1 /*************************************************************************/
2 /*  editor_preview_plugins.cpp                                           */
3 /*************************************************************************/
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30 
31 #include "editor_preview_plugins.h"
32 
33 #include "core/io/file_access_memory.h"
34 #include "core/io/resource_loader.h"
35 #include "core/os/os.h"
36 #include "editor/editor_node.h"
37 #include "editor/editor_scale.h"
38 #include "editor/editor_settings.h"
39 #include "scene/resources/bit_map.h"
40 #include "scene/resources/dynamic_font.h"
41 #include "scene/resources/material.h"
42 #include "scene/resources/mesh.h"
43 #include "servers/audio/audio_stream.h"
44 
post_process_preview(Ref<Image> p_image)45 void post_process_preview(Ref<Image> p_image) {
46 
47 	if (p_image->get_format() != Image::FORMAT_RGBA8)
48 		p_image->convert(Image::FORMAT_RGBA8);
49 
50 	p_image->lock();
51 
52 	const int w = p_image->get_width();
53 	const int h = p_image->get_height();
54 
55 	const int r = MIN(w, h) / 32;
56 	const int r2 = r * r;
57 	Color transparent = Color(0, 0, 0, 0);
58 
59 	for (int i = 0; i < r; i++) {
60 		for (int j = 0; j < r; j++) {
61 			int dx = i - r;
62 			int dy = j - r;
63 			if (dx * dx + dy * dy > r2) {
64 				p_image->set_pixel(i, j, transparent);
65 				p_image->set_pixel(w - 1 - i, j, transparent);
66 				p_image->set_pixel(w - 1 - i, h - 1 - j, transparent);
67 				p_image->set_pixel(i, h - 1 - j, transparent);
68 			} else {
69 				break;
70 			}
71 		}
72 	}
73 
74 	p_image->unlock();
75 }
76 
handles(const String & p_type) const77 bool EditorTexturePreviewPlugin::handles(const String &p_type) const {
78 
79 	return ClassDB::is_parent_class(p_type, "Texture");
80 }
81 
generate_small_preview_automatically() const82 bool EditorTexturePreviewPlugin::generate_small_preview_automatically() const {
83 	return true;
84 }
85 
generate(const RES & p_from,const Size2 & p_size) const86 Ref<Texture> EditorTexturePreviewPlugin::generate(const RES &p_from, const Size2 &p_size) const {
87 
88 	Ref<Image> img;
89 	Ref<AtlasTexture> atex = p_from;
90 	Ref<LargeTexture> ltex = p_from;
91 	if (atex.is_valid()) {
92 		Ref<Texture> tex = atex->get_atlas();
93 		if (!tex.is_valid()) {
94 			return Ref<Texture>();
95 		}
96 
97 		Ref<Image> atlas = tex->get_data();
98 		if (!atlas.is_valid()) {
99 			return Ref<Texture>();
100 		}
101 
102 		img = atlas->get_rect(atex->get_region());
103 	} else if (ltex.is_valid()) {
104 		img = ltex->to_image();
105 	} else {
106 		Ref<Texture> tex = p_from;
107 		if (tex.is_valid()) {
108 			img = tex->get_data();
109 			if (img.is_valid()) {
110 				img = img->duplicate();
111 			}
112 		}
113 	}
114 
115 	if (img.is_null() || img->empty())
116 		return Ref<Texture>();
117 
118 	img->clear_mipmaps();
119 
120 	if (img->is_compressed()) {
121 		if (img->decompress() != OK)
122 			return Ref<Texture>();
123 	} else if (img->get_format() != Image::FORMAT_RGB8 && img->get_format() != Image::FORMAT_RGBA8) {
124 		img->convert(Image::FORMAT_RGBA8);
125 	}
126 
127 	Vector2 new_size = img->get_size();
128 	if (new_size.x > p_size.x) {
129 		new_size = Vector2(p_size.x, new_size.y * p_size.x / new_size.x);
130 	}
131 	if (new_size.y > p_size.y) {
132 		new_size = Vector2(new_size.x * p_size.y / new_size.y, p_size.y);
133 	}
134 	Vector2i new_size_i(MAX(1, (int)new_size.x), MAX(1, (int)new_size.y));
135 	img->resize(new_size_i.x, new_size_i.y, Image::INTERPOLATE_CUBIC);
136 
137 	post_process_preview(img);
138 
139 	Ref<ImageTexture> ptex = Ref<ImageTexture>(memnew(ImageTexture));
140 
141 	ptex->create_from_image(img, 0);
142 	return ptex;
143 }
144 
EditorTexturePreviewPlugin()145 EditorTexturePreviewPlugin::EditorTexturePreviewPlugin() {
146 }
147 
148 ////////////////////////////////////////////////////////////////////////////
149 
handles(const String & p_type) const150 bool EditorImagePreviewPlugin::handles(const String &p_type) const {
151 
152 	return p_type == "Image";
