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Merge pull request #992 from emersion/screencontent

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Implement wlr_export_dmabuf_unstable_v1 protocol
This commit is contained in:
Drew DeVault 2018-06-22 05:37:07 -07:00 • committed by GitHub
commit e459fe0ec7
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GPG key ID: 4AEE18F83AFDEB23
27 changed files with 1396 additions and 29 deletions
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20
backend/drm/drm.c
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@ -254,6 +254,25 @@ static uint32_t drm_connector_get_gamma_size(struct wlr_output *output) {
return 0;
}
static bool drm_connector_export_dmabuf(struct wlr_output *output,
struct wlr_dmabuf_attributes *attribs) {
struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
struct wlr_drm_backend *drm = (struct wlr_drm_backend *)output->backend;
if (!drm->session->active) {
return false;
}
struct wlr_drm_crtc *crtc = conn->crtc;
if (!crtc) {
return false;
}
struct wlr_drm_plane *plane = crtc->primary;
struct wlr_drm_surface *surf = &plane->surf;
return export_drm_bo(surf->back, attribs);
}
static void drm_connector_start_renderer(struct wlr_drm_connector *conn) {
if (conn->state != WLR_DRM_CONN_CONNECTED) {
return;
@ -742,6 +761,7 @@ static const struct wlr_output_impl output_impl = {
.swap_buffers = drm_connector_swap_buffers,
.set_gamma = drm_connector_set_gamma,
.get_gamma_size = drm_connector_get_gamma_size,
.export_dmabuf = drm_connector_export_dmabuf,
};
bool wlr_output_is_drm(struct wlr_output *output) {

43
backend/drm/renderer.c
View file

@ -160,6 +160,34 @@ void post_drm_surface(struct wlr_drm_surface *surf) {
}
}
bool export_drm_bo(struct gbm_bo *bo, struct wlr_dmabuf_attributes *attribs) {
memset(attribs, 0, sizeof(struct wlr_dmabuf_attributes));
attribs->n_planes = gbm_bo_get_plane_count(bo);
if (attribs->n_planes > WLR_DMABUF_MAX_PLANES) {
return false;
}
attribs->width = gbm_bo_get_width(bo);
attribs->height = gbm_bo_get_height(bo);
attribs->format = gbm_bo_get_format(bo);
attribs->modifier = gbm_bo_get_modifier(bo);
for (int i = 0; i < attribs->n_planes; ++i) {
attribs->offset[i] = gbm_bo_get_offset(bo, i);
attribs->stride[i] = gbm_bo_get_stride_for_plane(bo, i);
attribs->fd[i] = gbm_bo_get_fd(bo);
if (attribs->fd[i] < 0) {
for (int j = 0; j < i; ++j) {
close(attribs->fd[j]);
}
return false;
}
}
return true;
}
struct tex {
struct wlr_egl *egl;
EGLImageKHR img;
@ -186,16 +214,11 @@ static struct wlr_texture *get_tex_for_bo(struct wlr_drm_renderer *renderer,
return NULL;
}
struct wlr_dmabuf_attributes attribs = {
.n_planes = 1,
.width = gbm_bo_get_width(bo),
.height = gbm_bo_get_height(bo),
.format = gbm_bo_get_format(bo),
.modifier = DRM_FORMAT_MOD_LINEAR,
};
attribs.offset[0] = 0;
attribs.stride[0] = gbm_bo_get_stride_for_plane(bo, 0);
attribs.fd[0] = gbm_bo_get_fd(bo);
struct wlr_dmabuf_attributes attribs;
if (!export_drm_bo(bo, &attribs)) {
free(tex);
return NULL;
}
tex->tex = wlr_texture_from_dmabuf(renderer->wlr_rend, &attribs);
if (tex->tex == NULL) {