totte/Program.cs

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C#
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using OpenTK.Graphics.OpenGL4;
using OpenTK.Mathematics;
using OpenTK.Windowing.Common;
using OpenTK.Windowing.Desktop;
using OpenTK.Windowing.GraphicsLibraryFramework;
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// https://docs.sixlabors.com/api/ImageSharp/SixLabors.ImageSharp.Image.html
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using Image = SixLabors.ImageSharp.Image;
using SixLabors.Fonts;
using SixLabors.ImageSharp.Metadata.Profiles.Exif;
using SixLabors.ImageSharp.Metadata.Profiles.Xmp;
using SixLabors.ImageSharp.Drawing.Processing;
using SixLabors.ImageSharp.Drawing;
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using System;
using System.Diagnostics;
using System.Runtime.CompilerServices;
using System.Xml.Linq;
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namespace SemiColinGames;
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public class FpsCounter {
private readonly int[] frameTimes = new int[60];
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 readonly Vector2i Resolution;
private CameraInfo(Vector2i resolution) {
Resolution = resolution;
}
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public static readonly CameraInfo NIKON_D7000 = new(new Vector2i(4928, 3264));
public static readonly CameraInfo CANON_EOS_R6M2 = new(new Vector2i(6000, 4000));
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public static readonly CameraInfo IPHONE_12_MINI = new(new Vector2i(4032, 3024));
}
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// FIXME: switch to immediate mode??
// https://gamedev.stackexchange.com/questions/198805/opentk-immediate-mode-on-net-core-doesnt-work
// https://www.youtube.com/watch?v=Q23Kf9QEaO4
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public class Shader : IDisposable {
public int Handle;
private bool init = false;
public Shader() {}
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public void Init() {
init = true;
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int VertexShader;
int FragmentShader;
string VertexShaderSource = @"
#version 330
layout(location = 0) in vec3 aPosition;
layout(location = 1) in vec2 aTexCoord;
out vec2 texCoord;
uniform mat4 projection;
void main(void) {
texCoord = aTexCoord;
gl_Position = vec4(aPosition, 1.0) * projection;
}";
string FragmentShaderSource = @"
#version 330
out vec4 outputColor;
in vec2 texCoord;
uniform sampler2D texture0;
uniform vec4 color;
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void main() {
outputColor = texture(texture0, texCoord) * color;
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}";
VertexShader = GL.CreateShader(ShaderType.VertexShader);
GL.ShaderSource(VertexShader, VertexShaderSource);
FragmentShader = GL.CreateShader(ShaderType.FragmentShader);
GL.ShaderSource(FragmentShader, FragmentShaderSource);
GL.CompileShader(VertexShader);
int success;
GL.GetShader(VertexShader, ShaderParameter.CompileStatus, out success);
if (success == 0) {
string infoLog = GL.GetShaderInfoLog(VertexShader);
Console.WriteLine(infoLog);
}
GL.CompileShader(FragmentShader);
GL.GetShader(FragmentShader, ShaderParameter.CompileStatus, out success);
if (success == 0) {
string infoLog = GL.GetShaderInfoLog(FragmentShader);
Console.WriteLine(infoLog);
}
Handle = GL.CreateProgram();
GL.AttachShader(Handle, VertexShader);
GL.AttachShader(Handle, FragmentShader);
GL.LinkProgram(Handle);
GL.GetProgram(Handle, GetProgramParameterName.LinkStatus, out success);
if (success == 0) {
string infoLog = GL.GetProgramInfoLog(Handle);
Console.WriteLine(infoLog);
}
GL.DetachShader(Handle, VertexShader);
GL.DetachShader(Handle, FragmentShader);
GL.DeleteShader(FragmentShader);
GL.DeleteShader(VertexShader);
}
public void Use() {
if (!init) {
Console.WriteLine("Shader.Use(): must call Init() first");
}
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GL.UseProgram(Handle);
}
private bool disposedValue = false;
protected virtual void Dispose(bool disposing) {
if (!disposedValue) {
GL.DeleteProgram(Handle);
disposedValue = true;
}
}
~Shader() {
if (disposedValue == false) {
Console.WriteLine("~Shader(): resource leak? Dispose() should be called manually.");
}
}
public void Dispose() {
Dispose(true);
GC.SuppressFinalize(this);
}
public int GetAttribLocation(string name) {
return GL.GetAttribLocation(Handle, name);
}
public int GetUniformLocation(string name) {
return GL.GetUniformLocation(Handle, name);
}
}
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// FIXME: this should probably be IDisposable?
