egl_g3d.c revision 655e4598927728a663f4cfcd6babdf7e5ad83f77 
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
41/**
42 * Get the native platform.
43 */
44static const struct native_platform *
45egl_g3d_get_platform(_EGLDriver *drv, _EGLPlatformType plat)
46{
47   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
48
49   if (!gdrv->platforms[plat]) {
50      const char *plat_name = NULL;
51      const struct native_platform *nplat = NULL;
52
53      switch (plat) {
54      case _EGL_PLATFORM_WINDOWS:
55         plat_name = "Windows";
56#ifdef HAVE_GDI_BACKEND
57         nplat = native_get_gdi_platform();
58#endif
59         break;
60      case _EGL_PLATFORM_X11:
61         plat_name = "X11";
62#ifdef HAVE_X11_BACKEND
63         nplat = native_get_x11_platform();
64#endif
65         break;
66      case _EGL_PLATFORM_DRM:
67         plat_name = "DRM";
68#ifdef HAVE_DRM_BACKEND
69         nplat = native_get_drm_platform();
70#endif
71         break;
72      case _EGL_PLATFORM_FBDEV:
73         plat_name = "FBDEV";
74#ifdef HAVE_FBDEV_BACKEND
75         nplat = native_get_fbdev_platform();
76#endif
77         break;
78      default:
79         break;
80      }
81
82      if (!nplat)
83         _eglLog(_EGL_WARNING, "unsupported platform %s", plat_name);
84
85      gdrv->platforms[plat] = nplat;
86   }
87
88   return gdrv->platforms[plat];
89}
90
91#ifdef EGL_MESA_screen_surface
92
93static void
94egl_g3d_add_screens(_EGLDriver *drv, _EGLDisplay *dpy)
95{
96   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
97   const struct native_connector **native_connectors;
98   EGLint num_connectors, i;
99
100   native_connectors =
101      gdpy->native->modeset->get_connectors(gdpy->native, &num_connectors, NULL);
102   if (!num_connectors) {
103      if (native_connectors)
104         FREE(native_connectors);
105      return;
106   }
107
108   for (i = 0; i < num_connectors; i++) {
109      const struct native_connector *nconn = native_connectors[i];
110      struct egl_g3d_screen *gscr;
111      const struct native_mode **native_modes;
112      EGLint num_modes, j;
113
114      /* TODO support for hotplug */
115      native_modes =
116         gdpy->native->modeset->get_modes(gdpy->native, nconn, &num_modes);
117      if (!num_modes) {
118         if (native_modes)
119            FREE(native_modes);
120         continue;
121      }
122
123      gscr = CALLOC_STRUCT(egl_g3d_screen);
124      if (!gscr) {
125         FREE(native_modes);
126         continue;
127      }
128
129      _eglInitScreen(&gscr->base, dpy, num_modes);
130      for (j = 0; j < gscr->base.NumModes; j++) {
131         const struct native_mode *nmode = native_modes[j];
132         _EGLMode *mode = &gscr->base.Modes[j];
133
134         mode->Width = nmode->width;
135         mode->Height = nmode->height;
136         mode->RefreshRate = nmode->refresh_rate;
137         mode->Optimal = EGL_FALSE;
138         mode->Interlaced = EGL_FALSE;
139         /* no need to strdup() */
140         mode->Name = nmode->desc;
141      }
142
143      gscr->native = nconn;
144      gscr->native_modes = native_modes;
145
146      _eglLinkScreen(&gscr->base);
147   }
148
149   FREE(native_connectors);
150}
151
152#endif /* EGL_MESA_screen_surface */
153
154/**
155 * Initialize and validate the EGL config attributes.
