static gint gdk_colormap_match_color (GdkColormap *cmap,
GdkColor *color,
const gchar *available);
+static void gdk_fb_color_round_to_hw (GdkColor *color);
static gpointer parent_class;
gint private_cmap)
{
GdkColormap *colormap;
+ GdkColormap *system;
GdkColormapPrivateFB *private;
GdkFBDisplay *fbd;
int i;
private->hash = g_hash_table_new ((GHashFunc) gdk_color_hash,
(GEqualFunc) gdk_color_equal);
+
+ system = gdk_colormap_get_system ();
+ memcpy (colormap->colors, system->colors, colormap->size * sizeof (GdkColor));
if (private_cmap)
{
if (!colormap)
{
- guint16 red[256], green[256], blue[256];
- struct fb_cmap fbc = {0, 256};
- int i, r, g, b;
+ GdkColormapPrivateFB *private;
GdkVisual *visual = gdk_visual_get_system ();
+ int i, r, g, b;
+
+ colormap = g_object_new (gdk_colormap_get_type (), NULL);
+ private = GDK_COLORMAP_PRIVATE_DATA (colormap);
- if (visual->type == GDK_VISUAL_GRAYSCALE
- || visual->type == GDK_VISUAL_PSEUDO_COLOR)
+ colormap->visual = visual;
+ private->hash = NULL;
+
+ colormap->size = visual->colormap_size;
+ colormap->colors = NULL;
+
+ switch (visual->type)
{
- fbc.red = red;
- fbc.green = green;
- fbc.blue = blue;
+ case GDK_VISUAL_STATIC_GRAY:
+ case GDK_VISUAL_STATIC_COLOR:
+ case GDK_VISUAL_GRAYSCALE:
+ case GDK_VISUAL_PSEUDO_COLOR:
+ private->info = g_new0 (GdkColorInfo, colormap->size);
+ colormap->colors = g_new (GdkColor, colormap->size);
+
+ private->hash = g_hash_table_new ((GHashFunc) gdk_color_hash,
+ (GEqualFunc) gdk_color_equal);
switch(visual->type)
{
case GDK_VISUAL_GRAYSCALE:
- for(i = 0; i < 256; i++)
- red[i] = green[i] = blue[i] = i << 8;
+ for(i = 0; i < 256; i++) {
+ colormap->colors[i].red =
+ colormap->colors[i].green =
+ colormap->colors[i].blue = i << 8;
+ gdk_fb_color_round_to_hw (&colormap->colors[i]);
+ }
i--;
- red[i] = green[i] = blue[i] = 65535; /* Make it a true white */
+ colormap->colors[i].red =
+ colormap->colors[i].green =
+ colormap->colors[i].blue = 65535; /* Make it a true white */
+ gdk_fb_color_round_to_hw (&colormap->colors[i]);
break;
case GDK_VISUAL_PSEUDO_COLOR:
/* Color cube stolen from gdkrgb upon advice from Owen */
for(g = 0; g < 6; g++)
for(b = 0; b < 6; b++)
{
- red[i] = r * 65535 / 5;
- green[i] = g * 65535 / 5;
- blue[i] = b * 65535 / 5;
+ colormap->colors[i].red = r * 65535 / 5;
+ colormap->colors[i].green = g * 65535 / 5;
+ colormap->colors[i].blue = b * 65535 / 5;
+ gdk_fb_color_round_to_hw (&colormap->colors[i]);
i++;
}
g_assert (i == 216);
-
- /* Fill in remaining space with grays */
+ /* Fill in remaining space with grays */
for(i = 216; i < 256; i++)
{
- red[i] = green[i] = blue[i] =
- (i - 216) * 40;
+ colormap->colors[i].red =
+ colormap->colors[i].green =
+ colormap->colors[i].blue = (i - 216) * 40;
+ gdk_fb_color_round_to_hw (&colormap->colors[i]);
}
/* Real white */
- red[255] = green[255] = blue[255] = 65535;
+ colormap->colors[255].red =
+ colormap->colors[255].green =
+ colormap->colors[255].blue = 65535;
+ gdk_fb_color_round_to_hw (&colormap->colors[255]);
+
break;
default:
break;
}
-
- ioctl (gdk_display->fd, FBIOPUTCMAP, &fbc);
+ break;
+ case GDK_VISUAL_DIRECT_COLOR:
+ g_error("NYI");
+ break;
+ default:
+ g_assert_not_reached ();
+ case GDK_VISUAL_TRUE_COLOR:
+ break;
}
-
- colormap = gdk_colormap_new (visual, TRUE);
+
+ /* Lock all colors for the system colormap
+ * on pseudocolor visuals. The AA text rendering
+ * takes to many colors otherwise.
