forked from AuroraMiddleware/gtk
1d838f586c
There are sure regressions but basic stuff seems to be working again after all the API breakage done with comments like "Win32 and Quartz need to be ported still."
351 lines
8.7 KiB
C
351 lines
8.7 KiB
C
/* GDK - The GIMP Drawing Kit
|
|
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
|
|
* Copyright (C) 1998-2002 Tor Lillqvist
|
|
*
|
|
* 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, write to the
|
|
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
* Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
/*
|
|
* 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 <stdlib.h>
|
|
|
|
#include "gdkvisual.h"
|
|
#include "gdkscreen.h" /* gdk_screen_get_default() */
|
|
#include "gdkprivate-win32.h"
|
|
#include "gdkvisualprivate.h"
|
|
|
|
static void gdk_visual_decompose_mask (gulong mask,
|
|
gint *shift,
|
|
gint *prec);
|
|
|
|
static GdkVisual *system_visual = NULL;
|
|
|
|
static gint available_depths[1];
|
|
|
|
static GdkVisualType available_types[1];
|
|
|
|
void
|
|
_gdk_visual_init (void)
|
|
{
|
|
struct
|
|
{
|
|
BITMAPINFOHEADER bi;
|
|
union
|
|
{
|
|
RGBQUAD colors[256];
|
|
DWORD fields[256];
|
|
} u;
|
|
} bmi;
|
|
HBITMAP hbm;
|
|
|
|
const gint rastercaps = GetDeviceCaps (_gdk_display_hdc, RASTERCAPS);
|
|
const int numcolors = GetDeviceCaps (_gdk_display_hdc, NUMCOLORS);
|
|
gint bitspixel = GetDeviceCaps (_gdk_display_hdc, BITSPIXEL);
|
|
gint map_entries = 0;
|
|
|
|
system_visual = g_object_new (GDK_TYPE_VISUAL, NULL);
|
|
system_visual->screen = gdk_screen_get_default();
|
|
|
|
GDK_NOTE (COLORMAP, g_print ("BITSPIXEL=%d NUMCOLORS=%d\n",
|
|
bitspixel, numcolors));
|
|
|
|
if (rastercaps & RC_PALETTE)
|
|
{
|
|
const int sizepalette = GetDeviceCaps (_gdk_display_hdc, SIZEPALETTE);
|
|
gchar *max_colors = getenv ("GDK_WIN32_MAX_COLORS");
|
|
system_visual->type = GDK_VISUAL_PSEUDO_COLOR;
|
|
|
|
GDK_NOTE (COLORMAP, g_print ("SIZEPALETTE=%d\n", sizepalette));
|
|
g_assert (sizepalette == 256);
|
|
|
|
if (max_colors != NULL)
|
|
_gdk_max_colors = atoi (max_colors);
|
|
|
|
map_entries = _gdk_max_colors;
|
|
|
|
if (map_entries >= 16 && map_entries < sizepalette)
|
|
{
|
|
if (map_entries < 32)
|
|
{
|
|
map_entries = 16;
|
|
system_visual->type = GDK_VISUAL_STATIC_COLOR;
|
|
bitspixel = 4;
|
|
}
|
|
else if (map_entries < 64)
|
|
{
|
|
map_entries = 32;
|
|
bitspixel = 5;
|
|
}
|
|
else if (map_entries < 128)
|
|
{
|
|
map_entries = 64;
|
|
bitspixel = 6;
|
|
}
|
|
else if (map_entries < 256)
|
|
{
|
|
map_entries = 128;
|
|
bitspixel = 7;
|
|
}
|
|
else
|
|
g_assert_not_reached ();
|
|
}
|
|
else
|
|
map_entries = sizepalette;
|
|
}
|
|
else if (bitspixel == 1 && numcolors == 16)
|
|
{
|
|
bitspixel = 4;
|
|
system_visual->type = GDK_VISUAL_STATIC_COLOR;
