totte/Program.cs

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using OpenTK.Graphics.OpenGL4;
using OpenTK.Mathematics;
using OpenTK.Windowing.Common;
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using OpenTK.Windowing.Common.Input;
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using OpenTK.Windowing.Desktop;
using OpenTK.Windowing.GraphicsLibraryFramework;
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// https://docs.sixlabors.com/api/ImageSharp/SixLabors.ImageSharp.Image.html
using SixLabors.Fonts;
using SixLabors.ImageSharp.Drawing.Processing;
using SixLabors.ImageSharp.Drawing;
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using SixLabors.ImageSharp.Formats.Jpeg;
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using System;
using System.Diagnostics;
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namespace SemiColinGames;
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public class FpsCounter {
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private readonly int[] frameTimes = new int[30];
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private double fps = 0;
private int idx = 0;
public int Fps {
get => (int) Math.Ceiling(fps);
}
public void Update() {
var now = Environment.TickCount; // ms
if (frameTimes[idx] != 0) {
var timeElapsed = now - frameTimes[idx];
fps = 1000.0 * frameTimes.Length / timeElapsed;
}
frameTimes[idx] = now;
idx = (idx + 1) % frameTimes.Length;
}
}
public class CameraInfo {
public static float AspectRatio = 6000f / 4000f;
}
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public enum ToolStatus {
Active,
Done,
Canceled
}
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public class Transform {
float activeScale;
Vector2i activeOffset;
Vector2i photoSize;
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public Transform(float scale, Vector2i offset, Vector2i photoSize) {
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activeScale = scale;
activeOffset = offset;
this.photoSize = photoSize;
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}
public Vector2i ScreenToImageDelta(int x, int y) {
return new((int) (x / activeScale), (int) (y / activeScale));
}
public Vector2i ScreenToImage(int x, int y) {
int rx = (int) ((x - activeOffset.X) / activeScale);
int ry = (int) ((y - activeOffset.Y) / activeScale);
rx = Math.Clamp(rx, 0, photoSize.X);
ry = Math.Clamp(ry, 0, photoSize.Y);
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return new(rx, ry);
}
public Vector2i ScreenToImage(Vector2i position) {
return ScreenToImage(position.X, position.Y);
}
public Vector2i ImageToScreen(int x, int y) {
int rx = (int) ((x * activeScale) + activeOffset.X);
int ry = (int) ((y * activeScale) + activeOffset.Y);
return new(rx, ry);
}
public Vector2i ImageToScreen(Vector2i position) {
return ImageToScreen(position.X, position.Y);
}
}
public interface ITool {
ToolStatus HandleInput(KeyboardState input, MouseState mouse, Transform transform, Game game, Photo photo, UiGeometry geometry);
string Status();
}
public class ViewTool : ITool {
private bool dragging = false;
public ToolStatus HandleInput(KeyboardState input, MouseState mouse, Transform transform, Game game, Photo photo, UiGeometry geometry) {
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Vector2i mousePosition = (Vector2i) mouse.Position;
if (mouse.IsButtonPressed(MouseButton.Button1) && geometry.PhotoBox.ContainsInclusive(mousePosition)) {
dragging = true;
}
if (!mouse.IsButtonDown(MouseButton.Button1)) {
dragging = false;
}
if (dragging) {
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Vector2 delta = mouse.Delta;
Vector2i imageDelta = transform.ScreenToImageDelta((int) delta.X, (int) delta.Y);
photo.ViewOffset = Vector2i.Add(photo.ViewOffset, imageDelta);
}
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return ToolStatus.Active;
}
public string Status() {
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return "";
}
}
public class CropTool : ITool {
enum Mode { Sizing, Translating };
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Photo photo;
Vector2i mouseDragStart;
Vector2i mouseDragEnd;
Mode mode;
string status = "";
