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handle increase_depth on 1bpp images

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This commit is contained in:
Dana Jansens 2003-06-03 05:04:12 +00:00
parent 70a34967d6
commit c4e60e4ad2
1 changed files with 13 additions and 35 deletions
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48
render/color.c
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@ -184,6 +184,7 @@ void increase_depth(pixel32 *data, XImage *im)
switch (im->bits_per_pixel) { switch (im->bits_per_pixel) {
case 32: case 32:
g_message("increase 32");
for (y = 0; y < im->height; y++) { for (y = 0; y < im->height; y++) {
for (x = 0; x < im->width; x++) { for (x = 0; x < im->width; x++) {
r = (p32[x] >> render_red_offset) & 0xff; r = (p32[x] >> render_red_offset) & 0xff;
@ -199,6 +200,7 @@ void increase_depth(pixel32 *data, XImage *im)
} }
break; break;
case 16: case 16:
g_message("increase 16");
for (y = 0; y < im->height; y++) { for (y = 0; y < im->height; y++) {
for (x = 0; x < im->width; x++) { for (x = 0; x < im->width; x++) {
r = (p16[x] & render_red_mask) >> render_red_offset << r = (p16[x] & render_red_mask) >> render_red_offset <<
@ -217,44 +219,20 @@ void increase_depth(pixel32 *data, XImage *im)
} }
break; break;
case 8: case 8:
g_assert(render_visual->class != TrueColor); g_message("this bit depth is currently unhandled\n");
break;
case 1:
for (y = 0; y < im->height; y++) { for (y = 0; y < im->height; y++) {
for (x = 0; x < im->width; x++) { for (x = 0; x < im->width; x++) {
XColor icolor; if (!(((p8[x / 8]) >> (x % 8)) & 0x1))
int ii, r, g, b; data[x] = 0xff << default_alpha_offset; /* black */
gulong dev, closest = 0xffffffff, close = 0; else
data[x] = 0xffffffff; /* white */
icolor.pixel = p8[x]; }
XQueryColor(ob_display, render_colormap, &icolor); data += im->width;
p8 += im->bytes_per_line;
/* find the nearest color match */
for (ii = 0; ii < pseudo_ncolors(); ii++) {
/* find deviations */
r = (pseudo_colors[ii].red - icolor.red) & 0xff;
g = (pseudo_colors[ii].green - icolor.green) & 0xff;
b = (pseudo_colors[ii].blue - icolor.blue) & 0xff;
/* find a weighted absolute deviation */
dev = (r * r) + (g * g) + (b * b);
if (dev < closest) {
closest = dev;
close = ii;
}
}
data[x] =
(pseudo_colors[close].red & 0xff <<
default_red_offset) +
(pseudo_colors[close].green & 0xff <<
default_green_offset) +
(pseudo_colors[close].blue & 0xff <<
default_blue_offset) +
(0xff << default_alpha_offset);
} }
data += im->width; break;
p8 += im->bytes_per_line;
}
break;
default: default:
g_message("your bit depth is currently unhandled\n"); g_message("your bit depth is currently unhandled\n");
} }