Floating Point Dither For All

3 files changed, 75 insertions, 64 deletions

diff --git a/plugins/MacAU/uLawEncode/uLawEncode.cpp b/plugins/MacAU/uLawEncode/uLawEncode.cpp
index 60e0bb1..9c663fb 100755
--- a/plugins/MacAU/uLawEncode/uLawEncode.cpp
+++ b/plugins/MacAU/uLawEncode/uLawEncode.cpp
@@ -229,23 +229,15 @@ void		uLawEncode::uLawEncodeKernel::Process(	const Float32 	*inSourceP,
 			inputSample = (inputSample * wet) + (drySample * dry);
 		}
 
-		//noise shaping to 32-bit floating point
-		Float32 fpTemp = inputSample;
-		fpNShape += (inputSample-fpTemp);
-		inputSample += fpNShape;
-		//for deeper space and warmth, we try a non-oscillating noise shaping
-		//that is kind of ruthless: it will forever retain the rounding errors
-		//except we'll dial it back a hair at the end of every buffer processed
-		//end noise shaping on 32 bit output
+		//32 bit dither, made small and tidy.
+		int expon; frexpf((Float32)inputSample, &expon);
+		long double dither = (rand()/(RAND_MAX*7.737125245533627e+25))*pow(2,expon+62);
+		inputSample += (dither-fpNShape); fpNShape = dither;
+		//end 32 bit dither
 		
 		*destP = inputSample;
 		
 		sourceP += inNumChannels; destP += inNumChannels;
 	}
-	fpNShape *= 0.999999;
-	//we will just delicately dial back the FP noise shaping, not even every sample
-	//this is a good place to put subtle 'no runaway' calculations, though bear in mind
-	//that it will be called more often when you use shorter sample buffers in the DAW.
-	//So, very low latency operation will call these calculations more often.
 }
 
