callisto-debian/gtk3
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
b5f3117801703f8eeecf115bb2c2d7e463750afd
gtk3/gdk/win32/gdkscreen-win32.c
Chun-wei Fan d3bdd384a1 gdkscreen-win32.c: Also define _WIN32_WINNT 
As in the last commit on gdkdisplay-win32.c, we need to define that to be
0x0600 (Vista) or later so that the items needed in the Windows headers be
activated.

See: https://bugzilla.gnome.org/show_bug.cgi?id=768081#c62
2016-11-11 21:03:46 +08:00

630 lines
18 KiB
C
Raw Blame History

/* GDK - The GIMP Drawing Kit
* Copyright (C) 2002 Hans Breuer
*
* 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"
#define _WIN32_WINNT 0x0600
#include "gdk.h"
#include "gdkprivate-win32.h"
#include "gdkscreenprivate.h"
#include "gdkwin32screen.h"
#include "gdkdisplayprivate.h"
#include "gdkvisualprivate.h"
#include "gdkdisplay-win32.h"
#include "gdkmonitor-win32.h"
#include <dwmapi.h>
struct _GdkWin32Screen
{
GdkScreen parent_instance;
GdkVisual *system_visual;
GdkVisual *rgba_visual;
gint available_visual_depths[1];
GdkVisualType available_visual_types[1];
GdkWindow *root_window;
gint always_composited : 1;
};
struct _GdkWin32ScreenClass
{
GdkScreenClass parent_class;
};
G_DEFINE_TYPE (GdkWin32Screen, gdk_win32_screen, GDK_TYPE_SCREEN)
static gint
get_color_precision (gulong mask)
{
gint p = 0;
while (mask & 0x1)
{
p++;
mask >>= 1;
}
return p;
}
static GdkVisual *
init_visual (GdkScreen *screen,
gboolean is_rgba)
{
GdkVisual *visual;
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;
visual = g_object_new (GDK_TYPE_VISUAL, NULL);
visual->screen = screen;
if (rastercaps & RC_PALETTE)
{
const int sizepalette = GetDeviceCaps (_gdk_display_hdc, SIZEPALETTE);
gchar *max_colors = getenv ("GDK_WIN32_MAX_COLORS");
visual->type = GDK_VISUAL_PSEUDO_COLOR;
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;
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;
visual->type = GDK_VISUAL_STATIC_COLOR;
map_entries = 16;
}
else if (bitspixel == 1)
{
visual->type = GDK_VISUAL_STATIC_GRAY;
map_entries = 2;
}
else if (bitspixel == 4)
{
visual->type = GDK_VISUAL_STATIC_COLOR;
map_entries = 16;
}
else if (bitspixel == 8)
{
visual->type = GDK_VISUAL_STATIC_COLOR;
map_entries = 256;
}
else if (bitspixel == 16)
{
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;
visual->red_mask = 0x00007C00;
visual->green_mask = 0x000003E0;
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;
visual->red_mask = bmi.u.fields[0];
visual->green_mask = bmi.u.fields[1];
visual->blue_mask = bmi.u.fields[2];
}
#else
/* Old, incorrect (but still working) code. */
#if 0
visual->red_mask = 0x0000F800;
visual->green_mask = 0x000007E0;
visual->blue_mask = 0x0000001F;
#else
visual->red_mask = 0x00007C00;
visual->green_mask = 0x000003E0;
visual->blue_mask = 0x0000001F;
#endif
#endif
}
else if (bitspixel == 24 || bitspixel == 32)
{
if (!is_rgba)
bitspixel = 24;
visual->type = GDK_VISUAL_TRUE_COLOR;
visual->red_mask = 0x00FF0000;
visual->green_mask = 0x0000FF00;
visual->blue_mask = 0x000000FF;
}
else
g_error ("_gdk_visual_init: unsupported BITSPIXEL: %d\n", bitspixel);
visual->depth = bitspixel;
visual->byte_order = GDK_LSB_FIRST;
visual->bits_per_rgb = 42; /* Not used? */
if ((visual->type != GDK_VISUAL_TRUE_COLOR) &&
(visual->type != GDK_VISUAL_DIRECT_COLOR))
{
visual->red_mask = 0;
visual->green_mask = 0;
visual->blue_mask = 0;
}
else
map_entries = 1 << (MAX (get_color_precision (visual->red_mask),
MAX (get_color_precision (visual->green_mask),
