-/* $Id: glxapi.c,v 1.7 1999/11/25 17:37:49 brianp Exp $ */
+/* $Id: glxapi.c,v 1.8 1999/11/28 20:07:33 brianp Exp $ */
/*
* Mesa 3-D graphics library
- * Version: 3.1
+ * Version: 3.3
*
* Copyright (C) 1999 Brian Paul All Rights Reserved.
*
*/
+/*
+ * This is the GLX API dispatcher. Calls to the glX* functions are
+ * either routed to real (SGI / Utah) GLX encoders or to Mesa's
+ * pseudo-GLX module.
+ */
+
+#include <assert.h>
+#include <stdlib.h>
+#include "glxapi.h"
/*
- * GLX API functions which either call fake or real GLX implementations
- *
- * To enable real GLX encoding the REALGLX preprocessor symbol should be
- * defined on the command line.
+ * XXX - this really shouldn't be here.
+ * Instead, add -DUSE_MESA_GLX to the compiler flags when needed.
*/
+#define USE_MESA_GLX 1
-
-#ifdef HAVE_CONFIG_H
-#include "conf.h"
+/* Rather than include possibly non-existant headers... */
+#ifdef USE_SGI_GLX
+extern struct _glxapi_table *_sgi_GetGLXDispatchtable(void);
+#endif
+#ifdef USE_UTAH_GLX
+extern struct _glxapi_table *_utah_GetGLXDispatchTable(void);
+#endif
+#ifdef USE_MESA_GLX
+extern struct _glxapi_table *_mesa_GetGLXDispatchTable(void);
#endif
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include "GL/glx.h"
-#include "fakeglx.h"
-#include "realglx.h"
-#ifdef REALGLX
-static Display *CurrentDisplay = NULL;
-#endif
+struct display_dispatch {
+ Display *Dpy;
+ struct _glxapi_table *Table;
+ struct display_dispatch *Next;
+};
+static struct display_dispatch *DispatchList = NULL;
-/*
- * This functions determines whether a call to a glX*() function should
- * be routed to the "fake" (Mesa) or "real" (GLX-encoder) functions.
- * Input: dpy - the X display.
- * Return: GL_TRUE if the given display supports the real GLX extension,
- * GL_FALSE otherwise.
- */
-static GLboolean display_has_glx( Display *dpy )
+
+static struct _glxapi_table *
+get_dispatch(Display *dpy)
{
- /* TODO: we should use a lookup table to avoid calling XQueryExtension
- * every time.
- */
- int ignore;
- if (XQueryExtension( dpy, "GLX", &ignore, &ignore, &ignore )) {
- return GL_TRUE;
+ static Display *prevDisplay = NULL;
+ static struct _glxapi_table *prevTable = NULL;
+
+ if (!dpy)
+ return NULL;
+
+ /* try cached display */
+ if (dpy == prevDisplay) {
+ return prevTable;
+ }
+
+ /* search list of display/dispatch pairs for this display */
+ {
+ const struct display_dispatch *d = DispatchList;
+ while (d) {
+ if (d->Dpy == dpy) {
+ prevDisplay = dpy;
+ prevTable = d->Table;
+ return d->Table; /* done! */
+ }
+ d = d->Next;
+ }
}
- else {
- return GL_FALSE;
+
+ /* A new display, determine if we should use real GLX (SGI / Utah)
+ * or Mesa's pseudo-GLX.
+ */
+ {
+ struct _glxapi_table *t = NULL;
+
+#if defined(USE_SGI_GLX) || defined(USE_UTAH_GLX)
+ if (!getenv("MESA_FORCE_SOFTX")) {
+ int ignore;
+ if (XQueryExtension( dpy, "GLX", &ignore, &ignore, &ignore )) {
+ /* the X server has the GLX extension */
+#if defined(USE_SGI_GLX)
+ t = _sgi_GetGLXDispatchtable();
+#elif defined(USE_UTAH_GLX)
+ t = _utah_GetGLXDispatchTable();
+#endif
+ }
+ }
+#endif
+
+#if defined(USE_MESA_GLX)
+ if (!t) {
+ t = _mesa_GetGLXDispatchTable();
+ assert(t); /* this has to work */
+ }
+#endif
+
+ if (t) {
+ struct display_dispatch *d;
+ d = (struct display_dispatch *) malloc(sizeof(struct display_dispatch));
+ if (d) {
+ d->Dpy = dpy;
+ d->Table = t;
+ /* insert at head of list */
+ d->Next = DispatchList;
+ DispatchList = d;
+ /* update cache */
+ prevDisplay = dpy;
+ prevTable = t;
+ return t;
+ }
+ }
}
+
+ /* If we get here that means we can't use real GLX on this display
+ * and the Mesa pseudo-GLX software renderer wasn't compiled in.
