Added Cocoa GUI for the High-Pass filter selection

Cocoa/AppDelegate.m

@@ -1,5 +1,6 @@
 #import "AppDelegate.h"
 #include "GBButtons.h"
+#include "gb.h"
 #import <Carbon/Carbon.h>
 
 @implementation AppDelegate
@@ -29,6 +30,7 @@
                                                               @"GBTurbo": @(kVK_Space),
 
                                                               @"GBFilter": @"NearestNeighbor",
+                                                              @"GBHighpassFilter": @(GB_HIGHPASS_REMOVE_DC_OFFSET),
                                                               }];
 }
 

Cocoa/Document.m

@@ -148,6 +148,7 @@ static void printImage(GB_gameboy_t *gb, uint32_t *image, uint8_t height,
     GB_set_rgb_encode_callback(&gb, rgbEncode);
     GB_set_camera_get_pixel_callback(&gb, cameraGetPixel);
     GB_set_camera_update_request_callback(&gb, cameraRequestUpdate);
+    GB_set_highpass_filter_mode(&gb, (GB_highpass_mode_t) [[NSUserDefaults standardUserDefaults] integerForKey:@"GBHighpassFilter"]);
     [self loadROM];
 }
 
@@ -292,6 +293,11 @@ static void printImage(GB_gameboy_t *gb, uint32_t *image, uint8_t height,
     [titleView addSubview: self.feedSaveButton];
     self.feedSaveButton.frame = (NSRect){{268, 2}, {48, 17}};
     
+    [[NSNotificationCenter defaultCenter] addObserver:self
+                                             selector:@selector(updateHighpassFilter)
+                                                 name:@"GBHighpassFilterChanged"
+                                               object:nil];
+    
     if ([[NSUserDefaults standardUserDefaults] boolForKey:@"EmulateDMG"]) {
         [self initDMG];
     }
@@ -1265,4 +1271,11 @@ static void printImage(GB_gameboy_t *gb, uint32_t *image, uint8_t height,
     }];
 }
 
+- (void) updateHighpassFilter
+{
+    if (GB_is_inited(&gb)) {
+        GB_set_highpass_filter_mode(&gb, (GB_highpass_mode_t) [[NSUserDefaults standardUserDefaults] integerForKey:@"GBHighpassFilter"]);
+    }
+}
+
 @end

Cocoa/GBPreferencesWindow.h

@@ -4,4 +4,5 @@
 @property IBOutlet NSTableView *controlsTableView;
 @property IBOutlet NSPopUpButton *graphicsFilterPopupButton;
 @property (strong) IBOutlet NSButton *aspectRatioCheckbox;
+@property (strong) IBOutlet NSPopUpButton *highpassFilterPopupButton;
 @end

Cocoa/GBPreferencesWindow.m

@@ -9,6 +9,7 @@
     NSInteger button_being_modified;
 
     NSPopUpButton *_graphicsFilterPopupButton;
+    NSPopUpButton *_highpassFilterPopupButton;
     NSButton *_aspectRatioCheckbox;
 }
 
@@ -46,6 +47,17 @@
     [_graphicsFilterPopupButton selectItemAtIndex:[[[self class] filterList] indexOfObject:filter]];
 }
 
+- (NSPopUpButton *)highpassFilterPopupButton
+{
+    return _highpassFilterPopupButton;
+}
+
+- (void)setHighpassFilterPopupButton:(NSPopUpButton *)highpassFilterPopupButton
+{
+    _highpassFilterPopupButton = highpassFilterPopupButton;
+    [_highpassFilterPopupButton selectItemAtIndex:[[[NSUserDefaults standardUserDefaults] objectForKey:@"GBHighpassFilter"] unsignedIntegerValue]];
+}
+
 - (NSInteger)numberOfRowsInTableView:(NSTableView *)tableView
 {
     return GBButtonCount;
@@ -94,14 +106,21 @@
     [self.controlsTableView reloadData];
     [self makeFirstResponder:self.controlsTableView];
 }
+
 - (IBAction)graphicFilterChanged:(NSPopUpButton *)sender
 {
-
     [[NSUserDefaults standardUserDefaults] setObject:[[self class] filterList][[sender indexOfSelectedItem]]
                                               forKey:@"GBFilter"];
     [[NSNotificationCenter defaultCenter] postNotificationName:@"GBFilterChanged" object:nil];
 }
 
