1 #include "qemu/osdep.h"
5 #include "ui/egl-helpers.h"
7 EGLDisplay *qemu_egl_display;
8 EGLConfig qemu_egl_config;
10 /* ---------------------------------------------------------------------- */
15 #define egl_dbg(_x ...) \
18 fprintf(stderr, "egl: " _x); \
22 /* ---------------------------------------------------------------------- */
24 #ifdef CONFIG_OPENGL_DMABUF
27 struct gbm_device *qemu_egl_rn_gbm_dev;
28 EGLContext qemu_egl_rn_ctx;
30 int qemu_egl_rendernode_open(void)
37 dir = opendir("/dev/dri");
43 while ((e = readdir(dir))) {
44 if (e->d_type != DT_CHR) {
48 if (strncmp(e->d_name, "renderD", 7)) {
52 r = asprintf(&p, "/dev/dri/%s", e->d_name);
57 r = open(p, O_RDWR | O_CLOEXEC | O_NOCTTY | O_NONBLOCK);
74 int egl_rendernode_init(void)
78 qemu_egl_rn_fd = qemu_egl_rendernode_open();
79 if (qemu_egl_rn_fd == -1) {
80 fprintf(stderr, "egl: no drm render node available\n");
84 qemu_egl_rn_gbm_dev = gbm_create_device(qemu_egl_rn_fd);
85 if (!qemu_egl_rn_gbm_dev) {
86 fprintf(stderr, "egl: gbm_create_device failed\n");
90 qemu_egl_init_dpy((EGLNativeDisplayType)qemu_egl_rn_gbm_dev, false, false);
92 if (!epoxy_has_egl_extension(qemu_egl_display,
93 "EGL_KHR_surfaceless_context")) {
94 fprintf(stderr, "egl: EGL_KHR_surfaceless_context not supported\n");
97 if (!epoxy_has_egl_extension(qemu_egl_display,
98 "EGL_MESA_image_dma_buf_export")) {
99 fprintf(stderr, "egl: EGL_MESA_image_dma_buf_export not supported\n");
103 qemu_egl_rn_ctx = qemu_egl_init_ctx();
104 if (!qemu_egl_rn_ctx) {
105 fprintf(stderr, "egl: egl_init_ctx failed\n");
112 if (qemu_egl_rn_gbm_dev) {
113 gbm_device_destroy(qemu_egl_rn_gbm_dev);
115 if (qemu_egl_rn_fd != -1) {
116 close(qemu_egl_rn_fd);
122 int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc)
125 EGLint num_planes, fd;
127 image = eglCreateImageKHR(qemu_egl_display, eglGetCurrentContext(),
128 EGL_GL_TEXTURE_2D_KHR,
129 (EGLClientBuffer)(unsigned long)tex_id,
135 eglExportDMABUFImageQueryMESA(qemu_egl_display, image, fourcc,
137 if (num_planes != 1) {
138 eglDestroyImageKHR(qemu_egl_display, image);
141 eglExportDMABUFImageMESA(qemu_egl_display, image, &fd, stride, NULL);
142 eglDestroyImageKHR(qemu_egl_display, image);
147 #endif /* CONFIG_OPENGL_DMABUF */
149 /* ---------------------------------------------------------------------- */
151 EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, Window win)
156 egl_dbg("eglCreateWindowSurface (x11 win id 0x%lx) ...\n",
157 (unsigned long) win);
158 esurface = eglCreateWindowSurface(qemu_egl_display,
160 (EGLNativeWindowType)win, NULL);
161 if (esurface == EGL_NO_SURFACE) {
162 fprintf(stderr, "egl: eglCreateWindowSurface failed\n");
166 b = eglMakeCurrent(qemu_egl_display, esurface, esurface, ectx);
167 if (b == EGL_FALSE) {
168 fprintf(stderr, "egl: eglMakeCurrent failed\n");
175 /* ---------------------------------------------------------------------- */
177 int qemu_egl_init_dpy(EGLNativeDisplayType dpy, bool gles, bool debug)
179 static const EGLint conf_att_gl[] = {
180 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
181 EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
188 static const EGLint conf_att_gles[] = {
189 EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
190 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
203 setenv("EGL_LOG_LEVEL", "debug", true);
204 setenv("LIBGL_DEBUG", "verbose", true);
207 egl_dbg("eglGetDisplay (dpy %p) ...\n", dpy);
208 qemu_egl_display = eglGetDisplay(dpy);
209 if (qemu_egl_display == EGL_NO_DISPLAY) {
210 fprintf(stderr, "egl: eglGetDisplay failed\n");
214 egl_dbg("eglInitialize ...\n");
215 b = eglInitialize(qemu_egl_display, &major, &minor);
216 if (b == EGL_FALSE) {
217 fprintf(stderr, "egl: eglInitialize failed\n");
221 egl_dbg("eglBindAPI ...\n");
222 b = eglBindAPI(gles ? EGL_OPENGL_ES_API : EGL_OPENGL_API);
223 if (b == EGL_FALSE) {
224 fprintf(stderr, "egl: eglBindAPI failed\n");
228 egl_dbg("eglChooseConfig ...\n");
229 b = eglChooseConfig(qemu_egl_display,
230 gles ? conf_att_gles : conf_att_gl,
231 &qemu_egl_config, 1, &n);
232 if (b == EGL_FALSE || n != 1) {
233 fprintf(stderr, "egl: eglChooseConfig failed\n");
241 EGLContext qemu_egl_init_ctx(void)
243 static const EGLint ctx_att_gl[] = {
246 static const EGLint ctx_att_gles[] = {
247 EGL_CONTEXT_CLIENT_VERSION, 2,
254 egl_dbg("eglCreateContext ...\n");
255 ectx = eglCreateContext(qemu_egl_display, qemu_egl_config, EGL_NO_CONTEXT,
256 egl_gles ? ctx_att_gles : ctx_att_gl);
257 if (ectx == EGL_NO_CONTEXT) {
258 fprintf(stderr, "egl: eglCreateContext failed\n");
262 b = eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, ectx);
263 if (b == EGL_FALSE) {
264 fprintf(stderr, "egl: eglMakeCurrent failed\n");