forked from AuroraMiddleware/gtk
4a0d3d7acc
Remove a boatload of "or %NULL" from nullable parameters and return values. gi-docgen generates suitable text from the annotation that we don't need to duplicate. This adds a few missing nullable annotations too.
323 lines
9.3 KiB
C
323 lines
9.3 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 "gdkprivate-x11.h"
|
|
#include "gdkscreen-x11.h"
|
|
#include "gdkvisual-x11.h"
|
|
#include "gdkglcontext-x11.h"
|
|
|
|
#include <X11/Xlib.h>
|
|
#include <X11/Xutil.h>
|
|
|
|
struct _GdkX11VisualClass
|
|
{
|
|
GObjectClass parent_class;
|
|
};
|
|
|
|
G_DEFINE_TYPE (GdkX11Visual, gdk_x11_visual, G_TYPE_OBJECT)
|
|
|
|
static void
|
|
gdk_x11_visual_init (GdkX11Visual *x11_visual)
|
|
{
|
|
}
|
|
|
|
static void
|
|
gdk_x11_visual_class_init (GdkX11VisualClass *class)
|
|
{
|
|
}
|
|
|
|
void
|
|
_gdk_x11_screen_init_visuals (GdkX11Screen *x11_screen,
|
|
gboolean setup_display)
|
|
{
|
|
static const int 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
|
|
};
|
|
|
|
XVisualInfo *visual_list;
|
|
XVisualInfo visual_template;
|
|
GdkX11Visual *temp_visual;
|
|
Visual *default_xvisual;
|
|
GdkX11Visual **visuals;
|
|
int nxvisuals;
|
|
int nvisuals;
|
|
int i, j;
|
|
|
|
nxvisuals = 0;
|
|
visual_template.screen = x11_screen->screen_num;
|
|
visual_list = XGetVisualInfo (x11_screen->xdisplay, VisualScreenMask, &visual_template, &nxvisuals);
|
|
|
|
visuals = g_new (GdkX11Visual *, 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++)
|
|
{
|
|
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;
|
|
default:
|
|
g_warn_if_reached ();
|
|
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))
|
|
{
|
|
visuals[nvisuals]->red_mask = 0;
|
|
visuals[nvisuals]->green_mask = 0;
|
|
visuals[nvisuals]->blue_mask = 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];
|
|
|
|
/* For now, we only support 8888 ARGB for the "rgba visual".
|
|
* Additional formats (like ABGR) could be added later if they
|
|
* turn up.
|
|
*/
|
|
if (x11_screen->rgba_visual == NULL &&
|
|
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_DISPLAY_DEBUG_CHECK (GDK_SCREEN_DISPLAY (x11_screen), MISC))
|
|
{
|
|
static const char *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;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (x11_screen->navailable_types == 0)
|
|
g_error ("unable to find a usable visual type");
|
|
|
|
x11_screen->visuals = visuals;
|
|
x11_screen->nvisuals = nvisuals;
|
|
|
|
/* If GL is available we want to pick better default/rgba visuals,
|
|
* as we care about GLX details such as alpha/depth/stencil depth,
|
|
* stereo and double buffering
|
|
*/
|
|
gdk_x11_screen_update_visuals_for_glx (x11_screen);
|
|
|
|
if (setup_display)
|
|
{
|
|
if (x11_screen->rgba_visual)
|
|
{
|
|
Visual *xvisual = GDK_X11_VISUAL (x11_screen->rgba_visual)->xvisual;
|
|
Colormap colormap;
|
|
|
|
colormap = XCreateColormap (x11_screen->xdisplay,
|
|
RootWindow (x11_screen->xdisplay, x11_screen->screen_num),
|
|
xvisual,
|
|
AllocNone);
|
|
gdk_display_setup_window_visual (GDK_SCREEN_DISPLAY (x11_screen),
|
|
x11_screen->rgba_visual->depth,
|
|
GDK_X11_VISUAL (x11_screen->rgba_visual)->xvisual,
|
|
colormap,
|
|
TRUE);
|
|
}
|
|
else
|
|
{
|
|
gdk_display_setup_window_visual (GDK_SCREEN_DISPLAY (x11_screen),
|
|
DefaultDepth (x11_screen->xdisplay, x11_screen->screen_num),
|
|
DefaultVisual (x11_screen->xdisplay, x11_screen->screen_num),
|
|
DefaultColormap (x11_screen->xdisplay, x11_screen->screen_num),
|
|
FALSE);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*< private >
|
|
* gdk_x11_screen_lookup_visual:
|
|
* @screen: a #GdkX11Screen.
|
|
* @xvisualid: an X Visual ID.
|
|
*
|
|
* Looks up the #GdkVisual for a particular screen and X Visual ID.
|
|
*
|
|
* Returns: (transfer none) (nullable) (type GdkX11Visual): the #GdkVisual
|
|
*/
|
|
GdkX11Visual *
|
|
gdk_x11_screen_lookup_visual (GdkX11Screen *x11_screen,
|
|
VisualID xvisualid)
|
|
{
|
|
int i;
|
|
|
|
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;
|
|
}
|
|
|
|
/*< private >
|
|
* gdk_x11_visual_get_xvisual:
|
|
* @visual: a #GdkX11Visual.
|
|
*
|
|
* Returns the X visual belonging to a #GdkX11Visual.
|
|
*
|
|
* Returns: (transfer none): an Xlib Visual*.
|
|
**/
|
|
Visual *
|
|
gdk_x11_visual_get_xvisual (GdkX11Visual *visual)
|
|
{
|
|
g_return_val_if_fail (GDK_IS_X11_VISUAL (visual), NULL);
|
|
|
|
return GDK_X11_VISUAL (visual)->xvisual;
|
|
}
|