3rdparty: Reformat xcursor.{h,c}

This commit is contained in:
Vlad Zahorodnii 2024-05-21 15:29:39 +03:00
parent 586a775d5b
commit e678ebef29
2 changed files with 248 additions and 264 deletions

462
src/3rdparty/xcursor.c vendored
View file

@ -25,17 +25,17 @@
#define _DEFAULT_SOURCE
#include "xcursor.h"
#include <dirent.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
/*
* From libXcursor/include/X11/extensions/Xcursor.h
*/
#define XcursorTrue 1
#define XcursorFalse 0
#define XcursorTrue 1
#define XcursorFalse 0
/*
* Cursor files start with a header. The header
@ -68,7 +68,7 @@
* CARD32 position absolute file position
*/
#define XCURSOR_MAGIC 0x72756358 /* "Xcur" LSBFirst */
#define XCURSOR_MAGIC 0x72756358 /* "Xcur" LSBFirst */
/*
* Current Xcursor version number. Will be substituted by configure
@ -78,32 +78,32 @@
#define XCURSOR_LIB_MAJOR 1
#define XCURSOR_LIB_MINOR 1
#define XCURSOR_LIB_REVISION 13
#define XCURSOR_LIB_VERSION ((XCURSOR_LIB_MAJOR * 10000) + \
(XCURSOR_LIB_MINOR * 100) + \
(XCURSOR_LIB_REVISION))
#define XCURSOR_LIB_VERSION ((XCURSOR_LIB_MAJOR * 10000) + (XCURSOR_LIB_MINOR * 100) + (XCURSOR_LIB_REVISION))
/*
* This version number is stored in cursor files; changes to the
* file format require updating this version number
*/
#define XCURSOR_FILE_MAJOR 1
#define XCURSOR_FILE_MINOR 0
#define XCURSOR_FILE_VERSION ((XCURSOR_FILE_MAJOR << 16) | (XCURSOR_FILE_MINOR))
#define XCURSOR_FILE_HEADER_LEN (4 * 4)
#define XCURSOR_FILE_TOC_LEN (3 * 4)
#define XCURSOR_FILE_MAJOR 1
#define XCURSOR_FILE_MINOR 0
#define XCURSOR_FILE_VERSION ((XCURSOR_FILE_MAJOR << 16) | (XCURSOR_FILE_MINOR))
#define XCURSOR_FILE_HEADER_LEN (4 * 4)
#define XCURSOR_FILE_TOC_LEN (3 * 4)
typedef struct _XcursorFileToc {
XcursorUInt type; /* chunk type */
XcursorUInt subtype; /* subtype (size for images) */
XcursorUInt position; /* absolute position in file */
typedef struct _XcursorFileToc
{
XcursorUInt type; /* chunk type */
XcursorUInt subtype; /* subtype (size for images) */
XcursorUInt position; /* absolute position in file */
} XcursorFileToc;
typedef struct _XcursorFileHeader {
XcursorUInt magic; /* magic number */
XcursorUInt header; /* byte length of header */
XcursorUInt version; /* file version number */
XcursorUInt ntoc; /* number of toc entries */
XcursorFileToc *tocs; /* table of contents */
typedef struct _XcursorFileHeader
{
XcursorUInt magic; /* magic number */
XcursorUInt header; /* byte length of header */
XcursorUInt version; /* file version number */
XcursorUInt ntoc; /* number of toc entries */
XcursorFileToc *tocs; /* table of contents */
} XcursorFileHeader;
/*
@ -122,13 +122,14 @@ typedef struct _XcursorFileHeader {
* CARD32 version chunk type version
*/
#define XCURSOR_CHUNK_HEADER_LEN (4 * 4)
#define XCURSOR_CHUNK_HEADER_LEN (4 * 4)
typedef struct _XcursorChunkHeader {
XcursorUInt header; /* bytes in chunk header */
XcursorUInt type; /* chunk type */
XcursorUInt subtype; /* chunk subtype (size for images) */
XcursorUInt version; /* version of this type */
typedef struct _XcursorChunkHeader
{
XcursorUInt header; /* bytes in chunk header */
XcursorUInt type; /* chunk type */
XcursorUInt subtype; /* chunk subtype (size for images) */
XcursorUInt version; /* version of this type */
} XcursorChunkHeader;
/*
