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Fully implemented TIM<->PNG converting. But it should be checked! Some other fixes.

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meffi@lab313.ru
2014-04-27 13:25:37 +00:00
parent 59bdb04762
commit 7ec4a64bc5
12 changed files with 421 additions and 314 deletions
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59
uexportimport.pas
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@@ -3,55 +3,44 @@ unit uexportimport;
interface
uses
FPWritePNG, zstream, udrawtim;
udrawtim;
procedure SaveImage(Surf: PDrawSurf; Indexed: Boolean; const FileName: string; PngWriter: TFPWriterPNG);
function LoadImage(const FileName: string; var Surf: PDrawSurf): Boolean;
function CreatePngWriter(ForExport: Boolean): TFPWriterPNG;
procedure SaveImage(const FileName: string; Surf: PDrawSurf; Indexed: Boolean);
function LoadImage(const FileName: string): PDrawSurf;
implementation
uses
FPReadPNG, Classes, BGRABitmap, FileUtil, sysutils;
FPReadPNG, Classes, BGRABitmap, FileUtil, sysutils, zstream, FPWritePNG;
function CreatePngWriter(ForExport: Boolean): TFPWriterPNG;
procedure SaveImage(const FileName: string; Surf: PDrawSurf; Indexed: Boolean);
var
Writer: TFPWriterPNG;
begin
Result := TFPWriterPNG.Create;
Result.CompressionLevel := clnone;
Result.WordSized := False;
Result.UseAlpha := (not ForExport);
Writer := TFPWriterPNG.Create;
Writer.CompressionLevel := clnone;
Writer.UseAlpha := True;
Writer.Indexed := Indexed;
Surf^.SaveToFileUTF8(FileName, Writer);
Writer.Free;
end;
procedure SaveImage(Surf: PDrawSurf; Indexed: Boolean; const FileName: string; PngWriter: TFPWriterPNG);
begin
PngWriter.Indexed := Indexed;
Surf^.SaveToFileUTF8(FileName, PngWriter);
end;
function LoadImage(const FileName: string; var Surf: PDrawSurf): Boolean;
function LoadImage(const FileName: string): PDrawSurf;
var
Reader: TFPReaderPNG;
Image: TFileStream;
Stream: TFileStream;
begin
Result := False;
try
Reader := TFPReaderPNG.Create;
Image := TFileStream.Create(UTF8ToSys(FileName), fmOpenRead or fmShareDenyWrite);
Result := Reader.CheckContents(Image);
Stream := TFileStream.Create(UTF8ToSys(FileName), fmOpenRead or fmShareDenyWrite);
Stream.Position := 0;
if Result then
begin
New(Surf);
Surf^ := TBGRABitmap.Create;
Image.Position := 0;
Surf^.LoadFromStream(Image);
end;
finally
Image.Free;
Reader.Free;
end;
New(Result);
Result^ := TBGRABitmap.Create;
Result^.UsePalette := True;
Reader.ImageRead(Stream, Result^);
Stream.Free;
Reader.Free;
end;
end.