| 1 | package CFClient::OpenGL; |
1 | package dc::OpenGL; |
| 2 | |
2 | |
| 3 | use strict; |
3 | use strict; |
| 4 | |
4 | |
| 5 | #use CFClient; |
5 | use Carp (); |
|
|
6 | use dc; |
|
|
7 | |
|
|
8 | our %GL_EXT; |
|
|
9 | our $GL_VERSION; |
|
|
10 | |
|
|
11 | our $GL_NPOT; |
|
|
12 | our $GL_COMPRESS; |
|
|
13 | our $GL_BFSEP; # blendfuncseparate |
|
|
14 | |
|
|
15 | our $DEBUG = 1; |
|
|
16 | our %INIT_HOOK; |
|
|
17 | our %SHUTDOWN_HOOK; |
| 6 | |
18 | |
| 7 | sub import { |
19 | sub import { |
| 8 | my $caller = caller; |
20 | my $caller = caller; |
| 9 | |
21 | |
| 10 | no strict; |
22 | no strict; |
| 11 | |
23 | |
| 12 | my $symtab = *{"main::CFClient::OpenGL::"}{HASH}; |
24 | my $symtab = *{"main::dc::OpenGL::"}{HASH}; |
| 13 | |
25 | |
| 14 | for (keys %$symtab) { |
26 | for (keys %$symtab) { |
| 15 | *{"$caller\::$_"} = \&$_ |
27 | *{"$caller\::$_"} = *$_ |
| 16 | if /^(?:gl|GL_)/; |
28 | if /^(?:gl[A-Z_]|GL_)/; |
| 17 | } |
29 | } |
| 18 | } |
30 | } |
| 19 | |
31 | |
| 20 | 1 |
32 | sub init { |
|
|
33 | $GL_VERSION = gl_version * 1; |
|
|
34 | %GL_EXT = map +($_ => 1), split /\s+/, gl_extensions; |
|
|
35 | |
|
|
36 | unless (defined $::CFG->{force_opengl11}) { |
|
|
37 | # try to find a suitable default |
|
|
38 | if ( |
|
|
39 | $GL_VERSION >= 2.0 |
|
|
40 | && (!$GL_EXT{GL_ARB_texture_non_power_of_two} |
|
|
41 | || !$GL_EXT{GL_EXT_blend_func_separate}) |
|
|
42 | ) { |
|
|
43 | $::CFG->{force_opengl11} = 1; |
|
|
44 | } else { |
|
|
45 | $::CFG->{force_opengl11} = 0; |
|
|
46 | } |
|
|
47 | } |
|
|
48 | |
|
|
49 | if ($::CFG->{force_opengl11}) { |
|
|
50 | $GL_VERSION = 1.1; |
|
|
51 | %GL_EXT = (); |
|
|
52 | } |
|
|
53 | |
|
|
54 | $GL_BFSEP = $GL_EXT{GL_EXT_blend_func_separate} || $GL_VERSION >= 2.0; |
|
|
55 | $GL_NPOT = $GL_EXT{GL_ARB_texture_non_power_of_two} || $GL_VERSION >= 2.0; |
|
|
56 | $GL_COMPRESS = $GL_EXT{GL_ARB_texture_compression} || $GL_VERSION >= 1.3; |
|
|
57 | |
|
|
58 | disable_GL_EXT_blend_func_separate |
|
|
59 | unless $GL_BFSEP; |
|
|
60 | |
|
|
61 | glDisable GL_COLOR_MATERIAL; |
|
|
62 | glShadeModel GL_FLAT; |
|
|
63 | glDisable GL_DITHER; |
|
|
64 | glDisable GL_DEPTH_TEST; |
|
|
65 | glDepthMask 0; |
|
|
66 | |
|
|
67 | my $hint = $::FAST ? GL_FASTEST : GL_NICEST; |
|
|
68 | glHint GL_PERSPECTIVE_CORRECTION_HINT, $hint; |
|
|
69 | glHint GL_POINT_SMOOTH_HINT , $hint; |
|
|
70 | glHint GL_LINE_SMOOTH_HINT , $hint; |
|
|
71 | glHint GL_POLYGON_SMOOTH_HINT , $hint; |
|
|
72 | glHint GL_GENERATE_MIPMAP_HINT , $hint; |
|
|
73 | glHint GL_TEXTURE_COMPRESSION_HINT , $hint; |
|
|
74 | #glDrawBuffer GL_BACK; |
|
|
75 | #glReadBuffer GL_BACK; |
|
|
76 | |
|
|
77 | $_->() for values %INIT_HOOK; |
|
|
78 | } |
|
|
79 | |
|
|
80 | sub quit { |
|
|
81 | undef $GL_VERSION; |
|
|
82 | undef %GL_EXT; |
|
|
83 | } |
|
|
84 | |
|
|
85 | sub shutdown { |
|
|
86 | $_->() for values %SHUTDOWN_HOOK; |
|
|
87 | |
|
|
88 | quit; |
|
|
89 | } |
|
|
90 | |
|
|
91 | sub gl_check { |
|
|
92 | return unless $DEBUG; |
|
|
93 | |
|
|
94 | if (my $error = glGetError) { |
|
|
95 | my ($format, @args) = @_; |
|
|
96 | Carp::cluck sprintf "opengl error %x while $format", $error, @args; |
|
|
97 | } |
|
|
98 | } |
|
|
99 | |
|
|
100 | 1; |
|
|
101 | |
