mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-17 23:10:22 +00:00
595 lines
15 KiB
C
595 lines
15 KiB
C
/* GDK - The GIMP Drawing Kit
|
|
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/*
|
|
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
|
|
* file for a list of people on the GTK+ Team. See the ChangeLog
|
|
* files for a list of changes. These files are distributed with
|
|
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "gdkvisualprivate.h"
|
|
#include "gdkprivate-x11.h"
|
|
#include "gdkscreen-x11.h"
|
|
|
|
#include <X11/Xlib.h>
|
|
#include <X11/Xutil.h>
|
|
|
|
struct _GdkX11Visual
|
|
{
|
|
GdkVisual visual;
|
|
|
|
Visual *xvisual;
|
|
Colormap colormap;
|
|
};
|
|
|
|
struct _GdkX11VisualClass
|
|
{
|
|
GdkVisualClass visual_class;
|
|
};
|
|
|
|
static void gdk_visual_add (GdkVisual *visual);
|
|
static void gdk_visual_decompose_mask (gulong mask,
|
|
gint *shift,
|
|
gint *prec);
|
|
static guint gdk_visual_hash (Visual *key);
|
|
static gboolean gdk_visual_equal (Visual *a,
|
|
Visual *b);
|
|
|
|
|
|
#ifdef G_ENABLE_DEBUG
|
|
|
|
static const gchar *const visual_names[] =
|
|
{
|
|
"static gray",
|
|
"grayscale",
|
|
"static color",
|
|
"pseudo color",
|
|
"true color",
|
|
"direct color",
|
|
};
|
|
|
|
#endif /* G_ENABLE_DEBUG */
|
|
|
|
G_DEFINE_TYPE (GdkX11Visual, gdk_x11_visual, GDK_TYPE_VISUAL)
|
|
|
|
static void
|
|
gdk_x11_visual_init (GdkX11Visual *x11_visual)
|
|
{
|
|
x11_visual->colormap = None;
|
|
}
|
|
|
|
static void
|
|
gdk_x11_visual_finalize (GObject *object)
|
|
{
|
|
GdkVisual *visual = (GdkVisual *)object;
|
|
GdkX11Visual *x11_visual = (GdkX11Visual *)object;
|
|
|
|
if (x11_visual->colormap != None)
|
|
XFreeColormap (GDK_SCREEN_XDISPLAY (visual->screen), x11_visual->colormap);
|
|
|
|
G_OBJECT_CLASS (gdk_x11_visual_parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
gdk_x11_visual_dispose (GObject *object)
|
|
{
|
|
GdkVisual *visual = (GdkVisual *)object;
|
|
GdkX11Visual *x11_visual = (GdkX11Visual *)object;
|
|
|
|
if (x11_visual->colormap != None)
|
|
{
|
|
XFreeColormap (GDK_SCREEN_XDISPLAY (visual->screen), x11_visual->colormap);
|
|
x11_visual->colormap = None;
|
|
}
|
|
|
|
G_OBJECT_CLASS (gdk_x11_visual_parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
gdk_x11_visual_class_init (GdkX11VisualClass *class)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (class);
|
|
|
|
object_class->finalize = gdk_x11_visual_finalize;
|
|
object_class->dispose = gdk_x11_visual_dispose;
|
|
}
|
|
|
|
void
|
|
_gdk_x11_screen_init_visuals (GdkScreen *screen)
|
|
{
|
|
static const gint possible_depths[8] = { 32, 30, 24, 16, 15, 8, 4, 1 };
|
|
static const GdkVisualType possible_types[6] =
|
|
{
|
|
GDK_VISUAL_DIRECT_COLOR,
|
|
GDK_VISUAL_TRUE_COLOR,
|
|
GDK_VISUAL_PSEUDO_COLOR,
|
|
GDK_VISUAL_STATIC_COLOR,
|
|
GDK_VISUAL_GRAYSCALE,
|
|
GDK_VISUAL_STATIC_GRAY
|
|
};
|
|
|
|
GdkX11Screen *x11_screen;
|
|
XVisualInfo *visual_list;
|
|
XVisualInfo visual_template;
|
|
GdkVisual *temp_visual;
|
|
