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
qemu_egl_get_error_string(void)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
egl_fb_delete_texture(egl_fb * fb)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
egl_fb_destroy(egl_fb * fb)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->x = 0;
97 fb->y = 0;
98 fb->texture = 0;
99 fb->framebuffer = 0;
100 }
101
egl_fb_setup_default(egl_fb * fb,int width,int height,int x,int y)102 void egl_fb_setup_default(egl_fb *fb, int width, int height, int x, int y)
103 {
104 fb->width = width;
105 fb->height = height;
106 fb->x = x;
107 fb->y = y;
108 fb->framebuffer = 0; /* default framebuffer */
109 }
110
egl_fb_setup_for_tex(egl_fb * fb,int width,int height,GLuint texture,bool delete)111 void egl_fb_setup_for_tex(egl_fb *fb, int width, int height,
112 GLuint texture, bool delete)
113 {
114 egl_fb_delete_texture(fb);
115
116 fb->width = width;
117 fb->height = height;
118 fb->texture = texture;
119 fb->delete_texture = delete;
120 if (!fb->framebuffer) {
121 glGenFramebuffers(1, &fb->framebuffer);
122 }
123
124 glBindFramebuffer(GL_FRAMEBUFFER_EXT, fb->framebuffer);
125 glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
126 GL_TEXTURE_2D, fb->texture, 0);
127 }
128
egl_fb_setup_new_tex(egl_fb * fb,int width,int height)129 void egl_fb_setup_new_tex(egl_fb *fb, int width, int height)
130 {
131 GLuint texture;
132
133 glGenTextures(1, &texture);
134 glBindTexture(GL_TEXTURE_2D, texture);
135 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height,
136 0, GL_BGRA, GL_UNSIGNED_BYTE, 0);
137
138 egl_fb_setup_for_tex(fb, width, height, texture, true);
139 }
140
egl_fb_blit(egl_fb * dst,egl_fb * src,bool flip)141 void egl_fb_blit(egl_fb *dst, egl_fb *src, bool flip)
142 {
143 GLuint x1 = 0;
144 GLuint y1 = 0;
145 GLuint x2, y2;
146 GLuint w = src->width;
147 GLuint h = src->height;
148
149 glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer);
150 glBindFramebuffer(GL_DRAW_FRAMEBUFFER, dst->framebuffer);
151 glViewport(0, 0, dst->width, dst->height);
152 glClear(GL_COLOR_BUFFER_BIT);
153
154 if (src->dmabuf) {
155 x1 = qemu_dmabuf_get_x(src->dmabuf);
156 y1 = qemu_dmabuf_get_y(src->dmabuf);
157 w = qemu_dmabuf_get_width(src->dmabuf);
158 h = qemu_dmabuf_get_height(src->dmabuf);
159 }
160
161 w = (x1 + w) > src->width ? src->width - x1 : w;
162 h = (y1 + h) > src->height ? src->height - y1 : h;
163
164 y2 = flip ? y1 : h + y1;
165 y1 = flip ? h + y1 : y1;
166 x2 = x1 + w;
167
168 glBlitFramebuffer(x1, y1, x2, y2,
169 dst->x, dst->y,
170 dst->x + dst->width, dst->y + dst->height,
171 GL_COLOR_BUFFER_BIT, GL_LINEAR);
172 }
173
egl_fb_read(DisplaySurface * dst,egl_fb * src)174 void egl_fb_read(DisplaySurface *dst, egl_fb *src)
175 {
176 glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer);
177 glReadBuffer(GL_COLOR_ATTACHMENT0_EXT);
