egl_g3d.c revision 381ea0d67a6d84a34d23571c49bbf4339ffda364 
1/*
2 * Mesa 3-D graphics library
3 * Version:  7.8
4 *
5 * Copyright (C) 2009-2010 Chia-I Wu <olv@0xlab.org>
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 "egldriver.h"
27#include "eglcurrent.h"
28#include "egllog.h"
29
30#include "pipe/p_screen.h"
31#include "util/u_memory.h"
32#include "util/u_format.h"
33#include "util/u_string.h"
34
35#include "egl_g3d.h"
36#include "egl_g3d_api.h"
37#include "egl_g3d_st.h"
38#include "egl_g3d_loader.h"
39#include "native.h"
40
41static void
42egl_g3d_invalid_surface(struct native_display *ndpy,
43                        struct native_surface *nsurf,
44                        unsigned int seq_num)
45{
46   /* XXX not thread safe? */
47   struct egl_g3d_surface *gsurf = egl_g3d_surface(nsurf->user_data);
48   struct egl_g3d_context *gctx;
49
50   /*
51    * Some functions such as egl_g3d_copy_buffers create a temporary native
52    * surface.  There is no gsurf associated with it.
53    */
54   gctx = (gsurf) ? egl_g3d_context(gsurf->base.CurrentContext) : NULL;
55   if (gctx)
56      gctx->stctxi->notify_invalid_framebuffer(gctx->stctxi, gsurf->stfbi);
57}
58
59static struct pipe_screen *
60egl_g3d_new_drm_screen(struct native_display *ndpy, const char *name, int fd)
61{
62   _EGLDisplay *dpy = (_EGLDisplay *) ndpy->user_data;
63   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
64   return gdpy->loader->create_drm_screen(name, fd);
65}
66
67static struct pipe_screen *
68egl_g3d_new_sw_screen(struct native_display *ndpy, struct sw_winsys *ws)
69{
70   _EGLDisplay *dpy = (_EGLDisplay *) ndpy->user_data;
71   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
72   return gdpy->loader->create_sw_screen(ws);
73}
74
75static struct native_event_handler egl_g3d_native_event_handler = {
76   egl_g3d_invalid_surface,
77   egl_g3d_new_drm_screen,
78   egl_g3d_new_sw_screen
79};
80
81/**
82 * Get the native platform.
83 */
84static const struct native_platform *
85egl_g3d_get_platform(_EGLDriver *drv, _EGLPlatformType plat)
86{
87   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
88
89   if (!gdrv->platforms[plat]) {
90      const char *plat_name = NULL;
91      const struct native_platform *nplat = NULL;
92
93      switch (plat) {
94      case _EGL_PLATFORM_WINDOWS:
95         plat_name = "Windows";
96#ifdef HAVE_GDI_BACKEND
97         nplat = native_get_gdi_platform();
98#endif
99         break;
100      case _EGL_PLATFORM_X11:
101         plat_name = "X11";
102#ifdef HAVE_X11_BACKEND
103         nplat = native_get_x11_platform();
104#endif
105      case _EGL_PLATFORM_WAYLAND:
106         plat_name = "wayland";
107#ifdef HAVE_WAYLAND_BACKEND
108         nplat = native_get_wayland_platform();
109#endif
110         break;
111      case _EGL_PLATFORM_DRM:
112         plat_name = "DRM";
113#ifdef HAVE_DRM_BACKEND
114         nplat = native_get_drm_platform();
115#endif
116         break;
117      case _EGL_PLATFORM_FBDEV:
118         plat_name = "FBDEV";
119#ifdef HAVE_FBDEV_BACKEND
120         nplat = native_get_fbdev_platform();
121#endif
122         break;
123      default:
124         break;
125      }
126
127      if (nplat)
128         nplat->set_event_handler(&egl_g3d_native_event_handler);
129      else
130         _eglLog(_EGL_WARNING, "unsupported platform %s", plat_name);
131
132      gdrv->platforms[plat] = nplat;
133   }
134
135   return gdrv->platforms[plat];
136}
137
138#ifdef EGL_MESA_screen_surface
139
140static void
141egl_g3d_add_screens(_EGLDriver *drv, _EGLDisplay *dpy)
142{
143   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
144   const struct native_connector **native_connectors;
145   EGLint num_connectors, i;
146
147   native_connectors =
148      gdpy->native->modeset->get_connectors(gdpy->native, &num_connectors, NULL);
149   if (!num_connectors) {
150      if (native_connectors)
151         FREE(native_connectors);
152      return;
153   }
154
155   for (i = 0; i < num_connectors; i++) {
156      const struct native_connector *nconn = native_connectors[i];
157      struct egl_g3d_screen *gscr;
158      const struct native_mode **native_modes;
159      EGLint num_modes, j;
160
161      /* TODO support for hotplug */
162      native_modes =
163         gdpy->native->modeset->get_modes(gdpy->native, nconn, &num_modes);
