1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
#include <assert.h>
#include <stdlib.h>
#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"
static bool legacy_fb_props_match(struct wlr_drm_fb *fb1,
struct wlr_drm_fb *fb2) {
struct wlr_dmabuf_attributes dmabuf1 = {0}, dmabuf2 = {0};
if (!wlr_buffer_get_dmabuf(fb1->wlr_buf, &dmabuf1) ||
!wlr_buffer_get_dmabuf(fb2->wlr_buf, &dmabuf2)) {
return false;
}
if (dmabuf1.width != dmabuf2.width ||
dmabuf1.height != dmabuf2.height ||
dmabuf1.format != dmabuf2.format ||
dmabuf1.modifier != dmabuf2.modifier ||
dmabuf1.n_planes != dmabuf2.n_planes) {
return false;
}
for (int i = 0; i < dmabuf1.n_planes; i++) {
if (dmabuf1.stride[i] != dmabuf2.stride[i] ||
dmabuf1.offset[i] != dmabuf2.offset[i]) {
return false;
}
}
return true;
}
static bool legacy_crtc_test(struct wlr_drm_connector *conn,
const struct wlr_drm_connector_state *state) {
struct wlr_drm_crtc *crtc = conn->crtc;
if ((state->base->committed & WLR_OUTPUT_STATE_BUFFER) && !state->modeset) {
struct wlr_drm_fb *pending_fb = state->primary_fb;
struct wlr_drm_fb *prev_fb = crtc->primary->queued_fb;
if (!prev_fb) {
prev_fb = crtc->primary->current_fb;
}
/* Legacy is only guaranteed to be able to display a FB if it's been
* allocated the same way as the previous one. */
if (prev_fb != NULL && !legacy_fb_props_match(prev_fb, pending_fb)) {
wlr_drm_conn_log(conn, WLR_DEBUG,
"Cannot change scan-out buffer parameters with legacy KMS API");
return false;
}
}
return true;
}
static bool legacy_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) {
if (!legacy_crtc_test(conn, state)) {
return false;
}
if (test_only) {
return true;
}
struct wlr_drm_backend *drm = conn->backend;
struct wlr_output *output = &conn->output;
struct wlr_drm_crtc *crtc = conn->crtc;
struct wlr_drm_plane *cursor = crtc->cursor;
uint32_t fb_id = 0;
if (state->active) {
if (state->primary_fb == NULL) {
wlr_log(WLR_ERROR, "%s: failed to acquire primary FB",
conn->output.name);
return false;
}
fb_id = state->primary_fb->id;
}
if (state->modeset) {
uint32_t *conns = NULL;
size_t conns_len = 0;
drmModeModeInfo *mode = NULL;
if (state->active) {
conns = &conn->id;
conns_len = 1;
mode = (drmModeModeInfo *)&state->mode;
}
uint32_t dpms = state->active ? DRM_MODE_DPMS_ON : DRM_MODE_DPMS_OFF;
if (drmModeConnectorSetProperty(drm->fd, conn->id, conn->props.dpms,
dpms) != 0) {
wlr_drm_conn_log_errno(conn, WLR_ERROR,
"Failed to set DPMS property");
return false;
}
if (drmModeSetCrtc(drm->fd, crtc->id, fb_id, 0, 0,
conns, conns_len, mode)) {
wlr_drm_conn_log_errno(conn, WLR_ERROR, "Failed to set CRTC");
return false;
}
}
if (state->base->committed & WLR_OUTPUT_STATE_GAMMA_LUT) {
if (!drm_legacy_crtc_set_gamma(drm, crtc,
state->base->gamma_lut_size, state->base->gamma_lut)) {
return false;
}
}
if (state->base->committed & WLR_OUTPUT_STATE_ADAPTIVE_SYNC_ENABLED) {
if (!drm_connector_supports_vrr(conn)) {
return false;
}
if (drmModeObjectSetProperty(drm->fd, crtc->id, DRM_MODE_OBJECT_CRTC,
crtc->props.vrr_enabled,
state->base->adaptive_sync_enabled) != 0) {
wlr_drm_conn_log_errno(conn, WLR_ERROR,
"drmModeObjectSetProperty(VRR_ENABLED) failed");
return false;
}
output->adaptive_sync_status = state->base->adaptive_sync_enabled ?
