public int DrawCostume(VirtScreen vs, int numStrips, Actor actor, bool drawToBackBuf)
{
var pixelsNavigator = new PixelNavigator(vs.Surfaces[drawToBackBuf ? 1 : 0]);
pixelsNavigator.OffsetX(vs.XStart);
ActorX += (vs.XStart & 7);
pixelsNavigator.OffsetX(-(vs.XStart & 7));
startNav = new PixelNavigator(pixelsNavigator);
if (_vm.Game.IsOldBundle)
{
_xmove = -72;
_ymove = -100;
}
else
{
_xmove = _ymove = 0;
}
int result = 0;
for (int i = 0; i < 16; i++)
{
result |= DrawLimb(actor, i);
}
return(result);
}
public void DrawBitmap(ImageData img, VirtScreen vs, int x, int y, int width, int height, int stripnr, int numstrip, int roomWidth, DrawBitmaps flags)
{
// Check whether lights are turned on or not
var lightsOn = _vm.IsLightOn();
DrawBitmap(img, vs, new Point(x, y), width, height, stripnr, numstrip, roomWidth, flags, lightsOn);
}
protected override void PrepareDrawBitmap(ImageData img, VirtScreen vs,
Point p, int width, int height,
int stripnr, int numstrip)
{
if (_objectMode)
{
var imgData = (ImageData1)img;
objectMap = imgData.ObjectMap;
}
}
protected override void PrepareDrawBitmap(ImageData img, VirtScreen vs,
Point p, int width, int height,
int stripnr, int numstrip)
{
if (_objectMode)
{
var imgData = (ImageData1)img;
objectMap = imgData.ObjectMap;
}
}
protected CharsetRenderer(ScummEngine vm)
{
Top = 0;
Left = 0;
StartLeft = 0;
Right = 0;
Color = 0;
Center = false;
HasMask = false;
TextScreen = vm.MainVirtScreen;
BlitAlso = false;
FirstChar = false;
DisableOffsX = false;
Vm = vm;
CurId = -1;
}
protected CharsetRenderer(ScummEngine vm)
{
Top = 0;
Left = 0;
StartLeft = 0;
Right = 0;
Color = 0;
Center = false;
HasMask = false;
TextScreen = vm.MainVirtScreen;
BlitAlso = false;
FirstChar = false;
DisableOffsX = false;
Vm = vm;
CurId = -1;
}
void UpdateDirtyScreen(VirtScreen vs)
{
// Do nothing for unused virtual screens
if (vs.Height == 0)
return;
int i;
int w = 8;
int start = 0;
for (i = 0; i < Gdi.NumStrips; i++)
{
if (vs.BDirty[i] != 0)
{
int top = vs.TDirty[i];
int bottom = vs.BDirty[i];
vs.TDirty[i] = vs.Height;
vs.BDirty[i] = 0;
if (i != (Gdi.NumStrips - 1) && vs.BDirty[i + 1] == bottom && vs.TDirty[i + 1] == top)
{
// Simple optimizations: if two or more neighboring strips
// form one bigger rectangle, coalesce them.
w += 8;
continue;
}
DrawStripToScreen(vs, start * 8, w, top, bottom);
w = 8;
}
start = i + 1;
}
}
void DumpRoomObjectImages(Room room, ObjectData obj, Gdi gdi)
{
var text = new ScummText(obj.Name);
var sb = new StringBuilder();
sb.Append("Object #" + obj.Number).Append(" ");
var decoder = new TextDecoder(sb);
text.Decode(decoder);
sb.AppendFormat(" size: {0}x{1}", obj.Width, obj.Height);
Console.WriteLine(sb);
var j = 0;
foreach (var img in obj.Images)
{
// try
// {
var screen = new VirtScreen(0, obj.Width, obj.Height, PixelFormat.Indexed8, 2);
if (img.IsBomp)
{
var bdd = new BompDrawData();
bdd.Src = img.Data;
bdd.Dst = new PixelNavigator(screen.Surfaces[0]);
bdd.X = 0;
bdd.Y = 0;
bdd.Width = obj.Width;
bdd.Height = obj.Height;
bdd.ScaleX = 255;
bdd.ScaleY = 255;
bdd.DrawBomp();
}
else
{
gdi.DrawBitmap(img, screen, new Point(0, 0), obj.Width, obj.Height & 0xFFF8, 0, obj.Width / 8, room.Header.Width, DrawBitmaps.None, true);
}
using (var bmp = ToBitmap(room, screen))
{
bmp.Save("obj_" + obj.Number + "_" + (++j) + ".png");
}
// }
// catch (Exception e)
// {
// Console.ForegroundColor = ConsoleColor.Red;
// Console.WriteLine(e);
// Console.ResetColor();
// Console.ReadLine();
// }
}
}
void DumpRoomImage(Room room, Gdi gdi)
{
var name = room.Name ?? "room_" + room.Number;
var screen = new VirtScreen(0, room.Header.Width, room.Header.Height, PixelFormat.Indexed8, 2);
var numStrips = room.Header.Width / 8;
gdi.NumStrips = numStrips;
gdi.IsZBufferEnabled = false;
if (room.Header.Height > 0)
{
gdi.RoomChanged(room);
gdi.DrawBitmap(room.Image, screen, new Point(), room.Header.Width, room.Header.Height, 0, numStrips, room.Header.Width, 0, true);
using (var bmpRoom = ToBitmap(room, screen))
{
bmpRoom.Save(name + ".png");
}
}
DumpZPlanes(room, name);
}
internal void StartScene(byte room, Actor a = null, int objectNr = 0)
{
StopTalk();
FadeOut(_switchRoomEffect2);
_newEffect = _switchRoomEffect;
if (CurrentScript != 0xFF)
{
if (_slots[CurrentScript].Where == WhereIsObject.Room || _slots[CurrentScript].Where == WhereIsObject.FLObject)
