> > > I found a bug in libggi: tile-over-xlib produces colors with blue > > > characteristics. > > This bug is really really mysterious! > > I can't reproduce this bug on my private machine! > > > At my FH: > > WinNT with local Exceed (= X-server for Win32), > > remotely connected to a Linux Box via telnet, > > output is redirected to the WinNT Box. > > (Here I _can_ reproduce this bug very easy) > > That sounds like a problem with setting up the color model of the server > or similar. Like trying to write "-RGB" instead of the expected "RGB-" > or BGR<->RGB. Could you try to display a set of base colors and see how > they look like ? That might give a clue on the type of error.
Here is the test program:
-----------------------------------
#include <ggi/ggi.h>
int main(void)
{
ggi_visual_t vis;
ggi_mode mode;
ggi_color color;
ggi_pixel pixel;
int i;
ggiInit();
vis = ggiOpen(NULL);
if (!vis) ggiPanic("Couldn't open a default visual!\n");
memset(&mode, GGI_AUTO, sizeof(ggi_mode));
ggiCheckMode(vis, &mode);
ggiPrintMode(&mode);
ggiSetMode(vis, &mode);
ggiSetColorfulPalette(vis);
i = 0;
/* draw basic colors */
while (!ggiKbhit(vis)) {
char str[20];
color.r = 0xFFFF;
color.g = 0xFFFF;
color.b = 0xFFFF;
pixel = ggiMapColor(vis, &color);
ggiSetGCForeground(vis, pixel);
sprintf(str, "i: %X", i);
ggiPuts(vis, 100,0, str);
color.r = i;
color.g = 0x0000;
color.b = 0x0000;
pixel = ggiMapColor(vis, &color);
ggiSetGCForeground(vis, pixel);
ggiDrawBox(vis, 0,0, 20,20);
color.r = 0x0000;
color.g = i;
color.b = 0x0000;
pixel = ggiMapColor(vis, &color);
ggiSetGCForeground(vis, pixel);
ggiDrawBox(vis, 0,30, 20,20);
color.r = 0x0000;
color.g = 0x0000;
color.b = i;
pixel = ggiMapColor(vis, &color);
ggiSetGCForeground(vis, pixel);
ggiDrawBox(vis, 0,60, 20,20);
i += 0x0100;
if (i >= 65536) i = 0;
ggiFlush(vis);
} /* while */
ggiClose(vis);
ggiExit();
} /* main */
------------------------------------
This program shows/should show a red, green and a blue box and a white
counter.
And here is the result (below the line is the color I see on the screen):
used display red green
blue counter
------------------------------------------------
GGI_DISPLAY="X" red green blue
white
GGI_DISPLAY="Xlib" red green blue
white
GGI_DISPLAY="tile:0,0,640,480,(X)" red green blue white
GGI_DISPLAY="tile:0,0,640,480,(Xlib)" black blue green light
blue
--
CU,
Christoph Egger
E-Mail: [EMAIL PROTECTED]
GMX - Die Kommunikationsplattform im Internet.
http://www.gmx.net
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