mirror of
https://github.com/pret/pokefirered.git
synced 2026-05-19 19:38:00 -05:00
1204 lines
35 KiB
C
1204 lines
35 KiB
C
#include "global.h"
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#include "gflib.h"
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#include "util.h"
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#include "decompress.h"
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#include "task.h"
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enum
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{
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NORMAL_FADE,
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FAST_FADE,
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HARDWARE_FADE,
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TIME_OF_DAY_FADE,
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};
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static u32 UpdateNormalPaletteFade(void);
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static void BeginFastPaletteFadeInternal(u32);
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static u32 UpdateFastPaletteFade(void);
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static u8 UpdateTimeOfDayPaletteFade(void);
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static u32 UpdateHardwarePaletteFade(void);
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static void UpdateBlendRegisters(void);
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static bool32 IsSoftwarePaletteFadeFinishing(void);
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static void Task_BlendPalettesGradually(u8 taskId);
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ALIGNED(4) EWRAM_DATA u16 gPlttBufferUnfaded[PLTT_BUFFER_SIZE] = {0};
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ALIGNED(4) EWRAM_DATA u16 gPlttBufferFaded[PLTT_BUFFER_SIZE] = {0};
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EWRAM_DATA struct PaletteFadeControl gPaletteFade = {0};
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static EWRAM_DATA u32 sPlttBufferTransferPending = 0;
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static const u8 sRoundedDownGrayscaleMap[] =
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{
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0, 0, 0, 0, 0,
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5, 5, 5, 5, 5,
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11, 11, 11, 11, 11,
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16, 16, 16, 16, 16,
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21, 21, 21, 21, 21,
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27, 27, 27, 27, 27,
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31, 31
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};
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void LoadCompressedPalette(const u32 *src, u32 offset, u32 size)
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{
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LZDecompressWram(src, gDecompressionBuffer);
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CpuCopy16(gDecompressionBuffer, &gPlttBufferUnfaded[offset], size);
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CpuCopy16(gDecompressionBuffer, &gPlttBufferFaded[offset], size);
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}
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void LoadPalette(const void *src, u32 offset, u32 size)
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{
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CpuCopy16(src, &gPlttBufferUnfaded[offset], size);
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CpuCopy16(src, &gPlttBufferFaded[offset], size);
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}
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// Drop in replacement for LoadPalette, uses CpuFastCopy, size must be 0 % 32
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void LoadPaletteFast(const void *src, u32 offset, u32 size)
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{
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if ((u32)src & 3) // In case palette is not 4 byte aligned
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return LoadPalette(src, offset, size);
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CpuFastCopy(src, &gPlttBufferUnfaded[offset], size);
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// Copying from EWRAM->EWRAM is faster than ROM->EWRAM
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CpuFastCopy(&gPlttBufferUnfaded[offset], &gPlttBufferFaded[offset], size);
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}
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void FillPalette(u32 value, u32 offset, u32 size)
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{
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CpuFill16(value, &gPlttBufferUnfaded[offset], size);
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CpuFill16(value, &gPlttBufferFaded[offset], size);
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}
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void TransferPlttBuffer(void)
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{
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if (!gPaletteFade.bufferTransferDisabled)
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{
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void *src = gPlttBufferFaded;
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void *dest = (void *)PLTT;
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DmaCopy16(3, src, dest, PLTT_SIZE);
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sPlttBufferTransferPending = FALSE;
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if (gPaletteFade.mode == HARDWARE_FADE && gPaletteFade.active)
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UpdateBlendRegisters();
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}
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}
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u32 UpdatePaletteFade(void)
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{
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u32 result;
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if (sPlttBufferTransferPending)
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return PALETTE_FADE_STATUS_LOADING;
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if (gPaletteFade.mode == NORMAL_FADE)
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result = UpdateNormalPaletteFade();
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else if (gPaletteFade.mode == FAST_FADE)