153 }
154 
generate(const RES & p_from,const Size2 & p_size) const155 Ref<Texture> EditorImagePreviewPlugin::generate(const RES &p_from, const Size2 &p_size) const {
156 
157 	Ref<Image> img = p_from;
158 
159 	if (img.is_null() || img->empty())
160 		return Ref<Image>();
161 
162 	img = img->duplicate();
163 	img->clear_mipmaps();
164 
165 	if (img->is_compressed()) {
166 		if (img->decompress() != OK)
167 			return Ref<Image>();
168 	} else if (img->get_format() != Image::FORMAT_RGB8 && img->get_format() != Image::FORMAT_RGBA8) {
169 		img->convert(Image::FORMAT_RGBA8);
170 	}
171 
172 	Vector2 new_size = img->get_size();
173 	if (new_size.x > p_size.x) {
174 		new_size = Vector2(p_size.x, new_size.y * p_size.x / new_size.x);
175 	}
176 	if (new_size.y > p_size.y) {
177 		new_size = Vector2(new_size.x * p_size.y / new_size.y, p_size.y);
178 	}
179 	img->resize(new_size.x, new_size.y, Image::INTERPOLATE_CUBIC);
180 
181 	post_process_preview(img);
182 
183 	Ref<ImageTexture> ptex;
184 	ptex.instance();
185 
186 	ptex->create_from_image(img, 0);
187 	return ptex;
188 }
189 
EditorImagePreviewPlugin()190 EditorImagePreviewPlugin::EditorImagePreviewPlugin() {
191 }
192 
generate_small_preview_automatically() const193 bool EditorImagePreviewPlugin::generate_small_preview_automatically() const {
194 	return true;
195 }
196 ////////////////////////////////////////////////////////////////////////////
197 /////////////////////////////////////////////////
handles(const String & p_type) const198 bool EditorBitmapPreviewPlugin::handles(const String &p_type) const {
199 
200 	return ClassDB::is_parent_class(p_type, "BitMap");
201 }
202 
generate(const RES & p_from,const Size2 & p_size) const203 Ref<Texture> EditorBitmapPreviewPlugin::generate(const RES &p_from, const Size2 &p_size) const {
204 
205 	Ref<BitMap> bm = p_from;
206 
207 	if (bm->get_size() == Size2()) {
208 		return Ref<Texture>();
209 	}
210 
211 	PoolVector<uint8_t> data;
212 
213 	data.resize(bm->get_size().width * bm->get_size().height);
214 
215 	{
216 		PoolVector<uint8_t>::Write w = data.write();
217 
218 		for (int i = 0; i < bm->get_size().width; i++) {
219 			for (int j = 0; j < bm->get_size().height; j++) {
220 				if (bm->get_bit(Point2i(i, j))) {
221 					w[j * bm->get_size().width + i] = 255;
222 				} else {
223 					w[j * bm->get_size().width + i] = 0;
224 				}
225 			}
226 		}
227 	}
228 
229 	Ref<Image> img;
230 	img.instance();
231 	img->create(bm->get_size().width, bm->get_size().height, 0, Image::FORMAT_L8, data);
232 
233 	if (img->is_compressed()) {
234 		if (img->decompress() != OK)
235 			return Ref<Texture>();
236 	} else if (img->get_format() != Image::FORMAT_RGB8 && img->get_format() != Image::FORMAT_RGBA8) {
237 		img->convert(Image::FORMAT_RGBA8);
238 	}
239 
240 	Vector2 new_size = img->get_size();
241 	if (new_size.x > p_size.x) {
242 		new_size = Vector2(p_size.x, new_size.y * p_size.x / new_size.x);
243 	}
244 	if (new_size.y > p_size.y) {
245 		new_size = Vector2(new_size.x * p_size.y / new_size.y, p_size.y);
246 	}
247 	img->resize(new_size.x, new_size.y, Image::INTERPOLATE_CUBIC);
248 
249 	post_process_preview(img);
250 
251 	Ref<ImageTexture> ptex = Ref<ImageTexture>(memnew(ImageTexture));
252 
253 	ptex->create_from_image(img, 0);
254 	return ptex;
255 }
256 
generate_small_preview_automatically() const257 bool EditorBitmapPreviewPlugin::generate_small_preview_automatically() const {
258 	return true;
259 }
260 
EditorBitmapPreviewPlugin()261 EditorBitmapPreviewPlugin::EditorBitmapPreviewPlugin() {
262 }
263 
264 ///////////////////////////////////////////////////////////////////////////
265 
handles(const String & p_type) const266 bool EditorPackedScenePreviewPlugin::handles(const String &p_type) const {
267 
268 	return ClassDB::is_parent_class(p_type, "PackedScene");
269 }
generate(const RES & p_from,const Size2 & p_size) const270 Ref<Texture> EditorPackedScenePreviewPlugin::generate(const RES &p_from, const Size2 &p_size) const {
271 
272 	return generate_from_path(p_from->get_path(), p_size);
273 }