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public class Photo {
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public string Filename;
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public bool Loaded = false;
public Vector2i Size;
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public DateTime DateTimeOriginal;
public string CameraModel = "";
public string LensModel = "";
public string FocalLength = "<unk>";
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public string FNumber = "<unk>";
public string ExposureTime = "<unk>";
public string IsoSpeed = "<unk>";
public int Rating = 0;
public ushort Orientation = 1;
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private Texture texture;
private Texture placeholder;
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private Image<Rgba32>? image = null;
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public Photo(string filename, Texture placeholder) {
Filename = filename;
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this.placeholder = placeholder;
texture = placeholder;
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DateTime creationTime = File.GetCreationTime(filename); // Local time.
DateTimeOriginal = creationTime;
ImageInfo info = Image.Identify(filename);
Size = new(info.Size.Width, info.Size.Height);
ParseExif(info.Metadata.ExifProfile);
TryParseRating(info.Metadata.XmpProfile, out Rating);
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}
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public async void LoadAsync() {
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// We don't assign to this.image until Load() is done, because we might
// edit the image due to rotation (etc) and don't want to try generating
// a texture for it until that's already happened.
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Image<Rgba32> tmp = await Image.LoadAsync<Rgba32>(Filename);
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Util.RotateImageFromExif(tmp, Orientation);
image = tmp;
}
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public async void UnloadAsync() {
Loaded = false;
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if (texture != placeholder) {
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await Task.Run( () => { texture.Dispose(); });
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texture = placeholder;
}
}
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private bool TryParseRating(XmpProfile? xmp, out int rating) {
rating = 0;
if (xmp == null) {
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return false;
}
XDocument? doc = xmp.GetDocument();
if (doc == null) {
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return false;
}
XElement? root = doc.Root;
if (root == null) {
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return false;
}
foreach (XElement elt in root.Descendants()) {
if (elt.Name == "{http://ns.adobe.com/xap/1.0/}Rating") {
if (int.TryParse(elt.Value, out rating)) {
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return true;
}
}
}
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return false;
}
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// Exif (and other image metadata) reference, from the now-defunct Metadata Working Group:
// https://web.archive.org/web/20180919181934/http://www.metadataworkinggroup.org/pdf/mwg_guidance.pdf
//
// Specifically:
//
// In general, date/time metadata is being used to describe the following scenarios:
// * Date/time original specifies when a photo was taken
// * Date/time digitized specifies when an image was digitized
// * Date/time modified specifies when a file was modified by the user
//
// Original Date/Time Creation date of the intellectual content (e.g. the photograph), rather than the creation date of the content being shown
// Exif DateTimeOriginal (36867, 0x9003) and SubSecTimeOriginal (37521, 0x9291)
// IPTC DateCreated (IIM 2:55, 0x0237) and TimeCreated (IIM 2:60, 0x023C)
// XMP (photoshop:DateCreated)
//
// Digitized Date/Time Creation date of the digital representation
// Exif DateTimeDigitized (36868, 0x9004) and SubSecTimeDigitized (37522, 0x9292)
// IPTC DigitalCreationDate (IIM 2:62, 0x023E) and DigitalCreationTime (IIM 2:63, 0x023F)
// XMP (xmp:CreateDate)
//
// Modification Date/Time Modification date of the digital image file
// Exif DateTime (306, 0x132) and SubSecTime (37520, 0x9290)
// XMP (xmp:ModifyDate)
private void ParseExif(ExifProfile? exifs) {
if (exifs == null) {
return;
}
IExifValue<ushort>? orientation;
if (exifs.TryGetValue(ExifTag.Orientation, out orientation)) {
Orientation = orientation.Value;
}
IExifValue<string>? model;
