void GetPlatformSnapPath (char *path, const char *base)
{
TCHAR tempDir[MAX_PATH + 1];
GetTempPath(MAX_PATH, tempDir);
wsprintf(path, _T("%s\\%s.s9xw"), GUI.PlatformSnapIntoTempDir ?
tempDir : S9xGetDirectory(SNAPSHOT_DIR), S9xBasename(base));
}
static int ReadOrigSnapshot (STREAM snap)
{
char buffer [_MAX_PATH];
char rom_filename [_MAX_PATH];
int result;
int i;
int j;
int version;
int len = strlen (ORIG_SNAPSHOT_MAGIC) + 1 + 4 + 1;
if (READ_STREAM (buffer, len, snap) != len)
return (WRONG_FORMAT);
if (strncmp (buffer, ORIG_SNAPSHOT_MAGIC, strlen (ORIG_SNAPSHOT_MAGIC)) != 0)
return (WRONG_FORMAT);
if ((version = atoi (&buffer [strlen (SNAPSHOT_MAGIC) + 1])) > ORIG_SNAPSHOT_VERSION)
return (WRONG_VERSION);
if ((result = ReadBlock ("NAM:", rom_filename, _MAX_PATH, snap)) != SUCCESS)
return (result);
if ((result = ReadBlock ("HiR:", buffer, 0x41, snap)) != SUCCESS)
return (result);
if (strcasecmp (rom_filename, Memory.ROMFilename) != 0 &&
strcasecmp (S9xBasename (rom_filename), S9xBasename (Memory.ROMFilename)) != 0)
{
S9xMessage (S9X_WARNING, S9X_FREEZE_ROM_NAME,
"Current loaded ROM image doesn't match that required by freeze-game file.");
}
S9xReset ();
S9xSetSoundMute (TRUE);
if ((result = ReadBlock ("CPU:", &OrigCPU, sizeof (OrigCPU), snap)) != SUCCESS)
return (result);
OrigCPU.FastROMSpeed = OrigCPU.FastROMSpeed_old;
Memory.FixROMSpeed ();
if (version == 3)
{
OrigCPU.Cycles = OrigCPU.Cycles_old;
OrigCPU.NextEvent = OrigCPU.NextEvent_old;
OrigCPU.V_Counter = OrigCPU.V_Counter_old;
OrigCPU.MemSpeed = OrigCPU.MemSpeed_old;
OrigCPU.MemSpeedx2 = OrigCPU.MemSpeedx2_old;
OrigCPU.FastROMSpeed = OrigCPU.FastROMSpeed_old;
}
CPU.Flags = OrigCPU.Flags;
CPU.BranchSkip = OrigCPU.BranchSkip;
CPU.NMIActive = OrigCPU.NMIActive;
CPU.IRQActive = OrigCPU.IRQActive;
CPU.WaitingForInterrupt = OrigCPU.WaitingForInterrupt;
CPU.WhichEvent = OrigCPU.WhichEvent;
CPU.Cycles = OrigCPU.Cycles;
CPU.NextEvent = OrigCPU.NextEvent;
CPU.V_Counter = OrigCPU.V_Counter;
CPU.MemSpeed = OrigCPU.MemSpeed;
CPU.MemSpeedx2 = OrigCPU.MemSpeedx2;
CPU.FastROMSpeed = OrigCPU.FastROMSpeed;
if ((result = ReadBlock ("REG:", &OrigRegisters, sizeof (OrigRegisters), snap)) != SUCCESS)
return (result);
Registers = *(struct SRegisters *) &OrigRegisters;
if ((result = ReadBlock ("PPU:", &OrigPPU, sizeof (OrigPPU), snap)) != SUCCESS)
return (result);
if (version == 2)
{
OrigPPU.OBJNameSelect = OrigPPU.OBJNameSelect_old << 13;
OrigPPU.OBJNameBase <<= 1;
OrigPPU.OBJNameSelect <<= 13;
}
PPU.BGMode = OrigPPU.BGMode;
PPU.BG3Priority = OrigPPU.BG3Priority;
PPU.Brightness = OrigPPU.Brightness;
PPU.VMA.High = OrigPPU.VMA.High;
PPU.VMA.Increment = OrigPPU.VMA.Increment;
PPU.VMA.Address = OrigPPU.VMA.Address;
PPU.VMA.Mask1 = OrigPPU.VMA.Mask1;
PPU.VMA.FullGraphicCount = OrigPPU.VMA.FullGraphicCount;
PPU.VMA.Shift = OrigPPU.VMA.Shift;
for (i = 0; i < 4; i++)
{
PPU.BG[i].SCBase = OrigPPU.BG[i].SCBase;
PPU.BG[i].VOffset = OrigPPU.BG[i].VOffset;
PPU.BG[i].HOffset = OrigPPU.BG[i].HOffset;
PPU.BG[i].BGSize = OrigPPU.BG[i].BGSize;
