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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 |