egl_g3d_api.c revision 7c4e9dcdceec1112c91206619fe8b0885be99a79 
1/*
2 * Mesa 3-D graphics library
3 * Version:  7.9
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_inlines.h"
33#include "util/u_box.h"
34
35#include "egl_g3d.h"
36#include "egl_g3d_api.h"
37#include "egl_g3d_image.h"
38#include "egl_g3d_sync.h"
39#include "egl_g3d_st.h"
40#include "native.h"
41
42/**
43 * Return the state tracker for the given context.
44 */
45static struct st_api *
46egl_g3d_choose_st(_EGLDriver *drv, _EGLContext *ctx,
47                  enum st_profile_type *profile)
48{
49   struct st_api *stapi;
50   EGLint api = -1;
51
52   *profile = ST_PROFILE_DEFAULT;
53
54   switch (ctx->ClientAPI) {
55   case EGL_OPENGL_ES_API:
56      switch (ctx->ClientVersion) {
57      case 1:
58         api = ST_API_OPENGL;
59         *profile = ST_PROFILE_OPENGL_ES1;
60         break;
61      case 2:
62         api = ST_API_OPENGL;
63         *profile = ST_PROFILE_OPENGL_ES2;
64         break;
65      default:
66         _eglLog(_EGL_WARNING, "unknown client version %d",
67               ctx->ClientVersion);
68         break;
69      }
70      break;
71   case EGL_OPENVG_API:
72      api = ST_API_OPENVG;
73      break;
74   case EGL_OPENGL_API:
75      api = ST_API_OPENGL;
76      break;
77   default:
78      _eglLog(_EGL_WARNING, "unknown client API 0x%04x", ctx->ClientAPI);
79      break;
80   }
81
82   stapi = egl_g3d_get_st_api(drv, api);
83   if (stapi && !(stapi->profile_mask & (1 << *profile)))
84      stapi = NULL;
85
86   return stapi;
87}
88
89static int
90egl_g3d_compare_config(const _EGLConfig *conf1, const _EGLConfig *conf2,
91                       void *priv_data)
92{
93   const _EGLConfig *criteria = (const _EGLConfig *) priv_data;
94
95   /* EGL_NATIVE_VISUAL_TYPE ignored? */
96   return _eglCompareConfigs(conf1, conf2, criteria, EGL_TRUE);
97}
98
99static EGLBoolean
100egl_g3d_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
101{
102   if (!_eglMatchConfig(conf, criteria))
103      return EGL_FALSE;
104
105   if (criteria->MatchNativePixmap != EGL_NONE &&
106       criteria->MatchNativePixmap != EGL_DONT_CARE) {
107      struct egl_g3d_display *gdpy = egl_g3d_display(conf->Display);
108      struct egl_g3d_config *gconf = egl_g3d_config(conf);
109      EGLNativePixmapType pix =
110         (EGLNativePixmapType) criteria->MatchNativePixmap;
111
112      if (!gdpy->native->is_pixmap_supported(gdpy->native, pix, gconf->native))
113         return EGL_FALSE;
114   }
115
116   return EGL_TRUE;
117}
118
119static EGLBoolean
120egl_g3d_choose_config(_EGLDriver *drv, _EGLDisplay *dpy, const EGLint *attribs,
121                      EGLConfig *configs, EGLint size, EGLint *num_configs)
122{
123   _EGLConfig **tmp_configs, criteria;
124   EGLint tmp_size, i;
125
126   if (!num_configs)
127      return _eglError(EGL_BAD_PARAMETER, "eglChooseConfigs");
128
129   if (!_eglParseConfigAttribList(&criteria, dpy, attribs))
130      return _eglError(EGL_BAD_ATTRIBUTE, "eglChooseConfig");
131
132   /* get the number of matched configs */
133   tmp_size = _eglFilterArray(dpy->Configs, NULL, 0,
134         (_EGLArrayForEach) egl_g3d_match_config, (void *) &criteria);
135   if (!tmp_size) {
136      *num_configs = tmp_size;
137      return EGL_TRUE;
138   }
139
