Name

SPVM::Resource::Libpng - The Resource of The libpng Library

Description

SPVM::Resource::Libpng class in SPVM is a resource class for the libpng library.

Usage

MyClass.config:

my $config = SPVM::Builder::Config->new_c99(file => __FILE__);

$config->use_resource('Resource::Zlib');
$config->use_resource('Resource::Libpng');

$config;

MyClass.c:

#include <png.h>

int32_t SPVM__MyClass__test(SPVM_ENV* env, SPVM_VALUE* stack) {
  
  png_colorp palette;
  
  return 0;
}

Original Product

libpng

Original Product Version

libpng v1.6.45

Language

The C language

Language Specification

C99

Required Resources

• SPVM::Resource::Zlib

Header Files

• pngconf.h

• pngdebug.h

• png.h

• pnginfo.h

• pnglibconf.h

• pngpriv.h

• pngstruct.h

Source Files

• png.c

• pngerror.c

• pngget.c

• pngmem.c

• pngpread.c

• pngread.c

• pngrio.c

• pngrtran.c

• pngrutil.c

• pngset.c

• pngtest.c

• pngtrans.c

• pngwio.c

• pngwrite.c

• pngwtran.c

• pngwutil.c

• arm/arm_init.c

• arm/filter_neon_intrinsics.c

• arm/filter_neon.S

• arm/palette_neon_intrinsics.c

How to Create Resource

Donwload

mkdir -p .tmp
git clone https://github.com/glennrp/libpng.git .tmp/libpng
git -C .tmp/libpng checkout tags/v1.6.45 -b branch_vv1.6.45
git -C .tmp/libpng branch

Extracting Header Files

The header files of libpng is copied into the include directory by the following command.

rsync -av --include='*.h' --exclude='*' .tmp/libpng/ lib/SPVM/Resource/Libpng.native/include/

cp lib/SPVM/Resource/Libpng.native/src/scripts/pnglibconf.h.prebuilt lib/SPVM/Resource/Libpng.native/include/pnglibconf.h

Extracting Source Files

The source files of libpng are copied into the src directory by the following command.

rsync -av --exclude='.git' .tmp/libpng/ lib/SPVM/Resource/Libpng.native/src/

The used source files are extracted by the following command.

find lib/SPVM/Resource/Libpng.native/src/* | perl -p -e 's|^\Qlib/SPVM/Resource/Libpng.native/src/||' | grep -P '^\w+\.c$' | grep -v -P '^example\.c'

Repository

SPVM::Resource::Libpng - Github

Copyright & License

Copyright (c) 2023 Yuki Kimoto

MIT License

cpanm SPVM::Resource::Libpng

perl -MCPAN -e shell
install SPVM::Resource::Libpng