Arc Test Descriptions

6

This chapter describes the Arc test programs. The following is defined for each test program:

• Name of the test program
• Test types (See the section, "Denizen Test Types" on page 2 for the different test types.)
• Description of the test program
• Attributes tested by the program
• Operators tested by the program
• Output from the test program

· arc0

Test Types:	INDEX, SM
Description:	Checks five points on an indexed 2D arc

Attributes Tested: See Table 6-1, Column A at the end of this chapter.

Operators Tested: xgl_object_set

                    xgl_multiarc
Output:             Indexed 2D quarter circle.

· arc1

Test Types:	INDEX, SM
Description:	Checks five points on four indexed 2D arcs

Attributes Tested: XGL_ARC_CHORD and Table 6-1, Column A at the end of this chapter

Operators Tested: xgl_object_set

                    xgl_multiarc
Output:             Four indexed 2D arcs. Arcs are quarter, half, three-quarter,
                    and full circle.

· arc2

Test Types:	INDEX, SM
Description:	Checks for the presence of edge color at five points for each of four indexed 2D arcs

Attributes Tested: XGL_ARC_CHORD

                    XGL_CTX_EDGE_COLOR
                    and Table 6-1, Column A at the end of this chapter
Operators Tested:   xgl_object_set
                    xgl_multiarc
Output:             Several indexed 2D arcs with edges both on and off. Arcs

are quarter, half, three-quarter, and full circle.

· arc3

Test Types:	INDEX, SM
Description:	Checks for the correct pattern and the presence of edge colors in several indexed 2D arcs with various combinations of edges and patterns.

Attributes Tested: See Table 6-3, Column C at the end of this chapter.

Operators Tested: xgl_object_set

Output:.....Several indexed 2D arcs with edges both on and off, and with three different patterns. Arcs are half a full circle.

· arc4

Test Types:	INDEX, SM
Description:	Checks a few points of each of several arcs for the correct arc fill style

Attributes Tested: See Table 6-2, Column A at the end of this chapter.

Operators Tested: xgl_object_set xgl_multiarc xgl_object_get

Output:· arc5	An identical arc rendered three times in the lower right portion of the window raster, twice with one-quarter arc representing the fourth quadrant of a circle, and a final time representing the lower half of a circle. Arc fill styles are sector (solid) for the first arc and open (edges only) for the last two arcs.
Test Types:	INDEX, SM
Description:	Checks 17 points on each of several arcs for correct placement

Attributes Tested: XGL_CTX_SURF_EDGE_FLAG and Table 6-1, Column B at the end of this chapter

Operators Tested: xgl_object_set

Output:· arc6	Several indexed 2D arcs with different data types (I2D,F2D,B2D), different sizes (1/4, 1/2, 3/4, full), and all sector (solid) fill style
Test Types:	RGB, SM
Description:	Checks five points on each of several different colored arcs. The colors are all colors in the color cube for 8-bit raster, and 256 random colors for other rasters.

Attributes Tested: XGL_ARC_CHORD

and Table 6-1, Column A at the end of this chapter

Operators Tested: xgl_object_set xgl_multiarc xgl_object_get

Output:· arc7	Several quarter-circle RGB 2D arcs of various colors
Test Types:	RGB, SM
Description:	RGB version of arc1

Attributes Tested: XGL_ARC_CHORD and Table 6-1, Column A at the end of this chapter

Operators Tested: xgl_object_set

Output:· arc8	Four RGB 2D arcs. Arcs are one-quarter, one-half, and three-quarter circle.
Test Types:	RGB, SM
Description:	RGB version of arc2

Attributes Tested: XGL_ARC_CHORD XGL_CTX_EDGE_COLOR and Table 6-1, Column A at the end of this chapter

Operators Tested: xgl_object_set

Output:· arc9	Several RGB 2D arcs with edges both on and off. Arcs are one-quarter, one-half, and three-quarter circle.
Test Types:	RGB, SM
Description:	RGB version of arc3

Attributes Tested: See Table 6-3, Column C at the end of this chapter.

Operators Tested: xgl_object_set

Output:.....Several RGB 2D arcs with edges both on and off, and with three different patterns. Arcs are half circle.

