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stencil.c File Reference

Stencil operations. More...

#include "glheader.h"
#include "imports.h"
#include "context.h"
#include "depth.h"
#include "macros.h"
#include "stencil.h"
#include "mtypes.h"
#include "enable.h"

Functions
void GLAPIENTRY	_mesa_ClearStencil (GLint s)
	Set the clear value for the stencil buffer. More...
void GLAPIENTRY	_mesa_StencilFunc (GLenum func, GLint ref, GLuint mask)
	Set the function and reference value for stencil testing. More...
void GLAPIENTRY	_mesa_StencilMask (GLuint mask)
	Set the stencil writing mask. More...
void GLAPIENTRY	_mesa_StencilOp (GLenum fail, GLenum zfail, GLenum zpass)
	Set the stencil test actions. More...
void GLAPIENTRY	_mesa_ActiveStencilFaceEXT (GLenum face)
void	_mesa_init_stencil (GLcontext *ctx)
	Initialize the context stipple state. More...

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Detailed Description

Stencil operations.

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Function Documentation

void GLAPIENTRY _mesa_ActiveStencilFaceEXT (  GLenum    face )

void GLAPIENTRY _mesa_ClearStencil (  GLint    s )

Set the clear value for the stencil buffer. Parameters: s  clear value. See also: glClearStencil(). Updates gl_stencil_attrib::Clear. On change flushes the vertices and notifies the driver via the dd_function_table::ClearStencil callback.

void _mesa_init_stencil (  GLcontext *    ctx )

Initialize the context stipple state. Parameters: ctx  GL context. Initializes __GLcontextRec::Stencil attribute group.

void GLAPIENTRY _mesa_StencilFunc (  GLenum    func, GLint    ref, GLuint    mask )

Set the function and reference value for stencil testing. Parameters: func  test function. ref  reference value. mask  bitmask. See also: glStencilFunc(). Verifies the parameters and updates the respective values in __GLcontextRec::Stencil. On change flushes the vertices and notifies the driver via the dd_function_table::StencilFunc callback.

void GLAPIENTRY _mesa_StencilMask (  GLuint    mask )

Set the stencil writing mask. Parameters: mask  bit-mask to enable/disable writing of individual bits in the stencil planes. See also: glStencilMask(). Updates gl_stencil_attrib::WriteMask. On change flushes the vertices and notifies the driver via the dd_function_table::StencilMask callback.

void GLAPIENTRY _mesa_StencilOp (  GLenum    fail, GLenum    zfail, GLenum    zpass )

Set the stencil test actions. Parameters: fail  action to take when stencil test fails. zfail  action to take when stencil test passes, but the depth test fails. zpass  action to take when stencil test passes and the depth test passes (or depth testing is not enabled). See also: glStencilOp(). Verifies the parameters and updates the respective fields in __GLcontextRec::Stencil. On change flushes the vertices and notifies the driver via the dd_function_table::StencilOp callback.

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