1 /* 2 * Copyright (C) 2015-2016 Gerd Hoffmann <kraxel@redhat.com> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation; either 7 * version 2.1 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with this library; if not, see <http://www.gnu.org/licenses/>. 16 */ 17 #include "qemu/osdep.h" 18 19 #include "qemu/drm.h" 20 #include "qemu/error-report.h" 21 #include "ui/console.h" 22 #include "ui/egl-helpers.h" 23 #include "system/system.h" 24 #include "qapi/error.h" 25 #include "trace.h" 26 #include "standard-headers/drm/drm_fourcc.h" 27 28 EGLDisplay *qemu_egl_display; 29 EGLConfig qemu_egl_config; 30 DisplayGLMode qemu_egl_mode; 31 bool qemu_egl_angle_d3d; 32 33 /* ------------------------------------------------------------------ */ 34 35 const char *qemu_egl_get_error_string(void) 36 { 37 EGLint error = eglGetError(); 38 39 switch (error) { 40 case EGL_SUCCESS: 41 return "EGL_SUCCESS"; 42 case EGL_NOT_INITIALIZED: 43 return "EGL_NOT_INITIALIZED"; 44 case EGL_BAD_ACCESS: 45 return "EGL_BAD_ACCESS"; 46 case EGL_BAD_ALLOC: 47 return "EGL_BAD_ALLOC"; 48 case EGL_BAD_ATTRIBUTE: 49 return "EGL_BAD_ATTRIBUTE"; 50 case EGL_BAD_CONTEXT: 51 return "EGL_BAD_CONTEXT"; 52 case EGL_BAD_CONFIG: 53 return "EGL_BAD_CONFIG"; 54 case EGL_BAD_CURRENT_SURFACE: 55 return "EGL_BAD_CURRENT_SURFACE"; 56 case EGL_BAD_DISPLAY: 57 return "EGL_BAD_DISPLAY"; 58 case EGL_BAD_SURFACE: 59 return "EGL_BAD_SURFACE"; 60 case EGL_BAD_MATCH: 61 return "EGL_BAD_MATCH"; 62 case EGL_BAD_PARAMETER: 63 return "EGL_BAD_PARAMETER"; 64 case EGL_BAD_NATIVE_PIXMAP: 65 return "EGL_BAD_NATIVE_PIXMAP"; 66 case EGL_BAD_NATIVE_WINDOW: 67 return "EGL_BAD_NATIVE_WINDOW"; 68 case EGL_CONTEXT_LOST: 69 return "EGL_CONTEXT_LOST"; 70 default: 71 return "Unknown EGL error"; 72 } 73 } 74 75 static void egl_fb_delete_texture(egl_fb *fb) 76 { 77 if (!fb->delete_texture) { 78 return; 79 } 80 81 glDeleteTextures(1, &fb->texture); 82 fb->delete_texture = false; 83 } 84 85 void egl_fb_destroy(egl_fb *fb) 86 { 87 if (!fb->framebuffer) { 88 return; 89 } 90 91 egl_fb_delete_texture(fb); 92 glDeleteFramebuffers(1, &fb->framebuffer); 93 94 fb->width = 0; 95 fb->height = 0; 96 fb->texture = 0; 97 fb->framebuffer = 0; 98 } 99 100 void egl_fb_setup_default(egl_fb *fb, int width, int height) 101 { 102 fb->width = width; 103 fb->height = height; 104 fb->framebuffer = 0; /* default framebuffer */ 105 } 106 107 void egl_fb_setup_for_tex(egl_fb *fb, int width, int height, 108 GLuint texture, bool delete) 109 { 110 egl_fb_delete_texture(fb); 111 112 fb->width = width; 113 fb->height = height; 114 fb->texture = texture; 115 fb->delete_texture = delete; 116 if (!fb->framebuffer) { 117 glGenFramebuffers(1, &fb->framebuffer); 118 } 119 120 glBindFramebuffer(GL_FRAMEBUFFER_EXT, fb->framebuffer); 121 glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, 122 GL_TEXTURE_2D, fb->texture, 0); 123 } 124 125 void egl_fb_setup_new_tex(egl_fb *fb, int width, int height) 126 { 127 GLuint texture; 128 129 glGenTextures(1, &texture); 130 glBindTexture(GL_TEXTURE_2D, texture); 131 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 132 0, GL_BGRA, GL_UNSIGNED_BYTE, 0); 133 134 egl_fb_setup_for_tex(fb, width, height, texture, true); 