godot/platform/ios/export/export_plugin.cpp

/**************************************************************************/
/*  export_plugin.cpp                                                     */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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#include "export_plugin.h"

#include "logo_svg.gen.h"
#include "run_icon_svg.gen.h"

EditorExportPlatformIOS::EditorExportPlatformIOS() :
		EditorExportPlatformAppleEmbedded(_ios_logo_svg, _ios_run_icon_svg) {
}

EditorExportPlatformIOS::~EditorExportPlatformIOS() {
}

void EditorExportPlatformIOS::get_export_options(List<ExportOption> *r_options) const {
	EditorExportPlatformAppleEmbedded::get_export_options(r_options);

	r_options->push_back(ExportOption(PropertyInfo(Variant::INT, "application/targeted_device_family", PROPERTY_HINT_ENUM, "iPhone,iPad,iPhone & iPad"), 2));
	r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "application/min_ios_version"), get_minimum_deployment_target()));

	r_options->push_back(ExportOption(PropertyInfo(Variant::INT, "storyboard/image_scale_mode", PROPERTY_HINT_ENUM, "Same as Logo,Center,Scale to Fit,Scale to Fill,Scale"), 0));
	r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "storyboard/custom_image@2x", PROPERTY_HINT_FILE, "*.png,*.jpg,*.jpeg"), ""));
	r_options->push_back(ExportOption(PropertyInfo(Variant::STRING, "storyboard/custom_image@3x", PROPERTY_HINT_FILE, "*.png,*.jpg,*.jpeg"), ""));
	r_options->push_back(ExportOption(PropertyInfo(Variant::BOOL, "storyboard/use_custom_bg_color"), false));
	r_options->push_back(ExportOption(PropertyInfo(Variant::COLOR, "storyboard/custom_bg_color"), Color()));
}

bool EditorExportPlatformIOS::has_valid_export_configuration(const Ref<EditorExportPreset> &p_preset, String &r_error, bool &r_missing_templates, bool p_debug) const {
	bool valid = EditorExportPlatformAppleEmbedded::has_valid_export_configuration(p_preset, r_error, r_missing_templates, p_debug);

	String err;
	String rendering_method = get_project_setting(p_preset, "rendering/renderer/rendering_method.mobile");
	String rendering_driver = get_project_setting(p_preset, "rendering/rendering_device/driver." + get_platform_name());
	if ((rendering_method == "forward_plus" || rendering_method == "mobile") && rendering_driver == "metal") {
		float version = p_preset->get("application/min_ios_version").operator String().to_float();
		if (version < 14.0) {
			err += TTR("Metal renderer require iOS 14+.") + "\n";
		}
	}

	if (!err.is_empty()) {
		if (!r_error.is_empty()) {
			r_error += err;
		} else {
			r_error = err;
		}
	}

	return valid;
}

HashMap<String, Variant> EditorExportPlatformIOS::get_custom_project_settings(const Ref<EditorExportPreset> &p_preset) const {
	HashMap<String, Variant> settings;

	int image_scale_mode = p_preset->get("storyboard/image_scale_mode");
	String value;

	switch (image_scale_mode) {
		case 0: {
			String logo_path = get_project_setting(p_preset, "application/boot_splash/image");
			bool is_on = get_project_setting(p_preset, "application/boot_splash/fullsize");
			// If custom logo is not specified, Godot does not scale default one, so we should do the same.
			value = (is_on && logo_path.length() > 0) ? "scaleAspectFit" : "center";
		} break;
		default: {
			value = storyboard_image_scale_mode[image_scale_mode - 1];
		}
	}
	settings["ios/launch_screen_image_mode"] = value;
	return settings;
}