140   tmp_configs = MALLOC(sizeof(tmp_configs[0]) * tmp_size);
141   if (!tmp_configs)
142      return _eglError(EGL_BAD_ALLOC, "eglChooseConfig(out of memory)");
143
144   /* get the matched configs */
145   _eglFilterArray(dpy->Configs, (void **) tmp_configs, tmp_size,
146         (_EGLArrayForEach) egl_g3d_match_config, (void *) &criteria);
147
148   /* perform sorting of configs */
149   if (configs && tmp_size) {
150      _eglSortConfigs((const _EGLConfig **) tmp_configs, tmp_size,
151            egl_g3d_compare_config, (void *) &criteria);
152      tmp_size = MIN2(tmp_size, size);
153      for (i = 0; i < tmp_size; i++)
154         configs[i] = _eglGetConfigHandle(tmp_configs[i]);
155   }
156
157   FREE(tmp_configs);
158
159   *num_configs = tmp_size;
160
161   return EGL_TRUE;
162}
163
164static _EGLContext *
165egl_g3d_create_context(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf,
166                       _EGLContext *share, const EGLint *attribs)
167{
168   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
169   struct egl_g3d_context *gshare = egl_g3d_context(share);
170   struct egl_g3d_config *gconf = egl_g3d_config(conf);
171   struct egl_g3d_context *gctx;
172   struct st_context_attribs stattribs;
173
174   gctx = CALLOC_STRUCT(egl_g3d_context);
175   if (!gctx) {
176      _eglError(EGL_BAD_ALLOC, "eglCreateContext");
177      return NULL;
178   }
179
180   if (!_eglInitContext(&gctx->base, dpy, conf, attribs)) {
181      FREE(gctx);
182      return NULL;
183   }
184
185   memset(&stattribs, 0, sizeof(stattribs));
186   if (gconf)
187      stattribs.visual = gconf->stvis;
188
189   gctx->stapi = egl_g3d_choose_st(drv, &gctx->base, &stattribs.profile);
190   if (!gctx->stapi) {
191      FREE(gctx);
192      return NULL;
193   }
194
195   gctx->stctxi = gctx->stapi->create_context(gctx->stapi, gdpy->smapi,
196         &stattribs, (gshare) ? gshare->stctxi : NULL);
197   if (!gctx->stctxi) {
198      FREE(gctx);
199      return NULL;
200   }
201
202   gctx->stctxi->st_manager_private = (void *) &gctx->base;
203
204   return &gctx->base;
205}
206
207/**
208 * Destroy a context.
209 */
210static void
211destroy_context(_EGLDisplay *dpy, _EGLContext *ctx)
212{
213   struct egl_g3d_context *gctx = egl_g3d_context(ctx);
214
215   /* FIXME a context might live longer than its display */
216   if (!dpy->Initialized)
217      _eglLog(_EGL_FATAL, "destroy a context with an unitialized display");
218
219   gctx->stctxi->destroy(gctx->stctxi);
220
221   FREE(gctx);
222}
223
224static EGLBoolean
225egl_g3d_destroy_context(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx)
226{
227   if (_eglPutContext(ctx))
228      destroy_context(dpy, ctx);
229   return EGL_TRUE;
230}
231
232struct egl_g3d_create_surface_arg {
233   EGLint type;
234   union {
235      EGLNativeWindowType win;
236      EGLNativePixmapType pix;
237   } u;
238};
239
240static _EGLSurface *
241egl_g3d_create_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf,
242                       struct egl_g3d_create_surface_arg *arg,
243                       const EGLint *attribs)
244{
245   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
246   struct egl_g3d_config *gconf = egl_g3d_config(conf);
247   struct egl_g3d_surface *gsurf;
