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Line Test Descriptions
14
- This chapter describes the Line 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
· gc_line0
-
| Test Types: | RGB, SM |
| Description: | Tries a gcache line with 7 points in one point list, and another in two point lists with 7 points included in each list. |
- Attributes Tested: XGL_GCACHE
- Operators Tested: xgl_object_create
-
-
xgl_object_destroy
xgl_gcache_multipolyline
xgl_context_display_gcache
-
| Output:· gc_line_attr | The first gcached line has three local maxima and two local minima. The second gcached collection of point lists has the previously rendered line plus the same line drawn translated below the previously rendered line by 100. |
| Test Types: | RGB, SM |
| Description: | Checks that validation of attributes during gcache display is done as specified. Checks also that the attributes that are not validated do not persist. |
- Attributes Tested: XGL_3D_CTX_MODEL_CLIP_PLANE_NUM
- Operators Tested: xgl_object_create
-
| Output:· line0 | Two gcached collection of point lists with 7 points in each point list with each line rendered an exact copy of the previous line except the line has been translated below the previous line by 100; and each line containing three local maxima and two local minima. |
| Test Types: | INDEX, SM |
| Description: | Renders a line with a negative slope from 20, 20 to 300, 300 utilizing point type XGL_PT_I2D, and a bounding box of NULL. The color map used is the default, so only two colors, black and white are available. |
- Attributes Tested: XGL_CTX_LINE_COLOR
- Operators Tested: xgl_object_set
-
| Output:· line1 | A negative sloped white line |
| Test Types: | INDEX, SM |
| Description: | Renders two white lines with negative slopes and one white line with a positive slope utilizing point type XGL_PT_I2D. The color map used is the default, so only two colors, black and white are available. |
- Attributes Tested: XGL_CTX_LINE_COLOR
- Operators Tested: xgl_object_set
-
-
xgl_multipolyline
Output: Three white lines with two lines having a negative slope
- and one line having a positive slope. After the rendering of a single white line, the screen is cleared and another white line is drawn.
· line2
-
| Test Types: | INDEX, SM |
| Description: | Renders six white lines with point type XGL_PT_I2D. The first three lines are solids and the last three are dashed pattern lines. The color map used is the default, so only two colors, black and white are available. |
- Attributes Tested: XGL_CTX_LINE_COLOR
-
-
XGL_CTX_LINE_PATTERN
XGL_CTX_LINE_STYLE
XGL_LINE_PATTERNED
Operators Tested: xgl_object_set
xgl_multipolyline
xgl_object_get
Output: A line is rendered and then the screen is cleared. The first
- three lines rendered are solid. The next three lines rendered are dashed.
· line3
-
| Test Types: | INDEX, SM |
| Description: | Tries thin and fat shaded lines utilizing the line attribute XGL_3D_CTX_LINE_COLOR_INTERP. Loops through two settings for line width, 1.0 and 5.0, with seven variations for shading the individual segments for the line. The seven different arrangements for rendering color of the lines are: |
-
- Same color at each end
- Different color at each end
- Reversed colors
- Same colors, first segment
- Different colors, each segment
- Multiple polylines
- Single pixel
- Attributes Tested: XGL_3D_CTX_LINE_COLOR_INTERP
- Operators Tested: xgl_object_set
- Output:.....Lines with arrangements mentioned above appear like:
-
- Red negative sloped line
- Horizontal line red, lime green, yellow, dark blue, purple light blue
- Horizontal line purple, dark blue, yellow, lime green, red