PPU.BG[i].NameBase = OrigPPU.BG[i].NameBase;
PPU.BG[i].SCSize = OrigPPU.BG[i].SCSize;
}
PPU.CGFLIP = OrigPPU.CGFLIP;
for (i = 0; i < 256; i++)
PPU.CGDATA [i] = OrigPPU.CGDATA [i];
PPU.FirstSprite = OrigPPU.FirstSprite;
for (i = 0; i < 128; i++)
{
PPU.OBJ[i].HPos = OrigPPU.OBJ [i].HPos;
PPU.OBJ[i].VPos = OrigPPU.OBJ [i].VPos;
PPU.OBJ[i].Name = OrigPPU.OBJ [i].Name;
PPU.OBJ[i].VFlip = OrigPPU.OBJ [i].VFlip;
PPU.OBJ[i].HFlip = OrigPPU.OBJ [i].HFlip;
PPU.OBJ[i].Priority = OrigPPU.OBJ [i].Priority;
PPU.OBJ[i].Palette = OrigPPU.OBJ [i].Palette;
PPU.OBJ[i].Size = OrigPPU.OBJ [i].Size;
}
PPU.OAMPriorityRotation = OrigPPU.OAMPriorityRotation;
PPU.OAMAddr = OrigPPU.OAMAddr;
PPU.OAMFlip = OrigPPU.OAMFlip;
PPU.OAMTileAddress = OrigPPU.OAMTileAddress;
PPU.IRQVBeamPos = OrigPPU.IRQVBeamPos;
PPU.IRQHBeamPos = OrigPPU.IRQHBeamPos;
PPU.VBeamPosLatched = OrigPPU.VBeamPosLatched;
PPU.HBeamPosLatched = OrigPPU.HBeamPosLatched;
PPU.HBeamFlip = OrigPPU.HBeamFlip;
PPU.VBeamFlip = OrigPPU.VBeamFlip;
PPU.HVBeamCounterLatched = OrigPPU.HVBeamCounterLatched;
PPU.MatrixA = OrigPPU.MatrixA;
PPU.MatrixB = OrigPPU.MatrixB;
PPU.MatrixC = OrigPPU.MatrixC;
PPU.MatrixD = OrigPPU.MatrixD;
PPU.CentreX = OrigPPU.CentreX;
PPU.CentreY = OrigPPU.CentreY;
PPU.Joypad1ButtonReadPos = OrigPPU.Joypad1ButtonReadPos;
PPU.Joypad2ButtonReadPos = OrigPPU.Joypad2ButtonReadPos;
PPU.Joypad3ButtonReadPos = OrigPPU.Joypad3ButtonReadPos;
PPU.CGADD = OrigPPU.CGADD;
PPU.FixedColourRed = OrigPPU.FixedColourRed;
PPU.FixedColourGreen = OrigPPU.FixedColourGreen;
PPU.FixedColourBlue = OrigPPU.FixedColourBlue;
PPU.SavedOAMAddr = OrigPPU.SavedOAMAddr;
PPU.ScreenHeight = OrigPPU.ScreenHeight;
PPU.WRAM = OrigPPU.WRAM;
PPU.ForcedBlanking = OrigPPU.ForcedBlanking;
PPU.OBJNameSelect = OrigPPU.OBJNameSelect;
PPU.OBJSizeSelect = OrigPPU.OBJSizeSelect;
PPU.OBJNameBase = OrigPPU.OBJNameBase;
PPU.OAMReadFlip = OrigPPU.OAMReadFlip;
memmove (PPU.OAMData, OrigPPU.OAMData, sizeof (PPU.OAMData));
PPU.VTimerEnabled = OrigPPU.VTimerEnabled;
PPU.HTimerEnabled = OrigPPU.HTimerEnabled;
PPU.HTimerPosition = OrigPPU.HTimerPosition;
PPU.Mosaic = OrigPPU.Mosaic;
memmove (PPU.BGMosaic, OrigPPU.BGMosaic, sizeof (PPU.BGMosaic));
PPU.Mode7HFlip = OrigPPU.Mode7HFlip;
PPU.Mode7VFlip = OrigPPU.Mode7VFlip;
PPU.Mode7Repeat = OrigPPU.Mode7Repeat;
PPU.Window1Left = OrigPPU.Window1Left;
PPU.Window1Right = OrigPPU.Window1Right;
PPU.Window2Left = OrigPPU.Window2Left;
PPU.Window2Right = OrigPPU.Window2Right;
for (i = 0; i < 6; i++)
{
PPU.ClipWindowOverlapLogic [i] = OrigPPU.ClipWindowOverlapLogic [i];
PPU.ClipWindow1Enable [i] = OrigPPU.ClipWindow1Enable [i];
PPU.ClipWindow2Enable [i] = OrigPPU.ClipWindow2Enable [i];
PPU.ClipWindow1Inside [i] = OrigPPU.ClipWindow1Inside [i];
PPU.ClipWindow2Inside [i] = OrigPPU.ClipWindow2Inside [i];
}
PPU.CGFLIPRead = OrigPPU.CGFLIPRead;
PPU.Need16x8Mulitply = OrigPPU.Need16x8Mulitply;
IPPU.ColorsChanged = TRUE;
IPPU.OBJChanged = TRUE;
S9xFixColourBrightness ();
IPPU.RenderThisFrame = FALSE;
if ((result = ReadBlock ("DMA:", OrigDMA, sizeof (OrigDMA), snap)) != SUCCESS)
