wlroots/backend/drm/drm.c

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#include <assert.h>
#include <drm_mode.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
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#include <errno.h>
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#include <gbm.h>
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#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
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#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <wayland-server.h>
#include <wayland-util.h>
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#include <wlr/backend/interface.h>
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#include <wlr/interfaces/wlr_output.h>
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#include <wlr/render/gles2.h>
#include <wlr/render/wlr_renderer.h>
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#include <wlr/types/wlr_matrix.h>
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#include <wlr/util/log.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include "backend/drm/drm.h"
#include "backend/drm/iface.h"
#include "backend/drm/util.h"
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#include "util/signal.h"
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bool check_drm_features(struct wlr_drm_backend *drm) {
if (drm->parent) {
uint64_t cap;
if (drmGetCap(drm->fd, DRM_CAP_PRIME, &cap) ||
!(cap & DRM_PRIME_CAP_IMPORT)) {
wlr_log(WLR_ERROR,
"PRIME import not supported on secondary GPU");
return false;
}
if (drmGetCap(drm->parent->fd, DRM_CAP_PRIME, &cap) ||
!(cap & DRM_PRIME_CAP_EXPORT)) {
wlr_log(WLR_ERROR,
"PRIME export not supported on primary GPU");
return false;
}
}
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if (drmSetClientCap(drm->fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1)) {
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wlr_log(WLR_ERROR, "DRM universal planes unsupported");
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return false;
}
const char *no_atomic = getenv("WLR_DRM_NO_ATOMIC");
if (no_atomic && strcmp(no_atomic, "1") == 0) {
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wlr_log(WLR_DEBUG, "WLR_DRM_NO_ATOMIC set, forcing legacy DRM interface");
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drm->iface = &legacy_iface;
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} else if (drmSetClientCap(drm->fd, DRM_CLIENT_CAP_ATOMIC, 1)) {
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wlr_log(WLR_DEBUG, "Atomic modesetting unsupported, using legacy DRM interface");
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drm->iface = &legacy_iface;
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} else {
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wlr_log(WLR_DEBUG, "Using atomic DRM interface");
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drm->iface = &atomic_iface;
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}
return true;
}
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static int cmp_plane(const void *arg1, const void *arg2) {
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const struct wlr_drm_plane *a = arg1;
const struct wlr_drm_plane *b = arg2;
return (int)a->type - (int)b->type;
}
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static bool init_planes(struct wlr_drm_backend *drm) {
drmModePlaneRes *plane_res = drmModeGetPlaneResources(drm->fd);
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if (!plane_res) {
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wlr_log_errno(WLR_ERROR, "Failed to get DRM plane resources");
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return false;
}
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wlr_log(WLR_INFO, "Found %"PRIu32" DRM planes", plane_res->count_planes);
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if (plane_res->count_planes == 0) {
drmModeFreePlaneResources(plane_res);
return true;
}
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drm->num_planes = plane_res->count_planes;
drm->planes = calloc(drm->num_planes, sizeof(*drm->planes));
if (!drm->planes) {
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wlr_log_errno(WLR_ERROR, "Allocation failed");
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goto error_res;
}
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for (size_t i = 0; i < drm->num_planes; ++i) {
struct wlr_drm_plane *p = &drm->planes[i];
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drmModePlane *plane = drmModeGetPlane(drm->fd, plane_res->planes[i]);
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if (!plane) {
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wlr_log_errno(WLR_ERROR, "Failed to get DRM plane");
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goto error_planes;
}
p->id = plane->plane_id;
p->possible_crtcs = plane->possible_crtcs;
uint64_t type;
if (!get_drm_plane_props(drm->fd, p->id, &p->props) ||
!get_drm_prop(drm->fd, p->id, p->props.type, &type)) {
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drmModeFreePlane(plane);
goto error_planes;
}
p->type = type;
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drm->num_type_planes[type]++;
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drmModeFreePlane(plane);
}
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wlr_log(WLR_INFO, "(%zu overlay, %zu primary, %zu cursor)",
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drm->num_overlay_planes,
drm->num_primary_planes,
drm->num_cursor_planes);