+ * Or, we ran out of memory!
+ */
+ return NULL;
}
-XVisualInfo *glXChooseVisual( Display *dpy, int screen, int *list )
+/* Set by glXMakeCurrent() and glXMakeContextCurrent() only */
+static Display *CurrentDisplay = NULL;
+static GLXContext CurrentContext = 0;
+static GLXDrawable CurrentDrawable = 0;
+static GLXDrawable CurrentReadDrawable = 0;
+
+
+
+/*
+ * GLX API entrypoints
+ */
+
+
+XVisualInfo *glXChooseVisual(Display *dpy, int screen, int *list)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- return Real_glXChooseVisual( dpy, screen, list );
- else
-#endif
- return Fake_glXChooseVisual( dpy, screen, list );
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return NULL;
+ return (t->ChooseVisual)(dpy, screen, list);
}
+void glXCopyContext(Display *dpy, GLXContext src, GLXContext dst, GLuint mask)
+{
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return;
+ (t->CopyContext)(dpy, src, dst, mask);
+}
+
-int glXGetConfig( Display *dpy, XVisualInfo *visinfo, int attrib, int *value )
+GLXContext glXCreateContext(Display *dpy, XVisualInfo *visinfo, GLXContext shareList, Bool direct)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- return Real_glXGetConfig( dpy, visinfo, attrib, value );
- else
-#endif
- return Fake_glXGetConfig( dpy, visinfo, attrib, value );
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return 0;
+ return (t->CreateContext)(dpy, visinfo, shareList, direct);
}
+GLXPixmap glXCreateGLXPixmap(Display *dpy, XVisualInfo *visinfo, Pixmap pixmap)
+{
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return 0;
+ return (t->CreateGLXPixmap)(dpy, visinfo, pixmap);
+}
+
-GLXContext glXCreateContext( Display *dpy, XVisualInfo *visinfo,
- GLXContext shareList, Bool direct )
+void glXDestroyContext(Display *dpy, GLXContext ctx)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- return Real_glXCreateContext( dpy, visinfo, shareList, direct );
- else
-#endif
- return Fake_glXCreateContext( dpy, visinfo, shareList, direct );
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return;
+ (t->DestroyContext)(dpy, ctx);
}
+void glXDestroyGLXPixmap(Display *dpy, GLXPixmap pixmap)
+{
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return;
+ (t->DestroyGLXPixmap)(dpy, pixmap);
+}
+
-void glXDestroyContext( Display *dpy, GLXContext ctx )
+int glXGetConfig(Display *dpy, XVisualInfo *visinfo, int attrib, int *value)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- Real_glXDestroyContext( dpy, ctx );
- else
-#endif
- Fake_glXDestroyContext( dpy, ctx );
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return GLX_NO_EXTENSION;
+ return (t->GetConfig)(dpy, visinfo, attrib, value);
}
+GLXContext glXGetCurrentContext(void)
+{
+ return CurrentContext;
+}
+
-void glXCopyContext( Display *dpy, GLXContext src, GLXContext dst,
- GLuint mask )
+GLXDrawable glXGetCurrentDrawable(void)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- Real_glXCopyContext( dpy, src, dst, mask );
- else
-#endif
- Fake_glXCopyContext( dpy, src, dst, mask );
+ return CurrentDrawable;
}
+Bool glXIsDirect(Display *dpy, GLXContext ctx)
+{
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return False;
+ return (t->IsDirect)(dpy, ctx);
+}
+
-Bool glXMakeCurrent( Display *dpy, GLXDrawable drawable, GLXContext ctx )
+Bool glXMakeCurrent(Display *dpy, GLXDrawable drawable, GLXContext ctx)
{
-#ifdef REALGLX
- if (display_has_glx(dpy)) {
- if (Real_glXMakeCurrent( dpy, drawable, ctx )) {
- CurrentDisplay = dpy;
- return True;
- }
- else {
- return False;
- }
- }
- else {