return (result);
for (i = 0; i < 8; i++)
{
DMA[i].TransferDirection = OrigDMA[i].TransferDirection;
DMA[i].AAddressFixed = OrigDMA[i].AAddressFixed;
DMA[i].AAddressDecrement = OrigDMA[i].AAddressDecrement;
DMA[i].TransferMode = OrigDMA[i].TransferMode;
DMA[i].ABank = OrigDMA[i].ABank;
DMA[i].AAddress = OrigDMA[i].AAddress;
DMA[i].Address = OrigDMA[i].Address;
DMA[i].BAddress = OrigDMA[i].BAddress;
DMA[i].TransferBytes = OrigDMA[i].TransferBytes;
DMA[i].HDMAIndirectAddressing = OrigDMA[i].HDMAIndirectAddressing;
DMA[i].IndirectAddress = OrigDMA[i].IndirectAddress;
DMA[i].IndirectBank = OrigDMA[i].IndirectBank;
DMA[i].Repeat = OrigDMA[i].Repeat;
DMA[i].LineCount = OrigDMA[i].LineCount;
DMA[i].FirstLine = OrigDMA[i].FirstLine;
}
if ((result = ReadBlock ("VRA:", Memory.VRAM, 0x10000, snap)) != SUCCESS)
return (result);
if ((result = ReadBlock ("RAM:", Memory.RAM, 0x20000, snap)) != SUCCESS)
return (result);
if ((result = ReadBlock ("SRA:", Memory.SRAM, 0x10000, snap)) != SUCCESS)
return (result);
if ((result = ReadBlock ("FIL:", Memory.FillRAM, 0x8000, snap)) != SUCCESS)
return (result);
if (ReadBlock ("APU:", &OrigAPU, sizeof (OrigAPU), snap) == SUCCESS)
{
APU = *(struct SAPU *) &OrigAPU;
if ((result = ReadBlock ("ARE:", &OrigAPURegisters,
sizeof (OrigAPURegisters), snap)) != SUCCESS)
return (result);
APURegisters = *(struct SAPURegisters *) &OrigAPURegisters;
if ((result = ReadBlock ("ARA:", IAPU.RAM, 0x10000, snap)) != SUCCESS)
return (result);
if ((result = ReadBlock ("SOU:", &OrigSoundData,
sizeof (SOrigSoundData), snap)) != SUCCESS)
return (result);
SoundData.master_volume_left = OrigSoundData.master_volume_left;
SoundData.master_volume_right = OrigSoundData.master_volume_right;
SoundData.echo_volume_left = OrigSoundData.echo_volume_left;
SoundData.echo_volume_right = OrigSoundData.echo_volume_right;
SoundData.echo_enable = OrigSoundData.echo_enable;
SoundData.echo_feedback = OrigSoundData.echo_feedback;
SoundData.echo_ptr = OrigSoundData.echo_ptr;
SoundData.echo_buffer_size = OrigSoundData.echo_buffer_size;
SoundData.echo_write_enabled = OrigSoundData.echo_write_enabled;
SoundData.echo_channel_enable = OrigSoundData.echo_channel_enable;
SoundData.pitch_mod = OrigSoundData.pitch_mod;
for (i = 0; i < 3; i++)
SoundData.dummy [i] = OrigSoundData.dummy [i];
for (i = 0; i < NUM_CHANNELS; i++)
{
SoundData.channels [i].state = OrigSoundData.channels [i].state;
SoundData.channels [i].type = OrigSoundData.channels [i].type;
SoundData.channels [i].volume_left = OrigSoundData.channels [i].volume_left;
SoundData.channels [i].volume_right = OrigSoundData.channels [i].volume_right;
SoundData.channels [i].hertz = OrigSoundData.channels [i].frequency;
SoundData.channels [i].count = OrigSoundData.channels [i].count;
SoundData.channels [i].loop = OrigSoundData.channels [i].loop;
SoundData.channels [i].envx = OrigSoundData.channels [i].envx;
SoundData.channels [i].left_vol_level = OrigSoundData.channels [i].left_vol_level;
SoundData.channels [i].right_vol_level = OrigSoundData.channels [i].right_vol_level;
