From 144189674edbf908d72467cd497a0250b3d80b8b Mon Sep 17 00:00:00 2001 From: Simon Zeni Date: Wed, 28 Apr 2021 10:09:33 -0400 Subject: backend: introduce backend_get_buffer_caps --- backend/backend.c | 9 +++++++++ backend/drm/backend.c | 6 ++++++ backend/headless/backend.c | 8 ++++++++ backend/wayland/backend.c | 8 ++++++++ backend/x11/backend.c | 8 ++++++++ include/backend/backend.h | 13 +++++++++++++ include/wlr/backend/interface.h | 1 + 7 files changed, 53 insertions(+) create mode 100644 include/backend/backend.h diff --git a/backend/backend.c b/backend/backend.c index b93b1e22..c7fa043d 100644 --- a/backend/backend.c +++ b/backend/backend.c @@ -16,6 +16,7 @@ #include #include #include +#include "backend/backend.h" #include "backend/multi.h" #if WLR_HAS_X11_BACKEND @@ -78,6 +79,14 @@ int wlr_backend_get_drm_fd(struct wlr_backend *backend) { return backend->impl->get_drm_fd(backend); } +uint32_t backend_get_buffer_caps(struct wlr_backend *backend) { + if (!backend->impl->get_buffer_caps) { + return 0; + } + + return backend->impl->get_buffer_caps(backend); +} + static size_t parse_outputs_env(const char *name) { const char *outputs_str = getenv(name); if (outputs_str == NULL) { diff --git a/backend/drm/backend.c b/backend/drm/backend.c index 3240b375..6520adc3 100644 --- a/backend/drm/backend.c +++ b/backend/drm/backend.c @@ -12,6 +12,7 @@ #include #include #include "backend/drm/drm.h" +#include "types/wlr_buffer.h" #include "util/signal.h" struct wlr_drm_backend *get_drm_backend_from_backend( @@ -89,12 +90,17 @@ static int backend_get_drm_fd(struct wlr_backend *backend) { } } +static uint32_t backend_get_buffer_caps(struct wlr_backend *backend) { + return WLR_BUFFER_CAP_DMABUF; +} + static const struct wlr_backend_impl backend_impl = { .start = backend_start, .destroy = backend_destroy, .get_renderer = backend_get_renderer, .get_presentation_clock = backend_get_presentation_clock, .get_drm_fd = backend_get_drm_fd, + .get_buffer_caps = backend_get_buffer_caps, }; bool wlr_backend_is_drm(struct wlr_backend *b) { diff --git a/backend/headless/backend.c b/backend/headless/backend.c index 1ca1c183..7f1e6aa4 100644 --- a/backend/headless/backend.c +++ b/backend/headless/backend.c @@ -13,6 +13,7 @@ #include "render/drm_format_set.h" #include "render/gbm_allocator.h" #include "render/wlr_renderer.h" +#include "types/wlr_buffer.h" #include "util/signal.h" struct wlr_headless_backend *headless_backend_from_backend( @@ -92,11 +93,18 @@ static int backend_get_drm_fd(struct wlr_backend *wlr_backend) { return backend->drm_fd; } +static uint32_t backend_get_buffer_caps(struct wlr_backend *wlr_backend) { + return WLR_BUFFER_CAP_DATA_PTR + | WLR_BUFFER_CAP_DMABUF + | WLR_BUFFER_CAP_SHM; +} + static const struct wlr_backend_impl backend_impl = { .start = backend_start, .destroy = backend_destroy, .get_renderer = backend_get_renderer, .get_drm_fd = backend_get_drm_fd, + .get_buffer_caps = backend_get_buffer_caps, }; static void handle_display_destroy(struct wl_listener *listener, void *data) { diff --git a/backend/wayland/backend.c b/backend/wayland/backend.c index 60ac76cb..f0cb2e42 100644 --- a/backend/wayland/backend.c +++ b/backend/wayland/backend.c @@ -23,6 +23,7 @@ #include "render/pixel_format.h" #include "render/shm_allocator.h" #include "render/wlr_renderer.h" +#include "types/wlr_buffer.h" #include "util/signal.h" #include "drm-client-protocol.h" @@ -364,11 +365,18 @@ static int backend_get_drm_fd(struct wlr_backend *backend) { return wl->drm_fd; } +static uint32_t backend_get_buffer_caps(struct wlr_backend *backend) { + struct wlr_wl_backend *wl = get_wl_backend_from_backend(backend); + return (wl->zwp_linux_dmabuf_v1 ? WLR_BUFFER_CAP_DMABUF : 0) + | (wl->shm ? WLR_BUFFER_CAP_SHM : 0); +} + static const struct wlr_backend_impl backend_impl = { .start = backend_start, .destroy = backend_destroy, .get_renderer = backend_get_renderer, .get_drm_fd = backend_get_drm_fd, + .get_buffer_caps = backend_get_buffer_caps, }; bool wlr_backend_is_wl(struct wlr_backend *b) { diff --git a/backend/x11/backend.c b/backend/x11/backend.c index 743f19ff..9ffdfb2d 100644 --- a/backend/x11/backend.c +++ b/backend/x11/backend.c @@ -35,6 +35,7 @@ #include "render/gbm_allocator.h" #include "render/shm_allocator.h" #include "render/wlr_renderer.h" +#include "types/wlr_buffer.h" #include "util/signal.h" // See dri2_format_for_depth in mesa @@ -223,11 +224,18 @@ static int backend_get_drm_fd(struct wlr_backend *backend) { return x11->drm_fd; } +static uint32_t backend_get_buffer_caps(struct wlr_backend *backend) { + struct wlr_x11_backend *x11 = get_x11_backend_from_backend(backend); + return (x11->have_dri3 ? WLR_BUFFER_CAP_DMABUF : 0) + | (x11->have_shm ? WLR_BUFFER_CAP_SHM : 0); +} + static const struct wlr_backend_impl backend_impl = { .start = backend_start, .destroy = backend_destroy, .get_renderer = backend_get_renderer, .get_drm_fd = backend_get_drm_fd, + .get_buffer_caps = backend_get_buffer_caps, }; bool wlr_backend_is_x11(struct wlr_backend *backend) { diff --git a/include/backend/backend.h b/include/backend/backend.h new file mode 100644 index 00000000..8c7440c3 --- /dev/null +++ b/include/backend/backend.h @@ -0,0 +1,13 @@ +#ifndef BACKEND_WLR_BACKEND_H +#define BACKEND_WLR_BACKEND_H + +#include + +/** + * Get the supported buffer capabilities. + * + * This functions returns a bitfield of supported wlr_buffer_cap. + */ +uint32_t backend_get_buffer_caps(struct wlr_backend *backend); + +#endif diff --git a/include/wlr/backend/interface.h b/include/wlr/backend/interface.h index 3426bb45..feed8d2d 100644 --- a/include/wlr/backend/interface.h +++ b/include/wlr/backend/interface.h @@ -20,6 +20,7 @@ struct wlr_backend_impl { struct wlr_session *(*get_session)(struct wlr_backend *backend); clockid_t (*get_presentation_clock)(struct wlr_backend *backend); int (*get_drm_fd)(struct wlr_backend *backend); + uint32_t (*get_buffer_caps)(struct wlr_backend *backend); }; /** -- cgit v1.2.3