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/*
* Copyright (C) 2010 ARM Limited. All rights reserved.
*
* Portions of this code have been modified from the original.
* These modifications are:
* * includes
* * struct private_handle_t
* * usesPhysicallyContiguousMemory()
* * validate()
* * dynamicCast()
*
* 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 GRALLOC_PRIV_H_
#define GRALLOC_PRIV_H_
#include <stdint.h>
#include <pthread.h>
#include <errno.h>
#include <linux/fb.h>
#include <hardware/gralloc.h>
#include <cutils/native_handle.h>
/*#include <ump/ump.h>*/
#include "ump.h"
/*
* HWC_HWOVERLAY is flag for location of glReadPixels().
* Enable this define if you want that glReadPixesl() is in HWComposer.
* If you disable this define, glReadPixesl() is called in threadloop().
*/
#define HWC_HWOVERLAY 1
#define GRALLOC_ARM_UMP_MODULE 1
struct private_handle_t;
struct private_module_t {
gralloc_module_t base;
private_handle_t* framebuffer;
uint32_t flags;
uint32_t numBuffers;
uint32_t bufferMask;
pthread_mutex_t lock;
buffer_handle_t currentBuffer;
int ion_client;
struct fb_var_screeninfo info;
struct fb_fix_screeninfo finfo;
float xdpi;
float ydpi;
float fps;
int enableVSync;
enum {
PRIV_USAGE_LOCKED_FOR_POST = 0x80000000
};
};
#ifdef USE_PARTIAL_FLUSH
struct private_handle_rect {
int handle;
int stride;
int l;
int t;
int w;
int h;
int locked;
struct private_handle_rect *next;
};
#endif
#ifdef __cplusplus
struct private_handle_t : public native_handle
{
#else
struct private_handle_t {
struct native_handle nativeHandle;
#endif
enum {
PRIV_FLAGS_FRAMEBUFFER = 0x00000001,
PRIV_FLAGS_USES_UMP = 0x00000002,
PRIV_FLAGS_USES_PMEM = 0x00000004,
PRIV_FLAGS_USES_IOCTL = 0x00000008,
PRIV_FLAGS_USES_HDMI = 0x00000010,
PRIV_FLAGS_USES_ION = 0x00000020,
PRIV_FLAGS_NONE_CACHED = 0x00000040,
};
enum {
LOCK_STATE_WRITE = 1<<31,
LOCK_STATE_MAPPED = 1<<30,
LOCK_STATE_READ_MASK = 0x3FFFFFFF
};
int fd;
int magic;
int flags;
int size;
int base;
int lockState;
int writeOwner;
int pid;
/* Following members are for UMP memory only */
int ump_id;
int ump_mem_handle;
int offset;
int paddr;
int format;
int usage;
int width;
int height;
int bpp;
int stride;
/* Following members are for ION memory only */
int ion_client;
/* Following members ard for YUV information */
unsigned int yaddr;
unsigned int uoffset;
unsigned int voffset;
#ifdef __cplusplus
static const int sNumInts = 21;
static const int sNumFds = 1;
static const int sMagic = 0x3141592;
private_handle_t(int flags, int size, int base, int lock_state, ump_secure_id secure_id, ump_handle handle,int fd_val, int offset_val, int paddr_val):
fd(fd_val),
magic(sMagic),
flags(flags),
size(size),
base(base),
lockState(lock_state),
writeOwner(0),
pid(getpid()),
ump_id((int)secure_id),
ump_mem_handle((int)handle),
offset(offset_val),
paddr(paddr_val),
format(0),
usage(0),
width(0),
height(0),
bpp(0),
stride(0),
ion_client(0),
yaddr(0),
uoffset(0),
voffset(0)
{
version = sizeof(native_handle);
numFds = sNumFds;
numInts = sNumInts;
}
private_handle_t(int flags, int size, int base, int lock_state, int fb_file, int fb_offset):
fd(fb_file),
magic(sMagic),
flags(flags),
size(size),
base(base),
lockState(lock_state),
writeOwner(0),
pid(getpid()),
ump_id((int)UMP_INVALID_SECURE_ID),
ump_mem_handle((int)UMP_INVALID_MEMORY_HANDLE),
offset(fb_offset),
paddr(0),
format(0),
usage(0),
width(0),
height(0),
bpp(0),
stride(0),
ion_client(0),
yaddr(0),
uoffset(0),
voffset(0)
{
version = sizeof(native_handle);
numFds = sNumFds;
numInts = sNumInts;
}
~private_handle_t()
{
magic = 0;
}
bool usesPhysicallyContiguousMemory()
{
return (flags & PRIV_FLAGS_FRAMEBUFFER) ? true : false;
}
static int validate(const native_handle* h)
{
const private_handle_t* hnd = (const private_handle_t*)h;
if (!h || h->version != sizeof(native_handle) ||
h->numInts != sNumInts ||
h->numFds != sNumFds ||
hnd->magic != sMagic)
return -EINVAL;
return 0;
}
static private_handle_t* dynamicCast(const native_handle* in)
{
if (validate(in) == 0)
return (private_handle_t*) in;
return NULL;
}
#endif
};
#endif /* GRALLOC_PRIV_H_ */
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