native_wayland.c revision a0ad339915d8b5fdbebe82678fc81cbf1ec6682b 
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#include "state_tracker/drm_driver.h"
34#include "egllog.h"
35
36#include "native_wayland.h"
37
38static const struct native_event_handler *wayland_event_handler;
39
40static void
41sync_callback(void *data)
42{
43   int *done = data;
44
45   *done = 1;
46}
47
48static void
49force_roundtrip(struct wl_display *display)
50{
51   int done = 0;
52
53   wl_display_sync_callback(display, sync_callback, &done);
54   wl_display_iterate(display, WL_DISPLAY_WRITABLE);
55   while (!done)
56      wl_display_iterate(display, WL_DISPLAY_READABLE);
57}
58
59static const struct native_config **
60wayland_display_get_configs (struct native_display *ndpy, int *num_configs)
61{
62   struct wayland_display *display = wayland_display(ndpy);
63   const struct native_config **configs;
64   int i;
65
66   if (!display->config) {
67      struct native_config *nconf;
68      display->config = CALLOC(2, sizeof(*display->config));
69      if (!display->config)
70         return NULL;
71
72      for (i = 0; i < 2; ++i) {
73         nconf = &display->config[i].base;
74
75         nconf->buffer_mask =
76            (1 << NATIVE_ATTACHMENT_FRONT_LEFT) |
77            (1 << NATIVE_ATTACHMENT_BACK_LEFT);
78
79         nconf->window_bit = TRUE;
80         nconf->pixmap_bit = TRUE;
81      }
82
83      display->config[0].base.color_format = PIPE_FORMAT_B8G8R8A8_UNORM;
84      display->config[1].base.color_format = PIPE_FORMAT_B8G8R8X8_UNORM;
85   }
86
87   configs = MALLOC(2 * sizeof(*configs));
88   if (configs) {
89      configs[0] = &display->config[0].base;
90      configs[1] = &display->config[1].base;
91      if (num_configs)
92         *num_configs = 2;
93   }
94
95   return configs;
96}
97
98static int
99wayland_display_get_param(struct native_display *ndpy,
100                          enum native_param_type param)
101{
102   int val;
103
104   switch (param) {
105   case NATIVE_PARAM_USE_NATIVE_BUFFER:
106   case NATIVE_PARAM_PRESERVE_BUFFER:
107   case NATIVE_PARAM_MAX_SWAP_INTERVAL:
108   default:
109      val = 0;
110      break;
111   }
112
113   return val;
114}
115
116static boolean
117wayland_display_get_pixmap_format(struct native_display *ndpy,
118                                  EGLNativePixmapType pix,
119                                  enum pipe_format *format)
120{
121   /* all wl_egl_pixmaps are supported */
122   *format = PIPE_FORMAT_NONE;
123
124   return TRUE;
125}
126
127static void
128wayland_pixmap_destroy(struct wl_egl_pixmap *egl_pixmap)
129{
130   struct pipe_resource *resource = egl_pixmap->driver_private;
131
132   assert(resource);
133
134   pipe_resource_reference(&resource, NULL);
135   if (egl_pixmap->buffer) {
136      wl_buffer_destroy(egl_pixmap->buffer);
137      egl_pixmap->buffer = NULL;
138   }
139
140   egl_pixmap->driver_private = NULL;
141   egl_pixmap->destroy = NULL;
142}
143
144static void
145wayland_pixmap_surface_initialize(struct wayland_surface *surface)
146{
147   struct wayland_display *display = wayland_display(&surface->display->base);
148   const enum native_attachment front_natt = NATIVE_ATTACHMENT_FRONT_LEFT;
149
150   if (surface->pix->buffer != NULL)
151      return;
152
153   surface->pix->buffer  = display->create_buffer(display, surface, front_natt);
154   surface->pix->destroy = wayland_pixmap_destroy;
155   surface->pix->driver_private =
156      resource_surface_get_single_resource(surface->rsurf, front_natt);
157}
158
159static void
160wayland_release_pending_resource(void *data)
161{
162   struct wayland_surface *surface = data;
163
164   /* FIXME: print internal error */
165   if (!surface->pending_resource)
166      return;
167
