diff options
Diffstat (limited to 'src/bg.c')
| -rw-r--r-- | src/bg.c | 314 |
1 files changed, 144 insertions, 170 deletions
@@ -1,21 +1,12 @@ #include "global.h" -#include "dma3.h" #include "bg.h" +#include "dma3.h" +#include "gpu_regs.h" -#define DISPCNT_ALL_BG_AND_MODE_BITS 0x0F07 - -enum { - BG_CTRL_ATTR_VISIBLE = 1, - BG_CTRL_ATTR_CHARBASEINDEX = 2, - BG_CTRL_ATTR_MAPBASEINDEX = 3, - BG_CTRL_ATTR_SCREENSIZE = 4, - BG_CTRL_ATTR_PALETTEMODE = 5, - BG_CTRL_ATTR_PRIORITY = 6, - BG_CTRL_ATTR_MOSAIC = 7, - BG_CTRL_ATTR_WRAPAROUND = 8, -}; +#define DISPCNT_ALL_BG_AND_MODE_BITS (DISPCNT_BG_ALL_ON | 0x7) -struct BgControl { +struct BgControl +{ struct BgConfig { u16 visible:1; u16 unknown_1:1; @@ -35,7 +26,8 @@ struct BgControl { u16 bgVisibilityAndMode; }; -struct BgConfig2 { +struct BgConfig2 +{ u32 baseTile:10; u32 basePalette:4; u32 unk_3:18; @@ -45,54 +37,36 @@ struct BgConfig2 { u32 bg_y; }; -static struct BgControl gGpuBgConfigs; -static struct BgConfig2 gGpuBgConfigs2[4]; -static u32 gDmaBusyBitfield[4]; +static IWRAM_DATA struct BgControl sGpuBgConfigs; +static IWRAM_DATA struct BgConfig2 sGpuBgConfigs2[4]; +static IWRAM_DATA u32 sDmaBusyBitfield[4]; u32 gUnneededFireRedVariable; -static const struct BgConfig gZeroedBgControlStruct = { 0 }; - -extern void SetGpuReg(u8 regOffset, u16 value); -extern void SetGpuReg_ForcedBlank(u8 regOffset, u16 value); -extern u16 GetGpuReg(u8 regOffset); -extern int CheckForSpaceForDma3Request(s16 index); - -bool32 IsInvalidBg32(u8); -void ResetBgControlStructs(); -u16 GetBgMetricTextMode(u8, u8); -u32 GetBgMetricAffineMode(u8, u8); -u32 GetBgType(u8); -void SetTextModeAndHideBgs(); -bool8 IsInvalidBg(u8); -bool32 IsTileMapOutsideWram(u8); -void CopyRectToBgTilemapBufferRect(u8, void*, u8, u8, u8, u8, u8, u8, u8, u8, u8, u16, u16); -void CopyTileMapEntry(u16*, u16*, s32, u32, u32); -u32 GetTileMapIndexFromCoords(s32, s32, s32, u32, u32); -void WriteSequenceToBgTilemapBuffer(u8, u16, u8, u8, u8, u8, u8, s16); +static const struct BgConfig sZeroedBgControlStruct = { 0 }; void ResetBgs(void) { ResetBgControlStructs(); - gGpuBgConfigs.bgVisibilityAndMode = 0; + sGpuBgConfigs.bgVisibilityAndMode = 0; SetTextModeAndHideBgs(); } -void SetBgModeInternal(u8 bgMode) +static void SetBgModeInternal(u8 bgMode) { - gGpuBgConfigs.bgVisibilityAndMode &= 0xFFF8; - gGpuBgConfigs.bgVisibilityAndMode |= bgMode; + sGpuBgConfigs.bgVisibilityAndMode &= 0xFFF8; + sGpuBgConfigs.bgVisibilityAndMode |= bgMode; } u8 GetBgMode(void) { - return gGpuBgConfigs.bgVisibilityAndMode & 0x7; + return sGpuBgConfigs.bgVisibilityAndMode & 0x7; } void ResetBgControlStructs(void) { - struct BgConfig* bgConfigs = &gGpuBgConfigs.configs[0]; - struct BgConfig zeroedConfig = gZeroedBgControlStruct; + struct BgConfig* bgConfigs = &sGpuBgConfigs.configs[0]; + struct BgConfig zeroedConfig = sZeroedBgControlStruct; int i; for (i = 0; i < 4; i++) @@ -105,7 +79,7 @@ void Unused_ResetBgControlStruct(u8 bg) { if (IsInvalidBg(bg) == FALSE) { - gGpuBgConfigs.configs[bg] = gZeroedBgControlStruct; + sGpuBgConfigs.configs[bg] = sZeroedBgControlStruct; } } @@ -115,88 +89,88 @@ void SetBgControlAttributes(u8 bg, u8 charBaseIndex, u8 mapBaseIndex, u8 screenS { if (charBaseIndex != 0xFF) { - gGpuBgConfigs.configs[bg].charBaseIndex = charBaseIndex & 0x3; + sGpuBgConfigs.configs[bg].charBaseIndex = charBaseIndex & 0x3; } if (mapBaseIndex != 0xFF) { - gGpuBgConfigs.configs[bg].mapBaseIndex = mapBaseIndex & 0x1F; + sGpuBgConfigs.configs[bg].mapBaseIndex = mapBaseIndex & 0x1F; } if (screenSize != 0xFF) { - gGpuBgConfigs.configs[bg].screenSize = screenSize & 0x3; + sGpuBgConfigs.configs[bg].screenSize = screenSize & 0x3; } if (paletteMode != 0xFF) { - gGpuBgConfigs.configs[bg].paletteMode = paletteMode; + sGpuBgConfigs.configs[bg].paletteMode = paletteMode; } if (priority != 0xFF) { - gGpuBgConfigs.configs[bg].priority = priority & 0x3; + sGpuBgConfigs.configs[bg].priority = priority & 0x3; } if (mosaic != 0xFF) { - gGpuBgConfigs.configs[bg].mosaic = mosaic & 0x1; + sGpuBgConfigs.configs[bg].mosaic = mosaic & 0x1; } if (wraparound != 0xFF) { - gGpuBgConfigs.configs[bg].wraparound = wraparound; + sGpuBgConfigs.configs[bg].wraparound = wraparound; } - gGpuBgConfigs.configs[bg].unknown_2 = 0; - gGpuBgConfigs.configs[bg].unknown_3 = 0; + sGpuBgConfigs.configs[bg].unknown_2 = 0; + sGpuBgConfigs.configs[bg].unknown_3 = 0; - gGpuBgConfigs.configs[bg].visible = 1; + sGpuBgConfigs.configs[bg].visible = 1; } } u16 GetBgControlAttribute(u8 bg, u8 attributeId) { - if (IsInvalidBg(bg) == FALSE && gGpuBgConfigs.configs[bg].visible != FALSE) + if (IsInvalidBg(bg) == FALSE && sGpuBgConfigs.configs[bg].visible != FALSE) { switch (attributeId) { case BG_CTRL_ATTR_VISIBLE: - return gGpuBgConfigs.configs[bg].visible; + return sGpuBgConfigs.configs[bg].visible; case BG_CTRL_ATTR_CHARBASEINDEX: - return gGpuBgConfigs.configs[bg].charBaseIndex; + return sGpuBgConfigs.configs[bg].charBaseIndex; case BG_CTRL_ATTR_MAPBASEINDEX: - return gGpuBgConfigs.configs[bg].mapBaseIndex; + return sGpuBgConfigs.configs[bg].mapBaseIndex; case BG_CTRL_ATTR_SCREENSIZE: - return gGpuBgConfigs.configs[bg].screenSize; + return sGpuBgConfigs.configs[bg].screenSize; case BG_CTRL_ATTR_PALETTEMODE: - return gGpuBgConfigs.configs[bg].paletteMode; + return sGpuBgConfigs.configs[bg].paletteMode; case BG_CTRL_ATTR_PRIORITY: - return gGpuBgConfigs.configs[bg].priority; + return sGpuBgConfigs.configs[bg].priority; case BG_CTRL_ATTR_MOSAIC: - return gGpuBgConfigs.configs[bg].mosaic; + return sGpuBgConfigs.configs[bg].mosaic; case BG_CTRL_ATTR_WRAPAROUND: - return gGpuBgConfigs.configs[bg].wraparound; + return sGpuBgConfigs.configs[bg].wraparound; } } return 0xFF; } -u8 LoadBgVram(u8 bg, void *src, u16 size, u16 destOffset, u8 mode) +u8 LoadBgVram(u8 bg, const void *src, u16 size, u16 destOffset, u8 mode) { u16 offset; s8 cursor; - if (IsInvalidBg(bg) == FALSE && gGpuBgConfigs.configs[bg].visible != FALSE) + if (IsInvalidBg(bg) == FALSE && sGpuBgConfigs.configs[bg].visible != FALSE) { switch (mode) { case 0x1: - offset = gGpuBgConfigs.configs[bg].charBaseIndex * BG_CHAR_SIZE; + offset = sGpuBgConfigs.configs[bg].charBaseIndex * BG_CHAR_SIZE; break; case 0x2: - offset = gGpuBgConfigs.configs[bg].mapBaseIndex * BG_SCREEN_SIZE; + offset = sGpuBgConfigs.configs[bg].mapBaseIndex * BG_SCREEN_SIZE; break; default: cursor = -1; @@ -221,51 +195,51 @@ end: return cursor; } -void ShowBgInternal(u8 bg) +static void ShowBgInternal(u8 bg) { u16 value; - if (IsInvalidBg(bg) == FALSE && gGpuBgConfigs.configs[bg].visible != FALSE) + if (IsInvalidBg(bg) == FALSE && sGpuBgConfigs.configs[bg].visible != FALSE) { - value = gGpuBgConfigs.configs[bg].priority | - (gGpuBgConfigs.configs[bg].charBaseIndex << 2) | - (gGpuBgConfigs.configs[bg].mosaic << 6) | - (gGpuBgConfigs.configs[bg].paletteMode << 7) | - (gGpuBgConfigs.configs[bg].mapBaseIndex << 8) | - (gGpuBgConfigs.configs[bg].wraparound << 13) | - (gGpuBgConfigs.configs[bg].screenSize << 14); + value = sGpuBgConfigs.configs[bg].priority | + (sGpuBgConfigs.configs[bg].charBaseIndex << 2) | + (sGpuBgConfigs.configs[bg].mosaic << 6) | + (sGpuBgConfigs.configs[bg].paletteMode << 7) | + (sGpuBgConfigs.configs[bg].mapBaseIndex << 8) | + (sGpuBgConfigs.configs[bg].wraparound << 13) | + (sGpuBgConfigs.configs[bg].screenSize << 14); SetGpuReg((bg << 1) + 0x8, value); - gGpuBgConfigs.bgVisibilityAndMode |= 1 << (bg + 8); - gGpuBgConfigs.bgVisibilityAndMode &= DISPCNT_ALL_BG_AND_MODE_BITS; + sGpuBgConfigs.bgVisibilityAndMode |= 1 << (bg + 8); + sGpuBgConfigs.bgVisibilityAndMode &= DISPCNT_ALL_BG_AND_MODE_BITS; } } -void HideBgInternal(u8 bg) +static void HideBgInternal(u8 bg) { if (IsInvalidBg(bg) == FALSE) { - gGpuBgConfigs.bgVisibilityAndMode &= ~(1 << (bg + 8)); - gGpuBgConfigs.bgVisibilityAndMode &= DISPCNT_ALL_BG_AND_MODE_BITS; + sGpuBgConfigs.bgVisibilityAndMode &= ~(1 << (bg + 8)); + sGpuBgConfigs.bgVisibilityAndMode &= DISPCNT_ALL_BG_AND_MODE_BITS; } } -void SyncBgVisibilityAndMode() +static void SyncBgVisibilityAndMode(void) { - SetGpuReg(0, (GetGpuReg(0) & ~DISPCNT_ALL_BG_AND_MODE_BITS) | gGpuBgConfigs.bgVisibilityAndMode); + SetGpuReg(0, (GetGpuReg(0) & ~DISPCNT_ALL_BG_AND_MODE_BITS) | sGpuBgConfigs.bgVisibilityAndMode); } -void SetTextModeAndHideBgs() +void SetTextModeAndHideBgs(void) { SetGpuReg(0, GetGpuReg(0) & ~DISPCNT_ALL_BG_AND_MODE_BITS); } -void SetBgAffineInternal(u8 bg, u32 srcCenterX, u32 srcCenterY, s16 dispCenterX, s16 dispCenterY, s16 scaleX, s16 scaleY, u16 rotationAngle) +static void SetBgAffineInternal(u8 bg, u32 srcCenterX, u32 srcCenterY, s16 dispCenterX, s16 dispCenterY, s16 scaleX, s16 scaleY, u16 rotationAngle) { struct BgAffineSrcData src; struct BgAffineDstData dest; - switch (gGpuBgConfigs.bgVisibilityAndMode & 0x7) + switch (sGpuBgConfigs.bgVisibilityAndMode & 0x7) { case 1: if (bg != 2) @@ -320,7 +294,7 @@ void ResetBgsAndClearDma3BusyFlags(u32 leftoverFireRedLeafGreenVariable) for (i = 0; i < 4; i++) { - gDmaBusyBitfield[i] = 0; + sDmaBusyBitfield[i] = 0; } gUnneededFireRedVariable = leftoverFireRedLeafGreenVariable; @@ -347,13 +321,13 @@ void InitBgsFromTemplates(u8 