{
//nukeArrays(CurrentScript);
CurrentScript = 0xFF;
}
else if (_slots[CurrentScript].Where == WhereIsObject.Local)
{
//if (slots[CurrentScript].cutsceneOverride && _game.version >= 5)
// error("Script %d stopped with active cutscene/override in exit", slots[CurrentScript].number);
//nukeArrays(CurrentScript);
CurrentScript = 0xFF;
}
}
if (VariableNewRoom.HasValue)
_variables[VariableNewRoom.Value] = room;
RunExitScript();
KillScriptsAndResources();
if (_game.Version >= 4)
{
StopCycle(0);
}
for (var i = 1; i < Actors.Length; i++)
{
Actors[i].Hide();
}
if (Game.Version >= 7)
{
// Set the shadow palette(s) to all black. This fixes
// bug #795940, and actually makes some sense (after all,
// shadows tend to be rather black, don't they? ;-)
Array.Clear(_shadowPalette, 0, _shadowPalette.Length);
}
else
{
for (var i = 0; i < 256; i++)
{
Gdi.RoomPalette[i] = (byte)i;
if (_shadowPalette != null)
_shadowPalette[i] = (byte)i;
}
if (Game.Version < 5)
{
SetDirtyColors(0, 255);
}
}
Variables[VariableRoom.Value] = room;
_fullRedraw = true;
_currentRoom = room;
if (room >= 0x80 && Game.Version < 7)
_roomResource = _resourceMapper[room & 0x7F];
else
_roomResource = room;
if (VariableRoomResource.HasValue)
Variables[VariableRoomResource.Value] = _roomResource;
if (room != 0)
ResourceManager.LoadRoom(room);
if (room != 0 && _game.Version == 5 && room == _roomResource)
Variables[VariableRoomFlag.Value] = 1;
ClearRoomObjects();
if (_currentRoom == 0)
{
if (roomData != null)
{
_ignoreEntryExitScript = true;
roomData.ExitScript.Data = new byte[0];
//roomData.Objects.Clear();
}
return;
}
roomData = _resManager.GetRoom(_roomResource);
_ignoreEntryExitScript = false;
if (roomData.HasPalette)
{
SetCurrentPalette(0);
}
Gdi.NumZBuffer = GetNumZBuffers();
Gdi.TransparentColor = roomData.TransparentColor;
ResetRoomSubBlocks();
ResetRoomObjects();
_drawingObjects.Clear();
if (Game.Version >= 7)
{
// Resize main virtual screen in V7 games. This is necessary
// because in V7, rooms may be higher than one screen, so we have
// to accomodate for that.
_mainVirtScreen = new VirtScreen(MainVirtScreen.TopLine, ScreenWidth, roomData.Header.Height - MainVirtScreen.TopLine, MainVirtScreen.PixelFormat, 2, true);
}
Gdi.SetMaskHeight(roomData.Header.Height);
if (VariableRoomWidth.HasValue && VariableRoomHeight.HasValue)
{
Variables[VariableRoomWidth.Value] = roomData.Header.Width;
Variables[VariableRoomHeight.Value] = roomData.Header.Height;
}
if (VariableCameraMinX.HasValue)
{
_variables[VariableCameraMinX.Value] = ScreenWidth / 2;
}
if (VariableCameraMaxX.HasValue)
{
_variables[VariableCameraMaxX.Value] = roomData.Header.Width - (ScreenWidth / 2);
}
if (Game.Version >= 7)
{
Variables[VariableCameraMinY.Value] = ScreenHeight / 2;
Variables[VariableCameraMaxY.Value] = roomData.Header.Height - (ScreenHeight / 2);
SetCameraAt(new Point((ScreenWidth / 2), (ScreenHeight / 2)));
}
else
{
_camera.Mode = CameraMode.Normal;
_camera.CurrentPosition.X = _camera.DestinationPosition.X = (ScreenWidth / 2);
_camera.CurrentPosition.Y = _camera.DestinationPosition.Y = (ScreenHeight / 2);
}
if (_roomResource == 0)
return;
Gdi.ClearGfxUsageBits();
if (_game.Version >= 5 && a != null)
{
var where = GetWhereIsObject(objectNr);
if (where != WhereIsObject.Room && where != WhereIsObject.FLObject)
throw new NotSupportedException(string.Format("StartScene: Object {0} is not in room {1}", objectNr, _currentRoom));
Point pos;
int dir;
GetObjectXYPos(objectNr, out pos, out dir);
a.PutActor(pos, _currentRoom);
a.SetDirection(dir + 180);
a.StopActorMoving();
if (Game.GameId == Scumm.IO.GameId.SamNMax)
{
Camera.CurrentPosition.X = Camera.DestinationPosition.X = a.Position.X;
SetCameraAt(a.Position);
}
}
ShowActors();
EgoPositioned = false;
TownsResetPalCycleFields();
RunEntryScript();
if (Game.Version >= 1 && Game.Version <= 2)
{
RunScript(5, false, false, new int[0]);
}
else if ((Game.Version >= 5) && (Game.Version <= 6))
{
if (a != null && !EgoPositioned)
{
var pos = GetObjectXYPos(objectNr);
a.PutActor(pos, _currentRoom);
a.Moving = 0;
}
}
else if (_game.Version >= 7)
{
if (Camera.ActorToFollow != 0)
{
a = Actors[Camera.ActorToFollow];
SetCameraAt(a.Position);
}
}
_doEffect = true;
