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cmap-x11.c
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cmap-x11.c
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/***********************************************************
* K O U L E S *
*----------------------------------------------------------*
* C1995 JAHUSOFT *
* Jan Hubicka *
* Dukelskych Bojovniku 1944 *
* 390 03 Tabor *
* Czech Republic *
* Phone: 0041-361-32613 *
* eMail: [email protected] *
*----------------------------------------------------------*
*Copyright(c)1995,1996 by Jan Hubicka.See README forlicense*
* details. *
*----------------------------------------------------------*
* cmap-x11.c colormap routines for x11 *
* unclean....I know *
***********************************************************/
#include "koules.h"
#define col(i,y) (i>63?63:i)
#define NKEEP 28 /*how many collow keep in provate colormap */
int fadedout = 0;
void
setmonopalette ()
{
int i;
notusedc = 3;
for (i = 0; i < 256; i++)
pixels[i] = BlackPixel (dp, screen),
spixels[i] = 0;
for (i = 0; i < 16; i++)
{
pixels[i] = WhitePixel (dp, screen);
spixels[i] = 64;
pixels[i + 16] = WhitePixel (dp, screen);
spixels[i + 16] = 64;
pixels[i + 32 + 16] = WhitePixel (dp, screen);
spixels[i + 32 + 16] = 64;
pixels[i + 192 + 16] = WhitePixel (dp, screen);
spixels[i + 192 + 16] = 64;
pixels[i + 64] = WhitePixel (dp, screen);
spixels[i + 64] = 64;
pixels[i + 96] = WhitePixel (dp, screen);
spixels[i + 96] = 64;
pixels[i + 128] = WhitePixel (dp, screen);
spixels[i + 128] = 64;
pixels[i + 160] = WhitePixel (dp, screen);
spixels[i + 160] = 64;
}
pixels[0] = BlackPixel (dp, screen),
pixels[255] = WhitePixel (dp, screen),
spixels[0] = 0;
}
static int
setcustompalette1 (CONST int ncolors)
{
/* 0-31 black to yellow for starwars scroller */
/* 32-63 black to red */
/* 64-96 for red koules */
/* 96-128 for yellow rockets */
/* 128-160 for green rockets */
/* 160-192 for blue rockets */
/* 192-256 gray cmap for stars */
unsigned long pixels1[256];
int npixels1;
unsigned char pal[256][3];
int i;
int y;
const int p = 0;
int lr = -1, lg = -1, lb = -1, lpixel = -1;
XColor c[256];
int nallocated = 0;
if (useprivate)
{
nallocated = NKEEP;
for (i = 0; i < NKEEP; i++)
c[i].pixel = i;
XQueryColors (dp, DefaultColormap (dp, screen), c, NKEEP);
for (i = 0; i < NKEEP; i++)
XStoreColors (dp, colormap, c, NKEEP);
}
for (i = 0; i < 64; i++)
{
int r, g, b;
r = g = b = 0;
y = (i * ncolors / 32) * 32 / ncolors;
if ((y & 32) > 0)
b = (y & 31) << 1;
if (y < 32)
{
r = (y & 3) << 4; /* 2 bits */
g = (y & 4) << 3; /* 1 bit */
b = (y & 24) << 1; /* 2 bits */
}
pal[i][0] = col (r + p, p1);
pal[i][1] = col (g + p, p1);
pal[i][2] = col (b + p, p1);
}
for (i = 64; i < 64 + 32; i++)
{
int r, g, b;
y = (i * ncolors / 32) * 32 / ncolors;
if (y < 64)
y = 64;
r = g = b = 0;
r = (32 - (y - 63)) << 1;
if (i < 64 + 8)
{
b = g = (((8 - (y - 63))) << 5) / 5;
}
pal[i][0] = col (r + p, p1);
pal[i][1] = col (g + p, p1);
pal[i][2] = col (b + p, p1);
}
for (i = 96; i < 96 + 32; i++)
{
int r, g, b;
y = (i * ncolors / 32) * 32 / ncolors;
if (y < 96)
y = 96;
