private void Build(int width, int height, bool mipMap,
RSurfaceFormat preferredFormat, RDepthFormat preferredDepthFormat, int preferredMultiSampleCount, bool shared)
{
var depth = 0;
var stencil = 0;
BackBuffer = new RTexture2D();
BackBuffer.Create(width, height, RPixelFormat.Rgba, preferredFormat);
GL.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.ColorAttachment0, TextureTarget.Texture2D, BackBuffer.Id, 0);
if (preferredDepthFormat != RDepthFormat.None)
{
DepthBuffer = new RTexture2D();
if (preferredDepthFormat == RDepthFormat.Depth24Stencil8 || preferredDepthFormat == RDepthFormat.Depth32Stencil8)
{
DepthBuffer.CreateDepth(width, height, RPixelFormat.DepthStencil, preferredDepthFormat);
GL.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.DepthStencilAttachment, TextureTarget.Texture2D, DepthBuffer.Id, 0);
}
else
{
DepthBuffer.CreateDepth(width, height, RPixelFormat.DepthComponent, preferredDepthFormat);
GL.FramebufferTexture2D(FramebufferTarget.Framebuffer, FramebufferAttachment.DepthAttachment, TextureTarget.Texture2D, DepthBuffer.Id, 0);
}
REngine.CheckGLError();
}
if (GL.CheckFramebufferStatus(FramebufferTarget.Framebuffer) != FramebufferErrorCode.FramebufferComplete)
{
throw new Exception("Error creating frame buffer: framebuffer is not complete");
}
}
public void Create(RPixelFormat format, ref RTexture2D posX, ref RTexture2D posY, ref RTexture2D posZ, ref RTexture2D negX, ref RTexture2D negY, ref RTexture2D negZ)
{
PixelInternalFormat inf = PixelInternalFormat.Rgba;
PixelFormat pf = PixelFormat.Rgba;
if (format == RPixelFormat.Bgr)
{
inf = PixelInternalFormat.Rgb;
pf = PixelFormat.Bgr;
}
if (format == RPixelFormat.Rgb)
{
inf = PixelInternalFormat.Rgb;
pf = PixelFormat.Rgb;
}
if (format == RPixelFormat.Bgra)
{
inf = PixelInternalFormat.Rgba;
pf = PixelFormat.Bgra;
}
if (format == RPixelFormat.Rgba)
{
inf = PixelInternalFormat.Rgba;
pf = PixelFormat.Rgba;
}
GL.ActiveTexture(TextureUnit.Texture0);
var posXcolors = posX.GetData <RColor>();
var posYcolors = posY.GetData <RColor>();
var posZcolors = posZ.GetData <RColor>();
var negXcolors = negX.GetData <RColor>();
var negYcolors = negY.GetData <RColor>();
var negZcolors = negZ.GetData <RColor>();
Bounds = posX.Bounds;
GL.GenTextures(1, out Id);
textureTarget = OpenTK.Graphics.OpenGL.TextureTarget.TextureCubeMap;
GL.BindTexture(textureTarget, Id);
SetTextureMagFilter(RTextureMagFilter.Nearest);
SetTextureMinFilter(RTextureMinFilter.Nearest);
SetTextureWrapMode(RTextureWrapMode.ClampToBorder, RTextureWrapMode.ClampToBorder);
GL.TexImage2D <RColor>(TextureTarget.TextureCubeMapPositiveX, 0, inf, Bounds.Width, Bounds.Height, 0, pf, PixelType.UnsignedByte, posXcolors);
GL.TexImage2D <RColor>(TextureTarget.TextureCubeMapPositiveY, 0, inf, Bounds.Width, Bounds.Height, 0, pf, PixelType.UnsignedByte, posYcolors);