156 */
157static EGLBoolean
158init_config_attributes(_EGLConfig *conf, const struct native_config *nconf,
159                       EGLint api_mask, enum pipe_format depth_stencil_format,
160                       EGLBoolean preserve_buffer, EGLint max_swap_interval)
161{
162   uint rgba[4], depth_stencil[2], buffer_size;
163   EGLint surface_type;
164   EGLint i;
165
166   /* get the color and depth/stencil component sizes */
167   assert(nconf->color_format != PIPE_FORMAT_NONE);
168   buffer_size = 0;
169   for (i = 0; i < 4; i++) {
170      rgba[i] = util_format_get_component_bits(nconf->color_format,
171            UTIL_FORMAT_COLORSPACE_RGB, i);
172      buffer_size += rgba[i];
173   }
174   for (i = 0; i < 2; i++) {
175      if (depth_stencil_format != PIPE_FORMAT_NONE) {
176         depth_stencil[i] =
177            util_format_get_component_bits(depth_stencil_format,
178               UTIL_FORMAT_COLORSPACE_ZS, i);
179      }
180      else {
181         depth_stencil[i] = 0;
182      }
183   }
184
185   surface_type = 0x0;
186   /* pixmap surfaces should be EGL_SINGLE_BUFFER */
187   if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_FRONT_LEFT)) {
188      if (nconf->pixmap_bit)
189         surface_type |= EGL_PIXMAP_BIT;
190   }
191   /* the others surfaces should be EGL_BACK_BUFFER (or settable) */
192   if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_BACK_LEFT)) {
193      if (nconf->window_bit)
194         surface_type |= EGL_WINDOW_BIT;
195#ifdef EGL_MESA_screen_surface
196      if (nconf->scanout_bit)
197         surface_type |= EGL_SCREEN_BIT_MESA;
198#endif
199      surface_type |= EGL_PBUFFER_BIT;
200   }
201
202   conf->Conformant = api_mask;
203   conf->RenderableType = api_mask;
204
205   conf->RedSize = rgba[0];
206   conf->GreenSize = rgba[1];
207   conf->BlueSize = rgba[2];
208   conf->AlphaSize = rgba[3];
209   conf->BufferSize = buffer_size;
210
211   conf->DepthSize = depth_stencil[0];
212   conf->StencilSize = depth_stencil[1];
213
214   conf->SurfaceType = surface_type;
215
216   conf->NativeRenderable = EGL_TRUE;
217   if (surface_type & EGL_WINDOW_BIT) {
218      conf->NativeVisualID = nconf->native_visual_id;
219      conf->NativeVisualType = nconf->native_visual_type;
220   }
221
222   if (surface_type & EGL_PBUFFER_BIT) {
223      conf->BindToTextureRGB = EGL_TRUE;
224      if (rgba[3])
225         conf->BindToTextureRGBA = EGL_TRUE;
226
227      conf->MaxPbufferWidth = 4096;
228      conf->MaxPbufferHeight = 4096;
229      conf->MaxPbufferPixels = 4096 * 4096;
230   }
231
232   conf->Level = nconf->level;
233
234   if (nconf->transparent_rgb) {
235      conf->TransparentType = EGL_TRANSPARENT_RGB;
236      conf->TransparentRedValue = nconf->transparent_rgb_values[0];
237      conf->TransparentGreenValue = nconf->transparent_rgb_values[1];
238      conf->TransparentBlueValue = nconf->transparent_rgb_values[2];
239   }
240
241   conf->MinSwapInterval = 0;
242   conf->MaxSwapInterval = max_swap_interval;
243   if (preserve_buffer)
244      conf->SurfaceType |= EGL_SWAP_BEHAVIOR_PRESERVED_BIT;
245
246   return _eglValidateConfig(conf, EGL_FALSE);
247}
248
249/**
250 * Initialize an EGL config from the native config.
251 */
252static EGLBoolean
253egl_g3d_init_config(_EGLDriver *drv, _EGLDisplay *dpy,
254                    _EGLConfig *conf, const struct native_config *nconf,
255                    enum pipe_format depth_stencil_format,
256                    int preserve_buffer, int max_swap_interval)
257{
258   struct egl_g3d_config *gconf = egl_g3d_config(conf);
259   EGLint buffer_mask;
260   EGLBoolean valid;
261
262   buffer_mask = 0x0;
263   if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_FRONT_LEFT))
264      buffer_mask |= ST_ATTACHMENT_FRONT_LEFT_MASK;
265   if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_BACK_LEFT))
266      buffer_mask |= ST_ATTACHMENT_BACK_LEFT_MASK;
267   if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_FRONT_RIGHT))
268      buffer_mask |= ST_ATTACHMENT_FRONT_RIGHT_MASK;
269   if (nconf->buffer_mask & (1 << NATIVE_ATTACHMENT_BACK_RIGHT))
270      buffer_mask |= ST_ATTACHMENT_BACK_RIGHT_MASK;
271
272   gconf->stvis.buffer_mask = buffer_mask;
273   gconf->stvis.color_format = nconf->color_format;
274   gconf->stvis.depth_stencil_format = depth_stencil_format;
275   gconf->stvis.accum_format = PIPE_FORMAT_NONE;
276   gconf->stvis.samples = 0;
277
278   /* will be overridden per surface */
279   gconf->stvis.render_buffer = (buffer_mask & ST_ATTACHMENT_BACK_LEFT_MASK) ?
