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
174
175
176
|
/* ScummVM - Scumm Interpreter
* Copyright (C) 2001 Ludvig Strigeus
* Copyright (C) 2001/2002 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Header$
*
*/
#ifndef GFX_H
#define GFX_H
enum { /* Camera modes */
CM_NORMAL = 1,
CM_FOLLOW_ACTOR = 2,
CM_PANNING = 3
};
struct CameraData { /* Camera state data */
ScummPoint _cur;
ScummPoint _dest;
ScummPoint _accel;
ScummPoint _last;
int _leftTrigger, _rightTrigger;
byte _follows, _mode;
bool _movingToActor;
};
struct VirtScreen { /* Virtual screen areas */
int number;
uint16 topline;
uint16 width, height;
int size;
byte alloctwobuffers;
bool scrollable;
uint16 xstart;
uint16 tdirty[80];
uint16 bdirty[80];
byte *screenPtr;
byte *backBuf;
};
struct MouseCursor { /* Mouse cursor */
int8 hotspot_x, hotspot_y;
byte colors[4];
byte data[32];
};
struct ColorCycle { /* Palette cycles */
uint16 delay;
uint16 counter;
uint16 flags;
byte start;
byte end;
};
struct BlastObject { /* BlastObjects to draw */
uint16 number;
int16 posX, posY;
uint16 width, height;
uint16 scaleX, scaleY;
uint16 image;
uint16 mode;
};
#if !defined(__GNUC__)
#pragma START_PACK_STRUCTS
#endif
struct BompHeader { /* Bomp header */
union {
struct {
uint16 unk;
uint16 width, height;
} GCC_PACK old;
struct {
uint32 width, height;
} GCC_PACK v8;
} GCC_PACK;
} GCC_PACK;
#if !defined(__GNUC__)
#pragma END_PACK_STRUCTS
#endif
struct BompDrawData { /* Bomp graphics data */
byte *out;
int outwidth, outheight;
int x, y;
byte scale_x, scale_y;
byte *dataptr;
int srcwidth, srcheight;
uint16 shadowMode;
};
class Gdi {
friend class Scumm; // Mostly for the code in saveload.cpp ...
public:
Scumm *_vm;
int _numZBuffer;
int _imgBufOffs[8];
byte _disable_zbuffer;
int32 _numStrips;
int16 _mask_top, _mask_bottom, _mask_right, _mask_left;
protected:
byte *_readPtr;
bool _useOrDecompress;
byte _cursorActive;
byte *_mask_ptr;
byte *_mask_ptr_dest;
byte _palette_mod;
byte _decomp_shr, _decomp_mask;
byte _transparentColor;
uint32 _vertStripNextInc;
/* Bitmap decompressors */
bool decompressBitmap(byte *bgbak_ptr, byte *smap_ptr, int numLinesToProcess);
void unkDecodeA(byte *dst, byte *src, int height);
void unkDecodeA_trans(byte *dst, byte *src, int height);
void unkDecodeB(byte *dst, byte *src, int height);
void unkDecodeB_trans(byte *dst, byte *src, int height);
void unkDecodeC(byte *dst, byte *src, int height);
void unkDecodeC_trans(byte *dst, byte *src, int height);
void unkDecode7(byte *dst, byte *src, int height);
void unkDecode8(byte *dst, byte *src, int height);
void unkDecode9(byte *dst, byte *src, int height);
void unkDecode10(byte *dst, byte *src, int height);
void unkDecode11(byte *dst, byte *src, int height);
void draw8ColWithMasking(byte *dst, byte *src, int height, byte *mask);
void draw8Col(byte *dst, byte *src, int height);
void clear8ColWithMasking(byte *dst, int height, byte *mask);
void clear8Col(byte *dst, int height);
void decompressMaskImgOr(byte *dst, byte *src, int height);
void decompressMaskImg(byte *dst, byte *src, int height);
void drawStripToScreen(VirtScreen *vs, int x, int w, int t, int b);
void updateDirtyScreen(VirtScreen *vs);
public:
void drawBitmap(byte *ptr, VirtScreen *vs, int x, int y, const int h, int stripnr, int numstrip, byte flag);
void clearUpperMask();
void disableZBuffer() { _disable_zbuffer++; }
void enableZBuffer() { _disable_zbuffer--; }
void resetBackground(int top, int bottom, int strip);
enum DrawBitmapFlags {
dbAllowMaskOr = 1,
dbDrawMaskOnAll = 2,
dbClear = 4
};
};
#endif
|
