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
|
// This may look like C code, but it is really -*- C++ -*-
//
// Copyright Bob Friesenhahn, 1999, 2000, 2001, 2002, 2003
// Copyright Dirk Lemstra 2014
//
// Pixels Implementation
//
#define MAGICKCORE_IMPLEMENTATION 1
#define MAGICK_PLUSPLUS_IMPLEMENTATION 1
#include "Magick++/Include.h"
#include <string> // This is here to compile with Visual C++
#include "Magick++/Thread.h"
#include "Magick++/Exception.h"
#include "Magick++/Pixels.h"
Magick::Pixels::Pixels(Magick::Image &image_)
: _image(image_),
_x(0),
_y(0),
_columns(0),
_rows(0)
{
GetPPException;
_view=AcquireVirtualCacheView(image_.image(),exceptionInfo);
ThrowPPException(image_.quiet());
}
Magick::Pixels::~Pixels(void)
{
if (_view != (MagickCore::CacheView *) NULL)
_view=DestroyCacheView(_view);
}
Magick::PixelPacket* Magick::Pixels::get(const ssize_t x_,const ssize_t y_,
const size_t columns_,const size_t rows_)
{
_x=x_;
_y=y_;
_columns=columns_;
_rows=rows_;
GetPPException;
PixelPacket* pixels=GetCacheViewAuthenticPixels(_view,x_,y_,columns_,rows_,
exceptionInfo);
ThrowPPException(_image.quiet());
return pixels;
}
const Magick::PixelPacket* Magick::Pixels::getConst(const ssize_t x_,
const ssize_t y_,const size_t columns_,const size_t rows_)
{
_x=x_;
_y=y_;
_columns=columns_;
_rows=rows_;
GetPPException;
const PixelPacket* pixels=GetCacheViewVirtualPixels(_view,x_,y_,columns_,
rows_,exceptionInfo);
ThrowPPException(_image.quiet());
return pixels;
}
Magick::PixelPacket* Magick::Pixels::set(const ssize_t x_,const ssize_t y_,
const size_t columns_,const size_t rows_)
{
_x=x_;
_y=y_;
_columns=columns_;
_rows=rows_;
GetPPException;
PixelPacket* pixels=QueueCacheViewAuthenticPixels(_view,x_,y_,columns_,rows_,
exceptionInfo);
ThrowPPException(_image.quiet());
return pixels;
}
void Magick::Pixels::sync(void)
{
GetPPException;
(void) SyncCacheViewAuthenticPixels(_view,exceptionInfo);
ThrowPPException(_image.quiet());
}
Magick::IndexPacket* Magick::Pixels::indexes (void)
{
IndexPacket* pixel_indexes=GetCacheViewAuthenticIndexQueue(_view);
if (!pixel_indexes)
_image.throwImageException();
return pixel_indexes;
}
Magick::PixelData::PixelData(Magick::Image &image_,std::string map_,
const StorageType type_)
{
init(image_,0,0,image_.columns(),image_.rows(),map_,type_);
}
Magick::PixelData::PixelData(Magick::Image &image_,const ::ssize_t x_,
const ::ssize_t y_,const size_t width_,const size_t height_,std::string map_,
const StorageType type_)
{
init(image_,x_,y_,width_,height_,map_,type_);
}
Magick::PixelData::~PixelData(void)
{
relinquish();
}
const void *Magick::PixelData::data(void) const
{
return(_data);
}
::ssize_t Magick::PixelData::length(void) const
{
return(_length);
}
::ssize_t Magick::PixelData::size(void) const
{
return(_size);
}
void Magick::PixelData::init(Magick::Image &image_,const ::ssize_t x_,
const ::ssize_t y_,const size_t width_,const size_t height_,
std::string map_,const StorageType type_)
{
size_t
size;
_data=(void *) NULL;
_length=0;
_size=0;
if ((x_ < 0) || (width_ == 0) || (y_ < 0) || (height_ == 0) ||
(x_ > (ssize_t) image_.columns()) || ((width_ + x_) > image_.columns())
|| (y_ > (ssize_t) image_.rows()) || ((height_ + y_) > image_.rows())
|| (map_.length() == 0))
return;
switch(type_)
{
case CharPixel:
size=sizeof(unsigned char);
break;
case DoublePixel:
size=sizeof(double);
break;
case FloatPixel:
size=sizeof(float);
break;
case IntegerPixel:
case LongPixel:
size=sizeof(unsigned int);
break;
case QuantumPixel:
size=sizeof(Quantum);
break;
case ShortPixel:
size=sizeof(unsigned short);
break;
default:
throwExceptionExplicit(OptionError,"Invalid type");
return;
}
_length=width_*height_*map_.length();
_size=_length*size;
_data=AcquireMagickMemory(_size);
GetPPException;
MagickCore::ExportImagePixels(image_.constImage(),x_,y_,width_,height_,
map_.c_str(),type_,_data,exceptionInfo);
if (exceptionInfo->severity != UndefinedException)
relinquish();
ThrowPPException(image_.quiet());
}
void Magick::PixelData::relinquish(void) throw()
{
if (_data != (void *)NULL)
_data=RelinquishMagickMemory(_data);
_length=0;
_size=0;
}
|