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public CropTool(Photo photo) {
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this.photo = photo;
mouseDragStart = new(photo.CropRectangle.Left, photo.CropRectangle.Top);
mouseDragEnd = new(photo.CropRectangle.Right, photo.CropRectangle.Bottom);
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}
public ToolStatus HandleInput(KeyboardState input, MouseState mouse, Transform transform, Game game, Photo photo, UiGeometry geometry) {
Vector2i mousePosition = (Vector2i) mouse.Position;
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Vector2i imagePosition = transform.ScreenToImage(mousePosition);
List<Vector2i> corners = Util.RectangleCorners(photo.CropRectangle);
Vector2i? oppositeCorner = null;
bool mouseNearHandle = false;
for (int i = 0; i < 4; i++) {
Vector2i corner = corners[i];
Vector2i handlePosition = transform.ImageToScreen(corner.X, corner.Y);
if (Vector2i.Subtract(mousePosition, handlePosition).ManhattanLength < 10) {
mouseNearHandle = true;
oppositeCorner = corners[(i + 2) % 4];
break;
}
}
bool mouseInRectangle = photo.CropRectangle.Contains(imagePosition.X, imagePosition.Y);
if (mouse.IsButtonPressed(MouseButton.Button1)) {
if (mouseNearHandle || !mouseInRectangle) {
mode = Mode.Sizing;
} else {
mode = Mode.Translating;
}
}
if (mouseNearHandle) {
game.Cursor = MouseCursor.Hand;
} else if (mouseInRectangle) {
game.Cursor = MouseCursor.Default;
} else {
game.Cursor = MouseCursor.Crosshair;
}
if (mode == Mode.Sizing) {
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if (mouse.IsButtonPressed(MouseButton.Button1)) {
mouseDragStart = oppositeCorner ?? imagePosition;
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}
if (mouse.IsButtonDown(MouseButton.Button1)) {
mouseDragEnd = imagePosition;
}
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var (left, right, top, bottom) = GetCrop();
if (left != right && top != bottom) {
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photo.CropRectangle = Rectangle.FromLTRB(left, top, right, bottom);
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} else {
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photo.CropRectangle = Rectangle.Empty;
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}
} else {
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if (mouse.IsButtonDown(MouseButton.Button1)) {
Vector2 delta = mouse.Delta;
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Vector2i imageDelta = transform.ScreenToImageDelta((int) delta.X, (int) delta.Y);
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photo.CropRectangle.Offset(imageDelta.X, imageDelta.Y);
if (photo.CropRectangle.Left < 0) {
photo.CropRectangle.Offset(-photo.CropRectangle.Left, 0);
}
if (photo.CropRectangle.Right > photo.Size.X) {
int overshoot = photo.CropRectangle.Right - photo.Size.X;
photo.CropRectangle.Offset(-overshoot, 0);
}
if (photo.CropRectangle.Top < 0) {
photo.CropRectangle.Offset(0, -photo.CropRectangle.Top);
}
if (photo.CropRectangle.Bottom > photo.Size.Y) {
int overshoot = photo.CropRectangle.Bottom - photo.Size.Y;
photo.CropRectangle.Offset(0, -overshoot);
}
}
}
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Rectangle r = photo.CropRectangle;
status = $"({r.Left}, {r.Top}, {r.Right}, {r.Bottom}) {r.Width}x{r.Height}";
if (input.IsKeyPressed(Keys.Enter)) {
game.Cursor = MouseCursor.Default;
if (photo.Rating < 1) {
photo.Rating = 1;
}
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photo.ViewOffset = new(photo.Size.X / 2 - Rectangle.Center(r).X,
photo.Size.Y / 2 - Rectangle.Center(r).Y);
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return ToolStatus.Done;
}
if (input.IsKeyPressed(Keys.Escape)) {
game.Cursor = MouseCursor.Default;
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photo.CropRectangle = Rectangle.Empty;
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return ToolStatus.Canceled;
}
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return ToolStatus.Active;
}
// left, right, top, bottom
(int, int, int, int) GetCrop() {
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// FIXME: allow for unconstrained crop, 1:1, etc.
