/*
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* smart_buffer_priv.cpp - smart buffer for XCamVideoBuffer
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*
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* Copyright (c) 2016-2017 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Author: Wind Yuan <feng.yuan@intel.com>
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*/
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#include <xcam_std.h>
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#include "base/xcam_buffer.h"
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#include "video_buffer.h"
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#if HAVE_LIBDRM
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#include "drm_bo_buffer.h"
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#endif
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namespace XCam {
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class SmartBufferPriv
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: public XCamVideoBufferIntel
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{
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public:
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SmartBufferPriv (const SmartPtr<VideoBuffer> &buf);
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~SmartBufferPriv ();
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bool is_valid () const {
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return _buf_ptr.ptr ();
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}
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static void buf_ref (XCamVideoBuffer *data);
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static void buf_unref (XCamVideoBuffer *data);
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static uint8_t *buf_map (XCamVideoBuffer *data);
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static void buf_unmap (XCamVideoBuffer *data);
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static int buf_get_fd (XCamVideoBuffer *data);
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static void *buf_get_bo (XCamVideoBufferIntel *data);
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private:
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XCAM_DEAD_COPY (SmartBufferPriv);
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private:
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mutable RefCount *_ref;
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SmartPtr<VideoBuffer> _buf_ptr;
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};
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SmartBufferPriv::SmartBufferPriv (const SmartPtr<VideoBuffer> &buf)
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: _ref (NULL)
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{
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XCAM_ASSERT (buf.ptr ());
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this->_buf_ptr = buf;
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if (!buf.ptr ()) {
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return;
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}
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_ref = new RefCount ();
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const VideoBufferInfo& video_info = buf->get_video_info ();
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this->base.info = *((const XCamVideoBufferInfo*)&video_info);
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this->base.mem_type = XCAM_MEM_TYPE_PRIVATE_BO;
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this->base.timestamp = buf->get_timestamp ();
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this->base.ref = SmartBufferPriv::buf_ref;
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this->base.unref = SmartBufferPriv::buf_unref;
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this->base.map = SmartBufferPriv::buf_map;
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this->base.unmap = SmartBufferPriv::buf_unmap;
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this->base.get_fd = SmartBufferPriv::buf_get_fd;
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this->get_bo = SmartBufferPriv::buf_get_bo;
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}
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SmartBufferPriv::~SmartBufferPriv ()
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{
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delete _ref;
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}
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void
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SmartBufferPriv::buf_ref (XCamVideoBuffer *data)
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{
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SmartBufferPriv *buf = (SmartBufferPriv*) data;
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XCAM_ASSERT (buf->_ref);
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if (buf->_ref)
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buf->_ref->ref ();
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}
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void
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SmartBufferPriv::buf_unref (XCamVideoBuffer *data)
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{
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SmartBufferPriv *buf = (SmartBufferPriv*) data;
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XCAM_ASSERT (buf->_ref);
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if (buf->_ref) {
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if (!buf->_ref->unref()) {
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delete buf;
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}
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}
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}
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uint8_t *
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SmartBufferPriv::buf_map (XCamVideoBuffer *data)
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{
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SmartBufferPriv *buf = (SmartBufferPriv*) data;
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XCAM_ASSERT (buf->_buf_ptr.ptr ());
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return buf->_buf_ptr->map ();
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}
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void
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SmartBufferPriv::buf_unmap (XCamVideoBuffer *data)
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{
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SmartBufferPriv *buf = (SmartBufferPriv*) data;
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XCAM_ASSERT (buf->_buf_ptr.ptr ());
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buf->_buf_ptr->unmap ();
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}
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int
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SmartBufferPriv::buf_get_fd (XCamVideoBuffer *data)
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{
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SmartBufferPriv *buf = (SmartBufferPriv*) data;
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XCAM_ASSERT (buf->_buf_ptr.ptr ());
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return buf->_buf_ptr->get_fd ();
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}
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void *
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SmartBufferPriv::buf_get_bo (XCamVideoBufferIntel *data)
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{
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#if HAVE_LIBDRM
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SmartBufferPriv *buf = (SmartBufferPriv*) data;
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XCAM_ASSERT (buf->_buf_ptr.ptr ());
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SmartPtr<DrmBoBuffer> bo_buf = buf->_buf_ptr.dynamic_cast_ptr<DrmBoBuffer> ();
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XCAM_FAIL_RETURN (
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ERROR,
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bo_buf.ptr (),
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NULL,
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"get DrmBoBuffer failed");
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return bo_buf->get_bo ();
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#else
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XCAM_LOG_ERROR ("VideoBuffer doesn't support DrmBoBuffer");
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XCAM_UNUSED (data);
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return NULL;
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#endif
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}
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XCamVideoBuffer *
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convert_to_external_buffer (const SmartPtr<VideoBuffer> &buf)
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{
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SmartBufferPriv *priv_buf = new SmartBufferPriv (buf);
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XCAM_ASSERT (priv_buf);
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if (priv_buf->is_valid ())
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return (XCamVideoBuffer *)(priv_buf);
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delete priv_buf;
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return NULL;
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}
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}
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