r = g = b = 0;
r = g = (32 - (y - 95)) << 1;
if (i < 96 + 8)
{
b = ((8 - (y - 95))) << 3;
}
pal[i][0] = col (r + p, p1);
pal[i][1] = col (g + p, p1);
pal[i][2] = col (b + p, p1);
}
for (i = 128; i < 128 + 32; i++)
{
int r, g, b;
y = (i * ncolors / 32) * 32 / ncolors;
if (y < 128)
y = 128;
r = g = b = 0;
g = (32 - (y - 127)) << 1;
if (i < 128 + 8)
{
r = b = ((8 - (i - 127))) << 3;
}
pal[i][0] = col (r + p, p1);
pal[i][1] = col (g + p, p1);
pal[i][2] = col (b + p, p1);
}
for (i = 160; i < 160 + 32; i++)
{
int r, g, b;
y = (i * ncolors / 32) * 32 / ncolors;
if (y < 160)
y = 160;
r = g = b = 0;
b = (32 - (y - 159)) << 1;
if (i < 160 + 8)
{
r = g = (((8 - (y - 159))) << 3) / 2;
}
pal[i][0] = col (r + p, p1);
pal[i][1] = col (g + p, p1);
pal[i][2] = col (b + p, p1);
}
for (i = 0; i < 32; i++)
{
y = (i * ncolors / 32) * 32 / ncolors;
if (ncolors < 8)
{
pal[i][0] = 64;
pal[i][1] = 64;
pal[i][2] = 0;
}
else
{
pal[i][0] = col (y * 2 + p, p1);
pal[i][1] = col (y * 2 + p, p1);
pal[i][2] = col (p, p1);
}
}
for (i = 0; i < 32; i++)
{
y = (i * ncolors / 32) * 32 / ncolors;
if (ncolors < 8)
{
pal[192 + i][0] = 64;
pal[192 + i][1] = 64;
pal[192 + i][2] = 64;
}
else
{
pal[192 + i][0] = col (y * 2 + p, p1);
pal[192 + i][1] = col (y * 2 + p, p1);
pal[192 + i][2] = col (y * 2 + p, p1);
}
}
pal[0][0] = 0;
pal[0][1] = 0;
pal[0][2] = 0;
pal[255][0] = col (63 + p, p1);
pal[255][1] = col (63 + p, p1);
pal[255][2] = col (63 + p, p1);
npixels1 = 0;
for (i = 0; i < 256; i++)
{
float sat;
sat = pal[i][0] * 0.3 + pal[i][1] * 0.5 + pal[i][2] * 0.2;
if (monochrome)
sat = pow (sat / 64, 0.6) * 64;
spixels[i] = sat;
if (ncolors == 32)
{
opixels[i] = sat;
}
}
for (i = 0; i < 256 && !blackwhite; i++)
{
if (lr == pal[i][0] && lg == pal[i][1] && lb == pal[i][2])
pixels[i] = lpixel;
else
{
XColor color;
if (!monochrome)
{
color.flags = DoRed | DoGreen | DoBlue;
color.red = (unsigned short) (pal[i][0]) * 256 * 4;
color.green = (unsigned short) (pal[i][1]) * 256 * 4;
color.blue = (unsigned short) (pal[i][2]) * 256 * 4;
color.pixel = npixels1;
}
else
{
color.flags = DoRed | DoGreen | DoBlue;
color.red = (unsigned short) (spixels[i]) * 256 * 4;
color.green = (unsigned short) (spixels[i]) * 256 * 4;
color.blue = (unsigned short) (spixels[i]) * 256 * 4;
color.pixel = npixels1;
}
if (!useprivate && !XAllocColor (dp, colormap, &color))
{
XFreeColors (dp, colormap, pixels1, npixels1, 0L);
return (0);
}
if (useprivate)
{
int i;
for (i = 0; i < nallocated; i++)
{
if ((c[i].red & 0xfc00) == (color.red && 0xfc00) && (c[i].blue & 0xfc00) == (color.blue & 0xfc00) &&
(c[i].green & 0xfc00) == (color.green & 0xfc00))
{
color.pixel = i;
break;
}
}
if (i == nallocated)
color.pixel = i, nallocated++;
if (nallocated >= 256)
printf ("Cmap owerflow!");
XStoreColor (dp, colormap, &color);
c[i].red = color.red;
c[i].green = color.green;
c[i].blue = color.blue;
}
pixels1[npixels1] = color.pixel;
lpixel = color.pixel;
lr = pal[i][0];
lg = pal[i][1];
lb = pal[i][2];
npixels1++;
}
pixels[i] = lpixel;
}
return (1);
}
void
setcustompalette (CONST int p, CONST float p1)
{
int ncolor, i;
if (blackwhite)
{
