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backend/drm: introduce struct wlr_drm_connector_atomic_state

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This centralizes logic common for both the atomic and libliftoff
backends. Additionally, a struct will make it easier to implement
multi-connector commits (since it can be stored in an array).
This commit is contained in:
Simon Ser 2024-02-14 15:41:29 +01:00
parent a05a3d7849
commit b19f537ed0
6 changed files with 112 additions and 138 deletions
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139
backend/drm/atomic.c
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@ -102,7 +102,7 @@ static void atomic_add(struct atomic *atom, uint32_t id, uint32_t prop, uint64_t
}
}
bool create_mode_blob(struct wlr_drm_connector *conn,
static bool create_mode_blob(struct wlr_drm_connector *conn,
const struct wlr_drm_connector_state *state, uint32_t *blob_id) {
if (!state->active) {
*blob_id = 0;
@ -118,7 +118,7 @@ bool create_mode_blob(struct wlr_drm_connector *conn,
return true;
}
bool create_gamma_lut_blob(struct wlr_drm_backend *drm,
static bool create_gamma_lut_blob(struct wlr_drm_backend *drm,
size_t size, const uint16_t *lut, uint32_t *blob_id) {
if (size == 0) {
*blob_id = 0;
@ -234,51 +234,12 @@ static void rollback_blob(struct wlr_drm_backend *drm,
destroy_blob(drm, next);
}
static void plane_disable(struct atomic *atom, struct wlr_drm_plane *plane) {
uint32_t id = plane->id;
const union wlr_drm_plane_props *props = &plane->props;
atomic_add(atom, id, props->fb_id, 0);
atomic_add(atom, id, props->crtc_id, 0);
}
static void set_plane_props(struct atomic *atom, struct wlr_drm_backend *drm,
struct wlr_drm_plane *plane, struct wlr_drm_fb *fb, uint32_t crtc_id,
int32_t x, int32_t y) {
uint32_t id = plane->id;
const union wlr_drm_plane_props *props = &plane->props;
if (fb == NULL) {
wlr_log(WLR_ERROR, "Failed to acquire FB for plane %"PRIu32, plane->id);
atom->failed = true;
return;
}
uint32_t width = fb->wlr_buf->width;
uint32_t height = fb->wlr_buf->height;
// The src_* properties are in 16.16 fixed point
atomic_add(atom, id, props->src_x, 0);
atomic_add(atom, id, props->src_y, 0);
atomic_add(atom, id, props->src_w, (uint64_t)width << 16);
atomic_add(atom, id, props->src_h, (uint64_t)height << 16);
atomic_add(atom, id, props->crtc_w, width);
atomic_add(atom, id, props->crtc_h, height);
atomic_add(atom, id, props->fb_id, fb->id);
atomic_add(atom, id, props->crtc_id, crtc_id);
atomic_add(atom, id, props->crtc_x, (uint64_t)x);
atomic_add(atom, id, props->crtc_y, (uint64_t)y);
}
static bool atomic_crtc_commit(struct wlr_drm_connector *conn,
const struct wlr_drm_connector_state *state,
struct wlr_drm_page_flip *page_flip, uint32_t flags, bool test_only) {
bool drm_atomic_connector_prepare(struct wlr_drm_connector_state *state, bool modeset) {
struct wlr_drm_connector *conn = state->connector;
struct wlr_drm_backend *drm = conn->backend;
struct wlr_output *output = &conn->output;
struct wlr_drm_crtc *crtc = conn->crtc;
bool modeset = state->modeset;
bool active = state->active;
uint32_t mode_id = crtc->mode_id;
if (modeset) {
if (!create_mode_blob(conn, state, &mode_id)) {
@ -322,6 +283,83 @@ static bool atomic_crtc_commit(struct wlr_drm_connector *conn,
vrr_enabled = state->base->adaptive_sync_enabled;
}
state->mode_id = mode_id;
state->gamma_lut = gamma_lut;
state->fb_damage_clips = fb_damage_clips;
state->vrr_enabled = vrr_enabled;
return true;
}
void drm_atomic_connector_apply_commit(struct wlr_drm_connector_state *state) {
struct wlr_drm_connector *conn = state->connector;
struct wlr_drm_crtc *crtc = conn->crtc;
struct wlr_drm_backend *drm = conn->backend;
commit_blob(drm, &crtc->mode_id, state->mode_id);
