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-rw-r--r--backend/drm/drm.c170
-rw-r--r--backend/drm/drm.h1
2 files changed, 109 insertions, 62 deletions
diff --git a/backend/drm/drm.c b/backend/drm/drm.c
index 8d52504e..1cc52d35 100644
--- a/backend/drm/drm.c
+++ b/backend/drm/drm.c
@@ -173,6 +173,56 @@ void wlr_drm_renderer_free(struct wlr_drm_renderer *renderer) {
gbm_device_destroy(renderer->gbm);
}
+static bool wlr_drm_plane_renderer_init(struct wlr_drm_renderer *renderer,
+ struct wlr_drm_plane *plane, uint32_t width, uint32_t height) {
+ if (plane->width == width && plane->height == height) {
+ return true;
+ }
+
+ plane->width = width;
+ plane->height = height;
+
+ plane->gbm = gbm_surface_create(renderer->gbm, width, height,
+ GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
+ if (!plane->gbm) {
+ wlr_log_errno(L_ERROR, "Failed to create GBM surface for plane");
+ return false;
+ }
+
+ plane->egl = wlr_egl_create_surface(&renderer->egl, plane->gbm);
+ if (plane->egl == EGL_NO_SURFACE) {
+ wlr_log(L_ERROR, "Failed to create EGL surface for plane");
+ return false;
+ }
+
+ return true;
+}
+
+static void wlr_drm_plane_renderer_free(struct wlr_drm_renderer *renderer,
+ struct wlr_drm_plane *plane) {
+ if (!renderer || !plane)
+ return;
+
+ wlr_log(L_DEBUG, "%s called", __func__);
+
+ if (plane->front)
+ gbm_surface_release_buffer(plane->gbm, plane->front);
+ if (plane->back)
+ gbm_surface_release_buffer(plane->gbm, plane->back);
+
+ if (plane->egl)
+ eglDestroySurface(renderer->egl.display, plane->egl);
+ if (plane->gbm)
+ gbm_surface_destroy(plane->gbm);
+
+ plane->width = 0;
+ plane->height = 0;
+ plane->egl = EGL_NO_SURFACE;
+ plane->gbm = NULL;
+ plane->front = NULL;
+ plane->back = NULL;
+}
+
static void free_fb(struct gbm_bo *bo, void *data) {
uint32_t id = (uintptr_t)data;
@@ -258,40 +308,6 @@ void wlr_drm_output_start_renderer(struct wlr_output_state *output) {
output->pageflip_pending = true;
}
-static bool plane_init_renderer(struct wlr_drm_renderer *renderer,
- struct wlr_drm_plane *plane, struct wlr_output_mode *mode) {
- plane->width = mode->width;
- plane->height = mode->height;
-
- plane->gbm = gbm_surface_create(renderer->gbm, mode->width,
- mode->height, GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
- if (!plane->gbm) {
- wlr_log_errno(L_ERROR, "Failed to create GBM surface for plane");
- return false;
- }
-
- plane->egl = wlr_egl_create_surface(&renderer->egl, plane->gbm);
- if (plane->egl == EGL_NO_SURFACE) {
- wlr_log(L_ERROR, "Failed to create EGL surface for plane");
- return false;
- }
-
- return true;
-}
-
-static int find_id(const void *item, const void *cmp_to) {
- const struct wlr_output_state *output = item;
- const uint32_t *id = cmp_to;
-
- if (output->connector < *id) {
- return -1;
- } else if (output->connector > *id) {
- return 1;
- } else {
- return 0;
- }
-}
-
static void wlr_drm_output_enable(struct wlr_output_state *output, bool enable) {
struct wlr_backend_state *state =
wl_container_of(output->renderer, state, renderer);
@@ -303,11 +319,7 @@ static void wlr_drm_output_enable(struct wlr_output_state *output, bool enable)
drmModeConnectorSetProperty(state->fd, output->connector, output->props.dpms,
DRM_MODE_DPMS_ON);
- // Start rendering loop again by drawing a black frame
- wlr_drm_output_make_current(output);
- glClearColor(0.0, 0.0, 0.0, 1.0);
- glClear(GL_COLOR_BUFFER_BIT);
- wlr_drm_output_swap_buffers(output);
+ wlr_drm_output_start_renderer(output);
} else {
drmModeConnectorSetProperty(state->fd, output->connector, output->props.dpms,
DRM_MODE_DPMS_OFF);
@@ -343,13 +355,19 @@ static void realloc_planes(struct wlr_backend_state *drm, const uint32_t *crtc_i
continue;
struct wlr_drm_crtc *c = &drm->crtcs[i];
- c->planes[type] = &drm->type_planes[type][crtc_res[i]];
+ struct wlr_drm_plane **old = &c->planes[type];
+ struct wlr_drm_plane *new = &drm->type_planes[type][crtc_res[i]];
+
+ if (*old != new) {
+ wlr_drm_plane_renderer_free(&drm->renderer, *old);
+ wlr_drm_plane_renderer_free(&drm->renderer, new);
+ *old = new;
+ }
}
}
}
static void realloc_crtcs(struct wlr_backend_state *drm, struct wlr_output_state *output) {
- bool handled[drm->outputs->length];
uint32_t crtc[drm->num_crtcs];
uint32_t crtc_res[drm->num_crtcs];
uint32_t possible_crtc[drm->outputs->length];
@@ -359,18 +377,15 @@ static void realloc_crtcs(struct wlr_backend_state *drm, struct wlr_output_state
}
memset(possible_crtc, 0, sizeof(possible_crtc));
- memset(handled, 0, sizeof(handled));
size_t index;
for (size_t i = 0; i < drm->outputs->length; ++i) {
struct wlr_output_state *o = drm->outputs->items[i];
- if (o == output) {
+ if (o == output)
index = i;
- }
- if (o->state != WLR_DRM_OUTPUT_CONNECTED) {
+ if (o->state != WLR_DRM_OUTPUT_CONNECTED)
continue;
- }
possible_crtc[i] = o->possible_crtc;
crtc[o->crtc - drm->crtcs] = i;
@@ -379,14 +394,22 @@ static void realloc_crtcs(struct wlr_backend_state *drm, struct wlr_output_state
possible_crtc[index] = output->possible_crtc;
match_obj(drm->outputs->length, possible_crtc, drm->num_crtcs, crtc, crtc_res);
- realloc_planes(drm, crtc_res);
+ bool matched = false;
+ for (size_t i = 0; i < drm->num_crtcs; ++i) {
+ // We don't want any of the current monitors to be deactivated.
