Function Sys_LoadBuffer

engine/gamesys/src/gamesys/scripts/script_sys_gamesys.cpp:239–268

loads a buffer from a resource or disk path * The sys.load_buffer function will first try to load the resource * from any of the mounted resource locations and return the data if * any matching entries found. If not, the path will be tried * as is from the primary disk on the device. * * In order for the engine to include custom resources in the build process, you nee

     * ```
     */
    static int Sys_LoadBuffer(lua_State* L)
    {
        int top = lua_gettop(L);
        const char* filename = luaL_checkstring(L, 1);

        LuaRequest request;
        dmResource::LoadBufferType load_buffer_data;
        dmResource::Result res = HandleRequestLoading(g_SysModule.m_Factory, filename, filename, &load_buffer_data, &request);

        if (res != dmResource::RESULT_OK)
        {
            return luaL_error(L, "sys.load_buffer failed to load the resource (code=%d)", (int) res);
        }

        dmBuffer::StreamDeclaration streams_decl[] = {{ dmHashString64("data"), dmBuffer::VALUE_TYPE_UINT8, 1 }};

        dmBuffer::HBuffer buffer = 0;
        dmBuffer::Create(load_buffer_data.Size(), streams_decl, 1, &buffer);

        uint8_t* buffer_data     = 0;
        uint32_t buffer_datasize = 0;
        dmBuffer::GetBytes(buffer, (void**) &buffer_data, &buffer_datasize);
        memcpy(buffer_data, load_buffer_data.Begin(), load_buffer_data.Size());

        dmScript::LuaHBuffer luabuf(buffer, dmScript::OWNER_LUA);
        dmScript::PushBuffer(L, luabuf);

        assert(top + 1 == lua_gettop(L));
        return 1;
    }

    /*# loads a buffer from a resource or disk path asynchronously
     * The sys.load_buffer function will first try to load the resource