mirror of
https://github.com/Ninjdai1/pokeemerald.git
synced 2024-11-16 19:47:35 +01:00
1608 lines
39 KiB
C
1608 lines
39 KiB
C
#include "global.h"
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#include "bg.h"
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#include "dma3.h"
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#include "gpu_regs.h"
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#define DISPCNT_ALL_BG_AND_MODE_BITS (DISPCNT_BG_ALL_ON | 0x7)
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struct BgControl
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{
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struct BgConfig {
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u16 visible:1;
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u16 unknown_1:1;
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u16 screenSize:2;
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u16 priority:2;
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u16 mosaic:1;
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u16 wraparound:1;
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u16 charBaseIndex:2;
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u16 mapBaseIndex:5;
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u16 paletteMode:1;
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u8 unknown_2;
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u8 unknown_3;
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} configs[4];
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u16 bgVisibilityAndMode;
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};
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struct BgConfig2
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{
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u32 baseTile:10;
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u32 basePalette:4;
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u32 unk_3:18;
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void* tilemap;
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u32 bg_x;
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u32 bg_y;
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};
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static IWRAM_DATA struct BgControl sGpuBgConfigs;
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static IWRAM_DATA struct BgConfig2 sGpuBgConfigs2[4];
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static IWRAM_DATA u32 sDmaBusyBitfield[4];
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u32 gUnneededFireRedVariable;
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static const struct BgConfig sZeroedBgControlStruct = { 0 };
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void ResetBgs(void)
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{
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ResetBgControlStructs();
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sGpuBgConfigs.bgVisibilityAndMode = 0;
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SetTextModeAndHideBgs();
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}
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static void SetBgModeInternal(u8 bgMode)
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{
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sGpuBgConfigs.bgVisibilityAndMode &= 0xFFF8;
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sGpuBgConfigs.bgVisibilityAndMode |= bgMode;
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}
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u8 GetBgMode(void)
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{
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return sGpuBgConfigs.bgVisibilityAndMode & 0x7;
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}
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void ResetBgControlStructs(void)
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{
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struct BgConfig* bgConfigs = &sGpuBgConfigs.configs[0];
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struct BgConfig zeroedConfig = sZeroedBgControlStruct;
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int i;
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for (i = 0; i < 4; i++)
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{
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bgConfigs[i] = zeroedConfig;
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}
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}
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void Unused_ResetBgControlStruct(u8 bg)
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{
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if (IsInvalidBg(bg) == FALSE)
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{
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sGpuBgConfigs.configs[bg] = sZeroedBgControlStruct;
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}
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}
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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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{
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if (IsInvalidBg(bg) == FALSE)
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{
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if (charBaseIndex != 0xFF)
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{
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sGpuBgConfigs.configs[bg].charBaseIndex = charBaseIndex & 0x3;
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}
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if (mapBaseIndex != 0xFF)
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{
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sGpuBgConfigs.configs[bg].mapBaseIndex = mapBaseIndex & 0x1F;
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}
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if (screenSize != 0xFF)
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{
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sGpuBgConfigs.configs[bg].screenSize = screenSize & 0x3;
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}
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if (paletteMode != 0xFF)
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{
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sGpuBgConfigs.configs[bg].paletteMode = paletteMode;
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}
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if (priority != 0xFF)
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{
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sGpuBgConfigs.configs[bg].priority = priority & 0x3;
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}
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if (mosaic != 0xFF)
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{
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sGpuBgConfigs.configs[bg].mosaic = mosaic & 0x1;
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}
