Update console output

Make colored console output work in Windows.

TODO.md

@@ -1,5 +1,6 @@
 - [X] Improve logging (remove SDL/lws dependency)
 - [X] Unify memset/memcpy/free/malloc functions (remove SDL/lws dependency)
+- [ ] Revisit unit tests
 - [ ] Implement memory pool
 - [ ] Fix gamepad mapping
   - [ ] Provide default mapping

src/packages/compat/IZ_windows.h

@@ -3,6 +3,9 @@
 
 #ifndef IZ_WIN64
 typedef int errno_t;
+#else
+#include <io.h>
+#include <SDL_syswm.h>
 #endif
 
 #endif //IZ_WINDOWS_H

src/packages/game/data/IZ_list.c

@@ -62,6 +62,7 @@ void IZ_ListDeleteFirstNode(IZ_List* list, IZ_ListFindPredicate filter) {
 		return;
 	}
 
+	// FIXME Teardown having problems here
 	list->iterator = &list->root;
 	IZ_ListNode* previous_node = NULL;
 	u64 index = 0;

src/packages/game/data/data.test.c

@@ -27,7 +27,10 @@ spec("data") {
 			it("sets root to NULL") {
 				IZ_ListInitialize(&list);
 
-				check(list.root == NULL, "List not properly initialized.");
+				check(
+					list.root == NULL,
+					"List not properly initialized. Root: %p", list.root
+				);
 			}
 		}
 
@@ -52,10 +55,12 @@ spec("data") {
 			it("removes all nodes from the list") {
 				mock_set_expected_calls(IZ_free, 3);
 				IZ_ListTeardown(&list);
+				unsigned int expected_calls = mock_get_expected_calls(IZ_free);
+				unsigned int actual_calls = mock_get_actual_calls(IZ_free);
 
 				check(
-					mock_get_expected_calls(IZ_free) == mock_get_actual_calls(IZ_free),
-					"Deallocator function call count mismatch."
+					expected_calls == actual_calls,
+					"Deallocator function call count mismatch. Expected %u, got %u.", expected_calls, actual_calls
 				);
 			}
 		}
@@ -94,8 +99,9 @@ spec("data") {
 			it("appends new node to empty list and sets it as root") {
 				static u64 value = 69420u;
 				IZ_ListAppendNode(&list, &value);
+				u64 added_value = *((u64*) list.root->value);
 
-				check(*((u64*) list.root->value) == 69420u, "Node not properly appended.");
+				check(added_value == 69420u, "Node not properly appended. Value: %u", added_value);
 				check(
 					mock_is_called(IZ_malloc),
 					"Allocator function not called."
@@ -113,7 +119,7 @@ spec("data") {
 					mock_is_called(IZ_malloc),
 					"Allocator function not called."
 				);
-				check(list2.length == 2, "Length mismatch.");
+				check(list2.length == 2, "Length mismatch. Length: %u", list2.length);
 			}
 		}
 

src/packages/log/IZ_log.c

@@ -1,5 +1,45 @@
 #include "IZ_log.h"
 
+bool IZ_LogIsSupportedTerminal() {
+	bool result;
+	const char *term = getenv("TERM");
+	result = term && strcmp(term, "") != 0;
+#ifndef _WIN32
+	return result;
+#else
+	if (result) {
+		return 1;
+	}
+
+	// Attempt to enable virtual terminal processing on Windows.
+	// See: https://msdn.microsoft.com/en-us/library/windows/desktop/mt638032(v=vs.85).aspx
+	HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
+	if (hOut == INVALID_HANDLE_VALUE) {
+		return 0;
+	}
+
+	DWORD dwMode = 0;
+	if (!GetConsoleMode(hOut, &dwMode)) {
+		return 0;
+	}
+
+	dwMode |= 0x4; // ENABLE_VIRTUAL_TERMINAL_PROCESSING
+	if (!SetConsoleMode(hOut, dwMode)) {
+		return 0;
+	}
+
+	return 1;
+#endif
+}
+
+bool IZ_LogIsSupportedColor() {
+#ifdef IZ_WIN64
+	return _isatty(_fileno(stdout)) && IZ_LogIsSupportedTerminal();
+#else
+	return isatty(fileno(stdout)) && IZ_LogIsSupportedTerminal();
+#endif
+}
+
 void IZ_LogError(const char* fmt, ...) {
 #ifdef IZ_LOG_LEVEL_FLAG_ERROR
 	char buffer[4096];
@@ -7,7 +47,13 @@ void IZ_LogError(const char* fmt, ...) {
 	va_start(args, fmt);
 	vsnprintf(buffer, sizeof(buffer), fmt, args);
 	va_end(args);
-	fprintf(stderr, RED "%12s" RESET " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
+
+	if (IZ_LogIsSupportedColor()) {
+		fprintf(stdout, RED "%12s" RESET " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
+		return;
+	}
+
+	fprintf(stderr, "%12s" " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
 #endif
 }
 