178 glReadPixels(0, 0, surface_width(dst), surface_height(dst),
179 GL_BGRA, GL_UNSIGNED_BYTE, surface_data(dst));
180 }
181
egl_fb_read_rect(DisplaySurface * dst,egl_fb * src,int x,int y,int w,int h)182 void egl_fb_read_rect(DisplaySurface *dst, egl_fb *src, int x, int y, int w, int h)
183 {
184 assert(surface_width(dst) == src->width);
185 assert(surface_height(dst) == src->height);
186 assert(surface_format(dst) == PIXMAN_x8r8g8b8);
187
188 glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer);
189 glReadBuffer(GL_COLOR_ATTACHMENT0_EXT);
190 glPixelStorei(GL_PACK_ROW_LENGTH, surface_stride(dst) / 4);
191 glReadPixels(x, y, w, h,
192 GL_BGRA, GL_UNSIGNED_BYTE, surface_data(dst) + x * 4);
193 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
194 }
195
egl_texture_blit(QemuGLShader * gls,egl_fb * dst,egl_fb * src,bool flip)196 void egl_texture_blit(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip)
197 {
198 glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer);
199 glViewport(0, 0, dst->width, dst->height);
200 glEnable(GL_TEXTURE_2D);
201 glBindTexture(GL_TEXTURE_2D, src->texture);
202 qemu_gl_run_texture_blit(gls, flip);
203 }
204
egl_texture_blend(QemuGLShader * gls,egl_fb * dst,egl_fb * src,bool flip,int x,int y,double scale_x,double scale_y)205 void egl_texture_blend(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip,
206 int x, int y, double scale_x, double scale_y)
207 {
208 glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer);
209 int w = scale_x * src->width;
210 int h = scale_y * src->height;
211 if (flip) {
212 glViewport(x, y, w, h);
213 } else {
214 glViewport(x, dst->height - h - y, w, h);
215 }
216 glEnable(GL_TEXTURE_2D);
217 glBindTexture(GL_TEXTURE_2D, src->texture);
218 glEnable(GL_BLEND);
219 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
220 qemu_gl_run_texture_blit(gls, flip);
221 glDisable(GL_BLEND);
222 }
223
224 /* ---------------------------------------------------------------------- */
225
226 EGLContext qemu_egl_rn_ctx;
227
228 #ifdef CONFIG_GBM
229
230 int qemu_egl_rn_fd;
231 struct gbm_device *qemu_egl_rn_gbm_dev;
232
egl_rendernode_init(const char * rendernode,DisplayGLMode mode)233 int egl_rendernode_init(const char *rendernode, DisplayGLMode mode)
234 {
235 qemu_egl_rn_fd = -1;
236 int rc;
237
238 qemu_egl_rn_fd = qemu_drm_rendernode_open(rendernode);
239 if (qemu_egl_rn_fd == -1) {
240 error_report("egl: no drm render node available");
241 goto err;
242 }
243
244 qemu_egl_rn_gbm_dev = gbm_create_device(qemu_egl_rn_fd);
245 if (!qemu_egl_rn_gbm_dev) {
246 error_report("egl: gbm_create_device failed");
247 goto err;
248 }
249
250 rc = qemu_egl_init_dpy_mesa((EGLNativeDisplayType)qemu_egl_rn_gbm_dev,
251 mode);
252 if (rc != 0) {
253 /* qemu_egl_init_dpy_mesa reports error */
254 goto err;
255 }
256
257 if (!epoxy_has_egl_extension(qemu_egl_display,
