1testaccel(6) Svgalib User Manual testaccel(6)
2
6 testaccel - test the old style blitter functions and vga_ext_set()
7
9 testaccel [ -nowait ] [ { all | videomodes... } ]
10
13 Program to test the old blitter functions in a screen mode. Checks the
14 8-bit wide color lookup tables on Mach32's with type 2 DACs as well.
15 [I think '6bpp' and '8bpp' are silly names for the 8-bit LUT thing --
16 bpp is bits per pixel, in the framebuffer - HH :-)]
17 After each test it waits for a key press except when -nowait is given.
19 You can specify names of modes to test on the command line or specify
21 all to loop over all svgalib modes.
22 The program will run on any card, however, most of the tests can only
24 be performed on a Mach32.
25 The subtest are in turn:
27 1 - For each 256 color mode the program sees if it is possible to
30 enable a special mode with 8 bits per color in the RGB lookup
31 table. If so, for example 256 different shades of blue can be
32 implemented. The program displays as much blue shades as possi‐
33 ble in a shade from dark (left) to bright (right) and some text
34 in an opposite direction on top of it. In case 56 different
35 shades are supported, the screen is divided and shows a rough 64
36 shades scale (ordinary vga) on top and the smooth shade below.
37 Right now 256 different shades are only possible on a Mach32
38 with RAMDAC of type 2. For modes with few pixels only, the pro‐
39 gram might fail to print the text properly and will 'wrap' it
40 around the screen edges.
41 2 - Draws a bouncing 'linux' logo stopping after a fixed amount of 1
43 pixel steps. Uses vga_bitblt(3) on the image plus a one pixel
44 outline in border color to move the pixel around the screen.
45 The Mach32 is very fast in this discipline.
46 3 - Draws filled rectangles using vga_fillblt(3). At first a series
48 of larger to smaller centered rectangles is drawn to fill the
49 screen. For 256 or less color modes these will use a sequence
50 of 256 random colors. For 32K or more color modes it will use
51 colors 0 up too, however, you'll usually just see a repeating
52 series of blues (limitations of monitor/human eye, the blue's
53 differ not enough for the eye to see). Then a bunch of random
54 boxes in random places is drawn overwriting each other. The
55 Mach32 is very fast in this discipline.
56 4 - Draws small fish bitmaps and then larger linux logos in random
58 positions using vga_imageblt(3). They just overlap each other
59 The Mach32 is poor in this discipline. If you have a linear
60 frame buffer enabled, it is used instead to perform this func‐
61 tion (even if the program does not use a linear frame buffer
62 otherwise). Usually this is twice as fast for Mach32.
63 5 - Use vga_hlinelistblt(3) o do some simple polygon fills: squares,
65 circles, diamonds of random sizes, positions and colors. Again,
66 the Mach32 is very fast in this discipline, but somehow slowed
67 down by the imperfect prototype of this function. Again, the
68 polygons just overlap each other.
69 The resp. tests will only be performed where supported by the
71 hardware. For Mach32 this means only SVGA 256, 32K, 64K color
72 modes. The linear frame buffer emulated vga_imageblt(3) works
73 for all SVGA modes though.
74 The program prints the number of pixels drawn and the time required
76 plus the resulting rate of pixels per second. For Mach32 the rate
77 depends on the amount of screen accesses (2 per pixel move for vga_bit‐
78 blt(3), 1 per pixel move for vga_fillblt(3) and vga_hlinelistblt(3);
79 also twice bytes are affected for 32K, 64K color modes). On a non VRAM
80 card you'll also note the effect of the memory access caused by the
81 generation of the video frames (more colors/rez/sync rates => less
82 speed). Also, higher modes draw more pixels per call, thus less call
83 and setup overhead.
84 Here are the rates for my card on an almost idle 486 EISA system which
86 should be fairly optimal (2MB VRAM EISA Mach32) except maybe the linear
87 frame buffer emulated imageblt which might be faster on PCI card:
88 Testing mode 1: G320x200x16...
90 Dacwidth test not applicable.
91 Testing mode 2: G640x200x16...
92 Dacwidth test not applicable.
93 Testing mode 3: G640x350x16...
94 Dacwidth test not applicable.
95 Testing mode 4: G640x480x16...
96 Dacwidth test not applicable.
97 Testing mode 5: G320x200x256...
98 Warning: Resolution too small, displayed text is
99 probably scrambled.
