import Mesa 11.0.6

1 files changed, 214 insertions, 0 deletions

diff --git a/lib/mesa/src/mapi/glapi/gen/gl_gentable.py b/lib/mesa/src/mapi/glapi/gen/gl_gentable.py
new file mode 100644
index 000000000..1b3eb7247
--- /dev/null
+++ b/lib/mesa/src/mapi/glapi/gen/gl_gentable.py
@@ -0,0 +1,214 @@
+#!/usr/bin/env python
+
+# (C) Copyright IBM Corporation 2004, 2005
+# (C) Copyright Apple Inc. 2011
+# Copyright (C) 2015 Intel Corporation
+# 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
+# on the rights to use, copy, modify, merge, publish, distribute, sub
+# license, 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 (including the next
+# paragraph) 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 NON-INFRINGEMENT.  IN NO EVENT SHALL
+# IBM AND/OR ITS SUPPLIERS 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.
+#
+# Authors:
+#    Jeremy Huddleston <jeremyhu@apple.com>
+#
+# Based on code ogiginally by:
+#    Ian Romanick <idr@us.ibm.com>
+
+import argparse
+
+import license
+import gl_XML, glX_XML
+
+header = """/* GLXEXT is the define used in the xserver when the GLX extension is being
+ * built.  Hijack this to determine whether this file is being built for the
+ * server or the client.
+ */
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#if (defined(GLXEXT) && defined(HAVE_BACKTRACE)) \\
+	|| (!defined(GLXEXT) && defined(DEBUG) && !defined(__CYGWIN__) && !defined(__MINGW32__) && !defined(__OpenBSD__) && !defined(__NetBSD__) && !defined(__DragonFly__))
+#define USE_BACKTRACE
+#endif
+
+#ifdef USE_BACKTRACE
+#include <execinfo.h>
+#endif
+
+#ifndef _WIN32
+#include <dlfcn.h>
+#endif
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "main/glheader.h"
+
+#include "glapi.h"
+#include "glapitable.h"
+
+#ifdef GLXEXT
+#include "os.h"
+#endif
+
+static void
+__glapi_gentable_NoOp(void) {
+    const char *fstr = "Unknown";
+
+    /* Silence potential GCC warning for some #ifdef paths.
+     */
+    (void) fstr;
+#if defined(USE_BACKTRACE)
+#if !defined(GLXEXT)
+    if (getenv("MESA_DEBUG") || getenv("LIBGL_DEBUG"))
+#endif
+    {
+        void *frames[2];
+
+        if(backtrace(frames, 2) == 2) {
+            Dl_info info;
+            dladdr(frames[1], &info);
+            if(info.dli_sname)
+                fstr = info.dli_sname;
+        }
+
+#if !defined(GLXEXT)
+        fprintf(stderr, "Call to unimplemented API: %s\\n", fstr);
+#endif
+    }
+#endif
+#if defined(GLXEXT)
+    LogMessage(X_ERROR, "GLX: Call to unimplemented API: %s\\n", fstr);
+#endif
+}
+
+static void
+__glapi_gentable_set_remaining_noop(struct _glapi_table *disp) {
+    GLuint entries = _glapi_get_dispatch_table_size();
+    void **dispatch = (void **) disp;
+    unsigned i;
+
+    /* ISO C is annoying sometimes */
+    union {_glapi_proc p; void *v;} p;
+    p.p = __glapi_gentable_NoOp;
+
+    for(i=0; i < entries; i++)
+        if(dispatch[i] == NULL)
+            dispatch[i] = p.v;
+}
+
+struct _glapi_table *
+_glapi_create_table_from_handle(void *handle, const char *symbol_prefix) {
+    struct _glapi_table *disp = calloc(_glapi_get_dispatch_table_size(), sizeof(_glapi_proc));
+    char symboln[512];
+
+    if(!disp)
+        return NULL;
+
+    if(symbol_prefix == NULL)
+        symbol_prefix = "";
+"""
+
+footer = """
+    __glapi_gentable_set_remaining_noop(disp);
+
+    return disp;
+}
+"""
+
+body_template = """
+    if(!disp->%(name)s) {
+        void ** procp = (void **) &disp->%(name)s;
+        snprintf(symboln, sizeof(symboln), "%%s%(entry_point)s", symbol_prefix);
+#ifdef _WIN32
+        *procp = GetProcAddress(handle, symboln);
+#else
+        *procp = dlsym(handle, symboln);
+#endif
+    }
+"""
+
+class PrintCode(gl_XML.gl_print_base):
+
+    def __init__(self):
+        gl_XML.gl_print_base.__init__(self)
+
+        self.name = "gl_gentable.py (from Mesa)"
+        self.license = license.bsd_license_template % ( \
+"""Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
+(C) Copyright IBM Corporation 2004, 2005
+(C) Copyright Apple Inc 2011""", "BRIAN PAUL, IBM")
+
+        return
+
+
+    def get_stack_size(self, f):
+        size = 0
+        for p in f.parameterIterator():
+            if p.is_padding:
+                continue
+
+            size += p.get_stack_size()
+
+        return size
+
+
+    def printRealHeader(self):
+        print header
+        return
+
+
+    def printRealFooter(self):
+        print footer
+        return
+
+
+    def printBody(self, api):
+        for f in api.functionIterateByOffset():
+            for entry_point in f.entry_points:
+                vars = { 'entry_point' : entry_point,
+                         'name' : f.name }
+
+                print body_template % vars
+        return
+
+
+def _parser():
+    """Parse arguments and return a namespace object."""
+    parser = argparse.ArgumentParser()
+    parser.add_argument('-f',
+                        dest='filename',
+                        default='gl_API.xml',
+                        help='An XML file description of an API')
+
+    return parser.parse_args()
+
+
+def main():
+    """Main function."""
+    args = _parser()
+
+    printer = PrintCode()
+
+    api = gl_XML.parse_GL_API(args.filename, glX_XML.glx_item_factory())
+    printer.Print(api)
+
+
+if __name__ == '__main__':
+    main()