float aspectRatio = 1f * photo.Size.X / photo.Size.Y;
Vector2i start = mouseDragStart;
Vector2i end = mouseDragEnd;
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int width = Math.Abs(end.X - start.X);
int height = Math.Abs(end.Y - start.Y);
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int heightChange = Math.Min(height, (int) (width / aspectRatio));
int widthChange = (int) (heightChange * aspectRatio);
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if (end.X < start.X) {
widthChange *= -1;
}
if (end.Y < start.Y) {
heightChange *= -1;
}
end.Y = start.Y + heightChange;
end.X = start.X + widthChange;
int left = Math.Min(start.X, end.X);
int right = Math.Max(start.X, end.X);
int top = Math.Min(start.Y, end.Y);
int bottom = Math.Max(start.Y, end.Y);
return (left, right, top, bottom);
}
public string Status() {
return "[crop] " + status;
}
}
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public class StraightenTool : ITool {
Photo photo;
int initialRotation;
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public StraightenTool(Photo photo) {
this.photo = photo;
initialRotation = photo.RotationDegreeHundredths;
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}
public ToolStatus HandleInput(KeyboardState input, MouseState mouse, Transform transform, Game game, Photo photo, UiGeometry geometry) {
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if (input.IsKeyPressed(Keys.D0)) {
photo.RotationDegreeHundredths = 0;
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}
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if (input.IsKeyPressed(Keys.Left)) {
if (input.IsKeyDown(Keys.LeftControl)) {
photo.RotationDegreeHundredths += 100;
} else if (input.IsKeyDown(Keys.LeftShift)) {
photo.RotationDegreeHundredths += 1;
} else {
photo.RotationDegreeHundredths += 10;
}
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}
if (input.IsKeyPressed(Keys.Right)) {
if (input.IsKeyDown(Keys.LeftControl)) {
photo.RotationDegreeHundredths -= 100;
} else if (input.IsKeyDown(Keys.LeftShift)) {
photo.RotationDegreeHundredths -= 1;
} else {
photo.RotationDegreeHundredths -= 10;
}
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}
if (input.IsKeyPressed(Keys.Enter)) {
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Matrix2 rotation = Matrix2.CreateRotation(MathHelper.DegreesToRadians(photo.RotationDegreeHundredths / 100f));
Vector2 center = new(photo.Size.X / 2f, photo.Size.Y / 2f);
float[] xCoords = new float[4];
float[] yCoords = new float[4];
List<Vector2i> corners = Util.RectangleCorners(new Rectangle(0, 0, photo.Size.X, photo.Size.Y));
for (int i = 0; i < 4; i++) {
Vector2i corner = corners[i];
Vector2 rotated = Util.RotateAboutCenter(corner, center, rotation);
xCoords[i] = rotated.X;
yCoords[i] = rotated.Y;
}
Array.Sort(xCoords);
Array.Sort(yCoords);
for (int i = 3; i >= 0; i--) {
xCoords[i] -= xCoords[0];
yCoords[i] -= yCoords[0];
}
// FIXME: we can get a bigger crop using a better algorithm -- this is
// too conservative. Also, preserve aspect ratio? Maybe we need to
// commit this as a separate crop immediately so that further crops are
// working on an image that isn't weirdly rotated. Or keep the
// straighten-crop as a separate operation from an ordinary crop.
