LayoutLib: improve bitmap support. (b1da1afa) · Commits · e / os / android_frameworks_base

tools/layoutlib/bridge/src/android/graphics/Bitmap_Delegate.java

+194 −25

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		package android.graphics;

		import com.android.ide.common.rendering.api.ResourceDensity;
		import com.android.layoutlib.bridge.Bridge;
		import com.android.layoutlib.bridge.impl.DelegateManager;

		import android.graphics.Bitmap.Config;
		@@ -29,6 +30,7 @@ import java.io.IOException;
		import java.io.InputStream;
		import java.io.OutputStream;
		import java.nio.Buffer;
		import java.util.Arrays;

		import javax.imageio.ImageIO;

		@@ -57,6 +59,7 @@ public final class Bitmap_Delegate {
		private final Config mConfig;
		private BufferedImage mImage;
		private boolean mHasAlpha = true;
		private int mGenerationId = 0;


		// ---- Public Helper methods ----
		@@ -173,6 +176,22 @@ public final class Bitmap_Delegate {
		return mConfig;
		}

		/**
		* Returns the hasAlpha rendering hint
		* @return true if the bitmap alpha should be used at render time
		*/
		public boolean hasAlpha() {
		return mHasAlpha && mConfig != Config.RGB_565;
		}

		/**
		* Update the generationId.
		*
		* @see Bitmap#getGenerationId()
		*/
		public void change() {
		mGenerationId++;
		}

		// ---- native methods ----

		@@ -183,7 +202,9 @@ public final class Bitmap_Delegate {
		// create the image
		BufferedImage image = new BufferedImage(width, height, imageType);

		// FIXME fill the bitmap!
		if (colors != null) {
		image.setRGB(0, 0, width, height, colors, offset, stride);
		}

		// create a delegate with the content of the stream.
		Bitmap_Delegate delegate = new Bitmap_Delegate(image, Config.sConfigs[nativeConfig]);
		@@ -192,8 +213,31 @@ public final class Bitmap_Delegate {
		}

		/package/ static Bitmap nativeCopy(int srcBitmap, int nativeConfig, boolean isMutable) {
		// FIXME implement native delegate
		throw new UnsupportedOperationException("Native delegate needed for Bitmap");
		Bitmap_Delegate srcBmpDelegate = sManager.getDelegate(srcBitmap);
		if (srcBmpDelegate == null) {
		assert false;
		return null;
		}

		BufferedImage srcImage = srcBmpDelegate.getImage();

		int width = srcImage.getWidth();
		int height = srcImage.getHeight();

		int imageType = getBufferedImageType(nativeConfig);

		// create the image
		BufferedImage image = new BufferedImage(width, height, imageType);

		// copy the source image into the image.
		int[] argb = new int[width * height];
		srcImage.getRGB(0, 0, width, height, argb, 0, width);
		image.setRGB(0, 0, width, height, argb, 0, width);

		// create a delegate with the content of the stream.
		Bitmap_Delegate delegate = new Bitmap_Delegate(image, Config.sConfigs[nativeConfig]);

		return createBitmap(delegate, isMutable, Bitmap.getDefaultDensity());
		}

		/package/ static void nativeDestructor(int nativeBitmap) {
		@@ -206,8 +250,8 @@ public final class Bitmap_Delegate {

		/package/ static boolean nativeCompress(int nativeBitmap, int format, int quality,
		OutputStream stream, byte[] tempStorage) {
		// FIXME implement native delegate
		throw new UnsupportedOperationException("Native delegate needed for Bitmap");
		Bridge.getLog().error(null, "Bitmap.compress() is not supported");
		return true;
		}

		/package/ static void nativeErase(int nativeBitmap, int color) {
		@@ -222,7 +266,7 @@ public final class Bitmap_Delegate {

		Graphics2D g = image.createGraphics();
		try {
		g.setColor(new java.awt.Color(color, delegate.mHasAlpha));
		g.setColor(new java.awt.Color(color, true));

		g.fillRect(0, 0, image.getWidth(), image.getHeight());
		} finally {
		@@ -298,20 +342,35 @@ public final class Bitmap_Delegate {