WLR_OUTPUT_ADAPTIVE_SYNC_ENABLED :
WLR_OUTPUT_ADAPTIVE_SYNC_DISABLED;
wlr_drm_conn_log(conn, WLR_DEBUG, "VRR %s",
state->base->adaptive_sync_enabled ? "enabled" : "disabled");
}
if (cursor != NULL && drm_connector_is_cursor_visible(conn)) {
struct wlr_drm_fb *cursor_fb = get_next_cursor_fb(conn);
if (cursor_fb == NULL) {
wlr_drm_conn_log(conn, WLR_DEBUG, "Failed to acquire cursor FB");
return false;
}
drmModeFB *drm_fb = drmModeGetFB(drm->fd, cursor_fb->id);
if (drm_fb == NULL) {
wlr_drm_conn_log_errno(conn, WLR_DEBUG, "Failed to get cursor "
"BO handle: drmModeGetFB failed");
return false;
}
uint32_t cursor_handle = drm_fb->handle;
uint32_t cursor_width = drm_fb->width;
uint32_t cursor_height = drm_fb->height;
drmModeFreeFB(drm_fb);
int ret = drmModeSetCursor(drm->fd, crtc->id, cursor_handle,
cursor_width, cursor_height);
int set_cursor_errno = errno;
if (drmCloseBufferHandle(drm->fd, cursor_handle) != 0) {
wlr_log_errno(WLR_ERROR, "drmCloseBufferHandle failed");
}
if (ret != 0) {
wlr_drm_conn_log(conn, WLR_DEBUG, "drmModeSetCursor failed: %s",
strerror(set_cursor_errno));
return false;
}
if (drmModeMoveCursor(drm->fd,
crtc->id, conn->cursor_x, conn->cursor_y) != 0) {
wlr_drm_conn_log_errno(conn, WLR_ERROR, "drmModeMoveCursor failed");
return false;
}
} else {
if (drmModeSetCursor(drm->fd, crtc->id, 0, 0, 0)) {
wlr_drm_conn_log_errno(conn, WLR_DEBUG, "drmModeSetCursor failed");
return false;
}
}
if (flags & DRM_MODE_PAGE_FLIP_EVENT) {
if (drmModePageFlip(drm->fd, crtc->id, fb_id, flags, page_flip)) {
wlr_drm_conn_log_errno(conn, WLR_ERROR, "drmModePageFlip failed");
return false;
}
}
return true;
}
static void fill_empty_gamma_table(size_t size,
uint16_t *r, uint16_t *g, uint16_t *b) {
assert(0xFFFF < UINT64_MAX / (size - 1));
for (uint32_t i = 0; i < size; ++i) {
uint16_t val = (uint64_t)0xFFFF * i / (size - 1);
r[i] = g[i] = b[i] = val;
}
}
bool drm_legacy_crtc_set_gamma(struct wlr_drm_backend *drm,
struct wlr_drm_crtc *crtc, size_t size, uint16_t *lut) {
uint16_t *linear_lut = NULL;
if (size == 0) {
// The legacy interface doesn't offer a way to reset the gamma LUT
size = drm_crtc_get_gamma_lut_size(drm, crtc);
if (size == 0) {
return false;
}
linear_lut = malloc(3 * size * sizeof(uint16_t));
if (linear_lut == NULL) {
wlr_log_errno(WLR_ERROR, "Allocation failed");
return false;
}
fill_empty_gamma_table(size, linear_lut, linear_lut + size,
linear_lut + 2 * size);
lut = linear_lut;
}
uint16_t *r = lut, *g = lut + size, *b = lut + 2 * size;
if (drmModeCrtcSetGamma(drm->fd, crtc->id, size, r, g, b) != 0) {
wlr_log_errno(WLR_ERROR, "Failed to set gamma LUT on CRTC %"PRIu32,
crtc->id);
free(linear_lut);
return false;
}
free(linear_lut);
return true;
}
const struct wlr_drm_interface legacy_iface = {
.crtc_commit = legacy_crtc_commit,
};
|
