public void RenderTexture(RTexture texture, Math.Rectangle bounds, RColor color, Matrix matrix, bool font)
{
RViewport viewport = REngine.Instance._viewport;
UpdateQuad(bounds);
blendState.PlatformApplyState();
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
defaultShader.Bind();
defaultShader.SetSamplerValue(RTextureLayer.DIFFUSE, texture);
vertexQuad2D.Bind();
vertexQuad2D.BindVertexArray();
indexQuad2D.Bind();
defaultShader.SetUniformValue("projection", camera2d.Projection);
defaultShader.SetUniformValue("view", camera2d.View);
defaultShader.SetUniformValue("diffuse_color", color.ToVector4());
defaultShader.SetUniformValue("model", matrix);
defaultShader.SetUniformValue("font", font);
vertexQuad2D.VertexDeclaration.Apply(defaultShader, IntPtr.Zero);
GL.DrawElements(PrimitiveType.Triangles, indexQuad2D.IndexCount, DrawElementsType.UnsignedShort, IntPtr.Zero);
REngine.CheckGLError();
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.DstAlpha);
GL.Disable(EnableCap.Blend);
indexQuad2D.Unbind();
vertexQuad2D.UnbindVertexArray();
vertexQuad2D.Unbind();
defaultShader.Unbind();
}
public void RenderFullscreenQuad(RShader shader)
{
RViewport viewport = REngine.Instance._viewport;
quadVerts[0].Position = new Vector2(-1, -1);
quadVerts[0].TexCoord = new Vector2(0, 0);
quadVerts[1].Position = new Vector2(1, -1);
quadVerts[1].TexCoord = new Vector2(1, 0);
quadVerts[2].Position = new Vector2(1, 1);
quadVerts[2].TexCoord = new Vector2(1, 1);
quadVerts[3].Position = new Vector2(-1, 1);
quadVerts[3].TexCoord = new Vector2(0, 1);
vertexQuad2D.SetData <RVertexData2D>(quadVerts);
shader.Bind();
GL.Disable(EnableCap.DepthTest);
GL.Disable(EnableCap.CullFace);
vertexQuad2D.Bind();
vertexQuad2D.BindVertexArray();
indexQuad2D.Bind();
vertexQuad2D.VertexDeclaration.Apply(shader, IntPtr.Zero);
GL.DrawElements(PrimitiveType.Triangles, indexQuad2D.IndexCount, DrawElementsType.UnsignedShort, IntPtr.Zero);
REngine.CheckGLError();
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.DstAlpha);
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.CullFace);
indexQuad2D.Unbind();
vertexQuad2D.UnbindVertexArray();
vertexQuad2D.Unbind();
shader.Unbind();
}
public void RenderText(RFont font, Vector2 penPoint, string text, RColor color)
{
blendState.PlatformApplyState();
GL.Enable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
GL.Disable(EnableCap.CullFace);
defaultShader.Bind();
defaultShader.SetSamplerValue(RTextureLayer.DIFFUSE, font.Texture);
defaultShader.SetUniformValue("projection", camera2d.Projection);
defaultShader.SetUniformValue("view", camera2d.View);
defaultShader.SetUniformValue("diffuse_color", color.ToVector4());
defaultShader.SetUniformValue("model", Matrix.Identity);
font.Render(ref defaultShader, ref vertexQuad2D, ref indexQuad2D, text, penPoint, color, Matrix.Identity);
REngine.CheckGLError();
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.DstAlpha);
GL.Disable(EnableCap.Blend);
defaultShader.Unbind();
/*text = text.Replace("\r\n", "\n");
* char lastChar = '\0';
* Vector2 originalPoint = penPoint;
* foreach(char c in text)
* {
* if(c == ' ')
* {