		/package/ static void nativeGetPixels(int nativeBitmap, int[] pixels, int offset,
		int stride, int x, int y, int width, int height) {
		// FIXME implement native delegate
		throw new UnsupportedOperationException("Native delegate needed for Bitmap.nativeGetPixels");
		Bitmap_Delegate delegate = sManager.getDelegate(nativeBitmap);
		if (delegate == null) {
		assert false;
		return;
		}

		delegate.getImage().getRGB(x, y, width, height, pixels, offset, stride);
		}


		/package/ static void nativeSetPixel(int nativeBitmap, int x, int y, int color) {
		// FIXME implement native delegate
		throw new UnsupportedOperationException("Native delegate needed for Bitmap.nativeSetPixel");
		Bitmap_Delegate delegate = sManager.getDelegate(nativeBitmap);
		if (delegate == null) {
		assert false;
		return;
		}

		delegate.getImage().setRGB(x, y, color);
		}

		/package/ static void nativeSetPixels(int nativeBitmap, int[] colors, int offset,
		int stride, int x, int y, int width, int height) {
		// FIXME implement native delegate
		throw new UnsupportedOperationException("Native delegate needed for Bitmap.nativeSetPixels");
		Bitmap_Delegate delegate = sManager.getDelegate(nativeBitmap);
		if (delegate == null) {
		assert false;
		return;
		}

		delegate.getImage().setRGB(x, y, width, height, colors, offset, stride);
		}

		/package/ static void nativeCopyPixelsToBuffer(int nativeBitmap, Buffer dst) {
		@@ -325,31 +384,68 @@ public final class Bitmap_Delegate {
		}

		/package/ static int nativeGenerationId(int nativeBitmap) {
		// FIXME implement native delegate
		throw new UnsupportedOperationException("Native delegate needed for Bitmap.nativeGenerationId");
		Bitmap_Delegate delegate = sManager.getDelegate(nativeBitmap);
		if (delegate == null) {
		assert false;
		return 0;
		}

		return delegate.mGenerationId;
		}

		/package/ static Bitmap nativeCreateFromParcel(Parcel p) {
		// FIXME implement native delegate
		throw new UnsupportedOperationException("Native delegate needed for Bitmap.nativeCreateFromParcel");
		// This is only called by Bitmap.CREATOR (Parcelable.Creator<Bitmap>), which is only
		// used during aidl call so really this should not be called.
		Bridge.getLog().error(null,
		"AIDL is not suppored, and therefore bitmap cannot be created from parcels");
		return null;
		}

		/package/ static boolean nativeWriteToParcel(int nativeBitmap, boolean isMutable,
		int density, Parcel p) {
		// FIXME implement native delegate
		throw new UnsupportedOperationException("Native delegate needed for Bitmap.nativeWriteToParcel");
		// This is only called when sending a bitmap through aidl, so really this should not
		// be called.
		Bridge.getLog().error(null,
		"AIDL is not suppored, and therefore bitmap cannot be written to parcels");
		return false;
		}

		/package/ static Bitmap nativeExtractAlpha(int nativeBitmap, int nativePaint,
		int[] offsetXY) {
		// FIXME implement native delegate
		throw new UnsupportedOperationException("Native delegate needed for Bitmap.nativeExtractAlpha");
		Bitmap_Delegate bitmap = sManager.getDelegate(nativeBitmap);
		if (bitmap == null) {
		assert false;
		return null;
		}

		Paint_Delegate paint = null;
		if (nativePaint > 0) {
		paint = Paint_Delegate.getDelegate(nativePaint);
		if (paint == null) {
		assert false;
		return null;
		}
		}

		if (paint != null && paint.getMaskFilter() != 0) {
		Bridge.getLog().fidelityWarning(null,
		"MaskFilter not supported in Bitmap.extractAlpha",
		null);
		}

		int alpha = paint != null ? paint.getAlpha() : 0xFF;
		BufferedImage image = createCopy(bitmap.getImage(), BufferedImage.TYPE_INT_ARGB, alpha);

		// create the delegate. The actual Bitmap config is only an alpha channel
		Bitmap_Delegate delegate = new Bitmap_Delegate(image, Config.ALPHA_8);

		// the density doesn't matter, it's set by the Java method.
		return createBitmap(delegate, false /isMutable/,
		ResourceDensity.DEFAULT_DENSITY /density/);
		}

		/package/ static void nativePrepareToDraw(int nativeBitmap) {
		// FIXME implement native delegate
		throw new UnsupportedOperationException("Native delegate needed for Bitmap.nativePrepareToDraw");
		// nothing to be done here.
		}