274 
generate_from_path(const String & p_path,const Size2 & p_size) const275 Ref<Texture> EditorPackedScenePreviewPlugin::generate_from_path(const String &p_path, const Size2 &p_size) const {
276 
277 	String temp_path = EditorSettings::get_singleton()->get_cache_dir();
278 	String cache_base = ProjectSettings::get_singleton()->globalize_path(p_path).md5_text();
279 	cache_base = temp_path.plus_file("resthumb-" + cache_base);
280 
281 	//does not have it, try to load a cached thumbnail
282 
283 	String path = cache_base + ".png";
284 
285 	if (!FileAccess::exists(path))
286 		return Ref<Texture>();
287 
288 	Ref<Image> img;
289 	img.instance();
290 	Error err = img->load(path);
291 	if (err == OK) {
292 
293 		Ref<ImageTexture> ptex = Ref<ImageTexture>(memnew(ImageTexture));
294 
295 		post_process_preview(img);
296 		ptex->create_from_image(img, 0);
297 		return ptex;
298 
299 	} else {
300 		return Ref<Texture>();
301 	}
302 }
303 
EditorPackedScenePreviewPlugin()304 EditorPackedScenePreviewPlugin::EditorPackedScenePreviewPlugin() {
305 }
306 
307 //////////////////////////////////////////////////////////////////
308 
_preview_done(const Variant & p_udata)309 void EditorMaterialPreviewPlugin::_preview_done(const Variant &p_udata) {
310 
311 	preview_done = true;
312 }
313 
_bind_methods()314 void EditorMaterialPreviewPlugin::_bind_methods() {
315 
316 	ClassDB::bind_method("_preview_done", &EditorMaterialPreviewPlugin::_preview_done);
317 }
318 
handles(const String & p_type) const319 bool EditorMaterialPreviewPlugin::handles(const String &p_type) const {
320 
321 	return ClassDB::is_parent_class(p_type, "Material"); //any material
322 }
323 
generate_small_preview_automatically() const324 bool EditorMaterialPreviewPlugin::generate_small_preview_automatically() const {
325 	return true;
326 }
327 
generate(const RES & p_from,const Size2 & p_size) const328 Ref<Texture> EditorMaterialPreviewPlugin::generate(const RES &p_from, const Size2 &p_size) const {
329 
330 	Ref<Material> material = p_from;
331 	ERR_FAIL_COND_V(material.is_null(), Ref<Texture>());
332 
333 	if (material->get_shader_mode() == Shader::MODE_SPATIAL) {
334 
335 		VS::get_singleton()->mesh_surface_set_material(sphere, 0, material->get_rid());
336 
337 		VS::get_singleton()->viewport_set_update_mode(viewport, VS::VIEWPORT_UPDATE_ONCE); //once used for capture
338 
339 		preview_done = false;
340 		VS::get_singleton()->request_frame_drawn_callback(const_cast<EditorMaterialPreviewPlugin *>(this), "_preview_done", Variant());
341 
342 		while (!preview_done) {
343 			OS::get_singleton()->delay_usec(10);
344 		}
345 
346 		Ref<Image> img = VS::get_singleton()->texture_get_data(viewport_texture);
347 		VS::get_singleton()->mesh_surface_set_material(sphere, 0, RID());
348 
349 		ERR_FAIL_COND_V(!img.is_valid(), Ref<ImageTexture>());
350 
351 		img->convert(Image::FORMAT_RGBA8);
352 		int thumbnail_size = MAX(p_size.x, p_size.y);
353 		img->resize(thumbnail_size, thumbnail_size, Image::INTERPOLATE_CUBIC);
354 		post_process_preview(img);
355 		Ref<ImageTexture> ptex = Ref<ImageTexture>(memnew(ImageTexture));
356 		ptex->create_from_image(img, 0);
357 		return ptex;
358 	}
359 
360 	return Ref<Texture>();
361 }
362 
EditorMaterialPreviewPlugin()363 EditorMaterialPreviewPlugin::EditorMaterialPreviewPlugin() {
364 
365 	scenario = VS::get_singleton()->scenario_create();
366 
367 	viewport = VS::get_singleton()->viewport_create();
368 	VS::get_singleton()->viewport_set_update_mode(viewport, VS::VIEWPORT_UPDATE_DISABLED);
369 	VS::get_singleton()->viewport_set_scenario(viewport, scenario);
370 	VS::get_singleton()->viewport_set_size(viewport, 128, 128);
371 	VS::get_singleton()->viewport_set_transparent_background(viewport, true);
372 	VS::get_singleton()->viewport_set_active(viewport, true);
373 	VS::get_singleton()->viewport_set_vflip(viewport, true);
374 	viewport_texture = VS::get_singleton()->viewport_get_texture(viewport);
375 
376 	camera = VS::get_singleton()->camera_create();
377 	VS::get_singleton()->viewport_attach_camera(viewport, camera);