· arc10

Test Types:	RGB, SM
Description:	Like arc6, but checks for a 9x9 solid square inside the arc instead of scattered points

Attributes Tested: XGL_ARC_SECTOR

and Table 6-1, Column A at the end of this chapter

Operators Tested: xgl_object_set

Output:· arc11	Several quarter-circle RGB 2D arcs of various colors
Test Types:	RGB, SM
Description:	RGB version of arc4

Attributes Tested: XGL_CTX_LINE_COLOR and Table 6-2, Column A at the end of this chapter

Operators Tested: xgl_object_set

                    xgl_multiarc
                    xgl_object_get
Output:             An identical arc rendered three times in the lower right

portion of the window raster, twice with one-quarter arc representing the fourth quadrant of a circle, and a final time representing the lower half of a circle. Arc fill styles are sector (solid) for the first arc and open (edges only) for the last two arcs.

· arc12

Test Types:	RGB, SM
Description:	RGB version of arc5

Attributes Tested: XGL_CTX_SURF_EDGE_FLAG and Table 6-1, Column B at the end of this chapter

Operators Tested: xgl_object_set

Output:· arc13	Several RGB 2D arcs with different data types (I2D,F2D,B2D), different sizes (one quarter, one half, three quarter, full), and all sector (solid) fill style
Test Types:	INDEX, SM
Description:	3D version of arc0

Attributes Tested: XGL_ARC_CHORD and Table 6-1, Column A at the end of this chapter

Operators Tested: xgl_object_set

                    xgl_multiarc
Output:             Indexed 3D quarter circle

· arc14

Test Types:	INDEX, SM
Description:	3D version of arc1

Attributes Tested: XGL_ARC_CHORD and Table 6-1, Column A at the end of this chapter

Operators Tested: xgl_object_set

                    xgl_multiarc
Output:             Four indexed 3D arcs. Arcs are one-quarter, one-half, and
                    three-quarter circle.

· arc15

Test Types:	INDEX, SM
Description:	3D version of arc2

Attributes Tested: XGL_ARC_CHORD

                    XGL_CTX_EDGE_COLOR
                    and Table 6-1, Column A at the end of this chapter
Operators Tested:   xgl_object_set
                    xgl_multiarc
Output:             Several indexed 3D arcs with edges both on and off. Arcs

are one-quarter, one-half, and three-quarter circle.

· arc16

Test Types:	INDEX, SM
Description:	3D version of arc3

Attributes Tested: See Table 6-3, Column C at the end of this chapter.

Operators Tested: xgl_object_set

Output:· arc17	Several indexed 3D arcs with edges both on and off, and with three different patterns. Arcs are half circle.
Test Types:	INDEX, SM
Description:	3D version of arc4

Attributes Tested: See Table 6-2, Column A at the end of this chapter.

Operators Tested: xgl_object_set

                    xgl_multiarc
                    xgl_object_get
Output:             An identical arc rendered three times in the lower right

portion of the window raster, twice with one-quarter arc representing the fourth quadrant of a circle, and a final time representing the lower half of a circle. Arc fill styles are sector (solid) for the first arc and open (edges only) for the last two arcs.

· arc18

Test Types:	RGB, SM
Description:	3D version of arc6

Attributes Tested: XGL_ARC_CHORD XGL_RAS_DEPTH and Table 6-1, Column A at the end of this chapter

Operators Tested: xgl_object_set

Output:.....Several quarter-circle RGB 3D arcs of various colors

· arc19

Test Types:	RGB, SM
Description:	3D version of arc7

Attributes Tested: XGL_ARC_CHORD and Table 6-1, Column A at the end of this chapter

Operators Tested: xgl_object_set

                    xgl_multiarc
Output:             Four RGB 3D arcs. Arcs are one-quarter, one-half, and
                    three-quarter circle.

· arc20

Test Types:	RGB, SM
Description:	3D version of arc8

Attributes Tested: XGL_ARC_CHORD XGL_CTX_EDGE_COLOR and Table 6-1, Column A at the end of this chapter

Operators Tested: xgl_object_set

Output:· arc21	Several RGB 3D arcs with edges both on and off. Arcs are one-quarter, one-half, and three-quarter circle.
Test Types:	RGB, SM
Description:	3D version of arc9

Attributes Tested: See Table 6-3, Column C at the end of this chapter.

Operators Tested: xgl_object_set

                    xgl_multiarc
                    xgl_object_get
Output:             Several RGB 2D arcs with edges both on and off, and with

three different patterns. Arcs are half circle.