@@ -19,18 +65,24 @@ void IZ_LogInfo(IZ_LogCategory category, const char* fmt, ...) {
 	vsnprintf(buffer, sizeof(buffer), fmt, args);
 	va_end(args);
 
-	switch (category) {
-		default:
-		case IZ_LOG_CATEGORY_GENERIC:
-			fprintf(stdout, CYN "%12s" RESET " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
-			break;
-		case IZ_LOG_CATEGORY_GLOBAL:
-			fprintf(stdout, MAG "%12s" RESET " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
-			break;
-		case IZ_LOG_CATEGORY_INPUT:
-			fprintf(stdout, GRN "%12s" RESET " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
-			break;
+	if (IZ_LogIsSupportedColor()) {
+		switch (category) {
+			default:
+			case IZ_LOG_CATEGORY_GENERIC:
+				fprintf(stdout, CYN "%12s" RESET " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
+				break;
+			case IZ_LOG_CATEGORY_GLOBAL:
+				fprintf(stdout, MAG "%12s" RESET " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
+				break;
+			case IZ_LOG_CATEGORY_INPUT:
+				fprintf(stdout, GRN "%12s" RESET " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
+				break;
+		}
+
+		return;
 	}
+
+	fprintf(stdout, "%12s" " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
 #endif
 }
 
@@ -42,11 +94,16 @@ void IZ_LogWarn(bool is_critical, const char* fmt, ...) {
 	vsnprintf(buffer, sizeof(buffer), fmt, args);
 	va_end(args);
 
-	if (is_critical) {
-		fprintf(stdout, WHT "%24s" RESET " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
-	} else {
-		fprintf(stdout, YEL "%24s" RESET " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
+	if (IZ_LogIsSupportedColor()) {
+		if (is_critical) {
+			fprintf(stdout, WHT "%24s" RESET " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
+		} else {
+			fprintf(stdout, YEL "%24s" RESET " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
+		}
+		return;
 	}
+
+	fprintf(stdout, "%24s" " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
 #endif
 }
 
@@ -57,7 +114,11 @@ void IZ_Log(const char* fmt, ...) {
 	va_start(args, fmt);
 	vsnprintf(buffer, sizeof(buffer), fmt, args);
 	va_end(args);
-	fprintf(stdout, BLU "%12s" RESET " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
+	if (IZ_LogIsSupportedColor()) {
+		fprintf(stdout, BLU "%12s" RESET " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
+		return;
+	}
 
+	fprintf(stdout, "%12s" " %s\n", IZ_LOG_DATE_FUNCTION(), buffer);
 #endif
 }

src/packages/log/IZ_log.h

@@ -1,19 +1,6 @@
 #ifndef IZ_LOG_H
 #define IZ_LOG_H
 
-#ifdef IZ_WIN64
-
-#define RED   ""
-#define GRN   ""
-#define YEL   ""
-#define BLU   ""
-#define MAG   ""
-#define CYN   ""
-#define WHT   ""
-#define RESET ""
-
-#else
-
 #define RED   "\x1B[31m"
 #define GRN   "\x1B[32m"
 #define YEL   "\x1B[33m"
@@ -23,13 +10,12 @@
 #define WHT   "\x1B[37m"
 #define RESET "\x1B[0m"
 
-#endif
-
 #define IZ_LOG_LEVEL_FLAG_DEBUG
 #define IZ_LOG_LEVEL_FLAG_INFO
 #define IZ_LOG_LEVEL_FLAG_WARN
 #define IZ_LOG_LEVEL_FLAG_ERROR
 
+#include "../compat/IZ_windows.h"
 #include <stdbool.h>
 #include <stdarg.h>
 #include <stdio.h>