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
|
/* 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 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.
*
*/
#include "lastexpress/graphics.h"
#include "common/rect.h"
#include "common/system.h"
#include "common/textconsole.h"
namespace LastExpress {
#define COLOR_KEY 0xFFFF
GraphicsManager::GraphicsManager() : _changed(false) {
const Graphics::PixelFormat format(2, 5, 5, 5, 0, 10, 5, 0, 0);
_screen.create(640, 480, format);
// Create the game surfaces
_backgroundA.create(640, 480, format);
_backgroundC.create(640, 480, format);
_overlay.create(640, 480, format);
_inventory.create(640, 480, format);
clear(kBackgroundAll);
}
GraphicsManager::~GraphicsManager() {
// Free the game surfaces
_screen.free();
_backgroundA.free();
_backgroundC.free();
_overlay.free();
_inventory.free();
}
void GraphicsManager::update() {
// Update the screen if needed and reset the status
if (_changed) {
mergePlanes();
updateScreen();
_changed = false;
}
}
void GraphicsManager::change() {
_changed = true;
}
void GraphicsManager::clear(BackgroundType type) {
clear(type, Common::Rect(640, 480));
}
void GraphicsManager::clear(BackgroundType type, const Common::Rect &rect) {
switch (type) {
default:
error("[GraphicsManager::clear] Unknown background type: %d", type);
break;
case kBackgroundA:
case kBackgroundC:
case kBackgroundOverlay:
case kBackgroundInventory:
getSurface(type)->fillRect(rect, COLOR_KEY);
break;
case kBackgroundAll:
_backgroundA.fillRect(rect, COLOR_KEY);
_backgroundC.fillRect(rect, COLOR_KEY);
_overlay.fillRect(rect, COLOR_KEY);
_inventory.fillRect(rect, COLOR_KEY);
break;
}
}
bool GraphicsManager::draw(Drawable *drawable, BackgroundType type, bool transition) {
// TODO handle transition properly
if (transition)
clear(type);
// TODO store rect for later use
Common::Rect rect = drawable->draw(getSurface(type));
return (!rect.isEmpty());
}
Graphics::Surface *GraphicsManager::getSurface(BackgroundType type) {
switch (type) {
default:
error("[GraphicsManager::getSurface] Unknown surface type: %d", type);
break;
case kBackgroundA:
return &_backgroundA;
case kBackgroundC:
return &_backgroundC;
case kBackgroundOverlay:
return &_overlay;
case kBackgroundInventory:
return &_inventory;
case kBackgroundAll:
error("[GraphicsManager::getSurface] Cannot return a surface for kBackgroundAll");
break;
}
}
// TODO optimize to only merge dirty rects
void GraphicsManager::mergePlanes() {
// Clear screen surface
_screen.fillRect(Common::Rect(640, 480), 0);
uint16 *screen = (uint16 *)_screen.getPixels();
uint16 *inventory = (uint16 *)_inventory.getPixels();
uint16 *overlay = (uint16 *)_overlay.getPixels();
uint16 *backgroundC = (uint16 *)_backgroundC.getPixels();
uint16 *backgroundA = (uint16 *)_backgroundA.getPixels();
for (int i = 0; i < 640 * 480; i++) {
if (*inventory != COLOR_KEY)
*screen = *inventory;
else if (*overlay != COLOR_KEY)
*screen = *overlay;
else if (*backgroundA != COLOR_KEY)
*screen = *backgroundA;
else if (*backgroundC != COLOR_KEY)
*screen = *backgroundC;
else
*screen = 0;
inventory++;
screen++;
overlay++;
backgroundA++;
backgroundC++;
}
}
void GraphicsManager::updateScreen() {
g_system->fillScreen(0);
g_system->copyRectToScreen(_screen.getPixels(), 640 * 2, 0, 0, 640, 480);
}
} // End of namespace LastExpress
|