// Hint the backend about the virtual keyboard during copy protection screens
if (_game.GameId == GameId.Monkey2)
{
if (room == 108)
_inputManager.ShowVirtualKeyboard();
else
_inputManager.HideVirtualKeyboard();
}
else if (_game.GameId == GameId.Monkey1 && _game.Variant == "ega")
{ // this is my estimation that the room code is 90 (untested)
if (room == 90)
_inputManager.ShowVirtualKeyboard();
else
_inputManager.HideVirtualKeyboard();
}
}
void PrintCharIntern(byte[] fontPtr, int charPos, int origWidth, int origHeight, int width, int height, VirtScreen vs, bool ignoreCharsetMask)
{
int drawTop = Top - vs.TopLine;
PixelNavigator?back = null;
PixelNavigator dstPtr;
Surface dstSurface;
if ((ignoreCharsetMask || !vs.HasTwoBuffers))
{
dstSurface = vs.Surfaces[0];
dstPtr = new PixelNavigator(vs.Surfaces[0]);
dstPtr.GoTo(vs.XStart + Left, drawTop);
}
else
{
dstSurface = Vm.TextSurface;
dstPtr = new PixelNavigator(dstSurface);
dstPtr.GoTo(Left, Top - Vm.ScreenTop);
}
if (BlitAlso && vs.HasTwoBuffers)
{
back = dstPtr;
dstSurface = vs.Surfaces[0];
dstPtr = new PixelNavigator(dstSurface);
dstPtr.GoTo(vs.XStart + Left, drawTop);
}
if (!ignoreCharsetMask && vs.HasTwoBuffers)
{
drawTop = Top - Vm.ScreenTop;
}
DrawBitsN(dstSurface, dstPtr, fontPtr, charPos, fontPtr[_fontPos], drawTop, origWidth, origHeight);
if (BlitAlso && vs.HasTwoBuffers)
{
// FIXME: Revisiting this code, I think the _blitAlso mode is likely broken
// right now -- we are copying stuff from "dstPtr" to "back", but "dstPtr" really
// only conatains charset data...
// One way to fix this: don't copy etc.; rather simply render the char twice,
// once to each of the two buffers. That should hypothetically yield
// identical results, though I didn't try it and right now I don't know
// any spots where I can test this...
if (!ignoreCharsetMask)
{
throw new NotSupportedException("This might be broken -- please report where you encountered this to Fingolfin");
}
// Perform some clipping
int w = Math.Min(width, dstSurface.Width - Left);
int h = Math.Min(height, dstSurface.Height - drawTop);
if (Left < 0)
{
w += Left;
back.Value.OffsetX(-Left);
dstPtr.OffsetX(-Left);
}
if (drawTop < 0)
{
h += drawTop;
back.Value.OffsetY(-drawTop);
dstPtr.OffsetY(-drawTop);
}
// Blit the image data
if (w > 0)
{
while (h-- > 0)
{
for (int i = 0; i < w; i++)
{
back.Value.Write(dstPtr.Read());
back.Value.OffsetX(1);
dstPtr.OffsetX(1);
}
back.Value.Offset(-w, 1);
dstPtr.Offset(-w, 1);
}
}
}
}
public int DrawCostume(VirtScreen vs, int numStrips, Actor actor, bool drawToBackBuf)
{
var pixelsNavigator = new PixelNavigator(vs.Surfaces[drawToBackBuf ? 1 : 0]);
pixelsNavigator.OffsetX(vs.XStart);
ActorX += (vs.XStart & 7);
_w = vs.Width;
_h = vs.Height;
pixelsNavigator.OffsetX(-(vs.XStart & 7));
startNav = new PixelNavigator(pixelsNavigator);
if (_vm.Game.Version <= 1)
{
_xmove = 0;
_ymove = 0;
}
else if (_vm.Game.IsOldBundle)
{
_xmove = -72;
_ymove = -100;
}
else
{
_xmove = _ymove = 0;
}
int result = 0;
for (int i = 0; i < 16; i++)
result |= DrawLimb(actor, i);
return result;
}
protected override void PrepareDrawBitmap(ImageData img, VirtScreen vs,
Point p, int width, int height,
int stripnr, int numstrip)
{
var ptr = img.Data;
//
// Since V3, all graphics data was encoded in strips, which is very efficient
// for redrawing only parts of the screen. However, V2 is different: here
// the whole graphics are encoded as one big chunk. That makes it rather
// difficult to draw only parts of a room/object. We handle the V2 graphics
// differently from all other (newer) graphic formats for this reason.
//
var table = (_objectMode ? null : _roomStrips);
int left = (stripnr * 8);
int right = left + (numstrip * 8);
PixelNavigator navDst;
var srcOffset = 0;
byte color, data = 0;
int run;
bool dither = false;
byte[] dither_table = new byte[128];
var ditherOffset = 0;
int theX, theY, maxX;
var surface = vs.HasTwoBuffers ? vs.Surfaces[1] : vs.Surfaces[0];
navDst = new PixelNavigator(surface);
navDst.GoTo(p.X * 8, p.Y);
var mask_ptr = GetMaskBuffer(p.X, p.Y, 1);
if (table != null)
{
run = table.run[stripnr];
color = (byte)table.color[stripnr];
srcOffset = table.offsets[stripnr];
theX = left;
maxX = right;
}
else
{
run = 1;
color = 0;
srcOffset = 0;
theX = 0;
maxX = width;
}
// Decode and draw the image data.
