diff options
Diffstat (limited to 'converter/ppm/ppmtopj.c')
| -rw-r--r-- | converter/ppm/ppmtopj.c | 480 |
1 files changed, 249 insertions, 231 deletions
diff --git a/converter/ppm/ppmtopj.c b/converter/ppm/ppmtopj.c index d116773f..8fe6c05d 100644 --- a/converter/ppm/ppmtopj.c +++ b/converter/ppm/ppmtopj.c @@ -1,4 +1,4 @@ -/* ppmtopj.c - convert a portable pixmap to an HP PainJetXL image +/* ppmtopj.c - convert a PPM to an HP PainJetXL image ** ** Copyright (C) 1990 by Christos Zoulas (christos@ee.cornell.edu) ** @@ -12,245 +12,263 @@ #include <string.h> +#include "mallocvar.h" #include "nstring.h" #include "ppm.h" -static int compress_row ARGS((unsigned char *op, unsigned char *oe, unsigned char *cp)); /* * XXX: Only 8.5 x 11 paper */ -#define WIDTH 8.5 -#define HEIGHT 11.0 -#define DPI 180 -#define XPIX ((int) ((DPI * WIDTH + 7) / 8) << 3) -#define YPIX ((int) ((DPI * HEIGHT + 7) / 8) << 3) - -#define C_RESET "\033E" -#define C_RENDER "\033*t%dJ" -# define C_RENDER_NONE 0 -# define C_RENDER_SNAP 1 -# define C_RENDER_BW 2 -# define C_RENDER_DITHER 3 -# define C_RENDER_DIFFUSE 4 -# define C_RENDER_MONODITHER 5 -# define C_RENDER_MONODIFFUSE 6 -# define C_RENDER_MONO_CL_DITHER 5 -# define C_RENDER_MONO_CL_DIFFUSE 6 -#define C_BACK_SCALE "\033*t%dK" -# define C_BACK_SCALE_LIGHT 0 -# define C_BACK_SCALE_DARK 1 -#define C_GAMMA "\033*t%dI" -#define C_IMAGE_WIDTH "\033*r%dS" -#define C_IMAGE_HEIGHT "\033*r%dT" -#define C_DATA_PLANES "\033*r%dU" -#define C_TRANS_MODE "\033*b%dM" -# define C_TRANS_MODE_STD 0 -# define C_TRANS_MODE_RLE 1 -# define C_TRANS_MODE_TIFF 2 -#define C_SEND_PLANE "\033*b%dV" -#define C_LAST_PLANE "\033*b%dW" -#define C_BEGIN_RASTER "\033*r%dA" -# define C_BEGIN_RASTER_MARGIN 0 -# define C_BEGIN_RASTER_ACTIVE 1 -# define C_BEGIN_RASTER_NOSCALE 0 -# define C_BEGIN_RASTER_SCALE 2 -#define C_END_RASTER "\033*r%dC" -# define C_END_RASTER_UNUSED 0 -#define C_RESOLUTION "\033*t%dR" -# define C_RESOLUTION_90DPI 90 -# define C_RESOLUTION_180DPI 180 -#define C_MOVE_X "\033*p+%dX" -#define C_MOVE_Y "\033*p+%dY" - -static const char * const rmode[] = { - "none", "snap", "bw", "dither", "diffuse", - "monodither", "monodiffuse", "clusterdither", - "monoclusterdither", NULL +#define WIDTH 8.5 +#define HEIGHT 11.0 +#define DPI 180 +#define XPIX ((int) ((DPI * WIDTH + 7) / 8) << 3) +#define YPIX ((int) ((DPI * HEIGHT + 7) / 8) << 3) + +#define C_RESET "\033E" +#define C_RENDER "\033*t%dJ" +# define C_RENDER_NONE 0 +# define C_RENDER_SNAP 1 +# define C_RENDER_BW 2 +# define C_RENDER_DITHER 3 +# define C_RENDER_DIFFUSE 4 +# define C_RENDER_MONODITHER 5 +# define C_RENDER_MONODIFFUSE 6 +# define C_RENDER_MONO_CL_DITHER 5 +# define C_RENDER_MONO_CL_DIFFUSE 6 +#define C_BACK_SCALE "\033*t%dK" +# define C_BACK_SCALE_LIGHT 0 +# define C_BACK_SCALE_DARK 1 +#define C_GAMMA "\033*t%dI" +#define C_IMAGE_WIDTH "\033*r%dS" +#define C_IMAGE_HEIGHT "\033*r%dT" +#define C_DATA_PLANES "\033*r%dU" +#define C_TRANS_MODE "\033*b%dM" +# define C_TRANS_MODE_STD 0 +# define C_TRANS_MODE_RLE 1 +# define C_TRANS_MODE_TIFF 2 +#define C_SEND_PLANE "\033*b%dV" +#define C_LAST_PLANE "\033*b%dW" +#define C_BEGIN_RASTER "\033*r%dA" +# define C_BEGIN_RASTER_MARGIN 0 +# define C_BEGIN_RASTER_ACTIVE 