Visual *default_xvisual;
|
|
GdkVisual **visuals;
|
|
int nxvisuals;
|
|
int nvisuals;
|
|
int i, j;
|
|
|
|
g_return_if_fail (GDK_IS_SCREEN (screen));
|
|
x11_screen = GDK_X11_SCREEN (screen);
|
|
|
|
nxvisuals = 0;
|
|
visual_template.screen = x11_screen->screen_num;
|
|
visual_list = XGetVisualInfo (x11_screen->xdisplay, VisualScreenMask, &visual_template, &nxvisuals);
|
|
|
|
visuals = g_new (GdkVisual *, nxvisuals);
|
|
for (i = 0; i < nxvisuals; i++)
|
|
visuals[i] = g_object_new (GDK_TYPE_X11_VISUAL, NULL);
|
|
|
|
default_xvisual = DefaultVisual (x11_screen->xdisplay, x11_screen->screen_num);
|
|
|
|
nvisuals = 0;
|
|
for (i = 0; i < nxvisuals; i++)
|
|
{
|
|
visuals[nvisuals]->screen = screen;
|
|
|
|
if (visual_list[i].depth >= 1)
|
|
{
|
|
#ifdef __cplusplus
|
|
switch (visual_list[i].c_class)
|
|
#else /* __cplusplus */
|
|
switch (visual_list[i].class)
|
|
#endif /* __cplusplus */
|
|
{
|
|
case StaticGray:
|
|
visuals[nvisuals]->type = GDK_VISUAL_STATIC_GRAY;
|
|
break;
|
|
case GrayScale:
|
|
visuals[nvisuals]->type = GDK_VISUAL_GRAYSCALE;
|
|
break;
|
|
case StaticColor:
|
|
visuals[nvisuals]->type = GDK_VISUAL_STATIC_COLOR;
|
|
break;
|
|
case PseudoColor:
|
|
visuals[nvisuals]->type = GDK_VISUAL_PSEUDO_COLOR;
|
|
break;
|
|
case TrueColor:
|
|
visuals[nvisuals]->type = GDK_VISUAL_TRUE_COLOR;
|
|
break;
|
|
case DirectColor:
|
|
visuals[nvisuals]->type = GDK_VISUAL_DIRECT_COLOR;
|
|
break;
|
|
}
|
|
|
|
visuals[nvisuals]->depth = visual_list[i].depth;
|
|
visuals[nvisuals]->byte_order =
|
|
(ImageByteOrder(x11_screen->xdisplay) == LSBFirst) ?
|
|
GDK_LSB_FIRST : GDK_MSB_FIRST;
|
|
visuals[nvisuals]->red_mask = visual_list[i].red_mask;
|
|
visuals[nvisuals]->green_mask = visual_list[i].green_mask;
|
|
visuals[nvisuals]->blue_mask = visual_list[i].blue_mask;
|
|
visuals[nvisuals]->colormap_size = visual_list[i].colormap_size;
|
|
visuals[nvisuals]->bits_per_rgb = visual_list[i].bits_per_rgb;
|
|
GDK_X11_VISUAL (visuals[nvisuals])->xvisual = visual_list[i].visual;
|
|
|
|
if ((visuals[nvisuals]->type == GDK_VISUAL_TRUE_COLOR) ||
|
|
(visuals[nvisuals]->type == GDK_VISUAL_DIRECT_COLOR))
|
|
{
|
|
gdk_visual_decompose_mask (visuals[nvisuals]->red_mask,
|
|
&visuals[nvisuals]->red_shift,
|
|
&visuals[nvisuals]->red_prec);
|
|
|
|
gdk_visual_decompose_mask (visuals[nvisuals]->green_mask,
|
|
&visuals[nvisuals]->green_shift,
|
|
&visuals[nvisuals]->green_prec);
|
|
|
|
gdk_visual_decompose_mask (visuals[nvisuals]->blue_mask,
|
|
&visuals[nvisuals]->blue_shift,
|
|
&visuals[nvisuals]->blue_prec);
|
|
}
|
|
else
|
|
{
|
|
visuals[nvisuals]->red_mask = 0;
|
|
visuals[nvisuals]->red_shift = 0;
|
|
visuals[nvisuals]->red_prec = 0;
|
|
|
|
visuals[nvisuals]->green_mask = 0;
|
|
visuals[nvisuals]->green_shift = 0;
|
|
visuals[nvisuals]->green_prec = 0;
|
|
|
|
visuals[nvisuals]->blue_mask = 0;
|
|
visuals[nvisuals]->blue_shift = 0;
|
|
visuals[nvisuals]->blue_prec = 0;
|
|
}
|
|
|
|
nvisuals += 1;
|
|
}
|
|
}
|
|
|
|
if (visual_list)
|
|
XFree (visual_list);