164      if (!num_modes) {
165         if (native_modes)
166            FREE(native_modes);
167         continue;
168      }
169
170      gscr = CALLOC_STRUCT(egl_g3d_screen);
171      if (!gscr) {
172         FREE(native_modes);
173         continue;
174      }
175
176      _eglInitScreen(&gscr->base, dpy, num_modes);
177      for (j = 0; j < gscr->base.NumModes; j++) {
178         const struct native_mode *nmode = native_modes[j];
179         _EGLMode *mode = &gscr->base.Modes[j];
180
181         mode->Width = nmode->width;
182         mode->Height = nmode->height;
183         mode->RefreshRate = nmode->refresh_rate;
184         mode->Optimal = EGL_FALSE;
185         mode->Interlaced = EGL_FALSE;
186         /* no need to strdup() */
187         mode->Name = nmode->desc;
188      }
189
190      gscr->native = nconn;
191      gscr->native_modes = native_modes;
192
193      _eglLinkScreen(&gscr->base);
194   }
195
196   FREE(native_connectors);
197}
198
199#endif /* EGL_MESA_screen_surface */
200
201/**
202 * Initialize and validate the EGL config attributes.
203 */
204static EGLBoolean
205init_config_attributes(_EGLConfig *conf, const struct native_config *nconf,
206                       EGLint api_mask, enum pipe_format depth_stencil_format,
207                       EGLBoolean preserve_buffer, EGLint max_swap_interval)
208{
209   uint rgba[4], depth_stencil[2], buffer_size;
210   EGLint surface_type;
211   EGLint i;
212
213   /* get the color and depth/stencil component sizes */
214   assert(nconf->color_format != PIPE_FORMAT_NONE);
215   buffer_size = 0;
216   for (i = 0; i < 4; i++) {
217      rgba[i] = util_format_get_component_bits(nconf->color_format,
218            UTIL_FORMAT_COLORSPACE_RGB, i);
219      buffer_size += rgba[i];
220   }
221   for (i = 0; i < 2; i++) {
222      if (depth_stencil_format != PIPE_FORMAT_NONE) {
223         depth_stencil[i] =
224            util_format_get_component_bits(depth_stencil_format,
225               UTIL_FORMAT_COLORSPACE_ZS, i);
226      }
227      else {
228         depth_stencil[i] = 0;
229      }
230   }
231
232   surface_type = 0x0;
233   /* pixmap surfaces should be EGL_SINGLE_BUFFER */
234   if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_FRONT_LEFT)) {
235      if (nconf->pixmap_bit)
236         surface_type |= EGL_PIXMAP_BIT;
237   }
238   /* the others surfaces should be EGL_BACK_BUFFER (or settable) */
239   if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_BACK_LEFT)) {
240      if (nconf->window_bit)
241         surface_type |= EGL_WINDOW_BIT;
242#ifdef EGL_MESA_screen_surface
243      if (nconf->scanout_bit)
244         surface_type |= EGL_SCREEN_BIT_MESA;
245#endif
246      surface_type |= EGL_PBUFFER_BIT;
247   }
248
249   conf->Conformant = api_mask;
250   conf->RenderableType = api_mask;
251
252   conf->RedSize = rgba[0];
253   conf->GreenSize = rgba[1];
254   conf->BlueSize = rgba[2];
255   conf->AlphaSize = rgba[3];
256   conf->BufferSize = buffer_size;
257
258   conf->DepthSize = depth_stencil[0];
259   conf->StencilSize = depth_stencil[1];
260
261   conf->SurfaceType = surface_type;
262
263   conf->NativeRenderable = EGL_TRUE;
264   if (surface_type & EGL_WINDOW_BIT) {
265      conf->NativeVisualID = nconf->native_visual_id;
266      conf->NativeVisualType = nconf->native_visual_type;
267   }
268
269   if (surface_type & EGL_PBUFFER_BIT) {
270      conf->BindToTextureRGB = EGL_TRUE;
271      if (rgba[3])
272         conf->BindToTextureRGBA = EGL_TRUE;
273
274      conf->MaxPbufferWidth = 4096;
275      conf->MaxPbufferHeight = 4096;
276      conf->MaxPbufferPixels = 4096 * 4096;
277   }
278
279   conf->Level = nconf->level;
280
281   if (nconf->transparent_rgb) {
282      conf->TransparentType = EGL_TRANSPARENT_RGB;
283      conf->TransparentRedValue = nconf->transparent_rgb_values[0];
284      conf->TransparentGreenValue = nconf->transparent_rgb_values[1];
285      conf->TransparentBlueValue = nconf->transparent_rgb_values[2];
286   }
287
288   conf->MinSwapInterval = 0;
289   conf->MaxSwapInterval = max_swap_interval;
290   if (preserve_buffer)
291      conf->SurfaceType |= EGL_SWAP_BEHAVIOR_PRESERVED_BIT;
292
293   return _eglValidateConfig(conf, EGL_FALSE);
294}
295
296/**
297 * Initialize an EGL config from the native config.
