gtk2/gdk/quartz/gdkvisual-quartz.c
Paolo Borelli 70d689cddd gdk: calculate pixel color shift and precision lazily
This gets rid of the decompose_mask utility entirely and simplifies
backend code.
2016-02-27 12:27:54 +01:00

217 lines
4.8 KiB
C

/* gdkvisual-quartz.c
*
* Copyright (C) 2005 Imendio AB
*
* 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/>.
*/
#include "config.h"
#include "gdkvisualprivate.h"
#include "gdkquartzvisual.h"
#include "gdkprivate-quartz.h"
struct _GdkQuartzVisual
{
GdkVisual visual;
};
struct _GdkQuartzVisualClass
{
GdkVisualClass visual_class;
};
static GdkVisual *system_visual;
static GdkVisual *rgba_visual;
static GdkVisual *gray_visual;
static GdkVisual *
create_standard_visual (GdkScreen *screen,
gint depth)
{
GdkVisual *visual = g_object_new (GDK_TYPE_QUARTZ_VISUAL, NULL);
visual->screen = screen;
visual->depth = depth;
visual->byte_order = GDK_MSB_FIRST; /* FIXME: Should this be different on intel macs? */
visual->colormap_size = 0;
visual->type = GDK_VISUAL_TRUE_COLOR;
visual->red_mask = 0xff0000;
visual->green_mask = 0xff00;
visual->blue_mask = 0xff;
return visual;
}
static GdkVisual *
create_gray_visual (GdkScreen *screen)
{
GdkVisual *visual = g_object_new (GDK_TYPE_QUARTZ_VISUAL, NULL);
visual->screen = screen;
visual->depth = 1;
visual->byte_order = GDK_MSB_FIRST;
visual->colormap_size = 0;
visual->type = GDK_VISUAL_STATIC_GRAY;
return visual;
}
G_DEFINE_TYPE (GdkQuartzVisual, gdk_quartz_visual, GDK_TYPE_VISUAL)
static void
gdk_quartz_visual_init (GdkQuartzVisual *quartz_visual)
{
}
static void
gdk_quartz_visual_class_init (GdkQuartzVisualClass *class)
{
}
/* We prefer the system visual for now ... */
gint
_gdk_quartz_screen_visual_get_best_depth (GdkScreen *screen)
{
return system_visual->depth;
}
GdkVisualType
_gdk_quartz_screen_visual_get_best_type (GdkScreen *screen)
{
return system_visual->type;
}
GdkVisual *
_gdk_quartz_screen_get_rgba_visual (GdkScreen *screen)
{
return rgba_visual;
}
GdkVisual*
_gdk_quartz_screen_get_system_visual (GdkScreen *screen)
{
return system_visual;
}
GdkVisual*
_gdk_quartz_screen_visual_get_best (GdkScreen *screen)
{
return system_visual;
}
GdkVisual*
_gdk_quartz_screen_visual_get_best_with_depth (GdkScreen *screen,
gint depth)
{
GdkVisual *visual = NULL;
switch (depth)
{
case 32:
visual = rgba_visual;
break;
case 24:
visual = system_visual;
break;
case 1:
visual = gray_visual;
break;
default:
visual = NULL;
}
return visual;
}
GdkVisual*
_gdk_quartz_screen_visual_get_best_with_type (GdkScreen *screen,
GdkVisualType visual_type)
{
if (system_visual->type == visual_type)
return system_visual;
else if (gray_visual->type == visual_type)
return gray_visual;
return NULL;
}
GdkVisual*
_gdk_quartz_screen_visual_get_best_with_both (GdkScreen *screen,
gint depth,
GdkVisualType visual_type)
{
if (system_visual->depth == depth
&& system_visual->type == visual_type)
return system_visual;
else if (rgba_visual->depth == depth
&& rgba_visual->type == visual_type)
return rgba_visual;
else if (gray_visual->depth == depth
&& gray_visual->type == visual_type)
return gray_visual;
return NULL;
}
/* For these, we also prefer the system visual */
void
_gdk_quartz_screen_query_depths (GdkScreen *screen,
gint **depths,
gint *count)
{
*count = 1;
*depths = &system_visual->depth;
}
void
_gdk_quartz_screen_query_visual_types (GdkScreen *screen,
GdkVisualType **visual_types,
gint *count)
{
*count = 1;
*visual_types = &system_visual->type;
}
void
_gdk_quartz_screen_init_visuals (GdkScreen *screen)
{
system_visual = create_standard_visual (screen, 24);
rgba_visual = create_standard_visual (screen, 32);
gray_visual = create_gray_visual (screen);
}
GList*
_gdk_quartz_screen_list_visuals (GdkScreen *screen)
{
GList *visuals = NULL;
visuals = g_list_append (visuals, system_visual);
visuals = g_list_append (visuals, rgba_visual);
visuals = g_list_append (visuals, gray_visual);
return visuals;
}