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if (wraparound != 0xFF)
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{
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sGpuBgConfigs.configs[bg].wraparound = wraparound;
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}
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sGpuBgConfigs.configs[bg].unknown_2 = 0;
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sGpuBgConfigs.configs[bg].unknown_3 = 0;
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sGpuBgConfigs.configs[bg].visible = 1;
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}
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}
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u16 GetBgControlAttribute(u8 bg, u8 attributeId)
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{
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if (IsInvalidBg(bg) == FALSE && sGpuBgConfigs.configs[bg].visible != FALSE)
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{
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switch (attributeId)
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{
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case BG_CTRL_ATTR_VISIBLE:
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return sGpuBgConfigs.configs[bg].visible;
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case BG_CTRL_ATTR_CHARBASEINDEX:
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return sGpuBgConfigs.configs[bg].charBaseIndex;
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case BG_CTRL_ATTR_MAPBASEINDEX:
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return sGpuBgConfigs.configs[bg].mapBaseIndex;
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case BG_CTRL_ATTR_SCREENSIZE:
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return sGpuBgConfigs.configs[bg].screenSize;
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case BG_CTRL_ATTR_PALETTEMODE:
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return sGpuBgConfigs.configs[bg].paletteMode;
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case BG_CTRL_ATTR_PRIORITY:
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return sGpuBgConfigs.configs[bg].priority;
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case BG_CTRL_ATTR_MOSAIC:
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return sGpuBgConfigs.configs[bg].mosaic;
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case BG_CTRL_ATTR_WRAPAROUND:
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return sGpuBgConfigs.configs[bg].wraparound;
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}
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}
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return 0xFF;
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}
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u8 LoadBgVram(u8 bg, const void *src, u16 size, u16 destOffset, u8 mode)
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{
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u16 offset;
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s8 cursor;
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if (IsInvalidBg(bg) == FALSE && sGpuBgConfigs.configs[bg].visible != FALSE)
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{
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switch (mode)
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{
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case 0x1:
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offset = sGpuBgConfigs.configs[bg].charBaseIndex * BG_CHAR_SIZE;
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break;
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case 0x2:
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offset = sGpuBgConfigs.configs[bg].mapBaseIndex * BG_SCREEN_SIZE;
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break;
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default:
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cursor = -1;
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goto end;
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}
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offset = destOffset + offset;
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cursor = RequestDma3Copy(src, (void*)(offset + BG_VRAM), size, 0);
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if (cursor == -1)
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{
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return -1;
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}
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}
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else
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{
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return -1;
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}
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end:
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return cursor;
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}
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static void ShowBgInternal(u8 bg)
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{
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u16 value;
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if (IsInvalidBg(bg) == FALSE && sGpuBgConfigs.configs[bg].visible != FALSE)
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{
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value = sGpuBgConfigs.configs[bg].priority |
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(sGpuBgConfigs.configs[bg].charBaseIndex << 2) |
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(sGpuBgConfigs.configs[bg].mosaic << 6) |
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(sGpuBgConfigs.configs[bg].paletteMode << 7) |
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(sGpuBgConfigs.configs[bg].mapBaseIndex << 8) |
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(sGpuBgConfigs.configs[bg].wraparound << 13) |
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(sGpuBgConfigs.configs[bg].screenSize << 14);
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SetGpuReg((bg << 1) + 0x8, value);
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sGpuBgConfigs.bgVisibilityAndMode |= 1 << (bg + 8);
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sGpuBgConfigs.bgVisibilityAndMode &= DISPCNT_ALL_BG_AND_MODE_BITS;
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}
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}
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static void HideBgInternal(u8 bg)
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{
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if (IsInvalidBg(bg) == FALSE)
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{
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sGpuBgConfigs.bgVisibilityAndMode &= ~(1 << (bg + 8));
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sGpuBgConfigs.bgVisibilityAndMode &= DISPCNT_ALL_BG_AND_MODE_BITS;
