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backend/drm: add basic support for direct scan-out

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emersion 2019-03-29 21:27:12 +02:00 • committed by Drew DeVault
parent 3dec88e455
commit 96d6fde5dc
7 changed files with 105 additions and 7 deletions
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24
backend/drm/renderer.c
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@ -163,6 +163,30 @@ void post_drm_surface(struct wlr_drm_surface *surf) {
}
}
struct gbm_bo *import_gbm_bo(struct wlr_drm_renderer *renderer,
struct wlr_dmabuf_attributes *attribs) {
struct gbm_import_fd_modifier_data data = {
.width = attribs->width,
.height = attribs->height,
.format = attribs->format,
.num_fds = attribs->n_planes,
.modifier = attribs->modifier,
};
if ((size_t)attribs->n_planes > sizeof(data.fds) / sizeof(data.fds[0])) {
return NULL;
}
for (size_t i = 0; i < (size_t)attribs->n_planes; ++i) {
data.fds[i] = attribs->fd[i];
data.strides[i] = attribs->stride[i];
data.offsets[i] = attribs->offset[i];
}
return gbm_bo_import(renderer->gbm, GBM_BO_IMPORT_FD_MODIFIER,
&data, GBM_BO_USE_SCANOUT);
}
bool export_drm_bo(struct gbm_bo *bo, struct wlr_dmabuf_attributes *attribs) {
memset(attribs, 0, sizeof(struct wlr_dmabuf_attributes));