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
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
|
/* 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.
*
*/
/*
* This file is based on WME Lite.
* http://dead-code.org/redir.php?target=wmelite
* Copyright (c) 2011 Jan Nedoma
*/
#include "engines/wintermute/base/gfx/base_image.h"
#include "engines/wintermute/base/base_file_manager.h"
#include "engines/wintermute/graphics/transparent_surface.h"
#include "graphics/decoders/png.h"
#include "graphics/decoders/jpeg.h"
#include "graphics/decoders/bmp.h"
#include "graphics/decoders/tga.h"
#include "graphics/surface.h"
#include "common/textconsole.h"
#include "common/stream.h"
#include "common/system.h"
namespace Wintermute {
//////////////////////////////////////////////////////////////////////
BaseImage::BaseImage() {
_fileManager = BaseFileManager::getEngineInstance();
_palette = nullptr;
_surface = nullptr;
_decoder = nullptr;
_deletableSurface = nullptr;
}
//////////////////////////////////////////////////////////////////////
BaseImage::~BaseImage() {
delete _decoder;
if (_deletableSurface) {
_deletableSurface->free();
}
delete _deletableSurface;
}
bool BaseImage::loadFile(const Common::String &filename) {
_filename = filename;
_filename.toLowercase();
if (filename.hasPrefix("savegame:")) {
_decoder = new Graphics::BitmapDecoder();
} else if (_filename.hasSuffix(".png")) {
_decoder = new Graphics::PNGDecoder();
} else if (_filename.hasSuffix(".bmp")) {
_decoder = new Graphics::BitmapDecoder();
} else if (_filename.hasSuffix(".tga")) {
_decoder = new Graphics::TGADecoder();
} else if (_filename.hasSuffix(".jpg")) {
_decoder = new Graphics::JPEGDecoder();
} else {
error("BaseImage::loadFile : Unsupported fileformat %s", filename.c_str());
}
_filename = filename;
Common::SeekableReadStream *file = _fileManager->openFile(filename.c_str());
if (!file) {
return false;
}
_decoder->loadStream(*file);
_surface = _decoder->getSurface();
_palette = _decoder->getPalette();
_fileManager->closeFile(file);
return true;
}
byte BaseImage::getAlphaAt(int x, int y) const {
if (!_surface) {
return 0xFF;
}
uint32 color = *(const uint32 *)_surface->getBasePtr(x, y);
byte r, g, b, a;
_surface->format.colorToARGB(color, a, r, g, b);
return a;
}
void BaseImage::copyFrom(const Graphics::Surface *surface) {
_surface = _deletableSurface = new Graphics::Surface();
_deletableSurface->copyFrom(*surface);
}
//////////////////////////////////////////////////////////////////////////
bool BaseImage::saveBMPFile(const Common::String &filename) const {
warning("BaseImage::saveBMPFile - stubbed"); // TODO
return false;
}
//////////////////////////////////////////////////////////////////////////
bool BaseImage::resize(int newWidth, int newHeight) {
// WME Lite used FILTER_BILINEAR with FreeImage_Rescale here.
TransparentSurface temp(*_surface, true);
if (_deletableSurface) {
_deletableSurface->free();
delete _deletableSurface;
_deletableSurface = nullptr;
}
_surface = _deletableSurface = temp.scale((uint16)newWidth, (uint16)newHeight);
temp.free();
return true;
}
//////////////////////////////////////////////////////////////////////////
bool BaseImage::writeBMPToStream(Common::WriteStream *stream) const {
if (!_surface) {
return false;
}
/* The following is just copied over and inverted to write-ops from the BMP-decoder */
stream->writeByte('B');
stream->writeByte('M');
/* Since we don't care during reads, we don't care during writes: */
/* uint32 fileSize = */
stream->writeUint32LE(54 + _surface->h * _surface->pitch);
/* uint16 res1 = */
stream->writeUint16LE(0);
/* uint16 res2 = */
stream->writeUint16LE(0);
const uint32 imageOffset = 54;
stream->writeUint32LE(imageOffset);
const uint32 infoSize = 40; /* Windows v3 BMP */
stream->writeUint32LE(infoSize);
uint32 width = _surface->w;
int32 height = _surface->h;
stream->writeUint32LE(width);
stream->writeUint32LE((uint32)height);
if (width == 0 || height == 0) {
return false;
}
if (height < 0) {
warning("Right-side up bitmaps not supported");
return false;
}
/* uint16 planes = */ stream->writeUint16LE(1);
const uint16 bitsPerPixel = 24;
stream->writeUint16LE(bitsPerPixel);
const uint32 compression = 0;
stream->writeUint32LE(compression);
/* uint32 imageSize = */
stream->writeUint32LE(_surface->h * _surface->pitch);
/* uint32 pixelsPerMeterX = */
stream->writeUint32LE(0);
/* uint32 pixelsPerMeterY = */
stream->writeUint32LE(0);
const uint32 paletteColorCount = 0;
stream->writeUint32LE(paletteColorCount);
/* uint32 colorsImportant = */
stream->writeUint32LE(0);
// Start us at the beginning of the image (54 bytes in)
Graphics::PixelFormat format = Graphics::PixelFormat::createFormatCLUT8();
// BGRA for 24bpp
if (bitsPerPixel == 24) {
format = Graphics::PixelFormat(4, 8, 8, 8, 8, 8, 16, 24, 0);
}
Graphics::Surface *surface = _surface->convertTo(format);
int srcPitch = width * (bitsPerPixel >> 3);
const int extraDataLength = (srcPitch % 4) ? 4 - (srcPitch % 4) : 0;
for (int32 i = height - 1; i >= 0; i--) {
for (uint32 j = 0; j < width; j++) {
byte b, g, r;
uint32 color = *(uint32 *)surface->getBasePtr(j, i);
surface->format.colorToRGB(color, r, g, b);
stream->writeByte(b);
stream->writeByte(g);
stream->writeByte(r);
}
for (int k = 0; k < extraDataLength; k++) {
stream->writeByte(0);
}
}
surface->free();
delete surface;
return true;
}
//////////////////////////////////////////////////////////////////////////
bool BaseImage::copyFrom(BaseImage *origImage, int newWidth, int newHeight) {
// WME Lite used FILTER_BILINEAR with FreeImage_Rescale here.
TransparentSurface temp(*origImage->_surface, false);
if (_deletableSurface) {
_deletableSurface->free();
delete _deletableSurface;
_deletableSurface = nullptr;
}
_surface = _deletableSurface = temp.scale((uint16)newWidth, (uint16)newHeight);
return true;
}
} // end of namespace Wintermute
|