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qsort(drm->planes, drm->num_planes, sizeof(*drm->planes), cmp_plane);
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drm->overlay_planes = drm->planes;
drm->primary_planes = drm->overlay_planes
+ drm->num_overlay_planes;
drm->cursor_planes = drm->primary_planes
+ drm->num_primary_planes;
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drmModeFreePlaneResources(plane_res);
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return true;
error_planes:
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free(drm->planes);
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error_res:
drmModeFreePlaneResources(plane_res);
return false;
}
bool init_drm_resources(struct wlr_drm_backend *drm) {
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drmModeRes *res = drmModeGetResources(drm->fd);
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if (!res) {
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wlr_log_errno(WLR_ERROR, "Failed to get DRM resources");
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return false;
}
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wlr_log(WLR_INFO, "Found %d DRM CRTCs", res->count_crtcs);
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drm->num_crtcs = res->count_crtcs;
drm->crtcs = calloc(drm->num_crtcs, sizeof(drm->crtcs[0]));
if (!drm->crtcs) {
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wlr_log_errno(WLR_ERROR, "Allocation failed");
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goto error_res;
}
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
struct wlr_drm_crtc *crtc = &drm->crtcs[i];
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crtc->id = res->crtcs[i];
crtc->legacy_crtc = drmModeGetCrtc(drm->fd, crtc->id);
get_drm_crtc_props(drm->fd, crtc->id, &crtc->props);
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}
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if (!init_planes(drm)) {
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goto error_crtcs;
}
drmModeFreeResources(res);
return true;
error_crtcs:
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free(drm->crtcs);
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error_res:
drmModeFreeResources(res);
return false;
}
void finish_drm_resources(struct wlr_drm_backend *drm) {
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if (!drm) {
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return;
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}
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
struct wlr_drm_crtc *crtc = &drm->crtcs[i];
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drmModeAtomicFree(crtc->atomic);
drmModeFreeCrtc(crtc->legacy_crtc);
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if (crtc->mode_id) {
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drmModeDestroyPropertyBlob(drm->fd, crtc->mode_id);
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}
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if (crtc->gamma_lut) {
drmModeDestroyPropertyBlob(drm->fd, crtc->gamma_lut);
}
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}
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for (size_t i = 0; i < drm->num_planes; ++i) {
struct wlr_drm_plane *plane = &drm->planes[i];
if (plane->cursor_bo) {
gbm_bo_destroy(plane->cursor_bo);
}
}
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free(drm->crtcs);
free(drm->planes);
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}
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static bool drm_connector_make_current(struct wlr_output *output,
int *buffer_age) {
struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
return make_drm_surface_current(&conn->crtc->primary->surf, buffer_age);
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}
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static bool drm_connector_swap_buffers(struct wlr_output *output,
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pixman_region32_t *damage) {
struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
struct wlr_drm_backend *drm = (struct wlr_drm_backend *)output->backend;
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if (!drm->session->active) {
return false;
}
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struct wlr_drm_crtc *crtc = conn->crtc;
if (!crtc) {
return false;
}
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struct wlr_drm_plane *plane = crtc->primary;
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struct gbm_bo *bo = swap_drm_surface_buffers(&plane->surf, damage);
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if (drm->parent) {
bo = copy_drm_surface_mgpu(&plane->mgpu_surf, bo);
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}
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uint32_t fb_id = get_fb_for_bo(bo);
if (conn->pageflip_pending) {
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wlr_log(WLR_ERROR, "Skipping pageflip on output '%s'", conn->output.name);
return false;
}
if (!drm->iface->crtc_pageflip(drm, conn, crtc, fb_id, NULL)) {
return false;
}
conn->pageflip_pending = true;
wlr_output_update_enabled(output, true);
return true;
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}
static void fill_empty_gamma_table(uint32_t size,
uint16_t *r, uint16_t *g, uint16_t *b) {
for (uint32_t i = 0; i < size; ++i) {
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uint16_t val = (uint32_t)0xffff * i / (size - 1);
r[i] = g[i] = b[i] = val;
}
}
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static uint32_t drm_connector_get_gamma_size(struct wlr_output *output) {
struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
struct wlr_drm_backend *drm = (struct wlr_drm_backend *)output->backend;
if (conn->crtc) {
return drm->iface->crtc_get_gamma_size(drm, conn->crtc);
}
return 0;
}
static bool drm_connector_set_gamma(struct wlr_output *output,
uint32_t size, uint16_t *r, uint16_t *g, uint16_t *b) {
struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
struct wlr_drm_backend *drm = (struct wlr_drm_backend *)output->backend;
if (!conn->crtc) {
return false;
}
uint16_t *reset_table = NULL;
if (size == 0) {
size = drm_connector_get_gamma_size(output);
reset_table = malloc(3 * size * sizeof(uint16_t));
if (reset_table == NULL) {
wlr_log(WLR_ERROR, "Failed to allocate gamma table");
return false;
}
r = reset_table;
g = reset_table + size;
b = reset_table + 2 * size;
fill_empty_gamma_table(size, r, g, b);
}
bool ok = drm->iface->crtc_set_gamma(drm, conn->crtc, r, g, b, size);
if (ok) {
wlr_output_update_needs_swap(output);
}
free(reset_table);
return ok;
}
static bool drm_connector_export_dmabuf(struct wlr_output *output,
struct wlr_dmabuf_attributes *attribs) {
struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
struct wlr_drm_backend *drm = (struct wlr_drm_backend *)output->backend;
if (!drm->session->active) {
return false;
}
struct wlr_drm_crtc *crtc = conn->crtc;
if (!crtc) {
return false;
}
struct wlr_drm_plane *plane = crtc->primary;
struct wlr_drm_surface *surf = &plane->surf;
return export_drm_bo(surf->back, attribs);
}
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static void drm_connector_start_renderer(struct wlr_drm_connector *conn) {
if (conn->state != WLR_DRM_CONN_CONNECTED) {
return;
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}
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wlr_log(WLR_DEBUG, "Starting renderer on output '%s'", conn->output.name);
struct wlr_drm_backend *drm = (struct wlr_drm_backend *)conn->output.backend;
struct wlr_drm_crtc *crtc = conn->crtc;
if (!crtc) {
return;
}
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struct wlr_drm_plane *plane = crtc->primary;
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struct gbm_bo *bo = get_drm_surface_front(
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drm->parent ? &plane->mgpu_surf : &plane->surf);
uint32_t fb_id = get_fb_for_bo(bo);
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struct wlr_drm_mode *mode = (struct wlr_drm_mode *)conn->output.current_mode;
if (drm->iface->crtc_pageflip(drm, conn, crtc, fb_id, &mode->drm_mode)) {
conn->pageflip_pending = true;
wlr_output_update_enabled(&conn->output, true);
} else {
wl_event_source_timer_update(conn->retry_pageflip,
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1000000.0f / conn->output.current_mode->refresh);
}
}
void enable_drm_connector(struct wlr_output *output, bool enable) {
struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
if (conn->state != WLR_DRM_CONN_CONNECTED
&& conn->state != WLR_DRM_CONN_NEEDS_MODESET) {
return;
}
struct wlr_drm_backend *drm = (struct wlr_drm_backend *)output->backend;
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bool ok = drm->iface->conn_enable(drm, conn, enable);
if (!ok) {
return;
}
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if (enable) {
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drm_connector_start_renderer(conn);
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}
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wlr_output_update_enabled(&conn->output, enable);
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}
static void realloc_planes(struct wlr_drm_backend *drm, const uint32_t *crtc_in,
bool *changed_outputs) {
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wlr_log(WLR_DEBUG, "Reallocating planes");
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// overlay, primary, cursor
for (size_t type = 0; type < 3; ++type) {
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if (drm->num_type_planes[type] == 0) {
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continue;
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}
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uint32_t possible[drm->num_type_planes[type]];
uint32_t crtc[drm->num_crtcs];
uint32_t crtc_res[drm->num_crtcs];
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for (size_t i = 0; i < drm->num_type_planes[type]; ++i) {
possible[i] = drm->type_planes[type][i].possible_crtcs;
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}
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
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if (crtc_in[i] == UNMATCHED) {
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crtc[i] = SKIP;
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} else if (drm->crtcs[i].planes[type]) {
crtc[i] = drm->crtcs[i].planes[type]
- drm->type_planes[type];
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} else {
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crtc[i] = UNMATCHED;
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}
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}
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match_obj(drm->num_type_planes[type], possible,
drm->num_crtcs, crtc, crtc_res);
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
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if (crtc_res[i] == UNMATCHED || crtc_res[i] == SKIP) {
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continue;
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}