Error EditorExportPlatformIOS::_export_loading_screen_file(const Ref<EditorExportPreset> &p_preset, const String &p_dest_dir) {
	const String custom_launch_image_2x = p_preset->get("storyboard/custom_image@2x");
	const String custom_launch_image_3x = p_preset->get("storyboard/custom_image@3x");

	if (custom_launch_image_2x.length() > 0 && custom_launch_image_3x.length() > 0) {
		String image_path = p_dest_dir.path_join("[email protected]");
		Error err = OK;
		Ref<Image> image = _load_icon_or_splash_image(custom_launch_image_2x, &err);

		if (err != OK || image.is_null() || image->is_empty()) {
			return err;
		}

		if (image->save_png(image_path) != OK) {
			return ERR_FILE_CANT_WRITE;
		}

		image_path = p_dest_dir.path_join("[email protected]");
		image = _load_icon_or_splash_image(custom_launch_image_3x, &err);

		if (err != OK || image.is_null() || image->is_empty()) {
			return err;
		}

		if (image->save_png(image_path) != OK) {
			return ERR_FILE_CANT_WRITE;
		}
	} else {
		Error err = OK;
		Ref<Image> splash;

		const String splash_path = get_project_setting(p_preset, "application/boot_splash/image");

		if (!splash_path.is_empty()) {
			splash = _load_icon_or_splash_image(splash_path, &err);
		}

		if (err != OK || splash.is_null() || splash->is_empty()) {
			splash.instantiate(boot_splash_png);
		}

		// Using same image for both @2x and @3x
		// because Godot's own boot logo uses single image for all resolutions.
		// Also not using @1x image, because devices using this image variant
		// are not supported by iOS 9, which is minimal target.
		const String splash_png_path_2x = p_dest_dir.path_join("[email protected]");
		const String splash_png_path_3x = p_dest_dir.path_join("[email protected]");

		if (splash->save_png(splash_png_path_2x) != OK) {
			return ERR_FILE_CANT_WRITE;
		}

		if (splash->save_png(splash_png_path_3x) != OK) {
			return ERR_FILE_CANT_WRITE;
		}
	}

	return OK;
}

Vector<EditorExportPlatformAppleEmbedded::IconInfo> EditorExportPlatformIOS::get_icon_infos() const {
	Vector<EditorExportPlatformAppleEmbedded::IconInfo> icon_infos;
	return {
		// Settings on iPhone, iPad Pro, iPad, iPad mini
		{ PNAME("icons/settings_58x58"), "universal", "Icon-58", "58", "2x", "29x29", false },
		{ PNAME("icons/settings_87x87"), "universal", "Icon-87", "87", "3x", "29x29", false },

		// Notifications on iPhone, iPad Pro, iPad, iPad mini
		{ PNAME("icons/notification_40x40"), "universal", "Icon-40", "40", "2x", "20x20", false },
		{ PNAME("icons/notification_60x60"), "universal", "Icon-60", "60", "3x", "20x20", false },
		{ PNAME("icons/notification_76x76"), "universal", "Icon-76", "76", "2x", "38x38", false },
		{ PNAME("icons/notification_114x114"), "universal", "Icon-114", "114", "3x", "38x38", false },

		// Spotlight on iPhone, iPad Pro, iPad, iPad mini
		{ PNAME("icons/spotlight_80x80"), "universal", "Icon-80", "80", "2x", "40x40", false },
		{ PNAME("icons/spotlight_120x120"), "universal", "Icon-120", "120", "3x", "40x40", false },

		// Home Screen on iPhone
		{ PNAME("icons/iphone_120x120"), "universal", "Icon-120-1", "120", "2x", "60x60", false },
		{ PNAME("icons/iphone_180x180"), "universal", "Icon-180", "180", "3x", "60x60", false },

		// Home Screen on iPad Pro
		{ PNAME("icons/ipad_167x167"), "universal", "Icon-167", "167", "2x", "83.5x83.5", false },

		// Home Screen on iPad, iPad mini
		{ PNAME("icons/ipad_152x152"), "universal", "Icon-152", "152", "2x", "76x76", false },

		{ PNAME("icons/ios_128x128"), "universal", "Icon-128", "128", "2x", "64x64", false },
		{ PNAME("icons/ios_192x192"), "universal", "Icon-192", "192", "3x", "64x64", false },

