/// <summary>Draws a rectangle.</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>
internal static void DrawRectangle(Textures.Texture texture, Point point, Size size, Color128? color) {
// TODO: Remove Nullable<T> from color once RenderOverlayTexture and RenderOverlaySolid are fully replaced.
if (texture == null || !Textures.LoadTexture(texture, Textures.OpenGlTextureWrapMode.ClampClamp)) {
GL.Disable(EnableCap.Texture2D);
if (color.HasValue) {
GL.Color4(color.Value.R, color.Value.G, color.Value.B, color.Value.A);
}
GL.Begin(PrimitiveType.Quads);
GL.Vertex2(point.X, point.Y);
GL.Vertex2(point.X + size.Width, point.Y);
GL.Vertex2(point.X + size.Width, point.Y + size.Height);
GL.Vertex2(point.X, point.Y + size.Height);
GL.End();
} else {
GL.Enable(EnableCap.Texture2D);
GL.BindTexture(TextureTarget.Texture2D, texture.OpenGlTextures[(int)Textures.OpenGlTextureWrapMode.ClampClamp].Name);
if (color.HasValue) {
GL.Color4(color.Value.R, color.Value.G, color.Value.B, color.Value.A);
}
GL.Begin(PrimitiveType.Quads);
GL.TexCoord2(0.0f, 0.0f);
GL.Vertex2(point.X, point.Y);
GL.TexCoord2(1.0f, 0.0f);
GL.Vertex2(point.X + size.Width, point.Y);
GL.TexCoord2(1.0f, 1.0f);
GL.Vertex2(point.X + size.Width, point.Y + size.Height);
GL.TexCoord2(0.0f, 1.0f);
GL.Vertex2(point.X, point.Y + size.Height);
GL.End();
}
}
/// <summary>Draws a rectangle.</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>
internal static void DrawRectangle(int texture, Point point, Size size, Color128? color)
{
GL.Enable(EnableCap.Blend);
// TODO: Remove Nullable<T> from color once RenderOverlayTexture and RenderOverlaySolid are fully replaced.
if (texture == -1)
{
GL.Disable(EnableCap.Texture2D);
if (color.HasValue)
{
GL.Color4(color.Value.R, color.Value.G, color.Value.B, color.Value.A);
}
GL.Begin(PrimitiveType.Quads);
GL.Vertex2(point.X, point.Y);
GL.Vertex2(point.X + size.Width, point.Y);
GL.Vertex2(point.X + size.Width, point.Y + size.Height);
GL.Vertex2(point.X, point.Y + size.Height);
GL.End();
}
else
{
GL.Enable(EnableCap.Texture2D);
GL.BindTexture(TextureTarget.Texture2D, TextureManager.Textures[texture].OpenGlTextureIndex);
if (color.HasValue)
{
GL.Color4(color.Value.R, color.Value.G, color.Value.B, color.Value.A);
}
GL.Begin(PrimitiveType.Quads);
if(TextureManager.Texture.VFlip == true)
{
GL.TexCoord2(0.0f, 1.0f);
GL.Vertex2(point.X, point.Y);
GL.TexCoord2(1.0f, 1.0f);
GL.Vertex2(point.X + size.Width, point.Y);
GL.TexCoord2(1.0f, 0.0f);
GL.Vertex2(point.X + size.Width, point.Y + size.Height);
GL.TexCoord2(0.0f, 0.0f);
GL.Vertex2(point.X, point.Y + size.Height);
GL.End();
}
// else
// {
// GL.TexCoord2(0.0f, 0.0f);
// GL.Vertex2(point.X, point.Y);
// GL.TexCoord2(1.0f, 0.0f);
// GL.Vertex2(point.X + size.Width, point.Y);
// GL.TexCoord2(1.0f, 1.0f);
// GL.Vertex2(point.X + size.Width, point.Y + size.Height);
// GL.TexCoord2(0.0f, 1.0f);
// GL.Vertex2(point.X, point.Y + size.Height);
// GL.End();
// }
}
GL.Disable(EnableCap.Blend);
}
/// <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="orientation">The orientation.</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)
{
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++) {
Textures.Texture 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++) {
Textures.Texture 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.glEnable(Gl.GL_TEXTURE_2D);
for (int i = 0; i < text.Length; i++) {
Textures.Texture texture;
Fonts.OpenGlFontChar data;
i += font.GetCharacterData(text, i, out texture, out data) - 1;
if (Textures.LoadTexture(texture, Textures.OpenGlTextureWrapMode.ClampClamp)) {
