87 lines
2.2 KiB
C++
87 lines
2.2 KiB
C++
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#include "Win32Console.h"
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#include <cmath>
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static void CalcChar(CHAR_INFO& c, float color, uint16_t text) {
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constexpr wchar_t chars[] = L" .,:x!|X#%@$M";
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constexpr uint8_t attrs[] = {
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FOREGROUND_INTENSITY,
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BACKGROUND_INTENSITY,
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BACKGROUND_INTENSITY | FOREGROUND_RED,
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BACKGROUND_RED | FOREGROUND_INTENSITY,
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};
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constexpr size_t char_expr_count = sizeof(chars)/sizeof(chars[0])-1;
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constexpr size_t attr_expr_count = sizeof(attrs)/sizeof(attrs[0]);
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constexpr size_t reso = char_expr_count*attr_expr_count;
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/* post effect */
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color = std::pow(color, 1.9);
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int8_t a = static_cast<int8_t>(color*reso);
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if (a >= reso) a = reso-1;
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if (a < 0) a = 0;
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size_t ci = a%char_expr_count;
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size_t ai = a/char_expr_count;
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if (ai%2 == 1) ci = char_expr_count-ci-1;
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c.Char.UnicodeChar = chars[ci];
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c.Attributes = attrs[ai];
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if (text) c.Char.UnicodeChar = text;
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}
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void gj::Win32Console::main() {
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bool shown = false;
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while (alive_.load()) {
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if (shown_.load()) {
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if (!shown) {
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shown = true;
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ShowWindow(win_, TRUE);
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}
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constexpr CONSOLE_CURSOR_INFO cursor{ 1, FALSE };
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SetConsoleCursorInfo(screen_, &cursor);
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CHAR_INFO* c = chars_.get();
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{ /* critical section */
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std::lock_guard<std::mutex> _(mtx_);
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const float* cb = cb_main_.ptr();
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const char16_t* tb = tb_main_.ptr();
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for (uint32_t y = 0; y < h_; ++y) {
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bool mb = false;
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for (uint32_t x = 0; x < w_; ++x) {
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if (mb) {
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*c = *(c - 1);
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(c - 1)->Attributes |= COMMON_LVB_LEADING_BYTE;
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c->Attributes |= COMMON_LVB_TRAILING_BYTE;
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mb = false;
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} else {
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CalcChar(*c, *cb, *tb);
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mb = (*tb & 0x80);
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}
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++cb, ++tb, ++c;
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}
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}
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}
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const COORD size = { static_cast<SHORT>(w_), static_cast<SHORT>(h_), };
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const COORD pos = { 0, 0, };
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SMALL_RECT rc = { 0, 0, static_cast<SHORT>(w_), static_cast<SHORT>(h_), };
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WriteConsoleOutput(screen_, chars_.get(), size, pos, &rc);
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} else {
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if (shown) {
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ShowWindow(win_, FALSE);
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shown = false;
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}
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}
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Sleep(30);
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}
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}
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