Add API to enable mipmaps on Bitmap

Bug #7353771

This API can be used when scaling large images down to a small size
to get nicer looking results.

Change-Id: If09087eed36077eee5355f6047a3ca67747d7d9e

1 files changed, 12 insertions, 1 deletions

diff --git a/core/jni/android/graphics/Bitmap.cpp b/core/jni/android/graphics/Bitmap.cpp
index fd7a6a7..f485e03 100644
--- a/core/jni/android/graphics/Bitmap.cpp
+++ b/core/jni/android/graphics/Bitmap.cpp
@@ -7,7 +7,7 @@
 #include "SkUnPreMultiply.h"

 

 #include <binder/Parcel.h>

-#include "android_os_Parcel.h"
+#include "android_os_Parcel.h"

 #include "android_util_Binder.h"

 #include "android_nio_utils.h"

 #include "CreateJavaOutputStreamAdaptor.h"

@@ -353,6 +353,15 @@ static void Bitmap_setHasAlpha(JNIEnv* env, jobject, SkBitmap* bitmap,
     bitmap->setIsOpaque(!hasAlpha);

 }

 

+static jboolean Bitmap_hasMipMap(JNIEnv* env, jobject, SkBitmap* bitmap) {

+    return bitmap->hasHardwareMipMap();

+}

+

+static void Bitmap_setHasMipMap(JNIEnv* env, jobject, SkBitmap* bitmap,

+                                jboolean hasMipMap) {

+    bitmap->setHasHardwareMipMap(hasMipMap);

+}

+

 ///////////////////////////////////////////////////////////////////////////////

 

 static jobject Bitmap_createFromParcel(JNIEnv* env, jobject, jobject parcel) {

@@ -666,6 +675,8 @@ static JNINativeMethod gBitmapMethods[] = {
     {   "nativeConfig",             "(I)I", (void*)Bitmap_config },

     {   "nativeHasAlpha",           "(I)Z", (void*)Bitmap_hasAlpha },

     {   "nativeSetHasAlpha",        "(IZ)V", (void*)Bitmap_setHasAlpha },

+    {   "nativeHasMipMap",          "(I)Z", (void*)Bitmap_hasMipMap },

+    {   "nativeSetHasMipMap",       "(IZ)V", (void*)Bitmap_setHasMipMap },

     {   "nativeCreateFromParcel",

         "(Landroid/os/Parcel;)Landroid/graphics/Bitmap;",

         (void*)Bitmap_createFromParcel },