Changeset 487


Ignore:
Timestamp:
Dec 8, 2023, 11:39:45 PM (12 months ago)
Author:
chronos
Message:
  • Added: Range checking for TPixelPointer record type.
Location:
trunk
Files:
1 added
6 edited

Legend:

Unmodified
Added
Removed

  • trunk/LocalPlayer/Select.pas

    r486 r487  
    275275        begin // city size
    276276          Brush.Color := $000000;
    277           FillRect(rect(X - 4 - 11, Y + 1, X - 4 + 13, Y + 21));
     277          FillRect(Rect(X - 4 - 11, Y + 1, X - 4 + 13, Y + 21));
    278278          Brush.Color := $FFFFFF;
    279           FillRect(rect(X - 4 - 12, Y, X - 4 + 12, Y + 20));
     279          FillRect(Rect(X - 4 - 12, Y, X - 4 + 12, Y + 20));
    280280          Brush.Style := TBrushStyle.bsClear;
    281281          Font.Color := $000000;
    … …  
    286286      if Kind = kCityEvents then
    287287      begin
    288         first := -1;
     288        First := -1;
    289289        for J := 0 to nCityEventPriority - 1 do
    290290          if (Flags and CityRepMask and CityEventPriority[J] <> 0) then
    291291          begin
    292             first := J;
     292            First := J;
    293293            Break;
    294294          end;
    295         if first >= 0 then
     295        if First >= 0 then
    296296        begin
    297297          I := 0;
    298298          Test := 1;
    299           while Test < CityEventPriority[first] do
     299          while Test < CityEventPriority[First] do
    300300          begin
    301301            Inc(I);
    … …  
    303303          end;
    304304          S := CityEventName(I);
    305           { if CityEventPriority[first]=chNoGrowthWarning then
    306             if Built[imAqueduct]=0 then
    307             S:=Format(S,[Phrases.Lookup('IMPROVEMENTS',imAqueduct)])
    308             else begin S:=Format(S,[Phrases.Lookup('IMPROVEMENTS',imSewer)]); I:=17 end; }
     305          { if CityEventPriority[First] = chNoGrowthWarning then
     306            if Built[imAqueduct] = 0 then
     307            S := Format(S, [Phrases.Lookup('IMPROVEMENTS', imAqueduct)])
     308            else begin S := Format(S, [Phrases.Lookup('IMPROVEMENTS', imSewer)]); I := 17 end; }
    309309          ReplaceText(X + (CityNameSpace + 4 + 40 + 18 + 8), Y, TextColor, S);
    310310          if NonText then
    … …  
    313313              y0 + 1, 18, 18, 1 + I mod 3 * 19, 1 + I div 3 * 19);
    314314            X := InnerWidth - 26;
    315             for J := nCityEventPriority - 1 downto first + 1 do
     315            for J := nCityEventPriority - 1 downto First + 1 do
    316316              if (Flags and CityRepMask and CityEventPriority[J] <> 0) then
    317317              begin

  • trunk/MiniMap.pas

    r479 r487  
    283283  Bitmap.BeginUpdate;
    284284  MiniPixel := TPixelPointer.Create(Bitmap);
    285   PrevMiniPixel := TPixelPointer.Create(Bitmap, 0, -1);
     285  PrevMiniPixel := TPixelPointer.Create(Bitmap);
    286286
    287287  xx := ScaleToNative(Size.X);
    … …  
    350350    end;
    351351    MiniPixel.NextLine;
    352     PrevMiniPixel.NextLine;
     352    if y > 0 then PrevMiniPixel.NextLine;
    353353  end;
    354354  Bitmap.EndUpdate;

