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main.c
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// stdlib stuff
#include <stdio.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <assert.h>
#include <time.h>
#include <unistd.h>
// mruby stuff
#include <mruby.h>
#include <mruby/array.h>
#include <mruby/irep.h>
#include <mruby/compile.h>
#include <mruby/string.h>
#include <mruby/error.h>
#include <mruby/data.h>
#include <mruby/class.h>
#include <mruby/value.h>
#include <mruby/variable.h>
#include <mruby/error.h>
#include <mruby/internal.h>
#include <mruby/array.h>
#include <mruby/irep.h>
#include <mruby/compile.h>
#include <mruby/string.h>
#include <mruby/numeric.h>
#include <mruby/array.h>
#include <mruby/irep.h>
#include <mruby/compile.h>
#include <mruby/string.h>
#include <mruby/error.h>
#include <mruby/data.h>
#include <mruby/class.h>
#include <mruby/value.h>
#include <mruby/variable.h>
#include <mruby/string.h>
#include <mruby/hash.h>
#include <mruby/throw.h>
#include <string.h>
// raylib stuff
#include <raylib.h>
#include <raymath.h>
// emscripten/wasm stuff
#ifdef PLATFORM_WEB
#include <emscripten/emscripten.h>
#include <emscripten/html5.h>
#endif
// other stuff
#ifndef FLT_MAX
#define FLT_MAX 3.40282347E+38F
#endif
// internal wkndr stuff
#include "mrb_web_socket.h"
#include "mrb_stack_blocker.h"
#include "mrb_game_loop.h"
#include "mrb_model.h"
#include "mrb_editor.h"
// ruby lib stuff
#include "globals.h"
#include "stack_blocker.h"
#include "markaby.h"
#include "wkndr.h"
#include "ecs.h"
#include "client_side.h"
#include "game_loop.h"
#include "socket_stream.h"
#include "camera.h"
#include "aabb.h"
#include "polygon.h"
#include "shape_proxy.h"
//server stuff
#ifdef TARGET_HEAVY
#include "connection.h"
#include "server.h"
#include "server_side.h"
#include "uv_io.h"
#include "wslay_socket_stream.h"
#include "embed_static.h"
#include "protocol.h"
#include "mrb_uv.h"
#endif
//#define DEBUG 0
/* See LICENSE for licence details. */
/* color: index number of color_palette[] (see color.h) */
enum {
DEFAULT_FG = 7,
DEFAULT_BG = 0,
ACTIVE_CURSOR_COLOR = 2,
PASSIVE_CURSOR_COLOR = 1,
};
/* misc */
enum {
DEBUG = false, /* write dump of input to stdout, debug message to stderr */
TABSTOP = 8, /* hardware tabstop */
//LAZY_DRAW = false, /* don't draw when input data size is larger than BUFSIZE */
//BACKGROUND_DRAW = true, /* always draw even if vt is not active */
//WALLPAPER = true, /* copy framebuffer before startup, and use it as wallpaper */
SUBSTITUTE_HALF = 0xFFFD, /* used for missing glyph(single width): U+FFFD (REPLACEMENT CHARACTER)) */
SUBSTITUTE_WIDE = 0x3013, /* used for missing glyph(double width): U+3013 (GETA MARK) */
REPLACEMENT_CHAR = 0xFFFD, /* used for malformed UTF-8 sequence : U+FFFD (REPLACEMENT CHARACTER) */
};
/* TERM value */
const char *term_name = "yaft-256color";
//////* shell */
/////#if defined(__linux__) || defined(__MACH__)
///// const char *shell_cmd = "/bin/bash";
/////#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__)
///// const char *shell_cmd = "/bin/csh";
/////#elif defined(__ANDROID__)
///// const char *shell_cmd = "/system/bin/sh"; /* for Android: not tested */
/////#endif
typedef struct {
mrb_state* mrb_pointer;
struct RObject* self_pointer;
} loop_data_s;
static void crisscross_data_destructor(mrb_state *mrb, void *p_);
const struct mrb_data_type crisscross_data_type = {"crisscross_data", crisscross_data_destructor};
//TODO: make this work
static void
print_backtrace_XXX(mrb_state *mrb, struct RObject *exc, struct RArray *backtrace)
{
mrb_int i;
