Merge branch 'tmj-dev' into milek-dev

screenshot.cpp

@@ -0,0 +1,52 @@
+#include "stdafx.h"
+#include "screenshot.h"
+#include "Globals.h"
+#include "Logs.h"
+#include <png.h>
+
+void screenshot_manager::screenshot_save_thread( char *img )
+{
+	png_image png;
+	memset(&png, 0, sizeof(png_image));
+	png.version = PNG_IMAGE_VERSION;
+	png.width = Global.iWindowWidth;
+	png.height = Global.iWindowHeight;
+	png.format = PNG_FORMAT_RGB;
+
+	char datetime[64];
+	time_t timer;
+	struct tm* tm_info;
+	time(&timer);
+	tm_info = localtime(&timer);
+	strftime(datetime, 64, "%Y-%m-%d_%H-%M-%S", tm_info);
+
+	uint64_t perf;
+#ifdef _WIN32
+	QueryPerformanceCounter((LARGE_INTEGER*)&perf);
+#elif __linux__
+	timespec ts;
+	clock_gettime(CLOCK_REALTIME, &ts);
+	perf = ts.tv_nsec;
+#endif
+
+	std::string filename = Global.screenshot_dir + "/" + std::string(datetime) +
+	                       "_" + std::to_string(perf) + ".png";
+
+	if (png_image_write_to_file(&png, filename.c_str(), 0, img, -Global.iWindowWidth * 3, nullptr) == 1)
+		WriteLog("saved " + filename);
+	else
+		WriteLog("failed to save " + filename);
+
+	delete[] img;
+}
+
+void screenshot_manager::make_screenshot()
+{
+	char *img = new char[Global.iWindowWidth * Global.iWindowHeight * 3];
+	glReadPixels(0, 0, Global.iWindowWidth, Global.iWindowHeight, GL_RGB, GL_UNSIGNED_BYTE, (GLvoid*)img);
+	//m7t: use pbo
+
+	std::thread t(screenshot_save_thread, img);
+	t.detach();
+}
+