|
|
|
|
for (i = 0; i < nvisuals; i++)
|
|
{
|
|
for (j = i+1; j < nvisuals; j++)
|
|
{
|
|
if (visuals[j]->depth >= visuals[i]->depth)
|
|
{
|
|
if ((visuals[j]->depth == 8) && (visuals[i]->depth == 8))
|
|
{
|
|
if (visuals[j]->type == GDK_VISUAL_PSEUDO_COLOR)
|
|
{
|
|
temp_visual = visuals[j];
|
|
visuals[j] = visuals[i];
|
|
visuals[i] = temp_visual;
|
|
}
|
|
else if ((visuals[i]->type != GDK_VISUAL_PSEUDO_COLOR) &&
|
|
visuals[j]->type > visuals[i]->type)
|
|
{
|
|
temp_visual = visuals[j];
|
|
visuals[j] = visuals[i];
|
|
visuals[i] = temp_visual;
|
|
}
|
|
}
|
|
else if ((visuals[j]->depth > visuals[i]->depth) ||
|
|
((visuals[j]->depth == visuals[i]->depth) &&
|
|
(visuals[j]->type > visuals[i]->type)))
|
|
{
|
|
temp_visual = visuals[j];
|
|
visuals[j] = visuals[i];
|
|
visuals[i] = temp_visual;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < nvisuals; i++)
|
|
{
|
|
if (default_xvisual->visualid == GDK_X11_VISUAL (visuals[i])->xvisual->visualid)
|
|
{
|
|
x11_screen->system_visual = visuals[i];
|
|
GDK_X11_VISUAL (visuals[i])->colormap =
|
|
DefaultColormap (x11_screen->xdisplay, x11_screen->screen_num);
|
|
}
|
|
|
|
/* For now, we only support 8888 ARGB for the "rgba visual".
|
|
* Additional formats (like ABGR) could be added later if they
|
|
* turn up.
|
|
*/
|
|
if (visuals[i]->depth == 32 &&
|
|
(visuals[i]->red_mask == 0xff0000 &&
|
|
visuals[i]->green_mask == 0x00ff00 &&
|
|
visuals[i]->blue_mask == 0x0000ff))
|
|
{
|
|
x11_screen->rgba_visual = visuals[i];
|
|
}
|
|
}
|
|
|
|
#ifdef G_ENABLE_DEBUG
|
|
if (_gdk_debug_flags & GDK_DEBUG_MISC)
|
|
{
|
|
static const gchar *const visual_names[] =
|
|
{
|
|
"static gray",
|
|
"grayscale",
|
|
"static color",
|
|
"pseudo color",
|
|
"true color",
|
|
"direct color",
|
|
};
|
|
|
|
for (i = 0; i < nvisuals; i++)
|
|
g_message ("visual: %s: %d", visual_names[visuals[i]->type], visuals[i]->depth);
|
|
}
|
|
#endif /* G_ENABLE_DEBUG */
|
|
|
|
x11_screen->navailable_depths = 0;
|
|
for (i = 0; i < G_N_ELEMENTS (possible_depths); i++)
|
|
{
|
|
for (j = 0; j < nvisuals; j++)
|
|
{
|
|
if (visuals[j]->depth == possible_depths[i])
|
|
{
|
|
x11_screen->available_depths[x11_screen->navailable_depths++] = visuals[j]->depth;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (x11_screen->navailable_depths == 0)
|
|
g_error ("unable to find a usable depth");
|
|
|
|
x11_screen->navailable_types = 0;
|
|
for (i = 0; i < G_N_ELEMENTS (possible_types); i++)
|
|
{
|
|
for (j = 0; j < nvisuals; j++)
|
|
{
|
|
if (visuals[j]->type == possible_types[i])
|
|
{
|
|
x11_screen->available_types[x11_screen->navailable_types++] = visuals[j]->type;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < nvisuals; i++)
|
|
gdk_visual_add (visuals[i]);
|
|
|
|
if (x11_screen->navailable_types == 0)
|
|
g_error ("unable to find a usable visual type");
|
|
|
|
x11_screen->visuals = visuals;
|
|
x11_screen->nvisuals = nvisuals;
|
|
}
|
|
|
|
gint
|
|
_gdk_x11_screen_visual_get_best_depth (GdkScreen *screen)
|
|
{
|
|