- if (Fake_glXMakeCurrent( dpy, drawable, ctx )) {
- CurrentDisplay = dpy;
- return True;
- }
- else {
- return False;
- }
+ Bool b;
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return False;
+ b = (*t->MakeCurrent)(dpy, drawable, ctx);
+ if (b) {
+ CurrentDisplay = dpy;
+ CurrentContext = ctx;
+ CurrentDrawable = drawable;
+ CurrentReadDrawable = drawable;
}
-#else
- return Fake_glXMakeCurrent( dpy, drawable, ctx );
-#endif
+ return b;
}
-
-GLXContext glXGetCurrentContext( void )
+Bool glXQueryExtension(Display *dpy, int *errorb, int *event)
{
-#ifdef REALGLX
- if (display_has_glx(CurrentDisplay))
- return Real_glXGetCurrentContext();
- else
-#endif
- return Fake_glXGetCurrentContext();
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return False;
+ return (t->QueryExtension)(dpy, errorb, event);
}
-
-GLXDrawable glXGetCurrentDrawable( void )
+Bool glXQueryVersion(Display *dpy, int *maj, int *min)
{
-#ifdef REALGLX
- if (display_has_glx(CurrentDisplay))
- return Real_glXGetCurrentDrawable();
- else
-#endif
- return Fake_glXGetCurrentDrawable();
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return False;
+ return (t->QueryVersion)(dpy, maj, min);
}
-
-GLXPixmap glXCreateGLXPixmap( Display *dpy, XVisualInfo *visinfo,
- Pixmap pixmap )
+void glXSwapBuffers(Display *dpy, GLXDrawable drawable)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- return Real_glXCreateGLXPixmap( dpy, visinfo, pixmap );
- else
-#endif
- return Fake_glXCreateGLXPixmap( dpy, visinfo, pixmap );
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return;
+ (t->SwapBuffers)(dpy, drawable);
}
-void glXDestroyGLXPixmap( Display *dpy, GLXPixmap pixmap )
+void glXUseXFont(Font font, int first, int count, int listBase)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- Real_glXDestroyGLXPixmap( dpy, pixmap );
- else
-#endif
- Fake_glXDestroyGLXPixmap( dpy, pixmap );
+ struct _glxapi_table *t = get_dispatch(CurrentDisplay);
+ if (!t)
+ return;
+ (t->UseXFont)(font, first, count, listBase);
}
-
-Bool glXQueryExtension( Display *dpy, int *errorb, int *event )
+void glXWaitGL(void)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- return Real_glXQueryExtension( dpy, errorb, event );
- else
-#endif
- return Fake_glXQueryExtension( dpy, errorb, event );
+ struct _glxapi_table *t = get_dispatch(CurrentDisplay);
+ if (!t)
+ return;
+ (t->WaitGL)();
}
-
-Bool glXIsDirect( Display *dpy, GLXContext ctx )
+void glXWaitX(void)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- return Real_glXIsDirect( dpy, ctx );
- else
-#endif
- return Fake_glXIsDirect( dpy, ctx );
+ struct _glxapi_table *t = get_dispatch(CurrentDisplay);
+ if (!t)
+ return;
+ (t->WaitX)();
}
-void glXSwapBuffers( Display *dpy, GLXDrawable drawable )
+#ifdef _GLXAPI_VERSION_1_1
+
+const char *glXGetClientString(Display *dpy, int name)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- Real_glXSwapBuffers( dpy, drawable );
- else
-#endif
- Fake_glXSwapBuffers( dpy, drawable );
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return NULL;
+ return (t->GetClientString)(dpy, name);
}
+const char *glXQueryExtensionsString(Display *dpy, int screen)
+{
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return NULL;
+ return (t->QueryExtensionsString)(dpy, screen);
+}
+
-void glXCopySubBufferMESA( Display *dpy, GLXDrawable drawable,
- int x, int y, int width, int height )
+const char *glXQueryServerString(Display *dpy, int screen, int name)
{
-#ifdef REALGLX
- /* can't implement! */
- return;
-#endif
