add aperture texture

Author: Remi-Gau

apertureTexture.m

@@ -0,0 +1,44 @@
+
+function cfg = apertureTexture(action, cfg, thisEvent)
+    
+    matrixSize = 400;
+    
+    switch action
+        
+        case 'init'
+            
+            cfg.aperture.texture = Screen('MakeTexture', cfg.screen.win, ...
+                cfg.color.background(1) * ones(cfg.screen.winRect([4 3])));
+            
+        case 'make'
+            
+            switch cfg.aperture.type
+                
+                case 'none'
+                    
+                    Screen('Fillrect', cfg.aperture.texture, [0 0 0 0]);
+                      
+                case 'circle'
+
+                    Screen('FillOval', cfg.aperture.texture, [0 0 0 0], ...
+                        CenterRectOnPoint([0 0 repmat(matrixSize, 1, 2)], ...
+                        cfg.screen.winRect(3) / 2, cfg.screen.winRect(4) / 2));
+
+            end
+            
+        case 'draw'
+            
+            Screen('DrawTexture', cfg.screen.win, cfg.aperture.texture);
+            
+            %         Screen('DrawTexture', cfg.screen.win, apertureTexture, ...
+            %             cfg.screen.winRect, cfg.screen.winRect, current.apertureAngle - 90);
+            
+            
+    end
+    
+    
+    
+    
+    
+    
+end

setDefaultsPTB.m

@@ -38,6 +38,9 @@
     fieldsToSet.fixation.width = 1;
     fieldsToSet.fixation.lineWidthPix = 5;
 
+    % define visual apperture field
+    fieldsToSet.aperture.type = 'none';
+
     if isfield(cfg, 'audio') && cfg.audio.do
 
         fieldsToSet.audio.fs = 44800;