sdl_glattr(3) [redhat man page]

SDL_GLattr(3)							 SDL API Reference						     SDL_GLattr(3)

NAME

       SDL_GLattr- SDL GL Attributes

ATTRIBUTES

       SDL_GL_RED_SIZE	   Size of the framebuffer red component, in bits

       SDL_GL_GREEN_SIZE   Size of the framebuffer green component, in bits

       SDL_GL_BLUE_SIZE    Size of the framebuffer blue component, in bits

       SDL_GL_ALPHA_SIZE   Size of the framebuffer alpha component, in bits

       SDL_GL_DOUBLEBUFFER 0 or 1, enable or disable double buffering

       SDL_GL_BUFFER_SIZE  Size of the framebuffer, in bits

       SDL_GL_DEPTH_SIZE   Size of the depth buffer, in bits

       SDL_GL_STENCIL_SIZE Size of the stencil buffer, in bits

       SDL_GL_ACCUM_RED_SIZE
			   Size of the accumulation buffer red component, in bits

       SDL_GL_ACCUM_GREEN_SIZE
			   Size of the accumulation buffer green component, in bits

       SDL_GL_ACCUM_BLUE_SIZE
			   Size of the accumulation buffer blue component, in bits

       SDL_GL_ACCUM_ALPHA_SIZE
			   Size of the accumulation buffer alpha component, in bits

DESCRIPTION

       While you can set most OpenGL attributes normally, the attributes list above must be known before SDL sets the video mode. These attributes
       a set and read with SDL_GL_SetAttribute and SDL_GL_GetAttribute.

SEE ALSO

       SDL_GL_SetAttribute, SDL_GL_GetAttribute

SDL
							      Tue 11 Sep 2001, 23:01						     SDL_GLattr(3)

GLGETCOLORTABLEPARAMETER(3G)											      GLGETCOLORTABLEPARAMETER(3G)

NAME

       glGetColorTableParameterfv, glGetColorTableParameteriv - get color lookup table parameters

C SPECIFICATION

       void glGetColorTableParameterfv( GLenum target,
					GLenum pname,
					GLfloat *params )
       void glGetColorTableParameteriv( GLenum target,
					GLenum pname,
					GLint *params )

PARAMETERS

       target  The   target   color   table.	Must   be   GL_COLOR_TABLE,   GL_POST_CONVOLUTION_COLOR_TABLE,	 GL_POST_COLOR_MATRIX_COLOR_TABLE,
	       GL_PROXY_COLOR_TABLE, GL_PROXY_POST_CONVOLUTION_COLOR_TABLE, GL_PROXY_POST_COLOR_MATRIX_COLOR_TABLE.

       pname   The  symbolic  name  of	a  color  lookup  table  parameter.    Must   be   one	 of   GL_COLOR_TABLE_BIAS,   GL_COLOR_TABLE_SCALE,
	       GL_COLOR_TABLE_FORMAT,	 GL_COLOR_TABLE_WIDTH,	 GL_COLOR_TABLE_RED_SIZE,   GL_COLOR_TABLE_GREEN_SIZE,	 GL_COLOR_TABLE_BLUE_SIZE,
	       GL_COLOR_TABLE_ALPHA_SIZE, GL_COLOR_TABLE_LUMINANCE_SIZE, or GL_COLOR_TABLE_INTENSITY_SIZE.

       params  A pointer to an array where the values of the parameter will be stored.

DESCRIPTION

       Returns parameters specific to color table target.

       When pname is set to GL_COLOR_TABLE_SCALE or GL_COLOR_TABLE_BIAS, glGetColorTableParameter returns the color table scale or bias parameters
       for  the  table	specified  by  target.	 For  these  queries,  target  must  be set to GL_COLOR_TABLE, GL_POST_CONVOLUTION_COLOR_TABLE, or
       GL_POST_COLOR_MATRIX_COLOR_TABLE and params points to an array of four elements, which receive the scale or bias factors  for  red,  green,
       blue, and alpha, in that order.

       glGetColorTableParameter  can  also be used to retrieve the  and size parameters for a color table. For these queries, set target to either
       the color table target or the proxy color table target.	The  and size parameters are set by glColorTable.

       The following table lists the  and size parameters that may be queried.	For each symbolic constant listed below  for  pname,  params  must
       point to an array of the given length, and receive the values indicated.

					   -------------------------------------------------------------------
					   Parameter			   N   Meaning
					   -------------------------------------------------------------------
					   GL_COLOR_TABLE_FORMAT	   1   Internal  (e.g. GL_RGBA)
					   GL_COLOR_TABLE_WIDTH 	   1   Number of elements in table
					   GL_COLOR_TABLE_RED_SIZE	   1   Size of red component, in bits
					   GL_COLOR_TABLE_GREEN_SIZE	   1   Size of green component
					   GL_COLOR_TABLE_BLUE_SIZE	   1   Size of blue component
					   GL_COLOR_TABLE_ALPHA_SIZE	   1   Size of alpha component
					   GL_COLOR_TABLE_LUMINANCE_SIZE   1   Size of luminance component
					   GL_COLOR_TABLE_INTENSITY_SIZE   1   Size of intensity component
					   -------------------------------------------------------------------

NOTES

       glGetColorTableParameter is present only if GL_ARB_imaging is returned when glGetString is called with an argument of GL_EXTENSIONS.

ERRORS

       GL_INVALID_ENUM is generated if target or pname is not an acceptable value.

       GL_INVALID_OPERATION  is generated if glGetColorTableParameter is executed between the execution of glBegin and the corresponding execution
       of glEnd.

SEE ALSO

       glColorTable(3G), glTexParameter(3G), glColorTableParameter(3G)

														      GLGETCOLORTABLEPARAMETER(3G)