  • trunk/Packages/Common/PixelPointer.pas

    r456 r487  
    3535    BytesPerPixel: Integer;
    3636    BytesPerLine: Integer;
     37    Data: PPixel32;
     38    Width: Integer;
     39    Height: Integer;
    3740    procedure NextLine; inline; // Move pointer to start of next line
    3841    procedure PreviousLine; inline; // Move pointer to start of previous line
    … …  
    4144    procedure SetXY(X, Y: Integer); inline; // Set pixel position relative to base
    4245    procedure SetX(X: Integer); inline; // Set horizontal pixel position relative to base
    43     class function Create(Bitmap: TRasterImage; BaseX: Integer = 0; BaseY: Integer = 0): TPixelPointer; inline; static;
     46    procedure CheckRange; inline; // Check if current pixel position is not out of range
     47    class function Create(Bitmap: TRasterImage; BaseX: Integer = 0; BaseY: Integer = 0): TPixelPointer; static;
    4448  end;
    4549  PPixelPointer = ^TPixelPointer;
    … …  
    6367implementation
    6468
     69resourcestring
     70  SOutOfRange = 'Pixel pointer out of range';
     71  SWrongBitmapSize = 'Wrong bitmap size [width: %d, height: %d]';
     72
    6573{ TPixel32 }
    6674
    … …  
    110118begin
    111119  Pixel := Pointer(Line) + X * BytesPerPixel;
     120end;
     121
     122procedure TPixelPointer.CheckRange;
     123begin
     124  {$IFOPT R+}
     125  if (PByte(Pixel) < PByte(Data)) or
     126    (PByte(Pixel) >= PByte(Data) + (Width + Height * BytesPerLine) * BytesPerPixel) then
     127    raise Exception.Create(SOutOfRange);
     128  {$ENDIF}
    112129end;
    113130
    … …  
    298315  BaseY: Integer): TPixelPointer;
    299316begin
     317  Result.Width := Bitmap.Width;
     318  Result.Height := Bitmap.Height;
     319  if (Result.Width < 0) or (Result.Height < 0) then
     320    raise Exception.Create(Format(SWrongBitmapSize, [Result.Width, Result.Height]));
    300321  Result.BytesPerLine := Bitmap.RawImage.Description.BytesPerLine;
    301322  Result.BytesPerPixel := Bitmap.RawImage.Description.BitsPerPixel shr 3;
     323  Result.Data := PPixel32(Bitmap.RawImage.Data);
    302324  Result.Base := PPixel32(Bitmap.RawImage.Data + BaseX * Result.BytesPerPixel +
    303325    BaseY * Result.BytesPerLine);

  • trunk/Packages/DpiControls/Dpi.Graphics.pas

    r477 r487  
    270270    procedure ScreenChanged; override;
    271271  public
     272    procedure Assign(Source: TPersistent); override;
    272273    procedure SetSize(AWidth, AHeight: Integer); override;
    273274  end;
    … …  
    293294    constructor Create; override;
    294295    destructor Destroy; override;
    295     procedure Assign(Source: TPersistent); override;
    296296    property ScanLine[Row: Integer]: Pointer read GetScanLine;
    297297  published
    … …  
    418418end;
    419419
     420procedure TCustomBitmap.Assign(Source: TPersistent);
     421begin
     422  if Source is TCustomBitmap then begin
     423    GetNativeCustomBitmap.Assign(TCustomBitmap(Source).GetNativeCustomBitmap);
     424    FWidth := TCustomBitmap(Source).FWidth;
     425    FHeight := TCustomBitmap(Source).FHeight
     426  end else inherited;
     427end;
     428
    420429procedure TCustomBitmap.SetSize(AWidth, AHeight: Integer);
    421430begin
    … …  
    691700  //Exit;
    692701  Dst.BeginUpdate;
    693   SrcPtr := PixelPointer(Src, 0, 0);
    694   DstPtr := PixelPointer(Dst, 0, 0);
     702  SrcPtr := TPixelPointer.Create(Src, 0, 0);
     703  DstPtr := TPixelPointer.Create(Dst, 0, 0);
    695704  {for yy := 0 to Dst.Height - 1 do begin
    696705    for xx := 0 to Dst.Width - 1 do begin
    … …  
    841850end;
    842851
    843 procedure TBitmap.Assign(Source: TPersistent);
    844 begin
    845   if Source is TBitmap then begin
    846     GetNativeBitmap.Assign((Source as TBitmap).GetNativeBitmap);
    847   end else inherited;
    848 end;
    849 
    850852{ TPen }
    851853

