1 files changed, 479 insertions, 0 deletions
diff --git a/src/org/cyanogenmod/wallpapers/photophase/transitions/CubeTransition.java b/src/org/cyanogenmod/wallpapers/photophase/transitions/CubeTransition.java
new file mode 100644
index 0000000..bfe300b
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+++ b/src/org/cyanogenmod/wallpapers/photophase/transitions/CubeTransition.java
@@ -0,0 +1,479 @@
+/*
+ * Copyright (C) 2013 The CyanogenMod Project
+ *
+ * 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 org.cyanogenmod.wallpapers.photophase.transitions;
+
+import android.content.Context;
+import android.opengl.GLES20;
+import android.opengl.GLException;
+import android.opengl.Matrix;
+import android.os.SystemClock;
+
+import org.cyanogenmod.wallpapers.photophase.utils.GLESUtil;
+import org.cyanogenmod.wallpapers.photophase.utils.Utils;
+import org.cyanogenmod.wallpapers.photophase.PhotoFrame;
+import org.cyanogenmod.wallpapers.photophase.R;
+import org.cyanogenmod.wallpapers.photophase.TextureManager;
+import org.cyanogenmod.wallpapers.photophase.transitions.Transitions.TRANSITIONS;
+
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.nio.FloatBuffer;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * A transition that applies a cube effect transition to the picture.
+ */
+public class CubeTransition extends Transition {
+
+    /**
+     * The enumeration of all possibles window movements
+     */
+    public enum WINDOW_MODES {
+        /**
+         * Open the picture from left to right
+         */
+        LEFT_TO_RIGHT,
+        /**
+         * Open the picture from right to left
+         */
+        RIGHT_TO_LEFT
+    }
+
+    private static final int[] VERTEX_SHADER = {R.raw.default_vertex_shader, R.raw.default_vertex_shader};
+    private static final int[] FRAGMENT_SHADER = {R.raw.default_fragment_shader, R.raw.default_fragment_shader};
+
+    private static final float TRANSITION_TIME = 1000.0f;
+
+    private static final float SCALE_AMOUNT = 0.2f;
+
+    private WINDOW_MODES mMode;
+
+    private boolean mRunning;
+    private long mTime;
+
+    private FloatBuffer mPositionBuffer;
+    private float[] mTranslationMatrix;
+    private float[] mVertex;
+
+    private float mAmount;
+
+    /**
+     * Constructor of <code>CubeTransition</code>
+     *
+     * @param ctx The current context
+     * @param tm The texture manager
+     */
+    public CubeTransition(Context ctx, TextureManager tm) {
+        super(ctx, tm, VERTEX_SHADER, FRAGMENT_SHADER);
+
+        // Initialized
+        mTranslationMatrix = new float[16];
+        reset();
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public TRANSITIONS getType() {
+        return TRANSITIONS.WINDOW;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean hasTransitionTarget() {
+        return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean isRunning() {
+        return mRunning;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void select(PhotoFrame target) {
+        super.select(target);
+        mAmount = getAmount();
+
+        // Create the interal buffer
+        float[] vertex = target.getFrameVertex();
+        if (mPositionBuffer == null) {
+            ByteBuffer bb = ByteBuffer.allocateDirect(vertex.length * 4); // (# of coordinate values * 4 bytes per float)
+            bb.order(ByteOrder.nativeOrder());
+            mPositionBuffer = bb.asFloatBuffer();
+        }
+        if (mVertex == null) {
+            mVertex = new float[vertex.length];
+        }
+
+        // Random mode
+        List<WINDOW_MODES> modes =
+                new ArrayList<CubeTransition.WINDOW_MODES>(
+                        Arrays.asList(WINDOW_MODES.values()));
+        int low = 0;
+        int high = modes.size() - 1;
+        mMode = modes.get(Utils.getNextRandom(low, high));
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public boolean isSelectable(PhotoFrame frame) {
+            return true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void reset() {
+        mTime = -1;
+        mRunning = true;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void apply(float[] matrix) throws GLException {
