egl_g3d_api.c revision 2a15553e431f04d13b757a3a76e4eb7d794f1219
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 34#include "egl_g3d.h" 35#include "egl_g3d_api.h" 36#include "egl_g3d_image.h" 37#include "egl_g3d_st.h" 38#include "native.h" 39 40/** 41 * Return the state tracker for the given context. 42 */ 43static struct st_api * 44egl_g3d_choose_st(_EGLDriver *drv, _EGLContext *ctx) 45{ 46 struct egl_g3d_driver *gdrv = egl_g3d_driver(drv); 47 struct st_api *stapi; 48 EGLint idx = -1; 49 50 switch (ctx->ClientAPI) { 51 case EGL_OPENGL_ES_API: 52 switch (ctx->ClientVersion) { 53 case 1: 54 idx = ST_API_OPENGL_ES1; 55 break; 56 case 2: 57 idx = ST_API_OPENGL_ES2; 58 break; 59 default: 60 _eglLog(_EGL_WARNING, "unknown client version %d", 61 ctx->ClientVersion); 62 break; 63 } 64 break; 65 case EGL_OPENVG_API: 66 idx = ST_API_OPENVG; 67 break; 68 case EGL_OPENGL_API: 69 idx = ST_API_OPENGL; 70 break; 71 default: 72 _eglLog(_EGL_WARNING, "unknown client API 0x%04x", ctx->ClientAPI); 73 break; 74 } 75 76 stapi = (idx >= 0) ? gdrv->stapis[idx] : NULL; 77 return stapi; 78} 79 80static _EGLContext * 81egl_g3d_create_context(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, 82 _EGLContext *share, const EGLint *attribs) 83{ 84 struct egl_g3d_display *gdpy = egl_g3d_display(dpy); 85 struct egl_g3d_context *gshare = egl_g3d_context(share); 86 struct egl_g3d_config *gconf = egl_g3d_config(conf); 87 struct egl_g3d_context *gctx; 88 89 gctx = CALLOC_STRUCT(egl_g3d_context); 90 if (!gctx) { 91 _eglError(EGL_BAD_ALLOC, "eglCreateContext"); 92 return NULL; 93 } 94 95 if (!_eglInitContext(&gctx->base, dpy, conf, attribs)) { 96 FREE(gctx); 97 return NULL; 98 } 99 100 gctx->stapi = egl_g3d_choose_st(drv, &gctx->base); 101 if (!gctx->stapi) { 102 FREE(gctx); 103 return NULL; 104 } 105 106 gctx->stctxi = gctx->stapi->create_context(gctx->stapi, gdpy->smapi, 107 &gconf->stvis, (gshare) ? gshare->stctxi : NULL); 108 if (!gctx->stctxi) { 109 FREE(gctx); 110 return NULL; 111 } 112 113 gctx->stctxi->st_manager_private = (void *) &gctx->base; 114 115 return &gctx->base; 116} 117 118/** 119 * Destroy a context. 120 */ 121static void 122destroy_context(_EGLDisplay *dpy, _EGLContext *ctx) 123{ 124 struct egl_g3d_context *gctx = egl_g3d_context(ctx); 125 126 /* FIXME a context might live longer than its display */ 127 if (!dpy->Initialized) 128 _eglLog(_EGL_FATAL, "destroy a context with an unitialized display"); 129 130 gctx->stctxi->destroy(gctx->stctxi); 131 132 FREE(gctx); 133} 134 135static EGLBoolean 136egl_g3d_destroy_context(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx) 137{ 138 if (!_eglIsContextBound(ctx)) 139 destroy_context(dpy, ctx); 140 return EGL_TRUE; 141} 142 143struct egl_g3d_create_surface_arg { 144 EGLint type; 145 union { 146 EGLNativeWindowType win; 147 EGLNativePixmapType pix; 148 } u; 149}; 150 151static _EGLSurface * 152egl_g3d_create_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, 153 struct egl_g3d_create_surface_arg *arg, 154 const EGLint *attribs) 155{ 156 struct egl_g3d_display *gdpy = egl_g3d_display(dpy); 157 struct egl_g3d_config *gconf = egl_g3d_config(conf); 158 struct egl_g3d_surface *gsurf; 159 struct native_surface *nsurf; 160 const char *err; 161 162 switch (arg->type) { 163 case EGL_WINDOW_BIT: 164 err = "eglCreateWindowSurface"; 165 break; 166 case EGL_PIXMAP_BIT: 167 err = "eglCreatePixmapSurface"; 168 break; 169#ifdef EGL_MESA_screen_surface 170 case EGL_SCREEN_BIT_MESA: 171 err = "eglCreateScreenSurface"; 172 break; 173#endif 174 default: 175 err = "eglCreateUnknownSurface"; 176 break; 177 } 178 179 gsurf = CALLOC_STRUCT(egl_g3d_surface); 180 if (!gsurf) { 181 _eglError(EGL_BAD_ALLOC, err); 182 return NULL; 183 } 184 185 if (!