		{ PNAME("icons/ios_136x136"), "universal", "Icon-136", "136", "2x", "68x68", false },

		// App Store
		{ PNAME("icons/app_store_1024x1024"), "universal", "Icon-1024", "1024", "1x", "1024x1024", true },
	};
}

Error EditorExportPlatformIOS::_export_icons(const Ref<EditorExportPreset> &p_preset, const String &p_iconset_dir) {
	String json_description = "{\"images\":[";
	String sizes;

	Ref<DirAccess> da = DirAccess::open(p_iconset_dir);
	if (da.is_null()) {
		add_message(EXPORT_MESSAGE_ERROR, TTR("Export Icons"), vformat(TTR("Could not open a directory at path \"%s\"."), p_iconset_dir));
		return ERR_CANT_OPEN;
	}

	Color boot_bg_color = get_project_setting(p_preset, "application/boot_splash/bg_color");

	enum IconColorMode {
		ICON_NORMAL,
		ICON_DARK,
		ICON_TINTED,
		ICON_MAX,
	};

	Vector<IconInfo> icon_infos = get_icon_infos();
	bool first_icon = true;
	for (int i = 0; i < icon_infos.size(); ++i) {
		for (int color_mode = ICON_NORMAL; color_mode < ICON_MAX; color_mode++) {
			IconInfo info = icon_infos[i];
			int side_size = String(info.actual_size_side).to_int();
			String key = info.preset_key;
			String exp_name = info.export_name;
			if (color_mode == ICON_DARK) {
				key += "_dark";
				exp_name += "_dark";
			} else if (color_mode == ICON_TINTED) {
				key += "_tinted";
				exp_name += "_tinted";
			}
			exp_name += ".png";
			String icon_path = p_preset->get(key);
			bool resize_waning = true;
			if (icon_path.is_empty()) {
				// Load and resize base icon.
				key = "icons/icon_1024x1024";
				if (color_mode == ICON_DARK) {
					key += "_dark";
				} else if (color_mode == ICON_TINTED) {
					key += "_tinted";
				}
				icon_path = p_preset->get(key);
				resize_waning = false;
			}
			if (icon_path.is_empty()) {
				if (color_mode != ICON_NORMAL) {
					continue;
				}
				// Resize main app icon.
				icon_path = get_project_setting(p_preset, "application/config/icon");
				Error err = OK;
				Ref<Image> img = _load_icon_or_splash_image(icon_path, &err);
				if (err != OK || img.is_null() || img->is_empty()) {
					add_message(EXPORT_MESSAGE_ERROR, TTR("Export Icons"), vformat("Invalid icon (%s): '%s'.", info.preset_key, icon_path));
					return ERR_UNCONFIGURED;
				} else if (info.force_opaque && img->detect_alpha() != Image::ALPHA_NONE) {
					img->resize(side_size, side_size, (Image::Interpolation)(p_preset->get("application/icon_interpolation").operator int()));
					Ref<Image> new_img = Image::create_empty(side_size, side_size, false, Image::FORMAT_RGBA8);
					new_img->fill(boot_bg_color);
					_blend_and_rotate(new_img, img, false);
					err = new_img->save_png(p_iconset_dir + exp_name);
				} else {
					img->resize(side_size, side_size, (Image::Interpolation)(p_preset->get("application/icon_interpolation").operator int()));
					err = img->save_png(p_iconset_dir + exp_name);
				}
				if (err) {
					add_message(EXPORT_MESSAGE_ERROR, TTR("Export Icons"), vformat("Failed to export icon (%s): '%s'.", info.preset_key, icon_path));
					return err;
				}
			} else {
				// Load custom icon and resize if required.
				Error err = OK;
				Ref<Image> img = _load_icon_or_splash_image(icon_path, &err);
				if (err != OK || img.is_null() || img->is_empty()) {
					add_message(EXPORT_MESSAGE_ERROR, TTR("Export Icons"), vformat("Invalid icon (%s): '%s'.", info.preset_key, icon_path));
					return ERR_UNCONFIGURED;
				} else if (info.force_opaque && img->detect_alpha() != Image::ALPHA_NONE) {
					if (resize_waning) {
						add_message(EXPORT_MESSAGE_WARNING, TTR("Export Icons"), vformat("Icon (%s) must be opaque.", info.preset_key));
					}
					img->resize(side_size, side_size, (Image::Interpolation)(p_preset->get("application/icon_interpolation").operator int()));
					Ref<Image> new_img = Image::create_empty(side_size, side_size, false, Image::FORMAT_RGBA8);
					new_img->fill(boot_bg_color);
					_blend_and_rotate(new_img, img, false);
					err = new_img->save_png(p_iconset_dir + exp_name);
				} else if (img->get_width() != side_size || img->get_height() != side_size) {
					if (resize_waning) {
						add_message(EXPORT_MESSAGE_WARNING, TTR("Export Icons"), vformat("Icon (%s): '%s' has incorrect size %s and was automatically resized to %s.", info.preset_key, icon_path, img->get_size(), Vector2i(side_size, side_size)));
					}
					img->resize(side_size, side_size, (Image::Interpolation)(p_preset->get("application/icon_interpolation").operator int()));
					err = img->save_png(p_iconset_dir + exp_name);
				} else if (!icon_path.ends_with(".png")) {
					err = img->save_png(p_iconset_dir + exp_name);
				} else {
					err = da->copy(icon_path, p_iconset_dir + exp_name);
				}

