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"
19 #include "qemu/error-report.h"
20 #include "ui/console.h"
21 #include "ui/egl-helpers.h"
23 EGLDisplay *qemu_egl_display;
24 EGLConfig qemu_egl_config;
25 DisplayGLMode qemu_egl_mode;
27 /* ------------------------------------------------------------------ */
29 static void egl_fb_delete_texture(egl_fb *fb)
31 if (!fb->delete_texture) {
35 glDeleteTextures(1, &fb->texture);
36 fb->delete_texture = false;
39 void egl_fb_destroy(egl_fb *fb)
41 if (!fb->framebuffer) {
45 egl_fb_delete_texture(fb);
46 glDeleteFramebuffers(1, &fb->framebuffer);
54 void egl_fb_setup_default(egl_fb *fb, int width, int height)
58 fb->framebuffer = 0; /* default framebuffer */
61 void egl_fb_setup_for_tex(egl_fb *fb, int width, int height,
62 GLuint texture, bool delete)
64 egl_fb_delete_texture(fb);
68 fb->texture = texture;
69 fb->delete_texture = delete;
70 if (!fb->framebuffer) {
71 glGenFramebuffers(1, &fb->framebuffer);
74 glBindFramebuffer(GL_FRAMEBUFFER_EXT, fb->framebuffer);
75 glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
76 GL_TEXTURE_2D, fb->texture, 0);
79 void egl_fb_setup_new_tex(egl_fb *fb, int width, int height)
83 glGenTextures(1, &texture);
84 glBindTexture(GL_TEXTURE_2D, texture);
85 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height,
86 0, GL_BGRA, GL_UNSIGNED_BYTE, 0);
88 egl_fb_setup_for_tex(fb, width, height, texture, true);
91 void egl_fb_blit(egl_fb *dst, egl_fb *src, bool flip)
96 GLuint w = src->width;
97 GLuint h = src->height;
99 glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer);
100 glBindFramebuffer(GL_DRAW_FRAMEBUFFER, dst->framebuffer);
101 glViewport(0, 0, dst->width, dst->height);
106 w = src->dmabuf->scanout_width;
107 h = src->dmabuf->scanout_height;
110 w = (x1 + w) > src->width ? src->width - x1 : w;
111 h = (y1 + h) > src->height ? src->height - y1 : h;
113 y2 = flip ? y1 : h + y1;
114 y1 = flip ? h + y1 : y1;
117 glBlitFramebuffer(x1, y1, x2, y2,
118 0, 0, dst->width, dst->height,
119 GL_COLOR_BUFFER_BIT, GL_LINEAR);
122 void egl_fb_read(DisplaySurface *dst, egl_fb *src)
124 glBindFramebuffer(GL_READ_FRAMEBUFFER, src->framebuffer);
125 glReadBuffer(GL_COLOR_ATTACHMENT0_EXT);
126 glReadPixels(0, 0, surface_width(dst), surface_height(dst),
127 GL_BGRA, GL_UNSIGNED_BYTE, surface_data(dst));
130 void egl_texture_blit(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip)
132 glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer);
133 glViewport(0, 0, dst->width, dst->height);
134 glEnable(GL_TEXTURE_2D);
135 glBindTexture(GL_TEXTURE_2D, src->texture);
136 qemu_gl_run_texture_blit(gls, flip);
139 void egl_texture_blend(QemuGLShader *gls, egl_fb *dst, egl_fb *src, bool flip,
140 int x, int y, double scale_x, double scale_y)
142 glBindFramebuffer(GL_FRAMEBUFFER_EXT, dst->framebuffer);
143 int w = scale_x * src->width;
144 int h = scale_y * src->height;
146 glViewport(x, y, w, h);
148 glViewport(x, dst->height - h - y, w, h);
150 glEnable(GL_TEXTURE_2D);
151 glBindTexture(GL_TEXTURE_2D, src->texture);
153 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
154 qemu_gl_run_texture_blit(gls, flip);
158 /* ---------------------------------------------------------------------- */
163 struct gbm_device *qemu_egl_rn_gbm_dev;
164 EGLContext qemu_egl_rn_ctx;
166 int egl_rendernode_init(const char *rendernode, DisplayGLMode mode)
171 qemu_egl_rn_fd = qemu_drm_rendernode_open(rendernode);
172 if (qemu_egl_rn_fd == -1) {
173 error_report("egl: no drm render node available");
177 qemu_egl_rn_gbm_dev = gbm_create_device(qemu_egl_rn_fd);
178 if (!qemu_egl_rn_gbm_dev) {
179 error_report("egl: gbm_create_device failed");
183 rc = qemu_egl_init_dpy_mesa((EGLNativeDisplayType)qemu_egl_rn_gbm_dev,
186 /* qemu_egl_init_dpy_mesa reports error */
190 if (!epoxy_has_egl_extension(qemu_egl_display,
191 "EGL_KHR_surfaceless_context")) {
192 error_report("egl: EGL_KHR_surfaceless_context not supported");
195 if (!epoxy_has_egl_extension(qemu_egl_display,
196 "EGL_MESA_image_dma_buf_export")) {
197 error_report("egl: EGL_MESA_image_dma_buf_export not supported");
201 qemu_egl_rn_ctx = qemu_egl_init_ctx();
202 if (!qemu_egl_rn_ctx) {
203 error_report("egl: egl_init_ctx failed");
210 if (qemu_egl_rn_gbm_dev) {
