Added new deemphasis mode + new image widget

core/src/gui/widgets/image.h

@@ -0,0 +1,34 @@
+#pragma once
+
+#include <imgui.h>
+#include <imgui_internal.h>
+#include <dsp/stream.h>
+#include <mutex>
+#include <GL/glew.h>
+
+namespace ImGui {
+    class ImageDisplay {
+    public:
+        ImageDisplay(int width, int height, GLenum format);
+        ~ImageDisplay();
+        void draw(const ImVec2& size_arg = ImVec2(0, 0));
+        void swap();
+
+        void* buffer;
+
+    private:
+        void updateTexture();
+
+        std::mutex bufferMtx;
+        void* activeBuffer;
+
+        int _width;
+        int _height;
+        GLenum _format;
+
+        GLuint textureId;
+
+        bool newData = false;
+
+    };
+}