Ported a few more color adjustment filters to the Mac. Tweaked the wa…

…y that GPUImageView works on the Mac to support resizing correctly.

examples/Mac/FilterShowcase/SLSFilterShowcaseWindowController.h

@@ -18,6 +18,11 @@ typedef enum {
     GPUIMAGE_TRANSFORM3D,
     GPUIMAGE_CROP,
     GPUIMAGE_MASK,
+    GPUIMAGE_GAMMA,
+    GPUIMAGE_TONECURVE,
+    GPUIMAGE_HIGHLIGHTSHADOW,
+    GPUIMAGE_HAZE,
+    GPUIMAGE_SEPIA,
     GPUIMAGE_PIXELLATE,
     GPUIMAGE_GRAYSCALE,
     GPUIMAGE_SOBELEDGEDETECTION,

examples/Mac/FilterShowcase/SLSFilterShowcaseWindowController.m

@@ -207,6 +207,51 @@ - (void)changeSelectedRow:(NSUInteger)newRowIndex;
             self.enableSlider = NO;
             needsSecondImage = YES;
         }; break;
+        case GPUIMAGE_GAMMA:
+        {
+            currentlySelectedFilter = [[GPUImageGammaFilter alloc] init];
+
+            self.minimumSliderValue = 0.0;
+            self.maximumSliderValue = 3.0;
+            self.currentSliderValue = 1.0;
+            self.enableSlider = YES;
+        }; break;
+        case GPUIMAGE_TONECURVE:
+        {
+            currentlySelectedFilter = [[GPUImageToneCurveFilter alloc] init];
+
+            self.minimumSliderValue = 0.0;
+            self.maximumSliderValue = 1.0;
+            self.currentSliderValue = 0.5;
+            self.enableSlider = YES;
+        }; break;
+        case GPUIMAGE_HIGHLIGHTSHADOW:
+        {
+            currentlySelectedFilter = [[GPUImageHighlightShadowFilter alloc] init];
+
+            self.minimumSliderValue = 0.0;
+            self.maximumSliderValue = 1.0;
+            self.currentSliderValue = 1.0;
+            self.enableSlider = YES;
+        }; break;
+        case GPUIMAGE_HAZE:
+        {
+            currentlySelectedFilter = [[GPUImageHazeFilter alloc] init];
+
+            self.minimumSliderValue = -0.2;
+            self.maximumSliderValue = 0.2;
+            self.currentSliderValue = 0.2;
+            self.enableSlider = YES;
+        }; break;
+        case GPUIMAGE_SEPIA:
+        {
+            currentlySelectedFilter = [[GPUImageSepiaFilter alloc] init];
+
+            self.minimumSliderValue = 0.0;
+            self.maximumSliderValue = 1.0;
+            self.currentSliderValue = 1.0;
+            self.enableSlider = YES;
+        }; break;
         case GPUIMAGE_GRAYSCALE:
         {
             currentlySelectedFilter = [[GPUImageGrayscaleFilter alloc] init];
@@ -573,6 +618,11 @@ - (void)setCurrentSliderValue:(CGFloat)newValue;