diff --git a/plugins/MacAU/uLawEncode/uLawEncode.xcodeproj/christopherjohnson.pbxuser b/plugins/MacAU/uLawEncode/uLawEncode.xcodeproj/christopherjohnson.pbxuser
index 79aef9a..3d079b0 100755
--- a/plugins/MacAU/uLawEncode/uLawEncode.xcodeproj/christopherjohnson.pbxuser
+++ b/plugins/MacAU/uLawEncode/uLawEncode.xcodeproj/christopherjohnson.pbxuser
@@ -10,7 +10,7 @@
 				PBXFileTableDataSourceColumnSortingKey = PBXFileDataSource_Filename_ColumnID;
 				PBXFileTableDataSourceColumnWidthsKey = (
 					20,
-					292,
+					444,
 					20,
 					48,
 					43,
@@ -49,18 +49,20 @@
 					PBXFileDataSource_Warnings_ColumnID,
 				);
 			};
-			PBXPerProjectTemplateStateSaveDate = 561229885;
-			PBXWorkspaceStateSaveDate = 561229885;
+			PBXPerProjectTemplateStateSaveDate = 569686467;
+			PBXWorkspaceStateSaveDate = 569686467;
 		};
 		perUserProjectItems = {
-			8B27203D2173B23100396442 /* PlistBookmark */ = 8B27203D2173B23100396442 /* PlistBookmark */;
-			8BE627102159750A00E4E476 /* PlistBookmark */ = 8BE627102159750A00E4E476 /* PlistBookmark */;
+			8B79323121F4B9E7006E9731 /* PlistBookmark */ = 8B79323121F4B9E7006E9731 /* PlistBookmark */;
+			8B79323221F4B9E7006E9731 /* PBXTextBookmark */ = 8B79323221F4B9E7006E9731 /* PBXTextBookmark */;
+			8B79323421F4B9E7006E9731 /* PBXTextBookmark */ = 8B79323421F4B9E7006E9731 /* PBXTextBookmark */;
+			8B79323921F4BA03006E9731 /* PBXTextBookmark */ = 8B79323921F4BA03006E9731 /* PBXTextBookmark */;
 		};
 		sourceControlManager = 8BD3CCB8148830B20062E48C /* Source Control */;
 		userBuildSettings = {
 		};
 	};
-	8B27203D2173B23100396442 /* PlistBookmark */ = {
+	8B79323121F4B9E7006E9731 /* PlistBookmark */ = {
 		isa = PlistBookmark;
 		fRef = 8D01CCD10486CAD60068D4B7 /* Info.plist */;
 		fallbackIsa = PBXBookmark;
@@ -72,11 +74,41 @@
 		rLen = 0;
 		rLoc = 9223372036854775807;
 	};
+	8B79323221F4B9E7006E9731 /* PBXTextBookmark */ = {
+		isa = PBXTextBookmark;
+		fRef = 8BC6025B073B072D006C4272 /* uLawEncode.h */;
+		name = "uLawEncode.h: 50";
+		rLen = 1;
+		rLoc = 2740;
+		rType = 0;
+		vrLen = 1139;
+		vrLoc = 4128;
+	};
+	8B79323421F4B9E7006E9731 /* PBXTextBookmark */ = {
+		isa = PBXTextBookmark;
+		fRef = 8BA05A660720730100365D66 /* uLawEncode.cpp */;
+		name = "uLawEncode.cpp: 242";
+		rLen = 0;
+		rLoc = 10181;
+		rType = 0;
+		vrLen = 1133;
+		vrLoc = 9051;
+	};
+	8B79323921F4BA03006E9731 /* PBXTextBookmark */ = {
+		isa = PBXTextBookmark;
+		fRef = 8BA05A660720730100365D66 /* uLawEncode.cpp */;
+		name = "uLawEncode.cpp: 242";
+		rLen = 0;
+		rLoc = 10181;
+		rType = 0;
+		vrLen = 1159;
+		vrLoc = 9025;
+	};
 	8BA05A660720730100365D66 /* uLawEncode.cpp */ = {
 		uiCtxt = {
-			sepNavIntBoundsRect = "{{0, 0}, {824, 3276}}";
-			sepNavSelRange = "{9497, 258}";
-			sepNavVisRange = "{8738, 1941}";
+			sepNavIntBoundsRect = "{{0, 0}, {670, 3406}}";
+			sepNavSelRange = "{10181, 0}";
+			sepNavVisRange = "{9025, 1159}";
 			sepNavWindowFrame = "{{684, 45}, {816, 833}}";
 		};
 	};
@@ -92,7 +124,7 @@
 		uiCtxt = {
 			sepNavIntBoundsRect = "{{0, 0}, {894, 1781}}";
 			sepNavSelRange = "{2740, 1}";
-			sepNavVisRange = "{1993, 1589}";
+			sepNavVisRange = "{4128, 1139}";
 			sepNavWindowFrame = "{{732, 67}, {890, 810}}";
 		};
 	};
@@ -110,18 +142,6 @@
 		isa = PBXCodeSenseManager;
 		indexTemplatePath = "";
 	};
-	8BE627102159750A00E4E476 /* PlistBookmark */ = {
-		isa = PlistBookmark;
-		fRef = 8D01CCD10486CAD60068D4B7 /* Info.plist */;
-		fallbackIsa = PBXBookmark;
-		isK = 0;
-		kPath = (
-			CFBundleName,
-		);
-		name = /Users/christopherjohnson/Desktop/MacAU/uLawEncode/Info.plist;
-		rLen = 0;
-		rLoc = 9223372036854775808;
-	};
 	8D01CCC60486CAD60068D4B7 /* uLawEncode */ = {
 		activeExec = 0;
 	};
diff --git a/plugins/MacAU/uLawEncode/uLawEncode.xcodeproj/christopherjohnson.perspectivev3 b/plugins/MacAU/uLawEncode/uLawEncode.xcodeproj/christopherjohnson.perspectivev3
index 75813d1..663d11c 100755
--- a/plugins/MacAU/uLawEncode/uLawEncode.xcodeproj/christopherjohnson.perspectivev3
+++ b/plugins/MacAU/uLawEncode/uLawEncode.xcodeproj/christopherjohnson.perspectivev3
@@ -225,8 +225,8 @@
 	<array/>
 	<key>PerspectiveWidths</key>
 	<array>
-		<integer>841</integer>
-		<integer>841</integer>
+		<integer>899</integer>
+		<integer>899</integer>
 	</array>
 	<key>Perspectives</key>
 	<array>
@@ -256,8 +256,6 @@
 			<key>Layout</key>
 			<array>
 				<dict>
-					<key>BecomeActive</key>
-					<true/>
 					<key>ContentConfiguration</key>
 					<dict>
 						<key>PBXBottomSmartGroupGIDs</key>
@@ -282,7 +280,7 @@
 						<dict>
 							<key>PBXSmartGroupTreeModuleColumnWidthsKey</key>
 							<array>
-								<real>288</real>
+								<real>194</real>
 							</array>
 							<key>PBXSmartGroupTreeModuleColumnsKey_v4</key>
 							<array>
@@ -309,7 +307,7 @@
 								</array>
 							</array>
 							<key>PBXSmartGroupTreeModuleOutlineStateVisibleRectKey</key>
