLUE_SIZE		10
+#define GLX_ALPHA_SIZE		11
+#define GLX_DEPTH_SIZE		12
+#define GLX_STENCIL_SIZE	13
+#define GLX_ACCUM_RED_SIZE	14
+#define GLX_ACCUM_GREEN_SIZE	15
+#define GLX_ACCUM_BLUE_SIZE	16
+#define GLX_ACCUM_ALPHA_SIZE	17
+#define GLX_BAD_ATTRIBUTE       1
+#define GLX_BAD_VISUAL          4
+/*@}*/
+
+
+/**
+ * \name Unique to Mini GLX
+ *
+ * At compile time, the Mini GLX interface version can be tested with the
+ * MINI_GLX_VERSION_1_x preprocessor tokens.
+ *
+ * \sa glXQueryVersion()
+ */
+/*@{*/
+/** \brief Defined if version 1.0 of Mini GLX is supported. */
+#define MINI_GLX_VERSION_1_0    1
+/*@}*/
+
+
+/**
+ * \name Server-specific functions
+ */
+extern Display *
+__miniglx_StartServer( const char *display_name );
+
+extern int
+__miniglx_Select( Display *dpy, int maxfd,
+		  fd_set *rfds, fd_set *wfds, fd_set *xfds,
+		  struct timeval *tv );
+
+
+/**
+ * \name Simulated Xlib functions
+ */
+/*@{*/
+extern Display *
+XOpenDisplay( const char *dpy_name );
+
+
+extern void
+XCloseDisplay( Display *display );
+
+extern Window
+XCreateWindow( Display *display, Window parent, int x, int y,
+               unsigned int width, unsigned int height,
+               unsigned int border_width, int depth, unsigned int class,
+               Visual *visual, unsigned long valuemask,
+               XSetWindowAttributes *attributes );
+
+extern int 
+XNextEvent(Display *display, XEvent *event_return);
+
+extern Bool 
+XCheckMaskEvent( Display *dpy, long event_mask, XEvent *event_return );
+
+/**
+ * \brief Return the root window.
+ * 
+ * \param display the display handle. It is ignored by Mini GLX, but should be
+ * the value returned by XOpenDisplay().
+ * \param screen the screen number on the host server. It is ignored by Mini
+ * GLX but should be zero.
+ *
+ * \return the root window. Always zero on Mini GLX.
+ */
+#define RootWindow(display, screen) 0
+#define DefaultScreen(dpy)  0
+
+extern void
+XDestroyWindow( Display *display, Window w );
+
+extern void
+XMapWindow( Display *display, Window w );
+
+/* Should clients have access to this?
+ */
+extern void
+XUnmapWindow( Display *display, Window w );
+
+extern Colormap
+XCreateColormap( Display *display, Window w, Visual *visual, int alloc );
+
+extern void
+XFreeColormap( Display *display, Colormap cmap );
+
+extern void
+XFree( void *data );
+
+extern XVisualInfo *
+XGetVisualInfo( Display *display, long vinfo_mask, XVisualInfo *vinfo_template, int *nitems_return );
+/*@}*/
+
+
+
+/**
+ * \name GLX functions
+ */
+/*@{*/
+extern XVisualInfo*
+glXChooseVisual( Display *dpy, int screen, int *attribList );
+
+extern int
+glXGetConfig( Display *dpy, XVisualInfo *vis, int attrib, int *value );
+
+extern GLXContext
+glXCreateContext( Display *dpy, XVisualInfo *vis,
+                  GLXContext shareList, Bool direct );
+
+extern void
+glXDestroyContext( Display *dpy, GLXContext ctx );
+
+extern Bool
+glXMakeCurrent( Display *dpy, GLXDrawable drawable, GLXContext ctx);
+
+extern void
+glXSwapBuffers( Display *dpy, GLXDrawable drawable );
+
+extern GLXContext
+glXGetCurrentContext( void );
+
+extern GLXDrawable
+glXGetCurrentDrawable( void );
+
+extern const void *
+glXGetProcAddress( const GLubyte *procname );
+
+extern Bool
+glXQueryVersion( Display *dpy, int *major, int *minor );
+/*@}*/
+
+
+#endif /* MINIGLX_H */