- First segment--red; second segment--red, lime green, yellow, dark blue, purple, light blue
- First segment--red, lime green, yellow, dark blue; second segment--dark blue, purple, light blue, grey
- Two horizontal lines--top: red, lime green, yellow, blue; bottom: dark blue, purple, light blue, grey
- One purple pixel
· line4
-
| Test Types: | INDEX, SM |
| Description: | Checks three cases for the correct management of HLHSR for the z value: (1) the first line is in front, (2) the second line is in front, and (3) both lines have the same z value. Tests loops through six variation of lines and they are: |
-
- Vertical
- Horizontal
- 45 degrees
- Arbitrary slope
- Multi-segmented
- Multipolyline
- Attributes Tested: XGL_3D_CTX_HLHSR_MODE
-
-
XGL_CTX_LINE_COLOR
XGL_CTX_NEW_FRAME_ACTION
XGL_CTX_NEW_FRAME_CLEAR
XGL_CTX_NEW_FRAME_HLHSR_ACTION
XGL_HLHSR_ZBUFFER
Operators Tested: xgl_object_set
xgl_multipolyline
Output: Lines appear as described above with loop 1--all lines
- red; loop 2--all lines green; loop 3--all lines green
· line5
-
| Test Types: | RGB, SM |
| Description: | Same test as line3 except this test is RGB |
- Attributes Tested: XGL_3D_CTX_LINE_COLOR_INTERP
-
-
XGL_CTX_BACKGROUND_COLOR
XGL_CTX_LINE_WIDTH_SCALE_FACTOR
Operators Tested: xgl_object_set
xgl_multipolyline
Output: Line variations as mentioned for line3 with the color
scheme as follows:
· Red negative sloped line
· Horizontal line blue shaded to red
· Horizontal line brown shaded to blue
· Red shaded to orange shaded to yellow shaded to
green shaded to light blue
-
- Two horizontal lines: top--red shaded to green; bottom--green shaded to blue
- One blue pixel
· line6
-
| Test Types: | RGB, SM |
| Description: | Same as line4 except this test is RGB |
- Attributes Tested: XGL_3D_CTX_HLHSR_MODE
-
-
XGL_CTX_LINE_COLOR
XGL_CTX_NEW_FRAME_ACTION
XGL_CTX_NEW_FRAME_CLEAR
XGL_CTX_NEW_FRAME_HLHSR_ACTION
XGL_HLHSR_ZBUFFER
Operators Tested: xgl_object_set
xgl_multipolyline
Output: Lines appear as described in line4 with loop 1--all lines
- brown; loop 2--all lines green; loop 3--all lines green
· line7
-
| Test Types: | RGB, SM |
| Description: | Renders three horizontal green dashed lines and three vertical green dashed lines |
- Attributes Tested: XGL_CTX_LINE_STYLE
-
-
XGL_CTX_LINE_PATTERN
XGL_LINE_SOLID
XGL_LINE_PATTERNED
Operators Tested: xgl_object_set
xgl_multipolyline
Output: Three horizontal green dashed lines and three vertical
green dashed lines
· line8
-
| Test Types: | RGB, SM |
| Description: | Renders light blue solid and dashed pattern horizontal lines |
- Attributes Tested: XGL_CTX_LINE_PATTERN
-
-
XGL_CTX_LINE_STYLE
XGL_CTX_LINE_WIDTH_SCALE_FACTOR
XGL_LINE_PATTERNED
Operators Tested: xgl_object_set
xgl_multipolyline
Output: A light blue solid horizontal line, dashed horizontal light
- blue line, solid light blue line, and finally a wide dashed horizontal light blue line
· line9
-
| Test Types: | RGB, SM |
| Description: | Renders a collection of lines utilizing the same values for x1, y1, x2 but changing y2 through each loop by adding 10 to the previous y2 value. Renders a collection of 50 random horizontal lines with random colors and random widths. Renders a collection of 50 random vertical lines with random colors and random widths. |
- Attributes Tested: XGL_CTX_LINE_STYLE
-
-
XGL_CTX_LINE_WIDTH_SCALE_FACTOR
XGL_LINE_SOLID
Operators Tested: xgl_object_set
xgl_multipolyline
Output: Renders a collection of RGB lines like the spokes of a
- wheel from a horizontal location to practically a 90-degree spoke. Renders a variety of different-colored wide horizontal lines and finally a variety of different-colored vertical horizontal lines.