mrb_int n = (backtrace ? ARY_LEN(backtrace) : 0);
mrb_value *loc, mesg;
if (n != 0) {
if (n > 1) {
fputs("trace (most recent call last):\n", stderr);
}
for (i=n-1,loc=&ARY_PTR(backtrace)[i]; i>0; i--,loc--) {
if (mrb_string_p(*loc)) {
fprintf(stderr, "\t[%d] ", (int)i);
fwrite(RSTRING_PTR(*loc), (int)RSTRING_LEN(*loc), 1, stderr);
fputc('\n', stderr);
}
}
if (mrb_string_p(*loc)) {
fwrite(RSTRING_PTR(*loc), (int)RSTRING_LEN(*loc), 1, stderr);
fputs(": ", stderr);
}
}
else {
fputs("(unknown):0: ", stderr);
}
if (exc == mrb->nomem_err) {
static const char nomem[] = "Out of memory (NoMemoryError)\n";
fwrite(nomem, sizeof(nomem)-1, 1, stderr);
}
else {
mesg = mrb_exc_inspect(mrb, mrb_obj_value(exc));
fwrite(RSTRING_PTR(mesg), RSTRING_LEN(mesg), 1, stderr);
fputc('\n', stderr);
}
}
struct backtrace_location {
int32_t lineno;
mrb_sym method_id;
const char *filename;
};
static const mrb_data_type bt_type = { "Backtrace", mrb_free };
struct RObject*
mrb_unpack_backtrace_XXX(mrb_state *mrb, struct RObject *backtrace)
{
const struct backtrace_location *bt;
mrb_int n, i;
int ai;
if (backtrace == NULL) {
empty_backtrace:
return mrb_obj_ptr(mrb_ary_new_capa(mrb, 0));
}
if (backtrace->tt == MRB_TT_ARRAY) return backtrace;
bt = (struct backtrace_location*)mrb_data_check_get_ptr(mrb, mrb_obj_value(backtrace), &bt_type);
if (bt == NULL) goto empty_backtrace;
n = (mrb_int)backtrace->flags;
if (n == 0) goto empty_backtrace;
backtrace = mrb_obj_ptr(mrb_ary_new_capa(mrb, n));
ai = mrb_gc_arena_save(mrb);
for (i = 0; i < n; i++) {
const struct backtrace_location *entry = &bt[i];
mrb_value btline;
if (entry->lineno != -1) {//debug info was available
btline = mrb_format(mrb, "%s:%d", entry->filename, (int)entry->lineno);
}
else { //all that was left was the stack frame
btline = mrb_format(mrb, "%s:0", entry->filename);
}
if (entry->method_id != 0) {
mrb_str_cat_lit(mrb, btline, ":in ");
mrb_str_cat_cstr(mrb, btline, mrb_sym_name(mrb, entry->method_id));
}
mrb_ary_push(mrb, mrb_obj_value(backtrace), btline);
mrb_gc_arena_restore(mrb, ai);
}
return backtrace;
}
MRB_API void
mrb_print_backtrace_XXX(mrb_state *mrb)
{
if (!mrb->exc || mrb->exc->tt != MRB_TT_EXCEPTION) {
return;
}
struct RObject *backtrace = ((struct RException*)mrb->exc)->backtrace;
if (backtrace && backtrace->tt != MRB_TT_ARRAY) backtrace = mrb_unpack_backtrace_XXX(mrb, backtrace);
print_backtrace_XXX(mrb, mrb->exc, (struct RArray*)backtrace);
}
MRB_API void
mrb_print_error_XXX(mrb_state *mrb)
{
//if (mrb->jmp == NULL) {
// struct mrb_jmpbuf c_jmp;
// MRB_TRY(&c_jmp) {
// mrb->jmp = &c_jmp;
// mrb_print_backtrace(mrb);
// } MRB_CATCH(&c_jmp) {
// /* ignore exception during print_backtrace() */
// } MRB_END_EXC(&c_jmp);
// mrb->jmp = NULL;
//}
//else {
mrb_print_backtrace_XXX(mrb);
//}
}
static void if_exception_error_and_exit(mrb_state* mrb, char *context) {
// check for exception, only one can exist at any point in time
if (mrb->exc) {
fprintf(stderr, "Exception in %s", context);
mrb_print_error_XXX(mrb);
mrb_print_backtrace(mrb);
exit(2);
}
}
//TODO
static void crisscross_data_destructor(mrb_state *mrb, void *p_) {
}
mrb_value wkndr_log(mrb_state* mrb, mrb_value self) {
mrb_value msg = mrb_nil_value();
mrb_get_args(mrb, "o", &msg);
mrb_value msg_inspected = mrb_funcall(mrb, msg, "inspect", 0);
fprintf(stderr, "%s\n", RSTRING_PTR(msg_inspected));
return mrb_true_value();
}
//TODO
mrb_value cheese_cross(mrb_state* mrb, mrb_value self) {
loop_data_s *loop_data = NULL;
mrb_value data_value = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@flip_pointer"));