@ -145,18 +146,19 @@ typedef struct _XcursorChunkHeader {
* LISTofCARD8 text UTF-8 encoded text
*/
#define XCURSOR_COMMENT_TYPE 0xfffe0001
#define XCURSOR_COMMENT_VERSION 1
#define XCURSOR_COMMENT_HEADER_LEN (XCURSOR_CHUNK_HEADER_LEN + (1 *4))
#define XCURSOR_COMMENT_COPYRIGHT 1
#define XCURSOR_COMMENT_LICENSE 2
#define XCURSOR_COMMENT_OTHER 3
#define XCURSOR_COMMENT_MAX_LEN 0x100000
#define XCURSOR_COMMENT_TYPE 0xfffe0001
#define XCURSOR_COMMENT_VERSION 1
#define XCURSOR_COMMENT_HEADER_LEN (XCURSOR_CHUNK_HEADER_LEN + (1 * 4))
#define XCURSOR_COMMENT_COPYRIGHT 1
#define XCURSOR_COMMENT_LICENSE 2
#define XCURSOR_COMMENT_OTHER 3
#define XCURSOR_COMMENT_MAX_LEN 0x100000
typedef struct _XcursorComment {
XcursorUInt version;
XcursorUInt comment_type;
char *comment;
typedef struct _XcursorComment
{
XcursorUInt version;
XcursorUInt comment_type;
char *comment;
} XcursorComment;
/*
@ -175,14 +177,15 @@ typedef struct _XcursorComment {
* LISTofCARD32 pixels ARGB pixels
*/
#define XCURSOR_IMAGE_TYPE 0xfffd0002
#define XCURSOR_IMAGE_VERSION 1
#define XCURSOR_IMAGE_HEADER_LEN (XCURSOR_CHUNK_HEADER_LEN + (5*4))
#define XCURSOR_IMAGE_MAX_SIZE 0x7fff /* 32767x32767 max cursor size */
#define XCURSOR_IMAGE_TYPE 0xfffd0002
#define XCURSOR_IMAGE_VERSION 1
#define XCURSOR_IMAGE_HEADER_LEN (XCURSOR_CHUNK_HEADER_LEN + (5 * 4))
#define XCURSOR_IMAGE_MAX_SIZE 0x7fff /* 32767x32767 max cursor size */
typedef struct _XcursorComments {
int ncomment; /* number of comments */
XcursorComment **comments; /* array of XcursorComment pointers */
typedef struct _XcursorComments
{
int ncomment; /* number of comments */
XcursorComment **comments; /* array of XcursorComment pointers */
} XcursorComments;
/*
@ -190,21 +193,20 @@ typedef struct _XcursorComments {
*/
static XcursorImage *
XcursorImageCreate (int width, int height)
XcursorImageCreate(int width, int height)
{
XcursorImage *image;
XcursorImage *image;
if (width < 0 || height < 0)
return NULL;
return NULL;
if (width > XCURSOR_IMAGE_MAX_SIZE || height > XCURSOR_IMAGE_MAX_SIZE)
return NULL;
return NULL;
image = malloc (sizeof (XcursorImage) +
width * height * sizeof (XcursorPixel));
image = malloc(sizeof(XcursorImage) + width * height * sizeof(XcursorPixel));
if (!image)
return NULL;
return NULL;
image->version = XCURSOR_IMAGE_VERSION;
image->pixels = (XcursorPixel *) (image + 1);
image->pixels = (XcursorPixel *)(image + 1);
image->size = width > height ? width : height;
image->width = width;
image->height = height;
@ -213,325 +215,305 @@ XcursorImageCreate (int width, int height)
}
static void
XcursorImageDestroy (XcursorImage *image)
XcursorImageDestroy(XcursorImage *image)
{
free (image);
free(image);
}
static XcursorImages *
XcursorImagesCreate (int size)
XcursorImagesCreate(int size)
{
XcursorImages *images;
XcursorImages *images;
images = malloc (sizeof (XcursorImages) +
size * sizeof (XcursorImage *));
images = malloc(sizeof(XcursorImages) + size * sizeof(XcursorImage *));
if (!images)
return NULL;
return NULL;
images->nimage = 0;
images->images = (XcursorImage **) (images + 1);
images->images = (XcursorImage **)(images + 1);
return images;
}
void
XcursorImagesDestroy (XcursorImages *images)
void XcursorImagesDestroy(XcursorImages *images)
{
int n;
int n;
if (!images)
return;
for (n = 0; n < images->nimage; n++)
