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202179e005
snes9xgx/source/snes9x/snapshot.cpp
bladeoner 6844bb0dd0
Snes9x - Silence NULL pointer subtraction warning. (#1056) 
Use a pointer to address 1 instead.
2023-03-15 10:28:33 -06:00

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/*****************************************************************************\
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
This file is licensed under the Snes9x License.
For further information, consult the LICENSE file in the root directory.
\*****************************************************************************/
#include <assert.h>
#include "snes9x.h"
#include "memmap.h"
#include "dma.h"
#include "apu/apu.h"
#include "fxinst.h"
#include "fxemu.h"
#include "sdd1.h"
#include "srtc.h"
#include "snapshot.h"
#include "controls.h"
#include "movie.h"
#include "display.h"
#include "language.h"
#include "gfx.h"
#ifndef min
#define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
typedef struct
{
int offset;
int offset2;
int size;
int type;
uint16 debuted_in;
uint16 deleted_in;
const char *name;
} FreezeData;
enum
{
INT_V,
uint8_ARRAY_V,
uint16_ARRAY_V,
uint32_ARRAY_V,
uint8_INDIR_ARRAY_V,
uint16_INDIR_ARRAY_V,
uint32_INDIR_ARRAY_V,
POINTER_V
};
#define COUNT(ARRAY) (sizeof(ARRAY) / sizeof(ARRAY[0]))
#define Offset(field, structure) ((int) (((char *) (&(((structure) 1)->field))) - ((char *) 1)))
#define OFFSET(f) Offset(f, STRUCT *)
#define DUMMY(f) Offset(f, struct Obsolete *)
#define DELETED(f) (-1)
#define INT_ENTRY(save_version_introduced, field) \
{ \
OFFSET(field), \
0, \
sizeof(((STRUCT *) NULL)->field), \
INT_V, \
save_version_introduced, \
9999, \
#field \
}
#define ARRAY_ENTRY(save_version_introduced, field, count, elemType) \
{ \
OFFSET(field), \
0, \
count, \
elemType, \
save_version_introduced, \
9999, \
#field \
}
#define POINTER_ENTRY(save_version_introduced, field, relativeToField) \
{ \
OFFSET(field), \
OFFSET(relativeToField), \
4, \
POINTER_V, \
save_version_introduced, \
9999, \
#field \
}
#define OBSOLETE_INT_ENTRY(save_version_introduced, save_version_removed, field) \
{ \
DUMMY(field), \
0, \
sizeof(((struct Obsolete *) NULL)->field), \
INT_V, \
save_version_introduced, \
save_version_removed, \
#field \
}
#define OBSOLETE_ARRAY_ENTRY(save_version_introduced, save_version_removed, field, count, elemType) \
{ \
DUMMY(field), \
0, \
count, \
elemType, \
save_version_introduced, \
save_version_removed, \
#field \
}
#define OBSOLETE_POINTER_ENTRY(save_version_introduced, save_version_removed, field, relativeToField) \
{ \
DUMMY(field), \
DUMMY(relativeToField), \
4, \
POINTER_V, \
save_version_introduced, \
save_version_removed, \
#field \
}
#define DELETED_INT_ENTRY(save_version_introduced, save_version_removed, field, size) \
{ \
DELETED(field), \
0, \
size, \
INT_V, \
save_version_introduced, \
save_version_removed, \
#field \
}
#define DELETED_ARRAY_ENTRY(save_version_introduced, save_version_removed, field, count, elemType) \
{ \
DELETED(field), \
0, \
count, \
elemType, \
save_version_introduced, \
save_version_removed, \
#field \
}
#define DELETED_POINTER_ENTRY(save_version_introduced, save_version_removed, field, relativeToField) \
{ \
DELETED(field), \
DELETED(relativeToField), \
4, \
POINTER_V, \
save_version_introduced, \
save_version_removed, \
#field \
}
struct SDMASnapshot
{
struct SDMA dma[8];
};
struct SnapshotMovieInfo
{
uint32 MovieInputDataSize;
};
struct SnapshotScreenshotInfo
{
uint16 Width;
uint16 Height;
uint8 Interlaced;
uint8 Data[MAX_SNES_WIDTH * MAX_SNES_HEIGHT * 3];
};
static struct Obsolete
{
uint8 CPU_IRQActive;
} Obsolete;
#define STRUCT struct SCPUState
static FreezeData SnapCPU[] =
{
INT_ENTRY(6, Cycles),
INT_ENTRY(6, PrevCycles),
INT_ENTRY(6, V_Counter),
INT_ENTRY(6, Flags),
OBSOLETE_INT_ENTRY(6, 7, CPU_IRQActive),
INT_ENTRY(6, IRQPending),
INT_ENTRY(6, MemSpeed),
INT_ENTRY(6, MemSpeedx2),
INT_ENTRY(6, FastROMSpeed),
INT_ENTRY(6, InDMA),
INT_ENTRY(6, InHDMA),
INT_ENTRY(6, InDMAorHDMA),
INT_ENTRY(6, InWRAMDMAorHDMA),
INT_ENTRY(6, HDMARanInDMA),
INT_ENTRY(6, WhichEvent),
INT_ENTRY(6, NextEvent),
INT_ENTRY(6, WaitingForInterrupt),
DELETED_INT_ENTRY(6, 7, WaitAddress, 4),
DELETED_INT_ENTRY(6, 7, WaitCounter, 4),
DELETED_INT_ENTRY(6, 7, PBPCAtOpcodeStart, 4),
INT_ENTRY(7, NMIPending),
INT_ENTRY(7, IRQLine),
INT_ENTRY(7, IRQTransition),
INT_ENTRY(7, IRQLastState),
INT_ENTRY(7, IRQExternal)
};
#undef STRUCT
#define STRUCT struct SRegisters
static FreezeData SnapRegisters[] =
{
INT_ENTRY(6, PB),
INT_ENTRY(6, DB),
INT_ENTRY(6, P.W),
INT_ENTRY(6, A.W),
INT_ENTRY(6, D.W),
INT_ENTRY(6, S.W),
INT_ENTRY(6, X.W),
INT_ENTRY(6, Y.W),
INT_ENTRY(6, PCw)
};
#undef STRUCT
#define STRUCT struct SPPU
static FreezeData SnapPPU[] =
{
INT_ENTRY(6, VMA.High),
INT_ENTRY(6, VMA.Increment),
INT_ENTRY(6, VMA.Address),
INT_ENTRY(6, VMA.Mask1),
INT_ENTRY(6, VMA.FullGraphicCount),
INT_ENTRY(6, VMA.Shift),
INT_ENTRY(6, WRAM),
#define O(N) \
INT_ENTRY(6, BG[N].SCBase), \
INT_ENTRY(6, BG[N].HOffset), \
INT_ENTRY(6, BG[N].VOffset), \
INT_ENTRY(6, BG[N].BGSize), \
INT_ENTRY(6, BG[N].NameBase), \
INT_ENTRY(6, BG[N].SCSize)
O(0), O(1), O(2), O(3),
#undef O
INT_ENTRY(6, BGMode),
INT_ENTRY(6, BG3Priority),
INT_ENTRY(6, CGFLIP),
INT_ENTRY(6, CGFLIPRead),
INT_ENTRY(6, CGADD),
INT_ENTRY(11, CGSavedByte),
ARRAY_ENTRY(6, CGDATA, 256, uint16_ARRAY_V),
#define O(N) \
INT_ENTRY(6, OBJ[N].HPos), \
INT_ENTRY(6, OBJ[N].VPos), \
INT_ENTRY(6, OBJ[N].HFlip), \
INT_ENTRY(6, OBJ[N].VFlip), \
INT_ENTRY(6, OBJ[N].Name), \
INT_ENTRY(6, OBJ[N].Priority), \
INT_ENTRY(6, OBJ[N].Palette), \
INT_ENTRY(6, OBJ[N].Size)
O( 0), O( 1), O( 2), O( 3), O( 4), O( 5), O( 6), O( 7),
O( 8), O( 9), O( 10), O( 11), O( 12), O( 13), O( 14), O( 15),
O( 16), O( 17), O( 18), O( 19), O( 20), O( 21), O( 22), O( 23),
O( 24), O( 25), O( 26), O( 27), O( 28), O( 29), O( 30), O( 31),
O( 32), O( 33), O( 34), O( 35), O( 36), O( 37), O( 38), O( 39),
O( 40), O( 41), O( 42), O( 43), O( 44), O( 45), O( 46), O( 47),
O( 48), O( 49), O( 50), O( 51), O( 52), O( 53), O( 54), O( 55),
O( 56), O( 57), O( 58), O( 59), O( 60), O( 61), O( 62), O( 63),
O( 64), O( 65), O( 66), O( 67), O( 68), O( 69), O( 70), O( 71),
O( 72), O( 73), O( 74), O( 75), O( 76), O( 77), O( 78), O( 79),
O( 80), O( 81), O( 82), O( 83), O( 84), O( 85), O( 86), O( 87),
O( 88), O( 89), O( 90), O( 91), O( 92), O( 93), O( 94), O( 95),
O( 96), O( 97), O( 98), O( 99), O(100), O(101), O(102), O(103),
O(104), O(105), O(106), O(107), O(108), O(109), O(110), O(111),
O(112), O(113), O(114), O(115), O(116), O(117), O(118), O(119),
O(120), O(121), O(122), O(123), O(124), O(125), O(126), O(127),
#undef O
INT_ENTRY(6, OBJThroughMain),
INT_ENTRY(6, OBJThroughSub),
INT_ENTRY(6, OBJAddition),
INT_ENTRY(6, OBJNameBase),
INT_ENTRY(6, OBJNameSelect),
INT_ENTRY(6, OBJSizeSelect),
INT_ENTRY(6, OAMAddr),
INT_ENTRY(6, SavedOAMAddr),
INT_ENTRY(6, OAMPriorityRotation),
INT_ENTRY(6, OAMFlip),
INT_ENTRY(6, OAMReadFlip),
INT_ENTRY(6, OAMTileAddress),
INT_ENTRY(6, OAMWriteRegister),
ARRAY_ENTRY(6, OAMData, 512 + 32, uint8_ARRAY_V),
INT_ENTRY(6, FirstSprite),
INT_ENTRY(6, LastSprite),
INT_ENTRY(6, HTimerEnabled),
