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CnC_Remastered_Collection/TIBERIANDAWN/WIN32LIB/ICONSET.CPP

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//
// Copyright 2020 Electronic Arts Inc.
//
// TiberianDawn.DLL and RedAlert.dll and corresponding source code is free
// software: you can redistribute it and/or modify it under the terms of
// the GNU General Public License as published by the Free Software Foundation,
// either version 3 of the License, or (at your option) any later version.
// TiberianDawn.DLL and RedAlert.dll and corresponding source code is distributed
// in the hope that it will be useful, but with permitted additional restrictions
// under Section 7 of the GPL. See the GNU General Public License in LICENSE.TXT
// distributed with this program. You should have received a copy of the
// GNU General Public License along with permitted additional restrictions
// with this program. If not, see https://github.com/electronicarts/CnC_Remastered_Collection
/***************************************************************************
** 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 **
***************************************************************************
* *
* Project Name : Library *
* *
* File Name : ICONSET.C *
* *
* Programmer : Joe L. Bostic *
* *
* Start Date : June 9, 1991 *
* *
* Last Update : September 15, 1993 [JLB] *
* *
*-------------------------------------------------------------------------*
* Functions: *
* Load_Icon_Set -- Loads an icons set and initializes it. *
* Free_Icon_Set -- Frees allocations made by Load_Icon_Set(). *
* - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - */
//#include "function.h"
//#define _WIN32
//#define WIN32_LEAN_AND_MEAN
#include <dos.h>
#include <stdlib.h>
#include <stdio.h>
//#include <mem.h>
#include <wwstd.h>
#include <file.h>
#include "tile.h"
#include <iff.h>
// Misc? ST - 1/3/2019 10:40AM
//extern int Misc;
int Misc;
void * Load_Icon_Set(char const *filename, void *iconsetptr, long buffsize);
void Free_Icon_Set(void const *iconset);
long Get_Icon_Set_Size(void const *iconset);
int Get_Icon_Set_Width(void const *iconset);
int Get_Icon_Set_Height(void const *iconset);
void * Get_Icon_Set_Icondata(void const *iconset);
void * Get_Icon_Set_Trans(void const *iconset);
void * Get_Icon_Set_Remapdata(void const *iconset);
void * Get_Icon_Set_Palettedata(void const *iconset);
int Get_Icon_Set_Count(void const *iconset);
void * Get_Icon_Set_Map(void const *iconset);
//#define ICON_PALETTE_BYTES 16
//#define ICON_MAX 256
/***************************************************************************
** The terrain is rendered by using icons. These are the buffers that hold
** the icon data, remap tables, and remap index arrays.
*/
//PRIVATE char *IconPalette = NULL; // MCGA only.
//PRIVATE char *IconRemap = NULL; // MCGA only.
#define FORM_RPAL MAKE_ID('R','P','A','L')
#define FORM_RTBL MAKE_ID('R','T','B','L')
#define FORM_SSET MAKE_ID('S','S','E','T')
#define FORM_SINF MAKE_ID('S','I','N','F')
#define FORM_ICON MAKE_ID('I','C','O','N')
#define FORM_TRNS MAKE_ID('T','R','N','S')
#define FORM_MAP MAKE_ID('M','A','P',' ')
/***************************************************************************
* LOAD_ICON_SET -- Loads an icons set and initializes it. *
* *
* This routine will load an IFF icon set from disk. It handles all *
* of the necessary allocations. *
* *
* INPUT: filename -- Name of the icon file. *
* *
* buffer -- Pointer to paragraph aligned buffer to hold data. *
* *
* size -- Size of the buffer (in bytes). *
* *
* OUTPUT: none *
* *
* WARNINGS: In EEGA mode the iconset buffer will be free because the *
* icons will have been transferred to card ram. *
* *
* HISTORY: *
* 06/21/1991 JLB : Created. *
* 07/01/1991 JLB : Determines icon size from file. *
* 07/15/1991 JLB : Load and uncompress onto the same buffer. *
* 09/15/1993 JLB : Added EMS support. *
*=========================================================================*/
void * Load_Icon_Set(char const *filename, void *iconsetptr, long buffsize)
{
int fh; // File handle of iconset.
int bytespericon; // The number of bytes per icon.
unsigned long icons=0; // Number of icons loaded.
unsigned long size; // Size of the icon chunk (raw).
unsigned long transsize;
void *transptr=NULL;
unsigned long mapsize; // Icon map chunk size.
void *mapptr=NULL; // Icon map pointer.
void *returnptr=NULL; // Iconset pointer returned by routine.
BOOL allocated=FALSE; // Was the iconset block allocated?
IControl_Type *idata=NULL; // Icon data loaded.
long id; // ID of file openned.
struct {
char Width; // Width of icon in bytes.
char Height; // Height of icon in bytes.
char Format; // Graphic mode.
//lint -esym(754,Format)
char Bitplanes; // Number of bitplanes per icon.
