the long time needed 3dfxstub.so

tools/3dfx_stub/3dfxstub.h

@@ -0,0 +1,37 @@
+/*
+	3dfxstub.h
+
+	Dummy header to avoid glide/mesa linking for 3Dfxstub.so
+
+	Copyright (C)2002 Chris Ison wildcode@users.sourceforge.net
+
+	This file is part of Quakeforge and lib3Dfxgl.
+
+	WildMidi is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	WildMidi 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 General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with Quakeforge and lib3Dfxgl; if not, write to:
+	
+		Free Software Foundation, Inc.
+		59 Temple Place - Suite 330
+		Boston, MA  02111-1307, USA
+
+	$Id$
+*/
+
+
+typedef int GrScreenResolution_t;
+typedef int GrScreenRefresh_t;
+typedef struct {
+	        int i;
+} *fxMesaContext;
+

tools/3dfx_stub/build

@@ -0,0 +1,4 @@
+#! /bin/sh
+
+gcc -o 3Dfxstub.so -g -fPIC -shared -O3 -ffast-math -funroll-loops -fomit-frame-pointer -fexpensive-optimizations gl_stub.c gls_norm.c gls_trace.c
+

tools/3dfx_stub/gl_stub.c

@@ -0,0 +1,111 @@
+/*
+	gl_stub.c
+	
+	Dummy glXGetProcAddressARB function
+
+	Copyright (C)2001 Bill Currie <bill@taniwha.org>
+	Copyright (C)2002 Chris Ison wildcode@users.sourceforge.net
+	
+	This file is part of lib3Dfxgl and Quakeforge.
+
+	WildMidi is free software; you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation; either version 2 of the License, or
+	(at your option) any later version.
+
+	WildMidi 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 General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with Quakeforge and lib3Dfxgl; if not, write to:
+	
+		Free Software Foundation, Inc.
+		59 Temple Place - Suite 330
+		Boston, MA  02111-1307, USA
+
+	$Id$
+*/
+
+
+#include <stdlib.h>
+#include "3dfxstub.h"
+#include "QF/GL/defines.h"
+#include "QF/GL/extensions.h"
+#include "QF/GL/types.h"
+
+#include "QF/hash.h"
+
+#define QFGL_DONT_NEED(ret, func, params) QFGL_NEED(ret, func, params)
+
+#undef QFGL_NEED
+
+#define QFGL_NEED(ret, name, args) \
+ret GLAPIENTRY norm_##name args;
+#include "QF/GL/qf_funcs_list.h"
+#undef QFGL_NEED
+fxMesaContext norm_fxMesaCreateContext (GLuint win, GrScreenResolution_t res, GrScreenRefresh_t ref, const GLint attribList[]);
+void norm_fxMesaMakeCurrent(fxMesaContext fxMesa);
+void norm_fxMesaDestroyContext(fxMesaContext fxMesa);
+void norm_fxMesaSwapBuffers(void);
+
+#define QFGL_NEED(ret, name, args) \
+ret GLAPIENTRY trace_##name args;
+#include "QF/GL/qf_funcs_list.h"
+#undef QFGL_NEED
+fxMesaContext trace_fxMesaCreateContext (GLuint win, GrScreenResolution_t res, GrScreenRefresh_t ref, const GLint attribList[]);
+void trace_fxMesaMakeCurrent(fxMesaContext fxMesa);
+void trace_fxMesaDestroyContext(fxMesaContext fxMesa);
+void trace_fxMesaSwapBuffers(void);
+
+typedef struct {
+	const char *name;
+	void       *norm;
+	void       *trace;
+} gl_stub_t;
+
+static gl_stub_t gl_stub_funcs[] = {
+#define QFGL_NEED(ret, name, args) \
+	{#name, norm_##name, trace_##name},
+#include "QF/GL/qf_funcs_list.h"
+#undef QFGL_NEED
+	{"fxMesaCreateContext", norm_fxMesaCreateContext, trace_fxMesaCreateContext},
+	{"fxMesaMakeCurrent", norm_fxMesaMakeCurrent, trace_fxMesaMakeCurrent},
+	{"fxMesaDestroyContext", norm_fxMesaDestroyContext, trace_fxMesaDestroyContext},
+	{"fxMesaSwapBuffers", norm_fxMesaSwapBuffers, trace_fxMesaSwapBuffers},
+};
+
+#define NUM_FUNCS (sizeof (gl_stub_funcs) / sizeof (gl_stub_funcs[0]))
+
+static int
+cmp (const void *a, const void *b)
+{
+	return strcmp (((gl_stub_t *)a)->name, ((gl_stub_t *)b)->name);
+}
+
+void *
+glXGetProcAddressARB (const GLubyte *procName)
+{
+	static int  called;
+	static int  trace;
+	gl_stub_t  *stub;
+	gl_stub_t   key;
+
+	if (!called) {
+		char       *glstub_trace;
+
+		qsort (gl_stub_funcs, NUM_FUNCS, sizeof (gl_stub_t), cmp);
+		called = 1;
+
+		glstub_trace = getenv ("GLSTUB_TRACE");
+		if (glstub_trace)
+			trace = atoi (glstub_trace);
+	}
+	key.name = procName;
+	stub = bsearch (&key, gl_stub_funcs, NUM_FUNCS, sizeof (gl_stub_t), cmp);
+	if (!stub)
+		return 0;
+	return trace ? stub->trace : stub->norm;
+}