· line10
-
| Test Types: | CM, RGB |
| Description: | Checks RGB line-pattern balancing. Uses random colors and variable lengths. Checks horizontal and vertical cases. Does token check of wide-patterned lines. |
- Attributes Tested: XGL_CTX_LINE_COLOR
-
-
XGL_CTX_LINE_PATTERN
XGL_CTX_LINE_STYLE
XGL_CTX_LINE_WIDTH_SCALE_FACTOR
-
-
XGL_LINE_PATTERNED
XGL_LINE_SOLID
XGL_LPAT
XGL_LPAT_BALANCED_DASH
XGL_LPAT_BALANCED_SEGMENT
XGL_LPAT_BAL_DASH_0
XGL_LPAT_BAL_DASH_1
XGL_LPAT_COORD_SYS
XGL_LPAT_DATA
XGL_LPAT_DATA_SIZE
XGL_LPAT_DC
XGL_LPAT_OFFSET
XGL_LPAT_STYLE
- Operators Tested: xgl_object_set
-
| Output:· line11 | Two frames of horizontal-patterned balanced lines, with the length of each successive horizontal line increased by 12 followed by two frames of vertical-patterned balanced lines, with each successive vertical line height increased by 12. The correct balancing is indicated by the gaps in each line, which when correct, form a straight undisturbed margin of background color across all the lines rendered in the frame. The final frame is a single wide-patterned line. |
| Test Types: | INDEX, SM |
| Description: | Checks every pixel in a horizontal and simple alternate-patterned dotted line |
- Attributes Tested: XGL_CTX_LINE_ALT_COLOR
- Operators Tested: xgl_object_set
- Output:.....Horizontal alternate dotted line, with the even-colored dots red and the gaps green
· line12
-
| Test Types: | INDEX, SM |
| Description: | Sets the line color to 255. Loops through all of the possible plane mask values, 0-255. Clears the plane mask by setting it to -1. Sets the plane mask to the loop value. Checks for line color for the plane mask value of 255. |
- Attributes Tested: XGL_CTX_LINE_COLOR
-
-
XGL_CTX_PLANE_MASK
Operators Tested: xgl_object_set
xgl_multipolyline
Output: Two hundred fifty five frames of a horizontal line in the
line color for the loop value of 255
· line13
-
| Test Types: | INDEX, CM |
| Description: | Renders a trapezoid in a variety of patterned lines and checks to see that the pattern follows through properly in acute and obtuse angles. Renders a parallelogram in a variety of wide widths and checks to see that the mitered joins are properly rendered. |
- Attributes Tested: XGL_CTX_LINE_COLOR
-
-
XGL_CTX_LINE_PATTERN
XGL_CTX_LINE_STYLE
XGL_CTX_LINE_WIDTH_SCALE_FACTOR
XGL_LINE_PATTERNED
XGL_LINE_SOLID
Operators Tested: xgl_object_set
xgl_multipolyline
Output: Six trapezoids, each located inside the previous one in a
- variety of colors and patterns. Five parallelograms in a variety of widths and colors, each located inside the previous one.
· line14
-
| Test Types: | INDEX, CM |
| Description: | Renders a trapezoid in a variety of wide patterned lines and checks to see that both the pattern, the joins, and the width follow through the acute and obtuse angles properly. |
- Attributes Tested: XGL_CTX_LINE_COLOR
-
-
XGL_CTX_LINE_PATTERN
XGL_CTX_LINE_STYLE
XGL_CTX_LINE_WIDTH_SCALE_FACTOR
XGL_LINE_PATTERNED
XGL_LINE_SOLID
Operators Tested: xgl_object_set
xgl_multipolyline
Output: Five trapezoids, each located inside the previous one in a
variety of colors, patterns, and widths
· line15
-
| Test Types: | INDEX, CM |
| Description: | Renders three spice jars with 3d_flag point type by alternating the settings of edge flags on and off, varying the color, and changing the cap styles through all possibilities. |
- Attributes Tested: XGL_CAP_BUTT
-
-
XGL_CAP_ROUND
XGL_CAP_SQUARE
XGL_CLR_EDGE_FLAG
XGL_CTX_LINE_CAP
XGL_CTX_LINE_COLOR
XGL_CTX_LINE_STYLE
XGL_CTX_LINE_WIDTH_SCALE_FACTOR
XGL_LINE_SOLID
XGL_SET_EDGE_FLAG
Operators Tested: xgl_object_set
xgl_multipolyline
Output: Three spice jars outline each located within each other.
- The outer line color is white, the middle is red, and the inner is green. The butt styles are square, round, and butt.
- The on/off segments are segment, off, two segments, off, two segments, off, and last segment on. A marker indicates the commencement of the butt style.
