Peter Maydell | e16f4c8 | 2016-01-29 17:49:51 +0000 | [diff] [blame] | 1 | #include "qemu/osdep.h" |
Gerd Hoffmann | 7ced9e9 | 2015-01-06 15:40:00 +0100 | [diff] [blame] | 2 | #include <glob.h> |
Gerd Hoffmann | 1e31659 | 2015-10-12 12:03:49 +0200 | [diff] [blame] | 3 | #include <dirent.h> |
Gerd Hoffmann | 7ced9e9 | 2015-01-06 15:40:00 +0100 | [diff] [blame] | 4 | |
| 5 | #include "ui/egl-helpers.h" |
| 6 | |
| 7 | EGLDisplay *qemu_egl_display; |
| 8 | EGLConfig qemu_egl_config; |
| 9 | |
| 10 | /* ---------------------------------------------------------------------- */ |
| 11 | |
| 12 | static bool egl_gles; |
| 13 | static int egl_debug; |
| 14 | |
| 15 | #define egl_dbg(_x ...) \ |
| 16 | do { \ |
| 17 | if (egl_debug) { \ |
| 18 | fprintf(stderr, "egl: " _x); \ |
| 19 | } \ |
| 20 | } while (0); |
| 21 | |
| 22 | /* ---------------------------------------------------------------------- */ |
| 23 | |
Gerd Hoffmann | 1e31659 | 2015-10-12 12:03:49 +0200 | [diff] [blame] | 24 | #ifdef CONFIG_OPENGL_DMABUF |
| 25 | |
| 26 | int qemu_egl_rn_fd; |
| 27 | struct gbm_device *qemu_egl_rn_gbm_dev; |
| 28 | EGLContext qemu_egl_rn_ctx; |
| 29 | |
| 30 | int qemu_egl_rendernode_open(void) |
| 31 | { |
| 32 | DIR *dir; |
| 33 | struct dirent *e; |
| 34 | int r, fd; |
| 35 | char *p; |
| 36 | |
| 37 | dir = opendir("/dev/dri"); |
| 38 | if (!dir) { |
| 39 | return -1; |
| 40 | } |
| 41 | |
| 42 | fd = -1; |
| 43 | while ((e = readdir(dir))) { |
| 44 | if (e->d_type != DT_CHR) { |
| 45 | continue; |
| 46 | } |
| 47 | |
| 48 | if (strncmp(e->d_name, "renderD", 7)) { |
| 49 | continue; |
| 50 | } |
| 51 | |
Gonglei | f454f49 | 2016-05-12 17:57:07 +0800 | [diff] [blame] | 52 | p = g_strdup_printf("/dev/dri/%s", e->d_name); |
Gerd Hoffmann | 1e31659 | 2015-10-12 12:03:49 +0200 | [diff] [blame] | 53 | |
| 54 | r = open(p, O_RDWR | O_CLOEXEC | O_NOCTTY | O_NONBLOCK); |
| 55 | if (r < 0) { |
Gonglei | f454f49 | 2016-05-12 17:57:07 +0800 | [diff] [blame] | 56 | g_free(p); |
Gerd Hoffmann | 1e31659 | 2015-10-12 12:03:49 +0200 | [diff] [blame] | 57 | continue; |
| 58 | } |
| 59 | fd = r; |
Gonglei | f454f49 | 2016-05-12 17:57:07 +0800 | [diff] [blame] | 60 | g_free(p); |
Gerd Hoffmann | 1e31659 | 2015-10-12 12:03:49 +0200 | [diff] [blame] | 61 | break; |
| 62 | } |
| 63 | |
| 64 | closedir(dir); |
| 65 | if (fd < 0) { |
| 66 | return -1; |
| 67 | } |
| 68 | return fd; |
| 69 | } |
| 70 | |
| 71 | int egl_rendernode_init(void) |
| 72 | { |
| 73 | qemu_egl_rn_fd = -1; |
| 74 | |
| 75 | qemu_egl_rn_fd = qemu_egl_rendernode_open(); |
| 76 | if (qemu_egl_rn_fd == -1) { |
| 77 | fprintf(stderr, "egl: no drm render node available\n"); |
| 78 | goto err; |
| 79 | } |
| 80 | |
| 81 | qemu_egl_rn_gbm_dev = gbm_create_device(qemu_egl_rn_fd); |
| 82 | if (!qemu_egl_rn_gbm_dev) { |
| 83 | fprintf(stderr, "egl: gbm_create_device failed\n"); |
| 84 | goto err; |
| 85 | } |
| 86 | |
