display: Add display metadata in buffer handle
Allocate extra space for metadata in buffer handles
Provide api to map this space in client process and set the metadata
Change-Id: I8bca8448670d4aa88d439320faf402dae30458f8
diff --git a/libqdutils/qdMetaData.cpp b/libqdutils/qdMetaData.cpp
new file mode 100644
index 0000000..a53ba07
--- /dev/null
+++ b/libqdutils/qdMetaData.cpp
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2012, 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.
+ */
+
+#include <string.h>
+#include <sys/mman.h>
+#include <cutils/log.h>
+#include <gralloc_priv.h>
+#include "qdMetaData.h"
+
+int setMetaData(private_handle_t *handle, DispParamType paramType,
+ void *param) {
+ if (!handle) {
+ ALOGE("%s: Private handle is null!", __func__);
+ return -1;
+ }
+ if (handle->fd_metadata == -1) {
+ ALOGE("%s: Bad fd for extra data!", __func__);
+ return -1;
+ }
+ unsigned long size = ROUND_UP_PAGESIZE(sizeof(MetaData_t));
+ void *base = mmap(NULL, size, PROT_READ|PROT_WRITE, MAP_SHARED,
+ handle->fd_metadata, 0);
+ if (!base) {
+ ALOGE("%s: mmap() failed: Base addr is NULL!", __func__);
+ return -1;
+ }
+ MetaData_t *data = reinterpret_cast <MetaData_t *>(base);
+ data->operation |= paramType;
+ switch (paramType) {
+ case PP_PARAM_HSIC:
+ memcpy((void *)&data->hsicData, param, sizeof(HSICData_t));
+ break;
+ case PP_PARAM_SHARPNESS:
+ data->sharpness = *((int32_t *)param);
+ break;
+ case PP_PARAM_VID_INTFC:
+ data->video_interface = *((int32_t *)param);
+ break;
+ case PP_PARAM_INTERLACED:
+ data->interlaced = *((int32_t *)param);
+ break;
+ default:
+ ALOGE("Unknown paramType %d", paramType);
+ break;
+ }
+ if(munmap(base, size))
+ ALOGE("%s: failed to unmap ptr 0x%x, err %d", __func__, (int)base,
+ errno);
+ return 0;
+}