if (exifs.TryGetValue(ExifTag.Model, out model)) {
CameraModel = model.Value ?? "";
}
IExifValue<string>? lensModel;
if (exifs.TryGetValue(ExifTag.LensModel, out lensModel)) {
LensModel = lensModel.Value ?? "";
}
IExifValue<Rational>? focalLength;
if (exifs.TryGetValue(ExifTag.FocalLength, out focalLength)) {
Rational r = focalLength.Value;
FocalLength = $"{r.Numerator / r.Denominator}mm";
}
IExifValue<Rational>? fNumber;
if (exifs.TryGetValue(ExifTag.FNumber, out fNumber)) {
Rational r = fNumber.Value;
if (r.Denominator == 1) {
FNumber = $"f/{r.Numerator}";
} else {
if (r.Denominator != 10) {
Console.WriteLine($"*** WARNING: unexpected FNumber denominator: {r.Denominator}");
}
if (r.Numerator % 10 == 0) {
FNumber = $"f/{r.Numerator / 10}";
} else {
FNumber= $"f/{r.Numerator / 10}.{r.Numerator % 10}";
}
}
}
IExifValue<Rational>? exposureTime;
if (exifs.TryGetValue(ExifTag.ExposureTime, out exposureTime)) {
Rational r = exposureTime.Value;
if (r.Numerator == 1) {
ExposureTime = $"1/{r.Denominator}";
} else if (r.Numerator == 10) {
ExposureTime = $"1/{r.Denominator / 10}";
} else if (r.Denominator == 1) {
ExposureTime = $"{r.Numerator }\"";
} else if (r.Denominator == 10) {
ExposureTime = $"{r.Numerator / 10}.{r.Numerator % 10}\"";
} else {
Console.WriteLine($"*** WARNING: unexpected ExposureTime: {r.Numerator}/{r.Denominator}");
ExposureTime = r.ToString();
}
}
IExifValue<ushort[]>? isoSpeed;
if (exifs.TryGetValue(ExifTag.ISOSpeedRatings, out isoSpeed)) {
ushort[]? iso = isoSpeed.Value;
if (iso != null) {
if (iso.Length != 1) {
Console.WriteLine($"*** WARNING: unexpected ISOSpeedRatings array length: {iso.Length}");
}
if (iso.Length >= 1) {
IsoSpeed = $"ISO {iso[0]}";
}
}
}
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// FIXME: I think the iPhone stores time in UTC but other cameras report it in local time.
IExifValue<string>? dateTimeOriginal;
if (exifs.TryGetValue(ExifTag.DateTimeOriginal, out dateTimeOriginal)) {
DateTime date;
if (DateTime.TryParseExact(
dateTimeOriginal.Value ?? "",
"yyyy:MM:dd HH:mm:ss",
System.Globalization.CultureInfo.InvariantCulture,
System.Globalization.DateTimeStyles.AssumeLocal,
out date)) {
DateTimeOriginal = date;
} else {
Console.WriteLine($"*** WARNING: unexpected DateTimeOriginal value: {dateTimeOriginal.Value}");
}
}
}
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public Texture Texture() {
if (texture == placeholder && image != null) {
// The texture needs to be created on the GL thread, so we instantiate
// it here (since this is called from OnRenderFrame), as long as the
// image is ready to go.
texture = new Texture(image);
image.Dispose();
image = null;
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Loaded = true;
}
return texture;
}
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public string Description() {
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string date = DateTimeOriginal.ToString("yyyy-MM-dd HH:mm:ss");
string shootingInfo = $"{date} {FocalLength}, {FNumber} at {ExposureTime}, {IsoSpeed}";
return String.Format("{0,-60} {1,-50} {2}", shootingInfo, $"{CameraModel} {LensModel}", Filename);
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}
}
public class Texture : IDisposable {
public int Handle;
public Vector2i Size;
public Texture(Image<Rgba32> image) {
Size = new Vector2i(image.Width, image.Height);
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byte[] pixelBytes = new byte[Size.X * Size.Y * Unsafe.SizeOf<Rgba32>()];
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image.CopyPixelDataTo(pixelBytes);
Handle = GL.GenTexture();
if (Handle > maxHandle) {
// Console.WriteLine("GL.GenTexture #" + Handle);
maxHandle = Handle;
}
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GL.ActiveTexture(TextureUnit.Texture0);
GL.BindTexture(TextureTarget.Texture2D, Handle);
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GL.TexImage2D(TextureTarget.Texture2D, 0, PixelInternalFormat.Rgba, Size.X, Size.Y, 0, PixelFormat.Rgba, PixelType.UnsignedByte, pixelBytes);
//GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int) TextureMinFilter.LinearMipmapLinear);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMinFilter, (int) TextureMinFilter.Linear);
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GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureMagFilter, (int) TextureMagFilter.Nearest);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int) TextureWrapMode.ClampToBorder);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int) TextureWrapMode.ClampToBorder);
float[] borderColor = { 0.0f, 0.0f, 0.0f, 1.0f };
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureBorderColor, borderColor);
// FIXME: should we use mipmaps?
