RetroArch/xdk/xdk_resources.h

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/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2013 - Hans-Kristian Arntzen
* Copyright (C) 2011-2013 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef RARCH_XDK_RESOURCE_H
#define RARCH_XDK_RESOURCE_H
#include "xdk_defines.h"
DWORD XBResource_SizeOf( LPDIRECT3DRESOURCE pResource );
//structure member offsets matter
struct XBRESOURCE
{
#if defined(_XBOX1)
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CHAR* strName;
DWORD dwOffset;
#elif defined(_XBOX360)
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DWORD dwType;
DWORD dwOffset;
DWORD dwSize;
CHAR* strName;
#endif
};
enum
{
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RESOURCETYPE_USERDATA = ( ( 'U' << 24 ) | ( 'S' << 16 ) | ( 'E' << 8 ) | ( 'R' ) ),
RESOURCETYPE_TEXTURE = ( ( 'T' << 24 ) | ( 'X' << 16 ) | ( '2' << 8 ) | ( 'D' ) ),
RESOURCETYPE_VERTEXBUFFER = ( ( 'V' << 24 ) | ( 'B' << 16 ) | ( 'U' << 8 ) | ( 'F' ) ),
RESOURCETYPE_INDEXBUFFER = ( ( 'I' << 24 ) | ( 'B' << 16 ) | ( 'U' << 8 ) | ( 'F' ) ),
RESOURCETYPE_EOF = 0xffffffff
};
class PackedResource
{
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protected:
BYTE* m_pSysMemData; // Alloc'ed memory for resource headers etc.
DWORD m_dwSysMemDataSize;
BYTE* m_pVidMemData; // Alloc'ed memory for resource data, etc.
DWORD m_dwVidMemDataSize;
XBRESOURCE* m_pResourceTags; // Tags to associate names with the resources
DWORD m_dwNumResourceTags; // Number of resource tags
BOOL m_bInitialized; // Resource is fully initialized
public:
// Loads the resources out of the specified bundle
#if defined(_XBOX1)
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HRESULT Create( const char *strFilename, DWORD dwNumResourceTags = 0L,
XBRESOURCE* pResourceTags = NULL );
#elif defined(_XBOX360)
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HRESULT Create( const char * strFilename );
#endif
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void Destroy();
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BOOL Initialized() const;
#ifdef _XBOX360
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// Retrieves the resource tags
void GetResourceTags( DWORD* pdwNumResourceTags, XBRESOURCE** ppResourceTags );
#endif
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// Helper function to make sure a resource is registered
LPDIRECT3DRESOURCE RegisterResource( LPDIRECT3DRESOURCE pResource ) const
{
#ifdef _XBOX1
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// Register the resource, if it has not yet been registered. We mark
// a resource as registered by upping it's reference count.
if( pResource && ( pResource->Common & D3DCOMMON_REFCOUNT_MASK ) == 1 )
{
// Special case CPU-copy push buffers (which live in system memory)
if( ( pResource->Common & D3DCOMMON_TYPE_PUSHBUFFER ) &&
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( pResource->Common & D3DPUSHBUFFER_RUN_USING_CPU_COPY ) )
pResource->Data += (DWORD)m_pSysMemData;
else
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pResource->Register( m_pVidMemData );
pResource->AddRef();
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}
#endif
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return pResource;
}
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// Functions to retrieve resources by their offset
void *GetData( DWORD dwOffset ) const
{ return &m_pSysMemData[dwOffset]; }
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LPDIRECT3DRESOURCE GetResource( DWORD dwOffset ) const
{ return RegisterResource( (LPDIRECT3DRESOURCE)GetData(dwOffset) ); }
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LPDIRECT3DTEXTURE GetTexture( DWORD dwOffset ) const
{ return (LPDIRECT3DTEXTURE)GetResource( dwOffset ); }
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LPDIRECT3DVERTEXBUFFER GetVertexBuffer( DWORD dwOffset ) const
{ return (LPDIRECT3DVERTEXBUFFER)GetResource( dwOffset ); }
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// Functions to retrieve resources by their name
void *GetData( const CHAR* strName ) const;
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LPDIRECT3DRESOURCE GetResource( const CHAR* strName ) const
{ return RegisterResource( (LPDIRECT3DRESOURCE)GetData( strName ) ); }
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LPDIRECT3DTEXTURE GetTexture( const CHAR* strName ) const
{ return (LPDIRECT3DTEXTURE)GetResource( strName ); }
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LPDIRECT3DVERTEXBUFFER GetVertexBuffer( const CHAR* strName ) const
{ return (LPDIRECT3DVERTEXBUFFER)GetResource( strName ); }
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// Constructor/destructor
PackedResource();
~PackedResource();
};
#endif /* RARCH_XDK_RESOURCE_H */