XcursorImageDestroy (images->images[n]);
free (images);
XcursorImageDestroy(images->images[n]);
free(images);
}
static XcursorBool
_XcursorReadUInt (XcursorFile *file, XcursorUInt *u)
_XcursorReadUInt(XcursorFile *file, XcursorUInt *u)
{
uint8_t bytes[4];
uint8_t bytes[4];
if (!file || !u)
return XcursorFalse;
if ((*file->read) (file, bytes, 4) != 4)
return XcursorFalse;
if ((*file->read)(file, bytes, 4) != 4)
return XcursorFalse;
*u = ((XcursorUInt)(bytes[0]) << 0) |
((XcursorUInt)(bytes[1]) << 8) |
((XcursorUInt)(bytes[2]) << 16) |
((XcursorUInt)(bytes[3]) << 24);
*u = ((XcursorUInt)(bytes[0]) << 0) | ((XcursorUInt)(bytes[1]) << 8) | ((XcursorUInt)(bytes[2]) << 16) | ((XcursorUInt)(bytes[3]) << 24);
return XcursorTrue;
}
static void
_XcursorFileHeaderDestroy (XcursorFileHeader *fileHeader)
_XcursorFileHeaderDestroy(XcursorFileHeader *fileHeader)
{
free (fileHeader);
free(fileHeader);
}
static XcursorFileHeader *
_XcursorFileHeaderCreate (XcursorUInt ntoc)
_XcursorFileHeaderCreate(XcursorUInt ntoc)
{
XcursorFileHeader *fileHeader;
XcursorFileHeader *fileHeader;
if (ntoc > 0x10000)
return NULL;
fileHeader = malloc (sizeof (XcursorFileHeader) +
ntoc * sizeof (XcursorFileToc));
return NULL;
fileHeader = malloc(sizeof(XcursorFileHeader) + ntoc * sizeof(XcursorFileToc));
if (!fileHeader)
return NULL;
return NULL;
fileHeader->magic = XCURSOR_MAGIC;
fileHeader->header = XCURSOR_FILE_HEADER_LEN;
fileHeader->version = XCURSOR_FILE_VERSION;
fileHeader->ntoc = ntoc;
fileHeader->tocs = (XcursorFileToc *) (fileHeader + 1);
fileHeader->tocs = (XcursorFileToc *)(fileHeader + 1);
return fileHeader;
}
static XcursorFileHeader *
_XcursorReadFileHeader (XcursorFile *file)
_XcursorReadFileHeader(XcursorFile *file)
{
XcursorFileHeader head, *fileHeader;
XcursorUInt skip;
unsigned int n;
XcursorFileHeader head, *fileHeader;
XcursorUInt skip;
unsigned int n;
if (!file)
return NULL;
if (!_XcursorReadUInt (file, &head.magic))
return NULL;
if (!_XcursorReadUInt(file, &head.magic))
return NULL;
if (head.magic != XCURSOR_MAGIC)
return NULL;
if (!_XcursorReadUInt (file, &head.header))
return NULL;
if (!_XcursorReadUInt (file, &head.version))
return NULL;
if (!_XcursorReadUInt (file, &head.ntoc))
return NULL;
return NULL;
if (!_XcursorReadUInt(file, &head.header))
return NULL;
if (!_XcursorReadUInt(file, &head.version))
return NULL;
if (!_XcursorReadUInt(file, &head.ntoc))
return NULL;
skip = head.header - XCURSOR_FILE_HEADER_LEN;
if (skip)
if (!(*file->skip) (file, skip))
return NULL;
fileHeader = _XcursorFileHeaderCreate (head.ntoc);
if (!(*file->skip)(file, skip))
return NULL;
fileHeader = _XcursorFileHeaderCreate(head.ntoc);
if (!fileHeader)
return NULL;
return NULL;
fileHeader->magic = head.magic;
fileHeader->header = head.header;
fileHeader->version = head.version;
fileHeader->ntoc = head.ntoc;
for (n = 0; n < fileHeader->ntoc; n++)
{
if (!_XcursorReadUInt (file, &fileHeader->tocs[n].type))
break;
if (!_XcursorReadUInt (file, &fileHeader->tocs[n].subtype))
break;
if (!_XcursorReadUInt (file, &fileHeader->tocs[n].position))
break;
for (n = 0; n < fileHeader->ntoc; n++) {
if (!_XcursorReadUInt(file, &fileHeader->tocs[n].type))
break;
if (!_XcursorReadUInt(file, &fileHeader->tocs[n].subtype))
break;
if (!_XcursorReadUInt(file, &fileHeader->tocs[n].position))
