/*
* Copyright (C) 2008 The Android Open Source Project
* Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.
*
* 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 <limits.h>
#include <sys/cdefs.h>
#include <hardware/gralloc.h>
#include <pthread.h>
#include <errno.h>
#include <unistd.h>
#include <cutils/native_handle.h>
#include <cutils/log.h>
#define ROUND_UP_PAGESIZE(x) ( (((unsigned long)(x)) + PAGE_SIZE-1) & \
(~(PAGE_SIZE-1)) )
enum {
/* gralloc usage bits indicating the type
* of allocation that should be used */
/* SYSTEM heap comes from kernel vmalloc,
* can never be uncached, is not secured*/
GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP = GRALLOC_USAGE_PRIVATE_0,
/* SF heap is used for application buffers, is not secured */
GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP = GRALLOC_USAGE_PRIVATE_1,
/* IOMMU heap comes from manually allocated pages,
* can be cached/uncached, is not secured */
GRALLOC_USAGE_PRIVATE_IOMMU_HEAP = GRALLOC_USAGE_PRIVATE_2,
/* MM heap is a carveout heap for video, can be secured*/
GRALLOC_USAGE_PRIVATE_MM_HEAP = GRALLOC_USAGE_PRIVATE_3,
/* CAMERA heap is a carveout heap for camera, is not secured*/
GRALLOC_USAGE_PRIVATE_CAMERA_HEAP = 0x01000000,
/* Set this for allocating uncached memory (using O_DSYNC)
* cannot be used with noncontiguous heaps */
GRALLOC_USAGE_PRIVATE_UNCACHED = 0x02000000,
/* Buffer content should be displayed on an external display only */
GRALLOC_USAGE_PRIVATE_EXTERNAL_ONLY = 0x08000000,
/* Only this buffer content should be displayed on external, even if
* other EXTERNAL_ONLY buffers are available. Used during suspend.
*/
GRALLOC_USAGE_PRIVATE_EXTERNAL_BLOCK = 0x00100000,
/* Close Caption displayed on an external display only */
GRALLOC_USAGE_PRIVATE_EXTERNAL_CC = 0x00200000,
/* Use this flag to request content protected buffers. Please note
* that this flag is different from the GRALLOC_USAGE_PROTECTED flag
* which can be used for buffers that are not secured for DRM
* but still need to be protected from screen captures
*/
GRALLOC_USAGE_PRIVATE_CP_BUFFER = 0x00400000,
};
enum {
/* Gralloc perform enums
*/
GRALLOC_MODULE_PERFORM_CREATE_HANDLE_FROM_BUFFER = 1,
GRALLOC_MODULE_PERFORM_GET_STRIDE,
};
#define GRALLOC_HEAP_MASK (GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP |\
GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP |\
GRALLOC_USAGE_PRIVATE_IOMMU_HEAP |\
GRALLOC_USAGE_PRIVATE_MM_HEAP |\
GRALLOC_USAGE_PRIVATE_CAMERA_HEAP)
#define INTERLACE_MASK 0x80
#define S3D_FORMAT_MASK 0xFF000
/*****************************************************************************/
enum {
/* OEM specific HAL formats */
HAL_PIXEL_FORMAT_NV12_ENCODEABLE = 0x102,
HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS = 0x7FA30C04,
HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED = 0x7FA30C03,
HAL_PIXEL_FORMAT_YCbCr_420_SP = 0x109,
HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO = 0x7FA30C01,
HAL_PIXEL_FORMAT_YCrCb_422_SP = 0x10B,
HAL_PIXEL_FORMAT_R_8 = 0x10D,
HAL_PIXEL_FORMAT_RG_88 = 0x10E,
HAL_PIXEL_FORMAT_YCbCr_444_SP = 0x10F,
HAL_PIXEL_FORMAT_YCrCb_444_SP = 0x110,
HAL_PIXEL_FORMAT_INTERLACE = 0x180,
};
/* possible formats for 3D content*/
enum {
HAL_NO_3D = 0x0000,
HAL_3D_IN_SIDE_BY_SIDE_L_R = 0x10000,
HAL_3D_IN_TOP_BOTTOM = 0x20000,
