aboutsummaryrefslogtreecommitdiff
path: root/nx-X11/lib/Xcursor/xlib.c
diff options
context:
space:
mode:
Diffstat (limited to 'nx-X11/lib/Xcursor/xlib.c')
-rw-r--r--nx-X11/lib/Xcursor/xlib.c422
1 files changed, 0 insertions, 422 deletions
diff --git a/nx-X11/lib/Xcursor/xlib.c b/nx-X11/lib/Xcursor/xlib.c
deleted file mode 100644
index 7d10caf18..000000000
--- a/nx-X11/lib/Xcursor/xlib.c
+++ /dev/null
@@ -1,422 +0,0 @@
-/*
- * $Id: xlib.c,v 1.5 2005/07/03 07:00:56 daniels Exp $
- *
- * Copyright © 2002 Keith Packard
- *
- * Permission to use, copy, modify, distribute, and sell this software and its
- * documentation for any purpose is hereby granted without fee, provided that
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation, and that the name of Keith Packard not be used in
- * advertising or publicity pertaining to distribution of the software without
- * specific, written prior permission. Keith Packard makes no
- * representations about the suitability of this software for any purpose. It
- * is provided "as is" without express or implied warranty.
- *
- * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
- * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
- * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
- * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
- * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "xcursorint.h"
-#include <X11/Xlibint.h>
-#include <X11/Xatom.h>
-#include <stdlib.h>
-
-static XcursorBool
-_XcursorFontIsCursor (Display *dpy, Font font)
-{
- XcursorFontInfo *fi;
- XcursorDisplayInfo *info;
- XcursorBool ret;
- XFontStruct *fs;
- int n;
- Atom cursor;
-
- if (!dpy || !font)
- return XcursorFalse;
-
- if (font == dpy->cursor_font)
- return XcursorTrue;
-
- info = _XcursorGetDisplayInfo (dpy);
- if (!info)
- return XcursorFalse;
- LockDisplay (dpy);
- for (fi = info->fonts; fi; fi = fi->next)
- if (fi->font == font)
- {
- ret = fi->is_cursor_font;
- UnlockDisplay (dpy);
- return ret;
- }
- UnlockDisplay (dpy);
- ret = XcursorFalse;
- fs = XQueryFont (dpy, font);
- if (fs)
- {
- cursor = XInternAtom (dpy, "cursor", False);
- for (n = 0; n < fs->n_properties; n++)
- if (fs->properties[n].name == XA_FONT)
- {
- ret = (fs->properties[n].card32 == cursor);
- break;
- }
- }
- fi = malloc (sizeof (XcursorFontInfo));
- if (fi)
- {
- fi->font = font;
- fi->is_cursor_font = ret;
- LockDisplay (dpy);
- fi->next = info->fonts;
- info->fonts = fi;
- UnlockDisplay (dpy);
- }
- return ret;
-}
-
-Cursor
-XcursorTryShapeCursor (Display *dpy,
- Font source_font,
- Font mask_font,
- unsigned int source_char,
- unsigned int mask_char,
- XColor _Xconst *foreground,
- XColor _Xconst *background)
-{
- Cursor cursor = None;
-
- if (!dpy || !source_font || !mask_font || !foreground || !background)
- return 0;
-
- if (!XcursorSupportsARGB (dpy) && !XcursorGetThemeCore (dpy))
- return None;
-
- if (source_font == mask_font &&
- _XcursorFontIsCursor (dpy, source_font) &&
- source_char + 1 == mask_char)
- {
- int size = XcursorGetDefaultSize (dpy);
- char *theme = XcursorGetTheme (dpy);
- XcursorImages *images = XcursorShapeLoadImages (source_char, theme, size);
-
- if (images)
- {
- cursor = XcursorImagesLoadCursor (dpy, images);
- XcursorImagesDestroy (images);
- }
- }
- return cursor;
-}
-
-void
-XcursorNoticeCreateBitmap (Display *dpy,
- Pixmap pid,
- unsigned int width,
- unsigned int height)
-{
- XcursorDisplayInfo *info;
- unsigned long oldest;
- unsigned long now;
- int i;
- int replace = 0;
- XcursorBitmapInfo *bmi;
-
- if (!dpy)
- return;
-
- if (!XcursorSupportsARGB (dpy) && !XcursorGetThemeCore (dpy))
- return;
-
- if (width > MAX_BITMAP_CURSOR_SIZE || height > MAX_BITMAP_CURSOR_SIZE)
- return;
-
- info = _XcursorGetDisplayInfo (dpy);
- if (!info)
- return;
-
- LockDisplay (dpy);
- replace = 0;
- now = dpy->request;
- oldest = now;
- for (i = 0; i < NUM_BITMAPS; i++)
