Mercurial > otakunoraifu
annotate font/font_peer_ft2.cc @ 52:15a18fbe6f21
* Known bugs added to the README
* Code cleaning (0 -> NULL when needed, indentation, spaces, ...)
| author | thib |
|---|---|
| date | Sat, 18 Apr 2009 18:35:39 +0000 |
| parents | 5f548e5957a8 |
| children | 4416cfac86ae |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * Copyright (c) 2004 Kazunori "jagarl" Ueno | |
| 3 * Copyright (c) 2000, 2001 Yuki Sawada | |
| 4 * All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions | |
| 8 * are met: | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * 2. Redistributions in binary form must reproduce the above copyright | |
| 12 * notice, this list of conditions and the following disclaimer in the | |
| 13 * documentation and/or other materials provided with the distribution. | |
| 14 * 3. The name of the author may not be used to endorse or promote products | |
| 15 * derived from this software without specific prior written permission. | |
| 16 * | |
| 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
| 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
| 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
| 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
| 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 27 */ | |
| 28 | |
| 29 #include <stdio.h> | |
| 30 #include <stdlib.h> | |
| 31 #include <string.h> | |
| 32 #include <stdexcept> | |
| 33 #include <string> | |
| 34 | |
| 35 using namespace std; | |
| 36 | |
| 37 #include "font.h" | |
| 38 #include "font_peer.h" | |
| 39 #include "codeconv.h" | |
| 40 | |
| 41 namespace XKFont { | |
| 42 | |
| 43 typedef struct _FontLibrary { | |
| 52 | 44 FT_Library super; |
| 45 int ref_count; | |
| 46 char **paths; | |
| 47 int num_paths; | |
| 0 | 48 } FontLibrary; |
| 49 | |
| 50 static FontLibrary *library = NULL; | |
| 51 | |
|
47
5f548e5957a8
* get rid of the "deprecated conversion from string constant to ‘char*’" warnings
thib
parents:
0
diff
changeset
|
52 static const char *default_paths[] = { |
| 0 | 53 ".", |
| 54 "/", | |
| 55 "/usr/X11R6/lib/X11/fonts/TrueType", | |
| 56 "/usr/local/share/fonts/TrueType", | |
| 57 "/usr//share/fonts/TrueType", | |
| 58 "/usr//share/fonts/tt", | |
| 59 NULL | |
| 60 }; | |
| 61 | |
| 62 static void font_library_ft2_add_path(const char *path); | |
| 63 static void font_library_ft2_remove_path(const char *path); | |
| 64 static void font_library_ft2_add_path(const char *path); | |
| 65 static char *font_library_ft2_build_path(const char *base, const char *name); | |
| 66 | |
| 52 | 67 static int font_library_ft2_alloc() |
| 0 | 68 { |
| 52 | 69 int i; |
| 0 | 70 |
| 52 | 71 if (!library) { |
| 72 library = (FontLibrary*) calloc(sizeof(FontLibrary), 1); | |
| 73 if (library) { | |
| 74 if (FT_Init_FreeType(&library->super)) { | |
| 75 free(library); | |
| 76 library = NULL; | |
| 77 fprintf(stderr, "XKFont::font_library_ft2_alloc: Couldn't allocate FreeType.\n"); | |
| 78 return 0; | |
| 79 } | |
| 80 fprintf(stderr, "XKFont::font_library_ft2_alloc : FreeType allocated successfully.\n"); | |
| 81 for (i = 0; default_paths[i]; i++) | |
| 82 font_library_ft2_add_path(default_paths[i]); | |
| 83 } | |
| 84 } | |
| 0 | 85 |
| 52 | 86 library->ref_count++; |
| 87 return 1; | |
| 0 | 88 } |
| 89 | |
| 52 | 90 static void font_library_ft2_free() |
| 0 | 91 { |
| 52 | 92 int i; |
