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add "ro.sf.hwrotation" support #3

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add "ro.sf.hwrotation" support #3

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22 changes: 22 additions & 0 deletions services/surfaceflinger/DisplayDevice.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -427,6 +427,22 @@ void DisplayDevice::setProjection(int orientation,
Rect viewport(newViewport);
Rect frame(newFrame);

int displayOrientation = DisplayState::eOrientationDefault;
char property[PROPERTY_VALUE_MAX];
if (mType == DISPLAY_PRIMARY) {
if (property_get("ro.sf.hwrotation", property, NULL) > 0) {
switch (atoi(property)) {
case 90:
displayOrientation = DisplayState::eOrientation90;
break;
case 270:
displayOrientation = DisplayState::eOrientation270;
break;
}
}
}

orientation = (orientation + displayOrientation) % 4;
const int w = mDisplayWidth;
const int h = mDisplayHeight;

Expand All @@ -440,10 +456,16 @@ void DisplayDevice::setProjection(int orientation,
frame = Rect(h, w);
} else {
frame = Rect(w, h);
if (R.getOrientation() & Transform::ROT_90) {
// frame is always specified in the logical orientation
// of the display (ie: post-rotation).
swap(frame.right, frame.bottom);
}
}
}

if (viewport.isEmpty()) {
b/services/surfaceflinger/SurfaceFlinger.cpp
// viewport can be invalid if it has never been set, in that case
// we assume the whole display size.
// it's also invalid to have an empty viewport, so we handle that
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