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1 | #include <assert.h> | ||
2 | #include <errno.h> | ||
3 | #include <stdlib.h> | ||
4 | #include <string.h> | ||
5 | #include <xf86drm.h> | ||
6 | #include <sys/types.h> | ||
7 | #include "private.h" | ||
8 | |||
9 | struct liftoff_layer * | ||
10 | 140 | liftoff_layer_create(struct liftoff_output *output) | |
11 | { | ||
12 | struct liftoff_layer *layer; | ||
13 | size_t i; | ||
14 | |||
15 | 140 | layer = calloc(1, sizeof(*layer)); | |
16 |
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140 | if (layer == NULL) { |
17 | ✗ | liftoff_log_errno(LIFTOFF_ERROR, "calloc"); | |
18 | ✗ | return NULL; | |
19 | } | ||
20 | 140 | layer->output = output; | |
21 | 140 | layer->candidate_planes = calloc(output->device->planes_cap, | |
22 | sizeof(layer->candidate_planes[0])); | ||
23 |
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140 | if (layer->candidate_planes == NULL) { |
24 | ✗ | liftoff_log_errno(LIFTOFF_ERROR, "calloc"); | |
25 | ✗ | free(layer); | |
26 | ✗ | return NULL; | |
27 | } | ||
28 |
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1960 | for (i = 0; i < LIFTOFF_PROP_LAST; i++) { |
29 | 1820 | layer->core_props[i] = -1; | |
30 | } | ||
31 | 140 | liftoff_list_insert(output->layers.prev, &layer->link); | |
32 | 140 | output->layers_changed = true; | |
33 | 140 | return layer; | |
34 | } | ||
35 | |||
36 | void | ||
37 | 1 | liftoff_layer_destroy(struct liftoff_layer *layer) | |
38 | { | ||
39 |
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1 | if (layer == NULL) { |
40 | ✗ | return; | |
41 | } | ||
42 | |||
43 | 1 | layer->output->layers_changed = true; | |
44 |
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1 | if (layer->plane != NULL) { |
45 | ✗ | layer->plane->layer = NULL; | |
46 | } | ||
47 |
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1 | if (layer->output->composition_layer == layer) { |
48 | ✗ | layer->output->composition_layer = NULL; | |
49 | } | ||
50 | 1 | free(layer->props); | |
51 | 1 | free(layer->candidate_planes); | |
52 | 1 | liftoff_list_remove(&layer->link); | |
53 | 1 | free(layer); | |
54 | } | ||
55 | |||
56 | struct liftoff_layer_property * | ||
57 | 40600 | layer_get_core_property(struct liftoff_layer *layer, enum liftoff_core_property prop) | |
58 | { | ||
59 | ssize_t i; | ||
60 | |||
61 | 40600 | i = layer->core_props[prop]; | |
62 |
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40600 | if (i < 0) { |
63 | 11353 | return NULL; | |
64 | } | ||
65 | 29247 | return &layer->props[i]; | |
66 | } | ||
67 | |||
68 | struct liftoff_layer_property * | ||
69 | 2558 | layer_get_property(struct liftoff_layer *layer, const char *name) | |
70 | { | ||
71 | ssize_t core_prop_idx; | ||
72 | size_t i; | ||
73 | |||
74 | 2558 | core_prop_idx = core_property_index(name); | |
75 |
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2558 | if (core_prop_idx >= 0) { |
76 | 2545 | return layer_get_core_property(layer, core_prop_idx); | |
77 | } | ||
78 | |||
79 |
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130 | for (i = 0; i < layer->props_len; i++) { |
80 |
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122 | if (strcmp(layer->props[i].name, name) == 0) { |
81 | 5 | return &layer->props[i]; | |
82 | } | ||
83 | } | ||
84 | 8 | return NULL; | |
85 | } | ||
86 | |||
87 | int | ||
88 | 2557 | liftoff_layer_set_property(struct liftoff_layer *layer, const char *name, | |
89 | uint64_t value) | ||
90 | { | ||
91 | struct liftoff_layer_property *props; | ||
92 | struct liftoff_layer_property *prop; | ||
93 | size_t i; | ||
94 | |||
95 |
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2557 | if (strcmp(name, "CRTC_ID") == 0) { |
96 | ✗ | liftoff_log(LIFTOFF_ERROR, | |
97 | "refusing to set a layer's CRTC_ID"); | ||
98 | ✗ | return -EINVAL; | |
99 | } | ||
100 | |||
101 | 2557 | prop = layer_get_property(layer, name); | |
102 |
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2557 | if (prop == NULL) { |
103 | 1325 | props = realloc(layer->props, | |
104 | 1325 | (layer->props_len + 1) * sizeof(props[0])); | |
105 |
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1325 | if (props == NULL) { |
