start asset manager

xmake/bin2c.lua

@@ -0,0 +1,106 @@
+
+buildAsset = function(target, batchcmds, sourcefile_bin, opt)
+
+	
+end
+
+
+rule("bin2c")
+    set_extensions(".bin")
+    
+	on_load(function (target)
+        local headerdir = path.join(target:autogendir(), "rules", "bin2c")
+        
+		if not os.isdir(headerdir) then
+            os.mkdir(headerdir)
+        end
+        
+		target:add("includedirs", headerdir)
+    end)
+
+    before_buildcmd_files(function (target, batchcmds, sourcebatch, opt)
+		local outputHeader = table.unpack(target:extraconf("rules", "bin2c", "outputHeader"))
+
+		local outputHeaderEnumContent = ""
+
+		for _, filePath in ipairs(sourcebatch.sourcefiles) do
+			local escapedName = string.gsub(filePath, "[/|.]", "_")
+			outputHeaderEnumContent = outputHeaderEnumContent .. "\t" .. escapedName .. ",\n"
+		end
+
+		local outputHeaderContent = string.format([[
+#pragma once
+
+#include <cstdint>
+#include <string>
+
+struct Asset {
+	const unsigned char* data;
+	std::size_t size;
+};
+
+enum class AssetName {
+%s
+};
+
+const Asset& getResource(AssetName fileName);
+	]], outputHeaderEnumContent)
+
+        local outputSource = table.unpack(target:extraconf("rules", "bin2c", "outputSource"))
+
+		local outputSourceContent = string.format("#include \"%s\"\n", "AssetManager.h")
+
+		local outputSourceArrayVars = ""
+		
+		for _, filePath in ipairs(sourcebatch.sourcefiles) do
+			local escapedName = string.gsub(filePath, "[/|.]", "_")
+			local varDecl = string.format("static const unsigned char %s[] = {\n\t#include <%s>\n};\n\n", escapedName, filePath .. ".h")
+			outputSourceContent = outputSourceContent .. varDecl
+			outputSourceArrayVars = outputSourceArrayVars .. string.format("\t{%s, sizeof(%s)},\n", escapedName, escapedName)
+		end
+
+		outputSourceContent = outputSourceContent .. string.format([[
+static const Asset assets[] = {
+%s
+};
+		]], outputSourceArrayVars)
+
+		outputSourceContent = outputSourceContent .. [[
+const Asset& getResource(AssetName fileName) {
+	return assets[static_cast<std::size_t>(fileName)];
+}
+		]]
+
+		for _, sourcefile_bin in ipairs(sourcebatch.sourcefiles) do
+			-- get header file
+			local headerdir = path.join(target:autogendir(), "rules", "bin2c")
+			local headerfile = path.join(headerdir, sourcefile_bin .. ".h")
+			target:add("includedirs", headerdir)
+
+			-- add commands
+			batchcmds:show_progress(opt.progress, "${color.build.object}generating.bin2c %s", sourcefile_bin)
+			batchcmds:mkdir(headerdir)
+			local argv = {"lua", "private.utils.bin2c", "-i", path(sourcefile_bin), "-o", path(headerfile)}
+			local linewidth = target:extraconf("rules", "bin2c", "linewidth")
+			if linewidth then
+				table.insert(argv, "-w")
+				table.insert(argv, tostring(linewidth))
+			end
+			local nozeroend = target:extraconf("rules", "bin2c", "nozeroend")
+			if nozeroend then
+				table.insert(argv, "--nozeroend")
+			end
+			batchcmds:vrunv(os.programfile(), argv, {envs = {XMAKE_SKIP_HISTORY = "y"}})
+
+			-- add deps
+			batchcmds:add_depfiles(sourcefile_bin)
+			batchcmds:set_depmtime(os.mtime(headerfile))
+			batchcmds:set_depcache(target:dependfile(headerfile))
+
+		end
+
+		batchcmds:show_progress(opt.progress, "${color.build.object}generating.bin2c %s", outputHeader)
+		io.writefile(outputHeader, outputHeaderContent)
+		batchcmds:show_progress(opt.progress, "${color.build.object}generating.bin2c %s", outputSource)
+		io.writefile(outputSource, outputSourceContent)
+    end)