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/cvs/deliantra/Deliantra-Client/DC.pm
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Comparing deliantra/Deliantra-Client/DC.pm (file contents):
Revision 1.2 by root, Thu Apr 6 20:15:10 2006 UTC vs.
Revision 1.22 by root, Tue Apr 11 13:14:36 2006 UTC

1=head1 NAME 1=head1 NAME
2 2
3Crossfire::Client - undocumented utility garbage for our crossfire client 3CFClient - undocumented utility garbage for our crossfire client
4 4
5=head1 SYNOPSIS 5=head1 SYNOPSIS
6 6
7 use Crossfire::Client; 7 use CFClient;
8 8
9=head1 DESCRIPTION 9=head1 DESCRIPTION
10 10
11=over 4 11=over 4
12 12
13=cut 13=cut
14 14
15package Crossfire::Client; 15package CFClient;
16 16
17BEGIN { 17BEGIN {
18 $VERSION = '0.1'; 18 $VERSION = '0.1';
19 19
20 use XSLoader; 20 use XSLoader;
21 XSLoader::load "Crossfire::Client", $VERSION; 21 XSLoader::load "CFClient", $VERSION;
22} 22}
23
24our %GL_EXT;
25our $GL_VERSION;
26
27our $GL_NPOT;
28
29sub gl_init {
30 $GL_VERSION = gl_version * 1;
31 %GL_EXT = map +($_ => 1), split /\s+/, gl_extensions;
32
33 $GL_NPOT = $GL_EXT{GL_ARB_texture_non_power_of_two} || $GL_VERSION >= 2;
34
35 CFClient::Texture::restore_state ();
36}
37
38sub find_rcfile($) {
39 my $path;
40
41 for (@INC) {
42 $path = "$_/CFClient/resources/$_[0]";
43 return $path if -r $path;
44 }
45
46 die "FATAL: can't find required file $_[0]\n";
47}
48
49sub read_cfg {
50 my ($file) = @_;
51
52 open CFG, $file
53 or return;
54
55 my $CFG;
56
57 local $/;
58 $CFG = eval <CFG>;
59
60 $::CFG = $CFG;
61
62 close CFG;
63}
64
65sub write_cfg {
66 my ($file) = @_;
67
68 open CFG, ">$file"
69 or return;
70
71 {
72 require Data::Dumper;
73 local $Data::Dumper::Purity = 1;
74 $::CFG->{VERSION} = $::VERSION;
75 print CFG Data::Dumper->Dump ([$::CFG], [qw/CFG/]);
76 }
77
78 close CFG;
79}
80
81package CFClient::Texture;
82
83use Scalar::Util;
84
85use SDL::OpenGL;
86
87my @textures;
88
89sub new {
90 my ($class, %data) = @_;
91
92 my $self = bless {
93 internalformat => GL_RGBA,
94 format => GL_RGBA,
95 %data,
96 }, $class;
97
98 push @textures, $self;
99 Scalar::Util::weaken $textures[-1];
100
101 $self->upload;
102
103 $self
104}
105
106sub new_from_image {
107 my ($class, $image) = @_;
108
109 $class->new (image => $image)
110}
111
112sub new_from_file {
113 my ($class, $path) = @_;
114
115 open my $fh, "<:raw", $path
116 or die "$path: $!";
117
118 local $/;
119 $class->new_from_image (<$fh>)
120}
121
122#sub new_from_surface {
123# my ($class, $surface) = @_;
124#
125# $surface->rgba;
126#
127# $class->new (
128# data => $surface->pixels,
129# width => $surface->width,
130# height => $surface->height,
131# )
132#}
133
134sub new_from_layout {
135 my ($class, $layout) = @_;
136
137 my ($w, $h, $data) = $layout->render;
138
139 $class->new (
140 width => $w,
141 height => $h,
142 data => $data,
143 internalformat => GL_ALPHA4,
144 format => GL_ALPHA,
145 )
146}
147
148sub new_from_opengl {
149 my ($class, $w, $h, $cb) = @_;
150
151 $class->new (width => $w, height => $h, rendercb => $cb)
152}
153
154sub topot {
155 (grep $_ >= $_[0], 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768)[0]
156}
157
158sub upload {
159 my ($self) = @_;
160
161 return unless $SDL::App::USING_OPENGL;
162
163 my $data;
164
165 if (exists $self->{data}) {
166 $data = $self->{data};
167 } elsif (exists $self->{rendercb}) {
168 glViewport 0, 0, $self->{width}, $self->{height};
169 glMatrixMode GL_PROJECTION;
170 glLoadIdentity;
171 glOrtho 0, $self->{width}, 0, $self->{height}, -10000, 10000;
172 glMatrixMode GL_MODELVIEW;
173 glPushmatrix;
174 glLoadIdentity;
175 glClear GL_COLOR_BUFFER_BIT;
176
177 $self->{rendercb}->($self, $self->{width}, $self->{height});
178 } else {
179 my $pb = new Gtk2::Gdk::PixbufLoader;
180 $pb->write ($self->{image});
181 $pb->close;
182
183 $pb = $pb->get_pixbuf;
184 $pb = $pb->add_alpha (0, 0, 0, 0);
185
186 $self->{width} = $pb->get_width;
187 $self->{height} = $pb->get_height;
188
189 $data = $pb->get_pixels;
190 }
191
192 my ($tw, $th) = @$self{qw(width height)};
193
194 unless ($GL_NPOT) {
195 $tw = topot $tw;
196 $th = topot $th;
197
198 if (defined $data) {
199 my $bpp = (length $data) / ($self->{width} * $self->{height});
200 $data = pack "(a" . ($tw * $bpp) . ")*",
201 unpack "(a" . ($self->{width} * $bpp) . ")*", $data;
202 $data .= ("\x00" x ($tw * $bpp)) x ($th - $self->{height});
203 }
204 }
205
206 $self->{s} = $self->{width} / $tw;
207 $self->{t} = $self->{height} / $th;
208
209 $self->{name} ||= (glGenTextures 1)->[0];
210
211 glBindTexture GL_TEXTURE_2D, $self->{name};
212
213 glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR;
214 glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR;#_MIPMAP_LINEAR;
215 glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP;
216 glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP;
217
218 glGetError;
219 if (defined $data) {
220 glTexImage2D GL_TEXTURE_2D, 0,
221 $self->{internalformat},
222 $tw, $th, # need to pad texture first
223 0,
224 $self->{format},
225 GL_UNSIGNED_BYTE,
226 $data;
227 glGetError and die;
228 } else {
229 glCopyTexImage2D GL_TEXTURE_2D, 0,
230 $self->{internalformat},
231 0, 0,
232 $tw, $th,
233 0;
234 glPopmatrix;
235 }
236}
237
238sub DESTROY {
239 my ($self) = @_;
240
241 return unless exists $self->{name};
242
243 glDeleteTextures delete $self->{name};
244}
245
246sub restore_state{
247 $_->upload
248 for grep $_, @textures;
249};
23 250
241; 2511;
25 252
26=back 253=back
27 254

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