298 */
299static EGLBoolean
300egl_g3d_init_config(_EGLDriver *drv, _EGLDisplay *dpy,
301                    _EGLConfig *conf, const struct native_config *nconf,
302                    enum pipe_format depth_stencil_format,
303                    int preserve_buffer, int max_swap_interval)
304{
305   struct egl_g3d_config *gconf = egl_g3d_config(conf);
306   EGLint buffer_mask;
307   EGLBoolean valid;
308
309   buffer_mask = 0x0;
310   if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_FRONT_LEFT))
311      buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
312   if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_BACK_LEFT))
313      buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
314   if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_FRONT_RIGHT))
315      buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
316   if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_BACK_RIGHT))
317      buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
318
319   gconf->stvis.buffer_mask = buffer_mask;
320   gconf->stvis.color_format = nconf->color_format;
321   gconf->stvis.depth_stencil_format = depth_stencil_format;
322   gconf->stvis.accum_format = PIPE_FORMAT_NONE;
323   gconf->stvis.samples = 0;
324
325   /* will be overridden per surface */
326   gconf->stvis.render_buffer = (buffer_mask & ST_ATTACHMENT_BACK_LEFT_MASK) ?
327      ST_ATTACHMENT_BACK_LEFT : ST_ATTACHMENT_FRONT_LEFT;
328
329   valid = init_config_attributes(&gconf->base,
330         nconf, dpy->ClientAPIs, depth_stencil_format,
331         preserve_buffer, max_swap_interval);
332   if (!valid) {
333      _eglLog(_EGL_DEBUG, "skip invalid config 0x%x", nconf->native_visual_id);
334      return EGL_FALSE;
335   }
336
337   gconf->native = nconf;
338
339   return EGL_TRUE;
340}
341
342/**
343 * Get all interested depth/stencil formats of a display.
344 */
345static EGLint
346egl_g3d_fill_depth_stencil_formats(_EGLDisplay *dpy,
347                                   enum pipe_format formats[8])
348{
349   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
350   struct pipe_screen *screen = gdpy->native->screen;
351   const EGLint candidates[] = {
352      1, PIPE_FORMAT_Z16_UNORM,
353      1, PIPE_FORMAT_Z32_UNORM,
354      2, PIPE_FORMAT_Z24_UNORM_S8_USCALED, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
355      2, PIPE_FORMAT_Z24X8_UNORM, PIPE_FORMAT_X8Z24_UNORM,
356      0
357   };
358   const EGLint *fmt = candidates;
359   EGLint count;
360
361   count = 0;
362   formats[count++] = PIPE_FORMAT_NONE;
363
364   while (*fmt) {
365      EGLint i, n = *fmt++;
366
367      /* pick the first supported format */
368      for (i = 0; i < n; i++) {
369         if (screen->is_format_supported(screen, fmt[i],
370                  PIPE_TEXTURE_2D, 0, PIPE_BIND_DEPTH_STENCIL, 0)) {
371            formats[count++] = fmt[i];
372            break;
373         }
374      }
375
376      fmt += n;
377   }
378
379   return count;
380}
381
382/**
383 * Add configs to display and return the next config ID.