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result = UpdateFastPaletteFade();
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else if (gPaletteFade.mode == TIME_OF_DAY_FADE)
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result = UpdateTimeOfDayPaletteFade();
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else
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result = UpdateHardwarePaletteFade();
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sPlttBufferTransferPending = gPaletteFade.multipurpose1;
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return result;
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}
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void ResetPaletteFade(void)
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{
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ResetPaletteFadeControl();
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}
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bool32 BeginNormalPaletteFade(u32 selectedPalettes, s8 delay, u8 startY, u8 targetY, u32 blendColor)
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{
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u8 temp;
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if (gPaletteFade.active)
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{
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return FALSE;
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}
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else
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{
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gPaletteFade.deltaY = 2;
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if (delay < 0)
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{
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gPaletteFade.deltaY += (delay * -1);
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delay = 0;
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}
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gPaletteFade_selectedPalettes = selectedPalettes;
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gPaletteFade.delayCounter = delay;
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gPaletteFade_delay = delay;
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gPaletteFade.y = startY;
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gPaletteFade.targetY = targetY;
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gPaletteFade.blendColor = blendColor;
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gPaletteFade.active = TRUE;
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gPaletteFade.mode = NORMAL_FADE;
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if (startY < targetY)
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gPaletteFade.yDec = FALSE;
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else
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gPaletteFade.yDec = TRUE;
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UpdatePaletteFade();
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temp = gPaletteFade.bufferTransferDisabled;
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gPaletteFade.bufferTransferDisabled = FALSE;
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CpuCopy32(gPlttBufferFaded, (void *)PLTT, PLTT_SIZE);
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sPlttBufferTransferPending = FALSE;
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if (gPaletteFade.mode == HARDWARE_FADE && gPaletteFade.active)
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UpdateBlendRegisters();
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gPaletteFade.bufferTransferDisabled = temp;
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return TRUE;
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}
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}
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// Like normal palette fade but respects sprite/tile palettes immune to time of day fading
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bool32 BeginTimeOfDayPaletteFade(u32 selectedPalettes, s8 delay, u8 startY, u8 targetY, struct BlendSettings *bld0, struct BlendSettings *bld1, u32 weight, u32 color)
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{
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u8 temp;
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if (gPaletteFade.active)
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{
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return FALSE;
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}
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else
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{
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gPaletteFade.deltaY = 2;
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if (delay < 0)
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{
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gPaletteFade.deltaY += (delay * -1);
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delay = 0;
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}
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gPaletteFade_selectedPalettes = selectedPalettes;
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gPaletteFade.delayCounter = delay;
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gPaletteFade_delay = delay;
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gPaletteFade.y = startY;
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gPaletteFade.targetY = targetY;
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gPaletteFade.active = 1;
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gPaletteFade.mode = TIME_OF_DAY_FADE;
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gPaletteFade.blendColor = color;
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gPaletteFade.bld0 = bld0;
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gPaletteFade.bld1 = bld1;
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gPaletteFade.weight = weight;
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if (startY < targetY)
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gPaletteFade.yDec = 0;
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else
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gPaletteFade.yDec = 1;
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UpdatePaletteFade();
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temp = gPaletteFade.bufferTransferDisabled;
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gPaletteFade.bufferTransferDisabled = 0;
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CpuCopy32(gPlttBufferFaded, (void *)PLTT, PLTT_SIZE);
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sPlttBufferTransferPending = 0;