} sinf;
/*
** Open the icon set for loading. If it is not a legal icon set
** data file, then abort.
*/
fh = Open_Iff_File(filename);
if (fh != WW_ERROR) {
Read_File(fh, &id, sizeof(long));
if (id == FORM_ICON) {
/*
** Determine the size of the icons and set up the graphic
** system accordingly. Also get the sizes of the various
** data blocks that have to be loaded.
*/
Read_Iff_Chunk(fh, FORM_SINF, &sinf, sizeof(sinf));
bytespericon = ((((int)sinf.Width)<<3)*(((int)sinf.Height)<<3)*(int)sinf.Bitplanes)>>3;
size = Get_Iff_Chunk_Size(fh,FORM_SSET);
transsize = Get_Iff_Chunk_Size(fh, FORM_TRNS);
mapsize = Get_Iff_Chunk_Size(fh, FORM_MAP);
/*
** Allocate the icon buffer if one isn't provided. First try EMS and
** then try conventional RAM.
*/
allocated = FALSE;
if (!iconsetptr) {
buffsize = size + transsize + mapsize + sizeof(IControl_Type);
Misc = buffsize;
iconsetptr = Alloc(buffsize, MEM_NORMAL);
allocated = (iconsetptr != NULL);
}
if (iconsetptr && (size+transsize+mapsize+sizeof(IControl_Type)) <= (unsigned long)buffsize) {
idata = (IControl_Type *)iconsetptr;
memset(idata, 0, sizeof(IControl_Type));
/*
** Initialize the iconset header structure.
*/
idata->Width = (short)(((short)sinf.Width)<<3);
idata->Height = (short)(((short)sinf.Height)<<3);
idata->Allocated = (short)allocated;
idata->Icons = (unsigned char *)iconsetptr + sizeof(IControl_Type);
idata->Map = (unsigned char *) (idata->Icons + size);
idata->TransFlag = sizeof(IControl_Type) + size + mapsize;
idata->Size = buffsize;
{
long val;
val = Read_Iff_Chunk(fh, FORM_SSET, Add_Long_To_Pointer(iconsetptr, sizeof(IControl_Type)), size);
icons = (int)(val/(long)bytespericon);
idata = (IControl_Type *)iconsetptr;
}
if (mapsize) {
icons = mapsize;
}
idata->Count = (short)icons;
/*
** Limit buffer to only the size needed. This is done AFTER loading of the
** raw icon data because it might have been compressed and thus need any
** extra space to perform an overlapped decompression.
*/
if ((unsigned long)buffsize > size + transsize + mapsize + sizeof(IControl_Type)) {
buffsize = size + transsize + mapsize + sizeof(IControl_Type);
}
transptr = Add_Long_To_Pointer(iconsetptr, idata->TransFlag);
Read_Iff_Chunk(fh, FORM_TRNS, transptr, transsize);
idata = (IControl_Type *)iconsetptr;
mapptr = (void*)idata->Map;
Read_Iff_Chunk(fh, FORM_MAP, mapptr, mapsize);
/*
** Let the graphic overlay know of the icon data. This could involve
** translation and other data manipulations.
*/
//Init_Stamps(iconsetptr);
returnptr = iconsetptr;
}
}
Close_Iff_File(fh);
}
return (returnptr); // Return with icon pointer.
}
/***************************************************************************
* FREE_ICON_SET -- Frees allocations made by Load_Icon_Set(). *
* *
* This routine is used to free up any allocations by Load_Icon_Set(). *
* Use this routine when a new icon set is to be loaded. *
* *
* INPUT: none *
* *
* OUTPUT: none *
* *
* WARNINGS: none *
* *
* HISTORY: *
* 06/21/1991 JLB : Created. *
*=========================================================================*/
void Free_Icon_Set(void const *iconset)
{
IControl_Type *icontrol;
icontrol = (IControl_Type *)iconset;
if (icontrol) {
if (icontrol->Allocated) {
Free((void *)iconset);
}
}
}
long Get_Icon_Set_Size(void const *iconset)
{
IControl_Type *icontrol;
long size=0;
icontrol = (IControl_Type *)iconset;
if (icontrol) {
size = icontrol->Size;
}
return(size);
}
int Get_Icon_Set_Width(void const *iconset)
{
IControl_Type *icontrol;
int width=0;
icontrol = (IControl_Type *)iconset;
if (icontrol) {
width = icontrol->Width;
}
return(width);
}
int Get_Icon_Set_Height(void const *iconset)
{
IControl_Type *icontrol;
int height=0;
icontrol = (IControl_Type *)iconset;
if (icontrol) {
height = icontrol->Height;
}
return(height);
}
void * Get_Icon_Set_Icondata(void const *iconset)
{
IControl_Type *icontrol;
icontrol = (IControl_Type *)iconset;
if (icontrol)
return(Add_Long_To_Pointer(iconset, (LONG)icontrol->Icons));
return(NULL);
}
void * Get_Icon_Set_Trans(void const *iconset)
{
IControl_Type *icontrol;
void *ptr=NULL;
icontrol = (IControl_Type *)iconset;
if (icontrol) {
ptr = Add_Long_To_Pointer((void *)iconset, icontrol->TransFlag);
}
return(ptr);
}
int Get_Icon_Set_Count(void const *iconset)
{
IControl_Type *icontrol;
int count;
icontrol = (IControl_Type *)iconset;
if (icontrol) {
count = icontrol->Count;
}
return(count);
}
void * Get_Icon_Set_Map(void const *iconset)
{
IControl_Type *icontrol;
icontrol = (IControl_Type *)iconset;
if (icontrol)
return(Add_Long_To_Pointer(iconset, (LONG)icontrol->Map));
return(NULL);
}
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