+        // Check internal vars
+        if (mTarget == null ||
+            mTarget.getPositionBuffer() == null ||
+            mTarget.getTextureBuffer() == null) {
+            return;
+        }
+        if (mTransitionTarget == null ||
+            mTransitionTarget.getPositionBuffer() == null ||
+            mTransitionTarget.getTextureBuffer() == null) {
+            return;
+        }
+
+        // Set the time the first time
+        if (mTime == -1) {
+            mTime = SystemClock.uptimeMillis();
+        }
+
+        // Calculate the delta time
+        final float delta = Math.min(SystemClock.uptimeMillis() - mTime, TRANSITION_TIME) / TRANSITION_TIME;
+
+        // Apply the transition
+        if (delta < 1) {
+            applyDstTransition(delta, matrix);
+            applySrcTransition(delta, matrix);
+        } else {
+            applyFinalTransition(matrix);
+        }
+
+        // Transition ending
+        if (delta == 1) {
+            mRunning = false;
+        }
+    }
+
+    /**
+     * Apply the source transition
+     *
+     * @param delta The delta time
+     * @param matrix The model-view-projection matrix
+     */
+    private void applySrcTransition(float delta, float[] matrix) {
+        // Bind default FBO
+        GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
+        GLESUtil.glesCheckError("glBindFramebuffer");
+
+        // Set the program
+        useProgram(0);
+
+        // Disable blending
+        GLES20.glDisable(GLES20.GL_BLEND);
+        GLESUtil.glesCheckError("glDisable");
+
+        // Set the input texture
+        int textureHandle = mTarget.getTextureHandle();
+        GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
+        GLESUtil.glesCheckError("glActiveTexture");
+        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureHandle);
+        GLESUtil.glesCheckError("glBindTexture");
+        GLES20.glUniform1i(mTextureHandlers[0], 0);
+        GLESUtil.glesCheckError("glBindTexture");
+
+        // Texture
+        FloatBuffer textureBuffer = mTarget.getTextureBuffer();
+        textureBuffer.position(0);
+        GLES20.glVertexAttribPointer(mTextureCoordHandlers[0], 2, GLES20.GL_FLOAT, false, 0, textureBuffer);
+        GLESUtil.glesCheckError("glVertexAttribPointer");
+        GLES20.glEnableVertexAttribArray(mTextureCoordHandlers[0]);
+        GLESUtil.glesCheckError("glEnableVertexAttribArray");
+
+        // Position
+        setInternalVertex();
+        float interpolation = delta > 0.5f
+                        ? 1 - delta
+                        : delta;
+        float w = Math.abs(mVertex[6] - mVertex[4]);
+        switch (mMode) {
+            case RIGHT_TO_LEFT:
+                mVertex[1] -= interpolation * mAmount;
+                mVertex[5] += interpolation * mAmount;
+                mVertex[4] += w * delta;
+                mVertex[0] = mVertex[4];
+                break;
+            case LEFT_TO_RIGHT:
+                mVertex[3] -= interpolation * mAmount;
+                mVertex[7] += interpolation * mAmount;
+                mVertex[6] -= w * delta;
+                mVertex[2] = mVertex[6];
+                break;
+            default:
+                break;
+        }
+        mPositionBuffer.position(0);
+        mPositionBuffer.put(mVertex);
+        mPositionBuffer.position(0);
+        GLES20.glVertexAttribPointer(mPositionHandlers[0], 2, GLES20.GL_FLOAT, false, 0, mPositionBuffer);
+        GLESUtil.glesCheckError("glVertexAttribPointer");
+        GLES20.glEnableVertexAttribArray(mPositionHandlers[0]);
+        GLESUtil.glesCheckError("glEnableVertexAttribArray");
+
+        // Calculate the delta angle and the translation and rotate parameters
+        float angle = 0.0f;
+        float translateX = 0.0f;
+        float rotateY = 0.0f;
+        switch (mMode) {
+            case RIGHT_TO_LEFT:
+                angle = delta * 90;
+                rotateY = -1.0f;
+                translateX = mVertex[2] * -1;
+                break;
+            case LEFT_TO_RIGHT:
+                angle = delta * -90;
+                rotateY = -1.0f;