int left = (int) Math.Ceiling(xCoords[1]);
int right = (int) Math.Floor(xCoords[2]);
int top = (int) Math.Ceiling(yCoords[1]);
int bottom = (int) Math.Floor(yCoords[2]);
photo.CropRectangle = Rectangle.FromLTRB(left, top, right, bottom);
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return ToolStatus.Done;
}
if (input.IsKeyPressed(Keys.Escape)) {
photo.RotationDegreeHundredths = initialRotation;
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return ToolStatus.Canceled;
}
return ToolStatus.Active;
}
public string Status() {
return String.Format("[straighten] {0:F2}", photo.RotationDegreeHundredths / 100f);
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}
}
public class UiGeometry {
public static Vector2i MIN_WINDOW_SIZE = new(1024, 768);
public readonly Vector2i WindowSize;
public readonly Vector2i ThumbnailSize;
public readonly Box2i ThumbnailBox;
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public readonly List<Box2i> ThumbnailBoxes = new();
public readonly List<Box2i> StarBoxes = new();
public readonly Box2i PhotoBox;
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public readonly Box2i StatusBox;
public UiGeometry() : this(MIN_WINDOW_SIZE, 0) {}
public UiGeometry(Vector2i windowSize, int starSize) {
WindowSize = windowSize;
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int numThumbnailsPerColumn = Math.Max(WindowSize.Y / 120, 1);
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int thumbnailHeight = WindowSize.Y / numThumbnailsPerColumn;
int thumbnailWidth = (int) (1.0 * thumbnailHeight * CameraInfo.AspectRatio);
ThumbnailSize = new(thumbnailWidth, thumbnailHeight);
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int thumbnailColumns = 3;
for (int j = thumbnailColumns; j > 0; j--) {
for (int i = 0; i < numThumbnailsPerColumn; i++) {
Box2i box = Util.MakeBox(WindowSize.X - thumbnailWidth * j, i * thumbnailHeight,
thumbnailWidth, thumbnailHeight);
ThumbnailBoxes.Add(box);
}
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}
int statusBoxHeight = 40;
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PhotoBox = new Box2i(
0, 0, WindowSize.X - thumbnailWidth * thumbnailColumns, WindowSize.Y - statusBoxHeight);
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StatusBox = new Box2i(
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0, WindowSize.Y - statusBoxHeight, WindowSize.X - thumbnailWidth * thumbnailColumns, WindowSize.Y);
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ThumbnailBox = new Box2i(
ThumbnailBoxes[0].Min.X, ThumbnailBoxes[0].Min.Y, WindowSize.X, WindowSize.Y);
int starSpacing = 10;
int starBoxLeft = (int) (PhotoBox.Center.X - 2.5 * starSize - starSpacing * 2);
for (int i = 0; i < 5; i++) {
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Box2i box = Util.MakeBox(
starBoxLeft + i * (starSize + starSpacing), PhotoBox.Max.Y - starSize - 10,
starSize, starSize);
StarBoxes.Add(box);
}
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}
}
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public static class Util {
public const float PI = (float) Math.PI;
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public static int Lerp(int start, int end, double fraction) {
return start + (int) ((end - start) * fraction);
}
public static Box2i MakeBox(int left, int top, int width, int height) {
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return new Box2i(left, top, left + width, top + height);
}
// resulting items are ordered such that a corner's opposite is 2 indexes away.
public static List<Vector2i> RectangleCorners(Rectangle r) {
List<Vector2i> result = new(4);
result.Add(new(r.Left, r.Top));
result.Add(new(r.Right, r.Top));
result.Add(new(r.Right, r.Bottom));
result.Add(new(r.Left, r.Bottom));
return result;
}
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public static Vector2 RotateAboutCenter(Vector2 vec, Vector2 center, Matrix2 transform) {
Vector2 centerRelative = vec - center;
centerRelative *= transform;
return centerRelative + center;
}
public static Image<Rgba32> MakeImage(float width, float height) {
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return new((int) Math.Ceiling(width), (int) Math.Ceiling(height));
}
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// https://sirv.com/help/articles/rotate-photos-to-be-upright/
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// FIXME: could use AutoOrientProcessor instead?
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public static void RotateImageFromExif(Image<Rgba32> image, ushort orientation) {
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if (orientation <= 1) {
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return;
}
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var operations = new Dictionary<ushort, (RotateMode, FlipMode)> {
{ 2, (RotateMode.None, FlipMode.Horizontal) },
{ 3, (RotateMode.Rotate180, FlipMode.None) },
{ 4, (RotateMode.None, FlipMode.Vertical) },
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{ 5, (RotateMode.Rotate90, FlipMode.Vertical) },
{ 6, (RotateMode.Rotate90, FlipMode.None) },
{ 7, (RotateMode.Rotate270, FlipMode.Vertical) },
{ 8, (RotateMode.Rotate270, FlipMode.None) },
};
var (rotate, flip) = operations[orientation];
image.Mutate(x => x.RotateFlip(rotate, flip));
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}
public static Texture RenderText(string text) {
return RenderText(text, 16);
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}
public static Texture RenderText(string text, int size) {
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// Make sure that 0-length text doesn't end up as a 0-size texture, which
// might cause problems.