Debug.Assert(height <= 128);
for (; theX < maxX; theX++)
{
ditherOffset = 0;
for (theY = 0; theY < height; theY++)
{
if (--run == 0)
{
data = ptr[srcOffset++];
if ((data & 0x80) != 0)
{
run = data & 0x7f;
dither = true;
}
else
{
run = data >> 4;
dither = false;
}
color = RoomPalette[data & 0x0f];
if (run == 0)
{
run = ptr[srcOffset++];
}
}
if (!dither)
{
dither_table[ditherOffset] = color;
}
if (left <= theX && theX < right)
{
navDst.Write(dither_table[ditherOffset++]);
navDst.OffsetY(1);
}
}
if (left <= theX && theX < right)
{
navDst.Offset(1, -height);
}
}
// Draw mask (zplane) data
theY = 0;
if (table != null)
{
srcOffset = table.zoffsets[stripnr];
run = table.zrun[stripnr];
theX = left;
}
else
{
run = ptr[srcOffset++];
theX = 0;
}
while (theX < right)
{
byte runFlag = (byte)(run & 0x80);
if (runFlag != 0)
{
run &= 0x7f;
data = ptr[srcOffset++];
}
do
{
if (runFlag == 0)
data = ptr[srcOffset++];
if (left <= theX)
{
mask_ptr.Write(data);
mask_ptr.OffsetY(1);
}
theY++;
if (theY >= height)
{
if (left <= theX)
{
mask_ptr.Offset(1, -height);
}
theY = 0;
theX += 8;
if (theX >= right)
break;
}
} while ((--run) != 0);
run = ptr[srcOffset++];
}
}
static bool VirtScreenContains(VirtScreen vs, int y)
{
return (y >= vs.TopLine && y < vs.TopLine + vs.Height);
}
internal void MarkRectAsDirty(VirtScreen vs, Rect r, int dirtybit = 0)
{
MarkRectAsDirty(vs, r.Left, r.Right, r.Top, r.Bottom, dirtybit);
}
/// <summary>
/// Blit the specified rectangle from the given virtual screen to the display.
/// Note: t and b are in *virtual screen* coordinates, while x is relative to
/// the *real screen*. This is due to the way tdirty/vdirty work: they are
/// arrays which map 'strips' (sections of the real screen) to dirty areas as
/// specified by top/bottom coordinate in the virtual screen.
/// </summary>
/// <param name="vs"></param>
/// <param name="x"></param>
/// <param name="width"></param>
/// <param name="top"></param>
/// <param name="bottom"></param>
void DrawStripToScreen(VirtScreen vs, int x, int width, int top, int bottom)
{
// Short-circuit if nothing has to be drawn
if (bottom <= top || top >= vs.Height)
return;
// Perform some clipping
if (width > vs.Width - x)
width = vs.Width - x;
if (top < ScreenTop)
top = ScreenTop;
if (bottom > ScreenTop + ScreenHeight)
bottom = ScreenTop + ScreenHeight;
// Convert the vertical coordinates to real screen coords
int y = vs.TopLine + top - ScreenTop;
int height = bottom - top;
if (width <= 0 || height <= 0)
return;
byte[] src;
if (Game.Version < 7)
{
if (Game.Platform == Platform.FMTowns)
{
TownsDrawStripToScreen(vs, x, y, x, top, width, height);
return;
}
var srcNav = new PixelNavigator(vs.Surfaces[0]);
srcNav.GoTo(vs.XStart + x, top);
var compNav = new PixelNavigator(_composite);
var txtNav = new PixelNavigator(_textSurface);
int m = _textSurfaceMultiplier;
txtNav.GoTo(x * m, y * m);
var vsPitch = vs.Pitch - width * vs.BytesPerPixel;
var textPitch = _textSurface.Pitch - width * m;
for (int h = height * m; h > 0; --h)
{
for (int w = width * m; w > 0; w--)
{
var temp = txtNav.Read();
int mask = temp ^ CharsetMaskTransparency;
mask = (((mask & 0x7f) + 0x7f) | mask) & 0x80;
mask = ((mask >> 7) + 0x7f) ^ 0x80;
var dst = ((temp ^ srcNav.Read()) & mask) ^ temp;
compNav.Write((byte)dst);
srcNav.OffsetX(1);
txtNav.OffsetX(1);
compNav.OffsetX(1);
}
srcNav.OffsetX(vsPitch);
txtNav.OffsetX(textPitch);
}
src = _composite.Pixels;
}
else
{
src = new byte[width * height * vs.BytesPerPixel];
var srcNav = new PixelNavigator(vs.Surfaces[0]);
srcNav.GoTo(vs.XStart + x, top);
for (int h = 0; h < height; h++)
{
for (int w = 0; w < width; w++)
{
src[h * width + w] = srcNav.Read();
srcNav.OffsetX(1);
}
srcNav.Offset(-width, 1);
}
}
// Finally blit the whole thing to the screen
_gfxManager.CopyRectToScreen(src, width * vs.BytesPerPixel, x, y, width, height);
}
protected virtual void PrepareDrawBitmap(ImageData img, VirtScreen vs,
Point p, int width, int height,
int stripnr, int numstrip)
{
}
public void DrawBitmap(ImageData img, VirtScreen vs, Point p, int width, int height, int stripnr, int numstrip, int roomWidth, DrawBitmaps flags, bool isLightOn)
{
var x = p.X;
var y = p.Y;
if ((_vm.TownsPaletteFlags & 2) != 0)
{
int cx = (x - _vm.ScreenStartStrip) << 3;
Gdi.Fill(_vm.TextSurface,
new Rect(cx * _vm.TextSurfaceMultiplier, y * _vm.TextSurfaceMultiplier,
(cx + width - 1) * _vm.TextSurfaceMultiplier, (y + height - 1) * _vm.TextSurfaceMultiplier), 0);
}
_objectMode = flags.HasFlag(DrawBitmaps.ObjectMode);
PrepareDrawBitmap(img, vs, p, width, height, stripnr, numstrip);
int sx = x - vs.XStart / 8;
if (sx < 0)
{
numstrip -= -sx;
x += -sx;
stripnr += -sx;
sx = 0;
}
// Compute the number of strips we have to iterate over.