384 */
385static EGLint
386egl_g3d_add_configs(_EGLDriver *drv, _EGLDisplay *dpy, EGLint id)
387{
388   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
389   const struct native_config **native_configs;
390   enum pipe_format depth_stencil_formats[8];
391   int num_formats, num_configs, i, j;
392   int preserve_buffer, max_swap_interval;
393
394   native_configs = gdpy->native->get_configs(gdpy->native, &num_configs);
395   if (!num_configs) {
396      if (native_configs)
397         FREE(native_configs);
398      return id;
399   }
400
401   preserve_buffer =
402      gdpy->native->get_param(gdpy->native, NATIVE_PARAM_PRESERVE_BUFFER);
403   max_swap_interval =
404      gdpy->native->get_param(gdpy->native, NATIVE_PARAM_MAX_SWAP_INTERVAL);
405
406   num_formats = egl_g3d_fill_depth_stencil_formats(dpy,
407         depth_stencil_formats);
408
409   for (i = 0; i < num_configs; i++) {
410      for (j = 0; j < num_formats; j++) {
411         struct egl_g3d_config *gconf;
412
413         gconf = CALLOC_STRUCT(egl_g3d_config);
414         if (gconf) {
415            _eglInitConfig(&gconf->base, dpy, id);
416            if (!egl_g3d_init_config(drv, dpy, &gconf->base,
417                     native_configs[i], depth_stencil_formats[j],
418                     preserve_buffer, max_swap_interval)) {
419               FREE(gconf);
420               break;
421            }
422
423            _eglLinkConfig(&gconf->base);
424            id++;
425         }
426      }
427   }
428
429   FREE(native_configs);
430   return id;
431}
432
433static void
434egl_g3d_free_config(void *conf)
435{
436   struct egl_g3d_config *gconf = egl_g3d_config((_EGLConfig *) conf);
437   FREE(gconf);
438}
439
440static void
441egl_g3d_free_screen(void *scr)
442{
443#ifdef EGL_MESA_screen_surface
444   struct egl_g3d_screen *gscr = egl_g3d_screen((_EGLScreen *) scr);
445   FREE(gscr->native_modes);
446   FREE(gscr);
447#endif
448}
449
450static EGLBoolean
451egl_g3d_terminate(_EGLDriver *drv, _EGLDisplay *dpy)
452{
453   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
454
455   _eglReleaseDisplayResources(drv, dpy);
456
457   if (gdpy->pipe)
458      gdpy->pipe->destroy(gdpy->pipe);
459
460   if (dpy->Configs) {
461      _eglDestroyArray(dpy->Configs, egl_g3d_free_config);
462      dpy->Configs = NULL;
463   }
464   if (dpy->Screens) {
465      _eglDestroyArray(dpy->Screens, egl_g3d_free_screen);
466      dpy->Screens = NULL;
467   }
468
469   _eglCleanupDisplay(dpy);
470
471   if (gdpy->smapi)
472      egl_g3d_destroy_st_manager(gdpy->smapi);
473
474   if (gdpy->native)
475      gdpy->native->destroy(gdpy->native);
476
477   FREE(gdpy);
478   dpy->DriverData = NULL;
479
480   return EGL_TRUE;
481}
482
483static EGLBoolean
484egl_g3d_initialize(_EGLDriver *drv, _EGLDisplay *dpy)
485{
486   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
487   struct egl_g3d_display *gdpy;
488   const struct native_platform *nplat;
489
490   nplat = egl_g3d_get_platform(drv, dpy->Platform);
491   if (!nplat)
492      return EGL_FALSE;
493
494   if (dpy->Options.TestOnly)
495      return EGL_TRUE;
496
497   gdpy = CALLOC_STRUCT(egl_g3d_display);
498   if (!gdpy) {
499      _eglError(EGL_BAD_ALLOC, "eglInitialize");
500      goto fail;
501   }
502   gdpy->loader = gdrv->loader;
503   dpy->DriverData = gdpy;
504
505   _eglLog(_EGL_INFO, "use %s for display %p", nplat->name, dpy->PlatformDisplay);
506   gdpy->native = nplat->create_display(dpy->PlatformDisplay,
507         dpy->Options.UseFallback, (void *) dpy);
508   if (!gdpy->native) {