100 Has support for CLUT width 8 bit
102 Testing mode 6: G320x240x256...
103 Dacwidth test not applicable.
104 Testing mode 7: G320x400x256...
105 Dacwidth test not applicable.
106 Testing mode 8: G360x480x256...
107 Dacwidth test not applicable.
108 Testing mode 9: G640x480x2...
109 Dacwidth test not applicable.
110 Testing mode 10: G640x480x256...
111 Has support for CLUT width 8 bit
112 Has BitBlt: 176610000 Pixels in 6.49 seconds -> 27.21 Megapels
113 Has FillBlt: 217884171 Pixels in 4.55 seconds -> 47.89 Megapels
114 Has ImageBlt: 17085000 Pixels in 3.07 seconds -> 5.57 Megapels
115 Has HlineLst: 20192124 Pixels in 0.57 seconds -> 35.42 Megapels
116 Testing mode 11: G800x600x256...
117 Has support for CLUT width 8 bit
118 Has BitBlt: 176610000 Pixels in 6.65 seconds -> 26.56 Megapels
119 Has FillBlt: 343102613 Pixels in 6.23 seconds -> 55.07 Megapels
120 Has ImageBlt: 17085000 Pixels in 3.06 seconds -> 5.58 Megapels
121 Has HlineLst: 33166399 Pixels in 0.78 seconds -> 42.52 Megapels
122 Testing mode 12: G1024x768x256...
123 Has support for CLUT width 8 bit
124 Has BitBlt: 176610000 Pixels in 6.88 seconds -> 25.67 Megapels
125 Has FillBlt: 603141286 Pixels in 9.78 seconds -> 61.67 Megapels
126 Has ImageBlt: 17085000 Pixels in 3.07 seconds -> 5.57 Megapels
127 Has HlineLst: 52958845 Pixels in 1.08 seconds -> 49.04 Megapels
128 Testing mode 13: G1280x1024x256...
129 Has support for CLUT width 8 bit
130 Has BitBlt: 176610000 Pixels in 7.10 seconds -> 24.87 Megapels
131 Has FillBlt: 1063820849 Pixels in 16.16 seconds -> 65.83 Megapels
132 Has ImageBlt: 17085000 Pixels in 3.07 seconds -> 5.57 Megapels
133 Has HlineLst: 95798478 Pixels in 1.75 seconds -> 54.74 Megapels
134 Testing mode 14: G320x200x32K...
135 Dacwidth test not applicable.
136 Has BitBlt: 176610000 Pixels in 12.30 seconds -> 14.36 Megapels
137 Has FillBlt: 41317334 Pixels in 3.61 seconds -> 11.45 Megapels
138 Has ImageBlt: 17085000 Pixels in 5.93 seconds -> 2.88 Megapels
139 Has HlineLst: 3411068 Pixels in 0.23 seconds -> 14.83 Megapels
140 Testing mode 15: G320x200x64K...
141 Dacwidth test not applicable.
142 Has BitBlt: 176610000 Pixels in 12.29 seconds -> 14.37 Megapels
143 Has FillBlt: 42351016 Pixels in 4.12 seconds -> 10.28 Megapels
144 Has ImageBlt: 17085000 Pixels in 5.93 seconds -> 2.88 Megapels
145 Has HlineLst: 3561694 Pixels in 0.23 seconds -> 15.49 Megapels
146 Testing mode 16: G320x200x16M...
147 Dacwidth test not applicable.
148 Has ImageBlt: 17085000 Pixels in 8.83 seconds -> 1.93 Megapels
149 Testing mode 17: G640x480x32K...
150 Dacwidth test not applicable.
151 Has BitBlt: 176610000 Pixels in 13.38 seconds -> 13.20 Megapels
152 Has FillBlt: 217723964 Pixels in 7.95 seconds -> 27.39 Megapels
153 Has ImageBlt: 17085000 Pixels in 5.94 seconds -> 2.88 Megapels
154 Has HlineLst: 19579110 Pixels in 0.74 seconds -> 26.46 Megapels
155 Testing mode 18: G640x480x64K...
156 Dacwidth test not applicable.
157 Has BitBlt: 176610000 Pixels in 13.37 seconds -> 13.21 Megapels
158 Has FillBlt: 221608034 Pixels in 8.28 seconds -> 26.76 Megapels
159 Has ImageBlt: 17085000 Pixels in 5.93 seconds -> 2.88 Megapels
160 Has HlineLst: 21048202 Pixels in 0.79 seconds -> 26.64 Megapels
161 Testing mode 19: G640x480x16M...
162 Dacwidth test not applicable.
163 Has ImageBlt: 17085000 Pixels in 8.82 seconds -> 1.94 Megapels