INT_ENTRY(6, VTimerEnabled),
INT_ENTRY(6, HTimerPosition),
INT_ENTRY(6, VTimerPosition),
INT_ENTRY(6, IRQHBeamPos),
INT_ENTRY(6, IRQVBeamPos),
INT_ENTRY(6, HBeamFlip),
INT_ENTRY(6, VBeamFlip),
INT_ENTRY(6, HBeamPosLatched),
INT_ENTRY(6, VBeamPosLatched),
INT_ENTRY(6, GunHLatch),
INT_ENTRY(6, GunVLatch),
INT_ENTRY(6, HVBeamCounterLatched),
INT_ENTRY(6, Mode7HFlip),
INT_ENTRY(6, Mode7VFlip),
INT_ENTRY(6, Mode7Repeat),
INT_ENTRY(6, MatrixA),
INT_ENTRY(6, MatrixB),
INT_ENTRY(6, MatrixC),
INT_ENTRY(6, MatrixD),
INT_ENTRY(6, CentreX),
INT_ENTRY(6, CentreY),
INT_ENTRY(6, M7HOFS),
INT_ENTRY(6, M7VOFS),
INT_ENTRY(6, Mosaic),
INT_ENTRY(6, MosaicStart),
ARRAY_ENTRY(6, BGMosaic, 4, uint8_ARRAY_V),
INT_ENTRY(6, Window1Left),
INT_ENTRY(6, Window1Right),
INT_ENTRY(6, Window2Left),
INT_ENTRY(6, Window2Right),
INT_ENTRY(6, RecomputeClipWindows),
#define O(N) \
INT_ENTRY(6, ClipCounts[N]), \
INT_ENTRY(6, ClipWindowOverlapLogic[N]), \
INT_ENTRY(6, ClipWindow1Enable[N]), \
INT_ENTRY(6, ClipWindow2Enable[N]), \
INT_ENTRY(6, ClipWindow1Inside[N]), \
INT_ENTRY(6, ClipWindow2Inside[N])
O(0), O(1), O(2), O(3), O(4), O(5),
#undef O
INT_ENTRY(6, ForcedBlanking),
INT_ENTRY(6, FixedColourRed),
INT_ENTRY(6, FixedColourGreen),
INT_ENTRY(6, FixedColourBlue),
INT_ENTRY(6, Brightness),
INT_ENTRY(6, ScreenHeight),
INT_ENTRY(6, Need16x8Mulitply),
INT_ENTRY(6, BGnxOFSbyte),
INT_ENTRY(6, M7byte),
INT_ENTRY(6, HDMA),
INT_ENTRY(6, HDMAEnded),
INT_ENTRY(6, OpenBus1),
INT_ENTRY(6, OpenBus2),
INT_ENTRY(11, VRAMReadBuffer)
};
#undef STRUCT
#define STRUCT struct SDMASnapshot
static FreezeData SnapDMA[] =
{
#define O(N) \
INT_ENTRY(6, dma[N].ReverseTransfer), \
INT_ENTRY(6, dma[N].HDMAIndirectAddressing), \
INT_ENTRY(6, dma[N].UnusedBit43x0), \
INT_ENTRY(6, dma[N].AAddressFixed), \
INT_ENTRY(6, dma[N].AAddressDecrement), \
INT_ENTRY(6, dma[N].TransferMode), \
INT_ENTRY(6, dma[N].BAddress), \
INT_ENTRY(6, dma[N].AAddress), \
INT_ENTRY(6, dma[N].ABank), \
INT_ENTRY(6, dma[N].DMACount_Or_HDMAIndirectAddress), \
INT_ENTRY(6, dma[N].IndirectBank), \
INT_ENTRY(6, dma[N].Address), \
INT_ENTRY(6, dma[N].Repeat), \
INT_ENTRY(6, dma[N].LineCount), \
INT_ENTRY(6, dma[N].UnknownByte), \
INT_ENTRY(6, dma[N].DoTransfer)
O(0), O(1), O(2), O(3), O(4), O(5), O(6), O(7)
#undef O
};
#undef STRUCT
#define STRUCT struct SControlSnapshot
static FreezeData SnapControls[] =
{
INT_ENTRY(6, ver),
ARRAY_ENTRY(6, port1_read_idx, 2, uint8_ARRAY_V),
ARRAY_ENTRY(6, dummy1, 4, uint8_ARRAY_V),
ARRAY_ENTRY(6, port2_read_idx, 2, uint8_ARRAY_V),
ARRAY_ENTRY(6, dummy2, 4, uint8_ARRAY_V),
ARRAY_ENTRY(6, mouse_speed, 2, uint8_ARRAY_V),
INT_ENTRY(6, justifier_select),
ARRAY_ENTRY(6, dummy3, 8, uint8_ARRAY_V),
INT_ENTRY(6, pad_read),
INT_ENTRY(6, pad_read_last),
ARRAY_ENTRY(6, internal, 60, uint8_ARRAY_V),
ARRAY_ENTRY(10, internal_macs, 5, uint8_ARRAY_V)
};
#undef STRUCT
#define STRUCT struct STimings
static FreezeData SnapTimings[] =
{
INT_ENTRY(6, H_Max_Master),
INT_ENTRY(6, H_Max),
INT_ENTRY(6, V_Max_Master),
INT_ENTRY(6, V_Max),
INT_ENTRY(6, HBlankStart),
INT_ENTRY(6, HBlankEnd),
INT_ENTRY(6, HDMAInit),
INT_ENTRY(6, HDMAStart),
INT_ENTRY(6, NMITriggerPos),
INT_ENTRY(6, WRAMRefreshPos),
INT_ENTRY(6, RenderPos),
INT_ENTRY(6, InterlaceField),
INT_ENTRY(6, DMACPUSync),
INT_ENTRY(6, NMIDMADelay),
INT_ENTRY(6, IRQFlagChanging),
INT_ENTRY(6, APUSpeedup),
INT_ENTRY(7, IRQTriggerCycles),
INT_ENTRY(7, APUAllowTimeOverflow),
INT_ENTRY(11, NextIRQTimer)
};
#undef STRUCT
#define STRUCT struct FxRegs_s
static FreezeData SnapFX[] =
{
ARRAY_ENTRY(6, avReg, 16, uint32_ARRAY_V),
INT_ENTRY(6, vColorReg),
INT_ENTRY(6, vPlotOptionReg),
INT_ENTRY(6, vStatusReg),
INT_ENTRY(6, vPrgBankReg),
INT_ENTRY(6, vRomBankReg),
INT_ENTRY(6, vRamBankReg),
INT_ENTRY(6, vCacheBaseReg),
INT_ENTRY(6, vCacheFlags),
INT_ENTRY(6, vLastRamAdr),
POINTER_ENTRY(6, pvDreg, avRegAddr),
POINTER_ENTRY(6, pvSreg, avRegAddr),
INT_ENTRY(6, vRomBuffer),
INT_ENTRY(6, vPipe),
INT_ENTRY(6, vPipeAdr),
INT_ENTRY(6, vSign),
INT_ENTRY(6, vZero),
INT_ENTRY(6, vCarry),
INT_ENTRY(6, vOverflow),
INT_ENTRY(6, vErrorCode),
INT_ENTRY(6, vIllegalAddress),
INT_ENTRY(6, bBreakPoint),
INT_ENTRY(6, vBreakPoint),
INT_ENTRY(6, vStepPoint),
INT_ENTRY(6, nRamBanks),
INT_ENTRY(6, nRomBanks),
INT_ENTRY(6, vMode),
INT_ENTRY(6, vPrevMode),
POINTER_ENTRY(6, pvScreenBase, pvRam),
#define O(N) \
POINTER_ENTRY(6, apvScreen[N], pvRam)
O( 0), O( 1), O( 2), O( 3), O( 4), O( 5), O( 6), O( 7),
O( 8), O( 9), O( 10), O( 11), O( 12), O( 13), O( 14), O( 15),
O( 16), O( 17), O( 18), O( 19), O( 20), O( 21), O( 22), O( 23),
O( 24), O( 25), O( 26), O( 27), O( 28), O( 29), O( 30), O( 31),
#undef O
ARRAY_ENTRY(6, x, 32, uint32_ARRAY_V),
INT_ENTRY(6, vScreenHeight),
INT_ENTRY(6, vScreenRealHeight),
INT_ENTRY(6, vPrevScreenHeight),
INT_ENTRY(6, vScreenSize),
POINTER_ENTRY(6, pvRamBank, apvRamBank),
POINTER_ENTRY(6, pvRomBank, apvRomBank),
POINTER_ENTRY(6, pvPrgBank, apvRomBank),
#define O(N) \
POINTER_ENTRY(6, apvRamBank[N], pvRam)
O(0), O(1), O(2), O(3),
#undef O
INT_ENTRY(6, bCacheActive),
POINTER_ENTRY(6, pvCache, pvRegisters),
ARRAY_ENTRY(6, avCacheBackup, 512, uint8_ARRAY_V),
INT_ENTRY(6, vCounter),
INT_ENTRY(6, vInstCount),
INT_ENTRY(6, vSCBRDirty)
};
#undef STRUCT
#define STRUCT struct SSA1
static FreezeData SnapSA1[] =
{
DELETED_INT_ENTRY(6, 7, CPUExecuting, 1),
INT_ENTRY(6, ShiftedPB),
INT_ENTRY(6, ShiftedDB),
INT_ENTRY(6, Flags),
DELETED_INT_ENTRY(6, 7, IRQActive, 1),
DELETED_INT_ENTRY(6, 7, Waiting, 1),
INT_ENTRY(6, WaitingForInterrupt),
DELETED_INT_ENTRY(6, 7, WaitAddress, 4),
DELETED_INT_ENTRY(6, 7, WaitCounter, 4),
DELETED_INT_ENTRY(6, 7, PBPCAtOpcodeStart, 4),
DELETED_INT_ENTRY(6, 7, Executing, 1),
INT_ENTRY(6, overflow),
INT_ENTRY(6, in_char_dma),
INT_ENTRY(6, op1),
INT_ENTRY(6, op2),
INT_ENTRY(6, arithmetic_op),
INT_ENTRY(6, sum),
INT_ENTRY(6, VirtualBitmapFormat),
INT_ENTRY(6, variable_bit_pos),
INT_ENTRY(7, Cycles),
INT_ENTRY(7, PrevCycles),
INT_ENTRY(7, TimerIRQLastState),
INT_ENTRY(7, HTimerIRQPos),
INT_ENTRY(7, VTimerIRQPos),
INT_ENTRY(7, HCounter),
INT_ENTRY(7, VCounter),
INT_ENTRY(7, PrevHCounter),
INT_ENTRY(7, MemSpeed),
INT_ENTRY(7, MemSpeedx2)
};
#undef STRUCT
#define STRUCT struct SSA1Registers
static FreezeData SnapSA1Registers[] =
{
INT_ENTRY(6, PB),
INT_ENTRY(6, DB),
INT_ENTRY(6, P.W),
INT_ENTRY(6, A.W),
INT_ENTRY(6, D.W),
INT_ENTRY(6, S.W),
INT_ENTRY(6, X.W),
INT_ENTRY(6, Y.W),
INT_ENTRY(6, PCw)
};
#undef STRUCT
#define STRUCT struct SDSP1
static FreezeData SnapDSP1[] =
{
INT_ENTRY(6, waiting4command),
INT_ENTRY(6, first_parameter),
INT_ENTRY(6, command),
INT_ENTRY(6, in_count),
INT_ENTRY(6, in_index),
INT_ENTRY(6, out_count),
INT_ENTRY(6, out_index),
ARRAY_ENTRY(6, parameters, 512, uint8_ARRAY_V),
ARRAY_ENTRY(6, output, 512, uint8_ARRAY_V),
INT_ENTRY(6, CentreX),
INT_ENTRY(6, CentreY),
INT_ENTRY(6, VOffset),
INT_ENTRY(6, VPlane_C),
INT_ENTRY(6, VPlane_E),
INT_ENTRY(6, SinAas),
INT_ENTRY(6, CosAas),
INT_ENTRY(6, SinAzs),
INT_ENTRY(6, CosAzs),
INT_ENTRY(6, SinAZS),
INT_ENTRY(6, CosAZS),
INT_ENTRY(6, SecAZS_C1),
INT_ENTRY(6, SecAZS_E1),
INT_ENTRY(6, SecAZS_C2),
INT_ENTRY(6, SecAZS_E2),
INT_ENTRY(6, Nx),
INT_ENTRY(6, Ny),
INT_ENTRY(6, Nz),
