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| author | John Hoford <hoford@google.com> | 2013-02-20 17:50:42 -0800 |
|---|---|---|
| committer | John Hoford <hoford@google.com> | 2013-02-21 11:24:47 -0800 |
| commit | 8921c28c7333ad2b4d34f013904ad4737044f366 (patch) | |
| tree | 6fd8a763bae0fd3c72ff78a1fc46a3b9e1451db6 /jni/filters/contrast.c | |
| parent | 91b80b2560e663b15ee75ab1bca775028c7868c0 (diff) | |
| download | android_packages_apps_Gallery2-8921c28c7333ad2b4d34f013904ad4737044f366.tar.gz android_packages_apps_Gallery2-8921c28c7333ad2b4d34f013904ad4737044f366.tar.bz2 android_packages_apps_Gallery2-8921c28c7333ad2b4d34f013904ad4737044f366.zip | |
add highlight filter
Change-Id: I2e59e09fbc80172b9dfe27b3ce8ff2f1e24c5872
Diffstat (limited to 'jni/filters/contrast.c')
| -rw-r--r-- | jni/filters/contrast.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/jni/filters/contrast.c b/jni/filters/contrast.c index 6c1b976cf..b04e9364e 100644 --- a/jni/filters/contrast.c +++ b/jni/filters/contrast.c @@ -27,6 +27,15 @@ unsigned char clamp(int c) 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; |