1 +# define C_BEGIN_RASTER_NOSCALE 0 +# define C_BEGIN_RASTER_SCALE 2 +#define C_END_RASTER "\033*r%dC" +# define C_END_RASTER_UNUSED 0 +#define C_RESOLUTION "\033*t%dR" +# define C_RESOLUTION_90DPI 90 +# define C_RESOLUTION_180DPI 180 +#define C_MOVE_X "\033*p+%dX" +#define C_MOVE_Y "\033*p+%dY" + +static const char * const rmode[] = { + "none", + "snap", + "bw", + "dither", + "diffuse", + "monodither", + "monodiffuse", + "clusterdither", + "monoclusterdither", + NULL }; -/* - * Run-length encoding for the PaintJet. We have pairs of <instances> - * <value>, where instances goes from 0 (meaning one instance) to 255 - * If we are unlucky we can double the size of the image. - */ -static int -compress_row(op, oe, cp) -unsigned char *op, *oe, *cp; -{ - unsigned char *ce = cp; - while ( op < oe ) { - unsigned char px = *op++; - unsigned char *pr = op; - while ( op < oe && *op == px && op - pr < 255) op++; - *ce++ = op - pr; - *ce++ = px; + + +static void +compressRow(const unsigned char * const opArg, + const unsigned char * const oe, + unsigned char * const cp, + int * const szP) { +/*---------------------------------------------------------------------------- + Run-length encoding for the PaintJet. We have pairs of <instances> <value>, + where instances goes from 0 (meaning one instance) to 255 If we are unlucky + we can double the size of the image. +-----------------------------------------------------------------------------*/ + unsigned char * ce; + const unsigned char * op; + + for (op = opArg, ce = cp; op < oe; ) { + unsigned char const px = *op++; + const unsigned char * const pr = op; + + while (op < oe && *op == px && op - pr < 255) + ++op; + + *ce++ = op - pr; + *ce++ = px; } - return ce - cp; + *szP = ce - cp; } -int main(argc, argv) -int argc; -char *argv[]; -{ - pixel **pixels; - FILE *ifp; - int argn, rows, cols, r, c, k, p; - pixval maxval; - unsigned char *obuf, *op, *cbuf; - int render_mode = C_RENDER_NONE; - int back_scale = C_BACK_SCALE_DARK; - int gamma = 0; - int mode = C_TRANS_MODE_STD; - int center = 0; - int xoff = 0, yoff = 0; - /* - * XXX: Someday we could make this command line options. - */ - int posscale = C_BEGIN_RASTER_MARGIN | C_BEGIN_RASTER_NOSCALE; - int resolution = C_RESOLUTION_180DPI; - - const char * const usage = "[-center] [-xpos <pos>] [-ypos <pos>] [-gamma <val>] [-back <dark|lite>] [-rle] [-render <none|snap|bw|dither|diffuse|monodither|monodiffuse|clusterdither|monoclusterdither>] [ppmfile]"; - - - ppm_init( &argc, argv ); - - argn = 1; - while ( argn < argc && argv[argn][0] == '-' && argv[argn][1] != '\0' ) - { - if ( pm_keymatch(argv[argn],"-render",2) && argn + 1 < argc ) - { - ++argn; - for (r = 0; rmode[r] != NULL; r++) - if (streq(rmode[r], argv[argn])) - break; - if (rmode[r] != NULL) - render_mode = r; - else - pm_usage(usage); - } - else if ( pm_keymatch(argv[argn],"-back",2) && argn + 1 < argc ) - { - ++argn; - if (streq(argv[argn], "dark")) - back_scale = C_BACK_SCALE_DARK; - else if (streq(argv[argn], "lite")) - back_scale = C_BACK_SCALE_LIGHT; - else - pm_usage(usage); - } - else if ( pm_keymatch(argv[argn],"-gamma",2) && argn + 1 < argc ) - { - ++argn; - if ( sscanf( argv[argn], "%d",&gamma ) != 