+- (IBAction)highpassFilterChanged:(id)sender
+{
+    [[NSUserDefaults standardUserDefaults] setObject:@([sender indexOfSelectedItem])
+                                              forKey:@"GBHighpassFilter"];
+    [[NSNotificationCenter defaultCenter] postNotificationName:@"GBHighpassFilterChanged" object:nil];
+}
+
 - (IBAction)changeAspectRatio:(id)sender
 {
     [[NSUserDefaults standardUserDefaults] setBool: [(NSButton *)sender state] != NSOnState

Cocoa/Preferences.xib

@@ -1,7 +1,9 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="9531" systemVersion="14F1713" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
+<document type="com.apple.InterfaceBuilder3.Cocoa.XIB" version="3.0" toolsVersion="12121" systemVersion="16F73" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" customObjectInstantitationMethod="direct">
     <dependencies>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="9531"/>
+        <deployment identifier="macosx"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="12121"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <objects>
         <customObject id="-2" userLabel="File's Owner" customClass="AppDelegate">
@@ -15,22 +17,15 @@
             <windowStyleMask key="styleMask" titled="YES" closable="YES"/>
             <windowCollectionBehavior key="collectionBehavior" fullScreenAuxiliary="YES"/>
             <windowPositionMask key="initialPositionMask" leftStrut="YES" rightStrut="YES" topStrut="YES" bottomStrut="YES"/>
-            <rect key="contentRect" x="196" y="240" width="292" height="330"/>
+            <rect key="contentRect" x="196" y="240" width="292" height="378"/>
             <rect key="screenRect" x="0.0" y="0.0" width="2560" height="1417"/>
             <view key="contentView" id="EiT-Mj-1SZ">
-                <rect key="frame" x="0.0" y="0.0" width="292" height="330"/>
+                <rect key="frame" x="0.0" y="0.0" width="292" height="378"/>
                 <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                 <subviews>
-                    <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="Utu-t4-cLx">
+                    <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" fixedFrame="YES" allowsCharacterPickerTouchBarItem="NO" translatesAutoresizingMaskIntoConstraints="NO" id="T91-rh-rRp">
-                        <rect key="frame" x="18" y="201" width="256" height="17"/>
+                        <rect key="frame" x="18" y="341" width="256" height="17"/>
-                        <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" title="Button configuration:" id="YqW-Ds-VIC">
+                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
-                            <font key="font" metaFont="system"/>
-                            <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
-                            <color key="backgroundColor" name="controlColor" catalog="System" colorSpace="catalog"/>
-                        </textFieldCell>
-                    </textField>
-                    <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="T91-rh-rRp">
-                        <rect key="frame" x="18" y="293" width="256" height="17"/>
                         <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" title="Graphics Filter:" id="pXg-WY-8Q5">
                             <font key="font" metaFont="system"/>
                             <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
@@ -38,7 +33,8 @@
                         </textFieldCell>
                     </textField>
                     <popUpButton verticalHuggingPriority="750" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="6pP-kK-EEC">
-                        <rect key="frame" x="30" y="261" width="245" height="26"/>
+                        <rect key="frame" x="30" y="309" width="245" height="26"/>
+                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
                         <popUpButtonCell key="cell" type="push" bezelStyle="rounded" alignment="left" lineBreakMode="truncatingTail" borderStyle="borderAndBezel" imageScaling="proportionallyDown" inset="2" id="I1w-05-lGl">
                             <behavior key="behavior" lightByBackground="YES" lightByGray="YES"/>
                             <font key="font" metaFont="menu"/>
@@ -70,8 +66,29 @@
                             <action selector="graphicFilterChanged:" target="QvC-M9-y7g" id="n87-t4-fbV"/>
                         </connections>
                     </popUpButton>
+                    <popUpButton verticalHuggingPriority="750" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="T69-6N-dhT">
+                        <rect key="frame" x="30" y="223" width="245" height="26"/>
+                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
+                        <popUpButtonCell key="cell" type="push" title="Disabled (Keep DC Offset)" bezelStyle="rounded" alignment="left" lineBreakMode="truncatingTail" state="on" borderStyle="borderAndBezel" imageScaling="proportionallyDown" inset="2" selectedItem="Fgo-0S-zUG" id="om2-Bn-43B">
+                            <behavior key="behavior" lightByBackground="YES" lightByGray="YES"/>
+                            <font key="font" metaFont="menu"/>
+                            <menu key="menu" id="VCM-zy-2Dd">
+                                <items>
+                                    <menuItem title="Disabled (Keep DC Offset)" state="on" id="Fgo-0S-zUG">
