mirror of
https://github.com/godotengine/godot
synced 2024-11-02 08:18:44 +00:00
95b27fe8c7
This change introduces a new EditorThemeManager class to abstract theme generatio and its subroutines. Logic related to EditorTheme, EditorColorMap, and editor icons has been extracted into their respective files with includes cleaned up. All related files have been moved to a separate folder to better scope them in the project. This includes relevant generated files as well.
499 lines
18 KiB
C++
499 lines
18 KiB
C++
/**************************************************************************/
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/* editor_resource_preview.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "editor_resource_preview.h"
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#include "core/config/project_settings.h"
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#include "core/io/file_access.h"
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#include "core/io/resource_loader.h"
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#include "core/io/resource_saver.h"
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#include "core/variant/variant_utility.h"
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#include "editor/editor_node.h"
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#include "editor/editor_paths.h"
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#include "editor/editor_settings.h"
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#include "editor/editor_string_names.h"
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#include "editor/themes/editor_scale.h"
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#include "scene/resources/image_texture.h"
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#include "servers/rendering/rendering_server_default.h"
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bool EditorResourcePreviewGenerator::handles(const String &p_type) const {
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bool success = false;
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if (GDVIRTUAL_CALL(_handles, p_type, success)) {
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return success;
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}
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ERR_FAIL_V_MSG(false, "EditorResourcePreviewGenerator::_handles needs to be overridden.");
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}
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Ref<Texture2D> EditorResourcePreviewGenerator::generate(const Ref<Resource> &p_from, const Size2 &p_size, Dictionary &p_metadata) const {
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Ref<Texture2D> preview;
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if (GDVIRTUAL_CALL(_generate, p_from, p_size, p_metadata, preview)) {
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return preview;
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}
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ERR_FAIL_V_MSG(Ref<Texture2D>(), "EditorResourcePreviewGenerator::_generate needs to be overridden.");
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}
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Ref<Texture2D> EditorResourcePreviewGenerator::generate_from_path(const String &p_path, const Size2 &p_size, Dictionary &p_metadata) const {
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Ref<Texture2D> preview;
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if (GDVIRTUAL_CALL(_generate_from_path, p_path, p_size, p_metadata, preview)) {
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return preview;
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}
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Ref<Resource> res = ResourceLoader::load(p_path);
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if (!res.is_valid()) {
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return res;
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}
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return generate(res, p_size, p_metadata);
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}
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bool EditorResourcePreviewGenerator::generate_small_preview_automatically() const {
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bool success = false;
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GDVIRTUAL_CALL(_generate_small_preview_automatically, success);
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return success;
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}
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bool EditorResourcePreviewGenerator::can_generate_small_preview() const {
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bool success = false;
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GDVIRTUAL_CALL(_can_generate_small_preview, success);
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return success;
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}
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void EditorResourcePreviewGenerator::_bind_methods() {
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GDVIRTUAL_BIND(_handles, "type");
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GDVIRTUAL_BIND(_generate, "resource", "size", "metadata");
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GDVIRTUAL_BIND(_generate_from_path, "path", "size", "metadata");
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GDVIRTUAL_BIND(_generate_small_preview_automatically);
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GDVIRTUAL_BIND(_can_generate_small_preview);
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}
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EditorResourcePreviewGenerator::EditorResourcePreviewGenerator() {
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}
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EditorResourcePreview *EditorResourcePreview::singleton = nullptr;
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void EditorResourcePreview::_thread_func(void *ud) {
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EditorResourcePreview *erp = (EditorResourcePreview *)ud;
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erp->_thread();
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}
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void EditorResourcePreview::_preview_ready(const String &p_path, int p_hash, const Ref<Texture2D> &p_texture, const Ref<Texture2D> &p_small_texture, ObjectID id, const StringName &p_func, const Variant &p_ud, const Dictionary &p_metadata) {
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{
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MutexLock lock(preview_mutex);
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uint64_t modified_time = 0;
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if (!p_path.begins_with("ID:")) {
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modified_time = FileAccess::get_modified_time(p_path);
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}
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Item item;
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item.order = order++;
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item.preview = p_texture;
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item.small_preview = p_small_texture;
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item.last_hash = p_hash;
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item.modified_time = modified_time;
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item.preview_metadata = p_metadata;
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cache[p_path] = item;
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}
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Callable(id, p_func).call_deferred(p_path, p_texture, p_small_texture, p_ud);
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}
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void EditorResourcePreview::_generate_preview(Ref<ImageTexture> &r_texture, Ref<ImageTexture> &r_small_texture, const QueueItem &p_item, const String &cache_base, Dictionary &p_metadata) {
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String type;
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if (p_item.resource.is_valid()) {
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type = p_item.resource->get_class();
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} else {
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type = ResourceLoader::get_resource_type(p_item.path);
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}
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if (type.is_empty()) {