_eglInitSurface(&gsurf->base, dpy, arg->type, conf, attribs)) { 186 FREE(gsurf); 187 return NULL; 188 } 189 190 /* create the native surface */ 191 switch (arg->type) { 192 case EGL_WINDOW_BIT: 193 nsurf = gdpy->native->create_window_surface(gdpy->native, 194 arg->u.win, gconf->native); 195 break; 196 case EGL_PIXMAP_BIT: 197 nsurf = gdpy->native->create_pixmap_surface(gdpy->native, 198 arg->u.pix, gconf->native); 199 break; 200#ifdef EGL_MESA_screen_surface 201 case EGL_SCREEN_BIT_MESA: 202 /* prefer back buffer (move to _eglInitSurface?) */ 203 gsurf->base.RenderBuffer = EGL_BACK_BUFFER; 204 nsurf = gdpy->native->modeset->create_scanout_surface(gdpy->native, 205 gconf->native, gsurf->base.Width, gsurf->base.Height); 206 break; 207#endif 208 default: 209 nsurf = NULL; 210 break; 211 } 212 213 if (!nsurf) { 214 FREE(gsurf); 215 return NULL; 216 } 217 /* initialize the geometry */ 218 if (!nsurf->validate(nsurf, 0x0, &gsurf->sequence_number, NULL, 219 &gsurf->base.Width, &gsurf->base.Height)) { 220 nsurf->destroy(nsurf); 221 FREE(gsurf); 222 return NULL; 223 } 224 225 gsurf->stvis = gconf->stvis; 226 if (gsurf->base.RenderBuffer == EGL_SINGLE_BUFFER) 227 gsurf->stvis.render_buffer = ST_ATTACHMENT_FRONT_LEFT; 228 229 gsurf->stfbi = egl_g3d_create_st_framebuffer(&gsurf->base); 230 if (!gsurf->stfbi) { 231 nsurf->destroy(nsurf); 232 FREE(gsurf); 233 return NULL; 234 } 235 236 nsurf->user_data = &gsurf->base; 237 gsurf->native = nsurf; 238 239 return &gsurf->base; 240} 241 242static _EGLSurface * 243egl_g3d_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy, 244 _EGLConfig *conf, EGLNativeWindowType win, 245 const EGLint *attribs) 246{ 247 struct egl_g3d_create_surface_arg arg; 248 249 memset(&arg, 0, sizeof(arg)); 250 arg.type = EGL_WINDOW_BIT; 251 arg.u.win = win; 252 253 return egl_g3d_create_surface(drv, dpy, conf, &arg, attribs); 254} 255 256static _EGLSurface * 257egl_g3d_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy, 258 _EGLConfig *conf, EGLNativePixmapType pix, 259 const EGLint *attribs) 260{ 261 struct egl_g3d_create_surface_arg arg; 262 263 memset(&arg, 0, sizeof(arg)); 264 arg.type = EGL_PIXMAP_BIT; 265 arg.u.pix = pix; 266 267 return egl_g3d_create_surface(drv, dpy, conf, &arg, attribs); 268} 269 270static _EGLSurface * 271egl_g3d_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy, 272 _EGLConfig *conf, const EGLint *attribs) 273{ 274 struct egl_g3d_config *gconf = egl_g3d_config(conf); 275 struct egl_g3d_surface *gsurf; 276 277 gsurf = CALLOC_STRUCT(egl_g3d_surface); 278 if (!gsurf) { 279 _eglError(EGL_BAD_ALLOC, "eglCreatePbufferSurface"); 280 return NULL; 281 } 282 283 if (!_eglInitSurface(&gsurf->base, dpy, EGL_PBUFFER_BIT, conf, attribs)) { 284 FREE(gsurf); 285 return NULL; 286 } 287 288 gsurf->stvis = gconf->stvis; 289 290 gsurf->stfbi = egl_g3d_create_st_framebuffer(&gsurf->base); 291 if (!gsurf->stfbi) { 292 FREE(gsurf); 293 return NULL; 294 } 295 296 return &gsurf->base; 297} 298 299/** 300 * Destroy a surface. 