www.pudn.com > bookcode.rar > d3dfmtutils.cpp

//d3dfmtutils.cpp 
//Ernest Pazera 
//05OCT2001 
//TGO-01-F 
//Libs: d3d8.lib 
 
//include the header 
#include "d3dfmtutils.h" 
 
//get string name for format 
void GetFormatName ( D3DFORMAT Format , char* FormatName )  
{ 
	//set default response 
	strcpy ( FormatName , "Unknown" ) ; 
	//which format do we have? 
	switch ( Format ) 
	{ 
	case D3DFMT_R8G8B8 ://24 bpp, 8 for r,g,b 
		{ 
			strcpy ( FormatName , "R8G8B8" ) ; 
		} break ; 
	case D3DFMT_A8R8G8B8 ://32 bpp, 8 for a,r,g,b 
		{ 
			strcpy ( FormatName , "A8R8G8B8" ) ; 
		} break ; 
	case D3DFMT_X8R8G8B8 ://32 bpp, 8 for r, g, b 
		{ 
			strcpy ( FormatName , "X8R8G8B8" ) ; 
		} break ; 
	case D3DFMT_R5G6B5 ://16bpp, 5 for r,b, 6 for g 
		{ 
			strcpy ( FormatName , "R5G6B5" ) ; 
		} break ; 
	case D3DFMT_X1R5G5B5 ://16 bpp, 5 for r,g,b 
		{ 
			strcpy ( FormatName , "X1R5G5B5" ) ; 
		} break ; 
	case D3DFMT_A1R5G5B5 ://16 bpp, 5 for r,g,b, 1 for a 
		{ 
			strcpy ( FormatName , "A1R5G5B5" ) ; 
		} break ; 
	case D3DFMT_A4R4G4B4 ://16 bpp, 4 for a,r,g,b 
		{ 
			strcpy ( FormatName , "A4R4G4B4" ) ; 
		} break ; 
	case D3DFMT_R3G3B2 ://8bpp, 3 for r,g, 2 for b 
		{ 
			strcpy ( FormatName , "R3G3B2" ) ; 
		} break ; 
	case D3DFMT_A8 ://8bpp, 8 for a 
		{ 
			strcpy ( FormatName , "A8" ) ; 
		} break ; 
	case D3DFMT_A8R3G3B2 ://16bpp, 8 for a, 3 for r,g, 2 for b 
		{ 
			strcpy ( FormatName , "A8R3G3B2" ) ; 
		} break ; 
	case D3DFMT_X4R4G4B4 ://16bpp, 4 for r,g,b 
		{ 
			strcpy ( FormatName , "X4R4G4B4" ) ; 
		} break ; 
	} 
} 
 
//get bits for components 
UINT GetFormatRBits ( D3DFORMAT Format ) 	//red 
{ 
	//which format do we have? 
	switch ( Format ) 
	{ 
	case D3DFMT_R8G8B8 ://24 bpp, 8 for r,g,b 
		{ 
			return ( 8 ) ; 
		} break ; 
	case D3DFMT_A8R8G8B8 ://32 bpp, 8 for a,r,g,b 
		{ 
			return ( 8 ) ; 
		} break ; 
	case D3DFMT_X8R8G8B8 ://32 bpp, 8 for r, g, b 
		{ 
			return ( 8 ) ; 
		} break ; 
	case D3DFMT_R5G6B5 ://16bpp, 5 for r,b, 6 for g 
		{ 
			return ( 5 ) ; 
		} break ; 
	case D3DFMT_X1R5G5B5 ://16 bpp, 5 for r,g,b 
		{ 
			return ( 5 ) ; 
		} break ; 
	case D3DFMT_A1R5G5B5 ://16 bpp, 5 for r,g,b, 1 for a 
		{ 
			return ( 5 ) ; 
		} break ; 
	case D3DFMT_A4R4G4B4 ://16 bpp, 4 for a,r,g,b 
		{ 
			return ( 4 ) ; 
		} break ; 
	case D3DFMT_R3G3B2 ://8bpp, 3 for r,g, 2 for b 
		{ 
			return ( 3 ) ; 
		} break ; 
	case D3DFMT_A8R3G3B2 ://16bpp, 8 for a, 3 for r,g, 2 for b 
		{ 
			return ( 3 ) ; 
		} break ; 
	case D3DFMT_X4R4G4B4 ://16bpp, 4 for r,g,b 
		{ 
			return ( 4 ) ; 
		} break ; 
	} 
	//not one of the above, return 0 
	return ( 0 ) ; 
} 
 
