Function GetBuffer

engine/gamesys/src/gamesys/scripts/script_resource.cpp:3287–3307

get resource buffer * gets the buffer from a resource * * @name resource.get_buffer * * @param path [type:hash|string] The path to the resource * @return buffer [type:buffer] The resource buffer * * @examples * How to get the data from a buffer * * ```lua * function init(self) * * local res_path = go.get("#mesh", "vertices") * local buf = resource.get_buffer(res_path) *

 * ```
 */
static int GetBuffer(lua_State* L)
{
    int top = lua_gettop(L);
    dmhash_t path_hash = dmScript::CheckHashOrString(L, 1);

    void* resource = CheckResource(L, g_ResourceModule.m_Factory, path_hash, "bufferc");

    dmGameSystem::BufferResource* buffer_resource = (dmGameSystem::BufferResource*)resource;

    if (!dmBuffer::IsBufferValid(buffer_resource->m_Buffer))
    {
        return luaL_error(L, "The buffer handle is invalid");
    }

    dmResource::IncRef(g_ResourceModule.m_Factory, buffer_resource);
    dmScript::LuaHBuffer luabuf(g_ResourceModule.m_Factory, (void*)buffer_resource);
    PushBuffer(L, luabuf);

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

/*# set resource buffer
 * Sets the buffer of a resource. By default, setting the resource buffer will either copy the data from the incoming buffer object