// TODO/FIXME: The computation of its initial value looks very fishy.
// It was added as a kind of hack to fix some corner cases, but it compares
// the room width to the virtual screen width; but the former should always
// be bigger than the latter (except for MM NES, maybe)... strange
int limit = Math.Max(roomWidth, vs.Width) / 8 - x;
if (limit > numstrip)
limit = numstrip;
if (limit > NumStrips - sx)
limit = NumStrips - sx;
for (int k = 0; k < limit; ++k, ++stripnr, ++sx, ++x)
{
if (y < vs.TDirty[sx])
vs.TDirty[sx] = y;
if (y + height > vs.BDirty[sx])
vs.BDirty[sx] = y + height;
// In the case of a double buffered virtual screen, we draw to
// the backbuffer, otherwise to the primary surface memory.
var surface = vs.HasTwoBuffers ? vs.Surfaces[1] : vs.Surfaces[0];
var navDst = new PixelNavigator(surface);
navDst.GoTo(x * 8, y);
bool transpStrip;
using (var smapReader = new BinaryReader(new MemoryStream(img.Data)))
{
transpStrip = DrawStrip(navDst, width, height, stripnr, smapReader);
}
// COMI and HE games only uses flag value
if (game.Version == 8)
transpStrip = true;
if (vs.HasTwoBuffers)
{
var navFrontBuf = new PixelNavigator(vs.Surfaces[0]);
navFrontBuf.GoTo(x * 8, y);
if (isLightOn)
Copy8Col(navFrontBuf, navDst, height);
else
Clear8Col(navFrontBuf, height);
}
DecodeMask(x, y, width, height, stripnr, img.ZPlanes, transpStrip, flags);
}
}
public void DrawBitmap(ImageData img, VirtScreen vs, int x, int y, int width, int height, int stripnr, int numstrip, int roomWidth, DrawBitmaps flags)
{
// Check whether lights are turned on or not
var lightsOn = _vm.IsLightOn();
DrawBitmap(img, vs, new Point(x, y), width, height, stripnr, numstrip, roomWidth, flags, lightsOn);
}
protected void TownsDrawStripToScreen(VirtScreen vs, int dstX, int dstY, int srcX, int srcY, int width, int height)
{
if (width <= 0 || height <= 0)
return;
int m = _textSurfaceMultiplier;
var src1 = new PixelNavigator(vs.Surfaces[0]);
src1.GoTo(vs.XStart + srcX, srcY);
var src2 = new PixelNavigator(_textSurface);
src2.GoTo(srcX * m, (srcY + vs.TopLine - ScreenTop) * m);
var dst1 = new PixelNavigator(_townsScreen.GetLayerPixels(0, dstX, dstY).Value);
var dst2 = new PixelNavigator(_townsScreen.GetLayerPixels(1, dstX * m, dstY * m).Value);
int dp1 = _townsScreen.GetLayerPitch(0) - width * _townsScreen.GetLayerBpp(0);
int dp2 = _townsScreen.GetLayerPitch(1) - width * m * _townsScreen.GetLayerBpp(1);
int sp1 = vs.Pitch - (width * Surface.GetBytesPerPixel(vs.PixelFormat));
int sp2 = _textSurface.Pitch - width * m;
if (vs == MainVirtScreen || Game.GameId == GameId.Indy3 || Game.GameId == GameId.Zak)
{
for (int h = 0; h < height; ++h)
{
if (Surface.GetBytesPerPixel(_gfxManager.PixelFormat) == 2)
{
for (int w = 0; w < width; ++w)
{
dst1.WriteUInt16(_16BitPalette[src1.Read()]);
src1.OffsetX(1);
dst1.OffsetX(1);
}
src1.OffsetX(sp1 / src1.BytesByPixel);
dst1.OffsetX(dp1 / dst1.BytesByPixel);
}
else
{
for (int i = 0; i < width; i++)
{
dst1.Write(src1.Read());
dst1.OffsetX(1);
src1.OffsetX(1);
}
}
for (int sH = 0; sH < m; ++sH)
{
for (int i = 0; i < width * m; i++)
{
dst2.Write(src2.Read());
src2.OffsetX(1);
dst2.OffsetX(1);
}
src2.OffsetX(_textSurface.Width - (width * m));
dst2.OffsetX(dst2.Width - (width * m));
}
}
}
else
{
dst1 = new PixelNavigator(dst2);
for (int h = 0; h < height; ++h)
{
for (int w = 0; w < width; ++w)
{
var t = (src1.Read()) & 0x0f;
src1.OffsetX(1);
for (int i = 0; i < m; i++)
{
dst1.Write((byte)((t << 4) | t));
dst1.OffsetX(1);
}
}
dst1 = new PixelNavigator(dst2);
var src3 = new PixelNavigator(src2);
if (m == 2)
{
dst2.OffsetY(1);
src3.OffsetY(1);
}
for (int w = 0; w < width * m; ++w)
{
dst2.Write((byte)(src3.Read() | dst1.Read() & _townsLayer2Mask[src3.Read()]));
dst2.OffsetX(1);
dst1.Write((byte)(src2.Read() | dst1.Read() & _townsLayer2Mask[src2.Read()]));
