138 lines
2.9 KiB
C++
138 lines
2.9 KiB
C++
/***************************/
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/*** TGA 2 Gfx Convertor ***/
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/***************************/
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//#include <windows.h>
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#include <stdlib.h>
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#include <stdarg.h>
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//#include <string.h>
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#include <stdio.h>
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//#include <time.h>
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//#include <math.h>
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#include <io.h>
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#include <fstream.h>
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#include <conio.h>
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//***************************************************************************
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struct sTgaHdr
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{
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char id; // 0
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char colmaptype; // 1
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char imagetype; // 2
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char fei[2]; // 3
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char cml[2]; // 5
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char cmes; // 7
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short xorig; // 8
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short yorig; // 10
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short width; // 12
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short height; // 14
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char depth; // 16
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char imagedesc; // 17
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};
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//***************************************************************************
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sTgaHdr *TGA;
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short *Buffer;
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char *InFile;
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char *OutFile;
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//***************************************************************************
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void Load()
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{
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FILE *File;
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int Size;
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File=fopen(InFile,"rb");
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fseek(File,0,SEEK_END);
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Size=ftell(File);
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fseek(File,0,SEEK_SET);
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if( (TGA=(sTgaHdr*)malloc(Size))==NULL ) {printf("Out of memory.\n");exit(123);}
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fread(TGA, 1,Size,File);
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fclose(File);
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if( (Buffer=(short*)malloc(TGA->width*TGA->height*sizeof(short)))==NULL ) {printf("Out of memory.\n");exit(123);}
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}
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//***************************************************************************
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void Process()
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{
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unsigned char *InSrc=(unsigned char*)TGA+sizeof(sTgaHdr);
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short *Dst=Buffer;
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/*
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printf("width %i\n",TGA->width);
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printf("height %i\n",TGA->height);
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printf("depth %i\n",TGA->depth);
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printf("imagedesc %i\n",TGA->imagedesc);
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*/
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for (int Y=0; Y<TGA->height; Y++)
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{
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unsigned char *Src=&InSrc[(TGA->height-Y-1)*(TGA->width*3)]; // Flip Image
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for (int X=0; X<TGA->width; X++)
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{
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int B=*Src++;
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int G=*Src++;
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int R=*Src++;
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if (TGA->depth==24)
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{
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R>>=(8-5);
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G>>=(8-5);
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B>>=(8-5);
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}
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*Dst=0;
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*Dst|=R<<0;
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*Dst|=G<<5;
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*Dst|=B<<10;
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Dst++;
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}
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}
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}
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//***************************************************************************
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void Write()
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{
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FILE *File;
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File=fopen(OutFile,"wb");
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fwrite(Buffer,TGA->width*TGA->height*sizeof(short),1,File);
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fclose(File);
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free(TGA);
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free(Buffer);
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}
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//***************************************************************************
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//***************************************************************************
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//***************************************************************************
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void Usage(char *ErrStr)
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{
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printf("\nTga2Gfx: by Dave\n");
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printf("Usage: Tga2Gfx <file> [ <file>.. ] [ switches.. ]\n");
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printf("Switches:\n");
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printf(" -o:[FILE] Set output File\n");
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printf("\nERROR: %s\n",ErrStr);
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exit(-1);
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}
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//***************************************************************************
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int main(int argc, char *argv[])
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{
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if (argc!=3) Usage("Incorrect Params");
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InFile=argv[1];
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OutFile=argv[2];
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Load();
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Process();
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Write();
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return(0);
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}
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