1 ) - pm_usage( usage ); - } - else if ( pm_keymatch(argv[argn],"-xpos",2) && argn + 1 < argc ) - { - ++argn; - if ( sscanf( argv[argn], "%d",&xoff ) != 1 ) - pm_usage( usage ); - } - else if ( pm_keymatch(argv[argn],"-ypos",2) && argn + 1 < argc ) - { - ++argn; - if ( sscanf( argv[argn], "%d",&yoff ) != 1 ) - pm_usage( usage ); - } - else if (pm_keymatch(argv[argn],"-rle",2)) - mode = C_TRANS_MODE_RLE; - else if (pm_keymatch(argv[argn],"-center",2)) - center = 1; - else - pm_usage( usage ); - ++argn; - } - - if ( argn < argc ) - { - ifp = pm_openr( argv[argn] ); - ++argn; - } - else - ifp = stdin; - - if ( argn != argc ) - pm_usage( usage ); - - pixels = ppm_readppm( ifp, &cols, &rows, &maxval ); - - pm_close( ifp ); - obuf = (unsigned char *) pm_allocrow(cols, sizeof(unsigned char)); - cbuf = (unsigned char *) pm_allocrow(cols * 2, sizeof(unsigned char)); - - if (cols > XPIX || rows > YPIX) - pm_message("image too large for page"); - if (center) { - if (xoff || yoff) - pm_error("cannot specify both center and position"); - xoff = (XPIX - cols) / 2; - yoff = (YPIX - rows) / 2; - } - - (void) printf(C_RESET); - /* - * Set the resolution before begin raster otherwise it - * does not work. - */ - (void) printf(C_RESOLUTION, resolution); - (void) printf(C_BEGIN_RASTER, posscale); - if (xoff) - (void) printf(C_MOVE_X, xoff); - if (yoff) - (void) printf(C_MOVE_Y, yoff); - (void) printf(C_TRANS_MODE, mode); - (void) printf(C_RENDER, render_mode); - (void) printf(C_BACK_SCALE, back_scale); - (void) printf(C_GAMMA, gamma); - (void) printf(C_IMAGE_WIDTH, cols); - (void) printf(C_IMAGE_HEIGHT, rows); - (void) printf(C_DATA_PLANES, 3); - - for (r = 0; r < rows; r++) - /* for each primary */ - for (p = 0; p < 3; p++) { - switch (p) { - case 0: - for (c = 0, op = &obuf[-1]; c < cols; c++) { - if ((k = (c & 7)) == 0) - *++op = 0; - if (PPM_GETR(pixels[r][c]) > maxval / 2) - *op |= 1 << (7 - k); - } - break; - case 1: - for (c = 0, op = &obuf[-1]; c < cols; c++) { - if ((k = (c & 7)) == 0) - *++op = 0; - if (PPM_GETG(pixels[r][c]) > maxval / 2) - *op |= 1 << (7 - k); - } - break; - case 2: - for (c = 0, op = &obuf[-1]; c < cols; c++) { - if ((k = (c & 7)) == 0) - *++op = 0; - if (PPM_GETB(pixels[r][c]) > maxval / 2) - *op |= 1 << (7 - k); - } - break; - } - ++op; - if (mode == C_TRANS_MODE_RLE) { - k = compress_row(obuf, op, cbuf); - op = cbuf; - } - else { - k = op - obuf; - op = obuf; - } - (void) printf(p == 2 ? C_LAST_PLANE : C_SEND_PLANE, k); - (void) fwrite(op, 1, k, stdout); - } - (void) printf(C_END_RASTER, C_END_RASTER_UNUSED); - exit(0); + + +int +main(int argc, const char ** argv) { + + pixel ** pixels; + FILE * ifP; + int argn, rows, cols, k; + unsigned int row; + pixval maxval; + unsigned char *obuf, *op, *cbuf; + int render_mode = C_RENDER_NONE; + int back_scale = C_BACK_SCALE_DARK; + int gamma = 0; + int mode = C_TRANS_MODE_STD; + int center = 0; + int xoff = 0, yoff = 0; + /* + * XXX: Someday we could make this command line options. + */ + int const posscale = C_BEGIN_RASTER_MARGIN | C_BEGIN_RASTER_NOSCALE; + int const resolution = C_RESOLUTION_180DPI; + + const char * const usage = "[-center] [-xpos <pos>] [-ypos <pos>] [-gamma <val>] [-back <dark|lite>] [-rle] [-render <none|snap|bw|dither|diffuse|monodither|monodiffuse|clusterdither|monoclusterdither>] [ppmfile]"; + + + pm_proginit( &argc, argv ); + + argn = 1; + while ( argn < argc && argv[argn][0] == '-' && argv[argn][1] != '\0' ) + { + if ( pm_keymatch(argv[argn],"-render",2) && argn + 1 < argc ) + { + unsigned int r; + ++argn; + for (r = 0; rmode[r] != NULL; r++) + if (streq(rmode[r], argv[argn])) + break; + if (rmode[r] != NULL) + render_mode = r; + else + pm_usage(usage); + } + else if ( pm_keymatch(argv[argn],"-back",2) && argn + 1 < argc ) + { + ++argn; + if (streq(argv[argn], "dark")) + back_scale = C_BACK_SCALE_DARK; + else if (streq(argv[argn], "lite")) + back_scale = C_BACK_SCALE_LIGHT; + else + pm_usage(usage); + } + else if ( pm_keymatch(argv[argn],"-gamma",2) && argn + 1 < argc ) + { + ++argn; + if ( sscanf( argv[argn], "%d",&gamma ) != 1 ) + pm_usage( usage ); + } + else if ( pm_keymatch(argv[argn],"-xpos",2) && argn + 1 < argc ) + { + ++argn; + if ( sscanf( argv[argn], "%d",&xoff ) != 1 ) + pm_usage( usage ); + } + else if ( pm_keymatch(argv[argn],"-ypos",2) && argn + 1 < argc ) + { + ++argn; + if ( sscanf( argv[argn], "%d",&yoff ) != 1 ) + pm_usage( usage ); + } + else if (pm_keymatch(argv[argn],"-rle",2)) + mode = C_TRANS_MODE_RLE; + else if (pm_keymatch(argv[argn],"-center",2)) + center = 1; + else + pm_usage( usage ); + ++argn; + } + + if ( argn < argc ) + { + ifP = pm_openr( argv[argn] ); + ++argn; + } + else + ifP = stdin; + + if ( argn != argc ) + pm_usage( usage ); + + pixels = ppm_readppm(ifP, &cols, &rows, &maxval); + + pm_close(ifP); + + MALLOCARRAY_NOFAIL(obuf, cols); + + if (cols > UINT_MAX / 2) + pm_error("Image too wide (%u columns) for computation", cols); + + MALLOCARRAY_NOFAIL(cbuf, cols * 2); + + if (cols > XPIX || rows > YPIX) + pm_message("image too large for page"); + + if (center) { + if (xoff || yoff) + pm_error("cannot specify both center and position"); + xoff = (XPIX - cols) / 2; + yoff = (YPIX - rows) / 2; + } + + printf(C_RESET); + /* + * Set the resolution before begin raster otherwise it + * does not work. + */ + printf(C_RESOLUTION, resolution); + printf(C_BEGIN_RASTER, posscale); + if (xoff) + printf(C_MOVE_X, xoff); + if (yoff) + printf(C_MOVE_Y, yoff); + printf(C_TRANS_MODE, mode); + printf(C_RENDER, render_mode); + printf(C_BACK_SCALE, back_scale); + printf(C_GAMMA, gamma); + printf(C_IMAGE_WIDTH, cols); + printf(C_IMAGE_HEIGHT, rows); + printf(C_DATA_PLANES, 3); + + for (row = 0; row < rows; ++row) { + /* for each primary */ + unsigned int plane; + for (plane = 0; plane < 3; ++plane) { + unsigned int col; + + for (col = 0, op = &obuf[-1]; col < cols; ++col) { + pixel const p = pixels[row][col]; + pixval const comp = + plane == 0 ? PPM_GETR(p) : + plane == 1 ? PPM_GETG(p) : + plane == 2 ? PPM_GETB(p) : + 0; /* can't happen */ + + if ((k = (col & 0x7)) == 0) + *++op = 0; + if (comp > maxval / 2) + *op |= 1 << (7 - k); + } + ++op; + if (mode == C_TRANS_MODE_RLE) { + compressRow(obuf, op, cbuf, &k); + op = cbuf; + } else { + k = op - obuf; + op = obuf; + } + printf(plane == 2 ? C_LAST_PLANE : C_SEND_PLANE, k); + fwrite(op, 1, k, stdout); + } + } + printf(C_END_RASTER, C_END_RASTER_UNUSED); + + exit(0); } + + + |