/*** $Id: rawbitmap.c,v 1.27 2003/09/04 02:40:36 weiym Exp $** ** rawbitmap.c: The Raw Bitmap Font operation set.**** Copyright (C) 2003 Feynman Software.** Copyright (C) 2000 ~ 2002 Wei Yongming.**** Current maintainer: Wei Yongming.**** Create date: 2000/06/13*//*** This program is free software; you can redistribute it and/or modify** it under the terms of the GNU General Public License as published by** the Free Software Foundation; either version 2 of the License, or** (at your option) any later version.**** This program is distributed in the hope that it will be useful,** but WITHOUT ANY WARRANTY; without even the implied warranty of** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the** GNU General Public License for more details.**** You should have received a copy of the GNU General Public License** along with this program; if not, write to the Free Software** Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA*//*** TODO:*/#include <stdio.h>#include <stdlib.h>#include <string.h>#include <sys/stat.h>#include <sys/types.h>#include <fcntl.h>#include <unistd.h>#include "common.h"#include "minigui.h"#include "gdi.h"#ifdef HAVE_MMAP    #include <sys/mman.h>#endif#include "charset.h"#include "devfont.h"#include "rawbitmap.h"#include "fontname.h"#ifdef _RBF_SUPPORT#ifdef _INCORE_RESstatic INCORE_RBFINFO* incore_rbfonts [] = {    &fixed6x12_iso8859_1,#ifdef _INCORERBF_GB12    &song12_gb2312,#endif};#define NR_RBFONTS  (sizeof (incore_rbfonts) /sizeof (INCORE_RBFINFO*))static DEVFONT* incore_rbf_dev_fonts;static RBFINFO* incore_rbf_infos;BOOL InitIncoreRBFonts (void){    int i;    incore_rbf_dev_fonts = calloc (NR_RBFONTS, sizeof (DEVFONT));    incore_rbf_infos = calloc (NR_RBFONTS, sizeof (RBFINFO));    if (!incore_rbf_dev_fonts || !incore_rbf_infos)        return TRUE;    for (i = 0; i < NR_RBFONTS; i++) {        char charset [LEN_FONT_NAME + 1];        if (!fontGetCharsetFromName (incore_rbfonts [i]->name, charset)) {            fprintf (stderr, "GDI: Invalid font name (charset): %s.\n",                     incore_rbfonts [i]->name);            goto error_load;        }        if ((incore_rbf_infos [i].charset_ops                = GetCharsetOps (charset)) == NULL) {            fprintf (stderr, "GDI: Not supported charset: %s.\n", charset);            goto error_load;        }        if ((incore_rbf_infos [i].width = fontGetWidthFromName (incore_rbfonts [i]->name)) == -1) {            fprintf (stderr, "GDI: Invalid font name (width): %s.\n",                     incore_rbfonts [i]->name);            goto error_load;        }                if ((incore_rbf_infos [i].height = fontGetHeightFromName (incore_rbfonts [i]->name)) == -1) {            fprintf (stderr, "GDI: Invalid font name (height): %s.\n",                    incore_rbfonts [i]->name);            goto error_load;        }                incore_rbf_infos [i].nr_chars = incore_rbf_infos [i].charset_ops->nr_chars;        incore_rbf_infos [i].font_size = ((incore_rbf_infos [i].width + 7) >> 3) *                 incore_rbf_infos [i].height * incore_rbf_infos [i].nr_chars;        incore_rbf_infos [i].font = (unsigned char*) incore_rbfonts [i]->data;        strncpy (incore_rbf_dev_fonts[i].name, incore_rbfonts [i]->name, LEN_DEVFONT_NAME);        incore_rbf_dev_fonts[i].name [LEN_DEVFONT_NAME] = '\0';        incore_rbf_dev_fonts[i].font_ops = &raw_bitmap_font_ops;        incore_rbf_dev_fonts[i].charset_ops = incore_rbf_infos [i].charset_ops;        incore_rbf_dev_fonts[i].data = incore_rbf_infos + i;#if 0        fprintf (stderr, "GDI: RBFDevFont %i: %s.\n", i, incore_rbf_dev_fonts[i].name);#endif    }    for (i = 0; i < NR_RBFONTS; i++) {        if (incore_rbf_infos [i].charset_ops->bytes_maxlen_char > 1)            AddMBDevFont (incore_rbf_dev_fonts + i);        else            AddSBDevFont (incore_rbf_dev_fonts + i);    }    return TRUE;error_load:    fprintf (stderr, "GDI: Error in initializing incore raw bitmap fonts!