mirror of
https://github.com/isometimes/rpi4-osdev
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Added printf functionality in wgtprn.c, exercised in samples/wgt41.c
This commit is contained in:
Adam Greenwood-Byrne
parent
aacc63d586
commit
6f2d5352b1
4 changed files with 546 additions and 6 deletions
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@ -1,6 +1,6 @@
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#include "mb.h"
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#define NULL 0
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#define NULL ((void*)0)
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#define rgb(i,r,g,b) (i<<24)|(r<<16)|(g<<8)|b
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typedef struct {
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@ -159,3 +159,6 @@ void msetbut (short event, short bnum);
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void msetbounds (short x1, short y1, short x2, short y2);
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void noclick();
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void wxorbox (short x, short y, short x2, short y2, unsigned char col);
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short wgettextwidth (char *string, wgtfont font);
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short wgettextheight (char *string, wgtfont font);
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void wgtprintf (short x, short y, wgtfont font, const char *fmt, ...);
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@ -38,20 +38,38 @@ void getch(void) {
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// ######## WGT EXAMPLES ########
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void wgt37()
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void wgt41()
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{
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set_clock_rate(get_max_clock());
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mem_init();
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vga256 (); /* Initialize graphics mode */
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start_core2(minit); // Start the comms engine (core 2)
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while (!comms_up); // Wait for comms up
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char *message = malloc(15);
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message[0] = 'H';
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message[1] = 'e';
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message[2] = 'l';
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message[3] = 'l';
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message[4] = 'o';
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message[5] = ' ';
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message[6] = 'w';
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message[7] = 'o';
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message[8] = 'r';
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message[9] = 'l';
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message[10] = 'd';
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message[11] = '!';
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message[12] = '\0';
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mdeinit (); /* Deinitialize the mouse handler */
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wtextcolor (vgapal[15]);
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wgtprintf (0, 0, NULL, "%s", message);
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wgtprintf (0, 8, NULL, "String width : %i pixels", wgettextwidth (message, NULL));
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wgtprintf (0, 16, NULL, "String height: %i pixels", wgettextheight (message, NULL));
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getch ();
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}
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void main()
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{
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wgt37();
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wgt41();
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while (1);
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}
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440
part12-wgt/wgt/wgtprn.c
Normal file
440
part12-wgt/wgt/wgtprn.c
Normal file
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@ -0,0 +1,440 @@
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/* Copyright (c) 1986, 1988, 1991, 1993
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* The Regents of the University of California. All rights reserved.
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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)subr_prf.c 8.3 (Berkeley) 1/21/94
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*/
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#include "../include/wgt.h"
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#include "../include/mem.h"
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typedef unsigned long size_t;
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typedef long ssize_t;
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#ifdef __64BIT__
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typedef unsigned long long uintmax_t;
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typedef long long intmax_t;
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#else
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typedef unsigned int uintmax_t;
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typedef int intmax_t;
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#endif
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typedef unsigned char u_char;
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typedef unsigned int u_int;
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typedef unsigned long u_long;
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typedef unsigned short u_short;
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typedef unsigned long long u_quad_t;
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typedef long long quad_t;
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typedef unsigned long uintptr_t;
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typedef long ptrdiff_t;
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#define NBBY 8 /* number of bits in a byte */
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char const hex2ascii_data[] = "0123456789abcdefghijklmnopqrstuvwxyz";
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#define hex2ascii(hex) (hex2ascii_data[hex])
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#define va_list __builtin_va_list
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#define va_start __builtin_va_start
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#define va_arg __builtin_va_arg
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#define va_end __builtin_va_end
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#define toupper(c) ((c) - 0x20 * (((c) >= 'a') && ((c) <= 'z')))
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/* Max number conversion buffer length: a u_quad_t in base 2, plus NUL byte. */
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#define MAXNBUF (sizeof(intmax_t) * NBBY + 1)
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/*
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* Put a NUL-terminated ASCII number (base <= 36) in a buffer in reverse
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* order; return an optional length and a pointer to the last character
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* written in the buffer (i.e., the first character of the string).
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* The buffer pointed to by `nbuf' must have length >= MAXNBUF.
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*/
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static char *
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ksprintn(char *nbuf, uintmax_t num, int base, int *lenp, int upper)
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{
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char *p, c;
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p = nbuf;
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*p = '\0';
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do {
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c = hex2ascii(num % base);
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*++p = upper ? toupper(c) : c;
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} while (num /= base);
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if (lenp)
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*lenp = p - nbuf;
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return (p);
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}
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/*
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* Scaled down version of printf(3).
