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am 1438f6da: am 62205596: Merge "Fix camera orientation by swapping horizontal and vertical flips when needed." into lmp-dev 

* commit '1438f6da7ef3b35e1a20f7824f3fe3e5f9196c16':
  Fix camera orientation by swapping horizontal and vertical flips when needed.
This commit is contained in:
Michael Lentine 2014-08-19 23:57:58 +00:00 committed by Android Git Automerger
parent b5a2fe50be 1438f6da7e
commit dcfa424548
1 changed files with 18 additions and 1 deletions
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19
services/surfaceflinger/Layer.cpp
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@ -332,6 +332,14 @@ FloatRect Layer::computeCrop(const sp<const DisplayDevice>& hw) const {
if (invTransformOrient & NATIVE_WINDOW_TRANSFORM_ROT_90) {
invTransformOrient ^= NATIVE_WINDOW_TRANSFORM_FLIP_V |
NATIVE_WINDOW_TRANSFORM_FLIP_H;
// If the transform has been rotated the axis of flip has been swapped
// so we need to swap which flip operations we are performing
bool is_h_flipped = (invTransform & NATIVE_WINDOW_TRANSFORM_FLIP_H) != 0;
bool is_v_flipped = (invTransform & NATIVE_WINDOW_TRANSFORM_FLIP_V) != 0;
if (is_h_flipped != is_v_flipped) {
invTransform ^= NATIVE_WINDOW_TRANSFORM_FLIP_V |
NATIVE_WINDOW_TRANSFORM_FLIP_H;
}
}
// and apply to the current transform
invTransform = (Transform(invTransform) * Transform(invTransformOrient)).getOrientation();
@ -411,13 +419,22 @@ void Layer::setGeometry(
* the code below applies the display's inverse transform to the buffer
*/
uint32_t invTransform = hw->getOrientationTransform();
uint32_t t_orientation = transform.getOrientation();
// calculate the inverse transform
if (invTransform & NATIVE_WINDOW_TRANSFORM_ROT_90) {
invTransform ^= NATIVE_WINDOW_TRANSFORM_FLIP_V |
NATIVE_WINDOW_TRANSFORM_FLIP_H;
// If the transform has been rotated the axis of flip has been swapped
// so we need to swap which flip operations we are performing
bool is_h_flipped = (t_orientation & NATIVE_WINDOW_TRANSFORM_FLIP_H) != 0;
bool is_v_flipped = (t_orientation & NATIVE_WINDOW_TRANSFORM_FLIP_V) != 0;
if (is_h_flipped != is_v_flipped) {
t_orientation ^= NATIVE_WINDOW_TRANSFORM_FLIP_V |
NATIVE_WINDOW_TRANSFORM_FLIP_H;
}
}
// and apply to the current transform
transform = transform * Transform(invTransform);
transform = Transform(t_orientation) * Transform(invTransform);
}
// this gives us only the "orientation" component of the transform