libjpeg-turbo: Add new package

It's faster than regular libjpeg with ASM optimizations for various
platforms. Tests with djpeg indicate that it's twice as fast.

This is meant to replace the regular libjpeg.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/libjpeg-turbo/Makefile

@@ -0,0 +1,94 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=libjpeg-turbo
+PKG_VERSION:=2.0.5
+PKG_RELEASE:=1
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=@SF/$(PKG_NAME)
+PKG_HASH:=16f8f6f2715b3a38ab562a84357c793dd56ae9899ce130563c72cd93d8357b5d
+
+PKG_MAINTAINER:=Rosen Penev <rosenp@gmail.com>
+PKG_LICENSE:=BSD-3-Clause IJG zlib
+PKG_LICENSE_FILES:=LICENSE.md
+
+PKG_USE_MIPS16:=0 #Allows ASM compilation for speed.
+PKG_BUILD_PARALLEL:=1
+
+include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/cmake.mk
+
+define Package/libjpeg-turbo/Default
+  TITLE:=libjpeg-turbo
+  URL:=https://www.libjpeg-turbo.org/
+endef
+
+define Package/libjpeg-turbo
+  $(call Package/libjpeg-turbo/Default)
+  SECTION:=libs
+  CATEGORY:=Libraries
+  TITLE+= runtime library
+  PROVIDES:=libjpeg
+endef
+
+define Package/libjpeg-turbo-utils
+  $(call Package/libjpeg-turbo/Default)
+  SECTION:=utils
+  CATEGORY:=Utilities
+  SUBMENU:=Image Manipulation
+  DEPENDS:=+libjpeg-turbo
+  TITLE+= manipulation tools
+  PROVIDES:=jpeg-tools
+endef
+
+define Package/libjpeg-turbo/description
+	libjpeg-turbo is a speed focused fork of libjpeg.
+endef
+
+define Package/libjpeg-turbo-utils/description
+	These are the JPEG utilities that come with libjpeg-turbo.
+endef
+
+CMAKE_OPTIONS += \
+	-DENABLE_SHARED=ON \
+	-DENABLE_STATIC=OFF \
+	-DREQUIRE_SIMD=OFF \
+	-DWITH_12BIT=OFF \
+	-DWITH_ARITH_DEC=OFF \
+	-DWITH_ARITH_ENC=OFF \
+	-DWITH_JAVA=OFF \
+	-DWITH_JPEG7=OFF \
+	-DWITH_JPEG8=OFF \
+	-DWITH_MEM_SRCDST=OFF \
+	-DWITH_SIMD=O$(if $(findstring mips,$(CONFIG_ARCH)),FF,N) \
+	-DWITH_TURBOJPEG=OFF
+
+define Build/InstallDev
+	$(INSTALL_DIR) $(1)/usr/include
+	$(CP) $(PKG_INSTALL_DIR)/usr/include/*.h $(1)/usr/include/
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libjpeg.so* $(1)/usr/lib/
+	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/*.pc $(1)/usr/lib/pkgconfig/
+	$(SED) 's,/usr/include,$$$${prefix}/include,g' $(1)/usr/lib/pkgconfig/libjpeg.pc
+	$(SED) 's,/usr/lib,$$$${exec_prefix}/lib,g' $(1)/usr/lib/pkgconfig/libjpeg.pc
+	$(SED) 's,/usr/include,$$$${prefix}/include,g' $(1)/usr/lib/pkgconfig/libturbojpeg.pc
+	$(SED) 's,/usr/lib,$$$${exec_prefix}/lib,g' $(1)/usr/lib/pkgconfig/libturbojpeg.pc
+endef
+
+define Package/libjpeg-turbo/install
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libjpeg.so* $(1)/usr/lib
+endef
+
+define Package/libjpeg-turbo-utils/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/rdjpgcom $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/wrjpgcom $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/cjpeg $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/djpeg $(1)/usr/bin
+	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/jpegtran $(1)/usr/bin
+endef
+
+$(eval $(call BuildPackage,libjpeg-turbo))
+$(eval $(call BuildPackage,libjpeg-turbo-utils))