1 From 020508b35b2bf6c89d62961eb95e2f81d6381ab5 Mon Sep 17 00:00:00 2001
2 From: Veeresh Kadasani <external.vkadasani@jp.adit-jv.com>
3 Date: Mon, 29 Jul 2019 17:07:00 +0900
4 Subject: [PATCH 2/3] compositor-drm: introduce drm_get_dmafd_from_view
6 This API enables to get dmafd from weston_view
8 Signed-off-by: Veeresh Kadasani <external.vkadasani@jp.adit-jv.com>
10 libweston/compositor-drm.c | 57 ++++++++++++++++++++++++++++++++++++++++++++++
11 libweston/compositor-drm.h | 7 ++++++
12 2 files changed, 64 insertions(+)
14 diff --git a/libweston/compositor-drm.c b/libweston/compositor-drm.c
15 index 26a480c..2b99db5 100644
16 --- a/libweston/compositor-drm.c
17 +++ b/libweston/compositor-drm.c
18 @@ -5420,6 +5420,62 @@ drm_output_set_seat(struct weston_output *base,
22 +drm_get_dma_fd_from_view(struct weston_output *base,
23 + struct weston_view *ev)
25 + struct drm_backend *b = to_drm_backend(base->compositor);
26 + struct weston_buffer *buffer = ev->surface->buffer_ref.buffer;
28 + struct drm_fb *current;
29 + struct linux_dmabuf_buffer *dmabuf;
30 + bool is_opaque = drm_view_is_opaque(ev);
35 + weston_log("buffer is NULL\n");
39 + if(dmabuf = linux_dmabuf_buffer_get(buffer->resource)) {
40 + current = drm_fb_get_from_dmabuf(dmabuf, b, is_opaque);
43 + fprintf(stderr, "failed to get drm_fb from dmabuf\n");
47 + else if(ev->surface->buffer_ref.buffer->legacy_buffer) {
48 + bo = gbm_bo_import(b->gbm, GBM_BO_IMPORT_WL_BUFFER,
49 + buffer->resource, GBM_BO_USE_SCANOUT);
51 + weston_log("failed to get gbm_bo\n");
54 + current = drm_fb_get_from_bo(bo, b, is_opaque, BUFFER_CLIENT);
57 + weston_log("failed to get drm_fb from bo\n");
63 + weston_log("Buffer is not supported\n");
67 + ret = drmPrimeHandleToFD(b->drm.fd, current->handles[0],
71 + weston_log("failed to create prime fd for front buffer\n");
78 drm_output_init_gamma_size(struct drm_output *output)
80 struct drm_backend *backend = to_drm_backend(output->base.compositor);
81 @@ -6696,6 +6752,7 @@ static const struct weston_drm_output_api api = {
83 drm_output_set_gbm_format,
85 + drm_get_dma_fd_from_view,
88 static struct drm_backend *
89 diff --git a/libweston/compositor-drm.h b/libweston/compositor-drm.h
90 index 9c37c15..a82a2a9 100644
91 --- a/libweston/compositor-drm.h
92 +++ b/libweston/compositor-drm.h
93 @@ -78,6 +78,13 @@ struct weston_drm_output_api {
95 void (*set_seat)(struct weston_output *output,
98 + /** Get the dma fd from drm view.
100 + * The dma fd is got from weston_view.
101 + * Returns fd on success, -1 on failure.
103 + int (*get_dma_fd_from_view)(struct weston_output *output, struct weston_view *view);
106 static inline const struct weston_drm_output_api *