Update Files

Kha/Kinc/Backends/System/Pi/Sources/kinc/backend/display.cpp

@@ -0,0 +1,94 @@
+#include <Kore/Log.h>
+
+#include "Display.h"
+
+#include <cstdio>
+#include <cstdlib>
+
+namespace Kore {
+	namespace Display {
+		void fatalError(const char *message) {
+			printf("main: %s\n", message);
+			exit(1);
+		}
+
+		enum { MAXIMUM_DISPLAY_COUNT = 10 };
+
+		DeviceInfo displays[MAXIMUM_DISPLAY_COUNT];
+		int displayCounter = -1;
+		bool initialized = false;
+
+		void enumDisplayMonitors(DeviceInfo screens[], int &displayCounter);
+
+		void enumerate() {
+			if (initialized) {
+				return;
+			}
+
+			initialized = true;
+			enumDisplayMonitors(displays, displayCounter);
+		}
+
+		int count() {
+			return displayCounter + 1;
+		}
+
+		int width(int index) {
+			return displays[index].width;
+		}
+
+		int height(int index) {
+			return displays[index].height;
+		}
+
+		int x(int index) {
+			return displays[index].x;
+		}
+
+		int y(int index) {
+			return displays[index].y;
+		}
+
+		bool isPrimary(int index) {
+			return displays[index].isPrimary;
+		}
+
+		const DeviceInfo *primaryScreen() {
+			for (int index = 0; index < MAXIMUM_DISPLAY_COUNT; ++index) {
+				const DeviceInfo &info = displays[index];
+
+				if (info.isAvailable && info.isPrimary) {
+					return &info;
+				}
+			}
+
+			if (!displays[0].isAvailable) {
+				log(Warning, "No display attached?");
+				// TODO (DK) throw exception?
+				return nullptr;
+			}
+
+			log(Warning, "No primary display defined, returning first display");
+			return &displays[0];
+		}
+
+		const DeviceInfo *screenById(int id) {
+			for (int index = 0; index < MAXIMUM_DISPLAY_COUNT; ++index) {
+				const DeviceInfo &info = displays[index];
+
+				if (info.number == id) {
+					return &info;
+				}
+			}
+
+			if (!displays[0].isAvailable) {
+				log(Warning, "No display available");
+				// TODO (DK) throw exception?
+				return nullptr;
+			}
+
+			log(Warning, "No display with id \"%i\" found, returning first display", id);
+			return &displays[0];
+		}
+	}
+}