blob: 161ee507b3f68223298254338b43ddea7f368fbd (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
#!/usr/bin/perl -w
#
# gen-gdkglglxext-c.pl
#
# Script for generating gdk/x11/gdkglglxext.c from SGI's OpenGL extension
# header.
#
# written by Naofumi Yasufuku <naofumi@users.sourceforge.net>
#
@input_headers = ("glxext.h", "glxext-extra.h");
#---------------
open(IN, "common-header.h") || die "cannot open common-header.h";
print while (<IN>);
close(IN);
print <<EOF;
/*
* This is a generated file. Please modify "gen-gdkglglxext-c.pl".
*/
#include "gdkglx.h"
#include "gdkglprivate-x11.h"
#include "gdkglglxext.h"
EOF
#---------------
foreach $in (@input_headers) {
open(IN, $in) || die "cannot open $in";
while (<IN>) {
if (/#ifndef\s+GLX_[a-zA-Z0-9]+_[a-z0-9_]+/) {
@line = split;
$_ = <IN>;
if (/#define\s+$line[1]/) {
while (<IN>) {
if (/#ifdef\s+GLX_GLXEXT_PROTOTYPES/) {
$extension = $line[1];
# function prototypes
@functions = ();
while (<IN>) {
last if (/#endif/);
($func) = /(glX\w+)/;
push(@functions, $func);
}
# typedefs
@typedefs = ();
while (<IN>) {
last if (/#endif/);
chomp;
push(@typedefs, $_);
}
generate_code();
last;
} elsif (/#endif/) {
last;
}
}
}
}
}
close(IN);
}
# code generator
sub generate_code {
print "/*\n";
print " * $extension\n";
print " */\n\n";
if ($extension eq "GLX_SGIX_video_source") {
print "#ifdef _VL_H\n\n";
} elsif ($extension eq "GLX_SGIX_dmbuffer") {
print "#ifdef _DM_BUFFER_H_\n\n";
}
print "static GdkGL_$extension _procs_$extension = {\n";
print " (GdkGLProc_$functions[0]) -1";
for ($i = 1; $i <= $#functions; $i++) {
print ",\n (GdkGLProc_$functions[$i]) -1";
}
print "\n};\n\n";
foreach $func (@functions) {
print "/* $func */\n";
print "GdkGLProc\n";
print "gdk_gl_get_$func (void)\n";
print "{\n";
print " if (_procs_$extension.$func == (GdkGLProc_$func) -1)\n";
print " _procs_$extension.$func =\n";
print " (GdkGLProc_$func) gdk_gl_get_proc_address (\"$func\");\n";
print "\n";
print " GDK_GL_NOTE (MISC,\n";
print " g_message (\" - gdk_gl_get_$func () - \%s\",\n";
print " (_procs_$extension.$func) ? \"supported\" : \"not supported\"));\n";
print "\n";
print " return (GdkGLProc) (_procs_$extension.$func);\n";
print "}\n\n";
}
print "/* Get $extension functions */\n";
print "GdkGL_$extension *\n";
if ($extension =~ /^GLX_VERSION_.*/) {
print "gdk_gl_get_$extension (void)\n";
} else {
print "gdk_gl_get_$extension (GdkGLConfig *glconfig)\n";
}
print "{\n";
print " static gint supported = -1;\n";
print "\n";
print " if (supported == -1)\n";
print " {\n";
if ($extension =~ /^GLX_VERSION_.*/) {
print " supported = (gdk_gl_get_$functions[0] () != NULL);\n";
for ($i = 1; $i <= $#functions; $i++) {
print " supported &= (gdk_gl_get_$functions[$i] () != NULL);\n";
}
} else {
print " supported = gdk_x11_gl_query_glx_extension (glconfig, \"$extension\");\n";
print "\n";
print " if (supported)\n";
print " {\n";
foreach $func (@functions) {
print " supported &= (gdk_gl_get_$func () != NULL);\n";
}
print " }\n";
}
print " }\n";
print "\n";
print " GDK_GL_NOTE (MISC,\n";
print " g_message (\" - gdk_gl_get_$extension () - \%s\",\n";
print " (supported) ? \"supported\" : \"not supported\"));\n";
print "\n";
print " if (!supported)\n";
print " return NULL;\n";
print "\n";
print " return &_procs_$extension;\n";
print "}\n\n";
if ($extension eq "GLX_SGIX_video_source") {
print "#endif /* _VL_H */\n\n";
} elsif ($extension eq "GLX_SGIX_dmbuffer") {
print "#endif /* _DM_BUFFER_H_ */\n\n";
}
}
|