get_color_precision (visual->blue_mask))));
visual->colormap_size = map_entries;
return visual;
}
static gboolean
init_root_window_size (GdkWin32Screen *screen)
{
GdkRectangle result;
int i;
GdkDisplay *display = _gdk_display;
int monitor_count;
GdkMonitor *monitor;
gboolean changed;
GdkWindowImplWin32 *root_impl;
monitor_count = gdk_display_get_n_monitors (display);
monitor = gdk_display_get_monitor (display, 0);
gdk_monitor_get_geometry (monitor, &result);
for (i = 1; i < monitor_count; i++)
{
GdkRectangle rect;
monitor = gdk_display_get_monitor (display, i);
gdk_monitor_get_geometry (monitor, &rect);
gdk_rectangle_union (&result, &rect, &result);
}
changed = screen->root_window->width != result.width ||
screen->root_window->height != result.height;
screen->root_window->width = result.width;
screen->root_window->height = result.height;
root_impl = GDK_WINDOW_IMPL_WIN32 (screen->root_window->impl);
root_impl->unscaled_width = result.width * root_impl->window_scale;
root_impl->unscaled_height = result.height * root_impl->window_scale;
return changed;
}
static gboolean
init_root_window (GdkWin32Screen *screen_win32)
{
GdkScreen *screen;
GdkWindow *window;
GdkWindowImplWin32 *impl_win32;
gboolean changed;
GdkWin32Display *win32_display;
screen = GDK_SCREEN (screen_win32);
g_assert (screen_win32->root_window == NULL);
window = _gdk_display_create_window (_gdk_display);
window->impl = g_object_new (GDK_TYPE_WINDOW_IMPL_WIN32, NULL);
impl_win32 = GDK_WINDOW_IMPL_WIN32 (window->impl);
impl_win32->wrapper = window;
window->impl_window = window;
window->visual = gdk_screen_get_system_visual (screen);
window->window_type = GDK_WINDOW_ROOT;
window->depth = window->visual->depth;
screen_win32->root_window = window;
changed = init_root_window_size (screen_win32);
window->x = 0;
window->y = 0;
window->abs_x = 0;
window->abs_y = 0;
/* width and height already initialised in init_root_window_size() */
window->viewable = TRUE;
win32_display = GDK_WIN32_DISPLAY (_gdk_display);
if (win32_display->dpi_aware_type != PROCESS_DPI_UNAWARE)
impl_win32->window_scale = _gdk_win32_display_get_monitor_scale_factor (win32_display,
NULL,
impl_win32->handle,
NULL);
else
impl_win32->window_scale = 1;
impl_win32->unscaled_width = window->width * impl_win32->window_scale;
impl_win32->unscaled_height = window->height * impl_win32->window_scale;
gdk_win32_handle_table_insert ((HANDLE *) &impl_win32->handle, window);
GDK_NOTE (MISC, g_print ("screen->root_window=%p\n", window));
return changed;
}
static void
gdk_win32_screen_init (GdkWin32Screen *win32_screen)
{
GdkScreen *screen = GDK_SCREEN (win32_screen);
_gdk_win32_screen_set_font_resolution (win32_screen);
win32_screen->system_visual = init_visual (screen, FALSE);
win32_screen->rgba_visual = init_visual (screen, TRUE);
win32_screen->available_visual_depths[0] = win32_screen->rgba_visual->depth;
win32_screen->available_visual_types[0] = win32_screen->rgba_visual->type;
_gdk_win32_display_init_monitors (GDK_WIN32_DISPLAY (_gdk_display));
init_root_window (win32_screen);
/* On Windows 8 and later, DWM (composition) is always enabled */
win32_screen->always_composited = g_win32_check_windows_version (6, 2, 0, G_WIN32_OS_ANY);
}
void
_gdk_win32_screen_on_displaychange_event (GdkWin32Screen *screen)
{
gboolean monitors_changed;
monitors_changed = _gdk_win32_display_init_monitors (GDK_WIN32_DISPLAY (_gdk_display));
if (init_root_window_size (screen))
g_signal_emit_by_name (screen, "size-changed");
