Add lua-deflate, a minimal deflate compression library for Lua

This commit is contained in:
Matthias Schiffer 2015-04-23 01:39:11 +02:00
parent db5699bede
commit 1b7dd58099
4 changed files with 1979 additions and 0 deletions

32
libs/lua-deflate/Makefile Normal file
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include $(TOPDIR)/rules.mk
PKG_NAME:=lua-deflate
PKG_VERSION:=1
PKG_LICENSE:=BSD-2-Clause
PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
include $(INCLUDE_DIR)/package.mk
include $(INCLUDE_DIR)/cmake.mk
define Package/lua-deflate
SECTION:=libs
CATEGORY:=Libraries
TITLE:=A minimal deflate compression library for Lua
DEPENDS:=+lua
endef
CMAKE_OPTIONS += -DCMAKE_BUILD_TYPE:STRING=MINSIZEREL
define Build/Prepare
mkdir -p $(PKG_BUILD_DIR)
$(CP) ./src/* $(PKG_BUILD_DIR)/
endef
define Package/lua-deflate/install
$(INSTALL_DIR) $(1)/usr/lib/lua
$(CP) $(PKG_INSTALL_DIR)/usr/lib/lua/deflate.so $(1)/usr/lib/lua/
endef
$(eval $(call BuildPackage,lua-deflate))

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cmake_minimum_required(VERSION 2.6)
project(lua-deflate C)
set(LUA_MODULE_PATH "${CMAKE_INSTALL_PREFIX}/lib/lua" CACHE PATH "Lua module target path")
find_package(Lua51 REQUIRED)
set_property(DIRECTORY PROPERTY COMPILE_DEFINITIONS _GNU_SOURCE)
include_directories(${LUA_INCLUDE_DIR})
add_library(deflate MODULE deflate.c)
set_property(TARGET deflate PROPERTY COMPILE_FLAGS "-Wall -std=c99 -fno-strict-aliasing")
set_property(TARGET deflate PROPERTY PREFIX "")
target_link_libraries(deflate ${LUA_LIBRARIES})
install(TARGETS deflate DESTINATION ${LUA_MODULE_PATH})

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/*
Copyright (c) 2015, Matthias Schiffer <mschiffer@universe-factory.net>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "miniz.c"
#include <lua.h>
#include <lauxlib.h>
#include <lualib.h>
#include <stdlib.h>
static int l_compress(lua_State *L) {
size_t in_length;
const unsigned char *in = (unsigned char *)luaL_checklstring(L, 1, &in_length);
mz_ulong out_length = mz_compressBound(in_length);
unsigned char *out = malloc(out_length);
int status = mz_compress(out, &out_length, in, in_length);
if (status) {
free(out);
lua_pushnil(L);
lua_pushstring(L, mz_error(status));
return 2;
}
lua_pushlstring(L, (const char*)out, out_length);
free(out);
return 1;
}
static const luaL_reg R[] = {
{"compress", l_compress},
{NULL, NULL },
};
LUALIB_API int luaopen_deflate(lua_State *L) {
luaL_register(L, "deflate", R);
return 1;
}

1865
libs/lua-deflate/src/miniz.c Normal file

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