shithub: h264bsd

ref: d845fb5e4d7e03cd55f0c627f5c5d81c4599ec8b
dir: /js/Rakefile/

EMCC_FLAGS = ENV["EMCC_FLAGS"] || "-O3 -D_ERROR_PRINT"

EMCC_FLAGS = "-O0 -g4 -D_ASSERT_USED -D_ERROR_PRINT" if ENV["DEBUG"]

rule '.o' => ['.c'] do |t|
  sh "emcc #{t.source} -c #{EMCC_FLAGS} -o #{t.name}"
end

o_files = FileList["../src/*.c"].gsub(/c$/, 'o')

export_functions = [
	"_h264bsdAlloc",
	"_h264bsdFree",
	"_h264bsdInit",
	"_h264bsdDecode",
	"_h264bsdShutdown",
	"_h264bsdNextOutputPicture",
	"_h264bsdNextOutputPictureRGBA",
	"_h264bsdPicWidth",
	"_h264bsdPicHeight",
	"_h264bsdCroppingParams",
	"_h264bsdCheckValidParamSets",
	"_h264bsdConvertToRGBA",
]

file "h264bsd_asm.js" => o_files do                                     
	sh "emcc #{o_files.join(' ')} --memory-init-file 0 -s TOTAL_MEMORY=67108864 -s EXPORT_ALL=1 #{EMCC_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
	o_files.each{|o| FileUtils.rm_f(o)}
	FileUtils.rm_f("h264bsd_asm.js")
	FileUtils.rm_f("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 UglifyJS2 tool for minification.") unless ok }
	puts("Ready to go")
end

task :default => [:setup, :compress]