211 gbm_device_destroy(qemu_egl_rn_gbm_dev);
213 if (qemu_egl_rn_fd != -1) {
214 close(qemu_egl_rn_fd);
220 int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc,
221 EGLuint64KHR *modifier)
224 EGLint num_planes, fd;
226 image = eglCreateImageKHR(qemu_egl_display, eglGetCurrentContext(),
227 EGL_GL_TEXTURE_2D_KHR,
228 (EGLClientBuffer)(unsigned long)tex_id,
234 eglExportDMABUFImageQueryMESA(qemu_egl_display, image, fourcc,
235 &num_planes, modifier);
236 if (num_planes != 1) {
237 eglDestroyImageKHR(qemu_egl_display, image);
240 eglExportDMABUFImageMESA(qemu_egl_display, image, &fd, stride, NULL);
241 eglDestroyImageKHR(qemu_egl_display, image);
246 void egl_dmabuf_import_texture(QemuDmaBuf *dmabuf)
248 EGLImageKHR image = EGL_NO_IMAGE_KHR;
252 if (dmabuf->texture != 0) {
256 attrs[i++] = EGL_WIDTH;
257 attrs[i++] = dmabuf->width;
258 attrs[i++] = EGL_HEIGHT;
259 attrs[i++] = dmabuf->height;
260 attrs[i++] = EGL_LINUX_DRM_FOURCC_EXT;
261 attrs[i++] = dmabuf->fourcc;
263 attrs[i++] = EGL_DMA_BUF_PLANE0_FD_EXT;
264 attrs[i++] = dmabuf->fd;
265 attrs[i++] = EGL_DMA_BUF_PLANE0_PITCH_EXT;
266 attrs[i++] = dmabuf->stride;
267 attrs[i++] = EGL_DMA_BUF_PLANE0_OFFSET_EXT;
269 #ifdef EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT
270 if (dmabuf->modifier) {
271 attrs[i++] = EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT;
272 attrs[i++] = (dmabuf->modifier >> 0) & 0xffffffff;
273 attrs[i++] = EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT;
274 attrs[i++] = (dmabuf->modifier >> 32) & 0xffffffff;
277 attrs[i++] = EGL_NONE;
279 image = eglCreateImageKHR(qemu_egl_display,
281 EGL_LINUX_DMA_BUF_EXT,
283 if (image == EGL_NO_IMAGE_KHR) {
284 error_report("eglCreateImageKHR failed");
288 glGenTextures(1, &dmabuf->texture);
289 glBindTexture(GL_TEXTURE_2D, dmabuf->texture);
290 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
291 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
293 glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image);
294 eglDestroyImageKHR(qemu_egl_display, image);
297 void egl_dmabuf_release_texture(QemuDmaBuf *dmabuf)
299 if (dmabuf->texture == 0) {
303 glDeleteTextures(1, &dmabuf->texture);
307 void egl_dmabuf_create_sync(QemuDmaBuf *dmabuf)
311 if (epoxy_has_egl_extension(qemu_egl_display,
312 "EGL_KHR_fence_sync") &&
313 epoxy_has_egl_extension(qemu_egl_display,
314 "EGL_ANDROID_native_fence_sync")) {
315 sync = eglCreateSyncKHR(qemu_egl_display,
316 EGL_SYNC_NATIVE_FENCE_ANDROID, NULL);
317 if (sync != EGL_NO_SYNC_KHR) {
323 void egl_dmabuf_create_fence(QemuDmaBuf *dmabuf)
326 dmabuf->fence_fd = eglDupNativeFenceFDANDROID(qemu_egl_display,
328 eglDestroySyncKHR(qemu_egl_display, dmabuf->sync);
333 #endif /* CONFIG_GBM */
335 /* ---------------------------------------------------------------------- */
337 EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, EGLNativeWindowType win)
342 esurface = eglCreateWindowSurface(qemu_egl_display,
345 if (esurface == EGL_NO_SURFACE) {
346 error_report("egl: eglCreateWindowSurface failed");
350 b = eglMakeCurrent(qemu_egl_display, esurface, esurface, ectx);
351 if (b == EGL_FALSE) {
352 error_report("egl: eglMakeCurrent failed");
359 /* ---------------------------------------------------------------------- */
361 #if defined(CONFIG_X11) || defined(CONFIG_GBM)
364 * Taken from glamor_egl.h from the Xorg xserver, which is MIT licensed
366 * Create an EGLDisplay from a native display type. This is a little quirky
369 * 1: GetPlatformDisplayEXT and GetPlatformDisplay are the API you want to
370 * use, but have different function signatures in the third argument; this
371 * happens not to matter for us, at the moment, but it means epoxy won't alias
374 * 2: epoxy 1.3 and earlier don't understand EGL client extensions, which
375 * means you can't call "eglGetPlatformDisplayEXT" directly, as the resolver
378 * 3: You can't tell whether you have EGL 1.5 at this point, because
379 * eglQueryString(EGL_VERSION) is a property of the display, which we don't
380 * have yet. So you have to query for extensions no matter what. Fortunately
381 * epoxy_has_egl_extension _does_ let you query for client extensions, so
382 * we don't have to write our own extension string parsing.