· line16
-
| Test Types: | INDEX, CM |
| Description: | Renders six spice jars with 3d_flag point type by alternating the settings of edge flags on and off, varying the color, varying the line pattern, and changing the cap styles through all possibilities. |
- Attributes Tested: XGL_CAP_BUTT
- Operators Tested: xgl_object_set
- Output:.....Six spice jars outline each located within each other. The line colors starting from the outward to innermost are white, red, lime green, dark blue, yellow, and light blue. The butt styles are square, round, and butt. The on/off segments are segment, off, two segments, off, two segments, off, and last segment on. The line pattern types from the outward are dotted, dashed, dashed-dotted, dash-dot, dash-dot-dotted, and long dashed.
· line17
-
| Test Types: | INDEX, CM |
| Description: | Renders wide single-segment lines such that they form a spoke around an imaginary center, and checks their variety of cap styles by rendering a marker at the beginning of the cap |
- Attributes Tested: XGL_CAP_BUTT
-
-
XGL_CAP_ROUND
XGL_CAP_SQUARE
XGL_CTX_LINE_CAP
XGL_CTX_LINE_COLOR
XGL_CTX_LINE_WIDTH_SCALE_FACTOR
Operators Tested: xgl_object_set
xgl_multipolyline
xgl_object_get
Output: Fourteen wide single-segment lines. Starting with the
- approximately 45-degree sloped, the white line in the upper-left corner of the raster is white, red, lime green, dark blue, yellow, light blue, purple, white, red, lime green, dark blue, yellow, light blue, and purple. Also starting with this white line, the cap styles are square, round, and butt and then repeat through the lines rendered.
· line18
-
| Test Types: | INDEX, CM |
| Description: | Renders wide single-segment patterned lines so that they form a spoke around an imaginary center, and checks their variety of cap styles by rendering a marker at the beginning of the cap |
- Attributes Tested: XGL_CAP_BUTT
-
-
XGL_CTX_LINE_STYLE
XGL_CTX_LINE_WIDTH_SCALE_FACTOR
XGL_LINE_PATTERNED
Operators Tested: xgl_object_set
xgl_multipolyline
Output: Fourteen wide single-segment lines. Starting with the
- approximately 45-degree sloped, the white line in the upper-left corner of the raster is white, red, lime green, dark blue, yellow, light blue, purple, white, red, lime green, dark blue, yellow, light blue, and purple. Also starting with this white line, the cap styles are square and round and then repeat through the lines rendered. The pattern types repeated through this arrangement are dotted, dashed, dashed-dotted, dash-dot, dash-dot-dotted, and long dashed.
· line19
-
| Test Types: | INDEX, CM |
| Description: | Renders three spice jars with 2d_flag point type alternating the settings of edge flags on and off, varying the color and the width, and changing the cap styles through all possibilities |
- Attributes Tested: XGL_CAP_BUTT
-
-
XGL_CAP_ROUND
XGL_CAP_SQUARE
XGL_CLR_EDGE_FLAG
XGL_CTX_LINE_CAP
XGL_CTX_LINE_COLOR
XGL_CTX_LINE_STYLE
XGL_CTX_LINE_WIDTH_SCALE_FACTOR
XGL_LINE_SOLID
XGL_SET_EDGE_FLAG
Operators Tested: xgl_object_set
xgl_multipolyline
Output: Three spice jars outline each located within each other.
- The outer line color is white, the middle is red, and the inner is green. The butt styles are square, round, and butt.
- The on/off segments are segment, off, two segments, off, two segments, off, and last segment on. A marker indicates the commencement of the butt style.