SoundData.channels [i].envx_target = OrigSoundData.channels [i].envx_target;
SoundData.channels [i].env_error = OrigSoundData.channels [i].env_error;
SoundData.channels [i].erate = OrigSoundData.channels [i].erate;
SoundData.channels [i].direction = OrigSoundData.channels [i].direction;
SoundData.channels [i].attack_rate = OrigSoundData.channels [i].attack_rate;
SoundData.channels [i].decay_rate = OrigSoundData.channels [i].decay_rate;
SoundData.channels [i].sustain_rate = OrigSoundData.channels [i].sustain_rate;
SoundData.channels [i].release_rate = OrigSoundData.channels [i].release_rate;
SoundData.channels [i].sustain_level = OrigSoundData.channels [i].sustain_level;
SoundData.channels [i].sample = OrigSoundData.channels [i].sample;
for (j = 0; j < 16; j++)
SoundData.channels [i].decoded [j] = OrigSoundData.channels [i].decoded [j];
for (j = 0; j < 2; j++)
SoundData.channels [i].previous [j] = OrigSoundData.channels [i].previous [j];
SoundData.channels [i].sample_number = OrigSoundData.channels [i].sample_number;
SoundData.channels [i].last_block = OrigSoundData.channels [i].last_block;
SoundData.channels [i].needs_decode = OrigSoundData.channels [i].needs_decode;
SoundData.channels [i].block_pointer = OrigSoundData.channels [i].block_pointer;
SoundData.channels [i].sample_pointer = OrigSoundData.channels [i].sample_pointer;
SoundData.channels [i].mode = OrigSoundData.channels [i].mode;
}
S9xSetSoundMute (FALSE);
IAPU.PC = IAPU.RAM + APURegisters.PC;
S9xAPUUnpackStatus ();
if (APUCheckDirectPage ())
IAPU.DirectPage = IAPU.RAM + 0x100;
else
IAPU.DirectPage = IAPU.RAM;
Settings.APUEnabled = TRUE;
IAPU.APUExecuting = TRUE;
}
else
{
Settings.APUEnabled = FALSE;
IAPU.APUExecuting = FALSE;
S9xSetSoundMute (TRUE);
}
S9xFixSoundAfterSnapshotLoad (1);
ICPU.ShiftedPB = Registers.PB << 16;
ICPU.ShiftedDB = Registers.DB << 16;
S9xSetPCBase (ICPU.ShiftedPB + Registers.PC);
S9xUnpackStatus ();
S9xFixCycles ();
S9xReschedule ();
return (SUCCESS);
}
static int Unfreeze()
{
// notaz: overflowing the damn Symbian stack again
char buffer [16];
char rom_filename [512];
int result;
int version;
unsigned int len = strlen(SNAPSHOT_MAGIC) + 1 + 4 + 1;
if (statef_read(buffer, len) != (int)len)
return (WRONG_FORMAT);
if (strncmp(buffer, SNAPSHOT_MAGIC, strlen(SNAPSHOT_MAGIC)) != 0)
return (WRONG_FORMAT);
if ((version = atoi(&buffer [strlen(SNAPSHOT_MAGIC) + 1])) > SNAPSHOT_VERSION)
return (WRONG_VERSION);
if ((result = UnfreezeBlock("NAM", (uint8*) rom_filename, 512)) != SUCCESS)
return (result);
if (strcasecmp(rom_filename, Memory.ROMFilename) != 0 &&
strcasecmp(S9xBasename(rom_filename), S9xBasename(Memory.ROMFilename)) != 0)
{
S9xMessage(S9X_WARNING, S9X_FREEZE_ROM_NAME,
"Current loaded ROM image doesn't match that required by freeze-game file.");
}
uint32 old_flags = CPU.Flags;
#ifdef USE_SA1
uint32 sa1_old_flags = SA1.Flags;
#endif
S9xReset();
S9xSetSoundMute(TRUE);
if ((result = UnfreezeStruct("CPU", &CPU, SnapCPU,
COUNT(SnapCPU))) != SUCCESS)
