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package CFPlus::OpenGL; |
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|
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use strict; |
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|
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use Carp (); |
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use CFPlus; |
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|
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our %GL_EXT; |
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our $GL_VERSION; |
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|
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our $GL_NPOT; |
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|
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our $DEBUG = 1; |
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our %INIT_HOOK; |
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our %SHUTDOWN_HOOK; |
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|
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sub import { |
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my $caller = caller; |
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|
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no strict; |
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|
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my $symtab = *{"main::CFPlus::OpenGL::"}{HASH}; |
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|
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for (keys %$symtab) { |
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*{"$caller\::$_"} = *$_ |
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if /^(?:gl[A-Z_]|GL_)/; |
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} |
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} |
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|
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sub init { |
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$GL_VERSION = gl_version * 1; |
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%GL_EXT = map +($_ => 1), split /\s+/, gl_extensions; |
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|
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$GL_NPOT = $GL_EXT{GL_ARB_texture_non_power_of_two} || $GL_VERSION >= 2; |
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$GL_NPOT = 0 if gl_vendor =~ /ATI Technologies/; # ATI doesn't get it right... |
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|
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glDisable GL_COLOR_MATERIAL; |
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glShadeModel GL_FLAT; |
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glDisable GL_DITHER; |
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glDisable GL_DEPTH_TEST; |
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glDepthMask 0; |
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glHint GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST; |
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glDrawBuffer GL_BACK; |
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glReadBuffer GL_BACK; |
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|
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$_->() for values %INIT_HOOK; |
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} |
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|
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sub shutdown { |
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$_->() for values %SHUTDOWN_HOOK; |
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} |
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|
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sub gl_check { |
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return unless $DEBUG; |
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|
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if (my $error = glGetError) { |
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my ($format, @args) = @_; |
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Carp::cluck sprintf "opengl error %x while $format", $error, @args; |
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} |
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} |
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|
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1; |
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