00001 /* 00002 CLAW - a C++ Library Absolutely Wonderful 00003 00004 CLAW is a free library without any particular aim but being useful to 00005 anyone. 00006 00007 Copyright (C) 2005-2008 Julien Jorge 00008 00009 This library is free software; you can redistribute it and/or 00010 modify it under the terms of the GNU Lesser General Public 00011 License as published by the Free Software Foundation; either 00012 version 2.1 of the License, or (at your option) any later version. 00013 00014 This library is distributed in the hope that it will be useful, 00015 but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00017 Lesser General Public License for more details. 00018 00019 You should have received a copy of the GNU Lesser General Public 00020 License along with this library; if not, write to the Free Software 00021 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00022 00023 contact: julien_jorge@yahoo.fr 00024 */ 00030 #include <claw/targa.hpp> 00031 #include <claw/exception.hpp> 00032 00033 00034 //********************** targa::writer::file_output_buffer ********************* 00035 00036 00037 00038 00039 namespace claw 00040 { 00041 namespace graphic 00042 { 00043 /*------------------------------------------------------------------------*/ 00050 template< > 00051 void targa::writer::file_output_buffer<claw::graphic::rgba_pixel_8>:: 00052 order_pixel_bytes( const pixel_type& p ) 00053 { 00054 m_stream << p.components.blue << p.components.green 00055 << p.components.red << p.components.alpha; 00056 } // targa::writer::file_output_buffer::order_pixel_bytes() 00057 } // namespace graphic 00058 } // namespace claw 00059 00060 00061 //************************** targa::writer::writer ***************************** 00062 00063 00064 00065 00066 /*----------------------------------------------------------------------------*/ 00071 claw::graphic::targa::writer::writer( const image& img ) 00072 : m_image(img) 00073 { 00074 00075 } // targa::writer::writer() 00076 00077 /*----------------------------------------------------------------------------*/ 00084 claw::graphic::targa::writer::writer 00085 ( const image& img, std::ostream& f, bool rle ) 00086 : m_image(img) 00087 { 00088 save(f, rle); 00089 } // targa::writer::writer() 00090 00091 /*----------------------------------------------------------------------------*/ 00097 void claw::graphic::targa::writer::save( std::ostream& os, bool rle ) const 00098 { 00099 header h( m_image.width(), m_image.height() ); 00100 00101 if (rle) 00102 h.image_type = rle_true_color; 00103 else 00104 h.image_type = true_color; 00105 00106 os.write( reinterpret_cast<char*>(&h), sizeof(header) ); 00107 00108 if (rle) 00109 save_rle_true_color(os); 00110 else 00111 save_true_color(os); 00112 00113 footer f; 00114 os.write( reinterpret_cast<char*>(&f), sizeof(footer) ); 00115 } // targa::writer::save() 00116 00117 /*----------------------------------------------------------------------------*/ 00122 void claw::graphic::targa::writer::save_true_color( std::ostream& os ) const 00123 { 00124 file_output_buffer<rgba_pixel_8> output_buffer(os); 00125 00126 for (const_iterator it=m_image.begin(); it!=m_image.end(); ++it) 00127 output_buffer.order_pixel_bytes(*it); 00128 } // targa::writer::save_true_color() 00129 00130 /*----------------------------------------------------------------------------*/ 00135 void claw::graphic::targa::writer::save_rle_true_color( std::ostream& os ) const 00136 { 00137 rle32_encoder encoder; 00138 rle32_encoder::output_buffer_type output_buffer(os); 00139 00140 for ( unsigned int y=0; y!=m_image.height(); ++y ) 00141 encoder.encode( m_image[y].begin(), m_image[y].end(), output_buffer ); 00142 } // targa::writer::save_rle_true_color()