- {
- if (!info->bitmaps[i].bitmap)
- {
- replace = i;
- break;
- }
- if ((long) (now - info->bitmaps[i].sequence) >
- (long) (now - oldest))
- {
- replace = i;
- oldest = info->bitmaps[i].sequence;
- }
- }
- bmi = &info->bitmaps[replace];
- bmi->bitmap = pid;
- bmi->sequence = now;
- bmi->width = width;
- bmi->height = height;
- bmi->has_image = False;
- UnlockDisplay (dpy);
-}
-
-static XcursorBitmapInfo *
-_XcursorGetBitmap (Display *dpy, Pixmap bitmap)
-{
- XcursorDisplayInfo *info;
- int i;
-
- if (!dpy || !bitmap)
- return NULL;
-
- info = _XcursorGetDisplayInfo (dpy);
-
- if (!info)
- return 0;
- LockDisplay (dpy);
- for (i = 0; i < NUM_BITMAPS; i++)
- if (info->bitmaps[i].bitmap == bitmap)
- {
- info->bitmaps[i].sequence = dpy->request;
- UnlockDisplay (dpy);
- return &info->bitmaps[i];
- }
- UnlockDisplay (dpy);
- return 0;
-}
-
-static Bool
-_XcursorClientLSB (void)
-{
- int v = 1;
- return *((char *) &v) == 1;
-}
-
-/* stolen from Xlib */
-static unsigned char const _reverse_byte[0x100] = {
- 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
- 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
- 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
- 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
- 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
- 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
- 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
- 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
- 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
- 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
- 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
- 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
- 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
- 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
- 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
- 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
- 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
- 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
- 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
- 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
- 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
- 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
- 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
- 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
- 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
- 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
- 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
- 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
- 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
- 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
- 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
- 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
-};
-
-#define RotByte(t,i) (((t) << (i)) | ((t) >> (8 - (i))))
-
-void
-XcursorImageHash (XImage *image,
- unsigned char hash[XCURSOR_BITMAP_HASH_SIZE])
-{
- int i;
- int x, y;
- unsigned char *line;
- unsigned char t;
- int low_addr;
- Bool bit_swap;
-
- if (!image)
- return;
-
- for (i = 0; i < XCURSOR_BITMAP_HASH_SIZE; i++)
- hash[i] = 0;
- /*
- * Flip byte order on MSB machines where the bitmap_unit isn't
- * in bytes
- */
- low_addr = 0;
- if (image->bitmap_unit != 8)
- {
- if (!_XcursorClientLSB())
- switch (image->bitmap_unit) {
- case 16:
- low_addr = 1;
- break;
- case 32:
- low_addr = 3;
- break;
- }
- }
- /*
- * Flip bit order on MSB images
- */
- bit_swap = (image->bitmap_bit_order != LSBFirst);
-
- line = (unsigned char *) image->data;
- i = 0;
- /*
- * Compute the hash. Yes, it might be nice to use
- * a stronger hash function, but MD5 and SHA1 are both
- * a bit to expensive in time and space for this,
- * and cursors are generally small enough that a weak
- * hash is sufficient to distinguish among them.