509      _eglError(EGL_NOT_INITIALIZED, "eglInitialize(no usable display)");
510      goto fail;
511   }
512
513   if (gdpy->loader->profile_masks[ST_API_OPENGL] & ST_PROFILE_DEFAULT_MASK)
514      dpy->ClientAPIs |= EGL_OPENGL_BIT;
515   if (gdpy->loader->profile_masks[ST_API_OPENGL] & ST_PROFILE_OPENGL_ES1_MASK)
516      dpy->ClientAPIs |= EGL_OPENGL_ES_BIT;
517   if (gdpy->loader->profile_masks[ST_API_OPENGL] & ST_PROFILE_OPENGL_ES2_MASK)
518      dpy->ClientAPIs |= EGL_OPENGL_ES2_BIT;
519   if (gdpy->loader->profile_masks[ST_API_OPENVG] & ST_PROFILE_DEFAULT_MASK)
520      dpy->ClientAPIs |= EGL_OPENVG_BIT;
521
522   gdpy->smapi = egl_g3d_create_st_manager(dpy);
523   if (!gdpy->smapi) {
524      _eglError(EGL_NOT_INITIALIZED,
525            "eglInitialize(failed to create st manager)");
526      goto fail;
527   }
528
529#ifdef EGL_MESA_screen_surface
530   /* enable MESA_screen_surface before adding (and validating) configs */
531   if (gdpy->native->modeset) {
532      dpy->Extensions.MESA_screen_surface = EGL_TRUE;
533      egl_g3d_add_screens(drv, dpy);
534   }
535#endif
536
537   dpy->Extensions.KHR_image_base = EGL_TRUE;
538   if (gdpy->native->get_param(gdpy->native, NATIVE_PARAM_USE_NATIVE_BUFFER))
539      dpy->Extensions.KHR_image_pixmap = EGL_TRUE;
540
541   dpy->Extensions.KHR_reusable_sync = EGL_TRUE;
542   dpy->Extensions.KHR_fence_sync = EGL_TRUE;
543
544   dpy->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
545   dpy->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
546   dpy->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
547
548   if (dpy->Platform == _EGL_PLATFORM_DRM) {
549      dpy->Extensions.MESA_drm_display = EGL_TRUE;
550      if (gdpy->native->buffer)
551         dpy->Extensions.MESA_drm_image = EGL_TRUE;
552   }
553
554   if (dpy->Platform == _EGL_PLATFORM_WAYLAND && gdpy->native->buffer)
555      dpy->Extensions.MESA_drm_image = EGL_TRUE;
556
557   if (egl_g3d_add_configs(drv, dpy, 1) == 1) {
558      _eglError(EGL_NOT_INITIALIZED, "eglInitialize(unable to add configs)");
559      goto fail;
560   }
561
562   dpy->VersionMajor = 1;
563   dpy->VersionMinor = 4;
564
565   return EGL_TRUE;
566
567fail:
568   if (gdpy)
569      egl_g3d_terminate(drv, dpy);
570   return EGL_FALSE;
571}
572
573static _EGLProc
574egl_g3d_get_proc_address(_EGLDriver *drv, const char *procname)
575{
576   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
577   struct st_api *stapi = NULL;
578
579   if (procname && procname[0] == 'v' && procname[1] == 'g')
580      stapi = gdrv->loader->get_st_api(ST_API_OPENVG);
581   else if (procname && procname[0] == 'g' && procname[1] == 'l')
582      stapi = gdrv->loader->get_st_api(ST_API_OPENGL);
583
584   return (_EGLProc) ((stapi) ?
585         stapi->get_proc_address(stapi, procname) : NULL);
586}
587
588_EGLDriver *
589egl_g3d_create_driver(const struct egl_g3d_loader *loader)
590{
591   struct egl_g3d_driver *gdrv;
592
593   gdrv = CALLOC_STRUCT(egl_g3d_driver);
594   if (!gdrv)
595      return NULL;
596
597   gdrv->loader = loader;
598
599   egl_g3d_init_driver_api(&gdrv->base);
600   gdrv->base.API.Initialize = egl_g3d_initialize;
601   gdrv->base.API.Terminate = egl_g3d_terminate;
602   gdrv->base.API.GetProcAddress = egl_g3d_get_proc_address;
603
604   /* to be filled by the caller */
605   gdrv->base.Name = NULL;
606   gdrv->base.Unload = NULL;
607
608   return &gdrv->base;
609}
610
611void
612egl_g3d_destroy_driver(_EGLDriver *drv)
613{
614   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
615   FREE(gdrv);
616}
617