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backend/drm: move atomic cursor code into pageflip code

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It makes sense to construct as much atomic state as possible in the same
place, so it doesn't get lost if we "reset" it.
This commit is contained in:
Scott Anderson 2020-02-12 21:25:40 +13:00 committed by Simon Ser
parent be90062c51
commit 52281cb8ba
4 changed files with 66 additions and 65 deletions
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101
backend/drm/atomic.c
View file

@ -69,10 +69,27 @@ static void atomic_add(struct atomic *atom, uint32_t id, uint32_t prop, uint64_t
}
}
static void set_plane_props(struct atomic *atom, struct wlr_drm_plane *plane,
uint32_t crtc_id, uint32_t fb_id, bool set_crtc_xy) {
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, uint32_t crtc_id, int32_t x, int32_t y) {
uint32_t id = plane->id;
const union wlr_drm_plane_props *props = &plane->props;
struct wlr_drm_fb *fb = plane_get_next_fb(plane);
struct gbm_bo *bo = drm_fb_acquire(fb, drm, &plane->mgpu_surf);
if (!bo) {
goto error;
}
uint32_t fb_id = get_fb_for_bo(bo, drm->addfb2_modifiers);
if (!fb_id) {
goto error;
}
// The src_* properties are in 16.16 fixed point
atomic_add(atom, id, props->src_x, 0);
@ -83,16 +100,19 @@ static void set_plane_props(struct atomic *atom, struct wlr_drm_plane *plane,
atomic_add(atom, id, props->crtc_h, plane->surf.height);
atomic_add(atom, id, props->fb_id, fb_id);
atomic_add(atom, id, props->crtc_id, crtc_id);
if (set_crtc_xy) {
atomic_add(atom, id, props->crtc_x, 0);
atomic_add(atom, id, props->crtc_y, 0);
}
atomic_add(atom, id, props->crtc_x, (uint64_t)x);
atomic_add(atom, id, props->crtc_y, (uint64_t)y);
return;
error:
atom->failed = true;
}
static bool atomic_crtc_pageflip(struct wlr_drm_backend *drm,
struct wlr_drm_connector *conn,
struct wlr_drm_crtc *crtc,
uint32_t fb_id, drmModeModeInfo *mode) {
struct wlr_drm_connector *conn, drmModeModeInfo *mode) {
struct wlr_drm_crtc *crtc = conn->crtc;
if (mode != NULL) {
if (crtc->mode_id != 0) {
drmModeDestroyPropertyBlob(drm->fd, crtc->mode_id);
@ -121,14 +141,29 @@ static bool atomic_crtc_pageflip(struct wlr_drm_backend *drm,
}
atomic_add(&atom, crtc->id, crtc->props.mode_id, crtc->mode_id);
atomic_add(&atom, crtc->id, crtc->props.active, 1);
set_plane_props(&atom, crtc->primary, crtc->id, fb_id, true);
set_plane_props(&atom, drm, crtc->primary, crtc->id, 0, 0);
if (crtc->cursor) {
if (crtc->cursor->cursor_enabled) {
set_plane_props(&atom, drm, crtc->cursor, crtc->id,
conn->cursor_x, conn->cursor_y);
} else {
plane_disable(&atom, crtc->cursor);
}
}
if (!atomic_end(drm->fd, mode ? DRM_MODE_ATOMIC_ALLOW_MODESET : 0, &atom)) {
drmModeAtomicSetCursor(atom.req, 0);
return false;
}
return atomic_commit(drm->fd, &atom, conn, flags, mode);
if (!atomic_commit(drm->fd, &atom, conn, flags, mode)) {
return false;
}
if (crtc->cursor) {
drm_fb_move(&crtc->cursor->queued_fb, &crtc->cursor->pending_fb);
}
return true;
}
static bool atomic_conn_enable(struct wlr_drm_backend *drm,
@ -154,50 +189,14 @@ static bool atomic_conn_enable(struct wlr_drm_backend *drm,
static bool atomic_crtc_set_cursor(struct wlr_drm_backend *drm,
struct wlr_drm_crtc *crtc, struct gbm_bo *bo) {
if (!crtc || !crtc->cursor) {
return true;
}
struct wlr_drm_plane *plane = crtc->cursor;
// We can't use atomic operations on fake planes
if (plane->id == 0) {
return legacy_crtc_set_cursor(drm, crtc, bo);
}
struct atomic atom;
atomic_begin(crtc, &atom);
if (bo) {
uint32_t fb_id =
get_fb_for_bo(bo, drm->addfb2_modifiers);
set_plane_props(&atom, plane, crtc->id, fb_id, false);
} else {
atomic_add(&atom, plane->id, plane->props.fb_id, 0);
atomic_add(&atom, plane->id, plane->props.crtc_id, 0);
}
return atomic_end(drm->fd, &atom);
/* Cursor updates happen when we pageflip */
return true;
}
static bool atomic_crtc_move_cursor(struct wlr_drm_backend *drm,
struct wlr_drm_crtc *crtc, int x, int y) {
if (!crtc || !crtc->cursor) {
return true;
}
struct wlr_drm_plane *plane = crtc->cursor;
// We can't use atomic operations on fake planes
if (plane->id == 0) {
return legacy_crtc_move_cursor(drm, crtc, x, y);
}
struct atomic atom;
atomic_begin(crtc, &atom);
atomic_add(&atom, plane->id, plane->props.crtc_x, x);
atomic_add(&atom, plane->id, plane->props.crtc_y, y);
return atomic_end(drm->fd, &atom);
/* Cursor updates happen when we pageflip */
return true;
}
static bool atomic_crtc_set_gamma(struct wlr_drm_backend *drm,