|
|
map_entries = 16;
|
|
}
|
|
else if (bitspixel == 1)
|
|
{
|
|
system_visual->type = GDK_VISUAL_STATIC_GRAY;
|
|
map_entries = 2;
|
|
}
|
|
else if (bitspixel == 4)
|
|
{
|
|
system_visual->type = GDK_VISUAL_STATIC_COLOR;
|
|
map_entries = 16;
|
|
}
|
|
else if (bitspixel == 8)
|
|
{
|
|
system_visual->type = GDK_VISUAL_STATIC_COLOR;
|
|
map_entries = 256;
|
|
}
|
|
else if (bitspixel == 16)
|
|
{
|
|
system_visual->type = GDK_VISUAL_TRUE_COLOR;
|
|
#if 1
|
|
/* This code by Mike Enright,
|
|
* see http://www.users.cts.com/sd/m/menright/display.html
|
|
*/
|
|
memset (&bmi, 0, sizeof (bmi));
|
|
bmi.bi.biSize = sizeof (bmi.bi);
|
|
|
|
hbm = CreateCompatibleBitmap (_gdk_display_hdc, 1, 1);
|
|
GetDIBits (_gdk_display_hdc, hbm, 0, 1, NULL,
|
|
(BITMAPINFO *) &bmi, DIB_RGB_COLORS);
|
|
GetDIBits (_gdk_display_hdc, hbm, 0, 1, NULL,
|
|
(BITMAPINFO *) &bmi, DIB_RGB_COLORS);
|
|
DeleteObject (hbm);
|
|
|
|
if (bmi.bi.biCompression != BI_BITFIELDS)
|
|
{
|
|
/* Either BI_RGB or BI_RLE_something
|
|
* .... or perhaps (!!) something else.
|
|
* Theoretically biCompression might be
|
|
* mmioFourCC('c','v','i','d') but I doubt it.
|
|
*/
|
|
if (bmi.bi.biCompression == BI_RGB)
|
|
{
|
|
/* It's 555 */
|
|
bitspixel = 15;
|
|
system_visual->red_mask = 0x00007C00;
|
|
system_visual->green_mask = 0x000003E0;
|
|
system_visual->blue_mask = 0x0000001F;
|
|
}
|
|
else
|
|
{
|
|
g_assert_not_reached ();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
DWORD allmasks =
|
|
bmi.u.fields[0] | bmi.u.fields[1] | bmi.u.fields[2];
|
|
int k = 0;
|
|
while (allmasks)
|
|
{
|
|
if (allmasks&1)
|
|
k++;
|
|
allmasks/=2;
|
|
}
|
|
bitspixel = k;
|
|
system_visual->red_mask = bmi.u.fields[0];
|
|
system_visual->green_mask = bmi.u.fields[1];
|
|
system_visual->blue_mask = bmi.u.fields[2];
|
|
}
|
|
#else
|
|
/* Old, incorrect (but still working) code. */
|
|
#if 0
|
|
system_visual->red_mask = 0x0000F800;
|
|
system_visual->green_mask = 0x000007E0;
|
|
system_visual->blue_mask = 0x0000001F;
|
|
#else
|
|
system_visual->red_mask = 0x00007C00;
|
|
system_visual->green_mask = 0x000003E0;
|
|
system_visual->blue_mask = 0x0000001F;
|
|
#endif
|
|
#endif
|
|
}
|
|
else if (bitspixel == 24 || bitspixel == 32)
|
|
{
|
|
bitspixel = 24;
|
|
system_visual->type = GDK_VISUAL_TRUE_COLOR;
|
|
system_visual->red_mask = 0x00FF0000;
|
|
system_visual->green_mask = 0x0000FF00;
|
|
system_visual->blue_mask = 0x000000FF;
|
|
}
|
|
else
|
|
g_error ("_gdk_visual_init: unsupported BITSPIXEL: %d\n", bitspixel);
|
|
|
|
system_visual->depth = bitspixel;
|
|
system_visual->byte_order = GDK_LSB_FIRST;
|
|
system_visual->bits_per_rgb = 42; /* Not used? */
|
|
|
|
if ((system_visual->type == GDK_VISUAL_TRUE_COLOR) ||
|
|
(system_visual->type == GDK_VISUAL_DIRECT_COLOR))
|
|