+                                        <modifierMask key="keyEquivalentModifierMask"/>
+                                    </menuItem>
+                                    <menuItem title="Accurate (Emulate Hardware)" id="82j-Vv-nE6"/>
+                                    <menuItem title="Preserve Waveform" id="iUF-c2-fgt"/>
+                                </items>
+                            </menu>
+                        </popUpButtonCell>
+                        <connections>
+                            <action selector="highpassFilterChanged:" target="QvC-M9-y7g" id="CYt-0v-sw0"/>
+                        </connections>
+                    </popUpButton>
                     <button fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="Vfj-tg-7OP">
-                        <rect key="frame" x="18" y="237" width="256" height="18"/>
+                        <rect key="frame" x="18" y="285" width="256" height="18"/>
+                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
                         <buttonCell key="cell" type="check" title="Keep Aspect Ratio" bezelStyle="regularSquare" imagePosition="left" state="on" inset="2" id="lsj-rC-Eo6">
                             <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
                             <font key="font" metaFont="system"/>
@@ -80,8 +97,27 @@
                             <action selector="changeAspectRatio:" target="QvC-M9-y7g" id="mQG-Ib-1jN"/>
                         </connections>
                     </button>
+                    <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" fixedFrame="YES" allowsCharacterPickerTouchBarItem="NO" translatesAutoresizingMaskIntoConstraints="NO" id="Utu-t4-cLx">
+                        <rect key="frame" x="18" y="201" width="256" height="17"/>
+                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
+                        <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" title="Button configuration:" id="YqW-Ds-VIC">
+                            <font key="font" metaFont="system"/>
+                            <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
+                            <color key="backgroundColor" name="controlColor" catalog="System" colorSpace="catalog"/>
+                        </textFieldCell>
+                    </textField>
+                    <textField horizontalHuggingPriority="251" verticalHuggingPriority="750" fixedFrame="YES" allowsCharacterPickerTouchBarItem="NO" translatesAutoresizingMaskIntoConstraints="NO" id="WU3-oV-KHO">
+                        <rect key="frame" x="18" y="255" width="256" height="17"/>
+                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
+                        <textFieldCell key="cell" scrollable="YES" lineBreakMode="clipping" sendsActionOnEndEditing="YES" title="High-pass Filter:" id="YLF-RL-b2D">
+                            <font key="font" metaFont="system"/>
+                            <color key="textColor" name="labelColor" catalog="System" colorSpace="catalog"/>
+                            <color key="backgroundColor" name="controlColor" catalog="System" colorSpace="catalog"/>
+                        </textFieldCell>
+                    </textField>
                     <scrollView focusRingType="none" fixedFrame="YES" autohidesScrollers="YES" horizontalLineScroll="19" horizontalPageScroll="10" verticalLineScroll="19" verticalPageScroll="10" hasHorizontalScroller="NO" hasVerticalScroller="NO" usesPredominantAxisScrolling="NO" horizontalScrollElasticity="none" verticalScrollElasticity="none" translatesAutoresizingMaskIntoConstraints="NO" id="PBp-dj-EIa">
                         <rect key="frame" x="20" y="20" width="252" height="173"/>
+                        <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
                         <clipView key="contentView" focusRingType="none" ambiguous="YES" drawsBackground="NO" id="AMs-PO-nid">
                             <rect key="frame" x="1" y="1" width="250" height="171"/>
                             <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
@@ -129,7 +165,7 @@
                             <nil key="backgroundColor"/>
                         </clipView>
                         <scroller key="horizontalScroller" hidden="YES" verticalHuggingPriority="750" horizontal="YES" id="31h-at-Znm">
-                            <rect key="frame" x="-100" y="-100" width="209.5" height="16"/>
+                            <rect key="frame" x="-100" y="-100" width="210" height="16"/>
                             <autoresizingMask key="autoresizingMask"/>
                         </scroller>
                         <scroller key="verticalScroller" hidden="YES" verticalHuggingPriority="750" horizontal="NO" id="JkP-U1-jdy">
@@ -144,8 +180,9 @@
                 <outlet property="controlsTableView" destination="UDd-IJ-fxX" id="a1D-Md-yXv"/>
                 <outlet property="delegate" destination="-2" id="ASc-vN-Zbq"/>
                 <outlet property="graphicsFilterPopupButton" destination="6pP-kK-EEC" id="LS7-HY-kHC"/>
+                <outlet property="highpassFilterPopupButton" destination="T69-6N-dhT" id="0p6-4m-hb1"/>
             </connections>
-            <point key="canvasLocation" x="179" y="450"/>
+            <point key="canvasLocation" x="179" y="474"/>
         </window>
     </objects>
 </document>