src2.OffsetX(1);
src3.OffsetX(1);
dst1.OffsetX(1);
}
src1.OffsetX(sp1 / src1.BytesByPixel);
src2 = new PixelNavigator(src3);
src2.OffsetX(sp2 / src2.BytesByPixel);
dst1 = new PixelNavigator(dst2);
dst1.OffsetX(dp2 / dst1.BytesByPixel);
dst2.OffsetX(dp2 / dst2.BytesByPixel);
}
}
_townsScreen.AddDirtyRect(dstX * m, dstY * m, width * m, height * m);
}
public void DrawBitmap(ImageData img, VirtScreen vs, Point p, int width, int height, int stripnr, int numstrip, int roomWidth, DrawBitmaps flags, bool isLightOn)
{
var x = p.X;
var y = p.Y;
if ((_vm.TownsPaletteFlags & 2) != 0)
{
int cx = (x - _vm.ScreenStartStrip) << 3;
Gdi.Fill(_vm.TextSurface,
new Rect(cx * _vm.TextSurfaceMultiplier, y * _vm.TextSurfaceMultiplier,
(cx + width - 1) * _vm.TextSurfaceMultiplier, (y + height - 1) * _vm.TextSurfaceMultiplier), 0);
}
_objectMode = flags.HasFlag(DrawBitmaps.ObjectMode);
PrepareDrawBitmap(img, vs, p, width, height, stripnr, numstrip);
int sx = x - vs.XStart / 8;
if (sx < 0)
{
numstrip -= -sx;
x += -sx;
stripnr += -sx;
sx = 0;
}
// Compute the number of strips we have to iterate over.
// TODO/FIXME: The computation of its initial value looks very fishy.
// It was added as a kind of hack to fix some corner cases, but it compares
// the room width to the virtual screen width; but the former should always
// be bigger than the latter (except for MM NES, maybe)... strange
int limit = Math.Max(roomWidth, vs.Width) / 8 - x;
if (limit > numstrip)
{
limit = numstrip;
}
if (limit > NumStrips - sx)
{
limit = NumStrips - sx;
}
for (int k = 0; k < limit; ++k, ++stripnr, ++sx, ++x)
{
if (y < vs.TDirty[sx])
{
vs.TDirty[sx] = y;
}
if (y + height > vs.BDirty[sx])
{
vs.BDirty[sx] = y + height;
}
// In the case of a double buffered virtual screen, we draw to
// the backbuffer, otherwise to the primary surface memory.
var surface = vs.HasTwoBuffers ? vs.Surfaces[1] : vs.Surfaces[0];
var navDst = new PixelNavigator(surface);
navDst.GoTo(x * 8, y);
bool transpStrip;
using (var smapReader = new BinaryReader(new MemoryStream(img.Data)))
{
transpStrip = DrawStrip(navDst, width, height, stripnr, smapReader);
}
// COMI and HE games only uses flag value
if (game.Version == 8)
{
transpStrip = true;
}
if (vs.HasTwoBuffers)
{
var navFrontBuf = new PixelNavigator(vs.Surfaces[0]);
navFrontBuf.GoTo(x * 8, y);
if (isLightOn)
{
Copy8Col(navFrontBuf, navDst, height);
}
else
{
Clear8Col(navFrontBuf, height);
}
}
DecodeMask(x, y, width, height, stripnr, img.ZPlanes, transpStrip, flags);
}
}
internal void MarkRectAsDirty(VirtScreen vs, int left, int right, int top, int bottom, int dirtybit = 0)
{
int lp, rp;
if (left > right || top > bottom)
return;
if (top > vs.Height || bottom < 0)
return;
if (top < 0)
top = 0;
if (bottom > vs.Height)
bottom = vs.Height;
if (vs == MainVirtScreen && dirtybit != 0)
{
lp = left / 8 + _screenStartStrip;
if (lp < 0)
lp = 0;
rp = (right + vs.XStart) / 8;
if (_game.Version >= 7)
{
if (rp > 409)
rp = 409;
}
else
{
if (rp >= 200)
rp = 200;
}
for (; lp <= rp; lp++)
Gdi.SetGfxUsageBit(lp, dirtybit);
}
// The following code used to be in the separate method setVirtscreenDirty
lp = left / 8;
rp = right / 8;
if ((lp >= Gdi.NumStrips) || (rp < 0))
return;
if (lp < 0)
lp = 0;
if (rp >= Gdi.NumStrips)
rp = Gdi.NumStrips - 1;
while (lp <= rp)
{
if (top < vs.TDirty[lp])
vs.TDirty[lp] = top;
if (bottom > vs.BDirty[lp])
vs.BDirty[lp] = bottom;
lp++;
}
}
protected virtual void PrepareDrawBitmap(ImageData img, VirtScreen vs,
Point p, int width, int height,
int stripnr, int numstrip)
{
}
public override void PrintChar(int chr, bool ignoreCharsetMask)
{
Rect shadow;
Debug.Assert(_current != null);
if (chr == '@')
{
return;
}
shadow.Left = Left;
shadow.Top = Top;
if (FirstChar)
{
Str.Left = (shadow.Left >= 0) ? shadow.Left : 0;
Str.Top = (shadow.Top >= 0) ? shadow.Top : 0;