         case GPUIMAGE_HUE: [(GPUImageHueFilter *)currentlySelectedFilter setHue:_currentSliderValue]; break;
         case GPUIMAGE_WHITEBALANCE: [(GPUImageWhiteBalanceFilter *)currentlySelectedFilter setTemperature:_currentSliderValue]; break;
         case GPUIMAGE_MONOCHROME: [(GPUImageMonochromeFilter *)currentlySelectedFilter setIntensity:_currentSliderValue]; break;
+        case GPUIMAGE_GAMMA: [(GPUImageGammaFilter *)currentlySelectedFilter setGamma:_currentSliderValue]; break;
+        case GPUIMAGE_TONECURVE: [(GPUImageToneCurveFilter *)currentlySelectedFilter setBlueControlPoints:[NSArray arrayWithObjects:[NSValue valueWithPoint:NSMakePoint(0.0, 0.0)], [NSValue valueWithPoint:NSMakePoint(0.5, _currentSliderValue)], [NSValue valueWithPoint:NSMakePoint(1.0, 0.75)], nil]]; break;
+        case GPUIMAGE_HIGHLIGHTSHADOW: [(GPUImageHighlightShadowFilter *)currentlySelectedFilter setHighlights:_currentSliderValue]; break;
+        case GPUIMAGE_HAZE: [(GPUImageHazeFilter *)currentlySelectedFilter setDistance:_currentSliderValue]; break;
+        case GPUIMAGE_SEPIA: [(GPUImageSepiaFilter *)currentlySelectedFilter setIntensity:_currentSliderValue]; break;
         case GPUIMAGE_PIXELLATE: [(GPUImagePixellateFilter *)currentlySelectedFilter setFractionalWidthOfAPixel:_currentSliderValue]; break;
         case GPUIMAGE_KUWAHARA: [(GPUImageKuwaharaFilter *)currentlySelectedFilter setRadius:round(_currentSliderValue)]; break;
         case GPUIMAGE_SHARPEN: [(GPUImageSharpenFilter *)currentlySelectedFilter setSharpness:_currentSliderValue]; break;
@@ -639,6 +689,11 @@ - (id)tableView:(NSTableView *)aTableView objectValueForTableColumn:(NSTableColu
         case GPUIMAGE_TRANSFORM3D: tableRowTitle = @"Transform (3-D)"; break;
         case GPUIMAGE_CROP: tableRowTitle = @"Crop"; break;
         case GPUIMAGE_MASK: tableRowTitle = @"Mask"; break;
+        case GPUIMAGE_GAMMA: tableRowTitle = @"Gamma"; break;
+        case GPUIMAGE_TONECURVE: tableRowTitle = @"Tone curve"; break;
+        case GPUIMAGE_HIGHLIGHTSHADOW: tableRowTitle = @"Highlights and shadows"; break;
+        case GPUIMAGE_HAZE: tableRowTitle = @"Haze"; break;
+        case GPUIMAGE_SEPIA: tableRowTitle = @"Sepia tone"; break;
         case GPUIMAGE_GAUSSIAN: tableRowTitle = @"Gaussian blur"; break;
         case GPUIMAGE_GAUSSIAN_SELECTIVE: tableRowTitle = @"Gaussian selective blur"; break;
         case GPUIMAGE_GAUSSIAN_POSITION: tableRowTitle = @"Gaussian (centered)"; break;

