set the alphapixels flag

diff --git a/s2tc.cpp b/s2tc.cpp
index a808329..809c6ed 100644 (file)
--- a/s2tc.cpp
+++ b/s2tc.cpp
@@ -589,12 +589,14 @@ int main(int argc, char **argv)
        }
 
        {
+               bool alphapixels = true; // FIXME
+
                uint32_t picsize = LittleLong(((image_width+3)/4) * ((image_height+3)/4) * blocksize);
                uint32_t ddssize = LittleLong(0x7c);
                uint32_t dds_flags = LittleLong(0xa1007);
                uint32_t one = LittleLong(1);
                uint32_t zero = LittleLong(0);
-               uint32_t dds_format_flags = LittleLong(0x04);
+               uint32_t dds_format_flags = LittleLong(alphapixels ? 0x05 : 0x04);
                uint32_t dds_caps1 = LittleLong(0x401008);
                uint32_t dds_caps2 = LittleLong(0);
                uint32_t dds_format_size = LittleLong(32);
@@ -627,13 +629,13 @@ int main(int argc, char **argv)
                fwrite(&dds_format_size, 4, 1, outfh);
                fwrite(&dds_format_flags, 4, 1, outfh);
                fwrite(fourcc, 4, 1, outfh);
-               fwrite("\x18\x00\x00\x00", 4, 1, outfh);
+               fwrite(alphapixels ? "\x20\x00\x00\x00" : "\x18\x00\x00\x00", 4, 1, outfh);
                fwrite("\x00\x00\xff\x00", 4, 1, outfh);
 
                //96
                fwrite("\x00\xff\x00\x00", 4, 1, outfh);
                fwrite("\xff\x00\x00\x00", 4, 1, outfh);
-               fwrite(&zero, 4, 1, outfh);
+               fwrite(alphapixels ? "\x00\x00\x00\xff" : "\x00\x00\x00\x00", 4, 1, outfh);
                fwrite(&dds_caps1, 4, 1, outfh);
                fwrite(&dds_caps2, 4, 1, outfh);
                fwrite(&zero, 4, 1, outfh);