- Fake_glXCopySubBufferMESA( dpy, drawable, x, y, width, height );
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return NULL;
+ return (t->QueryServerString)(dpy, screen, name);
}
+#endif
+
-Bool glXQueryVersion( Display *dpy, int *maj, int *min )
+#ifdef _GLXAPI_VERSION_1_2
+Display *glXGetCurrentDisplay(void)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- return Real_glXQueryVersion( dpy, maj, min );
- else
-#endif
- return Fake_glXQueryVersion( dpy, maj, min );
+ return CurrentDisplay;
}
+#endif
+
+#ifdef _GLXAPI_VERSION_1_3
-void glXUseXFont( Font font, int first, int count, int listBase )
+GLXFBConfig glXChooseFBConfig(Display *dpy, int screen, const int *attribList, int *nitems)
{
-#ifdef REALGLX
- if (display_has_glx(CurrentDisplay))
- Real_glXUseXFont( font, first, count, listBase );
- else
-#endif
- Fake_glXUseXFont( font, first, count, listBase );
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return 0;
+ return (t->ChooseFBConfig)(dpy, screen, attribList, nitems);
}
-void glXWaitGL( void )
+GLXContext glXCreateNewContext(Display *dpy, GLXFBConfig config, int renderType, GLXContext shareList, Bool direct)
{
-#ifdef REALGLX
- if (display_has_glx(CurrentDisplay))
- Real_glXWaitGL();
- else
-#endif
- Fake_glXWaitGL();
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return 0;
+ return (t->CreateNewContext)(dpy, config, renderType, shareList, direct);
}
-
-void glXWaitX( void )
+GLXPbuffer glXCreatePbuffer(Display *dpy, GLXFBConfig config, const int *attribList)
{
-#ifdef REALGLX
- if (display_has_glx(CurrentDisplay))
- Real_glXWaitX();
- else
-#endif
- Fake_glXWaitX();
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return 0;
+ return (t->CreatePbuffer)(dpy, config, attribList);
}
-
-/* GLX 1.1 and later */
-const char *glXQueryExtensionsString( Display *dpy, int screen )
+GLXPixmap glXCreatePixmap(Display *dpy, GLXFBConfig config, Pixmap pixmap, const int *attribList)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- return Real_glXQueryExtensionsString( dpy, screen );
- else
-#endif
- return Fake_glXQueryExtensionsString( dpy, screen );
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return 0;
+ return (t->CreatePixmap)(dpy, config, pixmap, attribList);
}
-
-/* GLX 1.1 and later */
-const char *glXQueryServerString( Display *dpy, int screen, int name )
+GLXWindow glXCreateWindow(Display *dpy, GLXFBConfig config, Window win, const int *attribList)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- return Real_glXQueryServerString( dpy, screen, name );
- else
-#endif
- return Fake_glXQueryServerString( dpy, screen, name );
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return 0;
+ return (t->CreateWindow)(dpy, config, win, attribList);
}
-
-/* GLX 1.1 and later */
-const char *glXGetClientString( Display *dpy, int name )
+void glXDestroyPbuffer(Display *dpy, GLXPbuffer pbuf)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- return Real_glXGetClientString( dpy, name );
- else
-#endif
- return Fake_glXGetClientString( dpy, name );
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return;
+ (t->DestroyPbuffer)(dpy, pbuf);
}
-
-/* GLX 1.2 and later */
-Display *glXGetCurrentDisplay( void )
+void glXDestroyPixmap(Display *dpy, GLXPixmap pixmap)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- return Real_glXGetCurrentDisplay();
- else
-#endif
- return Fake_glXGetCurrentDisplay();
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return;
+ (t->DestroyPixmap)(dpy, pixmap);
}
-
-/*
- * GLX 1.3 and later
- * XXX these are just no-op stubs for now.