378 	VS::get_singleton()->camera_set_transform(camera, Transform(Basis(), Vector3(0, 0, 3)));
379 	VS::get_singleton()->camera_set_perspective(camera, 45, 0.1, 10);
380 
381 	light = VS::get_singleton()->directional_light_create();
382 	light_instance = VS::get_singleton()->instance_create2(light, scenario);
383 	VS::get_singleton()->instance_set_transform(light_instance, Transform().looking_at(Vector3(-1, -1, -1), Vector3(0, 1, 0)));
384 
385 	light2 = VS::get_singleton()->directional_light_create();
386 	VS::get_singleton()->light_set_color(light2, Color(0.7, 0.7, 0.7));
387 	//VS::get_singleton()->light_set_color(light2, Color(0.7, 0.7, 0.7));
388 
389 	light_instance2 = VS::get_singleton()->instance_create2(light2, scenario);
390 
391 	VS::get_singleton()->instance_set_transform(light_instance2, Transform().looking_at(Vector3(0, 1, 0), Vector3(0, 0, 1)));
392 
393 	sphere = VS::get_singleton()->mesh_create();
394 	sphere_instance = VS::get_singleton()->instance_create2(sphere, scenario);
395 
396 	int lats = 32;
397 	int lons = 32;
398 	float radius = 1.0;
399 
400 	PoolVector<Vector3> vertices;
401 	PoolVector<Vector3> normals;
402 	PoolVector<Vector2> uvs;
403 	PoolVector<float> tangents;
404 	Basis tt = Basis(Vector3(0, 1, 0), Math_PI * 0.5);
405 
406 	for (int i = 1; i <= lats; i++) {
407 		double lat0 = Math_PI * (-0.5 + (double)(i - 1) / lats);
408 		double z0 = Math::sin(lat0);
409 		double zr0 = Math::cos(lat0);
410 
411 		double lat1 = Math_PI * (-0.5 + (double)i / lats);
412 		double z1 = Math::sin(lat1);
413 		double zr1 = Math::cos(lat1);
414 
415 		for (int j = lons; j >= 1; j--) {
416 
417 			double lng0 = 2 * Math_PI * (double)(j - 1) / lons;
418 			double x0 = Math::cos(lng0);
419 			double y0 = Math::sin(lng0);
420 
421 			double lng1 = 2 * Math_PI * (double)(j) / lons;
422 			double x1 = Math::cos(lng1);
423 			double y1 = Math::sin(lng1);
424 
425 			Vector3 v[4] = {
426 				Vector3(x1 * zr0, z0, y1 * zr0),
427 				Vector3(x1 * zr1, z1, y1 * zr1),
428 				Vector3(x0 * zr1, z1, y0 * zr1),
429 				Vector3(x0 * zr0, z0, y0 * zr0)
430 			};
431 
432 #define ADD_POINT(m_idx)                                                                       \
433 	normals.push_back(v[m_idx]);                                                               \
434 	vertices.push_back(v[m_idx] * radius);                                                     \
435 	{                                                                                          \
436 		Vector2 uv(Math::atan2(v[m_idx].x, v[m_idx].z), Math::atan2(-v[m_idx].y, v[m_idx].z)); \
437 		uv /= Math_PI;                                                                         \
438 		uv *= 4.0;                                                                             \
439 		uv = uv * 0.5 + Vector2(0.5, 0.5);                                                     \
440 		uvs.push_back(uv);                                                                     \
441 	}                                                                                          \
442 	{                                                                                          \
443 		Vector3 t = tt.xform(v[m_idx]);                                                        \
444 		tangents.push_back(t.x);                                                               \
445 		tangents.push_back(t.y);                                                               \
446 		tangents.push_back(t.z);                                                               \
447 		tangents.push_back(1.0);                                                               \
448 	}
449 
450 			ADD_POINT(0);
451 			ADD_POINT(1);
452 			ADD_POINT(2);
453 
454 			ADD_POINT(2);
455 			ADD_POINT(3);
456 			ADD_POINT(0);
457 		}
458 	}
459 
460 	Array arr;
461 	arr.resize(VS::ARRAY_MAX);
462 	arr[VS::ARRAY_VERTEX] = vertices;
463 	arr[VS::ARRAY_NORMAL] = normals;
464 	arr[VS::ARRAY_TANGENT] = tangents;
465 	arr[VS::ARRAY_TEX_UV] = uvs;
466 	VS::get_singleton()->mesh_add_surface_from_arrays(sphere, VS::PRIMITIVE_TRIANGLES, arr);