examples/Mac/SimplePhotoFilter/SimplePhotoFilter.xcodeproj/project.pbxproj

@@ -155,9 +155,9 @@
 			buildConfigurationList = BCA3F35D1723A2E800E28AEC /* Build configuration list for PBXNativeTarget "SimplePhotoFilter" */;
 			buildPhases = (
 				BCA3F3391723A2E800E28AEC /* Sources */,
-				BCF40F341724AF95005AE36A /* CopyFiles */,
 				BCA3F33A1723A2E800E28AEC /* Frameworks */,
 				BCA3F33B1723A2E800E28AEC /* Resources */,
+				BCF40F341724AF95005AE36A /* CopyFiles */,
 			);
 			buildRules = (
 			);

framework/GPUImageMac.xcodeproj/project.pbxproj

@@ -11,6 +11,18 @@
 		BCA3F3621723A8FA00E28AEC /* OpenGL.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = BCA3F3601723A8FA00E28AEC /* OpenGL.framework */; };
 		BCA3F3631723A8FA00E28AEC /* QuartzCore.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = BCA3F3611723A8FA00E28AEC /* QuartzCore.framework */; };
 		BCA3F3651723A96600E28AEC /* GPUImage.h in Headers */ = {isa = PBXBuildFile; fileRef = BCA3F3641723A96600E28AEC /* GPUImage.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		BCB009E6172A1BBD00DB804C /* GPUImageGammaFilter.h in Headers */ = {isa = PBXBuildFile; fileRef = BCB009E4172A1BBD00DB804C /* GPUImageGammaFilter.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		BCB009E7172A1BBD00DB804C /* GPUImageGammaFilter.m in Sources */ = {isa = PBXBuildFile; fileRef = BCB009E5172A1BBD00DB804C /* GPUImageGammaFilter.m */; };
+		BCB009EA172A1BE800DB804C /* GPUImageToneCurveFilter.h in Headers */ = {isa = PBXBuildFile; fileRef = BCB009E8172A1BE800DB804C /* GPUImageToneCurveFilter.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		BCB009EB172A1BE800DB804C /* GPUImageToneCurveFilter.m in Sources */ = {isa = PBXBuildFile; fileRef = BCB009E9172A1BE800DB804C /* GPUImageToneCurveFilter.m */; };
+		BCB009F0172A23AA00DB804C /* GPUImageHazeFilter.h in Headers */ = {isa = PBXBuildFile; fileRef = BCB009EC172A23A900DB804C /* GPUImageHazeFilter.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		BCB009F1172A23AA00DB804C /* GPUImageHazeFilter.m in Sources */ = {isa = PBXBuildFile; fileRef = BCB009ED172A23A900DB804C /* GPUImageHazeFilter.m */; };
+		BCB009F2172A23AA00DB804C /* GPUImageHighlightShadowFilter.h in Headers */ = {isa = PBXBuildFile; fileRef = BCB009EE172A23AA00DB804C /* GPUImageHighlightShadowFilter.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		BCB009F3172A23AA00DB804C /* GPUImageHighlightShadowFilter.m in Sources */ = {isa = PBXBuildFile; fileRef = BCB009EF172A23AA00DB804C /* GPUImageHighlightShadowFilter.m */; };
+		BCB009F6172A243400DB804C /* GPUImageSepiaFilter.h in Headers */ = {isa = PBXBuildFile; fileRef = BCB009F4172A243300DB804C /* GPUImageSepiaFilter.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		BCB009F7172A243400DB804C /* GPUImageSepiaFilter.m in Sources */ = {isa = PBXBuildFile; fileRef = BCB009F5172A243400DB804C /* GPUImageSepiaFilter.m */; };
+		BCB009FA172A246E00DB804C /* GPUImageColorMatrixFilter.h in Headers */ = {isa = PBXBuildFile; fileRef = BCB009F8172A246D00DB804C /* GPUImageColorMatrixFilter.h */; settings = {ATTRIBUTES = (Public, ); }; };
+		BCB009FB172A246E00DB804C /* GPUImageColorMatrixFilter.m in Sources */ = {isa = PBXBuildFile; fileRef = BCB009F9172A246E00DB804C /* GPUImageColorMatrixFilter.m */; };
 		BCF40F1217247D68005AE36A /* GPUImageContext.h in Headers */ = {isa = PBXBuildFile; fileRef = BCF40F1017247D68005AE36A /* GPUImageContext.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		BCF40F1317247D68005AE36A /* GPUImageContext.m in Sources */ = {isa = PBXBuildFile; fileRef = BCF40F1117247D68005AE36A /* GPUImageContext.m */; };
