split renderer into a file per class
This commit is contained in:
Chris Forbes
@@ -19,10 +19,8 @@
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#endregion
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using System;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.IO;
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using System.Runtime.InteropServices;
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using System.Drawing;
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using System.IO;
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using System.Windows.Forms;
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using OpenRA.FileFormats.Graphics;
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using Tao.Cg;
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@@ -257,13 +255,15 @@ namespace OpenRA.GlRenderer
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public void DrawIndexedPrimitives(PrimitiveType pt, Range<int> vertices, Range<int> indices)
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{
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Gl.glDrawElements(ModeFromPrimitiveType(pt), indices.End - indices.Start, Gl.GL_UNSIGNED_SHORT, new IntPtr(indices.Start * 2));
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Gl.glDrawElements(ModeFromPrimitiveType(pt), indices.End - indices.Start,
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Gl.GL_UNSIGNED_SHORT, new IntPtr(indices.Start * 2));
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CheckGlError();
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}
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public void DrawIndexedPrimitives(PrimitiveType pt, int numVerts, int numPrimitives)
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{
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Gl.glDrawElements(ModeFromPrimitiveType(pt), numPrimitives * IndicesPerPrimitive(pt), Gl.GL_UNSIGNED_SHORT, IntPtr.Zero);
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Gl.glDrawElements(ModeFromPrimitiveType(pt), numPrimitives * IndicesPerPrimitive(pt),
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Gl.GL_UNSIGNED_SHORT, IntPtr.Zero);
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CheckGlError();
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}
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@@ -289,231 +289,9 @@ namespace OpenRA.GlRenderer
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throw new NotImplementedException();
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}
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#region IGraphicsDevice Members
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public IVertexBuffer<Vertex> CreateVertexBuffer(int size)
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{
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return new VertexBuffer<Vertex>(this, size);
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}
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public IIndexBuffer CreateIndexBuffer(int size)
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{
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return new IndexBuffer(this, size);
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}
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public ITexture CreateTexture(Bitmap bitmap)
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{
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return new Texture(this, bitmap);
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}
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public IShader CreateShader(Stream stream)
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{
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return new Shader(this, stream);
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}
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#endregion
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}
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public class VertexBuffer<T> : IVertexBuffer<T>, IDisposable
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where T : struct
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{
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int buffer;
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public VertexBuffer(GraphicsDevice dev, int size)
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{
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Gl.glGenBuffers(1, out buffer);
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GraphicsDevice.CheckGlError();
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}
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public void SetData(T[] data)
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{
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Bind();
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Gl.glBufferData(Gl.GL_ARRAY_BUFFER,
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new IntPtr(Marshal.SizeOf(typeof(T)) * data.Length), data, Gl.GL_DYNAMIC_DRAW);
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GraphicsDevice.CheckGlError();
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}
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public void Bind()
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{
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Gl.glBindBuffer(Gl.GL_ARRAY_BUFFER, buffer);
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GraphicsDevice.CheckGlError();
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Gl.glVertexPointer(3, Gl.GL_FLOAT, Marshal.SizeOf(typeof(T)), IntPtr.Zero);
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GraphicsDevice.CheckGlError();
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Gl.glTexCoordPointer(4, Gl.GL_FLOAT, Marshal.SizeOf(typeof(T)), new IntPtr(12));
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GraphicsDevice.CheckGlError();
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}
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bool disposed;
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public void Dispose()
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{
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if (disposed) return;
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GC.SuppressFinalize(this);
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Gl.glDeleteBuffers(1, ref buffer);
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GraphicsDevice.CheckGlError();
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disposed = true;
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}
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//~VertexBuffer() { Dispose(); }
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}
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public class IndexBuffer : IIndexBuffer, IDisposable
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{
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int buffer;
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public IndexBuffer(GraphicsDevice dev, int size)
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{
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Gl.glGenBuffers(1, out buffer);
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GraphicsDevice.CheckGlError();
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}
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public void SetData(ushort[] data)
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{
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Bind();
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Gl.glBufferData(Gl.GL_ELEMENT_ARRAY_BUFFER,
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new IntPtr(2 * data.Length), data, Gl.GL_DYNAMIC_DRAW);
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GraphicsDevice.CheckGlError();
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}
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public void Bind()
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{
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Gl.glBindBuffer(Gl.GL_ELEMENT_ARRAY_BUFFER, buffer);
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GraphicsDevice.CheckGlError();
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}
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bool disposed;
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public void Dispose()
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{
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if (disposed) return;
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GC.SuppressFinalize(this);
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Gl.glDeleteBuffers(1, ref buffer);
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GraphicsDevice.CheckGlError();
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disposed = true;
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}
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//~IndexBuffer() { Dispose(); }
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}