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if (gPaletteFade.mode == HARDWARE_FADE && gPaletteFade.active)
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UpdateBlendRegisters();
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gPaletteFade.bufferTransferDisabled = temp;
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return TRUE;
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}
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}
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void ResetPaletteFadeControl(void)
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{
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gPaletteFade.multipurpose1 = 0;
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gPaletteFade.multipurpose2 = 0;
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gPaletteFade.delayCounter = 0;
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gPaletteFade.y = 0;
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gPaletteFade.targetY = 0;
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gPaletteFade.blendColor = 0;
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gPaletteFade.active = FALSE;
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gPaletteFade.multipurpose2 = 0; // assign same value twice
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gPaletteFade.yDec = FALSE;
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gPaletteFade.bufferTransferDisabled = FALSE;
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gPaletteFade.shouldResetBlendRegisters = FALSE;
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gPaletteFade.hardwareFadeFinishing = FALSE;
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gPaletteFade.softwareFadeFinishing = FALSE;
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gPaletteFade.softwareFadeFinishingCounter = 0;
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gPaletteFade.objPaletteToggle = 0;
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gPaletteFade.deltaY = 2;
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}
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// Like normal palette fade, but respects sprite/tile palettes immune to time of day fading
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static u8 UpdateTimeOfDayPaletteFade(void)
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{
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u16 paletteOffset;
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u16 selectedPalettes;
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u16 timePalettes = 0; // palettes passed to the time-blender
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u16 copyPalettes;
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u16 * src;
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u16 * dst;
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if (!gPaletteFade.active)
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return PALETTE_FADE_STATUS_DONE;
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if (IsSoftwarePaletteFadeFinishing())
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return gPaletteFade.active ? PALETTE_FADE_STATUS_ACTIVE : PALETTE_FADE_STATUS_DONE;
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if (!gPaletteFade.objPaletteToggle)
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{
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if (gPaletteFade.delayCounter < gPaletteFade_delay)
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{
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gPaletteFade.delayCounter++;
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return 2;
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}
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gPaletteFade.delayCounter = 0;
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}
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paletteOffset = 0;
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if (!gPaletteFade.objPaletteToggle)
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{
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selectedPalettes = gPaletteFade_selectedPalettes;
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}
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else
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{
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selectedPalettes = gPaletteFade_selectedPalettes >> 16;
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paletteOffset = 256;
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}
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src = gPlttBufferUnfaded + paletteOffset;
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dst = gPlttBufferFaded + paletteOffset;
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// First pply TOD blend to relevant subset of palettes
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if (gPaletteFade.objPaletteToggle) // Sprite palettes, don't blend those with tags
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{
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u32 i;
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u32 j = 1;
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for (i = 0; i < 16; i++, j <<= 1) // Mask out palettes that should not be light blended
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{
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if ((selectedPalettes & j) && !IS_BLEND_IMMUNE_TAG(GetSpritePaletteTagByPaletteNum(i)))
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timePalettes |= j;
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}
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}
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else // tile palettes, don't blend [13, 15]
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{
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timePalettes = selectedPalettes & PALETTES_MAP;
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}
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TimeMixPalettes(timePalettes, src, dst, gPaletteFade.bld0, gPaletteFade.bld1, gPaletteFade.weight);
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// palettes that were not blended above must be copied through
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if ((copyPalettes = ~timePalettes))
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{
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u16 * src1 = src;
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u16 * dst1 = dst;
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while (copyPalettes)
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{