168   pipe_resource_reference(&surface->pending_resource, NULL);
169}
170
171static void
172wayland_window_surface_handle_resize(struct wayland_surface *surface)
173{
174   struct wayland_display *display = surface->display;
175   struct pipe_resource *front_resource;
176   const enum native_attachment front_natt = NATIVE_ATTACHMENT_FRONT_LEFT;
177   int i;
178
179   front_resource = resource_surface_get_single_resource(surface->rsurf,
180                                                         front_natt);
181   if (resource_surface_set_size(surface->rsurf,
182                                 surface->win->width, surface->win->height)) {
183
184      if (surface->pending_resource)
185         force_roundtrip(display->dpy);
186
187      if (front_resource) {
188         surface->pending_resource = front_resource;
189         front_resource = NULL;
190         wl_display_sync_callback(display->dpy,
191                                  wayland_release_pending_resource, surface);
192      }
193
194      for (i = 0; i < WL_BUFFER_COUNT; ++i) {
195         if (surface->buffer[i])
196            wl_buffer_destroy(surface->buffer[i]);
197         surface->buffer[i] = NULL;
198      }
199
200      surface->dx = surface->win->dx;
201      surface->dy = surface->win->dy;
202   }
203   pipe_resource_reference(&front_resource, NULL);
204}
205
206static boolean
207wayland_surface_validate(struct native_surface *nsurf, uint attachment_mask,
208                         unsigned int *seq_num, struct pipe_resource **textures,
209                         int *width, int *height)
210{
211   struct wayland_surface *surface = wayland_surface(nsurf);
212
213   if (surface->type == WL_WINDOW_SURFACE)
214      wayland_window_surface_handle_resize(surface);
215
216   if (!resource_surface_add_resources(surface->rsurf, attachment_mask |
217                                       surface->attachment_mask))
218      return FALSE;
219
220   if (textures)
221      resource_surface_get_resources(surface->rsurf, textures, attachment_mask);
222
223   if (seq_num)
224      *seq_num = surface->sequence_number;
225
226   resource_surface_get_size(surface->rsurf, (uint *) width, (uint *) height);
227
228   if (surface->type == WL_PIXMAP_SURFACE)
229      wayland_pixmap_surface_initialize(surface);
230
231   return TRUE;
232}
233
234static void
235wayland_frame_callback(struct wl_surface *surf, void *data, uint32_t time)
236{
237   struct wayland_surface *surface = data;
238
239   surface->block_swap_buffers = FALSE;
240}
241
242static INLINE void
243wayland_buffers_swap(struct wl_buffer **buffer,
244                     enum wayland_buffer_type buf1,
245                     enum wayland_buffer_type buf2)
246{
247   struct wl_buffer *tmp = buffer[buf1];
248   buffer[buf1] = buffer[buf2];
249   buffer[buf2] = tmp;
250}
251
252static boolean
253wayland_surface_swap_buffers(struct native_surface *nsurf)
254{
255   struct wayland_surface *surface = wayland_surface(nsurf);
256   struct wayland_display *display = surface->display;
257
258   while (surface->block_swap_buffers)
259      wl_display_iterate(display->dpy, WL_DISPLAY_READABLE);
260
261   surface->block_swap_buffers = TRUE;
262   wl_display_frame_callback(display->dpy, surface->win->surface,
263                             wayland_frame_callback, surface);
264
265   if (surface->type == WL_WINDOW_SURFACE) {
266      resource_surface_swap_buffers(surface->rsurf,
267                                    NATIVE_ATTACHMENT_FRONT_LEFT,
268                                    NATIVE_ATTACHMENT_BACK_LEFT, FALSE);
269
270      wayland_buffers_swap(surface->buffer, WL_BUFFER_FRONT, WL_BUFFER_BACK);
271
272      if (surface->buffer[WL_BUFFER_FRONT] == NULL)
273         surface->buffer[WL_BUFFER_FRONT] =
274            display->create_buffer(display, surface,