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r_texture = Ref<ImageTexture>();
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r_small_texture = Ref<ImageTexture>();
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return; //could not guess type
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}
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int thumbnail_size = EDITOR_GET("filesystem/file_dialog/thumbnail_size");
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thumbnail_size *= EDSCALE;
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r_texture = Ref<ImageTexture>();
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r_small_texture = Ref<ImageTexture>();
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for (int i = 0; i < preview_generators.size(); i++) {
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if (!preview_generators[i]->handles(type)) {
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continue;
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}
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Ref<Texture2D> generated;
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if (p_item.resource.is_valid()) {
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generated = preview_generators.write[i]->generate(p_item.resource, Vector2(thumbnail_size, thumbnail_size), p_metadata);
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} else {
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generated = preview_generators.write[i]->generate_from_path(p_item.path, Vector2(thumbnail_size, thumbnail_size), p_metadata);
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}
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r_texture = generated;
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if (preview_generators[i]->can_generate_small_preview()) {
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Ref<Texture2D> generated_small;
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Dictionary d;
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if (p_item.resource.is_valid()) {
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generated_small = preview_generators.write[i]->generate(p_item.resource, Vector2(small_thumbnail_size, small_thumbnail_size), d);
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} else {
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generated_small = preview_generators.write[i]->generate_from_path(p_item.path, Vector2(small_thumbnail_size, small_thumbnail_size), d);
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}
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r_small_texture = generated_small;
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}
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if (!r_small_texture.is_valid() && r_texture.is_valid() && preview_generators[i]->generate_small_preview_automatically()) {
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Ref<Image> small_image = r_texture->get_image();
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small_image = small_image->duplicate();
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small_image->resize(small_thumbnail_size, small_thumbnail_size, Image::INTERPOLATE_CUBIC);
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r_small_texture.instantiate();
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r_small_texture->set_image(small_image);
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}
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break;
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}
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if (!p_item.resource.is_valid()) {
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// Cache the preview in case it's a resource on disk.
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if (r_texture.is_valid()) {
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// Wow it generated a preview... save cache.
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bool has_small_texture = r_small_texture.is_valid();
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ResourceSaver::save(r_texture, cache_base + ".png");
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if (has_small_texture) {
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ResourceSaver::save(r_small_texture, cache_base + "_small.png");
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}
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Ref<FileAccess> f = FileAccess::open(cache_base + ".txt", FileAccess::WRITE);
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ERR_FAIL_COND_MSG(f.is_null(), "Cannot create file '" + cache_base + ".txt'. Check user write permissions.");
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_write_preview_cache(f, thumbnail_size, has_small_texture, FileAccess::get_modified_time(p_item.path), FileAccess::get_md5(p_item.path), p_metadata);
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}
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}
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}
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const Dictionary EditorResourcePreview::get_preview_metadata(const String &p_path) const {
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ERR_FAIL_COND_V(!cache.has(p_path), Dictionary());
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return cache[p_path].preview_metadata;
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}
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void EditorResourcePreview::_iterate() {
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preview_mutex.lock();
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if (queue.size() == 0) {
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preview_mutex.unlock();
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return;
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}
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QueueItem item = queue.front()->get();
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queue.pop_front();
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if (cache.has(item.path)) {
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Item cached_item = cache[item.path];
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// Already has it because someone loaded it, just let it know it's ready.
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_preview_ready(item.path, cached_item.last_hash, cached_item.preview, cached_item.small_preview, item.id, item.function, item.userdata, cached_item.preview_metadata);
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preview_mutex.unlock();
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return;
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}
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preview_mutex.unlock();
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Ref<ImageTexture> texture;
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Ref<ImageTexture> small_texture;
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int thumbnail_size = EDITOR_GET("filesystem/file_dialog/thumbnail_size");
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thumbnail_size *= EDSCALE;
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if (item.resource.is_valid()) {
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Dictionary preview_metadata;
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_generate_preview(texture, small_texture, item, String(), preview_metadata);
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_preview_ready(item.path, item.resource->hash_edited_version(), texture, small_texture, item.id, item.function, item.userdata, preview_metadata);
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return;
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}
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Dictionary preview_metadata;
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String temp_path = EditorPaths::get_singleton()->get_cache_dir();
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String cache_base = ProjectSettings::get_singleton()->globalize_path(item.path).md5_text();
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cache_base = temp_path.path_join("resthumb-" + cache_base);
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// Does not have it, try to load a cached thumbnail.
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String file = cache_base + ".txt";
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Ref<FileAccess> f = FileAccess::open(file, FileAccess::READ);
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if (f.is_null()) {
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// No cache found, generate.
