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Diffstat (limited to 'engines/sword25/gfx/dynamicbitmap.cpp')
| -rw-r--r-- | engines/sword25/gfx/dynamicbitmap.cpp | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/engines/sword25/gfx/dynamicbitmap.cpp b/engines/sword25/gfx/dynamicbitmap.cpp new file mode 100644 index 0000000000..91d46e99f4 --- /dev/null +++ b/engines/sword25/gfx/dynamicbitmap.cpp @@ -0,0 +1,193 @@ +/* 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 2 + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * $URL$ + * $Id$ + * + */ + +/* + * This code is based on Broken Sword 2.5 engine + * + * Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer + * + * Licensed under GNU GPL v2 + * + */ + +// ----------------------------------------------------------------------------- +// Includes +// ----------------------------------------------------------------------------- + +#include "sword25/gfx/dynamicbitmap.h" +#include "sword25/gfx/bitmapresource.h" +#include "sword25/package/packagemanager.h" +#include "sword25/kernel/inputpersistenceblock.h" + +namespace Sword25 { + +// ----------------------------------------------------------------------------- +// Logging +// ----------------------------------------------------------------------------- + +#define BS_LOG_PREFIX "DYNAMICBITMAP" + +// ----------------------------------------------------------------------------- +// Konstruktion / Destruktion +// ----------------------------------------------------------------------------- + +DynamicBitmap::DynamicBitmap(RenderObjectPtr<RenderObject> parentPtr, uint width, uint height) : + Bitmap(parentPtr, TYPE_DYNAMICBITMAP) { + // Das BS_Bitmap konnte nicht erzeugt werden, daher muss an dieser Stelle abgebrochen werden. + if (!_initSuccess) return; + + _initSuccess = createRenderedImage(width, height); +} + +// ----------------------------------------------------------------------------- + +DynamicBitmap::DynamicBitmap(InputPersistenceBlock &reader, RenderObjectPtr<RenderObject> parentPtr, uint handle) : + Bitmap(parentPtr, TYPE_DYNAMICBITMAP, handle) { + _initSuccess = unpersist(reader); +} + +// ----------------------------------------------------------------------------- + +bool DynamicBitmap::createRenderedImage(uint width, uint height) { + // RenderedImage mit den gewünschten Maßen erstellen + bool result = false; + _image.reset(new RenderedImage(width, height, result)); + + _originalWidth = _width = width; + _originalHeight = _height = height; + + return result; +} + +// ----------------------------------------------------------------------------- + +DynamicBitmap::~DynamicBitmap() { +} + +// ----------------------------------------------------------------------------- + +uint DynamicBitmap::getPixel(int x, int y) const { + BS_ASSERT(x >= 0 && x < _width); + BS_ASSERT(y >= 0 && y < _height); + + return _image->getPixel(x, y); +} + +// ----------------------------------------------------------------------------- + +bool DynamicBitmap::doRender() { + // Framebufferobjekt holen + GraphicEngine *pGfx = static_cast<GraphicEngine *>(Kernel::GetInstance()->GetService("gfx")); + BS_ASSERT(pGfx); + + // Bitmap zeichnen + bool result; + if (_scaleFactorX == 1.0f && _scaleFactorY == 1.0f) { + result = _image->blit(_absoluteX, _absoluteY, + (_flipV ? BitmapResource::FLIP_V : 0) | + (_flipH ? BitmapResource::FLIP_H : 0), + 0, _modulationColor, -1, -1); + } else { + result = _image->blit(_absoluteX, _absoluteY, + (_flipV ? BitmapResource::FLIP_V : 0) | + (_flipH ? BitmapResource::FLIP_H : 0), + 0, _modulationColor, _width, _height); + } + + return result; +} + +// ----------------------------------------------------------------------------- + +bool DynamicBitmap::setContent(const byte *pixeldata, uint size, uint offset, uint stride) { + return _image->setContent(pixeldata, size, offset, stride); +} + +// ----------------------------------------------------------------------------- +// Auskunftsmethoden +// ----------------------------------------------------------------------------- + +bool DynamicBitmap::isScalingAllowed() const { + return _image->isScalingAllowed(); +} + +// ----------------------------------------------------------------------------- + +bool DynamicBitmap::isAlphaAllowed() const { + return _image->isAlphaAllowed(); +} + +// ----------------------------------------------------------------------------- + +bool DynamicBitmap::isColorModulationAllowed() const { + return _image->isColorModulationAllowed(); +} + +// ----------------------------------------------------------------------------- + +bool DynamicBitmap::isSetContentAllowed() const { + return true; +} + +// ----------------------------------------------------------------------------- +// Persistenz +// ----------------------------------------------------------------------------- + +bool DynamicBitmap::persist(OutputPersistenceBlock &writer) { + bool result = true; + + result &= Bitmap::persist(writer); + + // Bilddaten werden nicht gespeichert. Dies ist auch nicht weiter von bedeutung, da BS_DynamicBitmap nur vom Videoplayer benutzt wird. + // Während ein Video abläuft kann niemals gespeichert werden. BS_DynamicBitmap kann nur der Vollständigkeit halber persistiert werden. + BS_LOG_WARNINGLN("Persisting a BS_DynamicBitmap. Bitmap content is not persisted."); + + result &= RenderObject::persistChildren(writer); + + return result; +} + +bool DynamicBitmap::unpersist(InputPersistenceBlock &reader) { + bool result = true; + + result &= Bitmap::unpersist(reader); + + // Ein RenderedImage mit den gespeicherten Maßen erstellen. + result &= createRenderedImage(_width, _height); + + // Bilddaten werden nicht gespeichert (s.o.). + BS_LOG_WARNINGLN("Unpersisting a BS_DynamicBitmap. Bitmap contents are missing."); + + // Bild mit durchsichtigen Bilddaten initialisieren. + byte *transparentImageData = (byte *)calloc(_width * _height * 4, 1); + _image->setContent(transparentImageData, _width * _height); + free(transparentImageData); + + result &= RenderObject::unpersistChildren(reader); + + return reader.isGood() && result; +} + +} // End of namespace Sword25 |