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More complete colormap handling. Now GdkRGB work in 8 bpp modes.

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2000-12-05  Alexander Larsson  <alexl@redhat.com>

	* gdk/linux-fb/gdkcolor-fb.c:
	More complete colormap handling. Now GdkRGB work in 8 bpp modes.

	* gdk/linux-fb/gdkdrawable-fb2.c (gdk_fb_draw_image):
	Must set colormap.
This commit is contained in:
Alexander Larsson 2000-12-05 16:58:25 +00:00 committed by Alexander Larsson
parent b3fcc83a62
commit b9ef6f2cba
9 changed files with 242 additions and 40 deletions
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8
ChangeLog
View File

@ -1,3 +1,11 @@
2000-12-05 Alexander Larsson <alexl@redhat.com>
* gdk/linux-fb/gdkcolor-fb.c:
More complete colormap handling. Now GdkRGB work in 8 bpp modes.
* gdk/linux-fb/gdkdrawable-fb2.c (gdk_fb_draw_image):
Must set colormap.
Tue Dec 5 13:17:53 GMT 2000 Tony Gale <gale@gtk.org>
* docs/tutorial/gtk-tut.sgml: DND updates

8
ChangeLog.pre-2-0
View File

@ -1,3 +1,11 @@
2000-12-05 Alexander Larsson <alexl@redhat.com>
* gdk/linux-fb/gdkcolor-fb.c:
More complete colormap handling. Now GdkRGB work in 8 bpp modes.
* gdk/linux-fb/gdkdrawable-fb2.c (gdk_fb_draw_image):
Must set colormap.
Tue Dec 5 13:17:53 GMT 2000 Tony Gale <gale@gtk.org>
* docs/tutorial/gtk-tut.sgml: DND updates

8
ChangeLog.pre-2-10
View File

@ -1,3 +1,11 @@
2000-12-05 Alexander Larsson <alexl@redhat.com>
* gdk/linux-fb/gdkcolor-fb.c:
More complete colormap handling. Now GdkRGB work in 8 bpp modes.
* gdk/linux-fb/gdkdrawable-fb2.c (gdk_fb_draw_image):
Must set colormap.
Tue Dec 5 13:17:53 GMT 2000 Tony Gale <gale@gtk.org>
* docs/tutorial/gtk-tut.sgml: DND updates

8
ChangeLog.pre-2-2
View File

@ -1,3 +1,11 @@
2000-12-05 Alexander Larsson <alexl@redhat.com>
* gdk/linux-fb/gdkcolor-fb.c:
More complete colormap handling. Now GdkRGB work in 8 bpp modes.
* gdk/linux-fb/gdkdrawable-fb2.c (gdk_fb_draw_image):
Must set colormap.
Tue Dec 5 13:17:53 GMT 2000 Tony Gale <gale@gtk.org>
* docs/tutorial/gtk-tut.sgml: DND updates

8
ChangeLog.pre-2-4
View File

@ -1,3 +1,11 @@
2000-12-05 Alexander Larsson <alexl@redhat.com>
* gdk/linux-fb/gdkcolor-fb.c:
More complete colormap handling. Now GdkRGB work in 8 bpp modes.
* gdk/linux-fb/gdkdrawable-fb2.c (gdk_fb_draw_image):
Must set colormap.
Tue Dec 5 13:17:53 GMT 2000 Tony Gale <gale@gtk.org>
* docs/tutorial/gtk-tut.sgml: DND updates

8
ChangeLog.pre-2-6
View File

@ -1,3 +1,11 @@
2000-12-05 Alexander Larsson <alexl@redhat.com>
* gdk/linux-fb/gdkcolor-fb.c:
More complete colormap handling. Now GdkRGB work in 8 bpp modes.
* gdk/linux-fb/gdkdrawable-fb2.c (gdk_fb_draw_image):
Must set colormap.
Tue Dec 5 13:17:53 GMT 2000 Tony Gale <gale@gtk.org>
* docs/tutorial/gtk-tut.sgml: DND updates

8
ChangeLog.pre-2-8
View File

@ -1,3 +1,11 @@
2000-12-05 Alexander Larsson <alexl@redhat.com>
* gdk/linux-fb/gdkcolor-fb.c:
More complete colormap handling. Now GdkRGB work in 8 bpp modes.
* gdk/linux-fb/gdkdrawable-fb2.c (gdk_fb_draw_image):
Must set colormap.
Tue Dec 5 13:17:53 GMT 2000 Tony Gale <gale@gtk.org>
* docs/tutorial/gtk-tut.sgml: DND updates

223
gdk/linux-fb/gdkcolor-fb.c
View File

@ -37,6 +37,7 @@
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;
@ -112,6 +113,7 @@ gdk_colormap_new (GdkVisual *visual,
gint private_cmap)
{
GdkColormap *colormap;
GdkColormap *system;
GdkColormapPrivateFB *private;
GdkFBDisplay *fbd;
int i;
@ -140,6 +142,9 @@ gdk_colormap_new (GdkVisual *visual,
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)
{
@ -212,24 +217,44 @@ gdk_colormap_get_system (void)
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 */
@ -237,30 +262,58 @@ gdk_colormap_get_system (void)
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;
@ -443,6 +496,23 @@ gdk_colormap_free_colors (GdkColormap *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.
*/
@ -461,23 +531,30 @@ gdk_colormap_alloc1 (GdkColormap *colormap,
return FALSE;
*ret = *color;
if (!color->red && !color->green && !color->blue) /* black */
gdk_fb_color_round_to_hw (ret);
for (i = 0; i<colormap->size; i++)
{
ret->pixel = 0;
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;
}
}
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;
}
for (i = 1; i < (colormap->size - 1); 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;
@ -499,7 +576,7 @@ gdk_colormap_alloc1 (GdkColormap *colormap,
return TRUE;
}
}
return FALSE;
}
@ -700,7 +777,10 @@ gdk_color_change (GdkColormap *colormap,
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;
@ -753,7 +833,7 @@ gdk_colormap_match_color (GdkColormap *cmap,
return index;
}
gint
gboolean
gdk_colors_alloc (GdkColormap *colormap,
gboolean contiguous,
gulong *planes,
@ -761,7 +841,45 @@ gdk_colors_alloc (GdkColormap *colormap,
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
@ -770,4 +888,31 @@ gdk_colors_free (GdkColormap *colormap,
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;
}
}
}
}

3
gdk/linux-fb/gdkdrawable-fb2.c
View File

@ -952,7 +952,8 @@ gdk_fb_draw_image (GdkDrawable *drawable,
fbd.drawable_data.height = fbd.drawable_data.lim_y = image->height;
fbd.drawable_data.depth = image->depth;
fbd.drawable_data.window_type = GDK_DRAWABLE_PIXMAP;
fbd.drawable_data.colormap = gdk_colormap_get_system ();
gdk_fb_draw_drawable_2 (drawable, gc, (GdkPixmap *)&fbd, xsrc, ysrc, xdest, ydest, width, height, TRUE, TRUE);
}