| 1 |
=head1 NAME |
| 2 |
|
| 3 |
CFClient - undocumented utility garbage for our crossfire client |
| 4 |
|
| 5 |
=head1 SYNOPSIS |
| 6 |
|
| 7 |
use CFClient; |
| 8 |
|
| 9 |
=head1 DESCRIPTION |
| 10 |
|
| 11 |
=over 4 |
| 12 |
|
| 13 |
=cut |
| 14 |
|
| 15 |
package CFClient; |
| 16 |
|
| 17 |
BEGIN { |
| 18 |
$VERSION = '0.1'; |
| 19 |
|
| 20 |
use XSLoader; |
| 21 |
XSLoader::load "CFClient", $VERSION; |
| 22 |
} |
| 23 |
|
| 24 |
use SDL::OpenGL; |
| 25 |
|
| 26 |
our %GL_EXT; |
| 27 |
our $GL_VERSION; |
| 28 |
|
| 29 |
our $GL_NPOT; |
| 30 |
|
| 31 |
sub gl_init { |
| 32 |
$GL_VERSION = gl_version * 1; |
| 33 |
%GL_EXT = map +($_ => 1), split /\s+/, gl_extensions; |
| 34 |
|
| 35 |
$GL_NPOT = $GL_EXT{GL_ARB_texture_non_power_of_two} || $GL_VERSION >= 2; |
| 36 |
|
| 37 |
glClearColor 0.45, 0.45, 0.45, 1; |
| 38 |
|
| 39 |
glEnable GL_TEXTURE_2D; |
| 40 |
glEnable GL_COLOR_MATERIAL; |
| 41 |
glShadeModel GL_FLAT; |
| 42 |
glDisable GL_DEPTH_TEST; |
| 43 |
glBlendFunc GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA; |
| 44 |
|
| 45 |
glHint GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST; |
| 46 |
|
| 47 |
CFClient::Texture::restore_state (); |
| 48 |
} |
| 49 |
|
| 50 |
sub find_rcfile($) { |
| 51 |
my $path; |
| 52 |
|
| 53 |
for (@INC) { |
| 54 |
$path = "$_/CFClient/resources/$_[0]"; |
| 55 |
return $path if -r $path; |
| 56 |
} |
| 57 |
|
| 58 |
die "FATAL: can't find required file $_[0]\n"; |
| 59 |
} |
| 60 |
|
| 61 |
sub read_cfg { |
| 62 |
my ($file) = @_; |
| 63 |
|
| 64 |
open CFG, $file |
| 65 |
or return; |
| 66 |
|
| 67 |
my $CFG; |
| 68 |
|
| 69 |
local $/; |
| 70 |
$CFG = eval <CFG>; |
| 71 |
|
| 72 |
$::CFG = $CFG; |
| 73 |
|
| 74 |
close CFG; |
| 75 |
} |
| 76 |
|
| 77 |
sub write_cfg { |
| 78 |
my ($file) = @_; |
| 79 |
|
| 80 |
open CFG, ">$file" |
| 81 |
or return; |
| 82 |
|
| 83 |
{ |
| 84 |
require Data::Dumper; |
| 85 |
local $Data::Dumper::Purity = 1; |
| 86 |
$::CFG->{VERSION} = $::VERSION; |
| 87 |
print CFG Data::Dumper->Dump ([$::CFG], [qw/CFG/]); |
| 88 |
} |
| 89 |
|
| 90 |
close CFG; |
| 91 |
} |
| 92 |
|
| 93 |
package CFClient::Texture; |
| 94 |
|
| 95 |
use strict; |
| 96 |
|
| 97 |
use Scalar::Util; |
| 98 |
|
| 99 |
use SDL::OpenGL; |
| 100 |
|
| 101 |
my @textures; |
| 102 |
|
| 103 |
sub new { |
| 104 |
my ($class, %data) = @_; |
| 105 |
|
| 106 |
my $self = bless { |
| 107 |
internalformat => GL_RGBA, |
| 108 |
format => GL_RGBA, |
| 109 |
%data, |
| 110 |
}, $class; |
| 111 |
|
| 112 |
push @textures, $self; |
| 113 |
Scalar::Util::weaken $textures[-1]; |
| 114 |
|
| 115 |
$self->upload; |
| 116 |
|
| 117 |
$self |
| 118 |
} |
| 119 |
|
| 120 |
sub new_from_image { |
| 121 |
my ($class, $image) = @_; |
| 122 |
|
| 123 |
$class->new (image => $image) |
| 124 |
} |
| 125 |
|
| 126 |
sub new_from_file { |
| 127 |
my ($class, $path) = @_; |
| 128 |
|
| 129 |
open my $fh, "<:raw", $path |
| 130 |
or die "$path: $!"; |
| 131 |
|
| 132 |
local $/; |
| 133 |
$class->new_from_image (<$fh>) |
| 134 |
} |
| 135 |
|
| 136 |
#sub new_from_surface { |
| 137 |
# my ($class, $surface) = @_; |
| 138 |
# |
| 139 |
# $surface->rgba; |
| 140 |
# |
| 141 |
# $class->new ( |
| 142 |
# data => $surface->pixels, |
| 143 |
# w => $surface->width, |
| 144 |
# h => $surface->height, |
| 145 |
# ) |
| 146 |
#} |
| 147 |
|
| 148 |
sub new_from_layout { |
| 149 |
my ($class, $layout) = @_; |
| 150 |
|
| 151 |
my ($w, $h, $data) = $layout->render; |
| 152 |
|
| 153 |
$class->new ( |
| 154 |
w => $w, |
| 155 |
h => $h, |
| 156 |
data => $data, |
| 157 |
internalformat => GL_ALPHA4, |