· arc22

Test Types:	RGB, SM
Description:	3D version of arc10

Attributes Tested: XGL_ARC_SECTOR

                    XGL_RAS_DEPTH
                    and Table 6-1, Column A at the end of this chapter
Operators Tested:   xgl_object_set
                    xgl_multiarc
                    xgl_object_get
Output:             Several quarter-circle RGB 2D arcs of various colors

· arc23

Test Types:	RGB, SM
Description:	3D version of arc11

Attributes Tested: XGL_CTX_LINE_COLOR and Table 6-2, Column A at the end of this chapter.

Operators Tested: xgl_object_set

Output:· arc24	An identical arc rendered three times in the lower right portion of the window raster, twice with one-quarter arc representing the fourth quadrant of a circle, and a final time representing the lower half of a circle. Arc fill styles are sector (solid) for the first arc and open (edges only) for the last two arcs.
Test Types:	RGB, SM
Description:	Checks 17 points on each of three arcs drawn simultaneously with nonzero starting angles

Attributes Tested: See Table 6-1, Column B at the end of this chapter.

Operators Tested: xgl_object_set

Output:.....Three RGB 2D arcs with nonzero starting angle drawn simultaneously.

· arc25

Test Types:	RGB, SM
Description:	Tests the three face-culling modes by drawing both front and back facing arcs and checking for their presence

Attributes Tested: XGL_3D_CTX_SURF_FACE_CULL

and Table 6-2, Column B at the end of this chapter

Operators Tested: xgl_object_set

Output:· arc26	Several front-facing and back-facing arcs using the three face-culling modes. Depending on the mode, some arcs may not appear.
Test Types:	RGB, SM
Description:	Tests the face-distinguish and normal-flip attributes by drawing arcs using all four combinations of the above two attributes

Attributes Tested: XGL_3D_CTX_SURF_NORMAL_FLIP and Table 6-2, Column B at the end of this chapter

Operators Tested: xgl_object_set

                    xgl_multiarc
                    xgl_object_get
Output:             Several arcs with various face distinguish and normal flip
                    attributes

· arc27

Test Types:	RGB, SM
Description:	Draws arcs with different edge styles and checks various areas of the arcs to make sure they're drawn correctly

Attributes Tested: XGL_CTX_BACKGROUND_COLOR

XGL_CTX_EDGE_ALT_COLOR
XGL_CTX_EDGE_COLOR
XGL_CTX_EDGE_PATTERN
XGL_CTX_EDGE_STYLE

                    XGL_CTX_EDGE_WIDTH_SCALE_FACTOR
                    XGL_CTX_NURBS_CURVE_APPROX
                    XGL_CTX_NURBS_CURVE_APPROX_VAL
                    XGL_CTX_SURF_EDGE_FLAG
                    XGL_CTX_SURF_FRONT_COLOR
                    XGL_CURVE_METRIC_VDC
                    XGL_LINE_ALT_PATTERNED
Operators Tested:   xgl_object_set
                    xgl_multiarc
                    xgl_object_get
Output:             Arc with edge flag off, arc with wide edge, and arc with
                    thin alt-patterned edge

· arc28

Test Types:	RGB, SM
Description:	Arc HLHSR test: Draws two otherwise identical arcs of usually different depths and checks that only the one in the front shows up; tries many cases of different z values

Attributes Tested: See Table 6-2, Column C at the end of this chapter.

Operators Tested: xgl_object_set

                    xgl_multiarc
Output:             A succession of arcs. If successful, only one arc displays at
                    a time.

· arc29

Test Types:	RGB, SM
Description:	Arc HLHSR test: Sets Z-buffer to a certain value and draws an arc of a different z value and checks for the presence of the arc; repeats with different z values for the Z-buffer and arc

Attributes Tested: XGL_3D_CTX_HLHSR_DATA

                    XGL_CTX_BACKGROUND_COLOR
                    and Table 6-2, Column C at the end of this chapter
Operators Tested:   xgl_object_set
                    xgl_multiarc
Output:             A succession of arcs. If successful, each arc displays.

· arc30

Test Types:	RGB, SM
Description:	Checks various areas on each of several RGB 2D arcs drawn with hollow and empty fill styles and wide and patterned edges

Attributes Tested: XGL_CTX_BACKGROUND_COLOR

                    XGL_CTX_EDGE_COLOR
                    XGL_SURF_FILL_EMPTY
                    XGL_SURF_FILL_HOLLOW
                    and Table 6-1, Column A at the end of this chapter
Operators Tested:   xgl_object_set
                    xgl_multiarc
                    xgl_object_get
Output:             Several RGB 2D quarter-circle arcs with hollow and empty
                    fill styles

· arc31

Test Types:	RGB, SM
Description:	RGB arc linear depth-cueing: Varies depth-cueing color, arc color, arc depth, and arc direction. Checks various points on the arcs for correct color.