Gl.glBindTexture(Gl.GL_TEXTURE_2D, texture.OpenGlTextures[(int)Textures.OpenGlTextureWrapMode.ClampClamp].Name);
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.glBlendFunc(Gl.GL_ZERO, Gl.GL_ONE_MINUS_SRC_COLOR);
Gl.glBegin(Gl.GL_POLYGON);
Gl.glColor4f(color.A, color.A, color.A, 1.0f);
Gl.glTexCoord2f(data.TextureCoordinates.Left, data.TextureCoordinates.Top);
Gl.glVertex2f(x, y);
Gl.glColor4f(color.A, color.A, color.A, 1.0f);
Gl.glTexCoord2f(data.TextureCoordinates.Right, data.TextureCoordinates.Top);
Gl.glVertex2f(x + data.PhysicalSize.Width, y);
Gl.glColor4f(color.A, color.A, color.A, 1.0f);
Gl.glTexCoord2f(data.TextureCoordinates.Right, data.TextureCoordinates.Bottom);
Gl.glVertex2f(x + data.PhysicalSize.Width, y + data.PhysicalSize.Height);
Gl.glColor4f(color.A, color.A, color.A, 1.0f);
Gl.glTexCoord2f(data.TextureCoordinates.Left, data.TextureCoordinates.Bottom);
Gl.glVertex2f(x, y + data.PhysicalSize.Height);
Gl.glEnd();
/*
* In the second pass, add the character onto the background.
* */
Gl.glBlendFunc(Gl.GL_SRC_ALPHA, Gl.GL_ONE);
Gl.glBegin(Gl.GL_POLYGON);
Gl.glColor4f(color.R, color.G, color.B, color.A);
Gl.glTexCoord2f(data.TextureCoordinates.Left, data.TextureCoordinates.Top);
Gl.glVertex2f(x, y);
Gl.glColor4f(color.R, color.G, color.B, color.A);
Gl.glTexCoord2f(data.TextureCoordinates.Right, data.TextureCoordinates.Top);
Gl.glVertex2f(x + data.PhysicalSize.Width, y);
Gl.glColor4f(color.R, color.G, color.B, color.A);
Gl.glTexCoord2f(data.TextureCoordinates.Right, data.TextureCoordinates.Bottom);
Gl.glVertex2f(x + data.PhysicalSize.Width, y + data.PhysicalSize.Height);
Gl.glColor4f(color.R, color.G, color.B, color.A);
Gl.glTexCoord2f(data.TextureCoordinates.Left, data.TextureCoordinates.Bottom);
Gl.glVertex2f(x, y + data.PhysicalSize.Height);
Gl.glEnd();
}
left += data.TypographicSize.Width;
}
Gl.glBlendFunc(Gl.GL_SRC_ALPHA, Gl.GL_ONE_MINUS_SRC_ALPHA); // HACK //
}
/// <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="orientation">The orientation.</param>
/// <param name="color">The color.</param>
/// <param name="shadow">Whether to draw a shadow.</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, bool shadow)
{
if (shadow) {
DrawString(font, text, new Point(location.X - 1, location.Y + 1), alignment, new Color128(0.0f, 0.0f, 0.0f, 0.5f * color.A));
DrawString(font, text, location, alignment, color);
} else {
DrawString(font, text, location, alignment, color);
}
}
/// <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) {
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++) {
Textures.Texture 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++) {
Textures.Texture 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++) {
Textures.Texture texture;
Fonts.OpenGlFontChar data;
i += font.GetCharacterData(text, i, out texture, out data) - 1;
if (Textures.LoadTexture(texture, Textures.OpenGlTextureWrapMode.ClampClamp)) {
GL.BindTexture(TextureTarget.Texture2D,texture.OpenGlTextures[(int)Textures.OpenGlTextureWrapMode.ClampClamp].Name);
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(BlendingFactorSrc.Zero,BlendingFactorDest.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(BlendingFactorSrc.SrcAlpha,BlendingFactorDest.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.BlendFunc(BlendingFactorSrc.SrcAlpha,BlendingFactorDest.OneMinusSrcAlpha); // HACK //
}
/// <summary>Checks whether two colors are equal.</summary>
/// <param name="a">The first color.</param>
/// <param name="b">The second color.</param>
/// <returns>Whether the two colors are equal.</returns>
public bool Equals(Color128 a, Color128 b)
{
return(a.R != b.R | a.G != b.G | a.B != b.B | a.A != b.A);
}