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c56a9365f6
The imported buffer may be released from its origin allocator, I would suggest to use the new file descriptor from new ion handle. The ion only has map_user() to export buffer to userspace, There is no unmap_user() because the mapping is represented as a file descriptor in user space. The closing of that file descriptor will cause the memory to be unmapped from the calling process. Change-Id: Ief855aab11793238b40b73da92af853ca3b58349 Signed-off-by: Randy Li <randy.li@rock-chips.com> Signed-off-by: ayaka <ayaka@soulik.info>
68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/*
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* Copyright 2015 Rockchip Electronics Co. LTD
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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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#if defined(__gnu_linux__)
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#include "mpp_log.h"
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#include "allocator_std.h"
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#include "allocator_ion.h"
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#ifdef HAVE_DRM
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#include "allocator_drm.h"
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#endif
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/*
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* Linux only support MPP_BUFFER_TYPE_NORMAL so far
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* we can support MPP_BUFFER_TYPE_V4L2 later
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*/
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MPP_RET os_allocator_get(os_allocator *api, MppBufferType type)
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{
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MPP_RET ret = MPP_OK;
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switch (type) {
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case MPP_BUFFER_TYPE_NORMAL : {
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*api = allocator_std;
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} break;
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case MPP_BUFFER_TYPE_ION : {
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#ifdef RKPLATFORM
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#ifdef HAVE_DRM
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*api = allocator_drm;
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#else
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*api = allocator_ion;
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#endif
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#else
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*api = allocator_std;
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#endif
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} break;
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case MPP_BUFFER_TYPE_V4L2 : {
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mpp_err("os_allocator_get Linux MPP_BUFFER_TYPE_V4L2 do not implement yet\n");
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*api = allocator_std;
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} break;
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case MPP_BUFFER_TYPE_DRM : {
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#ifdef HAVE_DRM
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*api = allocator_drm;
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#else
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*api = allocator_std;
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#endif
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} break;
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default : {
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ret = MPP_NOK;
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} break;
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}
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return ret;
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}
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#endif
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