467 }
468 
~EditorMaterialPreviewPlugin()469 EditorMaterialPreviewPlugin::~EditorMaterialPreviewPlugin() {
470 
471 	VS::get_singleton()->free(sphere);
472 	VS::get_singleton()->free(sphere_instance);
473 	VS::get_singleton()->free(viewport);
474 	VS::get_singleton()->free(light);
475 	VS::get_singleton()->free(light_instance);
476 	VS::get_singleton()->free(light2);
477 	VS::get_singleton()->free(light_instance2);
478 	VS::get_singleton()->free(camera);
479 	VS::get_singleton()->free(scenario);
480 }
481 
482 ///////////////////////////////////////////////////////////////////////////
483 
_is_text_char(CharType c)484 static bool _is_text_char(CharType c) {
485 
486 	return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '_';
487 }
488 
handles(const String & p_type) const489 bool EditorScriptPreviewPlugin::handles(const String &p_type) const {
490 
491 	return ClassDB::is_parent_class(p_type, "Script");
492 }
493 
generate(const RES & p_from,const Size2 & p_size) const494 Ref<Texture> EditorScriptPreviewPlugin::generate(const RES &p_from, const Size2 &p_size) const {
495 
496 	Ref<Script> scr = p_from;
497 	if (scr.is_null())
498 		return Ref<Texture>();
499 
500 	String code = scr->get_source_code().strip_edges();
501 	if (code == "")
502 		return Ref<Texture>();
503 
504 	List<String> kwors;
505 	scr->get_language()->get_reserved_words(&kwors);
506 
507 	Set<String> keywords;
508 
509 	for (List<String>::Element *E = kwors.front(); E; E = E->next()) {
510 
511 		keywords.insert(E->get());
512 	}
513 
514 	int line = 0;
515 	int col = 0;
516 	Ref<Image> img;
517 	img.instance();
518 	int thumbnail_size = MAX(p_size.x, p_size.y);
519 	img->create(thumbnail_size, thumbnail_size, 0, Image::FORMAT_RGBA8);
520 
521 	Color bg_color = EditorSettings::get_singleton()->get("text_editor/highlighting/background_color");
522 	Color keyword_color = EditorSettings::get_singleton()->get("text_editor/highlighting/keyword_color");
523 	Color text_color = EditorSettings::get_singleton()->get("text_editor/highlighting/text_color");
524 	Color symbol_color = EditorSettings::get_singleton()->get("text_editor/highlighting/symbol_color");
525 
526 	img->lock();
527 
528 	if (bg_color.a == 0)
529 		bg_color = Color(0, 0, 0, 0);
530 	bg_color.a = MAX(bg_color.a, 0.2); // some background
531 
532 	for (int i = 0; i < thumbnail_size; i++) {
533 		for (int j = 0; j < thumbnail_size; j++) {
534 			img->set_pixel(i, j, bg_color);
535 		}
536 	}
537 
538 	const int x0 = thumbnail_size / 8;
539 	const int y0 = thumbnail_size / 8;
540 	const int available_height = thumbnail_size - 2 * y0;
541 	col = x0;
542 
543 	bool prev_is_text = false;
544 	bool in_keyword = false;
545 	for (int i = 0; i < code.length(); i++) {
546 
547 		CharType c = code[i];
548 		if (c > 32) {
549 			if (col < thumbnail_size) {
550 				Color color = text_color;
551 
552 				if (c != '_' && ((c >= '!' && c <= '/') || (c >= ':' && c <= '@') || (c >= '[' && c <= '`') || (c >= '{' && c <= '~') || c == '\t')) {
553 					//make symbol a little visible
554 					color = symbol_color;
555 					in_keyword = false;
556 				} else if (!prev_is_text && _is_text_char(c)) {
557 					int pos = i;
558 
559 					while (_is_text_char(code[pos])) {
560 						pos++;
561 					}
562 					String word = code.substr(i, pos - i);
563 					if (keywords.has(word))
564 						in_keyword = true;
565 
566 				} else if (!_is_text_char(c)) {
567 					in_keyword = false;
568 				}
569 
570 				if (in_keyword)
571 					color = keyword_color;
572 
573 				Color ul = color;
574 				ul.a *= 0.5;
575 				img->set_pixel(col, y0 + line * 2, bg_color.blend(ul));
576 				img->set_pixel(col, y0 + line * 2 + 1, color);
577 
578 				prev_is_text = _is_text_char(c);
579 			}
580 		} else {
581 
582 			prev_is_text = false;
583 			in_keyword = false;
584 
585 			if (c == '\n') {
586 				col = x0;
587 				line++;
588 				if (line >= available_height / 2)
589 					break;
590 			} else if (c == '\t') {
591 				col += 3;
592 			}
593 		}
594 		col++;
595 	}
596 