HAL_3D_IN_INTERLEAVE = 0x40000,
HAL_3D_IN_SIDE_BY_SIDE_R_L = 0x80000,
HAL_3D_OUT_SIDE_BY_SIDE = 0x1000,
HAL_3D_OUT_TOP_BOTTOM = 0x2000,
HAL_3D_OUT_INTERLEAVE = 0x4000,
HAL_3D_OUT_MONOSCOPIC = 0x8000
};
enum {
BUFFER_TYPE_UI = 0,
BUFFER_TYPE_VIDEO
};
/*****************************************************************************/
#ifdef __cplusplus
struct private_handle_t : public native_handle {
#else
struct private_handle_t {
native_handle_t nativeHandle;
#endif
enum {
PRIV_FLAGS_FRAMEBUFFER = 0x00000001,
PRIV_FLAGS_USES_PMEM = 0x00000002,
PRIV_FLAGS_USES_PMEM_ADSP = 0x00000004,
PRIV_FLAGS_USES_ION = 0x00000008,
PRIV_FLAGS_USES_ASHMEM = 0x00000010,
PRIV_FLAGS_NEEDS_FLUSH = 0x00000020,
PRIV_FLAGS_DO_NOT_FLUSH = 0x00000040,
PRIV_FLAGS_SW_LOCK = 0x00000080,
PRIV_FLAGS_NONCONTIGUOUS_MEM = 0x00000100,
// Set by HWC when storing the handle
PRIV_FLAGS_HWC_LOCK = 0x00000200,
PRIV_FLAGS_SECURE_BUFFER = 0x00000400,
// For explicit synchronization
PRIV_FLAGS_UNSYNCHRONIZED = 0x00000800,
// Not mapped in userspace
PRIV_FLAGS_NOT_MAPPED = 0x00001000,
// Display on external only
PRIV_FLAGS_EXTERNAL_ONLY = 0x00002000,
// Display only this buffer on external
PRIV_FLAGS_EXTERNAL_BLOCK = 0x00004000,
// Display this buffer on external as close caption
PRIV_FLAGS_EXTERNAL_CC = 0x00008000,
PRIV_FLAGS_VIDEO_ENCODER = 0x00010000,
PRIV_FLAGS_CAMERA_WRITE = 0x00020000,
PRIV_FLAGS_CAMERA_READ = 0x00040000,
PRIV_FLAGS_HW_COMPOSER = 0x00080000,
PRIV_FLAGS_HW_TEXTURE = 0x00100000,
PRIV_FLAGS_ITU_R_601 = 0x00200000,
PRIV_FLAGS_ITU_R_601_FR = 0x00400000,
PRIV_FLAGS_ITU_R_709 = 0x00800000,
};
// file-descriptors
int fd;
int fd_metadata; // fd for the meta-data
// ints
int magic;
int flags;
int size;
int offset;
int bufferType;
int base;
int offset_metadata;
// The gpu address mapped into the mmu.
int gpuaddr;
int format;
int width;
int height;
int base_metadata;
#ifdef __cplusplus
static const int sNumInts = 12;
static const int sNumFds = 2;
static const int sMagic = 'gmsm';
private_handle_t(int fd, int size, int flags, int bufferType,
int format,int width, int height, int eFd = -1,
int eOffset = 0, int eBase = 0) :
fd(fd), fd_metadata(eFd), magic(sMagic),
flags(flags), size(size), offset(0), bufferType(bufferType),
base(0), offset_metadata(eOffset), gpuaddr(0),
format(format), width(width), height(height),
base_metadata(eBase)
{
version = sizeof(native_handle);
numInts = sNumInts;
numFds = sNumFds;
}
~private_handle_t() {
magic = 0;
}
bool usesPhysicallyContiguousMemory() {
return (flags & PRIV_FLAGS_USES_PMEM) != 0;
}
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)
{
ALOGD("Invalid gralloc handle (at %p): "
"ver(%d/%d) ints(%d/%d) fds(%d/%d) magic(%c%c%c%c/%c%c%c%c)",
h,
h ? h->version : -1, sizeof(native_handle),
h ? h->numInts : -1, sNumInts,
h ? h->numFds : -1, sNumFds,
hnd ? (((hnd->magic >> 24) & 0xFF)?
((hnd->magic >> 24) & 0xFF) : '-') : '?',
hnd ? (((hnd->magic >> 16) & 0xFF)?
((hnd->magic >> 16) & 0xFF) : '-') : '?',
hnd ? (((hnd->magic >> 8) & 0xFF)?
((hnd->magic >> 8) & 0xFF) : '-') : '?',
hnd ? (((hnd->magic >> 0) & 0xFF)?
((hnd->magic >> 0) & 0xFF) : '-') : '?',
(sMagic >> 24) & 0xFF,
(sMagic >> 16) & 0xFF,
(sMagic >> 8) & 0xFF,
(sMagic >> 0) & 0xFF);
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_ */