1 files changed, 150 insertions, 0 deletions
diff --git a/arm9/lib/NitroSDK/src/GX_load3d.c b/arm9/lib/NitroSDK/src/GX_load3d.c
new file mode 100644
index 00000000..ae15f32e
--- /dev/null
+++ b/arm9/lib/NitroSDK/src/GX_load3d.c
@@ -0,0 +1,150 @@
+#include "global.h"
+#include "main.h"
+#include "gx.h"
+
+extern u32 GXi_DmaId;
+
+static u32 sTexLCDCBlk1 = 0;
+static u32 sSzTexBlk1 = 0;
+static u32 sTexLCDCBlk2 = 0;
+static s32 sTex = 0;
+
+static const struct
+{
+    u16     blk1;                      // 12 bit shift
+    u16     blk2;                      // 12 bit shift
+    u16     szBlk1;                    // 12 bit shift
+} sTexStartAddrTable[16] = {
+    {0, 0, 0},
+    {0x06800000 >> 12, 0, 0},
+    {0x06820000 >> 12, 0, 0},
+    {0x06800000 >> 12, 0, 0},
+    {0x06840000 >> 12, 0, 0},
+    {0x06800000 >> 12, 0x06840000 >> 12, 0x00020000 >> 12},
+    {0x06820000 >> 12, 0, 0},
+    {0x06800000 >> 12, 0, 0},
+    {0x06860000 >> 12, 0, 0},
+    {0x06800000 >> 12, 0x06860000 >> 12, 0x00020000 >> 12},
+    {0x06820000 >> 12, 0x06860000 >> 12, 0x00020000 >> 12},
+    {0x06800000 >> 12, 0x06860000 >> 12, 0x00040000 >> 12},
+    {0x06840000 >> 12, 0, 0},
+    {0x06800000 >> 12, 0x06840000 >> 12, 0x00020000 >> 12},
+    {0x06820000 >> 12, 0, 0},
+    {0x06800000 >> 12, 0, 0},
+};
+
+static s32 sTexPltt = 0;
+static u32 sTexPlttLCDCBlk = 0;
+
+static const u16 sTexPlttStartAddrTable[8] = {
+    0,
+    0x06880000 >> 12,
+    0x06890000 >> 12,
+    0x06880000 >> 12,
+    0x06894000 >> 12,
+    0,
+    0x06890000 >> 12,
+    0x06880000 >> 12
+};
+
+static s32 sClrImg = 0;
+static u32 sClrImgLCDCBlk = 0;
+
+ARM_FUNC void GX_BeginLoadTex(){
+    u32 temp = GX_ResetBankForTex();
+    sTex = (s32)temp;
+    sTexLCDCBlk1 = (u32)(sTexStartAddrTable[temp].blk1 << 0xC);
+    sTexLCDCBlk2 = (u32)(sTexStartAddrTable[temp].blk2 << 0xC);
+    sSzTexBlk1 = (u32)(sTexStartAddrTable[temp].szBlk1 << 0xC);
+}
+
+ARM_FUNC void GX_LoadTex(void *src, u32 offset, u32 size){
+    void *temp;
+    if (!sTexLCDCBlk2)
+    {
+        temp = (void *)(sTexLCDCBlk1 + offset);
+    }
+    else
+    {
+        if ((offset + size) < sSzTexBlk1)
+        {
+            temp = (void *)(sTexLCDCBlk1 + offset);
+        }
+        else if (offset >= sSzTexBlk1)
+        {
+            temp = (void *)(sTexLCDCBlk2 + offset - sSzTexBlk1);
+        }
+        else
+        {
+            void *temp2 = (void *)sTexLCDCBlk2;
+            u32 temp1 = sSzTexBlk1 - offset;
+            temp = (void *)(sTexLCDCBlk1 + offset);
+            GXi_DmaCopy32(GXi_DmaId, src, temp, temp1);
+            GXi_DmaCopy32Async(GXi_DmaId, (void *)((u8 *)src + temp1), temp2, (size - temp1), NULL, NULL);
+            return;
+        }
+    }
+    GXi_DmaCopy32Async(GXi_DmaId, src, temp, size, NULL, NULL);
+}
+
+ARM_FUNC void GX_EndLoadTex(){
+    GXi_WaitDma(GXi_DmaId);
+    GX_SetBankForTex(sTex);
+    sSzTexBlk1 = 0x0;
+    sTexLCDCBlk2 = 0x0;
+    sTexLCDCBlk1 = 0x0;
+    sTex = 0x0;
+}
+
+ARM_FUNC void GX_BeginLoadTexPltt(){
+    s32 temp = (s32)GX_ResetBankForTexPltt();
+    sTexPltt = temp;
+    sTexPlttLCDCBlk = (u32)(sTexPlttStartAddrTable[temp >> 4] << 0xC);
+}
+
+ARM_FUNC void GX_LoadTexPltt(void *src, u32 offset, u32 size){
+    GXi_DmaCopy32Async(GXi_DmaId, src, (void *)(sTexPlttLCDCBlk + offset), size, NULL, NULL);
+}
+
+ARM_FUNC void GX_EndLoadTexPltt(){
+    GXi_WaitDma(GXi_DmaId);
+    GX_SetBankForTexPltt(sTexPltt);
+    sTexPltt = 0x0;
+    sTexPlttLCDCBlk = 0x0;
+}
+
+ARM_FUNC void GX_BeginLoadClearImage(){
+    u32 temp = GX_ResetBankForClearImage();
+    sClrImg = (s32)temp;
+    switch (temp)
+    {
+    case 2:
+    case 3:
+        sClrImgLCDCBlk = 0x6800000;
+        return;
+    case 8:
+    case 12:
+        sClrImgLCDCBlk = 0x6840000;
+        return;
+    case 1:
+        sClrImgLCDCBlk = 0x67E0000;
+        return;
+    case 4:
+        sClrImgLCDCBlk = 0x6820000;
+    }
+}
+
+ARM_FUNC void GX_LoadClearImageColor(void *src, u32 size){
+    GXi_DmaCopy32Async(GXi_DmaId, src, (void *)(sClrImgLCDCBlk), size, NULL, NULL);
+}
+
+ARM_FUNC void GX_LoadClearImageDepth(void *src, u32 size){
+    GXi_DmaCopy32Async(GXi_DmaId, src, (void *)(sClrImgLCDCBlk + 0x20000), size, NULL, NULL);
+}
+
+ARM_FUNC void GX_EndLoadClearImage(){
+    GXi_WaitDma(GXi_DmaId);
+    GX_SetBankForClearImage(sClrImg);
+    sClrImg = 0x0;
+    sClrImgLCDCBlk = 0x0;
+}