mirror of
https://github.com/libretro/RetroArch.git
synced 2024-11-24 00:20:01 +00:00
305 lines
8.1 KiB
C++
305 lines
8.1 KiB
C++
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2011-2015 - Daniel De Matteis
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <xgraphics.h>
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#include "xdk_resources.h"
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#ifdef _XBOX360
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struct XPR_HEADER
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{
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DWORD dwMagic;
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DWORD dwHeaderSize;
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DWORD dwDataSize;
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};
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#endif
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#define XPR0_MAGIC_VALUE 0x30525058
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#define XPR1_MAGIC_VALUE 0x31525058
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#define XPR2_MAGIC_VALUE 0x58505232
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PackedResource::PackedResource()
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{
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m_pSysMemData = NULL;
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m_dwSysMemDataSize = 0L;
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m_pVidMemData = NULL;
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m_dwVidMemDataSize = 0L;
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m_pResourceTags = NULL;
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m_dwNumResourceTags = 0L;
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m_bInitialized = FALSE;
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}
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PackedResource::~PackedResource()
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{
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Destroy();
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}
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void *PackedResource::GetData( const char *strName ) const
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{
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if (m_pResourceTags == NULL || strName == NULL)
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return NULL;
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#if defined(_XBOX1)
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for (DWORD i=0; m_pResourceTags[i].strName; i++ )
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#elif defined(_XBOX360)
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for (DWORD i = 0; i < m_dwNumResourceTags; i++ )
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#endif
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{
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if (!strcasecmp( strName, m_pResourceTags[i].strName))
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return &m_pSysMemData[m_pResourceTags[i].dwOffset];
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}
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return NULL;
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}
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static inline void* AllocateContiguousMemory( DWORD Size, DWORD Alignment)
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{
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#if defined(_XBOX1)
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return D3D_AllocContiguousMemory(Size, Alignment);
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#elif defined(_XBOX360)
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return XMemAlloc( Size, MAKE_XALLOC_ATTRIBUTES( 0, 0, 0, 0, eXALLOCAllocatorId_GameMax,
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Alignment, XALLOC_MEMPROTECT_WRITECOMBINE, 0, XALLOC_MEMTYPE_PHYSICAL ) );
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#endif
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}
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static inline void FreeContiguousMemory( void* pData )
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{
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#if defined(_XBOX1)
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return D3D_FreeContiguousMemory(pData);
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#elif defined(_XBOX360)
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return XMemFree( pData, MAKE_XALLOC_ATTRIBUTES( 0, 0, 0, 0, eXALLOCAllocatorId_GameMax,
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0, 0, 0, XALLOC_MEMTYPE_PHYSICAL ) );
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#endif
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}
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#ifdef _XBOX1
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char g_strMediaPath[512] = "D:\\Media\\";
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static HRESULT FindMediaFile( char *strPath, const char *strFilename, size_t strPathsize)
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{
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// Check for valid arguments
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if( strFilename == NULL || strPath == NULL )
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{
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RARCH_ERR("Util_FindMediaFile(): Invalid arguments\n" );
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return E_INVALIDARG;
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}
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// Default path is the filename itself as a fully qualified path
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strlcpy( strPath, strFilename, strPathsize);
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// Check for the ':' character to see if the filename is a fully
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// qualified path. If not, pre-pend the media directory
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if(strFilename[1] != ':')
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snprintf(strPath, strPathsize, "%s%s", g_strMediaPath, strFilename);
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// Try to open the file
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HANDLE hFile = CreateFile( strPath, GENERIC_READ, FILE_SHARE_READ, NULL,
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OPEN_EXISTING, 0, NULL );
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if( hFile == INVALID_HANDLE_VALUE )
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{
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RARCH_ERR("FindMediaFile(): Could not find file.\n");
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return 0x82000004;
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}
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// Found the file. Close the file and return
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CloseHandle( hFile );
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return S_OK;
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}
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#endif
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#if defined(_XBOX1)
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HRESULT PackedResource::Create( const char *strFilename,
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DWORD dwNumResourceTags, XBRESOURCE* pResourceTags)
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#elif defined(_XBOX360)
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HRESULT PackedResource::Create( const char *strFilename )
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#endif
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{
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#ifdef _XBOX1
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BOOL bHasResourceOffsetsTable = FALSE;
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// Find the media file
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CHAR strResourcePath[512];
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if( FAILED(FindMediaFile(strResourcePath, strFilename, sizeof(strResourcePath))))
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return E_FAIL;
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else
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strFilename = strResourcePath;
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#endif
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// Open the file
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HANDLE hFile;
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DWORD dwNumBytesRead;
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hFile = CreateFile( strFilename, GENERIC_READ, FILE_SHARE_READ, NULL,
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OPEN_EXISTING, FILE_ATTRIBUTE_READONLY, NULL );
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if( hFile == INVALID_HANDLE_VALUE )
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{
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RARCH_ERR( "PackedResource::Create(): File <%s> not found.\n", strFilename );
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return E_FAIL;
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}
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// Read in and verify the XPR magic header
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XPR_HEADER xprh;
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bool retval = ReadFile( hFile, &xprh, sizeof( XPR_HEADER ), &dwNumBytesRead, NULL );
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#if defined(_XBOX1)
