/**
* gdk_visual_get_screen:
* @visual: a #GdkVisual
*
* Gets the screen to which this visual belongs
*
* Returns: (transfer none): the screen to which this visual belongs.
*
* Since: 2.2
*/
GdkScreen *
gdk_visual_get_screen (GdkVisual *visual)
{
g_return_val_if_fail (GDK_IS_VISUAL (visual), NULL);
return visual->screen;
}
/**
* gdk_visual_get_bits_per_rgb:
* @visual: a #GdkVisual
*
* Returns the number of significant bits per red, green and blue value.
*
* Returns: The number of significant bits per color value for @visual.
*
* Since: 2.22
*/
gint
gdk_visual_get_bits_per_rgb (GdkVisual *visual)
{
g_return_val_if_fail (GDK_IS_VISUAL (visual), 0);
return visual->bits_per_rgb;
}
/**
* gdk_visual_get_colormap_size:
* @visual: A #GdkVisual.
*
* Returns the size of a colormap for this visual.
*
* Returns: The size of a colormap that is suitable for @visual.
*
* Since: 2.22
*/
gint
gdk_visual_get_colormap_size (GdkVisual *visual)
{
g_return_val_if_fail (GDK_IS_VISUAL (visual), 0);
return visual->colormap_size;
}
/**
* gdk_visual_get_byte_order:
* @visual: A #GdkVisual.
*
* Returns the byte order of this visual.
*
* Returns: A #GdkByteOrder stating the byte order of @visual.
*
* Since: 2.22
*/
GdkByteOrder
gdk_visual_get_byte_order (GdkVisual *visual)
{
g_return_val_if_fail (GDK_IS_VISUAL (visual), 0);
return visual->byte_order;
}
/**
* gdk_visual_get_depth:
* @visual: A #GdkVisual.
*
* Returns the bit depth of this visual.
*
* Returns: The bit depth of this visual.
*
* Since: 2.22
*/
gint
gdk_visual_get_depth (GdkVisual *visual)
{
g_return_val_if_fail (GDK_IS_VISUAL (visual), 0);
return visual->depth;
}
/**
* gdk_visual_get_visual_type:
* @visual: A #GdkVisual.
*
* Returns the type of visual this is (PseudoColor, TrueColor, etc).
*
* Returns: A #GdkVisualType stating the type of @visual.
*
* Since: 2.22
*/
GdkVisualType
gdk_visual_get_visual_type (GdkVisual *visual)
{
g_return_val_if_fail (GDK_IS_VISUAL (visual), 0);
return visual->type;
}
/* private at present... */
gboolean
_gdk_x11_gl_overlay_get_info (GdkVisual *visual,
GdkGLOverlayInfo *overlay_info)
{
__SOVPropArray *sov_props;
VisualID xvisualid;
int i;
GDK_GL_NOTE_FUNC_PRIVATE ();
g_return_val_if_fail (GDK_IS_VISUAL (visual), FALSE);
g_return_val_if_fail (overlay_info != NULL, FALSE);
/* Get SOV properties. */
#ifdef GDKGLEXT_MULTIHEAD_SUPPORT
sov_props = gdk_gl_overlay_get_sov_props (gdk_visual_get_screen (visual));
#else /* GDKGLEXT_MULTIHEAD_SUPPORT */
sov_props = gdk_gl_overlay_get_sov_props (NULL);
#endif /* GDKGLEXT_MULTIHEAD_SUPPORT */
/* Look up SOV property for the visual. */
xvisualid = GDK_VISUAL_XVISUAL (visual)->visualid;
for (i = 0; i < sov_props->num; i++)
{
if ((VisualID) (sov_props->prop[i].overlay_visual) == xvisualid)
{
overlay_info->visual = visual;
overlay_info->transparent_type = sov_props->prop[i].transparent_type;
overlay_info->value = sov_props->prop[i].value;
overlay_info->layer = sov_props->prop[i].layer;
GDK_GL_NOTE (MISC, g_message (" -- overlay visual"));
GDK_GL_NOTE (MISC, g_print ("transparent_type = %d\n",
overlay_info->transparent_type));
GDK_GL_NOTE (MISC, g_print ("value = %u\n",
overlay_info->value));
GDK_GL_NOTE (MISC, g_print ("layer = %d\n",
overlay_info->layer));
return TRUE;
}
}
/* meaningless */
overlay_info->visual = visual;
overlay_info->transparent_type = GDK_GL_OVERLAY_TRANSPARENT_NONE;
overlay_info->value = 0;
overlay_info->layer = 0;
GDK_GL_NOTE (MISC, g_message (" -- not overlay visual"));
return FALSE;
}
/**
* gdk_visual_get_blue_pixel_details:
* @visual: a #GdkVisual
* @mask: (out) (allow-none): A pointer to a #guint32 to be filled in, or %NULL
* @shift: (out) (allow-none): A pointer to a #gint to be filled in, or %NULL
* @precision: (out) (allow-none): A pointer to a #gint to be filled in, or %NULL
*
* Obtains values that are needed to calculate blue pixel values in TrueColor
* and DirectColor. The “mask” is the significant bits within the pixel.
* The “shift” is the number of bits left we must shift a primary for it
* to be in position (according to the "mask"). Finally, "precision" refers
* to how much precision the pixel value contains for a particular primary.
*
* Since: 2.22
*/
void
gdk_visual_get_blue_pixel_details (GdkVisual *visual,
guint32 *mask,
gint *shift,
gint *precision)
{
g_return_if_fail (GDK_IS_VISUAL (visual));
if (mask)
*mask = visual->blue_mask;
if (shift)
*shift = visual->blue_shift;
if (precision)
*precision = visual->blue_prec;
}