//GL.GenerateMipmap(GenerateMipmapTarget.Texture2D);
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}
private static int maxHandle = -1;
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private bool disposedValue = false;
protected virtual void Dispose(bool disposing) {
if (!disposedValue) {
GL.DeleteTexture(Handle);
disposedValue = true;
}
}
~Texture() {
if (!disposedValue) {
Console.WriteLine("~Texture(): resource leak? Dispose() should be called manually.");
}
}
public void Dispose() {
Dispose(true);
GC.SuppressFinalize(this);
}
}
public class UiGeometry {
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public static Vector2i MIN_WINDOW_SIZE = new(640, 480);
private static CameraInfo activeCamera = CameraInfo.CANON_EOS_R6M2;
public readonly Vector2i WindowSize;
public readonly Box2i ThumbnailBox;
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public readonly List<Box2i> ThumbnailBoxes = new();
public readonly Box2i PhotoBox;
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public readonly Box2i StatusBox;
public UiGeometry() : this(MIN_WINDOW_SIZE) {}
public UiGeometry(Vector2i windowSize) {
WindowSize = windowSize;
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int numThumbnails = 20;
int thumbnailHeight = WindowSize.Y / numThumbnails;
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int thumbnailWidth = (int) 1.0 * thumbnailHeight * activeCamera.Resolution.X / activeCamera.Resolution.Y;
for (int i = 0; i < numThumbnails; i++) {
Box2i box = Util.MakeBox(WindowSize.X - thumbnailWidth, i * thumbnailHeight, thumbnailWidth, thumbnailHeight);
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ThumbnailBoxes.Add(box);
}
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int statusBoxHeight = 20;
int statusBoxPadding = 4;
PhotoBox = new Box2i(0, 0, WindowSize.X - thumbnailWidth, WindowSize.Y - statusBoxHeight - statusBoxPadding);
StatusBox = new Box2i(0, WindowSize.Y - statusBoxHeight, WindowSize.X - thumbnailWidth, WindowSize.Y);
ThumbnailBox = new Box2i(ThumbnailBoxes[0].Min.X, ThumbnailBoxes[0].Min.Y, WindowSize.X, WindowSize.Y);
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}
}
public static class Util {
public const float PI = (float) Math.PI;
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);
}
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/
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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// FIXME: I'm not convinced that all of these are correct, especially the
// cases that involve flipping (because whether you're flipping before or
// after rotation matters.).
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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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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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// IPen pen = Pens.Solid(Color.Black, 1f);
// image.Mutate(x => x.DrawText(options, text, brush, pen));
image.Mutate(x => x.DrawText(options, text, brush));
Texture texture = new Texture(image);
image.Dispose();
return texture;
}
public static Texture RenderStar(float radius) {
IPath path = new Star(x: radius, y: radius, prongs: 5, innerRadii: radius * 0.4f, outerRadii: radius, angle: Util.PI);
Image<Rgba32> image = MakeImage(path.Bounds.Width, path.Bounds.Height);
image.Mutate(x => x.Fill(Color.White, path));
Texture texture = new Texture(image);
image.Dispose();
return texture;
}
}
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public class Game : GameWindow {
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public Game(GameWindowSettings gwSettings, NativeWindowSettings nwSettings) : base(gwSettings, nwSettings) {}
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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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UiGeometry geometry = new();
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FpsCounter fpsCounter = new();
// Input handling.
long downTimer = Int64.MaxValue;
long upTimer = Int64.MaxValue;
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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> photos = new();
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HashSet<int> loadedImages = new();
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int photoIndex = 0;
int ribbonIndex = 0;
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Shader shader = new();
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Matrix4 projection;
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float zoomLevel = 0f;
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protected override void OnUpdateFrame(FrameEventArgs e) {
base.OnUpdateFrame(e);
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Console.WriteLine("update");
long now = DateTime.Now.Ticks;
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KeyboardState input = KeyboardState;
// FIXME: add a confirm dialog before closing. (Also for the window-close button.)
// Close when Escape is pressed.
if (input.IsKeyDown(Keys.Escape)) {
Close();
}
// Track keyboard repeat times for advancing up/down.
if (!input.IsKeyDown(Keys.Down)) {
downTimer = Int64.MaxValue;
}
if (!input.IsKeyDown(Keys.Up)) {
upTimer = Int64.MaxValue;
}
// Look for mouse clicks on thumbnails.