- */
- for (y = 0; y < image->height; y++)
- {
- for (x = 0; x < image->bytes_per_line; x++)
- {
- t = line[x^low_addr];
- if (bit_swap)
- t = _reverse_byte[t];
- if (t)
- hash[(i++) & (XCURSOR_BITMAP_HASH_SIZE - 1)] ^= RotByte (t, y & 7);
- }
- line += image->bytes_per_line;
- }
-}
-
-static Bool
-_XcursorLogDiscover (void)
-{
- static Bool been_here;
- static Bool log;
-
- if (!been_here)
- {
- been_here = True;
-
- if (getenv ("XCURSOR_DISCOVER"))
- log = True;
- }
- return log;
-}
-
-void
-XcursorNoticePutBitmap (Display *dpy,
- Drawable draw,
- XImage *image)
-{
- XcursorBitmapInfo *bmi;
-
- if (!dpy || !image)
- return;
-
- if (!XcursorSupportsARGB (dpy) && !XcursorGetThemeCore (dpy))
- return;
-
- if (image->width > MAX_BITMAP_CURSOR_SIZE ||
- image->height > MAX_BITMAP_CURSOR_SIZE)
- return;
-
- bmi = _XcursorGetBitmap (dpy, (Pixmap) draw);
- if (!bmi)
- return;
- /*
- * Make sure the image fills the bitmap
- */
- if (image->width != bmi->width || image->height != bmi->height)
- {
- bmi->bitmap = 0;
- return;
- }
- /*
- * If multiple images are placed in the same bitmap,
- * assume it's not going to be a cursor
- */
- if (bmi->has_image)
- {
- bmi->bitmap = 0;
- return;
- }
- /*
- * Make sure the image is valid
- */
- if (image->bytes_per_line & ((image->bitmap_unit >> 3) - 1))
- {
- bmi->bitmap = 0;
- return;
- }
- /*
- * Hash the image
- */
- XcursorImageHash (image, bmi->hash);
- /*
- * Display the hash value and the image if
- * requested so that users can find out what
- * cursor name is associated with each image
- */
- if (_XcursorLogDiscover())
- {
- int x, y;
- int i;
- XImage t = *image;
-
- XInitImage (&t);
-
- printf ("Cursor image name: ");
- for (i = 0; i < XCURSOR_BITMAP_HASH_SIZE; i++)
- printf ("%02x", bmi->hash[i]);
- printf ("\n");
- for (y = 0; y < image->height; y++)
- {
- for (x = 0; x < image->width; x++)
- putchar (XGetPixel (&t, x, y) ? '*' : ' ');
- putchar ('\n');
- }
- }
- bmi->has_image = True;
-}
-
-Cursor
-XcursorTryShapeBitmapCursor (Display *dpy,
- Pixmap source,
- Pixmap mask,
- XColor *foreground,
- XColor *background,
- unsigned int x,
- unsigned int y)
-{
- XcursorBitmapInfo *bmi;
- char name[8 * XCURSOR_BITMAP_HASH_SIZE];
- int i;
- Cursor cursor;
-
- if (!dpy || !foreground || !background)
- return 0;
-
- if (!XcursorSupportsARGB (dpy) && !XcursorGetThemeCore (dpy))
- return None;
-
- bmi = _XcursorGetBitmap (dpy, source);
- if (!bmi || !bmi->has_image)
- return None;
- for (i = 0; i < XCURSOR_BITMAP_HASH_SIZE; i++)
- sprintf (name + 2 * i, "%02x", bmi->hash[i]);
- cursor = XcursorLibraryLoadCursor (dpy, name);
- if (_XcursorLogDiscover())
- printf ("Cursor hash %s returns 0x%x\n", name, (unsigned int) cursor);
- return cursor;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 06:23:56 +0000