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--------------------------------------------------------------------------------
-- Profiler: a simple class to help profiling code
--------------------------------------------------------------------------------
local Profiler = {}
function xlua.Profiler(mode,verbose)
local self = {}
self.events = {}
self.list = {}
self.off = (mode == 'off') or false
self.verbose = verbose or false
for k,v in pairs(Profiler) do
self[k] = v
end
return self
end
function Profiler:start(name, fps)
if self.events[name] then
-- update
self.events[name].cpu = os.clock()
self.events[name].real = sys.clock()
else
-- create
self.events[name] = {cpu=os.clock(), real=sys.clock(), name=name}
self.list[#self.list+1] = self.events[name]
end
if fps and fps == 'fps' then
self.events[name].fps = true
end
if self.verbose then io.write('<' .. name .. '>') io.flush() end
end
function Profiler:setColor(name, color)
if self.events[name] then
-- update
self.events[name].color = color
else
error('# ERROR: There is no such profiler - '.. name..', create it first')
end
end
function Profiler:cpu(name,divider)
local delta = os.clock() - self.events[name].cpu
if divider then delta = delta / divider end
self.events[name].cpud = delta
return delta
end
function Profiler:real(name,divider)
local delta = sys.clock() - self.events[name].real
if divider then delta = delta / divider end
self.events[name].reald = delta
return delta
end
function Profiler:lap(name,divider)
local r = self:real(name,divider)
local c = self:cpu(name,divider)
if self.verbose then io.write('\r') self:print(name) end
return r,c
end
function Profiler:format(name)
return string.format('$ real | cpu: %f | %f <%s>',
self.events[name].reald or -1, self.events[name].cpud or -1, name)
end
function Profiler:print(name)
if not self.off then
print(self:format(name))
end
end
function Profiler:formatAll()
local str = '$ profiler report:'
for i = 1,#self.list do
if self.list[i].fps then
str = str .. '\n' .. string.format('$ real %f | cpu %f <%s> = %f fps',
self.list[i].reald or -1,
self.list[i].cpud or -1,
self.list[i].name,
1/self.list[i].reald)
else
str = str .. '\n' .. string.format('$ real %f | cpu %f <%s>',
self.list[i].reald or -1,
self.list[i].cpud or -1,
self.list[i].name)
end
end
return str
end
function Profiler:printAll()
if not self.off then
print(self:formatAll())
end
end
function Profiler:displayAll(args)
-- args
local x = args.x or 0
local y = args.y or 0
local zoom = args.zoom or 1
local painter = args.painter or args.win
local font = args.font or 24*zoom
if not painter then error('# ERROR: Profiler.displayAll() needs a painter') end
painter:setfont(qt.QFont{serif=false,italic=false,size=font})
if not self.off then
for i = 1,#self.list do
painter:setcolor(self.list[i].color or "black")
local str
if self.list[i].fps then
str = string.format('$ real %f | cpu %f <%s> = %f fps',
self.list[i].reald or -1,
self.list[i].cpud or -1,
self.list[i].name,
1/self.list[i].reald)
else
str = string.format('$ real %f | cpu %f <%s>',
self.list[i].reald or -1,
self.list[i].cpud or -1,
self.list[i].name)
end
-- disp line:
painter:moveto(x,y); y = y + font*1.5
painter:show(str)
end
end
end
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