2 * Copyright (C) 2015-2016 Gerd Hoffmann <kraxel@redhat.com>
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.
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.
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/>.
17 #include "qemu/osdep.h"
20 #include "qemu/error-report.h"
21 #include "ui/console.h"
22 #include "ui/egl-helpers.h"
23 #include "sysemu/sysemu.h"
24 #include "qapi/error.h"
27 EGLDisplay *qemu_egl_display;
28 EGLConfig qemu_egl_config;
29 DisplayGLMode qemu_egl_mode;
30 bool qemu_egl_angle_d3d;
32 /* ------------------------------------------------------------------ */
34 const char *qemu_egl_get_error_string(void)
36 EGLint error = eglGetError();
41 case EGL_NOT_INITIALIZED:
42 return "EGL_NOT_INITIALIZED";
44 return "EGL_BAD_ACCESS";
46 return "EGL_BAD_ALLOC";
47 case EGL_BAD_ATTRIBUTE:
48 return "EGL_BAD_ATTRIBUTE";
50 return "EGL_BAD_CONTEXT";
52 return "EGL_BAD_CONFIG";
53 case EGL_BAD_CURRENT_SURFACE:
54 return "EGL_BAD_CURRENT_SURFACE";
56 return "EGL_BAD_DISPLAY";
58 return "EGL_BAD_SURFACE";
60 return "EGL_BAD_MATCH";
61 case EGL_BAD_PARAMETER:
62 return "EGL_BAD_PARAMETER";
63 case EGL_BAD_NATIVE_PIXMAP:
64 return "EGL_BAD_NATIVE_PIXMAP";
65 case EGL_BAD_NATIVE_WINDOW:
66 return "EGL_BAD_NATIVE_WINDOW";
67 case EGL_CONTEXT_LOST:
68 return "EGL_CONTEXT_LOST";
70 return "Unknown EGL error";
74 static void egl_fb_delete_texture(egl_fb *fb)
76 if (!fb->delete_texture) {
80 glDeleteTextures(1, &fb->texture);
81 fb->delete_texture = false;
84 void egl_fb_destroy(egl_fb *fb)
86 if (!fb->framebuffer) {
90 egl_fb_delete_texture(fb);
91 glDeleteFramebuffers(1, &fb->framebuffer);
99 void egl_fb_setup_default(egl_fb *fb, int width, int height)
103 fb->framebuffer = 0; /* default framebuffer */
106 void egl_fb_setup_for_tex(egl_fb *fb, int width, int height,
107 GLuint texture, bool delete)
109 egl_fb_delete_texture(fb);
113 fb->texture = texture;
114 fb->delete_texture = delete;
115 if (!fb->framebuffer) {
116 glGenFramebuffers(1, &fb->framebuffer);
119 glBindFramebuffer(GL_FRAMEBUFFER_EXT, fb->framebuffer);
120 glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
121 GL_TEXTURE_2D, fb->texture, 0);
124 void egl_fb_setup_new_tex(egl_fb *fb, int width, int height)
128 glGenTextures(1, &texture);
129 glBindTexture(GL_TEXTURE_2D, texture);
130 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height,
131 0, GL_BGRA, GL_UNSIGNED_BYTE, 0);
133 egl_fb_setup_for_tex(fb, width, height, texture, true);
136 void egl_fb_blit(egl_fb *dst, egl_fb *src, bool flip)
141 GLuint w = src->width;
142 GLuint h = src->height;
144 glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer);
145 glBindFramebuffer(GL_DRAW_FRAMEBUFFER, dst->framebuffer);
146 glViewport(0, 0, dst->width, dst->height);
151 w = src->dmabuf->width;
152 h = src->dmabuf->height;
155 w = (x1 + w) > src->width ? src->width - x1 : w;
156 h = (y1 + h) > src->height ? src->height - y1 : h;
158 y2 = flip ? y1 : h + y1;
159 y1 = flip ? h + y1 : y1;
162 glBlitFramebuffer(x1, y1, x2, y2,
163 0, 0, dst->width, dst->height,
164 GL_COLOR_BUFFER_BIT, GL_LINEAR);
167 void egl_fb_read(DisplaySurface *dst, egl_fb *src)
169 glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer);
170 glReadBuffer(GL_COLOR_ATTACHMENT0_EXT);
171 glReadPixels(0, 0, surface_width(dst), surface_height(dst),
172 GL_BGRA, GL_UNSIGNED_BYTE, surface_data(dst));
175 void egl_fb_read_rect(DisplaySurface *dst, egl_fb *src, int x, int y, int w, int h)
177 assert(surface_width(dst) == src->width);