GL.TexImage2D <RColor>(TextureTarget.TextureCubeMapPositiveZ, 0, inf, Bounds.Width, Bounds.Height, 0, pf, PixelType.UnsignedByte, posZcolors);
GL.TexImage2D <RColor>(TextureTarget.TextureCubeMapNegativeX, 0, inf, Bounds.Width, Bounds.Height, 0, pf, PixelType.UnsignedByte, negXcolors);
GL.TexImage2D <RColor>(TextureTarget.TextureCubeMapNegativeY, 0, inf, Bounds.Width, Bounds.Height, 0, pf, PixelType.UnsignedByte, negYcolors);
GL.TexImage2D <RColor>(TextureTarget.TextureCubeMapNegativeZ, 0, inf, Bounds.Width, Bounds.Height, 0, pf, PixelType.UnsignedByte, negZcolors);
}
internal void Generate(Face face, int size, int dpi)
{
face.SetCharSize(0, new Fixed26Dot6(size), 0, (uint)dpi);
Name = face.FamilyName;
face.LoadChar((uint)32, (LoadFlags.Render | LoadFlags.Monochrome | LoadFlags.Pedantic), LoadTarget.Normal);
SpaceWidth = face.Glyph.Metrics.HorizontalAdvance.ToInt32();
LineHeight = face.Height >> 6;
Kerning = face.HasKerning;
Size = size;
Ascent = face.Ascender >> 6;
Descent = face.Descender >> 6;
Glyphs = new List <RFontGlyph>();
for (int i = 33; i < 126; i++)
{
uint charIndex = face.GetCharIndex((uint)i);
face.LoadGlyph(charIndex, (LoadFlags.Render | LoadFlags.Color | LoadFlags.Pedantic | LoadFlags.CropBitmap), LoadTarget.Normal);
if (face.Glyph.Bitmap.PixelMode == PixelMode.None)
{
continue;
}
RFontGlyph glyph = new RFontGlyph();
glyph.bitmap = face.Glyph.Bitmap.ToGdipBitmap(Color.White);
glyph.Bounds = new Reactor.Math.Rectangle(0, 0, glyph.bitmap.Width, glyph.bitmap.Height);
glyph.CharIndex = i;
glyph.Offset = new Vector2(face.Glyph.Metrics.HorizontalBearingX.ToInt32(), face.Glyph.Metrics.HorizontalBearingY.ToInt32());
glyph.Advance = face.Glyph.Advance.X.ToInt32();
Glyphs.Add(glyph);
}
Glyphs.Sort(new FontGlyphSizeSorter());
var missed = -1;
var width = 16;
Bitmap b = new Bitmap(1, 1);
while (missed != 0)
{
missed = 0;
AtlasNode root = new AtlasNode();
root.bounds = new Reactor.Math.Rectangle(0, 0, width, width);
b.Dispose();
b = new Bitmap(width, width);
Graphics g = Graphics.FromImage(b);
g.Clear(Color.Transparent);
g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
for (var i = 0; i < Glyphs.Count; i++)
{
RFontGlyph glyph = Glyphs[i];
AtlasNode result = root.Insert(glyph.Bounds);
if (result != null)
{
Reactor.Math.Rectangle bounds = result.bounds;
//g.DrawImageUnscaledAndClipped(glyph.bitmap, bounds);
g.DrawImage(glyph.bitmap, bounds);
glyph.Bounds = bounds;
glyph.UVBounds = new Vector4((float)bounds.X, (float)bounds.Y, (float)bounds.Width, (float)bounds.Height);
glyph.UVBounds /= (float)width;
Glyphs[i] = glyph;
}
else
{
missed += 1;
break;
}
}
width += 16;
}
Texture = new RTexture2D();
Texture.LoadFromBitmap(b);
Texture.SetTextureMagFilter(RTextureMagFilter.Linear);
Texture.SetTextureMinFilter(RTextureMinFilter.LinearMipmapLinear);
Texture.SetTextureWrapMode(RTextureWrapMode.ClampToBorder, RTextureWrapMode.ClampToBorder);
REngine.CheckGLError();
}