commit_blob(drm, &crtc->gamma_lut, state->gamma_lut);
destroy_blob(drm, state->fb_damage_clips);
}
void drm_atomic_connector_rollback_commit(struct wlr_drm_connector_state *state) {
struct wlr_drm_connector *conn = state->connector;
struct wlr_drm_crtc *crtc = conn->crtc;
struct wlr_drm_backend *drm = conn->backend;
rollback_blob(drm, &crtc->mode_id, state->mode_id);
rollback_blob(drm, &crtc->gamma_lut, state->gamma_lut);
destroy_blob(drm, state->fb_damage_clips);
}
static void plane_disable(struct atomic *atom, struct wlr_drm_plane *plane) {
uint32_t id = plane->id;
const union wlr_drm_plane_props *props = &plane->props;
atomic_add(atom, id, props->fb_id, 0);
atomic_add(atom, id, props->crtc_id, 0);
}
static void set_plane_props(struct atomic *atom, struct wlr_drm_backend *drm,
struct wlr_drm_plane *plane, struct wlr_drm_fb *fb, uint32_t crtc_id,
int32_t x, int32_t y) {
uint32_t id = plane->id;
const union wlr_drm_plane_props *props = &plane->props;
if (fb == NULL) {
wlr_log(WLR_ERROR, "Failed to acquire FB for plane %"PRIu32, plane->id);
atom->failed = true;
return;
}
uint32_t width = fb->wlr_buf->width;
uint32_t height = fb->wlr_buf->height;
// The src_* properties are in 16.16 fixed point
atomic_add(atom, id, props->src_x, 0);
atomic_add(atom, id, props->src_y, 0);
atomic_add(atom, id, props->src_w, (uint64_t)width << 16);
atomic_add(atom, id, props->src_h, (uint64_t)height << 16);
atomic_add(atom, id, props->crtc_w, width);
atomic_add(atom, id, props->crtc_h, height);
atomic_add(atom, id, props->fb_id, fb->id);
atomic_add(atom, id, props->crtc_id, crtc_id);
atomic_add(atom, id, props->crtc_x, (uint64_t)x);
atomic_add(atom, id, props->crtc_y, (uint64_t)y);
}
static bool atomic_crtc_commit(struct wlr_drm_connector *conn,
struct wlr_drm_connector_state *state,
struct wlr_drm_page_flip *page_flip, uint32_t flags, bool test_only) {
struct wlr_drm_backend *drm = conn->backend;
struct wlr_drm_crtc *crtc = conn->crtc;
bool modeset = state->modeset;
bool active = state->active;
if (!drm_atomic_connector_prepare(state, modeset)) {
return false;
}
if (test_only) {
flags |= DRM_MODE_ATOMIC_TEST_ONLY;
}
@ -346,20 +384,20 @@ static bool atomic_crtc_commit(struct wlr_drm_connector *conn,
if (modeset && active && conn->props.max_bpc != 0 && conn->max_bpc_bounds[1] != 0) {
atomic_add(&atom, conn->id, conn->props.max_bpc, pick_max_bpc(conn, state->primary_fb));
}
atomic_add(&atom, crtc->id, crtc->props.mode_id, mode_id);
atomic_add(&atom, crtc->id, crtc->props.mode_id, state->mode_id);
atomic_add(&atom, crtc->id, crtc->props.active, active);
if (active) {
if (crtc->props.gamma_lut != 0) {
atomic_add(&atom, crtc->id, crtc->props.gamma_lut, gamma_lut);
atomic_add(&atom, crtc->id, crtc->props.gamma_lut, state->gamma_lut);
}
if (crtc->props.vrr_enabled != 0) {
atomic_add(&atom, crtc->id, crtc->props.vrr_enabled, vrr_enabled);
atomic_add(&atom, crtc->id, crtc->props.vrr_enabled, state->vrr_enabled);
}
set_plane_props(&atom, drm, crtc->primary, state->primary_fb, crtc->id,
0, 0);
if (crtc->primary->props.fb_damage_clips != 0) {
atomic_add(&atom, crtc->primary->id,
crtc->primary->props.fb_damage_clips, fb_damage_clips);
crtc->primary->props.fb_damage_clips, state->fb_damage_clips);
}
if (crtc->cursor) {
if (drm_connector_is_cursor_visible(conn)) {
@ -380,13 +418,10 @@ static bool atomic_crtc_commit(struct wlr_drm_connector *conn,
atomic_finish(&atom);
if (ok && !test_only) {
commit_blob(drm, &crtc->mode_id, mode_id);
commit_blob(drm, &crtc->gamma_lut, gamma_lut);
drm_atomic_connector_apply_commit(state);
} else {
rollback_blob(drm, &crtc->mode_id, mode_id);
rollback_blob(drm, &crtc->gamma_lut, gamma_lut);
drm_atomic_connector_rollback_commit(state);
}
destroy_blob(drm, fb_damage_clips);
return ok;
}