178 assert(surface_height(dst) == src->height);
179 assert(surface_format(dst) == PIXMAN_x8r8g8b8);
181 glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer);
182 glReadBuffer(GL_COLOR_ATTACHMENT0_EXT);
183 glPixelStorei(GL_PACK_ROW_LENGTH, surface_stride(dst) / 4);
184 glReadPixels(x, y, w, h,
185 GL_BGRA, GL_UNSIGNED_BYTE, surface_data(dst) + x * 4);
186 glPixelStorei(GL_PACK_ROW_LENGTH, 0);
189 void egl_texture_blit(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip)
191 glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer);
192 glViewport(0, 0, dst->width, dst->height);
193 glEnable(GL_TEXTURE_2D);
194 glBindTexture(GL_TEXTURE_2D, src->texture);
195 qemu_gl_run_texture_blit(gls, flip);
198 void egl_texture_blend(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip,
199 int x, int y, double scale_x, double scale_y)
201 glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer);
202 int w = scale_x * src->width;
203 int h = scale_y * src->height;
205 glViewport(x, y, w, h);
207 glViewport(x, dst->height - h - y, w, h);
209 glEnable(GL_TEXTURE_2D);
210 glBindTexture(GL_TEXTURE_2D, src->texture);
212 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
213 qemu_gl_run_texture_blit(gls, flip);
217 /* ---------------------------------------------------------------------- */
219 EGLContext qemu_egl_rn_ctx;
224 struct gbm_device *qemu_egl_rn_gbm_dev;
226 int egl_rendernode_init(const char *rendernode, DisplayGLMode mode)
231 qemu_egl_rn_fd = qemu_drm_rendernode_open(rendernode);
232 if (qemu_egl_rn_fd == -1) {
233 error_report("egl: no drm render node available");
237 qemu_egl_rn_gbm_dev = gbm_create_device(qemu_egl_rn_fd);
238 if (!qemu_egl_rn_gbm_dev) {
239 error_report("egl: gbm_create_device failed");
243 rc = qemu_egl_init_dpy_mesa((EGLNativeDisplayType)qemu_egl_rn_gbm_dev,
246 /* qemu_egl_init_dpy_mesa reports error */
250 if (!epoxy_has_egl_extension(qemu_egl_display,
251 "EGL_KHR_surfaceless_context")) {
252 error_report("egl: EGL_KHR_surfaceless_context not supported");
255 if (!epoxy_has_egl_extension(qemu_egl_display,
256 "EGL_MESA_image_dma_buf_export")) {
257 error_report("egl: EGL_MESA_image_dma_buf_export not supported");
261 qemu_egl_rn_ctx = qemu_egl_init_ctx();
262 if (!qemu_egl_rn_ctx) {
263 error_report("egl: egl_init_ctx failed");
270 if (qemu_egl_rn_gbm_dev) {
271 gbm_device_destroy(qemu_egl_rn_gbm_dev);
273 if (qemu_egl_rn_fd != -1) {
274 close(qemu_egl_rn_fd);
280 int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc,
281 EGLuint64KHR *modifier)
284 EGLint num_planes, fd;
286 image = eglCreateImageKHR(qemu_egl_display, eglGetCurrentContext(),
287 EGL_GL_TEXTURE_2D_KHR,
288 (EGLClientBuffer)(unsigned long)tex_id,
294 eglExportDMABUFImageQueryMESA(qemu_egl_display, image, fourcc,
295 &num_planes, modifier);
296 if (num_planes != 1) {
297 eglDestroyImageKHR(qemu_egl_display, image);
300 eglExportDMABUFImageMESA(qemu_egl_display, image, &fd, stride, NULL);
301 eglDestroyImageKHR(qemu_egl_display, image);
306 void egl_dmabuf_import_texture(QemuDmaBuf *dmabuf)
308 EGLImageKHR image = EGL_NO_IMAGE_KHR;
312 if (dmabuf->texture != 0) {
316 attrs[i++] = EGL_WIDTH;
317 attrs[i++] = dmabuf->backing_width;
318 attrs[i++] = EGL_HEIGHT;
319 attrs[i++] = dmabuf->backing_height;
320 attrs[i++] = EGL_LINUX_DRM_FOURCC_EXT;
321 attrs[i++] = dmabuf->fourcc;
323 attrs[i++] = EGL_DMA_BUF_PLANE0_FD_EXT;
324 attrs[i++] = dmabuf->fd;
325 attrs[i++] = EGL_DMA_BUF_PLANE0_PITCH_EXT;
326 attrs[i++] = dmabuf->stride;