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}
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}
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static void SyncBgVisibilityAndMode(void)
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{
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SetGpuReg(0, (GetGpuReg(0) & ~DISPCNT_ALL_BG_AND_MODE_BITS) | sGpuBgConfigs.bgVisibilityAndMode);
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}
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void SetTextModeAndHideBgs(void)
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{
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SetGpuReg(0, GetGpuReg(0) & ~DISPCNT_ALL_BG_AND_MODE_BITS);
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}
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static void SetBgAffineInternal(u8 bg, u32 srcCenterX, u32 srcCenterY, s16 dispCenterX, s16 dispCenterY, s16 scaleX, s16 scaleY, u16 rotationAngle)
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{
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struct BgAffineSrcData src;
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struct BgAffineDstData dest;
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switch (sGpuBgConfigs.bgVisibilityAndMode & 0x7)
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{
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case 1:
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if (bg != 2)
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return;
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break;
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case 2:
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if (bg < 2 || bg > 3)
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return;
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break;
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case 0:
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default:
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return;
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}
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src.texX = srcCenterX;
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src.texY = srcCenterY;
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src.scrX = dispCenterX;
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src.scrY = dispCenterY;
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src.sx = scaleX;
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src.sy = scaleY;
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src.alpha = rotationAngle;
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BgAffineSet(&src, &dest, 1);
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SetGpuReg(REG_OFFSET_BG2PA, dest.pa);
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SetGpuReg(REG_OFFSET_BG2PB, dest.pb);
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SetGpuReg(REG_OFFSET_BG2PC, dest.pc);
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SetGpuReg(REG_OFFSET_BG2PD, dest.pd);
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SetGpuReg(REG_OFFSET_BG2PA, dest.pa);
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SetGpuReg(REG_OFFSET_BG2X_L, (s16)(dest.dx));
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SetGpuReg(REG_OFFSET_BG2X_H, (s16)(dest.dx >> 16));
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SetGpuReg(REG_OFFSET_BG2Y_L, (s16)(dest.dy));
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SetGpuReg(REG_OFFSET_BG2Y_H, (s16)(dest.dy >> 16));
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}
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bool8 IsInvalidBg(u8 bg)
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{
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if (bg > 3)
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return TRUE;
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return FALSE;
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}
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int DummiedOutFireRedLeafGreenTileAllocFunc(int a1, int a2, int a3, int a4)
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{
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return 0;
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}
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void ResetBgsAndClearDma3BusyFlags(u32 leftoverFireRedLeafGreenVariable)
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{
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int i;
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ResetBgs();
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for (i = 0; i < 4; i++)
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{
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sDmaBusyBitfield[i] = 0;
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}
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gUnneededFireRedVariable = leftoverFireRedLeafGreenVariable;
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}
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void InitBgsFromTemplates(u8 bgMode, const struct BgTemplate *templates, u8 numTemplates)
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{
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int i;
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u8 bg;
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SetBgModeInternal(bgMode);
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ResetBgControlStructs();
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for (i = 0; i < numTemplates; i++)
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{
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bg = templates[i].bg;
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if (bg < 4) {
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SetBgControlAttributes(bg,
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templates[i].charBaseIndex,
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templates[i].mapBaseIndex,
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templates[i].screenSize,
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templates[i].paletteMode,
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templates[i].priority,
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0,
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0);
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sGpuBgConfigs2[bg].baseTile = templates[i].baseTile;
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sGpuBgConfigs2[bg].basePalette = 0;
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sGpuBgConfigs2[bg].unk_3 = 0;
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sGpuBgConfigs2[bg].tilemap = NULL;
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sGpuBgConfigs2[bg].bg_x = 0;
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sGpuBgConfigs2[bg].bg_y = 0;
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}
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}
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}
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void InitBgFromTemplate(const struct BgTemplate *template)