Str.Right = Str.Left;
Str.Bottom = Str.Top;
FirstChar = false;
}
int width = _current.GetCharWidth((char)chr);
int height = _current.GetCharHeight((char)chr);
// bool is2byte = chr >= 256 && _vm._useCJKMode;
// if (is2byte)
// width = _vm._2byteWidth;
shadow.Right = Left + width;
shadow.Bottom = Top + height;
Surface s;
if (!ignoreCharsetMask)
{
HasMask = true;
TextScreen = Vm.MainVirtScreen;
}
int offsetX = 0;
int drawTop = Top;
if (ignoreCharsetMask)
{
VirtScreen vs = Vm.MainVirtScreen;
s = vs.Surfaces[0];
offsetX = vs.XStart;
}
else
{
s = Vm.TextSurface;
drawTop -= Vm.ScreenTop;
}
var dst = new PixelNavigator(s);
dst.GoTo(Left + offsetX, drawTop);
// if (chr >= 256 && _vm._useCJKMode)
// _current.draw2byte(s, chr, _left, drawTop, _color);
// else
_current.DrawChar(dst, (char)chr, Left, drawTop, Color);
Vm.MarkRectAsDirty(Vm.MainVirtScreen, shadow);
if (Str.Left > Left)
{
Str.Left = Left;
}
// Original keeps glyph width and character dimensions separately
// if ((_vm._language == Common::ZH_TWN || _vm._language == Common::KO_KOR) && is2byte)
// width++;
Left += width;
if (Str.Right < shadow.Right)
{
Str.Right = shadow.Right;
}
if (Str.Bottom < shadow.Bottom)
{
Str.Bottom = shadow.Bottom;
}
}
protected void InitScreens(int b, int h)
{
if (_townsScreen != null)
{
if (_townsClearLayerFlag == 0 && MainVirtScreen != null && ((h - b) != MainVirtScreen.Height))
_townsScreen.ClearLayer(0);
if (Game.GameId != GameId.Monkey1)
{
Gdi.Fill(TextSurface,
new Rect(0, 0, _textSurface.Width * _textSurfaceMultiplier, _textSurface.Height * _textSurfaceMultiplier), 0);
_townsScreen.ClearLayer(1);
}
}
var format = Game.Features.HasFlag(GameFeatures.Is16BitColor) ? PixelFormat.Rgb16 : PixelFormat.Indexed8;
_mainVirtScreen = new VirtScreen(b, ScreenWidth, h - b, format, 2, true);
_textVirtScreen = new VirtScreen(0, ScreenWidth, b, format, 1);
_verbVirtScreen = new VirtScreen(h, ScreenWidth, ScreenHeight - h, format, 1);
// Since the size of screen 3 is fixed, there is no need to reallocate
// it if its size changed.
// Not sure what it is good for, though. I think it may have been used
// in pre-V7 for the games messages (like 'Pause', Yes/No dialogs,
// version display, etc.). I don't know about V7, maybe the same is the
// case there. If so, we could probably just remove it completely.
if (_game.Version >= 7)
{
_unkVirtScreen = new VirtScreen((ScreenHeight / 2) - 10, ScreenWidth, 13, format, 1);
}
else
{
_unkVirtScreen = new VirtScreen(80, ScreenWidth, 13, format, 1);
}
_screenB = b;
_screenH = h;
Gdi.Init();
}
protected override void PrepareDrawBitmap(ImageData img, VirtScreen vs,
Point p, int width, int height,
int stripnr, int numstrip)
{
var ptr = img.Data;
//
// Since V3, all graphics data was encoded in strips, which is very efficient
// for redrawing only parts of the screen. However, V2 is different: here
// the whole graphics are encoded as one big chunk. That makes it rather
// difficult to draw only parts of a room/object. We handle the V2 graphics
// differently from all other (newer) graphic formats for this reason.
//
var table = (_objectMode ? null : _roomStrips);
int left = (stripnr * 8);
int right = left + (numstrip * 8);
PixelNavigator navDst;
var srcOffset = 0;
byte color, data = 0;
int run;
bool dither = false;
byte[] dither_table = new byte[128];
var ditherOffset = 0;
int theX, theY, maxX;
var surface = vs.HasTwoBuffers ? vs.Surfaces[1] : vs.Surfaces[0];
navDst = new PixelNavigator(surface);
navDst.GoTo(p.X * 8, p.Y);
var mask_ptr = GetMaskBuffer(p.X, p.Y, 1);
if (table != null)
{
run = table.run[stripnr];
color = (byte)table.color[stripnr];
srcOffset = table.offsets[stripnr];
theX = left;
maxX = right;
}
else
{
run = 1;
color = 0;
srcOffset = 0;
theX = 0;
maxX = width;
}
// Decode and draw the image data.