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_generate_preview(texture, small_texture, item, cache_base, preview_metadata);
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} else {
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uint64_t modtime = FileAccess::get_modified_time(item.path);
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int tsize;
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bool has_small_texture;
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uint64_t last_modtime;
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String hash;
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_read_preview_cache(f, &tsize, &has_small_texture, &last_modtime, &hash, &preview_metadata);
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bool cache_valid = true;
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if (tsize != thumbnail_size) {
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cache_valid = false;
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f.unref();
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} else if (last_modtime != modtime) {
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String last_md5 = f->get_line();
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String md5 = FileAccess::get_md5(item.path);
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f.unref();
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if (last_md5 != md5) {
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cache_valid = false;
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} else {
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// Update modified time.
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Ref<FileAccess> f2 = FileAccess::open(file, FileAccess::WRITE);
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if (f2.is_null()) {
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// Not returning as this would leave the thread hanging and would require
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// some proper cleanup/disabling of resource preview generation.
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ERR_PRINT("Cannot create file '" + file + "'. Check user write permissions.");
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} else {
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_write_preview_cache(f2, thumbnail_size, has_small_texture, modtime, md5, preview_metadata);
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}
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}
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} else {
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f.unref();
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}
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if (cache_valid) {
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Ref<Image> img;
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img.instantiate();
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Ref<Image> small_img;
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small_img.instantiate();
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if (img->load(cache_base + ".png") != OK) {
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cache_valid = false;
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} else {
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texture.instantiate();
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texture->set_image(img);
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if (has_small_texture) {
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if (small_img->load(cache_base + "_small.png") != OK) {
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cache_valid = false;
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} else {
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small_texture.instantiate();
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small_texture->set_image(small_img);
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}
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}
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}
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}
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if (!cache_valid) {
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_generate_preview(texture, small_texture, item, cache_base, preview_metadata);
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}
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}
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_preview_ready(item.path, 0, texture, small_texture, item.id, item.function, item.userdata, preview_metadata);
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}
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void EditorResourcePreview::_write_preview_cache(Ref<FileAccess> p_file, int p_thumbnail_size, bool p_has_small_texture, uint64_t p_modified_time, String p_hash, const Dictionary &p_metadata) {
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p_file->store_line(itos(p_thumbnail_size));
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p_file->store_line(itos(p_has_small_texture));
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p_file->store_line(itos(p_modified_time));
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p_file->store_line(p_hash);
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p_file->store_line(VariantUtilityFunctions::var_to_str(p_metadata).replace("\n", " "));
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}
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void EditorResourcePreview::_read_preview_cache(Ref<FileAccess> p_file, int *r_thumbnail_size, bool *r_has_small_texture, uint64_t *r_modified_time, String *r_hash, Dictionary *r_metadata) {
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*r_thumbnail_size = p_file->get_line().to_int();
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*r_has_small_texture = p_file->get_line().to_int();
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*r_modified_time = p_file->get_line().to_int();
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*r_hash = p_file->get_line();
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*r_metadata = VariantUtilityFunctions::str_to_var(p_file->get_line());
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}
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void EditorResourcePreview::_thread() {
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exited.clear();
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while (!exiting.is_set()) {
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preview_sem.wait();
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_iterate();
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}
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exited.set();
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}
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void EditorResourcePreview::_idle_callback() {
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if (!singleton) {
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// Just in case the shutdown of the editor involves the deletion of the singleton
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// happening while additional idle callbacks can happen.
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return;
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}
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// Process preview tasks, trying to leave a little bit of responsiveness worst case.
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uint64_t start = OS::get_singleton()->get_ticks_msec();
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while (!singleton->queue.is_empty() && OS::get_singleton()->get_ticks_msec() - start < 100) {
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singleton->_iterate();
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}
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}
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void EditorResourcePreview::_update_thumbnail_sizes() {
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if (small_thumbnail_size == -1) {
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// Kind of a workaround to retrieve the default icon size.
