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/*
* Copyright (c) 2011-2018, The Linux Foundation. All rights reserved.
* Not a Contribution
*
* 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 __GR_PRIV_HANDLE_H__
#define __GR_PRIV_HANDLE_H__
#include <errno.h>
#include <log/log.h>
#include <hardware/gralloc.h>
#include <hardware/gralloc1.h>
#include <cinttypes>
#define GRALLOC1_FUNCTION_PERFORM 0x00001000
#define DBG_HANDLE false
typedef gralloc1_error_t (*GRALLOC1_PFN_PERFORM)(gralloc1_device_t *device, int operation, ...);
#define PRIV_HANDLE_CONST(exp) static_cast<const private_handle_t *>(exp)
#pragma pack(push, 4)
struct private_handle_t : public native_handle_t {
enum {
PRIV_FLAGS_FRAMEBUFFER = 0x00000001,
PRIV_FLAGS_USES_ION = 0x00000008,
PRIV_FLAGS_NEEDS_FLUSH = 0x00000020,
PRIV_FLAGS_INTERNAL_ONLY = 0x00000040,
PRIV_FLAGS_NON_CPU_WRITER = 0x00000080,
PRIV_FLAGS_CACHED = 0x00000200,
PRIV_FLAGS_SECURE_BUFFER = 0x00000400,
PRIV_FLAGS_EXTERNAL_ONLY = 0x00002000,
PRIV_FLAGS_PROTECTED_BUFFER = 0x00004000,
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, // Unused from display
PRIV_FLAGS_ITU_R_601_FR = 0x00400000, // Unused from display
PRIV_FLAGS_ITU_R_709 = 0x00800000, // Unused from display
PRIV_FLAGS_SECURE_DISPLAY = 0x01000000,
PRIV_FLAGS_TILE_RENDERED = 0x02000000,
PRIV_FLAGS_CPU_RENDERED = 0x04000000,
PRIV_FLAGS_UBWC_ALIGNED = 0x08000000,
PRIV_FLAGS_DISP_CONSUMER = 0x10000000,
PRIV_FLAGS_CLIENT_ALLOCATED = 0x20000000, // Ion buffer allocated outside of gralloc
};
// file-descriptors dup'd over IPC
int fd;
int fd_metadata;
// values sent over IPC
int magic;
int flags;
int width; // holds width of the actual buffer allocated
int height; // holds height of the actual buffer allocated
int unaligned_width; // holds width client asked to allocate
int unaligned_height; // holds height client asked to allocate
int format;
int buffer_type;
unsigned int layer_count;
uint64_t id;
uint64_t usage;
unsigned int size;
unsigned int offset;
unsigned int offset_metadata;
uint64_t base;
uint64_t base_metadata;
uint64_t gpuaddr;
static const int kNumFds = 2;
static const int kMagic = 'gmsm';
static inline int NumInts() {
return ((sizeof(private_handle_t) - sizeof(native_handle_t)) / sizeof(int)) - kNumFds;
}
private_handle_t(int fd, int meta_fd, int flags, int width, int height, int uw, int uh,
int format, int buf_type, unsigned int size, uint64_t usage = 0)
: fd(fd),
fd_metadata(meta_fd),
magic(kMagic),
flags(flags),
width(width),
height(height),
unaligned_width(uw),
unaligned_height(uh),
format(format),
buffer_type(buf_type),
layer_count(1),
id(0),
usage(usage),
size(size),
offset(0),
offset_metadata(0),
base(0),
base_metadata(0),
gpuaddr(0) {
version = static_cast<int>(sizeof(native_handle));
numInts = NumInts();
numFds = kNumFds;
}
// Legacy constructor used by some clients
private_handle_t(int fd, unsigned int size, int usage, int buf_type, int format, int w, int h)
: private_handle_t(fd, -1, PRIV_FLAGS_CLIENT_ALLOCATED, w, h, 0, 0, format, buf_type, size,
static_cast<uint64_t>(usage)) {}
~private_handle_t() {
magic = 0;
ALOGE_IF(DBG_HANDLE, "Deleting buffer handle %p", this);
}
static int validate(const native_handle *h) {
auto *hnd = static_cast<const private_handle_t *>(h);
if (!h || h->version != sizeof(native_handle) || h->numInts != NumInts() ||
h->numFds != kNumFds) {
ALOGE("Invalid gralloc handle (at %p): ver(%d/%zu) ints(%d/%d) fds(%d/%d) ",
h, h ? h->version : -1, sizeof(native_handle), h ? h->numInts : -1, NumInts(),
h ? h->numFds : -1, kNumFds);
return -EINVAL;
}
if (hnd->magic != kMagic) {
ALOGE("magic(%c%c%c%c/%c%c%c%c)",
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) : '-') : '?',
(kMagic >> 24) & 0xFF, (kMagic >> 16) & 0xFF, (kMagic >> 8) & 0xFF, (kMagic >> 0) & 0xFF);
return -EINVAL;
}
return 0;
}
static void Dump(const private_handle_t *hnd) {
ALOGD("handle id:%" PRIu64
" wxh:%dx%d uwxuh:%dx%d size: %d fd:%d fd_meta:%d flags:0x%x "
"usage:0x%" PRIx64 " format:0x%x layer_count: %d",
hnd->id, hnd->width, hnd->height, hnd->unaligned_width, hnd->unaligned_height, hnd->size,
hnd->fd, hnd->fd_metadata, hnd->flags, hnd->usage, hnd->format, hnd->layer_count);
}
int GetUnalignedWidth() const { return unaligned_width; }
int GetUnalignedHeight() const { return unaligned_height; }
int GetColorFormat() const { return format; }
unsigned int GetLayerCount() const { return layer_count; }
int GetStride() const {
// In handle we currently store aligned width after allocation.
return width;
}
uint64_t GetUsage() const { return usage; }
uint64_t GetBackingstore() const { return id; }
};
#pragma pack(pop)
#endif // __GR_PRIV_HANDLE_H__
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