248   struct native_surface *nsurf;
249   const char *err;
250
251   switch (arg->type) {
252   case EGL_WINDOW_BIT:
253      err = "eglCreateWindowSurface";
254      break;
255   case EGL_PIXMAP_BIT:
256      err = "eglCreatePixmapSurface";
257      break;
258#ifdef EGL_MESA_screen_surface
259   case EGL_SCREEN_BIT_MESA:
260      err = "eglCreateScreenSurface";
261      break;
262#endif
263   default:
264      err = "eglCreateUnknownSurface";
265      break;
266   }
267
268   gsurf = CALLOC_STRUCT(egl_g3d_surface);
269   if (!gsurf) {
270      _eglError(EGL_BAD_ALLOC, err);
271      return NULL;
272   }
273
274   if (!_eglInitSurface(&gsurf->base, dpy, arg->type, conf, attribs)) {
275      FREE(gsurf);
276      return NULL;
277   }
278
279   /* create the native surface */
280   switch (arg->type) {
281   case EGL_WINDOW_BIT:
282      nsurf = gdpy->native->create_window_surface(gdpy->native,
283            arg->u.win, gconf->native);
284      break;
285   case EGL_PIXMAP_BIT:
286      nsurf = gdpy->native->create_pixmap_surface(gdpy->native,
287            arg->u.pix, gconf->native);
288      break;
289#ifdef EGL_MESA_screen_surface
290   case EGL_SCREEN_BIT_MESA:
291      /* prefer back buffer (move to _eglInitSurface?) */
292      gsurf->base.RenderBuffer = EGL_BACK_BUFFER;
293      nsurf = gdpy->native->modeset->create_scanout_surface(gdpy->native,
294            gconf->native, gsurf->base.Width, gsurf->base.Height);
295      break;
296#endif
297   default:
298      nsurf = NULL;
299      break;
300   }
301
302   if (!nsurf) {
303      FREE(gsurf);
304      return NULL;
305   }
306   /* initialize the geometry */
307   if (!nsurf->validate(nsurf, 0x0, &gsurf->sequence_number, NULL,
308            &gsurf->base.Width, &gsurf->base.Height)) {
309      nsurf->destroy(nsurf);
310      FREE(gsurf);
311      return NULL;
312   }
313
314   gsurf->stvis = gconf->stvis;
315   if (gsurf->base.RenderBuffer == EGL_SINGLE_BUFFER &&
316       gconf->stvis.buffer_mask & ST_ATTACHMENT_FRONT_LEFT_MASK)
317      gsurf->stvis.render_buffer = ST_ATTACHMENT_FRONT_LEFT;
318
319   gsurf->stfbi = egl_g3d_create_st_framebuffer(&gsurf->base);
320   if (!gsurf->stfbi) {
321      nsurf->destroy(nsurf);
322      FREE(gsurf);
323      return NULL;
324   }
325
326   nsurf->user_data = &gsurf->base;
327   gsurf->native = nsurf;
328
329   return &gsurf->base;
330}
331
332static _EGLSurface *
333egl_g3d_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
334                              _EGLConfig *conf, EGLNativeWindowType win,
335                              const EGLint *attribs)
336{
337   struct egl_g3d_create_surface_arg arg;
338
339   memset(&arg, 0, sizeof(arg));
340   arg.type = EGL_WINDOW_BIT;
341   arg.u.win = win;
342
343   return egl_g3d_create_surface(drv, dpy, conf, &arg, attribs);
344}
345
346static _EGLSurface *
347egl_g3d_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
348                              _EGLConfig *conf, EGLNativePixmapType pix,
349                              const EGLint *attribs)
350{
351   struct egl_g3d_create_surface_arg arg;
352
353   memset(&arg, 0, sizeof(arg));
354   arg.type = EGL_PIXMAP_BIT;
355   arg.u.pix = pix;
356
357   return egl_g3d_create_surface(drv, dpy, conf, &arg, attribs);
358}
359
360static struct egl_g3d_surface *
