Rotate TouchVideoFrames
When a screen orientation change happens, the touch coordinates are
adjusted in InputReader to accomodate this rotation. When the user is
holding the device, the origin (0, 0) is always at the top left of the
screen.
However, currently, the TouchVideoFrames are not being rotated. This
presents a problem, because the touch coordinates cannot be directly
matched to the heatmap, as received in the HAL.
To account for this, we rotate the touch video frame.
Test: atest libinput_tests inputflinger_tests
Bug: 123241238
Change-Id: Iff45c68b1d2b237d2b1657ed76f50bb23ef8468a
diff --git a/include/input/TouchVideoFrame.h b/include/input/TouchVideoFrame.h
index 566c334..b49c623 100644
--- a/include/input/TouchVideoFrame.h
+++ b/include/input/TouchVideoFrame.h
@@ -19,6 +19,7 @@
#include <stdint.h>
#include <sys/time.h>
+#include <ui/DisplayInfo.h>
#include <vector>
namespace android {
@@ -55,11 +56,23 @@
*/
const struct timeval& getTimestamp() const;
+ /**
+ * Rotate the video frame.
+ * The rotation value is an enum from ui/DisplayInfo.h
+ */
+ void rotate(int32_t orientation);
+
private:
uint32_t mHeight;
uint32_t mWidth;
std::vector<int16_t> mData;
struct timeval mTimestamp;
+
+ /**
+ * Common method for 90 degree and 270 degree rotation
+ */
+ void rotateQuarterTurn(bool clockwise);
+ void rotate180();
};
} // namespace android