105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
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/*
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* Copyright (C) 2009 Tony Wasserka
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*
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*/
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#include "wine/debug.h"
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#include "d3dx9_36_private.h"
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/************************************************************
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* map_view_of_file
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*
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* Loads a file into buffer and stores the number of read bytes in length.
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*
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* PARAMS
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* filename [I] name of the file to be loaded
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* buffer [O] pointer to destination buffer
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* length [O] size of the obtained data
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*
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* RETURNS
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* Success: D3D_OK
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* Failure:
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* see error codes for CreateFileW, GetFileSize, CreateFileMapping and MapViewOfFile
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*
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* NOTES
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* The caller must UnmapViewOfFile when it doesn't need the data anymore
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*
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*/
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HRESULT map_view_of_file(LPCWSTR filename, LPVOID *buffer, DWORD *length)
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{
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HANDLE hfile, hmapping = NULL;
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hfile = CreateFileW(filename, GENERIC_READ, FILE_SHARE_READ, 0, OPEN_EXISTING, 0, 0);
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if(hfile == INVALID_HANDLE_VALUE) goto error;
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*length = GetFileSize(hfile, NULL);
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if(*length == INVALID_FILE_SIZE) goto error;
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hmapping = CreateFileMappingW(hfile, NULL, PAGE_READONLY, 0, 0, NULL);
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if(!hmapping) goto error;
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*buffer = MapViewOfFile(hmapping, FILE_MAP_READ, 0, 0, 0);
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if(*buffer == NULL) goto error;
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CloseHandle(hmapping);
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CloseHandle(hfile);
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return S_OK;
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error:
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CloseHandle(hmapping);
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CloseHandle(hfile);
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return HRESULT_FROM_WIN32(GetLastError());
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}
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/************************************************************
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* load_resource_into_memory
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*
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* Loads a resource into buffer and stores the number of
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* read bytes in length.
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*
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* PARAMS
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* module [I] handle to the module
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* resinfo [I] handle to the resource's information block
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* buffer [O] pointer to destination buffer
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* length [O] size of the obtained data
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*
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* RETURNS
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* Success: D3D_OK
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* Failure:
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* See error codes for SizeofResource, LoadResource and LockResource
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*
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* NOTES
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* The memory doesn't need to be freed by the caller manually
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*
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*/
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HRESULT load_resource_into_memory(HMODULE module, HRSRC resinfo, LPVOID *buffer, DWORD *length)
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{
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HGLOBAL resource;
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*length = SizeofResource(module, resinfo);
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if(*length == 0) return HRESULT_FROM_WIN32(GetLastError());
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resource = LoadResource(module, resinfo);
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if( !resource ) return HRESULT_FROM_WIN32(GetLastError());
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*buffer = LockResource(resource);
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if(*buffer == NULL) return HRESULT_FROM_WIN32(GetLastError());
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return S_OK;
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}
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