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(pixbuf_to_hbitmaps_alpha_winxp): Use an 1-bit mask bitmap, like

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2005-11-06  Tor Lillqvist  <tml@novell.com>

	(pixbuf_to_hbitmaps_alpha_winxp): Use an 1-bit mask bitmap,
	like pixbuf_to_hbitmaps_normal().
	(_gdk_win32_pixbuf_to_hicon_supports_alpha): Check
	G_WIN32_IS_NT_BASED() first, so we can pretend being on Win9x by
	setting the G_WIN32_PRETEND_WIN9X environment variable.

2005-11-06  Tor Lillqvist  <tml@novell.com>

	Make icon masks work on Win98 (#320152, Peter Zelezny)

	* gdk/win32/gdkcursor-win32.c (create_color_bitmap): Take also a
	parameter for the depth of the bitmap, so that this function can
	be used to create 1-bit bitmaps, too.
	(pixbuf_to_hbitmaps_normal): Create an 1-bit bitmap for the mask,
	and initialize it properly.
This commit is contained in:
Tor Lillqvist 2005-11-06 05:36:49 +00:00 committed by Tor Lillqvist
parent 7f6251a593
commit bd9e367de7
3 changed files with 117 additions and 36 deletions
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18
ChangeLog
View File

@ -1,3 +1,21 @@
2005-11-06 Tor Lillqvist <tml@novell.com>
(pixbuf_to_hbitmaps_alpha_winxp): Use an 1-bit mask bitmap,
like pixbuf_to_hbitmaps_normal().
(_gdk_win32_pixbuf_to_hicon_supports_alpha): Check
G_WIN32_IS_NT_BASED() first, so we can pretend being on Win9x by
setting the G_WIN32_PRETEND_WIN9X environment variable.
2005-11-06 Tor Lillqvist <tml@novell.com>
Make icon masks work on Win98 (#320152, Peter Zelezny)
* gdk/win32/gdkcursor-win32.c (create_color_bitmap): Take also a
parameter for the depth of the bitmap, so that this function can
be used to create 1-bit bitmaps, too.
(pixbuf_to_hbitmaps_normal): Create an 1-bit bitmap for the mask,
and initialize it properly.
2005-11-04 Matthias Clasen <mclasen@redhat.com>
Store builtin stock icons in an icon cache, instead of

18
ChangeLog.pre-2-10
View File

@ -1,3 +1,21 @@
2005-11-06 Tor Lillqvist <tml@novell.com>
(pixbuf_to_hbitmaps_alpha_winxp): Use an 1-bit mask bitmap,
like pixbuf_to_hbitmaps_normal().
(_gdk_win32_pixbuf_to_hicon_supports_alpha): Check
G_WIN32_IS_NT_BASED() first, so we can pretend being on Win9x by
setting the G_WIN32_PRETEND_WIN9X environment variable.
2005-11-06 Tor Lillqvist <tml@novell.com>
Make icon masks work on Win98 (#320152, Peter Zelezny)
* gdk/win32/gdkcursor-win32.c (create_color_bitmap): Take also a
parameter for the depth of the bitmap, so that this function can
be used to create 1-bit bitmaps, too.
(pixbuf_to_hbitmaps_normal): Create an 1-bit bitmap for the mask,
and initialize it properly.
2005-11-04 Matthias Clasen <mclasen@redhat.com>
Store builtin stock icons in an icon cache, instead of

