mirror of https://github.com/pret/pokeemerald.git
86 lines
3.7 KiB
C
86 lines
3.7 KiB
C
#ifndef GUARD_BG_H
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#define GUARD_BG_H
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struct BGCntrlBitfield // for the I/O registers
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{
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volatile u16 priority:2;
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volatile u16 charBaseBlock:2;
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volatile u16 field_0_2:4;
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volatile u16 field_1_0:5;
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volatile u16 areaOverflowMode:1;
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volatile u16 screenSize:2;
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};
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enum
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{
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BG_CTRL_ATTR_VISIBLE = 1,
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BG_CTRL_ATTR_CHARBASEINDEX = 2,
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BG_CTRL_ATTR_MAPBASEINDEX = 3,
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BG_CTRL_ATTR_SCREENSIZE = 4,
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BG_CTRL_ATTR_PALETTEMODE = 5,
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BG_CTRL_ATTR_PRIORITY = 6,
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BG_CTRL_ATTR_MOSAIC = 7,
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BG_CTRL_ATTR_WRAPAROUND = 8,
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};
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struct BgTemplate
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{
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u32 bg:2; // 0x1, 0x2 -> 0x3
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u32 charBaseIndex:2; // 0x4, 0x8 -> 0xC
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u32 mapBaseIndex:5; // 0x10, 0x20, 0x40, 0x80, 0x100 -> 0x1F0
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u32 screenSize:2; // 0x200, 0x400 -> 0x600
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u32 paletteMode:1; // 0x800
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u32 priority:2; // 0x1000, 0x2000 > 0x3000
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u32 baseTile:10;
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};
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void ResetBgs(void);
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u8 GetBgMode(void);
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void ResetBgControlStructs(void);
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void Unused_ResetBgControlStruct(u8 bg);
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void SetBgControlAttributes(u8 bg, u8 charBaseIndex, u8 mapBaseIndex, u8 screenSize, u8 paletteMode, u8 priority, u8 mosaic, u8 wraparound);
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u16 GetBgControlAttribute(u8 bg, u8 attributeId);
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u8 LoadBgVram(u8 bg, const void *src, u16 size, u16 destOffset, u8 mode);
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void SetTextModeAndHideBgs(void);
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bool8 IsInvalidBg(u8 bg);
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int DummiedOutFireRedLeafGreenTileAllocFunc(int a1, int a2, int a3, int a4);
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void ResetBgsAndClearDma3BusyFlags(u32 leftoverFireRedLeafGreenVariable);
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void InitBgsFromTemplates(u8 bgMode, const struct BgTemplate *templates, u8 numTemplates);
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void InitBgFromTemplate(const struct BgTemplate *template);
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void SetBgMode(u8 bgMode);
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u16 LoadBgTiles(u8 bg, const void* src, u16 size, u16 destOffset);
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u16 LoadBgTilemap(u8 bg, const void *src, u16 size, u16 destOffset);
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u16 Unused_LoadBgPalette(u8 bg, const void *src, u16 size, u16 destOffset);
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bool8 IsDma3ManagerBusyWithBgCopy(void);
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void ShowBg(u8 bg);
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void HideBg(u8 bg);
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void SetBgAttribute(u8 bg, u8 attributeId, u8 value);
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u16 GetBgAttribute(u8 bg, u8 attributeId);
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u32 ChangeBgX(u8 bg, u32 value, u8 op);
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u32 GetBgX(u8 bg);
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u32 ChangeBgY(u8 bg, u32 value, u8 op);
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u32 ChangeBgY_ScreenOff(u8 bg, u32 value, u8 op);
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u32 GetBgY(u8 bg);
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void SetBgAffine(u8 bg, u32 srcCenterX, u32 srcCenterY, s16 dispCenterX, s16 dispCenterY, s16 scaleX, s16 scaleY, u16 rotationAngle);
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u8 Unused_AdjustBgMosaic(u8 a1, u8 a2);
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void SetBgTilemapBuffer(u8 bg, void *tilemap);
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void UnsetBgTilemapBuffer(u8 bg);
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void* GetBgTilemapBuffer(u8 bg);
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void CopyToBgTilemapBuffer(u8 bg, const void *src, u16 mode, u16 destOffset);
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void CopyBgTilemapBufferToVram(u8 bg);
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void CopyToBgTilemapBufferRect(u8 bg, const void* src, u8 destX, u8 destY, u8 width, u8 height);
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void CopyToBgTilemapBufferRect_ChangePalette(u8 bg, const void *src, u8 destX, u8 destY, u8 rectWidth, u8 rectHeight, u8 palette);
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void CopyRectToBgTilemapBufferRect(u8 bg, const void *src, u8 srcX, u8 srcY, u8 srcWidth, u8 srcHeight, u8 destX, u8 destY, u8 rectWidth, u8 rectHeight, u8 palette1, u16 tileOffset, u16 palette2);
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void FillBgTilemapBufferRect_Palette0(u8 bg, u16 tileNum, u8 x, u8 y, u8 width, u8 height);
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void FillBgTilemapBufferRect(u8 bg, u16 tileNum, u8 x, u8 y, u8 width, u8 height, u8 palette);
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void WriteSequenceToBgTilemapBuffer(u8 bg, u16 firstTileNum, u8 x, u8 y, u8 width, u8 height, u8 paletteSlot, s16 tileNumDelta);
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u16 GetBgMetricTextMode(u8 bg, u8 whichMetric);
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u32 GetBgMetricAffineMode(u8 bg, u8 whichMetric);
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u32 GetTileMapIndexFromCoords(s32 x, s32 y, s32 screenSize, u32 screenWidth, u32 screenHeight);
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void CopyTileMapEntry(u16 *src, u16 *dest, s32 palette1, u32 tileOffset, u32 palette2);
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u32 GetBgType(u8 bg);
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bool32 IsInvalidBg32(u8 bg);
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bool32 IsTileMapOutsideWram(u8 bg);
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#endif // GUARD_BG_H
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