1 /*
2  * Mesa 3-D graphics library
3  * Version:  7.11
4  *
5  * Copyright (C) 2011 Benjamin Franzke <benjaminfranzke@googlemail.com>
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a
8  * copy of this software and associated documentation files (the "Software"),
9  * to deal in the Software without restriction, including without limitation
10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11  * and/or sell copies of the Software, and to permit persons to whom the
12  * Software is furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included
15  * in all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23  * DEALINGS IN THE SOFTWARE.
24  */
25 
26 #include "util/u_memory.h"
27 #include "util/u_inlines.h"
28 
29 #include "pipe/p_compiler.h"
30 #include "pipe/p_screen.h"
31 #include "pipe/p_context.h"
32 #include "pipe/p_state.h"
33 
34 #include "sw/wayland/wayland_sw_winsys.h"
35 
36 #include "egllog.h"
37 
38 #include "native_wayland.h"
39 
40 #include <wayland-client.h>
41 #include "wayland-egl-priv.h"
42 
43 #include <sys/types.h>
44 #include <sys/stat.h>
45 #include <fcntl.h>
46 
47 struct wayland_shm_display {
48    struct wayland_display base;
49 
50    const struct native_event_handler *event_handler;
51    struct wl_shm *wl_shm;
52 };
53 
54 static INLINE struct wayland_shm_display *
wayland_shm_display(const struct native_display * ndpy)55 wayland_shm_display(const struct native_display *ndpy)
56 {
57    return (struct wayland_shm_display *) ndpy;
58 }
59 
60 
61 static void
wayland_shm_display_destroy(struct native_display * ndpy)62 wayland_shm_display_destroy(struct native_display *ndpy)
63 {
64    struct wayland_shm_display *shmdpy = wayland_shm_display(ndpy);
65 
66    if (shmdpy->base.configs)
67       FREE(shmdpy->base.configs);
68    if (shmdpy->base.own_dpy)
69       wl_display_disconnect(shmdpy->base.dpy);
70 
71    ndpy_uninit(ndpy);
72 
73    FREE(shmdpy);
74 }
75 
76 static struct wl_buffer *
wayland_create_shm_buffer(struct wayland_display * display,struct wayland_surface * surface,enum native_attachment attachment)77 wayland_create_shm_buffer(struct wayland_display *display,
78                           struct wayland_surface *surface,
79                           enum native_attachment attachment)
80 {
81    struct wayland_shm_display *shmdpy = (struct wayland_shm_display *) display;
82    struct pipe_screen *screen = shmdpy->base.base.screen;
83    struct pipe_resource *resource;
84    struct winsys_handle wsh;
85    uint width, height;
86    enum wl_shm_format format;
87    struct wl_buffer *buffer;
88    struct wl_shm_pool *pool;
89 
90    resource = resource_surface_get_single_resource(surface->rsurf, attachment);
91    resource_surface_get_size(surface->rsurf, &width, &height);
92 
93    screen->resource_get_handle(screen, resource, &wsh);
94 
95    pipe_resource_reference(&resource, NULL);
96 
97    switch (surface->color_format) {
98    case PIPE_FORMAT_B8G8R8A8_UNORM:
99       format = WL_SHM_FORMAT_ARGB8888;
100       break;
101    case PIPE_FORMAT_B8G8R8X8_UNORM:
102       format = WL_SHM_FORMAT_XRGB8888;
103       break;
104    default:
105       return NULL;
106       break;
107    }
108 
109    pool = wl_shm_create_pool(shmdpy->wl_shm, wsh.fd, wsh.size);
110    buffer = wl_shm_pool_create_buffer(pool, 0, width, height,
111                                       wsh.stride, format);
112    wl_shm_pool_destroy(pool);
113 
114    return buffer;
115 }
116 
117 static void
shm_handle_format(void * data,struct wl_shm * shm,uint32_t format)118 shm_handle_format(void *data, struct wl_shm *shm, uint32_t format)
119 {
120    struct wayland_shm_display *shmdpy = data;
121 
122    switch (format) {
123    case WL_SHM_FORMAT_ARGB8888:
124       shmdpy->base.formats |= HAS_ARGB8888;
125       break;
126    case WL_SHM_FORMAT_XRGB8888:
127       shmdpy->base.formats |= HAS_XRGB8888;
128       break;
129    }
130 }
131 
132 static const struct wl_shm_listener shm_listener = {
133    shm_handle_format
134 };
135 
136 static void
registry_handle_global(void * data,struct wl_registry * registry,uint32_t name,const char * interface,uint32_t version)137 registry_handle_global(void *data, struct wl_registry *registry, uint32_t name,
138                        const char *interface, uint32_t version)
139 {
140    struct wayland_shm_display *shmdpy = data;
141 
142    if (strcmp(interface, "wl_shm") == 0) {
143       shmdpy->wl_shm = wl_registry_bind(registry, name, &wl_shm_interface, 1);
144       wl_shm_add_listener(shmdpy->wl_shm, &shm_listener, shmdpy);
145    }
146 }
147 
148 static const struct wl_registry_listener registry_listener = {
149        registry_handle_global
150 };
151 
152 static boolean
wayland_shm_display_init_screen(struct native_display * ndpy)153 wayland_shm_display_init_screen(struct native_display *ndpy)
154 {
155    struct wayland_shm_display *shmdpy = wayland_shm_display(ndpy);
156    struct sw_winsys *winsys = NULL;
157 
158    shmdpy->base.queue = wl_display_create_queue(shmdpy->base.dpy);
159    shmdpy->base.registry = wl_display_get_registry(shmdpy->base.dpy);
160    wl_proxy_set_queue((struct wl_proxy *) shmdpy->base.registry,
161                       shmdpy->base.queue);
162    wl_registry_add_listener(shmdpy->base.registry, &registry_listener, shmdpy);
163    if (wayland_roundtrip(&shmdpy->base) < 0 || shmdpy->wl_shm == NULL)
164       return FALSE;
165 
166    if (shmdpy->base.formats == 0)
167       wl_display_roundtrip(shmdpy->base.dpy);
168    if (shmdpy->base.formats == 0)
169       return FALSE;
170 
171    winsys = wayland_create_sw_winsys(shmdpy->base.dpy);
172    if (!winsys)
173       return FALSE;
174 
175    shmdpy->base.base.screen =
176       shmdpy->event_handler->new_sw_screen(&shmdpy->base.base, winsys);
177 
178    if (!shmdpy->base.base.screen) {
179       _eglLog(_EGL_WARNING, "failed to create shm screen");
180       return FALSE;
181    }
182 
183    return TRUE;
184 }
185 
186 struct wayland_display *
wayland_create_shm_display(struct wl_display * dpy,const struct native_event_handler * event_handler)187 wayland_create_shm_display(struct wl_display *dpy,
188                            const struct native_event_handler *event_handler)
189 {
190    struct wayland_shm_display *shmdpy;
191 
192    shmdpy = CALLOC_STRUCT(wayland_shm_display);
193    if (!shmdpy)
194       return NULL;
195 
196    shmdpy->event_handler = event_handler;
197 
198    shmdpy->base.dpy = dpy;
199    if (!shmdpy->base.dpy) {
200       wayland_shm_display_destroy(&shmdpy->base.base);
201       return NULL;
202    }
203 
204    shmdpy->base.base.init_screen = wayland_shm_display_init_screen;
205    shmdpy->base.base.destroy = wayland_shm_display_destroy;
206    shmdpy->base.create_buffer = wayland_create_shm_buffer;
207 
208    return &shmdpy->base;
209 }
210 
211 /* vim: set sw=3 ts=8 sts=3 expandtab: */
212