INT_ENTRY(6, Gx),
INT_ENTRY(6, Gy),
INT_ENTRY(6, Gz),
INT_ENTRY(6, C_Les),
INT_ENTRY(6, E_Les),
INT_ENTRY(6, G_Les),
#define O(N) \
ARRAY_ENTRY(6, matrixA[N], 3, uint16_ARRAY_V), \
ARRAY_ENTRY(6, matrixB[N], 3, uint16_ARRAY_V), \
ARRAY_ENTRY(6, matrixC[N], 3, uint16_ARRAY_V)
O(0), O(1), O(2),
#undef O
INT_ENTRY(6, Op00Multiplicand),
INT_ENTRY(6, Op00Multiplier),
INT_ENTRY(6, Op00Result),
INT_ENTRY(6, Op20Multiplicand),
INT_ENTRY(6, Op20Multiplier),
INT_ENTRY(6, Op20Result),
INT_ENTRY(6, Op10Coefficient),
INT_ENTRY(6, Op10Exponent),
INT_ENTRY(6, Op10CoefficientR),
INT_ENTRY(6, Op10ExponentR),
INT_ENTRY(6, Op04Angle),
INT_ENTRY(6, Op04Radius),
INT_ENTRY(6, Op04Sin),
INT_ENTRY(6, Op04Cos),
INT_ENTRY(6, Op0CA),
INT_ENTRY(6, Op0CX1),
INT_ENTRY(6, Op0CY1),
INT_ENTRY(6, Op0CX2),
INT_ENTRY(6, Op0CY2),
INT_ENTRY(6, Op02FX),
INT_ENTRY(6, Op02FY),
INT_ENTRY(6, Op02FZ),
INT_ENTRY(6, Op02LFE),
INT_ENTRY(6, Op02LES),
INT_ENTRY(6, Op02AAS),
INT_ENTRY(6, Op02AZS),
INT_ENTRY(6, Op02VOF),
INT_ENTRY(6, Op02VVA),
INT_ENTRY(6, Op02CX),
INT_ENTRY(6, Op02CY),
INT_ENTRY(6, Op0AVS),
INT_ENTRY(6, Op0AA),
INT_ENTRY(6, Op0AB),
INT_ENTRY(6, Op0AC),
INT_ENTRY(6, Op0AD),
INT_ENTRY(6, Op06X),
INT_ENTRY(6, Op06Y),
INT_ENTRY(6, Op06Z),
INT_ENTRY(6, Op06H),
INT_ENTRY(6, Op06V),
INT_ENTRY(6, Op06M),
INT_ENTRY(6, Op01m),
INT_ENTRY(6, Op01Zr),
INT_ENTRY(6, Op01Xr),
INT_ENTRY(6, Op01Yr),
INT_ENTRY(6, Op11m),
INT_ENTRY(6, Op11Zr),
INT_ENTRY(6, Op11Xr),
INT_ENTRY(6, Op11Yr),
INT_ENTRY(6, Op21m),
INT_ENTRY(6, Op21Zr),
INT_ENTRY(6, Op21Xr),
INT_ENTRY(6, Op21Yr),
INT_ENTRY(6, Op0DX),
INT_ENTRY(6, Op0DY),
INT_ENTRY(6, Op0DZ),
INT_ENTRY(6, Op0DF),
INT_ENTRY(6, Op0DL),
INT_ENTRY(6, Op0DU),
INT_ENTRY(6, Op1DX),
INT_ENTRY(6, Op1DY),
INT_ENTRY(6, Op1DZ),
INT_ENTRY(6, Op1DF),
INT_ENTRY(6, Op1DL),
INT_ENTRY(6, Op1DU),
INT_ENTRY(6, Op2DX),
INT_ENTRY(6, Op2DY),
INT_ENTRY(6, Op2DZ),
INT_ENTRY(6, Op2DF),
INT_ENTRY(6, Op2DL),
INT_ENTRY(6, Op2DU),
INT_ENTRY(6, Op03F),
INT_ENTRY(6, Op03L),
INT_ENTRY(6, Op03U),
INT_ENTRY(6, Op03X),
INT_ENTRY(6, Op03Y),
INT_ENTRY(6, Op03Z),
INT_ENTRY(6, Op13F),
INT_ENTRY(6, Op13L),
INT_ENTRY(6, Op13U),
INT_ENTRY(6, Op13X),
INT_ENTRY(6, Op13Y),
INT_ENTRY(6, Op13Z),
INT_ENTRY(6, Op23F),
INT_ENTRY(6, Op23L),
INT_ENTRY(6, Op23U),
INT_ENTRY(6, Op23X),
INT_ENTRY(6, Op23Y),
INT_ENTRY(6, Op23Z),
INT_ENTRY(6, Op14Zr),
INT_ENTRY(6, Op14Xr),
INT_ENTRY(6, Op14Yr),
INT_ENTRY(6, Op14U),
INT_ENTRY(6, Op14F),
INT_ENTRY(6, Op14L),
INT_ENTRY(6, Op14Zrr),
INT_ENTRY(6, Op14Xrr),
INT_ENTRY(6, Op14Yrr),
INT_ENTRY(6, Op0EH),
INT_ENTRY(6, Op0EV),
INT_ENTRY(6, Op0EX),
INT_ENTRY(6, Op0EY),
INT_ENTRY(6, Op0BX),
INT_ENTRY(6, Op0BY),
INT_ENTRY(6, Op0BZ),
INT_ENTRY(6, Op0BS),
INT_ENTRY(6, Op1BX),
INT_ENTRY(6, Op1BY),
INT_ENTRY(6, Op1BZ),
INT_ENTRY(6, Op1BS),
INT_ENTRY(6, Op2BX),
INT_ENTRY(6, Op2BY),
INT_ENTRY(6, Op2BZ),
INT_ENTRY(6, Op2BS),
INT_ENTRY(6, Op28X),
INT_ENTRY(6, Op28Y),
INT_ENTRY(6, Op28Z),
INT_ENTRY(6, Op28R),
INT_ENTRY(6, Op1CX),
INT_ENTRY(6, Op1CY),
INT_ENTRY(6, Op1CZ),
INT_ENTRY(6, Op1CXBR),
INT_ENTRY(6, Op1CYBR),
INT_ENTRY(6, Op1CZBR),
INT_ENTRY(6, Op1CXAR),
INT_ENTRY(6, Op1CYAR),
INT_ENTRY(6, Op1CZAR),
INT_ENTRY(6, Op1CX1),
INT_ENTRY(6, Op1CY1),
INT_ENTRY(6, Op1CZ1),
INT_ENTRY(6, Op1CX2),
INT_ENTRY(6, Op1CY2),
INT_ENTRY(6, Op1CZ2),
INT_ENTRY(6, Op0FRamsize),
INT_ENTRY(6, Op0FPass),
INT_ENTRY(6, Op2FUnknown),
INT_ENTRY(6, Op2FSize),
INT_ENTRY(6, Op08X),
INT_ENTRY(6, Op08Y),
INT_ENTRY(6, Op08Z),
INT_ENTRY(6, Op08Ll),
INT_ENTRY(6, Op08Lh),
INT_ENTRY(6, Op18X),
INT_ENTRY(6, Op18Y),
INT_ENTRY(6, Op18Z),
INT_ENTRY(6, Op18R),
INT_ENTRY(6, Op18D),
INT_ENTRY(6, Op38X),
INT_ENTRY(6, Op38Y),
INT_ENTRY(6, Op38Z),
INT_ENTRY(6, Op38R),
INT_ENTRY(6, Op38D)
};
#undef STRUCT
#define STRUCT struct SDSP2
static FreezeData SnapDSP2[] =
{
INT_ENTRY(6, waiting4command),
INT_ENTRY(6, command),
INT_ENTRY(6, in_count),
INT_ENTRY(6, in_index),
INT_ENTRY(6, out_count),
INT_ENTRY(6, out_index),
ARRAY_ENTRY(6, parameters, 512, uint8_ARRAY_V),
ARRAY_ENTRY(6, output, 512, uint8_ARRAY_V),
INT_ENTRY(6, Op05HasLen),
INT_ENTRY(6, Op05Len),
INT_ENTRY(6, Op05Transparent),
INT_ENTRY(6, Op06HasLen),
INT_ENTRY(6, Op06Len),
INT_ENTRY(6, Op09Word1),
INT_ENTRY(6, Op09Word2),
INT_ENTRY(6, Op0DHasLen),
INT_ENTRY(6, Op0DOutLen),
INT_ENTRY(6, Op0DInLen)
};
#undef STRUCT
#define STRUCT struct SDSP4
static FreezeData SnapDSP4[] =
{
INT_ENTRY(6, waiting4command),
INT_ENTRY(6, half_command),
INT_ENTRY(6, command),
INT_ENTRY(6, in_count),
INT_ENTRY(6, in_index),
INT_ENTRY(6, out_count),
INT_ENTRY(6, out_index),
ARRAY_ENTRY(6, parameters, 512, uint8_ARRAY_V),
ARRAY_ENTRY(6, output, 512, uint8_ARRAY_V),
INT_ENTRY(6, byte),
INT_ENTRY(6, address),
INT_ENTRY(6, Logic),
INT_ENTRY(6, lcv),
INT_ENTRY(6, distance),
INT_ENTRY(6, raster),
INT_ENTRY(6, segments),
INT_ENTRY(6, world_x),
INT_ENTRY(6, world_y),
INT_ENTRY(6, world_dx),
INT_ENTRY(6, world_dy),
INT_ENTRY(6, world_ddx),
INT_ENTRY(6, world_ddy),
INT_ENTRY(6, world_xenv),
INT_ENTRY(6, world_yofs),
INT_ENTRY(6, view_x1),
INT_ENTRY(6, view_y1),
INT_ENTRY(6, view_x2),
INT_ENTRY(6, view_y2),
INT_ENTRY(6, view_dx),
INT_ENTRY(6, view_dy),
INT_ENTRY(6, view_xofs1),
INT_ENTRY(6, view_yofs1),
INT_ENTRY(6, view_xofs2),
INT_ENTRY(6, view_yofs2),
INT_ENTRY(6, view_yofsenv),
INT_ENTRY(6, view_turnoff_x),
INT_ENTRY(6, view_turnoff_dx),
INT_ENTRY(6, viewport_cx),
INT_ENTRY(6, viewport_cy),
INT_ENTRY(6, viewport_left),
INT_ENTRY(6, viewport_right),
INT_ENTRY(6, viewport_top),
INT_ENTRY(6, viewport_bottom),
INT_ENTRY(6, sprite_x),
INT_ENTRY(6, sprite_y),
INT_ENTRY(6, sprite_attr),
INT_ENTRY(6, sprite_size),
INT_ENTRY(6, sprite_clipy),
INT_ENTRY(6, sprite_count),
#define O(N) \
ARRAY_ENTRY(6, poly_clipLf[N], 2, uint16_ARRAY_V), \
ARRAY_ENTRY(6, poly_clipRt[N], 2, uint16_ARRAY_V), \
ARRAY_ENTRY(6, poly_ptr[N], 2, uint16_ARRAY_V), \
ARRAY_ENTRY(6, poly_raster[N], 2, uint16_ARRAY_V), \
ARRAY_ENTRY(6, poly_top[N], 2, uint16_ARRAY_V), \
ARRAY_ENTRY(6, poly_bottom[N], 2, uint16_ARRAY_V), \
ARRAY_ENTRY(6, poly_cx[N], 2, uint16_ARRAY_V)
O(0), O(1),
#undef O
ARRAY_ENTRY(6, poly_start, 2, uint16_ARRAY_V),
ARRAY_ENTRY(6, poly_plane, 2, uint16_ARRAY_V),
ARRAY_ENTRY(6, OAM_attr, 16, uint16_ARRAY_V),
INT_ENTRY(6, OAM_index),
INT_ENTRY(6, OAM_bits),
INT_ENTRY(6, OAM_RowMax),
ARRAY_ENTRY(6, OAM_Row, 32, uint16_ARRAY_V)
};
#undef STRUCT
#define STRUCT struct SST010
static FreezeData SnapST010[] =
{
ARRAY_ENTRY(6, input_params, 16, uint8_ARRAY_V),
ARRAY_ENTRY(6, output_params, 16, uint8_ARRAY_V),
INT_ENTRY(6, op_reg),
INT_ENTRY(6, execute),
INT_ENTRY(6, control_enable)
};
#undef STRUCT
#define STRUCT struct SOBC1
static FreezeData SnapOBC1[] =
{
INT_ENTRY(6, address),
INT_ENTRY(6, basePtr),
INT_ENTRY(6, shift)
};
#undef STRUCT
#define STRUCT struct SSPC7110Snapshot
static FreezeData SnapSPC7110Snap[] =
{
INT_ENTRY(6, r4801),
INT_ENTRY(6, r4802),
INT_ENTRY(6, r4803),
INT_ENTRY(6, r4804),
INT_ENTRY(6, r4805),
INT_ENTRY(6, r4806),
INT_ENTRY(6, r4807),
INT_ENTRY(6, r4808),
INT_ENTRY(6, r4809),
INT_ENTRY(6, r480a),
INT_ENTRY(6, r480b),
INT_ENTRY(6, r480c),
INT_ENTRY(6, r4811),
INT_ENTRY(6, r4812),
INT_ENTRY(6, r4813),
INT_ENTRY(6, r4814),
INT_ENTRY(6, r4815),
INT_ENTRY(6, r4816),