361create_pbuffer_surface(_EGLDisplay *dpy, _EGLConfig *conf,
362                       const EGLint *attribs, const char *func)
363{
364   struct egl_g3d_config *gconf = egl_g3d_config(conf);
365   struct egl_g3d_surface *gsurf;
366
367   gsurf = CALLOC_STRUCT(egl_g3d_surface);
368   if (!gsurf) {
369      _eglError(EGL_BAD_ALLOC, func);
370      return NULL;
371   }
372
373   if (!_eglInitSurface(&gsurf->base, dpy, EGL_PBUFFER_BIT, conf, attribs)) {
374      FREE(gsurf);
375      return NULL;
376   }
377
378   gsurf->stvis = gconf->stvis;
379
380   gsurf->stfbi = egl_g3d_create_st_framebuffer(&gsurf->base);
381   if (!gsurf->stfbi) {
382      FREE(gsurf);
383      return NULL;
384   }
385
386   return gsurf;
387}
388
389static _EGLSurface *
390egl_g3d_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
391                               _EGLConfig *conf, const EGLint *attribs)
392{
393   struct egl_g3d_surface *gsurf;
394
395   gsurf = create_pbuffer_surface(dpy, conf, attribs,
396         "eglCreatePbufferSurface");
397   if (!gsurf)
398      return NULL;
399
400   gsurf->client_buffer_type = EGL_NONE;
401
402   return &gsurf->base;
403}
404
405static _EGLSurface *
406egl_g3d_create_pbuffer_from_client_buffer(_EGLDriver *drv, _EGLDisplay *dpy,
407                                          EGLenum buftype,
408                                          EGLClientBuffer buffer,
409                                          _EGLConfig *conf,
410                                          const EGLint *attribs)
411{
412   struct egl_g3d_surface *gsurf;
413   struct pipe_resource *ptex = NULL;
414   EGLint pbuffer_attribs[32];
415   EGLint count, i;
416
417   switch (buftype) {
418   case EGL_OPENVG_IMAGE:
419      break;
420   default:
421      _eglError(EGL_BAD_PARAMETER, "eglCreatePbufferFromClientBuffer");
422      return NULL;
423      break;
424   }
425
426   /* parse the attributes first */
427   count = 0;
428   for (i = 0; attribs && attribs[i] != EGL_NONE; i++) {
429      EGLint attr = attribs[i++];
430      EGLint val = attribs[i];
431      EGLint err = EGL_SUCCESS;
432
433      switch (attr) {
434      case EGL_TEXTURE_FORMAT:
435      case EGL_TEXTURE_TARGET:
436      case EGL_MIPMAP_TEXTURE:
437         pbuffer_attribs[count++] = attr;
438         pbuffer_attribs[count++] = val;
439         break;
440      default:
441         err = EGL_BAD_ATTRIBUTE;
442         break;
443      }
444      /* bail out */
445      if (err != EGL_SUCCESS) {
446         _eglError(err, "eglCreatePbufferFromClientBuffer");
447         return NULL;
448      }
449   }
450
451   pbuffer_attribs[count++] = EGL_NONE;
452
453   gsurf = create_pbuffer_surface(dpy, conf, pbuffer_attribs,
454         "eglCreatePbufferFromClientBuffer");
455   if (!gsurf)
456      return NULL;
457
458   gsurf->client_buffer_type = buftype;
459   gsurf->client_buffer = buffer;
460
461   /* validate now so that it fails if the client buffer is invalid */
462   if (!gsurf->stfbi->validate(gsurf->stfbi,
463            &gsurf->stvis.render_buffer, 1, &ptex)) {
464      egl_g3d_destroy_st_framebuffer(gsurf->stfbi);
465      FREE(gsurf);
466      return NULL;
467   }
468   pipe_resource_reference(&ptex, NULL);
469
470   return &gsurf->base;
471}
472
473/**
474 * Destroy a surface.