nofade = 1;
monochrome = 1;
setcustompalette1 (32);
setmonopalette ();
return;
}
printf ("Allocating pallette\n");
for (ncolor = 32; ncolor > 8; ncolor -= 4)
{
printf ("%i-", ncolor);
if (setcustompalette1 (ncolor))
{
notusedc = 0;
for (i = 0; i < 256; i++)
if (notusedc == pixels[i])
notusedc++, i = 0;
printf ("ok\n");
return;
}
}
printf ("failed...using slow algoritmus and private colormap\n");
colormap = XCreateColormap (dp, wi,
DefaultVisual (dp, XDefaultScreen (dp)),
AllocAll);
XSetWindowColormap (dp, wi, colormap);
useprivate = 1;
for (ncolor = 32; ncolor > 0; ncolor -= 1)
{
printf ("%i-", ncolor);
if (setcustompalette1 (ncolor))
{
notusedc = 0;
for (i = 0; i < 256; i++)
if (notusedc == pixels[i])
notusedc++, i = 0;
printf ("ok\n");
return;
}
}
printf ("Could not allocate colormap try -m option\n");
exit (-1);
}
/* adapted from 'xscreensaver',
*/
#define XFADE_IN 1
#define XFADE_OUT 0
#define NUM_COLORS 256
void
Fade (CONST int steps)
{
static int state = XFADE_IN;
static XColor orig_colors[NUM_COLORS];
XColor curr_colors[NUM_COLORS];
int i, j;
static Colormap *fade_cmap, new_cmap;
if (!fadeenable || nofade)
return;
nopause = 1;
/* Set the requested pixels */
for (i = 0; i < NUM_COLORS; ++i)
orig_colors[i].pixel = i;
state = ((state == XFADE_IN) ? XFADE_OUT : XFADE_IN);
/* Make a copy of the default colormap and use that in fade */
if (useprivate)
{
if (state == XFADE_OUT)
{
XQueryColors (dp, colormap, orig_colors,
NUM_COLORS);
fade_cmap = &colormap;
}
}
else
{
XQueryColors (dp, colormap, orig_colors, NUM_COLORS);
if (state == XFADE_OUT)
{
new_cmap = XCreateColormap (dp,
DefaultRootWindow (dp),
DefaultVisual (dp, XDefaultScreen (dp)),
AllocAll);
XStoreColors (dp, new_cmap, orig_colors, NUM_COLORS);
XGrabServer (dp);
XInstallColormap (dp, new_cmap);
fade_cmap = &new_cmap;
}
}
XSync (dp, False);
memcpy (curr_colors, orig_colors, NUM_COLORS * sizeof (XColor));
if (state == XFADE_OUT)
{
for (i = steps; i > 0; i--)
{
for (j = 0; j < NUM_COLORS; j++)
{
curr_colors[j].red =
orig_colors[j].red * i / steps;
curr_colors[j].green =
orig_colors[j].green * i / steps;
curr_colors[j].blue =
orig_colors[j].blue * i / steps;
}
XStoreColors (dp, *fade_cmap,
curr_colors, NUM_COLORS);
usleep (10);
XSync (dp, False);
}
}
else
{
for (i = 0; i < steps; i++)
{
for (j = 0; j < NUM_COLORS; j++)
{
curr_colors[j].red =
orig_colors[j].red * i / steps;
curr_colors[j].green =
orig_colors[j].green * i / steps;
curr_colors[j].blue =
orig_colors[j].blue * i / steps;
}
XStoreColors (dp, *fade_cmap,
curr_colors, NUM_COLORS);
usleep (10);
XSync (dp, False);
}
}
if (state == XFADE_IN)
{
/* Restore the original colormap */
if (useprivate)
{
XStoreColors (dp, colormap,
orig_colors, NUM_COLORS);
}
else
{
XInstallColormap (dp, colormap);
XUngrabServer (dp);
XFreeColormap (dp, *fade_cmap);
}
XSync (dp, False);
}
nopause = 0;
}
void
fadeout ()
{
if (!fadedout)
{
Fade (30);
fadedout = 1;
tbreak = 1;
}
}
void
fadein ()
{
if (fadedout)
{
Fade (30);
fadedout = 0;
tbreak = 1;
}
}
void
fadein1 () /*better for star background */
{
if (fadedout)
{
Fade (30);
fadedout = 0;
tbreak = 1;
}
}