INT_ENTRY(6, r4817),
INT_ENTRY(6, r4818),
INT_ENTRY(6, r481x),
INT_ENTRY(6, r4814_latch),
INT_ENTRY(6, r4815_latch),
INT_ENTRY(6, r4820),
INT_ENTRY(6, r4821),
INT_ENTRY(6, r4822),
INT_ENTRY(6, r4823),
INT_ENTRY(6, r4824),
INT_ENTRY(6, r4825),
INT_ENTRY(6, r4826),
INT_ENTRY(6, r4827),
INT_ENTRY(6, r4828),
INT_ENTRY(6, r4829),
INT_ENTRY(6, r482a),
INT_ENTRY(6, r482b),
INT_ENTRY(6, r482c),
INT_ENTRY(6, r482d),
INT_ENTRY(6, r482e),
INT_ENTRY(6, r482f),
INT_ENTRY(6, r4830),
INT_ENTRY(6, r4831),
INT_ENTRY(6, r4832),
INT_ENTRY(6, r4833),
INT_ENTRY(6, r4834),
INT_ENTRY(6, dx_offset),
INT_ENTRY(6, ex_offset),
INT_ENTRY(6, fx_offset),
INT_ENTRY(6, r4840),
INT_ENTRY(6, r4841),
INT_ENTRY(6, r4842),
INT_ENTRY(6, rtc_state),
INT_ENTRY(6, rtc_mode),
INT_ENTRY(6, rtc_index),
INT_ENTRY(6, decomp_mode),
INT_ENTRY(6, decomp_offset),
ARRAY_ENTRY(6, decomp_buffer, SPC7110_DECOMP_BUFFER_SIZE, uint8_ARRAY_V),
INT_ENTRY(6, decomp_buffer_rdoffset),
INT_ENTRY(6, decomp_buffer_wroffset),
INT_ENTRY(6, decomp_buffer_length),
#define O(N) \
INT_ENTRY(6, context[N].index), \
INT_ENTRY(6, context[N].invert)
O( 0), O( 1), O( 2), O( 3), O( 4), O( 5), O( 6), O( 7),
O( 8), O( 9), O( 10), O( 11), O( 12), O( 13), O( 14), O( 15),
O( 16), O( 17), O( 18), O( 19), O( 20), O( 21), O( 22), O( 23),
O( 24), O( 25), O( 26), O( 27), O( 28), O( 29), O( 30), O( 31)
#undef O
};
#undef STRUCT
#define STRUCT struct SSRTCSnapshot
static FreezeData SnapSRTCSnap[] =
{
INT_ENTRY(6, rtc_mode),
INT_ENTRY(6, rtc_index)
};
#undef STRUCT
#define STRUCT struct SBSX
static FreezeData SnapBSX[] =
{
INT_ENTRY(6, dirty),
INT_ENTRY(6, dirty2),
INT_ENTRY(6, bootup),
INT_ENTRY(6, flash_enable),
INT_ENTRY(6, write_enable),
INT_ENTRY(6, read_enable),
INT_ENTRY(6, flash_command),
INT_ENTRY(6, old_write),
INT_ENTRY(6, new_write),
INT_ENTRY(6, out_index),
ARRAY_ENTRY(6, output, 32, uint8_ARRAY_V),
ARRAY_ENTRY(6, PPU, 32, uint8_ARRAY_V),
ARRAY_ENTRY(6, MMC, 16, uint8_ARRAY_V),
ARRAY_ENTRY(6, prevMMC, 16, uint8_ARRAY_V),
ARRAY_ENTRY(6, test2192, 32, uint8_ARRAY_V)
};
#undef STRUCT
#define STRUCT struct SMSU1
static FreezeData SnapMSU1[] =
{
INT_ENTRY(9, MSU1_STATUS),
INT_ENTRY(9, MSU1_DATA_SEEK),
INT_ENTRY(9, MSU1_DATA_POS),
INT_ENTRY(9, MSU1_TRACK_SEEK),
INT_ENTRY(9, MSU1_CURRENT_TRACK),
INT_ENTRY(9, MSU1_RESUME_TRACK),
INT_ENTRY(9, MSU1_VOLUME),
INT_ENTRY(9, MSU1_CONTROL),
INT_ENTRY(9, MSU1_AUDIO_POS),
INT_ENTRY(9, MSU1_RESUME_POS)
};
#undef STRUCT
#define STRUCT struct SnapshotScreenshotInfo
static FreezeData SnapScreenshot[] =
{
INT_ENTRY(6, Width),
INT_ENTRY(6, Height),
INT_ENTRY(6, Interlaced),
ARRAY_ENTRY(6, Data, MAX_SNES_WIDTH * MAX_SNES_HEIGHT * 3, uint8_ARRAY_V)
};
#undef STRUCT
#define STRUCT struct SnapshotMovieInfo
static FreezeData SnapMovie[] =
{
INT_ENTRY(6, MovieInputDataSize)
};
static int UnfreezeBlock (STREAM, const char *, uint8 *, int);
static int UnfreezeBlockCopy (STREAM, const char *, uint8 **, int);
static int UnfreezeStruct (STREAM, const char *, void *, FreezeData *, int, int);
static int UnfreezeStructCopy (STREAM, const char *, uint8 **, FreezeData *, int, int);
static void UnfreezeStructFromCopy (void *, FreezeData *, int, uint8 *, int);
static void FreezeBlock (STREAM, const char *, uint8 *, int);
static void FreezeStruct (STREAM, const char *, void *, FreezeData *, int);
static bool CheckBlockName(STREAM stream, const char *name, int &len);
static void SkipBlockWithName(STREAM stream, const char *name);
void S9xResetSaveTimer (bool8 dontsave)
{
static time_t t = -1;
if (!Settings.DontSaveOopsSnapshot && !dontsave && t != -1 && time(NULL) - t > 300)
{
const char *filename = S9xGetFilename("oops", SNAPSHOT_DIR);
S9xMessage(S9X_INFO, S9X_FREEZE_FILE_INFO, SAVE_INFO_OOPS);
S9xFreezeGame(filename);
}
t = time(NULL);
}
uint32 S9xFreezeSize()
{
nulStream stream;
S9xFreezeToStream(&stream);
return stream.size();
}
bool8 S9xFreezeGameMem (uint8 *buf, uint32 bufSize)
{
memStream mStream(buf, bufSize);
S9xFreezeToStream(&mStream);
return (TRUE);
}
bool8 S9xFreezeGame (const char *filename)
{
STREAM stream = NULL;
if (S9xOpenSnapshotFile(filename, FALSE, &stream))
{
S9xFreezeToStream(stream);
S9xCloseSnapshotFile(stream);
S9xResetSaveTimer(TRUE);
const char *base = S9xBasename(filename);
if (S9xMovieActive())
sprintf(String, MOVIE_INFO_SNAPSHOT " %s", base);
else
sprintf(String, SAVE_INFO_SNAPSHOT " %s", base);
S9xMessage(S9X_INFO, S9X_FREEZE_FILE_INFO, String);
return (TRUE);
}
return (FALSE);
}
int S9xUnfreezeGameMem (const uint8 *buf, uint32 bufSize)
{
memStream stream(buf, bufSize);
int result = S9xUnfreezeFromStream(&stream);
return result;
}
void S9xMessageFromResult(int result, const char* base)
{
switch(result)
{
case WRONG_FORMAT:
S9xMessage(S9X_ERROR, S9X_WRONG_FORMAT, SAVE_ERR_WRONG_FORMAT);
break;
case WRONG_VERSION:
S9xMessage(S9X_ERROR, S9X_WRONG_VERSION, SAVE_ERR_WRONG_VERSION);
break;
case WRONG_MOVIE_SNAPSHOT:
S9xMessage(S9X_ERROR, S9X_WRONG_MOVIE_SNAPSHOT, MOVIE_ERR_SNAPSHOT_WRONG_MOVIE);
break;
case NOT_A_MOVIE_SNAPSHOT:
S9xMessage(S9X_ERROR, S9X_NOT_A_MOVIE_SNAPSHOT, MOVIE_ERR_SNAPSHOT_NOT_MOVIE);
break;
case SNAPSHOT_INCONSISTENT:
S9xMessage(S9X_ERROR, S9X_SNAPSHOT_INCONSISTENT, MOVIE_ERR_SNAPSHOT_INCONSISTENT);
break;
case FILE_NOT_FOUND:
default:
sprintf(String, SAVE_ERR_ROM_NOT_FOUND, base);
S9xMessage(S9X_ERROR, S9X_ROM_NOT_FOUND, String);
break;
}
}
bool8 S9xUnfreezeGame (const char *filename)
{
STREAM stream = NULL;
char drive[_MAX_DRIVE + 1], dir[_MAX_DIR + 1], def[_MAX_FNAME + 1], ext[_MAX_EXT + 1];
const char *base = S9xBasename(filename);
_splitpath(filename, drive, dir, def, ext);
S9xResetSaveTimer(!strcmp(ext, "oops") || !strcmp(ext, "oop") || !strcmp(ext, ".oops") || !strcmp(ext, ".oop"));
if (S9xOpenSnapshotFile(filename, TRUE, &stream))
{
int result;
result = S9xUnfreezeFromStream(stream);
S9xCloseSnapshotFile(stream);
if (result != SUCCESS)
{
S9xMessageFromResult(result, base);
return (FALSE);
}
if (S9xMovieActive())
{
if (S9xMovieReadOnly())
sprintf(String, MOVIE_INFO_REWIND " %s", base);
else
sprintf(String, MOVIE_INFO_RERECORD " %s", base);
}
else
sprintf(String, SAVE_INFO_LOAD " %s", base);
S9xMessage(S9X_INFO, S9X_FREEZE_FILE_INFO, String);
return (TRUE);
}
sprintf(String, SAVE_ERR_SAVE_NOT_FOUND, base);
S9xMessage(S9X_INFO, S9X_FREEZE_FILE_INFO, String);
return (FALSE);
}
bool8 S9xUnfreezeScreenshot(const char *filename, uint16 **image_buffer, int &width, int &height)
{
STREAM stream = NULL;
const char *base = S9xBasename(filename);
if(S9xOpenSnapshotFile(filename, TRUE, &stream))
{
int result;
result = S9xUnfreezeScreenshotFromStream(stream, image_buffer, width, height);
S9xCloseSnapshotFile(stream);
if(result != SUCCESS)
{
S9xMessageFromResult(result, base);
return (FALSE);
}
return (TRUE);
}
sprintf(String, SAVE_ERR_SAVE_NOT_FOUND, base);
S9xMessage(S9X_INFO, S9X_FREEZE_FILE_INFO, String);
return (FALSE);
}
void S9xFreezeToStream (STREAM stream)
{
char buffer[8192];
uint8 *soundsnapshot = new uint8[SPC_SAVE_STATE_BLOCK_SIZE];
sprintf(buffer, "%s:%04d\n", SNAPSHOT_MAGIC, SNAPSHOT_VERSION);
WRITE_STREAM(buffer, strlen(buffer), stream);
sprintf(buffer, "NAM:%06d:%s%c", (int) strlen(Memory.ROMFilename) + 1, Memory.ROMFilename, 0);