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{
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u8 bg = template->bg;
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if (bg < 4)
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{
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SetBgControlAttributes(bg,
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template->charBaseIndex,
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template->mapBaseIndex,
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template->screenSize,
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template->paletteMode,
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template->priority,
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0,
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0);
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sGpuBgConfigs2[bg].baseTile = template->baseTile;
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sGpuBgConfigs2[bg].basePalette = 0;
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sGpuBgConfigs2[bg].unk_3 = 0;
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sGpuBgConfigs2[bg].tilemap = NULL;
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sGpuBgConfigs2[bg].bg_x = 0;
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sGpuBgConfigs2[bg].bg_y = 0;
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}
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}
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void SetBgMode(u8 bgMode)
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{
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SetBgModeInternal(bgMode);
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}
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u16 LoadBgTiles(u8 bg, const void* src, u16 size, u16 destOffset)
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{
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u16 tileOffset;
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u8 cursor;
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if (GetBgControlAttribute(bg, BG_CTRL_ATTR_PALETTEMODE) == 0)
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{
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tileOffset = (sGpuBgConfigs2[bg].baseTile + destOffset) * 0x20;
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}
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else
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{
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tileOffset = (sGpuBgConfigs2[bg].baseTile + destOffset) * 0x40;
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}
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cursor = LoadBgVram(bg, src, size, tileOffset, DISPCNT_MODE_1);
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if (cursor == 0xFF)
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{
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return -1;
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}
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sDmaBusyBitfield[cursor / 0x20] |= (1 << (cursor % 0x20));
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if (gUnneededFireRedVariable == 1)
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{
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DummiedOutFireRedLeafGreenTileAllocFunc(bg, tileOffset / 0x20, size / 0x20, 1);
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}
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return cursor;
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}
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u16 LoadBgTilemap(u8 bg, const void *src, u16 size, u16 destOffset)
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{
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u8 cursor;
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cursor = LoadBgVram(bg, src, size, destOffset * 2, DISPCNT_MODE_2);
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if (cursor == 0xFF)
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{
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return -1;
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}
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sDmaBusyBitfield[cursor / 0x20] |= (1 << (cursor % 0x20));
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return cursor;
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}
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u16 Unused_LoadBgPalette(u8 bg, const void *src, u16 size, u16 destOffset)
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{
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u16 paletteOffset;
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s8 cursor;
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if (IsInvalidBg32(bg) == FALSE)
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{
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paletteOffset = (sGpuBgConfigs2[bg].basePalette * 0x20) + (destOffset * 2);
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cursor = RequestDma3Copy(src, (void*)(paletteOffset + BG_PLTT), size, 0);
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if (cursor == -1)
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{
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return -1;
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}
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}
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else
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{
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return -1;
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}
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sDmaBusyBitfield[cursor / 0x20] |= (1 << (cursor % 0x20));
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return (u8)cursor;
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}
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#ifdef NONMATCHING // Matches everything but r5 and r6 are flipped, rrr
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bool8 IsDma3ManagerBusyWithBgCopy(void)
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{
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u8 mod;
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u8 div;
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s8 reqSpace;
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int i;
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for (i = 0; i < 0x80; i++)
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{
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div = i / 0x20;
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mod = i % 0x20;
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if ((sDmaBusyBitfield[div] & (1 << mod)) != FALSE)
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{
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reqSpace = CheckForSpaceForDma3Request(i);
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if (reqSpace == -1)
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{