117
gdk/win32/gdkcursor-win32.c
View File

@ -550,7 +550,7 @@ gdk_display_supports_cursor_color (GdkDisplay *display)
guint
gdk_display_get_default_cursor_size (GdkDisplay *display)
{
g_return_val_if_fail (display == _gdk_display, FALSE);
g_return_val_if_fail (display == _gdk_display, 0);
return MIN (GetSystemMetrics (SM_CXCURSOR), GetSystemMetrics (SM_CYCURSOR));
}
@ -560,7 +560,7 @@ gdk_display_get_maximal_cursor_size (GdkDisplay *display,
guint *width,
guint *height)
{
g_return_val_if_fail (display == _gdk_display, FALSE);
g_return_if_fail (display == _gdk_display);
if (width)
*width = GetSystemMetrics (SM_CXCURSOR);
@ -613,19 +613,32 @@ create_alpha_bitmap (gint width, gint height, guchar **outdata)
}
static HBITMAP
create_color_bitmap (gint width, gint height, guchar **outdata)
create_color_bitmap (gint width,
gint height,
guchar **outdata,
gint bits)
{
BITMAPV4HEADER bi;
struct {
BITMAPV4HEADER bmiHeader;
RGBQUAD bmiColors[2];
} bmi;
HDC hdc;
HBITMAP hBitmap;
ZeroMemory (&bi, sizeof (BITMAPV4HEADER));
bi.bV4Size = sizeof (BITMAPV4HEADER);
bi.bV4Width = width;
bi.bV4Height = height;
bi.bV4Planes = 1;
bi.bV4BitCount = 24;
bi.bV4V4Compression = BI_RGB;
ZeroMemory (&bmi, sizeof (bmi));
bmi.bmiHeader.bV4Size = sizeof (BITMAPV4HEADER);
bmi.bmiHeader.bV4Width = width;
bmi.bmiHeader.bV4Height = height;
bmi.bmiHeader.bV4Planes = 1;
bmi.bmiHeader.bV4BitCount = bits;
bmi.bmiHeader.bV4V4Compression = BI_RGB;
/* when bits is 1, these will be used.
* bmiColors[0] already zeroed from ZeroMemory()
*/
bmi.bmiColors[1].rgbBlue = 0xFF;
bmi.bmiColors[1].rgbGreen = 0xFF;
bmi.bmiColors[1].rgbRed = 0xFF;
hdc = GetDC (NULL);
if (!hdc)
@ -633,7 +646,7 @@ create_color_bitmap (gint width, gint height, guchar **outdata)
WIN32_GDI_FAILED ("GetDC");
return NULL;
}
hBitmap = CreateDIBSection (hdc, (BITMAPINFO *)&bi, DIB_RGB_COLORS,
hBitmap = CreateDIBSection (hdc, (BITMAPINFO *)&bmi, DIB_RGB_COLORS,
(PVOID *) outdata, NULL, (DWORD)0);
if (hBitmap == NULL)
WIN32_GDI_FAILED ("CreateDIBSection");
@ -651,9 +664,10 @@ pixbuf_to_hbitmaps_alpha_winxp (GdkPixbuf *pixbuf,
* http://www.dotnet247.com/247reference/msgs/13/66301.aspx
*/
HBITMAP hColorBitmap, hMaskBitmap;
guchar *indata, *inrow, *maskdata, *maskrow;
guchar *colordata, *colorrow;
gint width, height, i, j, rowstride, bmstride;
guchar *indata, *inrow;
guchar *colordata, *colorrow, *maskdata, *maskbyte;
gint width, height, i, j, rowstride;
guint maskstride, mask_bit;
width = gdk_pixbuf_get_width (pixbuf); /* width of icon */
height = gdk_pixbuf_get_height (pixbuf); /* height of icon */
@ -661,23 +675,27 @@ pixbuf_to_hbitmaps_alpha_winxp (GdkPixbuf *pixbuf,
hColorBitmap = create_alpha_bitmap (width, height, &colordata);
if (!hColorBitmap)
return FALSE;
hMaskBitmap = create_color_bitmap (width, height, &maskdata);
hMaskBitmap = create_color_bitmap (width, height, &maskdata, 1);
if (!hMaskBitmap)
{
DeleteObject (hColorBitmap);
return FALSE;
}
bmstride = width * 3;
if (bmstride % 4 != 0)
bmstride += 4 - (bmstride % 4);
/* MSDN says mask rows are aligned to "LONG" boundaries */
maskstride = width / 8;
if (maskstride % 4 != 0)
maskstride += 4 - (maskstride % 4);
if (maskstride < 4) /* one word minimum */
maskstride = 4;
indata = gdk_pixbuf_get_pixels (pixbuf);
rowstride = gdk_pixbuf_get_rowstride (pixbuf);
for (j=0; j<height; j++)
{
colorrow = colordata + 4*j*width;