| 93 | |
| 94 if (!library || library->ref_count <= 0) | |
| 95 return; | |
| 96 if (--library->ref_count == 0) { | |
| 97 FT_Done_FreeType(library->super); | |
| 98 for (i = 0; i < library->num_paths; i++) | |
| 99 free(library->paths[i]); | |
| 100 free(library->paths); | |
| 101 free(library); | |
| 102 library = NULL; | |
| 103 fprintf(stderr, "XKFont::font_library_ft2_free : FreeType done.\n"); | |
| 104 } | |
| 0 | 105 } |
| 106 | |
| 52 | 107 static void font_library_ft2_add_path(const char *path) |
| 0 | 108 { |
| 52 | 109 library->num_paths++; |
| 110 if (!library->paths) | |
| 111 library->paths = (char**) malloc(sizeof(char *)); | |
| 112 else | |
| 113 library->paths = (char**) realloc( (void*)library->paths, library->num_paths * sizeof(char *)); | |
| 114 library->paths[library->num_paths - 1] = strdup(path); | |
| 0 | 115 } |
| 116 | |
| 52 | 117 static void font_library_ft2_remove_path(const char *path) |
| 0 | 118 { |
| 52 | 119 int i, j; |
| 0 | 120 |
| 52 | 121 for (i = 0; i < library->num_paths; i++) { |
| 122 if (!strcmp(path, library->paths[i])) { | |
| 123 library->num_paths--; | |
| 124 for (j = i; j < library->num_paths; j++) | |
| 125 library->paths[j] = library->paths[j + 1]; | |
| 126 if (library->num_paths > 0) | |
| 127 library->paths = (char**) realloc(library->paths, library->num_paths * sizeof(char *)); | |
| 128 else { | |
| 129 free(library->paths); | |
| 130 library->paths = NULL; | |
| 131 } | |
| 132 } | |
| 133 } | |
| 0 | 134 } |
| 135 | |
| 136 typedef struct _FontEncoding { | |
| 52 | 137 FT_UShort platform_id; |
| 138 FT_Encoding encoding; | |
| 139 FontCodeConverter conv_func; | |
| 0 | 140 } FontEncoding; |
| 141 | |
| 142 static FontEncoding encodings[] = { | |
| 143 { 3, (FT_Encoding)ft_encoding_unicode, codeconv_euc_to_unicode }, | |
| 144 { 3, (FT_Encoding)ft_encoding_sjis, codeconv_euc_to_sjis }, | |
| 145 { 1, (FT_Encoding)ft_encoding_apple_roman, codeconv_euc_to_latin1 }, | |
| 146 { (FT_UShort)-1, (FT_Encoding)-1, NULL } | |
| 147 }; | |
| 148 | |
| 52 | 149 static char * font_library_ft2_build_path(const char *base, const char *name) |
| 0 | 150 { |
| 52 | 151 char *path; |
| 152 const char *strs[] = { base, "/", name, NULL }; | |
| 153 int i = 0; | |
| 154 | |
| 155 path = (char*) calloc(sizeof(char), strlen(base) + strlen(name) + 2); | |
| 156 if (path) | |
| 157 while (strs[i]) | |
| 158 strcat(path, strs[i++]); | |
| 159 | |
| 160 return path; | |
| 0 | 161 } |
| 162 | |
| 163 PeerFt2::PeerFt2(const char *name, int index, int hsize, int vsize) | |
| 164 { | |
| 52 | 165 int i,j; |
| 166 | |
| 167 font_library_ft2_alloc(); | |
| 168 | |
| 169 for (i = 0; i < library->num_paths; i++) { | |
| 170 char *path = font_library_ft2_build_path(library->paths[i], name); | |
| 171 if (path) { | |
| 172 if (FT_New_Face(library->super, path, index, &face)) | |
| 173 face = NULL; | |
| 174 free(path); | |
| 175 } | |
| 176 if (face) break; | |
| 177 } | |
| 178 | |
| 179 if (!face) { | |
| 180 string err = string("XKFont::PeerFt2::PeerFt : Cannot open font(TrueType) : ")+name; | |
| 181 throw std::invalid_argument(err); | |
| 182 } | |
| 0 | 183 |
| 52 | 184 conv_func = 0; |
| 185 for (i=0; encodings[i].conv_func != 0; i++) { | |
| 186 FT_UShort platform_id = encodings[i].platform_id; | |
| 187 FT_Encoding encoding = encodings[i].encoding; | |