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public class Shader : IShader
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{
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IntPtr effect;
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IntPtr technique;
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GraphicsDevice dev;
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public Shader(GraphicsDevice dev, Stream s)
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{
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this.dev = dev;
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string code;
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using (var file = new StreamReader(s))
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code = file.ReadToEnd();
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effect = Cg.cgCreateEffect(dev.cgContext, code, null);
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if (effect == IntPtr.Zero)
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{
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var err = Cg.cgGetErrorString(Cg.cgGetError());
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var results = Cg.cgGetLastListing(dev.cgContext);
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throw new InvalidOperationException(
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string.Format("Cg compile failed ({0}):\n{1}", err, results));
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}
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technique = Cg.cgGetFirstTechnique(effect);
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if (technique == IntPtr.Zero)
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throw new InvalidOperationException("No techniques");
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while (Cg.cgValidateTechnique(technique) == 0)
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{
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technique = Cg.cgGetNextTechnique(technique);
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if (technique == IntPtr.Zero)
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throw new InvalidOperationException("No valid techniques");
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}
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}
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public void Render(Action a)
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{
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CgGl.cgGLEnableProfile(dev.vertexProfile);
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CgGl.cgGLEnableProfile(dev.fragmentProfile);
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var pass = Cg.cgGetFirstPass(technique);
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while (pass != IntPtr.Zero)
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{
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Cg.cgSetPassState(pass);
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a();
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Cg.cgResetPassState(pass);
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pass = Cg.cgGetNextPass(pass);
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}
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CgGl.cgGLDisableProfile(dev.fragmentProfile);
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CgGl.cgGLDisableProfile(dev.vertexProfile);
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}
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public void SetValue(string name, ITexture t)
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{
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var texture = (Texture)t;
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var param = Cg.cgGetNamedEffectParameter(effect, name);
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if (param != IntPtr.Zero && texture != null)
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CgGl.cgGLSetupSampler(param, texture.texture);
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}
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public void SetValue(string name, float x, float y)
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{
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var param = Cg.cgGetNamedEffectParameter(effect, name);
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if (param != IntPtr.Zero)
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CgGl.cgGLSetParameter2f(param, x, y);
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}
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public void Commit() { }
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}
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public class Texture : ITexture
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{
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internal int texture;
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public Texture(GraphicsDevice dev, Bitmap bitmap)
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{
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Gl.glGenTextures(1, out texture);
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GraphicsDevice.CheckGlError();
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SetData(bitmap);
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}
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public void SetData(Bitmap bitmap)
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{
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if (!IsPowerOf2(bitmap.Width) || !IsPowerOf2(bitmap.Height))
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{
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//throw new InvalidOperationException( "non-power-of-2-texture" );
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bitmap = new Bitmap(bitmap, new Size(NextPowerOf2(bitmap.Width), NextPowerOf2(bitmap.Height)));
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}
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Gl.glBindTexture(Gl.GL_TEXTURE_2D, texture);
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GraphicsDevice.CheckGlError();
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var bits = bitmap.LockBits(
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new Rectangle(0, 0, bitmap.Width, bitmap.Height),
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ImageLockMode.ReadOnly,
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PixelFormat.Format32bppArgb);
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Gl.glTexParameteri(Gl.GL_TEXTURE_2D, Gl.GL_TEXTURE_BASE_LEVEL, 0);
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GraphicsDevice.CheckGlError();
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Gl.glTexParameteri(Gl.GL_TEXTURE_2D, Gl.GL_TEXTURE_MAX_LEVEL, 0);
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GraphicsDevice.CheckGlError();
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Gl.glTexImage2D(Gl.GL_TEXTURE_2D, 0, Gl.GL_RGBA8, bits.Width, bits.Height,
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0, Gl.GL_BGRA, Gl.GL_UNSIGNED_BYTE, bits.Scan0); // todo: weird strides
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GraphicsDevice.CheckGlError();
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bitmap.UnlockBits(bits);
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}
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bool IsPowerOf2(int v)
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{
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return (v & (v - 1)) == 0;
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}
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int NextPowerOf2(int v)
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{
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--v;
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v |= v >> 1;
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v |= v >> 2;
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v |= v >> 4;
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v |= v >> 8;
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++v;
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return v;
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}
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public IVertexBuffer<Vertex> CreateVertexBuffer(int size) { return new VertexBuffer<Vertex>(this, size); }
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public IIndexBuffer CreateIndexBuffer(int size) { return new IndexBuffer(this, size); }
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public ITexture CreateTexture(Bitmap bitmap) { return new Texture(this, bitmap); }
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public IShader CreateShader(Stream stream) { return new Shader(this, stream); }
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}
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}
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