· line20
-
| Test Types: | INDEX, CM |
| Description: | Renders two outlines of geckos: one with i2d_flag point type alternating the settings of edge flags on and off with a round cap style, a width of 5.0, and a red line color. The other outline has all edges on, beveled joins, green line color, a width of 7.0, and butt cap. Markers are displayed at each of the vertexes to easily check the joins. |
- Attributes Tested: XGL_CAP_BUTT
- Operators Tested: xgl_object_set
-
| Output:· line21 | Two outlines of geckos, one with red line color and alternating on/off line segments, and the other with a blunt join, all segments on and a green line color |
| Test Types: | INDEX, CM |
| Description: | Sets the join miter limit so low that we expect beveled joins and observe the joins for acute and obtuse angles using flag_pt_2d point type |
- Attributes Tested: XGL_CTX_LINE_COLOR
-
-
XGL_CTX_LINE_JOIN
XGL_CTX_LINE_MITER_LIMIT
-
-
XGL_CTX_LINE_STYLE
XGL_CTX_LINE_WIDTH_SCALE_FACTOR
XGL_JOIN_BEVEL
XGL_JOIN_MITER
XGL_LINE_SOLID
XGL_SET_EDGE_FLAG
Operators Tested: xgl_object_set
xgl_multipolyline
Output: The raster is covered with two wide segmented lines in a
- variety of colors with acute and obtuse angles. Markers indicate the position of the vertexes.
· line22
-
| Test Types: | INDEX, CM |
| Description: | Extremely acute angles formed by a two-segmented line with an extremely high value for the miter limit to force knife edges. Widths are set alternating between 5.0 and 7.0 and the point type used is flag_2d. |
- Attributes Tested: XGL_CTX_LINE_COLOR
-
-
XGL_CTX_LINE_JOIN
XGL_CTX_LINE_MITER_LIMIT
XGL_CTX_LINE_STYLE
XGL_CTX_LINE_WIDTH_SCALE_FACTOR
XGL_JOIN_MITER
XGL_LINE_SOLID
XGL_SET_EDGE_FLAG
Operators Tested: xgl_object_set
xgl_multipolyline
Output: The raster is covered with v-shaped wide lines with knife
edges in a variety of colors.
· line23
-
| Test Types: | INDEX, CM |
| Description: | Renders a simple white index horizontal line inside a window raster whose x, y, and z values range from 0 to 1 via the setting for the window bounds under a virtual device mapping system of ASPECT |
- Attributes Tested: XGL_CTX_VDC_MAP
-
-
XGL_CTX_VDC_WINDOW
XGL_VDC_MAP_ASPECT
Operators Tested: xgl_object_set
xgl_multipolyline
Output: A simple white horizontal line
· line24
-
| Test Types: | INDEX, CM |
| Description: | Tests line attributes for line width and line style inside a window raster whose x, y, and z values range from 0 to 1 via the setting for the window bounds and an orientation such that y is up and z is nearly below a virtual device mapping system of ASPECT |
- Attributes Tested: XGL_CTX_BACKGROUND_COLOR
-
-
XGL_CTX_LINE_COLOR
XGL_CTX_LINE_PATTERN
XGL_CTX_LINE_STYLE
XGL_CTX_LINE_WIDTH_SCALE_FACTOR
XGL_CTX_SURF_FRONT_COLOR
XGL_CTX_VDC_MAP
XGL_VDC_MAP_ASPECT
XGL_CTX_VDC_ORIENTATION
XGL_Y_UP_Z_TOWARD
XGL_CTX_VDC_WINDOW
XGL_LINE_PATTERNED
XGL_LINE_SOLID
Operators Tested: xgl_object_set
xgl_multipolyline
Output: A variety of patterned and colored horizontal lines
- forming two columns in the window raster
· line25
-
| Test Types: | INDEX, CM |
| Description: | Pushes attributes, renders, pushes new attributes, renders, pops attributes, expects the just set attributes, pops again and expects the originally set attributes. Uses this scheme to verify the push/pop scheme for line style, line width, and line color. |
- Attributes Tested: XGL_CTX_BACKGROUND_COLOR
-
-
XGL_CTX_LINE_COLOR
XGL_CTX_LINE_PATTERN
XGL_CTX_LINE_STYLE
XGL_CTX_LINE_WIDTH_SCALE_FACTOR
XGL_CTX_VDC_MAP
XGL_VDC_MAP_ASPECT
XGL_CTX_VDC_ORIENTATION
XGL_Y_UP_Z_TOWARD
XGL_CTX_VDC_WINDOW
XGL_LINE_PATTERNED
XGL_LINE_SOLID
Operators Tested: xgl_object_set
xgl_multipolyline
xgl_context_push
xgl_context_pop
Output: A variety of patterned and colored horizontal lines
- forming two columns in the window raster
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