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232 lines
8.8 KiB
ObjectPascal
232 lines
8.8 KiB
ObjectPascal
{
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This file is part of the Free Pascal run time library.
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Copyright (c) 2004 Karoly Balogh for Genesi S.a.r.l. <www.genesi.lu>
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layers.library interface unit for MorphOS/PowerPC
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Based on work of Nils Sjoholm member of the Amiga RTL
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development team.
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MorphOS port was done on a free Pegasos II/G4 machine
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provided by Genesi S.a.r.l. <www.genesi.lu>
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************}
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{$PACKRECORDS 2}
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unit layers;
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interface
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uses exec, graphics, utility;
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const
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LAYERSIMPLE = 1;
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LAYERSMART = 2;
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LAYERSUPER = 4;
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LAYERUPDATING = $10;
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LAYERBACKDROP = $40;
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LAYERREFRESH = $80;
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LAYER_CLIPRECTS_LOST = $100; { during BeginUpdate }
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{ or during layerop }
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{ this happens if out of memory }
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LMN_REGION = -1;
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type
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pLayer_Info = ^tLayer_Info;
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tLayer_Info = packed record
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top_layer : pLayer;
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check_lp : pLayer; { !! Private !! }
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obs : pClipRect;
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FreeClipRects : pClipRect; { !! Private !! }
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PrivateReserve1, { !! Private !! }
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PrivateReserve2 : Longint; { !! Private !! }
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Lock : tSignalSemaphore; { !! Private !! }
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gs_Head : tMinList; { !! Private !! }
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PrivateReserve3 : smallint; { !! Private !! }
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PrivateReserve4 : Pointer; { !! Private !! }
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Flags : WORD;
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fatten_count : Shortint; { !! Private !! }
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LockLayersCount : Shortint; { !! Private !! }
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PrivateReserve5 : smallint; { !! Private !! }
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BlankHook, { !! Private !! }
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LayerInfo_extra : Pointer; { !! Private !! }
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end;
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const
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NEWLAYERINFO_CALLED = 1;
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{
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* LAYERS_NOBACKFILL is the value needed to get no backfill hook
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* LAYERS_BACKFILL is the value needed to get the default backfill hook
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}
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LAYERS_NOBACKFILL = 1;
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LAYERS_BACKFILL = 0;
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LAYERSNAME : PChar = 'layers.library';
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var
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LayersBase : PLibrary;
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procedure InitLayers(li : pLayer_Info location 'a0');
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SysCall LayersBase 030;
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function CreateUpfrontLayer(li : pLayer_Info location 'a0'; bm : pBitMap location 'a1'; x0 : LongInt location 'd0'; y0 : LongInt location 'd1'; x1 : LongInt location 'd2'; y1 : LongInt location 'd3'; flags : LongInt location 'd4'; bm2 : pBitMap location 'a2') : pLayer;
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SysCall LayersBase 036;
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function CreateBehindLayer(li : pLayer_Info location 'a0'; bm : pBitMap location 'a1'; x0 : LongInt location 'd0'; y0 : LongInt location 'd1'; x1 : LongInt location 'd2'; y1 : LongInt location 'd3'; flags : LongInt location 'd4'; bm2 : pBitMap location 'a2') : pLayer;
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SysCall LayersBase 042;
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function UpfrontLayer(dummy : LongInt location 'a0'; layer : pLayer location 'a1') : LongInt;
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SysCall LayersBase 048;
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function BehindLayer(dummy : LongInt location 'a0'; layer : pLayer location 'a1') : LongInt;
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SysCall LayersBase 054;
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function MoveLayer(dummy : LongInt location 'a0'; layer : pLayer location 'a1'; dx : LongInt location 'd0'; dy : LongInt location 'd1') : LongInt;
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SysCall LayersBase 060;
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function SizeLayer(dummy : LongInt location 'a0'; layer : pLayer location 'a1'; dx : LongInt location 'd0'; dy : LongInt location 'd1') : LongInt;
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SysCall LayersBase 066;
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procedure ScrollLayer(dummy : LongInt location 'a0'; layer : pLayer location 'a1'; dx : LongInt location 'd0'; dy : LongInt location 'd1');
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SysCall LayersBase 072;
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function BeginUpdate(l : pLayer location 'a0') : LongInt;
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SysCall LayersBase 078;
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procedure EndUpdate(layer : pLayer location 'a0'; flag : CARDINAL location 'd0');
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SysCall LayersBase 084;
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function DeleteLayer(dummy : LongInt location 'a0'; layer : pLayer location 'a1') : LongInt;
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SysCall LayersBase 090;
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procedure LockLayer(dummy : LongInt location 'a0'; layer : pLayer location 'a1');
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SysCall LayersBase 096;
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procedure UnlockLayer(layer : pLayer location 'a0');
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SysCall LayersBase 102;
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procedure LockLayers(li : pLayer_Info location 'a0');
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SysCall LayersBase 108;
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procedure UnlockLayers(li : pLayer_Info location 'a0');
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SysCall LayersBase 114;
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procedure LockLayerInfo(li : pLayer_Info location 'a0');
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SysCall LayersBase 120;