597 	img->unlock();
598 
599 	post_process_preview(img);
600 
601 	Ref<ImageTexture> ptex = Ref<ImageTexture>(memnew(ImageTexture));
602 
603 	ptex->create_from_image(img, 0);
604 	return ptex;
605 }
606 
EditorScriptPreviewPlugin()607 EditorScriptPreviewPlugin::EditorScriptPreviewPlugin() {
608 }
609 ///////////////////////////////////////////////////////////////////
610 
handles(const String & p_type) const611 bool EditorAudioStreamPreviewPlugin::handles(const String &p_type) const {
612 
613 	return ClassDB::is_parent_class(p_type, "AudioStream");
614 }
615 
generate(const RES & p_from,const Size2 & p_size) const616 Ref<Texture> EditorAudioStreamPreviewPlugin::generate(const RES &p_from, const Size2 &p_size) const {
617 
618 	Ref<AudioStream> stream = p_from;
619 	ERR_FAIL_COND_V(stream.is_null(), Ref<Texture>());
620 
621 	PoolVector<uint8_t> img;
622 
623 	int w = p_size.x;
624 	int h = p_size.y;
625 	img.resize(w * h * 3);
626 
627 	PoolVector<uint8_t>::Write imgdata = img.write();
628 	uint8_t *imgw = imgdata.ptr();
629 
630 	Ref<AudioStreamPlayback> playback = stream->instance_playback();
631 	ERR_FAIL_COND_V(playback.is_null(), Ref<Texture>());
632 
633 	float len_s = stream->get_length();
634 	if (len_s == 0) {
635 		len_s = 60; //one minute audio if no length specified
636 	}
637 	int frame_length = AudioServer::get_singleton()->get_mix_rate() * len_s;
638 
639 	Vector<AudioFrame> frames;
640 	frames.resize(frame_length);
641 
642 	playback->start();
643 	playback->mix(frames.ptrw(), 1, frames.size());
644 	playback->stop();
645 
646 	for (int i = 0; i < w; i++) {
647 
648 		float max = -1000;
649 		float min = 1000;
650 		int from = uint64_t(i) * frame_length / w;
651 		int to = (uint64_t(i) + 1) * frame_length / w;
652 		to = MIN(to, frame_length);
653 		from = MIN(from, frame_length - 1);
654 		if (to == from) {
655 			to = from + 1;
656 		}
657 
658 		for (int j = from; j < to; j++) {
659 
660 			max = MAX(max, frames[j].l);
661 			max = MAX(max, frames[j].r);
662 
663 			min = MIN(min, frames[j].l);
664 			min = MIN(min, frames[j].r);
665 		}
666 
667 		int pfrom = CLAMP((min * 0.5 + 0.5) * h / 2, 0, h / 2) + h / 4;
668 		int pto = CLAMP((max * 0.5 + 0.5) * h / 2, 0, h / 2) + h / 4;
669 
670 		for (int j = 0; j < h; j++) {
671 			uint8_t *p = &imgw[(j * w + i) * 3];
672 			if (j < pfrom || j > pto) {
673 				p[0] = 100;
674 				p[1] = 100;
675 				p[2] = 100;
676 			} else {
677 				p[0] = 180;
678 				p[1] = 180;
679 				p[2] = 180;
680 			}
681 		}
682 	}
683 
684 	imgdata.release();
685 	//post_process_preview(img);
686 
687 	Ref<ImageTexture> ptex = Ref<ImageTexture>(memnew(ImageTexture));
688 	Ref<Image> image;
689 	image.instance();
690 	image->create(w, h, false, Image::FORMAT_RGB8, img);
691 	ptex->create_from_image(image, 0);
692 	return ptex;
693 }
694 
EditorAudioStreamPreviewPlugin()695 EditorAudioStreamPreviewPlugin::EditorAudioStreamPreviewPlugin() {
696 }
697 
698 ///////////////////////////////////////////////////////////////////////////
699 
_preview_done(const Variant & p_udata)700 void EditorMeshPreviewPlugin::_preview_done(const Variant &p_udata) {
701 
702 	preview_done = true;
703 }
704 
_bind_methods()705 void EditorMeshPreviewPlugin::_bind_methods() {
706 
707 	ClassDB::bind_method("_preview_done", &EditorMeshPreviewPlugin::_preview_done);
708 }
handles(const String & p_type) const709 bool EditorMeshPreviewPlugin::handles(const String &p_type) const {
710 
711 	return ClassDB::is_parent_class(p_type, "Mesh"); //any Mesh
712 }
713 
generate(const RES & p_from,const Size2 & p_size) const714 Ref<Texture> EditorMeshPreviewPlugin::generate(const RES &p_from, const Size2 &p_size) const {
715 
716 	Ref<Mesh> mesh = p_from;
717 	ERR_FAIL_COND_V(mesh.is_null(), Ref<Texture>());
718 
719 	VS::get_singleton()->instance_set_base(mesh_instance, mesh->get_rid());
720 
721 	AABB aabb = mesh->get_aabb();
722 	Vector3 ofs = aabb.position + aabb.size * 0.5;
723 	aabb.position -= ofs;
724 	Transform xform;
725 	xform.basis = Basis().rotated(Vector3(0, 1, 0), -Math_PI * 0.125);
