Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 153 insertions, 0 deletions

diff --git a/nx-X11/lib/GL/apple/dri_dispatch.c b/nx-X11/lib/GL/apple/dri_dispatch.c
new file mode 100644
index 000000000..8e5c4ddfd
--- /dev/null
+++ b/nx-X11/lib/GL/apple/dri_dispatch.c
@@ -0,0 +1,153 @@
+/* dri_dispatch.c
+   $Id: dri_dispatch.c,v 1.5 2005/07/03 07:00:55 daniels Exp $
+
+   Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
+   Copyright (c) Torrey T. Lyons. 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 THE THE ABOVE LISTED COPYRIGHT
+   HOLDER(S) 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.
+
+   Except as contained in this notice, the name(s) of the above
+   copyright holders shall not be used in advertising or otherwise to
+   promote the sale, use or other dealings in this Software without
+   prior written authorization. */
+/* $XFree86: xc/lib/GL/apple/dri_dispatch.c,v 1.4 2004/04/21 04:59:40 torrey Exp $ */
+
+#include <OpenGL/OpenGL.h>
+#include <OpenGL/CGLContext.h>
+
+/* We use Apple's GL headers, but as of Panther its glext.h
+   did not define the following. */
+#ifndef GL_ARB_vertex_buffer_object
+#include <stddef.h>
+typedef ptrdiff_t GLintptrARB;
+typedef ptrdiff_t GLsizeiptrARB;
+#endif
+
+#define GLAPIENTRYP *
+#include "glapi.h"
+#include "glapitable.h"
+#include "glxclient.h"
+
+#include <Xlibint.h>
+#include <stdio.h>
+
+#ifdef __GNUC__
+# define GCC_VERSION (__GNUC__ * 1000 + __GNUC_MINOR__)
+#else
+# define GCC_VERSION 0
+#endif
+
+#if GCC_VERSION < 3000
+# define __builtin_expect(a, b) a
+#endif
+
+static int indirect_noop (void)
+{
+    return 0;
+}
+
+/* Macro used for gl functions that exist in OpenGL.framework. We'll
+   use the existing stub for the initial dispatch, but need this
+   function to handle indirect contexts. */
+#define DEFUN_LOCAL_1(ret, return, gn, proto, args)		\
+static ret indirect__ ## gn proto				\
+{								\
+    struct _glapi_table *disp;					\
+								\
+    disp = _glapi_Dispatch;					\
+    if (__builtin_expect (disp == NULL, 0))			\
+	disp = _glapi_get_dispatch ();				\
+								\
+    return (*disp->gn) args;					\
+}
+
+/* Macro used for gl functions that don't exist in OpenGL.framework.
+   We drop them on the floor in direct rendering mode, but pass them
+   over the wire normally for indirect contexts. */
+#define DEFUN_EXTERN_1(ret, return, gn, proto, args)		\
+ret gl ## gn proto						\
+{								\
+    __GLXcontext *gc;						\
+    struct _glapi_table *disp;					\
+								\
+    gc = __glXGetCurrentContext ();				\
+    if (!gc->isDirect) {					\
+	disp = _glapi_Dispatch;					\
+	if (__builtin_expect (disp == NULL, 0))			\
+	    disp = _glapi_get_dispatch ();			\
+								\
+	return (*disp->gn) args;				\
+    } else {							\
+	int a = 0; return (ret) a;				\
+    }								\
+}
+
+/* Macro for functions that already exist, but with a different name. */
+#define DEFUN_ALIAS_1(ret, return, gn, on, proto, args)	\
+ret gl ## gn proto					\
+{							\
+    return gl ## on args;				\
+}
+
+#define DEFUN_LOCAL(r, gn, p, a) \
+    DEFUN_LOCAL_1 (r, return, gn, p, a)
+#define DEFUN_LOCAL_VOID(gn, p, a) \
+    DEFUN_LOCAL_1 (void, , gn, p, a)
+
+#define DEFUN_EXTERN(r, gn, p, a) \
+    DEFUN_EXTERN_1 (r, return, gn, p, a)
+#define DEFUN_EXTERN_VOID(gn, p, a) \
+    DEFUN_EXTERN_1 (void, , gn, p, a)
+
+#define DEFUN_ALIAS(r, gn, on, p, a) \
+    DEFUN_ALIAS_1 (r, return, gn, on, p, a)
+#define DEFUN_ALIAS_VOID(gn, on, p, a) \
+    DEFUN_ALIAS_1 (void, , gn, on, p, a)
+
+#include "dri_dispatch.h"
+
+__private_extern__ const CGLContextObj
+XAppleDRIGetIndirectContext (void)
+{
+    static CGLContextObj ctx;
+    void **t;
+    int i;
+
+    if (ctx != NULL)
+        return ctx;
+
+    /* initialize gl */
+    CGLSetOption (kCGLGOResetLibrary, 0);
+
+    /* Create an empty "context" for dispatching purposes. Add some slop
+       in case the dispatch table grows in future updates. */
+    ctx = Xcalloc (1, sizeof (struct _CGLContextObject) + 1024);
+
+    /* fill it with no-op vectors */
+    t = (void **) &ctx->disp;
+    for (i = 0; i < (int) (sizeof (ctx->disp) / sizeof (t[0])); i++)
+        t[i] = &indirect_noop;
+
+    /* then install the functions we actually support */
+    INDIRECT_DISPATCH_INIT (((void **) (&ctx->disp)), indirect__);
+
+    return ctx;
+}