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155 lines
4.9 KiB
155 lines
4.9 KiB
/*
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* Copyright (c) 2016-2017, The Linux Foundation. All rights reserved.
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* Not a Contribution.
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*
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* Copyright 2015 The Android Open Source Project
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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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#include "EGLImageWrapper.h"
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#include <cutils/native_handle.h>
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#include <gralloc_priv.h>
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#include <ui/GraphicBuffer.h>
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#include <fcntl.h>
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#include <linux/msm_ion.h>
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//-----------------------------------------------------------------------------
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void free_ion_cookie(int ion_fd, int cookie)
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//-----------------------------------------------------------------------------
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{
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if (ion_fd && !ioctl(ion_fd, ION_IOC_FREE, &cookie)) {
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} else {
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ALOGE("ION_IOC_FREE failed: ion_fd = %d, cookie = %d", ion_fd, cookie);
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}
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}
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//-----------------------------------------------------------------------------
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int get_ion_cookie(int ion_fd, int fd)
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//-----------------------------------------------------------------------------
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{
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int cookie = fd;
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struct ion_fd_data fdData;
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memset(&fdData, 0, sizeof(fdData));
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fdData.fd = fd;
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if (ion_fd && !ioctl(ion_fd, ION_IOC_IMPORT, &fdData)) {
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cookie = fdData.handle;
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} else {
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ALOGE("ION_IOC_IMPORT failed: ion_fd = %d, fd = %d", ion_fd, fd);
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}
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return cookie;
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}
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//-----------------------------------------------------------------------------
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EGLImageWrapper::DeleteEGLImageCallback::DeleteEGLImageCallback(int fd)
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//-----------------------------------------------------------------------------
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{
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ion_fd = fd;
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}
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//-----------------------------------------------------------------------------
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void EGLImageWrapper::DeleteEGLImageCallback::operator()(int& k, EGLImageBuffer*& eglImage)
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//-----------------------------------------------------------------------------
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{
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free_ion_cookie(ion_fd, k);
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if( eglImage != 0 )
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{
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delete eglImage;
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}
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}
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//-----------------------------------------------------------------------------
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EGLImageWrapper::EGLImageWrapper()
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//-----------------------------------------------------------------------------
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{
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eglImageBufferMap = new android::LruCache<int, EGLImageBuffer*>(32);
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ion_fd = open("/dev/ion", O_RDONLY);
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callback = new DeleteEGLImageCallback(ion_fd);
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eglImageBufferMap->setOnEntryRemovedListener(callback);
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}
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//-----------------------------------------------------------------------------
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EGLImageWrapper::~EGLImageWrapper()
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//-----------------------------------------------------------------------------
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{
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if( eglImageBufferMap != 0 )
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{
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eglImageBufferMap->clear();
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delete eglImageBufferMap;
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eglImageBufferMap = 0;
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}
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if( callback != 0 )
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{
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delete callback;
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callback = 0;
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}
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if( ion_fd > 0 )
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{
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close(ion_fd);
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}
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ion_fd = -1;
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}
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//-----------------------------------------------------------------------------
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static EGLImageBuffer* L_wrap(const private_handle_t *src)
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//-----------------------------------------------------------------------------
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{
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EGLImageBuffer* result = 0;
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native_handle_t *native_handle = const_cast<private_handle_t *>(src);
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int flags = android::GraphicBuffer::USAGE_HW_TEXTURE |
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android::GraphicBuffer::USAGE_SW_READ_NEVER |
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android::GraphicBuffer::USAGE_SW_WRITE_NEVER;
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if (src->flags & private_handle_t::PRIV_FLAGS_SECURE_BUFFER) {
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flags |= android::GraphicBuffer::USAGE_PROTECTED;
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}
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android::sp<android::GraphicBuffer> graphicBuffer =
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new android::GraphicBuffer(src->unaligned_width, src->unaligned_height, src->format,
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#ifndef __NOUGAT__
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1, // Layer count
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#endif
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flags, src->width /*src->stride*/,
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native_handle, false);
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result = new EGLImageBuffer(graphicBuffer);
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return result;
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}
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//-----------------------------------------------------------------------------
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EGLImageBuffer *EGLImageWrapper::wrap(const void *pvt_handle)
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//-----------------------------------------------------------------------------
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{
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const private_handle_t *src = static_cast<const private_handle_t *>(pvt_handle);
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int ion_cookie = get_ion_cookie(ion_fd, src->fd);
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EGLImageBuffer* eglImage = eglImageBufferMap->get(ion_cookie);
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if( eglImage == 0 )
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{
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eglImage = L_wrap(src);
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eglImageBufferMap->put(ion_cookie, eglImage);
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}
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else {
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free_ion_cookie(ion_fd, ion_cookie);
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}
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return eglImage;
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}
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