/*************************************************************************** pbmpage This program produces a printed page test pattern in PBM format. This was adapted from Tim Norman's 'pbmtpg' program, part of his 'pbm2ppa' package, by Bryan Henderson on 2000.05.01. The only change was to make it use the Netpbm libraries to generate the output. For copyright and licensing information, see the pbmtoppa program, which was also derived from the same package. ****************************************************************************/ #include #include #include #include #include "pm_c_util.h" #include "pbm.h" /* US is 8.5 in by 11 in */ #define USWIDTH (5100) #define USHEIGHT (6600) /* A4 is 210 mm by 297 mm == 8.27 in by 11.69 in */ #define A4WIDTH (4960) #define A4HEIGHT (7016) struct bitmap { unsigned int Width; /* width and height in 600ths of an inch */ unsigned int Height; bit ** bitmap; }; static struct bitmap bitmap; static void setpixel(unsigned int const x, unsigned int const y, unsigned int const c) { char const bitmask = 128 >> (x % 8); if (x < 0 || x >= bitmap.Width) return; if (y < 0 || y >= bitmap.Height) return; if (c) bitmap.bitmap[y][x/8] |= bitmask; else bitmap.bitmap[y][x/8] &= ~bitmask; } static void setplus(unsigned int const x, unsigned int const y, unsigned int const s) { /*---------------------------------------------------------------------------- Draw a black plus sign centered at (x,y) with arms 's' pixels long. Leave the exact center of the plus white. -----------------------------------------------------------------------------*/ unsigned int i; for (i = 0; i < s; ++i) { setpixel(x+i, y, 1); setpixel(x-i, y, 1); setpixel(x, y+i, 1); setpixel(x, y-i, 1); } } static void setblock(unsigned int const x, unsigned int const y, unsigned int const s) { unsigned int i; for (i = 0; i < s; ++i) { unsigned int j; for (j = 0; j < s; ++j) setpixel(x+i, y+j, 1); } } static void setchar(unsigned int const x, unsigned int const y, char const c) { static char const charmap[10][5]= { { 0x3e, 0x41, 0x41, 0x41, 0x3e }, { 0x00, 0x42, 0x7f, 0x40, 0x00 }, { 0x42, 0x61, 0x51, 0x49, 0x46 }, { 0x22, 0x41, 0x49, 0x49, 0x36 }, { 0x18, 0x14, 0x12, 0x7f, 0x10 }, { 0x27, 0x45, 0x45, 0x45, 0x39 }, { 0x3e, 0x49, 0x49, 0x49, 0x32 }, { 0x01, 0x01, 0x61, 0x19, 0x07 }, { 0x36, 0x49, 0x49, 0x49, 0x36 }, { 0x26, 0x49, 0x49, 0x49, 0x3e } }; if (c <= '9' && c >= '0') { unsigned int xo; for (xo = 0; xo < 5; ++xo) { unsigned int yo; for (yo = 0; yo < 8; ++yo) { if ((charmap[c-'0'][xo] >> yo) & 0x01) setblock(x + xo*3, y + yo*3, 3); } } } } static void setstring(unsigned int const x, unsigned int const y, const char * const s) { const char * p; unsigned int xo; for (xo = 0, p = s; *p; xo += 21, ++p) setchar(x + xo, y, *p); } static void setCG(unsigned int const x, unsigned int const y) { unsigned int xo; for (xo = 0; xo <= 50; ++xo) { unsigned int const yo = sqrt(SQR(50.0) - SQR(xo)); unsigned int zo; setpixel(x + xo, y + yo, 1); setpixel(x+yo, y + xo, 1); setpixel(x-1-xo, y-1-yo, 1); setpixel(x-1-yo, y-1-xo, 1); setpixel(x+xo, y-1-yo, 1); setpixel(x-1-xo, y+yo, 1); for(zo = 0; zo < yo; ++zo) { setpixel(x + xo, y-1-zo, 1); setpixel(x-1-xo, y+zo, 1); } } } static void outputPbm(FILE * const ofP, struct bitmap const bitmap) { /*---------------------------------------------------------------------------- Create a pbm file containing the image from the global variable bitmap[]. -----------------------------------------------------------------------------*/ int const forceplain = 0; unsigned int row; pbm_writepbminit(ofP, bitmap.Width, bitmap.Height, forceplain); for (row = 0; row < bitmap.Height; ++row) { pbm_writepbmrow_packed(ofP, bitmap.bitmap[row], bitmap.Width, forceplain); } } static void framePerimeter(unsigned int const Width, unsigned int const Height) { unsigned int x, y; /* Top edge */ for (x = 0; x < Width; ++x) setpixel(x, 0, 1); /* Bottom edge */ for (x = 0; x < Width; ++x) setpixel(x, Height-1, 1); /* Left edge */ for (y = 0; y < Height; ++y) setpixel(0, y, 1); /* Right edge */ for (y = 0; y < Height; ++y) setpixel(Width-1, y, 1); } int main(int argc, const char** argv) { int TP; unsigned int x, y; char buf[128]; /* width and height in 600ths of an inch */ unsigned int Width; unsigned int Height; pm_proginit(&argc, argv); if (argc > 1 && strcmp(argv[1], "-a4") == 0) { Width = A4WIDTH; Height = A4HEIGHT; --argc; ++argv; } else { Width = USWIDTH; Height = USHEIGHT; } if (argc > 1) TP = atoi(argv[1]); else TP = 1; bitmap.Width = Width; bitmap.Height = Height; bitmap.bitmap = pbm_allocarray_packed(Width, bitmap.Height); for (y = 0; y < bitmap.Height; ++y) { unsigned int x; for (x = 0; x < pbm_packed_bytes(bitmap.Width); ++x) bitmap.bitmap[y][x] = 0x00; } switch (TP) { case 1: framePerimeter(Width, Height); for (x = 0; x < Width; x += 100) { unsigned int y; for(y = 0; y < Height; y += 100) setplus(x, y, 4); } for(x = 0; x < Width; x += 100) { sprintf(buf,"%d", x); setstring(x + 3, (Height/200) * 100 + 3, buf); } for (y = 0; y < Height; y += 100) { sprintf(buf, "%d", y); setstring((Width/200) * 100 + 3, y + 3, buf); } for (x = 0; x < Width; x += 10) for (y = 0; y < Height; y += 100) setplus(x, y, ((x%100) == 50) ? 2 : 1); for (x = 0; x < Width; x += 100) { unsigned int y; for (y = 0; y < Height; y += 10) setplus(x, y, ((y%100) == 50) ? 2 : 1); } setCG(Width/2, Height/2); break; case 2: for (y = 0; y < 300; ++y) setpixel(Width/2, Height/2-y, 1); break; case 3: for (y = 0; y < 300; ++y) { setpixel(y, y, 1); setpixel(Width-1-y, Height-1-y, 1); } break; default: pm_error("unknown test pattern (%d)", TP); } outputPbm(stdout, bitmap); pbm_freearray(bitmap.bitmap, Height); pm_close(stdout); return 0; }