Changed Operators

Table A-1

Operator	Description
xgl_inquire()	Added areturn value to indicate the X extensions supported by the frame buffer. Currently, only a query to the multibuffer extension to X (MBX) is provided.

New Attributes

Table A-2

Attribute	Description
XGL_3D_CTX_SURF_FRONT_TMAP_NUM XGL_3D_CTX_SURF_BACK_TMAP_NUM XGL_3D_CTX_SURF_FRONT_TMAP XGL_3D_CTX_SURF_BACK_TMAP XGL_3D_CTX_SURF_FRONT_TMAP_SWITCHES XGL_3D_CTX_SURF_BACK_TMAP_SWITCHES	Context attributes that apply one or more textures to the front or back of geometric objects. These attributes specify a list of Texture Map objects, specify the number of Texture Map objects, and specify which of the Texture Map objects should be applied.
XGL_3D_SURF_TMAP_PERSP_CORRECTION	Specifies the method used to compute texture coordinate values for surface interiors.
XGL_3D_CTX_SURF_LIGHTING_NORMAL_FLIP	Defines how surface normals are treated for lighting.
XGL_PCACHE_CONTEXT	Associates a Pcache object with a 2D or 3D Context.
XGL_CTX_PAINT_TYPE	Sets the paint type on a transparent overlay window.
XGL_CTX_NEW_FRAME_PAINT_TYPE	Defines the paint type used when an overlay windows is cleared with xgl_context_new_frame().
XGL_TMAP_DESCRIPTOR	Associates the texture descriptor structure with the Texture Map object.
XGL_TMAP_COORD_SOURCE	Specifies the initial source within a primitive's vertex data of the texture coordinate.
XGL_TMAP_DOMAIN	Specifies the domain to which the texture is to be applied.
XGL_TMAP_PARAM_TYPE	Defines the parameterization method for mapping a texture to a 3D surface.
XGL_TMAP_T0_INDEX XGL_TMAP_T1_INDEX	When the source of the texture coordinates is the floating point data, these attributes define the indices into the vertex data array of the surface primitives.

Table A-2

Attribute	Description
XGL_WIN_RAS_MULTIBUFFER	Requests multibuffering using the MBX extension to X for a Window Raster.
XGL_WIN_RAS_MBUF_DRAW	Specifies the buffer to read and write pixels into when using MBX multibuffering.

Deleted Attributes

Table A-3

Attribute	Description
XGL_CMAP_COLOR_CUBE_RSIZE XGL_CMAP_COLOR_CUBE_GSIZE XGL_CMAP_COLOR_CUBE_BSIZE	Deleted.Use the XGL_CMAP_COLOR_CUBE_SIZE attribute, which contains all three color cube size values.
XGL_CTX_RENDERING	Deleted. Use XGL_CTX_RENDER_BUFFER.
XGL_CTX_VIEW_MODEL_DATA_TYPE	Deleted.
XGL_DEV_PICK_BUFFER_SIZE	Deleted.
XGL_LPAT_COORD_SYS	Deleted.
XGL_SYS_ST_ERROR_FILE_NAME	Deleted.
XGL_3D_CTX_SURF_FRONT_LIGHT_TYPE XGL_3D_CTX_SURF_BACK_LIGHT_TYPE	Deleted.

New Data Structures

Table A-4

Data Structure	Description
Xgl_paint_type	Added new paint type structure for transparent overlay window support.
Xgl_texture_persp_correction	Added enumerated type to support texture map perspective correction.
Xgl_texture_coord_source	Added enumerated type to define the source of the texture coordinates in the primitive's point data.
Xgl_texture_domain	Added enumerated type to define the texture domain.
Xgl_texture_type	Added enumerated type to define the type of texture mapping.
Xgl_texture_general_mipmap_desc	Added new MipMap descriptor structure for the Texture Map object.
Xgl_texture_comp_info	Added data structure to specify how the texture map is blended with the primitive's data.
Xgl_texture_general_desc	Added new texture descriptor structure for the Texture Map object.

Changed Data Structures

Table A-5

Data Structure	Description
Xgl_ctx_new_frame_action	The value XGL_CTX_NEW_FRAME_POINT_TYPE_ACTION has been added to Xgl_ctx_new_frame_action.
Xgl_render_mode	The value XGL_RENDER_NONE has been removed from Xgl_render_mode.
Xgl_texture_boundary	Added new values to support texture mapping.
Xgl_texture_interp_method	Added value to support texture mapping.
Xgl_texture_op	Added new values to support texture mapping.
Xgl_texture_color_comp_info	Added channel information to the color composition method.