cleanups

1 files changed, 91 insertions, 0 deletions

diff --git a/src/render/state.cc b/src/render/state.cc
new file mode 100644
index 0000000..41ef158
--- /dev/null
+++ b/src/render/state.cc
@@ -0,0 +1,91 @@
+/*
+   render/state.cc
+   This file is part of the Osirion project and is distributed under 
+   the terms of the GNU General Public License version 2 
+*/
+
+#include "render/state.h"
+#include "render/gl.h"
+
+namespace render {
+
+int	State::render_width;
+int 	State::render_height;
+float	State::render_aspect;
+
+void State::init(int width, int height)
+{
+	resize(width, height);
+}
+
+void State::shutdown()
+{
+}
+
+void State::resize(int width, int height)
+{
+	render_width = width;
+	render_height = height;
+	
+	render_aspect = (float) width / (float) height;
+	
+	clear();
+}
+	
+void State::clear()
+{
+	// set viewport
+	gl::viewport(0, 0, render_width, render_height);
+
+	// set clear color
+	gl::clearcolor(0.0f, 0.0f, 0.0f, 1.0f);
+
+	// load identity matrices
+	gl::matrixmode(GL_MODELVIEW);
+	gl::loadidentity();
+
+	gl::matrixmode(GL_MODELVIEW);
+	gl::loadidentity();
+
+	// shading model: Gouraud (smooth, the default)
+	gl::shademodel(GL_SMOOTH);
+	//gl::shademodel(GL_FLAT);
+
+	// lighting settings for the default light GL_LIGHT0
+ 	GLfloat light_position[] = { 0.0, 0.0, 0.0, 1.0 };
+	GLfloat ambient_light[] = { 0.01f, 0.01f, 0.01f, 1.0f };
+	GLfloat diffuse_light[] = { 0.2f, 0.2f, 0.2f, 1.0f };
+	GLfloat specular_light[] = { 0.2f, 0.2f, 0.2f, 1.0f };
+	
+	glLightfv(GL_LIGHT0, GL_POSITION, light_position);
+	glLightfv(GL_LIGHT0, GL_AMBIENT, ambient_light);
+	glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse_light);
+	glLightfv(GL_LIGHT0, GL_SPECULAR, specular_light);
+
+	// GL_LIGHT0 is always enabled
+	gl::enable(GL_LIGHT0);
+
+	// color tracking
+	glColorMaterial(GL_FRONT, GL_AMBIENT_AND_DIFFUSE);	
+
+	// material settings	
+	GLfloat specular_reflectance[] = { 0.2f, 0.2f, 0.2f, 1.0f };
+	glMaterialfv(GL_FRONT, GL_SPECULAR, specular_reflectance);
+	glMateriali(GL_FRONT, GL_SHININESS, 128); // shininess 1-128
+
+	// alpha blending function
+	gl::blendfunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+	gl::disable(GL_LIGHTING);
+	gl::disable(GL_COLOR_MATERIAL);
+
+	gl::cullface(GL_BACK);
+	gl::frontface(GL_CCW);
+	gl::disable(GL_CULL_FACE);
+	gl::disable(GL_DEPTH_TEST);	
+	gl::disable(GL_BLEND);	
+
+	gl::disable(GL_TEXTURE_2D);
+}
+
+} // namespace render