- */
-GLXFBConfig glXChooseFBConfig( Display *dpy, int screen,
- const int *attribList, int *nitems )
+void glXDestroyWindow(Display *dpy, GLXWindow window)
{
- (void) dpy;
- (void) screen;
- (void) attribList;
- (void) nitems;
- return 0;
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return;
+ (t->DestroyWindow)(dpy, window);
}
-int glXGetFBConfigAttrib( Display *dpy, GLXFBConfig config,
- int attribute, int *value )
+GLXDrawable glXGetCurrentReadDrawable(void)
{
- (void) dpy;
- (void) config;
- (void) attribute;
- (void) value;
- return 0;
+ return CurrentReadDrawable;
}
-XVisualInfo *glXGetVisualFromFBConfig( Display *dpy, GLXFBConfig config )
+int glXGetFBConfigAttrib(Display *dpy, GLXFBConfig config, int attribute, int *value)
{
- (void) dpy;
- (void) config;
- return 0;
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return GLX_NO_EXTENSION;
+ return (t->GetFBConfigAttrib)(dpy, config, attribute, value);
}
-GLXWindow glXCreateWindow( Display *dpy, GLXFBConfig config, Window win,
- const int *attribList )
+void glXGetSelectedEvent(Display *dpy, GLXDrawable drawable, unsigned long *mask)
{
- (void) dpy;
- (void) config;
- (void) win;
- (void) attribList;
- return 0;
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return;
+ (t->GetSelectedEvent)(dpy, drawable, mask);
}
-void glXDestroyWindow( Display *dpy, GLXWindow window )
+XVisualInfo *glXGetVisualFromFBConfig(Display *dpy, GLXFBConfig config)
{
- (void) dpy;
- (void) window;
- return;
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return NULL;
+ return (t->GetVisualFromFBConfig)(dpy, config);
}
-GLXPixmap glXCreatePixmap( Display *dpy, GLXFBConfig config, Pixmap pixmap,
- const int *attribList )
+Bool glXMakeContextCurrent(Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx)
{
- (void) dpy;
- (void) config;
- (void) pixmap;
- (void) attribList;
- return 0;
+ struct _glxapi_table *t = get_dispatch(dpy);
+ Bool b;
+ if (!t)
+ return False;
+ b = (t->MakeContextCurrent)(dpy, draw, read, ctx);
+ if (b) {
+ CurrentDisplay = dpy;
+ CurrentContext = ctx;
+ CurrentDrawable = draw;
+ CurrentReadDrawable = read;
+ }
+ return b;
}
-void glXDestroyPixmap( Display *dpy, GLXPixmap pixmap )
+int glXQueryContext(Display *dpy, GLXContext ctx, int attribute, int *value)
{
- (void) dpy;
- (void) pixmap;
- return;
+ struct _glxapi_table *t = get_dispatch(dpy);
+ assert(t);
+ if (!t)
+ return 0; /* XXX correct? */
+ return (t->QueryContext)(dpy, ctx, attribute, value);
}
-GLXPbuffer glXCreatePbuffer( Display *dpy, GLXFBConfig config,
- const int *attribList )
+void glXQueryDrawable(Display *dpy, GLXDrawable draw, int attribute, unsigned int *value)
{
- (void) dpy;
- (void) config;
- (void) attribList;
- return 0;
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return;
+ (t->QueryDrawable)(dpy, draw, attribute, value);
}
-void glXDestroyPbuffer( Display *dpy, GLXPbuffer pbuf )
+void glXSelectEvent(Display *dpy, GLXDrawable drawable, unsigned long mask)
{
- (void) dpy;
- (void) pbuf;
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return;
+ (t->SelectEvent)(dpy, drawable, mask);
}
+#endif /* _GLXAPI_VERSION_1_3 */
-void glXQueryDrawable( Display *dpy, GLXDrawable draw, int attribute,
- unsigned int *value )
+
+#ifdef _GLXAPI_EXT_import_context
+
+void glXFreeContextEXT(Display *dpy, GLXContext context)
{
- (void) dpy;
- (void) draw;
- (void) attribute;
- (void) value;
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return;
+ (t->FreeContextEXT)(dpy, context);
}
-GLXContext glXCreateNewContext( Display *dpy, GLXFBConfig config,
- int renderType, GLXContext shareList,
- Bool direct )
+GLXContextID glXGetContextIDEXT(const GLXContext context)
{
- (void) dpy;
- (void) config;
- (void) renderType;
- (void) shareList;
- (void) direct;
- return 0;
+ /* XXX is this function right? */