bgMode, const struct BgTemplate *templates, u8 numT 0, 0); - gGpuBgConfigs2[bg].baseTile = templates[i].baseTile; - gGpuBgConfigs2[bg].basePalette = 0; - gGpuBgConfigs2[bg].unk_3 = 0; + sGpuBgConfigs2[bg].baseTile = templates[i].baseTile; + sGpuBgConfigs2[bg].basePalette = 0; + sGpuBgConfigs2[bg].unk_3 = 0; - gGpuBgConfigs2[bg].tilemap = NULL; - gGpuBgConfigs2[bg].bg_x = 0; - gGpuBgConfigs2[bg].bg_y = 0; + sGpuBgConfigs2[bg].tilemap = NULL; + sGpuBgConfigs2[bg].bg_x = 0; + sGpuBgConfigs2[bg].bg_y = 0; } } } @@ -373,13 +347,13 @@ void InitBgFromTemplate(const struct BgTemplate *template) 0, 0); - gGpuBgConfigs2[bg].baseTile = template->baseTile; - gGpuBgConfigs2[bg].basePalette = 0; - gGpuBgConfigs2[bg].unk_3 = 0; + sGpuBgConfigs2[bg].baseTile = template->baseTile; + sGpuBgConfigs2[bg].basePalette = 0; + sGpuBgConfigs2[bg].unk_3 = 0; - gGpuBgConfigs2[bg].tilemap = NULL; - gGpuBgConfigs2[bg].bg_x = 0; - gGpuBgConfigs2[bg].bg_y = 0; + sGpuBgConfigs2[bg].tilemap = NULL; + sGpuBgConfigs2[bg].bg_x = 0; + sGpuBgConfigs2[bg].bg_y = 0; } } @@ -388,18 +362,18 @@ void SetBgMode(u8 bgMode) SetBgModeInternal(bgMode); } -u16 LoadBgTiles(u8 bg, void* src, u16 size, u16 destOffset) +u16 LoadBgTiles(u8 bg, const void* src, u16 size, u16 destOffset) { u16 tileOffset; u8 cursor; if (GetBgControlAttribute(bg, BG_CTRL_ATTR_PALETTEMODE) == 0) { - tileOffset = (gGpuBgConfigs2[bg].baseTile + destOffset) * 0x20; + tileOffset = (sGpuBgConfigs2[bg].baseTile + destOffset) * 0x20; } else { - tileOffset = (gGpuBgConfigs2[bg].baseTile + destOffset) * 0x40; + tileOffset = (sGpuBgConfigs2[bg].baseTile + destOffset) * 0x40; } cursor = LoadBgVram(bg, src, size, tileOffset, DISPCNT_MODE_1); @@ -409,7 +383,7 @@ u16 LoadBgTiles(u8 bg, void* src, u16 size, u16 destOffset) return -1; } - gDmaBusyBitfield[cursor / 0x20] |= (1 << (cursor % 0x20)); + sDmaBusyBitfield[cursor / 0x20] |= (1 << (cursor % 0x20)); if (gUnneededFireRedVariable == 1) { @@ -419,7 +393,7 @@ u16 LoadBgTiles(u8 bg, void* src, u16 size, u16 destOffset) return cursor; } -u16 LoadBgTilemap(u8 bg, void *src, u16 size, u16 destOffset) +u16 LoadBgTilemap(u8 bg, const void *src, u16 size, u16 destOffset) { u8 cursor; @@ -430,19 +404,19 @@ u16 LoadBgTilemap(u8 bg, void *src, u16 size, u16 destOffset) return -1; } - gDmaBusyBitfield[cursor / 0x20] |= (1 << (cursor % 0x20)); + sDmaBusyBitfield[cursor / 0x20] |= (1 << (cursor % 0x20)); return cursor; } -u16 Unused_LoadBgPalette(u8 bg, void *src, u16 size, u16 destOffset) +u16 Unused_LoadBgPalette(u8 bg, const void *src, u16 size, u16 destOffset) { u16 paletteOffset; s8 cursor; if (IsInvalidBg32(bg) == FALSE) { - paletteOffset = (gGpuBgConfigs2[bg].basePalette * 0x20) + (destOffset * 2); + paletteOffset = (sGpuBgConfigs2[bg].basePalette * 0x20) + (destOffset * 2); cursor = RequestDma3Copy(src, (void*)(paletteOffset + BG_PLTT), size, 0); if (cursor == -1) @@ -455,7 +429,7 @@ u16 Unused_LoadBgPalette(u8 bg, void *src, u16 size, u16 destOffset) return -1; } - gDmaBusyBitfield[cursor / 0x20] |= (1 << (cursor % 