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if (copyPalettes & 1)
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CpuFastCopy(src1, dst1, 32);
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copyPalettes >>= 1;
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src1 += 16;
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dst1 += 16;
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}
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}
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// Then, blend from faded->faded with native BlendPalettes
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BlendPalettesFine(selectedPalettes, dst, dst, gPaletteFade.y, gPaletteFade.blendColor);
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gPaletteFade.objPaletteToggle ^= 1;
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if (!gPaletteFade.objPaletteToggle)
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{
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if ((gPaletteFade.yDec && gPaletteFade.y == 0) || (!gPaletteFade.yDec && gPaletteFade.y == gPaletteFade.targetY))
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{
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gPaletteFade_selectedPalettes = 0;
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gPaletteFade.softwareFadeFinishing = 1;
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}
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else
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{
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s8 val;
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if (!gPaletteFade.yDec)
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{
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val = gPaletteFade.y;
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val += gPaletteFade.deltaY;
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if (val > gPaletteFade.targetY)
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val = gPaletteFade.targetY;
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gPaletteFade.y = val;
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}
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else
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{
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val = gPaletteFade.y;
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val -= gPaletteFade.deltaY;
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if (val < 0)
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val = 0;
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gPaletteFade.y = val;
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}
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}
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}
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// gPaletteFade.active cannot change since the last time it was checked. So this
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// is equivalent to `return PALETTE_FADE_STATUS_ACTIVE;`
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return PALETTE_FADE_STATUS_ACTIVE;
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}
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static u32 UpdateNormalPaletteFade(void)
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{
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u16 paletteOffset;
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u16 selectedPalettes;
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if (!gPaletteFade.active)
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return PALETTE_FADE_STATUS_DONE;
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if (IsSoftwarePaletteFadeFinishing())
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{
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return gPaletteFade.active ? PALETTE_FADE_STATUS_ACTIVE : PALETTE_FADE_STATUS_DONE;
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}
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else
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{
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if (!gPaletteFade.objPaletteToggle)
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{
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if (gPaletteFade.delayCounter < gPaletteFade_delay)
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{
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gPaletteFade.delayCounter++;
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return 2;
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}
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gPaletteFade.delayCounter = 0;
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}
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paletteOffset = 0;
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if (!gPaletteFade.objPaletteToggle)
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{
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selectedPalettes = gPaletteFade_selectedPalettes;
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}
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else
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{
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selectedPalettes = gPaletteFade_selectedPalettes >> 16;
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paletteOffset = OBJ_PLTT_OFFSET;
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}
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while (selectedPalettes)
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{
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if (selectedPalettes & 1)
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BlendPalette(paletteOffset,
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16,
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gPaletteFade.y,
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gPaletteFade.blendColor);
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selectedPalettes >>= 1;
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paletteOffset += 16;
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}
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gPaletteFade.objPaletteToggle ^= 1;
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if (!gPaletteFade.objPaletteToggle)
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{
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if (gPaletteFade.y == gPaletteFade.targetY)
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{
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gPaletteFade_selectedPalettes = 0;
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gPaletteFade.softwareFadeFinishing = TRUE;
