add API to change default config on image decoders. (ab4a0c16) · Commits · e / os / android_frameworks_base

core/jni/android/graphics/BitmapFactory.cpp

+19 −1

Original line number	Diff line number	Diff line
		@@ -645,6 +645,23 @@ static jbyteArray nativeScaleNinePatch(JNIEnv* env, jobject, jbyteArray chunkObj
		return chunkObject;
		}

		static void nativeSetDefaultConfig(JNIEnv* env, jobject, int nativeConfig) {
		SkBitmap::Config config = static_cast<SkBitmap::Config>(nativeConfig);

		// these are the only default configs that make sense for codecs right now
		static const SkBitmap::Config gValidDefConfig[] = {
		SkBitmap::kRGB_565_Config,
		SkBitmap::kARGB_8888_Config,
		};

		for (size_t i = 0; i < SK_ARRAY_COUNT(gValidDefConfig); i++) {
		if (config == gValidDefConfig[i]) {
		SkImageDecoder::SetDeviceConfig(config);
		break;
		}
		}
		}

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

		static JNINativeMethod gMethods[] = {
		@@ -671,8 +688,9 @@ static JNINativeMethod gMethods[] = {
		{ "nativeScaleNinePatch",
		"([BFLandroid/graphics/Rect;)[B",
		(void*)nativeScaleNinePatch
		}
		},

		{ "nativeSetDefaultConfig", "(I)V", (void*)nativeSetDefaultConfig },
		};

		static JNINativeMethod gOptionsMethods[] = {

+24 −0

Original line number	Diff line number	Diff line
		@@ -558,6 +558,30 @@ public class BitmapFactory {
		return decodeFileDescriptor(fd, null, null);
		}

		/**
		* Set the default config used for decoding bitmaps. This config is
		* presented to the codec if the caller did not specify a preferred config
		* in their call to decode...
		*
		* The default value is chosen by the system to best match the device's
		* screen and memory constraints.
		*
		* @param config The preferred config for decoding bitmaps. If null, then
		* a suitable default is chosen by the system.
		*
		* @hide - only called by the browser at the moment, but should be stable
		* enough to expose if needed
		*/
		public static void setDefaultConfig(Bitmap.Config config) {
		if (config == null) {
		// pick this for now, as historically it was our default.
		// However, if we have a smarter algorithm, we can change this.
		config = Bitmap.Config.RGB_565;
		}
		nativeSetDefaultConfig(config.nativeInt);
		}

		private static native void nativeSetDefaultConfig(int nativeConfig);
		private static native Bitmap nativeDecodeStream(InputStream is, byte[] storage,
		Rect padding, Options opts);
		private static native Bitmap nativeDecodeFileDescriptor(FileDescriptor fd,