diff options
Diffstat (limited to 'src/OpenGL/Shader.cs')
| -rw-r--r-- | src/OpenGL/Shader.cs | 308 |
1 files changed, 0 insertions, 308 deletions
diff --git a/src/OpenGL/Shader.cs b/src/OpenGL/Shader.cs deleted file mode 100644 index f13000d7..00000000 --- a/src/OpenGL/Shader.cs +++ /dev/null @@ -1,308 +0,0 @@ -using System; -using System.Diagnostics; -using System.IO; -using System.Reflection; -using OpenTK; -using OpenTK.Graphics.OpenGL; - -namespace Crow -{ - public class Shader : IDisposable - { - #region CTOR - public Shader () - { - Compile (); - } - public Shader (string vertResId, string fragResId) - { - - Stream s = tryGetStreamForResource (vertResId); - if (s != null) { - using (StreamReader sr = new StreamReader (s)) { - vertSource = sr.ReadToEnd (); - } - } - - s = tryGetStreamForResource (fragResId); - if (s != null) { - using (StreamReader sr = new StreamReader (s)) { - fragSource = sr.ReadToEnd (); - } - } - - Compile (); - } - Stream tryGetStreamForResource(string resId){ - if (string.IsNullOrEmpty (resId)) - return null; - - Stream s = Assembly.GetEntryAssembly (). - GetManifestResourceStream (resId); - return s == null ? - Assembly.GetExecutingAssembly (). - GetManifestResourceStream (resId) : - s; - } - #endregion - - #region Sources - protected string _vertSource = @" - #version 330 - - precision highp float; - - uniform mat4 Projection; - uniform mat4 ModelView; - uniform mat4 Model; - uniform mat4 Normal; - - in vec2 in_position; - in vec2 in_tex; - - out vec2 texCoord; - - - void main(void) - { - texCoord = in_tex; - gl_Position = Projection * ModelView * Model * vec4(in_position, 0, 1); - }"; - - protected string _fragSource = @" - #version 330 - precision highp float; - - uniform vec4 color; - uniform sampler2D tex; - - in vec2 texCoord; - out vec4 out_frag_color; - - void main(void) - { - out_frag_color = texture( tex, texCoord); - }"; - string _geomSource = @""; -// #version 330 -// layout(triangles) in; -// layout(triangle_strip, max_vertices=3) out; -// void main() -// { -// for(int i=0; i<3; i++) -// { -// gl_Position = gl_in[i].gl_Position; -// EmitVertex(); -// } -// EndPrimitive(); -// }"; - #endregion - - #region Private and protected fields - protected int vsId, fsId, gsId, pgmId, - modelViewLocation, - modelLocation, - projectionLocation, - normalLocation, - colorLocation; - - Matrix4 projectionMat = Matrix4.Identity, - modelMat = Matrix4.Identity, - modelViewMat = Matrix4.Identity; - Vector4 color = new Vector4(1,1,1,1); - int texture; - #endregion - - - #region Public properties - public virtual string vertSource - { - get { return _vertSource;} - set { _vertSource = value; } - } - public virtual string fragSource - { - get { return _fragSource;} - set { _fragSource = value; } - } - public virtual string geomSource - { - get { return _geomSource; } - set { _geomSource = value; } - } - - public Matrix4 ProjectionMatrix{ - set { projectionMat = value; } - get { return projectionMat; } - } - public Matrix4 ModelViewMatrix { - set { modelViewMat = value; } - get { return modelViewMat; } - } - public Matrix4 ModelMatrix { - set { modelMat = value; } - get { return modelMat; } - } - public Vector4 Color { - set { color = value; } - get { return color; } - } - - public int Texture { - get { return texture; } - set { texture = value; } - } - - #endregion - - void