WRITE_STREAM(buffer, strlen(buffer) + 1, stream);
FreezeStruct(stream, "CPU", &CPU, SnapCPU, COUNT(SnapCPU));
FreezeStruct(stream, "REG", &Registers, SnapRegisters, COUNT(SnapRegisters));
FreezeStruct(stream, "PPU", &PPU, SnapPPU, COUNT(SnapPPU));
struct SDMASnapshot dma_snap;
for (int d = 0; d < 8; d++)
dma_snap.dma[d] = DMA[d];
FreezeStruct(stream, "DMA", &dma_snap, SnapDMA, COUNT(SnapDMA));
FreezeBlock (stream, "VRA", Memory.VRAM, 0x10000);
FreezeBlock (stream, "RAM", Memory.RAM, 0x20000);
FreezeBlock (stream, "SRA", Memory.SRAM, 0x80000);
FreezeBlock (stream, "FIL", Memory.FillRAM, 0x8000);
S9xAPUSaveState(soundsnapshot);
FreezeBlock (stream, "SND", soundsnapshot, SPC_SAVE_STATE_BLOCK_SIZE);
struct SControlSnapshot ctl_snap;
S9xControlPreSaveState(&ctl_snap);
FreezeStruct(stream, "CTL", &ctl_snap, SnapControls, COUNT(SnapControls));
FreezeStruct(stream, "TIM", &Timings, SnapTimings, COUNT(SnapTimings));
if (Settings.SuperFX)
{
GSU.avRegAddr = (uint8 *) &GSU.avReg;
FreezeStruct(stream, "SFX", &GSU, SnapFX, COUNT(SnapFX));
}
if (Settings.SA1)
{
S9xSA1PackStatus();
FreezeStruct(stream, "SA1", &SA1, SnapSA1, COUNT(SnapSA1));
FreezeStruct(stream, "SAR", &SA1Registers, SnapSA1Registers, COUNT(SnapSA1Registers));
}
if (Settings.DSP == 1)
FreezeStruct(stream, "DP1", &DSP1, SnapDSP1, COUNT(SnapDSP1));
if (Settings.DSP == 2)
FreezeStruct(stream, "DP2", &DSP2, SnapDSP2, COUNT(SnapDSP2));
if (Settings.DSP == 4)
FreezeStruct(stream, "DP4", &DSP4, SnapDSP4, COUNT(SnapDSP4));
if (Settings.C4)
FreezeBlock (stream, "CX4", Memory.C4RAM, 8192);
if (Settings.SETA == ST_010)
FreezeStruct(stream, "ST0", &ST010, SnapST010, COUNT(SnapST010));
if (Settings.OBC1)
{
FreezeStruct(stream, "OBC", &OBC1, SnapOBC1, COUNT(SnapOBC1));
FreezeBlock (stream, "OBM", Memory.OBC1RAM, 8192);
}
if (Settings.SPC7110)
{
S9xSPC7110PreSaveState();
FreezeStruct(stream, "S71", &s7snap, SnapSPC7110Snap, COUNT(SnapSPC7110Snap));
}
if (Settings.SRTC)
{
S9xSRTCPreSaveState();
FreezeStruct(stream, "SRT", &srtcsnap, SnapSRTCSnap, COUNT(SnapSRTCSnap));
}
if (Settings.SRTC || Settings.SPC7110RTC)
FreezeBlock (stream, "CLK", RTCData.reg, 20);
if (Settings.BS)
FreezeStruct(stream, "BSX", &BSX, SnapBSX, COUNT(SnapBSX));
if (Settings.MSU1)
FreezeStruct(stream, "MSU", &MSU1, SnapMSU1, COUNT(SnapMSU1));
if (Settings.SnapshotScreenshots)
{
SnapshotScreenshotInfo *ssi = new SnapshotScreenshotInfo;
ssi->Width = min(IPPU.RenderedScreenWidth, MAX_SNES_WIDTH);
ssi->Height = min(IPPU.RenderedScreenHeight, MAX_SNES_HEIGHT);
ssi->Interlaced = GFX.DoInterlace;
uint8 *rowpix = ssi->Data;
uint16 *screen = GFX.Screen;
for (int y = 0; y < ssi->Height; y++, screen += GFX.RealPPL)
{
for (int x = 0; x < ssi->Width; x++)
{
uint32 r, g, b;
DECOMPOSE_PIXEL(screen[x], r, g, b);
*(rowpix++) = r;
*(rowpix++) = g;
*(rowpix++) = b;
}
}
memset(rowpix, 0, sizeof(ssi->Data) + ssi->Data - rowpix);
FreezeStruct(stream, "SHO", ssi, SnapScreenshot, COUNT(SnapScreenshot));
delete ssi;
}
if (S9xMovieActive())
{
uint8 *movie_freeze_buf;
uint32 movie_freeze_size;
S9xMovieFreeze(&movie_freeze_buf, &movie_freeze_size);
if (movie_freeze_buf)
{
struct SnapshotMovieInfo mi;
mi.MovieInputDataSize = movie_freeze_size;
FreezeStruct(stream, "MOV", &mi, SnapMovie, COUNT(SnapMovie));
FreezeBlock (stream, "MID", movie_freeze_buf, movie_freeze_size);
delete [] movie_freeze_buf;
}
}
delete [] soundsnapshot;
}
int S9xUnfreezeFromStream (STREAM stream)
{
const bool8 fast = Settings.FastSavestates;
int result = SUCCESS;
int version, len;
char buffer[PATH_MAX + 1];
len = strlen(SNAPSHOT_MAGIC) + 1 + 4 + 1;
if (READ_STREAM(buffer, len, stream) != (unsigned int ) len)
return (WRONG_FORMAT);
if (strncmp(buffer, SNAPSHOT_MAGIC, strlen(SNAPSHOT_MAGIC)) != 0)
return (WRONG_FORMAT);
version = atoi(&buffer[strlen(SNAPSHOT_MAGIC) + 1]);
if (version > SNAPSHOT_VERSION)
return (WRONG_VERSION);
result = UnfreezeBlock(stream, "NAM", (uint8 *) buffer, PATH_MAX);
if (result != SUCCESS)
return (result);
uint8 *local_cpu = NULL;
uint8 *local_registers = NULL;
uint8 *local_ppu = NULL;
uint8 *local_dma = NULL;
uint8 *local_vram = NULL;
uint8 *local_ram = NULL;
uint8 *local_sram = NULL;
uint8 *local_fillram = NULL;
uint8 *local_apu_sound = NULL;
uint8 *local_control_data = NULL;
uint8 *local_timing_data = NULL;
uint8 *local_superfx = NULL;
uint8 *local_sa1 = NULL;
uint8 *local_sa1_registers = NULL;
uint8 *local_dsp1 = NULL;
uint8 *local_dsp2 = NULL;
uint8 *local_dsp4 = NULL;
uint8 *local_cx4_data = NULL;
uint8 *local_st010 = NULL;
uint8 *local_obc1 = NULL;
uint8 *local_obc1_data = NULL;
uint8 *local_spc7110 = NULL;
uint8 *local_srtc = NULL;
uint8 *local_rtc_data = NULL;
uint8 *local_bsx_data = NULL;
uint8 *local_msu1_data = NULL;
uint8 *local_screenshot = NULL;
uint8 *local_movie_data = NULL;
do
{
result = UnfreezeStructCopy(stream, "CPU", &local_cpu, SnapCPU, COUNT(SnapCPU), version);
if (result != SUCCESS)
break;
result = UnfreezeStructCopy(stream, "REG", &local_registers, SnapRegisters, COUNT(SnapRegisters), version);
if (result != SUCCESS)
break;
result = UnfreezeStructCopy(stream, "PPU", &local_ppu, SnapPPU, COUNT(SnapPPU), version);
if (result != SUCCESS)
break;
result = UnfreezeStructCopy(stream, "DMA", &local_dma, SnapDMA, COUNT(SnapDMA), version);
if (result != SUCCESS)
break;
if (fast)
result = UnfreezeBlock(stream, "VRA", Memory.VRAM, 0x10000);
else
result = UnfreezeBlockCopy(stream, "VRA", &local_vram, 0x10000);
if (result != SUCCESS)
break;
if (fast)
result = UnfreezeBlock(stream, "RAM", Memory.RAM, 0x20000);
else
result = UnfreezeBlockCopy(stream, "RAM", &local_ram, 0x20000);
if (result != SUCCESS)
break;
if (fast)
result = UnfreezeBlock(stream, "SRA", Memory.SRAM, 0x80000);
else
result = UnfreezeBlockCopy (stream, "SRA", &local_sram, 0x80000);
if (result != SUCCESS)
break;
if (fast)
result = UnfreezeBlock(stream, "FIL", Memory.FillRAM, 0x8000);
else
result = UnfreezeBlockCopy(stream, "FIL", &local_fillram, 0x8000);
if (result != SUCCESS)
break;
result = UnfreezeBlockCopy (stream, "SND", &local_apu_sound, SPC_SAVE_STATE_BLOCK_SIZE);
if (result != SUCCESS)
break;
result = UnfreezeStructCopy(stream, "CTL", &local_control_data, SnapControls, COUNT(SnapControls), version);
if (result != SUCCESS)
break;
result = UnfreezeStructCopy(stream, "TIM", &local_timing_data, SnapTimings, COUNT(SnapTimings), version);
if (result != SUCCESS)
break;
result = UnfreezeStructCopy(stream, "SFX", &local_superfx, SnapFX, COUNT(SnapFX), version);
if (result != SUCCESS && Settings.SuperFX)
break;
result = UnfreezeStructCopy(stream, "SA1", &local_sa1, SnapSA1, COUNT(SnapSA1), version);
if (result != SUCCESS && Settings.SA1)
break;
result = UnfreezeStructCopy(stream, "SAR", &local_sa1_registers, SnapSA1Registers, COUNT(SnapSA1Registers), version);
if (result != SUCCESS && Settings.SA1)
break;
result = UnfreezeStructCopy(stream, "DP1", &local_dsp1, SnapDSP1, COUNT(SnapDSP1), version);
if (result != SUCCESS && Settings.DSP == 1)
break;
result = UnfreezeStructCopy(stream, "DP2", &local_dsp2, SnapDSP2, COUNT(SnapDSP2), version);
if (result != SUCCESS && Settings.DSP == 2)
break;
result = UnfreezeStructCopy(stream, "DP4", &local_dsp4, SnapDSP4, COUNT(SnapDSP4), version);