106 | ✗ | liftoff_log_errno(LIFTOFF_ERROR, "realloc"); | |
107 | ✗ | return -ENOMEM; | |
108 | } | ||
109 | 1325 | layer->props = props; | |
110 | 1325 | layer->props_len++; | |
111 | |||
112 | 1325 | i = layer->props_len - 1; | |
113 | 1325 | prop = &layer->props[i]; | |
114 | 1325 | *prop = (struct liftoff_layer_property){0}; | |
115 | 1325 | strncpy(prop->name, name, sizeof(prop->name) - 1); | |
116 | 1325 | prop->core_index = core_property_index(name); | |
117 | |||
118 | 1325 | layer->changed = true; | |
119 | |||
120 |
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1325 | if (prop->core_index >= 0) { |
121 | 1317 | layer->core_props[prop->core_index] = (ssize_t)i; | |
122 | } | ||
123 | } | ||
124 | |||
125 | 2557 | prop->value = value; | |
126 | |||
127 |
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2557 | if (prop->core_index == LIFTOFF_PROP_FB_ID && layer->force_composition) { |
128 | ✗ | layer->force_composition = false; | |
129 | ✗ | layer->changed = true; | |
130 | } | ||
131 | |||
132 | 2557 | return 0; | |
133 | } | ||
134 | |||
135 | void | ||
136 | 1 | liftoff_layer_unset_property(struct liftoff_layer *layer, const char *name) | |
137 | { | ||
138 | struct liftoff_layer_property *prop, *last; | ||
139 | |||
140 | 1 | prop = layer_get_property(layer, name); | |
141 |
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1 | if (prop == NULL) { |
142 | ✗ | return; | |
143 | } | ||
144 | |||
145 |
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1 | if (prop->core_index >= 0) { |
146 | ✗ | layer->core_props[prop->core_index] = -1; | |
147 | } | ||
148 | |||
149 | 1 | last = &layer->props[layer->props_len - 1]; | |
150 |
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1 | if (prop != last) { |
151 | 1 | *prop = *last; | |
152 |
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1 | if (last->core_index >= 0) { |
153 | 1 | layer->core_props[last->core_index] = prop - layer->props; | |
154 | } | ||
155 | } | ||
156 | 1 | *last = (struct liftoff_layer_property){0}; | |
157 | 1 | layer->props_len--; | |
158 | |||
159 | 1 | layer->changed = true; | |
160 | } | ||
161 | |||
162 | void | ||
163 | 1 | liftoff_layer_set_fb_composited(struct liftoff_layer *layer) | |
164 | { | ||
165 |
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1 | if (layer->force_composition) { |
166 | ✗ | return; | |
167 | } | ||
168 | |||
169 | 1 | liftoff_layer_set_property(layer, "FB_ID", 0); | |
170 | |||
171 | 1 | layer->force_composition = true; | |
172 | 1 | layer->changed = true; | |
173 | } | ||
174 | |||
175 | struct liftoff_plane * | ||
176 | 73 | liftoff_layer_get_plane(struct liftoff_layer *layer) | |
177 | { | ||
178 | 73 | return layer->plane; | |
179 | } | ||
180 | |||
181 | bool | ||
182 | 49 | liftoff_layer_needs_composition(struct liftoff_layer *layer) | |
183 | { | ||
184 |
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49 | if (!layer_is_visible(layer)) { |
185 | 4 | return false; | |
186 | } | ||
187 | 45 | return layer->plane == NULL; | |
188 | } | ||
189 | |||
190 | void | ||
191 | 3571 | layer_get_rect(struct liftoff_layer *layer, struct liftoff_rect *rect) | |
192 | { | ||
193 | struct liftoff_layer_property *x_prop, *y_prop, *w_prop, *h_prop; | ||
194 | |||
195 | 3571 | x_prop = layer_get_core_property(layer, LIFTOFF_PROP_CRTC_X); | |
196 | 3571 | y_prop = layer_get_core_property(layer, LIFTOFF_PROP_CRTC_Y); | |
197 | 3571 | w_prop = layer_get_core_property(layer, LIFTOFF_PROP_CRTC_W); | |
198 | 3571 | h_prop = layer_get_core_property(layer, LIFTOFF_PROP_CRTC_H); | |
199 | |||
200 |
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3571 | rect->x = x_prop != NULL ? x_prop->value : 0; |
201 |
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3571 | rect->y = y_prop != NULL ? y_prop->value : 0; |
202 |
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3571 | rect->width = w_prop != NULL ? w_prop->value : 0; |
203 |
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3571 | rect->height = h_prop != NULL ? h_prop->value : 0; |
204 | 3571 | } | |
205 | |||
206 | void | ||
207 | 5 | layer_get_prev_rect(struct liftoff_layer *layer, struct liftoff_rect *rect) | |
208 | { | ||