UINT GetFormatGBits ( D3DFORMAT Format ) 	//green 
{ 
	//which format do we have? 
	switch ( Format ) 
	{ 
	case D3DFMT_R8G8B8 ://24 bpp, 8 for r,g,b 
		{ 
			return ( 8 ) ; 
		} break ; 
	case D3DFMT_A8R8G8B8 ://32 bpp, 8 for a,r,g,b 
		{ 
			return ( 8 ) ; 
		} break ; 
	case D3DFMT_X8R8G8B8 ://32 bpp, 8 for r, g, b 
		{ 
			return ( 8 ) ; 
		} break ; 
	case D3DFMT_R5G6B5 ://16bpp, 5 for r,b, 6 for g 
		{ 
			return ( 6 ) ; 
		} break ; 
	case D3DFMT_X1R5G5B5 ://16 bpp, 5 for r,g,b 
		{ 
			return ( 5 ) ; 
		} break ; 
	case D3DFMT_A1R5G5B5 ://16 bpp, 5 for r,g,b, 1 for a 
		{ 
			return ( 5 ) ; 
		} break ; 
	case D3DFMT_A4R4G4B4 ://16 bpp, 4 for a,r,g,b 
		{ 
			return ( 4 ) ; 
		} break ; 
	case D3DFMT_R3G3B2 ://8bpp, 3 for r,g, 2 for b 
		{ 
			return ( 3 ) ; 
		} break ; 
	case D3DFMT_A8R3G3B2 ://16bpp, 8 for a, 3 for r,g, 2 for b 
		{ 
			return ( 3 ) ; 
		} break ; 
	case D3DFMT_X4R4G4B4 ://16bpp, 4 for r,g,b 
		{ 
			return ( 4 ) ; 
		} break ; 
	} 
	//not one of the above, return 0 
	return ( 0 ) ; 
} 
 
UINT GetFormatBBits ( D3DFORMAT Format ) 	//blue 
{ 
	//which format do we have? 
	switch ( Format ) 
	{ 
	case D3DFMT_R8G8B8 ://24 bpp, 8 for r,g,b 
		{ 
			return ( 8 ) ; 
		} break ; 
	case D3DFMT_A8R8G8B8 ://32 bpp, 8 for a,r,g,b 
		{ 
			return ( 8 ) ; 
		} break ; 
	case D3DFMT_X8R8G8B8 ://32 bpp, 8 for r, g, b 
		{ 
			return ( 8 ) ; 
		} break ; 
	case D3DFMT_R5G6B5 ://16bpp, 5 for r,b, 6 for g 
		{ 
			return ( 5 ) ; 
		} break ; 
	case D3DFMT_X1R5G5B5 ://16 bpp, 5 for r,g,b 
		{ 
			return ( 5 ) ; 
		} break ; 
	case D3DFMT_A1R5G5B5 ://16 bpp, 5 for r,g,b, 1 for a 
		{ 
			return ( 5 ) ; 
		} break ; 
	case D3DFMT_A4R4G4B4 ://16 bpp, 4 for a,r,g,b 
		{ 
			return ( 4 ) ; 
		} break ; 
	case D3DFMT_R3G3B2 ://8bpp, 3 for r,g, 2 for b 
		{ 
			return ( 2 ) ; 
		} break ; 
	case D3DFMT_A8R3G3B2 ://16bpp, 8 for a, 3 for r,g, 2 for b 
		{ 
			return ( 2 ) ; 
		} break ; 
	case D3DFMT_X4R4G4B4 ://16bpp, 4 for r,g,b 
		{ 
			return ( 4 ) ; 
		} break ; 
	} 
	//not one of the above, return 0 
	return ( 0 ) ; 
} 
 