if (result != SUCCESS && Settings.DSP == 4)
break;
if (Settings.C4)
{
if (fast)
result = UnfreezeBlock(stream, "CX4", Memory.C4RAM, 8192);
else
result = UnfreezeBlockCopy(stream, "CX4", &local_cx4_data, 8192);
if (result != SUCCESS)
break;
}
else
{
SkipBlockWithName(stream, "CX4");
}
result = UnfreezeStructCopy(stream, "ST0", &local_st010, SnapST010, COUNT(SnapST010), version);
if (result != SUCCESS && Settings.SETA == ST_010)
break;
result = UnfreezeStructCopy(stream, "OBC", &local_obc1, SnapOBC1, COUNT(SnapOBC1), version);
if (result != SUCCESS && Settings.OBC1)
break;
if (Settings.OBC1)
{
if (fast)
result = UnfreezeBlock(stream, "OBM", Memory.OBC1RAM, 8192);
else
result = UnfreezeBlockCopy(stream, "OBM", &local_obc1_data, 8192);
if (result != SUCCESS)
break;
}
else
{
SkipBlockWithName(stream, "OBM");
}
result = UnfreezeStructCopy(stream, "S71", &local_spc7110, SnapSPC7110Snap, COUNT(SnapSPC7110Snap), version);
if (result != SUCCESS && Settings.SPC7110)
break;
result = UnfreezeStructCopy(stream, "SRT", &local_srtc, SnapSRTCSnap, COUNT(SnapSRTCSnap), version);
if (result != SUCCESS && Settings.SRTC)
break;
result = UnfreezeBlockCopy (stream, "CLK", &local_rtc_data, 20);
if (result != SUCCESS && (Settings.SRTC || Settings.SPC7110RTC))
break;
result = UnfreezeStructCopy(stream, "BSX", &local_bsx_data, SnapBSX, COUNT(SnapBSX), version);
if (result != SUCCESS && Settings.BS)
break;
result = UnfreezeStructCopy(stream, "MSU", &local_msu1_data, SnapMSU1, COUNT(SnapMSU1), version);
if (result != SUCCESS && Settings.MSU1)
break;
result = UnfreezeStructCopy(stream, "SHO", &local_screenshot, SnapScreenshot, COUNT(SnapScreenshot), version);
SnapshotMovieInfo mi;
result = UnfreezeStruct(stream, "MOV", &mi, SnapMovie, COUNT(SnapMovie), version);
if (result != SUCCESS)
{
if (S9xMovieActive())
{
result = NOT_A_MOVIE_SNAPSHOT;
break;
}
}
else
{
result = UnfreezeBlockCopy(stream, "MID", &local_movie_data, mi.MovieInputDataSize);
if (result != SUCCESS)
{
if (S9xMovieActive())
{
result = NOT_A_MOVIE_SNAPSHOT;
break;
}
}
if (S9xMovieActive())
{
result = S9xMovieUnfreeze(local_movie_data, mi.MovieInputDataSize);
if (result != SUCCESS)
break;
}
}
result = SUCCESS;
} while (false);
if (result == SUCCESS)
{
uint32 old_flags = CPU.Flags;
uint32 sa1_old_flags = SA1.Flags;
if (fast)
{
S9xResetPPUFast();
}
else
{
//Do not call this if you have written directly to "Memory." arrays
S9xReset();
}
UnfreezeStructFromCopy(&CPU, SnapCPU, COUNT(SnapCPU), local_cpu, version);
UnfreezeStructFromCopy(&Registers, SnapRegisters, COUNT(SnapRegisters), local_registers, version);
UnfreezeStructFromCopy(&PPU, SnapPPU, COUNT(SnapPPU), local_ppu, version);
struct SDMASnapshot dma_snap;
UnfreezeStructFromCopy(&dma_snap, SnapDMA, COUNT(SnapDMA), local_dma, version);
if (local_vram)
memcpy(Memory.VRAM, local_vram, 0x10000);
if (local_ram)
memcpy(Memory.RAM, local_ram, 0x20000);
if (local_sram)
memcpy(Memory.SRAM, local_sram, 0x80000);
if (local_fillram)
memcpy(Memory.FillRAM, local_fillram, 0x8000);
S9xAPULoadState(local_apu_sound);
struct SControlSnapshot ctl_snap;
UnfreezeStructFromCopy(&ctl_snap, SnapControls, COUNT(SnapControls), local_control_data, version);
UnfreezeStructFromCopy(&Timings, SnapTimings, COUNT(SnapTimings), local_timing_data, version);
if (local_superfx)
{
GSU.avRegAddr = (uint8 *) &GSU.avReg;
UnfreezeStructFromCopy(&GSU, SnapFX, COUNT(SnapFX), local_superfx, version);
}
if (local_sa1)
UnfreezeStructFromCopy(&SA1, SnapSA1, COUNT(SnapSA1), local_sa1, version);
if (local_sa1_registers)
UnfreezeStructFromCopy(&SA1Registers, SnapSA1Registers, COUNT(SnapSA1Registers), local_sa1_registers, version);
if (local_dsp1)
UnfreezeStructFromCopy(&DSP1, SnapDSP1, COUNT(SnapDSP1), local_dsp1, version);
if (local_dsp2)
UnfreezeStructFromCopy(&DSP2, SnapDSP2, COUNT(SnapDSP2), local_dsp2, version);
if (local_dsp4)
UnfreezeStructFromCopy(&DSP4, SnapDSP4, COUNT(SnapDSP4), local_dsp4, version);
if (local_cx4_data)
memcpy(Memory.C4RAM, local_cx4_data, 8192);
if (local_st010)
UnfreezeStructFromCopy(&ST010, SnapST010, COUNT(SnapST010), local_st010, version);
if (local_obc1)
UnfreezeStructFromCopy(&OBC1, SnapOBC1, COUNT(SnapOBC1), local_obc1, version);
if (local_obc1_data)
memcpy(Memory.OBC1RAM, local_obc1_data, 8192);
if (local_spc7110)
UnfreezeStructFromCopy(&s7snap, SnapSPC7110Snap, COUNT(SnapSPC7110Snap), local_spc7110, version);
if (local_srtc)
UnfreezeStructFromCopy(&srtcsnap, SnapSRTCSnap, COUNT(SnapSRTCSnap), local_srtc, version);
if (local_rtc_data)
memcpy(RTCData.reg, local_rtc_data, 20);
if (local_bsx_data)
UnfreezeStructFromCopy(&BSX, SnapBSX, COUNT(SnapBSX), local_bsx_data, version);
if (local_msu1_data)
UnfreezeStructFromCopy(&MSU1, SnapMSU1, COUNT(SnapMSU1), local_msu1_data, version);
if (version < SNAPSHOT_VERSION_IRQ)
{
printf("Converting old snapshot version %d to %d\n...", version, SNAPSHOT_VERSION);
CPU.NMIPending = (CPU.Flags & (1 << 7)) ? TRUE : FALSE;
CPU.IRQLine = (CPU.Flags & (1 << 11)) ? TRUE : FALSE;
CPU.IRQTransition = FALSE;
CPU.IRQLastState = FALSE;
CPU.IRQExternal = (Obsolete.CPU_IRQActive & ~(1 << 1)) ? TRUE : FALSE;
switch (CPU.WhichEvent)
{
case 12: case 1: CPU.WhichEvent = 1; break;
case 2: case 3: CPU.WhichEvent = 2; break;
case 4: case 5: CPU.WhichEvent = 3; break;
case 6: case 7: CPU.WhichEvent = 4; break;
case 8: case 9: CPU.WhichEvent = 5; break;
case 10: case 11: CPU.WhichEvent = 6; break;
}
if (local_sa1) // FIXME
{
SA1.Cycles = SA1.PrevCycles = 0;
SA1.TimerIRQLastState = FALSE;
SA1.HTimerIRQPos = Memory.FillRAM[0x2212] | (Memory.FillRAM[0x2213] << 8);
SA1.VTimerIRQPos = Memory.FillRAM[0x2214] | (Memory.FillRAM[0x2215] << 8);
SA1.HCounter = 0;
SA1.VCounter = 0;
SA1.PrevHCounter = 0;
SA1.MemSpeed = ONE_CYCLE;
SA1.MemSpeedx2 = ONE_CYCLE * 2;
}
}
CPU.Flags |= old_flags & (DEBUG_MODE_FLAG | TRACE_FLAG | SINGLE_STEP_FLAG | FRAME_ADVANCE_FLAG);
ICPU.ShiftedPB = Registers.PB << 16;
ICPU.ShiftedDB = Registers.DB << 16;
S9xSetPCBase(Registers.PBPC);
S9xUnpackStatus();
if(version < SNAPSHOT_VERSION_IRQ_2018)
S9xUpdateIRQPositions(false); // calculate the new trigger pos from saved PPU data
S9xFixCycles();
for (int d = 0; d < 8; d++)
DMA[d] = dma_snap.dma[d];
// TODO: these should already be correct since they are stored in the snapshot
CPU.InDMA = CPU.InHDMA = FALSE;
CPU.InDMAorHDMA = CPU.InWRAMDMAorHDMA = FALSE;
CPU.HDMARanInDMA = 0;
S9xFixColourBrightness();
S9xBuildDirectColourMaps();
IPPU.ColorsChanged = TRUE;
IPPU.OBJChanged = TRUE;
IPPU.RenderThisFrame = TRUE;
GFX.InterlaceFrame = Timings.InterlaceField;
GFX.DoInterlace = 0;
S9xGraphicsScreenResize();
if (Settings.FastSavestates == 0)
memset(GFX.Screen,0,GFX.Pitch * MAX_SNES_HEIGHT);
// TODO: this seems to be a relic from 1.43 changes, completely remove if no issues in the future
/*uint8 hdma_byte = Memory.FillRAM[0x420c];
S9xSetCPU(hdma_byte, 0x420c);*/
S9xControlPostLoadState(&ctl_snap);
if (local_superfx)
{
GSU.pfPlot = fx_PlotTable[GSU.vMode];
GSU.pfRpix = fx_PlotTable[GSU.vMode + 5];
}
if (local_sa1 && local_sa1_registers)
{
SA1.Flags |= sa1_old_flags & TRACE_FLAG;
S9xSA1PostLoadState();
}
if (Settings.SDD1)
S9xSDD1PostLoadState();