\n");    TermIncoreRBFonts ();    return FALSE;}void TermIncoreRBFonts (void){    free (incore_rbf_dev_fonts);    incore_rbf_dev_fonts = NULL;    free (incore_rbf_infos);    incore_rbf_infos = NULL;}#else/********************** Load/Unload of raw bitmap font ***********************/BOOL LoadRawBitmapFont (const char* file, RBFINFO* RBFInfo){#ifdef HAVE_MMAP    int fd;#else    FILE* fp;#endif    size_t size;    size = ((RBFInfo->width + 7) >> 3) * RBFInfo->height * RBFInfo->nr_chars;    RBFInfo->font_size = size;#ifdef HAVE_MMAP    if ((fd = open (file, O_RDONLY)) < 0)        return FALSE;    if ((RBFInfo->font = mmap (NULL, size, PROT_READ, MAP_SHARED,             fd, 0)) == MAP_FAILED) {        close (fd);        return FALSE;    }    close (fd);#else    // Allocate memory for font data.    if (!(RBFInfo->font = (char *)malloc (size)) )        return FALSE;    // Open font file and read information to the system memory.    if (!(fp = fopen (file, "rb"))) {        return FALSE;    }    if (fread (RBFInfo->font, sizeof(char), size, fp) < size) {        fclose(fp);        return FALSE;    }    fclose(fp);#endif  /* HAVE_MMAP */    return TRUE;}void UnloadRawBitmapFont (RBFINFO* RBFInfo){#ifdef HAVE_MMAP    if (RBFInfo->font)        munmap (RBFInfo->font, RBFInfo->font_size);#else    free (RBFInfo->font);#endif}/********************** Init/Term of raw bitmap font ***********************/static int nr_fonts;static RBFINFO* rbf_infos;static DEVFONT* rbf_dev_fonts;#define SECTION_NAME "rawbitmapfonts"BOOL InitRawBitmapFonts (void){    int i;    char font_name [LEN_DEVFONT_NAME + 1];    if (GetIntValueFromEtcFile (ETCFILEPATH, SECTION_NAME, "font_number",                            &nr_fonts) < 0 )        return FALSE;    if ( nr_fonts < 1) return TRUE;    rbf_infos = calloc (nr_fonts, sizeof (RBFINFO));    rbf_dev_fonts = calloc (nr_fonts, sizeof (DEVFONT));    if (rbf_infos == NULL || rbf_dev_fonts == NULL) {        free (rbf_infos);        free (rbf_dev_fonts);        return FALSE;    }    for (i = 0; i < nr_fonts; i++)        rbf_infos [i].font = NULL;    for (i = 0; i < nr_fonts; i++) {        char key [11];        char charset [LEN_FONT_NAME + 1];        char file [MAX_PATH + 1];        sprintf (key, "name%d", i);        if (GetValueFromEtcFile (ETCFILEPATH, SECTION_NAME, key,                            font_name, LEN_DEVFONT_NAME) < 0 )            goto error_load;        if (!fontGetCharsetFromName (font_name, charset)) {            fprintf (stderr, "GDI: Invalid font name (charset): %s.\n",                     font_name);            goto error_load;        }        if ((rbf_infos [i].charset_ops                = GetCharsetOps (charset)) == NULL) {            fprintf (stderr, "GDI: Not supported charset: %s.\n", charset);            goto error_load;        }        if ((rbf_infos [i].width = fontGetWidthFromName (font_name)) == -1) {            fprintf (stderr, "GDI: Invalid font name (width): %s.\n",                     font_name);            goto error_load;        }                if ((rbf_infos [i].height = fontGetHeightFromName (font_name)) == -1) {            fprintf (stderr, "GDI: Invalid font name (height): %s.\n",                    font_name);            goto error_load;        }                rbf_infos [i].nr_chars = rbf_infos [i].charset_ops->nr_chars;        sprintf (key, "fontfile%d", i);        if (GetValueFromEtcFile (ETCFILEPATH, SECTION_NAME, key,                            file, MAX_PATH) < 0)            goto error_load;        if (!LoadRawBitmapFont (file, rbf_infos + i))            goto error_load;        strncpy (rbf_dev_fonts[i].name, font_name, LEN_DEVFONT_NAME);        rbf_dev_fonts[i].name [LEN_DEVFONT_NAME] = '\0';        rbf_dev_fonts[i].font_ops = &raw_bitmap_font_ops;        rbf_dev_fonts[i].charset_ops = rbf_infos [i].charset_ops;        rbf_dev_fonts[i].data = rbf_infos + i;#if 0        fprintf (stderr, "GDI: RBFDevFont %i: %s.