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authorScott Anderson <ascent12@hotmail.com>2017-08-06 21:49:04 +1200
committerScott Anderson <ascent12@hotmail.com>2017-08-06 21:49:04 +1200
commit5f7042a1f22247b478b6225c3e1356c72cdd72ba (patch)
treed5876c7f115f655f550186f98e8e8db470d7ef78 /include/backend
parentd307c2f2c267a2226c4b279da334b1964272cf18 (diff)
Moved headers
Diffstat (limited to 'include/backend')
-rw-r--r--include/backend/drm-properties.h62
-rw-r--r--include/backend/drm-util.h37
-rw-r--r--include/backend/drm.h167
3 files changed, 266 insertions, 0 deletions
diff --git a/include/backend/drm-properties.h b/include/backend/drm-properties.h
new file mode 100644
index 00000000..287fc1e0
--- /dev/null
+++ b/include/backend/drm-properties.h
@@ -0,0 +1,62 @@
+#ifndef DRM_PROPERTIES_H
+#define DRM_PROPERTIES_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+/*
+ * These types contain the property ids for several DRM objects.
+ * See https://01.org/linuxgraphics/gfx-docs/drm/gpu/drm-kms.html#kms-properties
+ * for more details.
+ */
+
+union wlr_drm_connector_props {
+ struct {
+ uint32_t edid;
+ uint32_t dpms;
+
+ // atomic-modesetting only
+
+ uint32_t crtc_id;
+ };
+ uint32_t props[3];
+};
+
+union wlr_drm_crtc_props {
+ struct {
+ // Neither of these are guranteed to exist
+ uint32_t rotation;
+ uint32_t scaling_mode;
+ };
+ uint32_t props[2];
+};
+
+union wlr_drm_plane_props {
+ struct {
+ uint32_t type;
+ uint32_t rotation; // Not guranteed to exist
+
+ // atomic-modesetting only
+
+ uint32_t src_x;
+ uint32_t src_y;
+ uint32_t src_w;
+ uint32_t src_h;
+ uint32_t crtc_x;
+ uint32_t crtc_y;
+ uint32_t crtc_w;
+ uint32_t crtc_h;
+ uint32_t fb_id;
+ uint32_t crtc_id;
+ };
+ uint32_t props[12];
+};
+
+bool wlr_drm_get_connector_props(int fd, uint32_t id, union wlr_drm_connector_props *out);
+bool wlr_drm_get_crtc_props(int fd, uint32_t id, union wlr_drm_crtc_props *out);
+bool wlr_drm_get_plane_props(int fd, uint32_t id, union wlr_drm_plane_props *out);
+
+bool wlr_drm_get_prop(int fd, uint32_t obj, uint32_t prop, uint64_t *ret);
+void *wlr_drm_get_prop_blob(int fd, uint32_t obj, uint32_t prop, size_t *ret_len);
+
+#endif
diff --git a/include/backend/drm-util.h b/include/backend/drm-util.h
new file mode 100644
index 00000000..759bdb48
--- /dev/null
+++ b/include/backend/drm-util.h
@@ -0,0 +1,37 @@
+#ifndef WLR_DRM_UTIL_H
+#define WLR_DRM_UTIL_H
+
+#include <stdint.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+#include <wlr/types/wlr_output.h>
+
+// Calculates a more accurate refresh rate (mHz) than what mode itself provides
+int32_t calculate_refresh_rate(drmModeModeInfo *mode);
+// Populates the make/model/phys_{width,height} of output from the edid data
+void parse_edid(struct wlr_output *restrict output, size_t len, const uint8_t *data);
+// Returns the string representation of a DRM output type
+const char *conn_get_name(uint32_t type_id);
+
+// Part of match_obj
+enum {
+ UNMATCHED = (uint32_t)-1,
+ SKIP = (uint32_t)-2,
+};
+
+/*
+ * Tries to match some DRM objects with some other DRM resource.
+ * e.g. Match CRTCs with Encoders, CRTCs with Planes.
+ *
+ * objs contains a bit array which resources it can be matched with.
+ * e.g. Bit 0 set means can be matched with res[0]
+ *
+ * res contains an index of which objs it is matched with or UNMATCHED.
+ *
+ * This solution is left in out.
+ * Returns the total number of matched solutions.