275                                   NATIVE_ATTACHMENT_FRONT_LEFT);
276
277      wl_surface_attach(surface->win->surface, surface->buffer[WL_BUFFER_FRONT],
278                        surface->dx, surface->dy);
279
280      resource_surface_get_size(surface->rsurf,
281                                (uint *) &surface->win->attached_width,
282                                (uint *) &surface->win->attached_height);
283      surface->dx = 0;
284      surface->dy = 0;
285   }
286
287   surface->sequence_number++;
288   wayland_event_handler->invalid_surface(&display->base,
289                                          &surface->base,
290                                          surface->sequence_number);
291
292   return TRUE;
293}
294
295static boolean
296wayland_surface_present(struct native_surface *nsurf,
297                        enum native_attachment natt,
298                        boolean preserve,
299                        uint swap_interval)
300{
301   struct wayland_surface *surface = wayland_surface(nsurf);
302   uint width, height;
303   boolean ret;
304
305   if (preserve || swap_interval)
306      return FALSE;
307
308   switch (natt) {
309   case NATIVE_ATTACHMENT_FRONT_LEFT:
310      ret = TRUE;
311      break;
312   case NATIVE_ATTACHMENT_BACK_LEFT:
313      ret = wayland_surface_swap_buffers(nsurf);
314      break;
315   default:
316      ret = FALSE;
317      break;
318   }
319
320   if (surface->type == WL_WINDOW_SURFACE) {
321      resource_surface_get_size(surface->rsurf, &width, &height);
322      wl_buffer_damage(surface->buffer[WL_BUFFER_FRONT], 0, 0, width, height);
323      wl_surface_damage(surface->win->surface, 0, 0, width, height);
324   }
325
326   return ret;
327}
328
329static void
330wayland_surface_wait(struct native_surface *nsurf)
331{
332   /* no-op */
333}
334
335static void
336wayland_surface_destroy(struct native_surface *nsurf)
337{
338   struct wayland_surface *surface = wayland_surface(nsurf);
339   enum wayland_buffer_type buffer;
340
341   for (buffer = 0; buffer < WL_BUFFER_COUNT; ++buffer) {
342      if (surface->buffer[buffer])
343         wl_buffer_destroy(surface->buffer[buffer]);
344   }
345
346   resource_surface_destroy(surface->rsurf);
347   FREE(surface);
348}
349
350
351
352static struct native_surface *
353wayland_create_pixmap_surface(struct native_display *ndpy,
354                              EGLNativePixmapType pix,
355                              const struct native_config *nconf)
356{
357   struct wayland_display *display = wayland_display(ndpy);
358   struct wayland_surface *surface;
359   struct wl_egl_pixmap *egl_pixmap = (struct wl_egl_pixmap *) pix;
360   enum native_attachment natt = NATIVE_ATTACHMENT_FRONT_LEFT;
361   uint bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW |
362      PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT;
363
364   surface = CALLOC_STRUCT(wayland_surface);
365   if (!surface)
366      return NULL;
367
368   surface->display = display;
369
370   surface->pending_resource = NULL;
371   surface->type = WL_PIXMAP_SURFACE;
372   surface->pix = egl_pixmap;
373
374   if (nconf)
375      surface->color_format = nconf->color_format;
376   else /* FIXME: derive format from wl_visual */
377      surface->color_format = PIPE_FORMAT_B8G8R8A8_UNORM;
378
379   surface->attachment_mask = (1 << NATIVE_ATTACHMENT_FRONT_LEFT);
380
381   surface->rsurf = resource_surface_create(display->base.screen,
382                                            surface->color_format, bind);
383
384   if (!surface->rsurf) {
385      FREE(surface);
386      return NULL;
387   }
388
389   resource_surface_set_size(surface->rsurf,
390                             egl_pixmap->width, egl_pixmap->height);
391
392   /* the pixmap is already allocated, so import it */