UINT GetFormatABits ( D3DFORMAT Format ) 	//alpha 
{ 
	//which format do we have? 
	switch ( Format ) 
	{ 
	case D3DFMT_A8R8G8B8 ://32 bpp, 8 for a,r,g,b 
		{ 
			return ( 8 ) ; 
		} break ; 
	case D3DFMT_A1R5G5B5 ://16 bpp, 5 for r,g,b, 1 for a 
		{ 
			return ( 1 ) ; 
		} break ; 
	case D3DFMT_A4R4G4B4 ://16 bpp, 4 for a,r,g,b 
		{ 
			return ( 4 ) ; 
		} break ; 
	case D3DFMT_A8 ://8bpp, 8 for a 
		{ 
			return ( 8 ) ; 
		} break ; 
	case D3DFMT_A8R3G3B2 ://16bpp, 8 for a, 3 for r,g, 2 for b 
		{ 
			return ( 8 ) ; 
		} break ; 
	} 
	//not one of the above, return 0 
	return ( 0 ) ; 
} 
 
UINT GetFormatDBits ( D3DFORMAT Format ) 	//depth 
{ 
	//which format do we have? 
	switch ( Format )  
	{ 
	case D3DFMT_D16_LOCKABLE : 
		{ 
			return ( 16 ) ; 
		} break ; 
	case D3DFMT_D32 : 
		{ 
			return ( 32 ) ; 
		} break ; 
	case D3DFMT_D15S1 : 
		{ 
			return ( 15 ) ; 
		} break ; 
	case D3DFMT_D24S8 : 
		{ 
			return ( 24 ) ; 
		} break ; 
	case D3DFMT_D16 : 
		{ 
			return ( 16 ) ; 
		} break ; 
	case D3DFMT_D24X8 : 
		{ 
			return ( 24 ) ; 
		} break ; 
	case D3DFMT_D24X4S4 : 
		{ 
			return ( 24 ) ; 
		} break ; 
	} 
	//not found, return 0 
	return ( 0 ) ; 
} 
 
UINT GetFormatSBits ( D3DFORMAT Format ) 	//stencil 
{ 
	//which format do we have? 
	switch ( Format )  
	{ 
	case D3DFMT_D15S1 : 
		{ 
			return ( 1 ) ; 
		} break ; 
	case D3DFMT_D24S8 : 
		{ 
			return ( 8 ) ; 
		} break ; 
	case D3DFMT_D24X4S4 : 
		{ 
			return ( 4 ) ; 
		} break ; 
	} 
	//not found, return 0 
	return ( 0 ) ; 
} 
 
