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engines/illusions/resources/backgroundresource.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/>.
+ *
+ */
+
+#ifndef ILLUSIONS_BACKGROUNDRESOURCE_H
+#define ILLUSIONS_BACKGROUNDRESOURCE_H
+
+#include "illusions/camera.h"
+#include "illusions/graphics.h"
+#include "illusions/pathfinder.h"
+#include "illusions/resourcesystem.h"
+#include "graphics/surface.h"
+
+#include "common/array.h"
+#include "common/file.h"
+#include "common/list.h"
+#include "common/memstream.h"
+#include "common/rect.h"
+#include "common/substream.h"
+#include "common/system.h"
+
+namespace Illusions {
+
+class IllusionsEngine;
+struct Sequence;
+
+class BackgroundResourceLoader : public BaseResourceLoader {
+public:
+	BackgroundResourceLoader(IllusionsEngine *vm) : _vm(vm) {}
+	~BackgroundResourceLoader() override {}
+	void load(Resource *resource) override;
+	bool isFlag(int flag) override;
+protected:
+	IllusionsEngine *_vm;
+};
+
+struct TileMap {
+	int16 _width, _height;
+	//field_4 dd
+	byte *_map;
+	void load(byte *dataStart, Common::SeekableReadStream &stream);
+};
+
+struct BgInfo {
+	uint32 _flags;
+	//field_4 dw
+	int16 _priorityBase;
+	SurfInfo _surfInfo;
+	Common::Point _panPoint;
+	TileMap _tileMap;
+	byte *_tilePixels;
+	void load(byte *dataStart, Common::SeekableReadStream &stream);
+};
+
+class PriorityLayer {
+public:
+	void load(byte *dataStart, Common::SeekableReadStream &stream);
+	int getPriority(Common::Point pos);
+protected:
+	int16 _width, _height;
+	int16 _mapWidth, _mapHeight;
+	byte *_map, *_values;
+};
+
+class ScaleLayer {
+public:
+	void load(byte *dataStart, Common::SeekableReadStream &stream);
+	int getScale(Common::Point pos);
+protected:
+	int16 _height;
+	byte *_values;
+};
+
+class RegionLayer {
+public:
+	void load(byte *dataStart, Common::SeekableReadStream &stream);
+	int getRegionIndex(Common::Point pos);
+	uint32 getRegionSequenceId(int regionIndex);
+protected:
+	uint32 _unk;
+	byte *_regionSequenceIds;
+	int16 _width, _height;
+	int16 _mapWidth, _mapHeight;
+	byte *_map, *_values;
+};
+
+struct Palette {
+	uint16 _count;
+	uint16 _unk;
+	byte *_palette;
+	void load(byte *dataStart, Common::SeekableReadStream &stream);
+};
+
+struct BackgroundObject {
+	uint32 _objectId;
+	uint16 _flags;
+	int16 _priority;
+	byte *_pointsConfig;
+	void load(byte *dataStart, Common::SeekableReadStream &stream);
+};
+
+struct PathWalkPoints {
+	PointArray *_points;
+	PathWalkPoints() : _points(0) {}
+	~PathWalkPoints() { delete _points; }
+	void load(byte *dataStart, Common::SeekableReadStream &stream);
+};
+
+struct PathWalkRects {
+	PathLines *_rects;
+	PathWalkRects() : _rects(0) {}
+	~PathWalkRects() { delete _rects; }
+	void load(byte *dataStart, Common::SeekableReadStream &stream);
+};
+
+class BackgroundResource {
+public:
+	BackgroundResource();
+	~BackgroundResource();
+	void load(byte *data, uint32 dataSize);
+	int findMasterBgIndex();
+	PriorityLayer *getPriorityLayer(uint index);
+	ScaleLayer *getScaleLayer(uint index);
+	RegionLayer *getRegionLayer(uint index);
+	PathWalkPoints *getPathWalkPoints(uint index);
+	PathWalkRects *getPathWalkRects(uint index);
+	Palette *getPalette(uint index);
+	bool findNamedPoint(uint32 namedPointId, Common::Point &pt);
+public:
+
+	uint _paletteIndex;
+
+	uint _bgInfosCount;
+	BgInfo *_bgInfos;
+
+	uint _priorityLayersCount;
+	PriorityLayer *_priorityLayers;
+
+	uint _scaleLayersCount;
+	ScaleLayer *_scaleLayers;
+
+	uint _regionLayersCount;
+	RegionLayer *_regionLayers;
+
+	uint _regionSequencesCount;
+	Sequence *_regionSequences;
+
+	uint _backgroundObjectsCount;
+	BackgroundObject *_backgroundObjects;
+
+	uint _pathWalkPointsCount;
+	PathWalkPoints *_pathWalkPoints;
+
+	uint _pathWalkRectsCount;
+	PathWalkRects *_pathWalkRects;
+
+	NamedPoints _namedPoints;
+
+	uint _palettesCount;
+	Palette *_palettes;
+
+};
+
+const uint kMaxBackgroundItemSurfaces = 3;
+
+class BackgroundInstance : public ResourceInstance {
+public:
+	BackgroundInstance(IllusionsEngine *vm);
+	~BackgroundInstance();
+	void load(Resource *resource) override;
+	void unload() override;
+	void pause() override;
+	void unpause() override;
+public:
+	IllusionsEngine *_vm;
+	uint32 _sceneId;
+	int _pauseCtr;
+	BackgroundResource *_bgRes;
+	Common::Point _panPoints[kMaxBackgroundItemSurfaces];
+	Graphics::Surface *_surfaces[kMaxBackgroundItemSurfaces];
+	CameraState _savedCameraState;
+	byte *_savedPalette;
+	void registerResources();
+	void unregisterResources();
+	void initSurface();
+	void freeSurface();
+	void drawTiles(Graphics::Surface *surface, TileMap &tileMap, byte *tilePixels);
+	void drawTiles8(Graphics::Surface *surface, TileMap &tileMap, byte *tilePixels);
+	void drawTiles16(Graphics::Surface *surface, TileMap &tileMap, byte *tilePixels);
+};
+
+class BackgroundInstanceList {
+public:
+	BackgroundInstanceList(IllusionsEngine *vm);
+	~BackgroundInstanceList();
+	BackgroundInstance *createBackgroundInstance(Resource *resource);
+	void removeBackgroundInstance(BackgroundInstance *backgroundInstance);
+	void pauseBySceneId(uint32 sceneId);
+	void unpauseBySceneId(uint32 sceneId);
+	BackgroundInstance *findActiveBackgroundInstance();
+	BackgroundInstance *findBackgroundByResource(BackgroundResource *backgroundResource);
+	BackgroundResource *getActiveBgResource();
+	WidthHeight getMasterBgDimensions();
+	void refreshPan();
+	bool findActiveBackgroundNamedPoint(uint32 namedPointId, Common::Point &pt);
+//protected:
+public:
+	typedef Common::List<BackgroundInstance*> Items;
+	typedef Items::iterator ItemsIterator;
+	IllusionsEngine *_vm;
+	Items _items;
+};
+
+} // End of namespace Illusions
+
+#endif // ILLUSIONS_BACKGROUNDRESOURCE_H