Attributes Tested: XGL_3D_CTX_DEPTH_CUE_COLOR and Table 6-3, Column B at the end of this chapter

Operators Tested: xgl_object_set

                    xgl_multiarc
                    xgl_object_get
Output:             Several arcs with varying depth-cue attribute values and

colors with arcs starting from 45 degrees and ending at 360 degrees

· arc32

Test Types:	RGB, SM
Description:	Opaque version of arc2

Attributes Tested: XGL_SURF_FILL_OPAQUE_STIPPLE

and Table 6-3, Column C at the end of this chapter

Operators Tested: xgl_object_set

                    xgl_multiarc
                    xgl_object_get
Output:             Several RGB 3D half-circle arcs with edges both on and

off, and with three different stipple patterns

· arc33

Test Types:	RGB, SM
Description:	Like arc21, but uses back facets instead of front facets

Attributes Tested: XGL_3D_CTX_SURF_BACK_FPAT

                    XGL_ARC_CHORD
                    XGL_CTX_ARC_FILL_STYLE
                    XGL_SURF_FILL_STIPPLE
                    and Table 6-3, Column A at the end of this chapter
Operators Tested:   xgl_object_set
                    xgl_multiarc
                    xgl_object_get
Output:             Several RGB 2D half-circle arcs with edges both on and
                    off, and with three different patterns

· arc34

Test Types:	RGB, SM
Description:	3D version of arc30

Attributes Tested: XGL_CTX_BACKGROUND_COLOR XGL_CTX_EDGE_COLOR XGL_SURF_FILL_EMPTY XGL_SURF_FILL_HOLLOW and Table 6-1, Column A at the end of this chapter

Operators Tested: xgl_object_set

Output:.....Several RGB 3D 90-degree arcs with hollow and empty fill styles

· arc35

Test Types:	RGB, SM
Description:	Like arc34, but uses back facets instead of front facets

Attributes Tested: XGL_SURF_FILL_EMPTY

                    XGL_SURF_FILL_HOLLOW
                    and Table 6-3, Column A at the end of this chapter
Operators Tested:   xgl_object_set
                    xgl_multiarc
                    xgl_object_get
Output:             Several RGB 3D 90-degree arcs with hollow and empty fill
                    styles

· arc36

Test Types:	RGB, SM
Description:	Opaque version of arc33

Attributes Tested: XGL_ARC_CHORD

                    XGL_SURF_FILL_SOLID
                    XGL_SURF_FILL_OPAQUE_STIPPLE
                    XGL_3D_CTX_SURF_BACK_FPAT
                    and Table 6-3, Column A at the end of this chapter
Operators Tested:   xgl_object_set
                    xgl_multiarc
                    xgl_object_get
Output:             Several RGB 2D half-circle arcs with edges both on and
                    off, and with three different patterns

· arc37

Test Types:	INDEX, SM
Description:	Indexed linear depth-cued arcs

Attributes Tested: See Table 6-3, Column B at the end of this chapter.

Operators Tested: xgl_object_set

                    xgl_multiarc
                    xgl_object_get
Output:             Several indexed 3D arcs starting from 45 degrees and
                    ending at 360 degrees

· arc38

Test Types:	RGB, SM
Description:	Checks various areas of each of several open 2D RGB arcs

Attributes Tested: XGL_ARC_OPEN

                    XGL_CTX_ARC_FILL_STYLE
                    XGL_CTX_BACKGROUND_COLOR
                    XGL_CTX_LINE_ALT_COLOR
                    XGL_CTX_LINE_COLOR
                    XGL_CTX_LINE_PATTERN
                    XGL_CTX_LINE_STYLE
                    XGL_CTX_LINE_WIDTH_SCALE_FACTOR
                    XGL_CTX_NURBS_CURVE_APPROX
                    XGL_CTX_NURBS_CURVE_APPROX_VAL
                    XGL_CURVE_METRIC_VDC
                    XGL_LINE_ALT_PATTERNED
                    XGL_LINE_PATTERNED
Operators Tested:   xgl_object_set
                    xgl_multiarc
                    xgl_object_get
Output:             Several open 2D half-circle RGB arcs. Arcs are wide arc,
                    patterned arc, and alt-patterned arc.