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}
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else
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{
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s8 val;
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if (!gPaletteFade.yDec)
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{
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val = gPaletteFade.y;
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val += gPaletteFade.deltaY;
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if (val > gPaletteFade.targetY)
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val = gPaletteFade.targetY;
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gPaletteFade.y = val;
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}
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else
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{
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val = gPaletteFade.y;
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val -= gPaletteFade.deltaY;
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if (val < gPaletteFade.targetY)
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val = gPaletteFade.targetY;
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gPaletteFade.y = val;
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}
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}
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}
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// gPaletteFade.active cannot change since the last time it was checked. So this
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// is equivalent to `return PALETTE_FADE_STATUS_ACTIVE;`
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return gPaletteFade.active ? PALETTE_FADE_STATUS_ACTIVE : PALETTE_FADE_STATUS_DONE;
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}
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}
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void InvertPlttBuffer(u32 selectedPalettes)
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{
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u16 paletteOffset = 0;
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while (selectedPalettes)
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{
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if (selectedPalettes & 1)
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{
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u8 i;
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for (i = 0; i < 16; ++i)
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gPlttBufferFaded[paletteOffset + i] = ~gPlttBufferFaded[paletteOffset + i];
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}
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selectedPalettes >>= 1;
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paletteOffset += 16;
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}
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}
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void TintPlttBuffer(u32 selectedPalettes, s8 r, s8 g, s8 b)
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{
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u16 paletteOffset = 0;
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while (selectedPalettes)
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{
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if (selectedPalettes & 1)
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{
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u32 i;
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for (i = 0; i < 16; i++)
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{
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struct PlttData *data = (struct PlttData *)&gPlttBufferFaded[paletteOffset + i];
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data->r += r;
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data->g += g;
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data->b += b;
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}
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}
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selectedPalettes >>= 1;
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paletteOffset += 16;
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}
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}
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void UnfadePlttBuffer(u32 selectedPalettes)
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{
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u16 paletteOffset = 0;
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while (selectedPalettes)
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{
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if (selectedPalettes & 1)
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{
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u8 i;
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for (i = 0; i < 16; i++)
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gPlttBufferFaded[paletteOffset + i] = gPlttBufferUnfaded[paletteOffset + i];
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}
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selectedPalettes >>= 1;
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paletteOffset += 16;
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}
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}
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void BeginFastPaletteFade(u32 submode)
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{
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gPaletteFade.deltaY = 2;
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BeginFastPaletteFadeInternal(submode);
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}
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static void BeginFastPaletteFadeInternal(u32 submode)
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{
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gPaletteFade.y = 31;
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gPaletteFade_submode = submode & 0x3F;
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gPaletteFade.active = TRUE;
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gPaletteFade.mode = FAST_FADE;
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if (submode == FAST_FADE_IN_FROM_BLACK)
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CpuFill16(RGB_BLACK, gPlttBufferFaded, PLTT_SIZE);
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if (submode == FAST_FADE_IN_FROM_WHITE)