+ struct _glxapi_table *t = get_dispatch(CurrentDisplay);
+ if (!t)
+ return 0;
+ return (t->GetContextIDEXT)(context);
}
-Bool glXMakeContextCurrent( Display *dpy, GLXDrawable draw, GLXDrawable read,
- GLXContext ctx )
+Display *glXGetCurrentDisplayEXT(void)
{
-#ifdef REALGX
- if (display_has_glx(dpy))
- return Real_glXMakeContextCurrent(dpy, draw, read, ctx);
- else
-#endif
- return Fake_glXMakeContextCurrent(dpy, draw, read, ctx);
+ return CurrentDisplay;
}
-GLXDrawable glXGetCurrentReadDrawable( void )
+GLXContext glXImportContextEXT(Display *dpy, GLXContextID contextID)
{
-#ifdef REALGX
- if (display_has_glx(dpy))
- return Real_glXGetCurrentReadDrawable();
- else
-#endif
- return Fake_glXGetCurrentReadDrawable();
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return 0;
+ return (t->ImportContextEXT)(dpy, contextID);
}
-
-int glXQueryContext( Display *dpy, GLXContext ctx, int attribute, int *value )
+int glXQueryContextInfoEXT(Display *dpy, GLXContext context, int attribute,int *value)
{
- (void) dpy;
- (void) ctx;
- (void) attribute;
- (void) value;
- return 0;
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return 0; /* XXX ok? */
+ return (t->QueryContextInfoEXT)(dpy, context, attribute, value);
}
+#endif
+
+
+#ifdef _GLXAPI_SGI_video_sync
-void glXSelectEvent( Display *dpy, GLXDrawable drawable, unsigned long mask )
+int glXGetVideoSyncSGI(unsigned int *count)
{
- (void) dpy;
- (void) drawable;
- (void) mask;
+ struct _glxapi_table *t = get_dispatch(CurrentDisplay);
+ if (!t)
+ return 0;
+ return (t->GetVideoSyncSGI)(count);
}
-void glXGetSelectedEvent( Display *dpy, GLXDrawable drawable,
- unsigned long *mask )
+int glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count)
{
- (void) dpy;
- (void) drawable;
- (void) mask;
+ struct _glxapi_table *t = get_dispatch(CurrentDisplay);
+ if (!t)
+ return 0;
+ return (t->WaitVideoSyncSGI)(divisor, remainder, count);
}
+#endif
+#ifdef _GLXAPI_MESA_copy_sub_buffer
-#ifdef GLX_MESA_release_buffers
-Bool glXReleaseBuffersMESA( Display *dpy, Window w )
+void glXCopySubBufferMESA(Display *dpy, GLXDrawable drawable, int x, int y, int width, int height)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
- return GL_FALSE;
- else
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return;
+ (t->CopySubBufferMESA)(dpy, drawable, x, y, width, height);
+}
+
#endif
- return Fake_glXReleaseBuffersMESA( dpy, w );
+
+
+#ifdef _GLXAPI_MESA_release_buffers
+
+Bool glXReleaseBuffersMESA(Display *dpy, Window w)
+{
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
+ return False;
+ return (t->ReleaseBuffersMESA)(dpy, w);
}
+
#endif
-#ifdef GLX_MESA_pixmap_colormap
-GLXPixmap glXCreateGLXPixmapMESA( Display *dpy, XVisualInfo *visinfo,
- Pixmap pixmap, Colormap cmap )
+#ifdef _GLXAPI_MESA_pixmap_colormap
+
+GLXPixmap glXCreateGLXPixmapMESA(Display *dpy, XVisualInfo *visinfo, Pixmap pixmap, Colormap cmap)
{
-#ifdef REALGLX
- if (display_has_glx(dpy))
+ struct _glxapi_table *t = get_dispatch(dpy);
+ if (!t)
return 0;
- else
+ return (t->CreateGLXPixmapMESA)(dpy, visinfo, pixmap, cmap);
+}
+
#endif
- return Fake_glXCreateGLXPixmapMESA( dpy, visinfo, pixmap, cmap );
+
+
+#ifdef _GLXAPI_MESA_set_3dfx_mode
+
+GLboolean glXSet3DfxModeMESA(GLint mode)
+{
+ struct _glxapi_table *t = get_dispatch(CurrentDisplay);
+ if (!t)
+ return False;
+ return (t->Set3DfxModeMESA)(mode);
}
+
#endif
-#ifdef GLX_SGI_video_sync
+/**********************************************************************/
+/* GLX API management functions */
+/**********************************************************************/
+
+
+const char *
+_glxapi_get_version(void)
+{
+ return "1.3";
+}
+
/*
- * This function doesn't really do anything. But, at least one
- * application uses the function so this stub is useful.