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struct wlr_drm_crtc *c = &drm->crtcs[i];
struct wlr_drm_plane **old = &c->planes[type];
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struct wlr_drm_plane *new = &drm->type_planes[type][crtc_res[i]];
if (*old != new) {
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wlr_log(WLR_DEBUG, "Assigning plane %d -> %d to CRTC %d",
*old ? (int)(*old)->id : -1,
new ? (int)new->id : -1,
c->id);
changed_outputs[crtc_res[i]] = true;
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if (*old) {
finish_drm_surface(&(*old)->surf);
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}
finish_drm_surface(&new->surf);
*old = new;
}
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}
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}
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}
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static void realloc_crtcs(struct wlr_drm_backend *drm,
struct wlr_drm_connector *conn, bool *changed_outputs) {
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uint32_t crtc[drm->num_crtcs];
uint32_t crtc_res[drm->num_crtcs];
ssize_t num_outputs = wl_list_length(&drm->outputs);
uint32_t possible_crtc[num_outputs];
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
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crtc[i] = UNMATCHED;
}
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memset(possible_crtc, 0, sizeof(possible_crtc));
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wlr_log(WLR_DEBUG, "Reallocating CRTCs for output '%s'", conn->output.name);
ssize_t index = -1, i = -1;
struct wlr_drm_connector *c;
wl_list_for_each(c, &drm->outputs, link) {
i++;
if (c == conn) {
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index = i;
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}
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wlr_log(WLR_DEBUG, "output '%s' crtc=%p state=%d",
c->output.name, c->crtc, c->state);
if (c->crtc) {
crtc[c->crtc - drm->crtcs] = i;
}
if (c->state == WLR_DRM_CONN_CONNECTED) {
possible_crtc[i] = c->possible_crtc;
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}
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}
assert(index != -1);
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possible_crtc[index] = conn->possible_crtc;
match_obj(wl_list_length(&drm->outputs), possible_crtc,
drm->num_crtcs, crtc, crtc_res);
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bool matched[num_outputs];
memset(matched, false, sizeof(matched));
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
if (crtc_res[i] != UNMATCHED) {
matched[crtc_res[i]] = true;
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}
}
// There is no point doing anything if this monitor doesn't get activated
if (!matched[index]) {
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wlr_log(WLR_DEBUG, "Could not match a CRTC for this output");
return;
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}
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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 && !matched[crtc[i]]) {
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wlr_log(WLR_DEBUG, "Could not match a CRTC for other output %d",
crtc[i]);
return;
}
}
changed_outputs[index] = true;
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for (size_t i = 0; i < drm->num_crtcs; ++i) {
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if (crtc_res[i] == UNMATCHED) {
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continue;
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}
2017-07-29 10:14:29 +00:00
2017-07-30 22:04:34 +00:00
if (crtc_res[i] != crtc[i]) {
changed_outputs[crtc_res[i]] = true;
struct wlr_drm_connector *c;
size_t pos = 0;
wl_list_for_each(c, &drm->outputs, link) {
if (pos == crtc_res[i]) {
break;
}
pos++;
}
c->crtc = &drm->crtcs[i];
2018-07-09 21:49:54 +00:00
wlr_log(WLR_DEBUG, "Assigning CRTC %d to output '%s'",
drm->crtcs[i].id, c->output.name);
2017-07-30 22:04:34 +00:00
}
}
2017-07-29 10:14:29 +00:00
realloc_planes(drm, crtc_res, changed_outputs);
2017-07-30 22:04:34 +00:00
}
static uint32_t get_possible_crtcs(int fd, uint32_t conn_id) {
drmModeConnector *conn = drmModeGetConnector(fd, conn_id);
2017-07-30 22:04:34 +00:00
if (!conn) {
2018-07-09 21:49:54 +00:00
wlr_log_errno(WLR_ERROR, "Failed to get DRM connector");
return 0;
2017-07-30 22:04:34 +00:00
}
if (conn->connection != DRM_MODE_CONNECTED || conn->count_modes == 0) {
2018-07-09 21:49:54 +00:00
wlr_log(WLR_ERROR, "Output is not connected");
goto error_conn;
2017-07-30 22:04:34 +00:00
}
drmModeEncoder *enc = NULL;
for (int i = 0; !enc && i < conn->count_encoders; ++i) {
enc = drmModeGetEncoder(fd, conn->encoders[i]);
2017-07-30 22:04:34 +00:00
}
if (!enc) {
2018-07-09 21:49:54 +00:00
wlr_log(WLR_ERROR, "Failed to get DRM encoder");
2017-07-30 22:04:34 +00:00
goto error_conn;
}
uint32_t ret = enc->possible_crtcs;
drmModeFreeEncoder(enc);
drmModeFreeConnector(conn);
return ret;
2017-07-30 22:04:34 +00:00
error_conn:
drmModeFreeConnector(conn);
return 0;
}
2018-04-21 10:42:18 +00:00
static void drm_connector_cleanup(struct wlr_drm_connector *conn);
static bool drm_connector_set_mode(struct wlr_output *output,
struct wlr_output_mode *mode) {
struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
struct wlr_drm_backend *drm = (struct wlr_drm_backend *)output->backend;
bool changed_outputs[wl_list_length(&drm->outputs)];
2018-07-09 21:49:54 +00:00
wlr_log(WLR_INFO, "Modesetting '%s' with '%ux%u@%u mHz'", conn->output.name,
mode->width, mode->height, mode->refresh);
conn->possible_crtc = get_possible_crtcs(drm->fd, conn->id);
