feat(extlua): support external material

Makefile

@@ -58,20 +58,25 @@ $(LUA_O) : $(LUASRC)
 
 SHADER_SRC=$(wildcard src/*.glsl)
 SHADER_O=$(patsubst src/%.glsl,$(BUILD)/%.glsl.h,$(SHADER_SRC))
+EXTLUA_SHADER_SRC=$(wildcard extlua/*.glsl)
+EXTLUA_SHADER_O=$(patsubst extlua/%.glsl,$(BUILD)/%.glsl.h,$(EXTLUA_SHADER_SRC))
 SHADERINC=-I$(BUILD)
 
 $(BUILD)/%.glsl.h : src/%.glsl
 	$(SHDC) --input $< --output $@ --slang hlsl4 --format sokol
 
-shader : $(SHADER_O)
+$(BUILD)/%.glsl.h : extlua/%.glsl
+	$(SHDC) --input $< --output $@ --slang hlsl4 --format sokol
+
+shader : $(SHADER_O) $(EXTLUA_SHADER_O)
 
 MAIN_FULL=$(wildcard src/*.c)
 PLATFORM_FULL=$(wildcard src/platform/windows/*.c)
 MAIN_C=$(notdir $(MAIN_FULL))
 MAIN_O=$(patsubst %.c,$(BUILD)/soluna_%.o,$(MAIN_C))
 PLATFORM_C=$(notdir $(PLATFORM_FULL))
 PLATFORM_O=$(patsubst %.c,$(BUILD)/platform_%.o,$(PLATFORM_C))
-EXTLUA_O=$(BUILD)/extlua_impl.o
+EXTLUA_O=$(BUILD)/extlua_impl.o $(BUILD)/sokolapi_impl.o $(BUILD)/solunaapi_impl.o
 
 $(MAIN_O) : $(SHADER_O)
 
@@ -82,7 +87,7 @@ LTASK_O=$(patsubst %.c,$(BUILD)/ltask_%.o,$(LTASK_C))
 LTASK_LUASRC=\
   3rd/ltask/service/root.lua\
   3rd/ltask/service/timer.lua\
-  $(wildcard 3rd/ltask/lualib/*.lua src/lualib/*.lua src/service/*.lua)
+  $(wildcard 3rd/ltask/lualib/*.lua src/lualib/*.lua src/service/*.lua src/material/*.lua)
 
 LTASK_LUACODE=$(patsubst %.lua, $(BUILD)/%.lua.h, $(notdir $(LTASK_LUASRC)))
 
@@ -116,6 +121,9 @@ $(BUILD)/%.lua.h : src/lualib/%.lua
 $(BUILD)/%.lua.h : src/service/%.lua
 	$(COMPILE_LUA)
 
+$(BUILD)/%.lua.h : src/material/%.lua
+	$(COMPILE_LUA)
+
 $(BUILD)/%.dl.h : src/data/%.dl
 	$(COMPILE_DATALIST)
 
@@ -153,11 +161,17 @@ $(BUILD)/minizip_%.o : 3rd/zlib/contrib/minizip/%.c
 $(BUILD)/extlua_impl.o : extlua/extlua_impl.c
 	$(COMPILE_C) $(LUAINC)
 
+$(BUILD)/sokolapi_impl.o : extlua/sokolapi_impl.c
+	$(COMPILE_C) $(3RDINC)
+
+$(BUILD)/solunaapi_impl.o : extlua/solunaapi_impl.c
+	$(COMPILE_C) $(LUAINC) $(3RDINC)
+
 $(BIN)/$(APPNAME): $(MAIN_O) $(PLATFORM_O) $(EXTLUA_O) $(LTASK_O) $(LUA_O) $(DATALIST_O) $(BUILD)/yoga.o $(ZLIB_O) $(MINIZIP_O)
 	$(LD) $(OUTPUT_EXE) $@ $^ $(LDFLAGS)
 
-$(BIN)/sample.dll : extlua/extlua.c extlua/extlua_sample.c
-	$(CC) $(CFLAGS) $(SHARED) $(OUTPUT_EXE) $@ $^ $(LUAINC)
+$(BIN)/sample.dll : extlua/extlua.c extlua/sokolapi.c extlua/solunaapi.c extlua/extlua_sample.c | $(EXTLUA_SHADER_O)
+	$(CC) $(CFLAGS) $(SHARED) $(OUTPUT_EXE) $@ $^ $(LUAINC) $(3RDINC) $(SHADERINC) -Iextlua
 
 extlua_sample: $(BIN)/sample.dll
 

clibs/sample/make.lua

@@ -0,0 +1,82 @@
+local lm = require "luamake"
+local platform = require "bee.platform"
+
+lm.rootdir = lm.basedir
+
+local function shdc_plat()
+	if lm.os == "windows" then
+		return "win32"
+	end
+	if lm.os == "linux" then
+		return "linux"
+	end
+	if lm.os == "macos" then
+		return platform.Arch == "arm64" and "osx_arm64" or "osx"
+	end
+	return "unknown"
+end
+
+local paths = {
+	windows = "$PATH/$NAME.exe",
+	macos = "$PATH/$NAME",
+	linux = "$PATH/$NAME",
+}
+
+local shdc = assert(paths[lm.os]):gsub("%$(%u+)", {
+	PATH = tostring(lm.basedir / "bin/sokol-tools-bin/bin" / shdc_plat()),
+	NAME = "sokol-shdc",
+})
+
+local function shader_lang()
+	local plat = lm.platform
+	if plat == "msvc" or plat == "clang-cl" or plat == "mingw" then
+		return "hlsl4"
+	end
+	if plat == "macos" then
+		return "metal_macos"
+	end
+	if plat == "emcc" then
+		return "wgsl"
+	end
+	if plat == "linux" then
+		return "glsl430"
+	end
+	return "unknown"
+end
+
+local function compile_shader(src, name)
+	local dep = name .. "_shader"
+	local target = lm.builddir .. "/" .. name
+	lm:runlua(dep) {
+		script = lm.basedir .. "/clibs/soluna/shader2c.lua",
+		inputs = lm.basedir .. "/" .. src,
+		outputs = lm.basedir .. "/" .. target,
+		args = {
+			shdc,
+			"$in",
+			"$out",
+			shader_lang(),
+		},
+	}
+	return dep
+end
+
+local sample_shader = compile_shader("extlua/perspective_quad.glsl", "perspective_quad.glsl.h")
+
+lm:dll "sample" {
+	sources = {
+		"extlua/extlua.c",
+		"extlua/sokolapi.c",
+		"extlua/solunaapi.c",
+		"extlua/extlua_sample.c",
+	},
+	objdeps = {
+		sample_shader,
+	},
+	includes = {
+		"3rd/lua",
+		"3rd",
+		"build",
+		"extlua",
+	},
+}

clibs/soluna/compile_lua.lua

@@ -30,6 +30,7 @@ local lua_code_src = {
 	"3rd/ltask/lualib",
 	"src/service",
 	"src/lualib",
+	"src/material",
 }
 
 return function(objdeps)

clibs/soluna/make.lua

@@ -31,6 +31,8 @@ lm:source_set "soluna_src" {
 	sources = {
 		"src/*.c",
 		"extlua/extlua_impl.c",
+		"extlua/sokolapi_impl.c",
+		"extlua/solunaapi_impl.c",
 	},
 	objdeps = objdeps,
 	defines = {