diff --git a/GL/clip.c b/GL/clip.c
index 672dfa1..6928cc8 100644
--- a/GL/clip.c
+++ b/GL/clip.c
@@ -72,6 +72,10 @@ static inline void interpolateColour(const uint8_t* v1, const uint8_t* v2, const
 const uint32_t VERTEX_CMD_EOL = 0xf0000000;
 const uint32_t VERTEX_CMD = 0xe0000000;
 
+void clipTriangleStrip2(const ClipVertex* vertices, const unsigned int count, AlignedVector* outBuffer) {
+
+}
+
 void clipTriangleStrip(const ClipVertex* vertices, const unsigned int count, AlignedVector* outBuffer) __attribute__((optimize("fast-math")));
 void clipTriangleStrip(const ClipVertex* vertices, const unsigned int count, AlignedVector* outBuffer) {
 
diff --git a/GL/texture.c b/GL/texture.c
index 264c126..f77bd12 100644
--- a/GL/texture.c
+++ b/GL/texture.c
@@ -412,9 +412,15 @@ static GLuint _determinePVRFormat(GLint internalFormat, GLenum type) {
         /* OK so if we have something that requires alpha, we return 4444 unless
          * the type was already 1555 (1-bit alpha) in which case we return that
          */
-            return (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) ?
-                PVR_TXRFMT_ARGB1555 | PVR_TXRFMT_NONTWIDDLED :
-                PVR_TXRFMT_ARGB4444 | PVR_TXRFMT_NONTWIDDLED;
+            if(type == GL_UNSIGNED_SHORT_1_5_5_5_REV) {
+                return PVR_TXRFMT_ARGB1555 | PVR_TXRFMT_NONTWIDDLED;
+            } else if(type == GL_UNSIGNED_SHORT_1_5_5_5_REV_TWID_KOS) {
+                return PVR_TXRFMT_ARGB1555 | PVR_TXRFMT_TWIDDLED;
+            } else if(type == GL_UNSIGNED_SHORT_4_4_4_4_REV_TWID_KOS) {
+                return PVR_TXRFMT_ARGB4444 | PVR_TXRFMT_TWIDDLED;
+            } else {
+                return PVR_TXRFMT_ARGB4444 | PVR_TXRFMT_NONTWIDDLED;
+            }
         case GL_RED:
         case GL_RGB:
             /* No alpha? Return RGB565 which is the best we can do without using palettes */