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*
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* Two additional formats:
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*
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* The format %b is supported to decode error registers.
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* Its usage is:
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*
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* printf("reg=%b\n", regval, "*");
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*
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* where is the output base expressed as a control character, e.g.
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* \10 gives octal; \20 gives hex. Each arg is a sequence of characters,
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* the first of which gives the bit number to be inspected (origin 1), and
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* the next characters (up to a control character, i.e. a character <= 32),
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* give the name of the register. Thus:
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*
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* kvprintf("reg=%b\n", 3, "\10\2BITTWO\1BITONE\n");
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*
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* would produce output:
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*
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* reg=3
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*
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* XXX: %D -- Hexdump, takes pointer and separator string:
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* ("%6D", ptr, ":") -> XX:XX:XX:XX:XX:XX
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* ("%*D", len, ptr, " " -> XX XX XX XX ...
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*/
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int
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kvprintf(char const *fmt, void (*func)(int, void*), void *arg, int radix, va_list ap)
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{
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#define PCHAR(c) {int cc=(c); if (func) (*func)(cc,arg); else *d++ = cc; retval++; }
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char nbuf[MAXNBUF];
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char *d;
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const char *p, *percent, *q;
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u_char *up;
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int ch, n;
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uintmax_t num;
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int base, lflag, qflag, tmp, width, ladjust, sharpflag, neg, sign, dot;
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int cflag, hflag, jflag, tflag, zflag;
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int dwidth, upper;
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char padc;
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int stop = 0, retval = 0;
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num = 0;
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if (!func)
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d = (char *) arg;
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else
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d = NULL;
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if (fmt == NULL)
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fmt = "(fmt null)\n";
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if (radix < 2 || radix > 36)
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radix = 10;
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for (;;) {
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padc = ' ';
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width = 0;
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while ((ch = (u_char)*fmt++) != '%' || stop) {
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if (ch == '\0')
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return (retval);
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PCHAR(ch);
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}
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percent = fmt - 1;
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qflag = 0; lflag = 0; ladjust = 0; sharpflag = 0; neg = 0;
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sign = 0; dot = 0; dwidth = 0; upper = 0;
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cflag = 0; hflag = 0; jflag = 0; tflag = 0; zflag = 0;
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reswitch: switch (ch = (u_char)*fmt++) {
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case '.':
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dot = 1;
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goto reswitch;
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case '#':
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sharpflag = 1;
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goto reswitch;
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case '+':
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sign = 1;
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goto reswitch;
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case '-':
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ladjust = 1;
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goto reswitch;
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case '%':
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PCHAR(ch);
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break;
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case '*':
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if (!dot) {
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width = va_arg(ap, int);
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if (width < 0) {
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ladjust = !ladjust;
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width = -width;
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}
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} else {
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dwidth = va_arg(ap, int);
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}
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goto reswitch;
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case '0':
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if (!dot) {
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padc = '0';
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goto reswitch;
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}
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case '1': case '2': case '3': case '4':
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case '5': case '6': case '7': case '8': case '9':
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for (n = 0;; ++fmt) {
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n = n * 10 + ch - '0';
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ch = *fmt;
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if (ch < '0' || ch > '9')
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break;
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}
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if (dot)
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dwidth = n;
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else
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width = n;
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goto reswitch;
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case 'b':
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num = (u_int)va_arg(ap, int);
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p = va_arg(ap, char *);
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for (q = ksprintn(nbuf, num, *p++, NULL, 0); *q;)
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PCHAR(*q--);
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if (num == 0)
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break;
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for (tmp = 0; *p;) {
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n = *p++;
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if (num & (1 << (n - 1))) {
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PCHAR(tmp ? ',' : '<');
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for (; (n = *p) > ' '; ++p)
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PCHAR(n);
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tmp = 1;
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} else
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for (; *p > ' '; ++p)
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continue;
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}
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if (tmp)
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PCHAR('>');
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break;
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case 'c':
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PCHAR(va_arg(ap, int));
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break;
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case 'D':
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up = va_arg(ap, u_char *);
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p = va_arg(ap, char *);
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if (!width)
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width = 16;
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while(width--) {
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PCHAR(hex2ascii(*up >> 4));
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PCHAR(hex2ascii(*up & 0x0f));
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up++;
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if (width)
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for (q=p;*q;q++)
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PCHAR(*q);
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}
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break;
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case 'd':
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case 'i':
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base = 10;
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sign = 1;
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goto handle_sign;
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case 'h':
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if (hflag) {
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hflag = 0;
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cflag = 1;
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} else