726 	xform.basis = Basis().rotated(Vector3(1, 0, 0), Math_PI * 0.125) * xform.basis;
727 	AABB rot_aabb = xform.xform(aabb);
728 	float m = MAX(rot_aabb.size.x, rot_aabb.size.y) * 0.5;
729 	if (m == 0)
730 		return Ref<Texture>();
731 	m = 1.0 / m;
732 	m *= 0.5;
733 	xform.basis.scale(Vector3(m, m, m));
734 	xform.origin = -xform.basis.xform(ofs); //-ofs*m;
735 	xform.origin.z -= rot_aabb.size.z * 2;
736 	VS::get_singleton()->instance_set_transform(mesh_instance, xform);
737 
738 	VS::get_singleton()->viewport_set_update_mode(viewport, VS::VIEWPORT_UPDATE_ONCE); //once used for capture
739 
740 	preview_done = false;
741 	VS::get_singleton()->request_frame_drawn_callback(const_cast<EditorMeshPreviewPlugin *>(this), "_preview_done", Variant());
742 
743 	while (!preview_done) {
744 		OS::get_singleton()->delay_usec(10);
745 	}
746 
747 	Ref<Image> img = VS::get_singleton()->texture_get_data(viewport_texture);
748 	ERR_FAIL_COND_V(img.is_null(), Ref<ImageTexture>());
749 
750 	VS::get_singleton()->instance_set_base(mesh_instance, RID());
751 
752 	img->convert(Image::FORMAT_RGBA8);
753 
754 	Vector2 new_size = img->get_size();
755 	if (new_size.x > p_size.x) {
756 		new_size = Vector2(p_size.x, new_size.y * p_size.x / new_size.x);
757 	}
758 	if (new_size.y > p_size.y) {
759 		new_size = Vector2(new_size.x * p_size.y / new_size.y, p_size.y);
760 	}
761 	img->resize(new_size.x, new_size.y, Image::INTERPOLATE_CUBIC);
762 
763 	post_process_preview(img);
764 
765 	Ref<ImageTexture> ptex = Ref<ImageTexture>(memnew(ImageTexture));
766 	ptex->create_from_image(img, 0);
767 	return ptex;
768 }
769 
EditorMeshPreviewPlugin()770 EditorMeshPreviewPlugin::EditorMeshPreviewPlugin() {
771 
772 	scenario = VS::get_singleton()->scenario_create();
773 
774 	viewport = VS::get_singleton()->viewport_create();
775 	VS::get_singleton()->viewport_set_update_mode(viewport, VS::VIEWPORT_UPDATE_DISABLED);
776 	VS::get_singleton()->viewport_set_vflip(viewport, true);
777 	VS::get_singleton()->viewport_set_scenario(viewport, scenario);
778 	VS::get_singleton()->viewport_set_size(viewport, 128, 128);
779 	VS::get_singleton()->viewport_set_transparent_background(viewport, true);
780 	VS::get_singleton()->viewport_set_active(viewport, true);
781 	viewport_texture = VS::get_singleton()->viewport_get_texture(viewport);
782 
783 	camera = VS::get_singleton()->camera_create();
784 	VS::get_singleton()->viewport_attach_camera(viewport, camera);
785 	VS::get_singleton()->camera_set_transform(camera, Transform(Basis(), Vector3(0, 0, 3)));
786 	//VS::get_singleton()->camera_set_perspective(camera,45,0.1,10);
787 	VS::get_singleton()->camera_set_orthogonal(camera, 1.0, 0.01, 1000.0);
788 
789 	light = VS::get_singleton()->directional_light_create();
790 	light_instance = VS::get_singleton()->instance_create2(light, scenario);
791 	VS::get_singleton()->instance_set_transform(light_instance, Transform().looking_at(Vector3(-1, -1, -1), Vector3(0, 1, 0)));
792 
793 	light2 = VS::get_singleton()->directional_light_create();
794 	VS::get_singleton()->light_set_color(light2, Color(0.7, 0.7, 0.7));
795 	//VS::get_singleton()->light_set_color(light2, VS::LIGHT_COLOR_SPECULAR, Color(0.0, 0.0, 0.0));
796 	light_instance2 = VS::get_singleton()->instance_create2(light2, scenario);
797 
798 	VS::get_singleton()->instance_set_transform(light_instance2, Transform().looking_at(Vector3(0, 1, 0), Vector3(0, 0, 1)));
799 
800 	//sphere = VS::get_singleton()->mesh_create();
801 	mesh_instance = VS::get_singleton()->instance_create();
802 	VS::get_singleton()->instance_set_scenario(mesh_instance, scenario);
803 }
804 
~EditorMeshPreviewPlugin()805 EditorMeshPreviewPlugin::~EditorMeshPreviewPlugin() {
806 
807 	//VS::get_singleton()->free(sphere);
808 	VS::get_singleton()->free(mesh_instance);
809 	VS::get_singleton()->free(viewport);
810 	VS::get_singleton()->free(light);
811 	VS::get_singleton()->free(light_instance);
812 	VS::get_singleton()->free(light2);
813 	VS::get_singleton()->free(light_instance2);
814 	VS::get_singleton()->free(camera);
