tweak fftester to upscale everything to 24bits...

to flush out color index problems

Change-Id: Ifc7a56e0938eb10d82dc880e94ac09062d239ce1
diff --git a/vcl/workben/fftester.cxx b/vcl/workben/fftester.cxx
index 13acc9a..dda8367 100644
--- a/vcl/workben/fftester.cxx
+++ b/vcl/workben/fftester.cxx
@@ -106,42 +106,54 @@ try_again:
                GDIMetaFile aGDIMetaFile;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) ReadWindowMetafile(aFileStream, aGDIMetaFile);
                BitmapEx aTarget;
                aGDIMetaFile.CreateThumbnail(aTarget);
            }
            else if (strcmp(argv[2], "jpg") == 0)
            {
                Graphic aGraphic;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) ImportJPEG(aFileStream, aGraphic, nullptr, GraphicFilterImportFlags::NONE);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "gif") == 0)
            {
                SvFileStream aFileStream(out, StreamMode::READ);
                Graphic aGraphic;
                ret = (int) ImportGIF(aFileStream, aGraphic);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "xbm") == 0)
            {
                Graphic aGraphic;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) ImportXBM(aFileStream, aGraphic);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "xpm") == 0)
            {
                Graphic aGraphic;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) ImportXPM(aFileStream, aGraphic);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "png") == 0)
            {
                SvFileStream aFileStream(out, StreamMode::READ);
                vcl::PNGReader aReader(aFileStream);
                aReader.Read();
                BitmapEx aTarget = aReader.Read();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "bmp") == 0)
            {
                Bitmap aTarget;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) ReadDIB(aTarget, aFileStream, true);
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "svm") == 0)
            {
@@ -160,9 +172,11 @@ try_again:
                        aLibrary.getFunctionSymbol("GraphicImport"));
                    aLibrary.release();
                }
                Graphic aTarget;
                Graphic aGraphic;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) (*pfnImport)(aFileStream, aTarget, nullptr);
                ret = (int) (*pfnImport)(aFileStream, aGraphic, nullptr);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "dxf") == 0)
            {
@@ -175,9 +189,11 @@ try_again:
                        aLibrary.getFunctionSymbol("GraphicImport"));
                    aLibrary.release();
                }
                Graphic aTarget;
                Graphic aGraphic;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) (*pfnImport)(aFileStream, aTarget, nullptr);
                ret = (int) (*pfnImport)(aFileStream, aGraphic, nullptr);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "met") == 0)
            {
@@ -190,9 +206,11 @@ try_again:
                        aLibrary.getFunctionSymbol("GraphicImport"));
                    aLibrary.release();
                }
                Graphic aTarget;
                Graphic aGraphic;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) (*pfnImport)(aFileStream, aTarget, nullptr);
                ret = (int) (*pfnImport)(aFileStream, aGraphic, nullptr);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if ((strcmp(argv[2], "pbm") == 0) || strcmp(argv[2], "ppm") == 0)
            {
@@ -205,9 +223,11 @@ try_again:
                        aLibrary.getFunctionSymbol("GraphicImport"));
                    aLibrary.release();
                }
                Graphic aTarget;
                Graphic aGraphic;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) (*pfnImport)(aFileStream, aTarget, nullptr);
                ret = (int) (*pfnImport)(aFileStream, aGraphic, nullptr);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "psd") == 0)
            {
@@ -220,9 +240,11 @@ try_again:
                        aLibrary.getFunctionSymbol("GraphicImport"));
                    aLibrary.release();
                }
                Graphic aTarget;
                Graphic aGraphic;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) (*pfnImport)(aFileStream, aTarget, nullptr);
                ret = (int) (*pfnImport)(aFileStream, aGraphic, nullptr);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "eps") == 0)
            {
@@ -235,9 +257,11 @@ try_again:
                        aLibrary.getFunctionSymbol("GraphicImport"));
                    aLibrary.release();
                }
                Graphic aTarget;
                Graphic aGraphic;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) (*pfnImport)(aFileStream, aTarget, nullptr);
                ret = (int) (*pfnImport)(aFileStream, aGraphic, nullptr);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "pct") == 0)
            {
@@ -250,9 +274,11 @@ try_again:
                        aLibrary.getFunctionSymbol("GraphicImport"));
                    aLibrary.release();
                }
                Graphic aTarget;
                Graphic aGraphic;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) (*pfnImport)(aFileStream, aTarget, nullptr);
                ret = (int) (*pfnImport)(aFileStream, aGraphic, nullptr);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "pcx") == 0)
            {
@@ -265,9 +291,11 @@ try_again:
                        aLibrary.getFunctionSymbol("GraphicImport"));
                    aLibrary.release();
                }
                Graphic aTarget;
                Graphic aGraphic;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) (*pfnImport)(aFileStream, aTarget, nullptr);
                ret = (int) (*pfnImport)(aFileStream, aGraphic, nullptr);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "ras") == 0)
            {
@@ -280,9 +308,11 @@ try_again:
                        aLibrary.getFunctionSymbol("GraphicImport"));
                    aLibrary.release();
                }
                Graphic aTarget;
                Graphic aGraphic;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) (*pfnImport)(aFileStream, aTarget, nullptr);
                ret = (int) (*pfnImport)(aFileStream, aGraphic, nullptr);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "tga") == 0)
            {
@@ -295,9 +325,11 @@ try_again:
                        aLibrary.getFunctionSymbol("GraphicImport"));
                    aLibrary.release();
                }
                Graphic aTarget;
                Graphic aGraphic;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) (*pfnImport)(aFileStream, aTarget, nullptr);
                ret = (int) (*pfnImport)(aFileStream, aGraphic, nullptr);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if (strcmp(argv[2], "tif") == 0)
            {
@@ -310,9 +342,11 @@ try_again:
                        aLibrary.getFunctionSymbol("GraphicImport"));
                    aLibrary.release();
                }
                Graphic aTarget;
                Graphic aGraphic;
                SvFileStream aFileStream(out, StreamMode::READ);
                ret = (int) (*pfnImport)(aFileStream, aTarget, nullptr);
                ret = (int) (*pfnImport)(aFileStream, aGraphic, nullptr);
                BitmapEx aTarget = aGraphic.GetBitmapEx();
                aTarget.Convert(BMP_CONVERSION_24BIT);
            }
            else if ( (strcmp(argv[2], "doc") == 0) ||
                      (strcmp(argv[2], "ww8") == 0) ||