Data_Get_Struct(mrb, data_value, &crisscross_data_type, loop_data);
if (!loop_data) {
mrb_raise(mrb, E_RUNTIME_ERROR, "Could not access @flip_pointer");
}
/*
//TODO
//TODO.... pass
//printf("wtf22222\n");
//this block is called in a fast loop
if (mrb->exc) {
mrb_print_error_XXX(mrb);
}
if (loop_data->mrb_pointer->exc) {
fprintf(stderr, "Exception in SERVER_SIDE_TRY_CRISS_CROSS_PROCESS_STACKS!\n");
mrb_print_error_XXX(loop_data->mrb_pointer);
//mrb_print_error(loop_data->mrb_pointer);
//mrb_print_backtrace(loop_data->mrb_pointer);
////mrb_value mesg = mrb_exc_inspect(mrb, mrb_obj_value(mrb->exc));
mrb_value mesg = mrb_funcall(loop_data->mrb_pointer, mrb_obj_value(loop_data->mrb_pointer->exc), "inspect", 0);
editorSetStatusMessage(RSTRING_PTR(mesg));
//TODO: exit runtime, unhandled exception
//CloseSurface();
//CloseWindow();
//return mrb_false_value();
}
*/
mrb_value wiz_return_halt = mrb_nil_value();
//TODO: !!!! wiz_return_halt = mrb_funcall(loop_data->mrb_pointer, mrb_obj_value(loop_data->self_pointer), "process_stacks!", 0, 0);
wiz_return_halt = mrb_funcall(loop_data->mrb_pointer, mrb_obj_value(loop_data->self_pointer), "process_stacks!", 0, 0);
/*
struct mrb_jmpbuf *prev_jmp = loop_data->mrb_pointer->jmp;
struct mrb_jmpbuf c_jmp;
int err = 1;
MRB_TRY(&c_jmp) {
loop_data->mrb_pointer->jmp = &c_jmp;
//body(loop_data->mrb_pointer, opaque);
wiz_return_halt = mrb_funcall(loop_data->mrb_pointer, mrb_obj_value(loop_data->self_pointer), "process_stacks!", 0, 0);
//mrb_value wiz_return_halt2 = mrb_funcall(loop_data->mrb_pointer, mrb_obj_value(loop_data->self_pointer), "fiberz", 0, 0);
err = 0;
} MRB_CATCH(&c_jmp) {
if (loop_data->mrb_pointer->exc) {
//mrb_print_error(mrb);
fprintf(stderr, "Exception in SERVER_SIDE_TRY_CRISS_CROSS_PROCESS_STACKS!\n");
mrb_print_error_XXX(loop_data->mrb_pointer);
loop_data->mrb_pointer->exc = NULL;
} else {
//TODO
}
} MRB_END_EXC(&c_jmp);
loop_data->mrb_pointer->jmp = prev_jmp;
*/
//if (loop_data->mrb_pointer->exc) {
// fprintf(stderr, "Exception in SERVER_SIDE_TRY_CRISS_CROSS_PROCESS_STACKS_FIBERZ!\n");
// mrb_print_error_XXX(loop_data->mrb_pointer);
// //mrb_print_error(loop_data->mrb_pointer);
// //mrb_print_backtrace(loop_data->mrb_pointer);
// ////mrb_value mesg = mrb_exc_inspect(mrb, mrb_obj_value(mrb->exc));
// mrb_value mesg = mrb_funcall(loop_data->mrb_pointer, mrb_obj_value(loop_data->mrb_pointer->exc), "inspect", 0);
// editorSetStatusMessage(RSTRING_PTR(mesg));
// //TODO: exit runtime, unhandled exception
// //CloseSurface();
// //CloseWindow();
// //return mrb_false_value();
//}
return wiz_return_halt;
//return mrb_nil_value();
}
static mrb_value eval_static_libs(mrb_state* mrb, ...) {
va_list argp;
va_start(argp, mrb);
int end_of_static_libs = 0;
uint8_t const *p;
mrb_value ret;
while(!end_of_static_libs) {
p = va_arg(argp, uint8_t const*);
if (NULL == p) {
end_of_static_libs = 1;
} else {
ret = mrb_load_irep(mrb, p);
if_exception_error_and_exit(mrb, "bundled ruby static lib\n");
}
}
va_end(argp);
return ret;
}
#ifdef PLATFORM_WEB
EMSCRIPTEN_KEEPALIVE
size_t handle_js_websocket_event(mrb_state* mrb, struct RObject* selfP, char* buf, size_t n) {
mrb_value empty_string = mrb_str_new_lit(mrb, "");
mrb_value clikestr_as_string = mrb_str_cat(mrb, empty_string, buf, n);
mrb_funcall(mrb, mrb_obj_value(selfP), "dispatch_next_events", 1, clikestr_as_string);
return 0;
}
char last_typed = 0;
EMSCRIPTEN_KEEPALIVE
size_t pack_outbound_tty(mrb_state* mrb, struct RObject* selfP, char *buf) {
//TODO: do other stuff with this websocket bit
//......... pipe remote process shell through???????? !!!!!