301 */ 302static void 303destroy_surface(_EGLDisplay *dpy, _EGLSurface *surf) 304{ 305 struct egl_g3d_surface *gsurf = egl_g3d_surface(surf); 306 307 /* FIXME a surface might live longer than its display */ 308 if (!dpy->Initialized) 309 _eglLog(_EGL_FATAL, "destroy a surface with an unitialized display"); 310 311 pipe_resource_reference(&gsurf->render_texture, NULL); 312 egl_g3d_destroy_st_framebuffer(gsurf->stfbi); 313 if (gsurf->native) 314 gsurf->native->destroy(gsurf->native); 315 FREE(gsurf); 316} 317 318static EGLBoolean 319egl_g3d_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf) 320{ 321 if (!_eglIsSurfaceBound(surf)) 322 destroy_surface(dpy, surf); 323 return EGL_TRUE; 324} 325 326static EGLBoolean 327egl_g3d_make_current(_EGLDriver *drv, _EGLDisplay *dpy, 328 _EGLSurface *draw, _EGLSurface *read, _EGLContext *ctx) 329{ 330 struct egl_g3d_context *gctx = egl_g3d_context(ctx); 331 struct egl_g3d_surface *gdraw = egl_g3d_surface(draw); 332 struct egl_g3d_surface *gread = egl_g3d_surface(read); 333 struct egl_g3d_context *old_gctx; 334 EGLBoolean ok = EGL_TRUE; 335 336 /* bind the new context and return the "orphaned" one */ 337 if (!_eglBindContext(&ctx, &draw, &read)) 338 return EGL_FALSE; 339 old_gctx = egl_g3d_context(ctx); 340 341 if (old_gctx) { 342 /* flush old context */ 343 old_gctx->stctxi->flush(old_gctx->stctxi, 344 PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL); 345 } 346 347 if (gctx) { 348 ok = gctx->stapi->make_current(gctx->stapi, gctx->stctxi, 349 (gdraw) ? gdraw->stfbi : NULL, (gread) ? gread->stfbi : NULL); 350 if (ok) { 351 gctx->stctxi->notify_invalid_framebuffer(gctx->stctxi, gdraw->stfbi); 352 if (gread != gdraw) { 353 gctx->stctxi->notify_invalid_framebuffer(gctx->stctxi, 354 gread->stfbi); 355 } 356 357 if (gdraw->base.Type == EGL_WINDOW_BIT) { 358 gctx->base.WindowRenderBuffer = 359 (gdraw->stvis.render_buffer == ST_ATTACHMENT_FRONT_LEFT) ? 360 EGL_SINGLE_BUFFER : EGL_BACK_BUFFER; 361 } 362 } 363 } 364 else if (old_gctx) { 365 ok = old_gctx->stapi->make_current(old_gctx->stapi, NULL, NULL, NULL); 366 old_gctx->base.WindowRenderBuffer = EGL_NONE; 367 } 368 369 if (ctx && !_eglIsContextLinked(ctx)) 370 destroy_context(dpy, ctx); 371 if (draw && !_eglIsSurfaceLinked(draw)) 372 destroy_surface(dpy, draw); 373 if (read && read != draw && !_eglIsSurfaceLinked(read)) 374 destroy_surface(dpy, read); 375 376 return ok; 377} 378 379static EGLBoolean 380egl_g3d_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf) 381{ 382 struct egl_g3d_surface *gsurf = egl_g3d_surface(surf); 383 _EGLContext *ctx = _eglGetCurrentContext(); 384 struct egl_g3d_context *gctx = NULL; 385 386 /* no-op for pixmap or pbuffer surface */ 387 if (gsurf->base.Type == EGL_PIXMAP_BIT || 388 gsurf->base.Type == EGL_PBUFFER_BIT) 389 return EGL_TRUE; 390 391 /* or when the surface is single-buffered */ 392 if (gsurf->stvis.render_buffer == ST_ATTACHMENT_FRONT_LEFT) 393 return EGL_TRUE; 394 395 if (ctx && ctx->DrawSurface == surf) 396 gctx = egl_g3d_context(ctx); 397 398 /* flush if the surface is current */ 399 if (gctx) { 400 gctx->stctxi->flush(gctx->stctxi, 401 PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL); 402 } 403 404 return gsurf->native->swap_buffers(gsurf->native); 405} 406 407/** 408 * Get the pipe surface of the given attachment of the native surface. 