+                translateX = mVertex[0] * -1;
+                break;
+
+            default:
+                break;
+        }
+
+        // Apply the projection and view transformation
+        Matrix.setIdentityM(matrix, 0);
+        Matrix.translateM(mTranslationMatrix, 0, matrix, 0, -translateX, 0.0f, 0.0f);
+        Matrix.rotateM(mTranslationMatrix, 0, mTranslationMatrix, 0, angle, 0.0f, rotateY, 0.0f);
+        Matrix.translateM(mTranslationMatrix, 0, mTranslationMatrix, 0, translateX, 0.0f, 0.0f);
+        GLES20.glUniformMatrix4fv(mMVPMatrixHandlers[0], 1, false, mTranslationMatrix, 0);
+        GLESUtil.glesCheckError("glUniformMatrix4fv");
+
+        // Draw
+        GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);
+        GLESUtil.glesCheckError("glDrawElements");
+
+        // Disable attributes
+        GLES20.glDisableVertexAttribArray(mPositionHandlers[0]);
+        GLESUtil.glesCheckError("glDisableVertexAttribArray");
+        GLES20.glDisableVertexAttribArray(mTextureCoordHandlers[0]);
+        GLESUtil.glesCheckError("glDisableVertexAttribArray");
+    }
+
+    /**
+     * Apply the destination transition
+     *
+     * @param delta The delta time
+     * @param matrix The model-view-projection matrix
+     */
+    private void applyDstTransition(float delta, float[] matrix) {
+     // Bind default FBO
+        GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
+        GLESUtil.glesCheckError("glBindFramebuffer");
+
+        // Set the program
+        useProgram(1);
+
+        // Disable blending
+        GLES20.glDisable(GLES20.GL_BLEND);
+        GLESUtil.glesCheckError("glDisable");
+
+        // Set the input texture
+        int textureHandle = mTransitionTarget.getTextureHandle();
+        GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
+        GLESUtil.glesCheckError("glActiveTexture");
+        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureHandle);
+        GLESUtil.glesCheckError("glBindTexture");
+        GLES20.glUniform1i(mTextureHandlers[1], 0);
+        GLESUtil.glesCheckError("glBindTexture");
+
+        // Texture
+        FloatBuffer textureBuffer = mTransitionTarget.getTextureBuffer();
+        textureBuffer.position(0);
+        GLES20.glVertexAttribPointer(mTextureCoordHandlers[1], 2, GLES20.GL_FLOAT, false, 0, textureBuffer);
+        GLESUtil.glesCheckError("glVertexAttribPointer");
+        GLES20.glEnableVertexAttribArray(mTextureCoordHandlers[1]);
+        GLESUtil.glesCheckError("glEnableVertexAttribArray");
+
+        // Position
+        setInternalVertex();
+        float interpolation = delta > 0.5f
+                ? 1 - delta
+                : delta;
+        float w = Math.abs(mVertex[6] - mVertex[4]);
+        switch (mMode) {
+            case LEFT_TO_RIGHT:
+                mVertex[1] -= interpolation * mAmount;
+                mVertex[5] += interpolation * mAmount;
+                mVertex[4] += w * (1 - delta);
+                mVertex[0] = mVertex[4];
+                break;
+            case RIGHT_TO_LEFT:
+                mVertex[3] -= interpolation * mAmount;
+                mVertex[7] += interpolation * mAmount;
+                mVertex[6] -= w * (1 - delta);
+                mVertex[2] = mVertex[6];
+                break;
+            default:
+                break;
+        }
+        mPositionBuffer.position(0);
+        mPositionBuffer.put(mVertex);
+        mPositionBuffer.position(0);
+        GLES20.glVertexAttribPointer(mPositionHandlers[1], 2, GLES20.GL_FLOAT, false, 0, mPositionBuffer);
+        GLESUtil.glesCheckError("glVertexAttribPointer");
+        GLES20.glEnableVertexAttribArray(mPositionHandlers[1]);
+        GLESUtil.glesCheckError("glEnableVertexAttribArray");
+
+        // Calculate the delta angle and the translation and rotate parameters
+        float angle = 0.0f;
+        float translateX = 0.0f;
+        float rotateY = 0.0f;
+        switch (mMode) {
+            case LEFT_TO_RIGHT:
+                angle = 90 - (delta * 90);
+                rotateY = -1.0f;
+                translateX = mVertex[2] * -1;
+                break;
+            case RIGHT_TO_LEFT:
+                angle = -90 + (delta * 90);
+                rotateY = -1.0f;
+                translateX = mVertex[0] * -1;
+                break;
+
+            default:
+                break;
+        }
+
+        // Apply the projection and view transformation
+        Matrix.setIdentityM(matrix, 0);
+        Matrix.translateM(mTranslationMatrix, 0, matrix, 0, -translateX, 0.0f, 0.0f);
+        Matrix.rotateM(mTranslationMatrix, 0, mTranslationMatrix, 0, angle, 0.0f, rotateY, 0.0f);
+        Matrix.translateM(mTranslationMatrix, 0, mTranslationMatrix, 0, translateX, 0.0f, 0.0f);
+        GLES20.glUniformMatrix4fv(mMVPMatrixHandlers[1], 1, false, mTranslationMatrix, 0);
+        GLESUtil.glesCheckError("glUniformMatrix4fv");
+
+        // Draw
+        GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);
+        GLESUtil.glesCheckError("glDrawElements");
+
+        // Disable attributes
+        GLES20.glDisableVertexAttribArray(mPositionHandlers[1]);
+        GLESUtil.glesCheckError("glDisableVertexAttribArray");
+        GLES20.glDisableVertexAttribArray(mTextureCoordHandlers[1]);
+        GLESUtil.glesCheckError("glDisableVertexAttribArray");
+    }
+
+    /**
+     * Apply the destination transition (just draw the image)
+     *
+     * @param matrix The model-view-projection matrix
+     */
+    private void applyFinalTransition(float[] matrix) {
+        // Bind default FBO
+        GLES20.glBindFramebuffer(GLES20.GL_FRAMEBUFFER, 0);
+        GLESUtil.glesCheckError("glBindFramebuffer");
+
+        // Use our shader program
+        useProgram(1);
+
+        // Disable blending
+        GLES20.glDisable(GLES20.GL_BLEND);
+        GLESUtil.glesCheckError("glDisable");
+
+        // Apply the projection and view transformation
+        GLES20.glUniformMatrix4fv(mMVPMatrixHandlers[1], 1, false, matrix, 0);
+        GLESUtil.glesCheckError("glUniformMatrix4fv");
+
+        // Texture
+        FloatBuffer textureBuffer = mTransitionTarget.getTextureBuffer();
+        textureBuffer.position(0);
+        GLES20.glVertexAttribPointer(mTextureCoordHandlers[1], 2, GLES20.GL_FLOAT, false, 0, textureBuffer);
+        GLESUtil.glesCheckError("glVertexAttribPointer");
+        GLES20.glEnableVertexAttribArray(mTextureCoordHandlers[1]);
+        GLESUtil.glesCheckError("glEnableVertexAttribArray");
+
+        // Position
+        FloatBuffer positionBuffer = mTransitionTarget.getPositionBuffer();
+        positionBuffer.position(0);
+        GLES20.glVertexAttribPointer(mPositionHandlers[1], 2, GLES20.GL_FLOAT, false, 0, positionBuffer);
+        GLESUtil.glesCheckError("glVertexAttribPointer");
+        GLES20.glEnableVertexAttribArray(mPositionHandlers[1]);
+        GLESUtil.glesCheckError("glEnableVertexAttribArray");
+
+        // Set the input texture
+        int textureHandle = mTransitionTarget.getTextureHandle();
+        GLES20.glActiveTexture(GLES20.GL_TEXTURE0);
+        GLESUtil.glesCheckError("glActiveTexture");
+        GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, textureHandle);
+        GLESUtil.glesCheckError("glBindTexture");
+        GLES20.glUniform1i(mTextureHandlers[1], 0);
+        GLESUtil.glesCheckError("glUniform1i");
+
+        // Draw
+        GLES20.glDrawArrays(GLES20.GL_TRIANGLE_STRIP, 0, 4);
+        GLESUtil.glesCheckError("glDrawElements");
+
+        // Disable attributes
+        GLES20.glDisableVertexAttribArray(mPositionHandlers[1]);
+        GLESUtil.glesCheckError("glDisableVertexAttribArray");
+        GLES20.glDisableVertexAttribArray(mTextureCoordHandlers[1]);
+        GLESUtil.glesCheckError("glDisableVertexAttribArray");
+    }
+
+    /**
+     * Method that prepares the internal vertex array
+     */
+    private void setInternalVertex() {
+        float[] originalVertex = mTarget.getFrameVertex();
+        System.arraycopy(originalVertex, 0, mVertex, 0, originalVertex.length);
+    }
+
+    /**
+     * Return the scale amount to apply to the transition
+     *
+     * @return float The scale amount
+     */
+    private float getAmount() {
+        return ((mTarget.getFrameWidth() * SCALE_AMOUNT) / 2);
+    }
+}