//
// 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.ThumbnailBoxes.Count; i++) {
Box2i box = geometry.ThumbnailBoxes[i];
if (box.ContainsInclusive((Vector2i) MouseState.Position)) {
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--;
}
// FIXME: make a proper Model class for tracking the state of the controls?
if (input.IsKeyPressed(Keys.Down) || now > downTimer) {
downTimer = now + 10000 * 200;
photoIndex++;
}
if (input.IsKeyPressed(Keys.Up) || now > upTimer) {
upTimer = now + 10000 * 200;
photoIndex--;
}
if (input.IsKeyPressed(Keys.Home)) {
photoIndex = 0;
}
if (input.IsKeyPressed(Keys.End)) {
photoIndex = photos.Count - 1;
}
if (input.IsKeyPressed(Keys.PageDown)) {
photoIndex += 10;
}
if (input.IsKeyPressed(Keys.PageUp)) {
photoIndex -= 10;
}
// Make sure the photoIndex is actually valid.
photoIndex = Math.Clamp(photoIndex, 0, photos.Count - 1);
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if (input.IsKeyDown(Keys.D0) || input.IsKeyDown(Keys.GraveAccent)) {
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zoomLevel = 0f;
}
if (input.IsKeyDown(Keys.D1)) {
zoomLevel = 1f;
}
if (input.IsKeyDown(Keys.D2)) {
zoomLevel = 2f;
}
if (input.IsKeyDown(Keys.D3)) {
zoomLevel = 4f;
}
if (input.IsKeyDown(Keys.D4)) {
zoomLevel = 8f;
}
if (input.IsKeyDown(Keys.D5)) {
zoomLevel = 16f;
}
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}
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protected override void OnLoad() {
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base.OnLoad();
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GL.ClearColor(0f, 0f, 0f, 1f);
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GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
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VertexArrayObject = GL.GenVertexArray();
GL.BindVertexArray(VertexArrayObject);
VertexBufferObject = GL.GenBuffer();
ElementBufferObject = GL.GenBuffer();
GL.BindBuffer(BufferTarget.ArrayBuffer, VertexBufferObject);
GL.BufferData(BufferTarget.ArrayBuffer, vertices.Length * sizeof(float), vertices, BufferUsageHint.DynamicDraw);
GL.BindBuffer(BufferTarget.ElementArrayBuffer, ElementBufferObject);
GL.BufferData(BufferTarget.ElementArrayBuffer, indices.Length * sizeof(uint), indices, BufferUsageHint.DynamicDraw);
shader.Init();
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shader.Use();
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// Because there's 5 floats between the start of the first vertex and the start of the second,
// the stride is 5 * sizeof(float).
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// This will now pass the new vertex array to the buffer.
var vertexLocation = shader.GetAttribLocation("aPosition");
GL.EnableVertexAttribArray(vertexLocation);
GL.VertexAttribPointer(vertexLocation, 3, VertexAttribPointerType.Float, false, 5 * sizeof(float), 0);
// Next, we also setup texture coordinates. It works in much the same way.
// We add an offset of 3, since the texture coordinates comes after the position data.
// We also change the amount of data to 2 because there's only 2 floats for texture coordinates.
var texCoordLocation = shader.GetAttribLocation("aTexCoord");
GL.EnableVertexAttribArray(texCoordLocation);
GL.VertexAttribPointer(texCoordLocation, 2, VertexAttribPointerType.Float, false, 5 * sizeof(float), 3 * sizeof(float));
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// Load photos from a directory.
// string[] files = Directory.GetFiles(@"c:\users\colin\desktop\photos-test\");
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// string[] files = Directory.GetFiles(@"c:\users\colin\pictures\photos\2023\07\14\");
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// string[] files = Directory.GetFiles(@"G:\DCIM\100EOSR6\");
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// string[] files = Directory.GetFiles(@"C:\Users\colin\Pictures\photos\2018\06\23");
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string[] files = Directory.GetFiles(@"C:\Users\colin\Desktop\Germany all\104D7000");
// string[] files = Directory.GetFiles(@"C:\Users\colin\Desktop\many-birds\");
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for (int i = 0; i < files.Count(); i++) {
string file = files[i];
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if (file.ToLower().EndsWith(".jpg")) {
Photo photo = new Photo(file, TEXTURE_BLACK);
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photos.Add(photo);
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}
}
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photos.Sort(ComparePhotosByDate);
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}
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private static int ComparePhotosByDate(Photo x, Photo y) {
int compare = x.DateTimeOriginal.CompareTo(y.DateTimeOriginal);
if (compare != 0) {
return compare;
}
// If the photos have the same seconds value, sort by filename
// (since cameras usually increment the filename for successive shots.)
