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-rw-r--r--jni/filters/contrast.c56
1 files changed, 0 insertions, 56 deletions
diff --git a/jni/filters/contrast.c b/jni/filters/contrast.c
deleted file mode 100644
index b04e9364e..000000000
--- a/jni/filters/contrast.c
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Copyright (C) 2012 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <math.h>
-#include "filters.h"
-
-unsigned char clamp(int c)
-{
- int N = 255;
- c &= ~(c >> 31);
- c -= N;
- c &= (c >> 31);
- c += N;
- return (unsigned char) c;
-}
-
-int clampMax(int c,int max)
-{
- c &= ~(c >> 31);
- c -= max;
- c &= (c >> 31);
- c += max;
- return c;
-}
-
-void JNIFUNCF(ImageFilterContrast, nativeApplyFilter, jobject bitmap, jint width, jint height, jfloat bright)
-{
- char* destination = 0;
- AndroidBitmap_lockPixels(env, bitmap, (void**) &destination);
- unsigned char * rgb = (unsigned char * )destination;
- int i;
- int len = width * height * 4;
- float m = (float)pow(2, bright/100.);
- float c = 127-m*127;
-
- for (i = 0; i < len; i+=4) {
- rgb[RED] = clamp((int)(m*rgb[RED]+c));
- rgb[GREEN] = clamp((int)(m*rgb[GREEN]+c));
- rgb[BLUE] = clamp((int)(m*rgb[BLUE]+c));
- }
- AndroidBitmap_unlockPixels(env, bitmap);
-}
-