diff options
Diffstat (limited to 'jni/filters/vibrance.c')
-rw-r--r-- | jni/filters/vibrance.c | 62 |
1 files changed, 0 insertions, 62 deletions
diff --git a/jni/filters/vibrance.c b/jni/filters/vibrance.c deleted file mode 100644 index cb5c536e5..000000000 --- a/jni/filters/vibrance.c +++ /dev/null @@ -1,62 +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" - -void JNIFUNCF(ImageFilterVibrance, nativeApplyFilter, jobject bitmap, jint width, jint height, jfloat vibrance) -{ - char* destination = 0; - AndroidBitmap_lockPixels(env, bitmap, (void**) &destination); - int i; - int len = width * height * 4; - float Rf = 0.2999f; - float Gf = 0.587f; - float Bf = 0.114f; - float Vib = vibrance/100.f; - float S = Vib+1; - float MS = 1.0f - S; - float Rt = Rf * MS; - float Gt = Gf * MS; - float Bt = Bf * MS; - float R, G, B; - for (i = 0; i < len; i+=4) - { - int r = destination[RED]; - int g = destination[GREEN]; - int b = destination[BLUE]; - float red = (r-MAX(g, b))/256.f; - float sx = (float)(Vib/(1+exp(-red*3))); - S = sx+1; - MS = 1.0f - S; - Rt = Rf * MS; - Gt = Gf * MS; - Bt = Bf * MS; - int t = (r + g) / 2; - R = r; - G = g; - B = b; - - float Rc = R * (Rt + S) + G * Gt + B * Bt; - float Gc = R * Rt + G * (Gt + S) + B * Bt; - float Bc = R * Rt + G * Gt + B * (Bt + S); - - destination[RED] = CLAMP(Rc); - destination[GREEN] = CLAMP(Gc); - destination[BLUE] = CLAMP(Bc); - } - AndroidBitmap_unlockPixels(env, bitmap); -} |