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|
{-# LANGUAGE BangPatterns #-}
{-# LANGUAGE OverloadedStrings #-}
-- | Test that space usage is low and avoid GCs where possible.
module Main where
import qualified Data.Vector.Storable as SV
import qualified Data.Vector.Storable.Mutable as SVM
import Foreign.C (CInt)
import Foreign.Ptr
import Foreign.Storable
import SDL
import Weigh
-- | Main entry point.
main :: IO ()
main =
mainWith
(do setColumns [Case, Allocated, GCs]
wgroup
"pollEvent"
(sequence_
[ validateAction
("pollEvent " ++ show i)
pollEventTest
i
(\weight ->
if weightGCs weight > 0
then Just "Non-zero number of garbage collections!"
else if weightAllocatedBytes weight > 2000
then Just
"Allocated >2KB! Allocations should be constant."
else Nothing)
| i <- [1, 10, 100, 1000, 10000]
])
wgroup
"pollEvent+clear"
(sequence_
[ validateAction
("pollEvent + clear " ++ show i)
pollEventClearTest
i
(\weight ->
if weightGCs weight > 0
then Just "Non-zero number of garbage collections!"
else if weightAllocatedBytes weight > 4000
then Just
"Allocated >4KB! Allocations should be constant."
else Nothing)
| i <- [1, 10, 100, 1000, 10000]
])
wgroup
"pollEvent+present"
(sequence_
[ validateAction
("pollEvent + present " ++ show i)
pollEventPresentTest
i
(\weight ->
if weightGCs weight > 0
then Just "Non-zero number of garbage collections!"
else if weightAllocatedBytes weight > 4000
then Just
"Allocated >4KB! Allocations should be constant."
else Nothing)
| i <- [1, 10, 100, 1000]
])
wgroup
"pollEvent+drawColor"
(sequence_
[ validateAction
("pollEvent + drawColor " ++ show i)
pollEventDrawColorTest
i
(\weight ->
if weightGCs weight > 0
then Just "Non-zero number of garbage collections!"
else if weightAllocatedBytes weight > 4000
then Just
"Allocated >KB! Allocations should be constant."
else Nothing)
| i <- [1, 10, 100, 1000, 2000]
])
wgroup
"pollEvent+drawRect"
(sequence_
[ validateAction
("pollEvent + drawRect " ++ show i)
pollEventDrawRectTest
i
(\weight ->
if weightGCs weight > 0
then Just "Non-zero number of garbage collections!"
else if weightAllocatedBytes weight > 4000
then Just
"Allocated >4KB! Allocations should be constant."
else Nothing)
| i <- [1, 10, 100, 1000]
])
wgroup
"animated rect"
(sequence_
[ validateAction
("animated rect " ++ show i)
pollEventAnimRectTest
i
(\weight ->
if weightGCs weight > 0
then Just "Non-zero number of garbage collections!"
else if weightAllocatedBytes weight > 4000
then Just
"Allocated >4KB! Allocations should be constant."
else Nothing)
| i <- [1, 10, 100, 1000, 2000]
])
wgroup
"animated rects"
(sequence_
[ validateAction
("animated rects " ++ show i)
pollEventAnimRectsTest
i
(\weight ->
if weightGCs weight > 0
then Just "Non-zero number of garbage collections!"
else if weightAllocatedBytes weight > 5000
then Just
"Allocated >4KB! Allocations should be constant."
else Nothing)
| i <- [1, 10, 100, 1000, 2000, 3000]
]))
-- | Test that merely polling does not allocate or engage the GC.
-- <https://github.com/haskell-game/sdl2/issues/178>
pollEventTest :: Int -> IO ()
pollEventTest iters = do
initializeAll
let go :: Int -> IO ()
go 0 = pure ()
go i = do
_ <- pollEvent
go (i - 1)
go iters
-- | Test that merely polling and clearing the screen does not
-- allocate or engage the GC.
pollEventClearTest :: Int -> IO ()
pollEventClearTest iters = do
initializeAll
window <- createWindow "pollEventClearTest" defaultWindow
renderer <- createRenderer window (-1) defaultRenderer
let go :: Int -> IO ()
go 0 = pure ()
go i = do
_ <- pollEvent
clear renderer
go (i - 1)
go iters
-- | Test that merely polling and presenting does not allocate or
-- engage the GC.
pollEventPresentTest :: Int -> IO ()
pollEventPresentTest iters = do
initializeAll
window <- createWindow "pollEventPresentTest" defaultWindow
renderer <- createRenderer window (-1) defaultRenderer
let go :: Int -> IO ()
go 0 = pure ()
go i = do
_ <- pollEvent
clear renderer
present renderer
go (i - 1)
go iters
-- | Test that merely polling and drawColoring does not allocate or
-- engage the GC.