258 "EGL_KHR_surfaceless_context")) {
259 error_report("egl: EGL_KHR_surfaceless_context not supported");
260 goto err;
261 }
262 if (!epoxy_has_egl_extension(qemu_egl_display,
263 "EGL_MESA_image_dma_buf_export")) {
264 error_report("egl: EGL_MESA_image_dma_buf_export not supported");
265 goto err;
266 }
267 if (!epoxy_has_egl_extension(qemu_egl_display,
268 "EGL_EXT_image_dma_buf_import_modifiers")) {
269 error_report("egl: EGL_EXT_image_dma_buf_import_modifiers not supported");
270 goto err;
271 }
272
273 qemu_egl_rn_ctx = qemu_egl_init_ctx();
274 if (!qemu_egl_rn_ctx) {
275 error_report("egl: egl_init_ctx failed");
276 goto err;
277 }
278
279 return 0;
280
281 err:
282 if (qemu_egl_rn_gbm_dev) {
283 gbm_device_destroy(qemu_egl_rn_gbm_dev);
284 }
285 if (qemu_egl_rn_fd != -1) {
286 close(qemu_egl_rn_fd);
287 }
288
289 return -1;
290 }
291
egl_dmabuf_export_texture(uint32_t tex_id,int * fd,EGLint * offset,EGLint * stride,EGLint * fourcc,int * num_planes,EGLuint64KHR * modifier)292 bool egl_dmabuf_export_texture(uint32_t tex_id, int *fd, EGLint *offset,
293 EGLint *stride, EGLint *fourcc, int *num_planes,
294 EGLuint64KHR *modifier)
295 {
296 EGLImageKHR image;
297 EGLuint64KHR modifiers[DMABUF_MAX_PLANES];
298 int i;
299
300 image = eglCreateImageKHR(qemu_egl_display, eglGetCurrentContext(),
301 EGL_GL_TEXTURE_2D_KHR,
302 (EGLClientBuffer)(unsigned long)tex_id,
303 NULL);
304 if (!image) {
305 return false;
306 }
307
308 eglExportDMABUFImageQueryMESA(qemu_egl_display, image, fourcc,
309 num_planes, modifiers);
310 eglExportDMABUFImageMESA(qemu_egl_display, image, fd, stride, offset);
311 eglDestroyImageKHR(qemu_egl_display, image);
312
313 /* Only first modifier matters. */
314 if (modifier) {
315 *modifier = modifiers[0];
316 }
317
318 for (i = 0; i < *num_planes; i++) {
319 if (fd[i] < 0) {
320 return false;
321 }
322 }
323 return true;
324 }
325
egl_dmabuf_import_texture(QemuDmaBuf * dmabuf)326 void egl_dmabuf_import_texture(QemuDmaBuf *dmabuf)
327 {
328 EGLImageKHR image = EGL_NO_IMAGE_KHR;
329 EGLint attrs[64];
330 int i = 0, j;
331 uint64_t modifier = qemu_dmabuf_get_modifier(dmabuf);
332 uint32_t texture = qemu_dmabuf_get_texture(dmabuf);
333 int nfds, noffsets, nstrides;
334 const int *fds = qemu_dmabuf_get_fds(dmabuf, &nfds);
335 const uint32_t *offsets = qemu_dmabuf_get_offsets(dmabuf, &noffsets);
336 const uint32_t *strides = qemu_dmabuf_get_strides(dmabuf, &nstrides);
337 uint32_t num_planes = qemu_dmabuf_get_num_planes(dmabuf);
338
339 EGLint fd_attrs[] = {
340 EGL_DMA_BUF_PLANE0_FD_EXT,
341 EGL_DMA_BUF_PLANE1_FD_EXT,
342 EGL_DMA_BUF_PLANE2_FD_EXT,
343 EGL_DMA_BUF_PLANE3_FD_EXT,
344 };
345 EGLint offset_attrs[] = {
346 EGL_DMA_BUF_PLANE0_OFFSET_EXT,
347 EGL_DMA_BUF_PLANE1_OFFSET_EXT,
348 EGL_DMA_BUF_PLANE2_OFFSET_EXT,
349 EGL_DMA_BUF_PLANE3_OFFSET_EXT,
350 };
351 EGLint stride_attrs[] = {