+ */
+size_t match_obj(size_t num_objs, const uint32_t objs[static restrict num_objs],
+ size_t num_res, const uint32_t res[static restrict num_res],
+ uint32_t out[static restrict num_res]);
+#endif
diff --git a/include/backend/drm.h b/include/backend/drm.h
new file mode 100644
index 00000000..91346169
--- /dev/null
+++ b/include/backend/drm.h
@@ -0,0 +1,167 @@
+#ifndef DRM_BACKEND_H
+#define DRM_BACKEND_H
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <wayland-server.h>
+#include <xf86drmMode.h>
+#include <EGL/egl.h>
+#include <libudev.h>
+#include <gbm.h>
+
+#include <wlr/backend/session.h>
+#include <wlr/backend/drm.h>
+#include <wlr/util/list.h>
+
+#include <backend/egl.h>
+#include <backend/udev.h>
+#include "drm-properties.h"
+
+struct wlr_drm_plane {
+ uint32_t type;
+ uint32_t id;
+
+ uint32_t possible_crtcs;
+
+ uint32_t width, height;
+
+ struct gbm_surface *gbm;
+ EGLSurface egl;
+
+ struct gbm_bo *front;
+ struct gbm_bo *back;
+
+ // Only used by cursor
+ float matrix[16];
+ struct wlr_renderer *wlr_rend;
+ struct wlr_surface *wlr_surf;
+
+ union wlr_drm_plane_props props;
+};
+
+struct wlr_drm_crtc {
+ uint32_t id;
+ union {
+ struct {
+ struct wlr_drm_plane *overlay;
+ struct wlr_drm_plane *primary;
+ struct wlr_drm_plane *cursor;
+ };
+ struct wlr_drm_plane *planes[3];
+ };
+
+ union wlr_drm_crtc_props props;
+
+ struct wl_list connectors;
+};
+
+struct wlr_drm_connector {
+ struct wlr_output *base;
+ uint32_t id;
+ struct wlr_drm_crtc *crtc;
+
+ union wlr_drm_connector_props props;
+
+ struct wl_list link;
+};
+
+struct wlr_drm_renderer {
+ int fd;
+ struct gbm_device *gbm;
+ struct wlr_egl egl;
+};
+
+bool wlr_drm_renderer_init(struct wlr_drm_renderer *renderer, int fd);
+void wlr_drm_renderer_free(struct wlr_drm_renderer *renderer);
+
+struct wlr_backend_state {
+ struct wlr_backend *base;
+
+ int fd;
+ dev_t dev;
+
+ size_t num_crtcs;
+ struct wlr_drm_crtc *crtcs;
+ size_t num_planes;
+ struct wlr_drm_plane *planes;
+
+ union {
+ struct {
+ size_t num_overlay_planes;
+ size_t num_primary_planes;
+ size_t num_cursor_planes;
+ };
+ size_t num_type_planes[3];
+ };
+
+ union {
+ struct {
+ struct wlr_drm_plane *overlay_planes;
+ struct wlr_drm_plane *primary_planes;
+ struct wlr_drm_plane *cursor_planes;
+ };
+ struct wlr_drm_plane *type_planes[3];
+ };
+
+ struct wl_display *display;
+ struct wl_event_source *drm_event;
+
+ struct wl_listener session_signal;
+ struct wl_listener drm_invalidated;
+
+ uint32_t taken_crtcs;
+ list_t *outputs;
+
+ struct wlr_drm_renderer renderer;
+ struct wlr_session *session;
+ struct wlr_udev *udev;
+};
+
+enum wlr_drm_output_state {
+ WLR_DRM_OUTPUT_DISCONNECTED,
+ WLR_DRM_OUTPUT_NEEDS_MODESET,
+ WLR_DRM_OUTPUT_CONNECTED,
+};
+
+struct wlr_output_mode_state {
+ struct wlr_wl_output_mode *wlr_mode;
+ drmModeModeInfo mode;
+};
+
+struct wlr_output_state {
+ struct wlr_output *base;
+ enum wlr_drm_output_state state;
+ uint32_t connector;
+
+ struct wlr_drm_crtc *crtc;
+ uint32_t possible_crtc;
+
+ union wlr_drm_connector_props props;
+
+ uint32_t width;
+ uint32_t height;
+
+ drmModeCrtc *old_crtc;
+
+ struct wlr_drm_renderer *renderer;
+ struct gbm_bo *bo[2];
+ struct gbm_bo *cursor_bo[2];
+ int current_cursor;
+ uint32_t cursor_width, cursor_height;
+
+ bool pageflip_pending;
+};
+
+bool wlr_drm_check_features(struct wlr_backend_state *drm);
+bool wlr_drm_resources_init(struct wlr_backend_state *drm);
+void wlr_drm_resources_free(struct wlr_backend_state *drm);
+void wlr_drm_output_cleanup(struct wlr_output_state *output, bool restore);
+
+void wlr_drm_scan_connectors(struct wlr_backend_state *state);
+int wlr_drm_event(int fd, uint32_t mask, void *data);
+
+void wlr_drm_output_start_renderer(struct wlr_output_state *output);
+bool wlr_drm_crtc_set_cursor(struct wlr_backend_state *drm, struct wlr_drm_crtc *crtc);
+
+#endif