w32tex
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cairo-drm-bo.c
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1 /* Cairo - a vector graphics library with display and print output
2  *
3  * Copyright © 2009 Chris Wilson
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it either under the terms of the GNU Lesser General Public
7  * License version 2.1 as published by the Free Software Foundation
8  * (the "LGPL") or, at your option, under the terms of the Mozilla
9  * Public License Version 1.1 (the "MPL"). If you do not alter this
10  * notice, a recipient may use your version of this file under either
11  * the MPL or the LGPL.
12  *
13  * You should have received a copy of the LGPL along with this library
14  * in the file COPYING-LGPL-2.1; if not, write to the Free Software
15  * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
16  * You should have received a copy of the MPL along with this library
17  * in the file COPYING-MPL-1.1
18  *
19  * The contents of this file are subject to the Mozilla Public License
20  * Version 1.1 (the "License"); you may not use this file except in
21  * compliance with the License. You may obtain a copy of the License at
22  * http://www.mozilla.org/MPL/
23  *
24  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
25  * OF ANY KIND, either express or implied. See the LGPL or the MPL for
26  * the specific language governing rights and limitations.
27  *
28  */
29 
30 #include "cairoint.h"
31 #include "cairo-drm-private.h"
32 #include "cairo-error-private.h"
33 
34 #include <sys/ioctl.h>
35 #include <errno.h>
36 #include <libdrm/drm.h>
37 
38 #define ERR_DEBUG(x) x
39 
42  cairo_drm_bo_t *bo,
43  uint32_t name)
44 {
45  struct drm_gem_open open;
46  int ret;
47 
48  open.name = name;
49  open.handle = 0;
50  open.size = 0;
51  do {
52  ret = ioctl (dev->fd, DRM_IOCTL_GEM_OPEN, &open);
53  } while (ret == -1 && errno == EINTR);
54  if (ret == -1) {
55  ERR_DEBUG((fprintf (stderr, "Failed to open bo for name %d: %s\n",
56  name, strerror (errno))));
58  }
59 
60  bo->name = name;
61  bo->size = open.size;
62  bo->handle = open.handle;
63 
64  return CAIRO_STATUS_SUCCESS;
65 }
66 
69  cairo_drm_bo_t *bo)
70 {
71  struct drm_gem_flink flink;
72  int ret;
73 
74  memset (&flink, 0, sizeof (flink));
75  flink.handle = bo->handle;
76  ret = ioctl (dev->fd, DRM_IOCTL_GEM_FLINK, &flink);
77  if (ret == -1) {
78  ERR_DEBUG((fprintf (stderr, "Failed to flink bo: %s\n",
79  strerror (errno))));
81  }
82 
83  bo->name = flink.name;
84 
85  return CAIRO_STATUS_SUCCESS;
86 }
87 
88 void
90  cairo_drm_bo_t *bo)
91 {
92  struct drm_gem_close close;
93  int ret;
94 
95  close.handle = bo->handle;
96  do {
97  ret = ioctl (dev->fd, DRM_IOCTL_GEM_CLOSE, &close);
98  } while (ret == -1 && errno == EINTR);
99 }
#define name
cairo_status_t _cairo_error(cairo_status_t status)
Definition: cairo-error.c:65
@ CAIRO_STATUS_SUCCESS
Definition: cairo.h:315
@ CAIRO_STATUS_NO_MEMORY
Definition: cairo.h:317
enum _cairo_status cairo_status_t
cairo_status_t _cairo_drm_bo_flink(const cairo_drm_device_t *dev, cairo_drm_bo_t *bo)
Definition: cairo-drm-bo.c:68
void _cairo_drm_bo_close(const cairo_drm_device_t *dev, cairo_drm_bo_t *bo)
Definition: cairo-drm-bo.c:89
cairo_status_t _cairo_drm_bo_open_for_name(const cairo_drm_device_t *dev, cairo_drm_bo_t *bo, uint32_t name)
Definition: cairo-drm-bo.c:41
#define ERR_DEBUG(x)
Definition: cairo-drm-bo.c:38
unsigned int uint32_t
Definition: stdint.h:80
int errno
#define open
Definition: win32lib.h:86
#define close
Definition: win32lib.h:63
static int ret
Definition: convert.c:72
#define fprintf
Definition: mendex.h:64
static char * strerror(int errnum)
Definition: error.c:56
bstring c int memset(void *s, int c, int length)