diff options
Diffstat (limited to 'converter/other/pnmtosir.c')
| -rw-r--r-- | converter/other/pnmtosir.c | 153 |
1 files changed, 80 insertions, 73 deletions
diff --git a/converter/other/pnmtosir.c b/converter/other/pnmtosir.c index c8dec5b6..20bb6178 100644 --- a/converter/other/pnmtosir.c +++ b/converter/other/pnmtosir.c @@ -1,5 +1,5 @@ /* pnmtosir.c - read a portable anymap and produce a Solitaire Image Recorder -** file (MGI TYPE 11 or MGI TYPE 17) +** file (MGI TYPE 11 or MGI TYPE 17) ** ** Copyright (C) 1991 by Marvin Landis ** @@ -11,67 +11,63 @@ ** implied warranty. */ +#include <stdbool.h> #include "pnm.h" #define MAXCOLORS 256 -int main(int argc, char * argv[]) { - FILE* ifp; - xel** xels; - register xel* xP; - const char* dumpname; - int rows, cols, format, row, col; - int m, n; - int grayscale; + + +int +main(int argc, const char * argv[]) { + + FILE * ifP; + xel ** xels; + int rows, cols, format; + unsigned int n; + bool isGrayscale; xelval maxval; - const char* const usage = "[pnmfile]"; - unsigned char ub; unsigned short Header[16]; unsigned short LutHeader[16]; unsigned short Lut[2048]; - pnm_init( &argc, argv ); + pm_proginit(&argc, argv); - if ( argc > 2 ) - pm_usage( usage ); + if (argc-1 > 1) + pm_error("There is only one possible argument: the input file. " + "You specified %d", argc-1); - if ( argc == 2 ) - { - dumpname = argv[1]; - ifp = pm_openr( argv[1] ); - } - else - { - dumpname = "Standard Input"; - ifp = stdin; - } + if (argc-1 > 0) { + const char * const inputFileName = argv[1]; + ifP = pm_openr(inputFileName); + } else { + ifP = stdin; + } - xels = pnm_readpnm( ifp, &cols, &rows, &maxval, &format ); - pm_close( ifp ); + xels = pnm_readpnm(ifP, &cols, &rows, &maxval, &format); /* Figure out the colormap. */ - switch ( PNM_FORMAT_TYPE(format) ) - { - case PPM_TYPE: - grayscale = 0; - pm_message( "Writing a 24-bit SIR format (MGI TYPE 11)" ); + switch (PNM_FORMAT_TYPE(format) ) { + case PPM_TYPE: + isGrayscale = false; + pm_message("Writing a 24-bit SIR format (MGI TYPE 11)"); break; case PGM_TYPE: - grayscale = 1; - pm_message( "Writing a grayscale SIR format (MGI TYPE 17)" ); + isGrayscale = true; + pm_message("Writing a grayscale SIR format (MGI TYPE 17)"); break; - default: - grayscale = 1; - pm_message( "Writing a monochrome SIR format (MGI TYPE 17)" ); + default: + isGrayscale = true; + pm_message("Writing a monochrome SIR format (MGI TYPE 17)"); break; - } + } /* Set up the header. */ Header[0] = 0x3a4f; Header[1] = 0; - if (grayscale) + if (isGrayscale) Header[2] = 17; else Header[2] = 11; @@ -93,54 +89,65 @@ int main(int argc, char * argv[]) { LutHeader[2] = 5; LutHeader[3] = 256; LutHeader[4] = 256; - for (n = 0; n < 5; n++) + for (n = 0; n < 5; ++n) pm_writelittleshort(stdout,LutHeader[n]); - for (n = 5; n < 256; n++) + for (n = 5; n < 256; ++n) pm_writelittleshort(stdout,0); - for(n = 0; n < 3; n ++) - for (m = 0; m < 256; m++) + for (n = 0; n < 3; ++n) { + unsigned int m; + for (m = 0; m < 256; ++m) Lut[m * 4 + n] = m << 8; - for (n = 0; n < 1024; n++) + } + for (n = 0; n < 1024; ++n) pm_writelittleshort(stdout,Lut[n]); /* Finally, write out the data. */ - switch ( PNM_FORMAT_TYPE(format) ) - { - case PPM_TYPE: - for ( row = 0; row < rows; ++row ) - for ( col = 0, xP = xels[row]; col < cols; ++col, ++xP ) - { - ub = (char) ( PPM_GETR( *xP ) * ( 255 / maxval ) ); - fputc( ub, stdout ); + switch (PNM_FORMAT_TYPE(format)) { + case PPM_TYPE: { + unsigned int row; + for (row = 0; row < rows; ++row) { + unsigned int col; + for (col = 0; col < cols; ++col) { + unsigned char const ub = + (char) (PPM_GETR(xels[row][col]) * (255 / maxval)); + fputc(ub, stdout); } - for ( row = 0; row < rows; ++row ) - for ( col = 0, xP = xels[row]; col < cols; ++col, ++xP ) - { - ub = (char) ( PPM_GETG( *xP ) * ( 255 / maxval ) ); - fputc( ub, stdout ); + } + for (row = 0; row < rows; ++row) { + unsigned int col; + for (col = 0; col < cols; ++col) { + unsigned const char ub = + (char) (PPM_GETG(xels[row][col]) * (255 / maxval)); + fputc(ub, stdout); } - for ( row = 0; row < rows; ++row ) - for ( col = 0, xP = xels[row]; col < cols; ++col, ++xP ) - { - ub = (char) ( PPM_GETB( *xP ) * ( 255 / maxval ) ); - fputc( ub, stdout ); + } + for (row = 0; row < rows; ++row) { + unsigned int col; + for (col = 0; col < cols; ++col) { + unsigned const char ub = + (char) (PPM_GETB(xels[row][col]) * (255 / maxval)); + fputc(ub, stdout); } - break; + } + } break; - default: - for ( row = 0; row < rows; ++row ) - for ( col = 0, xP = xels[row]; col < cols; ++col, ++xP ) - { - register unsigned long val; - - val = PNM_GET1( *xP ); - ub = (char) ( val * ( 255 / maxval ) ); - fputc( ub, stdout ); + default: { + unsigned int row; + for (row = 0; row < rows; ++row) { + unsigned int col; + for (col = 0; col < cols; ++col) { + unsigned long const val = PNM_GET1(xels[row][col]); + unsigned const char ub = (char) (val * (255 / maxval)); + fputc(ub, stdout); } - break; + } + } break; } + + pm_close(ifP); - exit( 0 ); + return 0; } + |