return GDK_X11_SCREEN (screen)->available_depths[0];
|
|
}
|
|
|
|
GdkVisualType
|
|
_gdk_x11_screen_visual_get_best_type (GdkScreen *screen)
|
|
{
|
|
return GDK_X11_SCREEN (screen)->available_types[0];
|
|
}
|
|
|
|
GdkVisual *
|
|
_gdk_x11_screen_get_system_visual (GdkScreen *screen)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
|
|
|
|
return ((GdkVisual *) GDK_X11_SCREEN (screen)->system_visual);
|
|
}
|
|
|
|
GdkVisual*
|
|
_gdk_x11_screen_visual_get_best (GdkScreen *screen)
|
|
{
|
|
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
|
|
|
|
return x11_screen->visuals[0];
|
|
}
|
|
|
|
GdkVisual*
|
|
_gdk_x11_screen_visual_get_best_with_depth (GdkScreen *screen,
|
|
gint depth)
|
|
{
|
|
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
|
|
GdkVisual *return_val;
|
|
int i;
|
|
|
|
return_val = NULL;
|
|
for (i = 0; i < x11_screen->nvisuals; i++)
|
|
if (depth == x11_screen->visuals[i]->depth)
|
|
{
|
|
return_val = x11_screen->visuals[i];
|
|
break;
|
|
}
|
|
|
|
return return_val;
|
|
}
|
|
|
|
GdkVisual*
|
|
_gdk_x11_screen_visual_get_best_with_type (GdkScreen *screen,
|
|
GdkVisualType visual_type)
|
|
{
|
|
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
|
|
GdkVisual *return_val;
|
|
int i;
|
|
|
|
return_val = NULL;
|
|
for (i = 0; i < x11_screen->nvisuals; i++)
|
|
if (visual_type == x11_screen->visuals[i]->type)
|
|
{
|
|
return_val = x11_screen->visuals[i];
|
|
break;
|
|
}
|
|
|
|
return return_val;
|
|
}
|
|
|
|
GdkVisual*
|
|
_gdk_x11_screen_visual_get_best_with_both (GdkScreen *screen,
|
|
gint depth,
|
|
GdkVisualType visual_type)
|
|
{
|
|
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
|
|
GdkVisual *return_val;
|
|
int i;
|
|
|
|
return_val = NULL;
|
|
for (i = 0; i < x11_screen->nvisuals; i++)
|
|
if ((depth == x11_screen->visuals[i]->depth) &&
|
|
(visual_type == x11_screen->visuals[i]->type))
|
|
{
|
|
return_val = x11_screen->visuals[i];
|
|
break;
|
|
}
|
|
|
|
return return_val;
|
|
}
|
|
|
|
void
|
|
_gdk_x11_screen_query_depths (GdkScreen *screen,
|
|
gint **depths,
|
|
gint *count)
|
|
{
|
|
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
|
|
|
|
*count = x11_screen->navailable_depths;
|
|
*depths = x11_screen->available_depths;
|
|
}
|
|
|
|
void
|
|
_gdk_x11_screen_query_visual_types (GdkScreen *screen,
|
|
GdkVisualType **visual_types,
|
|
gint *count)
|
|
{
|
|
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
|
|
|
|
*count = x11_screen->navailable_types;
|
|
*visual_types = x11_screen->available_types;
|
|
}
|
|
|
|
GList *
|
|
_gdk_x11_screen_list_visuals (GdkScreen *screen)
|
|
{
|
|
GList *list;
|
|
GdkX11Screen *x11_screen;
|
|
guint i;
|
|
|
|
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
|
|
x11_screen = GDK_X11_SCREEN (screen);
|
|
|
|
list = NULL;
|
|
|
|
for (i = 0; i < x11_screen->nvisuals; ++i)
|
|
list = g_list_append (list, x11_screen->visuals[i]);
|
|
|
|
return list;
|
|
}
|
|
|
|
/**
|
|
* gdk_x11_screen_lookup_visual:
|
|
* @screen: (type GdkX11Screen): a #GdkScreen.