//int i = 0;
//int n = strlen(buf);
//if (n == 0) {
// return 0;
//}
//mrb_value data_value;
//data_value = mrb_iv_get(mrb, mrb_obj_value(selfP), mrb_intern_lit(mrb, "@client"));
//mrb_int fp = mrb_int(mrb, data_value);
//void (*write_packed_pointer)(int, const void*, int) = (void (*)(int, const void*, int))fp;
////fprintf(stderr, "FOOOO %ld %ld\n", n, buf[0]);
////write_packed_pointer(0, buf, strlen(buf));
//struct abuf *ab2 = malloc(sizeof(struct abuf));
//ab2->b = NULL;
//ab2->len = 0;
//if ((n > 2) && (buf[1] == 'O' || buf[1] == '[')) {
// int bbb = 0;
// buf = (buf + 1); // ... YEAaahahAHAa + sunglasses + explosion
// //DEL OVERIDE 1008 [ 3 ~
// if (buf[0] == '[') { /* ESC [ sequences. */
// if (buf[1] >= '0' && buf[1] <= '9') {
// if (buf[2] == '~') { /* Extended escape, read additional byte. */
// switch(buf[1]) {
// case '3': bbb = DEL_KEY; break;
// case '5': bbb = PAGE_UP; break;
// case '6': bbb = PAGE_DOWN; break;
// }
// }
// } else {
// switch(buf[1]) {
// case 'A': bbb = ARROW_UP; break;
// case 'B': bbb = ARROW_DOWN; break;
// case 'C': bbb = ARROW_RIGHT; break;
// case 'D': bbb = ARROW_LEFT; break;
// case 'H': bbb = HOME_KEY; break;
// case 'F': bbb = END_KEY; break;
// }
// }
// } else if (buf[0] == 'O') { /* ESC O sequences. */
// switch(buf[1]) {
// case 'H': bbb = HOME_KEY; break;
// case 'F': bbb = END_KEY; break;
// }
// }
// if (bbb) {
// editorProcessKeypress(bbb);
// } else {
// fprintf(stderr, "WTF %d\n", buf[0]);
// }
//} else {
// if (
// buf[0] == 12 ||
// buf[0] == 13 ||
// buf[0] == 19 ||
// buf[0] > 31) {
// for (int i=0; i<n; i++) {
// editorProcessKeypress(buf[i]);
// }
// } else if (
// buf[0] == 24
// ) {
// ////////////
// //run Wkndrfile
// mrb_value empty_string = mrb_str_new_lit(mrb, "");
// int codelen;
// char *codebuf = editorRowsToString(&codelen);
// mrb_value clikestr_as_string = mrb_str_cat(mrb, empty_string, codebuf, codelen);
// mrb_value editr_eval = mrb_funcall(mrb, mrb_obj_value(mrb_class_get(mrb, "Wkndr")), "wkndr_client_eval", 1, clikestr_as_string);
// if (mrb->exc) {
// //mrb_print_error(mrb_client);
// //mrb_print_backtrace(mrb_client);
// //mrb_value mesg = mrb_exc_inspect(mrb, mrb_obj_value(mrb->exc));
// //mrb_value mesg = mrb_funcall(mrb, mrb_obj_value(mrb->exc), "inspect", 0);
// //editorSetStatusMessage(RSTRING_PTR(mesg));
// //"XXX %.*s\n", (int)RSTRING_LEN(mesg), RSTRING_PTR(mesg));
// } else {
// if (!mrb_nil_p(editr_eval)) {
// mrb_value rezstr = mrb_funcall(mrb, editr_eval, "to_s", 0);
// const char *foo = mrb_string_value_ptr(mrb, rezstr);
// int len = mrb_string_value_len(mrb, rezstr);
// editorSetStatusMessage(foo, len);
// }
// }
// }
//}
////mrb_sym sym = mrb_intern_lit(mrb, "$cheese");
////mrb_value varff = mrb_gv_get(mrb, sym);
////const char *foofff = mrb_string_value_ptr(mrb, varff);
////int lenfff = mrb_string_value_len(mrb, varff);
////editorSetStatusMessage(foofff, lenfff);
////editorRefreshScreen(ab2);
////Image fooBuf = terminalRender(ab2->b, ab2->len);
////Texture2D thisTerm = LoadTextureFromImage(fooBuf);
////DrawTexture(thisTerm, 0, 0, WHITE);
///////////This is the websocket back to render xtermjs!!! !!!! write_packed_pointer(0, ab2->b, ab2->len);
//free(ab2);
/////////This is the websocket back to !!!!! js !!!!!!! write_packed_pointer(0, ab2->b, ab2->len);
return 0;
}
EMSCRIPTEN_KEEPALIVE
size_t resize_tty(mrb_state* mrb, struct RObject* selfP, int w, int h, int r, int c) {
//TODO: this happens client-side... no ws needed
//TODO support remove vt100 tty
// mrb_value outbound_resize_msg = mrb_ary_new(mrb);
// //mrb_ary_push(mrb, outbound_resize_msg, mrb_fixnum_value(cols));
// //mrb_ary_push(mrb, outbound_resize_msg, mrb_fixnum_value(rows));
// mrb_ary_push(mrb, outbound_resize_msg, mrb_fixnum_value(w));
// mrb_ary_push(mrb, outbound_resize_msg, mrb_fixnum_value(h));
// //TODO: determine if resize event made sense ....!!!!????
