Terrain shader lighting - work in progress.

1 files changed, 47 insertions, 0 deletions

diff --git a/shader.h b/shader.h
new file mode 100644
index 0000000..70f2361
--- /dev/null
+++ b/shader.h
@@ -0,0 +1,47 @@
+#ifndef SHADER_H
+#define SHADER_H
+
+#define GL_GLEXT_PROTOTYPES
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+class GLBaseShader {
+	friend class GLShaderProgram;
+
+	protected:
+		void shader_source(const char *filename);
+		void shader_source(std::string& filename);
+		unsigned int shader;
+	public:
+		GLBaseShader(GLenum);
+		~GLBaseShader();
+};
+
+class GLVertexShader : public GLBaseShader {
+	public:
+		GLVertexShader() : GLBaseShader(GL_VERTEX_SHADER) {};
+		GLVertexShader(const char *s) : GLBaseShader(GL_VERTEX_SHADER) { shader_source(s); };
+		GLVertexShader(std::string& s) : GLBaseShader(GL_VERTEX_SHADER) { shader_source(s); };
+};
+
+class GLFragmentShader : public GLBaseShader {
+	public:
+		GLFragmentShader() : GLBaseShader(GL_FRAGMENT_SHADER) {};
+		GLFragmentShader(const char *s) : GLBaseShader(GL_FRAGMENT_SHADER) { shader_source(s); };
+		GLFragmentShader(std::string& s) : GLBaseShader(GL_FRAGMENT_SHADER) { shader_source(s); };
+};
+
+class GLShaderProgram {
+	protected:
+		unsigned int program;
+	public:
+		GLShaderProgram();
+		~GLShaderProgram();
+
+		void attach(GLBaseShader&);
+		void detach(GLBaseShader&);
+		void link();
+		void use();
+};
+
+#endif