84 lines
2.5 KiB
C++
84 lines
2.5 KiB
C++
/*
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* Copyright (C) 2008 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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#ifndef ANDROID_UI_PRIVATE_SW_GRALLOC_HANDLE_H
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#define ANDROID_UI_PRIVATE_SW_GRALLOC_HANDLE_H
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#include <stdint.h>
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#include <limits.h>
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#include <sys/cdefs.h>
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#include <hardware/gralloc.h>
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#include <errno.h>
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#include <cutils/native_handle.h>
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namespace android {
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/*****************************************************************************/
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struct sw_gralloc_handle_t : public native_handle
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{
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// file-descriptors
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int fd;
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// ints
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int magic;
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int size;
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int base;
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int prot;
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int pid;
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static const int sNumInts = 5;
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static const int sNumFds = 1;
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static const int sMagic = '_sgh';
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sw_gralloc_handle_t() :
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fd(-1), magic(sMagic), size(0), base(0), prot(0), pid(getpid())
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{
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version = sizeof(native_handle);
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numInts = sNumInts;
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numFds = sNumFds;
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}
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~sw_gralloc_handle_t() {
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magic = 0;
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}
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static int validate(const native_handle* h) {
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const sw_gralloc_handle_t* hnd = (const sw_gralloc_handle_t*)h;
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if (!h || h->version != sizeof(native_handle) ||
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h->numInts != sNumInts || h->numFds != sNumFds ||
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hnd->magic != sMagic)
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{
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return -EINVAL;
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}
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return 0;
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}
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static status_t alloc(uint32_t w, uint32_t h, int format,
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int usage, buffer_handle_t* handle, int32_t* stride);
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static status_t free(sw_gralloc_handle_t* hnd);
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static status_t registerBuffer(sw_gralloc_handle_t* hnd);
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static status_t unregisterBuffer(sw_gralloc_handle_t* hnd);
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static status_t lock(sw_gralloc_handle_t* hnd, int usage,
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int l, int t, int w, int h, void** vaddr);
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static status_t unlock(sw_gralloc_handle_t* hnd);
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};
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/*****************************************************************************/
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}; // namespace android
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#endif /* ANDROID_UI_PRIVATE_SW_GRALLOC_HANDLE_H */
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