0x20)); + sDmaBusyBitfield[cursor / 0x20] |= (1 << (cursor % 0x20)); return (u8)cursor; } @@ -474,7 +448,7 @@ bool8 IsDma3ManagerBusyWithBgCopy(void) div = i / 0x20; mod = i % 0x20; - if ((gDmaBusyBitfield[div] & (1 << mod)) != FALSE) + if ((sDmaBusyBitfield[div] & (1 << mod)) != FALSE) { reqSpace = CheckForSpaceForDma3Request(i); if (reqSpace == -1) @@ -482,7 +456,7 @@ bool8 IsDma3ManagerBusyWithBgCopy(void) return TRUE; } - gDmaBusyBitfield[div] &= ~(1 << mod); + sDmaBusyBitfield[div] &= ~(1 << mod); } } @@ -508,7 +482,7 @@ _08001AE4:\n\ sub r0, r5, r0\n\ lsl r0, #24\n\ lsr r0, #24\n\ - ldr r1, =gDmaBusyBitfield\n\ + ldr r1, =sDmaBusyBitfield\n\ lsr r2, #22\n\ add r4, r2, r1\n\ mov r6, #0x1\n\ @@ -614,7 +588,7 @@ u16 GetBgAttribute(u8 bg, u8 attributeId) case 9: return GetBgType(bg); case 10: - return gGpuBgConfigs2[bg].baseTile; + return sGpuBgConfigs2[bg].baseTile; default: return -1; } @@ -635,13 +609,13 @@ u32 ChangeBgX(u8 bg, u32 value, u8 op) { case 0: default: - gGpuBgConfigs2[bg].bg_x = value; + sGpuBgConfigs2[bg].bg_x = value; break; case 1: - gGpuBgConfigs2[bg].bg_x += value; + sGpuBgConfigs2[bg].bg_x += value; break; case 2: - gGpuBgConfigs2[bg].bg_x -= value; + sGpuBgConfigs2[bg].bg_x -= value; break; } @@ -650,23 +624,23 @@ u32 ChangeBgX(u8 bg, u32 value, u8 op) switch (bg) { case 0: - temp1 = gGpuBgConfigs2[0].bg_x >> 0x8; + temp1 = sGpuBgConfigs2[0].bg_x >> 0x8; SetGpuReg(REG_OFFSET_BG0HOFS, temp1); break; case 1: - temp1 = gGpuBgConfigs2[1].bg_x >> 0x8; + temp1 = sGpuBgConfigs2[1].bg_x >> 0x8; SetGpuReg(REG_OFFSET_BG1HOFS, temp1); break; case 2: if (mode == 0) { - temp1 = gGpuBgConfigs2[2].bg_x >> 0x8; + temp1 = sGpuBgConfigs2[2].bg_x >> 0x8; SetGpuReg(REG_OFFSET_BG2HOFS, temp1); } else { - temp1 = gGpuBgConfigs2[2].bg_x >> 0x10; - temp2 = gGpuBgConfigs2[2].bg_x & 0xFFFF; + temp1 = sGpuBgConfigs2[2].bg_x >> 0x10; + temp2 = sGpuBgConfigs2[2].bg_x & 0xFFFF; SetGpuReg(REG_OFFSET_BG2X_H, temp1); SetGpuReg(REG_OFFSET_BG2X_L, temp2); } @@ -674,20 +648,20 @@ u32 ChangeBgX(u8 bg, u32 value, u8 op) case 3: if (mode == 0) { - temp1 = gGpuBgConfigs2[3].bg_x >> 0x8; + temp1 = sGpuBgConfigs2[3].bg_x >> 0x8; SetGpuReg(REG_OFFSET_BG3HOFS, temp1); } else if (mode == 2) { - temp1 = gGpuBgConfigs2[3].bg_x >> 0x10; - temp2 = gGpuBgConfigs2[3].bg_x & 0xFFFF; + temp1 = sGpuBgConfigs2[3].bg_x >> 0x10; + temp2 = sGpuBgConfigs2[3].bg_x & 0xFFFF; SetGpuReg(REG_OFFSET_BG3X_H, temp1); SetGpuReg(REG_OFFSET_BG3X_L, temp2); } break; } - return gGpuBgConfigs2[bg].bg_x; + return sGpuBgConfigs2[bg].bg_x; } u32 GetBgX(u8 bg) @@ -696,7 +670,7 @@ u32 GetBgX(u8 bg) return -1; if (GetBgControlAttribute(bg, BG_CTRL_ATTR_VISIBLE) == 0) return -1; - return gGpuBgConfigs2[bg].bg_x; + return sGpuBgConfigs2[bg].bg_x; } u32 ChangeBgY(u8 bg, u32 value, u8 op) @@ -714,13 +688,13 @@ u32 ChangeBgY(u8 bg, u32 value, u8 op) { case 0: default: - gGpuBgConfigs2[bg].bg_y = value; + sGpuBgConfigs2[bg].bg_y = value; break; case 1: - gGpuBgConfigs2[bg].bg_y += value; + sGpuBgConfigs2[bg].bg_y += value; break; case 2: - gGpuBgConfigs2[bg].bg_y -= value; + sGpuBgConfigs2[bg].bg_y -= value; break; } @@ -729,23 +703,23 @@ u32 ChangeBgY(u8 bg, u32 value, u8 op) switch (bg) { case 0: - temp1 = gGpuBgConfigs2[0].bg_y >> 0x8; + temp1 = sGpuBgConfigs2[0].bg_y >> 0x8; SetGpuReg(REG_OFFSET_BG0VOFS, temp1); break; case 1: - temp1 = gGpuBgConfigs2[1].bg_y >> 0x8; + temp1 = sGpuBgConfigs2[1].bg_y >> 0x8; SetGpuReg(REG_OFFSET_BG1VOFS, temp1); break; case 2: if (mode == 0) { - temp1 = gGpuBgConfigs2[2].bg_y >> 0x8; + temp1 = sGpuBgConfigs2[2].bg_y >> 0x8; SetGpuReg(REG_OFFSET_BG2VOFS, temp1); } else { - temp1 = gGpuBgConfigs2[2].bg_y >> 0x10; - temp2 = gGpuBgConfigs2[2].bg_y & 0xFFFF; + temp1 = sGpuBgConfigs2[2].bg_y >> 0x10; + temp2 = sGpuBgConfigs2[2].bg_y & 0xFFFF; SetGpuReg(REG_OFFSET_BG2Y_H, temp1); SetGpuReg(REG_OFFSET_BG2Y_L, temp2); } @@ -753,20 +727,20 @@ u32 ChangeBgY(u8 bg, u32 value, u8 op) case 3: if (mode == 0) { - temp1 = gGpuBgConfigs2[3].bg_y >> 0x8; + temp1 = sGpuBgConfigs2[3].bg_y >> 0x8; SetGpuReg(REG_OFFSET_BG3VOFS, temp1); } else if (mode == 2) { - temp1 = gGpuBgConfigs2[3].bg_y >> 0x10; - temp2 = gGpuBgConfigs2[3].bg_y & 0xFFFF; + temp1 = sGpuBgConfigs2[3].bg_y >> 0x10; + temp2 = sGpuBgConfigs2[3].bg_y & 0xFFFF; SetGpuReg(REG_OFFSET_BG3Y_H, temp1); SetGpuReg(REG_OFFSET_BG3Y_L, temp2); } break; } - return gGpuBgConfigs2[bg].bg_y; + return sGpuBgConfigs2[bg].bg_y; } u32 ChangeBgY_ScreenOff(u8 bg, u32 value, u8 op) @@ -784,13 +758,13 @@ u32 ChangeBgY_ScreenOff(u8 bg, u32 value, u8 op) { case 0: default: - gGpuBgConfigs2[bg].bg_y = value; + sGpuBgConfigs2[bg].bg_y = value; break; case 1: - gGpuBgConfigs2[bg].bg_y += value; + sGpuBgConfigs2[bg].bg_y += value; break; case 2: - gGpuBgConfigs2[bg].bg_y -= value; + sGpuBgConfigs2[bg].bg_y -= value; break; } @@ -799,24 +773,24 @@ u32 ChangeBgY_ScreenOff(u8 bg, u32 value, u8 op) switch (bg) { case 0: - temp1 = gGpuBgConfigs2[0].bg_y >> 0x8; + temp1 = sGpuBgConfigs2[0].bg_y >> 0x8; SetGpuReg_ForcedBlank(REG_OFFSET_BG0VOFS, temp1); break; case 1: - temp1 = gGpuBgConfigs2[1].bg_y >> 0x8; + temp1 = sGpuBgConfigs2[1].bg_y >> 0x8; SetGpuReg_ForcedBlank(REG_OFFSET_BG1VOFS, temp1); break; case 2: if (mode == 0) { - temp1 = gGpuBgConfigs2[2].bg_y >> 0x8; + temp1 = sGpuBgConfigs2[2].bg_y >> 0x8; SetGpuReg_ForcedBlank(REG_OFFSET_BG2VOFS, temp1); } else { - temp1 = gGpuBgConfigs2[2].bg_y >> 0x10; - temp2 = gGpuBgConfigs2[2].bg_y & 0xFFFF; + temp1 = sGpuBgConfigs2[2].bg_y >> 0x10; + temp2 = sGpuBgConfigs2[2].bg_y & 0xFFFF; SetGpuReg_ForcedBlank(REG_OFFSET_BG2Y_H, temp1); SetGpuReg_ForcedBlank(REG_OFFSET_BG2Y_L, temp2); } @@ -824,20 +798,20 @@ u32 ChangeBgY_ScreenOff(u8 bg, u32 value, u8 op) case 3: if (mode == 0) { - temp1 = gGpuBgConfigs2[3].bg_y >> 0x8; + temp1 = sGpuBgConfigs2[3].bg_y >> 0x8; SetGpuReg_ForcedBlank(REG_OFFSET_BG3VOFS, temp1); } else if (mode == 2) { - temp1 = gGpuBgConfigs2[3].bg_y >> 0x10; - temp2 = gGpuBgConfigs2[3].bg_y & 0xFFFF; + temp1 = sGpuBgConfigs2[3].bg_y >> 0x10; + temp2 = sGpuBgConfigs2[3].bg_y & 