475 */
476static void
477destroy_surface(_EGLDisplay *dpy, _EGLSurface *surf)
478{
479   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
480
481   /* FIXME a surface might live longer than its display */
482   if (!dpy->Initialized)
483      _eglLog(_EGL_FATAL, "destroy a surface with an unitialized display");
484
485   pipe_resource_reference(&gsurf->render_texture, NULL);
486   egl_g3d_destroy_st_framebuffer(gsurf->stfbi);
487   if (gsurf->native)
488      gsurf->native->destroy(gsurf->native);
489   FREE(gsurf);
490}
491
492static EGLBoolean
493egl_g3d_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
494{
495   if (_eglPutSurface(surf))
496      destroy_surface(dpy, surf);
497   return EGL_TRUE;
498}
499
500static EGLBoolean
501egl_g3d_make_current(_EGLDriver *drv, _EGLDisplay *dpy,
502                     _EGLSurface *draw, _EGLSurface *read, _EGLContext *ctx)
503{
504   struct egl_g3d_context *gctx = egl_g3d_context(ctx);
505   struct egl_g3d_surface *gdraw = egl_g3d_surface(draw);
506   struct egl_g3d_surface *gread = egl_g3d_surface(read);
507   struct egl_g3d_context *old_gctx;
508   _EGLContext *old_ctx;
509   _EGLSurface *old_draw, *old_read;
510   EGLBoolean ok = EGL_TRUE;
511
512   /* make new bindings */
513   if (!_eglBindContext(ctx, draw, read, &old_ctx, &old_draw, &old_read))
514      return EGL_FALSE;
515
516   old_gctx = egl_g3d_context(old_ctx);
517   if (old_gctx) {
518      /* flush old context */
519      old_gctx->stctxi->flush(old_gctx->stctxi, ST_FLUSH_FRONT, NULL);
520   }
521
522   if (gctx) {
523      ok = gctx->stapi->make_current(gctx->stapi, gctx->stctxi,
524            (gdraw) ? gdraw->stfbi : NULL, (gread) ? gread->stfbi : NULL);
525      if (ok) {
526         if (gdraw) {
527            gctx->stctxi->notify_invalid_framebuffer(gctx->stctxi,
528                  gdraw->stfbi);
529
530            if (gdraw->base.Type == EGL_WINDOW_BIT) {
531               gctx->base.WindowRenderBuffer =
532                  (gdraw->stvis.render_buffer == ST_ATTACHMENT_FRONT_LEFT) ?
533                  EGL_SINGLE_BUFFER : EGL_BACK_BUFFER;
534            }
535         }
536         if (gread && gread != gdraw) {
537            gctx->stctxi->notify_invalid_framebuffer(gctx->stctxi,
538                  gread->stfbi);
539         }
540      }
541   }
542   else if (old_gctx) {
543      ok = old_gctx->stapi->make_current(old_gctx->stapi, NULL, NULL, NULL);
544      if (ok)
545         old_gctx->base.WindowRenderBuffer = EGL_NONE;
546   }
547
548   if (ok) {
549      if (_eglPutContext(old_ctx))
550         destroy_context(dpy, old_ctx);
551      if (_eglPutSurface(old_draw))
552         destroy_surface(dpy, old_draw);
553      if (_eglPutSurface(old_read))
554         destroy_surface(dpy, old_read);
555   }
556   else {
557      /* undo the previous _eglBindContext */
558      _eglBindContext(old_ctx, old_draw, old_read, &ctx, &draw, &read);
559      assert(&gctx->base == ctx &&
560             &gdraw->base == draw &&
561             &gread->base == read);
562
563      _eglPutSurface(draw);
564      _eglPutSurface(read);
565      _eglPutContext(ctx);
566
567      _eglPutSurface(old_draw);
568      _eglPutSurface(old_read);
569      _eglPutContext(old_ctx);
570   }
571
572   return ok;
573}
574
575static EGLBoolean
576egl_g3d_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
577{
578   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
579   _EGLContext *ctx = _eglGetCurrentContext();
580   struct egl_g3d_context *gctx = NULL;
581
582   /* no-op for pixmap or pbuffer surface */
