Add contrast & brightness filters

Added hue fixed contrast
Stablized Contrast, Saturation, Tint, Exposure

bug:7234321
Change-Id: Iadd1e3ab215b60f920b718fa56611a07f24effee

1 files changed, 29 insertions, 0 deletions

diff --git a/src/com/android/gallery3d/filtershow/filters/ImageFilterHue.java b/src/com/android/gallery3d/filtershow/filters/ImageFilterHue.java
new file mode 100644
index 000000000..154ae2941
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/filters/ImageFilterHue.java
@@ -0,0 +1,29 @@
+
+package com.android.gallery3d.filtershow.filters;
+
+import android.graphics.Bitmap;
+
+public class ImageFilterHue extends ImageFilter {
+    private ColorSpaceMatrix cmatrix = new ColorSpaceMatrix();
+
+    public String name() {
+        return "Hue";
+    }
+
+    public ImageFilter copy() {
+        return new ImageFilterHue();
+    }
+
+    native protected void nativeApplyFilter(Bitmap bitmap, int w, int h, float []matrix);
+
+    public void apply(Bitmap bitmap) {
+        int w = bitmap.getWidth();
+        int h = bitmap.getHeight();
+        float p = mParameter;
+        float value = p;
+        cmatrix.identity();
+        cmatrix.setHue(value);
+
+        nativeApplyFilter(bitmap, w, h, cmatrix.getMatrix());
+    }
+}