1 #ifndef __VTERM_INTERNAL_H__ 2 #define __VTERM_INTERNAL_H__ 3 4 #include "vterm.h" 5 6 #include <stdarg.h> 7 8 #if defined(__GNUC__) 9 # define INTERNAL __attribute__((visibility("internal"))) 10 #else 11 # define INTERNAL 12 #endif 13 14 typedef struct VTermEncoding VTermEncoding; 15 16 typedef struct { 17 VTermEncoding *enc; 18 19 // This size should be increased if required by other stateful encodings 20 char data[4*sizeof(uint32_t)]; 21 } VTermEncodingInstance; 22 23 struct VTermPen 24 { 25 VTermColor fg; 26 VTermColor bg; 27 unsigned int bold:1; 28 unsigned int underline:2; 29 unsigned int italic:1; 30 unsigned int blink:1; 31 unsigned int reverse:1; 32 unsigned int strike:1; 33 unsigned int font:4; /* To store 0-9 */ 34 }; 35 36 static inline int vterm_color_equal(VTermColor a, VTermColor b) 37 { 38 return a.red == b.red && a.green == b.green && a.blue == b.blue; 39 } 40 41 struct VTermState 42 { 43 VTerm *vt; 44 45 const VTermStateCallbacks *callbacks; 46 void *cbdata; 47 48 int rows; 49 int cols; 50 51 /* Current cursor position */ 52 VTermPos pos; 53 54 int at_phantom; /* True if we're on the "81st" phantom column to defer a wraparound */ 55 56 int scrollregion_top; 57 int scrollregion_bottom; /* -1 means unbounded */ 58 #define SCROLLREGION_BOTTOM(state) ((state)->scrollregion_bottom > -1 ? (state)->scrollregion_bottom : (state)->rows) 59 int scrollregion_left; 60 #define SCROLLREGION_LEFT(state) ((state)->mode.leftrightmargin ? (state)->scrollregion_left : 0) 61 int scrollregion_right; /* -1 means unbounded */ 62 #define SCROLLREGION_RIGHT(state) ((state)->mode.leftrightmargin && (state)->scrollregion_right > -1 ? (state)->scrollregion_right : (state)->cols) 63 64 /* Bitvector of tab stops */ 65 unsigned char *tabstops; 66 67 VTermLineInfo *lineinfo; 68 #define ROWWIDTH(state,row) ((state)->lineinfo[(row)].doublewidth ? ((state)->cols / 2) : (state)->cols) 69 #define THISROWWIDTH(state) ROWWIDTH(state, (state)->pos.row) 70 71 /* Mouse state */ 72 int mouse_col, mouse_row; 73 int mouse_buttons; 74 int mouse_flags; 75 enum { MOUSE_X10, MOUSE_UTF8, MOUSE_SGR, MOUSE_RXVT } mouse_protocol; 76 77 /* Last glyph output, for Unicode recombining purposes */ 78 uint32_t *combine_chars; 79 size_t combine_chars_size; // Number of ELEMENTS in the above 80 int combine_width; // The width of the glyph above 81 VTermPos combine_pos; // Position before movement 82 83 struct { 84 int keypad:1; 85 int cursor:1; 86 int autowrap:1; 87 int insert:1; 88 int newline:1; 89 int cursor_visible:1; 90 int cursor_blink:1; 91 unsigned int cursor_shape:2; 92 int alt_screen:1; 93 int origin:1; 94 int screen:1; 95 int leftrightmargin:1; 96 } mode; 97 98 VTermEncodingInstance encoding[4], encoding_utf8; 99 int gl_set, gr_set, gsingle_set; 100 101 struct VTermPen pen; 102 103 VTermColor default_fg; 104 VTermColor default_bg; 105 VTermColor colors[16]; // Store the 8 ANSI and the 8 ANSI high-brights only 106 107 int fg_index; 108 int bg_index; 109 int bold_is_highbright; 110 111 unsigned int protected_cell : 1; 112 113 /* Saved state under DEC mode 1048/1049 */ 114 struct { 115 VTermPos pos; 116 struct VTermPen pen; 117 118 struct { 119 int cursor_visible:1; 120 int cursor_blink:1; 121 unsigned int cursor_shape:2; 122 } mode; 123 } saved; 124 }; 125 126 struct VTerm 127 { 128 VTermAllocatorFunctions *allocator; 129 void *allocdata; 130 131 int rows; 132 int cols; 133 134 struct { 135 int utf8:1; 136 int ctrl8bit:1; 137 } mode; 138 139 enum VTermParserState { 140 NORMAL, 141 CSI, 142 OSC, 143 DCS, 144 ESC, 145 ESC_IN_OSC, 146 ESC_IN_DCS, 147 } parser_state; 148 const VTermParserCallbacks *parser_callbacks; 149 void *cbdata; 150 151 /* len == malloc()ed size; cur == number of valid bytes */ 152 char *strbuffer; 153 size_t strbuffer_len; 154 size_t strbuffer_cur; 155 156 char *outbuffer; 157 size_t outbuffer_len; 158 size_t outbuffer_cur; 159 160 VTermState *state; 161 VTermScreen *screen; 162 }; 163 164 struct VTermEncoding { 165 void (*init) (VTermEncoding *enc, void *data); 166 void (*decode)(VTermEncoding *enc, void *data, 167 uint32_t cp[], int *cpi, int cplen, 168 const char bytes[], size_t *pos, size_t len); 169 }; 170 171 typedef enum { 172 ENC_UTF8, 173 ENC_SINGLE_94 174 } VTermEncodingType; 175 176 void *vterm_allocator_malloc(VTerm *vt, size_t size); 177 void vterm_allocator_free(VTerm *vt, void *ptr); 178 179 void vterm_push_output_bytes(VTerm *vt, const char *bytes, size_t len); 180 void vterm_push_output_vsprintf(VTerm *vt, const char *format, va_list args); 181 void vterm_push_output_sprintf(VTerm *vt, const char *format, ...); 182 void vterm_push_output_sprintf_ctrl(VTerm *vt, unsigned char ctrl, const char *fmt, ...); 183 void vterm_push_output_sprintf_dcs(VTerm *vt, const char *fmt, ...); 184 185 void vterm_state_free(VTermState *state); 186 187 void vterm_state_newpen(VTermState *state); 188 void vterm_state_resetpen(VTermState *state); 189 void vterm_state_setpen(VTermState *state, const long args[], int argcount); 190 int vterm_state_getpen(VTermState *state, long args[], int argcount); 191 void vterm_state_savepen(VTermState *state, int save); 192 193 enum { 194 C1_SS3 = 0x8f, 195 C1_DCS = 0x90, 196 C1_CSI = 0x9b, 197 C1_ST = 0x9c, 198 }; 199 200 void vterm_state_push_output_sprintf_CSI(VTermState *vts, const char *format, ...); 201 202 void vterm_screen_free(VTermScreen *screen); 203 204 VTermEncoding *vterm_lookup_encoding(VTermEncodingType type, char designation); 205 206 int vterm_unicode_width(int codepoint); 207 int vterm_unicode_is_combining(int codepoint); 208 209 #endif 210