352 EGL_DMA_BUF_PLANE0_PITCH_EXT,
353 EGL_DMA_BUF_PLANE1_PITCH_EXT,
354 EGL_DMA_BUF_PLANE2_PITCH_EXT,
355 EGL_DMA_BUF_PLANE3_PITCH_EXT,
356 };
357 EGLint modifier_lo_attrs[] = {
358 EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT,
359 EGL_DMA_BUF_PLANE1_MODIFIER_LO_EXT,
360 EGL_DMA_BUF_PLANE2_MODIFIER_LO_EXT,
361 EGL_DMA_BUF_PLANE3_MODIFIER_LO_EXT,
362 };
363 EGLint modifier_hi_attrs[] = {
364 EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT,
365 EGL_DMA_BUF_PLANE1_MODIFIER_HI_EXT,
366 EGL_DMA_BUF_PLANE2_MODIFIER_HI_EXT,
367 EGL_DMA_BUF_PLANE3_MODIFIER_HI_EXT,
368 };
369
370 if (texture != 0) {
371 return;
372 }
373
374 assert(nfds >= num_planes);
375 assert(noffsets >= num_planes);
376 assert(nstrides >= num_planes);
377
378 attrs[i++] = EGL_WIDTH;
379 attrs[i++] = qemu_dmabuf_get_backing_width(dmabuf);
380 attrs[i++] = EGL_HEIGHT;
381 attrs[i++] = qemu_dmabuf_get_backing_height(dmabuf);
382 attrs[i++] = EGL_LINUX_DRM_FOURCC_EXT;
383 attrs[i++] = qemu_dmabuf_get_fourcc(dmabuf);
384
385 for (j = 0; j < num_planes; j++) {
386 attrs[i++] = fd_attrs[j];
387 /* fd[1-3] may be -1 if using a joint buffer for all planes */
388 attrs[i++] = fds[j] >= 0 ? fds[j] : fds[0];
389 attrs[i++] = stride_attrs[j];
390 attrs[i++] = strides[j];
391 attrs[i++] = offset_attrs[j];
392 attrs[i++] = offsets[j];
393 if (modifier != DRM_FORMAT_MOD_INVALID) {
394 attrs[i++] = modifier_lo_attrs[j];
395 attrs[i++] = (modifier >> 0) & 0xffffffff;
396 attrs[i++] = modifier_hi_attrs[j];
397 attrs[i++] = (modifier >> 32) & 0xffffffff;
398 }
399 }
400
401 attrs[i++] = EGL_NONE;
402
403 image = eglCreateImageKHR(qemu_egl_display,
404 EGL_NO_CONTEXT,
405 EGL_LINUX_DMA_BUF_EXT,
406 NULL, attrs);
407 if (image == EGL_NO_IMAGE_KHR) {
408 error_report("eglCreateImageKHR failed");
409 return;
410 }
411
412 glGenTextures(1, &texture);
413 qemu_dmabuf_set_texture(dmabuf, texture);
414 glBindTexture(GL_TEXTURE_2D, texture);
415 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
416 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
417
418 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image);
419 eglDestroyImageKHR(qemu_egl_display, image);
420 }
421
egl_dmabuf_release_texture(QemuDmaBuf * dmabuf)422 void egl_dmabuf_release_texture(QemuDmaBuf *dmabuf)
423 {
424 uint32_t texture;
425
426 texture = qemu_dmabuf_get_texture(dmabuf);
427 if (texture == 0) {
428 return;
429 }
430
431 glDeleteTextures(1, &texture);
432 qemu_dmabuf_set_texture(dmabuf, 0);
433 }
434
egl_dmabuf_create_sync(QemuDmaBuf * dmabuf)435 void egl_dmabuf_create_sync(QemuDmaBuf *dmabuf)
436 {
437 EGLSyncKHR sync;
438
439 if (epoxy_has_egl_extension(qemu_egl_display,
440 "EGL_KHR_fence_sync") &&
441 epoxy_has_egl_extension(qemu_egl_display,
442 "EGL_ANDROID_native_fence_sync")) {
443 sync = eglCreateSyncKHR(qemu_egl_display,
444 EGL_SYNC_NATIVE_FENCE_ANDROID, NULL);