280      ST_ATTACHMENT_BACK_LEFT : ST_ATTACHMENT_FRONT_LEFT;
281
282   valid = init_config_attributes(&gconf->base,
283         nconf, dpy->ClientAPIs, depth_stencil_format,
284         preserve_buffer, max_swap_interval);
285   if (!valid) {
286      _eglLog(_EGL_DEBUG, "skip invalid config 0x%x", nconf->native_visual_id);
287      return EGL_FALSE;
288   }
289
290   gconf->native = nconf;
291
292   return EGL_TRUE;
293}
294
295/**
296 * Get all interested depth/stencil formats of a display.
297 */
298static EGLint
299egl_g3d_fill_depth_stencil_formats(_EGLDisplay *dpy,
300                                   enum pipe_format formats[8])
301{
302   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
303   struct pipe_screen *screen = gdpy->native->screen;
304   const EGLint candidates[] = {
305      1, PIPE_FORMAT_Z16_UNORM,
306      1, PIPE_FORMAT_Z32_UNORM,
307      2, PIPE_FORMAT_Z24_UNORM_S8_USCALED, PIPE_FORMAT_S8_USCALED_Z24_UNORM,
308      2, PIPE_FORMAT_Z24X8_UNORM, PIPE_FORMAT_X8Z24_UNORM,
309      0
310   };
311   const EGLint *fmt = candidates;
312   EGLint count;
313
314   count = 0;
315   formats[count++] = PIPE_FORMAT_NONE;
316
317   while (*fmt) {
318      EGLint i, n = *fmt++;
319
320      /* pick the first supported format */
321      for (i = 0; i < n; i++) {
322         if (screen->is_format_supported(screen, fmt[i],
323                  PIPE_TEXTURE_2D, 0, PIPE_BIND_DEPTH_STENCIL, 0)) {
324            formats[count++] = fmt[i];
325            break;
326         }
327      }
328
329      fmt += n;
330   }
331
332   return count;
333}
334
335/**
336 * Add configs to display and return the next config ID.
337 */
338static EGLint
339egl_g3d_add_configs(_EGLDriver *drv, _EGLDisplay *dpy, EGLint id)
340{
341   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
342   const struct native_config **native_configs;
343   enum pipe_format depth_stencil_formats[8];
344   int num_formats, num_configs, i, j;
345   int preserve_buffer, max_swap_interval;
346
347   native_configs = gdpy->native->get_configs(gdpy->native, &num_configs);
348   if (!num_configs) {
349      if (native_configs)
350         FREE(native_configs);
351      return id;
352   }
353
354   preserve_buffer =
355      gdpy->native->get_param(gdpy->native, NATIVE_PARAM_PRESERVE_BUFFER);
356   max_swap_interval =
357      gdpy->native->get_param(gdpy->native, NATIVE_PARAM_MAX_SWAP_INTERVAL);
358
359   num_formats = egl_g3d_fill_depth_stencil_formats(dpy,
360         depth_stencil_formats);
361
362   for (i = 0; i < num_configs; i++) {
363      for (j = 0; j < num_formats; j++) {
364         struct egl_g3d_config *gconf;
365
366         gconf = CALLOC_STRUCT(egl_g3d_config);
367         if (gconf) {
368            _eglInitConfig(&gconf->base, dpy, id);
369            if (!egl_g3d_init_config(drv, dpy, &gconf->base,
370                     native_configs[i], depth_stencil_formats[j],
371                     preserve_buffer, max_swap_interval)) {
372               FREE(gconf);
373               break;
374            }
375
376            _eglLinkConfig(&gconf->base);
377            id++;
378         }
379      }
380   }
381
382   FREE(native_configs);
383   return id;
384}
385
386static void
387egl_g3d_invalid_surface(struct native_display *ndpy,
388                        struct native_surface *nsurf,
389                        unsigned int seq_num)
390{
391   /* XXX not thread safe? */
392   struct egl_g3d_surface *gsurf = egl_g3d_surface(nsurf->user_data);
393   struct egl_g3d_context *gctx;
394
395   /*
396    * Some functions such as egl_g3d_copy_buffers create a temporary native
397    * surface.  There is no gsurf associated with it.
