| static private UseTexture ( int TextureIndex, UseMode Mode ) : int | ||
| TextureIndex | int | |
| Mode | UseMode | |
| return | int | |
//
// INIT LOADING RESOURCES
//
/// <summary>Initializes the textures used for the loading screen</summary>
internal static void InitLoading()
{
customLoadScreen = false;
string Path = Program.FileSystem.GetDataFolder("In-game");
int bkgNo = Game.Generator.Next(numOfLoadingBkgs);
if (TextureLoadingBkg == -1)
{
string file = OpenBveApi.Path.CombineFile(Path, "loadingbkg_" + bkgNo + ".png");
if (System.IO.File.Exists(file))
{
TextureLoadingBkg = TextureManager.RegisterTexture(file, TextureManager.TextureWrapMode.ClampToEdge, TextureManager.TextureWrapMode.ClampToEdge, false);
TextureManager.UseTexture(TextureLoadingBkg, TextureManager.UseMode.LoadImmediately);
}
}
// choose logo size according to screen width
string fName;
if (Renderer.ScreenWidth > 2048)
{
fName = LogoFileName[2];
}
else if (Renderer.ScreenWidth > 1024)
{
fName = LogoFileName[1];
}
else
{
fName = LogoFileName[0];
}
fName = OpenBveApi.Path.CombineFile(Path, fName);
if (System.IO.File.Exists(fName))
{
TextureLogo = TextureManager.RegisterTexture(fName, TextureManager.TextureWrapMode.ClampToEdge, TextureManager.TextureWrapMode.ClampToEdge, false);
TextureManager.UseTexture(TextureLogo, TextureManager.UseMode.LoadImmediately);
}
}
/// <summary>Renders a string to the screen.</summary>
/// <param name="font">The font to use.</param>
/// <param name="text">The string to render.</param>
/// <param name="location">The location.</param>
/// <param name="alignment">The alignment.</param>
/// <param name="color">The color.</param>
/// <remarks>This function sets the OpenGL blend function to glBlendFunc(Gl.GL_SRC_ALPHA, Gl.GL_ONE_MINUS_SRC_ALPHA).</remarks>
private static void DrawString(Fonts.OpenGlFont font, string text, Point location, TextAlignment alignment, Color128 color)
{
GL.Enable(EnableCap.Blend);
if (text == null)
{
return;
}
/*
* Prepare the top-left coordinates for rendering, incorporating the
* orientation of the string in relation to the specified location.
* */
int left;
if ((alignment & TextAlignment.Left) == 0)
{
int width = 0;
for (int i = 0; i < text.Length; i++)
{
int texture;
Fonts.OpenGlFontChar data;
i += font.GetCharacterData(text, i, out texture, out data) - 1;
width += data.TypographicSize.Width;
}
if ((alignment & TextAlignment.Right) != 0)
{
left = location.X - width;
}
else
{
left = location.X - width / 2;
}
}
else
{
left = location.X;
}
int top;
if ((alignment & TextAlignment.Top) == 0)
{
int height = 0;
for (int i = 0; i < text.Length; i++)
{
int texture;
Fonts.OpenGlFontChar data;
i += font.GetCharacterData(text, i, out texture, out data) - 1;
if (data.TypographicSize.Height > height)
{
height = data.TypographicSize.Height;
}
}
if ((alignment & TextAlignment.Bottom) != 0)
{
top = location.Y - height;
}
else
{
top = location.Y - height / 2;
}
}
else
{
top = location.Y;
}
/*
* Render the string.
* */
GL.Enable(EnableCap.Texture2D);
for (int i = 0; i < text.Length; i++)
{
int texture;
Fonts.OpenGlFontChar data;
i += font.GetCharacterData(text, i, out texture, out data) - 1;
TextureManager.UseTexture(texture, TextureManager.UseMode.LoadImmediately);
{
GL.BindTexture(TextureTarget.Texture2D, TextureManager.Textures[texture].OpenGlTextureIndex);
int x = left - (data.PhysicalSize.Width - data.TypographicSize.Width) / 2;
int y = top - (data.PhysicalSize.Height - data.TypographicSize.Height) / 2;
/*
* In the first pass, mask off the background with pure black.
* */
GL.BlendFunc(BlendingFactor.Zero, BlendingFactor.OneMinusSrcColor);
GL.Begin(PrimitiveType.Polygon);
GL.Color4(color.A, color.A, color.A, 1.0f);
GL.TexCoord2(data.TextureCoordinates.Left, data.TextureCoordinates.Top);
GL.Vertex2(x, y);
GL.Color4(color.A, color.A, color.A, 1.0f);
GL.TexCoord2(data.TextureCoordinates.Right, data.TextureCoordinates.Top);
GL.Vertex2(x + data.PhysicalSize.Width, y);
GL.Color4(color.A, color.A, color.A, 1.0f);
GL.TexCoord2(data.TextureCoordinates.Right, data.TextureCoordinates.Bottom);
GL.Vertex2(x + data.PhysicalSize.Width, y + data.PhysicalSize.Height);
GL.Color4(color.A, color.A, color.A, 1.0f);
GL.TexCoord2(data.TextureCoordinates.Left, data.TextureCoordinates.Bottom);
GL.Vertex2(x, y + data.PhysicalSize.Height);
GL.End();
/*
* In the second pass, add the character onto the background.
* */
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.One);
GL.Begin(PrimitiveType.Polygon);
GL.Color4(color.R, color.G, color.B, color.A);
GL.TexCoord2(data.TextureCoordinates.Left, data.TextureCoordinates.Top);
GL.Vertex2(x, y);
GL.Color4(color.R, color.G, color.B, color.A);
GL.TexCoord2(data.TextureCoordinates.Right, data.TextureCoordinates.Top);
GL.Vertex2(x + data.PhysicalSize.Width, y);
GL.Color4(color.R, color.G, color.B, color.A);
GL.TexCoord2(data.TextureCoordinates.Right, data.TextureCoordinates.Bottom);
GL.Vertex2(x + data.PhysicalSize.Width, y + data.PhysicalSize.Height);
GL.Color4(color.R, color.G, color.B, color.A);
GL.TexCoord2(data.TextureCoordinates.Left, data.TextureCoordinates.Bottom);
GL.Vertex2(x, y + data.PhysicalSize.Height);
GL.End();
}
left += data.TypographicSize.Width;
}
GL.Disable(EnableCap.Blend);
GL.BlendFunc(BlendingFactor.SrcAlpha, BlendingFactor.OneMinusSrcAlpha); // HACK //
}
//
// SET CUSTOM LOADING SCREEN BACKGROUND
//
/// <summary>Sets the loading screen background to a custom image</summary>
internal static void SetLoadingBkg(string fileName)
{
TextureLoadingBkg = TextureManager.RegisterTexture(fileName, TextureManager.TextureWrapMode.ClampToEdge, TextureManager.TextureWrapMode.ClampToEdge, false);
TextureManager.UseTexture(TextureLoadingBkg, TextureManager.UseMode.LoadImmediately);
customLoadScreen = true;
}