445 if (sync != EGL_NO_SYNC_KHR) {
446 qemu_dmabuf_set_sync(dmabuf, sync);
447 }
448 }
449 }
450
egl_dmabuf_create_fence(QemuDmaBuf * dmabuf)451 void egl_dmabuf_create_fence(QemuDmaBuf *dmabuf)
452 {
453 void *sync = qemu_dmabuf_get_sync(dmabuf);
454 int fence_fd;
455
456 if (sync) {
457 fence_fd = eglDupNativeFenceFDANDROID(qemu_egl_display,
458 sync);
459 qemu_dmabuf_set_fence_fd(dmabuf, fence_fd);
460 eglDestroySyncKHR(qemu_egl_display, sync);
461 qemu_dmabuf_set_sync(dmabuf, NULL);
462 }
463 }
464
465 #endif /* CONFIG_GBM */
466
467 /* ---------------------------------------------------------------------- */
468
qemu_egl_init_surface_x11(EGLContext ectx,EGLNativeWindowType win)469 EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, EGLNativeWindowType win)
470 {
471 EGLSurface esurface;
472 EGLBoolean b;
473
474 esurface = eglCreateWindowSurface(qemu_egl_display,
475 qemu_egl_config,
476 win, NULL);
477 if (esurface == EGL_NO_SURFACE) {
478 error_report("egl: eglCreateWindowSurface failed");
479 return NULL;
480 }
481
482 b = eglMakeCurrent(qemu_egl_display, esurface, esurface, ectx);
483 if (b == EGL_FALSE) {
484 error_report("egl: eglMakeCurrent failed");
485 return NULL;
486 }
487
488 return esurface;
489 }
490
491 /* ---------------------------------------------------------------------- */
492
493 #if defined(CONFIG_X11) || defined(CONFIG_GBM) || defined(WIN32)
494
495 /*
496 * Taken from glamor_egl.h from the Xorg xserver, which is MIT licensed
497 *
498 * Create an EGLDisplay from a native display type. This is a little quirky
499 * for a few reasons.
500 *
501 * 1: GetPlatformDisplayEXT and GetPlatformDisplay are the API you want to
502 * use, but have different function signatures in the third argument; this
503 * happens not to matter for us, at the moment, but it means epoxy won't alias
504 * them together.
505 *
506 * 2: epoxy 1.3 and earlier don't understand EGL client extensions, which
507 * means you can't call "eglGetPlatformDisplayEXT" directly, as the resolver
508 * will crash.
509 *
510 * 3: You can't tell whether you have EGL 1.5 at this point, because
511 * eglQueryString(EGL_VERSION) is a property of the display, which we don't
512 * have yet. So you have to query for extensions no matter what. Fortunately
513 * epoxy_has_egl_extension _does_ let you query for client extensions, so
514 * we don't have to write our own extension string parsing.
515 *
516 * 4. There is no EGL_KHR_platform_base to complement the EXT one, thus one
517 * needs to know EGL 1.5 is supported in order to use the eglGetPlatformDisplay
518 * function pointer.
519 * We can workaround this (circular dependency) by probing for the EGL 1.5
520 * platform extensions (EGL_KHR_platform_gbm and friends) yet it doesn't seem
521 * like mesa will be able to advertise these (even though it can do EGL 1.5).
