Initial Source Code commit
Initial commit of original Tiberian Dawn and Red Alert source code converted to build as DLLs, and compatible with the release version of Command & Conquer Remastered.
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359
REDALERT/WIN32LIB/GETSHAPE.CPP
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REDALERT/WIN32LIB/GETSHAPE.CPP
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//
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// Copyright 2020 Electronic Arts Inc.
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//
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
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// software: you can redistribute it and/or modify it under the terms of
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// the GNU General Public License as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
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// in the hope that it will be useful, but with permitted additional restrictions
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// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
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// distributed with this program. You should have received a copy of the
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// GNU General Public License along with permitted additional restrictions
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// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
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/***************************************************************************
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** C O N F I D E N T I A L --- W E S T W O O D A S S O C I A T E S **
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***************************************************************************
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* *
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* Project Name : Westwood Library *
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* *
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* File Name : GETSHAPE.CPP *
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* *
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* Programmer : Joe L. Bostic *
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* *
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* Start Date : April 5, 1992 *
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* *
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* Last Update : May 25, 1994 [BR] *
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* *
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*-------------------------------------------------------------------------*
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* Functions: *
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* Get_Shape_Size -- Fetch the size of the shape in memory. *
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* Get_Shape_Uncomp_Size -- gets shape's uncompressed size in bytes *
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* Get_Shape_Data -- retrieves a shape's special prefix data *
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* Extract_Shape_Count -- returns # of shapes in the given shape block *
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* Extract_Shape -- Gets pointer to shape in given shape block *
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* Get_Shape_Width -- gets shape width in pixels *
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* Get_Shape_Height -- gets shape height in pixels *
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* Set_Shape_Height -- modifies shape's height *
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* Restore_Shape_Height -- restores a shape to its original height *
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* Get_Shape_Original_Height -- gets shape's unmodified height *
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* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
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/*
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********************************* Includes **********************************
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*/
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#include "wwstd.h"
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#include "shape.h"
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/***************************************************************************
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* Get_Shape_Size -- Fetch the size of the shape in memory. *
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* *
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* The shape size returned includes both the shape header & its data. *
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* *
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* INPUT: *
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* shape pointer to shape *
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* *
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* OUTPUT: *
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* shape's size in memory *
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* *
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* WARNINGS: *
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* none *
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* *
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* HISTORY: *
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* 06/09/1992 JLB : Created. *
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* 08/19/1993 SKB : Split drawshp.asm into several modules. *
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* 05/25/1994 BR : Converted to 32-bit *
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*=========================================================================*/
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int cdecl Get_Shape_Size(VOID const *shape)
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{
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Shape_Type *shp = (Shape_Type *)shape;
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/*
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------------------------- Return if NULL pointer -------------------------
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*/
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if (!shape)
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return(0);
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/*
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-------------------------- Returns shape's size --------------------------
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*/
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return (shp->ShapeSize);
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} /* end of Get_Shape_Size */
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/***************************************************************************
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* Get_Shape_Uncomp_Size -- gets shape's uncompressed size in bytes *
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* *
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* INPUT: *
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* shape pointer to shape *
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* *
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* OUTPUT: *
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* shape's size in bytes when uncompressed *
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* *
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* WARNINGS: *
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* none *
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* *
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* HISTORY: *
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* 06/09/1992 JLB : Created. *
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* 08/19/1993 SKB : Split drawshp.asm into several modules. *
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* 05/25/1994 BR : Converted to 32-bit *
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*=========================================================================*/
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int Get_Shape_Uncomp_Size(VOID const *shape)
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{
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Shape_Type *shp = (Shape_Type *)shape;
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return (shp->DataLength);
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} /* end of Get_Shape_Uncomp_Size */
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/***************************************************************************
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* Get_Shape_Data -- retrieves a shape's special prefix data *
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* *
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* MAKESHPS.EXE can store special data values along with a shape. These *
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* values are inserted in the shape table >before< the shape's header. *
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* So, this routine uses the 'data' parameter as a negative index from *
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* the given shape pointer. *
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* *
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* INPUT: *
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* shape pointer to shape *
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* data index of WORD data value to get *
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* *
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* OUTPUT: *
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* data value *
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* *
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* WARNINGS: *
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* The shape pointer must be a pointer into a shape table created by *
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* MAKESHPS.EXE; it >cannot< be a pointer to shape returned by Make_Shape! *
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* *
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* HISTORY: *
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* 06/09/1992 JLB : Created. *
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* 08/19/1993 SKB : Split drawshp.asm into several modules. *
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* 05/25/1994 BR : Converted to 32-bit *
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*=========================================================================*/
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WORD cdecl Get_Shape_Data(VOID const *shape, WORD data)
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{
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WORD *word_ptr = (WORD *)shape;
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WORD retval;
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retval = *(word_ptr - (data+1));
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return (retval);
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} /* end of Get_Shape_Data */
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/***************************************************************************
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* Extract_Shape_Count -- returns # of shapes in the given shape block *
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* *
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* The # of shapes in a shape block is the first WORD in the block, so *
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* this is the value returned. *
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* *
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* INPUT: *
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* buffer pointer to shape block, created with MAKESHPS.EXE *
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* *
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* OUTPUT: *
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* # shapes in the block *
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* *
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* WARNINGS: *
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* none *
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* *
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* HISTORY: *
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* 06/09/1992 JLB : Created. *
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* 08/19/1993 SKB : Split drawshp.asm into several modules. *