583   if (gsurf->base.Type == EGL_PIXMAP_BIT ||
584       gsurf->base.Type == EGL_PBUFFER_BIT)
585      return EGL_TRUE;
586
587   /* or when the surface is single-buffered */
588   if (gsurf->stvis.render_buffer == ST_ATTACHMENT_FRONT_LEFT)
589      return EGL_TRUE;
590
591   if (ctx && ctx->DrawSurface == surf)
592      gctx = egl_g3d_context(ctx);
593
594   /* flush if the surface is current */
595   if (gctx) {
596      gctx->stctxi->flush(gctx->stctxi, ST_FLUSH_FRONT, NULL);
597   }
598
599   return gsurf->native->present(gsurf->native,
600         NATIVE_ATTACHMENT_BACK_LEFT,
601         gsurf->base.SwapBehavior == EGL_BUFFER_PRESERVED,
602         gsurf->base.SwapInterval);
603}
604
605static EGLBoolean
606egl_g3d_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
607                     EGLNativePixmapType target)
608{
609   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
610   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
611   _EGLContext *ctx = _eglGetCurrentContext();
612
613   if (!gsurf->render_texture)
614      return EGL_TRUE;
615
616   /* flush if the surface is current */
617   if (ctx && ctx->DrawSurface == &gsurf->base) {
618      struct egl_g3d_context *gctx = egl_g3d_context(ctx);
619      gctx->stctxi->flush(gctx->stctxi, ST_FLUSH_FRONT, NULL);
620   }
621
622   return gdpy->native->copy_to_pixmap(gdpy->native,
623         target, gsurf->render_texture);
624}
625
626static EGLBoolean
627egl_g3d_wait_client(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx)
628{
629   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
630   struct egl_g3d_context *gctx = egl_g3d_context(ctx);
631   struct pipe_screen *screen = gdpy->native->screen;
632   struct pipe_fence_handle *fence = NULL;
633
634   gctx->stctxi->flush(gctx->stctxi, ST_FLUSH_FRONT, &fence);
635   if (fence) {
636      screen->fence_finish(screen, fence, PIPE_TIMEOUT_INFINITE);
637      screen->fence_reference(screen, &fence, NULL);
638   }
639
640   return EGL_TRUE;
641}
642
643static EGLBoolean
644egl_g3d_wait_native(_EGLDriver *drv, _EGLDisplay *dpy, EGLint engine)
645{
646   _EGLContext *ctx = _eglGetCurrentContext();
647
648   if (engine != EGL_CORE_NATIVE_ENGINE)
649      return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
650
651   if (ctx && ctx->DrawSurface) {
652      struct egl_g3d_surface *gsurf = egl_g3d_surface(ctx->DrawSurface);
653
654      if (gsurf->native)
655         gsurf->native->wait(gsurf->native);
656   }
657
658   return EGL_TRUE;
659}
660
661static EGLBoolean
662egl_g3d_bind_tex_image(_EGLDriver *drv, _EGLDisplay *dpy,
663                       _EGLSurface *surf, EGLint buffer)
664{
665   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
666   _EGLContext *es1 = _eglGetAPIContext(EGL_OPENGL_ES_API);
667   struct egl_g3d_context *gctx;
668   enum pipe_format internal_format;
669   enum st_texture_type target;
670
671   if (!gsurf || gsurf->base.Type != EGL_PBUFFER_BIT)
672      return _eglError(EGL_BAD_SURFACE, "eglBindTexImage");
673   if (buffer != EGL_BACK_BUFFER)
674      return _eglError(EGL_BAD_PARAMETER, "eglBindTexImage");
675   if (gsurf->base.BoundToTexture)
676      return _eglError(EGL_BAD_ACCESS, "eglBindTexImage");
677
678   switch (gsurf->base.TextureFormat) {
679   case EGL_TEXTURE_RGB:
680      internal_format = PIPE_FORMAT_R8G8B8_UNORM;
681      break;
682   case EGL_TEXTURE_RGBA:
683      internal_format = PIPE_FORMAT_B8G8R8A8_UNORM;
684      break;
685   default:
686      return _eglError(EGL_BAD_MATCH, "eglBindTexImage");