return (result);
FixROMSpeed();
CPU.Flags |= old_flags & (DEBUG_MODE_FLAG | TRACE_FLAG |
SINGLE_STEP_FLAG | FRAME_ADVANCE_FLAG);
if ((result = UnfreezeStruct("REG", &Registers, SnapRegisters, COUNT(SnapRegisters))) != SUCCESS)
return (result);
if ((result = UnfreezeStruct("PPU", &PPU, SnapPPU, COUNT(SnapPPU))) != SUCCESS)
return (result);
IPPU.ColorsChanged = TRUE;
IPPU.OBJChanged = TRUE;
CPU.InDMA = FALSE;
// Restore colors from PPU
unsigned int i;
for (i = 0; i < 256; i++)
{
IPPU.Red[i] = PPU.CGDATA[i] & 0x1f;
IPPU.Green[i] = (PPU.CGDATA[i] >> 5) & 0x1f;
IPPU.Blue[i] = (PPU.CGDATA[i] >> 10) & 0x1f;
}
S9xFixColourBrightness();
IPPU.RenderThisFrame = FALSE;
if ((result = UnfreezeStruct("DMA", DMA, SnapDMA,
COUNT(SnapDMA))) != SUCCESS)
return (result);
if ((result = UnfreezeBlock("VRA", Memory.VRAM, 0x10000)) != SUCCESS)
return (result);
if ((result = UnfreezeBlock("RAM", Memory.RAM, 0x20000)) != SUCCESS)
return (result);
if ((result = UnfreezeBlock("SRA", SRAM, 0x20000)) != SUCCESS)
return (result);
if ((result = UnfreezeBlock("FIL", Memory.FillRAM, 0x8000)) != SUCCESS)
return (result);
// Restore graphics shadow registers
GFX.r212c_s = Memory.FillRAM[0x212c];
GFX.r212d_s = Memory.FillRAM[0x212d];
GFX.r212e_s = Memory.FillRAM[0x212e];
GFX.r212f_s = Memory.FillRAM[0x212f];
GFX.r2130_s = Memory.FillRAM[0x2130];
GFX.r2131_s = Memory.FillRAM[0x2131];
if (UnfreezeStruct("APU", &APU, SnapAPU, COUNT(SnapAPU)) == SUCCESS)
{
SAPURegisters spcregs;
if ((result = UnfreezeStruct("ARE", &spcregs, SnapAPURegisters,
COUNT(SnapAPURegisters))) != SUCCESS)
return (result);
// reload all SPC700 regs from savestate compatible struct
IAPU.P = spcregs.P;
IAPU.YA.W = spcregs.YA.W;
IAPU.X = spcregs.X;
IAPU.S = spcregs.S;
IAPU.PC = IAPU.RAM + spcregs.PC;
if ((result = UnfreezeBlock("ARA", IAPU.RAM, 0x10000)) != SUCCESS)
return (result);
if ((result = UnfreezeStruct("SOU", &SoundData, SnapSoundData,
COUNT(SnapSoundData))) != SUCCESS)
return (result);
// notaz: just to be sure
int u;
for (u = 0; u < 8; u++)
{
SoundData.channels[u].env_ind_attack &= 0xf;
SoundData.channels[u].env_ind_decay &= 0x7;
SoundData.channels[u].env_ind_sustain &= 0x1f;
}
S9xSetSoundMute(FALSE);
S9xAPUUnpackStatus();
if (APUCheckDirectPage())
IAPU.DirectPage = IAPU.RAM + 0x100;
else
IAPU.DirectPage = IAPU.RAM;
Settings.APUEnabled = TRUE;
/*IAPU.APUExecuting*/CPU.APU_APUExecuting = TRUE;
}
else
{
Settings.APUEnabled = FALSE;
/*IAPU.APUExecuting*/CPU.APU_APUExecuting = FALSE;
S9xSetSoundMute(TRUE);
}
#ifdef USE_SA1
if ((result = UnfreezeStruct("SA1", &SA1, SnapSA1,
COUNT(SnapSA1))) == SUCCESS)
{
if ((result = UnfreezeStruct("SAR", &SA1Registers,
SnapSA1Registers, COUNT(SnapSA1Registers))) != SUCCESS)
return (result);
S9xFixSA1AfterSnapshotLoad();
SA1.Flags |= sa1_old_flags & (TRACE_FLAG);
}
#endif
S9xFixSoundAfterSnapshotLoad();
ICPU.ShiftedPB = Registers.PB << 16;
ICPU.ShiftedDB = Registers.DB << 16;
S9xSetPCBase(ICPU.ShiftedPB + Registers.PC);
#ifndef ASMCPU
S9xUnpackStatus(); // not needed
S9xFixCycles(); // also not needed?
