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engines/crab/image/ImageManager.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+/*
+ * This code is based on the CRAB engine
+ *
+ * Copyright (c) Arvind Raja Yadav
+ *
+ * Licensed under MIT
+ *
+ */
+
+//=============================================================================
+// Author:   Arvind
+// Purpose:  Contains the image manager class - used to manage in-game images
+//=============================================================================
+#include "crab/crab.h"
+#include "crab/GameParam.h"
+#include "crab/ScreenSettings.h"
+#include "crab/XMLDoc.h"
+#include "crab/image/ImageManager.h"
+#include "crab/input/cursor.h"
+
+namespace Crab {
+
+using namespace pyrodactyl::image;
+
+//------------------------------------------------------------------------
+// Purpose: Load assets here.
+//------------------------------------------------------------------------
+void ImageManager::loadMap(const Common::Path &filename, const MapID &mapid) {
+	for (auto &it : _map[mapid])
+		it._value.deleteImage();
+
+	_map[mapid].clear();
+	XMLDoc imageList(filename);
+	if (imageList.ready()) {
+		rapidxml::xml_node<char> *node = imageList.doc()->first_node("res");
+		for (auto n = node->first_node("image"); n != nullptr; n = n->next_sibling("image")) {
+			ImageKey key;
+			if (loadImgKey(key, "name", n)) {
+				// Load different images depending on image quality setting
+				// Check if there is a low quality image specified for the asset id
+				// if yes, load it  - if no, just load the higher quality one
+
+				bool valid = false;
+				Common::Path path;
+
+				if (!g_engine->_screenSettings->_quality)
+					valid = loadPath(path, "path_low", n, false);
+
+				if (!valid)
+					valid = loadPath(path, "path", n, false);
+
+				if (valid)
+					_map[mapid][key].load(path);
+				else
+					error("ImageManager::loadMap : Unable to load image id %u from %s!", key, path.toString(Common::Path::kNativeSeparator).c_str());
+			}
+		}
+
+		if (nodeValid("mouse", node, false)) {
+			using namespace pyrodactyl::input;
+			g_engine->_mouse->quit();
+			g_engine->_mouse->load(node->first_node("mouse"));
+		}
+	}
+}
+
+bool ImageManager::init() {
+	// First, delete everything that exists
+	quit();
+
+	// Load common assets
+	loadMap(g_engine->_filePath->_common, MAP_COMMON);
+
+	// Load main menu assets
+	loadMap(g_engine->_filePath->_currentR, MAP_CURRENT);
+
+	_invalidImg = _map[MAP_COMMON][0];
+
+	return true;
+}
+
+//------------------------------------------------------------------------
+// Purpose: Get texture for a particular id
+//------------------------------------------------------------------------
+void ImageManager::getTexture(const ImageKey &id, Image &data) {
+	if (_map[MAP_CURRENT].contains(id))
+		data = _map[MAP_CURRENT][id];
+	else if (_map[MAP_COMMON].contains(id))
+		data = _map[MAP_COMMON][id];
+	else
+		data = _invalidImg;
+}
+
+Image &ImageManager::getTexture(const ImageKey &id) {
+	if (_map[MAP_CURRENT].contains(id))
+		return _map[MAP_CURRENT][id];
+	else if (_map[MAP_COMMON].contains(id))
+		return _map[MAP_COMMON][id];
+
+	return _invalidImg;
+}
+
+bool ImageManager::validTexture(const ImageKey &id) {
+	if (id != 0 && (_map[MAP_CURRENT].contains(id) || _map[MAP_COMMON].contains(id)))
+		return true;
+
+	return false;
+}
+
+//------------------------------------------------------------------------
+// Purpose: Draw
+//------------------------------------------------------------------------
+void ImageManager::draw(const int &x, const int &y, const ImageKey &id, Common::Rect *clip,
+						const TextureFlipType &flip) {
+	getTexture(id).draw(x, y, clip, flip);
+}
+
+//------------------------------------------------------------------------
+// Purpose: Draw
+//------------------------------------------------------------------------
+void ImageManager::draw(const int &x, const int &y, const ImageKey &id, Rect *clip,
+						const TextureFlipType &flip) {
+	getTexture(id).draw(x, y, clip, flip);
+}
+
+//------------------------------------------------------------------------
+// Purpose: Dim the screen by drawing a 128 alpha black rectangle over it
+//------------------------------------------------------------------------
+void ImageManager::dimScreen() {
+	warning("STUB: ImageManger::DimScreen()");
+
+#if 0
+	SDL_SetRenderDrawBlendMode(gRenderer, SDL_BLENDMODE_BLEND);
+	SDL_SetRenderDrawColor(gRenderer, 0, 0, 0, 128);
+	SDL_RenderFillRect(gRenderer, NULL);
+#endif
+}
+
+void ImageManager::blackScreen() {
+	warning("STUB: ImageManger::blackScreen()");
+
+#if 0
+	SDL_SetRenderDrawBlendMode(gRenderer, SDL_BLENDMODE_BLEND);
+	SDL_SetRenderDrawColor(gRenderer, 0, 0, 0, 255);
+	SDL_RenderFillRect(gRenderer, NULL);
+#endif
+}
+//------------------------------------------------------------------------
+// Purpose: free resources
+//------------------------------------------------------------------------
+void ImageManager::quit() {
+	for (int i = 0; i < MAP_TOTAL; i++) {
+		for (auto &it : _map[i])
+			it._value.deleteImage();
+
+		_map[i].clear();
+	}
+}
+
+} // End of namespace Crab