trf_xorbuffer(3) [debian man page]

Trf_XorBuffer(3)					     Library Functions Manual						  Trf_XorBuffer(3)

NAME

       Trf_XorBuffer - XOR the bytes in a buffer with a mask.

SYNOPSIS

       #include <transform.h>

       void Trf_XorBuffer
       (
	    void *buffer,
	    void *mask,
	    int length
       );

PARAMETERS

       void *buffer
	      Buffer to xor the mask with.

       void *mask
	      Mask bytes xor'ed into the buffer.

       int length
	      Length of mask and buffer (in byte).

DESCRIPTION

       Internally used by the implementation of the various stream modes available to blockciphers.

SEE ALSO

       Trf_Init(3),  Trf_SafeInit(3),  Trf_IsInitialized(3),  Trf_CreateOptions(3),  Trf_DeleteOptions(3),  Trf_CheckOptions(3), Trf_SetOption(3),
       Trf_SetObjOption(3),  Trf_QueryOptions(3),  Trf_SeekQueryOptions(3),  Trf_WriteProc(3),	 Trf_CreateCtrlBlock(3),   Trf_DeleteCtrlBlock(3),
       Trf_TransformCharacter(3), Trf_TransformBuffer(3), Trf_FlushTransformation(3), Trf_ClearCtrlBlock(3), Trf_QueryMaxRead(3), Trf_Register(3),
       Trf_ConverterOptions(3), Trf_MDStart(3), Trf_MDUpdate(3), Trf_MDUpdateBuf(3), Trf_MDFinal(3), Trf_MDCheck(3), Trf_RegisterMessageDigest(3),
       Trf_LoadLibrary(3), Trf_ShiftRegister(3), Trf_FlipRegisterShort(3), Trf_FlipRegisterLong(3), Trf_InitStubs(3)

c2man transform.h						  27 August 2002						  Trf_XorBuffer(3)

GLSTENCILMASKSEPARAT(3G)					    OpenGL 3.3						  GLSTENCILMASKSEPARAT(3G)

NAME

       glStencilMaskSeparate - control the front and/or back writing of individual bits in the stencil planes

C SPECIFICATION

       void glStencilMaskSeparate(GLenum face, GLuint mask);

PARAMETERS

       face
	   Specifies whether the front and/or back stencil writemask is updated. Three symbolic constants are valid: GL_FRONT, GL_BACK, and
	   GL_FRONT_AND_BACK.

       mask
	   Specifies a bit mask to enable and disable writing of individual bits in the stencil planes. Initially, the mask is all 1's.

DESCRIPTION

       glStencilMaskSeparate controls the writing of individual bits in the stencil planes. The least significant n bits of mask, where n is the
       number of bits in the stencil buffer, specify a mask. Where a 1 appears in the mask, it's possible to write to the corresponding bit in the
       stencil buffer. Where a 0 appears, the corresponding bit is write-protected. Initially, all bits are enabled for writing.

       There can be two separate mask writemasks; one affects back-facing polygons, and the other affects front-facing polygons as well as other
       non-polygon primitives.	glStencilMask() sets both front and back stencil writemasks to the same values, as if glStencilMaskSeparate() were
       called with face set to GL_FRONT_AND_BACK.

ERRORS

       GL_INVALID_ENUM is generated if face is not one of the accepted tokens.

ASSOCIATED GETS

       glGet() with argument GL_STENCIL_WRITEMASK, GL_STENCIL_BACK_WRITEMASK, or GL_STENCIL_BITS

SEE ALSO

       glColorMask(), glDepthMask(), glStencilFunc(), glStencilFuncSeparate(), glStencilMask(), glStencilOp(), glStencilOpSeparate()

COPYRIGHT

       Copyright (C) 2006 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication
       License, v 1.0, 8 June 1999.  http://opencontent.org/openpub/.

OpenGL 3.3							    03/08/2011						  GLSTENCILMASKSEPARAT(3G)