From 53cd3dd1a139d495fe25d06d439bd8fd0ea1d683 Mon Sep 17 00:00:00 2001
From: Jack Yoo <jyoo@codeaurora.org>
Date: Tue, 10 May 2016 14:11:19 -0700
Subject: SnapdragonCamera: Sharpshooter post filter

Adding Sharpshooter post process filter

Change-Id: I8f3c1962db437e7dfbe2973f806a3f9a26480eb7
CRs-Fixed: 1023183
---
 rs/YuvToRgb.rs |  6 +++---
 rs/rotator.rs  | 24 ++++++++++++++++++++----
 2 files changed, 23 insertions(+), 7 deletions(-)

(limited to 'rs')

diff --git a/rs/YuvToRgb.rs b/rs/YuvToRgb.rs
index 25771c5c7..57076e979 100644
--- a/rs/YuvToRgb.rs
+++ b/rs/YuvToRgb.rs
@@ -41,9 +41,9 @@ uchar4 __attribute__((kernel)) nv21ToRgb(uint32_t x, uint32_t y) {
     int vV = (int)(rsGetElementAt_uchar(gIn, index) & 0xFF ) -128;
     int uV = (int)(rsGetElementAt_uchar(gIn, index+1) & 0xFF ) -128;
 
-    int r = (int) (1.164f * yV  + 1.596f * vV );
-    int g = (int) (1.164f * yV  - 0.813f * vV  - 0.391f * uV);
-    int b = (int) (1.164f * yV  + 2.018f * uV );
+    int r = (int) (yV  + 1.370705f * vV );
+    int g = (int) (yV  - 0.698001f * vV  - 0.337633f* uV);
+    int b = (int) (yV  + 1.732446 * uV );
 
     r = r>255? 255 : r<0 ? 0 : r;
     g = g>255? 255 : g<0 ? 0 : g;
diff --git a/rs/rotator.rs b/rs/rotator.rs
index cd9da4396..5a27e00f7 100644
--- a/rs/rotator.rs
+++ b/rs/rotator.rs
@@ -34,18 +34,34 @@ rs_allocation gOut;
 rs_allocation gIn;
 uint32_t width;
 uint32_t height;
+uint32_t pad;
+bool gFlip;
 
 uchar __attribute__((kernel)) rotate90andMerge(uint32_t x, uint32_t y) {
     uchar yValue = rsGetElementAt_uchar(gIn, x + y*width);
-    rsSetElementAt_uchar(gOut, yValue, x*height + height - 1 - y);
 
-    if(x%2 == 0 && y%2==1) {
+    if(gFlip) {
+        if(x >= width - pad)
+            return (uchar)0;
+        rsSetElementAt_uchar(gOut, yValue, (width-1-x-pad)*height + height - 1 - y);
+    } else {
+        rsSetElementAt_uchar(gOut, yValue, x*height + height - 1 - y);
+    }
+
+    if(x%2 == 0 && y%2 == 0) {
         uint32_t ySize = width*height;
         uint32_t index = ySize + x + ((y/2) * width);
         uchar vValue = rsGetElementAt_uchar(gIn, index);
         uchar uValue = rsGetElementAt_uchar(gIn, index + 1);
-        rsSetElementAt_uchar(gOut, vValue, ySize + x/2*height + height - 1 - y);
-        rsSetElementAt_uchar(gOut, uValue, ySize + x/2*height + height - 1 - y - 1);
+        if(gFlip) {
+            if(x >= width - pad)
+                return (uchar)0;
+            rsSetElementAt_uchar(gOut, uValue, ySize + (width-2-x-pad)/2*height + height - 1 - y);
+            rsSetElementAt_uchar(gOut, vValue, ySize + (width-2-x-pad)/2*height + height - 1 - y - 1);
+        } else {
+            rsSetElementAt_uchar(gOut, uValue, ySize + x/2*height + height - 1 - y);
+            rsSetElementAt_uchar(gOut, vValue, ySize + x/2*height + height - 1 - y - 1);
+        }
     }
     return (uchar)0;
 }
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