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small_thumbnail_size = EditorNode::get_singleton()->get_editor_theme()->get_icon(SNAME("Object"), EditorStringName(EditorIcons))->get_width();
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}
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}
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void EditorResourcePreview::queue_edited_resource_preview(const Ref<Resource> &p_res, Object *p_receiver, const StringName &p_receiver_func, const Variant &p_userdata) {
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ERR_FAIL_NULL(p_receiver);
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ERR_FAIL_COND(!p_res.is_valid());
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_update_thumbnail_sizes();
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{
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MutexLock lock(preview_mutex);
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String path_id = "ID:" + itos(p_res->get_instance_id());
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if (cache.has(path_id) && cache[path_id].last_hash == p_res->hash_edited_version()) {
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cache[path_id].order = order++;
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p_receiver->call(p_receiver_func, path_id, cache[path_id].preview, cache[path_id].small_preview, p_userdata);
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return;
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}
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cache.erase(path_id); //erase if exists, since it will be regen
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QueueItem item;
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item.function = p_receiver_func;
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item.id = p_receiver->get_instance_id();
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item.resource = p_res;
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item.path = path_id;
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item.userdata = p_userdata;
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queue.push_back(item);
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}
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preview_sem.post();
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}
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void EditorResourcePreview::queue_resource_preview(const String &p_path, Object *p_receiver, const StringName &p_receiver_func, const Variant &p_userdata) {
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ERR_FAIL_NULL(p_receiver);
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_update_thumbnail_sizes();
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{
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MutexLock lock(preview_mutex);
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if (cache.has(p_path)) {
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cache[p_path].order = order++;
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p_receiver->call(p_receiver_func, p_path, cache[p_path].preview, cache[p_path].small_preview, p_userdata);
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return;
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}
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QueueItem item;
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item.function = p_receiver_func;
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item.id = p_receiver->get_instance_id();
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item.path = p_path;
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item.userdata = p_userdata;
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queue.push_back(item);
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}
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preview_sem.post();
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}
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void EditorResourcePreview::add_preview_generator(const Ref<EditorResourcePreviewGenerator> &p_generator) {
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preview_generators.push_back(p_generator);
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}
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void EditorResourcePreview::remove_preview_generator(const Ref<EditorResourcePreviewGenerator> &p_generator) {
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preview_generators.erase(p_generator);
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}
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EditorResourcePreview *EditorResourcePreview::get_singleton() {
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return singleton;
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}
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void EditorResourcePreview::_bind_methods() {
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ClassDB::bind_method(D_METHOD("queue_resource_preview", "path", "receiver", "receiver_func", "userdata"), &EditorResourcePreview::queue_resource_preview);
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ClassDB::bind_method(D_METHOD("queue_edited_resource_preview", "resource", "receiver", "receiver_func", "userdata"), &EditorResourcePreview::queue_edited_resource_preview);
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ClassDB::bind_method(D_METHOD("add_preview_generator", "generator"), &EditorResourcePreview::add_preview_generator);
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ClassDB::bind_method(D_METHOD("remove_preview_generator", "generator"), &EditorResourcePreview::remove_preview_generator);
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ClassDB::bind_method(D_METHOD("check_for_invalidation", "path"), &EditorResourcePreview::check_for_invalidation);
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ADD_SIGNAL(MethodInfo("preview_invalidated", PropertyInfo(Variant::STRING, "path")));
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}
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void EditorResourcePreview::check_for_invalidation(const String &p_path) {
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bool call_invalidated = false;
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{
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MutexLock lock(preview_mutex);
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if (cache.has(p_path)) {
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uint64_t modified_time = FileAccess::get_modified_time(p_path);
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if (modified_time != cache[p_path].modified_time) {
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cache.erase(p_path);
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call_invalidated = true;
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}
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}
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}
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|
|
|
if (call_invalidated) { //do outside mutex
|
|
call_deferred(SNAME("emit_signal"), "preview_invalidated", p_path);
|
|
}
|
|
}
|
|
|
|
void EditorResourcePreview::start() {
|
|
if (DisplayServer::get_singleton()->get_name() == "headless") {
|
|
return;
|
|
}
|
|
|
|
if (RSG::texture_storage->can_create_resources_async()) {
|
|
ERR_FAIL_COND_MSG(thread.is_started(), "Thread already started.");
|
|
thread.start(_thread_func, this);
|
|
} else {
|
|
SceneTree *st = Object::cast_to<SceneTree>(OS::get_singleton()->get_main_loop());
|
|
ERR_FAIL_NULL_MSG(st, "Editor's MainLoop is not a SceneTree. This is a bug.");
|
|
}
|
|
}
|
|
|
|
void EditorResourcePreview::stop() {
|
|
if (RSG::texture_storage->can_create_resources_async()) {
|
|
if (thread.is_started()) {
|
|
exiting.set();
|
|
preview_sem.post();
|
|
|
|
for (int i = 0; i < preview_generators.size(); i++) {
|
|
preview_generators.write[i]->abort();
|
|
}
|
|
|
|
while (!exited.is_set()) {
|
|
OS::get_singleton()->delay_usec(10000);
|
|
RenderingServer::get_singleton()->sync(); //sync pending stuff, as thread may be blocked on rendering server
|
|
}
|
|
|
|
thread.wait_to_finish();
|
|
}
|
|
}
|
|
}
|
|
|
|
EditorResourcePreview::EditorResourcePreview() {
|
|
singleton = this;
|
|
order = 0;
|
|
}
|
|
|
|
EditorResourcePreview::~EditorResourcePreview() {
|
|
stop();
|
|
}
|