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Has anyone experience with adding libpng to your project? When I try to do so, it complains about not finding fp.h I looked for it on my disk and I found it in one of the sdks, but that can't be the right way to do it since its not in the other sdks
Also Merry Christmas!
Also I just found that if I comment out the fp.h it works fine on the simulator but on the device i get the following error
[Code from texture test2d to load a png using libpng added to CCTExtureCache addImage for png files] Error happens on last line of code, shown after code segment
-(CCTexture2D*) addPNGImage: (NSString*) newName
{
#define PNG_SIG_BYTES 8
//Load png
png_uint_32 width, height, width2, height2;
int bits = 0;
FILE *png_file = fopen([newName UTF8String], "rb");
NSAssert(png_file, @"PNG doesn't exists");
uint8_t header[PNG_SIG_BYTES];
fread(header, 1, PNG_SIG_BYTES, png_file);
NSAssert(!png_sig_cmp(header, 0, PNG_SIG_BYTES), @"Unkonw file format");
png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
NSAssert(png_ptr, @"No mem");
png_infop info_ptr = png_create_info_struct(png_ptr);
NSAssert(info_ptr, @"No mem");
png_infop end_info = png_create_info_struct(png_ptr);
NSAssert(end_info, @"No mem");
NSAssert(!setjmp(png_jmpbuf(png_ptr)), @"setjmp error");
The above assert fails. I have no idea what its trying to do but it works on the simulator and not the device here. Using 3.1 if that matters.
See the test/Texture2dTest.m. It uses libpng and it is working OK.
Right, I copied and pasted it just like they did and thats where I got the above error. Whats the jump thing about?
Man this is really killing me. I have the exact same code as the texture test. I tried the texture test on my device and it worked. I even tried making sure CCSpriteCache didn't use the new image load function until my specific file. No matter what I do it breaks on that jump. If anyone can help I would be really grateful.
Something I saw of note, the cocos2d project(and tests) use the simulator sdk and not the real sdk. fp.h only exists on my hard disk in the simulator sdks. However if I change my sdk to simulator as well, it still cannot find fp.h I am wondering if not using the fp.h is the difference between my app and the test app. The test app as an aside will not even compile if you force it to use math.h where as my app will.
I solved it by going to a different library heh.
Faikus
Member
I had the same problem when integrating OpenFeint. What works for me is replacing this block of code in pngconf.h:
# if defined(MACOS)
# if !defined(__MATH_H__) && !defined(__MATH_H) && !defined(__cmath__)
# include <fp.h>
# endif
# else
# include <math.h>
# endif
with this line:
#include <math.h>
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