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70 lines
2.3 KiB
70 lines
2.3 KiB
// ==========================================================
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// FreeImageIO.Net
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//
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// Design and implementation by
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// - Marcos Pernambuco Motta (marcos.pernambuco@gmail.com)
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//
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// This file is part of FreeImage 3
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//
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// COVERED CODE IS PROVIDED UNDER THIS LICENSE ON AN "AS IS" BASIS, WITHOUT WARRANTY
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// OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION, WARRANTIES
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// THAT THE COVERED CODE IS FREE OF DEFECTS, MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE
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// OR NON-INFRINGING. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE COVERED
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// CODE IS WITH YOU. SHOULD ANY COVERED CODE PROVE DEFECTIVE IN ANY RESPECT, YOU (NOT
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// THE INITIAL DEVELOPER OR ANY OTHER CONTRIBUTOR) ASSUME THE COST OF ANY NECESSARY
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// SERVICING, REPAIR OR CORRECTION. THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL
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// PART OF THIS LICENSE. NO USE OF ANY COVERED CODE IS AUTHORIZED HEREUNDER EXCEPT UNDER
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// THIS DISCLAIMER.
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//
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// Use at your own risk!
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// ==========================================================
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#include "stdafx.h"
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#include "FreeImageIO.Net.h"
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extern "C" static unsigned __stdcall ReadProc (void *buffer, unsigned size, unsigned count, fi_handle handle)
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{
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int total_read = 0;
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struct UNMANAGED_HANDLER* puh = (struct UNMANAGED_HANDLER*)handle;
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gcroot<unsigned char __gc []> mbuffer = new unsigned char __gc[size];
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try
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{
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total_read = puh->_stream->Read(mbuffer,0,size);
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Marshal::Copy(mbuffer,0,buffer,total_read);
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} __finally {
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mbuffer=NULL;
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}
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return (unsigned)total_read;
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}
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extern "C" static unsigned __stdcall WriteProc (void *buffer, unsigned size, unsigned count, fi_handle handle)
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{
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struct UNMANAGED_HANDLER* puh = (struct UNMANAGED_HANDLER*)handle;
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gcroot<unsigned char __gc []> mbuffer = new unsigned char __gc[size*count];
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try
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{
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unsigned char __pin* pbuffer = &mbuffer[0];
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memcpy(pbuffer,buffer,size*count);
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puh->_stream->Write(mbuffer,0,size);
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} __finally {
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mbuffer=NULL;
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}
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return count;
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}
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extern "C" static int __stdcall SeekProc (fi_handle handle, long offset, int origin)
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{
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struct UNMANAGED_HANDLER* puh = (struct UNMANAGED_HANDLER*)handle;
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return (int)puh->_stream->Seek(offset,(SeekOrigin) origin);
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}
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extern "C" static long __stdcall TellProc(fi_handle handle)
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{
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struct UNMANAGED_HANDLER* puh = (struct UNMANAGED_HANDLER*)handle;
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return (long)puh->_stream->Position;
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}
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