native_drm.c revision a23bf646bdeb72381e7f2bc784d47748cdd7d1ce
15c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)/* 25c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Mesa 3-D graphics library 35c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Version: 7.11 45c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 55c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Copyright (C) 2011 Benjamin Franzke <benjaminfranzke@googlemail.com> 65c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 75c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Permission is hereby granted, free of charge, to any person obtaining a 85c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * copy of this software and associated documentation files (the "Software"), 95c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * to deal in the Software without restriction, including without limitation 105c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * the rights to use, copy, modify, merge, publish, distribute, sublicense, 115c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * and/or sell copies of the Software, and to permit persons to whom the 125c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * Software is furnished to do so, subject to the following conditions: 135c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 145c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * The above copyright notice and this permission notice shall be included 155c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * in all copies or substantial portions of the Software. 165c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * 175c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 185c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 195c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 205c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 215c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 225c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 235c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) * DEALINGS IN THE SOFTWARE. 245c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) */ 255c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 265c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "util/u_memory.h" 275c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "util/u_inlines.h" 285c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 295c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "pipe/p_compiler.h" 305c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "pipe/p_screen.h" 315c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "pipe/p_context.h" 325c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "pipe/p_state.h" 335c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "state_tracker/drm_driver.h" 345c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles) 355c87bf8b86a7c82ef50fb7a89697d8e02e2553beTorne (Richard Coles)#include "egllog.h" 36#include <errno.h> 37 38#include "native_wayland.h" 39 40#include <wayland-client.h> 41#include "wayland-drm-client-protocol.h" 42#include "wayland-egl-priv.h" 43 44#include "common/native_wayland_drm_bufmgr_helper.h" 45 46#include <xf86drm.h> 47#include <sys/types.h> 48#include <sys/stat.h> 49#include <fcntl.h> 50 51struct wayland_drm_display { 52 struct wayland_display base; 53 54 struct native_event_handler *event_handler; 55 56 struct wl_drm *wl_drm; 57 struct wl_drm *wl_server_drm; /* for EGL_WL_bind_wayland_display */ 58 int fd; 59 char *device_name; 60 boolean authenticated; 61}; 62 63static INLINE struct wayland_drm_display * 64wayland_drm_display(const struct native_display *ndpy) 65{ 66 return (struct wayland_drm_display *) ndpy; 67} 68 69static void 70sync_callback(void *data) 71{ 72 int *done = data; 73 74 *done = 1; 75} 76 77static void 78force_roundtrip(struct wl_display *display) 79{ 80 int done = 0; 81 82 wl_display_sync_callback(display, sync_callback, &done); 83 wl_display_iterate(display, WL_DISPLAY_WRITABLE); 84 while (!done) 85 wl_display_iterate(display, WL_DISPLAY_READABLE); 86} 87 88static void 89wayland_drm_display_destroy(struct native_display *ndpy) 90{ 91 struct wayland_drm_display *drmdpy = wayland_drm_display(ndpy); 92 93 if (drmdpy->fd) 94 close(drmdpy->fd); 95 if (drmdpy->wl_drm) 96 wl_drm_destroy(drmdpy->wl_drm); 97 if (drmdpy->device_name) 98 FREE(drmdpy->device_name); 99 if (drmdpy->base.config) 100 FREE(drmdpy->base.config); 101 if (drmdpy->base.own_dpy) 102 wl_display_destroy(drmdpy->base.dpy); 103 104 ndpy_uninit(ndpy); 105 106 FREE(drmdpy); 107} 108 109static struct wl_buffer * 110wayland_create_drm_buffer(struct wayland_display *display, 111 struct wayland_surface *surface, 112 enum native_attachment attachment) 113{ 114 struct wayland_drm_display *drmdpy = (struct wayland_drm_display *) display; 115 struct pipe_screen *screen = drmdpy->base.base.screen; 116 struct pipe_resource *resource; 117 struct winsys_handle wsh; 118 uint width, height; 119 struct wl_visual *visual; 120 121 resource = resource_surface_get_single_resource(surface->rsurf, attachment); 122 resource_surface_get_size(surface->rsurf, &width, &height); 123 124 wsh.type = DRM_API_HANDLE_TYPE_SHARED; 125 screen->resource_get_handle(screen, resource, &wsh); 126 127 pipe_resource_reference(&resource, NULL); 128 129 switch (surface->type) { 130 case WL_WINDOW_SURFACE: 131 visual = surface->win->visual; 132 break; 133 case WL_PIXMAP_SURFACE: 134 visual = surface->pix->visual; 135 