pollEventDrawColorTest :: Int -> IO ()
pollEventDrawColorTest iters = do
initializeAll
window <- createWindow "pollEventDrawColorTest" defaultWindow
renderer <- createRenderer window (-1) defaultRenderer
let go :: Int -> IO ()
go 0 = pure ()
go i = do
_ <- pollEvent
rendererDrawColor renderer $= V4 0 0 255 255
clear renderer
present renderer
go (i - 1)
go iters
-- | Draw a rectangle on screen.
pollEventDrawRectTest :: Int -> IO ()
pollEventDrawRectTest iters = do
initializeAll
window <- createWindow "pollEventDrawRectTest" defaultWindow
renderer <- createRenderer window (-1) defaultRenderer
let go :: Int -> IO ()
go 0 = pure ()
go i = do
_ <- pollEvent
rendererDrawColor renderer $= V4 40 40 40 255
clear renderer
rendererDrawColor renderer $= V4 255 255 255 255
fillRect renderer (Just (Rectangle (P (V2 40 40)) (V2 80 80)))
present renderer
go (i - 1)
go iters
--------------------------------------------------------------------------------
-- Animated rect test
data State = State
{ stateI :: !CInt
, stateV :: !(V2 CInt)
, stateP :: !(V2 CInt)
}
-- | Animate a rectangle on the screen for n iterations.
pollEventAnimRectTest :: CInt -> IO ()
pollEventAnimRectTest iters = do
initializeAll
window <-
createWindow
"pollEventAnimRectTest"
defaultWindow {windowInitialSize = defaultWindowSize}
renderer <- createRenderer window (-1) defaultRenderer
let go :: State -> IO ()
go !(State 0 _ _) = pure ()
go !(State i (V2 xv yv) p@(V2 x y)) = do
_ <- pollEvent
rendererDrawColor renderer $= V4 40 40 40 255
clear renderer
rendererDrawColor renderer $= V4 255 255 255 255
let xv'
| x + w > mw = -xv
| x < 0 = -xv
| otherwise = xv
yv'
| y + h > mh = -yv
| y < 0 = -yv
| otherwise = yv
v' = V2 xv' yv'
p' = p + v'
fillRect renderer (Just (Rectangle (P p') (V2 w h)))
present renderer
go (State (i - 1) v' p')
go (State iters (V2 2 1) (V2 0 0))
where
defaultWindowSize :: V2 CInt
defaultWindowSize = V2 800 600
mw :: CInt
mh :: CInt
V2 mw mh = defaultWindowSize
w :: CInt
h :: CInt
(w, h) = (100, 100)
--------------------------------------------------------------------------------
-- Animated rects test
data Square = Square
{ squareV :: !(V2 CInt)
, squareP :: !(V2 CInt)
}
instance Storable Square where
sizeOf _ = sizeOf (undefined :: V2 CInt) * 2
alignment _ = 1
poke ptr (Square x y) = do
poke (castPtr ptr) x
poke (plusPtr ptr (sizeOf x)) y
peek ptr = do
x <- peek (castPtr ptr)
y <- peek (plusPtr ptr (sizeOf x))
pure (Square x y)
-- | Animate a rectangle on the screen for n iterations.
pollEventAnimRectsTest :: CInt -> IO ()
pollEventAnimRectsTest iters = do
initializeAll
window <-
createWindow
"pollEventAnimRectsTest"
defaultWindow {windowInitialSize = defaultWindowSize}
renderer <- createRenderer window (-1) defaultRenderer
squares <-
SV.unsafeThaw
(SV.fromList
[ Square (V2 2 1) (V2 0 0)
, Square (V2 3 2) (V2 300 200)
, Square (V2 1 1) (V2 100 500)
, Square (V2 1 1) (V2 400 100)
, Square (V2 1 2) (V2 200 400)
, Square (V2 2 1) (V2 250 0)
, Square (V2 1 2) (V2 300 500)
, Square (V2 1 2) (V2 230 100)
, Square (V2 1 1) (V2 200 490)
])
let go :: CInt -> IO ()
go !0 = pure ()
go !i = do
_ <- pollEvent
rendererDrawColor renderer $= V4 40 40 40 255
clear renderer
rendererDrawColor renderer $= V4 255 255 255 255
let animateSquare si = do
Square (V2 xv yv) p@(V2 x y) <- SVM.read squares si
let xv'
| x + w > mw = -xv
| x < 0 = -xv
| otherwise = xv
yv'
| y + h > mh = -yv
| y < 0 = -yv
| otherwise = yv
v' = V2 xv' yv'
p' = p + v'
SVM.write squares si (Square v' p')
fillRect renderer (Just (Rectangle (P p') (V2 w h)))
let loop 0 = pure ()
loop si = animateSquare si>>loop (si-1)
loop (SVM.length squares - 1)
present renderer
go (i - 1)
go iters
where
defaultWindowSize :: V2 CInt
defaultWindowSize = V2 800 600
mw :: CInt
mh :: CInt
V2 mw mh = defaultWindowSize
w :: CInt
h :: CInt
(w, h) = (100, 100)
|