| 188 for (j = 0; j < face->num_charmaps; j++) { | |
| 189 FT_CharMap cmap = face->charmaps[j]; | |
| 190 if (cmap->platform_id == platform_id && cmap->encoding == encoding) { | |
| 191 if (FT_Set_Charmap(face, cmap) == 0) { | |
| 192 conv_func = encodings[i].conv_func; | |
| 193 break; | |
| 194 } | |
| 195 } | |
| 196 } | |
| 197 if (conv_func) break; | |
| 198 } | |
| 0 | 199 |
| 52 | 200 if (conv_func == 0) { |
| 201 FT_Done_Face(face); | |
| 202 fprintf(stderr,"cannot find charmap\n"); | |
| 203 string err = string("XKFont::PeerFt2::PeerFt : No supported code converter of font (TrueType) ")+name; | |
| 204 throw std::invalid_argument(err); | |
| 205 } | |
| 206 | |
| 207 FT_Set_Pixel_Sizes(face, hsize, vsize); | |
| 0 | 208 } |
| 209 | |
| 210 PeerFt2::~PeerFt2() { | |
| 211 FT_Done_Face(face); | |
| 212 font_library_ft2_free(); | |
| 213 } | |
| 214 | |
| 52 | 215 bool PeerFt2::GlyphCreate(unsigned int code, Glyph* glyph) |
| 0 | 216 { |
| 52 | 217 FT_GlyphSlot slot; |
| 218 FT_UInt index; | |
| 219 int bmsize; | |
| 0 | 220 |
| 52 | 221 if (face == 0) return false; |
| 222 code = conv_func(code); | |
| 223 if (code == 0) return false; | |
| 224 index = FT_Get_Char_Index(face, code); | |
| 225 if (index == 0) return false; | |
| 0 | 226 |
| 52 | 227 /* Don't consider error */ |
| 228 slot = face->glyph; | |
| 229 if (slot) { | |
| 230 // if (! FT_Load_Glyph(face, index, FT_LOAD_DEFAULT)) { | |
| 231 // BITMAP ¤À¤È ¤Ê¤¼¤« render ¤·¤Æ¤¯¤ì¤Ê¤¤¡Ä¡Ä | |
| 232 // LOAD_DEFAULT ¤Ç¤â¡¢²¼¤ËÂбþ¥³¡¼¥É¤òÉÕ¤±¤¿¤Î¤Ç°ì±þ¤ÏÂç¾æÉ× | |
| 233 if (! FT_Load_Glyph(face, index, FT_LOAD_NO_BITMAP)) | |
| 234 FT_Render_Glyph(slot, ft_render_mode_normal); | |
| 235 } | |
| 236 | |
| 237 glyph->bitmap_left = slot->bitmap_left; | |
| 238 glyph->bitmap_top = slot->bitmap_top; | |
| 239 glyph->bitmap.width = slot->bitmap.width; | |
| 240 glyph->bitmap.rows = slot->bitmap.rows; | |
| 0 | 241 |
| 242 /* | |
| 52 | 243 glyph->metrics.ascender = private->face->size->metrics.ascender >> 6; |
| 244 glyph->metrics.descender = private->face->size->metrics.descender >> 6; | |
| 0 | 245 */ |
| 246 | |
| 52 | 247 glyph->advance.x = slot->advance.x >> 6; |
| 248 glyph->advance.y = slot->advance.y >> 6; | |
| 0 | 249 |
| 52 | 250 bmsize = glyph->bitmap.width * glyph->bitmap.rows; |
| 251 if (bmsize > 0) { | |
| 252 glyph->bitmap.buffer = new unsigned char[bmsize]; | |
| 253 memcpy(glyph->bitmap.buffer, slot->bitmap.buffer, bmsize); | |
| 254 } | |
| 0 | 255 // ¤Ê¤¼¤« Render ¤·¤¿¤Î¤Ë MONO ¤Ê¤³¤È¤¬¤¢¤ë¡Ä¡Ä |
| 256 /* for freetype < 2.1.3, use ``ft_pixel_mode_mono'' */ | |
| 52 | 257 if (slot->bitmap.pixel_mode == ft_pixel_mode_mono) { |
| 258 int i, j; | |
| 0 | 259 // if (slot->bitmap.pixel_mode == FT_PIXEL_MODE_MONO) {int i,j; |
| 52 | 260 char* d = (char*)slot->bitmap.buffer; |
| 261 for (i=0; i < glyph->bitmap.rows; i++) { | |
| 262 int flag = *d++; | |
| 263 int len = 8; | |
| 264 unsigned char* buf = glyph->bitmap.buffer + i*slot->bitmap.width; | |
| 265 for (j=0; j < glyph->bitmap.width; j++) { | |
| 266 if (len == 0) { | |
| 267 flag = *d++; | |
| 268 len = 8; | |
| 269 } | |
| 270 if (flag & 0x80) *buf++ = 0xff; | |
| 271 else *buf++ = 0; | |
| 272 flag <<= 1; | |
| 273 len--; | |
| 0 | 274 } |
| 275 } | |
| 276 } | |
| 277 | |
| 52 | 278 return true; |
| 0 | 279 } |
| 280 | |
| 281 } /* end of namespace XKFont */ | |
| 282 |