File:  [RetroPC.NET] / np2 / font / fontfm7.c
Revision 1.6: download - view: text, annotated - select for diffs
Thu Feb 10 05:11:34 2005 JST (20 years, 8 months ago) by yui
Branches: MAIN
CVS tags: VER_0_82_x64, VER_0_82, VER_0_81A, VER_0_81, HEAD
fix...

#include	"compiler.h"
#include	"dosio.h"
#include	"cpucore.h"
#include	"font.h"
#include	"fontdata.h"


static void fm7ankcpy(UINT8 *dst, const UINT8 *src, int from, int to) {

	int		y;
const UINT8	*p;
	int		ank;

	for (ank=from; ank<to; ank++) {
		// ANKフォントのスタート位置
		p = src + 0x6000 + ((ank & 0x1f) * 0x20)
								+ (((ank / 0x20) - 1) * 0x400);
		for (y=0; y<16; y++) {
			*dst++ = *p;
			p += 2;
		}
	}
}

static void fm7knjcpy(UINT8 *dst, const UINT8 *src, int from, int to) {

	int		i, j, k;
const UINT8	*p;
	UINT8	*q;

	for (i=from; i<to; i++) {
		q = dst + 0x21000 + (i << 4);
		for (j=0x21; j<0x7f; j++) {
			p = NULL;
			// 漢字のポインタを求める
			if ((i >= 0x01) && (i < 0x08)) {			// 2121〜277e
				p = src + ((j & 0x1f) * 0x20) + (i * 0x400);

				if (j >= 0x60) {
					p += 0x2000;
				}
				else if (j >= 0x40) {
					p += 0x4000;
				}
			}
			else if ((i >= 0x10) && (i < 0x20)) {		// 3021〜3f7e
				p = src + 0x08000 + ((j & 0x1f) * 0x20)
							+ ((i - 0x10) * 0x400)
							+ (((j / 0x20) - 1) * 0x4000);
			}
			else if ((i >= 0x20) && (i < 0x50)) {		// 4021〜4f7e
				p = src + 0x14000 + ((j & 0x1f) * 0x20)
							+ ((i - 0x20) * 0x400)
							+ (((j / 0x20) - 1) * 0x4000);
			}
			if (p) {							// 規格内コードならば
				// コピーする
				for (k=0; k<16; k++) {
					*(q+k+0x000) = p[0];
					*(q+k+0x800) = p[1];
					p += 2;
				}
			}
			q += 0x1000;
		}
	}
}

UINT8 fontfm7_read(const OEMCHAR *filename, UINT8 loading) {

	FILEH	fh;
	UINT8	*work;
	OEMCHAR	fname[MAX_PATH];

	work = (UINT8 *)_MALLOC(0x20000, "fm7font");
	if (work == NULL) {
		goto frf7_err1;
	}
	file_cpyname(fname, filename, NELEMENTS(fname));

	// 8dot ANKを読み込む必要はある?
	if (loading & FONT_ANK8) {
		file_cutname(fname);
		file_catname(fname, fm7ankname, NELEMENTS(fname));
		fh = file_open_rb(fname);
		if (fh != FILEH_INVALID) {
			if (file_read(fh, work, 2048) == 2048) {
				loading &= ~FONT_ANK8;
				fontdata_ank8store(work + 0x100, 0x20, 0x60);
				fontdata_ank8store(work + 0x500, 0xa0, 0x40);
			}
			file_close(fh);
		}
	}

	// 16dot ASCII 及び 漢字を読み込む必要はあるか?
	if (loading & (FONT_ANK16a | FONT_KNJ1)) {
		file_cutname(fname);
		file_catname(fname, fm7knjname, NELEMENTS(fname));
		fh = file_open_rb(fname);
		if (fh != FILEH_INVALID) {
			if (file_read(fh, work, 0x20000) == 0x20000) {

				// 16dot ASCIIを読み込む?
				if (loading & FONT_ANK16a) {
					loading &= ~FONT_ANK16a;
					fm7ankcpy(fontrom + 0x80200, work, 0x20, 0x7f);
					fontdata_patch16a();
				}

				// 第一水準漢字を読み込む?
				if (loading & FONT_KNJ1) {
					loading &= ~FONT_KNJ1;
					fm7knjcpy(fontrom, work, 0x01, 0x30);
					fontdata_patchjis();
				}
			}
			file_close(fh);
		}
	}
	_MFREE(work);

frf7_err1:
	return(loading);
}


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