Manual Reference Pages  - GLPUSHATTRIB (3G)

NAME

glPushAttrib, glPopAttrib - push and pop the server attribute stack

CONTENTS

C Specification
Parameters
C Specification
Description
Notes
Errors
Associated Gets
See Also

C SPECIFICATION

void glPushAttrib( GLbitfield mask )

PARAMETERS

mask Specifies a mask that indicates which attributes to save. Values for mask are listed below.

C SPECIFICATION

void glPopAttrib( void )

DESCRIPTION

 glPushAttrib takes one argument, a mask that indicates which groups of state variables to save on the attribute stack. Symbolic constants are used to set bits in the mask. mask is typically constructed by ORing several of these constants together. The special mask  GL_ALL_ATTRIB_BITS can be used to save all stackable states.

The symbolic mask constants and their associated GL state are as follows (the second column lists which attributes are saved):

 GL_ACCUM_BUFFER_BITAccumulation buffer clear value
 GL_COLOR_BUFFER_BIT GL_ALPHA_TEST enable bit
 Alpha test function and reference value
  GL_BLEND enable bit
 Blending source and destination functions
 Constant blend color
 Blending equation
  GL_DITHER enable bit
  GL_DRAW_BUFFER setting
  GL_COLOR_LOGIC_OP enable bit
  GL_INDEX_LOGIC_OP enable bit
 Logic op function
 Color mode and index mode clear values
 Color mode and index mode writemasks
 GL_CURRENT_BITCurrent RGBA color
 Current color index
 Current normal vector
 Current texture coordinates
 Current raster position
  GL_CURRENT_RASTER_POSITION_VALID flag
 RGBA color associated with current raster position
 Color index associated with current raster position
 Texture coordinates associated with current raster position
  GL_EDGE_FLAG flag
 GL_DEPTH_BUFFER_BIT GL_DEPTH_TEST enable bit
 Depth buffer test function
 Depth buffer clear value
  GL_DEPTH_WRITEMASK enable bit
 GL_ENABLE_BIT GL_ALPHA_TEST flag
  GL_AUTO_NORMAL flag
  GL_BLEND flag
 Enable bits for the user-definable clipping planes
  GL_COLOR_MATERIAL
  GL_CULL_FACE flag
  GL_DEPTH_TEST flag
  GL_DITHER flag
  GL_FOG flag
  GL_LIGHTi where 0 <= iGL_MAX_LIGHTS
  GL_LIGHTING flag
  GL_LINE_SMOOTH flag
  GL_LINE_STIPPLE flag
  GL_COLOR_LOGIC_OP flag
  GL_INDEX_LOGIC_OP flag
  GL_MAP1_x where x is a map type
  GL_MAP2_x where x is a map type
  GL_NORMALIZE flag
  GL_POINT_SMOOTH flag
  GL_POLYGON_OFFSET_LINE flag
  GL_POLYGON_OFFSET_FILL flag
  GL_POLYGON_OFFSET_POINT flag
  GL_POLYGON_SMOOTH flag
  GL_POLYGON_STIPPLE flag
  GL_SCISSOR_TEST flag
  GL_STENCIL_TEST flag
  GL_TEXTURE_1D flag
  GL_TEXTURE_2D flag
  GL_TEXTURE_3D flag
 Flags  GL_TEXTURE_GEN_x where x is S, T, R, or Q
 GL_EVAL_BIT GL_MAP1_x enable bits, where x is a map type
  GL_MAP2_x enable bits, where x is a map type
 1D grid endpoints and divisions
 2D grid endpoints and divisions
  GL_AUTO_NORMAL enable bit
 GL_FOG_BIT GL_FOG enable bit
 Fog color
 Fog density
 Linear fog start
 Linear fog end
 Fog index
  GL_FOG_MODE value
 GL_HINT_BIT GL_PERSPECTIVE_CORRECTION_HINT setting
  GL_POINT_SMOOTH_HINT setting
  GL_LINE_SMOOTH_HINT setting
  GL_POLYGON_SMOOTH_HINT setting
  GL_FOG_HINT setting
 GL_LIGHTING_BIT GL_COLOR_MATERIAL enable bit
  GL_COLOR_MATERIAL_FACE value
 Color material parameters that are tracking the current color
 Ambient scene color
  GL_LIGHT_MODEL_LOCAL_VIEWER value
  GL_LIGHT_MODEL_TWO_SIDE setting
  GL_LIGHTING enable bit
 Enable bit for each light
 Ambient, diffuse, and specular intensity for each light
 Direction, position, exponent, and cutoff angle for each light
 Constant, linear, and quadratic attenuation factors for each light
 Ambient, diffuse, specular, and emissive color for each material
 Ambient, diffuse, and specular color indices for each material
 Specular exponent for each material
  GL_SHADE_MODEL setting
 GL_LINE_BIT GL_LINE_SMOOTH flag
  GL_LINE_STIPPLE enable bit
 Line stipple pattern and repeat counter
 Line width
 GL_LIST_BIT GL_LIST_BASE setting
 GL_PIXEL_MODE_BIT GL_RED_BIAS and  GL_RED_SCALE settings
  GL_GREEN_BIAS and  GL_GREEN_SCALE values
  GL_BLUE_BIAS and  GL_BLUE_SCALE
  GL_ALPHA_BIAS and  GL_ALPHA_SCALE
  GL_DEPTH_BIAS and  GL_DEPTH_SCALE
  GL_INDEX_OFFSET and  GL_INDEX_SHIFT values
  GL_MAP_COLOR and  GL_MAP_STENCIL flags
  GL_ZOOM_X and  GL_ZOOM_Y factors
  GL_READ_BUFFER setting
 GL_POINT_BIT GL_POINT_SMOOTH flag
 Point size
 GL_POLYGON_BIT GL_CULL_FACE enable bit
  GL_CULL_FACE_MODE value
  GL_FRONT_FACE indicator
  GL_POLYGON_MODE setting
  GL_POLYGON_SMOOTH flag
  GL_POLYGON_STIPPLE enable bit
  GL_POLYGON_OFFSET_FILL flag
  GL_POLYGON_OFFSET_LINE flag
  GL_POLYGON_OFFSET_POINT flag
  GL_POLYGON_OFFSET_FACTOR
  GL_POLYGON_OFFSET_UNITS
 GL_POLYGON_STIPPLE_BITPolygon stipple image
 GL_SCISSOR_BIT GL_SCISSOR_TEST flag
 Scissor box
 GL_STENCIL_BUFFER_BIT GL_STENCIL_TEST enable bit
 Stencil function and reference value
 Stencil value mask
 Stencil fail, pass, and depth buffer pass actions
 Stencil buffer clear value
 Stencil buffer writemask
 GL_TEXTURE_BITEnable bits for the four texture coordinates
 Border color for each texture image
 Minification function for each texture image
 Magnification function for each texture image
 Texture coordinates and wrap mode for each texture image
 Color and mode for each texture environment
 Enable bits  GL_TEXTURE_GEN_x, x is S, T, R, and Q
  GL_TEXTURE_GEN_MODE setting for S, T, R, and Q
  glTexGen plane equations for S, T, R, and Q
 Current texture bindings (for example,  GL_TEXTURE_BINDING_2D)
 GL_TRANSFORM_BITCoefficients of the six clipping planes
 Enable bits for the user-definable clipping planes
  GL_MATRIX_MODE value
  GL_NORMALIZE flag
  GL_RESCALE_NORMAL flag
 GL_VIEWPORT_BITDepth range (near and far)
 Viewport origin and extent

