[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
  • 问题描述
  • 解决方法

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

• 开机动画横屏

--- 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 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.

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