135 } 136 137 void egl_fb_blit(egl_fb *dst, egl_fb *src, bool flip) 138 { 139 GLuint x1 = 0; 140 GLuint y1 = 0; 141 GLuint x2, y2; 142 GLuint w = src->width; 143 GLuint h = src->height; 144 145 glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer); 146 glBindFramebuffer(GL_DRAW_FRAMEBUFFER, dst->framebuffer); 147 glViewport(0, 0, dst->width, dst->height); 148 149 if (src->dmabuf) { 150 x1 = qemu_dmabuf_get_x(src->dmabuf); 151 y1 = qemu_dmabuf_get_y(src->dmabuf); 152 w = qemu_dmabuf_get_width(src->dmabuf); 153 h = qemu_dmabuf_get_height(src->dmabuf); 154 } 155 156 w = (x1 + w) > src->width ? src->width - x1 : w; 157 h = (y1 + h) > src->height ? src->height - y1 : h; 158 159 y2 = flip ? y1 : h + y1; 160 y1 = flip ? h + y1 : y1; 161 x2 = x1 + w; 162 163 glBlitFramebuffer(x1, y1, x2, y2, 164 0, 0, dst->width, dst->height, 165 GL_COLOR_BUFFER_BIT, GL_LINEAR); 166 } 167 168 void egl_fb_read(DisplaySurface *dst, egl_fb *src) 169 { 170 glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer); 171 glReadBuffer(GL_COLOR_ATTACHMENT0_EXT); 172 glReadPixels(0, 0, surface_width(dst), surface_height(dst), 173 GL_BGRA, GL_UNSIGNED_BYTE, surface_data(dst)); 174 } 175 176 void egl_fb_read_rect(DisplaySurface *dst, egl_fb *src, int x, int y, int w, int h) 177 { 178 assert(surface_width(dst) == src->width); 179 assert(surface_height(dst) == src->height); 180 assert(surface_format(dst) == PIXMAN_x8r8g8b8); 181 182 glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer); 183 glReadBuffer(GL_COLOR_ATTACHMENT0_EXT); 184 glPixelStorei(GL_PACK_ROW_LENGTH, surface_stride(dst) / 4); 185 glReadPixels(x, y, w, h, 186 GL_BGRA, GL_UNSIGNED_BYTE, surface_data(dst) + x * 4); 187 glPixelStorei(GL_PACK_ROW_LENGTH, 0); 188 } 189 190 void egl_texture_blit(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip) 191 { 192 glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer); 193 glViewport(0, 0, dst->width, dst->height); 194 glEnable(GL_TEXTURE_2D); 195 glBindTexture(GL_TEXTURE_2D, src->texture); 196 qemu_gl_run_texture_blit(gls, flip); 197 } 198 199 void egl_texture_blend(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip, 200 int x, int y, double scale_x, double scale_y) 201 { 202 glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer); 203 int w = scale_x * src->width; 204 int h = scale_y * src->height; 205 if (flip) { 206 glViewport(x, y, w, h); 207 } else { 208 glViewport(x, dst->height - h - y, w, h); 209 } 210 glEnable(GL_TEXTURE_2D); 211 glBindTexture(GL_TEXTURE_2D, src->texture); 212 glEnable(GL_BLEND); 213 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); 214 qemu_gl_run_texture_blit(gls, flip); 215 glDisable(GL_BLEND); 216 } 217 218 /* ---------------------------------------------------------------------- */ 219 220 EGLContext qemu_egl_rn_ctx; 221 222 #ifdef CONFIG_GBM 223 224 int qemu_egl_rn_fd; 225 struct gbm_device *qemu_egl_rn_gbm_dev; 226 227 int egl_rendernode_init(const char *rendernode, DisplayGLMode mode) 228 { 229 qemu_egl_rn_fd = -1; 230 int rc; 231 232 qemu_egl_rn_fd = qemu_drm_rendernode_open(rendernode); 233 if (qemu_egl_rn_fd == -1) { 234 error_report("egl: no drm render node