Mercurial > otakunoraifu

comparison font/font_peer_fn.cc @ 52:15a18fbe6f21

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* 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 223b71206888
children
comparison
equal deleted inserted replaced
51:cbb301016a4e 52:15a18fbe6f21
32 #include <stdexcept> 32 #include <stdexcept>
33 #include <string> 33 #include <string>
34 34
35 using namespace std; 35 using namespace std;
36 36
37 #include "codeconv.h"
37 #include "font.h" 38 #include "font.h"
38 #include "font_peer.h" 39 #include "font_peer.h"
39 40
40 namespace XKFont { 41 namespace XKFont {
41 42
42 #define FN_DAT_SIZE 2544768 43 #define FN_DAT_SIZE 2544768
43 44
44 PeerFn::PeerFn(const char *name, int index, int hsize, int vsize) : buffer(0) 45 PeerFn::PeerFn(const char *name, int index, int hsize, int vsize) : buffer(0)
45 { 46 {
46 FILE *fp = 0; 47 FILE *fp = 0;
47 48
48 buffer = new unsigned char[FN_DAT_SIZE]; 49 buffer = new unsigned char[FN_DAT_SIZE];
49 fp = fopen(name, "rb"); 50 fp = fopen(name, "rb");
50 if (!fp) { 51 if (!fp) {
51 delete[] buffer; 52 delete[] buffer;
52 buffer = 0; 53 buffer = 0;
53 string err = string("XKFont::PeerFn::PeerFn : Cannot open font file ")+name; 54 string err = string("XKFont::PeerFn::PeerFn : Cannot open font file ")+name;
54 throw std::invalid_argument(err); 55 throw std::invalid_argument(err);
55 } 56 }
56 fread(buffer, 1, FN_DAT_SIZE, fp); 57 fread(buffer, 1, FN_DAT_SIZE, fp);
57 fclose(fp); 58 fclose(fp);
58 59
59 return; 60 return;
60 } 61 }
61 62
62 63
63 PeerFn::~PeerFn() { 64 PeerFn::~PeerFn() {
64 delete[] buffer; 65 delete[] buffer;
65 } 66 }
66 67
67 static unsigned int
68 font_glyph_fn_codeconv_euc_to_jis(unsigned int euc)
69 {
70 unsigned int h, l;
71
72 h = (euc >> 8) & 0xff;
73 l = euc & 0xff;
74
75 if (h < 0x81) {
76 l = h;
77 h = 0;
78 } else if (l == 0x8e)
79 h = 0;
80 else {
81 h -= 0x80;
82 l -= 0x80;
83 }
84
85 return (h << 8) | l;
86 }
87
88 bool 68 bool
89 PeerFn::GlyphCreate(unsigned int code, Glyph* glyph) 69 PeerFn::GlyphCreate(unsigned int code, Glyph* glyph)
90 { 70 {
91 unsigned char *p1, *p2; 71 unsigned char *p1, *p2;
92 unsigned int h, l, offset; 72 unsigned int h, l, offset;
93 int x, y; 73 int x, y;
94 74
95 l = font_glyph_fn_codeconv_euc_to_jis(code); 75 l = codeconv_euc_to_jis(code);
96 l -= 0x2121; 76 l -= 0x2121;
97 h = l >> 8; 77 h = l >> 8;
98 l &= 0xff; 78 l &= 0xff;
99 offset = (h * 0x5e + l) * 12 * 24; 79 offset = (h * 0x5e + l) * 12 * 24;
100 if (offset > FN_DAT_SIZE - 12 * 24) 80 if (offset > FN_DAT_SIZE - 12 * 24)
101 offset = 0; 81 offset = 0;
102 82
103 glyph->bitmap_left = 0; 83 glyph->bitmap_left = 0;
104 glyph->bitmap_top = 21; 84 glyph->bitmap_top = 21;
105 glyph->bitmap.width = 24; 85 glyph->bitmap.width = 24;
106 glyph->bitmap.rows = 24; 86 glyph->bitmap.rows = 24;
107 87
108 #if 0 88 #if 0
109 glyph->metrics.ascender = private->vsize - 4; 89 glyph->metrics.ascender = private->vsize - 4;
110 glyph->metrics.descender = -4; 90 glyph->metrics.descender = -4;
111 #endif 91 #endif
112 glyph->advance.x = 24 + 1; 92 glyph->advance.x = 24 + 1;
113 glyph->advance.y = 24 + 1; 93 glyph->advance.y = 24 + 1;
114 94
115 glyph->bitmap.buffer = new unsigned char[24*24]; 95 glyph->bitmap.buffer = new unsigned char[24*24];
116 96
117 p1 = glyph->bitmap.buffer; 97 p1 = glyph->bitmap.buffer;
118 p2 = buffer + offset; 98 p2 = buffer + offset;
119 for (y = 0; y < 24; y++) { 99 for (y = 0; y < 24; y++) {
120 for (x = 0; x < 12; x++) { 100 for (x = 0; x < 12; x++) {
121 unsigned char c = ~*p2++; 101 unsigned char c = ~*p2++;
122 unsigned char c1; 102 unsigned char c1;
123 c1 = (c) & 0x0f; *p1++ = (c1<<4) | c1; 103 c1 = (c) & 0x0f;
124 c1 = (c>>4)& 0x0f; *p1++ = (c1<<4) | c1; 104 *p1++ = (c1<<4) | c1;
125 } 105 c1 = (c>>4)& 0x0f;
126 } 106 *p1++ = (c1<<4) | c1;
127 return true; 107 }
108 }
109 return true;
128 } 110 }
129 111
130 } /* end of namespace XKFont */ 112 } /* end of namespace XKFont */