break;
}
if (n != fileHeader->ntoc)
{
_XcursorFileHeaderDestroy (fileHeader);
return NULL;
if (n != fileHeader->ntoc) {
_XcursorFileHeaderDestroy(fileHeader);
return NULL;
}
return fileHeader;
}
static XcursorBool
_XcursorSeekToToc (XcursorFile *file,
XcursorFileHeader *fileHeader,
int toc)
_XcursorSeekToToc(XcursorFile *file,
XcursorFileHeader *fileHeader,
int toc)
{
if (!file || !fileHeader)
return XcursorFalse;
return (*file->seek) (file, fileHeader->tocs[toc].position);
return (*file->seek)(file, fileHeader->tocs[toc].position);
}
static XcursorBool
_XcursorFileReadChunkHeader (XcursorFile *file,
XcursorFileHeader *fileHeader,
int toc,
XcursorChunkHeader *chunkHeader)
_XcursorFileReadChunkHeader(XcursorFile *file,
XcursorFileHeader *fileHeader,
int toc,
XcursorChunkHeader *chunkHeader)
{
if (!file || !fileHeader || !chunkHeader)
return XcursorFalse;
if (!_XcursorSeekToToc (file, fileHeader, toc))
return XcursorFalse;
if (!_XcursorReadUInt (file, &chunkHeader->header))
return XcursorFalse;
if (!_XcursorReadUInt (file, &chunkHeader->type))
return XcursorFalse;
if (!_XcursorReadUInt (file, &chunkHeader->subtype))
return XcursorFalse;
if (!_XcursorReadUInt (file, &chunkHeader->version))
return XcursorFalse;
if (!_XcursorSeekToToc(file, fileHeader, toc))
return XcursorFalse;
if (!_XcursorReadUInt(file, &chunkHeader->header))
return XcursorFalse;
if (!_XcursorReadUInt(file, &chunkHeader->type))
return XcursorFalse;
if (!_XcursorReadUInt(file, &chunkHeader->subtype))
return XcursorFalse;
if (!_XcursorReadUInt(file, &chunkHeader->version))
return XcursorFalse;
/* sanity check */
if (chunkHeader->type != fileHeader->tocs[toc].type ||
chunkHeader->subtype != fileHeader->tocs[toc].subtype)
return XcursorFalse;
if (chunkHeader->type != fileHeader->tocs[toc].type || chunkHeader->subtype != fileHeader->tocs[toc].subtype)
return XcursorFalse;
return XcursorTrue;
}
#define dist(a,b) ((a) > (b) ? (a) - (b) : (b) - (a))
#define dist(a, b) ((a) > (b) ? (a) - (b) : (b) - (a))
static XcursorDim
_XcursorFindBestSize (XcursorFileHeader *fileHeader,
XcursorDim size,
int *nsizesp)
_XcursorFindBestSize(XcursorFileHeader *fileHeader,
XcursorDim size,
int *nsizesp)
{
unsigned int n;
int nsizes = 0;
XcursorDim bestSize = 0;
XcursorDim thisSize;
int nsizes = 0;
XcursorDim bestSize = 0;
XcursorDim thisSize;
if (!fileHeader || !nsizesp)
return 0;
for (n = 0; n < fileHeader->ntoc; n++)
{
if (fileHeader->tocs[n].type != XCURSOR_IMAGE_TYPE)
continue;
thisSize = fileHeader->tocs[n].subtype;
if (!bestSize || dist (thisSize, size) < dist (bestSize, size))
{
bestSize = thisSize;
nsizes = 1;
}
else if (thisSize == bestSize)
nsizes++;
for (n = 0; n < fileHeader->ntoc; n++) {
if (fileHeader->tocs[n].type != XCURSOR_IMAGE_TYPE)
continue;
thisSize = fileHeader->tocs[n].subtype;
if (!bestSize || dist(thisSize, size) < dist(bestSize, size)) {
bestSize = thisSize;
nsizes = 1;
} else if (thisSize == bestSize)
nsizes++;
}
*nsizesp = nsizes;
return bestSize;
}
static int
_XcursorFindImageToc (XcursorFileHeader *fileHeader,
XcursorDim size,
int count)
_XcursorFindImageToc(XcursorFileHeader *fileHeader,
XcursorDim size,
int count)
{
unsigned int toc;
XcursorDim thisSize;
unsigned int toc;
XcursorDim thisSize;
if (!fileHeader)
return 0;
for (toc = 0; toc < fileHeader->ntoc; toc++)