522 */
qemu_egl_get_display(EGLNativeDisplayType native,EGLenum platform)523 static EGLDisplay qemu_egl_get_display(EGLNativeDisplayType native,
524 EGLenum platform)
525 {
526 EGLDisplay dpy = EGL_NO_DISPLAY;
527
528 /* In practise any EGL 1.5 implementation would support the EXT extension */
529 if (epoxy_has_egl_extension(NULL, "EGL_EXT_platform_base")) {
530 if (platform != 0) {
531 dpy = eglGetPlatformDisplayEXT(platform, native, NULL);
532 }
533 }
534
535 if (dpy == EGL_NO_DISPLAY) {
536 /* fallback */
537 dpy = eglGetDisplay(native);
538 }
539 return dpy;
540 }
541
qemu_egl_init_dpy(EGLNativeDisplayType dpy,EGLenum platform,DisplayGLMode mode)542 static int qemu_egl_init_dpy(EGLNativeDisplayType dpy,
543 EGLenum platform,
544 DisplayGLMode mode)
545 {
546 static const EGLint conf_att_core[] = {
547 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
548 EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
549 EGL_RED_SIZE, 5,
550 EGL_GREEN_SIZE, 5,
551 EGL_BLUE_SIZE, 5,
552 EGL_ALPHA_SIZE, 0,
553 EGL_NONE,
554 };
555 static const EGLint conf_att_gles[] = {
556 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
557 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
558 EGL_RED_SIZE, 5,
559 EGL_GREEN_SIZE, 5,
560 EGL_BLUE_SIZE, 5,
561 EGL_ALPHA_SIZE, 0,
562 EGL_NONE,
563 };
564 EGLint major, minor;
565 EGLBoolean b;
566 EGLint n;
567 bool gles = (mode == DISPLAY_GL_MODE_ES);
568
569 qemu_egl_display = qemu_egl_get_display(dpy, platform);
570 if (qemu_egl_display == EGL_NO_DISPLAY) {
571 error_report("egl: eglGetDisplay failed: %s", qemu_egl_get_error_string());
572 return -1;
573 }
574
575 b = eglInitialize(qemu_egl_display, &major, &minor);
576 if (b == EGL_FALSE) {
577 error_report("egl: eglInitialize failed: %s", qemu_egl_get_error_string());
578 return -1;
579 }
580
581 b = eglBindAPI(gles ? EGL_OPENGL_ES_API : EGL_OPENGL_API);
582 if (b == EGL_FALSE) {
583 error_report("egl: eglBindAPI failed (%s mode): %s",
584 gles ? "gles" : "core", qemu_egl_get_error_string());
585 return -1;
586 }
587
588 b = eglChooseConfig(qemu_egl_display,
589 gles ? conf_att_gles : conf_att_core,
590 &qemu_egl_config, 1, &n);
591 if (b == EGL_FALSE || n != 1) {
592 error_report("egl: eglChooseConfig failed (%s mode): %s",
593 gles ? "gles" : "core", qemu_egl_get_error_string());
594 return -1;
595 }
596
597 qemu_egl_mode = gles ? DISPLAY_GL_MODE_ES : DISPLAY_GL_MODE_CORE;
598 return 0;
599 }
600
601 #endif
602
603 #if defined(CONFIG_X11) || defined(CONFIG_GBM)
qemu_egl_init_dpy_x11(EGLNativeDisplayType dpy,DisplayGLMode mode)604 int qemu_egl_init_dpy_x11(EGLNativeDisplayType dpy, DisplayGLMode mode)
605 {
606 #ifdef EGL_KHR_platform_x11
607 return qemu_egl_init_dpy(dpy, EGL_PLATFORM_X11_KHR, mode);
608 #else
609 return qemu_egl_init_dpy(dpy, 0, mode);
610 #endif
611 }
612
qemu_egl_init_dpy_mesa(EGLNativeDisplayType dpy,DisplayGLMode mode)613 int qemu_egl_init_dpy_mesa(EGLNativeDisplayType dpy, DisplayGLMode mode)
614 {
615 #ifdef EGL_MESA_platform_gbm
616 return qemu_egl_init_dpy(dpy, EGL_PLATFORM_GBM_MESA, mode);
