native_shm.c revision a5776ac0b8c015bf5d6a8513cefec5920895cc8e 
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
47struct 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
54static INLINE struct wayland_shm_display *
55wayland_shm_display(const struct native_display *ndpy)
56{
57   return (struct wayland_shm_display *) ndpy;
58}
59
60
61static void
62wayland_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
76static struct wl_buffer *
77wayland_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
117static void
118shm_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
132static const struct wl_shm_listener shm_listener = {
133   shm_handle_format
134};
135
136static void
137registry_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
148static const struct wl_registry_listener registry_listener = {
149       registry_handle_global
150};
151
152static boolean
153wayland_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
186struct wayland_display *
187wayland_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