maskrow = maskdata + j*bmstride;
maskbyte = maskdata + j*maskstride;
mask_bit = 0x80;
inrow = indata + (height-j-1)*rowstride;
for (i=0; i<width; i++)
{
@ -686,9 +704,15 @@ pixbuf_to_hbitmaps_alpha_winxp (GdkPixbuf *pixbuf,
colorrow[4*i+2] = inrow[4*i+0];
colorrow[4*i+3] = inrow[4*i+3];
if (inrow[4*i+3] == 0)
maskrow[3*i+0] = maskrow[3*i+1] = maskrow[3*i+2] = 255;
maskbyte[0] |= mask_bit; /* turn ON bit */
else
maskrow[3*i+0] = maskrow[3*i+1] = maskrow[3*i+2] = 0;
maskbyte[0] &= ~mask_bit; /* turn OFF bit */
mask_bit >>= 1;
if (mask_bit == 0)
{
mask_bit = 0x80;
maskbyte++;
}
}
}
@ -708,17 +732,18 @@ pixbuf_to_hbitmaps_normal (GdkPixbuf *pixbuf,
*/
HBITMAP hColorBitmap, hMaskBitmap;
guchar *indata, *inrow;
guchar *colordata, *colorrow, *maskdata, *maskrow;
guchar *colordata, *colorrow, *maskdata, *maskbyte;
gint width, height, i, j, rowstride, nc, bmstride;
gboolean has_alpha;
guint maskstride, mask_bit;
width = gdk_pixbuf_get_width (pixbuf); /* width of icon */
height = gdk_pixbuf_get_height (pixbuf); /* height of icon */
hColorBitmap = create_color_bitmap (width, height, &colordata);
hColorBitmap = create_color_bitmap (width, height, &colordata, 24);
if (!hColorBitmap)
return FALSE;
hMaskBitmap = create_color_bitmap (width, height, &maskdata);
hMaskBitmap = create_color_bitmap (width, height, &maskdata, 1);
if (!hMaskBitmap)
{
DeleteObject (hColorBitmap);
@ -730,6 +755,13 @@ pixbuf_to_hbitmaps_normal (GdkPixbuf *pixbuf,
if (bmstride % 4 != 0)
bmstride += 4 - (bmstride % 4);
/* MSDN says mask rows are aligned to "LONG" boundaries */
maskstride = width / 8;
if (maskstride % 4 != 0)
maskstride += 4 - (maskstride % 4);
if (maskstride < 4) /* one word minimum */
maskstride = 4;
indata = gdk_pixbuf_get_pixels (pixbuf);
rowstride = gdk_pixbuf_get_rowstride (pixbuf);
nc = gdk_pixbuf_get_n_channels (pixbuf);
@ -738,21 +770,28 @@ pixbuf_to_hbitmaps_normal (GdkPixbuf *pixbuf,
for (j=0; j<height; j++)
{
colorrow = colordata + j*bmstride;
maskrow = maskdata + j*bmstride;
maskbyte = maskdata + j*maskstride;
mask_bit = 0x80;
inrow = indata + (height-j-1)*rowstride;
for (i=0; i<width; i++)
{
if (has_alpha && inrow[nc*i+3] < 128)
{
colorrow[3*i+0] = colorrow[3*i+1] = colorrow[3*i+2] = 0;
maskrow[3*i+0] = maskrow[3*i+1] = maskrow[3*i+2] = 255;
maskbyte[0] |= mask_bit; /* turn ON bit */
}
else
{
colorrow[3*i+0] = inrow[nc*i+2];
colorrow[3*i+1] = inrow[nc*i+1];
colorrow[3*i+2] = inrow[nc*i+0];
maskrow[3*i+0] = maskrow[3*i+1] = maskrow[3*i+2] = 0;
maskbyte[0] &= ~mask_bit; /* turn OFF bit */
}
mask_bit >>= 1;
if (mask_bit == 0)
{
mask_bit = 0x80;
maskbyte++;
}
}
}
@ -814,15 +853,21 @@ _gdk_win32_pixbuf_to_hicon_supports_alpha (void)
if (!is_win_xp_checked)
{
OSVERSIONINFO version;
is_win_xp_checked = TRUE;
memset (&version, 0, sizeof (version));
version.dwOSVersionInfoSize = sizeof (version);
is_win_xp = GetVersionEx (&version)
&& version.dwPlatformId == VER_PLATFORM_WIN32_NT
&& (version.dwMajorVersion > 5
|| (version.dwMajorVersion == 5 && version.dwMinorVersion >= 1));
if (!G_WIN32_IS_NT_BASED ())
is_win_xp = FALSE;
else
{
OSVERSIONINFO version;
memset (&version, 0, sizeof (version));
version.dwOSVersionInfoSize = sizeof (version);
is_win_xp = GetVersionEx (&version)
&& version.dwPlatformId == VER_PLATFORM_WIN32_NT
&& (version.dwMajorVersion > 5
|| (version.dwMajorVersion == 5 && version.dwMinorVersion >= 1));
}
}
return is_win_xp;
}