{
if (fileHeader->tocs[toc].type != XCURSOR_IMAGE_TYPE)
continue;
thisSize = fileHeader->tocs[toc].subtype;
if (thisSize != size)
continue;
if (!count)
break;
count--;
for (toc = 0; toc < fileHeader->ntoc; toc++) {
if (fileHeader->tocs[toc].type != XCURSOR_IMAGE_TYPE)
continue;
thisSize = fileHeader->tocs[toc].subtype;
if (thisSize != size)
continue;
if (!count)
break;
count--;
}
if (toc == fileHeader->ntoc)
return -1;
return -1;
return toc;
}
static XcursorImage *
_XcursorReadImage (XcursorFile *file,
XcursorFileHeader *fileHeader,
int toc)
_XcursorReadImage(XcursorFile *file,
XcursorFileHeader *fileHeader,
int toc)
{
XcursorChunkHeader chunkHeader;
XcursorImage head;
XcursorImage *image;
int n;
XcursorPixel *p;
XcursorChunkHeader chunkHeader;
XcursorImage head;
XcursorImage *image;
int n;
XcursorPixel *p;
if (!file || !fileHeader)
return NULL;
if (!_XcursorFileReadChunkHeader (file, fileHeader, toc, &chunkHeader))
return NULL;
if (!_XcursorReadUInt (file, &head.width))
return NULL;
if (!_XcursorReadUInt (file, &head.height))
return NULL;
if (!_XcursorReadUInt (file, &head.xhot))
return NULL;
if (!_XcursorReadUInt (file, &head.yhot))
return NULL;
if (!_XcursorReadUInt (file, &head.delay))
return NULL;
if (!_XcursorFileReadChunkHeader(file, fileHeader, toc, &chunkHeader))
return NULL;
if (!_XcursorReadUInt(file, &head.width))
return NULL;
if (!_XcursorReadUInt(file, &head.height))
return NULL;
if (!_XcursorReadUInt(file, &head.xhot))
return NULL;
if (!_XcursorReadUInt(file, &head.yhot))
return NULL;
if (!_XcursorReadUInt(file, &head.delay))
return NULL;
/* sanity check data */
if (head.width > XCURSOR_IMAGE_MAX_SIZE ||
head.height > XCURSOR_IMAGE_MAX_SIZE)
return NULL;
if (head.width > XCURSOR_IMAGE_MAX_SIZE || head.height > XCURSOR_IMAGE_MAX_SIZE)
return NULL;
if (head.width == 0 || head.height == 0)
return NULL;
return NULL;
if (head.xhot > head.width || head.yhot > head.height)
return NULL;
return NULL;
/* Create the image and initialize it */
image = XcursorImageCreate (head.width, head.height);
image = XcursorImageCreate(head.width, head.height);
if (image == NULL)
return NULL;
return NULL;
if (chunkHeader.version < image->version)
image->version = chunkHeader.version;
image->version = chunkHeader.version;
image->size = chunkHeader.subtype;
image->xhot = head.xhot;
image->yhot = head.yhot;
image->delay = head.delay;
n = image->width * image->height;
p = image->pixels;
while (n--)
{
if (!_XcursorReadUInt (file, p))
{
XcursorImageDestroy (image);
return NULL;
}
p++;
while (n--) {
if (!_XcursorReadUInt(file, p)) {
XcursorImageDestroy(image);
return NULL;
}
p++;
}
return image;
}
XcursorImages *
XcursorXcFileLoadImages (XcursorFile *file, int size)
XcursorXcFileLoadImages(XcursorFile *file, int size)
{
XcursorFileHeader *fileHeader;
XcursorDim bestSize;
int nsize;
XcursorImages *images;
int n;
int toc;
XcursorFileHeader *fileHeader;
XcursorDim bestSize;
int nsize;
XcursorImages *images;
int n;
int toc;
if (!file || size < 0)
return NULL;
fileHeader = _XcursorReadFileHeader (file);
return NULL;
fileHeader = _XcursorReadFileHeader(file);
if (!fileHeader)
return NULL;
bestSize = _XcursorFindBestSize (fileHeader, (XcursorDim) size, &nsize);
if (!bestSize)
{
_XcursorFileHeaderDestroy (fileHeader);
return NULL;
return NULL;
