Merge "Refine zoom in and zoom out transition of iamge wallpaper." into qt-dev (61e24918) · Commits · e / os / android_frameworks_base

packages/SystemUI/src/com/android/systemui/ImageWallpaper.java

+7 −1

Original line number	Diff line number	Diff line
		@@ -83,7 +83,7 @@ public class ImageWallpaper extends WallpaperService {
		@Override
		public void onCreate(SurfaceHolder surfaceHolder) {
		setFixedSizeAllowed(true);
		setOffsetNotificationsEnabled(false);
		setOffsetNotificationsEnabled(true);
		updateSurfaceSize();
		}

		@@ -95,6 +95,12 @@ public class ImageWallpaper extends WallpaperService {
		holder.setFixedSize(width, height);
		}

		@Override
		public void onOffsetsChanged(float xOffset, float yOffset, float xOffsetStep,
		float yOffsetStep, int xPixelOffset, int yPixelOffset) {
		mRenderer.updateOffsets(xOffset, yOffset);
		}

		@Override
		public void onAmbientModeChanged(boolean inAmbientMode, long animationDuration) {
		mRenderer.updateAmbientMode(inAmbientMode,

packages/SystemUI/src/com/android/systemui/glwallpaper/GLWallpaperRenderer.java

+7 −0

Original line number	Diff line number	Diff line
		@@ -51,6 +51,13 @@ public interface GLWallpaperRenderer {
		*/
		void updateAmbientMode(boolean inAmbientMode, long duration);

		/**
		* Notify the wallpaper offsets changed.
		* @param xOffset offset along x axis.
		* @param yOffset offset along y axis.
		*/
		void updateOffsets(float xOffset, float yOffset);

		/**
		* Ask renderer to report the surface size it needs.
		*/

packages/SystemUI/src/com/android/systemui/glwallpaper/ImageGLWallpaper.java

+107 −0

Original line number	Diff line number	Diff line
		@@ -33,9 +33,12 @@ import static android.opengl.GLES20.glUniform1i;
		import static android.opengl.GLES20.glVertexAttribPointer;

		import android.graphics.Bitmap;
		import android.graphics.Rect;
		import android.opengl.GLUtils;
		import android.util.Log;

		import java.io.FileDescriptor;
		import java.io.PrintWriter;
		import java.nio.ByteBuffer;
		import java.nio.ByteOrder;
		import java.nio.FloatBuffer;
		@@ -91,6 +94,8 @@ class ImageGLWallpaper {
		private int mUniTexture;
		private int mTextureId;

		private float[] mCurrentTexCoordinate;

		ImageGLWallpaper(ImageGLProgram program) {
		mProgram = program;

		@@ -195,4 +200,106 @@ class ImageGLWallpaper {
		glUniform1i(mUniTexture, 0);
		}

		/**
		* This method adjust s(x-axis), t(y-axis) texture coordinates to get current display area
		* of texture and will be used during transition.
		* The adjustment happens if either the width or height of the surface is larger than
		* corresponding size of the display area.
		* If both width and height are larger than corresponding size of the display area,
		* the adjustment will happen at both s, t side.
		*
		* @param surface The size of the surface.
		* @param scissor The display area.
		* @param xOffset The offset amount along s axis.
		* @param yOffset The offset amount along t axis.
		*/
		void adjustTextureCoordinates(Rect surface, Rect scissor, float xOffset, float yOffset) {
		mCurrentTexCoordinate = TEXTURES.clone();

		if (surface == null \|\| scissor == null) {
		mTextureBuffer.put(mCurrentTexCoordinate);
		mTextureBuffer.position(0);
		return;
		}

		int surfaceWidth = surface.width();
		int surfaceHeight = surface.height();
		int scissorWidth = scissor.width();
		int scissorHeight = scissor.height();

		if (surfaceWidth > scissorWidth) {
		// Calculate the new s pos in pixels.
		float pixelS = (float) Math.round((surfaceWidth - scissorWidth) * xOffset);
		// Calculate the s pos in texture coordinate.
		float coordinateS = pixelS / surfaceWidth;
		// Calculate the percentage occupied by the scissor width in surface width.
		float surfacePercentageW = (float) scissorWidth / surfaceWidth;
		// Need also consider the case if surface height is smaller than scissor height.
		if (surfaceHeight < scissorHeight) {
		// We will narrow the surface percentage to keep aspect ratio.
		surfacePercentageW *= (float) surfaceHeight / scissorHeight;
		}
		// Determine the final s pos, also limit the legal s pos to prevent from out of range.
		float s = coordinateS + surfacePercentageW > 1f ? 1f - surfacePercentageW : coordinateS;
		// Traverse the s pos in texture coordinates array and adjust the s pos accordingly.
		for (int i = 0; i < mCurrentTexCoordinate.length; i += 2) {
		// indices 2, 4 and 6 are the end of s coordinates.
		if (i == 2 \|\| i == 4 \|\| i == 6) {
		mCurrentTexCoordinate[i] = Math.min(1f, s + surfacePercentageW);
		} else {
		mCurrentTexCoordinate[i] = s;
		}
		}
		}

