This class write an image in a pcx file. More...
#include <pcx.hpp>
Classes | |
class | file_output_buffer |
The type of the output buffer associated with the file when encoding RLE data. More... | |
Public Types | |
typedef rle_encoder < file_output_buffer > | rle_pcx_encoder |
RLE encoder for pcx format. | |
Public Member Functions | |
writer (const image &img) | |
Constructor. | |
writer (const image &img, std::ostream &f) | |
Constructor. | |
void | save (std::ostream &os) const |
Save the content of the image in a stream. | |
Private Member Functions | |
void | write_header (std::ostream &os, unsigned int bytes_per_line) const |
Save the header of the image in a stream. | |
void | save_rle_true_color (std::ostream &os, unsigned int bytes_per_line) const |
Save the content of the image in a stream. | |
Private Attributes | |
const image & | m_image |
The image from which we read the data. |
This class write an image in a pcx file.
Definition at line 303 of file pcx.hpp.
claw::graphic::pcx::writer::writer | ( | const image & | img | ) |
Constructor.
img | The image to save. |
Definition at line 90 of file pcx_writer.cpp.
: m_image(img) { } // pcx::writer::writer()
claw::graphic::pcx::writer::writer | ( | const image & | img, | |
std::ostream & | f | |||
) |
Constructor.
img | The image to save. | |
f | The file in which we save the data. |
Definition at line 102 of file pcx_writer.cpp.
References save().
void claw::graphic::pcx::writer::save | ( | std::ostream & | os | ) | const |
Save the content of the image in a stream.
os | The stream in which we write. |
Definition at line 113 of file pcx_writer.cpp.
References m_image, save_rle_true_color(), claw::graphic::image::width(), and write_header().
Referenced by writer().
{ const unsigned int bytes_per_line = m_image.width() + m_image.width() % 2; write_header(os, bytes_per_line); save_rle_true_color(os, bytes_per_line); } // pcx::writer::save()
void claw::graphic::pcx::writer::save_rle_true_color | ( | std::ostream & | os, | |
unsigned int | bytes_per_line | |||
) | const [private] |
Save the content of the image in a stream.
os | The stream in which we write. | |
bytes_per_line | Number of bytes per decoded line. |
Definition at line 161 of file pcx_writer.cpp.
References claw::rle_encoder< OutputBuffer >::encode().
Referenced by save().
{ std::vector<u_int_8> data(bytes_per_line, 0); rle_pcx_encoder encoder; file_output_buffer output(os); for (unsigned int y=0; y!=m_image.height(); ++y) { // red for (unsigned int x=0; x!=m_image.width(); ++x) data[x] = m_image[y][x].components.red; encoder.encode( data.begin(), data.end(), output ); // green for (unsigned int x=0; x!=m_image.width(); ++x) data[x] = m_image[y][x].components.green; encoder.encode( data.begin(), data.end(), output ); // blue for (unsigned int x=0; x!=m_image.width(); ++x) data[x] = m_image[y][x].components.blue; encoder.encode( data.begin(), data.end(), output ); } } // pcx::writer::save_rle_true_color()
void claw::graphic::pcx::writer::write_header | ( | std::ostream & | os, | |
unsigned int | bytes_per_line | |||
) | const [private] |
Save the header of the image in a stream.
os | The stream in which we write. | |
bytes_per_line | Number of bytes per decoded line. |
Definition at line 128 of file pcx_writer.cpp.
References claw::graphic::pcx::header::bpp, claw::graphic::pcx::header::bytes_per_line, claw::graphic::pcx::header::color_map, claw::graphic::pcx::header::color_planes, claw::graphic::pcx::header::encoded, claw::graphic::pcx::header::filler, claw::graphic::pcx::header::horizontal, claw::graphic::pcx::header::horizontal_dpi, claw::graphic::pcx::header::manufacturer, claw::graphic::pcx::header::palette_info, claw::graphic::pcx::header::reserved, claw::graphic::pcx::header::screen_size, claw::graphic::pcx::header::version, claw::graphic::pcx::header::vertical, claw::graphic::pcx::header::vertical_dpi, claw::graphic::pcx::header::window, claw::graphic::pcx::header::x_max, claw::graphic::pcx::header::x_min, claw::graphic::pcx::header::y_max, and claw::graphic::pcx::header::y_min.
Referenced by save().
{ header h; h.manufacturer = 10; h.version = 5; h.encoded = 1; h.bpp = 8; h.window.x_min = 0; h.window.y_min = 0; h.window.x_max = m_image.width() - 1; h.window.y_max = m_image.height() - 1; h.horizontal_dpi = 72; // arbitrary value h.vertical_dpi = 72; std::fill( h.color_map, h.color_map+16, rgb_pixel_8(0, 0, 0) ); h.reserved = 0; h.color_planes = 3; // RGB h.bytes_per_line = bytes_per_line; h.palette_info = 0; h.screen_size.horizontal = 0; h.screen_size.vertical = 0; std::fill( h.filler, h.filler+54, 0 ); os.write( reinterpret_cast<char*>(&h), sizeof(header) ); } // pcx::writer::write_header()
const image& claw::graphic::pcx::writer::m_image [private] |