// //mrb_value outbound_msg = mrb_hash_new(mrb);
// //mrb_hash_set(mrb, outbound_msg, mrb_fixnum_value(3), outbound_resize_msg);
// //mrb_funcall(mrb, mrb_obj_value(selfP), "write_typed", 1, outbound_msg);
//fprintf(stdout, "WTFRESIZETTY!!!!!\n")
//fprintf(stdout, "WTFRESIZETTY!!!!!\n")
//fprintf(stdout, "WTFRESIZETTY!!!!!\n")
if (IsWindowReady()) {
SetWindowSize(w, h);
}
updateWindowSize(r, c); //TODO: window resize!!!
mrb_value data_value;
data_value = mrb_iv_get(mrb, mrb_obj_value(selfP), mrb_intern_lit(mrb, "@client"));
if (mrb_nil_p(data_value)) {
} else {
mrb_int fp = mrb_int(mrb, data_value);
void (*write_packed_pointer)(int, const void*, int) = (void (*)(int, const void*, int))fp;
struct abuf *ab = malloc(sizeof(struct abuf) * 1);
ab->b = NULL; //malloc(sizeof(char *) * 0);
ab->len = 0;
editorRefreshScreen(ab);
write_packed_pointer(0, ab->b, ab->len);
free(ab);
}
return 0;
}
EMSCRIPTEN_KEEPALIVE
size_t socket_connected(mrb_state* mrb, struct RObject* selfP, const char* buf, size_t n) {
mrb_value empty_string = mrb_str_new_lit(mrb, "");
mrb_value clikestr_as_string = mrb_str_cat(mrb, empty_string, buf, n);
mrb_funcall(mrb, mrb_obj_value(selfP), "did_connect", 1, clikestr_as_string);
return 0;
}
// Function to trigger alerts straight from C++
EMSCRIPTEN_KEEPALIVE
void Alert(const char *msg) {
EM_ASM_ARGS({
var msg = Pointer_stringify($0); // Convert message to JS string
alert(msg); // Use JS version of alert
}, msg);
}
#endif
mrb_value socket_stream_connect(mrb_state* mrb, mrb_value self) {
long int start_connection_js_c = 0;
//write_packed_pointer is created in js, as addFunction
#ifdef PLATFORM_WEB
start_connection_js_c = EM_ASM_INT({
return window.startConnection($0, $1);
}, mrb, mrb_obj_ptr(self));
#endif
mrb_iv_set(
mrb, self, mrb_intern_lit(mrb, "@client"), // set @data
mrb_fixnum_value(start_connection_js_c));
return self;
}
mrb_value socket_stream_write_packed(mrb_state* mrb, mrb_value self) {
mrb_value data_value;
data_value = mrb_iv_get(mrb, self, mrb_intern_lit(mrb, "@client"));
mrb_int fp = mrb_int(mrb, data_value);
void (*write_packed_pointer)(int, const void*, int) = (void (*)(int, const void*, int))fp;
mrb_value packed_bytes;
mrb_get_args(mrb, "o", &packed_bytes);
const char *foo = mrb_string_value_ptr(mrb, packed_bytes);
int len = mrb_string_value_len(mrb, packed_bytes);
//NOTE: this is sent to the JS for outbound on a websocket connect !!!
