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5e2607ae SG |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | /* | |
3 | * Implementation of a scene, a collection of text/image/menu items in an expo | |
4 | * | |
5 | * Copyright 2022 Google LLC | |
6 | * Written by Simon Glass <sjg@chromium.org> | |
7 | */ | |
8 | ||
9 | #include <common.h> | |
10 | #include <dm.h> | |
11 | #include <expo.h> | |
12 | #include <malloc.h> | |
13 | #include <mapmem.h> | |
14 | #include <video.h> | |
15 | #include <video_console.h> | |
16 | #include <linux/input.h> | |
17 | #include "scene_internal.h" | |
18 | ||
19 | uint resolve_id(struct expo *exp, uint id) | |
20 | { | |
21 | if (!id) | |
22 | id = exp->next_id++; | |
23 | else if (id >= exp->next_id) | |
24 | exp->next_id = id + 1; | |
25 | ||
26 | return id; | |
27 | } | |
28 | ||
29 | int scene_new(struct expo *exp, const char *name, uint id, struct scene **scnp) | |
30 | { | |
31 | struct scene *scn; | |
32 | ||
33 | scn = calloc(1, sizeof(struct scene)); | |
34 | if (!scn) | |
35 | return log_msg_ret("expo", -ENOMEM); | |
36 | scn->name = strdup(name); | |
37 | if (!scn->name) { | |
38 | free(scn); | |
39 | return log_msg_ret("name", -ENOMEM); | |
40 | } | |
41 | ||
42 | INIT_LIST_HEAD(&scn->obj_head); | |
43 | scn->id = resolve_id(exp, id); | |
44 | scn->expo = exp; | |
45 | list_add_tail(&scn->sibling, &exp->scene_head); | |
46 | ||
47 | *scnp = scn; | |
48 | ||
49 | return scn->id; | |
50 | } | |
51 | ||
52 | void scene_obj_destroy(struct scene_obj *obj) | |
53 | { | |
54 | if (obj->type == SCENEOBJT_MENU) | |
55 | scene_menu_destroy((struct scene_obj_menu *)obj); | |
56 | free(obj->name); | |
57 | free(obj); | |
58 | } | |
59 | ||
60 | void scene_destroy(struct scene *scn) | |
61 | { | |
62 | struct scene_obj *obj, *next; | |
63 | ||
64 | list_for_each_entry_safe(obj, next, &scn->obj_head, sibling) | |
65 | scene_obj_destroy(obj); | |
66 | ||
67 | free(scn->name); | |
68 | free(scn->title); | |
69 | free(scn); | |
70 | } | |
71 | ||
72 | int scene_title_set(struct scene *scn, const char *title) | |
73 | { | |
74 | free(scn->title); | |
75 | scn->title = strdup(title); | |
76 | if (!scn->title) | |
77 | return log_msg_ret("tit", -ENOMEM); | |
78 | ||
79 | return 0; | |
80 | } | |
81 | ||
82 | int scene_obj_count(struct scene *scn) | |
83 | { | |
84 | struct scene_obj *obj; | |
85 | int count = 0; | |
86 | ||
87 | list_for_each_entry(obj, &scn->obj_head, sibling) | |
88 | count++; | |
89 | ||
90 | return count; | |
91 | } | |
92 | ||
93 | void *scene_obj_find(struct scene *scn, uint id, enum scene_obj_t type) | |
94 | { | |
95 | struct scene_obj *obj; | |
96 | ||
97 | list_for_each_entry(obj, &scn->obj_head, sibling) { | |
98 | if (obj->id == id && | |
99 | (type == SCENEOBJT_NONE || obj->type == type)) | |
100 | return obj; | |
101 | } | |
102 | ||
103 | return NULL; | |
104 | } | |
105 | ||
106 | int scene_obj_add(struct scene *scn, const char *name, uint id, | |
