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/*
* Copyright (C) 2010-2011 Chia-I Wu <olvaffe@gmail.com>
* Copyright (C) 2010-2011 LunarG Inc.
* Copyright (C) 2016 Linaro, Ltd., Rob Herring <robh@kernel.org>
* Copyright (C) 2018 Collabora, Robert Foss <robert.foss@collabora.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef __ANDROID_GRALLOC_HANDLE_H__
#define __ANDROID_GRALLOC_HANDLE_H__
#include <cutils/native_handle.h>
#include <stdint.h>
/* support users of drm_gralloc/gbm_gralloc */
#define gralloc_gbm_handle_t gralloc_handle_t
#define gralloc_drm_handle_t gralloc_handle_t
struct gralloc_handle_t {
native_handle_t base;
/* dma-buf file descriptor
* Must be located first since, native_handle_t is allocated
* using native_handle_create(), which allocates space for
* sizeof(native_handle_t) + sizeof(int) * (numFds + numInts)
* numFds = GRALLOC_HANDLE_NUM_FDS
* numInts = GRALLOC_HANDLE_NUM_INTS
* Where numFds represents the number of FDs and
* numInts represents the space needed for the
* remainder of this struct.
* And the FDs are expected to be found first following
* native_handle_t.
*/
int prime_fd;
/* api variables */
uint32_t magic; /* differentiate between allocator impls */
uint32_t version; /* api version */
uint32_t width; /* width of buffer in pixels */
uint32_t height; /* height of buffer in pixels */
uint32_t format; /* pixel format (Android) */
uint32_t usage; /* android libhardware usage flags */
uint32_t stride; /* the stride in bytes */
int data_owner; /* owner of data (for validation) */
uint64_t modifier __attribute__((aligned(8))); /* buffer modifiers */
union {
void *data; /* pointer to struct gralloc_gbm_bo_t */
uint64_t reserved;
} __attribute__((aligned(8)));
};
#define GRALLOC_HANDLE_VERSION 4
#define GRALLOC_HANDLE_MAGIC 0x60585350
#define GRALLOC_HANDLE_NUM_FDS 1
#define GRALLOC_HANDLE_NUM_INTS ( \
((sizeof(struct gralloc_handle_t) - sizeof(native_handle_t))/sizeof(int)) \
- GRALLOC_HANDLE_NUM_FDS)
static inline struct gralloc_handle_t *gralloc_handle(buffer_handle_t handle)
{
return (struct gralloc_handle_t *)handle;
}
/**
* Create a buffer handle.
*/
static inline native_handle_t *gralloc_handle_create(int32_t width,
int32_t height,
int32_t hal_format,
int32_t usage)
{
struct gralloc_handle_t *handle;
native_handle_t *nhandle = native_handle_create(GRALLOC_HANDLE_NUM_FDS,
GRALLOC_HANDLE_NUM_INTS);
if (!nhandle)
return NULL;
handle = gralloc_handle(nhandle);
handle->magic = GRALLOC_HANDLE_MAGIC;
handle->version = GRALLOC_HANDLE_VERSION;
handle->width = width;
handle->height = height;
handle->format = hal_format;
handle->usage = usage;
handle->prime_fd = -1;
return nhandle;
}
#endif
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