 		BCF40F1617247FD8005AE36A /* GLProgram.h in Headers */ = {isa = PBXBuildFile; fileRef = BCF40F1417247FD8005AE36A /* GLProgram.h */; settings = {ATTRIBUTES = (Public, ); }; };
@@ -166,6 +178,18 @@
 		BCA3F3601723A8FA00E28AEC /* OpenGL.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = OpenGL.framework; path = System/Library/Frameworks/OpenGL.framework; sourceTree = SDKROOT; };
 		BCA3F3611723A8FA00E28AEC /* QuartzCore.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = QuartzCore.framework; path = System/Library/Frameworks/QuartzCore.framework; sourceTree = SDKROOT; };
 		BCA3F3641723A96600E28AEC /* GPUImage.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = GPUImage.h; path = Source/Mac/GPUImage.h; sourceTree = SOURCE_ROOT; };
+		BCB009E4172A1BBD00DB804C /* GPUImageGammaFilter.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = GPUImageGammaFilter.h; path = Source/GPUImageGammaFilter.h; sourceTree = SOURCE_ROOT; };
+		BCB009E5172A1BBD00DB804C /* GPUImageGammaFilter.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = GPUImageGammaFilter.m; path = Source/GPUImageGammaFilter.m; sourceTree = SOURCE_ROOT; };
+		BCB009E8172A1BE800DB804C /* GPUImageToneCurveFilter.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = GPUImageToneCurveFilter.h; path = Source/GPUImageToneCurveFilter.h; sourceTree = SOURCE_ROOT; };
+		BCB009E9172A1BE800DB804C /* GPUImageToneCurveFilter.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = GPUImageToneCurveFilter.m; path = Source/GPUImageToneCurveFilter.m; sourceTree = SOURCE_ROOT; };
+		BCB009EC172A23A900DB804C /* GPUImageHazeFilter.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = GPUImageHazeFilter.h; path = Source/GPUImageHazeFilter.h; sourceTree = SOURCE_ROOT; };
+		BCB009ED172A23A900DB804C /* GPUImageHazeFilter.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = GPUImageHazeFilter.m; path = Source/GPUImageHazeFilter.m; sourceTree = SOURCE_ROOT; };
+		BCB009EE172A23AA00DB804C /* GPUImageHighlightShadowFilter.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = GPUImageHighlightShadowFilter.h; path = Source/GPUImageHighlightShadowFilter.h; sourceTree = SOURCE_ROOT; };
+		BCB009EF172A23AA00DB804C /* GPUImageHighlightShadowFilter.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = GPUImageHighlightShadowFilter.m; path = Source/GPUImageHighlightShadowFilter.m; sourceTree = SOURCE_ROOT; };
+		BCB009F4172A243300DB804C /* GPUImageSepiaFilter.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = GPUImageSepiaFilter.h; path = Source/GPUImageSepiaFilter.h; sourceTree = SOURCE_ROOT; };
+		BCB009F5172A243400DB804C /* GPUImageSepiaFilter.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = GPUImageSepiaFilter.m; path = Source/GPUImageSepiaFilter.m; sourceTree = SOURCE_ROOT; };
+		BCB009F8172A246D00DB804C /* GPUImageColorMatrixFilter.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = GPUImageColorMatrixFilter.h; path = Source/GPUImageColorMatrixFilter.h; sourceTree = SOURCE_ROOT; };
+		BCB009F9172A246E00DB804C /* GPUImageColorMatrixFilter.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = GPUImageColorMatrixFilter.m; path = Source/GPUImageColorMatrixFilter.m; sourceTree = SOURCE_ROOT; };