107 | enum scene_obj_t type, uint size, struct scene_obj **objp) | |
108 | { | |
109 | struct scene_obj *obj; | |
110 | ||
111 | obj = calloc(1, size); | |
112 | if (!obj) | |
113 | return log_msg_ret("obj", -ENOMEM); | |
114 | obj->name = strdup(name); | |
115 | if (!obj->name) { | |
116 | free(obj); | |
117 | return log_msg_ret("name", -ENOMEM); | |
118 | } | |
119 | ||
120 | obj->id = resolve_id(scn->expo, id); | |
121 | obj->scene = scn; | |
122 | obj->type = type; | |
123 | list_add_tail(&obj->sibling, &scn->obj_head); | |
124 | *objp = obj; | |
125 | ||
126 | return obj->id; | |
127 | } | |
128 | ||
129 | int scene_img(struct scene *scn, const char *name, uint id, char *data, | |
130 | struct scene_obj_img **imgp) | |
131 | { | |
132 | struct scene_obj_img *img; | |
133 | int ret; | |
134 | ||
135 | ret = scene_obj_add(scn, name, id, SCENEOBJT_IMAGE, | |
136 | sizeof(struct scene_obj_img), | |
137 | (struct scene_obj **)&img); | |
138 | if (ret < 0) | |
139 | return log_msg_ret("obj", -ENOMEM); | |
140 | ||
141 | img->data = data; | |
142 | ||
143 | if (imgp) | |
144 | *imgp = img; | |
145 | ||
146 | return img->obj.id; | |
147 | } | |
148 | ||
149 | int scene_txt(struct scene *scn, const char *name, uint id, uint str_id, | |
150 | struct scene_obj_txt **txtp) | |
151 | { | |
152 | struct scene_obj_txt *txt; | |
153 | int ret; | |
154 | ||
155 | ret = scene_obj_add(scn, name, id, SCENEOBJT_TEXT, | |
156 | sizeof(struct scene_obj_txt), | |
157 | (struct scene_obj **)&txt); | |
158 | if (ret < 0) | |
159 | return log_msg_ret("obj", -ENOMEM); | |
160 | ||
161 | txt->str_id = str_id; | |
162 | ||
163 | if (txtp) | |
164 | *txtp = txt; | |
165 | ||
166 | return txt->obj.id; | |
167 | } | |
168 | ||
169 | int scene_txt_str(struct scene *scn, const char *name, uint id, uint str_id, | |
170 | const char *str, struct scene_obj_txt **txtp) | |
171 | { | |
172 | struct scene_obj_txt *txt; | |
173 | int ret; | |
174 | ||
175 | ret = expo_str(scn->expo, name, str_id, str); | |
176 | if (ret < 0) | |
177 | return log_msg_ret("str", ret); | |
178 | else if (ret != str_id) | |
179 | return log_msg_ret("id", -EEXIST); | |
180 | ||
181 | ret = scene_obj_add(scn, name, id, SCENEOBJT_TEXT, | |
182 | sizeof(struct scene_obj_txt), | |
183 | (struct scene_obj **)&txt); | |
184 | if (ret < 0) | |
185 | return log_msg_ret("obj", -ENOMEM); | |
186 | ||
187 | txt->str_id = str_id; | |
188 | ||
189 | if (txtp) | |
190 | *txtp = txt; | |
191 | ||
192 | return txt->obj.id; | |
193 | } | |
194 | ||
195 | int scene_txt_set_font(struct scene *scn, uint id, const char *font_name, | |
196 | uint font_size) | |
197 | { | |
198 | struct scene_obj_txt *txt; | |
199 | ||
200 | txt = scene_obj_find(scn, id, SCENEOBJT_TEXT); | |
201 | if (!txt) | |
202 | return log_msg_ret("find", -ENOENT); | |
203 | txt->font_name = font_name; | |
204 | txt->font_size = font_size; | |
205 | ||
206 | return 0; | |
207 | } | |
208 | ||
