Decompile GX_load3d.s

1 files changed, 157 insertions, 0 deletions

diff --git a/arm9/lib/src/GX_load3d.c b/arm9/lib/src/GX_load3d.c
new file mode 100644
index 00000000..9ae7427a
--- /dev/null
+++ b/arm9/lib/src/GX_load3d.c
@@ -0,0 +1,157 @@
+#include "global.h"
+#include "main.h"
+#include "gx.h"
+
+extern u32 gUnk02106814;
+
+extern u32 gUnk021D3410;
+extern u32 gUnk021D3400;
+extern u32 gUnk021D3414;
+extern u32 gUnk021D3418;
+
+//probably structs of length 0x6
+extern u16 gUnk02103B4C[];
+extern u16 gUnk02103B4E[];
+extern u16 gUnk02103B50[];
+
+extern u32 gUnk021D3408;
+extern u32 gUnk021D3404;
+extern u16 gUnk02103B3C[];
+
+extern s32 gUnk021D33FC;
+extern u32 gUnk021D340C;
+
+static inline void _GX_Load_16(void *src, void *dst, u32 size){
+    if (gUnk02106814 != -1 && size > 0x1C)
+    {
+        MI_DmaCopy16(gUnk02106814, src, dst, size);
+    }
+    else
+    {
+        MIi_CpuCopy16(src, dst, size);
+    }
+}
+
+static inline void _GX_Load_32(void *src, void *dst, u32 size){
+    if (gUnk02106814 != -1 && size > 0x30)
+    {
+        MI_DmaCopy32(gUnk02106814, src, dst, size);
+    }
+    else
+    {
+        MIi_CpuCopy32(src, dst, size);
+    }
+}
+
+static inline void _GX_Load_32_Async(void *src, void *dst, u32 size, void *func, void *ptr){
+    if (gUnk02106814 != -1)
+    {
+        MI_DmaCopy32Async(gUnk02106814, src, dst, size, func, ptr);
+    }
+    else
+    {
+        MIi_CpuCopy32(src, dst, size);
+    }
+}
+
+void GX_BeginLoadTex(){
+    u32 temp = GX_ResetBankForTex();
+    gUnk021D3410 = temp;
+    gUnk021D3400 = gUnk02103B4C[temp * 3] << 0xC;
+    gUnk021D3414 = gUnk02103B4E[temp * 3] << 0xC;
+    gUnk021D3418 = gUnk02103B50[temp * 3] << 0xC;
+}
+
+void GX_LoadTex(void *src, u32 offset, u32 size){
+    void *temp;
+    if (!gUnk021D3414)
+    {
+        temp = (void *)(gUnk021D3400 + offset);
+    }
+    else
+    {
+        if ((offset + size) < gUnk021D3418)
+        {
+            temp = (void *)(gUnk021D3400 + offset);
+        }
+        else if (offset >= gUnk021D3418)
+        {
+            temp = (void *)(gUnk021D3414 + offset - gUnk021D3418);
+        }
+        else
+        {
+            void *temp2 = (void *)gUnk021D3414;
+            u32 temp1 = gUnk021D3418 - offset;
+            temp = (void *)(gUnk021D3400 + offset);
+            _GX_Load_32(src, temp, temp1);
+            _GX_Load_32_Async((void *)((u8 *)src + temp1), temp2, (size - temp1), NULL, NULL);
+            return;
+        }
+    }
+    _GX_Load_32_Async(src, temp, size, NULL, NULL);
+}
+
+void GX_EndLoadTex(){
+    if (gUnk02106814 != -1)
+        MI_WaitDma(gUnk02106814);
+    GX_SetBankForTex(gUnk021D3410);
+    gUnk021D3418 = 0x0;
+    gUnk021D3414 = 0x0;
+    gUnk021D3400 = 0x0;
+    gUnk021D3410 = 0x0;
+}
+
+void GX_BeginLoadTexPltt(){
+    s32 temp = GX_ResetBankForTexPltt();
+    gUnk021D3408 = temp;
+    gUnk021D3404 = gUnk02103B3C[temp >> 4] << 0xC;
+}
+
+void GX_LoadTexPltt(void *src, u32 offset, u32 size){
+    _GX_Load_32_Async(src, (void *)(gUnk021D3404 + offset), size, NULL, NULL);
+}
+
+void GX_EndLoadTexPltt(){
+    if (gUnk02106814 != -1)
+        MI_WaitDma(gUnk02106814);
+    GX_SetBankForTexPltt(gUnk021D3408);
+    gUnk021D3408 = 0x0;
+    gUnk021D3404 = 0x0;
+}
+
+void GX_BeginLoadClearImage(){
+    s32 temp = GX_ResetBankForClearImage();
+    gUnk021D33FC = temp;
+    switch (temp)
+    {
+    case 2:
+    case 3:
+        gUnk021D340C = 0x6800000;
+        return;
+    case 8:
+    case 12:
+        gUnk021D340C = 0x6840000;
+        return;
+    case 1:
+        gUnk021D340C = 0x67E0000;
+        return;
+    case 4:
+        gUnk021D340C = 0x6820000;
+    }
+}
+
+void GX_LoadClearImageColor(void *src, u32 size){
+    _GX_Load_32_Async(src, (void *)(gUnk021D340C), size, NULL, NULL);
+}
+
+void GX_LoadClearImageDepth(void *src, u32 size){
+    _GX_Load_32_Async(src, (void *)(gUnk021D340C + 0x20000), size, NULL, NULL);
+}
+
+void GX_EndLoadClearImage(){
+    if (gUnk02106814 != -1)
+        MI_WaitDma(gUnk02106814);
+    GX_SetBankForClearImage(gUnk021D33FC);
+    gUnk021D33FC = 0x0;
+    gUnk021D340C = 0x0;
+}