* penPoint.X += font.Kerning(lastChar, c).X+font.SpaceWidth;
* lastChar = ' ';
* continue;
* }
* if(c == '\t')
* {
* penPoint.X += (font.Kerning(lastChar, c).X+(font.SpaceWidth * 2));
* continue;
* }
* if(c == '\r' || c=='\n')
* {
* penPoint.Y += font.LineHeight + (font.font.Height>>6);
* penPoint.X = originalPoint.X+font.Kerning(lastChar, c).X;
* continue;
* }
* penPoint.X += font.Kerning(lastChar, c).X;
* RTextureGlyph glyph = font.GetGlyph(c);
* int x0 = (int)(penPoint.X + (glyph.bitmapLeft));
* int y0 = (int)(penPoint.Y - (glyph.bitmapTop));
* //penPoint.X += glyph.Offset.X;
*
* RenderTexture(glyph, new Rectangle(x0, y0, (int)glyph.Bounds.Width, (int)glyph.Bounds.Height), color, Matrix.Identity, true);
* penPoint.X += glyph.advance.X;
* lastChar = c;
* }
* //font.RenderText(defaultShader, text, penPoint.X, penPoint.Y, size, size);
*/
}
public void End()
{
REngine.Instance.SetCamera(oldCamera);
GL.Enable(EnableCap.CullFace);
GL.Enable(EnableCap.DepthTest);
//GL.FrontFace(FrontFaceDirection.Ccw);
GL.CullFace(CullFaceMode.Back);
GL.DepthFunc(DepthFunction.Less);
GL.Disable(EnableCap.Blend);
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.Zero);
REngine.CheckGLError();
GL.DepthMask(true);
REngine.CheckGLError();
}
public void Begin()
{
oldCamera = REngine.Instance.GetCamera();
REngine.Instance.SetCamera(camera2d);
GL.Disable(EnableCap.DepthTest);
//GL.Viewport(0, (int)viewport.Width, 0, (int)viewport.Height);
//blendState.ColorWriteChannels = RColorWriteChannels.All;
GL.Enable(EnableCap.Blend);
blendState.PlatformApplyState();
GL.BlendFunc(BlendingFactorSrc.SrcAlpha, BlendingFactorDest.OneMinusSrcAlpha);
//GL.FrontFace(FrontFaceDirection.Ccw);
GL.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Fill);
REngine.CheckGLError();
GL.Disable(EnableCap.CullFace);
camera2d.Update();
}
internal void Init()
{
REngine.CheckGLError();
defaultShader = new RShader();
defaultShader.Load(RShaderResources.Basic2dEffectVert, RShaderResources.Basic2dEffectFrag, null);
Fonts.Add(RFont.Default);
quad = new RMeshBuilder();
quad.CreateQuad(new Vector2(0, 0), new Vector2(1, 1), true);
quadVerts = new RVertexData2D[4];
quadVerts[0] = new RVertexData2D(new Vector2(-1, -1), new Vector2(0, 0));
quadVerts[1] = new RVertexData2D(new Vector2(1, -1), new Vector2(1, 0));
quadVerts[2] = new RVertexData2D(new Vector2(1, 1), new Vector2(1, 1));
quadVerts[3] = new RVertexData2D(new Vector2(-1, 1), new Vector2(0, 1));
vertexQuad2D = new RVertexBuffer(quadVerts[0].Declaration, 4, RBufferUsage.WriteOnly);
vertexQuad2D.SetData <RVertexData2D>(quadVerts);
indexQuad2D = new RIndexBuffer(typeof(short), 6, RBufferUsage.WriteOnly);
indexQuad2D.SetData <short>(new short[6] {
0, 1, 2, 0, 2, 3
}, 0, 6);
initialized = true;
}
public static void LoadFromBitmap(ref Bitmap bitmap, out uint texturehandle, out TextureTarget dimension, out RPixelFormat format, out PixelType type)
{
dimension = (TextureTarget)0;
texturehandle = TextureLoaderParameters.OpenGLDefaultTexture;
ErrorCode GLError = ErrorCode.NoError;
Bitmap CurrentBitmap = null;
try // Exceptions will be thrown if any Problem occurs while working on the file.
