egl/wayland-egl: Fix for segfault in dri2_wl_destroy_surface.
[mesa.git] / src / egl / wayland / wayland-egl / wayland-egl.c
1 /*
2 * Copyright © 2011 Kristian Høgsberg
3 * Copyright © 2011 Benjamin Franzke
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
20 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
24 *
25 * Authors:
26 * Kristian Høgsberg <krh@bitplanet.net>
27 * Benjamin Franzke <benjaminfranzke@googlemail.com>
28 */
29
30 #include <stdlib.h>
31
32 #include <wayland-client.h>
33 #include "wayland-egl.h"
34 #include "wayland-egl-priv.h"
35
36 WL_EGL_EXPORT void
37 wl_egl_window_resize(struct wl_egl_window *egl_window,
38 int width, int height,
39 int dx, int dy)
40 {
41 if (width <= 0 || height <= 0)
42 return;
43
44 egl_window->width = width;
45 egl_window->height = height;
46 egl_window->dx = dx;
47 egl_window->dy = dy;
48
49 if (egl_window->resize_callback)
50 egl_window->resize_callback(egl_window, egl_window->private);
51 }
52
53 WL_EGL_EXPORT struct wl_egl_window *
54 wl_egl_window_create(struct wl_surface *surface,
55 int width, int height)
56 {
57 struct wl_egl_window *egl_window;
58
59 if (width <= 0 || height <= 0)
60 return NULL;
61
62 egl_window = malloc(sizeof *egl_window);
63 if (!egl_window)
64 return NULL;
65
66 egl_window->surface = surface;
67 egl_window->private = NULL;
68 egl_window->resize_callback = NULL;
69 egl_window->destroy_window_callback = NULL;
70 wl_egl_window_resize(egl_window, width, height, 0, 0);
71 egl_window->attached_width = 0;
72 egl_window->attached_height = 0;
73
74 return egl_window;
75 }
76
77 WL_EGL_EXPORT void
78 wl_egl_window_destroy(struct wl_egl_window *egl_window)
79 {
80 if (egl_window->destroy_window_callback)
81 egl_window->destroy_window_callback(egl_window->private);
82 free(egl_window);
83 }
84
85 WL_EGL_EXPORT void
86 wl_egl_window_get_attached_size(struct wl_egl_window *egl_window,
87 int *width, int *height)
88 {
89 if (width)
90 *width = egl_window->attached_width;
91 if (height)
92 *height = egl_window->attached_height;
93 }