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CpuFill16(RGB_WHITE, gPlttBufferFaded, PLTT_SIZE);
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UpdatePaletteFade();
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}
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static u32 UpdateFastPaletteFade(void)
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{
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u32 i;
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u16 paletteOffsetStart, paletteOffsetEnd;
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s8 r0, g0, b0, r, g, b;
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if (!gPaletteFade.active)
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return PALETTE_FADE_STATUS_DONE;
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if (IsSoftwarePaletteFadeFinishing())
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return gPaletteFade.active ? PALETTE_FADE_STATUS_ACTIVE : PALETTE_FADE_STATUS_DONE;
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if (gPaletteFade.objPaletteToggle)
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{
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paletteOffsetStart = OBJ_PLTT_OFFSET;
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paletteOffsetEnd = PLTT_BUFFER_SIZE;
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}
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else
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{
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paletteOffsetStart = 0;
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paletteOffsetEnd = OBJ_PLTT_OFFSET;
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}
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switch (gPaletteFade_submode)
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{
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case FAST_FADE_IN_FROM_WHITE:
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for (i = paletteOffsetStart; i < paletteOffsetEnd; ++i)
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{
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struct PlttData *unfaded;
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struct PlttData *faded;
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|
unfaded = (struct PlttData *)&gPlttBufferUnfaded[i];
|
|
r0 = unfaded->r;
|
|
g0 = unfaded->g;
|
|
b0 = unfaded->b;
|
|
faded = (struct PlttData *)&gPlttBufferFaded[i];
|
|
r = faded->r - 2;
|
|
g = faded->g - 2;
|
|
b = faded->b - 2;
|
|
if (r < r0)
|
|
r = r0;
|
|
if (g < g0)
|
|
g = g0;
|
|
if (b < b0)
|
|
b = b0;
|
|
gPlttBufferFaded[i] = r | (g << 5) | (b << 10);
|
|
}
|
|
break;
|
|
case FAST_FADE_OUT_TO_WHITE:
|
|
for (i = paletteOffsetStart; i < paletteOffsetEnd; ++i)
|
|
{
|
|
struct PlttData *data = (struct PlttData *)&gPlttBufferFaded[i];
|
|
|
|
r = data->r + 2;
|
|
g = data->g + 2;
|
|
b = data->b + 2;
|
|
if (r > 31)
|
|
r = 31;
|
|
if (g > 31)
|
|
g = 31;
|
|
if (b > 31)
|
|
b = 31;
|
|
gPlttBufferFaded[i] = r | (g << 5) | (b << 10);
|
|
}
|
|
break;
|
|
case FAST_FADE_IN_FROM_BLACK:
|
|
for (i = paletteOffsetStart; i < paletteOffsetEnd; ++i)
|
|
{
|
|
struct PlttData *unfaded;
|
|
struct PlttData *faded;
|
|
|
|
unfaded = (struct PlttData *)&gPlttBufferUnfaded[i];
|
|
r0 = unfaded->r;
|
|
g0 = unfaded->g;
|
|
b0 = unfaded->b;
|
|
faded = (struct PlttData *)&gPlttBufferFaded[i];
|
|
r = faded->r + 2;
|
|
g = faded->g + 2;
|
|
b = faded->b + 2;
|
|
if (r > r0)
|
|
r = r0;
|
|
if (g > g0)
|
|
g = g0;
|
|
if (b > b0)
|
|
b = b0;
|
|
gPlttBufferFaded[i] = r | (g << 5) | (b << 10);
|
|
}
|
|
break;
|
|
case FAST_FADE_OUT_TO_BLACK:
|
|
for (i = paletteOffsetStart; i < paletteOffsetEnd; ++i)
|
|
{
|
|
struct PlttData *data = (struct PlttData *)&gPlttBufferFaded[i];
|
|
|
|
r = data->r - 2;
|
|
g = data->g - 2;
|
|
b = data->b - 2;
|
|
if (r < 0)
|
|
r = 0;
|
|
if (g < 0)
|
|
g = 0;
|
|
if (b < 0)
|
|
b = 0;
|
|
gPlttBufferFaded[i] = r | (g << 5) | (b << 10);
|
|
}
|
|
}
|
|
gPaletteFade.objPaletteToggle ^= 1;
|
|
if (gPaletteFade.objPaletteToggle)
|
|
// gPaletteFade.active cannot change since the last time it was checked. So this
|
|
// is equivalent to `return PALETTE_FADE_STATUS_ACTIVE;`
|
|
return gPaletteFade.active ? PALETTE_FADE_STATUS_ACTIVE : PALETTE_FADE_STATUS_DONE;
|
|
if (gPaletteFade.y - gPaletteFade.deltaY < 0)
|
|
gPaletteFade.y = 0;
|
|
else
|
|
gPaletteFade.y -= gPaletteFade.deltaY;
|
|
if (gPaletteFade.y == 0)
|
|
{
|
|
switch (gPaletteFade_submode)
|
|
{
|
|
case FAST_FADE_IN_FROM_WHITE:
|
|
case FAST_FADE_IN_FROM_BLACK:
|
|
CpuCopy32(gPlttBufferUnfaded, gPlttBufferFaded, PLTT_SIZE);
|
|
break;
|
|
case FAST_FADE_OUT_TO_WHITE:
|
|
CpuFill32(0xFFFFFFFF, gPlttBufferFaded, PLTT_SIZE);
|
|
break;
|
|
case FAST_FADE_OUT_TO_BLACK:
|
|
CpuFill32(0x00000000, gPlttBufferFaded, PLTT_SIZE);
|
|
break;
|
|
}
|
|
gPaletteFade.mode = NORMAL_FADE;
|
|
gPaletteFade.softwareFadeFinishing = TRUE;
|
|
}
|
|
// gPaletteFade.active cannot change since the last time it was checked. So this
|
|
// is equivalent to `return PALETTE_FADE_STATUS_ACTIVE;`
|
|
return gPaletteFade.active ? PALETTE_FADE_STATUS_ACTIVE : PALETTE_FADE_STATUS_DONE;
|
|
}
|
|
|
|
void BeginHardwarePaletteFade(u32 blendCnt, u32 delay, u32 y, u32 targetY, u32 shouldResetBlendRegisters)
|
|
{
|
|
gPaletteFade_blendCnt = blendCnt;
|
|
gPaletteFade.delayCounter = delay;
|
|
gPaletteFade_delay = delay;
|
|
gPaletteFade.y = y;
|
|
gPaletteFade.targetY = targetY;
|
|
gPaletteFade.active = TRUE;
|
|
gPaletteFade.mode = HARDWARE_FADE;
|
|
gPaletteFade.shouldResetBlendRegisters = shouldResetBlendRegisters & 1;
|
|
gPaletteFade.hardwareFadeFinishing = FALSE;
|
|
if (y < targetY)
|
|
gPaletteFade.yDec = FALSE;
|
|
else
|
|
gPaletteFade.yDec = TRUE;
|
|
}
|
|
|
|
static u32 UpdateHardwarePaletteFade(void)
|
|
{
|
|
if (!gPaletteFade.active)
|
|
return PALETTE_FADE_STATUS_DONE;
|
|
if (gPaletteFade.delayCounter < gPaletteFade_delay)
|
|
{
|
|
gPaletteFade.delayCounter++;
|
|
return PALETTE_FADE_STATUS_DELAY;
|
|
}
|
|
gPaletteFade.delayCounter = 0;
|
|
if (!gPaletteFade.yDec)
|
|
{
|
|
gPaletteFade.y++;
|
|
if (gPaletteFade.y > gPaletteFade.targetY)
|
|
{
|
|
gPaletteFade.hardwareFadeFinishing++;
|
|
gPaletteFade.y--;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (gPaletteFade.y-- - 1 < gPaletteFade.targetY)
|
|
{
|
|
gPaletteFade.hardwareFadeFinishing++;
|
|
gPaletteFade.y++;
|
|
}
|
|
}
|
|
|
|
if (gPaletteFade.hardwareFadeFinishing)
|
|
{
|
|
if (gPaletteFade.shouldResetBlendRegisters)
|
|
{
|
|
gPaletteFade_blendCnt = 0;
|
|
gPaletteFade.y = 0;
|
|
}
|
|
gPaletteFade.shouldResetBlendRegisters = FALSE;
|
|
}
|
|
// gPaletteFade.active cannot change since the last time it was checked. So this
|
|