617 #else
618 return qemu_egl_init_dpy(dpy, 0, mode);
619 #endif
620 }
621 #endif
622
623
624 #ifdef WIN32
qemu_egl_init_dpy_win32(EGLNativeDisplayType dpy,DisplayGLMode mode)625 int qemu_egl_init_dpy_win32(EGLNativeDisplayType dpy, DisplayGLMode mode)
626 {
627 /* prefer GL ES, as that's what ANGLE supports */
628 if (mode == DISPLAY_GL_MODE_ON) {
629 mode = DISPLAY_GL_MODE_ES;
630 }
631
632 if (qemu_egl_init_dpy(dpy, 0, mode) < 0) {
633 return -1;
634 }
635
636 #ifdef EGL_D3D11_DEVICE_ANGLE
637 if (epoxy_has_egl_extension(qemu_egl_display, "EGL_EXT_device_query")) {
638 EGLDeviceEXT device;
639 void *d3d11_device;
640
641 if (!eglQueryDisplayAttribEXT(qemu_egl_display,
642 EGL_DEVICE_EXT,
643 (EGLAttrib *)&device)) {
644 return 0;
645 }
646
647 if (!eglQueryDeviceAttribEXT(device,
648 EGL_D3D11_DEVICE_ANGLE,
649 (EGLAttrib *)&d3d11_device)) {
650 return 0;
651 }
652
653 trace_egl_init_d3d11_device(device);
654 qemu_egl_angle_d3d = device != NULL;
655 }
656 #endif
657
658 return 0;
659 }
660 #endif
661
qemu_egl_has_dmabuf(void)662 bool qemu_egl_has_dmabuf(void)
663 {
664 if (qemu_egl_display == EGL_NO_DISPLAY) {
665 return false;
666 }
667
668 return epoxy_has_egl_extension(qemu_egl_display,
669 "EGL_EXT_image_dma_buf_import");
670 }
671
qemu_egl_init_ctx(void)672 EGLContext qemu_egl_init_ctx(void)
673 {
674 static const EGLint ctx_att_core[] = {
675 EGL_CONTEXT_OPENGL_PROFILE_MASK, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT,
676 EGL_NONE
677 };
678 static const EGLint ctx_att_gles[] = {
679 EGL_CONTEXT_CLIENT_VERSION, 2,
680 EGL_NONE
681 };
682 bool gles = (qemu_egl_mode == DISPLAY_GL_MODE_ES);
683 EGLContext ectx;
684 EGLBoolean b;
685
686 ectx = eglCreateContext(qemu_egl_display, qemu_egl_config, EGL_NO_CONTEXT,
687 gles ? ctx_att_gles : ctx_att_core);
688 if (ectx == EGL_NO_CONTEXT) {
689 error_report("egl: eglCreateContext failed");
690 return NULL;
691 }
692
693 b = eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, ectx);
694 if (b == EGL_FALSE) {
695 error_report("egl: eglMakeCurrent failed");
696 return NULL;
697 }
698
699 return ectx;
700 }
701
egl_init(const char * rendernode,DisplayGLMode mode,Error ** errp)702 bool egl_init(const char *rendernode, DisplayGLMode mode, Error **errp)
703 {
704 ERRP_GUARD();
705
706 if (mode == DISPLAY_GL_MODE_OFF) {
707 error_setg(errp, "egl: turning off GL doesn't make sense");
708 return false;
709 }
710
711 #ifdef WIN32
712 if (qemu_egl_init_dpy_win32(EGL_DEFAULT_DISPLAY, mode) < 0) {
713 error_setg(errp, "egl: init failed");
714 return false;
715 }
716 qemu_egl_rn_ctx = qemu_egl_init_ctx();
717 if (!qemu_egl_rn_ctx) {
718 error_setg(errp, "egl: egl_init_ctx failed");
719 return false;
720 }
721 #elif defined(CONFIG_GBM)
722 if (egl_rendernode_init(rendernode, mode) < 0) {
723 error_setg(errp, "egl: render node init failed");
724 return false;
725 }
726 #endif
727
728 if (!qemu_egl_rn_ctx) {
729 error_setg(errp, "egl: not available on this platform");
730 return false;
731 }
732
733 display_opengl = 1;
734 return true;
735 }
736