398    */
399   gctx = (gsurf) ? egl_g3d_context(gsurf->base.CurrentContext) : NULL;
400   if (gctx)
401      gctx->stctxi->notify_invalid_framebuffer(gctx->stctxi, gsurf->stfbi);
402}
403
404static struct pipe_screen *
405egl_g3d_new_drm_screen(struct native_display *ndpy, const char *name, int fd)
406{
407   _EGLDisplay *dpy = (_EGLDisplay *) ndpy->user_data;
408   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
409   return gdpy->loader->create_drm_screen(name, fd);
410}
411
412static struct pipe_screen *
413egl_g3d_new_sw_screen(struct native_display *ndpy, struct sw_winsys *ws)
414{
415   _EGLDisplay *dpy = (_EGLDisplay *) ndpy->user_data;
416   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
417   return gdpy->loader->create_sw_screen(ws);
418}
419
420static struct native_event_handler egl_g3d_native_event_handler = {
421   egl_g3d_invalid_surface,
422   egl_g3d_new_drm_screen,
423   egl_g3d_new_sw_screen
424};
425
426static void
427egl_g3d_free_config(void *conf)
428{
429   struct egl_g3d_config *gconf = egl_g3d_config((_EGLConfig *) conf);
430   FREE(gconf);
431}
432
433static void
434egl_g3d_free_screen(void *scr)
435{
436#ifdef EGL_MESA_screen_surface
437   struct egl_g3d_screen *gscr = egl_g3d_screen((_EGLScreen *) scr);
438   FREE(gscr->native_modes);
439   FREE(gscr);
440#endif
441}
442
443static EGLBoolean
444egl_g3d_terminate(_EGLDriver *drv, _EGLDisplay *dpy)
445{
446   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
447
448   _eglReleaseDisplayResources(drv, dpy);
449
450   if (gdpy->pipe)
451      gdpy->pipe->destroy(gdpy->pipe);
452
453   if (dpy->Configs) {
454      _eglDestroyArray(dpy->Configs, egl_g3d_free_config);
455      dpy->Configs = NULL;
456   }
457   if (dpy->Screens) {
458      _eglDestroyArray(dpy->Screens, egl_g3d_free_screen);
459      dpy->Screens = NULL;
460   }
461
462   _eglCleanupDisplay(dpy);
463
464   if (gdpy->smapi)
465      egl_g3d_destroy_st_manager(gdpy->smapi);
466
467   if (gdpy->native)
468      gdpy->native->destroy(gdpy->native);
469
470   FREE(gdpy);
471   dpy->DriverData = NULL;
472
473   return EGL_TRUE;
474}
475
476static EGLBoolean
477egl_g3d_initialize(_EGLDriver *drv, _EGLDisplay *dpy)
478{
479   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
480   struct egl_g3d_display *gdpy;
481   const struct native_platform *nplat;
482
483   nplat = egl_g3d_get_platform(drv, dpy->Platform);
484   if (!nplat)
485      return EGL_FALSE;
486
487   if (dpy->Options.TestOnly)
488      return EGL_TRUE;
489
490   gdpy = CALLOC_STRUCT(egl_g3d_display);
491   if (!gdpy) {
492      _eglError(EGL_BAD_ALLOC, "eglInitialize");
493      goto fail;
494   }
495   gdpy->loader = gdrv->loader;
496   dpy->DriverData = gdpy;
497
498   _eglLog(_EGL_INFO, "use %s for display %p", nplat->name, dpy->PlatformDisplay);
499   gdpy->native = nplat->create_display(dpy->PlatformDisplay,
500         &egl_g3d_native_event_handler, (void *) dpy);
501   if (!gdpy->native) {
502      _eglError(EGL_NOT_INITIALIZED, "eglInitialize(no usable display)");
503      goto fail;
504   }
505
506   if (gdpy->loader->profile_masks[ST_API_OPENGL] & ST_PROFILE_DEFAULT_MASK)
507      dpy->ClientAPIs |= EGL_OPENGL_BIT;