if (conn->possible_crtc == 0) {
goto error_conn;
2017-07-30 22:04:34 +00:00
}
memset(changed_outputs, false, sizeof(changed_outputs));
realloc_crtcs(drm, conn, changed_outputs);
struct wlr_drm_crtc *crtc = conn->crtc;
if (!crtc) {
2018-07-09 21:49:54 +00:00
wlr_log(WLR_ERROR, "Unable to match %s with a CRTC", conn->output.name);
return false;
}
2018-07-09 21:49:54 +00:00
wlr_log(WLR_DEBUG, "%s: crtc=%td ovr=%td pri=%td cur=%td", conn->output.name,
2017-09-30 09:22:26 +00:00
crtc - drm->crtcs,
crtc->overlay ? crtc->overlay - drm->overlay_planes : -1,
crtc->primary ? crtc->primary - drm->primary_planes : -1,
crtc->cursor ? crtc->cursor - drm->cursor_planes : -1);
2017-05-07 16:26:48 +00:00
conn->state = WLR_DRM_CONN_CONNECTED;
wlr_output_update_mode(&conn->output, mode);
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// When switching VTs, the mode is not updated but the buffers become
// invalid, so we need to manually damage the output here
wlr_output_damage_whole(&conn->output);
// Since realloc_crtcs can deallocate planes on OTHER outputs,
// we actually need to reinitialize any that has changed
ssize_t output_index = -1;
wl_list_for_each(conn, &drm->outputs, link) {
output_index++;
struct wlr_output_mode *mode = conn->output.current_mode;
struct wlr_drm_crtc *crtc = conn->crtc;
if (conn->state != WLR_DRM_CONN_CONNECTED ||
!changed_outputs[output_index]) {
continue;
2017-08-06 22:15:05 +00:00
}
2017-05-07 16:26:48 +00:00
if (!init_drm_plane_surfaces(crtc->primary, drm,
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mode->width, mode->height, GBM_FORMAT_XRGB8888)) {
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wlr_log(WLR_ERROR, "Failed to initialize renderer for plane");
goto error_conn;
}
2018-04-21 10:42:18 +00:00
drm_connector_start_renderer(conn);
}
2017-08-05 05:27:59 +00:00
2017-05-07 16:26:48 +00:00
return true;
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error_conn:
2018-04-21 10:42:18 +00:00
drm_connector_cleanup(conn);
2017-05-07 16:26:48 +00:00
return false;
}
bool wlr_drm_connector_add_mode(struct wlr_output *output,
const drmModeModeInfo *modeinfo) {
struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
assert(modeinfo);
if (modeinfo->type != DRM_MODE_TYPE_USERDEF) {
return false;
}
struct wlr_drm_mode *mode = calloc(1, sizeof(*mode));
if (!mode) {
return false;
}
memcpy(&mode->drm_mode, modeinfo, sizeof(*modeinfo));
mode->wlr_mode.width = mode->drm_mode.hdisplay;
mode->wlr_mode.height = mode->drm_mode.vdisplay;
mode->wlr_mode.refresh = mode->drm_mode.vrefresh;
2018-07-09 21:49:54 +00:00
wlr_log(WLR_INFO, "Registered custom mode "
"%"PRId32"x%"PRId32"@%"PRId32,
mode->wlr_mode.width, mode->wlr_mode.height,
mode->wlr_mode.refresh);
wl_list_insert(&conn->output.modes, &mode->wlr_mode.link);
return true;
}
2018-04-21 10:42:18 +00:00
static void drm_connector_transform(struct wlr_output *output,
enum wl_output_transform transform) {
output->transform = transform;
}
2018-04-21 10:42:18 +00:00
static bool drm_connector_set_cursor(struct wlr_output *output,
2018-05-09 18:58:18 +00:00
struct wlr_texture *texture, int32_t scale,
enum wl_output_transform transform, int32_t hotspot_x, int32_t hotspot_y,
bool update_texture) {
struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
struct wlr_drm_backend *drm = (struct wlr_drm_backend *)output->backend;
struct wlr_drm_crtc *crtc = conn->crtc;
2018-01-21 19:57:24 +00:00
if (!crtc) {
return false;
}
2017-06-26 07:32:36 +00:00
struct wlr_drm_plane *plane = crtc->cursor;
2017-08-06 09:38:40 +00:00
if (!plane) {
// We don't have a real cursor plane, so we make a fake one
2017-08-06 09:38:40 +00:00
plane = calloc(1, sizeof(*plane));
if (!plane) {
2018-07-09 21:49:54 +00:00
wlr_log_errno(WLR_ERROR, "Allocation failed");
2017-08-06 09:38:40 +00:00
return false;
2017-06-26 07:32:36 +00:00
}
2017-08-06 09:38:40 +00:00
crtc->cursor = plane;
}
2017-06-26 07:32:36 +00:00
2017-09-30 07:52:58 +00:00
if (!plane->surf.gbm) {
2017-08-06 09:38:40 +00:00
int ret;
uint64_t w, h;
2017-09-30 09:22:26 +00:00
ret = drmGetCap(drm->fd, DRM_CAP_CURSOR_WIDTH, &w);
2017-08-06 09:38:40 +00:00
w = ret ? 64 : w;
2017-09-30 09:22:26 +00:00
ret = drmGetCap(drm->fd, DRM_CAP_CURSOR_HEIGHT, &h);
2017-08-06 09:38:40 +00:00
h = ret ? 64 : h;
struct wlr_drm_renderer *renderer =
drm->parent ? &drm->parent->renderer : &drm->renderer;
if (!init_drm_surface(&plane->surf, renderer, w, h,
GBM_FORMAT_ARGB8888, 0)) {
2018-07-09 21:49:54 +00:00
wlr_log(WLR_ERROR, "Cannot allocate cursor resources");
2017-06-26 07:32:36 +00:00
return false;
}
plane->cursor_bo = gbm_bo_create(drm->renderer.gbm, w, h,
GBM_FORMAT_ARGB8888, GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE);
2017-08-07 09:07:42 +00:00
if (!plane->cursor_bo) {
2018-07-09 21:49:54 +00:00
wlr_log_errno(WLR_ERROR, "Failed to create cursor bo");
2017-08-07 09:07:42 +00:00
return false;
}
2017-06-16 19:38:34 +00:00
}
2017-06-26 07:32:36 +00:00
wlr_matrix_projection(plane->matrix, plane->surf.width,
plane->surf.height, output->transform);
struct wlr_box hotspot = { .x = hotspot_x, .y = hotspot_y };
2018-05-09 18:58:18 +00:00
wlr_box_transform(&hotspot, wlr_output_transform_invert(output->transform),
plane->surf.width, plane->surf.height, &hotspot);
if (plane->cursor_hotspot_x != hotspot.x ||
plane->cursor_hotspot_y != hotspot.y) {
// Update cursor hotspot
conn->cursor_x -= hotspot.x - plane->cursor_hotspot_x;
conn->cursor_y -= hotspot.y - plane->cursor_hotspot_y;
plane->cursor_hotspot_x = hotspot.x;
plane->cursor_hotspot_y = hotspot.y;