write_packed_pointer(1, foo, len);
return self;
}
void platform_bits_update_void(void* arg) {
loop_data_s* loop_data = arg;
mrb_state* mrb = loop_data->mrb_pointer;
struct RObject* self = loop_data->self_pointer;
mrb_value selfV = mrb_obj_value(self);
//fprintf(stderr, "void platform_bits_update_void 222\n");
platform_bits_signal(mrb, selfV);
}
mrb_value global_show(mrb_state* mrb, mrb_value self) {
mrb_value stack_self;
mrb_get_args(mrb, "o", &stack_self);
loop_data_s* loop_data = (loop_data_s*)malloc(sizeof(loop_data_s));
loop_data->mrb_pointer = mrb;
loop_data->self_pointer = mrb_obj_ptr(stack_self);
#ifdef PLATFORM_WEB
emscripten_set_main_loop_arg(platform_bits_update_void, loop_data, 0, 1);
emscripten_set_main_loop_timing(EM_TIMING_RAF, 1);
#endif
return self;
}
#include "gifsave89.h"
#include "glyph/glyph.h"
#include "glyph/ambiguous_half.h"
#include "glyph/ambiguous_wide.h"
enum {
//TERM_WIDTH = 640,
//TERM_HEIGHT = 384,
TERM_COLS = 80,
TERM_ROWS = 24,
INPUT_SIZE = 1,
MIN_DELAY = 5,
};
enum char_code {
/* 7 bit */
BEL = 0x07, BS = 0x08, HT = 0x09,
LF = 0x0A, VT = 0x0B, FF = 0x0C,
CR = 0x0D, ESCT = 0x1B, DEL = 0x7F,
/* others */
SPACE = 0x20,
BACKSLASH = 0x5C,
};
enum misc {
BUFSIZE = 1024, /* read, esc, various buffer size */
BITS_PER_BYTE = 8,
BYTES_PER_PIXEL = 3, /* pixel size of sixel bitmap data */
BITS_PER_SIXEL = 6, /* number of bits of a sixel */
ESCSEQ_SIZE = 1024, /* limit size of terminal escape sequence */
SELECT_TIMEOUT = 15000, /* used by select() */
MAX_ARGS = 16, /* max parameters of csi/osc sequence */
COLORS = 256, /* number of color */
UCS2_CHARS = 0x10000, /* number of UCS2 glyph */
CTRL_CHARS = 0x20, /* number of ctrl_func */
ESC_CHARS = 0x80, /* number of esc_func */
DRCS_CHARSETS = 63, /* number of charset of DRCS (according to DRCSMMv1) */
GLYPH_PER_CHARSET = 96, /* number of glyph of each DRCS charset */
DEFAULT_CHAR = SPACE, /* used for erase char */
BRIGHT_INC = 8, /* value used for brightening color */
OSC_GWREPT = 8900, /* OSC Ps: mode number of yaft GWREPT */
};
enum char_attr {
ATTR_RESET = 0,
ATTR_BOLD = 1, /* brighten foreground */
ATTR_UNDERLINE = 4,
ATTR_BLINK = 5, /* brighten background */
ATTR_REVERSE = 7,
};
const uint8_t attr_mask[] = {
0x00, 0x01, 0x00, 0x00, /* 0:none 1:bold 2:none 3:none */
0x02, 0x04, 0x00, 0x08, /* 4:underline 5:blink 6:none 7:reverse */
};
const uint32_t bit_mask[] = {
0x00,
0x01, 0x03, 0x07, 0x0F,
0x1F, 0x3F, 0x7F, 0xFF,
0x1FF, 0x3FF, 0x7FF, 0xFFF,
0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF,
0x1FFFF, 0x3FFFF, 0x7FFFF, 0xFFFFF,
0x1FFFFF, 0x3FFFFF, 0x7FFFFF, 0xFFFFFF,
0x1FFFFFF, 0x3FFFFFF, 0x7FFFFFF, 0xFFFFFFF,
0x1FFFFFFF, 0x3FFFFFFF, 0x7FFFFFFF, 0xFFFFFFFF,
};
enum term_mode {
MODE_RESET = 0x00,
MODE_ORIGIN = 0x01, /* origin mode: DECOM */
MODE_CURSOR = 0x02, /* cursor visible: DECTCEM */
MODE_AMRIGHT = 0x04, /* auto wrap: DECAWM */
};
enum esc_state {
STATE_RESET = 0x00,
STATE_ESC = 0x01, /* 0x1B, \033, ESC */
STATE_CSI = 0x02, /* ESC [ */
STATE_OSC = 0x04, /* ESC ] */
STATE_DCS = 0x08, /* ESC P */
};
enum glyph_width_t {
NEXT_TO_WIDE = 0,
HALF,
WIDE,
};