//get bit masks for components 
UINT GetFormatRMask ( D3DFORMAT Format ) 	//red 
{ 
	//which format do we have? 
	switch ( Format ) 
	{ 
	case D3DFMT_R8G8B8 ://24 bpp, 8 for r,g,b 
		{ 
			return ( 0x00FF0000 ) ; 
		} break ; 
	case D3DFMT_A8R8G8B8 ://32 bpp, 8 for a,r,g,b 
		{ 
			return ( 0x00FF0000 ) ; 
		} break ; 
	case D3DFMT_X8R8G8B8 ://32 bpp, 8 for r, g, b 
		{ 
			return ( 0x00FF0000 ) ; 
		} break ; 
	case D3DFMT_R5G6B5 ://16bpp, 5 for r,b, 6 for g 
		{ 
			return ( 0xF800 ) ; 
		} break ; 
	case D3DFMT_X1R5G5B5 ://16 bpp, 5 for r,g,b 
		{ 
			return ( 0x7C00 ) ; 
		} break ; 
	case D3DFMT_A1R5G5B5 ://16 bpp, 5 for r,g,b, 1 for a 
		{ 
			return ( 0x7C00 ) ; 
		} break ; 
	case D3DFMT_A4R4G4B4 ://16 bpp, 4 for a,r,g,b 
		{ 
			return ( 0x0F00 ) ; 
		} break ; 
	case D3DFMT_R3G3B2 ://8bpp, 3 for r,g, 2 for b 
		{ 
			return ( 0xE0 ) ; 
		} break ; 
	case D3DFMT_A8R3G3B2 ://16bpp, 8 for a, 3 for r,g, 2 for b 
		{ 
			return ( 0x00E0 ) ; 
		} break ; 
	case D3DFMT_X4R4G4B4 ://16bpp, 4 for r,g,b 
		{ 
			return ( 0x0F00 ) ; 
		} break ; 
	} 
	//not one of the above, return 0 
	return ( 0 ) ; 
} 
 
UINT GetFormatGMask ( D3DFORMAT Format ) 	//green 
{ 
	//which format do we have? 
	switch ( Format ) 
	{ 
	case D3DFMT_R8G8B8 ://24 bpp, 8 for r,g,b 
		{ 
			return ( 0x0000FF00 ) ; 
		} break ; 
	case D3DFMT_A8R8G8B8 ://32 bpp, 8 for a,r,g,b 
		{ 
			return ( 0x0000FF00 ) ; 
		} break ; 
	case D3DFMT_X8R8G8B8 ://32 bpp, 8 for r, g, b 
		{ 
			return ( 0x0000FF00 ) ; 
		} break ; 
	case D3DFMT_R5G6B5 ://16bpp, 5 for r,b, 6 for g 
		{ 
			return ( 0x07E0 ) ; 
		} break ; 
	case D3DFMT_X1R5G5B5 ://16 bpp, 5 for r,g,b 
		{ 
			return ( 0x03E0 ) ; 
		} break ; 
	case D3DFMT_A1R5G5B5 ://16 bpp, 5 for r,g,b, 1 for a 
		{ 
			return ( 0x03E0 ) ; 
		} break ; 
	case D3DFMT_A4R4G4B4 ://16 bpp, 4 for a,r,g,b 
		{ 
			return ( 0x00F0 ) ; 
		} break ; 
	case D3DFMT_R3G3B2 ://8bpp, 3 for r,g, 2 for b 
		{ 
			return ( 0x1C ) ; 
		} break ; 
	case D3DFMT_A8R3G3B2 ://16bpp, 8 for a, 3 for r,g, 2 for b 
		{ 
			return ( 0x001C ) ; 
		} break ; 
	case D3DFMT_X4R4G4B4 ://16bpp, 4 for r,g,b 
		{ 
			return ( 0x00F0 ) ; 
		} break ; 
	} 
	//not one of the above, return 0 
	return ( 0 ) ; 
} 
 
