title_screen: data and code thru sub_8078C9C
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PikalaxALT
@@ -0,0 +1,192 @@
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#include "global.h"
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#include "malloc.h"
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#include "palette.h"
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#include "gpu_regs.h"
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#include "bg.h"
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#include "task.h"
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#include "main.h"
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#include "new_menu_helpers.h"
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#include "m4a.h"
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#include "scanline_effect.h"
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#include "constants/songs.h"
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EWRAM_DATA u8 gUnknown_2037F30 = 0;
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void sub_8078B34(void);
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void sub_8078B9C(void);
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void sub_8078BB4(void);
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void sub_8078BEC(u8 taskId);
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void sub_8078C24(u8 taskId);
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void sub_8078C90(s16 * data, u8 a1);
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void sub_8078C9C(s16 * data);
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void sub_8078D24(s16 * data);
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void sub_8078DA4(s16 * data);
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void sub_8078FC4(s16 * data);
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void sub_80790CC(s16 * data);
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void sub_80791C0(s16 * data);
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void sub_8079708(void);
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void sub_8079620(void);
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void sub_8079648(void);
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void sub_8079A10(s16 a0);
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const u8 gUnknown_83BF58C[] = INCBIN_U8("data/graphics/title_screen/unk_83BF58C.4bpp.lz");
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const u8 gUnknown_83BF5A8[] = INCBIN_U8("data/graphics/title_screen/unk_83BF5A8.bin.lz");
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extern const struct BgTemplate gUnknown_83BFB74[4];
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extern const void (*const gUnknown_83BFB84[])(s16 * data);
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/*graphics.h*/
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extern const u16 gUnknown_8EAB6C4[];
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extern const u8 gUnknown_8EAB8C4[];
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extern const u8 gUnknown_8EAD390[];
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extern const u16 gUnknown_8EAD5E8[];
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extern const u8 gUnknown_8EAD608[];
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extern const u8 gUnknown_8EADEE4[];
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extern const u16 gUnknown_8EAE094[];
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extern const u8 gUnknown_8EAE0B4[];
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extern const u8 gUnknown_8EAE374[];
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void CB2_InitTitleScreen(void)
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{
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switch (gMain.state)
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{
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default:
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gMain.state = 0;
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// fallthrough
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case 0:
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SetVBlankCallback(NULL);
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StartTimer1();
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InitHeap(gHeap, HEAP_SIZE);
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ResetTasks();
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ResetSpriteData();
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FreeAllSpritePalettes();
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ResetPaletteFade();
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sub_8078B34();
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DmaFill16(3, 0, (void *)VRAM, VRAM_SIZE);
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DmaFill32(3, 0, (void *)OAM, OAM_SIZE);
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DmaFill16(3, 0, (void *)PLTT, PLTT_SIZE);
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ResetBgsAndClearDma3BusyFlags(FALSE);
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InitBgsFromTemplates(0, gUnknown_83BFB74, NELEMS(gUnknown_83BFB74));
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SetGpuRegBits(REG_OFFSET_DISPCNT, DISPCNT_OBJ_1D_MAP | DISPCNT_OBJ_ON);
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gUnknown_2037F30 = 0xFF;
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break;
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case 1:
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LoadPalette(gUnknown_8EAB6C4, 0, 0x1A0);
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DecompressAndCopyTileDataToVram(0, gUnknown_8EAB8C4, 0, 0, 0);
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DecompressAndCopyTileDataToVram(0, gUnknown_8EAD390, 0, 0, 1);
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LoadPalette(gUnknown_8EAD5E8, 0xD0, 0x20);
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DecompressAndCopyTileDataToVram(1, gUnknown_8EAD608, 0, 0, 0);
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DecompressAndCopyTileDataToVram(1, gUnknown_8EADEE4, 0, 0, 1);
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LoadPalette(gUnknown_8EAE094, 0xF0, 0x20);
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DecompressAndCopyTileDataToVram(2, gUnknown_8EAE0B4, 0, 0, 0);
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DecompressAndCopyTileDataToVram(2, gUnknown_8EAE374, 0, 0, 1);
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LoadPalette(gUnknown_8EAE094, 0xE0, 0x20);
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DecompressAndCopyTileDataToVram(3, gUnknown_83BF58C, 0, 0, 0);
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DecompressAndCopyTileDataToVram(3, gUnknown_83BF5A8, 0, 0, 1);
