[移动开发]MTK Android 11 平板横屏显示修改方法，竖屏横显

1拷贝横屏logo和关机充电动画图片

将BOOT_LOGO改为横屏：BOOT_LOGO := wuxganl

2开机logo显示横屏

diff --git a/vendor/mediatek/proprietary/bootable/bootloader/lk/platform/[xxxx]/mt_logo.c b/vendor/mediatek/proprietary/bootable/bootloader/lk/platform/[xxxx]/mt_logo.c
index 62d5a55..bae9e62 100644
--- a/vendor/mediatek/proprietary/bootable/bootloader/lk/platform/[xxxx]/mt_logo.c
+++ b/vendor/mediatek/proprietary/bootable/bootloader/lk/platform/[xxxx]/mt_logo.c
@@ -85,6 +85,8 @@ void init_fb_screen()
        } else {
                phical_screen.rotation = 0;
        }
+       phical_screen.rotation = 270;//有可能是90，看需求
 
        sync_anim_version();
        if (show_animationm_ver == 1) {

3关机充电显示横屏

diff --git a/vendor/mediatek/proprietary/external/libshowlogo/charging_animation.cpp b/vendor/mediatek/proprietary/external/libshowlogo/charging_animation.cpp
index 6d4fde0..795d331 100644
--- a/vendor/mediatek/proprietary/external/libshowlogo/charging_animation.cpp
+++ b/vendor/mediatek/proprietary/external/libshowlogo/charging_animation.cpp
@@ -753,6 +753,8 @@ int anim_fb_init(void)
     } else {
         phical_screen.rotation = 0;
     }
+       phical_screen.rotation = 270;//有可能是90
     if (MTK_LOG_ENABLE == 1) {
         SLOGD("[libshowlogo]phical_screen: width= %d,height= %d,bits_per_pixel =%d,needAllign = %d,allignWidth=%d rotation =%d ,need180Adjust = %d\n",
                 phical_screen.width, phical_screen.height,
diff --git a/vendor/mediatek/proprietary/external/libshowlogo/utils.cpp b/vendor/mediatek/proprietary/external/libshowlogo/utils.cpp
index 0db0516..729c5ac 100644
--- a/vendor/mediatek/proprietary/external/libshowlogo/utils.cpp
+++ b/vendor/mediatek/proprietary/external/libshowlogo/utils.cpp
@@ -59,5 +59,6 @@ int getRotation() {
                 break;
         }
     }
+       rotation = Rotation::ORIENTATION_270;//有可能是90
     return rotation;
 }

4开机动画显示横屏

diff --git a/frameworks/base/cmds/bootanimation/BootAnimation.cpp b/frameworks/base/cmds/bootanimation/BootAnimation.cpp
old mode 100644
new mode 100755
index bb2de17..60fe4bf
--- a/frameworks/base/cmds/bootanimation/BootAnimation.cpp
+++ b/frameworks/base/cmds/bootanimation/BootAnimation.cpp
@@ -384,12 +384,14 @@ status_t BootAnimation::readyToRun() {
     mMaxWidth = android::base::GetIntProperty("ro.surface_flinger.max_graphics_width", 0);
     mMaxHeight = android::base::GetIntProperty("ro.surface_flinger.max_graphics_height", 0);
     ui::Size resolution = displayConfig.resolution;
-    resolution = limitSurfaceSize(resolution.width, resolution.height);
+    resolution = limitSurfaceSize(resolution.height, resolution.width);
     // create the native surface
     sp<SurfaceControl> control = session()->createSurface(String8("BootAnimation"),
             resolution.getWidth(), resolution.getHeight(), PIXEL_FORMAT_RGB_565);
 
     SurfaceComposerClient::Transaction t;
+       Rect destRect(resolution.getHeight(), resolution.getWidth());
+       t.setDisplayProjection(mDisplayToken, ui::ROTATION_90, destRect, destRect);//ui::ROTATION_90 不是固定的，和MTK_LCM_PHYSICAL_ROTATION有关系
 
     // this guest property specifies multi-display IDs to show the boot animation
     // multiple ids can be set with comma (,) as separator, for example:

5开机动画显示错乱，先横屏后竖屏

--- a/frameworks/base/services/core/java/com/android/server/wm/DisplayRotation.java
+++ b/frameworks/base/services/core/java/com/android/server/wm/DisplayRotation.java
@@ -120,7 +120,7 @@ public class DisplayRotation {
      * @see #updateRotationUnchecked
      */
     @Surface.Rotation
-    private int mRotation;
+    private int mRotation=1;//可能是其他值，需要调整
 
     @VisibleForTesting
     int mLandscapeRotation;  // default landscape
@@ -1184,7 +1184,6 @@ public class DisplayRotation {
             // We will do exactly what the application asked us to do.
             preferredRotation = -1;
         }
-
         switch (orientation) {
             case ActivityInfo.SCREEN_ORIENTATION_PORTRAIT:
                 // Return portrait unless overridden.
@@ -1239,10 +1238,13 @@ public class DisplayRotation {
             default:
                 // For USER, UNSPECIFIED, NOSENSOR, SENSOR and FULL_SENSOR,
                 // just return the preferred orientation we already calculated.
-                if (preferredRotation >= 0) {
+                if (orientation == 2){/
+                                       return Surface.ROTATION_90;//可能是其他值，需要调整
 
+                               }
+                               if (preferredRotation >= 0) {
                     return preferredRotation;
                 }
-                return Surface.ROTATION_0;
+                return Surface.ROTATION_90;//可能是其他值，需要调整
 
         }
     }
 

6recovery 显示横屏

--- a/bootable/recovery/minui/graphics.cpp
+++ b/bootable/recovery/minui/graphics.cpp
@@ -393,7 +393,7 @@ int gr_init() {
   }
 
   std::string rotation_str =
-      android::base::GetProperty("ro.minui.default_rotation", "ROTATION_NONE");
+      android::base::GetProperty("ro.minui.default_rotation", "ROTATION_LEFT");//ROTATION_NONE
   if (rotation_str == "ROTATION_RIGHT") {
     gr_rotate(GRRotation::RIGHT);
   } else if (rotation_str == "ROTATION_DOWN") {