/* GDK - The GIMP Drawing Kit
- * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ * gdkvisual.c
+ *
+ * Copyright 2001 Sun Microsystems Inc.
+ *
+ * Erwann Chenede <erwann.chenede@sun.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
*/
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include "gdk.h"
-#include "gdkprivate.h"
-
-
-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 gint gdk_visual_compare (Visual *a,
- Visual *b);
-
-
-static GdkVisualPrivate *system_visual;
-static GdkVisualPrivate *visuals;
-static gint nvisuals;
-
-static gint available_depths[4];
-static gint navailable_depths;
-
-static GdkVisualType available_types[6];
-static gint navailable_types;
-
-static gchar* visual_names[] =
-{
- "static gray",
- "grayscale",
- "static color",
- "pseudo color",
- "true color",
- "direct color",
-};
-
-static GHashTable *visual_hash = NULL;
-
-void
-gdk_visual_init ()
-{
- static gint possible_depths[6] = { 32, 24, 16, 15, 8, 1 };
- static 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
- };
-
- static gint npossible_depths = 6;
- static gint npossible_types = 6;
-
- XVisualInfo *visual_list;
- XVisualInfo visual_template;
- GdkVisualPrivate temp_visual;
- Visual *default_xvisual;
- int nxvisuals;
- int i, j;
-
- visual_template.screen = gdk_screen;
- visual_list = XGetVisualInfo (gdk_display, VisualScreenMask, &visual_template, &nxvisuals);
- visuals = g_new (GdkVisualPrivate, nxvisuals);
-
- default_xvisual = DefaultVisual (gdk_display, gdk_screen);
-
- 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].visual.type = GDK_VISUAL_STATIC_GRAY;
- break;
- case GrayScale:
- visuals[nvisuals].visual.type = GDK_VISUAL_GRAYSCALE;
- break;
- case StaticColor:
- visuals[nvisuals].visual.type = GDK_VISUAL_STATIC_COLOR;
- break;
- case PseudoColor:
- visuals[nvisuals].visual.type = GDK_VISUAL_PSEUDO_COLOR;
- break;
- case TrueColor:
- visuals[nvisuals].visual.type = GDK_VISUAL_TRUE_COLOR;
- break;
- case DirectColor:
- visuals[nvisuals].visual.type = GDK_VISUAL_DIRECT_COLOR;
- break;
- }
-
- visuals[nvisuals].visual.depth = visual_list[i].depth;
- visuals[nvisuals].visual.byte_order =
- (ImageByteOrder(gdk_display) == LSBFirst) ?
- GDK_LSB_FIRST : GDK_MSB_FIRST;
- visuals[nvisuals].visual.red_mask = visual_list[i].red_mask;
- visuals[nvisuals].visual.green_mask = visual_list[i].green_mask;
- visuals[nvisuals].visual.blue_mask = visual_list[i].blue_mask;
- visuals[nvisuals].visual.colormap_size = visual_list[i].colormap_size;
- visuals[nvisuals].visual.bits_per_rgb = visual_list[i].bits_per_rgb;
- visuals[nvisuals].xvisual = visual_list[i].visual;
-
- if ((visuals[nvisuals].visual.type == GDK_VISUAL_TRUE_COLOR) ||
- (visuals[nvisuals].visual.type == GDK_VISUAL_DIRECT_COLOR))
- {
- gdk_visual_decompose_mask (visuals[nvisuals].visual.red_mask,
- &visuals[nvisuals].visual.red_shift,
- &visuals[nvisuals].visual.red_prec);
-
- gdk_visual_decompose_mask (visuals[nvisuals].visual.green_mask,
- &visuals[nvisuals].visual.green_shift,
- &visuals[nvisuals].visual.green_prec);
-
- gdk_visual_decompose_mask (visuals[nvisuals].visual.blue_mask,
- &visuals[nvisuals].visual.blue_shift,
- &visuals[nvisuals].visual.blue_prec);
- }
- else
- {
