mewin/libpng
1
0
Fork 0
mirror of https://git.code.sf.net/p/libpng/code.git synced 2025-07-10 18:04:09 +02:00
Code Issues Projects Releases Wiki Activity

Imported from libpng-1.0.5d.tar

Browse Source
This commit is contained in:
Glenn Randers-Pehrson
1999-11-28 23:32:18 -06:00
parent 5379b24536
commit 074af5e9ca
37 changed files with 422 additions and 185 deletions
Download Patch File Download Diff File Expand all files Collapse all files

63
png.c
View File

@@ -1,7 +1,7 @@
/* png.c - location for general purpose libpng functions
*
* libpng version 1.0.5c - November 27, 1999
* libpng version 1.0.5d - November 29, 1999
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
* Copyright (c) 1998, 1999 Glenn Randers-Pehrson
@@ -16,39 +16,32 @@
* string defined in png.h.
*/
#ifdef PNG_GLOBAL_ARRAYS
#ifdef PNG_USE_GLOBAL_ARRAYS
/* png_libpng_ver was changed to a function in version 1.0.5c */
char png_libpng_ver[12] = "1.0.5c";
char png_libpng_ver[12] = "1.0.5d";
/* png_sig was changed to a function in version 1.0.5c */
/* Place to hold the signature string for a PNG file. */
png_byte FARDATA png_sig[8] = {137, 80, 78, 71, 13, 10, 26, 10};
/* This was moved to pngtypes.h and other places in version 1.0.5c.
* It was nicer having them all in one place, but it interfered with
* people building DLL's. */
/* Constant strings for known chunk types. If you need to add a chunk,
* add a string holding the name here. If you want to make the code
* portable to EBCDIC machines, use ASCII numbers, not characters.
*/
png_byte FARDATA png_IHDR[5] = { 73, 72, 68, 82, '\0'};
png_byte FARDATA png_IDAT[5] = { 73, 68, 65, 84, '\0'};
png_byte FARDATA png_IEND[5] = { 73, 69, 78, 68, '\0'};
png_byte FARDATA png_PLTE[5] = { 80, 76, 84, 69, '\0'};
png_byte FARDATA png_bKGD[5] = { 98, 75, 71, 68, '\0'};
png_byte FARDATA png_cHRM[5] = { 99, 72, 82, 77, '\0'};
png_byte FARDATA png_gAMA[5] = {103, 65, 77, 65, '\0'};
png_byte FARDATA png_hIST[5] = {104, 73, 83, 84, '\0'};
png_byte FARDATA png_oFFs[5] = {111, 70, 70, 115, '\0'};
png_byte FARDATA png_pCAL[5] = {112, 67, 65, 76, '\0'};
png_byte FARDATA png_pHYs[5] = {112, 72, 89, 115, '\0'};
png_byte FARDATA png_sBIT[5] = {115, 66, 73, 84, '\0'};
png_byte FARDATA png_sRGB[5] = {115, 82, 71, 66, '\0'};
png_byte FARDATA png_tEXt[5] = {116, 69, 88, 116, '\0'};
png_byte FARDATA png_tIME[5] = {116, 73, 77, 69, '\0'};
png_byte FARDATA png_tRNS[5] = {116, 82, 78, 83, '\0'};
png_byte FARDATA png_zTXt[5] = {122, 84, 88, 116, '\0'};
/* Invoke global declarations for constant strings for known chunk types */
PNG_IHDR;
PNG_IDAT;
PNG_IEND;
PNG_PLTE;
PNG_bKGD;
PNG_cHRM;
PNG_gAMA;
PNG_hIST;
PNG_oFFs;
PNG_pCAL;
PNG_pHYs;
PNG_sBIT;
PNG_sRGB;
PNG_tEXt;
PNG_tIME;
PNG_tRNS;
PNG_zTXt;
/* arrays to facilitate easy interlacing - use pass (0 - 6) as index */
@@ -370,15 +363,15 @@ png_sig_bytes(png_structp png_ptr)
{
const png_byte png_sig_numbers[9] = {137, 80, 78, 71, 13, 10, 26, 10, 0};
if (png_ptr == NULL) /* silence compiler warning */
return ((png_bytep) strdup(png_sig_numbers));
return ((png_bytep) strdup(png_sig_numbers));
return ((png_bytep) strdup((png_const_charp)png_sig_numbers));
return ((png_bytep) strdup((png_const_charp)png_sig_numbers));
}
png_charp
png_get_copyright(png_structp png_ptr)
{
if (png_ptr != NULL || png_ptr == NULL) /* silence compiler warning */
return ("\n libpng version 1.0.5c - November 27, 1999\n\
return ("\n libpng version 1.0.5d - November 29, 1999\n\
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.\n\
Copyright (c) 1996, 1997 Andreas Dilger\n\
Copyright (c) 1998, 1999 Glenn Randers-Pehrson\n");
@@ -396,8 +389,8 @@ png_get_libpng_ver(png_structp png_ptr)
{
/* Version of *.c files used when building libpng */
if(png_ptr != NULL) /* silence compiler warning about unused png_ptr */
return("1.0.5c");
return("1.0.5c");
return("1.0.5d");
return("1.0.5d");
}
png_charp
@@ -421,8 +414,8 @@ png_get_header_version(png_structp png_ptr)
/* Generate a compiler error if there is an old png.h in the search path. */
void
png_check_version
(version_1_0_5c png_h_is_not_version_1_0_5c)
(version_1_0_5d png_h_is_not_version_1_0_5d)
{
if(png_h_is_not_version_1_0_5c == NULL)
if(png_h_is_not_version_1_0_5d == NULL)
return;
}