require 'json' EMCC_FLAGS = ENV["EMCC_FLAGS"] || "-O0 -g4 -D_ASSERT_USED -D_ERROR_PRINT --memory-init-file 0 -s TOTAL_MEMORY=67108864 -s WASM=0" if ENV["DEBUG"]EMCC_FLAGS = ENV["EMCC_FLAGS"] || "-O3 -D_ERROR_PRINT --memory-init-file 0 -s TOTAL_MEMORY=67108864 -s WASM=0" unless ENV["DEBUG"] c_files = FileList["../src/*.c"] exported_functions = [	"_malloc",	"_free",	"_memcpy",	"_h264bsdAlloc",	"_h264bsdFree",	"_h264bsdInit",	"_h264bsdDecode",	"_h264bsdShutdown",	"_h264bsdNextOutputPicture",	"_h264bsdNextOutputPictureRGBA",	"_h264bsdPicWidth",	"_h264bsdPicHeight",	"_h264bsdCroppingParams",] exported_runtime_methods = [	'getValue',	'setValue'] EXPORT_FLAGS = "-s LINKABLE=1 -s EXTRA_EXPORTED_RUNTIME_METHODS='#{JSON.generate(exported_runtime_methods)}' -s EXPORTED_FUNCTIONS='#{JSON.generate(exported_functions)}'" file "h264bsd_asm.js" do                                     	sh "emcc #{c_files.join(' ')} #{EMCC_FLAGS} #{EXPORT_FLAGS} -o h264bsd_asm.js"end directory "min" full_source_files = [	"h264bsd_asm.js",	"h264bsd_decoder.js",	"h264bsd_canvas.js"] file "min/h264bsd_full.min.js" => full_source_files + ["min"] do	sh "uglifyjs #{full_source_files.join(' ')} -c -m -o min/h264bsd_full.min.js"end canvas_source_files = [	"h264bsd_canvas.js"] file "min/h264bsd_canvas.min.js" => canvas_source_files + ["min"] do	sh "uglifyjs #{canvas_source_files.join(' ')} -c -m -o min/h264bsd_canvas.min.js"end worker_source_files = [	"h264bsd_asm.js",	"h264bsd_decoder.js",	"h264bsd_worker.js"] file "min/h264bsd_worker.min.js" => worker_source_files + ["min"] do	sh "uglifyjs #{worker_source_files.join(' ')} -c -m -o min/h264bsd_worker.min.js"end task :compress => ["min/h264bsd_full.min.js", "min/h264bsd_canvas.min.js", "min/h264bsd_worker.min.js"] task :clean do	FileUtils.rm_f("h264bsd_asm.js")	FileUtils.rm_rf("min")end desc "Check for prereq tools"task :setup do	sh("emcc --version") { |ok, res| fail("Can't find emscripten binaries.") unless ok }	sh("uglifyjs --version") { |ok, res| fail("Can't find UglifyJS tool for minification.") unless ok }	puts("Ready to go")end task :server do	require 'webrick'	WEBrick::HTTPServer.new(:Port => 8000, :DocumentRoot => Dir.pwd).startend task :build => [:setup, :compress] task :test do	sh "node test_node.js"end task :default => [:build]