|
|
* @xvisualid: an X Visual ID.
|
|
*
|
|
* Looks up the #GdkVisual for a particular screen and X Visual ID.
|
|
*
|
|
* Returns: (transfer none): the #GdkVisual (owned by the screen
|
|
* object), or %NULL if the visual ID wasn't found.
|
|
*
|
|
* Since: 2.2
|
|
*/
|
|
GdkVisual *
|
|
gdk_x11_screen_lookup_visual (GdkScreen *screen,
|
|
VisualID xvisualid)
|
|
{
|
|
int i;
|
|
GdkX11Screen *x11_screen;
|
|
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
|
|
x11_screen = GDK_X11_SCREEN (screen);
|
|
|
|
for (i = 0; i < x11_screen->nvisuals; i++)
|
|
if (xvisualid == GDK_X11_VISUAL (x11_screen->visuals[i])->xvisual->visualid)
|
|
return x11_screen->visuals[i];
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
gdk_visual_add (GdkVisual *visual)
|
|
{
|
|
GdkX11Screen *x11_screen = GDK_X11_SCREEN (visual->screen);
|
|
|
|
if (!x11_screen->visual_hash)
|
|
x11_screen->visual_hash = g_hash_table_new ((GHashFunc) gdk_visual_hash,
|
|
(GEqualFunc) gdk_visual_equal);
|
|
|
|
g_hash_table_insert (x11_screen->visual_hash, GDK_X11_VISUAL (visual)->xvisual, visual);
|
|
}
|
|
|
|
static void
|
|
gdk_visual_decompose_mask (gulong mask,
|
|
gint *shift,
|
|
gint *prec)
|
|
{
|
|
*shift = 0;
|
|
*prec = 0;
|
|
|
|
if (mask == 0)
|
|
{
|
|
g_warning ("Mask is 0 in visual. Server bug ?");
|
|
return;
|
|
}
|
|
|
|
while (!(mask & 0x1))
|
|
{
|
|
(*shift)++;
|
|
mask >>= 1;
|
|
}
|
|
|
|
while (mask & 0x1)
|
|
{
|
|
(*prec)++;
|
|
mask >>= 1;
|
|
}
|
|
}
|
|
|
|
static guint
|
|
gdk_visual_hash (Visual *key)
|
|
{
|
|
return key->visualid;
|
|
}
|
|
|
|
static gboolean
|
|
gdk_visual_equal (Visual *a,
|
|
Visual *b)
|
|
{
|
|
return (a->visualid == b->visualid);
|
|
}
|
|
|
|
/**
|
|
* _gdk_visual_get_x11_colormap:
|
|
* @visual: the visual to get the colormap from
|
|
*
|
|
* Gets the colormap to use
|
|
*
|
|
* Returns: the X Colormap to use for new windows using @visual
|
|
**/
|
|
Colormap
|
|
_gdk_visual_get_x11_colormap (GdkVisual *visual)
|
|
{
|
|
GdkX11Visual *x11_visual;
|
|
|
|
g_return_val_if_fail (GDK_IS_VISUAL (visual), None);
|
|
|
|
x11_visual = GDK_X11_VISUAL (visual);
|
|
|
|
if (x11_visual->colormap == None)
|
|
{
|
|
x11_visual->colormap = XCreateColormap (GDK_SCREEN_XDISPLAY (visual->screen),
|
|
GDK_SCREEN_XROOTWIN (visual->screen),
|
|
x11_visual->xvisual,
|
|
AllocNone);
|
|
}
|
|
|
|
return x11_visual->colormap;
|
|
}
|
|
|
|
/**
|
|
* gdk_x11_visual_get_xvisual:
|
|
* @visual: a #GdkVisual.
|
|
*
|
|
* Returns the X visual belonging to a #GdkVisual.
|
|
*
|
|
* Return value: (transfer none): an Xlib <type>Visual*</type>.
|
|
**/
|
|
Visual *
|
|
gdk_x11_visual_get_xvisual (GdkVisual *visual)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_VISUAL (visual), NULL);
|
|
|
|
return GDK_X11_VISUAL (visual)->xvisual;
|
|
}
|