{
CurrentBitmap = bitmap;
if (TextureLoaderParameters.FlipImages)
{
CurrentBitmap.RotateFlip(RotateFlipType.RotateNoneFlipY);
}
if (CurrentBitmap.Height > 1)
{
dimension = TextureTarget.Texture2D;
}
else
{
dimension = TextureTarget.Texture1D;
}
GL.GenTextures(1, out texturehandle);
GL.BindTexture(dimension, texturehandle);
#region Load Texture
OpenTK.Graphics.OpenGL.PixelInternalFormat pif;
OpenTK.Graphics.OpenGL.PixelFormat pf;
OpenTK.Graphics.OpenGL.PixelType pt;
switch (CurrentBitmap.PixelFormat)
{
case System.Drawing.Imaging.PixelFormat.Format8bppIndexed: // misses glColorTable setup
pif = OpenTK.Graphics.OpenGL.PixelInternalFormat.R8;
pf = OpenTK.Graphics.OpenGL.PixelFormat.Red;
pt = OpenTK.Graphics.OpenGL.PixelType.UnsignedByte;
break;
case System.Drawing.Imaging.PixelFormat.Format16bppArgb1555:
case System.Drawing.Imaging.PixelFormat.Format16bppRgb555: // does not work
pif = OpenTK.Graphics.OpenGL.PixelInternalFormat.Rgb5A1;
pf = OpenTK.Graphics.OpenGL.PixelFormat.Bgr;
pt = OpenTK.Graphics.OpenGL.PixelType.UnsignedShort5551Ext;
break;
/* case System.Drawing.Imaging.PixelFormat.Format16bppRgb565:
* pif = Reactor.Graphics.OpenGL.PixelInternalFormat.R5G6B5IccSgix;
* pf = Reactor.Graphics.OpenGL.PixelFormat.R5G6B5IccSgix;
* pt = Reactor.Graphics.OpenGL.PixelType.UnsignedByte;
* break;
*/
case System.Drawing.Imaging.PixelFormat.Format24bppRgb: // works
pif = OpenTK.Graphics.OpenGL.PixelInternalFormat.Rgb;
pf = OpenTK.Graphics.OpenGL.PixelFormat.Bgr;
pt = OpenTK.Graphics.OpenGL.PixelType.UnsignedByte;
break;
case System.Drawing.Imaging.PixelFormat.Format32bppRgb: // has alpha too? wtf?
case System.Drawing.Imaging.PixelFormat.Canonical:
case System.Drawing.Imaging.PixelFormat.Format32bppArgb: // works
pif = OpenTK.Graphics.OpenGL.PixelInternalFormat.Rgba;
pf = OpenTK.Graphics.OpenGL.PixelFormat.Bgra;
pt = OpenTK.Graphics.OpenGL.PixelType.UnsignedByte;
break;
default:
throw new ArgumentException("ERROR: Unsupported Pixel Format " + CurrentBitmap.PixelFormat);
}
format = (RPixelFormat)pf;
type = pt;
BitmapData Data = CurrentBitmap.LockBits(new System.Drawing.Rectangle(0, 0, CurrentBitmap.Width, CurrentBitmap.Height), ImageLockMode.ReadOnly, CurrentBitmap.PixelFormat);
if (Data.Height > 1)
{ // image is 2D
if (TextureLoaderParameters.BuildMipmapsForUncompressed)
{
throw new Exception("Cannot build mipmaps, Glu is deprecated.");
// Glu.Build2DMipmap(dimension, (int)pif, Data.Width, Data.Height, pf, pt, Data.Scan0);
}
else
{
GL.TexImage2D(dimension, 0, pif, Data.Width, Data.Height, TextureLoaderParameters.Border, pf, pt, Data.Scan0);
}
}
else
{ // image is 1D
if (TextureLoaderParameters.BuildMipmapsForUncompressed)
{
throw new Exception("Cannot build mipmaps, Glu is deprecated.");
// Glu.Build1DMipmap(dimension, (int)pif, Data.Width, pf, pt, Data.Scan0);
}
else
{
GL.TexImage1D(dimension, 0, pif, Data.Width, TextureLoaderParameters.Border, pf, pt, Data.Scan0);
}
}
//GL.Finish( );
REngine.CheckGLError();
GLError = GL.GetError( );
if (GLError != ErrorCode.NoError)
{
throw new ArgumentException("Error building TexImage. GL Error: " + GLError);
}
CurrentBitmap.UnlockBits(Data);
#endregion Load Texture
Setup(dimension);
return; // success
} catch (Exception e)
{
dimension = (TextureTarget)0;
texturehandle = TextureLoaderParameters.OpenGLDefaultTexture;
throw new ArgumentException("Texture Loading Error: Failed to read data.\n" + e);
// return; // failure
} finally
{
CurrentBitmap = null;
}
}