209 | struct liftoff_layer_property *x_prop, *y_prop, *w_prop, *h_prop; | ||
210 | |||
211 | 5 | x_prop = layer_get_core_property(layer, LIFTOFF_PROP_CRTC_X); | |
212 | 5 | y_prop = layer_get_core_property(layer, LIFTOFF_PROP_CRTC_Y); | |
213 | 5 | w_prop = layer_get_core_property(layer, LIFTOFF_PROP_CRTC_W); | |
214 | 5 | h_prop = layer_get_core_property(layer, LIFTOFF_PROP_CRTC_H); | |
215 | |||
216 |
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5 | rect->x = x_prop != NULL ? x_prop->prev_value : 0; |
217 |
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5 | rect->y = y_prop != NULL ? y_prop->prev_value : 0; |
218 |
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5 | rect->width = w_prop != NULL ? w_prop->prev_value : 0; |
219 |
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5 | rect->height = h_prop != NULL ? h_prop -> prev_value : 0; |
220 | 5 | } | |
221 | |||
222 | bool | ||
223 | 1789 | rect_intersects(struct liftoff_rect *ra, struct liftoff_rect *rb) | |
224 | { | ||
225 |
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1758 | return ra->x < rb->x + rb->width && ra->y < rb->y + rb->height && |
226 |
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3547 | ra->x + ra->width > rb->x && ra->y + ra->height > rb->y; |
227 | } | ||
228 | |||
229 | bool | ||
230 | 1791 | layer_intersects(struct liftoff_layer *a, struct liftoff_layer *b) | |
231 | { | ||
232 | struct liftoff_rect ra, rb; | ||
233 | |||
234 |
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1791 | if (!layer_is_visible(a) || !layer_is_visible(b)) { |
235 | 8 | return false; | |
236 | } | ||
237 | |||
238 | 1783 | layer_get_rect(a, &ra); | |
239 | 1783 | layer_get_rect(b, &rb); | |
240 | |||
241 | 1783 | return rect_intersects(&ra, &rb); | |
242 | } | ||
243 | |||
244 | void | ||
245 | 2600 | layer_mark_clean(struct liftoff_layer *layer) | |
246 | { | ||
247 | size_t i; | ||
248 | |||
249 | 2600 | layer->changed = false; | |
250 | 2600 | layer->prev_fb_info = layer->fb_info; | |
251 | |||
252 |
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26083 | for (i = 0; i < layer->props_len; i++) { |
253 | 23483 | layer->props[i].prev_value = layer->props[i].value; | |
254 | } | ||
255 | 2600 | } | |
256 | |||
257 | static void | ||
258 | 40 | log_priority(struct liftoff_layer *layer) | |
259 | { | ||
260 |
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40 | if (layer->current_priority == layer->pending_priority) { |
261 | 35 | return; | |
262 | } | ||
263 | |||
264 | 5 | liftoff_log(LIFTOFF_DEBUG, "Layer %p priority change: %d -> %d", | |
265 | (void *)layer, layer->current_priority, | ||
266 | layer->pending_priority); | ||
267 | } | ||
268 | |||
269 | void | ||
270 | 2600 | layer_update_priority(struct liftoff_layer *layer, bool make_current) | |
271 | { | ||
272 | struct liftoff_layer_property *prop; | ||
273 | |||
274 | /* TODO: also bump priority when updating other properties */ | ||
275 | 2600 | prop = layer_get_core_property(layer, LIFTOFF_PROP_FB_ID); | |
276 |
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2600 | if (prop != NULL && prop->prev_value != prop->value) { |
277 | 1337 | layer->pending_priority++; | |
278 | } | ||
279 | |||
280 |
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2600 | if (make_current) { |
281 | 40 | log_priority(layer); | |
282 | 40 | layer->current_priority = layer->pending_priority; | |
283 | 40 | layer->pending_priority = 0; | |
284 | } | ||
285 | 2600 | } | |
286 | |||
287 | bool | ||
288 | 7309 | layer_has_fb(struct liftoff_layer *layer) | |
289 | { | ||
290 | struct liftoff_layer_property *fb_id_prop; | ||
291 | |||
292 | 7309 | fb_id_prop = layer_get_core_property(layer, LIFTOFF_PROP_FB_ID); | |
293 |
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7309 | return fb_id_prop != NULL && fb_id_prop->value != 0; |
294 | } | ||
295 | |||
296 | bool | ||
297 | 7209 | layer_is_visible(struct liftoff_layer *layer) | |
298 | { | ||
299 | struct liftoff_layer_property *alpha_prop; | ||
300 | |||
301 | 7209 | alpha_prop = layer_get_core_property(layer, LIFTOFF_PROP_ALPHA); | |
302 |
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7209 | if (alpha_prop != NULL && alpha_prop->value == 0) { |
