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/*
* vk_video_buf_allocator.cpp - vulkan video buffer allocator implementation
*
* Copyright (c) 2017 Intel Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Author: Wind Yuan <feng.yuan@intel.com>
*/
#include "vk_video_buf_allocator.h"
#include "vk_memory.h"
#include "vk_device.h"
namespace XCam {
class VKVideoData
: public BufferData
{
friend class VKVideoBuffer;
public:
explicit VKVideoData (const SmartPtr<VKBuffer> vk_buf);
virtual ~VKVideoData ();
//derive from BufferData
virtual uint8_t *map ();
virtual bool unmap ();
bool is_valid ();
private:
uint8_t *_mem_ptr;
SmartPtr<VKBuffer> _vk_buf;
};
VKVideoData::VKVideoData (const SmartPtr<VKBuffer> vk_buf)
: _mem_ptr (NULL)
, _vk_buf (vk_buf)
{
XCAM_ASSERT (vk_buf.ptr ());
}
VKVideoData::~VKVideoData ()
{
}
bool
VKVideoData::is_valid ()
{
return _vk_buf.ptr () && XCAM_IS_VALID_VK_ID (_vk_buf->get_buf_id ());
}
uint8_t *
VKVideoData::map ()
{
if (!_mem_ptr) {
_mem_ptr = (uint8_t *)_vk_buf->map ();
}
return _mem_ptr;
}
bool
VKVideoData::unmap ()
{
if (!_mem_ptr)
return false;
_mem_ptr = NULL;
_vk_buf->unmap ();
return true;
}
VKVideoBufAllocator::VKVideoBufAllocator (const SmartPtr<VKDevice> dev)
: _dev (dev)
{
}
VKVideoBufAllocator::~VKVideoBufAllocator ()
{
}
SmartPtr<BufferData>
VKVideoBufAllocator::allocate_data (const VideoBufferInfo &buffer_info)
{
XCAM_FAIL_RETURN (
ERROR, buffer_info.size, NULL,
"VKVideoBufAllocator allocate data failed. buf_size is zero");
SmartPtr<VKBuffer> vk_buf =
VKBuffer::create_buffer (_dev, VK_BUFFER_USAGE_STORAGE_BUFFER_BIT, buffer_info.size);
XCAM_FAIL_RETURN (
ERROR, vk_buf.ptr (), NULL,
"VKVideoBufAllocator create vk memory failed. buf_size :%d", buffer_info.size);
VKBufInfo info;
info.format = buffer_info.format;
info.width = buffer_info.width;
info.height = buffer_info.height;
info.aligned_width = buffer_info.aligned_width;
info.aligned_height = buffer_info.aligned_height;
info.size = buffer_info.size;
info.strides[0] = buffer_info.strides[0];
info.strides[1] = buffer_info.strides[1];
info.offsets[0] = buffer_info.offsets[0];
info.offsets[1] = buffer_info.offsets[1];
info.slice_size[0] = buffer_info.strides[0] * buffer_info.aligned_height;
info.slice_size[1] = buffer_info.size - buffer_info.offsets[1];
vk_buf->set_buf_info (info);
SmartPtr<VKVideoData> data = new VKVideoData (vk_buf);
XCAM_FAIL_RETURN (
ERROR, data.ptr () && data->is_valid (), NULL,
"VKVideoBufAllocator allocate data failed. buf_size:%d", buffer_info.size);
return data;
}
SmartPtr<BufferProxy>
VKVideoBufAllocator::create_buffer_from_data (SmartPtr<BufferData> &data)
{
const VideoBufferInfo &info = get_video_info ();
XCAM_ASSERT (data.ptr ());
return new VKVideoBuffer (info, data);
}
VKVideoBuffer::VKVideoBuffer (const VideoBufferInfo &info, const SmartPtr<BufferData> &data)
: BufferProxy (info, data)
{
}
SmartPtr<VKBuffer>
VKVideoBuffer::get_vk_buf ()
{
SmartPtr<BufferData> data = get_buffer_data ();
SmartPtr<VKVideoData> vk_data = data.dynamic_cast_ptr<VKVideoData> ();
XCAM_FAIL_RETURN (
ERROR, vk_data.ptr () && vk_data->_vk_buf.ptr (), VK_NULL_HANDLE,
"VKVideoBuffer get buf_id failed, data is empty");
return vk_data->_vk_buf;
}
SmartPtr<BufferPool>
create_vk_buffer_pool (const SmartPtr<VKDevice> &dev)
{
XCAM_FAIL_RETURN (
ERROR, dev.ptr () && XCAM_IS_VALID_VK_ID(dev->get_dev_id()), NULL,
"create_vk_buffer_pool failed since vk device is invalid");
return new VKVideoBufAllocator (dev);
}
}
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