rgba_buffer Class Reference
#include <texture.hpp>
Detailed Description
Encapsulates a 32-bit RGBA buffer (possibly memory-mapped).Definition at line 55 of file texture.hpp.
Public Member Functions | |
| void | clear (const color &c) |
| int | get_height () const |
| unsigned char * | get_pointer () |
| int | get_width () const |
| rgba_buffer (int width, int height, const color &c=color::WHITE) | |
| Creates a blank buffer in memory. | |
| rgba_buffer (SDL_Surface *surface) | |
| Creates a buffer from an SDL surface. | |
| rgba_buffer (const gsgl::string &fname) | |
| Creates a memory-mapped buffer from an existing file. | |
| void | save (const gsgl::string &fname) |
| Saves to a file to be memory-mapped. | |
| ~rgba_buffer () | |
Private Member Functions | |
| void | flip_vertical () |
Private Attributes | |
| unsigned char * | buffer |
| int | height |
| mapped_file * | mf |
| int | width |
Constructor & Destructor Documentation
| rgba_buffer | ( | const gsgl::string & | fname | ) |
Creates a memory-mapped buffer from an existing file.
Definition at line 60 of file texture.cpp.
References rgba_buffer::buffer, file::exists(), gsgl::io::FILE_OPEN_READ, gsgl::io::FILE_OPEN_WRITE, file::get_full_path(), rgba_buffer::height, rgba_buffer::mf, string::w_string(), and rgba_buffer::width.
| rgba_buffer | ( | SDL_Surface * | surface | ) |
Creates a buffer from an SDL surface.
Definition at line 78 of file texture.cpp.
References rgba_buffer::buffer, and rgba_buffer::flip_vertical().
| rgba_buffer | ( | int | width, | |
| int | height, | |||
| const color & | c = color::WHITE | |||
| ) |
Creates a blank buffer in memory.
Definition at line 132 of file texture.cpp.
References rgba_buffer::buffer, and rgba_buffer::clear().
| ~rgba_buffer | ( | ) |
Member Function Documentation
| void clear | ( | const color & | c | ) |
Definition at line 169 of file texture.cpp.
References rgba_buffer::buffer, color::COMPONENT_ALPHA, color::COMPONENT_BLUE, color::COMPONENT_GREEN, color::COMPONENT_RED, rgba_buffer::height, and rgba_buffer::width.
Referenced by rgba_buffer::rgba_buffer().
| void flip_vertical | ( | ) | [private] |
Definition at line 187 of file texture.cpp.
References rgba_buffer::buffer, rgba_buffer::height, and rgba_buffer::width.
Referenced by rgba_buffer::rgba_buffer().
| int get_height | ( | ) | const [inline] |
Definition at line 69 of file texture.hpp.
Referenced by texture_impl::bind(), and texture_impl::update().
| unsigned char* get_pointer | ( | ) | [inline] |
Definition at line 70 of file texture.hpp.
Referenced by texture_impl::bind(), and texture_impl::update().
| int get_width | ( | ) | const [inline] |
Definition at line 68 of file texture.hpp.
Referenced by texture_impl::bind(), and texture_impl::update().
| void save | ( | const gsgl::string & | fname | ) |
Saves to a file to be memory-mapped.
Definition at line 154 of file texture.cpp.
References rgba_buffer::buffer, gsgl::io::FILE_OPEN_BINARY, gsgl::io::FILE_OPEN_WRITE, rgba_buffer::height, rgba_buffer::width, and fd_stream::write().
Member Data Documentation
unsigned char* buffer [private] |
Definition at line 58 of file texture.hpp.
Referenced by rgba_buffer::clear(), rgba_buffer::flip_vertical(), rgba_buffer::rgba_buffer(), rgba_buffer::save(), and rgba_buffer::~rgba_buffer().
int height [private] |
Definition at line 57 of file texture.hpp.
Referenced by rgba_buffer::clear(), rgba_buffer::flip_vertical(), rgba_buffer::rgba_buffer(), and rgba_buffer::save().
mapped_file* mf [private] |
Definition at line 60 of file texture.hpp.
Referenced by rgba_buffer::rgba_buffer(), and rgba_buffer::~rgba_buffer().
int width [private] |
Definition at line 57 of file texture.hpp.
Referenced by rgba_buffer::clear(), rgba_buffer::flip_vertical(), rgba_buffer::rgba_buffer(), and rgba_buffer::save().
The documentation for this class was generated from the following files:
