diff options
| -rw-r--r-- | include/wlr/types/wlr_buffer.h | 19 | ||||
| -rw-r--r-- | types/wlr_buffer.c | 8 |
2 files changed, 27 insertions, 0 deletions
diff --git a/include/wlr/types/wlr_buffer.h b/include/wlr/types/wlr_buffer.h index 59996fce..ca94e93c 100644 --- a/include/wlr/types/wlr_buffer.h +++ b/include/wlr/types/wlr_buffer.h @@ -15,12 +15,21 @@ struct wlr_buffer; +struct wlr_shm_attributes { + int fd; + uint32_t format; + int width, height, stride; + off_t offset; +}; + struct wlr_buffer_impl { void (*destroy)(struct wlr_buffer *buffer); bool (*get_dmabuf)(struct wlr_buffer *buffer, struct wlr_dmabuf_attributes *attribs); bool (*get_data_ptr)(struct wlr_buffer *buffer, void **data, size_t *stride); + bool (*get_shm)(struct wlr_buffer *buffer, + struct wlr_shm_attributes *attribs); }; /** @@ -78,6 +87,16 @@ void wlr_buffer_unlock(struct wlr_buffer *buffer); */ bool wlr_buffer_get_dmabuf(struct wlr_buffer *buffer, struct wlr_dmabuf_attributes *attribs); +/** + * Read shared memory attributes of the buffer. If this buffer isn't shared + * memory, returns false. + * + * The returned shared memory attributes are valid for the lifetime of the + * wlr_buffer. The caller isn't responsible for cleaning up the shared memory + * attributes. + */ +bool wlr_buffer_get_shm(struct wlr_buffer *buffer, + struct wlr_shm_attributes *attribs); /** * A client buffer. diff --git a/types/wlr_buffer.c b/types/wlr_buffer.c index cc20af59..73d770d0 100644 --- a/types/wlr_buffer.c +++ b/types/wlr_buffer.c @@ -74,6 +74,14 @@ bool buffer_get_data_ptr(struct wlr_buffer *buffer, void **data, return buffer->impl->get_data_ptr(buffer, data, size); } +bool wlr_buffer_get_shm(struct wlr_buffer *buffer, + struct wlr_shm_attributes *attribs) { + if (!buffer->impl->get_shm) { + return false; + } + return buffer->impl->get_shm(buffer, attribs); +} + bool wlr_resource_is_buffer(struct wl_resource *resource) { return strcmp(wl_resource_get_class(resource), wl_buffer_interface.name) == 0; } |