| 158 |
format => GL_ALPHA, |
| 159 |
) |
| 160 |
} |
| 161 |
|
| 162 |
sub new_from_opengl { |
| 163 |
my ($class, $w, $h, $cb) = @_; |
| 164 |
|
| 165 |
$class->new (w => $w, h => $h, render_cb => $cb) |
| 166 |
} |
| 167 |
|
| 168 |
sub topot { |
| 169 |
(grep $_ >= $_[0], 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768)[0] |
| 170 |
} |
| 171 |
|
| 172 |
sub upload { |
| 173 |
my ($self) = @_; |
| 174 |
|
| 175 |
return unless $GL_VERSION; |
| 176 |
|
| 177 |
my $data; |
| 178 |
|
| 179 |
if (exists $self->{data}) { |
| 180 |
$data = $self->{data}; |
| 181 |
|
| 182 |
} elsif (exists $self->{render_cb}) { |
| 183 |
glViewport 0, 0, $self->{w}, $self->{h}; |
| 184 |
glOrtho 0, $self->{w}, 0, $self->{h}, -10000, 10000; |
| 185 |
glMatrixMode GL_PROJECTION; |
| 186 |
glLoadIdentity; |
| 187 |
glMatrixMode GL_MODELVIEW; |
| 188 |
glLoadIdentity; |
| 189 |
glClear GL_COLOR_BUFFER_BIT; |
| 190 |
$self->{render_cb}->($self, $self->{w}, $self->{h}); |
| 191 |
|
| 192 |
} else { |
| 193 |
my $pb = new Gtk2::Gdk::PixbufLoader; |
| 194 |
$pb->write ($self->{image}); |
| 195 |
$pb->close; |
| 196 |
|
| 197 |
$pb = $pb->get_pixbuf; |
| 198 |
$pb = $pb->add_alpha (0, 0, 0, 0); |
| 199 |
|
| 200 |
$self->{w} = $pb->get_width; |
| 201 |
$self->{h} = $pb->get_height; |
| 202 |
|
| 203 |
$data = $pb->get_pixels; |
| 204 |
} |
| 205 |
|
| 206 |
my ($tw, $th) = @$self{qw(w h)}; |
| 207 |
|
| 208 |
unless ($tw && $th) { |
| 209 |
$tw = $th = 1; |
| 210 |
$data = "\x00" x 64; |
| 211 |
} |
| 212 |
|
| 213 |
unless ($GL_NPOT) { |
| 214 |
# TODO: does not work for zero-sized textures |
| 215 |
$tw = topot $tw; |
| 216 |
$th = topot $th; |
| 217 |
|
| 218 |
if ($tw != $self->{w} || $th != $self->{h} && defined $data) { |
| 219 |
my $bpp = (length $data) / ($self->{w} * $self->{h}); |
| 220 |
$data = pack "(a" . ($tw * $bpp) . ")*", |
| 221 |
unpack "(a" . ($self->{w} * $bpp) . ")*", $data; |
| 222 |
$data .= ("\x00" x ($tw * $bpp)) x ($th - $self->{h}); |
| 223 |
} |
| 224 |
} |
| 225 |
|
| 226 |
$self->{s} = $self->{w} / $tw; |
| 227 |
$self->{t} = $self->{h} / $th; |
| 228 |
|
| 229 |
$self->{name} ||= (glGenTextures 1)->[0]; |
| 230 |
|
| 231 |
glBindTexture GL_TEXTURE_2D, $self->{name}; |
| 232 |
|
| 233 |
glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, $::FAST ? GL_NEAREST : GL_LINEAR; |
| 234 |
glTexParameter GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, $::FAST ? GL_NEAREST : GL_LINEAR; |
| 235 |
glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP; |
| 236 |
glTexParameter GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP; |
| 237 |
|
| 238 |
if (defined $data) { |
| 239 |
glTexImage2D GL_TEXTURE_2D, 0, |
| 240 |
$self->{internalformat}, |
| 241 |
$tw, $th, # need to pad texture first |
| 242 |
0, |
| 243 |
$self->{format}, |
| 244 |
GL_UNSIGNED_BYTE, |
| 245 |
$data; |
| 246 |
glGetError and die; |
| 247 |
} else { |
| 248 |
glCopyTexImage2D GL_TEXTURE_2D, 0, |
| 249 |
$self->{internalformat}, |
| 250 |
0, 0, |
| 251 |
$tw, $th, |
| 252 |
0; |
| 253 |
glGetError and die; |
| 254 |
} |
| 255 |
} |
| 256 |
|
| 257 |
sub DESTROY { |
| 258 |
my ($self) = @_; |
| 259 |
|
| 260 |
return unless exists $self->{name}; |
| 261 |
|
| 262 |
glDeleteTextures delete $self->{name}; |
| 263 |
} |
| 264 |
|
| 265 |
sub restore_state{ |
| 266 |
$_->upload |
| 267 |
for grep $_, @textures; |
| 268 |
}; |
| 269 |
|
| 270 |
1; |
| 271 |
|
| 272 |
=back |
| 273 |
|
| 274 |
=head1 AUTHOR |
| 275 |
|
| 276 |
Marc Lehmann <schmorp@schmorp.de> |
| 277 |
http://home.schmorp.de/ |
| 278 |
|
| 279 |
=cut |
| 280 |
|
