TGA & Endianness

1 files changed, 6 insertions, 2 deletions

diff --git a/lib/Image.cc b/lib/Image.cc
index 9b41b4e..0848e8b 100644
--- a/lib/Image.cc
+++ b/lib/Image.cc
@@ -39,6 +39,10 @@ void Image::SetPixel(unsigned int px, unsigned int py, Color c) {
     img[x * py + px] = c;
 }
 
+#ifndef WORDS_BIGENDIAN
+#define WORDS_BIGENDIAN 0
+#endif
+
 bool Image::Prepare(unsigned int f) {
     if (GetSize()) return false;
     
@@ -55,8 +59,8 @@ bool Image::Prepare(unsigned int f) {
 	    Header.CM_EntrySize = 0;
 	    Header.IS_XOrigin = 0;
 	    Header.IS_YOrigin = 0;
-	    Header.IS_Width = x;
-	    Header.IS_Height = y;
+	    Header.IS_Width = WORDS_BIGENDIAN ? ((x & 0xff) << 8) || ((x & 0xff00) >> 8) : x;
+	    Header.IS_Height = WORDS_BIGENDIAN ? ((y & 0xff) << 8) || ((y & 0xff00) >> 8) : y;
 	    Header.IS_Depth = 32;
 	    Header.IS_Descriptor = 0x20;