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sub_8079708();
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break;
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case 2:
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if (!FreeTempTileDataBuffersIfPossible())
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{
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BlendPalettes(0x0000FFFF, 0x10, RGB_BLACK);
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CreateTask(sub_8078C24, 4);
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gUnknown_2037F30 = CreateTask(sub_8078BEC, 2);
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SetVBlankCallback(sub_8078BB4);
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SetMainCallback2(sub_8078B9C);
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m4aSongNumStart(BGM_FRLG_TITLE);
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}
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return;
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}
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gMain.state++;
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}
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void sub_8078B34(void)
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{
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SetGpuReg(REG_OFFSET_DISPCNT, 0);
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SetGpuReg(REG_OFFSET_BLDCNT, 0);
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SetGpuReg(REG_OFFSET_BLDALPHA, 0);
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SetGpuReg(REG_OFFSET_BLDY, 0);
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SetGpuReg(REG_OFFSET_BG0HOFS, 0);
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SetGpuReg(REG_OFFSET_BG0VOFS, 0);
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SetGpuReg(REG_OFFSET_BG1HOFS, 0);
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SetGpuReg(REG_OFFSET_BG1VOFS, 0);
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SetGpuReg(REG_OFFSET_BG2HOFS, 0);
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SetGpuReg(REG_OFFSET_BG2VOFS, 0);
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SetGpuReg(REG_OFFSET_BG3HOFS, 0);
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SetGpuReg(REG_OFFSET_BG3VOFS, 0);
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}
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void sub_8078B9C(void)
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{
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RunTasks();
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AnimateSprites();
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BuildOamBuffer();
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UpdatePaletteFade();
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}
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void sub_8078BB4(void)
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{
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LoadOam();
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ProcessSpriteCopyRequests();
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TransferPlttBuffer();
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ScanlineEffect_InitHBlankDmaTransfer();
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if (gUnknown_2037F30 != 0xFF)
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gTasks[gUnknown_2037F30].data[0]++;
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}
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void sub_8078BEC(u8 taskId)
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{
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s16 * data = gTasks[taskId].data;
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if (data[0] >= 2700)
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{
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gUnknown_2037F30 = 0xFF;
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DestroyTask(taskId);
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}
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}
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void sub_8078C24(u8 taskId)
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{
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s16 * data = gTasks[taskId].data;
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if (JOY_NEW(A_BUTTON | B_BUTTON | START_BUTTON)
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&& data[0] != 3 && data[0] != 4 && data[0] != 5)
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{
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sub_8079620();
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sub_8079648();
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sub_8079A10(data[5]);
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sub_8078C90(data, 3);
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}
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else
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{
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gUnknown_83BFB84[data[0]](data);
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}
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}
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void sub_8078C90(s16 * data, u8 a1)
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{
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data[1] = 0;
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data[0] = a1;
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}
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void sub_8078C9C(s16 * data)
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{
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struct ScanlineEffectParams params;
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HideBg(0);
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ShowBg(1);
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ShowBg(2);
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ShowBg(3);
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params.dmaDest = (volatile void *)REG_ADDR_BLDY;
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params.dmaControl = SCANLINE_EFFECT_DMACNT_16BIT;
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params.initState = 1;
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params.unused9 = 0;
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CpuFill16(0, gScanlineEffectRegBuffers[0], 0x140);
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CpuFill16(0, gScanlineEffectRegBuffers[1], 0x140);
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ScanlineEffect_SetParams(params);
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sub_8078C90(data, 1);
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}
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