-							<string>{{0, 0}, {288, 595}}</string>
+							<string>{{0, 0}, {194, 656}}</string>
 						</dict>
 						<key>PBXTopSmartGroupGIDs</key>
 						<array/>
@@ -319,19 +317,19 @@
 					<key>GeometryConfiguration</key>
 					<dict>
 						<key>Frame</key>
-						<string>{{0, 0}, {305, 613}}</string>
+						<string>{{0, 0}, {211, 674}}</string>
 						<key>GroupTreeTableConfiguration</key>
 						<array>
 							<string>MainColumn</string>
-							<real>288</real>
+							<real>194</real>
 						</array>
 						<key>RubberWindowFrame</key>
-						<string>637 204 841 654 0 0 1440 878 </string>
+						<string>406 163 899 715 0 0 1440 878 </string>
 					</dict>
 					<key>Module</key>
 					<string>PBXSmartGroupTreeModule</string>
 					<key>Proportion</key>
-					<string>305pt</string>
+					<string>211pt</string>
 				</dict>
 				<dict>
 					<key>Dock</key>
@@ -342,7 +340,7 @@
 								<key>PBXProjectModuleGUID</key>
 								<string>8BD7274A1D46E5A5000176F0</string>
 								<key>PBXProjectModuleLabel</key>
-								<string>Info.plist</string>
+								<string>uLawEncode.cpp</string>
 								<key>PBXSplitModuleInNavigatorKey</key>
 								<dict>
 									<key>Split0</key>
@@ -350,14 +348,16 @@
 										<key>PBXProjectModuleGUID</key>
 										<string>8BD7274B1D46E5A5000176F0</string>
 										<key>PBXProjectModuleLabel</key>
-										<string>Info.plist</string>
+										<string>uLawEncode.cpp</string>
 										<key>_historyCapacity</key>
 										<integer>0</integer>
 										<key>bookmark</key>
-										<string>8B27203D2173B23100396442</string>
+										<string>8B79323921F4BA03006E9731</string>
 										<key>history</key>
 										<array>
-											<string>8BE627102159750A00E4E476</string>
+											<string>8B79323121F4B9E7006E9731</string>
+											<string>8B79323221F4B9E7006E9731</string>
+											<string>8B79323421F4B9E7006E9731</string>
 										</array>
 									</dict>
 									<key>SplitCount</key>
@@ -371,18 +371,18 @@
 							<key>GeometryConfiguration</key>
 							<dict>
 								<key>Frame</key>
-								<string>{{0, 0}, {531, 202}}</string>
+								<string>{{0, 0}, {683, 549}}</string>
 								<key>RubberWindowFrame</key>
-								<string>637 204 841 654 0 0 1440 878 </string>
+								<string>406 163 899 715 0 0 1440 878 </string>
 							</dict>
 							<key>Module</key>
 							<string>PBXNavigatorGroup</string>
 							<key>Proportion</key>
-							<string>202pt</string>
+							<string>549pt</string>
 						</dict>
 						<dict>
 							<key>Proportion</key>
-							<string>406pt</string>
+							<string>120pt</string>
 							<key>Tabs</key>
 							<array>
 								<dict>
@@ -396,9 +396,7 @@
 									<key>GeometryConfiguration</key>
 									<dict>
 										<key>Frame</key>
-										<string>{{10, 27}, {531, 379}}</string>
-										<key>RubberWindowFrame</key>
-										<string>637 204 841 654 0 0 1440 878 </string>
+										<string>{{10, 27}, {683, 93}}</string>
 									</dict>
 									<key>Module</key>
 									<string>XCDetailModule</string>
@@ -452,7 +450,9 @@
 									<key>GeometryConfiguration</key>
 									<dict>
 										<key>Frame</key>
-										<string>{{10, 27}, {531, 339}}</string>
+										<string>{{10, 27}, {683, 93}}</string>
+										<key>RubberWindowFrame</key>
+										<string>406 163 899 715 0 0 1440 878 </string>
 									</dict>
 									<key>Module</key>
 									<string>PBXBuildResultsModule</string>
@@ -461,7 +461,7 @@
 						</dict>
 					</array>
 					<key>Proportion</key>
-					<string>531pt</string>
+					<string>683pt</string>
 				</dict>
 			</array>
 			<key>Name</key>
@@ -480,11 +480,11 @@
 			</array>
 			<key>TableOfContents</key>
 			<array>
-				<string>8B27203E2173B23100396442</string>
+				<string>8B79323A21F4BA03006E9731</string>
 				<string>1CA23ED40692098700951B8B</string>
-				<string>8B27203F2173B23100396442</string>
+				<string>8B79323B21F4BA03006E9731</string>
 				<string>8BD7274A1D46E5A5000176F0</string>
-				<string>8B2720402173B23100396442</string>
+				<string>8B79323C21F4BA03006E9731</string>
 				<string>1CA23EDF0692099D00951B8B</string>
 				<string>1CA23EE00692099D00951B8B</string>
 				<string>1CA23EE10692099D00951B8B</string>
@@ -657,7 +657,7 @@
 	<key>StatusbarIsVisible</key>
 	<true/>
 	<key>TimeStamp</key>
-	<real>561230385.17758596</real>
+	<real>569686531.54984498</real>
 	<key>ToolbarConfigUserDefaultsMinorVersion</key>
 	<string>2</string>
 	<key>ToolbarDisplayMode</key>
@@ -674,11 +674,10 @@
 	<integer>5</integer>
 	<key>WindowOrderList</key>
 	<array>
-		<string>8B2720412173B23100396442</string>
 		<string>/Users/christopherjohnson/Desktop/MacAU/uLawEncode/uLawEncode.xcodeproj</string>
 	</array>
 	<key>WindowString</key>
-	<string>637 204 841 654 0 0 1440 878 </string>
+	<string>406 163 899 715 0 0 1440 878 </string>
 	<key>WindowToolsV3</key>
 	<array>
 		<dict>