ImageUtil.cc File Reference
Detailed Description
- Author:
- Ethan Tira-Thompson (ejt) (Creator)
- Author
- ejt
- Name
- Revision
- 1.3
- State
- Exp
- Date
- 2007/04/09 22:22:04
Definition in file ImageUtil.cc.
#include "ImageUtil.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <iostream>
#include "Shared/jpeg-6b/jpeg_mem_dest.h"
#include "Shared/jpeg-6b/jpeg_mem_src.h"
#include "Shared/Config.h"
#include <fcntl.h>
#include <sys/mman.h>
#include <png.h>
#include <jpeglib.h>
Include dependency graph for ImageUtil.cc:
Go to the source code of this file.
Namespaces | |
| namespace | ImageUtil |
Classes | |
| struct | png_read_mem_status |
| stores progress of user_read_png_data() between calls More... | |
| struct | png_write_mem_status |
| stores progress of user_write_png_data() between calls More... | |
Functions | |
| static void | user_read_png_data (png_structp png_ptr, png_bytep data, png_size_t length) |
| user callback function for reading a png from user parameters stored in png_ptr into data | |
| void | user_write_png_data (png_structp png_ptr, png_bytep data, png_size_t length) |
| user callback function for writing a png at data into user parameters stored in png_ptr | |
| void | user_flush_png_data (png_structp) |
| user callback function for flushing results of user_write_png_data() (this is a no-op) | |
| bool | ImageUtil::loadFile (const std::string &file, char *&buf, size_t &size) |
| loads a file into memory, returns true if successful | |
| void | ImageUtil::releaseFile (char *buf, size_t size) |
| releases memory from a previous call to loadFile, triggering munmap() or 'delete' as appropriate | |
| bool | ImageUtil::decodeJPEG (char *inbuf, size_t inbufSize, size_t &width, size_t &height, size_t &channels, char *&outbuf, size_t &outbufSize, const std::string &filename="") |
| decodes a JPEG image already in memory, returns true if successful | |
| bool | ImageUtil::decodePNG (char *inbuf, size_t inbufSize, size_t &width, size_t &height, size_t &channels, char *&outbuf, size_t &outbufSize) |
| decodes a PNG image already in memory, returns true if successful | |
| bool | ImageUtil::decodeImage (char *inbuf, size_t inbufSize, size_t &width, size_t &height, size_t &channels, char *&outbuf, size_t &outbufSize) |
| decodes an image already in memory -- if it looks like a PNG decodePNG() will be called, otherwise decodeJPEG(); returns true if successful | |
| bool | ImageUtil::loadJPEG (const std::string &file, size_t &width, size_t &height, size_t &channels, char *&outbuf, size_t &outbufSize) |
| decodes a JPEG from disk, returns true if successful | |
| bool | ImageUtil::loadPNG (const std::string &file, size_t &width, size_t &height, size_t &channels, char *&outbuf, size_t &outbufSize) |
| decodes a PNG from disk, returns true if successful | |
| bool | ImageUtil::loadImage (const std::string &file, size_t &width, size_t &height, size_t &channels, char *&outbuf, size_t &outbufSize) |
| decodes an image from file on disk -- if it looks like a PNG decodePNG() will be called, otherwise decodeJPEG(); returns true if successful | |
| size_t | ImageUtil::encodeJPEG (char *inbuf, size_t inbufSize, size_t width, size_t height, size_t inbufChannels, char *&outbuf, size_t &outbufSize, size_t outbufChannels, int quality) |
| encodes a JPEG from a pixel buffer into another memory buffer, returns number of bytes used, 0 if error | |
| size_t | ImageUtil::encodeJPEG (char *inbuf, size_t inbufSize, size_t width, size_t height, size_t inbufChannels, char *&outbuf, size_t &outbufSize, size_t outbufChannels, int quality, jpeg_compress_struct &cinfo) |
| encodes a JPEG from a pixel buffer into another memory buffer, returns number of bytes used, 0 if error | |
| size_t | ImageUtil::encodeJPEG (char *inbuf, size_t inbufSize, size_t width, size_t height, size_t inbufChannels, char *&outbuf, size_t &outbufSize, size_t outbufChannels, int quality, unsigned int yskip, unsigned int uvskip, jpeg_compress_struct &cinfo) |
| encodes a JPEG from a pixel buffer into another memory buffer, returns number of bytes used, 0 if error | |
| size_t | ImageUtil::encodePNG (char *inbuf, size_t inbufSize, size_t width, size_t height, size_t inbufChannels, char *&outbuf, size_t &outbufSize, size_t outbufChannels) |
| encodes a JPEG from a pixel buffer into another memory buffer, returns number of bytes used, 0 if error | |