11
backend/drm/drm.c
View file

@ -338,9 +338,6 @@ static bool drm_crtc_page_flip(struct wlr_drm_connector *conn,
struct wlr_drm_mode *mode) {
struct wlr_drm_backend *drm = get_drm_backend_from_backend(conn->output.backend);
struct wlr_drm_crtc *crtc = conn->crtc;
struct wlr_drm_plane *plane = crtc->primary;
struct gbm_bo *bo;
uint32_t fb_id;
drmModeModeInfo *drm_mode = mode ? &mode->drm_mode : NULL;
if (conn->pageflip_pending) {
@ -348,13 +345,7 @@ static bool drm_crtc_page_flip(struct wlr_drm_connector *conn,
return false;
}
bo = drm_fb_acquire(&plane->queued_fb, drm, &plane->mgpu_surf);
if (!bo) {
return false;
}
fb_id = get_fb_for_bo(bo, drm->addfb2_modifiers);
if (!drm->iface->crtc_pageflip(drm, conn, crtc, fb_id, drm_mode)) {
if (!drm->iface->crtc_pageflip(drm, conn, drm_mode)) {
return false;
}

16
backend/drm/legacy.c
View file

@ -7,8 +7,19 @@
#include "backend/drm/util.h"
static bool legacy_crtc_pageflip(struct wlr_drm_backend *drm,
struct wlr_drm_connector *conn, struct wlr_drm_crtc *crtc,
uint32_t fb_id, drmModeModeInfo *mode) {
struct wlr_drm_connector *conn, drmModeModeInfo *mode) {
struct wlr_drm_crtc *crtc = conn->crtc;
struct wlr_drm_fb *fb = plane_get_next_fb(crtc->primary);
struct gbm_bo *bo = drm_fb_acquire(fb, drm, &crtc->primary->mgpu_surf);
if (!bo) {
return false;
}
uint32_t fb_id = get_fb_for_bo(bo, drm->addfb2_modifiers);
if (!fb_id) {
return false;
}
if (mode) {
if (drmModeSetCrtc(drm->fd, crtc->id, fb_id, 0, 0,
&conn->id, 1, mode)) {
@ -60,6 +71,7 @@ bool legacy_crtc_set_cursor(struct wlr_drm_backend *drm,
return false;
}
drm_fb_move(&crtc->cursor->queued_fb, &crtc->cursor->pending_fb);
return true;
}

3
include/backend/drm/iface.h
View file

@ -18,8 +18,7 @@ struct wlr_drm_interface {
struct wlr_drm_connector *conn, bool enable);
// Pageflip on crtc. If mode is non-NULL perform a full modeset using it.
bool (*crtc_pageflip)(struct wlr_drm_backend *drm,
struct wlr_drm_connector *conn, struct wlr_drm_crtc *crtc,
uint32_t fb_id, drmModeModeInfo *mode);
struct wlr_drm_connector *conn, drmModeModeInfo *mode);
// Enable the cursor buffer on crtc. Set bo to NULL to disable
bool (*crtc_set_cursor)(struct wlr_drm_backend *drm,
struct wlr_drm_crtc *crtc, struct gbm_bo *bo);