· arc39

Test Types:	RGB, SM
Description:	Checks the color of 400 points in or near each of several arcs with 8- or 24-bit pattern fill style

Attributes Tested: See Table 6-1, Column C at the end of this chapter.

Operators Tested: xgl_object_create

Output:.....Several quarter-circle arcs with different pattern fill styles

· arc40

Test Types:	RGB, SM
Description:	3D version of arc39

Attributes Tested: XGL_CTX_NURBS_CURVE_APPROX

                    XGL_CTX_NURBS_CURVE_APPROX_VAL
                    XGL_CURVE_METRIC_WC
                    and Table 6-1, Column C at the end of this chapter
Operators Tested:   xgl_object_create
                    xgl_object_get
                    xgl_object_set
                    xgl_multiarc
                    xgl_context_get_pixel
                    xgl_context_set_pixel
Output:             Several quarter-circle arcs with different pattern fill styles

· arc41

Test Types:	RGB, SM
Description:	Backface version of arc40

Attributes Tested: XGL_3D_CTX_SURF_BACK_FILL_STYLE

                    XGL_MEM_RAS
                    XGL_3D_CTX_SURF_BACK_FPAT
                    XGL_3D_CTX_SURF_FACE_DISTINGUISH
                    XGL_CTX_BACKGROUND_COLOR
                    XGL_CTX_NURBS_CURVE_APPROX
                    XGL_CTX_NURBS_CURVE_APPROX_VAL
                    XGL_CURVE_METRIC_WC
                    XGL_RAS_DEPTH
                    XGL_RAS_HEIGHT
                    XGL_RAS_WIDTH
                    XGL_SURF_FILL_PATTERN
Operators Tested:   xgl_object_create
                    xgl_object_get
                    xgl_object_set
                    xgl_multiarc
                    xgl_context_get_pixel
                    xgl_context_set_pixel
Output:             Several quarter-circle arcs with different pattern fill styles

· arc_annot_af3d_chord

Test Types:	INDEX, SM
Description:	Checks outline of annotation f3d arc list composed of four arcs using chord fill style

Attributes Tested: XGL_CTX_ARC_FILL_STYLE

Operators Tested: xgl_object_set

Output:· arc_annot_af3d_nonid_trans	Four arcs, two to a row, (1) arc starts at 60 and ends at 315 degrees, (2) arc starts at -225 and ends at 315 degrees, (3) arc starts at 45 and ends at -90 degrees and (4) arc starts at -90 and ends at 90 degrees.
Test Types:	INDEX, SM
Description:	Check outline of annotation f3d arc list composed of four open arcs after a translation leaving the expected arc at 100 coordinates down (default VDC Orientation: XGL_Y_DOWN_Z_AWAY) from the original expected y value.

Attributes Tested: XGL_CTX_ARC_FILL_STYLE

                    XGL_ARC_CHORD
                    XGL_CTX_NURBS_CURVE_APPROX_VAL
                    XGL_ARC_OPEN
                    XGL_CTX_GLOBAL_MODEL_TRANS
Operators Tested:   xgl_object_set
                    xgl_object_get
                    xgl_transform_translate
                    xgl_multiarc
                    xgl_transform_identity
Output:             Four arcs, two to a row, (1) arc starts at 60 and ends at 315

degrees, (2) arc starts at -225 and ends at 315 degrees, (3) arc starts at 45 and ends at -90 degrees, and (4) arc starts at -90 and ends at 90 degrees.

· arc_annot_af3d_open

Test Types:	INDEX, SM
Description:	Checks outline of annotation f3d arc list composed of four open arcs

Attributes Tested: XGL_CTX_ARC_FILL_STYLE

Operators Tested: xgl_object_set

Output:· arc_annot_af3d_sector	Four arcs, two to a row, (1) arc starts at 60 and ends at 315 degrees, (2) arc starts at -225 and ends at 315 degrees, (3) arc starts at 45 and ends at -90 degrees, and (4) arc starts at -90 and ends at 90 degrees.
Test Types:	INDEX, SM
Description:	Checks outline of annotation f3d arc list composed of four arcs using sector fill style

Attributes Tested: XGL_CTX_ARC_FILL_STYLE

Operators Tested: xgl_object_set

Output:.....Four arcs, 2 to a row, (1) arc starts at 60 and ends at 315 degrees, (2) arc starts at -225 and ends at 315 degrees, (3) arc starts at 45 and ends at -90 degrees, and (4) arc starts at -90 and ends at 90 degrees.

