msm8996-common: zuk: Import OSS Camera HAL

Tag: LA.HB.1.3.2-32600-8x96.0
Signed-off-by: Davide Garberi <dade.garberi@gmail.com>

1 files changed, 76 insertions, 0 deletions

diff --git a/camera/QCamera2/util/QCameraDisplay.h b/camera/QCamera2/util/QCameraDisplay.h
new file mode 100644
index 0000000..8b7e4c9
--- /dev/null
+++ b/camera/QCamera2/util/QCameraDisplay.h
@@ -0,0 +1,76 @@
+/* Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ *       copyright notice, this list of conditions and the following
+ *       disclaimer in the documentation and/or other materials provided
+ *       with the distribution.
+ *     * Neither the name of The Linux Foundation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef __QCAMERADISPLAY_H__
+#define __QCAMERADISPLAY_H__
+
+#include <gui/DisplayEventReceiver.h>
+#include <android/looper.h>
+#include <utils/Looper.h>
+
+namespace qcamera {
+
+#define CAMERA_NUM_VSYNC_INTERVAL_HISTORY  6
+
+class QCameraDisplay {
+public:
+    QCameraDisplay();
+    ~QCameraDisplay();
+    static int   vsyncEventReceiverCamera(int fd, int events, void* data);
+    static void* vsyncThreadCamera(void * data);
+    void         computeAverageVsyncInterval(nsecs_t currentVsyncTimeStamp);
+    nsecs_t      computePresentationTimeStamp(nsecs_t frameTimeStamp);
+
+private:
+    pthread_t mVsyncThreadCameraHandle;
+    nsecs_t   mVsyncTimeStamp;
+    nsecs_t   mAvgVsyncInterval;
+    nsecs_t   mOldTimeStamp;
+    nsecs_t   mVsyncIntervalHistory[CAMERA_NUM_VSYNC_INTERVAL_HISTORY];
+    nsecs_t   mVsyncHistoryIndex;
+    nsecs_t   mAdditionalVsyncOffsetForWiggle;
+    uint32_t  mThreadExit;
+    // Tunable property. Increasing this will increase the frame delay and will loose
+    // the real time display.
+    uint32_t  mNum_vsync_from_vfe_isr_to_presentation_timestamp;
+    // Tunable property. Set the time stamp x ms prior to expected vsync so that
+    // it will be picked in that vsync
+    uint32_t  mSet_timestamp_num_ms_prior_to_vsync;
+    // Tunable property for filtering timestamp wiggle when VFE ISR crosses
+    // over MDP ISR over a period. Typical scenario is VFE is running at
+    // 30.2 fps vs display running at 60 fps.
+    uint32_t  mVfe_and_mdp_freq_wiggle_filter_max_ms;
+    uint32_t  mVfe_and_mdp_freq_wiggle_filter_min_ms;
+
+    android::DisplayEventReceiver  mDisplayEventReceiver;
+};
+
+}; // namespace qcamera
+
+#endif /* __QCAMERADISPLAY_H__ */