0xFFFF; SetGpuReg_ForcedBlank(REG_OFFSET_BG3Y_H, temp1); SetGpuReg_ForcedBlank(REG_OFFSET_BG3Y_L, temp2); } break; } - return gGpuBgConfigs2[bg].bg_y; + return sGpuBgConfigs2[bg].bg_y; } u32 GetBgY(u8 bg) @@ -846,7 +820,7 @@ u32 GetBgY(u8 bg) return -1; if (GetBgControlAttribute(bg, BG_CTRL_ATTR_VISIBLE) == 0) return -1; - return gGpuBgConfigs2[bg].bg_y; + return sGpuBgConfigs2[bg].bg_y; } void SetBgAffine(u8 bg, u32 srcCenterX, u32 srcCenterY, s16 dispCenterX, s16 dispCenterY, s16 scaleX, s16 scaleY, u16 rotationAngle) @@ -933,7 +907,7 @@ void SetBgTilemapBuffer(u8 bg, void *tilemap) { if (IsInvalidBg32(bg) == FALSE && GetBgControlAttribute(bg, BG_CTRL_ATTR_VISIBLE) != 0x0) { - gGpuBgConfigs2[bg].tilemap = tilemap; + sGpuBgConfigs2[bg].tilemap = tilemap; } } @@ -941,7 +915,7 @@ void UnsetBgTilemapBuffer(u8 bg) { if (IsInvalidBg32(bg) == FALSE && GetBgControlAttribute(bg, BG_CTRL_ATTR_VISIBLE) != 0x0) { - gGpuBgConfigs2[bg].tilemap = NULL; + sGpuBgConfigs2[bg].tilemap = NULL; } } @@ -951,20 +925,20 @@ void* GetBgTilemapBuffer(u8 bg) return NULL; if (GetBgControlAttribute(bg, BG_CTRL_ATTR_VISIBLE) == 0) return NULL; - return gGpuBgConfigs2[bg].tilemap; + return sGpuBgConfigs2[bg].tilemap; } -void CopyToBgTilemapBuffer(u8 bg, void *src, u16 mode, u16 destOffset) +void CopyToBgTilemapBuffer(u8 bg, const void *src, u16 mode, u16 destOffset) { if (IsInvalidBg32(bg) == FALSE && IsTileMapOutsideWram(bg) == FALSE) { if (mode != 0) { - CpuCopy16(src, (void *)(gGpuBgConfigs2[bg].tilemap + (destOffset * 2)), mode); + CpuCopy16(src, (void *)(sGpuBgConfigs2[bg].tilemap + (destOffset * 2)), mode); } else { - LZ77UnCompWram(src, (void *)(gGpuBgConfigs2[bg].tilemap + (destOffset * 2))); + LZ77UnCompWram(src, (void *)(sGpuBgConfigs2[bg].tilemap + (destOffset * 2))); } } } @@ -987,7 +961,7 @@ void CopyBgTilemapBufferToVram(u8 bg) sizeToLoad = 0; break; } - LoadBgVram(bg, gGpuBgConfigs2[bg].tilemap, sizeToLoad, 0, 2); + LoadBgVram(bg, sGpuBgConfigs2[bg].tilemap, sizeToLoad, 0, 2); } } @@ -1008,7 +982,7 @@ void CopyToBgTilemapBufferRect(u8 bg, void* src, u8 destX, u8 destY, u8 width, u { for (destX16 = destX; destX16 < (destX + width); destX16++) { - ((u16*)gGpuBgConfigs2[bg].tilemap)[((destY16 * 0x20) + destX16)] = *((u16*)srcCopy)++; + ((u16*)sGpuBgConfigs2[bg].tilemap)[((destY16 * 0x20) + destX16)] = *((u16*)srcCopy)++; } } break; @@ -1019,7 +993,7 @@ void CopyToBgTilemapBufferRect(u8 bg, void* src, u8 destX, u8 destY, u8 width, u { for (destX16 = destX; destX16 < (destX + width); destX16++) { - ((u8*)gGpuBgConfigs2[bg].tilemap)[((destY16 * mode) + destX16)] = *((u8*)srcCopy)++; + ((u8*)sGpuBgConfigs2[bg].tilemap)[((destY16 * mode) + destX16)] = *((u8*)srcCopy)++; } } break; @@ -1056,7 +1030,7 @@ void CopyRectToBgTilemapBufferRect(u8 bg, void* src, u8 srcX, u8 srcY, u8 srcWid { for (destX16 = destX; destX16 < (destX + rectWidth); destX16++) { - CopyTileMapEntry(&((u16*)srcCopy)[(srcY * rectWidth) + srcX], &((u16*)gGpuBgConfigs2[bg].tilemap)[GetTileMapIndexFromCoords(destX16, destY16, attribute, mode, mode2)], palette1, tileOffset, palette2); + CopyTileMapEntry(&((u16*)srcCopy)[(srcY * rectWidth) + srcX], &((u16*)sGpuBgConfigs2[bg].tilemap)[GetTileMapIndexFromCoords(destX16, destY16, attribute, mode, mode2)], palette1, tileOffset, palette2); } } break; @@ -1067,7 +1041,7 @@ void CopyRectToBgTilemapBufferRect(u8 bg, void* src, u8 srcX, u8 srcY, u8 srcWid { for (destX16 = destX; destX16 < (destX + rectWidth); destX16++) { - CopyTileMapEntry(&((u16*)srcCopy)[(srcY * rectWidth) + srcX], &((u16*)gGpuBgConfigs2[bg].tilemap)[GetTileMapIndexFromCoords(destX16, destY16, attribute, mode, mode2)], palette1, tileOffset, palette2); + CopyTileMapEntry(&((u16*)srcCopy)[(srcY * rectWidth) + srcX], &((u16*)sGpuBgConfigs2[bg].tilemap)[GetTileMapIndexFromCoords(destX16, destY16, attribute, mode, mode2)], palette1, tileOffset, palette2); } } break; @@ -1195,7 +1169,7 @@ _080025F8:\n\ bge _0800265A\n\ ldr r2, [sp, #0x4]\n\ lsl r0, r2, #4\n\ - ldr r1, =gGpuBgConfigs2+4\n\ + ldr r1, =sGpuBgConfigs2+4\n\ add r0, r1\n\ mov r10, r0\n\ ldr r7, [sp, #0x20]\n\ @@ -1267,7 +1241,7 @@ _08002674:\n\ sub r2, r7, r2\n\ str r2, [sp, #0x34]\n\ str r0, [sp, #0x38]\n\ - ldr r7, =gGpuBgConfigs2+4\n\ + ldr r7, =sGpuBgConfigs2+4\n\ mov r10, r7\n\ ldr r0, [sp, #0x4]\n\ lsl r0, #4\n\ @@ -1337,7 +1311,7 @@ void FillBgTilemapBufferRect_Palette0(u8 bg, u16 tileNum, u8 x, u8 y, u8 width, { for (x16 = x; x16 < (x + width); x16++) { - ((u16*)gGpuBgConfigs2[bg].tilemap)[((y16 * 0x20) + x16)] = tileNum; + ((u16*)sGpuBgConfigs2[bg].tilemap)[((y16 * 0x20) + x16)] = tileNum; } } break; @@ -1347,7 +1321,7 @@ void FillBgTilemapBufferRect_Palette0(u8 bg, u16 tileNum, u8 x, u8 y, u8 width, { for (x16 = x; x16 < (x + width); x16++) { - ((u8*)gGpuBgConfigs2[bg].tilemap)[((y16 * mode) + x16)] = tileNum; + ((u8*)sGpuBgConfigs2[bg].tilemap)[((y16 * mode) + x16)] = tileNum; } } break; @@ -1382,7 +1356,7 @@ void WriteSequenceToBgTilemapBuffer(u8 bg, u16 firstTileNum, u8 x, u8 y, u8 widt { for (x16 = x; x16 < (x + width); x16++) { - CopyTileMapEntry(&firstTileNum, &((u16*)gGpuBgConfigs2[bg].tilemap)[(u16)GetTileMapIndexFromCoords(x16, y16, attribute, mode, mode2)], paletteSlot, 0, 0); + CopyTileMapEntry(&firstTileNum, &((u16*)sGpuBgConfigs2[bg].tilemap)[(u16)GetTileMapIndexFromCoords(x16, y16, attribute, mode, mode2)], paletteSlot, 0, 0); firstTileNum = (firstTileNum & 0xFC00) + ((firstTileNum + tileNumDelta) & 0x3FF); } } @@ -1393,7 +1367,7 @@ void WriteSequenceToBgTilemapBuffer(u8 bg, u16 firstTileNum, u8 x, u8 y, u8 widt { for (x16 = x; x16 < (x + width); x16++) { - ((u8*)gGpuBgConfigs2[bg].tilemap)[(y16 * mode3) + x16] = firstTileNum; + ((u8*)sGpuBgConfigs2[bg].tilemap)[(y16 * mode3) + x16] = firstTileNum; firstTileNum = (firstTileNum & 0xFC00) + ((firstTileNum + tileNumDelta) & 0x3FF); } } @@ -1625,9 +1599,9 @@ bool32 IsInvalidBg32(u8 bg) bool32 IsTileMapOutsideWram(u8 bg) { - if (gGpuBgConfigs2[bg].tilemap > (void*)IWRAM_END) + if (sGpuBgConfigs2[bg].tilemap > (void*)IWRAM_END) return TRUE; - if (gGpuBgConfigs2[bg].tilemap == 0x0) + if (sGpuBgConfigs2[bg].tilemap == 0x0) return TRUE; return FALSE; } |