add CameraInfo class; load textures from Image rather than a pathname

Program.cs

@@ -15,6 +15,17 @@ using Image = SixLabors.ImageSharp.Image;
 
 namespace SemiColinGames;
 
+public class CameraInfo {
+  public readonly Vector2i Resolution;
+
+  private CameraInfo(Vector2i resolution) {
+    Resolution = resolution;
+  }
+
+  public static readonly CameraInfo NIKON_D7000 = new CameraInfo(new Vector2i(4928, 3264));
+  public static readonly CameraInfo IPHONE_12_MINI = new CameraInfo(new Vector2i(4032, 3024));
+}
+
 public class Shader : IDisposable {
   int Handle;
 
@@ -128,8 +139,7 @@ public class Texture : IDisposable {
   public int Width;
   public int Height;
 
-  public Texture(string path) {
-    Image<Rgba32> image = Image.Load<Rgba32>(path);
+  public Texture(Image<Rgba32> image) {
     Width = image.Width;
     Height = image.Height;
     Console.WriteLine($"image loaded: {Width}x{Height}");
@@ -178,6 +188,10 @@ public class Texture : IDisposable {
 public class Game : GameWindow {
   public Game(GameWindowSettings gwSettings, NativeWindowSettings nwSettings) : base(gwSettings, nwSettings) { }
 
+  static CameraInfo activeCamera = CameraInfo.NIKON_D7000;
+  static int thumbnailHeight = 100;
+  static int thumbnailWidth = (int) 1.0 * thumbnailHeight * activeCamera.Resolution.X / activeCamera.Resolution.Y;
+
   int frameCount;
   int windowWidth;
   int windowHeight;
@@ -226,6 +240,8 @@ public class Game : GameWindow {
   protected override void OnLoad() {
     base.OnLoad();
 
+    Console.WriteLine($"thumbnail size: {thumbnailWidth}x{thumbnailHeight}");
+
     GL.ClearColor(0.0f, 0.0f, 0.05f, 1.0f);
 
     VertexArrayObject = GL.GenVertexArray();
@@ -261,7 +277,8 @@ public class Game : GameWindow {
     textures = new List<Texture>();
     foreach (string file in files) {
       if (file.ToLower().EndsWith(".jpg")) {
-        textures.Add(new Texture(file));
+        Image<Rgba32> image = Image.Load<Rgba32>(file);
+        textures.Add(new Texture(image));
       }
     }
   }
@@ -275,8 +292,6 @@ public class Game : GameWindow {
     frameCount++;
     GL.Clear(ClearBufferMask.ColorBufferBit);
 
-    int thumbnailWidth = 150;
-    int thumbnailHeight = 100;
     int borderWidth = 2;
     int maxPhotoWidth = windowWidth - thumbnailWidth - borderWidth;