if (text.Length == 0) {
text = " ";
}
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Font font = SystemFonts.CreateFont("Consolas", size, FontStyle.Bold);
TextOptions options = new(font);
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FontRectangle rect = TextMeasurer.Measure(text, new TextOptions(font));
Image<Rgba32> image = MakeImage(rect.Width, rect.Height);
IBrush brush = Brushes.Solid(Color.White);
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image.Mutate(x => x.DrawText(options, text, brush));
Texture texture = new Texture(image);
image.Dispose();
return texture;
}
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// FIXME: make a real icon stored as a PNG...
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public static OpenTK.Windowing.Common.Input.Image[] RenderAppIcon() {
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int size = 64;
Font font = SystemFonts.CreateFont("MS Mincho", size, FontStyle.Bold);
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TextOptions options = new(font);
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Image<Rgba32> image = MakeImage(size, size);
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IBrush brush = Brushes.Solid(Color.Black);
image.Mutate(x => x.DrawText(options, "æ’®", brush));
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byte[] pixelBytes = new byte[size * size * 4];
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image.CopyPixelDataTo(pixelBytes);
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image.Dispose();
OpenTK.Windowing.Common.Input.Image opentkImage = new(size, size, pixelBytes);
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return new OpenTK.Windowing.Common.Input.Image[]{ opentkImage };
}
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public static Texture RenderStar(float radius, bool filled) {
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IPath path = new Star(x: radius, y: radius + 1, prongs: 5,
innerRadii: radius * 0.4f, outerRadii: radius, angle: Util.PI);
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// We add a little bit to the width & height because the reported
// path.Bounds are often a little tighter than they should be & a couple
// pixels end up obviously missing...
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Image<Rgba32> image = MakeImage(path.Bounds.Width + 2, path.Bounds.Height + 2);
IBrush brush = Brushes.Solid(Color.White);
IPen white = Pens.Solid(Color.White, 1.5f);
IPen black = Pens.Solid(Color.Black, 3f);
image.Mutate(x => x.Draw(black, path));
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if (filled) {
image.Mutate(x => x.Fill(brush, path));
}
image.Mutate(x => x.Draw(white, path));
Texture texture = new Texture(image);
image.Dispose();
return texture;
}
}
public class Toast {
private string message = "";
private double time;
private double expiryTime;
public void Set(string message) {
this.message = message;
this.expiryTime = time + 5.0;
}
public string Get() {
return message;
}
public void Update(double elapsed) {
time += elapsed;
if (time > expiryTime) {
message = "";
}
}
}
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public class Game : GameWindow {
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public Game(GameWindowSettings gwSettings, NativeWindowSettings nwSettings) :
base(gwSettings, nwSettings) {
activeTool = viewTool;
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geometry = new UiGeometry(nwSettings.Size, STAR_FILLED.Size.X);
}
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// private static string outputRoot = @"c:\users\colin\desktop\totte-output";
private static string outputRoot = @"d:\photos";
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private static Texture TEXTURE_WHITE = new(new Image<Rgba32>(1, 1, new Rgba32(255, 255, 255)));
private static Texture TEXTURE_BLACK = new(new Image<Rgba32>(1, 1, new Rgba32(0, 0, 0)));
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private static Texture STAR_FILLED = Util.RenderStar(20, true);
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private static Texture STAR_EMPTY = Util.RenderStar(20, false);
private static Texture STAR_SMALL = Util.RenderStar(6, true);
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UiGeometry geometry;
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FpsCounter fpsCounter = new();
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// Four points, each consisting of (x, y, z, tex_x, tex_y).
float[] vertices = new float[20];
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// Indices to draw a rectangle from two triangles.
