Allow switching rendering mode in terminal on the fly

apps/sh.c

@@ -952,6 +952,14 @@ uint32_t shell_cmd_set(int argc, char * argv[]) {
 		printf("\033[1556;%sz", argv[2]);
 		fflush(stdout);
 		return 0;
+	} else if (!strcmp(argv[1], "sdf")) {
+		if (argc < 3) {
+			fprintf(stderr, "%s %s [sdf enabled, 1 = yes]\n", argv[0], argv[1]);
+			return 1;
+		}
+		printf("\033[1557;%sz", argv[2]);
+		fflush(stdout);
+		return 0;
 	} else if (!strcmp(argv[1], "size")) {
 		if (argc < 4) {
 			fprintf(stderr, "%s %s [width] [height]\n", argv[0], argv[1]);

apps/terminal-vga.c

@@ -136,6 +136,10 @@ static void set_term_font_size(float s) {
 	/* do nothing */
 }
 
+static void set_term_font_mode(int i) {
+	/* do nothing */
+}
+
 /* Returns the lower of two shorts */
 uint16_t min(uint16_t a, uint16_t b) {
 	return (a < b) ? a : b;
@@ -742,6 +746,7 @@ term_callbacks_t term_callbacks = {
 	unsupported_int,
 	term_set_csr_show,
 	set_term_font_size,
+	set_term_font_mode,
 };
 
 void reinit(int send_sig) {

apps/terminal.c

@@ -64,7 +64,6 @@ uint16_t term_height    = 0;    /* Height of the terminal (in cells) */
 uint16_t font_size      = 13;   /* Font size according to SDF library */
 uint16_t char_width     = 9;    /* Width of a cell in pixels */
 uint16_t char_height    = 20;   /* Height of a cell in pixels */
-uint16_t char_offset    = 0;    /* Offset of the font within the cell */
 int      csr_x          = 0;    /* Cursor X */
 int      csr_y          = 0;    /* Cursor Y */
 term_cell_t * term_buffer    = NULL; /* The terminal cell buffer */
@@ -143,6 +142,11 @@ static void set_term_font_gamma(float s) {
 	reinit(1);
 }
 
+static void set_term_font_mode(int i) {
+	_use_sdf = i;
+	reinit(1);
+}
+
 /* Returns the lower of two shorts */
 int32_t min(int32_t a, int32_t b) {
 	return (a < b) ? a : b;
@@ -1251,6 +1255,7 @@ term_callbacks_t term_callbacks = {
 	term_get_cell_height,
 	term_set_csr_show,
 	set_term_font_gamma,
+	set_term_font_mode,
 };
 
 void reinit(int send_sig) {
@@ -1263,6 +1268,9 @@ void reinit(int send_sig) {
 			char_height *= font_scaling;
 			char_width  *= font_scaling;
 		}
+	} else {
+		char_width = 9;
+		char_height = 20;
 	}
 
 	int old_width  = term_width;

base/usr/include/toaru/termemu.h

@@ -34,6 +34,7 @@ typedef struct {
 	int  (*get_cell_height)(void);
 	void (*set_csr_on)(int);
 	void (*set_font_gamma)(float);
+	void (*set_font_mode)(int);
 } term_callbacks_t;
 
 typedef struct {

lib/termemu.c

@@ -14,6 +14,7 @@ static void _spin_lock(volatile int * foo) { return; }
 static void _spin_unlock(volatile int * foo) { return; }
 # define rgba(r,g,b,a) (((uint32_t)a * 0x1000000) + ((uint32_t)r * 0x10000) + ((uint32_t)g * 0x100) + ((uint32_t)b * 0x1))
 # define rgb(r,g,b) rgba(r,g,b,0xFF)
+# define atof(i) (0.0f)
 #include <toaru/termemu.h>
 #else
 #include <stdlib.h>
@@ -190,6 +191,10 @@ static void _ansi_put(term_state_t * s, char c) {
 											callbacks->set_font_gamma(atof(argv[1]));
 										}
 										break;
+									case 1557:
+										if (argc > 1) {
+											callbacks->set_font_mode(atoi(argv[1]));
+										}
 									default:
 										break;
 								}

libc/main.c

@@ -94,8 +94,8 @@ static void _libc_init(void) {
 
 void pre_main(int (*main)(int,char**), int argc, char * argv[]) {
 	if (!__get_argv()) {
+		/* Statically loaded, must set __argv so __get_argv() works */
 		__argv = argv;
-		_libc_init();
 	}
 	_init();
 	_exit(main(argc, argv));

modules/vgalog.c

@@ -131,6 +131,10 @@ static void term_clear(int i) {
 	memset(textmemptr, 0x00, sizeof(unsigned short) * 80 * 25);
 }
 
+static void set_term_font_mode(int i) {
+	/* Do nothing */
+}
+
 int unsupported_int(void) { return 0; }
 void unsupported(int x, int y, char * data) { }
 
@@ -151,6 +155,8 @@ term_callbacks_t term_callbacks = {
 	unsupported_int,
 	unsupported_int,
 	term_set_csr_show,
+	set_term_font_size,
+	set_term_font_mode,
 };