struct margin { uint16_t top, bottom; };
struct point_t { uint16_t x, y; };
struct color_pair_t { uint8_t fg, bg; };
struct cell_t {
const struct glyph_t *glyphp; /* pointer to glyph */
struct color_pair_t color_pair; /* color (fg, bg) */
enum char_attr attribute; /* bold, underscore, etc... */
enum glyph_width_t width; /* wide char flag: WIDE, NEXT_TO_WIDE, HALF */
bool has_bitmap;
/* must be statically allocated for copy_cell() */
uint8_t bitmap[BYTES_PER_PIXEL * CELL_WIDTH * CELL_HEIGHT];
};
struct esc_t {
char *buf;
char *bp;
int size;
enum esc_state state;
};
struct charset_t {
uint32_t code; /* UCS4 code point: yaft only prints UCS2 and DRCSMMv1 */
int following_byte, count;
bool is_valid;
};
struct state_t { /* for save, restore state */
struct point_t cursor;
enum term_mode mode;
enum char_attr attribute;
};
struct sixel_canvas_t {
uint8_t *bitmap;
struct point_t point;
int width, height;
int line_length;
uint8_t color_index;
uint32_t color_table[COLORS];
};
struct terminal {
int fd; /* master fd */
int width, height; /* terminal size (pixel) */
int cols, lines; /* terminal size (cell) */
struct cell_t *cells; /* pointer to each cell: cells[cols + lines * num_of_cols] */
struct margin scroll; /* scroll margin */
struct point_t cursor; /* cursor pos (x, y) */
bool *line_dirty; /* dirty flag */
bool *tabstop; /* tabstop flag */
enum term_mode mode; /* for set/reset mode */
bool wrap_occured; /* whether auto wrap occured or not */
struct state_t state; /* for restore */
struct color_pair_t color_pair; /* color (fg, bg) */
enum char_attr attribute; /* bold, underscore, etc... */
struct charset_t charset; /* store UTF-8 byte stream */
struct esc_t esc; /* store escape sequence */
uint32_t color_palette[COLORS]; /* 256 color palette */
const struct glyph_t *glyph_map[UCS2_CHARS]; /* array of pointer to glyphs[] */
struct glyph_t *drcs[DRCS_CHARSETS]; /* DRCS chars */
struct sixel_canvas_t sixel;
};
struct parm_t { /* for parse_arg() */
int argc;
char *argv[MAX_ARGS];
};
int (*my_wcwidth)(uint32_t ucs);
struct pseudobuffer {
uint8_t *buf; /* copy of framebuffer */
int width, height; /* display resolution */
int line_length; /* line length (byte) */
int bytes_per_pixel; /* BYTES per pixel */
};
/* See LICENSE for licence details. */
enum gif_option {
GIF_REPEAT = 1,
GIF_DELAY = 0,
GIF_TRANSPARENT = 0,
GIF_DISPOSAL = 2,
};
enum cmap_bitfield {
RED_SHIFT = 5,
GREEN_SHIFT = 2,
BLUE_SHIFT = 0,
RED_MASK = 3,
GREEN_MASK = 3,
BLUE_MASK = 2
};
struct gif_t {
void *data;
unsigned char *image;
int colormap[COLORS * BYTES_PER_PIXEL + 1];
};
const uint32_t color_list[256] = {
/* system color: 16 */
0x000000, 0xAA0000, 0x00AA00, 0xAA5500, 0x0000AA, 0xAA00AA, 0x00AAAA, 0xAAAAAA/* 0xAAAAAA */,
0x555555, 0xFF5555, 0x55FF55, 0xFFFF55, 0x5555FF, 0xFF55FF, 0x55FFFF, 0xDFDFDF/* 0xFFFFFF */,
/* color cube: 216 */
0x000000, 0x00005F, 0x000087, 0x0000AF, 0x0000D7, 0x0000FF, 0x005F00, 0x005F5F,
0x005F87, 0x005FAF, 0x005FD7, 0x005FFF, 0x008700, 0x00875F, 0x008787, 0x0087AF,
0x0087D7, 0x0087FF, 0x00AF00, 0x00AF5F, 0x00AF87, 0x00AFAF, 0x00AFD7, 0x00AFFF,