if (monitors_changed)
g_signal_emit_by_name (screen, "monitors-changed");
}
void
_gdk_win32_screen_set_font_resolution (GdkWin32Screen *win32_screen)
{
GdkScreen *screen = GDK_SCREEN (win32_screen);
int logpixelsx = -1;
const gchar *font_resolution;
font_resolution = g_getenv ("GDK_WIN32_FONT_RESOLUTION");
if (font_resolution)
{
int env_logpixelsx = atol (font_resolution);
if (env_logpixelsx > 0)
logpixelsx = env_logpixelsx;
}
else
{
gint dpi = -1;
GdkWin32Display *win32_display = GDK_WIN32_DISPLAY (gdk_screen_get_display (screen));
guint scale = _gdk_win32_display_get_monitor_scale_factor (win32_display, NULL, NULL, &dpi);
/* If we have a scale that is at least 2, don't scale up the fonts */
if (scale >= 2)
logpixelsx = USER_DEFAULT_SCREEN_DPI;
else
logpixelsx = dpi;
}
if (logpixelsx > 0)
_gdk_screen_set_resolution (screen, logpixelsx);
}
static GdkDisplay *
gdk_win32_screen_get_display (GdkScreen *screen)
{
return _gdk_display;
}
static gint
gdk_win32_screen_get_width (GdkScreen *screen)
{
return GDK_WIN32_SCREEN (screen)->root_window->width;
}
static gint
gdk_win32_screen_get_height (GdkScreen *screen)
{
return GDK_WIN32_SCREEN (screen)->root_window->height;
}
static gint
gdk_win32_screen_get_width_mm (GdkScreen *screen)
{
return (double) gdk_screen_get_width (screen) / GetDeviceCaps (_gdk_display_hdc, LOGPIXELSX) * 25.4;
}
static gint
gdk_win32_screen_get_height_mm (GdkScreen *screen)
{
return (double) gdk_screen_get_height (screen) / GetDeviceCaps (_gdk_display_hdc, LOGPIXELSY) * 25.4;
}
static GdkWindow *
gdk_win32_screen_get_root_window (GdkScreen *screen)
{
return GDK_WIN32_SCREEN (screen)->root_window;
}
static gint
gdk_win32_screen_get_number (GdkScreen *screen)
{
g_return_val_if_fail (screen == gdk_display_get_default_screen (gdk_display_get_default ()), 0);
return 0;
}
static gchar *
gdk_win32_screen_make_display_name (GdkScreen *screen)
{
return g_strdup (gdk_display_get_name (_gdk_display));
}
static GdkWindow *
gdk_win32_screen_get_active_window (GdkScreen *screen)
{
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
return NULL;
}
static GList *
gdk_win32_screen_get_window_stack (GdkScreen *screen)
{
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
return NULL;
}
static gboolean
gdk_win32_screen_is_composited (GdkScreen *screen)
{
if (GDK_WIN32_SCREEN (screen)->always_composited)
return TRUE;
else
{
gboolean is_composited;
if (DwmIsCompositionEnabled (&is_composited) != S_OK)
return FALSE;
return is_composited;
}
}
static gint
gdk_win32_screen_visual_get_best_depth (GdkScreen *screen)
{
return GDK_WIN32_SCREEN (screen)->available_visual_depths[0];
}
static GdkVisualType
gdk_win32_screen_visual_get_best_type (GdkScreen *screen)
{
return GDK_WIN32_SCREEN (screen)->available_visual_types[0];
}
static GdkVisual *
gdk_win32_screen_get_system_visual (GdkScreen *screen)
{
return GDK_WIN32_SCREEN (screen)->system_visual;
}
static GdkVisual *
gdk_win32_screen_get_rgba_visual (GdkScreen *screen)
{
return GDK_WIN32_SCREEN (screen)->rgba_visual;
}
static GdkVisual*
gdk_win32_screen_visual_get_best (GdkScreen *screen)
{
return GDK_WIN32_SCREEN (screen)->rgba_visual;
}
static GdkVisual *
gdk_win32_screen_visual_get_best_with_depth (GdkScreen *screen,
gint depth)
{
GdkWin32Screen *win32_screen = GDK_WIN32_SCREEN (screen);
if (depth == win32_screen->rgba_visual->depth)
return win32_screen->rgba_visual;
else if (depth == win32_screen->system_visual->depth)
return win32_screen->system_visual;
