/// <summary>Draws a simple 2D rectangle using two-pass alpha blending.</summary>
/// <param name="texture">The texture, or a null reference.</param>
/// <param name="point">The top-left coordinates in pixels.</param>
/// <param name="size">The size in pixels.</param>
/// <param name="color">The color, or a null reference.</param>
/// <param name="textureCoordinates">The texture coordinates to be applied</param>
public void DrawAlpha(Texture texture, Vector2 point, Vector2 size, Color128?color = null, Vector2?textureCoordinates = null)
{
renderer.UnsetBlendFunc();
renderer.SetAlphaFunc(AlphaFunction.Equal, 1.0f);
GL.DepthMask(true);
Draw(texture, point, size, color, textureCoordinates);
renderer.SetBlendFunc();
renderer.SetAlphaFunc(AlphaFunction.Less, 1.0f);
GL.DepthMask(false);
Draw(texture, point, size, color, textureCoordinates);
renderer.SetAlphaFunc(AlphaFunction.Equal, 1.0f);
}
/// <summary>Draws on OpenGL canvas the route/train loading screen</summary>
public void DrawLoadingScreen(OpenGlFont Font, double RouteProgress, double TrainProgress = double.MaxValue)
{
renderer.SetBlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha); //FIXME: Remove when text switches between two renderer types
GL.Clear(ClearBufferMask.ColorBufferBit | ClearBufferMask.DepthBufferBit);
renderer.Rectangle.Draw(null, Vector2.Null, new Vector2(renderer.Screen.Width, renderer.Screen.Height), bkg);
// BACKGROUND IMAGE
int fontHeight = (int)Font.FontSize;
int logoBottom;
//int versionTop;
int halfWidth = renderer.Screen.Width / 2;
if (TextureLoadingBkg != null && renderer.currentHost.LoadTexture(TextureLoadingBkg, OpenGlTextureWrapMode.ClampClamp))
{
int bkgHeight, bkgWidth;
// stretch the background image to fit at least one screen dimension
double ratio = TextureLoadingBkg.Width / (double)TextureLoadingBkg.Height;
if (renderer.Screen.Width / ratio > renderer.Screen.Height) // if screen ratio is shorter than bkg...
{
bkgHeight = renderer.Screen.Height; // set height to screen height
bkgWidth = (int)(renderer.Screen.Height * ratio); // and scale width proprtionally
}
else // if screen ratio is wider than bkg...
{
bkgWidth = renderer.Screen.Width; // set width to screen width
bkgHeight = (int)(renderer.Screen.Width / ratio); // and scale height accordingly
}
// draw the background image down from the top screen edge
renderer.Rectangle.Draw(TextureLoadingBkg, new Vector2((renderer.Screen.Width - bkgWidth) / 2.0, 0), new Vector2(bkgWidth, bkgHeight), Color128.White);
}
// if the route has no custom loading image, add the openBVE logo
// (the route custom image is loaded in OldParsers/CsvRwRouteParser.cs)
if (!customLoadScreen)
{
if (showLogo && renderer.ProgramLogo != null)
{
// place the centre of the logo at from the screen top
int logoTop = (int)(renderer.Screen.Height * logoCentreYFactor - renderer.ProgramLogo.Height / 2.0);
renderer.Rectangle.DrawAlpha(renderer.ProgramLogo, new Vector2((renderer.Screen.Width - renderer.ProgramLogo.Width) / 2.0, logoTop), new Vector2(renderer.ProgramLogo.Width, renderer.ProgramLogo.Height), Color128.White);
}
}
// ReSharper disable once RedundantIfElseBlock
else
{
// if custom route image, no logo and leave a conventional black area below the potential logo
}
if (showProgress)
{
logoBottom = renderer.Screen.Height / 2;
// take the height remaining below the logo and divide in 3 horiz. parts
int blankHeight = (renderer.Screen.Height - logoBottom) / 3;
// VERSION NUMBER
// place the version above the first division
int versionTop = logoBottom + blankHeight - fontHeight;
renderer.OpenGlString.Draw(Font, "Version " + ProgramVersion, new Vector2(halfWidth, versionTop), TextAlignment.TopMiddle, Color128.White);
