mirror of https://github.com/libsdl-org/SDL
examples: Use the existing CMake infrastructure instead of rolling our own.
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8fa550e003
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@ -22,6 +22,7 @@
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use warnings;
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use strict;
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use File::Basename;
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use File::Copy;
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use Cwd qw(abs_path);
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use IPC::Open2;
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@ -29,10 +30,11 @@ my $examples_dir = abs_path(dirname(__FILE__) . "/../examples");
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my $project = undef;
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my $emsdk_dir = undef;
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my $compile_dir = undef;
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my $cmake_flags = undef;
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my $output_dir = undef;
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sub usage {
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die("USAGE: $0 <project_name> <emsdk_dir> <compiler_output_directory> <html_output_directory>\n\n");
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die("USAGE: $0 <project_name> <emsdk_dir> <compiler_output_directory> <cmake_flags> <html_output_directory>\n\n");
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}
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sub do_system {
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@ -50,13 +52,20 @@ sub do_mkdir {
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}
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}
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sub do_copy {
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my $src = shift;
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my $dst = shift;
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print("cp '$src' '$dst'\n");
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copy($src, $dst) or die("Failed to copy '$src' to '$dst': $!\n");
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}
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sub build_latest {
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# Try to build just the latest without re-running cmake, since that is SLOW.
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print("Building latest version of $project ...\n");
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if (do_system("EMSDK_QUIET=1 source '$emsdk_dir/emsdk_env.sh' && cd '$compile_dir' && ninja") != 0) {
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# Build failed? Try nuking the build dir and running CMake from scratch.
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print("\n\nBuilding latest version of $project FROM SCRATCH ...\n");
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if (do_system("EMSDK_QUIET=1 source '$emsdk_dir/emsdk_env.sh' && rm -rf '$compile_dir' && mkdir '$compile_dir' && cd '$compile_dir' && emcmake cmake -G Ninja -DCMAKE_BUILD_TYPE=MinSizeRel '$examples_dir/..' && ninja") != 0) {
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if (do_system("EMSDK_QUIET=1 source '$emsdk_dir/emsdk_env.sh' && rm -rf '$compile_dir' && mkdir '$compile_dir' && cd '$compile_dir' && emcmake cmake -G Ninja -DCMAKE_BUILD_TYPE=MinSizeRel $cmake_flags '$examples_dir/..' && ninja") != 0) {
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die("Failed to build latest version of $project!\n"); # oh well.
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}
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}
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@ -80,32 +89,23 @@ sub handle_example_dir {
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}
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closedir($dh);
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my $datafilestxtpath = "$examples_dir/$category/$example/datafiles.txt";
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my $datafiles_str = '';
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if ( -f $datafilestxtpath ) {
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open (my $datafilesh, '<', $datafilestxtpath) or die("Couldn't opendir '$datafilestxtpath': $!\n");
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$spc = '';
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while (<$datafilesh>) {
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chomp;
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my $path = "$examples_dir/$category/$example/$_";
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my $fname = $_;
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$fname =~ s/\A.*\///;
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$datafiles_str .= "$spc--embed-file=$path\@/$fname";
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$spc = ' ';
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}
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close($datafilesh);
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}
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my $dst = "$output_dir/$category/$example";
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print("Building $category/$example ...\n");
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my $basefname = "$example";
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$basefname =~ s/\A\d+\-//;
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$basefname = "$category-$basefname";
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my $jsfname = "$basefname.js";
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my $wasmfname = "$basefname.wasm";
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my $jssrc = "$compile_dir/examples/$jsfname";
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my $wasmsrc = "$compile_dir/examples/$wasmfname";
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my $jsdst = "$dst/$jsfname";
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my $wasmdst = "$dst/$wasmfname";
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do_mkdir($dst);
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# !!! FIXME: hardcoded SDL3 references, need to fix this for satellite libraries and SDL2.
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do_system("EMSDK_QUIET=1 source '$emsdk_dir/emsdk_env.sh' && emcc -s USE_SDL=0 -s WASM=1 -s ALLOW_MEMORY_GROWTH=1 -s MAXIMUM_MEMORY=1gb -s ASSERTIONS=0 -o '$dst/index.js' '-I$examples_dir/../include' $files_str '$compile_dir/libSDL3.a' $datafiles_str") == 0
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or die("Failed to build $category/$example!\n");
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do_copy($jssrc, $jsdst);
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do_copy($wasmsrc, $wasmdst);
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my $highlight_cmd = "highlight '--outdir=$dst' --style-outfile=highlight.css --fragment --enclose-pre --stdout --syntax=c '--plug-in=$examples_dir/highlight-plugin.lua'";
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print("$highlight_cmd\n");
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@ -140,6 +140,7 @@ sub handle_example_dir {
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s/\@project_name\@/$project/g;
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s/\@category_name\@/$category/g;
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s/\@example_name\@/$example/g;
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s/\@javascript_file\@/$jsfname/g;
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s/\@htmlified_source_code\@/$htmlified_source_code/g;
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$html .= $_;
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}
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@ -148,8 +149,6 @@ sub handle_example_dir {
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open my $htmloutput, '>', "$dst/index.html" or die("Couldn't open '$dst/index.html': $!\n");
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print $htmloutput $html;
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close($htmloutput);
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}
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sub handle_category_dir {
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@ -177,6 +176,7 @@ foreach (@ARGV) {
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$project = $_, next if not defined $project;
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$emsdk_dir = $_, next if not defined $emsdk_dir;
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$compile_dir = $_, next if not defined $compile_dir;
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$cmake_flags = $_, next if not defined $cmake_flags;
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$output_dir = $_, next if not defined $output_dir;
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usage(); # too many arguments.
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}
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@ -186,8 +186,10 @@ usage() if not defined $output_dir;
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print("Examples dir: $examples_dir\n");
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print("emsdk dir: $emsdk_dir\n");
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print("Compile dir: $compile_dir\n");
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print("CMake flags: $cmake_flags\n");
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print("Output dir: $output_dir\n");
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do_system("rm -rf '$output_dir'");
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do_mkdir($output_dir);
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build_latest();
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@ -202,5 +204,6 @@ while (readdir($dh)) {
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closedir($dh);
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print("All examples built successfully!\n");
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exit(0); # success!
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@ -1 +0,0 @@
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../../../test/sample.wav
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@ -110,7 +110,7 @@
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};
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};
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</script>
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<script async type="text/javascript" src="index.js"></script>
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<script async type="text/javascript" src="@javascript_file@"></script>
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</body>
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</html>
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