+ if (crtc[i] != UNMATCHED && crtc_res[i] == UNMATCHED)
+ return;
+ if (crtc_res[i] == index)
+ matched = true;
+ }
+
+ // There is no point doing anything if this monitor doesn't get activated
+ if (!matched)
+ return;
for (size_t i = 0; i < drm->num_crtcs; ++i) {
- if (crtc_res[i] == UNMATCHED) {
+ if (crtc_res[i] == UNMATCHED)
continue;
- }
-
- handled[crtc_res[i]] = true;
if (crtc_res[i] != crtc[i]) {
struct wlr_output_state *o = drm->outputs->items[crtc_res[i]];
@@ -394,11 +417,7 @@ static void realloc_crtcs(struct wlr_backend_state *drm, struct wlr_output_state
}
}
- for (size_t i = 0; i < drm->outputs->length; ++i) {
- if (!handled[i]) {
- wlr_drm_output_cleanup(drm->outputs->items[i], false);
- }
- }
+ realloc_planes(drm, crtc_res);
}
static bool wlr_drm_output_set_mode(struct wlr_output_state *output,
@@ -450,12 +469,24 @@ static bool wlr_drm_output_set_mode(struct wlr_output_state *output,
output->base->current_mode = mode;
wl_signal_emit(&output->base->events.resolution, output->base);
- if (!plane_init_renderer(&drm->renderer, output->crtc->primary, mode)) {
- wlr_log(L_ERROR, "Failed to initalise renderer for plane");
- goto error_enc;
- }
+ // Since realloc_crtcs can deallocate planes on OTHER outputs,
+ // we actually need to reinitalise all of them
+ for (size_t i = 0; i < drm->outputs->length; ++i) {
+ struct wlr_output_state *output = drm->outputs->items[i];
+ struct wlr_output_mode *mode = output->base->current_mode;
+ struct wlr_drm_crtc *crtc = output->crtc;
+
+ if (output->state != WLR_DRM_OUTPUT_CONNECTED)
+ continue;
- wlr_drm_output_start_renderer(output);
+ if (!wlr_drm_plane_renderer_init(&drm->renderer, crtc->primary,
+ mode->width, mode->height)) {
+ wlr_log(L_ERROR, "Failed to initalise renderer for plane");
+ goto error_enc;
+ }
+
+ wlr_drm_output_start_renderer(output);
+ }
drmModeFreeEncoder(enc);
drmModeFreeConnector(conn);
@@ -566,6 +597,19 @@ static struct wlr_output_impl output_impl = {
.swap_buffers = wlr_drm_output_swap_buffers,
};
+static int find_id(const void *item, const void *cmp_to) {
+ const struct wlr_output_state *output = item;
+ const uint32_t *id = cmp_to;
+
+ if (output->connector < *id) {
+ return -1;
+ } else if (output->connector > *id) {
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
static const int32_t subpixel_map[] = {
[DRM_MODE_SUBPIXEL_UNKNOWN] = WL_OUTPUT_SUBPIXEL_UNKNOWN,
[DRM_MODE_SUBPIXEL_HORIZONTAL_RGB] = WL_OUTPUT_SUBPIXEL_HORIZONTAL_RGB,
@@ -742,6 +786,10 @@ void wlr_drm_output_cleanup(struct wlr_output_state *output, bool restore) {
restore = false;
}
+ wlr_drm_plane_renderer_free(renderer, output->crtc->overlay);
+ wlr_drm_plane_renderer_free(renderer, output->crtc->primary);
+ wlr_drm_plane_renderer_free(renderer, output->crtc->cursor);
+
output->crtc = NULL;
output->possible_crtc = 0;
/* Fallthrough */
diff --git a/backend/drm/drm.h b/backend/drm/drm.h
index ec068cd0..feb932df 100644
--- a/backend/drm/drm.h
+++ b/backend/drm/drm.h
@@ -148,7 +148,6 @@ struct wlr_output_state {
uint32_t cursor_width, cursor_height;
bool pageflip_pending;
- bool cleanup;
};
bool wlr_drm_check_features(struct wlr_backend_state *drm);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-26 05:11:21 +0000