// is equivalent to `return PALETTE_FADE_STATUS_ACTIVE;`
|
|
return gPaletteFade.active ? PALETTE_FADE_STATUS_ACTIVE : PALETTE_FADE_STATUS_DONE;
|
|
}
|
|
|
|
static void UpdateBlendRegisters(void)
|
|
{
|
|
SetGpuReg(REG_OFFSET_BLDCNT, (u16)gPaletteFade_blendCnt);
|
|
SetGpuReg(REG_OFFSET_BLDY, gPaletteFade.y);
|
|
if (gPaletteFade.hardwareFadeFinishing)
|
|
{
|
|
gPaletteFade.hardwareFadeFinishing = FALSE;
|
|
gPaletteFade.mode = 0;
|
|
gPaletteFade_blendCnt = 0;
|
|
gPaletteFade.y = 0;
|
|
gPaletteFade.active = FALSE;
|
|
}
|
|
}
|
|
|
|
static bool32 IsSoftwarePaletteFadeFinishing(void)
|
|
{
|
|
if (gPaletteFade.softwareFadeFinishing)
|
|
{
|
|
if (gPaletteFade.softwareFadeFinishingCounter == 4)
|
|
{
|
|
gPaletteFade.active = FALSE;
|
|
gPaletteFade.softwareFadeFinishing = FALSE;
|
|
gPaletteFade.softwareFadeFinishingCounter = 0;
|
|
}
|
|
else
|
|
{
|
|
gPaletteFade.softwareFadeFinishingCounter++;
|
|
}
|
|
return TRUE;
|
|
}
|
|
else
|
|
{
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
// optimized based on lucktyphlosion's BlendPalettesFine
|
|
void BlendPalettesFine(u32 palettes, u16 *src, u16 *dst, u32 coeff, u32 color)
|
|
{
|
|
s32 newR, newG, newB;
|
|
|
|
if (!palettes)
|
|
return;
|
|
|
|
coeff *= 2;
|
|
newR = (color << 27) >> 27;
|
|
newG = (color << 22) >> 27;
|
|
newB = (color << 17) >> 27;
|
|
|
|
do
|
|
{
|
|
if (palettes & 1)
|
|
{
|
|
u16 *srcEnd = src + 16;
|
|
while (src != srcEnd) // Transparency is blended (for backdrop reasons)
|
|
{
|
|
u32 srcColor = *src;
|
|
s32 r = (srcColor << 27) >> 27;
|
|
s32 g = (srcColor << 22) >> 27;
|
|
s32 b = (srcColor << 16) >> 26;
|
|
|
|
*dst++ = ((r + (((newR - r) * (s32)coeff) >> 5)) << 0)
|
|
| ((g + (((newG - g) * (s32)coeff) >> 5)) << 5)
|
|
| ((b + (((newB - (b & 31)) * (s32)coeff) >> 5)) << 10);
|
|
src++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
src += 16;
|
|
dst += 16;
|
|
}
|
|
palettes >>= 1;
|
|
} while (palettes);
|
|
}
|
|
|
|
void BlendPalettes(u32 selectedPalettes, u8 coeff, u32 color)
|
|
{
|
|
u16 paletteOffset;
|
|
|
|
for (paletteOffset = 0; selectedPalettes; paletteOffset += 16)
|
|
{
|
|
if (selectedPalettes & 1)
|
|
BlendPalette(paletteOffset, 16, coeff, color);
|
|
selectedPalettes >>= 1;
|
|
}
|
|
}
|
|
|
|
#define DEFAULT_LIGHT_COLOR 0x3f9f
|
|
|
|
// Like BlendPalette, but ignores blendColor if the transparency high bit is set
|
|
// Optimization help by lucktyphlosion
|
|
void TimeBlendPalette(u16 palOffset, u32 coeff, u32 blendColor)
|
|
{
|
|
s32 newR, newG, newB, defR, defG, defB;
|
|
u16 * src = gPlttBufferUnfaded + palOffset;
|
|
u16 * dst = gPlttBufferFaded + palOffset;
|
|
u32 defaultBlendColor = DEFAULT_LIGHT_COLOR;
|
|
u16 *srcEnd = src + 16;
|
|
u32 altBlendColor = *dst++ = *src++; // color 0 is copied through unchanged
|
|
|
|
coeff *= 2;
|
|
newR = (blendColor << 27) >> 27;
|
|
newG = (blendColor << 22) >> 27;
|
|
newB = (blendColor << 17) >> 27;
|
|
|
|
if (altBlendColor >> 15) // Transparency high bit set; alt blend color
|
|
{
|
|
defR = (altBlendColor << 27) >> 27;
|
|
defG = (altBlendColor << 22) >> 27;
|
|
defB = (altBlendColor << 17) >> 27;
|
|
}
|
|
else
|
|
{
|
|
defR = (defaultBlendColor << 27) >> 27;
|
|
defG = (defaultBlendColor << 22) >> 27;
|
|
defB = (defaultBlendColor << 17) >> 27;
|
|
altBlendColor = 0;
|
|
}
|
|
while (src != srcEnd)
|
|
{
|
|
u32 srcColor = *src;
|
|
s32 r = (srcColor << 27) >> 27;
|
|
s32 g = (srcColor << 22) >> 27;
|
|
s32 b = (srcColor << 16) >> 26;
|
|
|
|
if (srcColor >> 15)
|
|
{
|
|
*dst = ((r + (((defR - r) * (s32)coeff) >> 5)) << 0)
|
|
| ((g + (((defG - g) * (s32)coeff) >> 5)) << 5)
|
|
| ((b + (((defB - (b & 31)) * (s32)coeff) >> 5)) << 10);
|
|
}
|
|
else // Use provided blend color
|
|
{
|
|
*dst = ((r + (((newR - r) * (s32)coeff) >> 5)) << 0)
|
|
| ((g + (((newG - g) * (s32)coeff) >> 5)) << 5)
|
|
| ((b + (((newB - (b & 31)) * (s32)coeff) >> 5)) << 10);
|
|
}
|
|
src++;
|
|
dst++;
|
|
}
|
|
}
|
|
|
|
// Blends a weighted average of two blend parameters
|
|
// Parameters can be either blended (as in BlendPalettes) or tinted (as in TintPaletteRGB_Copy)
|
|
void TimeMixPalettes(u32 palettes, u16 *src, u16 *dst, struct BlendSettings *blend0, struct BlendSettings *blend1, u16 weight0)
|
|
{
|
|
s32 r0, g0, b0, r1, g1, b1, defR, defG, defB, altR, altG, altB;
|
|
u32 color0, coeff0, color1, coeff1;
|
|
bool8 tint0, tint1;
|
|
u32 defaultColor = DEFAULT_LIGHT_COLOR;
|
|
|
|
if (!palettes)
|
|
return;
|
|
|
|
color0 = blend0->blendColor;
|
|
tint0 = blend0->isTint;
|
|
coeff0 = tint0 ? 8*2 : blend0->coeff*2;
|
|
color1 = blend1->blendColor;
|
|
tint1 = blend1->isTint;
|
|
coeff1 = tint1 ? 8*2 : blend1->coeff*2;
|
|
|
|
if (tint0)
|
|
{
|
|
r0 = (color0 << 24) >> 24;
|
|
g0 = (color0 << 16) >> 24;
|
|
b0 = (color0 << 8) >> 24;
|
|
}
|
|
else
|
|
{
|
|
r0 = (color0 << 27) >> 27;
|
|
g0 = (color0 << 22) >> 27;
|
|
b0 = (color0 << 17) >> 27;
|
|
}
|
|
if (tint1)
|
|
{
|
|
r1 = (color1 << 24) >> 24;
|
|
g1 = (color1 << 16) >> 24;
|
|
b1 = (color1 << 8) >> 24;
|
|
}
|
|
else
|
|
{
|
|
r1 = (color1 << 27) >> 27;
|
|
g1 = (color1 << 22) >> 27;
|
|
b1 = (color1 << 17) >> 27;
|
|
}
|
|
defR = (defaultColor << 27) >> 27;
|
|
defG = (defaultColor << 22) >> 27;
|
|
defB = (defaultColor << 17) >> 27;
|
|
|
|
do
|
|
{
|
|
if (palettes & 1)
|
|
{
|
|
u16 *srcEnd = src + 16;
|
|
u32 altBlendColor = *dst++ = *src++; // color 0 is copied through
|
|
if (altBlendColor >> 15) // Transparency high bit set; alt blend color
|
|
{
|
|
altR = (altBlendColor << 27) >> 27;
|
|
altG = (altBlendColor << 22) >> 27;
|
|
altB = (altBlendColor << 17) >> 27;
|
|
}
|
|
else
|
|
{
|
|
altBlendColor = 0;
|
|
}
|
|
while (src != srcEnd)
|
|
{
|
|
u32 srcColor = *src;
|
|
s32 r = (srcColor << 27) >> 27;
|
|
s32 g = (srcColor << 22) >> 27;
|
|
s32 b = (srcColor << 17) >> 27;
|
|
s32 r2, g2, b2;
|
|
|
|
if (srcColor >> 15)
|
|
{
|
|
if (altBlendColor)
|
|
{
|
|
// Use alternate blend color
|
|
r2 = r + (((altR - r) * (s32)coeff1) >> 5);
|
|
g2 = g + (((altG - g) * (s32)coeff1) >> 5);
|
|
b2 = b + (((altB - b) * (s32)coeff1) >> 5);
|
|
r = r + (((altR - r) * (s32)coeff0) >> 5);
|
|
g = g + (((altG - g) * (s32)coeff0) >> 5);
|
|
b = b + (((altB - b) * (s32)coeff0) >> 5);
|
|
}
|
|
else
|
|
{
|
|
// Use default blend color
|
|
r2 = r + (((defR - r) * (s32)coeff1) >> 5);
|
|
g2 = g + (((defG - g) * (s32)coeff1) >> 5);
|
|
b2 = b + (((defB - b) * (s32)coeff1) >> 5);
|
|
r = r + (((defR - r) * (s32)coeff0) >> 5);
|
|
g = g + (((defG - g) * (s32)coeff0) >> 5);
|
|
b = b + (((defB - b) * (s32)coeff0) >> 5);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// Use provided blend colors
|
|
if (!tint1)
|
|
{
|
|
// blend-based
|
|
r2 = (r + (((r1 - r) * (s32)coeff1) >> 5));
|
|
g2 = (g + (((g1 - g) * (s32)coeff1) >> 5));
|
|