815 	VS::get_singleton()->free(scenario);
816 }
817 
818 ///////////////////////////////////////////////////////////////////////////
819 
_preview_done(const Variant & p_udata)820 void EditorFontPreviewPlugin::_preview_done(const Variant &p_udata) {
821 
822 	preview_done = true;
823 }
824 
_bind_methods()825 void EditorFontPreviewPlugin::_bind_methods() {
826 
827 	ClassDB::bind_method("_preview_done", &EditorFontPreviewPlugin::_preview_done);
828 }
829 
handles(const String & p_type) const830 bool EditorFontPreviewPlugin::handles(const String &p_type) const {
831 
832 	return ClassDB::is_parent_class(p_type, "DynamicFontData") || ClassDB::is_parent_class(p_type, "DynamicFont");
833 }
834 
generate_from_path(const String & p_path,const Size2 & p_size) const835 Ref<Texture> EditorFontPreviewPlugin::generate_from_path(const String &p_path, const Size2 &p_size) const {
836 
837 	RES res = ResourceLoader::load(p_path);
838 	Ref<DynamicFont> sampled_font;
839 	if (res->is_class("DynamicFont")) {
840 		sampled_font = res->duplicate();
841 		if (sampled_font->get_outline_color() == Color(1, 1, 1, 1)) {
842 			sampled_font->set_outline_color(Color(0, 0, 0, 1));
843 		}
844 	} else if (res->is_class("DynamicFontData")) {
845 		sampled_font.instance();
846 		sampled_font->set_font_data(res);
847 	}
848 	sampled_font->set_size(50);
849 
850 	String sampled_text = "Abg";
851 	Vector2 size = sampled_font->get_string_size(sampled_text);
852 
853 	Vector2 pos;
854 
855 	pos.x = 64 - size.x / 2;
856 	pos.y = 80;
857 
858 	Ref<Font> font = sampled_font;
859 
860 	font->draw(canvas_item, pos, sampled_text);
861 
862 	preview_done = false;
863 	VS::get_singleton()->viewport_set_update_mode(viewport, VS::VIEWPORT_UPDATE_ONCE); //once used for capture
864 	VS::get_singleton()->request_frame_drawn_callback(const_cast<EditorFontPreviewPlugin *>(this), "_preview_done", Variant());
865 
866 	while (!preview_done) {
867 		OS::get_singleton()->delay_usec(10);
868 	}
869 
870 	VS::get_singleton()->canvas_item_clear(canvas_item);
871 
872 	Ref<Image> img = VS::get_singleton()->texture_get_data(viewport_texture);
873 	ERR_FAIL_COND_V(img.is_null(), Ref<ImageTexture>());
874 
875 	img->convert(Image::FORMAT_RGBA8);
876 
877 	Vector2 new_size = img->get_size();
878 	if (new_size.x > p_size.x) {
879 		new_size = Vector2(p_size.x, new_size.y * p_size.x / new_size.x);
880 	}
881 	if (new_size.y > p_size.y) {
882 		new_size = Vector2(new_size.x * p_size.y / new_size.y, p_size.y);
883 	}
884 	img->resize(new_size.x, new_size.y, Image::INTERPOLATE_CUBIC);
885 
886 	post_process_preview(img);
887 
888 	Ref<ImageTexture> ptex = Ref<ImageTexture>(memnew(ImageTexture));
889 	ptex->create_from_image(img, 0);
890 
891 	return ptex;
892 }
893 
generate(const RES & p_from,const Size2 & p_size) const894 Ref<Texture> EditorFontPreviewPlugin::generate(const RES &p_from, const Size2 &p_size) const {
895 
896 	String path = p_from->get_path();
897 	if (!FileAccess::exists(path)) {
898 		return Ref<Texture>();
899 	}
900 	return generate_from_path(path, p_size);
901 }
902 
EditorFontPreviewPlugin()903 EditorFontPreviewPlugin::EditorFontPreviewPlugin() {
904 
905 	viewport = VS::get_singleton()->viewport_create();
906 	VS::get_singleton()->viewport_set_update_mode(viewport, VS::VIEWPORT_UPDATE_DISABLED);
907 	VS::get_singleton()->viewport_set_vflip(viewport, true);
908 	VS::get_singleton()->viewport_set_size(viewport, 128, 128);
909 	VS::get_singleton()->viewport_set_active(viewport, true);
910 	viewport_texture = VS::get_singleton()->viewport_get_texture(viewport);
911 
912 	canvas = VS::get_singleton()->canvas_create();
913 	canvas_item = VS::get_singleton()->canvas_item_create();
914 
915 	VS::get_singleton()->viewport_attach_canvas(viewport, canvas);
916 	VS::get_singleton()->canvas_item_set_parent(canvas_item, canvas);
917 }
918 
~EditorFontPreviewPlugin()919 EditorFontPreviewPlugin::~EditorFontPreviewPlugin() {
920 
921 	VS::get_singleton()->free(canvas_item);
922 	VS::get_singleton()->free(canvas);
923 	VS::get_singleton()->free(viewport);
924 }
925