{
|
|
gdk_visual_decompose_mask (system_visual->red_mask,
|
|
&system_visual->red_shift,
|
|
&system_visual->red_prec);
|
|
|
|
gdk_visual_decompose_mask (system_visual->green_mask,
|
|
&system_visual->green_shift,
|
|
&system_visual->green_prec);
|
|
|
|
gdk_visual_decompose_mask (system_visual->blue_mask,
|
|
&system_visual->blue_shift,
|
|
&system_visual->blue_prec);
|
|
map_entries = 1 << (MAX (system_visual->red_prec,
|
|
MAX (system_visual->green_prec,
|
|
system_visual->blue_prec)));
|
|
}
|
|
else
|
|
{
|
|
system_visual->red_mask = 0;
|
|
system_visual->red_shift = 0;
|
|
system_visual->red_prec = 0;
|
|
|
|
system_visual->green_mask = 0;
|
|
system_visual->green_shift = 0;
|
|
system_visual->green_prec = 0;
|
|
|
|
system_visual->blue_mask = 0;
|
|
system_visual->blue_shift = 0;
|
|
system_visual->blue_prec = 0;
|
|
}
|
|
system_visual->colormap_size = map_entries;
|
|
|
|
available_depths[0] = system_visual->depth;
|
|
available_types[0] = system_visual->type;
|
|
}
|
|
|
|
gint
|
|
_gdk_win32_screen_visual_get_best_depth (GdkScreen *screen)
|
|
{
|
|
return available_depths[0];
|
|
}
|
|
|
|
GdkVisualType
|
|
_gdk_win32_screen_visual_get_best_type (GdkScreen *screen)
|
|
{
|
|
return available_types[0];
|
|
}
|
|
|
|
GdkVisual*
|
|
_gdk_win32_screen_get_system_visual (GdkScreen *screen)
|
|
{
|
|
return system_visual;
|
|
}
|
|
|
|
GdkVisual*
|
|
_gdk_win32_screen_visual_get_best (GdkScreen *screen)
|
|
{
|
|
return ((GdkVisual*) system_visual);
|
|
}
|
|
|
|
GdkVisual*
|
|
_gdk_win32_screen_visual_get_best_with_depth (GdkScreen *screen, gint depth)
|
|
{
|
|
if (depth == system_visual->depth)
|
|
return (GdkVisual*) system_visual;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
GdkVisual*
|
|
_gdk_win32_screen_visual_get_best_with_type (GdkScreen *screen, GdkVisualType visual_type)
|
|
{
|
|
if (visual_type == system_visual->type)
|
|
return system_visual;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
GdkVisual*
|
|
_gdk_win32_screen_visual_get_best_with_both (GdkScreen *screen,
|
|
gint depth,
|
|
GdkVisualType visual_type)
|
|
{
|
|
if ((depth == system_visual->depth) && (visual_type == system_visual->type))
|
|
return system_visual;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
_gdk_win32_screen_query_depths (GdkScreen *screen,
|
|
gint **depths,
|
|
gint *count)
|
|
{
|
|
*count = 1;
|
|
*depths = available_depths;
|
|
}
|
|
|
|
void
|
|
_gdk_win32_screen_query_visual_types (GdkScreen *screen,
|
|
GdkVisualType **visual_types,
|
|
gint *count)
|
|
{
|
|
*count = 1;
|
|
*visual_types = available_types;
|
|
}
|
|
|
|
GList*
|
|
_gdk_win32_screen_list_visuals (GdkScreen *screen)
|
|
{
|
|
return g_list_append (NULL, (gpointer) system_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;
|
|
}
|
|
}
|