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7d29f32280
Due to complexity of different kernel and usespace combination we have to detect drm and ion allocator on runtime. The HAVE_DRM flag may not be trust at all time. So we add a simple detection function on first run. Change-Id: Id4f6b2278ee0fe50ffc9806fffc5b01267f723da Signed-off-by: Herman Chen <herman.chen@rock-chips.com>
81 lines
2.1 KiB
C++
81 lines
2.1 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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#define MODULE_TAG "mpp_rt"
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#include <fcntl.h>
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#include <unistd.h>
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#include "mpp_log.h"
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#include "mpp_runtime.h"
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class MppRuntimeService
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{
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private:
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// avoid any unwanted function
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MppRuntimeService();
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~MppRuntimeService() {};
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MppRuntimeService(const MppRuntimeService &);
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MppRuntimeService &operator=(const MppRuntimeService &);
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RK_U32 allocator_valid[MPP_BUFFER_TYPE_BUTT];
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public:
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static MppRuntimeService *get_instance() {
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static MppRuntimeService instance;
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return &instance;
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}
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RK_U32 get_allocator_valid(MppBufferType type);
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};
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RK_U32 MppRuntimeService::get_allocator_valid(MppBufferType type)
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{
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return (type < MPP_BUFFER_TYPE_BUTT) ? allocator_valid[type] : (0);
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};
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MppRuntimeService::MppRuntimeService()
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{
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int fd = -1;
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allocator_valid[MPP_BUFFER_TYPE_NORMAL] = 1;
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allocator_valid[MPP_BUFFER_TYPE_V4L2] = 0;
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fd = open("/dev/ion", O_RDWR);
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if (fd < 0) {
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allocator_valid[MPP_BUFFER_TYPE_ION] = 0;
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mpp_log("NOT found ion allocator\n");
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} else {
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allocator_valid[MPP_BUFFER_TYPE_ION] = 1;
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mpp_log("found ion allocator\n");
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close(fd);
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}
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fd = open("/dev/dri/card0", O_RDWR);
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if (fd < 0) {
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allocator_valid[MPP_BUFFER_TYPE_DRM] = 0;
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mpp_log("NOT found drm allocator\n");
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} else {
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allocator_valid[MPP_BUFFER_TYPE_DRM] = 1;
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mpp_log("found drm allocator\n");
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close(fd);
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}
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}
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RK_U32 mpp_rt_allcator_is_valid(MppBufferType type)
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{
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return MppRuntimeService::get_instance()->get_allocator_valid(type);
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}
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