forked from AuroraMiddleware/gtk
win32: Remove all mentions of visuals
This commit is contained in:
Benjamin Otte
parent
4585af5719
commit
ec06a717ce
@ -31,11 +31,6 @@ struct _GdkWin32Screen
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{
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GdkScreen parent_instance;
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GdkVisual *system_visual;
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GdkVisual *rgba_visual;
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gint available_visual_depths[1];
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GdkVisualType available_visual_types[1];
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GdkWindow *root_window;
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};
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@ -46,206 +41,6 @@ struct _GdkWin32ScreenClass
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G_DEFINE_TYPE (GdkWin32Screen, gdk_win32_screen, GDK_TYPE_SCREEN)
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static gint
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get_color_precision (gulong mask)
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{
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gint p = 0;
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while (mask & 0x1)
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{
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p++;
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mask >>= 1;
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}
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return p;
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}
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static GdkVisual *
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init_visual (GdkScreen *screen,
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gboolean is_rgba)
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{
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GdkVisual *visual;
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struct
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{
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BITMAPINFOHEADER bi;
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union
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{
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RGBQUAD colors[256];
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DWORD fields[256];
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} u;
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} bmi;
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HBITMAP hbm;
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const gint rastercaps = GetDeviceCaps (_gdk_display_hdc, RASTERCAPS);
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const int numcolors = GetDeviceCaps (_gdk_display_hdc, NUMCOLORS);
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gint bitspixel = GetDeviceCaps (_gdk_display_hdc, BITSPIXEL);
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gint map_entries = 0;
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visual = g_object_new (GDK_TYPE_VISUAL, NULL);
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visual->screen = screen;
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if (rastercaps & RC_PALETTE)
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{
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const int sizepalette = GetDeviceCaps (_gdk_display_hdc, SIZEPALETTE);
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gchar *max_colors = getenv ("GDK_WIN32_MAX_COLORS");
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visual->type = GDK_VISUAL_PSEUDO_COLOR;
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g_assert (sizepalette == 256);
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if (max_colors != NULL)
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_gdk_max_colors = atoi (max_colors);
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map_entries = _gdk_max_colors;
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if (map_entries >= 16 && map_entries < sizepalette)
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{
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if (map_entries < 32)
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{
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map_entries = 16;
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visual->type = GDK_VISUAL_STATIC_COLOR;
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bitspixel = 4;
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}
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else if (map_entries < 64)
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{
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map_entries = 32;
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bitspixel = 5;
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}
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else if (map_entries < 128)
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{
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map_entries = 64;
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bitspixel = 6;
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}
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else if (map_entries < 256)
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{
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map_entries = 128;
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bitspixel = 7;
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}
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else
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g_assert_not_reached ();
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}
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else
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map_entries = sizepalette;
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}
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else if (bitspixel == 1 && numcolors == 16)
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{
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bitspixel = 4;
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visual->type = GDK_VISUAL_STATIC_COLOR;
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map_entries = 16;
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}
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else if (bitspixel == 1)
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{
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visual->type = GDK_VISUAL_STATIC_GRAY;
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map_entries = 2;
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}
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else if (bitspixel == 4)
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{
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visual->type = GDK_VISUAL_STATIC_COLOR;
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map_entries = 16;
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}
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else if (bitspixel == 8)
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{
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visual->type = GDK_VISUAL_STATIC_COLOR;
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map_entries = 256;
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}
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else if (bitspixel == 16)
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{
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visual->type = GDK_VISUAL_TRUE_COLOR;
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#if 1
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/* This code by Mike Enright,
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* see http://www.users.cts.com/sd/m/menright/display.html
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*/
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memset (&bmi, 0, sizeof (bmi));
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bmi.bi.biSize = sizeof (bmi.bi);
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hbm = CreateCompatibleBitmap (_gdk_display_hdc, 1, 1);
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GetDIBits (_gdk_display_hdc, hbm, 0, 1, NULL,
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(BITMAPINFO *) &bmi, DIB_RGB_COLORS);
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GetDIBits (_gdk_display_hdc, hbm, 0, 1, NULL,
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(BITMAPINFO *) &bmi, DIB_RGB_COLORS);
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DeleteObject (hbm);
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if (bmi.bi.biCompression != BI_BITFIELDS)
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{
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/* Either BI_RGB or BI_RLE_something
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* .... or perhaps (!!) something else.
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* Theoretically biCompression might be
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* mmioFourCC('c','v','i','d') but I doubt it.
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*/
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if (bmi.bi.biCompression == BI_RGB)
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{
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/* It's 555 */
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bitspixel = 15;
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visual->red_mask = 0x00007C00;
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visual->green_mask = 0x000003E0;
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visual->blue_mask = 0x0000001F;
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}
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else
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{
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g_assert_not_reached ();
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}
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}
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else
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{
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DWORD allmasks =
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bmi.u.fields[0] | bmi.u.fields[1] | bmi.u.fields[2];
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int k = 0;
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while (allmasks)
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{
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if (allmasks&1)
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k++;
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allmasks/=2;
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}
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bitspixel = k;
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visual->red_mask = bmi.u.fields[0];
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visual->green_mask = bmi.u.fields[1];
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visual->blue_mask = bmi.u.fields[2];
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}
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#else
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/* Old, incorrect (but still working) code. */
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#if 0
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visual->red_mask = 0x0000F800;
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visual->green_mask = 0x000007E0;
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visual->blue_mask = 0x0000001F;
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#else
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visual->red_mask = 0x00007C00;
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visual->green_mask = 0x000003E0;
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visual->blue_mask = 0x0000001F;
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#endif
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#endif
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}
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else if (bitspixel == 24 || bitspixel == 32)
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{
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if (!is_rgba)
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bitspixel = 24;
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visual->type = GDK_VISUAL_TRUE_COLOR;
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visual->red_mask = 0x00FF0000;
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visual->green_mask = 0x0000FF00;
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visual->blue_mask = 0x000000FF;
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}
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else
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g_error ("_gdk_visual_init: unsupported BITSPIXEL: %d\n", bitspixel);
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visual->depth = bitspixel;
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visual->byte_order = GDK_LSB_FIRST;
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visual->bits_per_rgb = 42; /* Not used? */
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if ((visual->type != GDK_VISUAL_TRUE_COLOR) &&
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(visual->type != GDK_VISUAL_DIRECT_COLOR))
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{
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visual->red_mask = 0;
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visual->green_mask = 0;
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visual->blue_mask = 0;
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}
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else
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map_entries = 1 << (MAX (get_color_precision (visual->red_mask),
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MAX (get_color_precision (visual->green_mask),
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get_color_precision (visual->blue_mask))));
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visual->colormap_size = map_entries;
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return visual;
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}
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static gboolean
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init_root_window_size (GdkWin32Screen *screen)
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{
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