409 */ 410static struct pipe_resource * 411get_pipe_resource(struct native_display *ndpy, struct native_surface *nsurf, 412 enum native_attachment natt) 413{ 414 struct pipe_resource *textures[NUM_NATIVE_ATTACHMENTS]; 415 416 textures[natt] = NULL; 417 nsurf->validate(nsurf, 1 << natt, NULL, textures, NULL, NULL); 418 419 return textures[natt]; 420} 421 422static EGLBoolean 423egl_g3d_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, 424 EGLNativePixmapType target) 425{ 426 struct egl_g3d_display *gdpy = egl_g3d_display(dpy); 427 struct egl_g3d_surface *gsurf = egl_g3d_surface(surf); 428 _EGLContext *ctx = _eglGetCurrentContext(); 429 struct egl_g3d_config *gconf; 430 struct native_surface *nsurf; 431 struct pipe_screen *screen = gdpy->native->screen; 432 struct pipe_resource *ptex; 433 434 if (!gsurf->render_texture) 435 return EGL_TRUE; 436 437 gconf = egl_g3d_config(egl_g3d_find_pixmap_config(dpy, target)); 438 if (!gconf) 439 return _eglError(EGL_BAD_NATIVE_PIXMAP, "eglCopyBuffers"); 440 441 nsurf = gdpy->native->create_pixmap_surface(gdpy->native, 442 target, gconf->native); 443 if (!nsurf) 444 return _eglError(EGL_BAD_NATIVE_PIXMAP, "eglCopyBuffers"); 445 446 /* flush if the surface is current */ 447 if (ctx && ctx->DrawSurface == &gsurf->base) { 448 struct egl_g3d_context *gctx = egl_g3d_context(ctx); 449 gctx->stctxi->flush(gctx->stctxi, 450 PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL); 451 } 452 453 /* create a pipe context to copy surfaces */ 454 if (!gdpy->pipe) { 455 gdpy->pipe = 456 gdpy->native->screen->context_create(gdpy->native->screen, NULL); 457 if (!gdpy->pipe) 458 return EGL_FALSE; 459 } 460 461 ptex = get_pipe_resource(gdpy->native, nsurf, NATIVE_ATTACHMENT_FRONT_LEFT); 462 if (ptex) { 463 struct pipe_surface *psrc; 464 struct pipe_subresource subsrc, subdst; 465 subsrc.face = 0; 466 subsrc.level = 0; 467 subdst.face = 0; 468 subdst.level = 0; 469 470 if (psrc) { 471 gdpy->pipe->resource_copy_region(gdpy->pipe, ptex, subdst, 0, 0, 0, 472 gsurf->render_texture, subsrc, 0, 0, 0, ptex->width0, ptex->height0); 473 474 nsurf->flush_frontbuffer(nsurf); 475 } 476 477 pipe_resource_reference(&ptex, NULL); 478 } 479 480 nsurf->destroy(nsurf); 481 482 return EGL_TRUE; 483} 484 485static EGLBoolean 486egl_g3d_wait_client(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx) 487{ 488 struct egl_g3d_display *gdpy = egl_g3d_display(dpy); 489 struct egl_g3d_context *gctx = egl_g3d_context(ctx); 490 struct pipe_screen *screen = gdpy->native->screen; 491 struct pipe_fence_handle *fence = NULL; 492 493 gctx->stctxi->flush(gctx->stctxi, 494 PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, &fence); 495 screen->fence_finish(screen, fence, 0); 496 screen->fence_reference(screen, &fence, NULL); 497 498 return EGL_TRUE; 499} 500 501static EGLBoolean 502egl_g3d_wait_native(_EGLDriver *drv, _EGLDisplay *dpy, EGLint engine) 503{ 504 _EGLContext *ctx = _eglGetCurrentContext(); 505 506 if (engine != EGL_CORE_NATIVE_ENGINE) 507 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative"); 508 509 if (ctx && ctx->DrawSurface) { 510 