libultra cleanup (#215)

* cleanup libultra

* fixes

- use quotes instead of <> for includes
- add macros for zelda specific thread priorities
- fix Makefile
- properly format the remaining pfs structs

* fix button macros + add CHECK_BTN_ANY/CHECK_BTN_ALL

* remove ULTRA_ABS

* fix includes

* update z_player.c/z_lib.c + run format.sh

* merge upstream/master

* fix include in En_Goroiwa

* fix includes

1 files changed, 28 insertions, 0 deletions

diff --git a/src/libultra_code_O2/guS2DInitBg.c b/src/libultra_code_O2/guS2DInitBg.c
new file mode 100644
index 000000000..0d75648f9
--- /dev/null
+++ b/src/libultra_code_O2/guS2DInitBg.c
@@ -0,0 +1,28 @@
+#include "global.h"
+
+void guS2DInitBg(uObjBg* bg) {
+    u16 shift;
+    u32 size;
+    s32 tmem;
+
+    tmem = (bg->b.imageFmt == G_IM_FMT_CI) ? 0x100 : 0x200;
+
+    shift = (6 - bg->b.imageSiz);
+    if (bg->b.imageLoad == G_BGLT_LOADBLOCK) {
+        bg->b.tmemW = bg->b.imageW >> shift;
+        bg->b.tmemH = (tmem / bg->b.tmemW) * 4;
+        bg->b.tmemSizeW = bg->b.tmemW * 2;
+        bg->b.tmemSize = bg->b.tmemH * bg->b.tmemSizeW;
+        bg->b.tmemLoadSH = (bg->b.tmemSize >> 1) - 1;
+        bg->b.tmemLoadTH = (0x7FF / bg->b.tmemW) + 1;
+    } else { // G_BGLT_LOADTILE
+        bg->b.tmemW = (bg->b.frameW >> shift) + 3;
+        bg->b.tmemH = (tmem / bg->b.tmemW) * 4;
+        bg->b.tmemSizeW = (bg->b.imageW >> shift) * 2;
+
+        size = bg->b.tmemH * bg->b.tmemSizeW;
+        bg->b.tmemSize = (size >> 16);
+        bg->b.tmemLoadSH = (size >> 0) & 0xFFFF;
+        bg->b.tmemLoadTH = bg->b.tmemH - 1;
+    }
+}