b2 = (b + (((b1 - b) * (s32)coeff1) >> 5));
|
|
}
|
|
else
|
|
{
|
|
// tint-based
|
|
r2 = (u16)((r1 * r)) >> 8;
|
|
g2 = (u16)((g1 * g)) >> 8;
|
|
b2 = (u16)((b1 * b)) >> 8;
|
|
if (r2 > 31)
|
|
r2 = 31;
|
|
if (g2 > 31)
|
|
g2 = 31;
|
|
if (b2 > 31)
|
|
b2 = 31;
|
|
}
|
|
if (!tint0)
|
|
{
|
|
// blend-based
|
|
r = (r + (((r0 - r) * (s32)coeff0) >> 5));
|
|
g = (g + (((g0 - g) * (s32)coeff0) >> 5));
|
|
b = (b + (((b0 - b) * (s32)coeff0) >> 5));
|
|
}
|
|
else
|
|
{
|
|
// tint-based
|
|
r = (u16)((r0 * r)) >> 8;
|
|
g = (u16)((g0 * g)) >> 8;
|
|
b = (u16)((b0 * b)) >> 8;
|
|
if (r > 31)
|
|
r = 31;
|
|
if (g > 31)
|
|
g = 31;
|
|
if (b > 31)
|
|
b = 31;
|
|
}
|
|
}
|
|
r = r2 + (((r - r2) * (s32)weight0) >> 8);
|
|
g = g2 + (((g - g2) * (s32)weight0) >> 8);
|
|
b = b2 + (((b - b2) * (s32)weight0) >> 8);
|
|
*dst++ = RGB2(r, g, b);
|
|
// *dst++ = RGB2(r, g, b) | (srcColor >> 15) << 15;
|
|
src++;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
src += 16;
|
|
dst += 16;
|
|
}
|
|
palettes >>= 1;
|
|
} while (palettes);
|
|
}
|
|
|
|
// Apply weighted average to palettes, preserving high bits of dst throughout
|
|
void AvgPaletteWeighted(u16 *src0, u16 *src1, u16 *dst, u16 weight0)
|
|
{
|
|
u16 *srcEnd = src0 + 16;
|
|
src0++;
|
|
src1++;
|
|
dst++; // leave dst transparency unchanged
|
|
while (src0 != srcEnd)
|
|
{
|
|
u32 src0Color = *src0++;
|
|
s32 r0 = (src0Color << 27) >> 27;
|
|
s32 g0 = (src0Color << 22) >> 27;
|
|
s32 b0 = (src0Color << 17) >> 27;
|
|
u32 src1Color = *src1++;
|
|
s32 r1 = (src1Color << 27) >> 27;
|
|
s32 g1 = (src1Color << 22) >> 27;
|
|
s32 b1 = (src1Color << 17) >> 27;
|
|
|
|
// Average and bitwise-OR
|
|
r0 = r1 + (((r0 - r1) * weight0) >> 8);
|
|
g0 = g1 + (((g0 - g1) * weight0) >> 8);
|
|
b0 = b1 + (((b0 - b1) * weight0) >> 8);
|
|
*dst = (*dst & RGB_ALPHA) | RGB2(r0, g0, b0); // preserve high bit of dst
|
|
dst++;
|
|
}
|
|
}
|
|
|
|
void BlendPalettesUnfaded(u32 selectedPalettes, u8 coeff, u32 color)
|
|
{
|
|
// This copy is done via DMA in both RUBY and EMERALD
|
|
CpuFastCopy(gPlttBufferUnfaded, gPlttBufferFaded, PLTT_SIZE);
|
|
BlendPalettes(selectedPalettes, coeff, color);
|
|
}
|
|
|
|
void TintPalette_GrayScale(u16 *palette, u32 count)
|
|
{
|
|
s32 r, g, b, i;
|
|
u32 gray;
|
|
|
|
for (i = 0; i < count; ++i)
|
|
{
|
|
r = GET_R(*palette);
|
|
g = GET_G(*palette);
|
|
b = GET_B(*palette);
|
|
gray = (r * Q_8_8(0.3) + g * Q_8_8(0.59) + b * Q_8_8(0.1133)) >> 8;
|
|
*palette++ = RGB2(gray, gray, gray);
|
|
}
|
|
}
|
|
|
|
void TintPalette_GrayScale2(u16 *palette, u32 count)
|
|
{
|
|
s32 r, g, b, i;
|
|
u32 gray;
|
|
|
|
for (i = 0; i < count; ++i)
|
|
{
|
|
r = GET_R(*palette);
|
|
g = GET_G(*palette);
|
|
b = GET_B(*palette);
|
|
gray = (r * Q_8_8(0.3) + g * Q_8_8(0.59) + b * Q_8_8(0.1133)) >> 8;
|
|
|
|
if (gray > 31)
|
|
gray = 31;
|
|
gray = sRoundedDownGrayscaleMap[gray];
|
|
*palette++ = RGB2(gray, gray, gray);
|
|
}
|
|
}
|
|
|
|
void TintPalette_SepiaTone(u16 *palette, u32 count)
|
|
{
|
|
s32 r, g, b, i;
|
|
u32 gray;
|
|
|
|
for (i = 0; i < count; ++i)
|
|
{
|
|
r = GET_R(*palette);
|
|
g = GET_G(*palette);
|
|
b = GET_B(*palette);
|
|
gray = (r * Q_8_8(0.3) + g * Q_8_8(0.59) + b * Q_8_8(0.1133)) >> 8;
|
|
r = (u16)((Q_8_8(1.2) * gray)) >> 8;
|
|
g = (u16)((Q_8_8(1.0) * gray)) >> 8;
|
|
b = (u16)((Q_8_8(0.94) * gray)) >> 8;
|
|
if (r > 31)
|
|
r = 31;
|
|
*palette++ = RGB2(r, g, b);
|
|
}
|
|
}
|
|
|
|
void TintPalette_CustomTone(u16 *palette, u32 count, u16 rTone, u16 gTone, u16 bTone)
|
|
{
|
|
s32 r, g, b, i;
|
|
u32 gray;
|
|
|
|
for (i = 0; i < count; ++i)
|
|
{
|
|
r = GET_R(*palette);
|
|
g = GET_G(*palette);
|
|
b = GET_B(*palette);
|
|
gray = (r * Q_8_8(0.3) + g * Q_8_8(0.59) + b * Q_8_8(0.1133)) >> 8;
|
|
r = (u16)((rTone * gray)) >> 8;
|
|
g = (u16)((gTone * gray)) >> 8;
|
|
b = (u16)((bTone * gray)) >> 8;
|
|
if (r > 31)
|
|
r = 31;
|
|
if (g > 31)
|
|
g = 31;
|
|
if (b > 31)
|
|
b = 31;
|
|
*palette++ = RGB2(r, g, b);
|
|
}
|
|
}
|
|
|
|
void CopyPaletteInvertedTint(const u16 *src, u16 *dst, u32 count, u8 tone)
|
|
{
|
|
s32 r, g, b, i;
|
|
u32 gray;
|
|
|
|
if (!tone)
|
|
{
|
|
for (i = 0; i < count; i++)
|
|
*dst++ = *src++;
|
|
}
|
|
else
|
|
{
|
|
for (i = 0; i < count; src++, dst++, i++)
|
|
{
|
|
r = GET_R(*src);
|
|
g = GET_G(*src);
|
|
b = GET_B(*src);
|
|
gray = (r * Q_8_8(0.3) + g * Q_8_8(0.59) + b * Q_8_8(0.1133)) >> 8;
|
|
r += (tone * (gray - r) >> 4);
|
|
g += (tone * (gray - g) >> 4);
|
|
b += (tone * (gray - b) >> 4);
|
|
*dst = RGB2(r, g, b);
|
|
}
|
|
}
|
|
}
|
|
|
|
#define tCoeff data[0]
|
|
#define tCoeffTarget data[1]
|
|
#define tCoeffDelta data[2]
|
|
#define tDelay data[3]
|
|
#define tDelayTimer data[4]
|
|
#define IDX_PALETTES 5 // data[5] and data[6], set/get via Set/GetWordTaskArg
|
|
#define tColor data[7]
|
|
#define tId data[8]
|
|
|
|
// Blend the selected palettes in a series of steps toward or away from the color.
|
|
void BlendPalettesGradually(u32 selectedPalettes, s8 delay, u8 coeff, u8 coeffTarget, u16 color, u8 priority, u8 id)
|
|
{
|
|
u8 taskId;
|
|
|
|
taskId = CreateTask(Task_BlendPalettesGradually, priority);
|
|
gTasks[taskId].tCoeff = coeff;
|
|
gTasks[taskId].tCoeffTarget = coeffTarget;
|
|
if (delay >= 0)
|
|
{
|
|
gTasks[taskId].tDelay = delay;
|
|
gTasks[taskId].tCoeffDelta = 1;
|
|
}
|
|
else
|
|
{
|
|
gTasks[taskId].tDelay = 0;
|
|
gTasks[taskId].tCoeffDelta = -delay + 1;
|
|
}
|
|
if (coeffTarget < coeff)
|
|
gTasks[taskId].tCoeffDelta *= -1;
|
|
SetWordTaskArg(taskId, IDX_PALETTES, selectedPalettes);
|
|
gTasks[taskId].tColor = color;
|
|
gTasks[taskId].tId = id;
|
|
gTasks[taskId].func(taskId);
|
|
}
|
|
|
|
bool32 IsBlendPalettesGraduallyTaskActive(u8 id)
|
|
{
|
|
s32 i;
|
|
|
|
for (i = 0; i < NUM_TASKS; ++i)
|
|
if (gTasks[i].isActive == TRUE
|
|
&& gTasks[i].func == Task_BlendPalettesGradually
|
|
&& gTasks[i].tId == id)
|
|
return TRUE;
|
|
return FALSE;
|
|
}
|
|
|
|
void DestroyBlendPalettesGraduallyTask(void)
|
|
{
|
|
u8 taskId;
|
|
|
|
while (TRUE)
|
|
{
|
|
taskId = FindTaskIdByFunc(Task_BlendPalettesGradually);
|
|
if (taskId == TASK_NONE)
|
|
break;
|
|
DestroyTask(taskId);
|
|
}
|
|
}
|
|
|
|
static void Task_BlendPalettesGradually(u8 taskId)
|
|
{
|
|
u32 palettes;
|
|
s16 *data;
|
|
s16 target;
|
|
|
|
data = gTasks[taskId].data;
|
|
palettes = GetWordTaskArg(taskId, IDX_PALETTES);
|
|
if (++tDelayTimer > tDelay)
|
|
{
|
|
tDelayTimer = 0;
|
|
BlendPalettes(palettes, tCoeff, tColor);
|
|
target = tCoeffTarget;
|
|
if (tCoeff == target)
|
|
{
|
|
DestroyTask(taskId);
|
|
}
|
|
else
|
|
{
|
|
tCoeff += tCoeffDelta;
|
|
if (tCoeffDelta >= 0)
|
|
{
|
|
if (tCoeff < target)
|
|
return;
|
|
}
|
|
else if (tCoeff > target)
|
|
{
|
|
return;
|
|
}
|
|
tCoeff = target;
|
|
}
|
|
}
|
|
}
|