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remove unnecessary functions which are in imglib

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brade%netscape.com 1998-12-15 22:27:03 +00:00
parent 08c31a25c3
commit 83958e66b4
1 changed files with 0 additions and 77 deletions
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77
webshell/tests/viewer/macToBeImplemented.cp
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@ -46,80 +46,3 @@ char * XP_FileReadLine(char * dest, int32 bufferSize, XP_File file)
PR_ASSERT(FALSE);
return NULL;
}
#include "il_strm.h"
/* Given the first few bytes of a stream, identify the image format */
static int
il_type(int suspected_type, const char *buf, int32 len)
{
int i;
if (len >= 4 && !strncmp(buf, "GIF8", 4))
{
return IL_GIF;
}
/* for PNG */
if (len >= 4 && ((unsigned char)buf[0]==0x89 &&
(unsigned char)buf[1]==0x50 &&
(unsigned char)buf[2]==0x4E &&
(unsigned char)buf[3]==0x47))
{
return IL_PNG;
}
/* JFIF files start with SOI APP0 but older files can start with SOI DQT
* so we test for SOI followed by any marker, i.e. FF D8 FF
* this will also work for SPIFF JPEG files if they appear in the future.
*
* (JFIF is 0XFF 0XD8 0XFF 0XE0 <skip 2> 0X4A 0X46 0X49 0X46 0X00)
*/
if (len >= 3 &&
((unsigned char)buf[0])==0xFF &&
((unsigned char)buf[1])==0xD8 &&
((unsigned char)buf[2])==0xFF)
{
return IL_JPEG;
}
/* no simple test for XBM vs, say, XPM so punt for now */
if (len >= 8 && !strncmp(buf, "#define ", 8) )
{
/* Don't contradict the given type, since this ID isn't definitive */
if ((suspected_type == IL_UNKNOWN) || (suspected_type == IL_XBM))
return IL_XBM;
}
if (len < 35)
{
/* ILTRACE(1,("il: too few bytes to determine type")); */
return suspected_type;
}
/* all the servers return different formats so root around */
for (i=0; i<28; i++)
{
if (!strncmp(&buf[i], "Not Fou", 7))
return IL_NOTFOUND;
}
return suspected_type;
}
/*
* determine what kind of image data we are dealing with
*/
extern "C"
int IL_Type(const char *buf, int32 len)
{
return il_type(IL_UNKNOWN, buf, len);
}
/* Set limit on approximate size, in bytes, of all pixmap storage used
by the imagelib. */
extern "C"
void IL_SetCacheSize(uint32 new_size)
{
}