Files
frameworks_base/services/java/com/android/server/wm/DimSurface.java
Jeff Brown 64a55af0ac Add plumbing for new surface flinger display API.
Cleaned up the implementation of Surface and SurfaceSession
to use more consistent naming and structure.

Added JNI for all of the new surface flinger display API calls.

Enforced the requirement that all Surfaces created by
the window manager be named.

Updated the display manager service to use the new methods.

Change-Id: I2a658f1bfd0437e1c6f9d22df8d4ffcce7284ca2
2012-08-27 14:34:54 -07:00

111 lines
4.3 KiB
Java

/*
* Copyright (C) 2011 The Android Open Source 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 com.android.server.wm;
import android.graphics.PixelFormat;
import android.util.Slog;
import android.view.Surface;
import android.view.SurfaceSession;
import java.io.PrintWriter;
class DimSurface {
Surface mDimSurface;
boolean mDimShown = false;
int mDimColor = 0;
int mLayer = -1;
int mLastDimWidth, mLastDimHeight;
DimSurface(SurfaceSession session, final int layerStack) {
if (mDimSurface == null) {
try {
if (WindowManagerService.DEBUG_SURFACE_TRACE) {
mDimSurface = new WindowStateAnimator.SurfaceTrace(session,
"DimSurface",
16, 16, PixelFormat.OPAQUE,
Surface.FX_SURFACE_DIM | Surface.HIDDEN);
} else {
mDimSurface = new Surface(session, "DimSurface",
16, 16, PixelFormat.OPAQUE,
Surface.FX_SURFACE_DIM | Surface.HIDDEN);
}
if (WindowManagerService.SHOW_TRANSACTIONS ||
WindowManagerService.SHOW_SURFACE_ALLOC) Slog.i(WindowManagerService.TAG,
" DIM " + mDimSurface + ": CREATE");
mDimSurface.setLayerStack(layerStack);
mDimSurface.setAlpha(0.0f);
mDimSurface.show();
} catch (Exception e) {
Slog.e(WindowManagerService.TAG, "Exception creating Dim surface", e);
}
}
}
/**
* Show the dim surface.
*/
void show(int dw, int dh, int layer, int color) {
if (!mDimShown) {
if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG, " DIM " + mDimSurface + ": SHOW pos=(0,0) (" +
dw + "x" + dh + " layer=" + layer + ")");
mDimShown = true;
try {
mLastDimWidth = dw;
mLastDimHeight = dh;
mDimSurface.setPosition(0, 0);
mDimSurface.setSize(dw, dh);
mDimSurface.setLayer(layer);
mDimSurface.show();
} catch (RuntimeException e) {
Slog.w(WindowManagerService.TAG, "Failure showing dim surface", e);
}
} else if (mLastDimWidth != dw || mLastDimHeight != dh || mDimColor != color
|| mLayer != layer) {
if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG, " DIM " + mDimSurface + ": pos=(0,0) (" +
dw + "x" + dh + " layer=" + layer + ")");
mLastDimWidth = dw;
mLastDimHeight = dh;
mLayer = layer;
mDimColor = color;
mDimSurface.setSize(dw, dh);
mDimSurface.setLayer(layer);
mDimSurface.setAlpha(((color>>24)&0xff)/255.0f);
}
}
void hide() {
if (mDimShown) {
mDimShown = false;
try {
if (WindowManagerService.SHOW_TRANSACTIONS) Slog.i(WindowManagerService.TAG, " HIDE " + mDimSurface);
mDimSurface.hide();
} catch (RuntimeException e) {
Slog.w(WindowManagerService.TAG, "Illegal argument exception hiding dim surface");
}
}
}
public void printTo(String prefix, PrintWriter pw) {
pw.print(prefix); pw.print("mDimSurface="); pw.println(mDimSurface);
pw.print(prefix); pw.print("mDimShown="); pw.print(mDimShown);
pw.print(" mLayer="); pw.print(mLayer);
pw.print(" mDimColor=0x"); pw.println(Integer.toHexString(mDimColor));
pw.print(prefix); pw.print("mLastDimWidth="); pw.print(mLastDimWidth);
pw.print(" mLastDimWidth="); pw.println(mLastDimWidth);
}
}