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