display: Add support for HW Cursor
- Retrieve cursor pipe info from driver
- Configure the layer marked with flag HWC_IS_CURSOR_LAYER to the
HWCursor using the fb_cursor ioctl.
- The config happens only when it satisfies the hw limitions of
cursor
- HWCursor is supported on primary display
- Since cursor configuration happens first, make use of drop
layer/count to handle other composition strategies
- Add support for hwc_setCursorPositionAsync as per HWC 1.4
Change-Id: I8663b6da89b0c2dd9b48af96d64a433b2b8a302c
diff --git a/liboverlay/overlayCursor.h b/liboverlay/overlayCursor.h
new file mode 100644
index 0000000..2754a8d
--- /dev/null
+++ b/liboverlay/overlayCursor.h
@@ -0,0 +1,60 @@
+/*
+* Copyright (c) 2015, 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 OVERLAY_CURSOR_H
+#define OVERLAY_CURSOR_H
+
+#include "overlay.h"
+#include "overlayUtils.h"
+
+namespace overlay {
+
+using namespace overlay;
+using namespace overlay::utils;
+
+// HW Cursor Helper
+class HWCursor {
+public:
+ static HWCursor* getInstance();
+ bool config(const int fd, void* base, PipeArgs& pargs, Dim& crop,
+ Dim& dest);
+ bool setPositionAsync(const int fd, int x, int y);
+ bool free(const int fd);
+ bool isCursorSet() { return mfbCursor.enable; }
+ void getDump(char* buf, size_t len);
+private:
+ HWCursor() { memset(&mfbCursor, 0, sizeof(mfbCursor)); }
+ bool setCursor(const int fd);
+ fb_cursor mfbCursor;
+
+ static HWCursor* sHwCursor;
+};
+}
+
+#endif // OVERLAY_CURSOR_H