\n", i, rbf_dev_fonts[i].name);#endif    }    for (i = 0; i < nr_fonts; i++) {        if (rbf_infos [i].charset_ops->bytes_maxlen_char > 1)            AddMBDevFont (rbf_dev_fonts + i);        else            AddSBDevFont (rbf_dev_fonts + i);    }    return TRUE;error_load:    fprintf (stderr, "GDI: Error in loading raw bitmap fonts!\n");    for (i = 0; i < nr_fonts; i++)        UnloadRawBitmapFont (rbf_infos + i);        free (rbf_infos);    free (rbf_dev_fonts);    rbf_infos = NULL;    rbf_dev_fonts = NULL;    return FALSE;}void TermRawBitmapFonts (void){    int i;    for (i = 0; i < nr_fonts; i++)        UnloadRawBitmapFont (rbf_infos + i);        free (rbf_infos);    free (rbf_dev_fonts);    rbf_infos = NULL;    rbf_dev_fonts = NULL;}#endif /* _INCORE_RES *//*************** Raw bitmap font operations *********************************/static int get_char_width (LOGFONT* logfont, DEVFONT* devfont,                 const unsigned char* mchar, int len){    return RBFONT_INFO_P (devfont)->width;}static int get_str_width (LOGFONT* logfont, DEVFONT* devfont,                 const unsigned char* mstr, int len, int cExtra){    int number;        number = (*devfont->charset_ops->nr_chars_in_str) (mstr, len);    return (RBFONT_INFO_P (devfont)->width + cExtra )* number;}static int get_ave_width (LOGFONT* logfont, DEVFONT* devfont){    return RBFONT_INFO_P (devfont)->width;}static int get_font_height (LOGFONT* logfont, DEVFONT* devfont){    return RBFONT_INFO_P (devfont)->height;}static int get_font_size (LOGFONT* logfont, DEVFONT* devfont, int expect){    return RBFONT_INFO_P (devfont)->height;}static int get_font_ascent (LOGFONT* logfont, DEVFONT* devfont){    int height = RBFONT_INFO_P (devfont)->height;        if (height >= 20)        return height - 3;    else if (height >= 15)        return height - 2;    else if (height >= 10)        return height - 1;    return height;}static int get_font_descent (LOGFONT* logfont, DEVFONT* devfont){    int height = RBFONT_INFO_P (devfont)->height;        if (height >= 20)        return 3;    else if (height >= 15)        return 2;    else if (height >= 10)        return 1;    return 0;}static size_t char_bitmap_size (LOGFONT* logfont, DEVFONT* devfont,                 const unsigned char* mchar, int len){    return ((RBFONT_INFO_P (devfont)->width + 7) >> 3)                 * RBFONT_INFO_P (devfont)->height;}static size_t max_bitmap_size (LOGFONT* logfont, DEVFONT* devfont){    return ((RBFONT_INFO_P (devfont)->width + 7) >> 3)                 * RBFONT_INFO_P (devfont)->height;}static const void* get_char_bitmap (LOGFONT* logfont, DEVFONT* devfont,            const unsigned char* mchar, int len){    int bitmap_size;    int offset;    offset = (*devfont->charset_ops->char_offset) (mchar);    if (offset >= RBFONT_INFO_P (devfont)->font_size)        offset = (*devfont->charset_ops->char_offset)                     (devfont->charset_ops->def_char);    bitmap_size = ((RBFONT_INFO_P (devfont)->width + 7) >> 3)                 * RBFONT_INFO_P (devfont)->height;     return RBFONT_INFO_P (devfont)->font + bitmap_size * offset;}/**************************** Global data ************************************/FONTOPS raw_bitmap_font_ops = {    get_char_width,    get_str_width,    get_ave_width,    get_ave_width,  // max_width same as ave_width    get_font_height,    get_font_size,    get_font_ascent,    get_font_descent,    char_bitmap_size,    max_bitmap_size,    get_char_bitmap,    NULL,    NULL,    NULL,    NULL,    NULL};#endif  /* _RBF_SUPPORT */