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engines/sword25/gfx/staticbitmap.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 Broken Sword 2.5 engine
+ *
+ * Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
+ *
+ * Licensed under GNU GPL v2
+ *
+ */
+
+#include "sword25/gfx/staticbitmap.h"
+#include "sword25/gfx/bitmapresource.h"
+#include "sword25/package/packagemanager.h"
+#include "sword25/kernel/outputpersistenceblock.h"
+#include "sword25/kernel/inputpersistenceblock.h"
+
+namespace Sword25 {
+
+StaticBitmap::StaticBitmap(RenderObjectPtr<RenderObject> parentPtr, const Common::String &filename) :
+	Bitmap(parentPtr, TYPE_STATICBITMAP) {
+	// Das BS_Bitmap konnte nicht erzeugt werden, daher muss an dieser Stelle abgebrochen werden.
+	if (!_initSuccess)
+		return;
+
+	_initSuccess = initBitmapResource(filename);
+}
+
+StaticBitmap::StaticBitmap(InputPersistenceBlock &reader, RenderObjectPtr<RenderObject> parentPtr, uint handle) :
+	Bitmap(parentPtr, TYPE_STATICBITMAP, handle) {
+	_initSuccess = unpersist(reader);
+}
+
+bool StaticBitmap::initBitmapResource(const Common::String &filename) {
+	// Bild-Resource laden
+	Resource *resourcePtr = Kernel::getInstance()->getResourceManager()->requestResource(filename);
+	if (!resourcePtr) {
+		warning("Could not request resource \"%s\".", filename.c_str());
+		return false;
+	}
+	if (resourcePtr->getType() != Resource::TYPE_BITMAP) {
+		error("Requested resource \"%s\" is not a bitmap.", filename.c_str());
+		return false;
+	}
+
+	BitmapResource *bitmapPtr = static_cast<BitmapResource *>(resourcePtr);
+
+	// Den eindeutigen Dateinamen zum späteren Referenzieren speichern
+	_resourceFilename = bitmapPtr->getFileName();
+
+	// RenderObject Eigenschaften aktualisieren
+	_originalWidth = _width = bitmapPtr->getWidth();
+	_originalHeight = _height = bitmapPtr->getHeight();
+
+	_isSolid = bitmapPtr->isSolid();
+
+	// Bild-Resource freigeben
+	bitmapPtr->release();
+
+	return true;
+}
+
+StaticBitmap::~StaticBitmap() {
+}
+
+bool StaticBitmap::doRender(RectangleList *updateRects) {
+	// Bitmap holen
+	Resource *resourcePtr = Kernel::getInstance()->getResourceManager()->requestResource(_resourceFilename);
+	assert(resourcePtr);
+	assert(resourcePtr->getType() == Resource::TYPE_BITMAP);
+	BitmapResource *bitmapResourcePtr = static_cast<BitmapResource *>(resourcePtr);
+
+	// Framebufferobjekt holen
+	GraphicEngine *gfxPtr = Kernel::getInstance()->getGfx();
+	assert(gfxPtr);
+
+	// Bitmap zeichnen
+	bool result;
+	if (_scaleFactorX == 1.0f && _scaleFactorY == 1.0f) {
+		result = bitmapResourcePtr->blit(_absoluteX, _absoluteY,
+		                                 (_flipV ? Graphics::FLIP_V : 0) |
+		                                 (_flipH ? Graphics::FLIP_H : 0),
+		                                 0, _modulationColor, -1, -1,
+										 updateRects);
+	} else {
+		result = bitmapResourcePtr->blit(_absoluteX, _absoluteY,
+		                                 (_flipV ? Graphics::FLIP_V : 0) |
+		                                 (_flipH ? Graphics::FLIP_H : 0),
+		                                 0, _modulationColor, _width, _height,
+										 updateRects);
+	}
+
+	// Resource freigeben
+	bitmapResourcePtr->release();
+
+	return result;
+}
+
+uint StaticBitmap::getPixel(int x, int y) const {
+	assert(x >= 0 && x < _width);
+	assert(y >= 0 && y < _height);
+
+	Resource *pResource = Kernel::getInstance()->getResourceManager()->requestResource(_resourceFilename);
+	assert(pResource->getType() == Resource::TYPE_BITMAP);
+	BitmapResource *pBitmapResource = static_cast<BitmapResource *>(pResource);
+	uint result = pBitmapResource->getPixel(x, y);
+	pResource->release();
+	return result;
+}
+
+bool StaticBitmap::setContent(const byte *pixeldata, uint size, uint offset, uint stride) {
+	error("SetContent() ist not supported with this object.");
+	return false;
+}
+
+bool StaticBitmap::isAlphaAllowed() const {
+	Resource *pResource = Kernel::getInstance()->getResourceManager()->requestResource(_resourceFilename);
+	assert(pResource->getType() == Resource::TYPE_BITMAP);
+	bool result = static_cast<BitmapResource *>(pResource)->isAlphaAllowed();
+	pResource->release();
+	return result;
+}
+
+bool StaticBitmap::isColorModulationAllowed() const {
+	Resource *pResource = Kernel::getInstance()->getResourceManager()->requestResource(_resourceFilename);
+	assert(pResource->getType() == Resource::TYPE_BITMAP);
+	bool result = static_cast<BitmapResource *>(pResource)->isColorModulationAllowed();
+	pResource->release();
+	return result;
+}
+
+bool StaticBitmap::isScalingAllowed() const {
+	Resource *pResource = Kernel::getInstance()->getResourceManager()->requestResource(_resourceFilename);
+	assert(pResource->getType() == Resource::TYPE_BITMAP);
+	bool result = static_cast<BitmapResource *>(pResource)->isScalingAllowed();
+	pResource->release();
+	return result;
+}
+
+bool StaticBitmap::persist(OutputPersistenceBlock &writer) {
+	bool result = true;
+
+	result &= Bitmap::persist(writer);
+	writer.writeString(_resourceFilename);
+
+	result &= RenderObject::persistChildren(writer);
+
+	return result;
+}
+
+bool StaticBitmap::unpersist(InputPersistenceBlock &reader) {
+	bool result = true;
+
+	result &= Bitmap::unpersist(reader);
+	Common::String resourceFilename;
+	reader.readString(resourceFilename);
+	// We may not have saves, and we actually do not need to
+	// restore them. So do not even try to load them.
+	if (!resourceFilename.hasPrefix("/saves"))
+		result &= initBitmapResource(resourceFilename);
+
+	result &= RenderObject::unpersistChildren(reader);
+
+	return reader.isGood() && result;
+}
+
+} // End of namespace Sword25