209 | int scene_obj_set_pos(struct scene *scn, uint id, int x, int y) | |
210 | { | |
211 | struct scene_obj *obj; | |
212 | ||
213 | obj = scene_obj_find(scn, id, SCENEOBJT_NONE); | |
214 | if (!obj) | |
215 | return log_msg_ret("find", -ENOENT); | |
216 | obj->x = x; | |
217 | obj->y = y; | |
218 | if (obj->type == SCENEOBJT_MENU) | |
219 | scene_menu_arrange(scn, (struct scene_obj_menu *)obj); | |
220 | ||
221 | return 0; | |
222 | } | |
223 | ||
224 | int scene_obj_set_hide(struct scene *scn, uint id, bool hide) | |
225 | { | |
226 | struct scene_obj *obj; | |
227 | ||
228 | obj = scene_obj_find(scn, id, SCENEOBJT_NONE); | |
229 | if (!obj) | |
230 | return log_msg_ret("find", -ENOENT); | |
231 | obj->hide = hide; | |
232 | ||
233 | return 0; | |
234 | } | |
235 | ||
236 | int scene_obj_get_hw(struct scene *scn, uint id, int *widthp) | |
237 | { | |
238 | struct scene_obj *obj; | |
239 | ||
240 | obj = scene_obj_find(scn, id, SCENEOBJT_NONE); | |
241 | if (!obj) | |
242 | return log_msg_ret("find", -ENOENT); | |
243 | ||
244 | switch (obj->type) { | |
245 | case SCENEOBJT_NONE: | |
246 | case SCENEOBJT_MENU: | |
247 | break; | |
248 | case SCENEOBJT_IMAGE: { | |
249 | struct scene_obj_img *img = (struct scene_obj_img *)obj; | |
250 | ulong width, height; | |
251 | uint bpix; | |
252 | ||
253 | video_bmp_get_info(img->data, &width, &height, &bpix); | |
254 | if (widthp) | |
255 | *widthp = width; | |
256 | return height; | |
257 | } | |
258 | case SCENEOBJT_TEXT: { | |
259 | struct scene_obj_txt *txt = (struct scene_obj_txt *)obj; | |
260 | struct expo *exp = scn->expo; | |
261 | ||
262 | if (widthp) | |
263 | *widthp = 16; /* fake value for now */ | |
264 | if (txt->font_size) | |
265 | return txt->font_size; | |
266 | if (exp->display) | |
267 | return video_default_font_height(exp->display); | |
268 | ||
269 | /* use a sensible default */ | |
270 | return 16; | |
271 | } | |
272 | } | |
273 | ||
274 | return 0; | |
275 | } | |
276 | ||
277 | /** | |
278 | * scene_obj_render() - Render an object | |
279 | * | |
280 | */ | |
281 | static int scene_obj_render(struct scene_obj *obj, bool text_mode) | |
282 | { | |
283 | struct scene *scn = obj->scene; | |
284 | struct expo *exp = scn->expo; | |
285 | struct udevice *cons, *dev = exp->display; | |
286 | int x, y, ret; | |
287 | ||
288 | cons = NULL; | |
289 | if (!text_mode) { | |
290 | ret = device_find_first_child_by_uclass(dev, | |
291 | UCLASS_VIDEO_CONSOLE, | |
292 | &cons); | |
293 | } | |
294 | ||
295 | x = obj->x; | |
296 | y = obj->y; | |
297 | ||
298 | switch (obj->type) { | |
299 | case SCENEOBJT_NONE: | |
300 | break; | |
301 | case SCENEOBJT_IMAGE: { | |
302 | struct scene_obj_img *img = (struct scene_obj_img *)obj; | |
303 | ||
304 | if (!cons) | |
305 | return -ENOTSUPP; | |
306 | ret = video_bmp_display(dev, map_to_sysmem(img->data), x, y, | |
307 | true); | |
308 | if (ret < 0) | |
309 | return log_msg_ret("img", ret); | |
310 | break; | |
311 | } | |