		if (surfaceHeight > scissorHeight) {
		// Calculate the new t pos in pixels.
		float pixelT = (float) Math.round((surfaceHeight - scissorHeight) * yOffset);
		// Calculate the t pos in texture coordinate.
		float coordinateT = pixelT / surfaceHeight;
		// Calculate the percentage occupied by the scissor height in surface height.
		float surfacePercentageH = (float) scissorHeight / surfaceHeight;
		// Need also consider the case if surface width is smaller than scissor width.
		if (surfaceWidth < scissorWidth) {
		// We will narrow the surface percentage to keep aspect ratio.
		surfacePercentageH *= (float) surfaceWidth / scissorWidth;
		}
		// Determine the final t pos, also limit the legal t pos to prevent from out of range.
		float t = coordinateT + surfacePercentageH > 1f ? 1f - surfacePercentageH : coordinateT;
		// Traverse the t pos in texture coordinates array and adjust the t pos accordingly.
		for (int i = 1; i < mCurrentTexCoordinate.length; i += 2) {
		// indices 1, 3 and 11 are the end of t coordinates.
		if (i == 1 \|\| i == 3 \|\| i == 11) {
		mCurrentTexCoordinate[i] = Math.min(1f, t + surfacePercentageH);
		} else {
		mCurrentTexCoordinate[i] = t;
		}
		}
		}

		mTextureBuffer.put(mCurrentTexCoordinate);
		mTextureBuffer.position(0);
		}

		/**
		* Called to dump current state.
		* @param prefix prefix.
		* @param fd fd.
		* @param out out.
		* @param args args.
		*/
		public void dump(String prefix, FileDescriptor fd, PrintWriter out, String[] args) {
		StringBuilder sb = new StringBuilder();
		sb.append('{');
		if (mCurrentTexCoordinate != null) {
		for (int i = 0; i < mCurrentTexCoordinate.length; i++) {
		sb.append(mCurrentTexCoordinate[i]).append(',');
		if (i == mCurrentTexCoordinate.length - 1) {
		sb.deleteCharAt(sb.length() - 1);
		}
		}
		}
		sb.append('}');
		out.print(prefix); out.print("mTexCoordinates="); out.println(sb.toString());
		}
		}

packages/SystemUI/src/com/android/systemui/glwallpaper/ImageWallpaperRenderer.java

+54 −12

Original line number	Diff line number	Diff line
		@@ -29,6 +29,8 @@ import android.graphics.Rect;
		import android.util.Log;
		import android.util.MathUtils;
		import android.util.Size;
		import android.view.DisplayInfo;
		import android.view.WindowManager;

		import com.android.systemui.R;

		@@ -41,8 +43,8 @@ import java.io.PrintWriter;
		public class ImageWallpaperRenderer implements GLWallpaperRenderer,
		ImageRevealHelper.RevealStateListener {
		private static final String TAG = ImageWallpaperRenderer.class.getSimpleName();
		private static final float SCALE_VIEWPORT_MIN = 0.98f;
		private static final float SCALE_VIEWPORT_MAX = 1f;
		private static final float SCALE_VIEWPORT_MIN = 1f;
		private static final float SCALE_VIEWPORT_MAX = 1.1f;

		private final WallpaperManager mWallpaperManager;
		private final ImageGLProgram mProgram;
		@@ -51,8 +53,13 @@ public class ImageWallpaperRenderer implements GLWallpaperRenderer,
		private final ImageRevealHelper mImageRevealHelper;

		private SurfaceProxy mProxy;
		private Rect mSurfaceSize;
		private final Rect mScissor;
		private final Rect mSurfaceSize = new Rect();
		private final Rect mViewport = new Rect();
		private Bitmap mBitmap;
		private boolean mScissorMode;
		private float mXOffset;
		private float mYOffset;

		public ImageWallpaperRenderer(Context context, SurfaceProxy proxy) {
		mWallpaperManager = context.getSystemService(WallpaperManager.class);
		@@ -60,6 +67,11 @@ public class ImageWallpaperRenderer implements GLWallpaperRenderer,
		Log.w(TAG, "WallpaperManager not available");
		}

