diff options
| -rw-r--r-- | backend/drm/util.c | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/backend/drm/util.c b/backend/drm/util.c index b7ee50da..c0e701b0 100644 --- a/backend/drm/util.c +++ b/backend/drm/util.c @@ -170,6 +170,35 @@ const char *conn_get_name(uint32_t type_id) { } } +static uint32_t get_fb_for_bo_legacy(struct gbm_bo *bo) { + struct gbm_device *gbm = gbm_bo_get_device(bo); + + /* We only support this as a fallback of last resort for ARGB8888 visuals, + * like xf86-video-modesetting does. This is necessary on BE machines. */ + if (gbm_bo_get_format(bo) != GBM_FORMAT_ARGB8888 || + gbm_bo_get_plane_count(bo) != 1) { + wlr_log(WLR_DEBUG, + "Invalid visual %x (%d planes) requested for legacy DRM framebuffer", + gbm_bo_get_format(bo), gbm_bo_get_plane_count(bo)); + return 0; + } + + int fd = gbm_device_get_fd(gbm); + uint32_t width = gbm_bo_get_width(bo); + uint32_t height = gbm_bo_get_height(bo); + uint32_t depth = 32; + uint32_t bpp = gbm_bo_get_bpp(bo); + uint32_t pitch = gbm_bo_get_stride(bo); + uint32_t handle = gbm_bo_get_handle(bo).u32; + + uint32_t id = 0; + if (drmModeAddFB(fd, width, height, depth, bpp, pitch, handle, &id)) { + wlr_log_errno(WLR_ERROR, "Unable to add DRM framebuffer"); + } + + return id; +} + uint32_t get_fb_for_bo(struct gbm_bo *bo, bool with_modifiers) { struct gbm_device *gbm = gbm_bo_get_device(bo); @@ -199,7 +228,12 @@ uint32_t get_fb_for_bo(struct gbm_bo *bo, bool with_modifiers) { } else { if (drmModeAddFB2(fd, width, height, format, handles, strides, offsets, &id, 0)) { - wlr_log_errno(WLR_ERROR, "Unable to add DRM framebuffer"); + wlr_log_errno(WLR_DEBUG, + "Unable to add DRM framebuffer, trying legacy method"); + id = get_fb_for_bo_legacy(bo); + if (id == 0) { + wlr_log(WLR_ERROR, "Unable to add DRM framebuffer"); + } } } |