Table 6-1

Column A	Column B	Column C
XGL_CTX_ARC_FILL_STYLE	XGL_CTX_BACKGROUND_COLOR	XGL_CTX_BACKGROUND_COLOR
XGL_CTX_NURBS_CURVE_APPROX	XGL_CTX_NURBS_CURVE_APPROX	XGL_CTX_SURF_FPAT
XGL_CTX_NURBS_CURVE_APPROX _VAL	XGL_CTX_NURBS_CURVE_APPROX _VAL	XGL_CTX_SURF_FRONT_FILL_ STYLE
XGL_CTX_SURF_EDGE_FLAG	XGL_CTX_SURF_FRONT_COLOR	XGL_MEM_RAS
XGL_CTX_SURF_FRONT_COLOR	XGL_CURVE_METRIC_VDC	XGL_RAS_DEPTH
XGL_CURVE_METRIC_VDC		XGL_RAS_HEIGHT XGL_RAS_WIDTH XGL_SURF_FILL_PATTERN

Table 6-2

Column A	Column B	Column C
XGL_ARC_OPEN	XGL_3D_CTX_SURF_BACK_COLOR	XGL_3D_CTX_HLHSR_MODE
XGL_ARC_SECTOR	XGL_3D_CTX_SURF_FACE_ DISTINGUISH	XGL_CTX_NEW_FRAME_ACTION
XGL_CTX_ARC_FILL_STYLE	XGL_CURVE_METRIC_VDC	XGL_CTX_NEW_FRAME_CLEAR
XGL_CTX_BACKGROUND_COLOR	XGL_ARC_SECTOR	XGL_CTX_NEW_FRAME_HLHSR_ ACTION
XGL_CTX_NURBS_CURVE_APPROX	XGL_CTX_ARC_FILL_STYLE	XGL_CTX_NURBS_CURVE_APPROX
XGL_CTX_NURBS_CURVE_APPROX _VAL	XGL_CTX_BACKGROUND_COLOR	XGL_CTX_NURBS_CURVE_APPROX _VAL
XGL_CTX_SURF_EDGE_FLAG	XGL_CTX_NURBS_CURVE_APPROX	XGL_CTX_SURF_FRONT_COLOR
XGL_CTX_SURF_FRONT_COLOR	XGL_CTX_NURBS_CURVE_APPROX _VAL	XGL_CURVE_METRIC_VDC
XGL_CURVE_METRIC_VDC	XGL_CTX_SURF_FRONT_COLOR	XGL_HLHSR_Z_BUFFER

Table 6-3

Column A	Column B	Column C
XGL_3D_CTX_SURF_BACK_COLR	XGL_DEPTH_CUE_LINEAR	XGL_ARC_CHORD
XGL_3D_CTX_SURF_BACK_FILL_ STYLE	XGL_3D_CTX_DEPTH_CUE_MODE	XGL_CTX_ARC_FILL_STYLE
XGL_3D_CTX_SURF_FACE_ DISTINGUISH	XGL_CTX_NURBS_CURVE_APPROX	XGL_CTX_BACKGROUND_COLOR
XGL_CTX_BACKGROUND_COLOR	XGL_CTX_NURBS_CURVE_APPROX _VAL	XGL_CTX_EDGE_COLOR
XGL_CTX_EDGE_COLOR	XGL_CTX_SURF_FRONT_COLOR	XGL_CTX_NURBS_CURVE_APPROX
XGL_CTX_NURBS_CURVE_APPROX	XGL_CTX_VDC_MAP	XGL_CTX_NURBS_CURVE_APPROX _VAL
XGL_CTX_NURBS_CURVE_APPROX _VAL	XGL_CTX_VDC_WINDOW	XGL_CTX_SURF_EDGE_FLAG
XGL_CTX_SURF_EDGE_FLAG	XGL_CURVE_METRIC_VDC	XGL_CTX_SURF_FPAT
XGL_CURVE_METRIC_VDC	XGL_RAS_HEIGHT	XGL_CTX_SURF_FPAT_POSITION
	XGL_RAS_WIDTH	XGL_CTX_SURF_FRONT_COLOR
	XGL_VDC_MAP_ASPECT	XGL_CTX_SURF_FRONT_FILL_ STYLE XGL_CURVE_METRIC_VDC XGL_SURF_FILL_STIPPLE