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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>
*/
#define _BSD_SOURCE
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "gbm.h"
#include "gbmint.h"
#include "common.h"
#include "backend.h"
#define ARRAY_SIZE(a) (sizeof(a)/sizeof((a)[0]))
struct gbm_device *devices[16];
static int device_num = 0;
GBM_EXPORT int
gbm_device_get_fd(struct gbm_device *gbm)
{
return gbm->fd;
}
/* FIXME: maybe superfluous, use udev subclass from the fd? */
GBM_EXPORT const char *
gbm_device_get_backend_name(struct gbm_device *gbm)
{
return gbm->name;
}
int
gbm_device_is_format_supported(struct gbm_device *gbm,
enum gbm_bo_format format,
uint32_t usage)
{
return gbm->is_format_supported(gbm, format, usage);
}
GBM_EXPORT void
gbm_device_destroy(struct gbm_device *gbm)
{
gbm->refcount--;
if (gbm->refcount == 0)
gbm->destroy(gbm);
}
GBM_EXPORT struct gbm_device *
_gbm_mesa_get_device(int fd)
{
struct gbm_device *gbm = NULL;
struct stat buf;
dev_t dev;
int i;
if (fd < 0 || fstat(fd, &buf) < 0 || !S_ISCHR(buf.st_mode)) {
fprintf(stderr, "_gbm_mesa_get_device: invalid fd: %d\n", fd);
return NULL;
}
for (i = 0; i < device_num; ++i) {
dev = devices[i]->stat.st_rdev;
if (major(dev) == major(buf.st_rdev) &&
minor(dev) == minor(buf.st_rdev)) {
gbm = devices[i];
gbm->refcount++;
break;
}
}
return gbm;
}
GBM_EXPORT struct gbm_device *
gbm_create_device(int fd)
{
struct gbm_device *gbm = NULL;
struct stat buf;
if (fd < 0 || fstat(fd, &buf) < 0 || !S_ISCHR(buf.st_mode)) {
fprintf(stderr, "gbm_create_device: invalid fd: %d\n", fd);
return NULL;
}
if (device_num == 0)
memset(devices, 0, sizeof devices);
gbm = _gbm_create_device(fd);
if (gbm == NULL)
return NULL;
gbm->dummy = gbm_create_device;
gbm->stat = buf;
gbm->refcount = 1;
if (device_num < ARRAY_SIZE(devices)-1)
devices[device_num++] = gbm;
return gbm;
}
GBM_EXPORT unsigned int
gbm_bo_get_width(struct gbm_bo *bo)
{
return bo->width;
}
GBM_EXPORT unsigned int
gbm_bo_get_height(struct gbm_bo *bo)
{
return bo->height;
}
GBM_EXPORT uint32_t
gbm_bo_get_pitch(struct gbm_bo *bo)
{
return bo->pitch;
}
GBM_EXPORT union gbm_bo_handle
gbm_bo_get_handle(struct gbm_bo *bo)
{
return bo->handle;
}
GBM_EXPORT void
gbm_bo_destroy(struct gbm_bo *bo)
{
bo->gbm->bo_destroy(bo);
}
GBM_EXPORT struct gbm_bo *
gbm_bo_create(struct gbm_device *gbm,
uint32_t width, uint32_t height,
enum gbm_bo_format format, uint32_t usage)
{
if (width == 0 || height == 0)
return NULL;
if (usage & GBM_BO_USE_CURSOR_64X64 &&
(width != 64 || height != 64))
return NULL;
return gbm->bo_create(gbm, width, height, format, usage);
}
GBM_EXPORT struct gbm_bo *
gbm_bo_create_from_egl_image(struct gbm_device *gbm,
void *egl_dpy, void *egl_image,
uint32_t width, uint32_t height,
uint32_t usage)
{
if (width == 0 || height == 0)
return NULL;
return gbm->bo_create_from_egl_image(gbm, egl_dpy, egl_image,
width, height, usage);
}
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