| 87 | qemu_egl_init_dpy((EGLNativeDisplayType)qemu_egl_rn_gbm_dev, false, false); |
| 88 | |
| 89 | if (!epoxy_has_egl_extension(qemu_egl_display, |
| 90 | "EGL_KHR_surfaceless_context")) { |
| 91 | fprintf(stderr, "egl: EGL_KHR_surfaceless_context not supported\n"); |
| 92 | goto err; |
| 93 | } |
| 94 | if (!epoxy_has_egl_extension(qemu_egl_display, |
| 95 | "EGL_MESA_image_dma_buf_export")) { |
| 96 | fprintf(stderr, "egl: EGL_MESA_image_dma_buf_export not supported\n"); |
| 97 | goto err; |
| 98 | } |
| 99 | |
| 100 | qemu_egl_rn_ctx = qemu_egl_init_ctx(); |
| 101 | if (!qemu_egl_rn_ctx) { |
| 102 | fprintf(stderr, "egl: egl_init_ctx failed\n"); |
| 103 | goto err; |
| 104 | } |
| 105 | |
| 106 | return 0; |
| 107 | |
| 108 | err: |
| 109 | if (qemu_egl_rn_gbm_dev) { |
| 110 | gbm_device_destroy(qemu_egl_rn_gbm_dev); |
| 111 | } |
| 112 | if (qemu_egl_rn_fd != -1) { |
| 113 | close(qemu_egl_rn_fd); |
| 114 | } |
| 115 | |
| 116 | return -1; |
| 117 | } |
| 118 | |
| 119 | int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc) |
| 120 | { |
| 121 | EGLImageKHR image; |
| 122 | EGLint num_planes, fd; |
| 123 | |
| 124 | image = eglCreateImageKHR(qemu_egl_display, eglGetCurrentContext(), |
| 125 | EGL_GL_TEXTURE_2D_KHR, |
| 126 | (EGLClientBuffer)(unsigned long)tex_id, |
| 127 | NULL); |
| 128 | if (!image) { |
| 129 | return -1; |
| 130 | } |
| 131 | |
| 132 | eglExportDMABUFImageQueryMESA(qemu_egl_display, image, fourcc, |
| 133 | &num_planes, NULL); |
| 134 | if (num_planes != 1) { |
| 135 | eglDestroyImageKHR(qemu_egl_display, image); |
| 136 | return -1; |
| 137 | } |
| 138 | eglExportDMABUFImageMESA(qemu_egl_display, image, &fd, stride, NULL); |
| 139 | eglDestroyImageKHR(qemu_egl_display, image); |
| 140 | |
| 141 | return fd; |
| 142 | } |
| 143 | |
| 144 | #endif /* CONFIG_OPENGL_DMABUF */ |
| 145 | |
| 146 | /* ---------------------------------------------------------------------- */ |
| 147 | |
Gerd Hoffmann | 7ced9e9 | 2015-01-06 15:40:00 +0100 | [diff] [blame] | 148 | EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, Window win) |
| 149 | { |
| 150 | EGLSurface esurface; |
| 151 | EGLBoolean b; |
| 152 | |
| 153 | egl_dbg("eglCreateWindowSurface (x11 win id 0x%lx) ...\n", |
| 154 | (unsigned long) win); |
| 155 | esurface = eglCreateWindowSurface(qemu_egl_display, |
| 156 | qemu_egl_config, |
| 157 | (EGLNativeWindowType)win, NULL); |
| 158 | if (esurface == EGL_NO_SURFACE) { |
| 159 | fprintf(stderr, "egl: eglCreateWindowSurface failed\n"); |
| 160 | return NULL; |
| 161 | } |
| 162 | |
| 163 | b = eglMakeCurrent(qemu_egl_display, esurface, esurface, ectx); |
| 164 | if (b == EGL_FALSE) { |
| 165 | fprintf(stderr, "egl: eglMakeCurrent failed\n"); |
| 166 | return NULL; |
| 167 | } |
| 168 | |
| 169 | return esurface; |
| 170 | } |
| 171 | |
| 172 | /* ---------------------------------------------------------------------- */ |
| 173 | |
| 174 | int qemu_egl_init_dpy(EGLNativeDisplayType dpy, bool gles, bool debug) |