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return TRUE;
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}
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sDmaBusyBitfield[div] &= ~(1 << mod);
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}
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}
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return FALSE;
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}
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#else
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NAKED
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bool8 IsDma3ManagerBusyWithBgCopy(void)
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{
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asm("push {r4-r7,lr}\n\
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mov r5, #0\n\
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mov r7, #0x1\n\
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neg r7, r7\n\
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_08001ADC:\n\
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add r0, r5, #0\n\
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cmp r5, #0\n\
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bge _08001AE4\n\
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add r0, #0x1F\n\
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_08001AE4:\n\
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asr r0, #5\n\
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lsl r2, r0, #24\n\
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lsl r0, #5\n\
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sub r0, r5, r0\n\
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lsl r0, #24\n\
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lsr r0, #24\n\
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ldr r1, =sDmaBusyBitfield\n\
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lsr r2, #22\n\
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add r4, r2, r1\n\
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mov r6, #0x1\n\
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lsl r6, r0\n\
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ldr r0, [r4]\n\
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and r0, r6\n\
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cmp r0, #0\n\
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beq _08001B22\n\
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lsl r0, r5, #16\n\
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asr r0, #16\n\
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bl CheckForSpaceForDma3Request\n\
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lsl r0, #24\n\
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asr r0, #24\n\
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cmp r0, r7\n\
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bne _08001B1C\n\
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mov r0, #0x1\n\
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b _08001B2A\n\
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.pool\n\
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_08001B1C:\n\
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ldr r0, [r4]\n\
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bic r0, r6\n\
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str r0, [r4]\n\
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_08001B22:\n\
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add r5, #0x1\n\
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cmp r5, #0x7F\n\
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ble _08001ADC\n\
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mov r0, #0\n\
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_08001B2A:\n\
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pop {r4-r7}\n\
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pop {r1}\n\
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bx r1\n");
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}
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#endif // NONMATCHING
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void ShowBg(u8 bg)
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{
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ShowBgInternal(bg);
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SyncBgVisibilityAndMode();
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}
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|
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void HideBg(u8 bg)
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{
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HideBgInternal(bg);
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SyncBgVisibilityAndMode();
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}
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|
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void SetBgAttribute(u8 bg, u8 attributeId, u8 value)
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{
|
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switch (attributeId)
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{
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case 1:
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SetBgControlAttributes(bg, value, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF);
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break;
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case 2:
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|
SetBgControlAttributes(bg, 0xFF, value, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF);
|
|
break;
|
|
case 3:
|
|
SetBgControlAttributes(bg, 0xFF, 0xFF, value, 0xFF, 0xFF, 0xFF, 0xFF);
|
|
break;
|
|
case 4:
|
|
SetBgControlAttributes(bg, 0xFF, 0xFF, 0xFF, value, 0xFF, 0xFF, 0xFF);
|
|
break;
|
|
case 7:
|
|
SetBgControlAttributes(bg, 0xFF, 0xFF, 0xFF, 0xFF, value, 0xFF, 0xFF);
|
|
break;
|
|
case 5:
|
|
SetBgControlAttributes(bg, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, value, 0xFF);
|
|
break;
|
|
case 6:
|
|
SetBgControlAttributes(bg, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, value);
|
|
break;
|
|
}
|
|
}
|
|
|
|
u16 GetBgAttribute(u8 bg, u8 attributeId)
|
|
{
|
|
switch (attributeId)
|
|
{
|
|
case 1:
|
|
return GetBgControlAttribute(bg, BG_CTRL_ATTR_CHARBASEINDEX);
|
|
case 2:
|
|
return GetBgControlAttribute(bg, BG_CTRL_ATTR_MAPBASEINDEX);
|
|
case 3:
|
|
return GetBgControlAttribute(bg, BG_CTRL_ATTR_SCREENSIZE);
|
|
case 4:
|
|
return GetBgControlAttribute(bg, BG_CTRL_ATTR_PALETTEMODE);
|
|
case 7:
|
|
return GetBgControlAttribute(bg, BG_CTRL_ATTR_PRIORITY);
|
|
case 5:
|
|
return GetBgControlAttribute(bg, BG_CTRL_ATTR_MOSAIC);
|
|
case 6:
|
|
return GetBgControlAttribute(bg, BG_CTRL_ATTR_WRAPAROUND);
|
|
case 8:
|
|
switch (GetBgType(bg))
|
|
{
|
|
case 0:
|
|
return GetBgMetricTextMode(bg, 0) * 0x800;
|
|
case 1:
|
|
return GetBgMetricAffineMode(bg, 0) * 0x100;
|
|
default:
|
|
return 0;
|
|
}
|
|
case 9:
|
|
return GetBgType(bg);
|
|
case 10:
|
|