		/package/ static void nativeSetHasAlpha(int nativeBitmap, boolean hasAlpha) {
		@@ -364,8 +460,48 @@ public final class Bitmap_Delegate {
		}

		/package/ static boolean nativeSameAs(int nb0, int nb1) {
		// FIXME implement native delegate
		throw new UnsupportedOperationException("Native delegate needed for Bitmap.nativeSameAs");
		Bitmap_Delegate delegate1 = sManager.getDelegate(nb0);
		if (delegate1 == null) {
		assert false;
		return false;
		}

		Bitmap_Delegate delegate2 = sManager.getDelegate(nb1);
		if (delegate2 == null) {
		assert false;
		return false;
		}

		BufferedImage image1 = delegate1.getImage();
		BufferedImage image2 = delegate2.getImage();
		if (delegate1.mConfig != delegate2.mConfig \|\|
		image1.getWidth() != image2.getWidth() \|\|
		image1.getHeight() != image2.getHeight()) {
		return false;
		}

		// get the internal data
		int w = image1.getWidth();
		int h = image2.getHeight();
		int[] argb1 = new int[w*h];
		int[] argb2 = new int[w*h];

		image1.getRGB(0, 0, w, h, argb1, 0, w);
		image2.getRGB(0, 0, w, h, argb2, 0, w);

		// compares
		if (delegate1.mConfig == Config.ALPHA_8) {
		// in this case we have to manually compare the alpha channel as the rest is garbage.
		final int length = w*h;
		for (int i = 0 ; i < length ; i++) {
		if ((argb1[i] & 0xFF000000) != (argb2[i] & 0xFF000000)) {
		return false;
		}
		}
		return true;
		}

		return Arrays.equals(argb1, argb2);
		}

		// ---- Private delegate/helper methods ----
		@@ -382,4 +518,37 @@ public final class Bitmap_Delegate {
		// and create/return a new Bitmap with it
		return new Bitmap(nativeInt, null /* buffer /, isMutable, null /ninePatchChunk*/, density);
		}

		/**
		* Creates and returns a copy of a given BufferedImage.
		* <p/>
		* if alpha is different than 255, then it is applied to the alpha channel of each pixel.
		*
		* @param image the image to copy
		* @param imageType the type of the new image
		* @param alpha an optional alpha modifier
		* @return a new BufferedImage
		*/
		/package/ static BufferedImage createCopy(BufferedImage image, int imageType, int alpha) {
		int w = image.getWidth();
		int h = image.getHeight();

		BufferedImage result = new BufferedImage(w, h, imageType);

		int[] argb = new int[w * h];
		image.getRGB(0, 0, image.getWidth(), image.getHeight(), argb, 0, image.getWidth());

		if (alpha != 255) {
		final int length = argb.length;
		for (int i = 0 ; i < length; i++) {
		int a = (argb[i] >>> 24 * alpha) / 255;
		argb[i] = (a << 24) \| (argb[i] & 0x00FFFFFF);
		}
		}

		result.setRGB(0, 0, w, h, argb, 0, w);

		return result;
		}

		}

tools/layoutlib/bridge/src/android/graphics/Canvas_Delegate.java

+230 −113

File changed.

Preview size limit exceeded, changes collapsed.

tools/layoutlib/bridge/src/android/graphics/NinePatch_Delegate.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -164,7 +164,7 @@ public final class NinePatch_Delegate {
		chunkObject.draw(bitmap_delegate.getImage(), graphics,
		left, top, right - left, bottom - top, destDensity, srcDensity);
		}
		}, paint_delegate, true /compositeOnly/);
		}, paint_delegate, true /compositeOnly/, false /forceSrcMode/);

		}

tools/layoutlib/bridge/src/android/graphics/PorterDuffXfermode_Delegate.java

+4 −0

Original line number	Diff line number	Diff line
		@@ -45,6 +45,10 @@ public class PorterDuffXfermode_Delegate extends Xfermode_Delegate {