+ * Return array of extension strings.
*/
-int glXGetVideoSyncSGI(unsigned int *count)
+const char **
+_glxapi_get_extensions(void)
{
- static unsigned int counter = 0;
- *count = counter++;
- return 0;
+ static const char *extensions[] = {
+#ifdef _GLXAPI_EXT_import_context
+ "GLX_EXT_import_context",
+#endif
+#ifdef _GLXAPI_SGI_video_sync
+ "GLX_SGI_video_sync",
+#endif
+#ifdef _GLXAPI_MESA_copy_sub_buffer
+ "GLX_MESA_copy_sub_buffer",
+#endif
+#ifdef _GLXAPI_MESA_release_buffers
+ "GLX_MESA_release_buffers",
+#endif
+#ifdef _GLXAPI_MESA_pixmap_colormap
+ "GLX_MESA_pixmap_colormap",
+#endif
+#ifdef _GLXAPI_MESA_set_3dfx_mode
+ "GLX_MESA_set_3dfx_mode",
+#endif
+ NULL
+ };
+ return extensions;
}
/*
- * Again, this is really just a stub function.
+ * Return size of the GLX dispatch table, in entries, not bytes.
*/
-int glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count)
+GLuint
+_glxapi_get_dispatch_table_size(void)
+{
+ return sizeof(struct _glxapi_table) / sizeof(void *);
+}
+
+
+static int
+generic_no_op_func(void)
{
- static unsigned int counter = 0;
- while (counter % divisor != remainder)
- counter++;
- *count = counter;
return 0;
}
+
+/*
+ * Initialize all functions in given dispatch table to be no-ops
+ */
+void
+_glxapi_set_no_op_table(struct _glxapi_table *t)
+{
+ GLuint n = _glxapi_get_dispatch_table_size();
+ GLuint i;
+ void **dispatch = (void **) t;
+ for (i = 0; i < n; i++) {
+ dispatch[i] = (void *) generic_no_op_func;
+ }
+}
+
+
+
+struct name_address_pair {
+ const char *Name;
+ GLvoid *Address;
+};
+
+static struct name_address_pair GLX_functions[] = {
+ { "glXChooseVisual", (GLvoid *) glXChooseVisual },
+ { "glXCopyContext", (GLvoid *) glXCopyContext },
+ { "glXCreateContext", (GLvoid *) glXCreateContext },
+ { "glXCreateGLXPixmap", (GLvoid *) glXCreateGLXPixmap },
+ { "glXDestroyContext", (GLvoid *) glXDestroyContext },
+ { "glXDestroyGLXPixmap", (GLvoid *) glXDestroyGLXPixmap },
+ { "glXGetConfig", (GLvoid *) glXGetConfig },
+ { "glXIsDirect", (GLvoid *) glXIsDirect },
+ { "glXMakeCurrent", (GLvoid *) glXMakeCurrent },
+ { "glXQueryExtension", (GLvoid *) glXQueryExtension },
+ { "glXQueryVersion", (GLvoid *) glXQueryVersion },
+ { "glXSwapBuffers", (GLvoid *) glXSwapBuffers },
+ { "glXUseXFont", (GLvoid *) glXUseXFont },
+ { "glXWaitGL", (GLvoid *) glXWaitGL },
+ { "glXWaitX", (GLvoid *) glXWaitX },
+
+#ifdef _GLXAPI_VERSION_1_1
+ { "glXGetClientString", (GLvoid *) glXGetClientString },