return sGpuBgConfigs2[bg].baseTile;
|
|
default:
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
u32 ChangeBgX(u8 bg, u32 value, u8 op)
|
|
{
|
|
u8 mode;
|
|
u16 temp1;
|
|
u16 temp2;
|
|
|
|
if (IsInvalidBg32(bg) != FALSE || GetBgControlAttribute(bg, BG_CTRL_ATTR_VISIBLE) == 0)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
switch (op)
|
|
{
|
|
case 0:
|
|
default:
|
|
sGpuBgConfigs2[bg].bg_x = value;
|
|
break;
|
|
case 1:
|
|
sGpuBgConfigs2[bg].bg_x += value;
|
|
break;
|
|
case 2:
|
|
sGpuBgConfigs2[bg].bg_x -= value;
|
|
break;
|
|
}
|
|
|
|
mode = GetBgMode();
|
|
|
|
switch (bg)
|
|
{
|
|
case 0:
|
|
temp1 = sGpuBgConfigs2[0].bg_x >> 0x8;
|
|
SetGpuReg(REG_OFFSET_BG0HOFS, temp1);
|
|
break;
|
|
case 1:
|
|
temp1 = sGpuBgConfigs2[1].bg_x >> 0x8;
|
|
SetGpuReg(REG_OFFSET_BG1HOFS, temp1);
|
|
break;
|
|
case 2:
|
|
if (mode == 0)
|
|
{
|
|
temp1 = sGpuBgConfigs2[2].bg_x >> 0x8;
|
|
SetGpuReg(REG_OFFSET_BG2HOFS, temp1);
|
|
}
|
|
else
|
|
{
|
|
temp1 = sGpuBgConfigs2[2].bg_x >> 0x10;
|
|
temp2 = sGpuBgConfigs2[2].bg_x & 0xFFFF;
|
|
SetGpuReg(REG_OFFSET_BG2X_H, temp1);
|
|
SetGpuReg(REG_OFFSET_BG2X_L, temp2);
|
|
}
|
|
break;
|
|
case 3:
|
|
if (mode == 0)
|
|
{
|
|
temp1 = sGpuBgConfigs2[3].bg_x >> 0x8;
|
|
SetGpuReg(REG_OFFSET_BG3HOFS, temp1);
|
|
}
|
|
else if (mode == 2)
|
|
{
|
|
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 sGpuBgConfigs2[bg].bg_x;
|
|
}
|
|
|
|
u32 GetBgX(u8 bg)
|
|
{
|
|
if (IsInvalidBg32(bg) != FALSE)
|
|
return -1;
|
|
if (GetBgControlAttribute(bg, BG_CTRL_ATTR_VISIBLE) == 0)
|
|
return -1;
|
|
return sGpuBgConfigs2[bg].bg_x;
|
|
}
|
|
|
|
u32 ChangeBgY(u8 bg, u32 value, u8 op)
|
|
{
|
|
u8 mode;
|
|
u16 temp1;
|
|
u16 temp2;
|
|
|
|
if (IsInvalidBg32(bg) != FALSE || GetBgControlAttribute(bg, BG_CTRL_ATTR_VISIBLE) == 0)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
switch (op)
|
|
{
|
|
case 0:
|
|
default:
|
|
sGpuBgConfigs2[bg].bg_y = value;
|
|
break;
|
|
case 1:
|
|
sGpuBgConfigs2[bg].bg_y += value;
|
|
break;
|
|
case 2:
|
|
sGpuBgConfigs2[bg].bg_y -= value;
|
|
break;
|
|
}
|
|
|
|
mode = GetBgMode();
|
|
|
|
switch (bg)
|
|
{
|
|
case 0:
|
|
temp1 = sGpuBgConfigs2[0].bg_y >> 0x8;
|
|
SetGpuReg(REG_OFFSET_BG0VOFS, temp1);
|
|
break;
|
|
case 1:
|
|
temp1 = sGpuBgConfigs2[1].bg_y >> 0x8;
|
|
SetGpuReg(REG_OFFSET_BG1VOFS, temp1);
|
|
break;
|
|
case 2:
|
|
if (mode == 0)
|
|
{
|
|
temp1 = sGpuBgConfigs2[2].bg_y >> 0x8;
|
|
SetGpuReg(REG_OFFSET_BG2VOFS, temp1);
|
|
}
|
|
else
|
|
{
|
|
temp1 = sGpuBgConfigs2[2].bg_y >> 0x10;
|
|
temp2 = sGpuBgConfigs2[2].bg_y & 0xFFFF;
|
|
SetGpuReg(REG_OFFSET_BG2Y_H, temp1);
|
|
SetGpuReg(REG_OFFSET_BG2Y_L, temp2);
|
|
}
|
|
break;
|
|
case 3:
|
|
if (mode == 0)
|
|
{
|
|
temp1 = sGpuBgConfigs2[3].bg_y >> 0x8;
|
|
SetGpuReg(REG_OFFSET_BG3VOFS, temp1);
|
|
}
|
|
else if (mode == 2)
|
|
{
|
|
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 sGpuBgConfigs2[bg].bg_y;
|
|
}
|
|
|
|
u32 ChangeBgY_ScreenOff(u8 bg, u32 value, u8 op)
|
|
{
|
|
u8 mode;
|
|
u16 temp1;
|
|
u16 temp2;
|
|
|
|
if (IsInvalidBg32(bg) != FALSE || GetBgControlAttribute(bg, BG_CTRL_ATTR_VISIBLE) == 0)
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
switch (op)
|
|
{
|
|
case 0:
|
|
default:
|
|
sGpuBgConfigs2[bg].bg_y = value;
|
|
break;
|
|
case 1:
|
|
sGpuBgConfigs2[bg].bg_y += value;
|
|
break;
|
|
case 2:
|
|
sGpuBgConfigs2[bg].bg_y -= value;
|
|
break;
|
|
}
|
|
|
|
mode = GetBgMode();
|
|
|
|
switch (bg)
|
|
{
|
|
case 0:
|
|
temp1 = sGpuBgConfigs2[0].bg_y >> 0x8;
|
|
SetGpuReg_ForcedBlank(REG_OFFSET_BG0VOFS, temp1);
|
|
break;
|
|
case 1:
|
|
temp1 = sGpuBgConfigs2[1].bg_y >> 0x8;
|
|
SetGpuReg_ForcedBlank(REG_OFFSET_BG1VOFS, temp1);
|
|
break;
|
|
case 2:
|
|
if (mode == 0)
|
|
{
|
|
temp1 = sGpuBgConfigs2[2].bg_y >> 0x8;
|
|
SetGpuReg_ForcedBlank(REG_OFFSET_BG2VOFS, temp1);
|
|
|
|
}
|
|
else
|
|
{
|
|
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);
|
|
}
|
|
break;
|
|
case 3:
|
|
if (mode == 0)
|
|
{
|
|
temp1 = sGpuBgConfigs2[3].bg_y >> 0x8;
|
|
SetGpuReg_ForcedBlank(REG_OFFSET_BG3VOFS, temp1);
|
|
}
|
|
else if (mode == 2)
|
|
{
|
|
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 sGpuBgConfigs2[bg].bg_y;
|
|
}
|
|
|
|
u32 GetBgY(u8 bg)
|
|
{
|
|
if (IsInvalidBg32(bg) != FALSE)
|
|
return -1;
|
|
if (GetBgControlAttribute(bg, BG_CTRL_ATTR_VISIBLE) == 0)
|
|
return -1;
|
|
return sGpuBgConfigs2[bg].bg_y;
|
|
}
|
|
|
|
void SetBgAffine(u8 bg, u32 srcCenterX, u32 srcCenterY, s16 dispCenterX, s16 dispCenterY, s16 scaleX, s16 scaleY, u16 rotationAngle)
|
|
{
|
|
SetBgAffineInternal(bg, srcCenterX, srcCenterY, dispCenterX, dispCenterY, scaleX, scaleY, rotationAngle);
|
|
}
|
|
|
|
u8 Unused_AdjustBgMosaic(u8 a1, u8 a2)
|
|
{
|
|
u16 result;
|
|
s16 test1;
|
|
s16 test2;
|
|
|
|
result = GetGpuReg(REG_OFFSET_MOSAIC);
|
|
|
|
test1 = result & 0xF;
|
|
test2 = (result >> 4) & 0xF;
|
|
result &= 0xFF00;
|
|
|
|
switch (a2)
|
|
{
|
|
case 0:
|
|
default:
|
|
test1 = a1 & 0xF;
|
|
test2 = a1 >> 0x4;
|
|
break;
|
|
case 1:
|
|
test1 = a1 & 0xF;
|
|
break;
|
|
case 2:
|
|
if ((test1 + a1) > 0xF)
|
|
{
|
|
test1 = 0xF;
|
|
}
|
|
else
|
|
{
|
|
test1 += a1;
|
|
}
|
|
break;
|
|
case 3:
|
|
if ((test1 - a1) < 0)
|
|
{
|
|
test1 = 0x0;
|
|
}
|
|
else
|
|
{
|
|
test1 -= a1;
|
|
}
|
|
break;
|
|
case 4:
|
|
test2 = a1 & 0xF;
|
|
break;
|
|
case 5:
|
|
if ((test2 + a1) > 0xF)
|
|
{
|
|
test2 = 0xF;
|
|
}
|
|
else
|
|
{
|
|
test2 += a1;
|
|
}
|
|
break;
|
|
case 6:
|
|
if ((test2 - a1) < 0)
|
|
{
|
|
test2 = 0x0;
|
|
}
|
|
else
|
|
{
|
|
test2 -= a1;
|
|
}
|
|
break;
|
|
}
|
|
|
|
result |= ((test2 << 0x4) & 0xF0);
|
|
result |= (test1 & 0xF);
|
|
|
|
SetGpuReg(REG_OFFSET_MOSAIC, result);
|
|
|
|
return result;
|
|
}
|
|
|
|
void SetBgTilemapBuffer(u8 bg, void *tilemap)
|
|
{
|
|
if (IsInvalidBg32(bg) == FALSE && GetBgControlAttribute(bg, BG_CTRL_ATTR_VISIBLE) != 0x0)
|
|
{
|
|
sGpuBgConfigs2[bg].tilemap = tilemap;
|
|
}
|
|
}
|
|
|
|
void UnsetBgTilemapBuffer(u8 bg)
|
|
{
|
|
if (IsInvalidBg32(bg) == FALSE && GetBgControlAttribute(bg, BG_CTRL_ATTR_VISIBLE) != 0x0)
|
|
{
|
|
sGpuBgConfigs2[bg].tilemap = NULL;
|
|
}
|
|
}
|
|
|
|
void* GetBgTilemapBuffer(u8 bg)
|
|
{
|
|
if (IsInvalidBg32(bg) != FALSE)
|
|
return NULL;
|
|
if (GetBgControlAttribute(bg, BG_CTRL_ATTR_VISIBLE) == 0)
|
|
return NULL;
|
|
return sGpuBgConfigs2[bg].tilemap;
|
|
}
|
|
|
|
void CopyToBgTilemapBuffer(u8 bg, const void *src, u16 mode, u16 destOffset)
|
|
{
|
|
if (IsInvalidBg32(bg) == FALSE && IsTileMapOutsideWram(bg) == FALSE)
|
|
{
|
|
if (mode != 0)
|
|
{
|
|
CpuCopy16(src, (void *)(sGpuBgConfigs2[bg].tilemap + (destOffset * 2)), mode);
|
|
}
|
|
else
|
|
{
|
|
LZ77UnCompWram(src, (void *)(sGpuBgConfigs2[bg].tilemap + (destOffset * 2)));
|
|
}
|
|
}
|
|
}
|
|
|
|
void CopyBgTilemapBufferToVram(u8 bg)
|
|
{
|
|
u16 sizeToLoad;
|
|
|
|
if (IsInvalidBg32(bg) == FALSE && IsTileMapOutsideWram(bg) == FALSE)
|
|
{
|
|
switch (GetBgType(bg))
|
|
{
|
|
case 0:
|
|
sizeToLoad = GetBgMetricTextMode(bg, 0) * 0x800;
|
|
break;
|
|
case 1:
|
|
sizeToLoad = GetBgMetricAffineMode(bg, 0) * 0x100;
|
|
break;
|
|
default:
|
|
sizeToLoad = 0;
|
|
break;
|
|
}
|
|
