forked from AuroraMiddleware/gtk
165 lines
4.2 KiB
C
165 lines
4.2 KiB
C
/* GDK - The GIMP Drawing Kit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "gdkvisual.h"
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#include "gdkprivate-fb.h"
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#include "gdkinternals.h"
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static GdkVisual *system_visual = NULL;
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void
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gdk_visual_init (void)
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{
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system_visual = g_new0 (GdkVisual, 1);
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system_visual->depth = system_visual->bits_per_rgb = gdk_display->modeinfo.bits_per_pixel;
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system_visual->byte_order = GDK_LSB_FIRST;
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system_visual->colormap_size = 0;
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switch (gdk_display->sinfo.visual)
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{
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case FB_VISUAL_PSEUDOCOLOR:
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system_visual->colormap_size = 1 << gdk_display->modeinfo.bits_per_pixel;
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system_visual->type = GDK_VISUAL_PSEUDO_COLOR;
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break;
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case FB_VISUAL_DIRECTCOLOR:
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system_visual->colormap_size = 1 << gdk_display->modeinfo.bits_per_pixel;
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system_visual->type = GDK_VISUAL_DIRECT_COLOR;
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/* Fall through */
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case FB_VISUAL_TRUECOLOR:
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if (gdk_display->sinfo.visual == FB_VISUAL_TRUECOLOR)
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system_visual->type = GDK_VISUAL_TRUE_COLOR;
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system_visual->red_prec = gdk_display->modeinfo.red.length;
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system_visual->red_shift = gdk_display->modeinfo.red.offset;
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system_visual->red_mask = ((1 << (system_visual->red_prec)) - 1) << system_visual->red_shift;
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system_visual->green_prec = gdk_display->modeinfo.green.length;
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system_visual->green_shift = gdk_display->modeinfo.green.offset;
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system_visual->green_mask = ((1 << (system_visual->green_prec)) - 1) << system_visual->green_shift;
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system_visual->blue_prec = gdk_display->modeinfo.blue.length;
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system_visual->blue_shift = gdk_display->modeinfo.blue.offset;
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system_visual->blue_mask = ((1 << (system_visual->blue_prec)) - 1) << system_visual->blue_shift;
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break;
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case FB_VISUAL_STATIC_PSEUDOCOLOR:
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system_visual->type = GDK_VISUAL_STATIC_COLOR;
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system_visual->colormap_size = 1 << gdk_display->modeinfo.bits_per_pixel;
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break;
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default:
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g_assert_not_reached ();
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break;
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}
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}
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GdkVisual*
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gdk_visual_ref (GdkVisual *visual)
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{
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return visual;
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}
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void
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gdk_visual_unref (GdkVisual *visual)
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{
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}
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gint
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gdk_visual_get_best_depth (void)
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{
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return system_visual->depth;
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}
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GdkVisualType
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gdk_visual_get_best_type (void)
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{
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return system_visual->type;
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}
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GdkVisual*
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gdk_visual_get_system (void)
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{
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return system_visual;
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}
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GdkVisual*
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gdk_visual_get_best (void)
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{
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return system_visual;
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}
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GdkVisual*
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gdk_visual_get_best_with_depth (gint depth)
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{
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if (system_visual->depth != depth)
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return NULL;
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return system_visual;
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}
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GdkVisual*
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gdk_visual_get_best_with_type (GdkVisualType visual_type)
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{
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if (system_visual->type != visual_type)
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return NULL;
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return system_visual;
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}
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GdkVisual*
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gdk_visual_get_best_with_both (gint depth,
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GdkVisualType visual_type)
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{
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if (system_visual->depth != depth)
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return NULL;
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if (system_visual->type != visual_type)
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return NULL;
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return system_visual;
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}
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void
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gdk_query_depths (gint **depths,
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gint *count)
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{
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*count = 1;
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*depths = &system_visual->depth;
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}
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void
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gdk_query_visual_types (GdkVisualType **visual_types,
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gint *count)
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{
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*count = 1;
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*visual_types = &system_visual->type;
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}
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GList*
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gdk_list_visuals (void)
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{
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return g_list_append (NULL, gdk_visual_get_system ());
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}
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