687   }
688
689   switch (gsurf->base.TextureTarget) {
690   case EGL_TEXTURE_2D:
691      target = ST_TEXTURE_2D;
692      break;
693   default:
694      return _eglError(EGL_BAD_MATCH, "eglBindTexImage");
695   }
696
697   if (!es1)
698      return EGL_TRUE;
699   if (!gsurf->render_texture)
700      return EGL_FALSE;
701
702   /* flush properly if the surface is bound */
703   if (gsurf->base.CurrentContext) {
704      gctx = egl_g3d_context(gsurf->base.CurrentContext);
705      gctx->stctxi->flush(gctx->stctxi, ST_FLUSH_FRONT, NULL);
706   }
707
708   gctx = egl_g3d_context(es1);
709   if (gctx->stctxi->teximage) {
710      if (!gctx->stctxi->teximage(gctx->stctxi, target,
711               gsurf->base.MipmapLevel, internal_format,
712               gsurf->render_texture, gsurf->base.MipmapTexture))
713         return EGL_FALSE;
714      gsurf->base.BoundToTexture = EGL_TRUE;
715   }
716
717   return EGL_TRUE;
718}
719
720static EGLBoolean
721egl_g3d_release_tex_image(_EGLDriver *drv, _EGLDisplay *dpy,
722                          _EGLSurface *surf, EGLint buffer)
723{
724   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
725
726   if (!gsurf || gsurf->base.Type != EGL_PBUFFER_BIT ||
727       !gsurf->base.BoundToTexture)
728      return _eglError(EGL_BAD_SURFACE, "eglReleaseTexImage");
729   if (buffer != EGL_BACK_BUFFER)
730      return _eglError(EGL_BAD_PARAMETER, "eglReleaseTexImage");
731
732   if (gsurf->render_texture) {
733      _EGLContext *ctx = _eglGetAPIContext(EGL_OPENGL_ES_API);
734      struct egl_g3d_context *gctx = egl_g3d_context(ctx);
735
736      /* what if the context the surface binds to is no longer current? */
737      if (gctx) {
738         gctx->stctxi->teximage(gctx->stctxi, ST_TEXTURE_2D,
739               gsurf->base.MipmapLevel, PIPE_FORMAT_NONE, NULL, FALSE);
740      }
741   }
742
743   gsurf->base.BoundToTexture = EGL_FALSE;
744
745   return EGL_TRUE;
746}
747
748#ifdef EGL_MESA_screen_surface
749
750static _EGLSurface *
751egl_g3d_create_screen_surface(_EGLDriver *drv, _EGLDisplay *dpy,
752                              _EGLConfig *conf, const EGLint *attribs)
753{
754   struct egl_g3d_create_surface_arg arg;
755
756   memset(&arg, 0, sizeof(arg));
757   arg.type = EGL_SCREEN_BIT_MESA;
758
759   return egl_g3d_create_surface(drv, dpy, conf, &arg, attribs);
760}
761
762static EGLBoolean
763egl_g3d_show_screen_surface(_EGLDriver *drv, _EGLDisplay *dpy,
764                            _EGLScreen *scr, _EGLSurface *surf,
765                            _EGLMode *mode)
766{
767   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
768   struct egl_g3d_screen *gscr = egl_g3d_screen(scr);
769   struct egl_g3d_surface *gsurf = egl_g3d_surface(surf);
770   struct native_surface *nsurf;
771   const struct native_mode *nmode;
772   EGLBoolean changed;
773
774   if (gsurf) {
775      EGLint idx;
776
777      if (!mode)
778         return _eglError(EGL_BAD_MATCH, "eglShowSurfaceMESA");
779      if (gsurf->base.Type != EGL_SCREEN_BIT_MESA)
780         return _eglError(EGL_BAD_SURFACE, "eglShowScreenSurfaceMESA");
781      if (gsurf->base.Width < mode->Width || gsurf->base.Height < mode->Height)
782         return _eglError(EGL_BAD_MATCH,
783               "eglShowSurfaceMESA(surface smaller than mode size)");
784
785      /* find the index of the mode */
786      for (idx = 0; idx < gscr->base.NumModes; idx++)
787         if (mode == &gscr->base.Modes[idx])
788            break;
789      if (idx >= gscr->base.NumModes) {