LoadBgVram(bg, sGpuBgConfigs2[bg].tilemap, sizeToLoad, 0, 2);
|
|
}
|
|
}
|
|
|
|
void CopyToBgTilemapBufferRect(u8 bg, const void* src, u8 destX, u8 destY, u8 width, u8 height)
|
|
{
|
|
const void* srcCopy;
|
|
u16 destX16;
|
|
u16 destY16;
|
|
u16 mode;
|
|
|
|
if (IsInvalidBg32(bg) == FALSE && IsTileMapOutsideWram(bg) == FALSE)
|
|
{
|
|
switch (GetBgType(bg))
|
|
{
|
|
case 0:
|
|
srcCopy = src;
|
|
for (destY16 = destY; destY16 < (destY + height); destY16++)
|
|
{
|
|
for (destX16 = destX; destX16 < (destX + width); destX16++)
|
|
{
|
|
((u16*)sGpuBgConfigs2[bg].tilemap)[((destY16 * 0x20) + destX16)] = *((u16*)srcCopy)++;
|
|
}
|
|
}
|
|
break;
|
|
case 1:
|
|
srcCopy = src;
|
|
mode = GetBgMetricAffineMode(bg, 0x1);
|
|
for (destY16 = destY; destY16 < (destY + height); destY16++)
|
|
{
|
|
for (destX16 = destX; destX16 < (destX + width); destX16++)
|
|
{
|
|
((u8*)sGpuBgConfigs2[bg].tilemap)[((destY16 * mode) + destX16)] = *((u8*)srcCopy)++;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void CopyToBgTilemapBufferRect_ChangePalette(u8 bg, void *src, u8 destX, u8 destY, u8 rectWidth, u8 rectHeight, u8 palette)
|
|
{
|
|
CopyRectToBgTilemapBufferRect(bg, src, 0, 0, rectWidth, rectHeight, destX, destY, rectWidth, rectHeight, palette, 0, 0);
|
|
}
|
|
// Skipping for now, it probably uses structs passed by value
|
|
/*
|
|
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)
|
|
{
|
|
u16 attribute;
|
|
u16 mode;
|
|
u16 mode2;
|
|
|
|
void* srcCopy;
|
|
u16 destX16;
|
|
u16 destY16;
|
|
|
|
if (IsInvalidBg32(bg) == FALSE && IsTileMapOutsideWram(bg) == FALSE)
|
|
{
|
|
attribute = GetBgControlAttribute(bg, BG_CTRL_ATTR_SCREENSIZE);
|
|
mode = GetBgMetricTextMode(bg, 0x1) * 0x20;
|
|
mode2 = GetBgMetricTextMode(bg, 0x2) * 0x20;
|
|
switch (GetBgType(bg))
|
|
{
|
|
case 0:
|
|
srcCopy = src;
|
|
for (destY16 = destY; destY16 < (destY + rectHeight); destY16++)
|
|
{
|
|
for (destX16 = destX; destX16 < (destX + rectWidth); destX16++)
|
|
{
|
|
CopyTileMapEntry(&((u16*)srcCopy)[(srcY * rectWidth) + srcX], &((u16*)sGpuBgConfigs2[bg].tilemap)[GetTileMapIndexFromCoords(destX16, destY16, attribute, mode, mode2)], palette1, tileOffset, palette2);
|
|
}
|
|
}
|
|
break;
|
|
case 1:
|
|
srcCopy = src;
|
|
mode = GetBgMetricAffineMode(bg, 0x1);
|
|
for (destY16 = destY; destY16 < (destY + rectHeight); destY16++)
|
|
{
|
|
for (destX16 = destX; destX16 < (destX + rectWidth); destX16++)
|
|
{
|
|
CopyTileMapEntry(&((u16*)srcCopy)[(srcY * rectWidth) + srcX], &((u16*)sGpuBgConfigs2[bg].tilemap)[GetTileMapIndexFromCoords(destX16, destY16, attribute, mode, mode2)], palette1, tileOffset, palette2);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}*/
|
|
NAKED
|
|
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)
|
|
{
|
|
asm("push {r4-r7,lr}\n\
|
|
mov r7, r10\n\
|
|
mov r6, r9\n\
|
|
mov r5, r8\n\
|
|
push {r5-r7}\n\
|
|
sub sp, #0x40\n\
|
|
str r1, [sp, #0x8]\n\
|
|
ldr r1, [sp, #0x60]\n\
|
|
ldr r4, [sp, #0x68]\n\
|
|
ldr r5, [sp, #0x6C]\n\
|
|
ldr r6, [sp, #0x70]\n\
|
|
ldr r7, [sp, #0x74]\n\
|
|
mov r8, r7\n\
|
|
ldr r7, [sp, #0x78]\n\
|
|
mov r9, r7\n\
|
|
ldr r7, [sp, #0x7C]\n\
|
|
mov r10, r7\n\
|
|
ldr r7, [sp, #0x80]\n\
|
|
mov r12, r7\n\
|
|
lsl r0, #24\n\
|
|
lsr r0, #24\n\
|
|
str r0, [sp, #0x4]\n\
|
|
lsl r2, #24\n\
|
|
lsr r2, #24\n\
|
|
str r2, [sp, #0xC]\n\
|
|
lsl r3, #24\n\
|
|
lsr r3, #24\n\
|
|
str r3, [sp, #0x10]\n\
|
|
lsl r1, #24\n\
|
|
lsr r7, r1, #24\n\
|
|
lsl r4, #24\n\
|
|
lsr r4, #24\n\
|
|
str r4, [sp, #0x14]\n\
|
|
lsl r5, #24\n\
|
|
lsr r5, #24\n\
|
|
lsl r6, #24\n\
|
|
lsr r6, #24\n\
|
|
str r6, [sp, #0x18]\n\
|
|
mov r0, r8\n\
|
|
lsl r0, #24\n\
|
|
lsr r4, r0, #24\n\
|
|
mov r1, r9\n\
|
|
lsl r1, #24\n\
|
|
lsr r1, #24\n\
|
|
str r1, [sp, #0x1C]\n\
|
|
mov r2, r10\n\
|
|
lsl r2, #16\n\
|
|
lsr r2, #16\n\
|
|
str r2, [sp, #0x20]\n\
|
|
mov r0, r12\n\
|
|
lsl r0, #16\n\
|
|
lsr r0, #16\n\
|
|
str r0, [sp, #0x24]\n\
|
|
ldr r0, [sp, #0x4]\n\
|
|
bl IsInvalidBg32\n\
|
|
cmp r0, #0\n\
|
|
beq _08002592\n\
|
|
b _080026EE\n\
|
|
_08002592:\n\
|
|
ldr r0, [sp, #0x4]\n\
|
|
bl IsTileMapOutsideWram\n\
|
|
cmp r0, #0\n\
|
|
beq _0800259E\n\
|
|
b _080026EE\n\
|
|
_0800259E:\n\
|
|
ldr r0, [sp, #0x4]\n\
|
|
mov r1, #0x4\n\
|
|
bl GetBgControlAttribute\n\
|
|
lsl r0, #16\n\
|
|
lsr r0, #16\n\
|
|
str r0, [sp, #0x30]\n\
|
|
ldr r0, [sp, #0x4]\n\
|
|
mov r1, #0x1\n\
|
|
bl GetBgMetricTextMode\n\
|
|
lsl r0, #21\n\
|
|
lsr r0, #16\n\
|
|
str r0, [sp, #0x28]\n\
|
|
ldr r0, [sp, #0x4]\n\
|
|
mov r1, #0x2\n\
|
|
bl GetBgMetricTextMode\n\
|
|
lsl r0, #21\n\
|
|
lsr r0, #16\n\
|
|
str r0, [sp, #0x2C]\n\
|
|
ldr r0, [sp, #0x4]\n\
|
|
bl GetBgType\n\
|
|
cmp r0, #0\n\
|
|
beq _080025D8\n\
|
|
cmp r0, #0x1\n\
|
|
beq _08002674\n\
|
|
b _080026EE\n\
|
|
_080025D8:\n\
|
|
ldr r1, [sp, #0x10]\n\
|
|
add r0, r1, #0\n\
|
|
mul r0, r7\n\
|
|
ldr r2, [sp, #0xC]\n\
|
|
add r0, r2\n\
|
|
lsl r0, #1\n\
|
|
ldr r1, [sp, #0x8]\n\
|
|
add r6, r1, r0\n\
|
|
add r0, r5, r4\n\
|
|
cmp r5, r0\n\
|
|
blt _080025F0\n\
|
|
b _080026EE\n\
|
|
_080025F0:\n\
|
|
ldr r2, [sp, #0x18]\n\
|
|
sub r2, r7, r2\n\
|
|
str r2, [sp, #0x34]\n\
|
|
str r0, [sp, #0x38]\n\
|
|
_080025F8:\n\
|
|
ldr r4, [sp, #0x14]\n\
|
|
ldr r7, [sp, #0x18]\n\
|
|
add r0, r4, r7\n\
|
|
add r1, r5, #0x1\n\
|
|
str r1, [sp, #0x3C]\n\
|
|
cmp r4, r0\n\
|
|
bge _0800265A\n\
|
|
ldr r2, [sp, #0x4]\n\
|
|
lsl r0, r2, #4\n\
|
|
ldr r1, =sGpuBgConfigs2+4\n\
|
|
add r0, r1\n\
|
|
mov r10, r0\n\
|
|
ldr r7, [sp, #0x20]\n\
|
|
lsl r7, #16\n\
|
|
mov r9, r7\n\
|
|
ldr r1, [sp, #0x24]\n\
|
|
lsl r0, r1, #16\n\
|
|
asr r0, #16\n\
|
|
mov r8, r0\n\
|
|
_0800261E:\n\
|
|
ldr r2, [sp, #0x2C]\n\
|
|
str r2, [sp]\n\
|
|
add r0, r4, #0\n\
|
|
add r1, r5, #0\n\
|
|
ldr r2, [sp, #0x30]\n\
|
|
ldr r3, [sp, #0x28]\n\
|
|
bl GetTileMapIndexFromCoords\n\
|
|
lsl r0, #16\n\
|
|
lsr r0, #15\n\
|
|
mov r7, r10\n\
|
|
ldr r1, [r7]\n\
|
|
add r1, r0\n\
|
|
mov r0, r8\n\
|
|
str r0, [sp]\n\
|
|
add r0, r6, #0\n\
|
|
ldr r2, [sp, #0x1C]\n\
|
|
mov r7, r9\n\
|
|
asr r3, r7, #16\n\
|
|
bl CopyTileMapEntry\n\
|
|
add r6, #0x2\n\
|
|
add r0, r4, #0x1\n\
|
|
lsl r0, #16\n\
|
|
lsr r4, r0, #16\n\
|
|
ldr r1, [sp, #0x14]\n\
|
|
ldr r2, [sp, #0x18]\n\
|
|
add r0, r1, r2\n\
|
|
cmp r4, r0\n\
|
|
blt _0800261E\n\
|
|
_0800265A:\n\
|
|
ldr r5, [sp, #0x34]\n\
|
|
lsl r0, r5, #1\n\
|
|
add r6, r0\n\
|
|
ldr r7, [sp, #0x3C]\n\
|
|
lsl r0, r7, #16\n\
|
|
lsr r5, r0, #16\n\
|
|
ldr r0, [sp, #0x38]\n\
|
|
cmp r5, r0\n\
|
|
blt _080025F8\n\
|
|
b _080026EE\n\
|
|
.pool\n\
|
|
_08002674:\n\
|
|
ldr r1, [sp, #0x10]\n\
|
|
add r0, r1, #0\n\
|
|
mul r0, r7\n\
|
|
ldr r2, [sp, #0xC]\n\
|
|
add r0, r2\n\
|
|
ldr r1, [sp, #0x8]\n\
|
|
add r6, r1, r0\n\
|
|
ldr r0, [sp, #0x4]\n\
|
|
mov r1, #0x1\n\
|
|
bl GetBgMetricAffineMode\n\
|
|
lsl r0, #16\n\
|
|
lsr r0, #16\n\
|
|
mov r9, r0\n\
|
|
add r0, r5, r4\n\
|
|
cmp r5, r0\n\
|
|
bge _080026EE\n\
|
|
ldr r2, [sp, #0x18]\n\
|
|
sub r2, r7, r2\n\
|
|
str r2, [sp, #0x34]\n\
|
|
str r0, [sp, #0x38]\n\
|
|
ldr r7, =sGpuBgConfigs2+4\n\
|
|
mov r10, r7\n\
|
|
ldr r0, [sp, #0x4]\n\
|
|
lsl r0, #4\n\
|
|
mov r8, r0\n\
|
|
_080026A8:\n\
|
|
ldr r4, [sp, #0x14]\n\
|
|
