Claw 1.7.3
targa_writer.cpp
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1/*
2 CLAW - a C++ Library Absolutely Wonderful
3
4 CLAW is a free library without any particular aim but being useful to
5 anyone.
6
7 Copyright (C) 2005-2011 Julien Jorge
8
9 This library is free software; you can redistribute it and/or
10 modify it under the terms of the GNU Lesser General Public
11 License as published by the Free Software Foundation; either
12 version 2.1 of the License, or (at your option) any later version.
13
14 This library is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
18
19 You should have received a copy of the GNU Lesser General Public
20 License along with this library; if not, write to the Free Software
21 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22
23 contact: julien.jorge@gamned.org
24*/
30#include <claw/targa.hpp>
31#include <claw/exception.hpp>
32
33
34//********************** targa::writer::file_output_buffer *********************
35
36
37
38
39namespace claw
40{
41 namespace graphic
42 {
43 /*------------------------------------------------------------------------*/
51 template< >
54 {
55 m_stream << p.components.blue << p.components.green
56 << p.components.red << p.components.alpha;
57 } // targa::writer::file_output_buffer::order_pixel_bytes()
58 } // namespace graphic
59} // namespace claw
60
61
62//************************** targa::writer::writer *****************************
63
64
65
66
67/*----------------------------------------------------------------------------*/
73 : m_image(img)
74{
75
76} // targa::writer::writer()
77
78/*----------------------------------------------------------------------------*/
86( const image& img, std::ostream& f, bool rle )
87 : m_image(img)
88{
89 save(f, rle);
90} // targa::writer::writer()
91
92/*----------------------------------------------------------------------------*/
98void claw::graphic::targa::writer::save( std::ostream& os, bool rle ) const
99{
100 header h( m_image.width(), m_image.height() );
101
102 if (rle)
103 h.image_type = rle_true_color;
104 else
105 h.image_type = true_color;
106
107 os.write( reinterpret_cast<char*>(&h), sizeof(header) );
108
109 if (rle)
110 save_rle_true_color(os);
111 else
112 save_true_color(os);
113
114 footer f;
115 os.write( reinterpret_cast<char*>(&f), sizeof(footer) );
116} // targa::writer::save()
117
118/*----------------------------------------------------------------------------*/
123void claw::graphic::targa::writer::save_true_color( std::ostream& os ) const
124{
125 file_output_buffer<rgba_pixel_8> output_buffer(os);
126
127 for (const_iterator it=m_image.begin(); it!=m_image.end(); ++it)
128 output_buffer.order_pixel_bytes(*it);
129} // targa::writer::save_true_color()
130
131/*----------------------------------------------------------------------------*/
136void claw::graphic::targa::writer::save_rle_true_color( std::ostream& os ) const
137{
138 rle32_encoder encoder;
139 rle32_encoder::output_buffer_type output_buffer(os);
140
141 for ( unsigned int y=0; y!=m_image.height(); ++y )
142 encoder.encode( m_image[y].begin(), m_image[y].end(), output_buffer );
143} // targa::writer::save_rle_true_color()
Base class for iterators on an image.
Definition image.hpp:108
A class to deal with images.
Definition image.hpp:50
Pixel pixel_type
The type of the pixels in the input buffer.
Definition targa.hpp:426
void order_pixel_bytes(const pixel_type &p)
Write a pixel in the stream and set its value in the good order.
void save(std::ostream &f, bool rle) const
Save the content of the image in a stream.
writer(const image &img)
Constructor.
A simple class to use as exception with string message.
This is the main namespace.
Definition algorithm.hpp:34
A class for targa pictures.