break; 136 default: 137 return NULL; 138 } 139 140 return wl_drm_create_buffer(drmdpy->wl_drm, wsh.handle, 141 width, height, wsh.stride, visual); 142} 143 144static void 145drm_handle_device(void *data, struct wl_drm *drm, const char *device) 146{ 147 struct wayland_drm_display *drmdpy = data; 148 drm_magic_t magic; 149 150 drmdpy->device_name = strdup(device); 151 if (!drmdpy->device_name) 152 return; 153 154 drmdpy->fd = open(drmdpy->device_name, O_RDWR); 155 if (drmdpy->fd == -1) { 156 _eglLog(_EGL_WARNING, "wayland-egl: could not open %s (%s)", 157 drmdpy->device_name, strerror(errno)); 158 return; 159 } 160 161 drmGetMagic(drmdpy->fd, &magic); 162 wl_drm_authenticate(drmdpy->wl_drm, magic); 163} 164 165static void 166drm_handle_authenticated(void *data, struct wl_drm *drm) 167{ 168 struct wayland_drm_display *drmdpy = data; 169 170 drmdpy->authenticated = true; 171} 172 173static const struct wl_drm_listener drm_listener = { 174 drm_handle_device, 175 drm_handle_authenticated 176}; 177 178static boolean 179wayland_drm_display_init_screen(struct native_display *ndpy) 180{ 181 struct wayland_drm_display *drmdpy = wayland_drm_display(ndpy); 182 uint32_t id; 183 184 id = wl_display_get_global(drmdpy->base.dpy, "wl_drm", 1); 185 if (id == 0) 186 force_roundtrip(drmdpy->base.dpy); 187 id = wl_display_get_global(drmdpy->base.dpy, "wl_drm", 1); 188 if (id == 0) 189 return FALSE; 190 191 drmdpy->wl_drm = wl_drm_create(drmdpy->base.dpy, id, 1); 192 if (!drmdpy->wl_drm) 193 return FALSE; 194 195 wl_drm_add_listener(drmdpy->wl_drm, &drm_listener, drmdpy); 196 force_roundtrip(drmdpy->base.dpy); 197 if (drmdpy->fd == -1) 198 return FALSE; 199 200 force_roundtrip(drmdpy->base.dpy); 201 if (!drmdpy->authenticated) 202 return FALSE; 203 204 drmdpy->base.base.screen = 205 drmdpy->event_handler->new_drm_screen(&drmdpy->base.base, 206 NULL, drmdpy->fd); 207 if (!drmdpy->base.base.screen) { 208 _eglLog(_EGL_WARNING, "failed to create DRM screen"); 209 return FALSE; 210 } 211 212 return TRUE; 213} 214 215static struct pipe_resource * 216wayland_drm_display_import_buffer(struct native_display *ndpy, 217 const struct pipe_resource *templ, 218 void *buf) 219{ 220 return ndpy->screen->resource_from_handle(ndpy->screen, 221 templ, (struct winsys_handle *) buf); 222} 223 224static boolean 225wayland_drm_display_export_buffer(struct native_display *ndpy, 226 struct pipe_resource *res, 227 void *buf) 228{ 229 return ndpy->screen->resource_get_handle(ndpy->screen, 230 res, (struct winsys_handle *) buf); 231} 232 233static struct native_display_buffer wayland_drm_display_buffer = { 234 wayland_drm_display_import_buffer, 235 wayland_drm_display_export_buffer 236}; 237 238static int 239wayland_drm_display_authenticate(void *user_data, uint32_t magic) 240{ 241 struct native_display *ndpy = user_data; 242 struct wayland_drm_display *drmdpy = wayland_drm_display(ndpy); 243 boolean current_authenticate, authenticated; 244 245 current_authenticate = drmdpy->authenticated; 246 247 wl_drm_authenticate(drmdpy->wl_drm, magic); 248 force_roundtrip(drmdpy->base.dpy); 249 authenticated = drmdpy->authenticated; 250 251 drmdpy->authenticated = current_authenticate; 252 253 return authenticated ? 0 : -1; 254} 255 256static struct wayland_drm_callbacks wl_drm_callbacks = { 257 wayland_drm_display_authenticate, 258 egl_g3d_wl_drm_helper_reference_buffer, 259 egl_g3d_wl_drm_helper_unreference_buffer 260}; 261 262static boolean 263wayland_drm_display_bind_wayland_display(struct native_display *ndpy, 264 struct wl_display *wl_dpy) 265{ 266 struct wayland_drm_display *drmdpy = wayland_drm_display(ndpy); 267 268 if (drmdpy->wl_server_drm) 269 return FALSE; 270 271 drmdpy->wl_server_drm = 272 wayland_drm_init(wl_dpy, drmdpy->device_name, 273 &wl_drm_callbacks, ndpy); 274 275 if (!drmdpy->wl_server_drm) 276 return FALSE; 277 278 return TRUE; 279} 280 281static boolean 282wayland_drm_display_unbind_wayland_display(struct native_display *ndpy, 283 struct wl_display *wl_dpy) 284{ 285 struct wayland_drm_display *drmdpy = wayland_drm_display(ndpy); 286 287 if (!drmdpy->wl_server_drm) 288 return FALSE; 289 290 wayland_drm_uninit(drmdpy->wl_server_drm); 291 drmdpy->wl_server_drm = NULL; 292 293 return TRUE; 294} 295 296static struct native_display_wayland_bufmgr wayland_drm_display_wayland_bufmgr = { 297 wayland_drm_display_bind_wayland_display, 298 wayland_drm_display_unbind_wayland_display, 299 egl_g3d_wl_drm_common_wl_buffer_get_resource 300}; 301 302 303struct wayland_display * 304wayland_create_drm_display(struct wl_display *dpy, 305 struct native_event_handler *event_handler, 306 void *user_data) 307{ 308 struct wayland_drm_display *drmdpy; 309 310 drmdpy = CALLOC_STRUCT(wayland_drm_display); 311 if (!drmdpy) 312 return NULL; 313 314 drmdpy->event_handler = event_handler; 315 drmdpy->base.base.user_data = user_data; 316 317 drmdpy->base.dpy = dpy; 318 if (!drmdpy->base.dpy) { 319 wayland_drm_display_destroy(&drmdpy->base.base); 320 return NULL; 321 } 322 323 if (!wayland_drm_display_init_screen(&drmdpy->base.base)) { 324 wayland_drm_display_destroy(&drmdpy->base.base); 325 return NULL; 326 } 327 drmdpy->base.base.destroy = wayland_drm_display_destroy; 328 drmdpy->base.base.buffer = &wayland_drm_display_buffer; 329 drmdpy->base.base.wayland_bufmgr = &wayland_drm_display_wayland_bufmgr; 330 331 drmdpy->base.create_buffer = wayland_create_drm_buffer; 332 333 return &drmdpy->base; 334} 335 336/* vim: set sw=3 ts=8 sts=3 expandtab: */ 337