available"); 235 goto err; 236 } 237 238 qemu_egl_rn_gbm_dev = gbm_create_device(qemu_egl_rn_fd); 239 if (!qemu_egl_rn_gbm_dev) { 240 error_report("egl: gbm_create_device failed"); 241 goto err; 242 } 243 244 rc = qemu_egl_init_dpy_mesa((EGLNativeDisplayType)qemu_egl_rn_gbm_dev, 245 mode); 246 if (rc != 0) { 247 /* qemu_egl_init_dpy_mesa reports error */ 248 goto err; 249 } 250 251 if (!epoxy_has_egl_extension(qemu_egl_display, 252 "EGL_KHR_surfaceless_context")) { 253 error_report("egl: EGL_KHR_surfaceless_context not supported"); 254 goto err; 255 } 256 if (!epoxy_has_egl_extension(qemu_egl_display, 257 "EGL_MESA_image_dma_buf_export")) { 258 error_report("egl: EGL_MESA_image_dma_buf_export not supported"); 259 goto err; 260 } 261 if (!epoxy_has_egl_extension(qemu_egl_display, 262 "EGL_EXT_image_dma_buf_import_modifiers")) { 263 error_report("egl: EGL_EXT_image_dma_buf_import_modifiers not supported"); 264 goto err; 265 } 266 267 qemu_egl_rn_ctx = qemu_egl_init_ctx(); 268 if (!qemu_egl_rn_ctx) { 269 error_report("egl: egl_init_ctx failed"); 270 goto err; 271 } 272 273 return 0; 274 275 err: 276 if (qemu_egl_rn_gbm_dev) { 277 gbm_device_destroy(qemu_egl_rn_gbm_dev); 278 } 279 if (qemu_egl_rn_fd != -1) { 280 close(qemu_egl_rn_fd); 281 } 282 283 return -1; 284 } 285 286 int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc, 287 EGLuint64KHR *modifier) 288 { 289 EGLImageKHR image; 290 EGLint num_planes, fd; 291 292 image = eglCreateImageKHR(qemu_egl_display, eglGetCurrentContext(), 293 EGL_GL_TEXTURE_2D_KHR, 294 (EGLClientBuffer)(unsigned long)tex_id, 295 NULL); 296 if (!image) { 297 return -1; 298 } 299 300 eglExportDMABUFImageQueryMESA(qemu_egl_display, image, fourcc, 301 &num_planes, modifier); 302 if (num_planes != 1) { 303 eglDestroyImageKHR(qemu_egl_display, image); 304 return -1; 305 } 306 eglExportDMABUFImageMESA(qemu_egl_display, image, &fd, stride, NULL); 307 eglDestroyImageKHR(qemu_egl_display, image); 308 309 return fd; 310 } 311 312 void egl_dmabuf_import_texture(QemuDmaBuf *dmabuf) 313 { 314 EGLImageKHR image = EGL_NO_IMAGE_KHR; 315 EGLint attrs[64]; 316 int i = 0; 317 uint64_t modifier = qemu_dmabuf_get_modifier(dmabuf); 318 uint32_t texture = qemu_dmabuf_get_texture(dmabuf); 319 320 if (texture != 0) { 321 return; 322 } 323 324 attrs[i++] = EGL_WIDTH; 325 attrs[i++] = qemu_dmabuf_get_backing_width(dmabuf); 326 attrs[i++] = EGL_HEIGHT; 327 attrs[i++] = qemu_dmabuf_get_backing_height(dmabuf); 328 attrs[i++] = EGL_LINUX_DRM_FOURCC_EXT; 329 attrs[i++] = qemu_dmabuf_get_fourcc(dmabuf); 330 331 attrs[i++] = EGL_DMA_BUF_PLANE0_FD_EXT; 332 attrs[i++] = qemu_dmabuf_get_fds(dmabuf, NULL)[0]; 333 attrs[i++] = EGL_DMA_BUF_PLANE0_PITCH_EXT; 334 attrs[i++] = qemu_dmabuf_get_strides(dmabuf, NULL)[0]; 335 attrs[i++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT; 336 attrs[i++] = 0; 337 if (modifier != DRM_FORMAT_MOD_INVALID) { 338 attrs[i++] = EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT; 339 attrs[i++] = (modifier >> 0) & 0xffffffff; 340 attrs[i++] = EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT; 341 attrs[i++] = (modifier >> 32) & 0xffffffff; 342 } 343 attrs[i++] = EGL_NONE; 344 345 image = eglCreateImageKHR(qemu_egl_display, 346 EGL_NO_CONTEXT, 347 EGL_LINUX_DMA_BUF_EXT, 348 NULL, attrs); 349 if (image == EGL_NO_IMAGE_KHR) { 350 error_report("eglCreateImageKHR failed"); 351 return; 352 } 353 354 glGenTextures(1, &texture); 355 qemu_dmabuf_set_texture(dmabuf, texture); 356 glBindTexture(GL_TEXTURE_2D, texture); 357 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); 358 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); 359 360 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image); 361 eglDestroyImageKHR(qemu_egl_display, image); 362 } 363 364 void egl_dmabuf_release_texture(QemuDmaBuf *dmabuf) 365 { 366 uint32_t texture; 367 368 texture = qemu_dmabuf_get_texture(dmabuf); 369 if (texture == 0) { 370 return; 371 } 372 373 glDeleteTextures(1, &texture); 374 qemu_dmabuf_set_texture(dmabuf, 0); 375 } 376 377 void egl_dmabuf_create_sync(QemuDmaBuf *dmabuf) 378 { 379 EGLSyncKHR sync; 380 381 if (epoxy_has_egl_extension(qemu_egl_display, 382 "EGL_KHR_fence_sync") && 383 epoxy_has_egl_extension(qemu_egl_display, 384 "EGL_ANDROID_native_fence_sync")) { 385 sync = eglCreateSyncKHR(qemu_egl_display, 386 EGL_SYNC_NATIVE_FENCE_ANDROID, NULL); 387 if (sync != EGL_NO_SYNC_KHR) { 388 qemu_dmabuf_set_sync(dmabuf, sync); 389 } 390 } 391 } 392 393 void egl_dmabuf_create_fence(QemuDmaBuf *dmabuf) 394 { 395 void *sync = qemu_dmabuf_get_sync(dmabuf); 396 int fence_fd; 397 398 if (sync) { 399 fence_fd = eglDupNativeFenceFDANDROID(qemu_egl_display, 400 sync); 401 qemu_dmabuf_set_fence_fd(dmabuf, fence_fd); 402 eglDestroySyncKHR(qemu_egl_display, sync); 403 qemu_dmabuf_set_sync(dmabuf, NULL); 404 } 405 } 406 407 #endif /* CONFIG_GBM */ 408 409 /* ---------------------------------------------------------------------- */ 410 411 EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, EGLNativeWindowType win) 412 { 413 EGLSurface esurface; 414 EGLBoolean b; 415 416 esurface = eglCreateWindowSurface(qemu_egl_display, 417 qemu_egl_config, 418 win, NULL); 419 if (esurface == EGL_NO_SURFACE) { 420 error_report("egl: eglCreateWindowSurface failed"); 421 return NULL; 422 } 423 424 b = eglMakeCurrent(qemu_egl_display, esurface, esurface, ectx); 425 if (b == EGL_FALSE) { 426 error_report("egl: eglMakeCurrent failed"); 427 return NULL; 428 } 429 430 return esurface; 431 } 432 433 /* ---------------------------------------------------------------------- */ 434 435 #if defined(CONFIG_X11) || defined(CONFIG_GBM) || defined(WIN32) 436 437 /* 438 * Taken from glamor_egl.h from the Xorg xserver, which is MIT licensed 439 * 440 * Create an EGLDisplay from a native display type. This is a little quirky 441 * for a few reasons. 442 * 443 * 1: GetPlatformDisplayEXT and GetPlatformDisplay are the API you want to 444 * use, but have different function signatures in the third argument; this 445 * happens not to matter for us, at the moment, but it means epoxy won't alias 446 * them together. 447 * 448 * 2: epoxy 1.3 and earlier don't understand EGL client extensions, which 449 * means you can't call "eglGetPlatformDisplayEXT" directly, as the resolver 450 * will crash. 