164 Testing mode 20: G800x600x32K...
165 Dacwidth test not applicable.
166 Has BitBlt: 176610000 Pixels in 13.97 seconds -> 12.64 Megapels
167 Has FillBlt: 357205415 Pixels in 12.22 seconds -> 29.23 Megapels
168 Has ImageBlt: 17085000 Pixels in 5.92 seconds -> 2.89 Megapels
169 Has HlineLst: 34391335 Pixels in 1.16 seconds -> 29.65 Megapels
170 Testing mode 21: G800x600x64K...
171 Dacwidth test not applicable.
172 Has BitBlt: 176610000 Pixels in 13.97 seconds -> 12.64 Megapels
173 Has FillBlt: 348943970 Pixels in 11.87 seconds -> 29.40 Megapels
174 Has ImageBlt: 17085000 Pixels in 5.93 seconds -> 2.88 Megapels
175 Has HlineLst: 34510200 Pixels in 1.17 seconds -> 29.50 Megapels
176 Testing mode 22: G800x600x16M...
177 Dacwidth test not applicable.
178 Has ImageBlt: 17085000 Pixels in 8.83 seconds -> 1.93 Megapels
179 Testing mode 23: G1024x768x32K...
180 Dacwidth test not applicable.
181 Has BitBlt: 176610000 Pixels in 14.60 seconds -> 12.10 Megapels
182 Has FillBlt: 608000981 Pixels in 18.62 seconds -> 32.65 Megapels
183 Has ImageBlt: 17085000 Pixels in 5.93 seconds -> 2.88 Megapels
184 Has HlineLst: 53767429 Pixels in 1.72 seconds -> 31.26 Megapels
185 Testing mode 24: G1024x768x64K...
186 Dacwidth test not applicable.
187 Has BitBlt: 176610000 Pixels in 14.60 seconds -> 12.10 Megapels
188 Has FillBlt: 601666798 Pixels in 18.80 seconds -> 32.00 Megapels
189 Has ImageBlt: 17085000 Pixels in 5.92 seconds -> 2.89 Megapels
190 Has HlineLst: 52037798 Pixels in 1.67 seconds -> 31.16 Megapels
191 Testing mode 32: G720x348x2...
192 Dacwidth test not applicable.
193 Testing mode 33: G320x200x16M32...
194 Dacwidth test not applicable.
195 Has ImageBlt: 17085000 Pixels in 11.60 seconds -> 1.47 Megapels
196 Testing mode 34: G640x480x16M32...
197 Dacwidth test not applicable.
198 Has ImageBlt: 17085000 Pixels in 11.62 seconds -> 1.47 Megapels
199 Testing mode 35: G800x600x16M32...
200 Dacwidth test not applicable.
201 Has ImageBlt: 17085000 Pixels in 11.62 seconds -> 1.47 Megapels
202 This demo is part of svgalib and can be found in the demos/ subdirec‐
204 tory of the original svgalib distribution. However, it is not installed
205 in the system by default, s.t. it is unclear where you can find it if
206 your svgalib was installed by some linux distribution. Even then, when
207 you have the demo on your system, you probably won't have the sources
208 s.t. it is only of limited use for you.
209 In case of any such problem, simply get an svgalib distribution from
211 the net. You even don't need to install it. Just make in the demos/
212 subdirecty. As of this writing, svgalib-1.2.12.tar.gz is the latest
213 version and can be retrieved by ftp from sunsite.unc.edu at
214 /pub/Linux/libs/graphics and tsx-11.mit.edu at /pub/linux/sources/libs
215 which will most probably be mirrored by a site close to you.
216
219 svgalib(7), vgagl(7), libvga.config(5), vga_ext_set(3), vga_bitblt(3),
220 vga_fillblt(3), vga_hlinelistblt(3), vga_imageblt.3 threed(6),
221 accel(6), bg_test(6), eventtest(6), forktest(6), fun(6), keytest(6),
222 mousetest(6), scrolltest(6), speedtest(6), spin(6), testgl(6), testlin‐
223 ear(6), vgatest(6), plane(6), wrapdemo(6)
224
227 This manual page was edited by Michael Weller <eowmob@exp-math.uni-
228 essen.de>. He also wrote thise demo and it's documentation.
229Svgalib (>= 1.2.11) 29 July 1997 testaccel(6)