if (local_spc7110)
S9xSPC7110PostLoadState(version);
if (local_srtc)
S9xSRTCPostLoadState(version);
if (local_bsx_data)
S9xBSXPostLoadState();
if (local_msu1_data)
S9xMSU1PostLoadState();
if (local_movie_data)
{
// restore last displayed pad_read status
extern bool8 pad_read, pad_read_last;
bool8 pad_read_temp = pad_read;
pad_read = pad_read_last;
S9xUpdateFrameCounter(-1);
pad_read = pad_read_temp;
}
if (local_screenshot)
{
SnapshotScreenshotInfo *ssi = new SnapshotScreenshotInfo;
UnfreezeStructFromCopy(ssi, SnapScreenshot, COUNT(SnapScreenshot), local_screenshot, version);
IPPU.RenderedScreenWidth = min(ssi->Width, IMAGE_WIDTH);
IPPU.RenderedScreenHeight = min(ssi->Height, IMAGE_HEIGHT);
const bool8 scaleDownX = IPPU.RenderedScreenWidth < ssi->Width;
const bool8 scaleDownY = IPPU.RenderedScreenHeight < ssi->Height && ssi->Height > SNES_HEIGHT_EXTENDED;
GFX.DoInterlace = Settings.SupportHiRes ? ssi->Interlaced : 0;
uint8 *rowpix = ssi->Data;
uint16 *screen = GFX.Screen;
for (int y = 0; y < IPPU.RenderedScreenHeight; y++, screen += GFX.RealPPL)
{
for (int x = 0; x < IPPU.RenderedScreenWidth; x++)
{
uint32 r, g, b;
r = *(rowpix++);
g = *(rowpix++);
b = *(rowpix++);
if (scaleDownX)
{
r = (r + *(rowpix++)) >> 1;
g = (g + *(rowpix++)) >> 1;
b = (b + *(rowpix++)) >> 1;
if (x + x + 1 >= ssi->Width)
break;
}
screen[x] = BUILD_PIXEL(r, g, b);
}
if (scaleDownY)
{
rowpix += 3 * ssi->Width;
if (y + y + 1 >= ssi->Height)
break;
}
}
// black out what we might have missed
for (uint32 y = IPPU.RenderedScreenHeight; y < (uint32) (IMAGE_HEIGHT); y++)
memset(GFX.Screen + y * GFX.RealPPL, 0, GFX.RealPPL * 2);
delete ssi;
}
}
if (local_cpu) delete [] local_cpu;
if (local_registers) delete [] local_registers;
if (local_ppu) delete [] local_ppu;
if (local_dma) delete [] local_dma;
if (local_vram) delete [] local_vram;
if (local_ram) delete [] local_ram;
if (local_sram) delete [] local_sram;
if (local_fillram) delete [] local_fillram;
if (local_apu_sound) delete [] local_apu_sound;
if (local_control_data) delete [] local_control_data;
if (local_timing_data) delete [] local_timing_data;
if (local_superfx) delete [] local_superfx;
if (local_sa1) delete [] local_sa1;
if (local_sa1_registers) delete [] local_sa1_registers;
if (local_dsp1) delete [] local_dsp1;
if (local_dsp2) delete [] local_dsp2;
if (local_dsp4) delete [] local_dsp4;
if (local_cx4_data) delete [] local_cx4_data;
if (local_st010) delete [] local_st010;
if (local_obc1) delete [] local_obc1;
if (local_obc1_data) delete [] local_obc1_data;
if (local_spc7110) delete [] local_spc7110;
if (local_srtc) delete [] local_srtc;
if (local_rtc_data) delete [] local_rtc_data;
if (local_bsx_data) delete [] local_bsx_data;
if (local_screenshot) delete [] local_screenshot;
if (local_movie_data) delete [] local_movie_data;
return (result);
}
// load screenshot from file, allocating memory for it
int S9xUnfreezeScreenshotFromStream(STREAM stream, uint16 **image_buffer, int &width, int &height)
{
int result = SUCCESS;
int version, len;
char buffer[PATH_MAX + 1];
len = strlen(SNAPSHOT_MAGIC) + 1 + 4 + 1;
if(READ_STREAM(buffer, len, stream) != (unsigned int)len)
return (WRONG_FORMAT);
if(strncmp(buffer, SNAPSHOT_MAGIC, strlen(SNAPSHOT_MAGIC)) != 0)
return (WRONG_FORMAT);
version = atoi(&buffer[strlen(SNAPSHOT_MAGIC) + 1]);
if(version > SNAPSHOT_VERSION)
return (WRONG_VERSION);
result = UnfreezeBlock(stream, "NAM", (uint8 *)buffer, PATH_MAX);
if(result != SUCCESS)
return (result);
uint8 *local_screenshot = NULL;
// skip all blocks until screenshot
SkipBlockWithName(stream, "CPU");
SkipBlockWithName(stream, "REG");
SkipBlockWithName(stream, "PPU");
SkipBlockWithName(stream, "DMA");
SkipBlockWithName(stream, "VRA");
SkipBlockWithName(stream, "RAM");
SkipBlockWithName(stream, "SRA");
SkipBlockWithName(stream, "FIL");
SkipBlockWithName(stream, "SND");
SkipBlockWithName(stream, "CTL");
SkipBlockWithName(stream, "TIM");
SkipBlockWithName(stream, "SFX");
SkipBlockWithName(stream, "SA1");
SkipBlockWithName(stream, "SAR");
SkipBlockWithName(stream, "DP1");
SkipBlockWithName(stream, "DP2");
SkipBlockWithName(stream, "DP4");
SkipBlockWithName(stream, "CX4");
SkipBlockWithName(stream, "ST0");
SkipBlockWithName(stream, "OBC");
SkipBlockWithName(stream, "OBM");
SkipBlockWithName(stream, "S71");
SkipBlockWithName(stream, "SRT");
SkipBlockWithName(stream, "CLK");
SkipBlockWithName(stream, "BSX");
SkipBlockWithName(stream, "MSU");
result = UnfreezeStructCopy(stream, "SHO", &local_screenshot, SnapScreenshot, COUNT(SnapScreenshot), version);
if(result == SUCCESS && local_screenshot)
{
SnapshotScreenshotInfo *ssi = new SnapshotScreenshotInfo;
UnfreezeStructFromCopy(ssi, SnapScreenshot, COUNT(SnapScreenshot), local_screenshot, version);
width = min(ssi->Width, IMAGE_WIDTH);
height = min(ssi->Height, IMAGE_HEIGHT);
*image_buffer = (uint16 *)malloc(width * height * sizeof(uint16));
uint8 *rowpix = ssi->Data;
uint16 *screen = (*image_buffer);
for(int y = 0; y < height; y++, screen += width)
{
for(int x = 0; x < width; x++)
{
uint32 r, g, b;
r = *(rowpix++);
g = *(rowpix++);
b = *(rowpix++);
screen[x] = BUILD_PIXEL(r, g, b);
}
}
delete ssi;
}
if(local_screenshot) delete[] local_screenshot;
return (result);
}
static int FreezeSize (int size, int type)
{
switch (type)
{
case uint32_ARRAY_V:
case uint32_INDIR_ARRAY_V:
return (size * 4);
case uint16_ARRAY_V:
case uint16_INDIR_ARRAY_V:
return (size * 2);
default:
return (size);
}
}
static void FreezeStruct (STREAM stream, const char *name, void *base, FreezeData *fields, int num_fields)
{
int len = 0;
int i, j;
for (i = 0; i < num_fields; i++)
{
if (SNAPSHOT_VERSION < fields[i].debuted_in)
{
fprintf(stderr, "%s[%p]: field has bad debuted_in value %d, > %d.", name, (void *) fields, fields[i].debuted_in, SNAPSHOT_VERSION);
continue;
}
if (SNAPSHOT_VERSION < fields[i].deleted_in)
len += FreezeSize(fields[i].size, fields[i].type);
}
uint8 *block = new uint8[len];
uint8 *ptr = block;
uint8 *addr;
uint16 word;
uint32 dword;
int64 qaword;
int relativeAddr;
for (i = 0; i < num_fields; i++)
{
if (SNAPSHOT_VERSION >= fields[i].deleted_in || SNAPSHOT_VERSION < fields[i].debuted_in)
continue;
addr = (uint8 *) base + fields[i].offset;
// determine real address of indirect-type fields
// (where the structure contains a pointer to an array rather than the array itself)
if (fields[i].type == uint8_INDIR_ARRAY_V || fields[i].type == uint16_INDIR_ARRAY_V || fields[i].type == uint32_INDIR_ARRAY_V)
addr = (uint8 *) (*((pint *) addr));
// convert pointer-type saves from absolute to relative pointers
if (fields[i].type == POINTER_V)
{
uint8 *pointer = (uint8 *) *((pint *) ((uint8 *) base + fields[i].offset));
uint8 *relativeTo = (uint8 *) *((pint *) ((uint8 *) base + fields[i].offset2));
relativeAddr = pointer - relativeTo;
addr = (uint8 *) &relativeAddr;
}
switch (fields[i].type)
{
case INT_V:
case POINTER_V:
switch (fields[i].size)
{
case 1:
*ptr++ = *(addr);
break;
case 2:
word = *((uint16 *) (addr));
*ptr++ = (uint8) (word >> 8);
*ptr++ = (uint8) word;
break;
case 4:
dword = *((uint32 *) (addr));
*ptr++ = (uint8) (dword >> 24);
*ptr++ = (uint8) (dword >> 16);