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* 05/25/1994 BR : Converted to 32-bit *
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*=========================================================================*/
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int cdecl Extract_Shape_Count(VOID const *buffer)
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{
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ShapeBlock_Type *block = (ShapeBlock_Type *)buffer;
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return (block->NumShapes);
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} /* end of Extract_Shape_Count */
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/***************************************************************************
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* Extract_Shape -- Gets pointer to shape in given shape block *
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* *
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* INPUT: *
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* buffer pointer to shape block, created with MAKESHPS.EXE *
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* shape index of shape to get *
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* *
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* OUTPUT: *
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* pointer to shape in the shape block *
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* *
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* WARNINGS: *
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* none *
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* *
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* HISTORY: *
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* 06/09/1992 JLB : Created. *
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* 08/19/1993 SKB : Split drawshp.asm into several modules. *
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* 05/25/1994 BR : Converted to 32-bit *
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*=========================================================================*/
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VOID * cdecl Extract_Shape(VOID const *buffer, int shape)
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{
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ShapeBlock_Type *block = (ShapeBlock_Type*) buffer;
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//PG int numshapes; // Number of shapes
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long offset; // Offset of shape data, from start of block
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char *bytebuf = (char*) buffer;
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/*
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----------------------- Return if invalid argument -----------------------
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*/
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if (!buffer || shape < 0 || shape >= block->NumShapes)
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return(NULL);
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offset = block->Offsets[shape];
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return(bytebuf + 2 + offset);
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} /* end of Extract_Shape */
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/***************************************************************************
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* Get_Shape_Width -- gets shape width in pixels *
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* *
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* INPUT: *
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* shape pointer to a shape *
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* *
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* OUTPUT: *
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* shape width in pixels *
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* *
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* WARNINGS: *
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* none *
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* *
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* HISTORY: *
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* 06/09/1992 JLB : Created. *
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* 08/19/1993 SKB : Split drawshp.asm into several modules. *
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* 05/25/1994 BR : Converted to 32-bit *
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*=========================================================================*/
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int Get_Shape_Width(VOID const *shape)
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{
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Shape_Type *shp = (Shape_Type *)shape;
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return (shp->Width);
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} /* end of Get_Shape_Width */
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/***************************************************************************
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* Get_Shape_Height -- gets shape height in pixels *
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* *
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* INPUT: *
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* shape pointer to a shape *
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* *
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* OUTPUT: *
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* shape height in pixels *
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* *
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* WARNINGS: *
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* none *
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* *
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* HISTORY: *
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* 06/09/1992 JLB : Created. *
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* 08/19/1993 SKB : Split drawshp.asm into several modules. *
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* 05/25/1994 BR : Converted to 32-bit *
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*=========================================================================*/
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int Get_Shape_Height(VOID const *shape)
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{
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Shape_Type *shp = (Shape_Type *)shape;
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return (shp->Height);
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} /* end of Get_Shape_Height */
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/***************************************************************************
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* Set_Shape_Height -- modifies shape's height *
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* *
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* The new height must be shorter than the original height. This effect *
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* chops off the lower portion of the shape, like it's sinking into the *
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* ground. *
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* *
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* INPUT: *
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* shape pointer to a shape *
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* newheight new shape height *
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* *
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* OUTPUT: *
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* old shape height *
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* *
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* WARNINGS: *
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* none *
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* *
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* HISTORY: *
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* 06/09/1992 JLB : Created. *
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* 08/19/1993 SKB : Split drawshp.asm into several modules. *
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* 05/25/1994 BR : Converted to 32-bit *
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*=========================================================================*/
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int cdecl Set_Shape_Height(VOID const *shape, WORD newheight)
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{
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Shape_Type *shp = (Shape_Type *)shape;
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WORD oldheight;
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oldheight = shp->Height;
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shp->Height = newheight;
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return(oldheight);
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} /* end of Set_Shape_Height */
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/***************************************************************************
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* Restore_Shape_Height -- restores a shape to its original height *
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* *
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* INPUT: *
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* shape pointer to a shape *
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* *
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* OUTPUT: *
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* old shape height *
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* *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 06/09/1992 JLB : Created. *
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* 08/19/1993 SKB : Split drawshp.asm into several modules. *
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* 05/25/1994 BR : Converted to 32-bit *
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*=========================================================================*/
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int cdecl Restore_Shape_Height(VOID *shape)
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{
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Shape_Type *shp = (Shape_Type *)shape;
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WORD oldheight;
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oldheight = shp->Height;
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shp->Height = shp->OriginalHeight;
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return(oldheight);
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} /* end of Restore_Shape_Height */
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/***************************************************************************
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* Get_Shape_Original_Height -- gets shape's unmodified height *
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* *
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* INPUT: *
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* shape pointer to a shape *
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* *
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* OUTPUT: *
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* shape's unmodified height *
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* *
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* WARNINGS: *
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* none *
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* *
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* HISTORY: *
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* 06/09/1992 JLB : Created. *
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* 08/19/1993 SKB : Split drawshp.asm into several modules. *
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* 05/25/1994 BR : Converted to 32-bit *
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*=========================================================================*/
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int Get_Shape_Original_Height(VOID const *shape)
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{
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Shape_Type *shp = (Shape_Type *)shape;
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return (shp->OriginalHeight);
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} /* end of Get_Shape_Original_Height */
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/************************* end of getshape.cpp *****************************/
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