451 * 452 * 3: You can't tell whether you have EGL 1.5 at this point, because 453 * eglQueryString(EGL_VERSION) is a property of the display, which we don't 454 * have yet. So you have to query for extensions no matter what. Fortunately 455 * epoxy_has_egl_extension _does_ let you query for client extensions, so 456 * we don't have to write our own extension string parsing. 457 * 458 * 4. There is no EGL_KHR_platform_base to complement the EXT one, thus one 459 * needs to know EGL 1.5 is supported in order to use the eglGetPlatformDisplay 460 * function pointer. 461 * We can workaround this (circular dependency) by probing for the EGL 1.5 462 * platform extensions (EGL_KHR_platform_gbm and friends) yet it doesn't seem 463 * like mesa will be able to advertise these (even though it can do EGL 1.5). 464 */ 465 static EGLDisplay qemu_egl_get_display(EGLNativeDisplayType native, 466 EGLenum platform) 467 { 468 EGLDisplay dpy = EGL_NO_DISPLAY; 469 470 /* In practise any EGL 1.5 implementation would support the EXT extension */ 471 if (epoxy_has_egl_extension(NULL, "EGL_EXT_platform_base")) { 472 if (platform != 0) { 473 dpy = eglGetPlatformDisplayEXT(platform, native, NULL); 474 } 475 } 476 477 if (dpy == EGL_NO_DISPLAY) { 478 /* fallback */ 479 dpy = eglGetDisplay(native); 480 } 481 return dpy; 482 } 483 484 static int qemu_egl_init_dpy(EGLNativeDisplayType dpy, 485 EGLenum platform, 486 DisplayGLMode mode) 487 { 488 static const EGLint conf_att_core[] = { 489 EGL_SURFACE_TYPE, EGL_WINDOW_BIT, 490 EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT, 491 EGL_RED_SIZE, 5, 492 EGL_GREEN_SIZE, 5, 493 EGL_BLUE_SIZE, 5, 494 EGL_ALPHA_SIZE, 0, 495 EGL_NONE, 496 }; 497 static const EGLint conf_att_gles[] = { 498 EGL_SURFACE_TYPE, EGL_WINDOW_BIT, 499 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, 500 EGL_RED_SIZE, 5, 501 EGL_GREEN_SIZE, 5, 502 EGL_BLUE_SIZE, 5, 503 EGL_ALPHA_SIZE, 0, 504 EGL_NONE, 505 }; 506 EGLint major, minor; 507 EGLBoolean b; 508 EGLint n; 509 bool gles = (mode == DISPLAY_GL_MODE_ES); 510 511 qemu_egl_display = qemu_egl_get_display(dpy, platform); 512 if (qemu_egl_display == EGL_NO_DISPLAY) { 513 error_report("egl: eglGetDisplay failed: %s", qemu_egl_get_error_string()); 514 return -1; 515 } 516 517 b = eglInitialize(qemu_egl_display, &major, &minor); 518 if (b == EGL_FALSE) { 519 error_report("egl: eglInitialize failed: %s", qemu_egl_get_error_string()); 520 return -1; 521 } 522 523 b = eglBindAPI(gles ? EGL_OPENGL_ES_API : EGL_OPENGL_API); 524 if (b == EGL_FALSE) { 525 error_report("egl: eglBindAPI failed (%s mode): %s", 526 gles ? "gles" : "core", qemu_egl_get_error_string()); 527 return -1; 528 } 529 530 b = eglChooseConfig(qemu_egl_display, 531 gles ? conf_att_gles : conf_att_core, 532 &qemu_egl_config, 1, &n); 533 if (b == EGL_FALSE || n != 1) { 534 error_report("egl: eglChooseConfig failed (%s mode): %s", 535 gles ? "gles" : "core", qemu_egl_get_error_string()); 536 return -1; 537 } 538 539 qemu_egl_mode = gles ? DISPLAY_GL_MODE_ES : DISPLAY_GL_MODE_CORE; 540 return 0; 541 } 542 543 #endif 544 545 #if defined(CONFIG_X11) || defined(CONFIG_GBM) 546 int qemu_egl_init_dpy_x11(EGLNativeDisplayType dpy, DisplayGLMode mode) 547 { 548 #ifdef EGL_KHR_platform_x11 549 