 		BCF40F1017247D68005AE36A /* GPUImageContext.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = GPUImageContext.h; path = Source/Mac/GPUImageContext.h; sourceTree = SOURCE_ROOT; };
 		BCF40F1117247D68005AE36A /* GPUImageContext.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = GPUImageContext.m; path = Source/Mac/GPUImageContext.m; sourceTree = SOURCE_ROOT; };
 		BCF40F1417247FD8005AE36A /* GLProgram.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = GLProgram.h; path = Source/GLProgram.h; sourceTree = SOURCE_ROOT; };
@@ -465,6 +489,18 @@
 				BCF867DF17278D1900912E34 /* GPUImageGrayscaleFilter.m */,
 				BCF867E61728477200912E34 /* GPUImageFalseColorFilter.h */,
 				BCF867E71728477200912E34 /* GPUImageFalseColorFilter.m */,
+				BCB009E4172A1BBD00DB804C /* GPUImageGammaFilter.h */,
+				BCB009E5172A1BBD00DB804C /* GPUImageGammaFilter.m */,
+				BCB009E8172A1BE800DB804C /* GPUImageToneCurveFilter.h */,
+				BCB009E9172A1BE800DB804C /* GPUImageToneCurveFilter.m */,
+				BCB009EE172A23AA00DB804C /* GPUImageHighlightShadowFilter.h */,
+				BCB009EF172A23AA00DB804C /* GPUImageHighlightShadowFilter.m */,
+				BCB009EC172A23A900DB804C /* GPUImageHazeFilter.h */,
+				BCB009ED172A23A900DB804C /* GPUImageHazeFilter.m */,
+				BCB009F8172A246D00DB804C /* GPUImageColorMatrixFilter.h */,
+				BCB009F9172A246E00DB804C /* GPUImageColorMatrixFilter.m */,
+				BCB009F4172A243300DB804C /* GPUImageSepiaFilter.h */,
+				BCB009F5172A243400DB804C /* GPUImageSepiaFilter.m */,
 				BCF8689B1728861E00912E34 /* GPUImageOpacityFilter.h */,
 				BCF8689C1728861F00912E34 /* GPUImageOpacityFilter.m */,
 			);
@@ -658,6 +694,12 @@
 				BCF86899172883A300912E34 /* GPUImageMaskFilter.h in Headers */,
 				BCF8689D1728862100912E34 /* GPUImageOpacityFilter.h in Headers */,
 				BCF868A11728866400912E34 /* GPUImageAlphaBlendFilter.h in Headers */,
+				BCB009E6172A1BBD00DB804C /* GPUImageGammaFilter.h in Headers */,
+				BCB009EA172A1BE800DB804C /* GPUImageToneCurveFilter.h in Headers */,
+				BCB009F0172A23AA00DB804C /* GPUImageHazeFilter.h in Headers */,
+				BCB009F2172A23AA00DB804C /* GPUImageHighlightShadowFilter.h in Headers */,
+				BCB009F6172A243400DB804C /* GPUImageSepiaFilter.h in Headers */,
+				BCB009FA172A246E00DB804C /* GPUImageColorMatrixFilter.h in Headers */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -793,6 +835,12 @@
 				BCF8689A172883A300912E34 /* GPUImageMaskFilter.m in Sources */,
 				BCF8689E1728862100912E34 /* GPUImageOpacityFilter.m in Sources */,
 				BCF868A21728866400912E34 /* GPUImageAlphaBlendFilter.m in Sources */,
+				BCB009E7172A1BBD00DB804C /* GPUImageGammaFilter.m in Sources */,
+				BCB009EB172A1BE800DB804C /* GPUImageToneCurveFilter.m in Sources */,
+				BCB009F1172A23AA00DB804C /* GPUImageHazeFilter.m in Sources */,
+				BCB009F3172A23AA00DB804C /* GPUImageHighlightShadowFilter.m in Sources */,
+				BCB009F7172A243400DB804C /* GPUImageSepiaFilter.m in Sources */,
+				BCB009FB172A246E00DB804C /* GPUImageColorMatrixFilter.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -826,6 +874,7 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
+				INSTALL_PATH = "@loader_path/../Frameworks";
 				MACOSX_DEPLOYMENT_TARGET = 10.6;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = macosx;
@@ -853,6 +902,7 @@
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNINITIALIZED_AUTOS = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
+				INSTALL_PATH = "@loader_path/../Frameworks";
 				MACOSX_DEPLOYMENT_TARGET = 10.6;
 				SDKROOT = macosx;
 			};

