diff options
Diffstat (limited to 'src/decompress.c')
| -rw-r--r-- | src/decompress.c | 597 |
1 files changed, 597 insertions, 0 deletions
diff --git a/src/decompress.c b/src/decompress.c new file mode 100644 index 000000000..4a5c7a297 --- /dev/null +++ b/src/decompress.c @@ -0,0 +1,597 @@ +#include "global.h" +#include "decompress.h" +#include "species.h" +#include "text.h" +#include "malloc.h" + +EWRAM_DATA ALIGNED(4) u8 gDecompressionBuffer[0x4000] = {0}; + +extern const struct CompressedSpriteSheet gMonFrontPicTable[]; +extern const struct CompressedSpriteSheet gMonBackPicTable[]; + +extern void DrawSpindaSpots(u16 species, u32 personality, void* dest, bool8 isFrontPic); + +static void DuplicateDeoxysTiles(void *pointer, s32 species); + +void LZDecompressWram(const void *src, void *dest) +{ + LZ77UnCompWram(src, dest); +} + +void LZDecompressVram(const void *src, void *dest) +{ + LZ77UnCompVram(src, dest); +} + +u16 LoadCompressedObjectPic(const struct CompressedSpriteSheet *src) +{ + struct SpriteSheet dest; + + LZ77UnCompWram(src->data, gDecompressionBuffer); + dest.data = gDecompressionBuffer; + dest.size = src->size; + dest.tag = src->tag; + return LoadSpriteSheet(&dest); +} + +void LoadCompressedObjectPicOverrideBuffer(const struct CompressedSpriteSheet *src, void *buffer) +{ + struct SpriteSheet dest; + + LZ77UnCompWram(src->data, buffer); + dest.data = buffer; + dest.size = src->size; + dest.tag = src->tag; + LoadSpriteSheet(&dest); +} + +void LoadCompressedObjectPalette(const struct CompressedSpritePalette *src) +{ + struct SpritePalette dest; + + LZ77UnCompWram(src->data, gDecompressionBuffer); + dest.data = (void*) gDecompressionBuffer; + dest.tag = src->tag; + LoadSpritePalette(&dest); +} + +void LoadCompressedObjectPaletteOverrideBuffer(const struct CompressedSpritePalette *a, void *buffer) +{ + struct SpritePalette dest; + + LZ77UnCompWram(a->data, buffer); + dest.data = buffer; + dest.tag = a->tag; + LoadSpritePalette(&dest); +} + +void DecompressPicFromTable(const struct CompressedSpriteSheet *src, void* buffer, s32 species) +{ + if (species > SPECIES_EGG) + LZ77UnCompWram(gMonFrontPicTable[0].data, buffer); + else + LZ77UnCompWram(src->data, buffer); + DuplicateDeoxysTiles(buffer, species); +} + +void HandleLoadSpecialPokePic(const struct CompressedSpriteSheet *src, void *dest, s32 species, u32 personality) +{ + bool8 isFrontPic; + + if (src == &gMonFrontPicTable[species]) + isFrontPic = TRUE; // frontPic + else + isFrontPic = FALSE; // backPic + + LoadSpecialPokePic_2(src, dest, species, personality, isFrontPic); +} + +void LoadSpecialPokePic(const struct CompressedSpriteSheet *src, void *dest, s32 species, u32 personality, bool8 isFrontPic) +{ + if (species == SPECIES_UNOWN) + { + u16 