1 files changed, 95 insertions, 0 deletions
diff --git a/Unicity.Renderer/Shader.cs b/Unicity.Renderer/Shader.cs
new file mode 100644
index 0000000..76393a0
--- /dev/null
+++ b/Unicity.Renderer/Shader.cs
@@ -0,0 +1,95 @@
+using OpenTK;
+using OpenTK.Graphics.OpenGL4;
+
+namespace Unicity.Renderer
+{
+    public class Shader
+    {
+        int id = 0;
+
+        public Shader(string vertexShaderSource, string fragmentShaderSource)
+        {
+            int vertexShader = GL.CreateShader(ShaderType.VertexShader);
+            GL.ShaderSource(vertexShader, vertexShaderSource);
+            GL.CompileShader(vertexShader);
+
+            int[] isCompiled = new int[1];
+            GL.GetShader(vertexShader, ShaderParameter.CompileStatus, isCompiled);
+            if (isCompiled[0] == 0)
+            {
+                string infoLog = GL.GetShaderInfoLog(vertexShader);
+                GL.DeleteShader(vertexShader);
+                throw new ShaderCompilationFailedException("Failed to compile vertex shader:\n" + infoLog);
+            }
+
+            int fragmentShader = GL.CreateShader(ShaderType.FragmentShader);
+            GL.ShaderSource(fragmentShader, fragmentShaderSource);
+            GL.CompileShader(fragmentShader);
+
+            GL.GetShader(fragmentShader, ShaderParameter.CompileStatus, isCompiled);
+            if (isCompiled[0] == 0)
+            {
+                string infoLog = GL.GetShaderInfoLog(fragmentShader);
+                GL.DeleteShader(fragmentShader);
+                GL.DeleteShader(vertexShader);
+                throw new ShaderCompilationFailedException("Failed to compile fragment shader:\n" + infoLog);
+            }
+
+            int program = GL.CreateProgram();
+
+            GL.AttachShader(program, vertexShader);
+            GL.AttachShader(program, fragmentShader);
+
+            GL.LinkProgram(program);
+
+            int[] isLinked = new int[1];
+            GL.GetProgram(program, GetProgramParameterName.LinkStatus, isLinked);
+            if (isLinked[0] == 0)
+            {
+                string infoLog = GL.GetProgramInfoLog(program);
+                GL.DeleteProgram(program);
+                GL.DeleteShader(fragmentShader);
+                GL.DeleteShader(vertexShader);
+                throw new ShaderCompilationFailedException("Failed to link shader program");
+            }
+
+            GL.DetachShader(program, vertexShader);
+            GL.DetachShader(program, fragmentShader);
+            GL.DeleteShader(vertexShader);
+            GL.DeleteShader(fragmentShader);
+
+            id = program;
+        }
+
+        public void Use()
+        {
+            GL.UseProgram(id);
+        }
+
+        public void SetUniform(string name, Matrix4 value)
+        {
+            int uniformLocation = GL.GetUniformLocation(id, name);
+
+            GL.UniformMatrix4(uniformLocation, false, ref value);
+        }
+
+        public void SetUniform(string name, Vector3 value)
+        {
+            int uniformLocation = GL.GetUniformLocation(id, name);
+
+            GL.Uniform3(uniformLocation, ref value);
+        }
+
+        public void SetUniform(string name, float value)
+        {
+            int uniformLocation = GL.GetUniformLocation(id, name);
+
+            GL.Uniform1(uniformLocation, value);
+        }
+
+        public void Delete()
+        {
+            GL.DeleteProgram(id);
+        }
+    }
+}