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uint[] indices = {
0, 1, 3, // first triangle
1, 2, 3 // second triangle
};
int VertexBufferObject;
int ElementBufferObject;
int VertexArrayObject;
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List<Photo> allPhotos = new();
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List<Photo> photos = new();
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HashSet<Photo> loadedImages = new();
HashSet<Photo> loadingImages = new();
readonly object loadedImagesLock = new();
readonly ViewTool viewTool = new ViewTool();
Toast toast = new();
ITool activeTool;
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int photoIndex = 0;
int ribbonIndex = 0;
Vector2i mousePosition;
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float activeScale = 1f;
Vector2i activeOffset;
Transform transform = new(1f, Vector2i.Zero, Vector2i.Zero);
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Shader shader = new();
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Matrix4 projection;
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float zoomLevel = 0f;
double timeSinceEvent = 0;
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// Variables that are protected by locks:
readonly object numThumbnailsLoadedLock = new();
int numThumbnailsLoaded = 0;
readonly object exportPhotosLock = new(); // locks the entire ExportPhotos() function.
int numPhotosToExport = 0;
readonly object numPhotosExportedLock = new();
int numPhotosExported = 0;
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protected override void OnUpdateFrame(FrameEventArgs e) {
base.OnUpdateFrame(e);
toast.Update(e.Time);
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KeyboardState input = KeyboardState;
bool mouseInWindow = ClientRectangle.ContainsInclusive((Vector2i) MouseState.Position);
if (input.IsAnyKeyDown ||
MouseState.IsAnyButtonDown ||
(mouseInWindow && MouseState.Delta != Vector2i.Zero)) {
timeSinceEvent = 0;
} else {
timeSinceEvent += e.Time;
}
if (IsFocused) { // && timeSinceEvent < 1
RenderFrequency = 60;
UpdateFrequency = 60;
} else {
RenderFrequency = 5;
UpdateFrequency = 5;
}
Photo previousPhoto = photos[photoIndex];
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bool shiftIsDown = input.IsKeyDown(Keys.LeftShift) || input.IsKeyDown(Keys.RightShift);
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bool altIsDown = input.IsKeyDown(Keys.LeftAlt) || input.IsKeyDown(Keys.RightAlt);
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bool ctrlIsDown = input.IsKeyDown(Keys.LeftControl) || input.IsKeyDown(Keys.RightControl);
// FIXME: add a confirm dialog before closing. (Also for the window-close button.)
// FIXME: don't quit if there's pending file-write operations.
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// Close when Ctrl-Q is pressed.
if (input.IsKeyPressed(Keys.Q) && ctrlIsDown) {
Close();
}
mousePosition = (Vector2i) MouseState.Position;
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// Look for mouse clicks on thumbnails or stars.
//
// Note that we don't bounds-check photoIndex until after all the possible
// inputs that might affect it. That simplifies this logic significantly.
if (MouseState.IsButtonPressed(MouseButton.Button1)) {
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for (int i = 0; i < geometry.StarBoxes.Count; i++) {
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if (geometry.StarBoxes[i].ContainsInclusive(mousePosition)) {
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photos[photoIndex].Rating = i + 1;
}
}
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for (int i = 0; i < geometry.ThumbnailBoxes.Count; i++) {
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if (geometry.ThumbnailBoxes[i].ContainsInclusive(mousePosition)) {
photoIndex = ribbonIndex + i;
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}
}
}
if (MouseState.IsButtonPressed(MouseButton.Button4)) {
photoIndex--;
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}
if (MouseState.IsButtonPressed(MouseButton.Button5)) {
photoIndex++;
}
if (MouseState.ScrollDelta.Y < 0) {
photoIndex++;
}
if (MouseState.ScrollDelta.Y > 0) {
photoIndex--;
}
if (input.IsKeyPressed(Keys.Down)) {
photoIndex++;
}
if (input.IsKeyPressed(Keys.Up)) {
photoIndex--;
}
if (input.IsKeyPressed(Keys.Home)) {
photoIndex = 0;
}
if (input.IsKeyPressed(Keys.End)) {
photoIndex = photos.Count - 1;
}
if (input.IsKeyPressed(Keys.PageDown)) {
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photoIndex += 10;
}
if (input.IsKeyPressed(Keys.PageUp)) {