  • trunk/Packages/DpiControls/Dpi.PixelPointer.pas

    r468 r487  
    44
    55uses
    6   Classes, SysUtils, Dpi.Graphics;
     6  Classes, SysUtils, Dpi.Graphics, Dpi.Common;
    77
    88type
    … …  
    3535    BytesPerPixel: Integer;
    3636    BytesPerLine: Integer;
     37    Data: PPixel32;
     38    Width: Integer;
     39    Height: Integer;
    3740    procedure NextLine; inline; // Move pointer to start of next line
    3841    procedure PreviousLine; inline; // Move pointer to start of previous line
    … …  
    4144    procedure SetXY(X, Y: Integer); inline; // Set pixel position relative to base
    4245    procedure SetX(X: Integer); inline; // Set horizontal pixel position relative to base
    43     class function Create(Bitmap: TRasterImage; BaseX: Integer = 0; BaseY: Integer = 0): TPixelPointer; inline; static;
     46    procedure CheckRange; inline; // Check if current pixel position is not out of range
     47    class function Create(Bitmap: TRasterImage; BaseX: Integer = 0; BaseY: Integer = 0): TPixelPointer; static;
    4448  end;
    4549  PPixelPointer = ^TPixelPointer;
    … …  
    6367implementation
    6468
     69resourcestring
     70  SOutOfRange = 'Pixel pointer out of range';
     71  SWrongBitmapSize = 'Wrong bitmap size [width: %d, height: %d]';
     72
    6573{ TPixel32 }
    6674
    … …  
    8391  Line := Pointer(Line) + BytesPerLine;
    8492  Pixel := Line;
     93  CheckRange;
    8594end;
    8695
    … …  
    8998  Line := Pointer(Line) - BytesPerLine;
    9099  Pixel := Line;
     100  CheckRange;
    91101end;
    92102
    … …  
    94104begin
    95105  Pixel := Pointer(Pixel) + BytesPerPixel;
     106  CheckRange;
    96107end;
    97108
    … …  
    99110begin
    100111  Pixel := Pointer(Pixel) - BytesPerPixel;
     112  CheckRange;
    101113end;
    102114
    … …  
    110122begin
    111123  Pixel := Pointer(Line) + X * BytesPerPixel;
     124  CheckRange;
     125end;
     126
     127procedure TPixelPointer.CheckRange;
     128begin
     129  {$IFOPT R+}
     130  if (PByte(Pixel) < PByte(Data)) or
     131    (PByte(Pixel) >= PByte(Data) + (Width + Height * BytesPerLine) * BytesPerPixel) then
     132    raise Exception.Create(SOutOfRange);
     133  {$ENDIF}
    112134end;
    113135
    … …  
    298320  BaseY: Integer): TPixelPointer;
    299321begin
     322  Result.Width := ScaleToNative(Bitmap.Width);
     323  Result.Height := ScaleToNative(Bitmap.Height);
     324  if (Result.Width < 0) or (Result.Height < 0) then
     325    raise Exception.Create(Format(SWrongBitmapSize, [Result.Width, Result.Height]));
    300326  Result.BytesPerLine := Bitmap.RawImage.Description.BytesPerLine;
    301327  Result.BytesPerPixel := Bitmap.RawImage.Description.BitsPerPixel shr 3;
     328  Result.Data := PPixel32(Bitmap.RawImage.Data);
    302329  Result.Base := PPixel32(Bitmap.RawImage.Data + BaseX * Result.BytesPerPixel +
    303330    BaseY * Result.BytesPerLine);

  • trunk/Packages/DpiControls/NativePixelPointer.pas

    r468 r487  
    3232    BytesPerPixel: Integer;
    3333    BytesPerLine: Integer;
     34    Data: PPixel32;
     35    Width: Integer;
     36    Height: Integer;
    3437    procedure NextLine; inline; // Move pointer to start of next line
    3538    procedure PreviousLine; inline; // Move pointer to start of previous line
    … …  
    3841    procedure SetXY(X, Y: Integer); inline; // Set pixel position relative to base
    3942    procedure SetX(X: Integer); inline; // Set horizontal pixel position relative to base
     43    procedure CheckRange; inline; // Check if current pixel position is not out of range
     44    class function Create(Bitmap: TRasterImage; BaseX: Integer = 0; BaseY: Integer = 0): TPixelPointer; static;
    4045  end;
    4146  PPixelPointer = ^TPixelPointer;
    4247
    43   function PixelPointer(Bitmap: TRasterImage; BaseX: Integer = 0; BaseY: Integer = 0): TPixelPointer; inline;
    4448  function Color32ToColor(Color: TColor32): TColor;
    4549  function ColorToColor32(Color: TColor): TColor32;
    … …  
    4852implementation
    4953
    50 { TPixel32 }
     54resourcestring
     55  SOutOfRange = 'Pixel pointer out of range';
     56  SWrongBitmapSize = 'Wrong bitmap size [width: %d, height: %d]';
     57
     58  { TPixel32 }
    5159
    5260procedure TPixel32.SetRGB(Color: TColor32);
    … …  
    97105end;
    98106
    99 function PixelPointer(Bitmap: TRasterImage; BaseX: Integer;
     107procedure TPixelPointer.CheckRange;
     108begin
     109  {$IFOPT R+}
     110  if (PByte(Pixel) < PByte(Data)) or
     111    (PByte(Pixel) >= PByte(Data) + (Width + Height * BytesPerLine) * BytesPerPixel) then
     112    raise Exception.Create(SOutOfRange);
     113  {$ENDIF}
     114end;
     115
     116class function TPixelPointer.Create(Bitmap: TRasterImage; BaseX: Integer;
    100117  BaseY: Integer): TPixelPointer;
    101118begin
     119  Result.Width := Bitmap.Width;
     120  Result.Height := Bitmap.Height;
     121  if (Result.Width < 0) or (Result.Height < 0) then
     122    raise Exception.Create(Format(SWrongBitmapSize, [Result.Width, Result.Height]));
    102123  Result.BytesPerLine := Bitmap.RawImage.Description.BytesPerLine;
    103124  Result.BytesPerPixel := Bitmap.RawImage.Description.BitsPerPixel shr 3;
     125  Result.Data := PPixel32(Bitmap.RawImage.Data);
    104126  Result.Base := PPixel32(Bitmap.RawImage.Data + BaseX * Result.BytesPerPixel +
    105127    BaseY * Result.BytesPerLine);
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