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Index > Windows > pnglib fasm port?

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Ali.Z



Joined: 08 Jan 2018
Posts: 676
Ali.Z 15 May 2024, 09:36
is there any known pnglib port to fasm? pnglib made in 2000s using masm.

i would port it to fasm, but i dont understand masm stuff, or at minimum try to make it a shared library (dll), not sure how difficult the task is.

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Post 15 May 2024, 09:36
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macomics



Joined: 26 Jan 2021
Posts: 919
Location: Russia
macomics 15 May 2024, 14:59
Just try to specify the -Tpd key for link.exe and append the entry point to the dll to the source.
Post 15 May 2024, 14:59
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Ali.Z



Joined: 08 Jan 2018
Posts: 676
Ali.Z 15 May 2024, 21:15
there is no tpd option.

Quote:
helper.obj : error LNK2001: unresolved external symbol _GetProcessHeap@0
helper.obj : error LNK2001: unresolved external symbol _HeapAlloc@12
helper.obj : error LNK2001: unresolved external symbol _HeapFree@12
PNG_CreateBitmap.obj : error LNK2001: unresolved external symbol _GetDC@4
PNG_CreateBitmap.obj : error LNK2001: unresolved external symbol _ReleaseDC@8
PNG_CreateBitmap.obj : error LNK2001: unresolved external symbol _CreateDIBSection@24
PNG_CreateBitmap.obj : error LNK2001: unresolved external symbol _CreateDIBitmap@24
PNG_LoadFile.obj : error LNK2001: unresolved external symbol _CloseHandle@4
PNG_LoadFile.obj : error LNK2001: unresolved external symbol _CreateFileA@28
PNG_LoadFile.obj : error LNK2001: unresolved external symbol _GetFileSize@8
PNG_LoadFile.obj : error LNK2001: unresolved external symbol _ReadFile@20
PNG_LoadResource.obj : error LNK2001: unresolved external symbol _FindResourceA@12
PNG_LoadResource.obj : error LNK2001: unresolved external symbol _LoadResource@8
PNG_LoadResource.obj : error LNK2001: unresolved external symbol _SizeofResource@8
pnglib_dll.dll : fatal error LNK1120: 14 unresolved externals


help anybody?

edit:
after like 20 trial n error i was able to build the dll, need to test if it works correctly tho.
will post the result after testing.

edit2:
yes works correctly.

edi3:
for anyone wants to use pnglib with fasm, you must build the dll, the steps:

make pnglib.def ;using text editor
paste the following in:
pnglib.def wrote:
LIBRARY pnglib
EXPORTS
PNG_Init
PNG_Cleanup
PNG_CreateBitmap
PNG_Decode
PNG_GetPalette
PNG_LoadCustom
PNG_LoadFile
PNG_LoadResource
PNG_OutputRaw


dont forget to create dllmain.
then use the following commands:
Quote:
ml /c /IC:\masm32\include\ /coff *.asm
link /SUBSYSTEM:WINDOWS /LIBPATH:C:\masm32\lib\ /DLL /IMPLIB:pnglib.lib /DEF:pnglib.def *.obj

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