*ptr++ = (uint8) (dword >> 8);
*ptr++ = (uint8) dword;
break;
case 8:
qaword = *((int64 *) (addr));
*ptr++ = (uint8) (qaword >> 56);
*ptr++ = (uint8) (qaword >> 48);
*ptr++ = (uint8) (qaword >> 40);
*ptr++ = (uint8) (qaword >> 32);
*ptr++ = (uint8) (qaword >> 24);
*ptr++ = (uint8) (qaword >> 16);
*ptr++ = (uint8) (qaword >> 8);
*ptr++ = (uint8) qaword;
break;
}
break;
case uint8_ARRAY_V:
case uint8_INDIR_ARRAY_V:
memmove(ptr, addr, fields[i].size);
ptr += fields[i].size;
break;
case uint16_ARRAY_V:
case uint16_INDIR_ARRAY_V:
for (j = 0; j < fields[i].size; j++)
{
word = *((uint16 *) (addr + j * 2));
*ptr++ = (uint8) (word >> 8);
*ptr++ = (uint8) word;
}
break;
case uint32_ARRAY_V:
case uint32_INDIR_ARRAY_V:
for (j = 0; j < fields[i].size; j++)
{
dword = *((uint32 *) (addr + j * 4));
*ptr++ = (uint8) (dword >> 24);
*ptr++ = (uint8) (dword >> 16);
*ptr++ = (uint8) (dword >> 8);
*ptr++ = (uint8) dword;
}
break;
}
}
FreezeBlock(stream, name, block, len);
delete [] block;
}
static void FreezeBlock (STREAM stream, const char *name, uint8 *block, int size)
{
char buffer[20];
// check if it fits in 6 digits. (letting it go over and using strlen isn't safe)
if (size <= 999999)
sprintf(buffer, "%s:%06d:", name, size);
else
{
// to make it fit, pack it in the bytes instead of as digits
sprintf(buffer, "%s:------:", name);
buffer[6] = (unsigned char) ((unsigned) size >> 24);
buffer[7] = (unsigned char) ((unsigned) size >> 16);
buffer[8] = (unsigned char) ((unsigned) size >> 8);
buffer[9] = (unsigned char) ((unsigned) size >> 0);
}
buffer[11] = 0;
WRITE_STREAM(buffer, 11, stream);
WRITE_STREAM(block, size, stream);
}
static bool CheckBlockName(STREAM stream, const char *name, int &len)
{
char buffer[16];
len = 0;
size_t l = READ_STREAM(buffer, 11, stream);
buffer[l] = 0;
REVERT_STREAM(stream, FIND_STREAM(stream) - l, 0);
if (buffer[4] == '-')
{
len = (((unsigned char)buffer[6]) << 24)
| (((unsigned char)buffer[7]) << 16)
| (((unsigned char)buffer[8]) << 8)
| (((unsigned char)buffer[9]) << 0);
}
else
len = atoi(buffer + 4);
if (l != 11 || strncmp(buffer, name, 3) != 0 || buffer[3] != ':')
{
return false;
}
if (len <= 0)
{
return false;
}
return true;
}
static void SkipBlockWithName(STREAM stream, const char *name)
{
int len;
bool matchesName = CheckBlockName(stream, name, len);
if (matchesName)
{
long rewind = FIND_STREAM(stream);
rewind += len + 11;
REVERT_STREAM(stream, rewind, 0);
}
}
static int UnfreezeBlock (STREAM stream, const char *name, uint8 *block, int size)
{
char buffer[20];
int len = 0, rem = 0;
long rewind = FIND_STREAM(stream);
size_t l = READ_STREAM(buffer, 11, stream);
buffer[l] = 0;
if (l != 11 || strncmp(buffer, name, 3) != 0 || buffer[3] != ':')
{
err:
#ifdef DEBUGGER
fprintf(stdout, "absent: %s(%d); next: '%.11s'\n", name, size, buffer);
#endif
REVERT_STREAM(stream, FIND_STREAM(stream) - l, 0);
return (WRONG_FORMAT);
}
if (buffer[4] == '-')
{
len = (((unsigned char) buffer[6]) << 24)
| (((unsigned char) buffer[7]) << 16)
| (((unsigned char) buffer[8]) << 8)
| (((unsigned char) buffer[9]) << 0);
}
else
len = atoi(buffer + 4);
if (len <= 0)
goto err;
if (len > size)
{
rem = len - size;
len = size;
}
if (!Settings.FastSavestates)
{
memset(block, 0, size);
}
if (READ_STREAM(block, len, stream) != (unsigned int) len)
{
REVERT_STREAM(stream, rewind, 0);
return (WRONG_FORMAT);
}
if (rem)
{
char *junk = new char[rem];
len = READ_STREAM(junk, rem, stream);
delete [] junk;
if (len != rem)
{
REVERT_STREAM(stream, rewind, 0);
return (WRONG_FORMAT);
}
}
return (SUCCESS);
}
static int UnfreezeBlockCopy (STREAM stream, const char *name, uint8 **block, int size)
{
int result;
//check name first to avoid memory allocation
int blockLength;
if (!CheckBlockName(stream, name, blockLength))
{
return 0;
}
*block = new uint8[size];
result = UnfreezeBlock(stream, name, *block, size);
if (result != SUCCESS)
{
delete [] (*block);
*block = NULL;
return (result);
}
return (SUCCESS);
}
static int UnfreezeStruct (STREAM stream, const char *name, void *base, FreezeData *fields, int num_fields, int version)
{
int result;
uint8 *block = NULL;
result = UnfreezeStructCopy(stream, name, &block, fields, num_fields, version);
if (result != SUCCESS)
{
if (block != NULL)
delete [] block;
return (result);
}
UnfreezeStructFromCopy(base, fields, num_fields, block, version);
delete [] block;
return (SUCCESS);
}
static int UnfreezeStructCopy (STREAM stream, const char *name, uint8 **block, FreezeData *fields, int num_fields, int version)
{
int len = 0;
for (int i = 0; i < num_fields; i++)
{
if (version >= fields[i].debuted_in && version < fields[i].deleted_in)
len += FreezeSize(fields[i].size, fields[i].type);
}
return (UnfreezeBlockCopy(stream, name, block, len));
}
static void UnfreezeStructFromCopy (void *sbase, FreezeData *fields, int num_fields, uint8 *block, int version)
{
uint8 *ptr = block;
uint16 word;
uint32 dword;
int64 qaword;
uint8 *addr;
void *base;
int relativeAddr;
int i, j;
for (i = 0; i < num_fields; i++)
{
if (version < fields[i].debuted_in || version >= fields[i].deleted_in)
continue;
base = (SNAPSHOT_VERSION >= fields[i].deleted_in) ? ((void *) &Obsolete) : sbase;
addr = (uint8 *) base + fields[i].offset;
if (fields[i].type == uint8_INDIR_ARRAY_V || fields[i].type == uint16_INDIR_ARRAY_V || fields[i].type == uint32_INDIR_ARRAY_V)
addr = (uint8 *) (*((pint *) addr));
switch (fields[i].type)
{
case INT_V:
case POINTER_V:
switch (fields[i].size)
{
case 1:
if (fields[i].offset < 0)
{
ptr++;
break;
}
*(addr) = *ptr++;
break;
case 2:
if (fields[i].offset < 0)
{
ptr += 2;
break;
}
word = *ptr++ << 8;
word |= *ptr++;
*((uint16 *) (addr)) = word;
break;
case 4:
if (fields[i].offset < 0)
{
ptr += 4;
break;
}
dword = *ptr++ << 24;
dword |= *ptr++ << 16;
dword |= *ptr++ << 8;
dword |= *ptr++;
*((uint32 *) (addr)) = dword;
break;
case 8:
if (fields[i].offset < 0)
{
ptr += 8;
break;
}
qaword = (int64) *ptr++ << 56;
qaword |= (int64) *ptr++ << 48;
qaword |= (int64) *ptr++ << 40;
qaword |= (int64) *ptr++ << 32;
qaword |= (int64) *ptr++ << 24;
qaword |= (int64) *ptr++ << 16;
qaword |= (int64) *ptr++ << 8;
qaword |= (int64) *ptr++;
*((int64 *) (addr)) = qaword;
break;
default:
assert(0);
break;
}
break;
case uint8_ARRAY_V:
case uint8_INDIR_ARRAY_V:
if (fields[i].offset >= 0)
memmove(addr, ptr, fields[i].size);
ptr += fields[i].size;
break;
case uint16_ARRAY_V:
case uint16_INDIR_ARRAY_V:
if (fields[i].offset < 0)
{
ptr += fields[i].size * 2;
break;
}
for (j = 0; j < fields[i].size; j++)
{
word = *ptr++ << 8;
word |= *ptr++;
*((uint16 *) (addr + j * 2)) = word;
}
break;
case uint32_ARRAY_V:
case uint32_INDIR_ARRAY_V:
if (fields[i].offset < 0)
{
ptr += fields[i].size * 4;
break;
}
for (j = 0; j < fields[i].size; j++)
{
dword = *ptr++ << 24;
dword |= *ptr++ << 16;
dword |= *ptr++ << 8;
dword |= *ptr++;
*((uint32 *) (addr + j * 4)) = dword;
}
break;
}
if (fields[i].type == POINTER_V)
{
relativeAddr = (int) *((pint *) ((uint8 *) base + fields[i].offset));
uint8 *relativeTo = (uint8 *) *((pint *) ((uint8 *) base + fields[i].offset2));
*((pint *) (addr)) = (pint) (relativeTo + relativeAddr);
}
}
}
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