UINT GetFormatBMask ( D3DFORMAT Format ) 	//blue 
{ 
	//which format do we have? 
	switch ( Format ) 
	{ 
	case D3DFMT_R8G8B8 ://24 bpp, 8 for r,g,b 
		{ 
			return ( 0x000000FF ) ; 
		} break ; 
	case D3DFMT_A8R8G8B8 ://32 bpp, 8 for a,r,g,b 
		{ 
			return ( 0x000000FF ) ; 
		} break ; 
	case D3DFMT_X8R8G8B8 ://32 bpp, 8 for r, g, b 
		{ 
			return ( 0x000000FF ) ; 
		} break ; 
	case D3DFMT_R5G6B5 ://16bpp, 5 for r,b, 6 for g 
		{ 
			return ( 0x001F ) ; 
		} break ; 
	case D3DFMT_X1R5G5B5 ://16 bpp, 5 for r,g,b 
		{ 
			return ( 0x001F ) ; 
		} break ; 
	case D3DFMT_A1R5G5B5 ://16 bpp, 5 for r,g,b, 1 for a 
		{ 
			return ( 0x001F ) ; 
		} break ; 
	case D3DFMT_A4R4G4B4 ://16 bpp, 4 for a,r,g,b 
		{ 
			return ( 0x000F ) ; 
		} break ; 
	case D3DFMT_R3G3B2 ://8bpp, 3 for r,g, 2 for b 
		{ 
			return ( 0x03 ) ; 
		} break ; 
	case D3DFMT_A8R3G3B2 ://16bpp, 8 for a, 3 for r,g, 2 for b 
		{ 
			return ( 0x03 ) ; 
		} break ; 
	case D3DFMT_X4R4G4B4 ://16bpp, 4 for r,g,b 
		{ 
			return ( 0x000f ) ; 
		} break ; 
	} 
	//not one of the above, return 0 
	return ( 0 ) ; 
} 
 
UINT GetFormatAMask ( D3DFORMAT Format ) 	//alpha 
{ 
	//which format do we have? 
	switch ( Format ) 
	{ 
	case D3DFMT_A8R8G8B8 ://32 bpp, 8 for a,r,g,b 
		{ 
			return ( 0xFF000000 ) ; 
		} break ; 
	case D3DFMT_A1R5G5B5 ://16 bpp, 5 for r,g,b, 1 for a 
		{ 
			return ( 0x8000 ) ; 
		} break ; 
	case D3DFMT_A4R4G4B4 ://16 bpp, 4 for a,r,g,b 
		{ 
			return ( 0xF000 ) ; 
		} break ; 
	case D3DFMT_A8 ://8bpp, 8 for a 
		{ 
			return ( 0xFF ) ; 
		} break ; 
	case D3DFMT_A8R3G3B2 ://16bpp, 8 for a, 3 for r,g, 2 for b 
		{ 
			return ( 0xFF00 ) ; 
		} break ; 
	} 
	//not one of the above, return 0 
	return ( 0 ) ; 
} 
 
UINT GetFormatDMask ( D3DFORMAT Format ) 	//depth 
{ 
	//which format do we have? 
	switch ( Format )  
	{ 
	case D3DFMT_D16_LOCKABLE : 
		{ 
			return ( 0xFFFF ) ; 
		} break ; 
	case D3DFMT_D32 : 
		{ 
			return ( 0xFFFFFFFF ) ; 
		} break ; 
	case D3DFMT_D15S1 : 
		{ 
			return ( 0xFFFE ) ; 
		} break ; 
	case D3DFMT_D24S8 : 
		{ 
			return ( 0xFFFFFF00 ) ; 
		} break ; 
	case D3DFMT_D16 : 
		{ 
			return ( 0xFFFF ) ; 
		} break ; 
	case D3DFMT_D24X8 : 
		{ 
			return ( 0xFFFFFF00 ) ; 
		} break ; 
	case D3DFMT_D24X4S4 : 
		{ 
			return ( 0xFFFFFF00 ) ; 
		} break ; 
	} 
	//not found, return 0 
	return ( 0 ) ; 
} 
 
UINT GetFormatSMask ( D3DFORMAT Format ) 	//stencil 
{ 
	//which format do we have? 
	switch ( Format )  
	{ 
	case D3DFMT_D15S1 : 
		{ 
			return ( 0x0001 ) ; 
		} break ; 
	case D3DFMT_D24S8 : 
		{ 
			return ( 0x000000FF ) ; 
		} break ; 
	case D3DFMT_D24X4S4 : 
		{ 
			return ( 0x0000000F ) ; 
		} break ; 
	} 
	//not found, return 0 
	return ( 0 ) ; 
}