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"
21 #include "qemu/error-report.h"
22 #include "ui/egl-helpers.h"
24 EGLDisplay *qemu_egl_display;
25 EGLConfig qemu_egl_config;
27 /* ---------------------------------------------------------------------- */
32 #define egl_dbg(_x ...) \
35 fprintf(stderr, "egl: " _x); \
39 /* ---------------------------------------------------------------------- */
41 #ifdef CONFIG_OPENGL_DMABUF
44 struct gbm_device *qemu_egl_rn_gbm_dev;
45 EGLContext qemu_egl_rn_ctx;
47 int qemu_egl_rendernode_open(void)
54 dir = opendir("/dev/dri");
60 while ((e = readdir(dir))) {
61 if (e->d_type != DT_CHR) {
65 if (strncmp(e->d_name, "renderD", 7)) {
69 p = g_strdup_printf("/dev/dri/%s", e->d_name);
71 r = open(p, O_RDWR | O_CLOEXEC | O_NOCTTY | O_NONBLOCK);
88 int egl_rendernode_init(void)
92 qemu_egl_rn_fd = qemu_egl_rendernode_open();
93 if (qemu_egl_rn_fd == -1) {
94 error_report("egl: no drm render node available");
98 qemu_egl_rn_gbm_dev = gbm_create_device(qemu_egl_rn_fd);
99 if (!qemu_egl_rn_gbm_dev) {
100 error_report("egl: gbm_create_device failed");
104 qemu_egl_init_dpy((EGLNativeDisplayType)qemu_egl_rn_gbm_dev, false, false);
106 if (!epoxy_has_egl_extension(qemu_egl_display,
107 "EGL_KHR_surfaceless_context")) {
108 error_report("egl: EGL_KHR_surfaceless_context not supported");
111 if (!epoxy_has_egl_extension(qemu_egl_display,
112 "EGL_MESA_image_dma_buf_export")) {
113 error_report("egl: EGL_MESA_image_dma_buf_export not supported");
117 qemu_egl_rn_ctx = qemu_egl_init_ctx();
118 if (!qemu_egl_rn_ctx) {
119 error_report("egl: egl_init_ctx failed");
126 if (qemu_egl_rn_gbm_dev) {
127 gbm_device_destroy(qemu_egl_rn_gbm_dev);
129 if (qemu_egl_rn_fd != -1) {
130 close(qemu_egl_rn_fd);
136 int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc)
139 EGLint num_planes, fd;
141 image = eglCreateImageKHR(qemu_egl_display, eglGetCurrentContext(),
142 EGL_GL_TEXTURE_2D_KHR,
143 (EGLClientBuffer)(unsigned long)tex_id,
149 eglExportDMABUFImageQueryMESA(qemu_egl_display, image, fourcc,
151 if (num_planes != 1) {
152 eglDestroyImageKHR(qemu_egl_display, image);
155 eglExportDMABUFImageMESA(qemu_egl_display, image, &fd, stride, NULL);
156 eglDestroyImageKHR(qemu_egl_display, image);
161 #endif /* CONFIG_OPENGL_DMABUF */
163 /* ---------------------------------------------------------------------- */
165 EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, Window win)
170 egl_dbg("eglCreateWindowSurface (x11 win id 0x%lx) ...\n",
171 (unsigned long) win);
172 esurface = eglCreateWindowSurface(qemu_egl_display,
174 (EGLNativeWindowType)win, NULL);
175 if (esurface == EGL_NO_SURFACE) {
176 error_report("egl: eglCreateWindowSurface failed");
180 b = eglMakeCurrent(qemu_egl_display, esurface, esurface, ectx);
181 if (b == EGL_FALSE) {
182 error_report("egl: eglMakeCurrent failed");
189 /* ---------------------------------------------------------------------- */
191 int qemu_egl_init_dpy(EGLNativeDisplayType dpy, bool gles, bool debug)
193 static const EGLint conf_att_gl[] = {
194 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
195 EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
202 static const EGLint conf_att_gles[] = {
203 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
204 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
217 setenv("EGL_LOG_LEVEL", "debug", true);
218 setenv("LIBGL_DEBUG", "verbose", true);
221 egl_dbg("eglGetDisplay (dpy %p) ...\n", dpy);
222 qemu_egl_display = eglGetDisplay(dpy);
223 if (qemu_egl_display == EGL_NO_DISPLAY) {
224 error_report("egl: eglGetDisplay failed");
228 egl_dbg("eglInitialize ...\n");
229 b = eglInitialize(qemu_egl_display, &major, &minor);
230 if (b == EGL_FALSE) {
231 error_report("egl: eglInitialize failed");
235 egl_dbg("eglBindAPI ...\n");
236 b = eglBindAPI(gles ? EGL_OPENGL_ES_API : EGL_OPENGL_API);
237 if (b == EGL_FALSE) {
238 error_report("egl: eglBindAPI failed");
242 egl_dbg("eglChooseConfig ...\n");
243 b = eglChooseConfig(qemu_egl_display,
244 gles ? conf_att_gles : conf_att_gl,
245 &qemu_egl_config, 1, &n);
246 if (b == EGL_FALSE || n != 1) {
247 error_report("egl: eglChooseConfig failed");
255 EGLContext qemu_egl_init_ctx(void)
257 static const EGLint ctx_att_gl[] = {
260 static const EGLint ctx_att_gles[] = {
261 EGL_CONTEXT_CLIENT_VERSION, 2,
268 egl_dbg("eglCreateContext ...\n");
269 ectx = eglCreateContext(qemu_egl_display, qemu_egl_config, EGL_NO_CONTEXT,
270 egl_gles ? ctx_att_gles : ctx_att_gl);
271 if (ectx == EGL_NO_CONTEXT) {
272 error_report("egl: eglCreateContext failed");
276 b = eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, ectx);
277 if (b == EGL_FALSE) {
278 error_report("egl: eglMakeCurrent failed");