return NULL;
}
static GdkVisual *
gdk_win32_screen_visual_get_best_with_type (GdkScreen *screen,
GdkVisualType visual_type)
{
GdkWin32Screen *win32_screen = GDK_WIN32_SCREEN (screen);
if (visual_type == win32_screen->rgba_visual->type)
return win32_screen->rgba_visual;
else if (visual_type == win32_screen->system_visual->type)
return win32_screen->system_visual;
return NULL;
}
static GdkVisual *
gdk_win32_screen_visual_get_best_with_both (GdkScreen *screen,
gint depth,
GdkVisualType visual_type)
{
GdkWin32Screen *win32_screen = GDK_WIN32_SCREEN (screen);
if ((depth == win32_screen->rgba_visual->depth) && (visual_type == win32_screen->rgba_visual->type))
return win32_screen->rgba_visual;
else if ((depth == win32_screen->system_visual->depth) && (visual_type == win32_screen->system_visual->type))
return win32_screen->system_visual;
return NULL;
}
static void
gdk_win32_screen_query_depths (GdkScreen *screen,
gint **depths,
gint *count)
{
*count = 1;
*depths = GDK_WIN32_SCREEN (screen)->available_visual_depths;
}
static void
gdk_win32_screen_query_visual_types (GdkScreen *screen,
GdkVisualType **visual_types,
gint *count)
{
*count = 1;
*visual_types = GDK_WIN32_SCREEN (screen)->available_visual_types;
}
static GList *
gdk_win32_screen_list_visuals (GdkScreen *screen)
{
GdkWin32Screen *win32_screen = GDK_WIN32_SCREEN (screen);
GList *result = NULL;
result = g_list_append (result, win32_screen->rgba_visual);
result = g_list_append (result, win32_screen->system_visual);
return result;
}
static void
gdk_win32_screen_finalize (GObject *object)
{
G_OBJECT_CLASS (gdk_win32_screen_parent_class)->finalize (object);
}
static void
gdk_win32_screen_class_init (GdkWin32ScreenClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GdkScreenClass *screen_class = GDK_SCREEN_CLASS (klass);
object_class->finalize = gdk_win32_screen_finalize;
screen_class->get_display = gdk_win32_screen_get_display;
screen_class->get_width = gdk_win32_screen_get_width;
screen_class->get_height = gdk_win32_screen_get_height;
screen_class->get_width_mm = gdk_win32_screen_get_width_mm;
screen_class->get_height_mm = gdk_win32_screen_get_height_mm;
screen_class->get_number = gdk_win32_screen_get_number;
screen_class->get_root_window = gdk_win32_screen_get_root_window;
screen_class->is_composited = gdk_win32_screen_is_composited;
screen_class->make_display_name = gdk_win32_screen_make_display_name;
screen_class->get_active_window = gdk_win32_screen_get_active_window;
screen_class->get_window_stack = gdk_win32_screen_get_window_stack;
screen_class->get_setting = _gdk_win32_screen_get_setting;
screen_class->get_system_visual = gdk_win32_screen_get_system_visual;
screen_class->get_rgba_visual = gdk_win32_screen_get_rgba_visual;
screen_class->visual_get_best_depth = gdk_win32_screen_visual_get_best_depth;
screen_class->visual_get_best_type = gdk_win32_screen_visual_get_best_type;
screen_class->visual_get_best = gdk_win32_screen_visual_get_best;
screen_class->visual_get_best_with_depth = gdk_win32_screen_visual_get_best_with_depth;
screen_class->visual_get_best_with_type = gdk_win32_screen_visual_get_best_with_type;
screen_class->visual_get_best_with_both = gdk_win32_screen_visual_get_best_with_both;
screen_class->query_depths = gdk_win32_screen_query_depths;
screen_class->query_visual_types = gdk_win32_screen_query_visual_types;
screen_class->list_visuals = gdk_win32_screen_list_visuals;
}
Reference in New Issue View Git Blame Copy Permalink