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/*
* Copyright © 2011 Intel Corporation
*
* 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 (including the next
* paragraph) 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.
*
* Authors:
* Benjamin Franzke <benjaminfranzke@googlemail.com>
*/
#ifndef INTERNAL_H_
#define INTERNAL_H_
#include "gbm.h"
#include <sys/stat.h>
/* GCC visibility */
#if defined(__GNUC__)
#define GBM_EXPORT __attribute__ ((visibility("default")))
#else
#define GBM_EXPORT
#endif
/**
* \file gbmint.h
* \brief Internal implementation details of gbm
*/
/**
* The device used for the memory allocation.
*
* The members of this structure should be not accessed directly
*/
struct gbm_device {
/* Hack to make a gbm_device detectable by its first element. */
struct gbm_device *(*dummy)(int);
int fd;
const char *name;
unsigned int refcount;
struct stat stat;
void (*destroy)(struct gbm_device *gbm);
int (*is_format_supported)(struct gbm_device *gbm,
uint32_t format,
uint32_t usage);
int (*get_format_modifier_plane_count)(struct gbm_device *device,
uint32_t format,
uint64_t modifier);
struct gbm_bo *(*bo_create)(struct gbm_device *gbm,
uint32_t width, uint32_t height,
uint32_t format,
uint32_t usage,
const uint64_t *modifiers,
const unsigned int count);
struct gbm_bo *(*bo_import)(struct gbm_device *gbm, uint32_t type,
void *buffer, uint32_t usage);
void *(*bo_map)(struct gbm_bo *bo,
uint32_t x, uint32_t y,
uint32_t width, uint32_t height,
uint32_t flags, uint32_t *stride,
void **map_data);
void (*bo_unmap)(struct gbm_bo *bo, void *map_data);
int (*bo_write)(struct gbm_bo *bo, const void *buf, size_t data);
int (*bo_get_fd)(struct gbm_bo *bo);
int (*bo_get_planes)(struct gbm_bo *bo);
union gbm_bo_handle (*bo_get_handle)(struct gbm_bo *bo, int plane);
uint32_t (*bo_get_stride)(struct gbm_bo *bo, int plane);
uint32_t (*bo_get_offset)(struct gbm_bo *bo, int plane);
uint64_t (*bo_get_modifier)(struct gbm_bo *bo);
void (*bo_destroy)(struct gbm_bo *bo);
struct gbm_surface *(*surface_create)(struct gbm_device *gbm,
uint32_t width, uint32_t height,
uint32_t format, uint32_t flags,
const uint64_t *modifiers,
const unsigned count);
struct gbm_bo *(*surface_lock_front_buffer)(struct gbm_surface *surface);
void (*surface_release_buffer)(struct gbm_surface *surface,
struct gbm_bo *bo);
int (*surface_has_free_buffers)(struct gbm_surface *surface);
void (*surface_destroy)(struct gbm_surface *surface);
};
/**
* The allocated buffer object.
*
* The members in this structure should not be accessed directly.
*/
struct gbm_bo {
struct gbm_device *gbm;
uint32_t width;
uint32_t height;
uint32_t stride;
uint32_t format;
union gbm_bo_handle handle;
void *user_data;
void (*destroy_user_data)(struct gbm_bo *, void *);
};
struct gbm_surface {
struct gbm_device *gbm;
uint32_t width;
uint32_t height;
uint32_t format;
uint32_t flags;
struct {
uint64_t *modifiers;
unsigned count;
};
};
struct gbm_backend {
const char *backend_name;
struct gbm_device *(*create_device)(int fd);
};
uint32_t
gbm_format_canonicalize(uint32_t gbm_format);
#endif
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