VERSIÓ 1.3

- [NEW] shader.init(), shader.enable i shader.disable
- [NEW] Deixe els shaders de Lynx i GBC de exemple.
- [NEW] file_getfilebuffer() ara soporta un tercer paràmetre opcional, per a 'zeroterminar' el buffer per si es un arxiu de text.

lua.cpp

@@ -527,6 +527,27 @@ extern "C" {
     }
 
 
+    // shaders
+    // ===============================================
+
+    static int cpp_shader_init(lua_State *L) {
+        const char* vstr = luaL_optstring(L, 1, NULL);
+        const char* fstr = luaL_optstring(L, 2, NULL);
+        shader_init(vstr, fstr);
+        return 0;
+    }
+
+    static int cpp_shader_enable(lua_State *L) {
+        shader_enable();
+        return 0;
+    }
+
+    static int cpp_shader_disable(lua_State *L) {
+        shader_disable();
+        return 0;
+    }
+
+
     // music
     // ===============================================
 
@@ -875,6 +896,12 @@ void push_lua_funcs() {
     lua_pushcfunction(L,cpp_draw_text);             lua_setfield(L, -2, "text");
     lua_setglobal(L, "draw");
 
+    lua_newtable(L);
+    lua_pushcfunction(L,cpp_shader_init);           lua_setfield(L, -2, "init");
+    lua_pushcfunction(L,cpp_shader_enable);         lua_setfield(L, -2, "enable");
+    lua_pushcfunction(L,cpp_shader_disable);        lua_setfield(L, -2, "disable");
+    lua_setglobal(L, "shader");
+
     lua_newtable(L);
     lua_pushcfunction(L,cpp_music_play);            lua_setfield(L, -2, "play");
     lua_pushcfunction(L,cpp_music_pause);           lua_setfield(L, -2, "pause");