return qemu_egl_init_dpy(dpy, EGL_PLATFORM_X11_KHR, mode); 550 #else 551 return qemu_egl_init_dpy(dpy, 0, mode); 552 #endif 553 } 554 555 int qemu_egl_init_dpy_mesa(EGLNativeDisplayType dpy, DisplayGLMode mode) 556 { 557 #ifdef EGL_MESA_platform_gbm 558 return qemu_egl_init_dpy(dpy, EGL_PLATFORM_GBM_MESA, mode); 559 #else 560 return qemu_egl_init_dpy(dpy, 0, mode); 561 #endif 562 } 563 #endif 564 565 566 #ifdef WIN32 567 int qemu_egl_init_dpy_win32(EGLNativeDisplayType dpy, DisplayGLMode mode) 568 { 569 /* prefer GL ES, as that's what ANGLE supports */ 570 if (mode == DISPLAY_GL_MODE_ON) { 571 mode = DISPLAY_GL_MODE_ES; 572 } 573 574 if (qemu_egl_init_dpy(dpy, 0, mode) < 0) { 575 return -1; 576 } 577 578 #ifdef EGL_D3D11_DEVICE_ANGLE 579 if (epoxy_has_egl_extension(qemu_egl_display, "EGL_EXT_device_query")) { 580 EGLDeviceEXT device; 581 void *d3d11_device; 582 583 if (!eglQueryDisplayAttribEXT(qemu_egl_display, 584 EGL_DEVICE_EXT, 585 (EGLAttrib *)&device)) { 586 return 0; 587 } 588 589 if (!eglQueryDeviceAttribEXT(device, 590 EGL_D3D11_DEVICE_ANGLE, 591 (EGLAttrib *)&d3d11_device)) { 592 return 0; 593 } 594 595 trace_egl_init_d3d11_device(device); 596 qemu_egl_angle_d3d = device != NULL; 597 } 598 #endif 599 600 return 0; 601 } 602 #endif 603 604 bool qemu_egl_has_dmabuf(void) 605 { 606 if (qemu_egl_display == EGL_NO_DISPLAY) { 607 return false; 608 } 609 610 return epoxy_has_egl_extension(qemu_egl_display, 611 "EGL_EXT_image_dma_buf_import"); 612 } 613 614 EGLContext qemu_egl_init_ctx(void) 615 { 616 static const EGLint ctx_att_core[] = { 617 EGL_CONTEXT_OPENGL_PROFILE_MASK, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT, 618 EGL_NONE 619 }; 620 static const EGLint ctx_att_gles[] = { 621 EGL_CONTEXT_CLIENT_VERSION, 2, 622 EGL_NONE 623 }; 624 bool gles = (qemu_egl_mode == DISPLAY_GL_MODE_ES); 625 EGLContext ectx; 626 EGLBoolean b; 627 628 ectx = eglCreateContext(qemu_egl_display, qemu_egl_config, EGL_NO_CONTEXT, 629 gles ? ctx_att_gles : ctx_att_core); 630 if (ectx == EGL_NO_CONTEXT) { 631 error_report("egl: eglCreateContext failed"); 632 return NULL; 633 } 634 635 b = eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, ectx); 636 if (b == EGL_FALSE) { 637 error_report("egl: eglMakeCurrent failed"); 638 return NULL; 639 } 640 641 return ectx; 642 } 643 644 bool egl_init(const char *rendernode, DisplayGLMode mode, Error **errp) 645 { 646 ERRP_GUARD(); 647 648 if (mode == DISPLAY_GL_MODE_OFF) { 649 error_setg(errp, "egl: turning off GL doesn't make sense"); 650 return false; 651 } 652 653 #ifdef WIN32 654 if (qemu_egl_init_dpy_win32(EGL_DEFAULT_DISPLAY, mode) < 0) { 655 error_setg(errp, "egl: init failed"); 656 return false; 657 } 658 qemu_egl_rn_ctx = qemu_egl_init_ctx(); 659 if (!qemu_egl_rn_ctx) { 660 error_setg(errp, "egl: egl_init_ctx failed"); 661 return false; 662 } 663 #elif defined(CONFIG_GBM) 664 if (egl_rendernode_init(rendernode, mode) < 0) { 665 error_setg(errp, "egl: render node init failed"); 666 return false; 667 } 668 #endif 669 670 if (!qemu_egl_rn_ctx) { 671 error_setg(errp, "egl: not available on this platform"); 672 return false; 673 } 674 675 display_opengl = 1; 676 return true; 677 } 678