mirrors/wlroots
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/wlroots/wlroots.git synced 2025-10-29 05:40:12 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

render/egl: accept negative DRM FD to select software rendering

Browse source
This commit is contained in:
Simon Ser 2024-10-03 18:52:27 +02:00
parent 7cf8e80ffe
commit b4ce0d8b39
1 changed files with 48 additions and 24 deletions
Download patch file Download diff file Expand all files Collapse all files

62
render/egl.c
View file

@ -312,17 +312,6 @@ static bool egl_init_display(struct wlr_egl *egl, EGLDisplay display) {
return false;
}
if (check_egl_ext(device_exts_str, "EGL_MESA_device_software")) {
if (env_parse_bool("WLR_RENDERER_ALLOW_SOFTWARE")) {
wlr_log(WLR_INFO, "Using software rendering");
} else {
wlr_log(WLR_ERROR, "Software rendering detected, please use "
"the WLR_RENDERER_ALLOW_SOFTWARE environment variable "
"to proceed");
return false;
}
}
#ifdef EGL_DRIVER_NAME_EXT
if (check_egl_ext(device_exts_str, "EGL_EXT_device_persistent_id")) {
driver_name = egl->procs.eglQueryDeviceStringEXT(egl->device,
@ -334,6 +323,20 @@ static bool egl_init_display(struct wlr_egl *egl, EGLDisplay display) {
check_egl_ext(device_exts_str, "EGL_EXT_device_drm");
egl->exts.EXT_device_drm_render_node =
check_egl_ext(device_exts_str, "EGL_EXT_device_drm_render_node");
// The only way a non-DRM device is selected is when the user
// explicitly picks software rendering
if (check_egl_ext(device_exts_str, "EGL_MESA_device_software") &&
egl->exts.EXT_device_drm) {
if (env_parse_bool("WLR_RENDERER_ALLOW_SOFTWARE")) {
wlr_log(WLR_INFO, "Using software rendering");
} else {
wlr_log(WLR_ERROR, "Software rendering detected, please use "
"the WLR_RENDERER_ALLOW_SOFTWARE environment variable "
"to proceed");
return false;
}
}
}
if (!check_egl_ext(display_exts_str, "EGL_KHR_no_config_context") &&
@ -480,30 +483,51 @@ static EGLDeviceEXT get_egl_device_from_drm_fd(struct wlr_egl *egl,
return EGL_NO_DEVICE_EXT;
}
drmDevice *device = NULL;
int ret = drmGetDevice(drm_fd, &device);
drmDevice *selected_drm_device = NULL;
if (drm_fd >= 0) {
int ret = drmGetDevice(drm_fd, &selected_drm_device);
if (ret < 0) {
wlr_log(WLR_ERROR, "Failed to get DRM device: %s", strerror(-ret));
free(devices);
return EGL_NO_DEVICE_EXT;
}
}
EGLDeviceEXT egl_device = NULL;
for (int i = 0; i < nb_devices; i++) {
const char *egl_device_name = egl->procs.eglQueryDeviceStringEXT(
devices[i], EGL_DRM_DEVICE_FILE_EXT);
if (egl_device_name == NULL) {
const char *device_exts_str = egl->procs.eglQueryDeviceStringEXT(devices[i], EGL_EXTENSIONS);
if (device_exts_str == NULL) {
wlr_log(WLR_ERROR, "eglQueryDeviceStringEXT(EGL_EXTENSIONS) failed");
continue;
}
if (device_has_name(device, egl_device_name)) {
const char *egl_device_name = NULL;
if (check_egl_ext(device_exts_str, "EGL_EXT_device_drm")) {
egl_device_name = egl->procs.eglQueryDeviceStringEXT(devices[i], EGL_DRM_DEVICE_FILE_EXT);
if (egl_device_name == NULL) {
wlr_log(WLR_ERROR, "eglQueryDeviceStringEXT(EGL_DRM_DEVICE_FILE_EXT) failed");
continue;
}
}
bool is_software = check_egl_ext(device_exts_str, "EGL_MESA_device_software");
bool found;
if (selected_drm_device != NULL) {
found = egl_device_name != NULL && device_has_name(selected_drm_device, egl_device_name);
} else {
found = is_software;
}
if (found) {
if (egl_device_name != NULL) {
wlr_log(WLR_DEBUG, "Using EGL device %s", egl_device_name);
}
egl_device = devices[i];
break;
}
}
drmFreeDevice(&device);
drmFreeDevice(&selected_drm_device);
free(devices);
return egl_device;
@ -556,7 +580,7 @@ struct wlr_egl *wlr_egl_create_with_drm_fd(int drm_fd) {
wlr_log(WLR_DEBUG, "EXT_platform_device not supported");
}
if (egl->exts.KHR_platform_gbm) {
if (egl->exts.KHR_platform_gbm && drm_fd >= 0) {
int gbm_fd = open_render_node(drm_fd);
if (gbm_fd < 0) {
wlr_log(WLR_ERROR, "Failed to open DRM render node");