i = (((personality & 0x3000000) >> 18) | ((personality & 0x30000) >> 12) | ((personality & 0x300) >> 6) | (personality & 3)) % 0x1C; + + // The other Unowns are separate from Unown A. + if (i == 0) + i = SPECIES_UNOWN; + else + i += SPECIES_UNOWN_B - 1; + + if (!isFrontPic) + LZ77UnCompWram(gMonBackPicTable[i].data, dest); + else + LZ77UnCompWram(gMonFrontPicTable[i].data, dest); + } + else if (species > SPECIES_EGG) // is species unknown? draw the ? icon + LZ77UnCompWram(gMonFrontPicTable[0].data, dest); + else + LZ77UnCompWram(src->data, dest); + + DuplicateDeoxysTiles(dest, species); + DrawSpindaSpots(species, personality, dest, isFrontPic); +} + +void Unused_LZDecompressWramIndirect(const void **src, void *dest) +{ + LZ77UnCompWram(*src, dest); +} + +// This one (unused) function is really challenging, won't even try to decompile it. +__attribute__((naked)) +void sub_803471C() +{ + asm(".syntax unified\n\ + push {r4-r7,lr}\n\ + mov r7, r10\n\ + mov r6, r9\n\ + mov r5, r8\n\ + push {r5-r7}\n\ + sub sp, 0x24\n\ + mov r9, r0\n\ + str r1, [sp]\n\ + str r2, [sp, 0x4]\n\ + adds r5, r3, 0\n\ + movs r0, 0x1\n\ + mov r1, r9\n\ + ands r0, r1\n\ + cmp r0, 0\n\ + bne _0803473C\n\ + b _080348D4\n\ +_0803473C:\n\ + asrs r0, r1, 1\n\ + adds r0, 0x4\n\ + lsls r0, 24\n\ + lsrs r0, 24\n\ + str r0, [sp, 0x8]\n\ + movs r0, 0\n\ + ldr r2, [sp]\n\ + cmp r0, r2\n\ + blt _08034750\n\ + b _08034964\n\ +_08034750:\n\ + movs r4, 0x8\n\ + subs r1, r4, r1\n\ + str r1, [sp, 0x10]\n\ +_08034756:\n\ + movs r7, 0\n\ + adds r0, 0x1\n\ + str r0, [sp, 0x14]\n\ + ldr r0, [sp, 0x10]\n\ + cmp r7, r0\n\ + bge _080347D2\n\ + ldr r1, [sp, 0x8]\n\ + lsls r1, 8\n\ + str r1, [sp, 0x18]\n\ + movs r2, 0\n\ + mov r10, r2\n\ + mov r0, r9\n\ + movs r4, 0x8\n\ + subs r0, r4, r0\n\ + str r0, [sp, 0xC]\n\ +_08034774:\n\ + movs r3, 0\n\ + asrs r0, r7, 1\n\ + adds r1, r7, 0\n\ + movs r2, 0x1\n\ + ands r1, r2\n\ + str r1, [sp, 0x20]\n\ + lsls r0, 8\n\ + mov r8, r0\n\ + mov r12, r5\n\ +_08034786:\n\ + lsls r1, r3, 5\n\ + ldr r4, [sp, 0x18]\n\ + adds r0, r5, r4\n\ + adds r0, r1\n\ + mov r1, r8\n\ + adds r2, r0, r1\n\ + mov r1, r12\n\ + add r1, r8\n\ + movs r6, 0xF\n\ +_08034798:\n\ + ldr r4, [sp, 0x20]\n\ + cmp r4, 0\n\ + bne _080347A8\n\ + strb r4, [r1]\n\ + add r4, sp, 0x20\n\ + ldrb r4, [r4]\n\ + strb r4, [r2, 0x10]\n\ + b _080347B6\n\ +_080347A8:\n\ + mov r0, r10\n\ + strb r0, [r1, 0x10]\n\ + movs r4, 0x80\n\ + lsls r4, 1\n\ + adds r4, r2, r4\n\ + str r4, [sp, 0x1C]\n\ + strb r0, [r4]\n\ +_080347B6:\n\ + adds r2, 0x1\n\ + adds r1, 0x1\n\ + subs r6, 0x1\n\ + cmp r6, 0\n\ + bge _08034798\n\ + movs r0, 0x20\n\ + add r12, r0\n\ + adds r3, 0x1\n\ + cmp r3, 0x7\n\ + ble _08034786\n\ + adds r7, 0x1\n\ + ldr r1, [sp, 0xC]\n\ + cmp r7, r1\n\ + blt _08034774\n\ +_080347D2:\n\ + movs r7, 0\n\ + movs r2, 0\n\ +_080347D6:\n\ + movs r6, 0\n\ + adds r4, r7, 0x1\n\ + mov r8, r4\n\ + lsls r4, r7, 5\n\ +_080347DE:\n\ + adds r0, r6, 0x1\n\ + mov r10, r0\n\ + lsls r1, r6, 8\n\ + adds r0, r1, 0\n\ + adds r0, 0xC0\n\ + adds r0, r5, r0\n\ + adds r0, r4\n\ + adds r1, r5, r1\n\ + adds r1, r4\n\ + movs r3, 0x1F\n\ +_080347F2:\n\ + strb r2, [r1]\n\ + strb r2, [r0]\n\ + adds r0, 0x1\n\ + adds r1, 0x1\n\ + subs r3, 0x1\n\ + cmp r3, 0\n\ + bge _080347F2\n\ + mov r6, r10\n\ + cmp r6, 0x7\n\ + ble _080347DE\n\ + mov r7, r8\n\ + cmp r7, 0x1\n\ + ble _080347D6\n\ + mov r1, r9\n\ + cmp r1, 0x5\n\ + bne _08034818\n\ + movs r2, 0x90\n\ + lsls r2, 1\n\ + adds r5, r2\n\ +_08034818:\n\ + movs r7, 0\n\ + cmp r7, r9\n\ + bge _080348AE\n\ +_0803481E:\n\ + movs r3, 0\n\ + adds r7, 0x1\n\ + mov r8, r7\n\ + cmp r3, r9\n\ + bge _0803488E\n\ +_08034828:\n\ + adds r3, 0x1\n\ + mov r10, r3\n\ + ldr r4, [sp, 0x4]\n\ + adds r4, 0x20\n\ + adds r7, r5, 0\n\ + adds r7, 0x20\n\ + movs r0, 0x12\n\ + adds r0, r5\n\ + mov r12, r0\n\ + ldr r2, [sp, 0x4]\n\ + adds r3, r5, 0\n\ + movs r6, 0x3\n\ +_08034840:\n\ + ldrb r0, [r2]\n\ + mov r1, r12\n\ + strb r0, [r1]\n\ + ldrb r0, [r2, 0x1]\n\ + strb r0, [r1, 0x1]\n\ + ldrb r0, [r2, 0x2]\n\ + strb r0, [r1, 0x1E]\n\ + ldrb r0, [r2, 0x3]\n\ + strb r0, [r1, 0x1F]\n\ + movs r0, 0x81\n\ + lsls r0, 1\n\ + adds r1, r3, r0\n\ + ldrb r0, [r2, 0x10]\n\ + strb r0, [r1]\n\ + ldr r0, =0x00000103\n\ + adds r1, r3, r0\n\ + ldrb r0, [r2, 0x11]\n\ + strb r0, [r1]\n\ + movs r0, 0x90\n\ + lsls r0, 1\n\ + adds r1, r3, r0\n\ + ldrb r0, [r2, 0x12]\n\ + strb r0, [r1]\n\ + ldr r0, =0x00000121\n\ + adds r1, r3, r0\n\ + ldrb r0, [r2, 0x13]\n\ + strb r0, [r1]\n\ + movs r1, 0x4\n\ + add r12, r1\n\ + adds r2, 0x4\n\ + adds r3, 0x4\n\ + subs r6, 0x1\n\ + cmp r6, 0\n\ + bge _08034840\n\ + str r4, [sp, 0x4]\n\ + adds r5, r7, 0\n\ + mov r3, r10\n\ + cmp r3, r9\n\ + blt _08034828\n\ +_0803488E:\n\ + mov r2, r9\n\ + cmp r2, 0x7\n\ + bne _080348A0\n\ + adds r5, 0x20\n\ + b _080348A8\n\ + .pool\n\ +_080348A0:\n\ + mov r4, r9\n\ + cmp r4, 0x5\n\ + bne _080348A8\n\ + adds r5, 0x60\n\ +_080348A8:\n\ + mov r7, r8\n\ + cmp r7, r9\n\ + blt _0803481E\n\ +_080348AE:\n\ + mov r0, r9\n\ + cmp r0, 0x7\n\ + bne _080348BC\n\ + movs r1, 0x80\n\ + lsls r1, 1\n\ + adds r5, r1\n\ + b _080348C8\n\ +_080348BC:\n\ + mov r2, r9\n\ + cmp r2, 0x5\n\ + bne _080348C8\n\ + movs r4, 0xF0\n\ + lsls r4, 1\n\ + adds r5, r4\n\ +_080348C8:\n\ + ldr r0, [sp, 0x14]\n\ + ldr r1, [sp]\n\ + cmp r0, r1\n\ + bge _080348D2\n\ + b _08034756\n\ +_080348D2:\n\ + b _08034964\n\ +_080348D4:\n\ + movs r6, 0\n\ + ldr r2, [sp]\n\ + cmp r6, r2\n\ + bge _08034964\n\ +_080348DC:\n\ + adds r6, 0x1\n\ + mov r10, r6\n\ + mov