diff --git a/hecl/.gitmodules b/hecl/.gitmodules
index ef1e6d60e..6fc402c1b 100644
--- a/hecl/.gitmodules
+++ b/hecl/.gitmodules
@@ -7,3 +7,7 @@
 [submodule "extern/boo"]
 	path = extern/boo
 	url = https://github.com/AxioDL/boo.git
+[submodule "extern/libjpeg-turbo"]
+	path = extern/libjpeg-turbo
+	url = https://github.com/jackoalan/libjpeg-turbo.git
+	branch = thp
diff --git a/hecl/extern/CMakeLists.txt b/hecl/extern/CMakeLists.txt
index c1fefa493..329baea28 100644
--- a/hecl/extern/CMakeLists.txt
+++ b/hecl/extern/CMakeLists.txt
@@ -3,3 +3,4 @@ add_subdirectory(libSquish)
 add_subdirectory(xxhash)
 add_subdirectory(athena)
 add_subdirectory(libpng)
+add_subdirectory(libjpeg-turbo)
diff --git a/hecl/extern/libjpeg-turbo b/hecl/extern/libjpeg-turbo
new file mode 160000
index 000000000..51d62f5cd
--- /dev/null
+++ b/hecl/extern/libjpeg-turbo
@@ -0,0 +1 @@
+Subproject commit 51d62f5cdf7bd2a9dc0c41f9e7eddd6c186c2cc1
diff --git a/hecl/include/hecl/hecl.hpp b/hecl/include/hecl/hecl.hpp
index 9f459e328..b45f76e13 100644
--- a/hecl/include/hecl/hecl.hpp
+++ b/hecl/include/hecl/hecl.hpp
@@ -1205,6 +1205,16 @@ static inline int32_t SBig(int32_t val) {return bswap32(val);}
 static inline uint32_t SBig(uint32_t val) {return bswap32(val);}
 static inline int64_t SBig(int64_t val) {return bswap64(val);}
 static inline uint64_t SBig(uint64_t val) {return bswap64(val);}
+static inline float SBig(float val)
+{
+    int32_t ival = bswap32(*((int32_t*)(&val)));
+    return *((float*)(&ival));
+}
+static inline double SBig(double val)
+{
+    int64_t ival = bswap64(*((int64_t*)(&val)));
+    return *((double*)(&ival));
+}
 #define SBIG(q) ( ( (q) & 0x000000FF ) << 24 | ( (q) & 0x0000FF00 ) <<  8 \
                 | ( (q) & 0x00FF0000 ) >>  8 | ( (q) & 0xFF000000 ) >> 24 )
 
@@ -1214,6 +1224,8 @@ static inline int32_t SLittle(int32_t val) {return val;}
 static inline uint32_t SLittle(uint32_t val) {return val;}
 static inline int64_t SLittle(int64_t val) {return val;}
 static inline uint64_t SLittle(uint64_t val) {return val;}
+static inline float SLittle(float val) {return val;}
+static inline double SLittle(double val) {return val;}
 #define SLITTLE(q) (q)
 #else
 static inline int16_t SLittle(int16_t val) {return bswap16(val);}
@@ -1222,6 +1234,16 @@ static inline int32_t SLittle(int32_t val) {return bswap32(val);}
 static inline uint32_t SLittle(uint32_t val) {return bswap32(val);}
 static inline int64_t SLittle(int64_t val) {return bswap64(val);}
 static inline uint64_t SLittle(uint64_t val) {return bswap64(val);}
+static inline float SLittle(float val)
+{
+    int32_t ival = bswap32(*((int32_t*)(&val)));
+    return *((float*)(&ival));
+}
+static inline double SLittle(double val)
+{
+    int64_t ival = bswap64(*((int64_t*)(&val)));
+    return *((double*)(&ival));
+}
 #define SLITTLE(q) ( ( (q) & 0x000000FF ) << 24 | ( (q) & 0x0000FF00 ) <<  8 \
                    | ( (q) & 0x00FF0000 ) >>  8 | ( (q) & 0xFF000000 ) >> 24 )
 
@@ -1231,6 +1253,8 @@ static inline int32_t SBig(int32_t val) {return val;}
 static inline uint32_t SBig(uint32_t val) {return val;}
 static inline int64_t SBig(int64_t val) {return val;}
 static inline uint64_t SBig(uint64_t val) {return val;}
+static inline float SBig(float val) {return val;}
+static inline double SBig(double val) {return val;}
 #define SBIG(q) (q)
 #endif