1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
|
///=============================================================================
//
// file : jpeg_lib.h
//
// description : Simple jpeg coding/decoding library
// MMX optimisation supported for both Visual C++ and gcc
// Main library header file
//
// project : TANGO
//
// author(s) : JL Pons
//
// Copyright (C) : 2004,2005,2006,2007,2008,2009,2010,2011,2012,2013
// European Synchrotron Radiation Facility
// BP 220, Grenoble 38043
// FRANCE
//
// This file is part of Tango.
//
// Tango is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Tango is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Tango. If not, see <http://www.gnu.org/licenses/>.
//
// $Revision: 22213 $
//
// $Log$
// Revision 1.2 2009/04/20 14:55:58 jlpons
// Added GPL header, changed memory allocation to C++ fashion.
//
//=============================================================================
#ifndef _JPEGLIBH_
#define _JPEGLIBH_
// ----------------------------------------------------------------------------
// Encode a RGB image to a buffer
// quality ranges in 0(poor), 100(max)
// jpegData is allocated by the function and must be freed by the caller.
// ----------------------------------------------------------------------------
void jpeg_encode_rgb32(int width,int height,unsigned char *rgb32,
double quality,int *jpegSize,unsigned char **jpegData);
void jpeg_encode_rgb24(int width,int height,unsigned char *rgb24,
double quality,int *jpegSize,unsigned char **jpegData);
void jpeg_encode_gray8(int width,int height,unsigned char *gray8,
double quality,int *jpegSize,unsigned char **jpegData);
// ----------------------------------------------------------------------------
// Decode a JPEG image and return error code in case of failure, 0 is returned
// otherwise. frame is a pointer to a set of 8bit sample (8bit gray scale or
// 32bit rgb format) which is allocated by the function and must be freed by
// the caller.
// ----------------------------------------------------------------------------
#define JPEG_GRAY_FORMAT 0
#define JPEG_RGB32_FORMAT 1
int jpeg_decode(int jpegSize,unsigned char *jpegData,
int *width,int *height,int *format,unsigned char **frame);
// Return error message
char *jpeg_get_error_msg(int code);
#endif /* _JPEGLIBH_ */
|