if (!drm->iface->crtc_move_cursor(drm, conn->crtc, conn->cursor_x,
conn->cursor_y)) {
return false;
}
wlr_output_update_needs_swap(output);
}
if (!update_texture) {
// Don't update cursor image
return true;
}
plane->cursor_enabled = false;
if (texture != NULL) {
int width, height;
wlr_texture_get_size(texture, &width, &height);
2018-05-09 18:58:18 +00:00
width = width * output->scale / scale;
height = height * output->scale / scale;
if (width > (int)plane->surf.width || height > (int)plane->surf.height) {
2018-07-09 21:49:54 +00:00
wlr_log(WLR_ERROR, "Cursor too large (max %dx%d)",
(int)plane->surf.width, (int)plane->surf.height);
return false;
}
2017-08-07 09:07:42 +00:00
uint32_t bo_width = gbm_bo_get_width(plane->cursor_bo);
uint32_t bo_height = gbm_bo_get_height(plane->cursor_bo);
2017-08-07 09:07:42 +00:00
uint32_t bo_stride;
void *bo_data;
if (!gbm_bo_map(plane->cursor_bo, 0, 0, bo_width, bo_height,
GBM_BO_TRANSFER_WRITE, &bo_stride, &bo_data)) {
2018-07-09 21:49:54 +00:00
wlr_log_errno(WLR_ERROR, "Unable to map buffer");
return false;
}
2017-06-26 05:34:15 +00:00
make_drm_surface_current(&plane->surf, NULL);
2017-06-26 05:34:15 +00:00
struct wlr_renderer *rend = plane->surf.renderer->wlr_rend;
2018-05-09 18:58:18 +00:00
struct wlr_box cursor_box = { .width = width, .height = height };
float matrix[9];
wlr_matrix_project_box(matrix, &cursor_box, transform, 0, plane->matrix);
wlr_renderer_begin(rend, plane->surf.width, plane->surf.height);
wlr_renderer_clear(rend, (float[]){ 0.0, 0.0, 0.0, 0.0 });
2018-05-09 18:58:18 +00:00
wlr_render_texture_with_matrix(rend, texture, matrix, 1.0);
wlr_renderer_end(rend);
2017-08-06 09:38:40 +00:00
wlr_renderer_read_pixels(rend, WL_SHM_FORMAT_ARGB8888, NULL, bo_stride,
plane->surf.width, plane->surf.height, 0, 0, 0, 0, bo_data);
2017-08-06 09:38:40 +00:00
swap_drm_surface_buffers(&plane->surf, NULL);
gbm_bo_unmap(plane->cursor_bo, bo_data);
plane->cursor_enabled = true;
}
2017-08-07 09:07:42 +00:00
if (!drm->session->active) {
return true; // will be committed when session is resumed
}
struct gbm_bo *bo = plane->cursor_enabled ? plane->cursor_bo : NULL;
bool ok = drm->iface->crtc_set_cursor(drm, crtc, bo);
if (ok) {
wlr_output_update_needs_swap(output);
}
return ok;
2017-06-16 19:38:34 +00:00
}
2018-04-21 10:42:18 +00:00
static bool drm_connector_move_cursor(struct wlr_output *output,
2017-06-16 19:38:34 +00:00
int x, int y) {
struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
struct wlr_drm_backend *drm = (struct wlr_drm_backend *)output->backend;
if (!conn->crtc) {
return false;
}
struct wlr_drm_plane *plane = conn->crtc->cursor;
struct wlr_box box = { .x = x, .y = y };
int width, height;
wlr_output_transformed_resolution(output, &width, &height);
2017-08-20 20:02:39 +00:00
enum wl_output_transform transform =
wlr_output_transform_invert(output->transform);
wlr_box_transform(&box, transform, width, height, &box);
2017-08-20 20:02:39 +00:00
if (plane != NULL) {
box.x -= plane->cursor_hotspot_x;
box.y -= plane->cursor_hotspot_y;
}
conn->cursor_x = box.x;
conn->cursor_y = box.y;
if (!drm->session->active) {
return true; // will be committed when session is resumed
}
bool ok = drm->iface->crtc_move_cursor(drm, conn->crtc, box.x, box.y);
if (ok) {
wlr_output_update_needs_swap(output);
}
return ok;
2017-06-16 19:38:34 +00:00
}
2018-04-21 10:42:18 +00:00
static void drm_connector_destroy(struct wlr_output *output) {
struct wlr_drm_connector *conn = (struct wlr_drm_connector *)output;
2018-04-21 10:42:18 +00:00
drm_connector_cleanup(conn);
wl_event_source_remove(conn->retry_pageflip);
wl_list_remove(&conn->link);
free(conn);
2017-05-07 16:26:48 +00:00
}
2018-04-21 10:42:18 +00:00
static const struct wlr_output_impl output_impl = {
.enable = enable_drm_connector,
2018-04-21 10:42:18 +00:00
.set_mode = drm_connector_set_mode,
.transform = drm_connector_transform,
.set_cursor = drm_connector_set_cursor,
.move_cursor = drm_connector_move_cursor,
.destroy = drm_connector_destroy,
.make_current = drm_connector_make_current,
.swap_buffers = drm_connector_swap_buffers,
.set_gamma = drm_connector_set_gamma,
.get_gamma_size = drm_connector_get_gamma_size,
.export_dmabuf = drm_connector_export_dmabuf,
2017-05-07 16:26:48 +00:00
};
2017-12-19 18:59:08 +00:00
bool wlr_output_is_drm(struct wlr_output *output) {
return output->impl == &output_impl;
}
static int retry_pageflip(void *data) {
struct wlr_drm_connector *conn = data;
2018-07-09 21:49:54 +00:00
wlr_log(WLR_INFO, "%s: Retrying pageflip", conn->output.name);
2018-04-21 10:42:18 +00:00
drm_connector_start_renderer(conn);
2017-09-23 06:44:39 +00:00
return 0;
}
2017-07-20 11:26:53 +00:00
static const int32_t subpixel_map[] = {
[DRM_MODE_SUBPIXEL_UNKNOWN] = WL_OUTPUT_SUBPIXEL_UNKNOWN,
[DRM_MODE_SUBPIXEL_HORIZONTAL_RGB] = WL_OUTPUT_SUBPIXEL_HORIZONTAL_RGB,
[DRM_MODE_SUBPIXEL_HORIZONTAL_BGR] = WL_OUTPUT_SUBPIXEL_HORIZONTAL_BGR,
[DRM_MODE_SUBPIXEL_VERTICAL_RGB] = WL_OUTPUT_SUBPIXEL_VERTICAL_RGB,
[DRM_MODE_SUBPIXEL_VERTICAL_BGR] = WL_OUTPUT_SUBPIXEL_VERTICAL_BGR,
[DRM_MODE_SUBPIXEL_NONE] = WL_OUTPUT_SUBPIXEL_NONE,
};
2017-05-13 08:37:15 +00:00
void scan_drm_connectors(struct wlr_drm_backend *drm) {
2018-07-09 21:49:54 +00:00
wlr_log(WLR_INFO, "Scanning DRM connectors");
2017-09-30 09:22:26 +00:00
drmModeRes *res = drmModeGetResources(drm->fd);
2017-05-03 10:40:19 +00:00
if (!res) {
2018-07-09 21:49:54 +00:00
wlr_log_errno(WLR_ERROR, "Failed to get DRM resources");
2017-05-03 10:40:19 +00:00
return;
}
2017-05-01 03:20:48 +00:00
size_t drm_outputs_len = wl_list_length(&drm->outputs);
// +1 so length can never be 0, which is undefined behaviour.