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if( xprh.dwMagic == XPR0_MAGIC_VALUE )
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bHasResourceOffsetsTable = FALSE;
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else if( xprh.dwMagic == XPR1_MAGIC_VALUE )
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bHasResourceOffsetsTable = TRUE;
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else
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#elif defined(_XBOX360)
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if(!retval)
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{
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RARCH_ERR("Error reading XPR header in file %s.\n", strFilename );
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CloseHandle( hFile );
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return E_FAIL;
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}
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if( xprh.dwMagic != XPR2_MAGIC_VALUE )
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#endif
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{
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RARCH_ERR( "Invalid Xbox Packed Resource (.xpr) file: Magic = 0x%08lx\n", xprh.dwMagic );
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CloseHandle( hFile );
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return E_FAIL;
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}
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// Compute memory requirements
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#if defined(_XBOX1)
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m_dwSysMemDataSize = xprh.dwHeaderSize - sizeof(XPR_HEADER);
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m_dwVidMemDataSize = xprh.dwTotalSize - xprh.dwHeaderSize;
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#elif defined(_XBOX360)
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m_dwSysMemDataSize = xprh.dwHeaderSize;
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m_dwVidMemDataSize = xprh.dwDataSize;
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#endif
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// Allocate memory
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m_pSysMemData = (BYTE*)malloc(m_dwSysMemDataSize);
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if (m_pSysMemData == NULL)
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{
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RARCH_ERR( "Could not allocate system memory.\n" );
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m_dwSysMemDataSize = 0;
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return E_FAIL;
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}
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m_pVidMemData = ( BYTE* )AllocateContiguousMemory( m_dwVidMemDataSize,
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#if defined(_XBOX1)
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D3DTEXTURE_ALIGNMENT
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#elif defined(_XBOX360)
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XALLOC_PHYSICAL_ALIGNMENT_4K
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#endif
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);
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if( m_pVidMemData == NULL )
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{
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RARCH_ERR( "Could not allocate physical memory.\n" );
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m_dwSysMemDataSize = 0;
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m_dwVidMemDataSize = 0;
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free(m_pSysMemData);
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m_pSysMemData = NULL;
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return E_FAIL;
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}
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// Read in the data from the file
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if( !ReadFile( hFile, m_pSysMemData, m_dwSysMemDataSize, &dwNumBytesRead, NULL ) ||
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!ReadFile( hFile, m_pVidMemData, m_dwVidMemDataSize, &dwNumBytesRead, NULL ) )
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{
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RARCH_ERR( "Unable to read Xbox Packed Resource (.xpr) file\n" );
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CloseHandle( hFile );
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return E_FAIL;
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}
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// Done with the file
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CloseHandle( hFile );
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#ifdef _XBOX1
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if (bHasResourceOffsetsTable)
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{
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#endif
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// Extract resource table from the header data
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m_dwNumResourceTags = *( DWORD* )( m_pSysMemData + 0 );
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m_pResourceTags = ( XBRESOURCE* )( m_pSysMemData + 4 );
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// Patch up the resources
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for( DWORD i = 0; i < m_dwNumResourceTags; i++ )
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{
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m_pResourceTags[i].strName = ( CHAR* )( m_pSysMemData + ( DWORD )m_pResourceTags[i].strName );
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#ifdef _XBOX360
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// Fixup the texture memory
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if( ( m_pResourceTags[i].dwType & 0xffff0000 ) == ( RESOURCETYPE_TEXTURE & 0xffff0000 ) )
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{
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D3DTexture* pTexture = ( D3DTexture* )&m_pSysMemData[m_pResourceTags[i].dwOffset];
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// Adjust Base address according to where memory was allocated
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XGOffsetBaseTextureAddress( pTexture, m_pVidMemData, m_pVidMemData );
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}
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#endif
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}
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#ifdef _XBOX1
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}
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#endif
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#ifdef _XBOX1
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// Use user-supplied number of resources and the resource tags
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if( dwNumResourceTags != 0 || pResourceTags != NULL )
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{
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m_pResourceTags = pResourceTags;
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m_dwNumResourceTags = dwNumResourceTags;
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}
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#endif
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m_bInitialized = TRUE;
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return S_OK;
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}
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#ifdef _XBOX360
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void PackedResource::GetResourceTags( DWORD* pdwNumResourceTags,
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XBRESOURCE** ppResourceTags )
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{
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if (pdwNumResourceTags)
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(*pdwNumResourceTags) = m_dwNumResourceTags;
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if (ppResourceTags )
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(*ppResourceTags) = m_pResourceTags;
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}
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#endif
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void PackedResource::Destroy()
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{
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free(m_pSysMemData);
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m_pSysMemData = NULL;
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m_dwSysMemDataSize = 0L;
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if (m_pVidMemData != NULL)
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FreeContiguousMemory(m_pVidMemData);
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m_pVidMemData = NULL;
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m_dwVidMemDataSize = 0L;
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m_pResourceTags = NULL;
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m_dwNumResourceTags = 0L;
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m_bInitialized = FALSE;
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}
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BOOL PackedResource::Initialized() const
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{
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return m_bInitialized;
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}
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