327 attrs[i++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT;
329 #ifdef EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT
330 if (dmabuf->modifier) {
331 attrs[i++] = EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT;
332 attrs[i++] = (dmabuf->modifier >> 0) & 0xffffffff;
333 attrs[i++] = EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT;
334 attrs[i++] = (dmabuf->modifier >> 32) & 0xffffffff;
337 attrs[i++] = EGL_NONE;
339 image = eglCreateImageKHR(qemu_egl_display,
341 EGL_LINUX_DMA_BUF_EXT,
343 if (image == EGL_NO_IMAGE_KHR) {
344 error_report("eglCreateImageKHR failed");
348 glGenTextures(1, &dmabuf->texture);
349 glBindTexture(GL_TEXTURE_2D, dmabuf->texture);
350 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
351 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
353 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image);
354 eglDestroyImageKHR(qemu_egl_display, image);
357 void egl_dmabuf_release_texture(QemuDmaBuf *dmabuf)
359 if (dmabuf->texture == 0) {
363 glDeleteTextures(1, &dmabuf->texture);
367 void egl_dmabuf_create_sync(QemuDmaBuf *dmabuf)
371 if (epoxy_has_egl_extension(qemu_egl_display,
372 "EGL_KHR_fence_sync") &&
373 epoxy_has_egl_extension(qemu_egl_display,
374 "EGL_ANDROID_native_fence_sync")) {
375 sync = eglCreateSyncKHR(qemu_egl_display,
376 EGL_SYNC_NATIVE_FENCE_ANDROID, NULL);
377 if (sync != EGL_NO_SYNC_KHR) {
383 void egl_dmabuf_create_fence(QemuDmaBuf *dmabuf)
386 dmabuf->fence_fd = eglDupNativeFenceFDANDROID(qemu_egl_display,
388 eglDestroySyncKHR(qemu_egl_display, dmabuf->sync);
393 #endif /* CONFIG_GBM */
395 /* ---------------------------------------------------------------------- */
397 EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, EGLNativeWindowType win)
402 esurface = eglCreateWindowSurface(qemu_egl_display,
405 if (esurface == EGL_NO_SURFACE) {
406 error_report("egl: eglCreateWindowSurface failed");
410 b = eglMakeCurrent(qemu_egl_display, esurface, esurface, ectx);
411 if (b == EGL_FALSE) {
412 error_report("egl: eglMakeCurrent failed");
419 /* ---------------------------------------------------------------------- */
421 #if defined(CONFIG_X11) || defined(CONFIG_GBM) || defined(WIN32)
424 * Taken from glamor_egl.h from the Xorg xserver, which is MIT licensed
426 * Create an EGLDisplay from a native display type. This is a little quirky
429 * 1: GetPlatformDisplayEXT and GetPlatformDisplay are the API you want to
430 * use, but have different function signatures in the third argument; this
431 * happens not to matter for us, at the moment, but it means epoxy won't alias
434 * 2: epoxy 1.3 and earlier don't understand EGL client extensions, which
435 * means you can't call "eglGetPlatformDisplayEXT" directly, as the resolver
438 * 3: You can't tell whether you have EGL 1.5 at this point, because
439 * eglQueryString(EGL_VERSION) is a property of the display, which we don't
440 * have yet. So you have to query for extensions no matter what. Fortunately
441 * epoxy_has_egl_extension _does_ let you query for client extensions, so
442 * we don't have to write our own extension string parsing.
444 * 4. There is no EGL_KHR_platform_base to complement the EXT one, thus one
445 * needs to know EGL 1.5 is supported in order to use the eglGetPlatformDisplay
447 * We can workaround this (circular dependency) by probing for the EGL 1.5
448 * platform extensions (EGL_KHR_platform_gbm and friends) yet it doesn't seem
449 * like mesa will be able to advertise these (even though it can do EGL 1.5).
