1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 23 24 #ifndef _JPEG_H 25 #define _JPEG_H 26 27 #if defined( ICC ) 28 #include <stdio.h> 29 #endif 30 31 #if defined (UNX) || defined(__MINGW32__) 32 #include <sys/types.h> 33 #endif 34 35 struct JPEGCreateBitmapParam 36 { 37 unsigned long nWidth; 38 unsigned long nHeight; 39 unsigned long density_unit; 40 unsigned long X_density; 41 unsigned long Y_density; 42 long bGray; 43 44 long nAlignedWidth; // these members will be filled by the 45 long bTopDown; // CreateBitmap method in svtools 46 }; 47 48 typedef struct my_error_mgr* my_error_ptr; 49 typedef unsigned char* HPBYTE; 50 51 void* JPEGMalloc( size_t size ); 52 void JPEGFree( void *ptr ); 53 long JPEGCallback( void* pCallbackData, long nPercent ); 54 55 long WriteJPEG( void* pJPEGWriter, void* pOStm, long nWidth, long nHeight, long bGreyScale, 56 long nQualityPercent, void* pCallbackData ); 57 void* GetScanline( void* pJPEGWriter, long nY ); 58 59 void ReadJPEG( void* pJPEGReader, void* pIStm, long* pLines ); 60 void* CreateBitmap( void* pJPEGReader, void* pJPEGCreateBitmapParam ); 61 62 /* TODO: when incompatible changes are possible again 63 the preview size hint should be redone */ 64 void SetJpegPreviewSizeHint( int nWidth, int nHeight ); 65 66 #endif 67