scrap nanovg in favour of raw OpenGL

ibis.cabal

@@ -31,7 +31,6 @@ executable ibis
                      , monad-loops
                      , OpenGL
                      , text
-                     , nanovg
                      , magic
                      , split
                      , time

shell.nix

@@ -22,12 +22,14 @@ let
       doCheck = false;
       description = "Both high- and low-level bindings to the SDL library (version 2.0.4+).";
       license = stdenv.lib.licenses.bsd3;
+      enableLibraryProfiling = true;
+      enableExecutableProfiling = true;
     }) {};
 
   inherit (nixpkgs) pkgs;
 
-  f = { mkDerivation, base, linear, monad-loops, optparse-applicative, OpenGL,
+  f = { mkDerivation, base, containers, linear, magic, monad-loops,
-        poppler, stdenv, text
+        optparse-applicative, OpenGL, poppler, split, stdenv, text, time
       }:
       mkDerivation {
         pname = "ibis";
@@ -35,8 +37,8 @@ let
         src = ./.;
         isLibrary = false;
         isExecutable = true;
-        executableHaskellDepends = [ base linear sdl2 monad-loops
+        executableHaskellDepends = [ base containers linear sdl2 magic
-          OpenGL optparse-applicative poppler text ];
+          monad-loops OpenGL optparse-applicative poppler split text time ];
         description = "A pdf presenter";
         license = stdenv.lib.licenses.gpl3;
       };

src/Main.hs

@@ -4,10 +4,11 @@ module Main where
 import qualified SDL
 import qualified SDL.Raw.Video as SDL (glSetAttribute)
 import qualified SDL.Raw.Enum as SDL
+import qualified SDL.Raw.Basic as SDL
 
 import qualified Graphics.Rendering.OpenGL as GL (clear, flush, ClearBuffer(..))
 
-import qualified NanoVG as NVG
+-- import qualified NanoVG as NVG
 
 import Linear
 
@@ -30,6 +31,8 @@ import Data.Time.Clock
 
 import System.Exit (exitFailure)
 
+import Foreign.C.String
+
 import Magic
 
 -- internal imports
@@ -59,6 +62,9 @@ main = do
   verb opts ("Passed command line options: " ++ show opts)
   -- set Render quality
   SDL.HintRenderScaleQuality SDL.$= SDL.ScaleLinear
+  uncurry SDL.setHint =<< (,)
+    <$> newCString "SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS"
+    <*> newCString "0"
   -- check render quality
   renderQuality <- SDL.get SDL.HintRenderScaleQuality
   when (renderQuality /= SDL.ScaleLinear) $
@@ -83,9 +89,9 @@ main = do
   void $ SDL.glSetAttribute SDL.SDL_GL_SHARE_WITH_CURRENT_CONTEXT 1
   verb opts "Creating OpenGL context(s)"
   contexts <- zip (map fst wins) <$> mapM (SDL.glCreateContext . snd) wins
-  verb opts "Creating NanoVG context"
+  -- verb opts "Creating NanoVG context"
-  _ <- glewInit
+  -- _ <- glewInit
-  nano <- NVG.createGL3 (S.fromList [NVG.Antialias, NVG.StencilStrokes])
+  -- nano <- NVG.createGL3 (S.fromList [NVG.Antialias, NVG.StencilStrokes])
   verb opts "Initializing state"
   state <- newMVar <$> (
     State <$>

src/Util.hs

@@ -1,4 +1,4 @@
-{-# LANGUAGE ForeignFunctionInterface #-}
+-- {-# LANGUAGE ForeignFunctionInterface #-}
 module Util where
 
 import qualified SDL hiding (V2)
@@ -21,8 +21,8 @@ import Linear
 
 import Types
 
-foreign import ccall unsafe "glewInit"
+-- foreign import ccall unsafe "glewInit"
-  glewInit :: IO CInt
+--   glewInit :: IO CInt
 
 glWindowConfig :: SDL.WindowConfig
 glWindowConfig = SDL.defaultWindow