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hflag = 1;
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goto reswitch;
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case 'j':
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jflag = 1;
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goto reswitch;
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case 'l':
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if (lflag) {
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lflag = 0;
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qflag = 1;
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} else
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lflag = 1;
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goto reswitch;
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case 'n':
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if (jflag)
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*(va_arg(ap, intmax_t *)) = retval;
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else if (qflag)
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*(va_arg(ap, quad_t *)) = retval;
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else if (lflag)
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*(va_arg(ap, long *)) = retval;
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else if (zflag)
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*(va_arg(ap, size_t *)) = retval;
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else if (hflag)
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*(va_arg(ap, short *)) = retval;
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else if (cflag)
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*(va_arg(ap, char *)) = retval;
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else
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*(va_arg(ap, int *)) = retval;
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break;
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case 'o':
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base = 8;
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goto handle_nosign;
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case 'p':
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base = 16;
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sharpflag = (width == 0);
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sign = 0;
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num = (uintptr_t)va_arg(ap, void *);
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goto number;
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case 'q':
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qflag = 1;
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goto reswitch;
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case 'r':
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base = radix;
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if (sign)
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goto handle_sign;
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goto handle_nosign;
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case 's':
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p = va_arg(ap, char *);
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if (p == NULL)
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p = "(null)";
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if (!dot)
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n = strlen (p);
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else
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for (n = 0; n < dwidth && p[n]; n++)
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continue;
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width -= n;
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if (!ladjust && width > 0)
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while (width--)
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PCHAR(padc);
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while (n--)
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PCHAR(*p++);
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if (ladjust && width > 0)
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while (width--)
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PCHAR(padc);
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break;
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case 't':
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tflag = 1;
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goto reswitch;
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case 'u':
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base = 10;
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goto handle_nosign;
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case 'X':
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upper = 1;
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case 'x':
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base = 16;
|
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goto handle_nosign;
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case 'y':
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base = 16;
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sign = 1;
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goto handle_sign;
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case 'z':
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zflag = 1;
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goto reswitch;
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handle_nosign:
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sign = 0;
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if (jflag)
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num = va_arg(ap, uintmax_t);
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else if (qflag)
|
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num = va_arg(ap, u_quad_t);
|
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else if (tflag)
|
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num = va_arg(ap, ptrdiff_t);
|
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else if (lflag)
|
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num = va_arg(ap, u_long);
|
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else if (zflag)
|
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num = va_arg(ap, size_t);
|
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else if (hflag)
|
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num = (u_short)va_arg(ap, int);
|
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else if (cflag)
|
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num = (u_char)va_arg(ap, int);
|
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else
|
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num = va_arg(ap, u_int);
|
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goto number;
|
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handle_sign:
|
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if (jflag)
|
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num = va_arg(ap, intmax_t);
|
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else if (qflag)
|
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num = va_arg(ap, quad_t);
|
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else if (tflag)
|
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num = va_arg(ap, ptrdiff_t);
|
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else if (lflag)
|
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num = va_arg(ap, long);
|
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else if (zflag)
|
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num = va_arg(ap, ssize_t);
|
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else if (hflag)
|
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num = (short)va_arg(ap, int);
|
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else if (cflag)
|
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num = (char)va_arg(ap, int);
|
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else
|
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num = va_arg(ap, int);
|
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number:
|
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if (sign && (intmax_t)num < 0) {
|
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neg = 1;
|
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num = -(intmax_t)num;
|
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}
|
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p = ksprintn(nbuf, num, base, &tmp, upper);
|
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if (sharpflag && num != 0) {
|
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if (base == 8)
|
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tmp++;
|
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else if (base == 16)
|
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tmp += 2;
|
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}
|
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if (neg)
|
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tmp++;
|
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|
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if (!ladjust && padc != '0' && width
|
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&& (width -= tmp) > 0)
|
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while (width--)
|
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PCHAR(padc);
|
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if (neg)
|
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PCHAR('-');
|
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if (sharpflag && num != 0) {
|
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if (base == 8) {
|
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PCHAR('0');
|
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} else if (base == 16) {
|
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PCHAR('0');
|
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PCHAR('x');
|
||||
}
|
||||
}
|
||||
if (!ladjust && width && (width -= tmp) > 0)
|
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while (width--)
|
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PCHAR(padc);
|
||||
|
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while (*p)
|
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PCHAR(*p--);
|
||||
|
||||
if (ladjust && width && (width -= tmp) > 0)
|
||||
while (width--)
|
||||
PCHAR(padc);
|
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|
||||
break;
|
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default:
|
||||
while (percent < fmt)
|
||||
PCHAR(*percent++);
|
||||
/*
|
||||
* Since we ignore an formatting argument it is no
|
||||
* longer safe to obey the remaining formatting
|
||||
* arguments as the arguments will no longer match
|
||||
* the format specs.