Debug.Assert(height <= 128);
for (; theX < maxX; theX++)
{
ditherOffset = 0;
for (theY = 0; theY < height; theY++)
{
if (--run == 0)
{
data = ptr[srcOffset++];
if ((data & 0x80) != 0)
{
run = data & 0x7f;
dither = true;
}
else
{
run = data >> 4;
dither = false;
}
color = RoomPalette[data & 0x0f];
if (run == 0)
{
run = ptr[srcOffset++];
}
}
if (!dither)
{
dither_table[ditherOffset] = color;
}
if (left <= theX && theX < right)
{
navDst.Write(dither_table[ditherOffset++]);
navDst.OffsetY(1);
}
}
if (left <= theX && theX < right)
{
navDst.Offset(1, -height);
}
}
// Draw mask (zplane) data
theY = 0;
if (table != null)
{
srcOffset = table.zoffsets[stripnr];
run = table.zrun[stripnr];
theX = left;
}
else
{
run = ptr[srcOffset++];
theX = 0;
}
while (theX < right)
{
byte runFlag = (byte)(run & 0x80);
if (runFlag != 0)
{
run &= 0x7f;
data = ptr[srcOffset++];
}
do
{
if (runFlag == 0)
{
data = ptr[srcOffset++];
}
if (left <= theX)
{
mask_ptr.Write(data);
mask_ptr.OffsetY(1);
}
theY++;
if (theY >= height)
{
if (left <= theX)
{
mask_ptr.Offset(1, -height);
}
theY = 0;
theX += 8;
if (theX >= right)
{
break;
}
}
} while ((--run) != 0);
run = ptr[srcOffset++];
}
}
System.Drawing.Color ToColor(Room room, VirtScreen screen, int x, int y)
{
var index = screen.Surfaces[0].Pixels[y * screen.Width + x];
var c = Game.Features.HasFlag(GameFeatures.SixteenColors) ?
Palette.Cga.Colors[index] : room.Palette.Colors[index];
return System.Drawing.Color.FromArgb(c.R, c.G, c.B);
}
void PrintCharIntern(byte[] fontPtr, int charPos, int origWidth, int origHeight, int width, int height, VirtScreen vs, bool ignoreCharsetMask)
{
int drawTop = Top - vs.TopLine;
PixelNavigator? back = null;
PixelNavigator dstPtr;
Surface dstSurface;
if ((ignoreCharsetMask || !vs.HasTwoBuffers))
{
dstSurface = vs.Surfaces[0];
dstPtr = new PixelNavigator(vs.Surfaces[0]);
dstPtr.GoTo(vs.XStart + Left, drawTop);
}
else
{
dstSurface = Vm.TextSurface;
dstPtr = new PixelNavigator(dstSurface);
dstPtr.GoTo(Left, Top - Vm.ScreenTop);
}
if (BlitAlso && vs.HasTwoBuffers)
{
back = dstPtr;
dstSurface = vs.Surfaces[0];
dstPtr = new PixelNavigator(dstSurface);
dstPtr.GoTo(vs.XStart + Left, drawTop);
}
if (!ignoreCharsetMask && vs.HasTwoBuffers)
{
drawTop = Top - Vm.ScreenTop;
}
DrawBitsN(dstSurface, dstPtr, fontPtr, charPos, fontPtr[_fontPos], drawTop, origWidth, origHeight);
if (BlitAlso && vs.HasTwoBuffers)
{
// FIXME: Revisiting this code, I think the _blitAlso mode is likely broken
// right now -- we are copying stuff from "dstPtr" to "back", but "dstPtr" really
// only conatains charset data...
// One way to fix this: don't copy etc.; rather simply render the char twice,
// once to each of the two buffers. That should hypothetically yield
// identical results, though I didn't try it and right now I don't know
// any spots where I can test this...
if (!ignoreCharsetMask)
throw new NotSupportedException("This might be broken -- please report where you encountered this to Fingolfin");
// Perform some clipping
int w = Math.Min(width, dstSurface.Width - Left);
int h = Math.Min(height, dstSurface.Height - drawTop);
if (Left < 0)
{
w += Left;
back.Value.OffsetX(-Left);
dstPtr.OffsetX(-Left);
}
if (drawTop < 0)
{
h += drawTop;
back.Value.OffsetY(-drawTop);
dstPtr.OffsetY(-drawTop);
}
// Blit the image data
if (w > 0)
{
while (h-- > 0)
{
for (int i = 0; i < w; i++)
{
back.Value.Write(dstPtr.Read());
back.Value.OffsetX(1);
dstPtr.OffsetX(1);
}
back.Value.Offset(-w, 1);
dstPtr.Offset(-w, 1);
}
}
}
}
System.Drawing.Color ToColor(byte[] pixels, Palette palette, VirtScreen screen, int x, int y)
{
var index = pixels[y * screen.Width + x];
var c = palette.Colors[index];
return System.Drawing.Color.FromArgb(c.R, c.G, c.B);
}
static byte[] Capture(VirtScreen screen, int x, int y, int w, int h)
{
var pixels = new byte[w * h];
var nav = new PixelNavigator(screen.Surfaces[0]);
nav.GoTo(x, y);
for (int height = 0; height < h; height++)
{
for (int width = 0; width < w; width++)
{
pixels[height * w + width] = nav.Read();
nav.OffsetX(1);
}
nav.Offset(-w, 1);
}
return pixels;
}
System.Drawing.Bitmap ToBitmap(Room room, VirtScreen screen)
{
var bmp = new System.Drawing.Bitmap(screen.Width, screen.Height);
// DitherCGA(screen.Surfaces[0].Pixels, screen.Surfaces[0].Pitch, 0, 0, screen.Width, screen.Height);
var palette = Game.Features.HasFlag(GameFeatures.SixteenColors) ? Palette.Ega : room.Palette;
for (int x = 0; x < screen.Width; x++)
{
for (int y = 0; y < screen.Height; y++)
{
bmp.SetPixel(x, y, ToColor(screen.Surfaces[0].Pixels, palette, screen, x, y));
}
}
return bmp;
}