Add gl file

2016-02-07 23:19:52 +08:00
1 parent 76812c26f4
commit 2897a2fe12
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2015 Hippo Seven
+ *
+ * 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.
+ */
+
+package com.hippo.gl.image;
+
+public class AnimatedImage extends Image {
+
+    private boolean mDecoded;
+    private int mCurrentFrame;
+
+    private boolean mDirty = false;
+
+    protected AnimatedImage(long nativeImage, int format, int width, int height) {
+        super(nativeImage, format, width, height);
+        mCurrentFrame = 0;
+    }
+
+    protected void checkDecoded() {
+        if (!mDecoded) {
+            throw new IllegalStateException("Call decode() first!");
+        }
+    }
+
+    public boolean isDecoded() {
+        checkRecycled();
+
+        return mDecoded;
+    }
+
+    public boolean decode() {
+        checkRecycled();
+
+        if (mDecoded) {
+            return true;
+        }
+        if (mNativeImage != 0) {
+            boolean result = nativeDecode(mNativeImage, mFormat);
+            mDecoded = true;
+            return result;
+        } else {
+            return false;
+        }
+    }
+
+    public boolean isAnimated() {
+        checkRecycled();
+        checkDecoded();
+
+        return getFrameCount() != 1;
+    }
+
+    public int getFrameCount() {
+        checkRecycled();
+        checkDecoded();
+
+        return nativeGetFrameCount(mNativeImage, mFormat);
+    }
+
+    public int getCurrentFrame() {
+        checkRecycled();
+        checkDecoded();
+
+        return mCurrentFrame;
+    }
+
+    public void setCurrentFrame(int frame) {
+        checkRecycled();
+        checkDecoded();
+
+        int frameCount = getFrameCount();
+        if (frame < 0 || frame >= frameCount) {
+            throw new IndexOutOfBoundsException("Invalid frame " + frame + ", frame count is " + frameCount);
+        }
+        mCurrentFrame = frame;
+        if (mNativeImage != 0) {
+            nativeSetCurrentFrame(mNativeImage, mFormat, frame);
+            mDirty = true;
+        }
+    }
+
+    public void advance() {
+        setCurrentFrame((mCurrentFrame + 1) % getFrameCount());
+    }
+
+    public int getCurrentDelay() {
+        return getDelay(mCurrentFrame);
+    }
+
+    public int getDelay(int frame) {
+        checkRecycled();
+        checkDecoded();
+
+        int frameCount = getFrameCount();
+        if (frame < 0 || frame >= frameCount) {
+            throw new IndexOutOfBoundsException("Invalid frame " + frame + ", frame count is " + frameCount);
+        }
+        return nativeGetDelay(mNativeImage, mFormat, frame);
+    }
+
+    @Override
+    public void recycle() {
+        super.recycle();
+    }
+
+    private static native boolean nativeDecode(long nativeImage, int format);
+    private static native int nativeGetFrameCount(long nativeImage, int format);
+    private static native void nativeSetCurrentFrame(long nativeImage, int format, int frame);
+    private static native int nativeGetDelay(long nativeImage, int format, int frame);
+}