return x.Filename.CompareTo(y.Filename);
}
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protected override void OnUnload() {
base.OnUnload();
}
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private async void LoadAndUnloadImagesAsync() {
int minUnloadedImage = Math.Max(0, photoIndex - 40);
int maxUnloadedImage = Math.Min(photoIndex + 40, photos.Count - 1);
int minLoadedImage = Math.Max(0, photoIndex - 20);
int maxLoadedImage = Math.Min(photoIndex + 20, photos.Count - 1);
// First, unload images that are far outside our window.
// FIXME: also cancel any in-progress loading tasks that have moved outside our window.
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// FIXME: maybe use an LRU cache for evicting images?
// FIXME: keep around thumbnail-sized textures?
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foreach (int i in loadedImages) {
if (i < minUnloadedImage || i > maxUnloadedImage) {
// Console.WriteLine("unloading " + i);
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loadedImages.Remove(i);
photos[i].UnloadAsync();
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}
}
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// Then, start loading any images that aren't in our window.
for (int i = minLoadedImage; i <= maxLoadedImage; i++) {
if (!loadedImages.Contains(i)) {
// Console.WriteLine("loading " + i);
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loadedImages.Add(i);
await Task.Run( () => { photos[i].LoadAsync(); });
}
}
}
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protected override void OnRenderFrame(FrameEventArgs e) {
base.OnRenderFrame(e);
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Console.WriteLine("render");
fpsCounter.Update();
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LoadAndUnloadImagesAsync();
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GL.Clear(ClearBufferMask.ColorBufferBit);
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GL.BindBuffer(BufferTarget.ArrayBuffer, VertexBufferObject); HashSet<int> loadedImages = new();
GL.ActiveTexture(TextureUnit.Texture0);
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Photo activePhoto = photos[photoIndex];
Texture active = activePhoto.Texture();
// FIXME: make a function for scaling & centering one box on another.
float scaleX = 1f * geometry.PhotoBox.Size.X / active.Size.X;
float scaleY = 1f * geometry.PhotoBox.Size.Y / active.Size.Y;
float scale = Math.Min(scaleX, scaleY);
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if (zoomLevel > 0f) {
scale = zoomLevel;
}
Vector2i renderSize = (Vector2i) (((Vector2) active.Size) * scale);
Vector2i center = (Vector2i) geometry.PhotoBox.Center;
Box2i photoBox = Util.MakeBox(center.X - renderSize.X / 2, center.Y - renderSize.Y / 2, renderSize.X, renderSize.Y);
DrawTexture(active, photoBox);
// Draw thumbnail boxes.
ribbonIndex = Math.Clamp(photoIndex - (geometry.ThumbnailBoxes.Count - 1) / 2, 0, Math.Max(0, photos.Count - geometry.ThumbnailBoxes.Count));
DrawFilledBox(geometry.ThumbnailBox, Color4.Black);
for (int i = 0; i < geometry.ThumbnailBoxes.Count; i++) {
if (ribbonIndex + i >= photos.Count) {
break;
}
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Box2i box = geometry.ThumbnailBoxes[i];
DrawTexture(photos[ribbonIndex + i].Texture(), box);
if (ribbonIndex + i == photoIndex) {
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DrawBox(box, 5, Color4.Black);
DrawBox(box, 3, Color4.White);
}
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}
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// Draw status box.
