glsl: move shader into a separate directory

Only keep glsl_source.h for clarity

linux_various/glsl2h.pl

@@ -37,14 +37,17 @@ eval {
 ########################
 # GSdx
 ########################
-my @gsdx_res = qw/convert.glsl interlace.glsl merge.glsl shadeboost.glsl tfx_vgs.glsl tfx_fs_all.glsl fxaa.fx/;
 my $gsdx_path = File::Spec->catdir(dirname(abs_path($0)), "..", "plugins", "GSdx", "res");
+my $gsdx_out = File::Spec->catdir($gsdx_path, "glsl_source.h");
+
 # Just a hack to reuse glsl2h function easily
+$gsdx_path = File::Spec->catdir(dirname(abs_path($0)), "..", "plugins", "GSdx", "res", "glsl");
 my @tfx_res = qw/tfx_fs.glsl tfx_fs_subroutine.glsl/;
 my $tfx_all = File::Spec->catdir($gsdx_path, "tfx_fs_all.glsl");
+
+my @gsdx_res = qw/convert.glsl interlace.glsl merge.glsl shadeboost.glsl tfx_vgs.glsl tfx_fs_all.glsl fxaa.fx/;
 concat($gsdx_path, $tfx_all, \@tfx_res);
 
-my $gsdx_out = File::Spec->catdir($gsdx_path, "glsl_source.h");
 glsl2h($gsdx_path, $gsdx_out, \@gsdx_res);
 
 unlink $tfx_all;

plugins/GSdx/res/glsl/fxaa.fx

@@ -0,0 +1 @@
+../fxaa.fx