312 | case SCENEOBJT_TEXT: { | |
313 | struct scene_obj_txt *txt = (struct scene_obj_txt *)obj; | |
314 | const char *str; | |
315 | ||
316 | if (!cons) | |
317 | return -ENOTSUPP; | |
318 | ||
319 | if (txt->font_name || txt->font_size) { | |
320 | ret = vidconsole_select_font(cons, | |
321 | txt->font_name, | |
322 | txt->font_size); | |
323 | } else { | |
324 | ret = vidconsole_select_font(cons, NULL, 0); | |
325 | } | |
326 | if (ret && ret != -ENOSYS) | |
327 | return log_msg_ret("font", ret); | |
328 | vidconsole_set_cursor_pos(cons, x, y); | |
329 | str = expo_get_str(exp, txt->str_id); | |
330 | if (str) | |
331 | vidconsole_put_string(cons, str); | |
332 | break; | |
333 | } | |
334 | case SCENEOBJT_MENU: { | |
335 | struct scene_obj_menu *menu = (struct scene_obj_menu *)obj; | |
336 | /* | |
337 | * With a vidconsole, the text and item pointer are rendered as | |
338 | * normal objects so we don't need to do anything here. The menu | |
339 | * simply controls where they are positioned. | |
340 | */ | |
341 | if (cons) | |
342 | return -ENOTSUPP; | |
343 | ||
344 | ret = scene_menu_display(menu); | |
345 | if (ret < 0) | |
346 | return log_msg_ret("img", ret); | |
347 | ||
348 | break; | |
349 | } | |
350 | } | |
351 | ||
352 | return 0; | |
353 | } | |
354 | ||
355 | int scene_arrange(struct scene *scn) | |
356 | { | |
357 | struct scene_obj *obj; | |
358 | int ret; | |
359 | ||
360 | list_for_each_entry(obj, &scn->obj_head, sibling) { | |
361 | if (obj->type == SCENEOBJT_MENU) { | |
362 | struct scene_obj_menu *menu; | |
363 | ||
364 | menu = (struct scene_obj_menu *)obj, | |
365 | ret = scene_menu_arrange(scn, menu); | |
366 | if (ret) | |
367 | return log_msg_ret("arr", ret); | |
368 | } | |
369 | } | |
370 | ||
371 | return 0; | |
372 | } | |
373 | ||
374 | int scene_render(struct scene *scn) | |
375 | { | |
376 | struct expo *exp = scn->expo; | |
377 | struct scene_obj *obj; | |
378 | int ret; | |
379 | ||
380 | list_for_each_entry(obj, &scn->obj_head, sibling) { | |
381 | if (!obj->hide) { | |
382 | ret = scene_obj_render(obj, exp->text_mode); | |
383 | if (ret && ret != -ENOTSUPP) | |
384 | return log_msg_ret("ren", ret); | |
385 | } | |
386 | } | |
387 | ||
388 | return 0; | |
389 | } | |
390 | ||
391 | int scene_send_key(struct scene *scn, int key, struct expo_action *event) | |
392 | { | |
393 | struct scene_obj *obj; | |
394 | int ret; | |
395 | ||
396 | list_for_each_entry(obj, &scn->obj_head, sibling) { | |
397 | if (obj->type == SCENEOBJT_MENU) { | |
398 | struct scene_obj_menu *menu; | |
399 | ||
400 | menu = (struct scene_obj_menu *)obj, | |
401 | ret = scene_menu_send_key(scn, menu, key, event); | |
402 | if (ret) | |
403 | return log_msg_ret("key", ret); | |
404 | ||
405 | /* only allow one menu */ | |
406 | ret = scene_menu_arrange(scn, menu); | |
407 | if (ret) | |
408 | return log_msg_ret("arr", ret); | |
409 | break; | |
410 | } | |
411 | } | |
412 | ||
413 | return 0; | |
414 | } |