- visuals[nvisuals].visual.red_mask = 0;
- visuals[nvisuals].visual.red_shift = 0;
- visuals[nvisuals].visual.red_prec = 0;
-
- visuals[nvisuals].visual.green_mask = 0;
- visuals[nvisuals].visual.green_shift = 0;
- visuals[nvisuals].visual.green_prec = 0;
-
- visuals[nvisuals].visual.blue_mask = 0;
- visuals[nvisuals].visual.blue_shift = 0;
- visuals[nvisuals].visual.blue_prec = 0;
- }
-
- nvisuals += 1;
- }
- }
-
- XFree (visual_list);
-
- for (i = 0; i < nvisuals; i++)
- {
- for (j = i+1; j < nvisuals; j++)
- {
- if (visuals[j].visual.depth >= visuals[i].visual.depth)
- {
- if ((visuals[j].visual.depth == 8) && (visuals[i].visual.depth == 8))
- {
- if (visuals[j].visual.type == GDK_VISUAL_PSEUDO_COLOR)
- {
- temp_visual = visuals[j];
- visuals[j] = visuals[i];
- visuals[i] = temp_visual;
- }
- else if ((visuals[i].visual.type != GDK_VISUAL_PSEUDO_COLOR) &&
- visuals[j].visual.type > visuals[i].visual.type)
- {
- temp_visual = visuals[j];
- visuals[j] = visuals[i];
- visuals[i] = temp_visual;
- }
- }
- else if ((visuals[j].visual.depth > visuals[i].visual.depth) ||
- ((visuals[j].visual.depth == visuals[i].visual.depth) &&
- (visuals[j].visual.type > visuals[i].visual.type)))
- {
- temp_visual = visuals[j];
- visuals[j] = visuals[i];
- visuals[i] = temp_visual;
- }
- }
- }
- }
-
- for (i = 0; i < nvisuals; i++)
- if (default_xvisual->visualid == visuals[i].xvisual->visualid)
- {
- system_visual = &visuals[i];
- break;
- }
-
-#ifdef G_ENABLE_DEBUG
- if (gdk_debug_flags & GDK_DEBUG_MISC)
- for (i = 0; i < nvisuals; i++)
- g_print ("Gdk: visual: %s: %d\n",
- visual_names[visuals[i].visual.type],
- visuals[i].visual.depth);
-#endif /* G_ENABLE_DEBUG */
-
- navailable_depths = 0;
- for (i = 0; i < npossible_depths; i++)
- {
- for (j = 0; j < nvisuals; j++)
- {
- if (visuals[j].visual.depth == possible_depths[i])
- {
- available_depths[navailable_depths++] = visuals[j].visual.depth;
- break;
- }
- }
- }
-
- if (navailable_depths == 0)
- g_error ("unable to find a usable depth");
-
- navailable_types = 0;
- for (i = 0; i < npossible_types; i++)
- {
- for (j = 0; j < nvisuals; j++)
- {
- if (visuals[j].visual.type == possible_types[i])
- {
- available_types[navailable_types++] = visuals[j].visual.type;
- break;
- }
- }
- }
-
- for (i = 0; i < nvisuals; i++)
- gdk_visual_add ((GdkVisual*) &visuals[i]);
-
- if (npossible_types == 0)
- g_error ("unable to find a usable visual type");
-}
-
-GdkVisual*
-gdk_visual_ref (GdkVisual *visual)
-{
- return visual;
-}
-
-void
-gdk_visual_unref (GdkVisual *visual)
-{
- return;
-}
-
-gint
-gdk_visual_get_best_depth ()
-{
- return available_depths[0];
-}
-
-GdkVisualType
-gdk_visual_get_best_type ()
-{
- return available_types[0];
-}
-
-GdkVisual*
-gdk_visual_get_system ()
-{
- return ((GdkVisual*) system_visual);
-}
-
-GdkVisual*
-gdk_visual_get_best ()
-{
- return ((GdkVisual*) &(visuals[0]));
-}
-
-GdkVisual*
-gdk_visual_get_best_with_depth (gint depth)
-{
- GdkVisual *return_val;
- int i;
-
- return_val = NULL;
- for (i = 0; i < nvisuals; i++)
- if (depth == visuals[i].visual.depth)
- {
- return_val = (GdkVisual*) &(visuals[i]);
- break;
- }
-
- return return_val;
-}
-
-GdkVisual*
-gdk_visual_get_best_with_type (GdkVisualType visual_type)
