jni: Expose interfaces for setting gamma and inverting pixmaps.

1 files changed, 28 insertions, 0 deletions

diff --git a/platform/java/mupdf_native.c b/platform/java/mupdf_native.c
index 8af0b8a4..8d811afe 100644
--- a/platform/java/mupdf_native.c
+++ b/platform/java/mupdf_native.c
@@ -3816,6 +3816,34 @@ FUN(Pixmap_getYResolution)(JNIEnv *env, jobject self)
 	return pixmap ? pixmap->yres : 0;
 }
 
+JNIEXPORT void JNICALL
+FUN(Pixmap_invert)(JNIEnv *env, jobject self)
+{
+	fz_context *ctx = get_context(env);
+	fz_pixmap *pixmap = from_Pixmap(env, self);
+
+	if (!ctx || !pixmap) return;
+
+	fz_try(ctx)
+		fz_invert_pixmap(ctx, pixmap);
+	fz_catch(ctx)
+		jni_rethrow(env, ctx);
+}
+
+JNIEXPORT void JNICALL
+FUN(Pixmap_gamma)(JNIEnv *env, jobject self, jfloat gamma)
+{
+	fz_context *ctx = get_context(env);
+	fz_pixmap *pixmap = from_Pixmap(env, self);
+
+	if (!ctx || !pixmap) return;
+
+	fz_try(ctx)
+		fz_gamma_pixmap(ctx, pixmap, gamma);
+	fz_catch(ctx)
+		jni_rethrow(env, ctx);
+}
+
 /* Path Interface */
 
 JNIEXPORT void JNICALL