From 378c13c869ec6fa9205dec9773ce9a55d2a20fac Mon Sep 17 00:00:00 2001
From: Josh Holtrop <jholtrop@gmail.com>
Date: Sun, 2 Sep 2012 23:17:01 -0400
Subject: [PATCH] add GLShader class

---
 src/client/GLShader.cc | 50 ++++++++++++++++++++++++++++++++++++++++++
 src/client/GLShader.h  | 19 ++++++++++++++++
 2 files changed, 69 insertions(+)
 create mode 100644 src/client/GLShader.cc
 create mode 100644 src/client/GLShader.h

diff --git a/src/client/GLShader.cc b/src/client/GLShader.cc
new file mode 100644
index 0000000..081f1e4
--- /dev/null
+++ b/src/client/GLShader.cc
@@ -0,0 +1,50 @@
+
+#include "GLShader.h"
+#include <iostream>
+
+using namespace std;
+
+GLShader::GLShader()
+{
+    m_id = 0;
+}
+
+GLShader::~GLShader()
+{
+    if (m_id > 0)
+    {
+        glDeleteShader(m_id);
+    }
+}
+
+bool GLShader::create(GLenum shaderType, const char *source)
+{
+    GLint status;
+
+    m_id = glCreateShader(shaderType);
+    if (m_id > 0)
+    {
+        glShaderSource(m_id, 1, &source, NULL);
+
+        glCompileShader(m_id);
+
+        glGetShaderiv(m_id, GL_COMPILE_STATUS, &status);
+        if (status == GL_TRUE)
+        {
+            return true;
+        }
+
+        GLint log_length;
+        cerr << "Error compiling shader" << endl;
+        glGetShaderiv(m_id, GL_INFO_LOG_LENGTH, &log_length);
+        if (log_length > 0)
+        {
+            char * log = new char[log_length];
+            glGetShaderInfoLog(m_id, log_length, &log_length, log);
+            cerr << "Shader Log:" << endl << log << endl;
+            delete[] log;
+        }
+        glDeleteShader(m_id);
+    }
+    return false;
+}
diff --git a/src/client/GLShader.h b/src/client/GLShader.h
new file mode 100644
index 0000000..fc20fbc
--- /dev/null
+++ b/src/client/GLShader.h
@@ -0,0 +1,19 @@
+
+#ifndef GLSHADER_H
+#define GLSHADER_H
+
+#include <GL/glew.h>
+
+class GLShader
+{
+    public:
+        GLShader();
+        ~GLShader();
+        bool create(GLenum shaderType, const char *source);
+        GLuint get_id() { return m_id; }
+        bool valid() { return m_id > 0; }
+    protected:
+        GLuint m_id;
+};
+
+#endif