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DrawFilledBox(geometry.StatusBox, Color4.Black);
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DrawText(activePhoto.Description(), geometry.StatusBox.Min.X + 80, geometry.StatusBox.Min.Y);
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DrawText($" FPS: {fpsCounter.Fps}", geometry.StatusBox.Max.X - 76, geometry.StatusBox.Min.Y);
if (activePhoto.Loaded) {
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DrawText($"{(scale * 100):F1}%", geometry.StatusBox.Min.X, geometry.StatusBox.Min.Y);
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}
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SwapBuffers();
}
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void DrawTexture(Texture texture, Box2i box) {
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DrawTexture(texture, box, Color4.White);
}
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void DrawTexture(Texture texture, Box2i box, Color4 color) {
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GL.Uniform4(shader.GetUniformLocation("color"), color);
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SetVertices(box.Min.X, box.Min.Y, box.Size.X, box.Size.Y);
GL.BufferData(BufferTarget.ArrayBuffer, vertices.Length * sizeof(float), vertices, BufferUsageHint.DynamicDraw);
GL.BindTexture(TextureTarget.Texture2D, texture.Handle);
GL.DrawElements(PrimitiveType.Triangles, indices.Length, DrawElementsType.UnsignedInt, 0);
}
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void DrawBox(Box2i box, int thickness, Color4 color) {
DrawTexture(TEXTURE_WHITE, Util.MakeBox(box.Min.X, box.Min.Y, box.Size.X, thickness), color);
DrawTexture(TEXTURE_WHITE, Util.MakeBox(box.Min.X, box.Min.Y, thickness, box.Size.Y), color);
DrawTexture(TEXTURE_WHITE, Util.MakeBox(box.Min.X, box.Max.Y - thickness, box.Size.X, thickness), color);
DrawTexture(TEXTURE_WHITE, Util.MakeBox(box.Max.X - thickness, box.Min.Y, thickness, box.Size.Y), color);
}
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void DrawFilledBox(Box2i box, Color4 color) {
DrawTexture(TEXTURE_WHITE, Util.MakeBox(box.Min.X, box.Min.Y, box.Size.X, box.Size.Y), color);
}
void DrawText(string text, int x, int y) {
Texture label = Util.RenderText(text);
DrawTexture(label, Util.MakeBox(x, y, label.Size.X, label.Size.Y));
label.Dispose();
}
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protected override void OnResize(ResizeEventArgs e) {
base.OnResize(e);
Console.WriteLine($"OnResize: {e.Width}x{e.Height}");
geometry = new UiGeometry(e.Size);
projection = Matrix4.CreateOrthographicOffCenter(0f, e.Width, e.Height, 0f, -1f, 1f);
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GL.UniformMatrix4(shader.GetUniformLocation("projection"), true, ref projection);
GL.Viewport(0, 0, e.Width, e.Height);
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}
private void SetVertices(float left, float top, float width, float height) {
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// top left
vertices[0] = left;
vertices[1] = top;
vertices[2] = 0f;
vertices[3] = 0f;
vertices[4] = 0f;
// top right
vertices[5] = left + width;
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vertices[6] = top;
vertices[7] = 0f;
vertices[8] = 1f;
vertices[9] = 0f;
// bottom right
vertices[10] = left + width;
vertices[11] = top + height;
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vertices[12] = 0f;
vertices[13] = 1f;
vertices[14] = 1f;
// bottom left
vertices[15] = left;
vertices[16] = top + height;
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vertices[17] = 0f;
vertices[18] = 0f;
vertices[19] = 1f;
}
}
static class Program {
static void Main(string[] args) {
List<MonitorInfo> monitors = Monitors.GetMonitors();
MonitorInfo bestMonitor = monitors[0];
int bestResolution = bestMonitor.HorizontalResolution * bestMonitor.VerticalResolution;
for (int i = 1; i < monitors.Count; i++) {
MonitorInfo monitor = monitors[i];
int resolution = monitor.HorizontalResolution * monitor.VerticalResolution;
if (resolution > bestResolution) {
bestResolution = resolution;
bestMonitor = monitor;
}
}
Console.WriteLine($"best monitor: {bestMonitor.HorizontalResolution}x{bestMonitor.VerticalResolution}");
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GameWindowSettings gwSettings = new();
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gwSettings.UpdateFrequency = 30.0;
gwSettings.RenderFrequency = 30.0;
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NativeWindowSettings nwSettings = new();
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nwSettings.WindowState = WindowState.Normal;
nwSettings.CurrentMonitor = bestMonitor.Handle;
nwSettings.Location = new Vector2i(bestMonitor.WorkArea.Min.X + 1, bestMonitor.WorkArea.Min.Y + 31);
nwSettings.Size = new Vector2i(bestMonitor.WorkArea.Size.X - 2, bestMonitor.WorkArea.Size.Y - 32);
nwSettings.MinimumSize = UiGeometry.MIN_WINDOW_SIZE;
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nwSettings.Title = "Totte";
// FIXME: nwSettings.Icon = ...
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using (Game game = new(gwSettings, nwSettings)) {
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game.Run();
}
}
}