Extend RGBASM and RGBLINK verbosity flags to have multiple levels like RGBGFX (#1772)

src/verbosity.cpp

@@ -0,0 +1,69 @@
+#include "verbosity.hpp"
+
+#include <array>
+#include <bitset>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdio.h>
+
+static Verbosity verbosity = VERB_NONE;
+
+void incrementVerbosity() {
+	if (verbosity < VERB_VVVVVV) {
+		verbosity = static_cast<Verbosity>(verbosity + 1);
+	}
+}
+
+bool checkVerbosity(Verbosity level) {
+	return verbosity >= level;
+}
+
+void printVVVVVVerbosity() {
+	if (!checkVerbosity(VERB_VVVVVV)) {
+		return;
+	}
+
+	putc('\n', stderr);
+	// clang-format off: vertically align values
+	static std::array<std::bitset<10>, 21> gfx{
+	    0b0111111110,
+	    0b1111111111,
+	    0b1110011001,
+	    0b1110011001,
+	    0b1111111111,
+	    0b1111111111,
+	    0b1110000001,
+	    0b1111000011,
+	    0b0111111110,
+	    0b0001111000,
+	    0b0111111110,
+	    0b1111111111,
+	    0b1111111111,
+	    0b1111111111,
+	    0b1101111011,
+	    0b1101111011,
+	    0b0011111100,
+	    0b0011001100,
+	    0b0111001110,
+	    0b0111001110,
+	    0b0111001110,
+	};
+	// clang-format on
+	static std::array<char const *, 3> textbox{
+	    "  ,----------------------------------------.",
+	    "  | Augh, dimensional interference again?! |",
+	    "  `----------------------------------------'",
+	};
+	for (size_t i = 0; i < gfx.size(); ++i) {
+		std::bitset<10> const &row = gfx[i];
+		for (uint8_t j = row.size(); j--;) {
+			// Double the pixel horizontally, otherwise the aspect ratio looks wrong
+			fputs(row[j] ? "00" : "  ", stderr);
+		}
+		if (i < textbox.size()) {
+			fputs(textbox[i], stderr);
+		}
+		putc('\n', stderr);
+	}
+	putc('\n', stderr);
+}