framework/Source/GPUImageChromaKeyBlendFilter.m

@@ -99,14 +99,14 @@ - (void)setColorToReplaceRed:(GLfloat)redComponent green:(GLfloat)greenComponent
     [self setVec3:colorToReplace forUniform:colorToReplaceUniform program:filterProgram];
 }
 
-- (void)setThresholdSensitivity:(CGFloat)newValue;
+- (void)setThresholdSensitivity:(GLfloat)newValue;
 {
     _thresholdSensitivity = newValue;
 
     [self setFloat:_thresholdSensitivity forUniform:thresholdSensitivityUniform program:filterProgram];
 }
 
-- (void)setSmoothing:(CGFloat)newValue;
+- (void)setSmoothing:(GLfloat)newValue;
 {
     _smoothing = newValue;
 

framework/Source/GPUImageColorMatrixFilter.m

@@ -1,5 +1,6 @@
 #import "GPUImageColorMatrixFilter.h"
 
+#if TARGET_IPHONE_SIMULATOR || TARGET_OS_IPHONE
 NSString *const kGPUImageColorMatrixFragmentShaderString = SHADER_STRING
 (
  varying highp vec2 textureCoordinate;
@@ -16,7 +17,26 @@ void main()
 
      gl_FragColor = (intensity * outputColor) + ((1.0 - intensity) * textureColor);
  }
-);                                                                         
+);
+#else
+NSString *const kGPUImageColorMatrixFragmentShaderString = SHADER_STRING
+(
+ varying vec2 textureCoordinate;
+
+ uniform sampler2D inputImageTexture;
+
+ uniform mat4 colorMatrix;
+ uniform float intensity;
+
+ void main()
+ {
+     vec4 textureColor = texture2D(inputImageTexture, textureCoordinate);
+     vec4 outputColor = textureColor * colorMatrix;
+
+     gl_FragColor = (intensity * outputColor) + ((1.0 - intensity) * textureColor);
+ }
+);
+#endif
 
 @implementation GPUImageColorMatrixFilter
 

framework/Source/GPUImageFilterGroup.h

@@ -13,6 +13,6 @@
 // Filter management
 - (void)addFilter:(GPUImageOutput<GPUImageInput> *)newFilter;
 - (GPUImageOutput<GPUImageInput> *)filterAtIndex:(NSUInteger)filterIndex;
-- (int)filterCount;
+- (NSUInteger)filterCount;
 
 @end

framework/Source/GPUImageFilterGroup.m

@@ -32,7 +32,7 @@ - (void)addFilter:(GPUImageOutput<GPUImageInput> *)newFilter;
     return [filters objectAtIndex:filterIndex];
 }
 
-- (int)filterCount;
+- (NSUInteger)filterCount;
 {
     return [filters count];
 }

framework/Source/GPUImageGammaFilter.m

@@ -1,5 +1,6 @@
 #import "GPUImageGammaFilter.h"
 
+#if TARGET_IPHONE_SIMULATOR || TARGET_OS_IPHONE
 NSString *const kGPUImageGammaFragmentShaderString = SHADER_STRING
 (
  varying highp vec2 textureCoordinate;
@@ -14,6 +15,22 @@ void main()
      gl_FragColor = vec4(pow(textureColor.rgb, vec3(gamma)), textureColor.w);
  }
 );
+#else
+NSString *const kGPUImageGammaFragmentShaderString = SHADER_STRING
+(
+ varying vec2 textureCoordinate;
+
+ uniform sampler2D inputImageTexture;
+ uniform float gamma;
+
+ void main()
+ {
+     vec4 textureColor = texture2D(inputImageTexture, textureCoordinate);
+
+     gl_FragColor = vec4(pow(textureColor.rgb, vec3(gamma)), textureColor.w);
+ }
+);
+#endif
 
 @implementation GPUImageGammaFilter
 

framework/Source/GPUImageHazeFilter.m

@@ -1,5 +1,6 @@
 #import "GPUImageHazeFilter.h"
 
+#if TARGET_IPHONE_SIMULATOR || TARGET_OS_IPHONE
 NSString *const kGPUImageHazeFragmentShaderString = SHADER_STRING
 (
  varying highp vec2 textureCoordinate;
@@ -18,15 +19,36 @@ void main()
 
 	 highp vec4 c = texture2D(inputImageTexture, textureCoordinate) ; // consider using unpremultiply
 
-
-	 c = (c - d * color) / (1.0 -d); 
+	 c = (c - d * color) / (1.0 -d);
 
 	 gl_FragColor = c; //consider using premultiply(c);
+ }
+);
+#else
+NSString *const kGPUImageHazeFragmentShaderString = SHADER_STRING
+(
+ varying vec2 textureCoordinate;
+
+ uniform sampler2D inputImageTexture;
+
+ uniform float distance;
+ uniform float slope;
+
+ void main()
+ {
+     //todo reconsider precision modifiers
+	 vec4 color = vec4(1.0);//todo reimplement as a parameter
 
-
+	 float  d = textureCoordinate.y * slope  +  distance;
+
+	 vec4 c = texture2D(inputImageTexture, textureCoordinate) ; // consider using unpremultiply
+
+	 c = (c - d * color) / (1.0 -d);
+
+	 gl_FragColor = c; //consider using premultiply(c);
  }
 );
-
+#endif