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
|
/* 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 "common/scummsys.h"
#include "common/file.h"
#include "common/system.h"
#include "graphics/decoders/tga.h"
#include "zvision/zvision.h"
#include "zvision/lzss_read_stream.h"
namespace ZVision {
void ZVision::renderImageToScreen(const Common::String &fileName, uint32 x, uint32 y) {
Common::File file;
if (file.open(fileName)) {
// Read the magic number
// Some files are true TGA, while others are TGZ
char fileType[4];
file.read(fileType, 4);
// Check for true TGA files
if (fileType[0] == 'T' && fileType[1] == 'G' && fileType[2] == 'A' && fileType[3] == '\0') {
// Reset the cursor
file.seek(0);
// Decode
Graphics::TGADecoder tga;
if (!tga.loadStream(file))
error("Error while reading TGA image");
file.close();
const Graphics::Surface *tgaSurface = tga.getSurface();
_system->copyRectToScreen(tgaSurface->pixels, tgaSurface->pitch, x, y, tgaSurface->w, tgaSurface->h);
tga.destroy();
} else {
// TGZ files have a header and then Bitmap data that is compressed with LZSS
uint32 decompressedSize = file.readSint32LE();
uint32 width = file.readSint32LE();
uint32 height = file.readSint32LE();
LzssReadStream stream(&file, false, decompressedSize);
byte *buffer = new byte[stream.currentSize()];
stream.read(buffer, stream.currentSize());
//Graphics::PixelFormat format(16, 5, 6, 5, 0, 11, 5, 0, 0);
// Graphics::PixelFormat format(16, 5, 5, 5, 1, 11, 6, 1, 0);
_system->copyRectToScreen(buffer, width * 2, x, y, width, height);
}
_needsScreenUpdate = true;
} else {
error("Could not open file %s", fileName.c_str());
}
}
} // End of namespace ZVision
|
