diff options
Diffstat (limited to 'dalos-limiter.lua')
| -rw-r--r-- | dalos-limiter.lua | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/dalos-limiter.lua b/dalos-limiter.lua new file mode 100644 index 0000000..5643f30 --- /dev/null +++ b/dalos-limiter.lua @@ -0,0 +1,60 @@ +dalosp.limiter = { + configure = function (self) + local accept, limit = iup.GetParam(self.name .. " configuration", nil, [[ +Limit: %i{The actual size this limiter is going to produce} +]], self.op or 0, self.maximize and 1 or 0) + if accept then + self.extra.limit = limit + self:input_change() + end + end, + + get_settings = function (self) + return { limit = self.extra.limit } + end, + + input_change = function (self, ind) + local h = self:get_linked_input(1) + if h then + self.color = cd.GREEN + local obj = { + h = h, + size = math.min(h:getsize(), self.extra.limit), + getname = function () return self.name end, + do_read = function (self, count, userdata) + return self.h:read(count, userdata) + end, + do_seek = function (self) + self.h:seek(self.offset, SEEK_SET) + end, + } + self:set_houtput(dalos.luahandle(obj)) + self.dcanvas:draw() + else + self.color = cd.YELLOW + self:set_houtput(nil) + self.dcanvas:draw() + end + end, + + create = function (d, tab, settings) + tab.ninputs = 1 + tab.noutputs = 1 + tab.otype = dalos.objtype.LUA_FILTER + tab.configure = dalosp.limiter.configure + tab.input_change = dalosp.limiter.input_change + tab.default_name = "Limiter" + tab.ntype = "Limiter" + tab.get_settings = dalosp.limiter.get_settings + local extra = { } + if not settings then settings = {} end + extra.limit = settings.limit or 0 + + local obj = dalos.object(d, tab, extra) + + return obj + end, +} + +dalos.limiter = dalosp.limiter.create +dalos:register_obj("Limiter", dalos.limiter, "Basic Filters") |