#endif
S9xReschedule();
S9xSRTCPostLoadState();
if (Settings.SDD1) S9xSDD1PostLoadState();
return (SUCCESS);
}
bool8 S9xDoScreenshot (int width, int height)
{
Settings.TakeScreenshot = FALSE;
#ifdef HAVE_LIBPNG
FILE *fp;
png_structp png_ptr;
png_infop info_ptr;
png_color_8 sig_bit;
int imgwidth, imgheight;
const char *fname;
fname = S9xGetFilenameInc(".png", SCREENSHOT_DIR);
fp = fopen(fname, "wb");
if (!fp)
{
S9xMessage(S9X_ERROR, 0, "Failed to take screenshot.");
return (FALSE);
}
png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if (!png_ptr)
{
fclose(fp);
remove(fname);
S9xMessage(S9X_ERROR, 0, "Failed to take screenshot.");
return (FALSE);
}
info_ptr = png_create_info_struct(png_ptr);
if (!info_ptr)
{
png_destroy_write_struct(&png_ptr, (png_infopp) NULL);
fclose(fp);
remove(fname);
S9xMessage(S9X_ERROR, 0, "Failed to take screenshot.");
return (FALSE);
}
if (setjmp(png_jmpbuf(png_ptr)))
{
png_destroy_write_struct(&png_ptr, &info_ptr);
fclose(fp);
remove(fname);
S9xMessage(S9X_ERROR, 0, "Failed to take screenshot.");
return (FALSE);
}
imgwidth = width;
imgheight = height;
if (Settings.StretchScreenshots == 1)
{
if (width > SNES_WIDTH && height <= SNES_HEIGHT_EXTENDED)
imgheight = height << 1;
}
else
if (Settings.StretchScreenshots == 2)
{
if (width <= SNES_WIDTH)
imgwidth = width << 1;
if (height <= SNES_HEIGHT_EXTENDED)
imgheight = height << 1;
}
png_init_io(png_ptr, fp);
png_set_IHDR(png_ptr, info_ptr, imgwidth, imgheight, 8, PNG_COLOR_TYPE_RGB, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
sig_bit.red = 5;
sig_bit.green = 5;
sig_bit.blue = 5;
png_set_sBIT(png_ptr, info_ptr, &sig_bit);
png_set_shift(png_ptr, &sig_bit);
png_write_info(png_ptr, info_ptr);
png_set_packing(png_ptr);
png_byte *row_pointer = new png_byte[png_get_rowbytes(png_ptr, info_ptr)];
uint16 *screen = GFX.Screen;
for (int y = 0; y < height; y++, screen += GFX.RealPPL)
{
png_byte *rowpix = row_pointer;
for (int x = 0; x < width; x++)
{
uint32 r, g, b;
DECOMPOSE_PIXEL(screen[x], r, g, b);
*(rowpix++) = r;
*(rowpix++) = g;
*(rowpix++) = b;
if (imgwidth != width)
{
*(rowpix++) = r;
*(rowpix++) = g;
*(rowpix++) = b;
}
}
png_write_row(png_ptr, row_pointer);
if (imgheight != height)
png_write_row(png_ptr, row_pointer);
}
delete [] row_pointer;
png_write_end(png_ptr, info_ptr);
png_destroy_write_struct(&png_ptr, &info_ptr);
fclose(fp);
fprintf(stderr, "%s saved.\n", fname);
const char *base = S9xBasename(fname);
sprintf(String, "Saved screenshot %s", base);
S9xMessage(S9X_INFO, 0, String);
return (TRUE);
#else
fprintf(stderr, "Screenshot support not available (libpng was not found at build time).\n");
return (FALSE);
#endif
}