+ */
+ if ((visual->type == GDK_VISUAL_GRAYSCALE) ||
+ (visual->type == GDK_VISUAL_PSEUDO_COLOR))
+ {
+ for(i = 0; i < 256; i++)
+ {
+ colormap->colors[i].pixel = i;
+ private->info[i].ref_count = 1;
+ g_hash_table_insert (private->hash,
+ &colormap->colors[i],
+ &colormap->colors[i]);
+ }
+ }
+ gdk_colormap_change (colormap, colormap->size);
}
return colormap;
* Color allocation *
********************/
+static void
+gdk_fb_color_round_to_hw (GdkColor *color)
+{
+ guint rmask, gmask, bmask, len;
+
+ len = gdk_display->modeinfo.red.length;
+ rmask = ((1 << len) - 1) << (16-len);
+ len = gdk_display->modeinfo.green.length;
+ gmask = ((1 << len) - 1) << (16-len);
+ len = gdk_display->modeinfo.blue.length;
+ bmask = ((1 << len) - 1) << (16-len);
+
+ color->red &=rmask;
+ color->green &=gmask;
+ color->blue &=bmask;
+}
+
/* Try to allocate a single color using XAllocColor. If it succeeds,
* cache the result in our colormap, and store in ret.
*/
return FALSE;
*ret = *color;
- if (!color->red && !color->green && !color->blue) /* black */
- {
- ret->pixel = 0;
- private->info[ret->pixel].ref_count++;
- return TRUE;
- }
+
+ gdk_fb_color_round_to_hw (ret);
- if (color->red == 65535 && color->green == 65535 && color->blue == 65535) /* white */
+ for (i = 0; i<colormap->size; i++)
{
- ret->pixel = 255;
- private->info[ret->pixel].ref_count++;
- return TRUE;
+ if (!(private->info[i].flags && GDK_COLOR_WRITEABLE) &&
+ (ret->red == colormap->colors[i].red) &&
+ (ret->green == colormap->colors[i].green) &&
+ (ret->blue == colormap->colors[i].blue))
+ {
+ ret->pixel = i;
+ colormap->colors[i].pixel = i;
+ if (private->info[i].ref_count == 0)
+ g_hash_table_insert (private->hash,
+ &colormap->colors[ret->pixel],
+ &colormap->colors[ret->pixel]);
+ private->info[i].ref_count++;
+ return TRUE;
+ }
}
- for (i = 1; i < (colormap->size - 1); i++)
+ for (i = 0; i<colormap->size; i++)
{
- if (!private->info[i].ref_count)
+ if (private->info[i].ref_count==0)
{
guint16 red = color->red, green = color->green, blue = color->blue;
struct fb_cmap fbc;
return TRUE;
}
}
-
+
return FALSE;
}
case GDK_VISUAL_GRAYSCALE:
color->red = color->green = color->blue = (color->red + color->green + color->blue)/3;
+ /* Fall through */
case GDK_VISUAL_PSEUDO_COLOR:
+ colormap->colors[color->pixel] = *color;
+
fbc.start = color->pixel;
fbc.red = &color->red;
fbc.green = &color->green;
return index;
}
-gint
+gboolean
gdk_colors_alloc (GdkColormap *colormap,
gboolean contiguous,
gulong *planes,
gulong *pixels,
gint npixels)
{
- return 0;
+ GdkColormapPrivateFB *private;
+ gint found, i, col;
+
+ g_return_val_if_fail (colormap != NULL, FALSE);
+
+ private = GDK_COLORMAP_PRIVATE_DATA (colormap);
+
+ if (nplanes > 0)
+ return 0;
+
+ found = 0;
+ for (i = 1; i < colormap->size; i++)
+ {
+ if (private->info[i].ref_count == 0)
+ {
+ found++;
+ if (found >= npixels)
+ break;
+ }
+ }
+
+ if (found < npixels)
+ return FALSE;
+
+ col = 0;
+ for (i = 1; i < colormap->size; i++)
+ {
+ if (private->info[i].ref_count == 0)
+ {
+ pixels[col++] = i;
+ private->info[i].ref_count++;
+ private->info[i].flags |= GDK_COLOR_WRITEABLE;
+ if (col == npixels)
+ return TRUE;
+ }
+ }
+
+ g_assert_not_reached ();
+ return FALSE;
}
void
gint npixels,
gulong planes)
{
+ GdkColormapPrivateFB *private;
+ gint i, pixel;
+
+ g_return_if_fail (colormap != NULL);
+
+ if ((colormap->visual->type != GDK_VISUAL_PSEUDO_COLOR) &&
+ (colormap->visual->type != GDK_VISUAL_GRAYSCALE))
+ return;
+
+ private = GDK_COLORMAP_PRIVATE_DATA (colormap);
+
+ for (i = 0; i < npixels; i++)
+ {
+ pixel = pixels[i];
+
+ if (private->info[pixel].ref_count)
+ {
+ private->info[pixel].ref_count--;
+
+ if (private->info[pixel].ref_count == 0)
+ {
+ if (!(private->info[pixel].flags & GDK_COLOR_WRITEABLE))
+ g_hash_table_remove (private->hash, &colormap->colors[pixel]);
+ private->info[pixel].flags = 0;
+ }
+ }
+ }
}
projects / gtk4.git / commitdiff