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engines/bladerunner/slice_animations.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 BLADERUNNER_SLICE_ANIMATIONS_H
+#define BLADERUNNER_SLICE_ANIMATIONS_H
+
+#include "common/array.h"
+#include "common/file.h"
+#include "common/str.h"
+#include "common/types.h"
+
+#include "bladerunner/color.h"
+#include "bladerunner/vector.h"
+
+
+namespace BladeRunner {
+
+class BladeRunnerEngine;
+
+
+class SliceAnimations {
+	friend class SliceRenderer;
+
+	struct Animation {
+		uint32 frameCount;
+		uint32 frameSize;
+		float  fps;
+		Vector3 positionChange;
+		float facingChange;
+		uint32 offset;
+	};
+
+	struct Palette {
+		uint32 value[256];
+		Color256 color[256];
+
+	//	uint16 &operator[](size_t i) { return color555[i]; }
+	};
+
+	struct Page {
+		void   *_data;
+		uint32 _lastAccess;
+		// Use a doubly linked list to sort pages by access time
+		Page   *_prevPage;
+		Page   *_nextPage;
+
+		Page() : _data(nullptr), _lastAccess(0), _prevPage(nullptr), _nextPage(nullptr) {}
+	};
+
+	struct PageFile {
+		int                  _fileNumber;
+		SliceAnimations     *_sliceAnimations;
+		Common::File         _files[5];
+		Common::Array<int32> _pageOffsets;
+		Common::Array<int8>  _pageOffsetsFileIdx;
+
+		PageFile(SliceAnimations *sliceAnimations) : _sliceAnimations(sliceAnimations), _fileNumber(-1) {}
+
+		bool  open(const Common::Path &name, int8 fileIdx);
+		void  close(int8 fileIdx);
+		void *loadPage(uint32 page);
+	};
+
+	BladeRunnerEngine *_vm;
+
+	uint32 _timestamp;
+	uint32 _pageSize;
+	uint32 _pageCount;
+	uint32 _paletteCount;
+
+	Common::Array<Palette>      _palettes;
+	Common::Array<Animation>    _animations;
+	Common::Array<Page>         _pages;
+	Page                       *_lastUsedPage;
+
+	PageFile _coreAnimPageFile;
+	PageFile _framesPageFile;
+
+	void updatePagesList(Page &page, bool newPage);
+	void cleanupOutdatedPages();
+
+public:
+	SliceAnimations(BladeRunnerEngine *vm)
+		: _vm(vm)
+		, _coreAnimPageFile(this)
+		, _framesPageFile(this)
+		, _timestamp(0)
+		, _pageSize(0)
+		, _pageCount(0)
+		, _paletteCount(0)
+		, _lastUsedPage(nullptr) {}
+	~SliceAnimations();
+
+	bool open(const Common::String &name);
+
+	bool openCoreAnim();
+	bool openFrames(int fileNumber);
+
+	Palette &getPalette(int i) { return _palettes[i]; };
+	void    *getFramePtr(uint32 animation, uint32 frame);
+
+	int   getFrameCount(int animation) const { return _animations[animation].frameCount; }
+	float getFPS(int animation) const { return _animations[animation].fps; }
+
+	Vector3 getPositionChange(int animation) const;
+	float   getFacingChange(int animation) const;
+};
+
+} // End of namespace BladeRunner
+
+#endif