Real-time conversion and Multi-thread support

Vid2Ascii/Gui.cpp

@@ -1,6 +1,7 @@
 #include <iostream>
 #include "Vid2Ascii.h"
 #include <windows.h>
+#include <cmath>
 
 #define NOMINMAX
 #define WIN32_LEAN_AND_MEAN
@@ -14,19 +15,42 @@ void Vid2Ascii::setCursorPosition(int x, int y)
 
 void Vid2Ascii::progressBar(int idx, int total_frames)
 {
-	float barWidth = 40;
-	float progress = idx * 1.0 / total_frames;
-	float pos = barWidth * progress;
+	/*
+		[#] - Current
+		[=] - Processed
+		[ ] - Unprocessed
+	*/
+	int num_ths;
+	(use_n_threads == 0) ? num_ths = 1 : num_ths = use_n_threads;
+
+	float max_frames = total_frames / num_ths;
 
-	std::cout << "[" << (int)(idx * 100) / total_frames << "%]";
+	int barWidth = 40;
+	float sub_section = barWidth / num_ths;
 
 	std::string bar;
-	bar += "[";
+	for (int i = 0; i < num_ths; i++) {
+		float processed_frames = (frames_processed[i] * 1.0 / max_frames) * sub_section;
+		processed_frames = round(processed_frames);
+		float unprocessed_frames = ((max_frames - frames_processed[i]) * 1.0 / max_frames) * sub_section;
+		unprocessed_frames = round(unprocessed_frames);
+
+		std::string processed(processed_frames, '=');
+		std::string unprocessed(unprocessed_frames, ' ');
+
+		bar += processed;
+		bar += unprocessed;
+	}
+
+	float progress = idx * 1.0 / total_frames;
+	int pos = barWidth * progress;
 	for (int i = 0; i < barWidth; i++) {
-		(i <= pos ? bar += "#" : bar += "=");
+		if (i <= pos)
+			bar[i] = '#';
 	}
-	bar += "]";
-	std::cout << bar << " " << idx << "/" << total_frames << "    ";
+	bar = '[' + std::to_string((int)(idx * 100) / total_frames) + "%][" + bar + "] ";
+	bar += std::to_string(idx) + '/' + std::to_string(total_frames) + "       ";
+	std::cout << bar;
 }
 
 void Vid2Ascii::display_adjustedOutputSize(int ascii_height, int ascii_width) 
@@ -41,7 +65,7 @@ void Vid2Ascii::display_adjustedOutputSize(int ascii_height, int ascii_width)
 	}
 }
 
-void Vid2Ascii::adjustOutputSize(float _resize_ratio, float _cell_height, float _cell_width)
+void Vid2Ascii::adjustOutput(float _resize_ratio, float _cell_height, float _cell_width, unsigned _use_n_threads)
 {
 	system("CLS");
 	output_vid.resize_ratio = _resize_ratio;
@@ -55,13 +79,15 @@ void Vid2Ascii::adjustOutputSize(float _resize_ratio, float _cell_height, float
 	output_vid.ascii_height = output_vid.height / _cell_height;
 	output_vid.ascii_width = output_vid.width / _cell_width;
 
+	use_n_threads = _use_n_threads;
+
 	int ascii_height = output_vid.ascii_height;
 	int ascii_width = output_vid.ascii_width;
 	display_adjustedOutputSize(ascii_height, ascii_width);
 
 	setCursorPosition(0, ascii_height + 1);
 	char res;
-	std::cout << "Resize output size? y/n -> ";
+	std::cout << "Resize output? y/n -> ";
 	std::cin >> res;
 	res = std::tolower(res);
 
@@ -78,6 +104,22 @@ void Vid2Ascii::adjustOutputSize(float _resize_ratio, float _cell_height, float
 		std::cout << "New cell height: ";
 		std::cin >> _cell_height;
 
-		adjustOutputSize(_resize_ratio, _cell_height, _cell_width);
+		if (max_threads != 0) {
+			std::cout << "---" << std::endl;
+			std::cout << "Current number of threads used: " << _use_n_threads << std::endl;
+			std::cout << "Max number of threads supported by your hardware: " << max_threads << std::endl;
+			std::cout << "Recommended number of threads to use: 1" << std::endl;
+			std::cout << "Use: ";
+			unsigned int num_ths;
+			std::cin >> num_ths;
+			if (num_ths > max_threads) {
+				std::cout << "Cannot have " << num_ths << " threads" << std::endl;
+			}
+			else {
+				_use_n_threads = num_ths;
+			}
+			std::cout << "---" << std::endl;
+		}
+		adjustOutput(_resize_ratio, _cell_height, _cell_width, _use_n_threads);
 	}
 }