| 175 | { |
| 176 | static const EGLint conf_att_gl[] = { |
| 177 | EGL_SURFACE_TYPE, EGL_WINDOW_BIT, |
| 178 | EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT, |
| 179 | EGL_RED_SIZE, 5, |
| 180 | EGL_GREEN_SIZE, 5, |
| 181 | EGL_BLUE_SIZE, 5, |
| 182 | EGL_ALPHA_SIZE, 0, |
| 183 | EGL_NONE, |
| 184 | }; |
| 185 | static const EGLint conf_att_gles[] = { |
| 186 | EGL_SURFACE_TYPE, EGL_WINDOW_BIT, |
| 187 | EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, |
| 188 | EGL_RED_SIZE, 5, |
| 189 | EGL_GREEN_SIZE, 5, |
| 190 | EGL_BLUE_SIZE, 5, |
| 191 | EGL_ALPHA_SIZE, 0, |
| 192 | EGL_NONE, |
| 193 | }; |
| 194 | EGLint major, minor; |
| 195 | EGLBoolean b; |
| 196 | EGLint n; |
| 197 | |
| 198 | if (debug) { |
| 199 | egl_debug = 1; |
| 200 | setenv("EGL_LOG_LEVEL", "debug", true); |
| 201 | setenv("LIBGL_DEBUG", "verbose", true); |
| 202 | } |
| 203 | |
| 204 | egl_dbg("eglGetDisplay (dpy %p) ...\n", dpy); |
| 205 | qemu_egl_display = eglGetDisplay(dpy); |
| 206 | if (qemu_egl_display == EGL_NO_DISPLAY) { |
| 207 | fprintf(stderr, "egl: eglGetDisplay failed\n"); |
| 208 | return -1; |
| 209 | } |
| 210 | |
| 211 | egl_dbg("eglInitialize ...\n"); |
| 212 | b = eglInitialize(qemu_egl_display, &major, &minor); |
| 213 | if (b == EGL_FALSE) { |
| 214 | fprintf(stderr, "egl: eglInitialize failed\n"); |
| 215 | return -1; |
| 216 | } |
| 217 | |
| 218 | egl_dbg("eglBindAPI ...\n"); |
| 219 | b = eglBindAPI(gles ? EGL_OPENGL_ES_API : EGL_OPENGL_API); |
| 220 | if (b == EGL_FALSE) { |
| 221 | fprintf(stderr, "egl: eglBindAPI failed\n"); |
| 222 | return -1; |
| 223 | } |
| 224 | |
| 225 | egl_dbg("eglChooseConfig ...\n"); |
| 226 | b = eglChooseConfig(qemu_egl_display, |
| 227 | gles ? conf_att_gles : conf_att_gl, |
| 228 | &qemu_egl_config, 1, &n); |
| 229 | if (b == EGL_FALSE || n != 1) { |
| 230 | fprintf(stderr, "egl: eglChooseConfig failed\n"); |
| 231 | return -1; |
| 232 | } |
| 233 | |
| 234 | egl_gles = gles; |
| 235 | return 0; |
| 236 | } |
| 237 | |
| 238 | EGLContext qemu_egl_init_ctx(void) |
| 239 | { |
| 240 | static const EGLint ctx_att_gl[] = { |
| 241 | EGL_NONE |
| 242 | }; |
| 243 | static const EGLint ctx_att_gles[] = { |
| 244 | EGL_CONTEXT_CLIENT_VERSION, 2, |
| 245 | EGL_NONE |
| 246 | }; |
| 247 | |
| 248 | EGLContext ectx; |
| 249 | EGLBoolean b; |
| 250 | |
| 251 | egl_dbg("eglCreateContext ...\n"); |
| 252 | ectx = eglCreateContext(qemu_egl_display, qemu_egl_config, EGL_NO_CONTEXT, |
| 253 | egl_gles ? ctx_att_gles : ctx_att_gl); |
| 254 | if (ectx == EGL_NO_CONTEXT) { |
| 255 | fprintf(stderr, "egl: eglCreateContext failed\n"); |
| 256 | return NULL; |
| 257 | } |
| 258 | |
| 259 | b = eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, ectx); |
| 260 | if (b == EGL_FALSE) { |
| 261 | fprintf(stderr, "egl: eglMakeCurrent failed\n"); |
| 262 | return NULL; |
| 263 | } |
| 264 | |
| 265 | return ectx; |
| 266 | } |