// Last element isn't used.
bool seen[drm_outputs_len + 1];
memset(seen, false, sizeof(seen));
size_t new_outputs_len = 0;
struct wlr_drm_connector *new_outputs[drm_outputs_len + 1];
2017-05-03 10:40:19 +00:00
for (int i = 0; i < res->count_connectors; ++i) {
drmModeConnector *drm_conn = drmModeGetConnector(drm->fd,
2017-07-20 11:26:53 +00:00
res->connectors[i]);
if (!drm_conn) {
2018-07-09 21:49:54 +00:00
wlr_log_errno(WLR_ERROR, "Failed to get DRM connector");
2017-05-03 10:40:19 +00:00
continue;
2017-05-01 03:20:48 +00:00
}
drmModeEncoder *curr_enc = drmModeGetEncoder(drm->fd,
drm_conn->encoder_id);
int index = -1;
struct wlr_drm_connector *c, *wlr_conn = NULL;
wl_list_for_each(c, &drm->outputs, link) {
index++;
if (c->id == drm_conn->connector_id) {
wlr_conn = c;
break;
}
}
if (!wlr_conn) {
wlr_conn = calloc(1, sizeof(*wlr_conn));
if (!wlr_conn) {
2018-07-09 21:49:54 +00:00
wlr_log_errno(WLR_ERROR, "Allocation failed");
drmModeFreeEncoder(curr_enc);
drmModeFreeConnector(drm_conn);
2017-07-20 11:26:53 +00:00
continue;
2017-05-07 16:26:48 +00:00
}
2018-01-04 11:46:15 +00:00
wlr_output_init(&wlr_conn->output, &drm->backend, &output_impl,
drm->display);
2017-05-03 10:40:19 +00:00
2017-09-30 09:22:26 +00:00
struct wl_event_loop *ev = wl_display_get_event_loop(drm->display);
wlr_conn->retry_pageflip = wl_event_loop_add_timer(ev, retry_pageflip,
wlr_conn);
wlr_conn->state = WLR_DRM_CONN_DISCONNECTED;
wlr_conn->id = drm_conn->connector_id;
2017-05-03 10:40:19 +00:00
if (curr_enc) {
wlr_conn->old_crtc = drmModeGetCrtc(drm->fd, curr_enc->crtc_id);
}
snprintf(wlr_conn->output.name, sizeof(wlr_conn->output.name),
"%s-%"PRIu32,
conn_get_name(drm_conn->connector_type),
drm_conn->connector_type_id);
2017-07-20 11:26:53 +00:00
wl_list_insert(&drm->outputs, &wlr_conn->link);
2018-07-09 21:49:54 +00:00
wlr_log(WLR_INFO, "Found display '%s'", wlr_conn->output.name);
2017-05-03 10:40:19 +00:00
} else {
seen[index] = true;
2017-05-01 03:20:48 +00:00
}
if (curr_enc) {
for (size_t i = 0; i < drm->num_crtcs; ++i) {
if (drm->crtcs[i].id == curr_enc->crtc_id) {
wlr_conn->crtc = &drm->crtcs[i];
break;
}
}
} else {
wlr_conn->crtc = NULL;
}
if (wlr_conn->state == WLR_DRM_CONN_DISCONNECTED &&
drm_conn->connection == DRM_MODE_CONNECTED) {
2018-07-09 21:49:54 +00:00
wlr_log(WLR_INFO, "'%s' connected", wlr_conn->output.name);
wlr_log(WLR_DEBUG, "Current CRTC: %d",
wlr_conn->crtc ? (int)wlr_conn->crtc->id : -1);
wlr_conn->output.phys_width = drm_conn->mmWidth;
wlr_conn->output.phys_height = drm_conn->mmHeight;
2018-07-09 21:49:54 +00:00
wlr_log(WLR_INFO, "Physical size: %"PRId32"x%"PRId32,
wlr_conn->output.phys_width, wlr_conn->output.phys_height);
wlr_conn->output.subpixel = subpixel_map[drm_conn->subpixel];
get_drm_connector_props(drm->fd, wlr_conn->id, &wlr_conn->props);
size_t edid_len = 0;
uint8_t *edid = get_drm_prop_blob(drm->fd,
wlr_conn->id, wlr_conn->props.edid, &edid_len);
parse_edid(&wlr_conn->output, edid_len, edid);
free(edid);
2018-07-09 21:49:54 +00:00
wlr_log(WLR_INFO, "Detected modes:");
2017-05-03 10:40:19 +00:00
for (int i = 0; i < drm_conn->count_modes; ++i) {
struct wlr_drm_mode *mode = calloc(1, sizeof(*mode));
if (!mode) {
2018-07-09 21:49:54 +00:00
wlr_log_errno(WLR_ERROR, "Allocation failed");
continue;
}
mode->drm_mode = drm_conn->modes[i];
mode->wlr_mode.width = mode->drm_mode.hdisplay;
mode->wlr_mode.height = mode->drm_mode.vdisplay;
mode->wlr_mode.refresh = calculate_refresh_rate(&mode->drm_mode);
2017-05-03 10:40:19 +00:00
2018-07-09 21:49:54 +00:00
wlr_log(WLR_INFO, " %"PRId32"x%"PRId32"@%"PRId32,
2017-08-14 12:03:51 +00:00
mode->wlr_mode.width, mode->wlr_mode.height,
mode->wlr_mode.refresh);
2017-05-01 03:20:48 +00:00
wl_list_insert(&wlr_conn->output.modes, &mode->wlr_mode.link);
}
2017-05-01 03:20:48 +00:00
wlr_output_update_enabled(&wlr_conn->output, wlr_conn->crtc != NULL);
wlr_conn->state = WLR_DRM_CONN_NEEDS_MODESET;
new_outputs[new_outputs_len++] = wlr_conn;
} else if (wlr_conn->state == WLR_DRM_CONN_CONNECTED &&
drm_conn->connection != DRM_MODE_CONNECTED) {
2018-07-09 21:49:54 +00:00
wlr_log(WLR_INFO, "'%s' disconnected", wlr_conn->output.name);
2018-01-04 11:46:15 +00:00
wlr_output_update_enabled(&wlr_conn->output, false);
2018-04-21 10:42:18 +00:00
drm_connector_cleanup(wlr_conn);
2017-05-01 03:20:48 +00:00
}
drmModeFreeEncoder(curr_enc);
drmModeFreeConnector(drm_conn);
2017-05-01 03:20:48 +00:00
}
drmModeFreeResources(res);
struct wlr_drm_connector *conn, *tmp_conn;
size_t index = wl_list_length(&drm->outputs);
wl_list_for_each_safe(conn, tmp_conn, &drm->outputs, link) {
index--;
if (index >= drm_outputs_len || seen[index]) {
continue;
}
2018-07-09 21:49:54 +00:00