bestSize = _XcursorFindBestSize(fileHeader, (XcursorDim)size, &nsize);
if (!bestSize) {
_XcursorFileHeaderDestroy(fileHeader);
return NULL;
}
images = XcursorImagesCreate (nsize);
if (!images)
{
_XcursorFileHeaderDestroy (fileHeader);
return NULL;
images = XcursorImagesCreate(nsize);
if (!images) {
_XcursorFileHeaderDestroy(fileHeader);
return NULL;
}
for (n = 0; n < nsize; n++)
{
toc = _XcursorFindImageToc (fileHeader, bestSize, n);
if (toc < 0)
break;
images->images[images->nimage] = _XcursorReadImage (file, fileHeader,
toc);
if (!images->images[images->nimage])
break;
images->nimage++;
for (n = 0; n < nsize; n++) {
toc = _XcursorFindImageToc(fileHeader, bestSize, n);
if (toc < 0)
break;
images->images[images->nimage] = _XcursorReadImage(file, fileHeader,
toc);
if (!images->images[images->nimage])
break;
images->nimage++;
}
_XcursorFileHeaderDestroy (fileHeader);
if (images->nimage != nsize)
{
XcursorImagesDestroy (images);
images = NULL;
_XcursorFileHeaderDestroy(fileHeader);
if (images->nimage != nsize) {
XcursorImagesDestroy(images);
images = NULL;
}
return images;
}

View file

@ -32,45 +32,47 @@ extern "C" {
#include <stdint.h>
typedef int XcursorBool;
typedef uint32_t XcursorUInt;
typedef int XcursorBool;
typedef uint32_t XcursorUInt;
typedef XcursorUInt XcursorDim;
typedef XcursorUInt XcursorPixel;
typedef XcursorUInt XcursorDim;
typedef XcursorUInt XcursorPixel;
typedef struct _XcursorImage {
XcursorUInt version; /* version of the image data */
XcursorDim size; /* nominal size for matching */
XcursorDim width; /* actual width */
XcursorDim height; /* actual height */
XcursorDim xhot; /* hot spot x (must be inside image) */
XcursorDim yhot; /* hot spot y (must be inside image) */
XcursorUInt delay; /* animation delay to next frame (ms) */
XcursorPixel *pixels; /* pointer to pixels */
typedef struct _XcursorImage
{
XcursorUInt version; /* version of the image data */
XcursorDim size; /* nominal size for matching */
XcursorDim width; /* actual width */
XcursorDim height; /* actual height */
XcursorDim xhot; /* hot spot x (must be inside image) */
XcursorDim yhot; /* hot spot y (must be inside image) */
XcursorUInt delay; /* animation delay to next frame (ms) */
XcursorPixel *pixels; /* pointer to pixels */
} XcursorImage;
/*
* Other data structures exposed by the library API
*/
typedef struct _XcursorImages {
int nimage; /* number of images */
XcursorImage **images; /* array of XcursorImage pointers */
typedef struct _XcursorImages
{
int nimage; /* number of images */
XcursorImage **images; /* array of XcursorImage pointers */
} XcursorImages;
typedef struct _XcursorFile XcursorFile;
struct _XcursorFile {
void *closure;
int (*read) (XcursorFile *file, uint8_t *buf, int len);
XcursorBool (*skip) (XcursorFile *file, long offset);
XcursorBool (*seek) (XcursorFile *file, long offset);
struct _XcursorFile
{
void *closure;
int (*read)(XcursorFile *file, uint8_t *buf, int len);
XcursorBool (*skip)(XcursorFile *file, long offset);
XcursorBool (*seek)(XcursorFile *file, long offset);
};
XcursorImages *
XcursorXcFileLoadImages (XcursorFile *file, int size);
XcursorXcFileLoadImages(XcursorFile *file, int size);
void
XcursorImagesDestroy (XcursorImages *images);
void XcursorImagesDestroy(XcursorImages *images);
#ifdef __cplusplus
}