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
|
/* ScummVM - Scumm Interpreter
* Copyright (C) 2006 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.
*
* $URL$
* $Id$
*/
#include "graphics/paletteman.h"
#include "common/system.h"
#include "common/stack.h"
DECLARE_SINGLETON(Graphics::PaletteManager);
namespace Graphics {
static bool g_initialized = false;
PaletteManager::PaletteManager() {
if (!g_initialized) {
g_initialized = true;
_cursorPaletteStack.clear();
}
}
void PaletteManager::pushCursorPalette(const byte *colors, uint start, uint num) {
if (!g_system->hasFeature(OSystem::kFeatureCursorHasPalette))
return;
Palette *pal = new Palette(colors, start, num);
_cursorPaletteStack.push(pal);
if (num)
g_system->setCursorPalette(colors, start, num);
else
g_system->disableCursorPalette(true);
}
void PaletteManager::popCursorPalette() {
if (!g_system->hasFeature(OSystem::kFeatureCursorHasPalette))
return;
if (_cursorPaletteStack.empty())
return;
Palette *pal = _cursorPaletteStack.pop();
delete pal;
if (_cursorPaletteStack.empty()) {
g_system->disableCursorPalette(true);
return;
}
pal = _cursorPaletteStack.top();
if (pal->_num)
g_system->setCursorPalette(pal->_data, pal->_start, pal->_num);
else
g_system->disableCursorPalette(true);
}
void PaletteManager::replaceCursorPalette(const byte *colors, uint start, uint num) {
if (!g_system->hasFeature(OSystem::kFeatureCursorHasPalette))
return;
if (_cursorPaletteStack.empty()) {
pushCursorPalette(colors, start, num);
return;
}
Palette *pal = _cursorPaletteStack.top();
uint size = 4 * num;
if (pal->_size < size) {
// Could not re-use the old buffer. Create a new one.
delete[] pal->_data;
pal->_data = new byte[size];
pal->_size = size;
}
pal->_start = start;
pal->_num = num;
if (num) {
memcpy(pal->_data, colors, 4 * num);
g_system->setCursorPalette(pal->_data, pal->_start, pal->_num);
} else {
g_system->disableCursorPalette(true);
}
}
} // End of namespace Graphics
|