				if (err) {
					add_message(EXPORT_MESSAGE_ERROR, TTR("Export Icons"), vformat("Failed to export icon (%s): '%s'.", info.preset_key, icon_path));
					return err;
				}
			}
			sizes += String(info.actual_size_side) + "\n";
			if (first_icon) {
				first_icon = false;
			} else {
				json_description += ",";
			}
			json_description += String("{");
			if (color_mode != ICON_NORMAL) {
				json_description += String("\"appearances\":[{");
				json_description += String("\"appearance\":\"luminosity\",");
				if (color_mode == ICON_DARK) {
					json_description += String("\"value\":\"dark\"");
				} else if (color_mode == ICON_TINTED) {
					json_description += String("\"value\":\"tinted\"");
				}
				json_description += String("}],");
			}
			json_description += String("\"idiom\":") + "\"" + info.idiom + "\",";
			json_description += String("\"platform\":\"" + get_platform_name() + "\",");
			json_description += String("\"size\":") + "\"" + info.unscaled_size + "\",";
			if (String(info.scale) != "1x") {
				json_description += String("\"scale\":") + "\"" + info.scale + "\",";
			}
			json_description += String("\"filename\":") + "\"" + exp_name + "\"";
			json_description += String("}");
		}
	}
	json_description += "],\"info\":{\"author\":\"xcode\",\"version\":1}}";

	Ref<FileAccess> json_file = FileAccess::open(p_iconset_dir + "Contents.json", FileAccess::WRITE);
	if (json_file.is_null()) {
		add_message(EXPORT_MESSAGE_ERROR, TTR("Export Icons"), vformat(TTR("Could not write to a file at path \"%s\"."), p_iconset_dir + "Contents.json"));
		return ERR_CANT_CREATE;
	}

	CharString json_utf8 = json_description.utf8();
	json_file->store_buffer((const uint8_t *)json_utf8.get_data(), json_utf8.length());

	Ref<FileAccess> sizes_file = FileAccess::open(p_iconset_dir + "sizes", FileAccess::WRITE);
	if (sizes_file.is_null()) {
		add_message(EXPORT_MESSAGE_ERROR, TTR("Export Icons"), vformat(TTR("Could not write to a file at path \"%s\"."), p_iconset_dir + "sizes"));
		return ERR_CANT_CREATE;
	}

	CharString sizes_utf8 = sizes.utf8();
	sizes_file->store_buffer((const uint8_t *)sizes_utf8.get_data(), sizes_utf8.length());

	return OK;
}