384 * 4. There is no EGL_KHR_platform_base to complement the EXT one, thus one
385 * needs to know EGL 1.5 is supported in order to use the eglGetPlatformDisplay
387 * We can workaround this (circular dependency) by probing for the EGL 1.5
388 * platform extensions (EGL_KHR_platform_gbm and friends) yet it doesn't seem
389 * like mesa will be able to advertise these (even though it can do EGL 1.5).
391 static EGLDisplay qemu_egl_get_display(EGLNativeDisplayType native,
394 EGLDisplay dpy = EGL_NO_DISPLAY;
396 /* In practise any EGL 1.5 implementation would support the EXT extension */
397 if (epoxy_has_egl_extension(NULL, "EGL_EXT_platform_base")) {
398 PFNEGLGETPLATFORMDISPLAYEXTPROC getPlatformDisplayEXT =
399 (void *) eglGetProcAddress("eglGetPlatformDisplayEXT");
400 if (getPlatformDisplayEXT && platform != 0) {
401 dpy = getPlatformDisplayEXT(platform, native, NULL);
405 if (dpy == EGL_NO_DISPLAY) {
407 dpy = eglGetDisplay(native);
412 static int qemu_egl_init_dpy(EGLNativeDisplayType dpy,
416 static const EGLint conf_att_core[] = {
417 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
418 EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
425 static const EGLint conf_att_gles[] = {
426 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
427 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
437 bool gles = (mode == DISPLAYGL_MODE_ES);
439 qemu_egl_display = qemu_egl_get_display(dpy, platform);
440 if (qemu_egl_display == EGL_NO_DISPLAY) {
441 error_report("egl: eglGetDisplay failed");
445 b = eglInitialize(qemu_egl_display, &major, &minor);
446 if (b == EGL_FALSE) {
447 error_report("egl: eglInitialize failed");
451 b = eglBindAPI(gles ? EGL_OPENGL_ES_API : EGL_OPENGL_API);
452 if (b == EGL_FALSE) {
453 error_report("egl: eglBindAPI failed (%s mode)",
454 gles ? "gles" : "core");
458 b = eglChooseConfig(qemu_egl_display,
459 gles ? conf_att_gles : conf_att_core,
460 &qemu_egl_config, 1, &n);
461 if (b == EGL_FALSE || n != 1) {
462 error_report("egl: eglChooseConfig failed (%s mode)",
463 gles ? "gles" : "core");
467 qemu_egl_mode = gles ? DISPLAYGL_MODE_ES : DISPLAYGL_MODE_CORE;
471 int qemu_egl_init_dpy_x11(EGLNativeDisplayType dpy, DisplayGLMode mode)
473 #ifdef EGL_KHR_platform_x11
474 return qemu_egl_init_dpy(dpy, EGL_PLATFORM_X11_KHR, mode);
476 return qemu_egl_init_dpy(dpy, 0, mode);
480 int qemu_egl_init_dpy_mesa(EGLNativeDisplayType dpy, DisplayGLMode mode)
482 #ifdef EGL_MESA_platform_gbm
483 return qemu_egl_init_dpy(dpy, EGL_PLATFORM_GBM_MESA, mode);
485 return qemu_egl_init_dpy(dpy, 0, mode);
491 bool qemu_egl_has_dmabuf(void)
493 if (qemu_egl_display == EGL_NO_DISPLAY) {
497 return epoxy_has_egl_extension(qemu_egl_display,
498 "EGL_EXT_image_dma_buf_import");
501 EGLContext qemu_egl_init_ctx(void)
503 static const EGLint ctx_att_core[] = {
504 EGL_CONTEXT_OPENGL_PROFILE_MASK, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT,
507 static const EGLint ctx_att_gles[] = {
508 EGL_CONTEXT_CLIENT_VERSION, 2,
511 bool gles = (qemu_egl_mode == DISPLAYGL_MODE_ES);
515 ectx = eglCreateContext(qemu_egl_display, qemu_egl_config, EGL_NO_CONTEXT,
516 gles ? ctx_att_gles : ctx_att_core);
517 if (ectx == EGL_NO_CONTEXT) {
518 error_report("egl: eglCreateContext failed");
522 b = eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, ectx);
523 if (b == EGL_FALSE) {
524 error_report("egl: eglMakeCurrent failed");