struct egl_g3d_surface *gsurf = egl_g3d_surface(ctx->DrawSurface); 511 512 if (gsurf->native) 513 gsurf->native->wait(gsurf->native); 514 } 515 516 return EGL_TRUE; 517} 518 519static EGLBoolean 520egl_g3d_bind_tex_image(_EGLDriver *drv, _EGLDisplay *dpy, 521 _EGLSurface *surf, EGLint buffer) 522{ 523 struct egl_g3d_surface *gsurf = egl_g3d_surface(surf); 524 _EGLContext *es1 = _eglGetAPIContext(EGL_OPENGL_ES_API); 525 struct egl_g3d_context *gctx; 526 enum pipe_format internal_format; 527 enum st_texture_type target; 528 529 if (!gsurf || gsurf->base.Type != EGL_PBUFFER_BIT) 530 return _eglError(EGL_BAD_SURFACE, "eglBindTexImage"); 531 if (buffer != EGL_BACK_BUFFER) 532 return _eglError(EGL_BAD_PARAMETER, "eglBindTexImage"); 533 if (gsurf->base.BoundToTexture) 534 return _eglError(EGL_BAD_ACCESS, "eglBindTexImage"); 535 536 switch (gsurf->base.TextureFormat) { 537 case EGL_TEXTURE_RGB: 538 internal_format = PIPE_FORMAT_R8G8B8_UNORM; 539 break; 540 case EGL_TEXTURE_RGBA: 541 internal_format = PIPE_FORMAT_B8G8R8A8_UNORM; 542 break; 543 default: 544 return _eglError(EGL_BAD_MATCH, "eglBindTexImage"); 545 } 546 547 switch (gsurf->base.TextureTarget) { 548 case EGL_TEXTURE_2D: 549 target = ST_TEXTURE_2D; 550 break; 551 default: 552 return _eglError(EGL_BAD_MATCH, "eglBindTexImage"); 553 } 554 555 if (!es1) 556 return EGL_TRUE; 557 if (!gsurf->render_texture) 558 return EGL_FALSE; 559 560 /* flush properly if the surface is bound */ 561 if (gsurf->base.CurrentContext) { 562 gctx = egl_g3d_context(gsurf->base.CurrentContext); 563 gctx->stctxi->flush(gctx->stctxi, 564 PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME, NULL); 565 } 566 567 gctx = egl_g3d_context(es1); 568 if (gctx->stctxi->teximage) { 569 if (!gctx->stctxi->teximage(gctx->stctxi, target, 570 gsurf->base.MipmapLevel, internal_format, 571 gsurf->render_texture, gsurf->base.MipmapTexture)) 572 return EGL_FALSE; 573 gsurf->base.BoundToTexture = EGL_TRUE; 574 } 575 576 return EGL_TRUE; 577} 578 579static EGLBoolean 580egl_g3d_release_tex_image(_EGLDriver *drv, _EGLDisplay *dpy, 581 _EGLSurface *surf, EGLint buffer) 582{ 583 struct egl_g3d_surface *gsurf = egl_g3d_surface(surf); 584 585 if (!gsurf || gsurf->base.Type != EGL_PBUFFER_BIT || 586 !gsurf->base.BoundToTexture) 587 return _eglError(EGL_BAD_SURFACE, "eglReleaseTexImage"); 588 if (buffer != EGL_BACK_BUFFER) 589 return _eglError(EGL_BAD_PARAMETER, "eglReleaseTexImage"); 590 591 if (gsurf->render_texture) { 592 _EGLContext *ctx = _eglGetAPIContext(EGL_OPENGL_ES_API); 593 struct egl_g3d_context *gctx = egl_g3d_context(ctx); 594 595 /* what if the context the surface binds to is no longer current? */ 596 if (gctx) { 597 gctx->stctxi->teximage(gctx->stctxi, ST_TEXTURE_2D, 598 gsurf->base.MipmapLevel, PIPE_FORMAT_NONE, NULL, FALSE); 599 } 600 } 601 602 gsurf->base.BoundToTexture = EGL_FALSE; 603 604 return EGL_TRUE; 605} 606 607#ifdef EGL_MESA_screen_surface 608 609static _EGLSurface * 610egl_g3d_create_screen_surface(_EGLDriver *drv, _EGLDisplay *dpy, 611 _EGLConfig *conf, const EGLint *attribs) 612{ 613 struct egl_g3d_create_surface_arg arg; 614 615 memset(&arg, 0, sizeof(arg)); 616 arg.type = EGL_SCREEN_BIT_MESA; 617 618 return egl_g3d_create_surface(drv, dpy, conf, &arg, attribs); 619} 620 621static EGLBoolean 