790         return _eglError(EGL_BAD_MODE_MESA,
791               "eglShowSurfaceMESA(unknown mode)");
792      }
793
794      nsurf = gsurf->native;
795      nmode = gscr->native_modes[idx];
796   }
797   else {
798      if (mode)
799         return _eglError(EGL_BAD_MATCH, "eglShowSurfaceMESA");
800
801      /* disable the screen */
802      nsurf = NULL;
803      nmode = NULL;
804   }
805
806   /* TODO surface panning by CRTC choosing */
807   changed = gdpy->native->modeset->program(gdpy->native, 0, nsurf,
808         gscr->base.OriginX, gscr->base.OriginY, &gscr->native, 1, nmode);
809   if (changed) {
810      gscr->base.CurrentSurface = &gsurf->base;
811      gscr->base.CurrentMode = mode;
812   }
813
814   return changed;
815}
816
817#endif /* EGL_MESA_screen_surface */
818
819#ifdef EGL_WL_bind_wayland_display
820
821static EGLBoolean
822egl_g3d_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *dpy,
823                                struct wl_display *wl_dpy)
824{
825   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
826
827   if (!gdpy->native->wayland_bufmgr)
828      return EGL_FALSE;
829
830   return gdpy->native->wayland_bufmgr->bind_display(gdpy->native, wl_dpy);
831}
832
833static EGLBoolean
834egl_g3d_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *dpy,
835                                  struct wl_display *wl_dpy)
836{
837   struct egl_g3d_display *gdpy = egl_g3d_display(dpy);
838
839   if (!gdpy->native->wayland_bufmgr)
840      return EGL_FALSE;
841
842   return gdpy->native->wayland_bufmgr->unbind_display(gdpy->native, wl_dpy);
843}
844
845#endif /* EGL_WL_bind_wayland_display */
846
847void
848egl_g3d_init_driver_api(_EGLDriver *drv)
849{
850   _eglInitDriverFallbacks(drv);
851
852   drv->API.ChooseConfig = egl_g3d_choose_config;
853
854   drv->API.CreateContext = egl_g3d_create_context;
855   drv->API.DestroyContext = egl_g3d_destroy_context;
856   drv->API.CreateWindowSurface = egl_g3d_create_window_surface;
857   drv->API.CreatePixmapSurface = egl_g3d_create_pixmap_surface;
858   drv->API.CreatePbufferSurface = egl_g3d_create_pbuffer_surface;
859   drv->API.CreatePbufferFromClientBuffer = egl_g3d_create_pbuffer_from_client_buffer;
860   drv->API.DestroySurface = egl_g3d_destroy_surface;
861   drv->API.MakeCurrent = egl_g3d_make_current;
862   drv->API.SwapBuffers = egl_g3d_swap_buffers;
863   drv->API.CopyBuffers = egl_g3d_copy_buffers;
864   drv->API.WaitClient = egl_g3d_wait_client;
865   drv->API.WaitNative = egl_g3d_wait_native;
866
867   drv->API.BindTexImage = egl_g3d_bind_tex_image;
868   drv->API.ReleaseTexImage = egl_g3d_release_tex_image;
869
870   drv->API.CreateImageKHR = egl_g3d_create_image;
871   drv->API.DestroyImageKHR = egl_g3d_destroy_image;
872#ifdef EGL_MESA_drm_image
873   drv->API.CreateDRMImageMESA = egl_g3d_create_drm_image;
874   drv->API.ExportDRMImageMESA = egl_g3d_export_drm_image;
875#endif
876#ifdef EGL_WL_bind_wayland_display
877   drv->API.BindWaylandDisplayWL = egl_g3d_bind_wayland_display_wl;
878   drv->API.UnbindWaylandDisplayWL = egl_g3d_unbind_wayland_display_wl;
879
880#endif
881
882#ifdef EGL_KHR_reusable_sync
883   drv->API.CreateSyncKHR = egl_g3d_create_sync;
884   drv->API.DestroySyncKHR = egl_g3d_destroy_sync;
885   drv->API.ClientWaitSyncKHR = egl_g3d_client_wait_sync;
886   drv->API.SignalSyncKHR = egl_g3d_signal_sync;
887#endif
888
889#ifdef EGL_MESA_screen_surface
890   drv->API.CreateScreenSurfaceMESA = egl_g3d_create_screen_surface;
891   drv->API.ShowScreenSurfaceMESA = egl_g3d_show_screen_surface;
892#endif
893}
894