		DisplayInfo displayInfo = new DisplayInfo();
		WindowManager wm = context.getSystemService(WindowManager.class);
		wm.getDefaultDisplay().getDisplayInfo(displayInfo);
		mScissor = new Rect(0, 0, displayInfo.logicalWidth, displayInfo.logicalHeight);

		mProxy = proxy;
		mProgram = new ImageGLProgram(context);
		mWallpaper = new ImageGLWallpaper(mProgram);
		@@ -91,7 +103,7 @@ public class ImageWallpaperRenderer implements GLWallpaperRenderer,
		mBitmap = mWallpaperManager.getBitmap();
		mWallpaperManager.forgetLoadedWallpaper();
		if (mBitmap != null) {
		mSurfaceSize = new Rect(0, 0, mBitmap.getWidth(), mBitmap.getHeight());
		mSurfaceSize.set(0, 0, mBitmap.getWidth(), mBitmap.getHeight());
		}
		}
		return mBitmap != null;
		@@ -107,13 +119,17 @@ public class ImageWallpaperRenderer implements GLWallpaperRenderer,
		float threshold = mImageProcessHelper.getThreshold();
		float reveal = mImageRevealHelper.getReveal();

		glClear(GL_COLOR_BUFFER_BIT);

		glUniform1f(mWallpaper.getHandle(ImageGLWallpaper.U_AOD2OPACITY), 1);
		glUniform1f(mWallpaper.getHandle(ImageGLWallpaper.U_PER85), threshold);
		glUniform1f(mWallpaper.getHandle(ImageGLWallpaper.U_REVEAL), reveal);

		glClear(GL_COLOR_BUFFER_BIT);
		// We only need to scale viewport while doing transition.
		if (mScissorMode) {
		scaleViewport(reveal);
		} else {
		glViewport(0, 0, mSurfaceSize.width(), mSurfaceSize.height());
		}
		mWallpaper.useTexture();
		mWallpaper.draw();
		}
		@@ -123,6 +139,15 @@ public class ImageWallpaperRenderer implements GLWallpaperRenderer,
		mImageRevealHelper.updateAwake(!inAmbientMode, duration);
		}

		@Override
		public void updateOffsets(float xOffset, float yOffset) {
		mXOffset = xOffset;
		mYOffset = yOffset;
		int left = (int) ((mSurfaceSize.width() - mScissor.width()) * xOffset);
		int right = left + mScissor.width();
		mScissor.set(left, mScissor.top, right, mScissor.bottom);
		}

		@Override
		public Size reportSurfaceSize() {
		return new Size(mSurfaceSize.width(), mSurfaceSize.height());
		@@ -134,15 +159,18 @@ public class ImageWallpaperRenderer implements GLWallpaperRenderer,
		}

		private void scaleViewport(float reveal) {
		int width = mSurfaceSize.width();
		int height = mSurfaceSize.height();
		int left = mScissor.left;
		int top = mScissor.top;
		int width = mScissor.width();
		int height = mScissor.height();
		// Interpolation between SCALE_VIEWPORT_MAX and SCALE_VIEWPORT_MIN by reveal.
		float vpScaled = MathUtils.lerp(SCALE_VIEWPORT_MAX, SCALE_VIEWPORT_MIN, reveal);
		float vpScaled = MathUtils.lerp(SCALE_VIEWPORT_MIN, SCALE_VIEWPORT_MAX, reveal);
		// Calculate the offset amount from the lower left corner.
		float offset = (SCALE_VIEWPORT_MAX - vpScaled) / 2;
		float offset = (SCALE_VIEWPORT_MIN - vpScaled) / 2;
		// Change the viewport.
		glViewport((int) (width * offset), (int) (height * offset),
		mViewport.set((int) (left + width * offset), (int) (top + height * offset),
		(int) (width * vpScaled), (int) (height * vpScaled));
		glViewport(mViewport.left, mViewport.top, mViewport.right, mViewport.bottom);
		}

		@Override
		@@ -152,11 +180,19 @@ public class ImageWallpaperRenderer implements GLWallpaperRenderer,

		@Override
		public void onRevealStart() {
		mScissorMode = true;
		// Use current display area of texture.
		mWallpaper.adjustTextureCoordinates(mSurfaceSize, mScissor, mXOffset, mYOffset);
		mProxy.preRender();
		}

		@Override
		public void onRevealEnd() {
		mScissorMode = false;
		// reset texture coordinates to use full texture.
		mWallpaper.adjustTextureCoordinates(null, null, 0, 0);
		// We need draw full texture back before finishing render.
		mProxy.requestRender();
		mProxy.postRender();
		}

		@@ -164,6 +200,12 @@ public class ImageWallpaperRenderer implements GLWallpaperRenderer,
		public void dump(String prefix, FileDescriptor fd, PrintWriter out, String[] args) {
		out.print(prefix); out.print("mProxy="); out.print(mProxy);
		out.print(prefix); out.print("mSurfaceSize="); out.print(mSurfaceSize);
		out.print(prefix); out.print("mScissor="); out.print(mScissor);
		out.print(prefix); out.print("mViewport="); out.print(mViewport);
		out.print(prefix); out.print("mScissorMode="); out.print(mScissorMode);
		out.print(prefix); out.print("mXOffset="); out.print(mXOffset);
		out.print(prefix); out.print("mYOffset="); out.print(mYOffset);
		out.print(prefix); out.print("threshold="); out.print(mImageProcessHelper.getThreshold());
		mWallpaper.dump(prefix, fd, out, args);
		}
		}