		// ---- Public Helper methods ----

		public PorterDuff.Mode getMode() {
		return getPorterDuffMode(mMode);
		}

		@Override
		public Composite getComposite(int alpha) {
		return getComposite(getPorterDuffMode(mMode), alpha);

tools/layoutlib/bridge/src/com/android/layoutlib/bridge/impl/GcSnapshot.java

+83 −45

Original line number	Diff line number	Diff line
		@@ -18,12 +18,11 @@ package com.android.layoutlib.bridge.impl;

		import com.android.layoutlib.bridge.Bridge;

		import android.graphics.Bitmap_Delegate;
		import android.graphics.Canvas;
		import android.graphics.Paint;
		import android.graphics.Paint_Delegate;
		import android.graphics.PathEffect_Delegate;
		import android.graphics.PorterDuff;
		import android.graphics.PorterDuffXfermode_Delegate;
		import android.graphics.Rect;
		import android.graphics.RectF;
		import android.graphics.Region;
		@@ -81,11 +80,33 @@ public class GcSnapshot {
		*/
		private static class Layer {
		private final Graphics2D mGraphics;
		private final Bitmap_Delegate mBitmap;
		private final BufferedImage mImage;
		private BufferedImage mOriginalCopy;

		/**
		* Creates a layer with a graphics and a bitmap.
		*
		* @param graphics the graphics
		* @param bitmap the bitmap
		*/
		Layer(Graphics2D graphics, Bitmap_Delegate bitmap) {
		mGraphics = graphics;
		mBitmap = bitmap;
		mImage = mBitmap.getImage();
		}

		/**
		* Creates a layer with a graphics and an image. If the image belongs to a
		* {@link Bitmap_Delegate}, then {@link Layer#Layer(Graphics2D, Bitmap_Delegate)} should
		* be used.
		*
		* @param graphics the graphics
		* @param image the image
		*/
		Layer(Graphics2D graphics, BufferedImage image) {
		mGraphics = graphics;
		mBitmap = null;
		mImage = image;
		}

		@@ -100,6 +121,10 @@ public class GcSnapshot {
		}

		Layer makeCopy() {
		if (mBitmap != null) {
		return new Layer((Graphics2D) mGraphics.create(), mBitmap);
		}

		return new Layer((Graphics2D) mGraphics.create(), mImage);
		}

		@@ -111,22 +136,28 @@ public class GcSnapshot {
		BufferedImage getOriginalCopy() {
		return mOriginalCopy;
		}

		void change() {
		if (mBitmap != null) {
		mBitmap.change();
		}
		}
		}

		/**
		* Creates the root snapshot associating it with a given image.
		* Creates the root snapshot associating it with a given bitmap.
		* <p>
		* If <var>image</var> is null, then {@link GcSnapshot#setImage(BufferedImage)} must be
		* If <var>bitmap</var> is null, then {@link GcSnapshot#setBitmap(Bitmap_Delegate)} must be
		* called before the snapshot can be used to draw. Transform and clip operations are permitted
		* before.
		*
		* @param image the image to associate to the snapshot or null.
		* @return the root snapshot
		*/
		public static GcSnapshot createDefaultSnapshot(BufferedImage image) {
		public static GcSnapshot createDefaultSnapshot(Bitmap_Delegate bitmap) {
		GcSnapshot snapshot = new GcSnapshot();
		if (image != null) {
		snapshot.setImage(image);
		if (bitmap != null) {
		snapshot.setBitmap(bitmap);
		}

		return snapshot;
		@@ -295,19 +326,19 @@ public class GcSnapshot {
		}

		/**
		* Link the snapshot to a BufferedImage.
		* Link the snapshot to a Bitmap_Delegate.
		* <p/>
		* This is only for the case where the snapshot was created with a null image when calling
		* {@link #createDefaultSnapshot(BufferedImage)}, and is therefore not yet linked to
		* {@link #createDefaultSnapshot(Bitmap_Delegate)}, and is therefore not yet linked to
		* a previous snapshot.
		* <p/>
		* If any transform or clip information was set before, they are put into the Graphics object.
		* @param image the buffered image to link to.
		* @param bitmap the bitmap to link to.
		*/
		public void setImage(BufferedImage image) {
		public void setBitmap(Bitmap_Delegate bitmap) {
		assert mLayers.size() == 0;
		Graphics2D graphics2D = image.createGraphics();
		mLayers.add(new Layer(graphics2D, image));
		Graphics2D graphics2D = bitmap.getImage().createGraphics();
		mLayers.add(new Layer(graphics2D, bitmap));
		if (mTransform != null) {
		graphics2D.setTransform(mTransform);
		mTransform = null;
		@@ -483,7 +514,7 @@ public class GcSnapshot {
		* @param drawable
		*/
		public void draw(Drawable drawable) {
		draw(drawable, null, false /compositeOnly/);
		draw(drawable, null, false /compositeOnly/, false /forceSrcMode/);
		}