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procedure SwapBitsRastPortClipRect(rp : pRastPort location 'a0'; cr : pClipRect location 'a1');
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SysCall LayersBase 126;
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function WhichLayer(li : pLayer_Info location 'a0'; x : LongInt location 'd0'; y : LongInt location 'd1') : pLayer;
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SysCall LayersBase 132;
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procedure UnlockLayerInfo(li : pLayer_Info location 'a0');
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SysCall LayersBase 138;
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function NewLayerInfo : pLayer_Info;
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SysCall LayersBase 144;
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procedure DisposeLayerInfo(li : pLayer_Info location 'a0');
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SysCall LayersBase 150;
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function FattenLayerInfo(li : pLayer_Info location 'a0') : LongInt;
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SysCall LayersBase 156;
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procedure ThinLayerInfo(li : pLayer_Info location 'a0');
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SysCall LayersBase 162;
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function MoveLayerInFrontOf(layer_to_move : pLayer location 'a0'; other_layer : pLayer location 'a1') : LongInt;
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SysCall LayersBase 168;
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function InstallClipRegion(layer : pLayer location 'a0'; CONST region : pRegion location 'a1') : pRegion;
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SysCall LayersBase 174;
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function MoveSizeLayer(layer : pLayer location 'a0'; dx : LongInt location 'd0'; dy : LongInt location 'd1'; dw : LongInt location 'd2'; dh : LongInt location 'd3') : LongInt;
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SysCall LayersBase 180;
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function CreateUpfrontHookLayer(li : pLayer_Info location 'a0'; bm : pBitMap location 'a1'; x0 : LongInt location 'd0'; y0 : LongInt location 'd1'; x1 : LongInt location 'd2'; y1 : LongInt location 'd3'; flags : LongInt location 'd4'; hook : pHook location 'a3'; bm2 : pBitMap location 'a2') : pLayer;
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SysCall LayersBase 186;
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function CreateBehindHookLayer(li : pLayer_Info location 'a0'; bm : pBitMap location 'a1'; x0 : LongInt location 'd0'; y0 : LongInt location 'd1'; x1 : LongInt location 'd2'; y1 : LongInt location 'd3'; flags : LongInt location 'd4'; hook : pHook location 'a3'; bm2 : pBitMap location 'a2') : pLayer;
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SysCall LayersBase 192;
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function InstallLayerHook(layer : pLayer location 'a0'; hook : pHook location 'a1') : pHook;
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SysCall LayersBase 198;
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function InstallLayerInfoHook(li : pLayer_Info location 'a0'; CONST hook : pHook location 'a1') : pHook;
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SysCall LayersBase 204;
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procedure SortLayerCR(layer : pLayer location 'a0'; dx : LongInt location 'd0'; dy : LongInt location 'd1');
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SysCall LayersBase 210;
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procedure DoHookClipRects(hook : pHook location 'a0'; rport : pRastPort location 'a1'; CONST rect : pRectangle location 'a2');
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SysCall LayersBase 216;
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function InstallTransparentRegion(l : pLayer location 'a0'; r : pRegion location 'a1') : pRegion;
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SysCall LayersBase 222;
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function InstallTransparentRegionHook(l : pLayer location 'a0'; h : pHook location 'a1') : pHook;
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SysCall LayersBase 228;
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function CreateUpfrontLayerTagList(li : pLayer_Info location 'a0'; bm : pBitMap location 'a1'; x0 : LongInt location 'd0'; y0 : LongInt location 'd1'; x1 : LongInt location 'd2'; y1 : LongInt location 'd3'; flags : LongInt location 'd4'; taglist : pTagItem location 'a2') : pLayer;
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SysCall LayersBase 234;
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function CreateBehindLayerTagList(li : pLayer_Info location 'a0'; bm : pBitMap location 'a1'; x0 : LongInt location 'd0'; y0 : LongInt location 'd1'; x1 : LongInt location 'd2'; y1 : LongInt location 'd3'; flags : LongInt location 'd4'; taglist : pTagItem location 'a2') : pLayer;
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SysCall LayersBase 240;
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{
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Functions and procedures with array of const go here
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}
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{
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function CreateUpfrontLayerTags(li : pLayer_Info; bm : pBitMap; x0 : LongInt; y0 : LongInt; x1 : LongInt; y1 : LongInt; flags : LongInt; const taglist : Array Of Const) : pLayer;
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function CreateBehindLayerTags(li : pLayer_Info; bm : pBitMap; x0 : LongInt; y0 : LongInt; x1 : LongInt; y1 : LongInt; flags : LongInt; const taglist : Array Of Const) : pLayer;
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}
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{ Helper func }
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function InitLayersLibrary : boolean;
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implementation
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const
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{ Change VERSION and LIBVERSION to proper values }
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VERSION : string[2] = '50';
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LIBVERSION : longword = 50;
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var
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layers_exit : Pointer;
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procedure CloseLayersLibrary;
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begin
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ExitProc := layers_exit;
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if LayersBase <> nil then begin
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CloseLibrary(LayersBase);
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LayersBase := nil;
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end;
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end;
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function InitLayersLibrary : boolean;
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begin
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LayersBase := nil;
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LayersBase := OpenLibrary(LAYERSNAME,LIBVERSION);
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if LayersBase <> nil then begin
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layers_exit := ExitProc;
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ExitProc := @CloseLayersLibrary;
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InitLayersLibrary:=True;
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end else begin
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InitLayersLibrary:=False;
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end;
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end;
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end.
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