393   if (surface->pix->buffer != NULL)
394      resource_surface_import_resource(surface->rsurf, natt,
395                                       surface->pix->driver_private);
396
397   surface->base.destroy = wayland_surface_destroy;
398   surface->base.present = wayland_surface_present;
399   surface->base.validate = wayland_surface_validate;
400   surface->base.wait = wayland_surface_wait;
401
402   return &surface->base;
403}
404
405
406static struct native_surface *
407wayland_create_window_surface(struct native_display *ndpy,
408                              EGLNativeWindowType win,
409                              const struct native_config *nconf)
410{
411   struct wayland_display *display = wayland_display(ndpy);
412   struct wayland_config *config = wayland_config(nconf);
413   struct wayland_surface *surface;
414   uint bind = PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW |
415      PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT;
416
417   surface = CALLOC_STRUCT(wayland_surface);
418   if (!surface)
419      return NULL;
420
421   surface->display = display;
422   surface->color_format = config->base.color_format;
423
424   surface->win = (struct wl_egl_window *) win;
425
426   surface->pending_resource = NULL;
427   surface->block_swap_buffers = FALSE;
428   surface->type = WL_WINDOW_SURFACE;
429
430   surface->buffer[WL_BUFFER_FRONT] = NULL;
431   surface->buffer[WL_BUFFER_BACK] = NULL;
432   surface->attachment_mask = (1 << NATIVE_ATTACHMENT_FRONT_LEFT) |
433      (1 << NATIVE_ATTACHMENT_BACK_LEFT);
434
435   surface->rsurf = resource_surface_create(display->base.screen,
436                                            surface->color_format, bind);
437
438   if (!surface->rsurf) {
439      FREE(surface);
440      return NULL;
441   }
442
443   surface->base.destroy = wayland_surface_destroy;
444   surface->base.present = wayland_surface_present;
445   surface->base.validate = wayland_surface_validate;
446   surface->base.wait = wayland_surface_wait;
447
448   return &surface->base;
449}
450
451static struct native_display *
452native_create_display(void *dpy, boolean use_sw)
453{
454   struct wayland_display *display = NULL;
455   boolean own_dpy = FALSE;
456
457   use_sw = use_sw || debug_get_bool_option("EGL_SOFTWARE", FALSE);
458
459   if (dpy == NULL) {
460      dpy = wl_display_connect(NULL);
461      if (dpy == NULL)
462         return NULL;
463      own_dpy = TRUE;
464   }
465
466   if (use_sw) {
467      _eglLog(_EGL_INFO, "use software fallback");
468      display = wayland_create_shm_display((struct wl_display *) dpy,
469                                           wayland_event_handler);
470   } else {
471      display = wayland_create_drm_display((struct wl_display *) dpy,
472                                           wayland_event_handler);
473   }
474
475   if (!display)
476      return NULL;
477
478   display->base.get_param = wayland_display_get_param;
479   display->base.get_configs = wayland_display_get_configs;
480   display->base.get_pixmap_format = wayland_display_get_pixmap_format;
481   display->base.copy_to_pixmap = native_display_copy_to_pixmap;
482   display->base.create_window_surface = wayland_create_window_surface;
483   display->base.create_pixmap_surface = wayland_create_pixmap_surface;
484
485   display->own_dpy = own_dpy;
486
487   return &display->base;
488}
489
490static const struct native_platform wayland_platform = {
491   "wayland", /* name */
492   native_create_display
493};
494
495const struct native_platform *
496native_get_wayland_platform(const struct native_event_handler *event_handler)
497{
498   wayland_event_handler = event_handler;
499   return &wayland_platform;
500}
501
502/* vim: set sw=3 ts=8 sts=3 expandtab: */
503