|
||||
*/
|
||||
stop = 1;
|
||||
break;
|
||||
}
|
||||
}
|
||||
#undef PCHAR
|
||||
}
|
||||
|
||||
void
|
||||
wgtprintf (short x, short y, wgtfont font, const char *fmt, ...)
|
||||
{
|
||||
va_list ap;
|
||||
va_start(ap, fmt);
|
||||
|
||||
char *buffer = malloc(251); /* Buffer to build string into*/
|
||||
kvprintf(fmt, NULL, (void *)buffer, 10, ap);
|
||||
wouttextxy (x, y, font, buffer);
|
||||
free(buffer);
|
||||
|
||||
va_end(ap);
|
||||
}
|
||||
79
part12-wgt/wgt/wtextwh.c
Normal file
79
part12-wgt/wgt/wtextwh.c
Normal file
|
|
@ -0,0 +1,79 @@
|
|||
#include "../include/wgt.h"
|
||||
|
||||
short wgettextwidth (char *string, wgtfont font)
|
||||
{
|
||||
char asc;
|
||||
unsigned short ofs,width;
|
||||
short ctr;
|
||||
unsigned short totwidth;
|
||||
wgtfont orig;
|
||||
|
||||
totwidth = 0;
|
||||
|
||||
for (ctr = 0; ctr < strlen (string); ctr++)
|
||||
/* step through all letters */
|
||||
{
|
||||
asc = string[ctr];
|
||||
/* get ascii code of letter to count */
|
||||
|
||||
if ((font == NULL) & (string != NULL))
|
||||
/* default font is 8x8 */
|
||||
totwidth += 8;
|
||||
else
|
||||
{
|
||||
orig = font; /* start at font pr */
|
||||
font += 15; /* skip over header */
|
||||
ofs = *(short *)font; /* read integer offset of char table */
|
||||
font = orig; /* reset to ptr */
|
||||
font += ofs; /* move to offset of char table */
|
||||
font += 2*asc;
|
||||
/* go to offset in table of ascii code */
|
||||
ofs = *(short *)font; /* read integer offset (letter data) */
|
||||
font = orig; /* reset to ptr */
|
||||
font += ofs; /* move to offset of letter data */
|
||||
width = *(short *)font; /* read width and height of letter */
|
||||
totwidth += width; /* add the width to the total */
|
||||
font = orig;
|
||||
}
|
||||
}
|
||||
return totwidth;
|
||||
}
|
||||
|
||||
short wgettextheight (char *string, wgtfont font)
|
||||
{
|
||||
short asc;
|
||||
unsigned short ofs, height;
|
||||
short ctr;
|
||||
short maxheight;
|
||||
wgtfont orig;
|
||||
|
||||
maxheight = 0;
|
||||
orig = font;
|
||||
|
||||
if ((font == NULL) & (string != NULL))
|
||||
/* all chars in default font are 8x8 */
|
||||
maxheight = 8;
|
||||
else
|
||||
{
|
||||
for (ctr = 0; ctr < strlen (string); ctr++)
|
||||
{
|
||||
asc = string[ctr];
|
||||
font += 15; /* header */
|
||||
ofs = *(short *)font; /* read integer ofs */
|
||||
font = orig; /* reset */
|
||||
font += ofs; /* move to ofs */
|
||||
font += 2*asc; /* go to ofs of data */
|
||||
ofs = *(short *)font; /* read integer ofs */
|
||||
font = orig; /* reset */
|
||||
font += ofs; /* move to ofs */
|
||||
|
||||
font += 2; /* skip width */
|
||||
height = *(short *)font;
|
||||
|
||||
if (height > maxheight) /* return the maximum letter height */
|
||||
maxheight = height;
|
||||
font = orig;
|
||||
}
|
||||
}
|
||||
return maxheight;
|
||||
}
|
||||
Loading…
Reference in a new issue