updateNormalMatrix() - { - Matrix4 normalMat = (modelViewMat).Inverted(); - normalMat.Transpose (); - GL.UniformMatrix4 (normalLocation, false, ref normalMat); - } - - #region Public functions - public virtual void Compile() - { - Dispose (); - - pgmId = GL.CreateProgram(); - - if (!string.IsNullOrEmpty(vertSource)) - { - vsId = GL.CreateShader(ShaderType.VertexShader); - compileShader(vsId, vertSource); - } - if (!string.IsNullOrEmpty(fragSource)) - { - fsId = GL.CreateShader(ShaderType.FragmentShader); - compileShader(fsId, fragSource); - - } - if (!string.IsNullOrEmpty(geomSource)) - { - gsId = GL.CreateShader(ShaderType.GeometryShader); - compileShader(gsId,geomSource); - } - - if (vsId != 0) - GL.AttachShader(pgmId, vsId); - if (fsId != 0) - GL.AttachShader(pgmId, fsId); - if (gsId != 0) - GL.AttachShader(pgmId, gsId); - - BindVertexAttributes (); - - string info; - GL.LinkProgram(pgmId); - GL.GetProgramInfoLog(pgmId, out info); - - if (!string.IsNullOrEmpty (info)) { - Debug.WriteLine ("Linkage:"); - Debug.WriteLine (info); - } - - info = null; - - GL.ValidateProgram(pgmId); - GL.GetProgramInfoLog(pgmId, out info); - if (!string.IsNullOrEmpty (info)) { - Debug.WriteLine ("Validation:"); - Debug.WriteLine (info); - } - - GL.UseProgram (pgmId); - - GetUniformLocations (); - BindSamplesSlots (); - - Disable (); - } - - protected virtual void BindVertexAttributes() - { - GL.BindAttribLocation(pgmId, 0, "in_position"); - GL.BindAttribLocation(pgmId, 1, "in_tex"); - } - protected virtual void GetUniformLocations() - { - projectionLocation = GL.GetUniformLocation(pgmId, "Projection"); - modelViewLocation = GL.GetUniformLocation(pgmId, "ModelView"); - modelLocation = GL.GetUniformLocation(pgmId, "Model"); - normalLocation = GL.GetUniformLocation(pgmId, "Normal"); - colorLocation = GL.GetUniformLocation (pgmId, "color"); - - } - protected virtual void BindSamplesSlots(){ - GL.Uniform1(GL.GetUniformLocation (pgmId, "tex"), 0); - } - - public virtual void Enable(){ - GL.UseProgram (pgmId); - - GL.UniformMatrix4(projectionLocation, false, ref projectionMat); - GL.UniformMatrix4 (modelLocation, false, ref modelMat); - GL.UniformMatrix4 (modelViewLocation, false, ref modelViewMat); - updateNormalMatrix (); - GL.Uniform4 (colorLocation, color); - - if (texture < 0) - return; - - GL.ActiveTexture (TextureUnit.Texture0); - GL.BindTexture(TextureTarget.Texture2D, texture); - } - public virtual void Disable(){ - GL.UseProgram (0); - } - public static void Enable(Shader s) - { - if (s == null) - return; - s.Enable (); - } - public static void Disable(Shader s) - { - if (s == null) - return; - s.Disable (); - } - #endregion - - void compileShader(int shader, string source) - { - GL.ShaderSource(shader, source); - GL.CompileShader(shader); - - string info; - GL.GetShaderInfoLog(shader, out info); - Debug.WriteLine(info); - - int compileResult; - GL.GetShader(shader, ShaderParameter.CompileStatus, out compileResult); - if (compileResult != 1) - { - Debug.WriteLine("Compile Error!"); - Debug.WriteLine(source); - } - } - - #region IDisposable implementation - public virtual void Dispose () - { - if (GL.IsProgram (pgmId)) - GL.DeleteProgram (pgmId); - - if (GL.IsShader (vsId)) - GL.DeleteShader (vsId); - if (GL.IsShader (fsId)) - GL.DeleteShader (fsId); - if (GL.IsShader (gsId)) - GL.DeleteShader (gsId); - } - #endregion - } -} - |