// for the moment, do not show any URL; would go right below the first division
// DrawString(Fonts.SmallFont, "https://openbve-project.net",
// new Point(halfWidth, versionTop + fontHeight+2),
// TextAlignment.TopMiddle, Color128.White);
// PROGRESS MESSAGE AND BAR
// place progress bar right below the second division
int progressTop = renderer.Screen.Height - blankHeight;
int progressWidth = renderer.Screen.Width - progrMargin * 2;
double routeProgress = Math.Max(0.0, Math.Min(1.0, RouteProgress));
double trainProgress = Math.Max(0.0, Math.Min(1.0, TrainProgress));
// draw progress message right above the second division
string text = Translations.GetInterfaceString(routeProgress < 1.0 ? "loading_loading_route" : trainProgress < 1.0 ? "loading_loading_train" : "message_loading");
renderer.OpenGlString.Draw(Font, text, new Vector2(halfWidth, progressTop - fontHeight - 6), TextAlignment.TopMiddle, Color128.White);
// sum of route progress and train progress arrives up to 2.0:
// => times 50.0 to convert to %
double percent;
if (TrainProgress != double.MaxValue)
{
percent = 50.0 * (routeProgress + trainProgress);
}
else
{
percent = 100.0 * routeProgress;
}
string percStr = percent.ToString("0") + "%";
// progress frame
renderer.Rectangle.Draw(null, new Vector2(progrMargin - progrBorder, progressTop - progrBorder), new Vector2(progressWidth + progrBorder * 2, fontHeight + 6), Color128.White);
// progress bar
renderer.Rectangle.Draw(null, new Vector2(progrMargin, progressTop), new Vector2(progressWidth * (int)percent / 100.0, fontHeight + 4), ColourProgressBar);
// progress percent
renderer.OpenGlString.Draw(Font, percStr, new Vector2(halfWidth, progressTop), TextAlignment.TopMiddle, Color128.Black);
}
}
/// <summary>This function renderers full-screen motion blur if selected</summary>
public void RenderFullscreen(MotionBlurMode mode, double frameRate, double speed)
{
if (renderer.Screen.Minimized)
{
/*
* HACK:
* This breaks if minimized, even if we don't reset the W / H values
*/
return;
}
renderer.LastBoundTexture = null;
GL.Enable(EnableCap.Texture2D);
// render
if (PixelBufferOpenGlTextureIndex >= 0)
{
double strength;
switch (mode)
{
case MotionBlurMode.Low: strength = 0.0025; break;
case MotionBlurMode.Medium: strength = 0.0040; break;
case MotionBlurMode.High: strength = 0.0064; break;
default: strength = 0.0040; break;
}
double denominator = strength * frameRate * Math.Sqrt(speed);
float factor;
if (denominator > 0.001)
{
factor = (float)Math.Exp(-1.0 / denominator);
}
else
{
factor = 0.0f;
}
// initialize
renderer.SetBlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha);
GL.MatrixMode(MatrixMode.Projection);
GL.PushMatrix();
GL.LoadIdentity();
GL.Ortho(0.0f, renderer.Screen.Width, 0.0f, renderer.Screen.Height, -1.0f, 1.0f);
GL.MatrixMode(MatrixMode.Modelview);
GL.PushMatrix();
GL.LoadIdentity();
// render
GL.BindTexture(TextureTarget.Texture2D, PixelBufferOpenGlTextureIndex);
GL.Color4(1.0f, 1.0f, 1.0f, factor);
GL.Begin(PrimitiveType.Polygon);
GL.TexCoord2(0.0f, 0.0f);
GL.Vertex2(0.0f, 0.0f);
GL.TexCoord2(0.0f, 1.0f);
GL.Vertex2(0.0f, renderer.Screen.Height);
GL.TexCoord2(1.0f, 1.0f);
GL.Vertex2(renderer.Screen.Width, renderer.Screen.Height);
GL.TexCoord2(1.0f, 0.0f);
GL.Vertex2(renderer.Screen.Width, 0.0f);
GL.End();
// finalize
GL.PopMatrix();
GL.MatrixMode(MatrixMode.Projection);
GL.PopMatrix();
}
// retrieve buffer
{
GL.BindTexture(TextureTarget.Texture2D, PixelBufferOpenGlTextureIndex);
GL.CopyTexImage2D(TextureTarget.Texture2D, 0, InternalFormat.Rgb8, 0, 0, renderer.Screen.Width, renderer.Screen.Height, 0);
}
GL.Disable(EnableCap.Texture2D);
}