+ { "glXQueryExtensionsString", (GLvoid *) glXQueryExtensionsString },
+ { "glXQueryServerString", (GLvoid *) glXQueryServerString },
#endif
+#ifdef _GLXAPI_VERSION_1_2
+ /*{ "glXGetCurrentDisplay", (GLvoid *) glXGetCurrentDisplay },*/
+#endif
+#ifdef _GLXAPI_VERSION_1_3
+ { "glXChooseFBConfig", (GLvoid *) glXChooseFBConfig },
+ { "glXCreateNewContext", (GLvoid *) glXCreateNewContext },
+ { "glXCreatePbuffer", (GLvoid *) glXCreatePbuffer },
+ { "glXCreatePixmap", (GLvoid *) glXCreatePixmap },
+ { "glXCreateWindow", (GLvoid *) glXCreateWindow },
+ { "glXDestroyPbuffer", (GLvoid *) glXDestroyPbuffer },
+ { "glXDestroyPixmap", (GLvoid *) glXDestroyPixmap },
+ { "glXDestroyWindow", (GLvoid *) glXDestroyWindow },
+ { "glXGetFBConfigAttrib", (GLvoid *) glXGetFBConfigAttrib },
+ { "glXGetSelectedEvent", (GLvoid *) glXGetSelectedEvent },
+ { "glXGetVisualFromFBConfig", (GLvoid *) glXGetVisualFromFBConfig },
+ { "glXMakeContextCurrent", (GLvoid *) glXMakeContextCurrent },
+ { "glXQueryContext", (GLvoid *) glXQueryContext },
+ { "glXQueryDrawable", (GLvoid *) glXQueryDrawable },
+ { "glXSelectEvent", (GLvoid *) glXSelectEvent },
+#endif
-#ifdef GLX_MESA_set_3dfx_mode
-GLboolean glXSet3DfxModeMESA( GLint mode )
-{
-#ifdef REALGLX
- return GL_FALSE;
-#else
- return Fake_glXSet3DfxModeMESA( mode );
+#ifdef _GLXAPI_SGI_video_sync
+ { "glXGetVideoSyncSGI", (GLvoid *) glXGetVideoSyncSGI },
+ { "glXWaitVideoSyncSGI", (GLvoid *) glXWaitVideoSyncSGI },
#endif
-}
+
+#ifdef _GLXAPI_MESA_copy_sub_buffer
+ { "glXCopySubBufferMESA", (GLvoid *) glXCopySubBufferMESA },
#endif
+#ifdef _GLXAPI_MESA_release_buffers
+ { "glXReleaseBuffersMESA", (GLvoid *) glXReleaseBuffersMESA },
+#endif
+
+#ifdef _GLXAPI_MESA_pixmap_colormap
+ { "glXCreateGLXPixmapMESA", (GLvoid *) glXCreateGLXPixmapMESA },
+#endif
+
+#ifdef _GLXAPI_MESA_set_3dfx_mode
+ { "glXSet3DfxModeMESA", (GLvoid *) glXSet3DfxModeMESA },
+#endif
+
+ { NULL, NULL } /* end of list */
+};
+
-#if 0 /* spec for this not finalized yet */
-void (*glXGetProcAddressEXT( const GLubyte *procName ))()
+/*
+ * Return address of named glX function, or NULL if not found.
+ */
+const GLvoid *
+_glxapi_get_proc_address(const char *funcName)
{
-#ifdef REALGLX
+ GLuint i;
+ for (i = 0; GLX_functions[i].Name; i++) {
+ if (strcmp(GLX_functions[i].Name, funcName) == 0)
+ return GLX_functions[i].Address;
+ }
return NULL;
-#else
- return Fake_glXGetProcAddress( procName );
-#endif
}
-#endif
projects / mesa.git / commitdiff