diff options
Diffstat (limited to 'jni/filters/highlight.c')
-rw-r--r-- | jni/filters/highlight.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/jni/filters/highlight.c b/jni/filters/highlight.c new file mode 100644 index 000000000..fe9b88f94 --- /dev/null +++ b/jni/filters/highlight.c @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2013 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(ImageFilterHighlights, nativeApplyFilter, jobject bitmap, + jint width, jint height, jfloatArray luminanceMap){ + char* destination = 0; + AndroidBitmap_lockPixels(env, bitmap, (void**) &destination); + unsigned char * rgb = (unsigned char * )destination; + int i; + int len = width * height * 4; + jfloat* lum = (*env)->GetFloatArrayElements(env, luminanceMap,0); + unsigned short * hsv = (unsigned short *)malloc(3*sizeof(short)); + + for (i = 0; i < len; i+=4) + { + rgb2hsv(rgb,i,hsv,0); + int v = clampMax(hsv[0],4080); + hsv[0] = (unsigned short) clampMax(lum[((255*v)/4080)]*4080,4080); + hsv2rgb(hsv,0, rgb,i); + } + + free(hsv); + AndroidBitmap_unlockPixels(env, bitmap); +} |