-{
- GdkVisual *return_val;
- int i;
-
- return_val = NULL;
- for (i = 0; i < nvisuals; i++)
- if (visual_type == visuals[i].visual.type)
- {
- return_val = (GdkVisual*) &(visuals[i]);
- break;
- }
-
- return return_val;
-}
-
-GdkVisual*
-gdk_visual_get_best_with_both (gint depth,
- GdkVisualType visual_type)
-{
- GdkVisual *return_val;
- int i;
-
- return_val = NULL;
- for (i = 0; i < nvisuals; i++)
- if ((depth == visuals[i].visual.depth) &&
- (visual_type == visuals[i].visual.type))
- {
- return_val = (GdkVisual*) &(visuals[i]);
- break;
- }
-
- return return_val;
-}
-
-void
-gdk_query_depths (gint **depths,
- gint *count)
-{
- *count = navailable_depths;
- *depths = available_depths;
-}
-
-void
-gdk_query_visual_types (GdkVisualType **visual_types,
- gint *count)
-{
- *count = navailable_types;
- *visual_types = available_types;
-}
+#include <config.h>
+#include "gdkvisual.h"
+#include "gdkscreen.h"
+#include "gdkalias.h"
+
+/**
+ * gdk_list_visuals:
+ *
+ * Lists the available visuals for the default screen.
+ * (See gdk_screen_list_visuals())
+ * A visual describes a hardware image data format.
+ * For example, a visual might support 24-bit color, or 8-bit color,
+ * and might expect pixels to be in a certain format.
+ *
+ * Call g_list_free() on the return value when you're finished with it.
+ *
+ * Return value: a list of visuals; the list must be freed, but not its contents
+ **/
GList*
gdk_list_visuals (void)
{
- GList *list;
- guint i;
-
- list = NULL;
- for (i = 0; i < nvisuals; ++i)
- list = g_list_append (list, (gpointer) &visuals[i]);
-
- return list;
-}
-
-
-GdkVisual*
-gdk_visual_lookup (Visual *xvisual)
-{
- GdkVisual *visual;
-
- if (!visual_hash)
- return NULL;
-
- visual = g_hash_table_lookup (visual_hash, xvisual);
- return visual;
+ return gdk_screen_list_visuals (gdk_screen_get_default ());
}
+/**
+ * gdk_visual_get_system:
+ *
+ * Get the system'sdefault visual for the default GDK screen.
+ * This is the visual for the root window of the display.
+ * The return value should not be freed.
+ *
+ * Return value: system visual
+ **/
GdkVisual*
-gdkx_visual_get (VisualID xvisualid)
+gdk_visual_get_system (void)
{
- int i;
-
- for (i = 0; i < nvisuals; i++)
- if (xvisualid == visuals[i].xvisual->visualid)
- return (GdkVisual*) &visuals[i];
-
- return NULL;
+ return gdk_screen_get_system_visual (gdk_screen_get_default());
}
-
-static void
-gdk_visual_add (GdkVisual *visual)
-{
- GdkVisualPrivate *private;
-
- if (!visual_hash)
- visual_hash = g_hash_table_new ((GHashFunc) gdk_visual_hash,
- (GCompareFunc) gdk_visual_compare);
-
- private = (GdkVisualPrivate*) visual;
-
- g_hash_table_insert (visual_hash, private->xvisual, visual);
-}
-
-static void
-gdk_visual_decompose_mask (gulong mask,
- gint *shift,
- gint *prec)
-{
- *shift = 0;
- *prec = 0;
-
- while (!(mask & 0x1))
- {
- (*shift)++;
- mask >>= 1;
- }
-
- while (mask & 0x1)
- {
- (*prec)++;
- mask >>= 1;
- }
-}
-
-static guint
-gdk_visual_hash (Visual *key)
-{
- return key->visualid;
-}
-
-static gint
-gdk_visual_compare (Visual *a,
- Visual *b)
-{
- return (a->visualid == b->visualid);
-}
+#define __GDK_VISUAL_C__
+#include "gdkaliasdef.c"
projects / ~andy / gtk / blobdiff