622egl_g3d_show_screen_surface(_EGLDriver *drv, _EGLDisplay *dpy, 623 _EGLScreen *scr, _EGLSurface *surf, 624 _EGLMode *mode) 625{ 626 struct egl_g3d_display *gdpy = egl_g3d_display(dpy); 627 struct egl_g3d_screen *gscr = egl_g3d_screen(scr); 628 struct egl_g3d_surface *gsurf = egl_g3d_surface(surf); 629 struct native_surface *nsurf; 630 const struct native_mode *nmode; 631 EGLBoolean changed; 632 633 if (gsurf) { 634 EGLint idx; 635 636 if (!mode) 637 return _eglError(EGL_BAD_MATCH, "eglShowSurfaceMESA"); 638 if (gsurf->base.Type != EGL_SCREEN_BIT_MESA) 639 return _eglError(EGL_BAD_SURFACE, "eglShowScreenSurfaceMESA"); 640 if (gsurf->base.Width < mode->Width || gsurf->base.Height < mode->Height) 641 return _eglError(EGL_BAD_MATCH, 642 "eglShowSurfaceMESA(surface smaller than mode size)"); 643 644 /* find the index of the mode */ 645 for (idx = 0; idx < gscr->base.NumModes; idx++) 646 if (mode == &gscr->base.Modes[idx]) 647 break; 648 if (idx >= gscr->base.NumModes) { 649 return _eglError(EGL_BAD_MODE_MESA, 650 "eglShowSurfaceMESA(unknown mode)"); 651 } 652 653 nsurf = gsurf->native; 654 nmode = gscr->native_modes[idx]; 655 } 656 else { 657 if (mode) 658 return _eglError(EGL_BAD_MATCH, "eglShowSurfaceMESA"); 659 660 /* disable the screen */ 661 nsurf = NULL; 662 nmode = NULL; 663 } 664 665 /* TODO surface panning by CRTC choosing */ 666 changed = gdpy->native->modeset->program(gdpy->native, 0, nsurf, 667 gscr->base.OriginX, gscr->base.OriginY, &gscr->native, 1, nmode); 668 if (changed) { 669 gscr->base.CurrentSurface = &gsurf->base; 670 gscr->base.CurrentMode = mode; 671 } 672 673 return changed; 674} 675 676#endif /* EGL_MESA_screen_surface */ 677 678/** 679 * Find a config that supports the pixmap. 680 */ 681_EGLConfig * 682egl_g3d_find_pixmap_config(_EGLDisplay *dpy, EGLNativePixmapType pix) 683{ 684 struct egl_g3d_display *gdpy = egl_g3d_display(dpy); 685 struct egl_g3d_config *gconf; 686 EGLint i; 687 688 for (i = 0; i < dpy->NumConfigs; i++) { 689 gconf = egl_g3d_config(dpy->Configs[i]); 690 if (gdpy->native->is_pixmap_supported(gdpy->native, pix, gconf->native)) 691 break; 692 } 693 694 return (i < dpy->NumConfigs) ? &gconf->base : NULL; 695} 696 697void 698egl_g3d_init_driver_api(_EGLDriver *drv) 699{ 700 _eglInitDriverFallbacks(drv); 701 702 drv->API.CreateContext = egl_g3d_create_context; 703 drv->API.DestroyContext = egl_g3d_destroy_context; 704 drv->API.CreateWindowSurface = egl_g3d_create_window_surface; 705 drv->API.CreatePixmapSurface = egl_g3d_create_pixmap_surface; 706 drv->API.CreatePbufferSurface = egl_g3d_create_pbuffer_surface; 707 drv->API.DestroySurface = egl_g3d_destroy_surface; 708 drv->API.MakeCurrent = egl_g3d_make_current; 709 drv->API.SwapBuffers = egl_g3d_swap_buffers; 710 drv->API.CopyBuffers = egl_g3d_copy_buffers; 711 drv->API.WaitClient = egl_g3d_wait_client; 712 drv->API.WaitNative = egl_g3d_wait_native; 713 714 drv->API.BindTexImage = egl_g3d_bind_tex_image; 715 drv->API.ReleaseTexImage = egl_g3d_release_tex_image; 716 717 drv->API.CreateImageKHR = egl_g3d_create_image; 718 drv->API.DestroyImageKHR = egl_g3d_destroy_image; 719 720#ifdef EGL_MESA_screen_surface 721 drv->API.CreateScreenSurfaceMESA = egl_g3d_create_screen_surface; 722 drv->API.ShowScreenSurfaceMESA = egl_g3d_show_screen_surface; 723#endif 724} 725