		/**
		@@ -494,30 +525,33 @@ public class GcSnapshot {
		* @param paint
		* @param compositeOnly whether the paint is used for composite only. This is typically
		* the case for bitmaps.
		* @param forceSrcMode if true, this overrides the composite to be SRC
		*/
		public void draw(Drawable drawable, Paint_Delegate paint, boolean compositeOnly) {
		public void draw(Drawable drawable, Paint_Delegate paint, boolean compositeOnly,
		boolean forceSrcMode) {
		// if we clip to the layer, then we only draw in the layer
		if (mLocalLayer != null && (mFlags & Canvas.CLIP_TO_LAYER_SAVE_FLAG) != 0) {
		drawInLayer(mLocalLayer, drawable, paint, compositeOnly);
		drawInLayer(mLocalLayer, drawable, paint, compositeOnly, forceSrcMode);
		} else {
		// draw in all the layers
		for (Layer layer : mLayers) {
		drawInLayer(layer, drawable, paint, compositeOnly);
		drawInLayer(layer, drawable, paint, compositeOnly, forceSrcMode);
		}
		}
		}

		private void drawInLayer(Layer layer, Drawable drawable, Paint_Delegate paint,
		boolean compositeOnly) {
		boolean compositeOnly, boolean forceSrcMode) {
		Graphics2D originalGraphics = layer.getGraphics();
		// get a Graphics2D object configured with the drawing parameters.
		Graphics2D configuredGraphics2D =
		paint != null ?
		createCustomGraphics(originalGraphics, paint, compositeOnly) :
		createCustomGraphics(originalGraphics, paint, compositeOnly, forceSrcMode) :
		(Graphics2D) originalGraphics.create();

		try {
		drawable.draw(configuredGraphics2D, paint);
		layer.change();
		} finally {
		// dispose Graphics2D object
		configuredGraphics2D.dispose();
		@@ -557,7 +591,7 @@ public class GcSnapshot {
		// now draw put the content of the local layer onto the layer, using the paint
		// information
		Graphics2D g = createCustomGraphics(baseGfx, mLocalLayerPaint,
		true /alphaOnly/);
		true /alphaOnly/, false /forceSrcMode/);

		g.drawImage(mLocalLayer.getImage(),
		mLocalLayerRegion.left, mLocalLayerRegion.top,
		@@ -603,7 +637,7 @@ public class GcSnapshot {
		* <p/>The object must be disposed ({@link Graphics2D#dispose()}) after being used.
		*/
		private Graphics2D createCustomGraphics(Graphics2D original, Paint_Delegate paint,
		boolean compositeOnly) {
		boolean compositeOnly, boolean forceSrcMode) {
		// make new one graphics
		Graphics2D g = (Graphics2D) original.create();

		@@ -680,10 +714,14 @@ public class GcSnapshot {
		// it contains the alpha
		int alpha = (compositeOnly \|\| customShader) ? paint.getAlpha() : 0xFF;

		if (forceSrcMode) {
		g.setComposite(AlphaComposite.getInstance(
		AlphaComposite.SRC, (float) alpha / 255.f));
		} else {
		boolean customXfermode = false;
		int xfermode = paint.getXfermode();
		if (xfermode > 0) {
		Xfermode_Delegate xfermodeDelegate = Xfermode_Delegate.getDelegate(paint.getXfermode());
		Xfermode_Delegate xfermodeDelegate = Xfermode_Delegate.getDelegate(xfermode);
		assert xfermodeDelegate != null;
		if (xfermodeDelegate != null) {
		if (xfermodeDelegate.isSupported()) {
		@@ -705,14 +743,14 @@ public class GcSnapshot {
		// opaque alpha channel in the paint color), then we create an AlphaComposite anyway
		// that will handle the alpha.
		if (customXfermode == false && alpha != 0xFF) {
		g.setComposite(PorterDuffXfermode_Delegate.getComposite(
		PorterDuff.Mode.SRC_OVER, alpha));
		g.setComposite(AlphaComposite.getInstance(
		AlphaComposite.SRC_OVER, (float) alpha / 255.f));
		}
		}

		return g;
		}


		private void mapRect(AffineTransform matrix, RectF dst, RectF src) {
		// array with 4 corners
		float[] corners = new float[] {