[高通MSM8953][Android10]开机强制横屏以及第二帧动画横屏

文章目录

开发平台基本信息

芯片:MSM8953

版本:Android 10.0

kernel:msm-4.9

问题描述

设备硬件的LCD屏幕是竖屏的，而实际产品是横屏设备，于是需要将设备强制横屏显示。我这套代码只用了一款产品，所以我这里就直接写死横屏了，如果有多产品的，要做好横竖屏适配。

解决方法

--- a/frameworks/base/cmds/bootanimation/BootAnimation.cpp+++ b/frameworks/base/cmds/bootanimation/BootAnimation.cpp@@ -279,6 +279,16 @@ status_t BootAnimation::readyToRun() {if (status)return -1;+ int orientation = 1; // landscape+ if (orientation) {+ if (dinfo.h > dinfo.w) {+ int temp = dinfo.h;+ dinfo.h= dinfo.w;+ dinfo.w= temp;+ }+ }+ +// create the native surfacesp<SurfaceControl> control = session()->createSurface(String8("BootAnimation"),dinfo.w, dinfo.h, PIXEL_FORMAT_RGB_565);

系统横屏

--- a/frameworks/base/services/core/java/com/android/server/wm/DisplayContent.java+++ b/frameworks/base/services/core/java/com/android/server/wm/DisplayContent.java@@ -1322,7 +1322,8 @@ class DisplayContent extends WindowContainer<DisplayContent.DisplayChildWindowCoprivate boolean updateOrientationFromAppTokens(boolean forceUpdate) {- final int req = getOrientation();- int req = getOrientation();- req = android.content.pm.ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;if (req != mLastOrientation || forceUpdate) {mLastOrientation = req;mDisplayRotation.setCurrentOrientation(req);--- a/frameworks/native/services/surfaceflinger/DisplayDevice.cpp+++ b/frameworks/native/services/surfaceflinger/DisplayDevice.cpp@@ -90,7 +90,7 @@ DisplayDevice::DisplayDevice(DisplayDeviceCreationArgs&& args)setPowerMode(args.initialPowerMode);// initialize the display orientation transform.- setProjection(DisplayState::eOrientationDefault, Rect::INVALID_RECT, Rect::INVALID_RECT);- setProjection(DisplayState::eOrientation90, Rect::INVALID_RECT, Rect::INVALID_RECT);}DisplayDevice::~DisplayDevice() = default;@@ -244,6 +244,12 @@ void DisplayDevice::setProjection(int orientation,// the destination frame can be invalid if it has never been set,// in that case we assume the whole display frame.frame = Rect(w, h);- int orient = 1; // landscape- if (orient) {- if (h > w) {-frame = Rect(h, w);- }- }}--- a/frameworks/native/services/surfaceflinger/SurfaceFlinger.cpp+++ b/frameworks/native/services/surfaceflinger/SurfaceFlinger.cpp@@ -5229,7 +5229,7 @@ void SurfaceFlinger::onInitializeDisplays() {DisplayState::eLayerStackChanged;d.token = token;d.layerStack = 0;- d.orientation = DisplayState::eOrientationDefault;- d.orientation = DisplayState::eOrientation90;d.frame.makeInvalid();d.viewport.makeInvalid();d.width = 0;

开机动画第二帧横屏

通过上面的修改，动画跟系统都能正常横屏显示了，但是，在动画快结束即将进入桌面的时候，最后一帧动画会变得异常，既不是横屏，也不是竖屏。增加以下修改即可解决问题。

--- a/frameworks/base/services/core/java/com/android/server/wm/DisplayContent.java+++ b/frameworks/base/services/core/java/com/android/server/wm/DisplayContent.java@@ -361,7 +361,7 @@ class DisplayContent extends WindowContainer<DisplayContent.DisplayChildWindowCo** @see #updateRotationUnchecked()*/- private int mRotation = 0;+ private int mRotation = 1;/*** Last applied orientation of the display.