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-rw-r--r--android/experimental/LOAndroid/app/src/main/java/org/mozilla/gecko/gfx/Layer.java207
1 files changed, 0 insertions, 207 deletions
diff --git a/android/experimental/LOAndroid/app/src/main/java/org/mozilla/gecko/gfx/Layer.java b/android/experimental/LOAndroid/app/src/main/java/org/mozilla/gecko/gfx/Layer.java
deleted file mode 100644
index cae7377d7a29..000000000000
--- a/android/experimental/LOAndroid/app/src/main/java/org/mozilla/gecko/gfx/Layer.java
+++ /dev/null
@@ -1,207 +0,0 @@
-/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-package org.mozilla.gecko.gfx;
-
-import org.mozilla.gecko.util.FloatUtils;
-
-import android.graphics.PointF;
-import android.graphics.Rect;
-import android.graphics.RectF;
-
-import java.nio.FloatBuffer;
-import java.util.concurrent.locks.ReentrantLock;
-
-public abstract class Layer {
- private final ReentrantLock mTransactionLock;
- private boolean mInTransaction;
- private Rect mNewPosition;
- private float mNewResolution;
-
- protected Rect mPosition;
- protected float mResolution;
-
- public Layer() {
- this(null);
- }
-
- public Layer(IntSize size) {
- mTransactionLock = new ReentrantLock();
- if (size == null) {
- mPosition = new Rect();
- } else {
- mPosition = new Rect(0, 0, size.width, size.height);
- }
- mResolution = 1.0f;
- }
-
- /**
- * Updates the layer. This returns false if there is still work to be done
- * after this update.
- */
- public final boolean update(RenderContext context) {
- if (mTransactionLock.isHeldByCurrentThread()) {
- throw new RuntimeException("draw() called while transaction lock held by this " +
- "thread?!");
- }
-
- if (mTransactionLock.tryLock()) {
- try {
- performUpdates(context);
- return true;
- } finally {
- mTransactionLock.unlock();
- }
- }
-
- return false;
- }
-
- /** Subclasses override this function to draw the layer. */
- public abstract void draw(RenderContext context);
-
- /** Given the intrinsic size of the layer, returns the pixel boundaries of the layer rect. */
- protected RectF getBounds(RenderContext context) {
- return RectUtils.scale(new RectF(mPosition), context.zoomFactor / mResolution);
- }
-
- /**
- * Call this before modifying the layer. Note that, for TileLayers, "modifying the layer"
- * includes altering the underlying CairoImage in any way. Thus you must call this function
- * before modifying the byte buffer associated with this layer.
- *
- * This function may block, so you should never call this on the main UI thread.
- */
- public void beginTransaction() {
- if (mTransactionLock.isHeldByCurrentThread())
- throw new RuntimeException("Nested transactions are not supported");
- mTransactionLock.lock();
- mInTransaction = true;
- mNewResolution = mResolution;
- }
-
- /** Call this when you're done modifying the layer. */
- public void endTransaction() {
- if (!mInTransaction)
- throw new RuntimeException("endTransaction() called outside a transaction");
- mInTransaction = false;
- mTransactionLock.unlock();
- }
-
- /** Returns true if the layer is currently in a transaction and false otherwise. */
- protected boolean inTransaction() {
- return mInTransaction;
- }
-
- /** Returns the current layer position. */
- public Rect getPosition() {
- return mPosition;
- }
-
- /** Sets the position. Only valid inside a transaction. */
- public void setPosition(Rect newPosition) {
- if (!mInTransaction)
- throw new RuntimeException("setPosition() is only valid inside a transaction");
- mNewPosition = newPosition;
- }
-
- /** Returns the current layer's resolution. */
- public float getResolution() {
- return mResolution;
- }
-
- /**
- * Sets the layer resolution. This value is used to determine how many pixels per
- * device pixel this layer was rendered at. This will be reflected by scaling by
- * the reciprocal of the resolution in the layer's transform() function.
- * Only valid inside a transaction. */
- public void setResolution(float newResolution) {
- if (!mInTransaction)
- throw new RuntimeException("setResolution() is only valid inside a transaction");
- mNewResolution = newResolution;
- }
-
- /**
- * Subclasses may override this method to perform custom layer updates. This will be called
- * with the transaction lock held. Subclass implementations of this method must call the
- * superclass implementation. Returns false if there is still work to be done after this
- * update is complete.
- */
- protected void performUpdates(RenderContext context) {
- if (mNewPosition != null) {
- mPosition = mNewPosition;
- mNewPosition = null;
- }
- if (mNewResolution != 0.0f) {
- mResolution = mNewResolution;
- mNewResolution = 0.0f;
- }
- }
-
- /**
- * This function fills in the provided <tt>dest</tt> array with values to render a texture.
- * The array is filled with 4 sets of {x, y, z, texture_x, texture_y} values (so 20 values
- * in total) corresponding to the corners of the rect.
- */
- protected final void fillRectCoordBuffer(float[] dest, RectF rect, float viewWidth, float viewHeight,
- Rect cropRect, float texWidth, float texHeight) {
- //x, y, z, texture_x, texture_y
- dest[0] = rect.left / viewWidth;
- dest[1] = rect.bottom / viewHeight;
- dest[2] = 0;
- dest[3] = cropRect.left / texWidth;
- dest[4] = cropRect.top / texHeight;
-
- dest[5] = rect.left / viewWidth;
- dest[6] = rect.top / viewHeight;
- dest[7] = 0;
- dest[8] = cropRect.left / texWidth;
- dest[9] = cropRect.bottom / texHeight;
-
- dest[10] = rect.right / viewWidth;
- dest[11] = rect.bottom / viewHeight;
- dest[12] = 0;
- dest[13] = cropRect.right / texWidth;
- dest[14] = cropRect.top / texHeight;
-
- dest[15] = rect.right / viewWidth;
- dest[16] = rect.top / viewHeight;
- dest[17] = 0;
- dest[18] = cropRect.right / texWidth;
- dest[19] = cropRect.bottom / texHeight;
- }
-
- public static class RenderContext {
- public final RectF viewport;
- public final RectF pageRect;
- public final float zoomFactor;
- public final PointF offset;
- public final int positionHandle;
- public final int textureHandle;
- public final FloatBuffer coordBuffer;
-
- public RenderContext(RectF aViewport, RectF aPageRect, float aZoomFactor, PointF aOffset,
- int aPositionHandle, int aTextureHandle, FloatBuffer aCoordBuffer) {
- viewport = aViewport;
- pageRect = aPageRect;
- zoomFactor = aZoomFactor;
- offset = aOffset;
- positionHandle = aPositionHandle;
- textureHandle = aTextureHandle;
- coordBuffer = aCoordBuffer;
- }
-
- public boolean fuzzyEquals(RenderContext other) {
- if (other == null) {
- return false;
- }
- return RectUtils.fuzzyEquals(viewport, other.viewport)
- && RectUtils.fuzzyEquals(pageRect, other.pageRect)
- && FloatUtils.fuzzyEquals(zoomFactor, other.zoomFactor)
- && FloatUtils.fuzzyEquals(offset, other.offset);
- }
- }
-}
-