 glPopAttrib restores the values of the state variables saved with the last
 glPushAttrib command. Those not saved are left unchanged.

It is an error to push attributes onto a full stack, or to pop attributes off an empty stack. In either case, the error flag is set and no other change is made to GL state.

Initially, the attribute stack is empty.

NOTES

Not all values for GL state can be saved on the attribute stack. For example, render mode state, and select and feedback state cannot be saved. Client state must be saved with  glPushClientAttrib.

The depth of the attribute stack depends on the implementation, but it must be at least 16.

When the  GL_ARB_multitexture extension is supported, pushing and popping texture state apples to all supported texture units.

ERRORS

 GL_STACK_OVERFLOW is generated if  glPushAttrib is called while the attribute stack is full.

 GL_STACK_UNDERFLOW is generated if  glPopAttrib is called while the attribute stack is empty.

 GL_INVALID_OPERATION is generated if  glPushAttrib or  glPopAttrib is executed between the execution of  glBegin and the corresponding execution of  glEnd.

ASSOCIATED GETS

 glGet with argument  GL_ATTRIB_STACK_DEPTH
 glGet with argument  GL_MAX_ATTRIB_STACK_DEPTH

SEE ALSO

 glGet(3G),  glGetClipPlane(3G),  glGetError(3G),  glGetLight(3G),  glGetMap(3G),  glGetMaterial(3G),
 glGetPixelMap(3G),  glGetPolygonStipple(3G),  glGetString(3G),  glGetTexEnv(3G),  glGetTexGen(3G),  glGetTexImage(3G),  glGetTexLevelParameter(3G),  glGetTexParameter(3G),  glIsEnabled(3G),  glPushClientAttrib(3G)
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GLPUSHATTRIB (3G)
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