303 | 26 | return false; /* fully transparent */ | |
304 | } | ||
305 | |||
306 |
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7183 | if (layer->force_composition) { |
307 | 55 | return true; | |
308 | } else { | ||
309 | 7128 | return layer_has_fb(layer); | |
310 | } | ||
311 | } | ||
312 | |||
313 | int | ||
314 | 2600 | layer_cache_fb_info(struct liftoff_layer *layer) | |
315 | { | ||
316 | struct liftoff_layer_property *fb_id_prop; | ||
317 | drmModeFB2 *fb_info; | ||
318 | size_t i, j, num_planes; | ||
319 | int ret; | ||
320 | |||
321 | 2600 | fb_id_prop = layer_get_core_property(layer, LIFTOFF_PROP_FB_ID); | |
322 |
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2600 | if (fb_id_prop == NULL || fb_id_prop->value == 0) { |
323 | 7 | layer->fb_info = (drmModeFB2){0}; | |
324 | 7 | return 0; | |
325 | } | ||
326 | |||
327 |
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2593 | if (layer->fb_info.fb_id == fb_id_prop->value) { |
328 | ✗ | return 0; | |
329 | } | ||
330 | |||
331 | 2593 | fb_info = drmModeGetFB2(layer->output->device->drm_fd, fb_id_prop->value); | |
332 |
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2593 | if (fb_info == NULL) { |
333 |
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2587 | if (errno == EINVAL) { |
334 | 2587 | return 0; /* old kernel */ | |
335 | } | ||
336 | ✗ | return -errno; | |
337 | } | ||
338 | |||
339 | /* drmModeGetFB2() always creates new GEM handles -- close these, we | ||
340 | * won't use them and we don't want to leak them */ | ||
341 | 6 | num_planes = sizeof(fb_info->handles) / sizeof(fb_info->handles[0]); | |
342 |
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30 | for (i = 0; i < num_planes; i++) { |
343 |
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24 | if (fb_info->handles[i] == 0) { |
344 | 24 | continue; | |
345 | } | ||
346 | |||
347 | ✗ | ret = drmCloseBufferHandle(layer->output->device->drm_fd, | |
348 | fb_info->handles[i]); | ||
349 | ✗ | if (ret != 0) { | |
350 | ✗ | liftoff_log_errno(LIFTOFF_ERROR, "drmCloseBufferHandle"); | |
351 | ✗ | continue; | |
352 | } | ||
353 | |||
354 | /* Make sure we don't double-close a handle */ | ||
355 | ✗ | for (j = i + 1; j < num_planes; j++) { | |
356 | ✗ | if (fb_info->handles[j] == fb_info->handles[i]) { | |
357 | ✗ | fb_info->handles[j] = 0; | |
358 | } | ||
359 | } | ||
360 | ✗ | fb_info->handles[i] = 0; | |
361 | } | ||
362 | |||
363 | 6 | layer->fb_info = *fb_info; | |
364 | 6 | drmModeFreeFB2(fb_info); | |
365 | 6 | return 0; | |
366 | } | ||
367 | |||
368 | bool | ||
369 | 2 | liftoff_layer_is_candidate_plane(struct liftoff_layer *layer, | |
370 | struct liftoff_plane *plane) | ||
371 | { | ||
372 | size_t i; | ||
373 | |||
374 |
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4 | for (i = 0; i < layer->output->device->planes_cap; i++) { |
375 |
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3 | if (layer->candidate_planes[i] == plane->id) { |
376 | 1 | return true; | |
377 | } | ||
378 | } | ||
379 | |||
380 | 1 | return false; | |
381 | } | ||
382 | |||
383 | void | ||
384 | 344 | layer_add_candidate_plane(struct liftoff_layer *layer, | |
385 | struct liftoff_plane *plane) | ||
386 | { | ||
387 | size_t i; | ||
388 | 344 | ssize_t empty_slot = -1; | |
389 | |||
390 |
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1255 | for (i = 0; i < layer->output->device->planes_cap; i++) { |
391 |
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949 | if (layer->candidate_planes[i] == plane->id) { |
392 | 38 | return; | |
393 | } | ||
394 |
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911 | if (empty_slot < 0 && layer->candidate_planes[i] == 0) { |
395 | 306 | empty_slot = (ssize_t)i; | |
396 | } | ||
397 | } | ||
398 | |||
399 |
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306 | assert(empty_slot >= 0); |
400 | 306 | layer->candidate_planes[empty_slot] = plane->id; | |
401 | } | ||
402 | |||
403 | void | ||
404 | 186 | layer_reset_candidate_planes(struct liftoff_layer *layer) | |
405 | { | ||
406 | 186 | memset(layer->candidate_planes, 0, | |
407 | 186 | sizeof(layer->candidate_planes[0]) * layer->output->device->planes_cap); | |
408 | 186 | } | |
409 |