wlr_log(WLR_INFO, "'%s' disappeared", conn->output.name);
2018-04-21 10:42:18 +00:00
drm_connector_cleanup(conn);
drmModeFreeCrtc(conn->old_crtc);
wl_event_source_remove(conn->retry_pageflip);
wl_list_remove(&conn->link);
free(conn);
}
for (size_t i = 0; i < new_outputs_len; ++i) {
struct wlr_drm_connector *conn = new_outputs[i];
wlr_log(WLR_INFO, "Requesting modeset for '%s'",
conn->output.name);
wlr_signal_emit_safe(&drm->backend.events.new_output,
&conn->output);
}
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}
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static void page_flip_handler(int fd, unsigned seq,
unsigned tv_sec, unsigned tv_usec, void *user) {
struct wlr_drm_connector *conn = user;
struct wlr_drm_backend *drm = (struct wlr_drm_backend *)conn->output.backend;
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conn->pageflip_pending = false;
if (conn->state != WLR_DRM_CONN_CONNECTED) {
return;
}
post_drm_surface(&conn->crtc->primary->surf);
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if (drm->parent) {
post_drm_surface(&conn->crtc->primary->mgpu_surf);
}
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if (drm->session->active) {
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wlr_output_send_frame(&conn->output);
}
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}
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int handle_drm_event(int fd, uint32_t mask, void *data) {
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drmEventContext event = {
.version = DRM_EVENT_CONTEXT_VERSION,
.page_flip_handler = page_flip_handler,
};
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drmHandleEvent(fd, &event);
return 1;
}
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void restore_drm_outputs(struct wlr_drm_backend *drm) {
uint64_t to_close = (1L << wl_list_length(&drm->outputs)) - 1;
struct wlr_drm_connector *conn;
wl_list_for_each(conn, &drm->outputs, link) {
if (conn->state == WLR_DRM_CONN_CONNECTED) {
conn->state = WLR_DRM_CONN_CLEANUP;
}
}
time_t timeout = time(NULL) + 5;
while (to_close && time(NULL) < timeout) {
handle_drm_event(drm->fd, 0, NULL);
size_t i = 0;
struct wlr_drm_connector *conn;
wl_list_for_each(conn, &drm->outputs, link) {
if (conn->state != WLR_DRM_CONN_CLEANUP || !conn->pageflip_pending) {
to_close &= ~(1 << i);
}
i++;
}
}
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if (to_close) {
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wlr_log(WLR_ERROR, "Timed out stopping output renderers");
}
wl_list_for_each(conn, &drm->outputs, link) {
drmModeCrtc *crtc = conn->old_crtc;
if (!crtc) {
continue;
}
drmModeSetCrtc(drm->fd, crtc->crtc_id, crtc->buffer_id, crtc->x, crtc->y,
&conn->id, 1, &crtc->mode);
drmModeFreeCrtc(crtc);
}
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}
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static void drm_connector_cleanup(struct wlr_drm_connector *conn) {
if (!conn) {
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return;
}
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switch (conn->state) {
case WLR_DRM_CONN_CONNECTED:
case WLR_DRM_CONN_CLEANUP:;
struct wlr_drm_crtc *crtc = conn->crtc;
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for (int i = 0; i < 3; ++i) {
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if (!crtc->planes[i]) {
continue;
}
finish_drm_surface(&crtc->planes[i]->surf);
finish_drm_surface(&crtc->planes[i]->mgpu_surf);
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if (crtc->planes[i]->id == 0) {
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free(crtc->planes[i]);
crtc->planes[i] = NULL;
}
}
conn->output.current_mode = NULL;
struct wlr_drm_mode *mode, *tmp;
wl_list_for_each_safe(mode, tmp, &conn->output.modes, wlr_mode.link) {
wl_list_remove(&mode->wlr_mode.link);
free(mode);
}
memset(&conn->output.make, 0, sizeof(conn->output.make));
memset(&conn->output.model, 0, sizeof(conn->output.model));
memset(&conn->output.serial, 0, sizeof(conn->output.serial));
conn->crtc = NULL;
conn->possible_crtc = 0;
conn->pageflip_pending = false;
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/* Fallthrough */
case WLR_DRM_CONN_NEEDS_MODESET:
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wlr_log(WLR_INFO, "Emitting destruction signal for '%s'",
conn->output.name);
wlr_signal_emit_safe(&conn->output.events.destroy, &conn->output);
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break;
case WLR_DRM_CONN_DISCONNECTED:
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break;
}
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conn->state = WLR_DRM_CONN_DISCONNECTED;
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}