0x00D700, 0x00D75F, 0x00D787, 0x00D7AF, 0x00D7D7, 0x00D7FF, 0x00FF00, 0x00FF5F,
0x00FF87, 0x00FFAF, 0x00FFD7, 0x00FFFF, 0x5F0000, 0x5F005F, 0x5F0087, 0x5F00AF,
0x5F00D7, 0x5F00FF, 0x5F5F00, 0x5F5F5F, 0x5F5F87, 0x5F5FAF, 0x5F5FD7, 0x5F5FFF,
0x5F8700, 0x5F875F, 0x5F8787, 0x5F87AF, 0x5F87D7, 0x5F87FF, 0x5FAF00, 0x5FAF5F,
0x5FAF87, 0x5FAFAF, 0x5FAFD7, 0x5FAFFF, 0x5FD700, 0x5FD75F, 0x5FD787, 0x5FD7AF,
0x5FD7D7, 0x5FD7FF, 0x5FFF00, 0x5FFF5F, 0x5FFF87, 0x5FFFAF, 0x5FFFD7, 0x5FFFFF,
0x870000, 0x87005F, 0x870087, 0x8700AF, 0x8700D7, 0x8700FF, 0x875F00, 0x875F5F,
0x875F87, 0x875FAF, 0x875FD7, 0x875FFF, 0x878700, 0x87875F, 0x878787, 0x8787AF,
0x8787D7, 0x8787FF, 0x87AF00, 0x87AF5F, 0x87AF87, 0x87AFAF, 0x87AFD7, 0x87AFFF,
0x87D700, 0x87D75F, 0x87D787, 0x87D7AF, 0x87D7D7, 0x87D7FF, 0x87FF00, 0x87FF5F,
0x87FF87, 0x87FFAF, 0x87FFD7, 0x87FFFF, 0xAF0000, 0xAF005F, 0xAF0087, 0xAF00AF,
0xAF00D7, 0xAF00FF, 0xAF5F00, 0xAF5F5F, 0xAF5F87, 0xAF5FAF, 0xAF5FD7, 0xAF5FFF,
0xAF8700, 0xAF875F, 0xAF8787, 0xAF87AF, 0xAF87D7, 0xAF87FF, 0xAFAF00, 0xAFAF5F,
0xAFAF87, 0xAFAFAF, 0xAFAFD7, 0xAFAFFF, 0xAFD700, 0xAFD75F, 0xAFD787, 0xAFD7AF,
0xAFD7D7, 0xAFD7FF, 0xAFFF00, 0xAFFF5F, 0xAFFF87, 0xAFFFAF, 0xAFFFD7, 0xAFFFFF,
0xD70000, 0xD7005F, 0xD70087, 0xD700AF, 0xD700D7, 0xD700FF, 0xD75F00, 0xD75F5F,
0xD75F87, 0xD75FAF, 0xD75FD7, 0xD75FFF, 0xD78700, 0xD7875F, 0xD78787, 0xD787AF,
0xD787D7, 0xD787FF, 0xD7AF00, 0xD7AF5F, 0xD7AF87, 0xD7AFAF, 0xD7AFD7, 0xD7AFFF,
0xD7D700, 0xD7D75F, 0xD7D787, 0xD7D7AF, 0xD7D7D7, 0xD7D7FF, 0xD7FF00, 0xD7FF5F,
0xD7FF87, 0xD7FFAF, 0xD7FFD7, 0xD7FFFF, 0xFF0000, 0xFF005F, 0xFF0087, 0xFF00AF,
0xFF00D7, 0xFF00FF, 0xFF5F00, 0xFF5F5F, 0xFF5F87, 0xFF5FAF, 0xFF5FD7, 0xFF5FFF,
0xFF8700, 0xFF875F, 0xFF8787, 0xFF87AF, 0xFF87D7, 0xFF87FF, 0xFFAF00, 0xFFAF5F,
0xFFAF87, 0xFFAFAF, 0xFFAFD7, 0xFFAFFF, 0xFFD700, 0xFFD75F, 0xFFD787, 0xFFD7AF,
0xFFD7D7, 0xFFD7FF, 0xFFFF00, 0xFFFF5F, 0xFFFF87, 0xFFFFAF, 0xFFFFD7, 0xFFFFFF,
/* gray scale: 24 */
0x080808, 0x121212, 0x1C1C1C, 0x262626, 0x303030, 0x3A3A3A, 0x444444, 0x4E4E4E,
0x585858, 0x626262, 0x6C6C6C, 0x767676, 0x808080, 0x8A8A8A, 0x949494, 0x9E9E9E,
0xA8A8A8, 0xB2B2B2, 0xBCBCBC, 0xC6C6C6, 0xD0D0D0, 0xDADADA, 0xE4E4E4, 0xEEEEEE,
};
void error(char *str)
{
//perror(str);
exit(EXIT_FAILURE);
}
void fatal(char *str)
{
fprintf(stderr, "%s\n", str);
exit(EXIT_FAILURE);
}
void *erealloc(void *ptr, size_t size)
{
void *new;
errno = 0;
if ((new = realloc(ptr, size)) == NULL)
error("realloc");
return new;
}
void *ecalloc(size_t nmemb, size_t size)
{
void *ptr;
errno = 0;
if ((ptr = calloc(nmemb, size)) == NULL)
error("calloc");
return ptr;
}
void ewrite(int fd, const void *buf, int size)
{
int ret;
errno = 0;
if ((ret = write(fd, buf, size)) < 0)
error("write");
else if (ret < size)
ewrite(fd, (char *) buf + ret, size - ret);
}
long estrtol(const char *nptr, char **endptr, int base)
{
long int ret;
errno = 0;
ret = strtol(nptr, endptr, base);
if (ret == LONG_MIN || ret == LONG_MAX) {
perror("strtol");
return 0;
}
return ret;
}
int dec2num(char *str)
{
if (str == NULL)
return 0;
return estrtol(str, NULL, 10);
}
/* See LICENSE for licence details. */