451 static EGLDisplay qemu_egl_get_display(EGLNativeDisplayType native,
454 EGLDisplay dpy = EGL_NO_DISPLAY;
456 /* In practise any EGL 1.5 implementation would support the EXT extension */
457 if (epoxy_has_egl_extension(NULL, "EGL_EXT_platform_base")) {
459 dpy = eglGetPlatformDisplayEXT(platform, native, NULL);
463 if (dpy == EGL_NO_DISPLAY) {
465 dpy = eglGetDisplay(native);
470 static int qemu_egl_init_dpy(EGLNativeDisplayType dpy,
474 static const EGLint conf_att_core[] = {
475 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
476 EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
483 static const EGLint conf_att_gles[] = {
484 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
485 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
495 bool gles = (mode == DISPLAYGL_MODE_ES);
497 qemu_egl_display = qemu_egl_get_display(dpy, platform);
498 if (qemu_egl_display == EGL_NO_DISPLAY) {
499 error_report("egl: eglGetDisplay failed: %s", qemu_egl_get_error_string());
503 b = eglInitialize(qemu_egl_display, &major, &minor);
504 if (b == EGL_FALSE) {
505 error_report("egl: eglInitialize failed: %s", qemu_egl_get_error_string());
509 b = eglBindAPI(gles ? EGL_OPENGL_ES_API : EGL_OPENGL_API);
510 if (b == EGL_FALSE) {
511 error_report("egl: eglBindAPI failed (%s mode): %s",
512 gles ? "gles" : "core", qemu_egl_get_error_string());
516 b = eglChooseConfig(qemu_egl_display,
517 gles ? conf_att_gles : conf_att_core,
518 &qemu_egl_config, 1, &n);
519 if (b == EGL_FALSE || n != 1) {
520 error_report("egl: eglChooseConfig failed (%s mode): %s",
521 gles ? "gles" : "core", qemu_egl_get_error_string());
525 qemu_egl_mode = gles ? DISPLAYGL_MODE_ES : DISPLAYGL_MODE_CORE;
531 #if defined(CONFIG_X11) || defined(CONFIG_GBM)
532 int qemu_egl_init_dpy_x11(EGLNativeDisplayType dpy, DisplayGLMode mode)
534 #ifdef EGL_KHR_platform_x11
535 return qemu_egl_init_dpy(dpy, EGL_PLATFORM_X11_KHR, mode);
537 return qemu_egl_init_dpy(dpy, 0, mode);
541 int qemu_egl_init_dpy_mesa(EGLNativeDisplayType dpy, DisplayGLMode mode)
543 #ifdef EGL_MESA_platform_gbm
544 return qemu_egl_init_dpy(dpy, EGL_PLATFORM_GBM_MESA, mode);
546 return qemu_egl_init_dpy(dpy, 0, mode);
553 int qemu_egl_init_dpy_win32(EGLNativeDisplayType dpy, DisplayGLMode mode)
555 /* prefer GL ES, as that's what ANGLE supports */
556 if (mode == DISPLAYGL_MODE_ON) {
557 mode = DISPLAYGL_MODE_ES;
560 if (qemu_egl_init_dpy(dpy, 0, mode) < 0) {
564 #ifdef EGL_D3D11_DEVICE_ANGLE
565 if (epoxy_has_egl_extension(qemu_egl_display, "EGL_EXT_device_query")) {
569 if (!eglQueryDisplayAttribEXT(qemu_egl_display,
571 (EGLAttrib *)&device)) {
575 if (!eglQueryDeviceAttribEXT(device,
576 EGL_D3D11_DEVICE_ANGLE,
577 (EGLAttrib *)&d3d11_device)) {
581 trace_egl_init_d3d11_device(device);
582 qemu_egl_angle_d3d = device != NULL;
590 bool qemu_egl_has_dmabuf(void)
592 if (qemu_egl_display == EGL_NO_DISPLAY) {
596 return epoxy_has_egl_extension(qemu_egl_display,
597 "EGL_EXT_image_dma_buf_import");
600 EGLContext qemu_egl_init_ctx(void)
602 static const EGLint ctx_att_core[] = {
603 EGL_CONTEXT_OPENGL_PROFILE_MASK, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT,
606 static const EGLint ctx_att_gles[] = {
607 EGL_CONTEXT_CLIENT_VERSION, 2,
610 bool gles = (qemu_egl_mode == DISPLAYGL_MODE_ES);
614 ectx = eglCreateContext(qemu_egl_display, qemu_egl_config, EGL_NO_CONTEXT,
615 gles ? ctx_att_gles : ctx_att_core);
616 if (ectx == EGL_NO_CONTEXT) {
617 error_report("egl: eglCreateContext failed");
621 b = eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, ectx);
622 if (b == EGL_FALSE) {
623 error_report("egl: eglMakeCurrent failed");
630 bool egl_init(const char *rendernode, DisplayGLMode mode, Error **errp)
634 if (mode == DISPLAYGL_MODE_OFF) {
635 error_setg(errp, "egl: turning off GL doesn't make sense");
640 if (qemu_egl_init_dpy_win32(EGL_DEFAULT_DISPLAY, mode) < 0) {
641 error_setg(errp, "egl: init failed");
644 qemu_egl_rn_ctx = qemu_egl_init_ctx();
645 if (!qemu_egl_rn_ctx) {
646 error_setg(errp, "egl: egl_init_ctx failed");
649 #elif defined(CONFIG_GBM)
650 if (egl_rendernode_init(rendernode, mode) < 0) {
651 error_setg(errp, "egl: render node init failed");
656 if (!qemu_egl_rn_ctx) {
657 error_setg(errp, "egl: not available on this platform");