r4, r9\n\ + cmp r4, 0x6\n\ + bne _080348F4\n\ + movs r0, 0\n\ + movs r3, 0xFF\n\ +_080348EA:\n\ + strb r0, [r5]\n\ + adds r5, 0x1\n\ + subs r3, 0x1\n\ + cmp r3, 0\n\ + bge _080348EA\n\ +_080348F4:\n\ + movs r7, 0\n\ + cmp r7, r9\n\ + bge _08034948\n\ +_080348FA:\n\ + adds r7, 0x1\n\ + mov r8, r7\n\ + mov r1, r9\n\ + lsls r0, r1, 5\n\ + cmp r1, 0x6\n\ + bne _08034914\n\ + movs r1, 0\n\ + movs r3, 0x1F\n\ +_0803490A:\n\ + strb r1, [r5]\n\ + adds r5, 0x1\n\ + subs r3, 0x1\n\ + cmp r3, 0\n\ + bge _0803490A\n\ +_08034914:\n\ + adds r1, r0, 0\n\ + cmp r1, 0\n\ + ble _0803492E\n\ + adds r3, r1, 0\n\ +_0803491C:\n\ + ldr r2, [sp, 0x4]\n\ + ldrb r0, [r2]\n\ + strb r0, [r5]\n\ + adds r2, 0x1\n\ + str r2, [sp, 0x4]\n\ + adds r5, 0x1\n\ + subs r3, 0x1\n\ + cmp r3, 0\n\ + bne _0803491C\n\ +_0803492E:\n\ + mov r4, r9\n\ + cmp r4, 0x6\n\ + bne _08034942\n\ + movs r0, 0\n\ + movs r3, 0x1F\n\ +_08034938:\n\ + strb r0, [r5]\n\ + adds r5, 0x1\n\ + subs r3, 0x1\n\ + cmp r3, 0\n\ + bge _08034938\n\ +_08034942:\n\ + mov r7, r8\n\ + cmp r7, r9\n\ + blt _080348FA\n\ +_08034948:\n\ + mov r0, r9\n\ + cmp r0, 0x6\n\ + bne _0803495C\n\ + movs r0, 0\n\ + movs r3, 0xFF\n\ +_08034952:\n\ + strb r0, [r5]\n\ + adds r5, 0x1\n\ + subs r3, 0x1\n\ + cmp r3, 0\n\ + bge _08034952\n\ +_0803495C:\n\ + mov r6, r10\n\ + ldr r1, [sp]\n\ + cmp r6, r1\n\ + blt _080348DC\n\ +_08034964:\n\ + add sp, 0x24\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\ + .syntax divided"); +} + +u32 sub_8034974(void* ptr) +{ + u8* ptr_ = (u8*)(ptr); + return (ptr_[3] << 16) | (ptr_[2] << 8) | (ptr_[1]); +} + +bool8 LoadCompressedObjectPicUsingHeap(struct CompressedSpriteSheet* src) +{ + struct SpriteSheet dest; + void* buffer; + + buffer = AllocZeroed(*((u32*)(&src->data[0])) >> 8); + LZ77UnCompWram(src->data, buffer); + + dest.data = buffer; + dest.size = src->size; + dest.tag = src->tag; + + LoadSpriteSheet(&dest); + Free(buffer); + return FALSE; +} + +bool8 LoadCompressedObjectPaletteUsingHeap(const struct CompressedSpritePalette *src) +{ + struct SpritePalette dest; + void* buffer; + + buffer = AllocZeroed(*((u32*)(&src->data[0])) >> 8); + LZ77UnCompWram(src->data, buffer); + dest.data = buffer; + dest.tag = src->tag; + + LoadSpritePalette(&dest); + Free(buffer); + return FALSE; +} + +void DecompressPicFromTable_2(const struct CompressedSpriteSheet *src, void* buffer, s32 species) // a copy of DecompressPicFromTable +{ + if (species > SPECIES_EGG) + LZ77UnCompWram(gMonFrontPicTable[0].data, buffer); + else + LZ77UnCompWram(src->data, buffer); + DuplicateDeoxysTiles(buffer, species); +} + +void LoadSpecialPokePic_2(const struct CompressedSpriteSheet *src, void *dest, s32 species, u32 personality, bool8 isFrontPic) // a copy of LoadSpecialPokePic +{ + if (species == SPECIES_UNOWN) + { + u16 i = (((personality & 0x3000000) >> 18) | ((personality & 0x30000) >> 12) | ((personality & 0x300) >> 6) | (personality & 3)) % 0x1C; + + // The other Unowns are separate from Unown A. + if (i == 0) + i = SPECIES_UNOWN; + else + i += SPECIES_UNOWN_B - 1; + + if (!isFrontPic) + LZ77UnCompWram(gMonBackPicTable[i].data, dest); + else + LZ77UnCompWram(gMonFrontPicTable[i].data, dest); + } + else if (species > SPECIES_EGG) // is species unknown? draw the ? icon + LZ77UnCompWram(gMonFrontPicTable[0].data, dest); + else + LZ77UnCompWram(src->data, dest); + + DuplicateDeoxysTiles(dest, species); + DrawSpindaSpots(species, personality, dest, isFrontPic); +} + +void HandleLoadSpecialPokePic_2(const struct CompressedSpriteSheet *src, void *dest, s32 species, u32 personality) // a copy of HandleLoadSpecialPokePic +{ + bool8 isFrontPic; + + if (src == &gMonFrontPicTable[species]) + isFrontPic = TRUE; // frontPic + else + isFrontPic = FALSE; // backPic + + LoadSpecialPokePic_2(src, dest, species, personality, isFrontPic); +} + +void DecompressPicFromTable_DontHandleDeoxys(const struct CompressedSpriteSheet *src, void* buffer, s32 species) // a copy of DecompressPicFromTable +{ + if (species > SPECIES_EGG) + LZ77UnCompWram(gMonFrontPicTable[0].data, buffer); + else + LZ77UnCompWram(src->data, buffer); +} + +void HandleLoadSpecialPokePic_DontHandleDeoxys(const struct CompressedSpriteSheet *src, void *dest, s32 species, u32 personality) // a copy of HandleLoadSpecialPokePic +{ + bool8 isFrontPic; + + if (src == &gMonFrontPicTable[species]) + isFrontPic = TRUE; // frontPic + else + isFrontPic = FALSE; // backPic + + LoadSpecialPokePic_DontHandleDeoxys(src, dest, species, personality, isFrontPic); +} + +void LoadSpecialPokePic_DontHandleDeoxys(const struct CompressedSpriteSheet *src, void *dest, s32 species, u32 personality, bool8 isFrontPic) // a copy of LoadSpecialPokePic +{ + if (species == SPECIES_UNOWN) + { + u16 i = (((personality & 0x3000000) >> 18) | ((personality & 0x30000) >> 12) | ((personality & 0x300) >> 6) | (personality & 3)) % 0x1C; + + // The other Unowns are separate from Unown A. + if (i == 0) + i = SPECIES_UNOWN; + else + i += SPECIES_UNOWN_B - 1; + + if (!isFrontPic) + LZ77UnCompWram(gMonBackPicTable[i].data, dest); + else + LZ77UnCompWram(gMonFrontPicTable[i].data, dest); + } + else if (species > SPECIES_EGG) // is species unknown? draw the ? icon + LZ77UnCompWram(gMonFrontPicTable[0].data, dest); + else + LZ77UnCompWram(src->data, dest); + + DrawSpindaSpots(species, personality, dest, isFrontPic); +} + +static void DuplicateDeoxysTiles(void *pointer, s32 species) +{ + if (species == SPECIES_DEOXYS) + CpuCopy32(pointer + 0x800, pointer, 0x800); +} |