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engines/sword25/gfx/image/vectorimage.h

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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
+ *
+ */
+
+#ifndef SWORD25_VECTORIMAGE_H
+#define SWORD25_VECTORIMAGE_H
+
+// -----------------------------------------------------------------------------
+// Includes
+// -----------------------------------------------------------------------------
+
+#include "sword25/kernel/common.h"
+#include "sword25/gfx/image/image.h"
+#include "common/rect.h"
+
+#include "art.h"
+
+namespace Sword25 {
+
+class VectorImage;
+
+/**
+	@brief Pfadinformationen zu BS_VectorImageElement Objekten
+
+	Jedes BS_VectorImageElement besteht aus Kantenzügen, oder auch Pfaden. Jeder dieser Pfad hat Eigenschaften, die in Objekten diesen Typs
+	gespeichert werden.
+*/
+
+class VectorPathInfo {
+public:
+	VectorPathInfo(ArtBpath *vec, int len, uint lineStyle, uint fillStyle0, uint fillStyle1) :
+		_vec(vec), _lineStyle(lineStyle), _fillStyle0(fillStyle0), _fillStyle1(fillStyle1), _len(len) {}
+
+	VectorPathInfo() {
+		_lineStyle = _fillStyle0 = _fillStyle1 = _len = 0;
+		_vec = 0;
+	}
+
+	ArtBpath *getVec() const {
+		return _vec;
+	}
+	int getVecLen() const {
+		return _len;
+	}
+	uint getLineStyle() const {
+		return _lineStyle;
+	}
+	uint getFillStyle0() const {
+		return _fillStyle0;
+	}
+	uint getFillStyle1() const {
+		return _fillStyle1;
+	}
+
+private:
+	ArtBpath *_vec;
+	uint _lineStyle;
+	uint _fillStyle0;
+	uint _fillStyle1;
+	uint _len;
+};
+
+/**
+	@brief Ein Element eines Vektorbild. Ein BS_VectorImage besteht aus diesen Elementen, die jeweils einen Teil der Graphik definieren.
+		   Werden alle Elemente eines Vektorbildes übereinandergelegt, ergibt sich das komplette Bild.
+*/
+class VectorImageElement {
+	friend class VectorImage;
+public:
+	uint getPathCount() const {
+		return _pathInfos.size();
+	}
+	const VectorPathInfo &getPathInfo(uint pathNr) const {
+		assert(pathNr < getPathCount());
+		return _pathInfos[pathNr];
+	}
+
+	double getLineStyleWidth(uint lineStyle) const {
+		assert(lineStyle < _lineStyles.size());
+		return _lineStyles[lineStyle].width;
+	}
+
+	uint getLineStyleCount() const {
+		return _lineStyles.size();
+	}
+
+	uint32 getLineStyleColor(uint lineStyle) const {
+		assert(lineStyle < _lineStyles.size());
+		return _lineStyles[lineStyle].color;
+	}
+
+	uint getFillStyleCount() const {
+		return _fillStyles.size();
+	}
+
+	uint32 getFillStyleColor(uint fillStyle) const {
+		assert(fillStyle < _fillStyles.size());
+		return _fillStyles[fillStyle];
+	}
+
+	const Common::Rect &getBoundingBox() const {
+		return _boundingBox;
+	}
+
+private:
+	struct LineStyleType {
+		LineStyleType(double width_, uint32 color_) : width(width_), color(color_) {}
+		LineStyleType() {
+			width = 0;
+			color = 0;
+		}
+		double width;
+		uint32 color;
+	};
+
+	Common::Array<VectorPathInfo> _pathInfos;
+	Common::Array<LineStyleType> _lineStyles;
+	Common::Array<uint32>  _fillStyles;
+	Common::Rect _boundingBox;
+};
+
+
+/**
+	@brief Eine Vektorgraphik
+
+	Objekte dieser Klasse enthalten die Informationen eines SWF-Shapes.
+*/
+
+class VectorImage : public Image {
+public:
+	VectorImage(const byte *pFileData, uint fileSize, bool &success, const Common::String &fname);
+	~VectorImage() override;
+
+	uint getElementCount() const {
+		return _elements.size();
+	}
+	const VectorImageElement &getElement(uint elementNr) const {
+		assert(elementNr < _elements.size());
+		return _elements[elementNr];
+	}
+	const Common::Rect &getBoundingBox() const {
+		return _boundingBox;
+	}
+
+	//
+	// Die abstrakten Methoden von BS_Image
+	//
+	int getWidth() const override {
+		return _boundingBox.width();
+	}
+	int getHeight() const override {
+		return _boundingBox.height();
+	}
+	bool fill(const Common::Rect *pFillRect = 0, uint color = BS_RGB(0, 0, 0)) override;
+
+	void render(int width, int height);
+
+	uint getPixel(int x, int y) override;
+	bool isBlitSource() const override {
+		return true;
+	}
+	bool isBlitTarget() const override {
+		return false;
+	}
+	bool isScalingAllowed() const override {
+		return true;
+	}
+	bool isFillingAllowed() const override {
+		return false;
+	}
+	bool isAlphaAllowed() const override {
+		return true;
+	}
+	bool isColorModulationAllowed() const override {
+		return true;
+	}
+	bool isSetContentAllowed() const override {
+		return false;
+	}
+	bool setContent(const byte *pixeldata, uint size, uint offset, uint stride) override;
+	bool blit(int posX = 0, int posY = 0,
+	                  int flipping = Graphics::FLIP_NONE,
+	                  Common::Rect *pPartRect = NULL,
+	                  uint color = BS_ARGB(255, 255, 255, 255),
+	                  int width = -1, int height = -1,
+					  RectangleList *updateRects = 0) override;
+
+	class SWFBitStream;
+
+private:
+	bool parseDefineShape(uint shapeType, SWFBitStream &bs);
+	bool parseStyles(uint shapeType, SWFBitStream &bs, uint &numFillBits, uint &numLineBits);
+
+	ArtBpath *storeBez(ArtBpath *bez, int lineStyle, int fillStyle0, int fillStyle1, int *bezNodes, int *bezAllocated);
+	Common::Array<VectorImageElement>    _elements;
+	Common::Rect                         _boundingBox;
+
+	byte *_pixelData;
+
+	Common::String _fname;
+	uint _bgColor;
+};
+
+} // End of namespace Sword25
+
+#endif