508   if (gdpy->loader->profile_masks[ST_API_OPENGL] & ST_PROFILE_OPENGL_ES1_MASK)
509      dpy->ClientAPIs |= EGL_OPENGL_ES_BIT;
510   if (gdpy->loader->profile_masks[ST_API_OPENGL] & ST_PROFILE_OPENGL_ES2_MASK)
511      dpy->ClientAPIs |= EGL_OPENGL_ES2_BIT;
512   if (gdpy->loader->profile_masks[ST_API_OPENVG] & ST_PROFILE_DEFAULT_MASK)
513      dpy->ClientAPIs |= EGL_OPENVG_BIT;
514
515   gdpy->smapi = egl_g3d_create_st_manager(dpy);
516   if (!gdpy->smapi) {
517      _eglError(EGL_NOT_INITIALIZED,
518            "eglInitialize(failed to create st manager)");
519      goto fail;
520   }
521
522#ifdef EGL_MESA_screen_surface
523   /* enable MESA_screen_surface before adding (and validating) configs */
524   if (gdpy->native->modeset) {
525      dpy->Extensions.MESA_screen_surface = EGL_TRUE;
526      egl_g3d_add_screens(drv, dpy);
527   }
528#endif
529
530   dpy->Extensions.KHR_image_base = EGL_TRUE;
531   if (gdpy->native->get_param(gdpy->native, NATIVE_PARAM_USE_NATIVE_BUFFER))
532      dpy->Extensions.KHR_image_pixmap = EGL_TRUE;
533
534   dpy->Extensions.KHR_reusable_sync = EGL_TRUE;
535   dpy->Extensions.KHR_fence_sync = EGL_TRUE;
536
537   dpy->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
538   dpy->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
539   dpy->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
540
541   if (dpy->Platform == _EGL_PLATFORM_DRM) {
542      dpy->Extensions.MESA_drm_display = EGL_TRUE;
543      if (gdpy->native->buffer)
544         dpy->Extensions.MESA_drm_image = EGL_TRUE;
545   }
546
547   if (egl_g3d_add_configs(drv, dpy, 1) == 1) {
548      _eglError(EGL_NOT_INITIALIZED, "eglInitialize(unable to add configs)");
549      goto fail;
550   }
551
552   dpy->VersionMajor = 1;
553   dpy->VersionMinor = 4;
554
555   return EGL_TRUE;
556
557fail:
558   if (gdpy)
559      egl_g3d_terminate(drv, dpy);
560   return EGL_FALSE;
561}
562
563static _EGLProc
564egl_g3d_get_proc_address(_EGLDriver *drv, const char *procname)
565{
566   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
567   struct st_api *stapi = NULL;
568
569   if (procname && procname[0] == 'v' && procname[1] == 'g')
570      stapi = gdrv->loader->get_st_api(ST_API_OPENVG);
571   else if (procname && procname[0] == 'g' && procname[1] == 'l')
572      stapi = gdrv->loader->get_st_api(ST_API_OPENGL);
573
574   return (_EGLProc) ((stapi) ?
575         stapi->get_proc_address(stapi, procname) : NULL);
576}
577
578_EGLDriver *
579egl_g3d_create_driver(const struct egl_g3d_loader *loader)
580{
581   struct egl_g3d_driver *gdrv;
582
583   gdrv = CALLOC_STRUCT(egl_g3d_driver);
584   if (!gdrv)
585      return NULL;
586
587   gdrv->loader = loader;
588
589   egl_g3d_init_driver_api(&gdrv->base);
590   gdrv->base.API.Initialize = egl_g3d_initialize;
591   gdrv->base.API.Terminate = egl_g3d_terminate;
592   gdrv->base.API.GetProcAddress = egl_g3d_get_proc_address;
593
594   /* to be filled by the caller */
595   gdrv->base.Name = NULL;
596   gdrv->base.Unload = NULL;
597
598   return &gdrv->base;
599}
600
601void
602egl_g3d_destroy_driver(_EGLDriver *drv)
603{
604   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
605   FREE(gdrv);
606}
607