ldr r1, [sp, #0x18]\n\
|
|
add r0, r4, r1\n\
|
|
add r2, r5, #0x1\n\
|
|
str r2, [sp, #0x3C]\n\
|
|
cmp r4, r0\n\
|
|
bge _080026DE\n\
|
|
mov r3, r8\n\
|
|
add r3, r10\n\
|
|
mov r7, r9\n\
|
|
mul r7, r5\n\
|
|
mov r12, r7\n\
|
|
add r2, r0, #0\n\
|
|
_080026C2:\n\
|
|
ldr r1, [r3]\n\
|
|
mov r5, r12\n\
|
|
add r0, r5, r4\n\
|
|
add r1, r0\n\
|
|
ldrb r0, [r6]\n\
|
|
ldr r7, [sp, #0x20]\n\
|
|
add r0, r7\n\
|
|
strb r0, [r1]\n\
|
|
add r6, #0x1\n\
|
|
add r0, r4, #0x1\n\
|
|
lsl r0, #16\n\
|
|
lsr r4, r0, #16\n\
|
|
cmp r4, r2\n\
|
|
blt _080026C2\n\
|
|
_080026DE:\n\
|
|
ldr r0, [sp, #0x34]\n\
|
|
add r6, r0\n\
|
|
ldr r1, [sp, #0x3C]\n\
|
|
lsl r0, r1, #16\n\
|
|
lsr r5, r0, #16\n\
|
|
ldr r2, [sp, #0x38]\n\
|
|
cmp r5, r2\n\
|
|
blt _080026A8\n\
|
|
_080026EE:\n\
|
|
add sp, #0x40\n\
|
|
pop {r3-r5}\n\
|
|
mov r8, r3\n\
|
|
mov r9, r4\n\
|
|
mov r10, r5\n\
|
|
pop {r4-r7}\n\
|
|
pop {r0}\n\
|
|
bx r0\n\
|
|
.pool\n");
|
|
}
|
|
|
|
void FillBgTilemapBufferRect_Palette0(u8 bg, u16 tileNum, u8 x, u8 y, u8 width, u8 height)
|
|
{
|
|
u16 x16;
|
|
u16 y16;
|
|
u16 mode;
|
|
|
|
if (IsInvalidBg32(bg) == FALSE && IsTileMapOutsideWram(bg) == FALSE)
|
|
{
|
|
switch (GetBgType(bg))
|
|
{
|
|
case 0:
|
|
for (y16 = y; y16 < (y + height); y16++)
|
|
{
|
|
for (x16 = x; x16 < (x + width); x16++)
|
|
{
|
|
((u16*)sGpuBgConfigs2[bg].tilemap)[((y16 * 0x20) + x16)] = tileNum;
|
|
}
|
|
}
|
|
break;
|
|
case 1:
|
|
mode = GetBgMetricAffineMode(bg, 0x1);
|
|
for (y16 = y; y16 < (y + height); y16++)
|
|
{
|
|
for (x16 = x; x16 < (x + width); x16++)
|
|
{
|
|
((u8*)sGpuBgConfigs2[bg].tilemap)[((y16 * mode) + x16)] = tileNum;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void FillBgTilemapBufferRect(u8 bg, u16 tileNum, u8 x, u8 y, u8 width, u8 height, u8 palette)
|
|
{
|
|
WriteSequenceToBgTilemapBuffer(bg, tileNum, x, y, width, height, palette, 0);
|
|
}
|
|
|
|
void WriteSequenceToBgTilemapBuffer(u8 bg, u16 firstTileNum, u8 x, u8 y, u8 width, u8 height, u8 paletteSlot, s16 tileNumDelta)
|
|
{
|
|
u16 mode;
|
|
u16 mode2;
|
|
u16 attribute;
|
|
u16 mode3;
|
|
|
|
u16 x16;
|
|
u16 y16;
|
|
|
|
if (IsInvalidBg32(bg) == FALSE && IsTileMapOutsideWram(bg) == FALSE)
|
|
{
|
|
attribute = GetBgControlAttribute(bg, BG_CTRL_ATTR_SCREENSIZE);
|
|
mode = GetBgMetricTextMode(bg, 0x1) * 0x20;
|
|
mode2 = GetBgMetricTextMode(bg, 0x2) * 0x20;
|
|
switch (GetBgType(bg))
|
|
{
|
|
case 0:
|
|
for (y16 = y; y16 < (y + height); y16++)
|
|
{
|
|
for (x16 = x; x16 < (x + width); x16++)
|
|
{
|
|
CopyTileMapEntry(&firstTileNum, &((u16*)sGpuBgConfigs2[bg].tilemap)[(u16)GetTileMapIndexFromCoords(x16, y16, attribute, mode, mode2)], paletteSlot, 0, 0);
|
|
firstTileNum = (firstTileNum & 0xFC00) + ((firstTileNum + tileNumDelta) & 0x3FF);
|
|
}
|
|
}
|
|
break;
|
|
case 1:
|
|
mode3 = GetBgMetricAffineMode(bg, 0x1);
|
|
for (y16 = y; y16 < (y + height); y16++)
|
|
{
|
|
for (x16 = x; x16 < (x + width); x16++)
|
|
{
|
|
((u8*)sGpuBgConfigs2[bg].tilemap)[(y16 * mode3) + x16] = firstTileNum;
|
|
firstTileNum = (firstTileNum & 0xFC00) + ((firstTileNum + tileNumDelta) & 0x3FF);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
u16 GetBgMetricTextMode(u8 bg, u8 whichMetric)
|
|
{
|
|
u8 attribute;
|
|
|
|
attribute = GetBgControlAttribute(bg, BG_CTRL_ATTR_SCREENSIZE);
|
|
|
|
switch (whichMetric)
|
|
{
|
|
case 0:
|
|
switch (attribute)
|
|
{
|
|
case 0:
|
|
return 1;
|
|
case 1:
|
|
case 2:
|
|
return 2;
|
|
case 3:
|
|
return 4;
|
|
}
|
|
break;
|
|
case 1:
|
|
switch (attribute)
|
|
{
|
|
case 0:
|
|
return 1;
|
|
case 1:
|
|
return 2;
|
|
case 2:
|
|
return 1;
|
|
case 3:
|
|
return 2;
|
|
}
|
|
break;
|
|
case 2:
|
|
switch (attribute)
|
|
{
|
|
case 0:
|
|
case 1:
|
|
return 1;
|
|
case 2:
|
|
case 3:
|
|
return 2;
|
|
}
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
u32 GetBgMetricAffineMode(u8 bg, u8 whichMetric)
|
|
{
|
|
u8 attribute;
|
|
|
|
attribute = GetBgControlAttribute(bg, BG_CTRL_ATTR_SCREENSIZE);
|
|
|
|
switch (whichMetric)
|
|
{
|
|
case 0:
|
|
switch (attribute)
|
|
{
|
|
case 0:
|
|
return 0x1;
|
|
case 1:
|
|
return 0x4;
|
|
case 2:
|
|
return 0x10;
|
|
case 3:
|
|
return 0x40;
|
|
}
|
|
break;
|
|
case 1:
|
|
case 2:
|
|
return 0x10 << attribute;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
u32 GetTileMapIndexFromCoords(s32 x, s32 y, s32 screenSize, u32 screenWidth, u32 screenHeight)
|
|
{
|
|
x = x & (screenWidth - 1);
|
|
y = y & (screenHeight - 1);
|
|
|
|
switch (screenSize)
|
|
{
|
|
case 0:
|
|
case 2:
|
|
break;
|
|
case 3:
|
|
if (y >= 0x20)
|
|
y += 0x20;
|
|
case 1:
|
|
if (x >= 0x20)
|
|
{
|
|
x -= 0x20;
|
|
y += 0x20;
|
|
}
|
|
}
|
|
return (y * 0x20) + x;
|
|
}
|
|
|
|
#ifdef NONMATCHING // This one has some weird switch statement cases that refuse to cooperate
|
|
void CopyTileMapEntry(u16 *src, u16 *dest, s32 palette1, u32 tileOffset, u32 palette2)
|
|
{
|
|
u16 test;
|
|
switch (palette1)
|
|
{
|
|
default:
|
|
if (palette1 > 0x10 || palette1 < 0)
|
|
test = *src + tileOffset + (palette2 << 12);
|
|
else
|
|
test = ((*src + tileOffset) & 0xFFF) + ((palette1 + palette2) << 12);
|
|
break;
|
|
case 0x10:
|
|
test = ((*dest & 0xFC00) + (palette2 << 12)) | ((*src + tileOffset) & 0x3FF);
|
|
break;
|
|
}
|
|
|
|
*dest = test;
|
|
}
|
|
#else
|
|
NAKED
|
|
void CopyTileMapEntry(u16 *src, u16 *dest, s32 palette1, u32 tileOffset, u32 palette2)
|
|
{
|
|
asm("push {r4-r6,lr}\n\
|
|
add r4, r0, #0\n\
|
|
add r6, r1, #0\n\
|
|
ldr r5, [sp, #0x10]\n\
|
|
cmp r2, #0x10\n\
|
|
beq _08002B14\n\
|
|
cmp r2, #0x10\n\
|
|
bgt _08002B34\n\
|
|
cmp r2, #0\n\
|
|
blt _08002B34\n\
|
|
ldrh r0, [r4]\n\
|
|
add r0, r3\n\
|
|
ldr r3, =0x00000fff\n\
|
|
add r1, r3, #0\n\
|
|
and r0, r1\n\
|
|
add r1, r2, r5\n\
|
|
lsl r1, #12\n\
|
|
b _08002B3A\n\
|
|
.pool\n\
|
|
_08002B14:\n\
|
|
ldrh r1, [r6]\n\
|
|
mov r0, #0xFC\n\
|
|
lsl r0, #8\n\
|
|
and r1, r0\n\
|
|
lsl r2, r5, #12\n\
|
|
add r2, r1, r2\n\
|
|
ldrh r0, [r4]\n\
|
|
add r0, r3\n\
|
|
ldr r3, =0x000003ff\n\
|
|
add r1, r3, #0\n\
|
|
and r0, r1\n\
|
|
orr r0, r2\n\
|
|
b _08002B3C\n\
|
|
.pool\n\
|
|
_08002B34:\n\
|
|
ldrh r0, [r4]\n\
|
|
add r0, r3\n\
|
|
lsl r1, r5, #12\n\
|
|
_08002B3A:\n\
|
|
add r0, r1\n\
|
|
_08002B3C:\n\
|
|
lsl r0, #16\n\
|
|
lsr r1, r0, #16\n\
|
|
strh r1, [r6]\n\
|
|
pop {r4-r6}\n\
|
|
pop {r0}\n\
|
|
bx r0\n");
|
|
}
|
|
#endif // NONMATCHING
|
|
|
|
u32 GetBgType(u8 bg)
|
|
{
|
|
u8 mode;
|
|
|
|
mode = GetBgMode();
|
|
|
|
|
|
switch (bg)
|
|
{
|
|
case 0:
|
|
case 1:
|
|
switch (mode)
|
|
{
|
|
case 0:
|
|
case 1:
|
|
return 0;
|
|
}
|
|
break;
|
|
case 2:
|
|
switch (mode)
|
|
{
|
|
case 0:
|
|
return 0;
|
|
case 1:
|
|
case 2:
|
|
return 1;
|
|
}
|
|
break;
|
|
case 3:
|
|
switch (mode)
|
|
{
|
|
case 0:
|
|
return 0;
|
|
case 2:
|
|
return 1;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return 0xFFFF;
|
|
}
|
|
|
|
bool32 IsInvalidBg32(u8 bg)
|
|
{
|
|
if (bg > 3)
|
|
return TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
bool32 IsTileMapOutsideWram(u8 bg)
|
|
{
|
|
if (sGpuBgConfigs2[bg].tilemap > (void*)IWRAM_END)
|
|
return TRUE;
|
|
if (sGpuBgConfigs2[bg].tilemap == 0x0)
|
|
return TRUE;
|
|
return FALSE;
|
|
}
|