aboutsummaryrefslogtreecommitdiff
path: root/kyra/screen.h
blob: 2642ba782a23a07375a19b6ff974d9b16dccb2b9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
/* ScummVM - Scumm Interpreter
 * Copyright (C) 2004-2005 The ScummVM project
 *
 * 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.
 *
 * $Header$
 *
 */

#ifndef KYRASCREEN_H
#define KYRASCREEN_H

#include "common/util.h"

class OSystem;

namespace Kyra {

class KyraEngine;

struct ScreenDim {
	uint16 sx;
	uint16 sy;
	uint16 w;
	uint16 h;
	uint16 unk8;
	uint16 unkA;
	uint16 unkC;
	uint16 unkE;
};

struct Font {
	uint8 *fontData;
	uint8 *charWidthTable;
	uint16 charBoxHeight;
	uint16 charBitmapOffset;
	uint16 charWidthTableOffset;
	uint16 charHeightTableOffset;
};

class Screen {
public:

	enum {
		SCREEN_W = 320,
		SCREEN_H = 200,
		SCREEN_PAGE_SIZE = 320 * 200 + 1024,
		SCREEN_PAGE_NUM  = 16
	};

	enum CopyRegionFlags {
		CR_X_FLIPPED  = 0x01,
		CR_CLIPPED    = 0x02
	};

	enum DrawShapeFlags {
		DSF_X_FLIPPED  = 0x01,
		DSF_Y_FLIPPED  = 0x02,
		DSF_SCALE      = 0x04,
		DSF_WND_COORDS = 0x10,
		DSF_CENTER     = 0x20
	};
	
	enum FontId {
		FID_6_FNT = 0,
		FID_8_FNT,
		FID_NUM
	};
	
	Screen(KyraEngine *vm, OSystem *system);
	~Screen();

	void updateScreen();
	uint8 *getPagePtr(int pageNum);
	void clearPage(int pageNum);
	int setCurPage(int pageNum);
	void clearCurPage();
	uint8 getPagePixel(int pageNum, int x, int y);
	void setPagePixel(int pageNum, int x, int y, uint8 color);
	void fadeFromBlack();
	void fadeToBlack();
	void fadePalette(const uint8 *palData, int delay);
	void setScreenPalette(const uint8 *palData);
	void copyToPage0(int y, int h, uint8 page, uint8 *seqBuf);
	void copyRegion(int x1, int y1, int x2, int y2, int w, int h, int srcPage, int dstPage, int flags=0);
	void copyBlockToPage(int pageNum, int x, int y, int w, int h, const uint8 *src);
	void copyCurPageBlock(int x, int y, int h, int w, uint8 *dst);
	void shuffleScreen(int sx, int sy, int w, int h, int srcPage, int dstPage, int ticks, bool transparent);
	void fillRect(int x1, int y1, int x2, int y2, uint8 color, int pageNum = -1);
	void setAnimBlockPtr(int size);
	void setTextColorMap(const uint8 *cmap);
	void setTextColor(const uint8 *cmap, int a, int b);
	void loadFont(FontId fontId, uint8 *fontData);
	FontId setFont(FontId fontId);
	int getCharWidth(uint8 c) const;
	int getTextWidth(const char *str) const;
	void printText(const char *str, int x, int y, uint8 color1, uint8 color2);
	void drawChar(uint8 c, int x, int y);
	void setScreenDim(int dim);
	void drawShapePlotPixelCallback1(uint8 *dst, uint8 color);
	void drawShape(uint8 pageNum, const uint8 *shapeData, int x, int y, int sd, int flags, int *flagsTable, bool itemShape=false);
	static void decodeFrame3(const uint8 *src, uint8 *dst, uint32 size);
	static void decodeFrame4(const uint8 *src, uint8 *dst, uint32 dstSize);
	static void decodeFrameDelta(uint8 *dst, const uint8 *src);
	static void decodeFrameDeltaPage(uint8 *dst, const uint8 *src, int pitch);
	uint8 *encodeShape(int x, int y, int w, int h, int flags);
	void copyRegionToBuffer(int pageNum, int x, int y, int w, int h, uint8 *dest);
	
	int getRectSize(int x, int y);
	void hideMouse();
	void showMouse();
	void setShapePages(int page1, int page2);
	byte *setMouseCursor(int x, int y, byte *shape);

	int _charWidth;
	int _charOffset;
	int _curPage;
	uint8 *_currentPalette;
	
	typedef void (Screen::*DrawShapePlotPixelCallback)(uint8 *dst, uint8 c);

private:
	int16 encodeShapeAndCalculateSize(uint8 *from, uint8 *to, int size);
	void restoreMouseRect();
	void copyMouseToScreen();
	void copyScreenFromRect(int x, int y, int w, int h, uint8 *ptr);
	void copyScreenToRect(int x, int y, int w, int h, uint8 *ptr);

	uint8 *_pagePtrs[16];
	uint8 *_shapePages[2];
	uint8 *_screenPalette;
	const ScreenDim *_curDim;
	FontId _currentFont;
	Font _fonts[FID_NUM];
	uint8 _textColorsMap[16];
	uint8 *_decodeShapeBuffer;
	int _decodeShapeBufferSize;
	uint8 *_animBlockPtr;
	int _animBlockSize;
	
	uint8 *_mouseShape;
	uint8 *_mouseRect;
	int _mouseShapeSize;
	int _mouseRectSize;
	int _mouseDrawX, _mouseDrawY;
	int _mouseDrawWidth, _mouseDrawHeight;
	int _mouseWidth, _mouseHeight;
	int _mouseXOffset, _mouseYOffset;

	OSystem *_system;
	KyraEngine *_vm;
	
	static const ScreenDim _screenDimTable[];
	static const int _screenDimTableCount;
	static const DrawShapePlotPixelCallback _drawShapePlotPixelTable[];
	static const int _drawShapePlotPixelCount;
};

} // End of namespace Kyra

#endif