From 3b21507274aa4f98644382903ae529c1fc2c7bd4 Mon Sep 17 00:00:00 2001
From: inmarket <andrewh@inmarket.com.au>
Date: Wed, 20 Aug 2014 01:36:33 +1000
Subject: GL3D GWIN window + demo

---
 3rdparty/tinygl-0.4-ugfx/examples/spin.c | 160 +++++++++++++++++++++++++++++++
 1 file changed, 160 insertions(+)
 create mode 100644 3rdparty/tinygl-0.4-ugfx/examples/spin.c

(limited to '3rdparty/tinygl-0.4-ugfx/examples/spin.c')

diff --git a/3rdparty/tinygl-0.4-ugfx/examples/spin.c b/3rdparty/tinygl-0.4-ugfx/examples/spin.c
new file mode 100644
index 00000000..339bf003
--- /dev/null
+++ b/3rdparty/tinygl-0.4-ugfx/examples/spin.c
@@ -0,0 +1,160 @@
+/* spin.c */
+
+
+/*
+ * Spinning box.  This program is in the public domain.
+ *
+ * Brian Paul
+ */
+
+
+#include <math.h>
+#include <stdio.h>
+
+#include <GL/glx.h> 
+#include <GL/gl.h> 
+#include "ui.h"
+
+
+
+
+static GLfloat Xrot, Xstep;
+static GLfloat Yrot, Ystep;
+static GLfloat Zrot, Zstep;
+static GLfloat Step = 5.0;
+static GLfloat Scale = 1.0;
+static GLuint Object;
+
+
+
+
+static GLuint make_object( void )
+{
+   GLuint list;
+
+   list = glGenLists( 1 );
+
+   glNewList( list, GL_COMPILE );
+
+   glBegin( GL_LINE_LOOP );
+   glColor3f( 1.0, 1.0, 1.0 );
+   glVertex3f(  1.0,  0.5, -0.4 );
+   glColor3f( 1.0, 0.0, 0.0 );
+   glVertex3f(  1.0, -0.5, -0.4 );
+   glColor3f( 0.0, 1.0, 0.0 );
+   glVertex3f( -1.0, -0.5, -0.4 );
+   glColor3f( 0.0, 0.0, 1.0 );
+   glVertex3f( -1.0,  0.5, -0.4 );
+   glEnd();
+
+   glColor3f( 1.0, 1.0, 1.0 );
+
+   glBegin( GL_LINE_LOOP );
+   glVertex3f(  1.0,  0.5, 0.4 );
+   glVertex3f(  1.0, -0.5, 0.4 );
+   glVertex3f( -1.0, -0.5, 0.4 );
+   glVertex3f( -1.0,  0.5, 0.4 );
+   glEnd();
+
+   glBegin( GL_LINES );
+   glVertex3f(  1.0,  0.5, -0.4 );   glVertex3f(  1.0,  0.5, 0.4 );
+   glVertex3f(  1.0, -0.5, -0.4 );   glVertex3f(  1.0, -0.5, 0.4 );
+   glVertex3f( -1.0, -0.5, -0.4 );   glVertex3f( -1.0, -0.5, 0.4 );
+   glVertex3f( -1.0,  0.5, -0.4 );   glVertex3f( -1.0,  0.5, 0.4 );
+   glEnd();
+
+
+   glEndList();
+
+   return list;
+}
+
+
+
+void reshape( int width, int height )
+{
+   glViewport(0, 0, (GLint)width, (GLint)height);
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+   glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 15.0 );
+   glMatrixMode(GL_MODELVIEW);
+}
+
+
+GLenum key(int k, GLenum mask)
+{
+   switch (k) {
+   case KEY_ESCAPE:
+       exit(0);
+   }
+   return GL_FALSE;
+}
+
+
+void draw( void )
+{
+   glClear( GL_COLOR_BUFFER_BIT );
+
+   glPushMatrix();
+
+   glTranslatef( 0.0, 0.0, -10.0 );
+   glScalef( Scale, Scale, Scale );
+   if (Xstep) {
+      glRotatef( Xrot, 1.0, 0.0, 0.0 );
+   }
+   else if (Ystep) {
+      glRotatef( Yrot, 0.0, 1.0, 0.0 );
+   }
+   else {
+      glRotatef( Zrot, 0.0, 0.0, 1.0 );
+   }
+
+   glCallList( Object );
+
+   glPopMatrix();
+
+   glFlush();
+   tkSwapBuffers();
+}
+
+
+void idle( void )
+{
+   Xrot += Xstep;
+   Yrot += Ystep;
+   Zrot += Zstep;
+
+   if (Xrot>=360.0) {
+      Xrot = Xstep = 0.0;
+      Ystep = Step;
+   }
+   else if (Yrot>=360.0) {
+      Yrot = Ystep = 0.0;
+      Zstep = Step;
+   }
+   else if (Zrot>=360.0) {
+      Zrot = Zstep = 0.0;
+      Xstep = Step;
+   }
+   draw();
+}
+
+void init(void)
+{
+   Object = make_object();
+   glCullFace( GL_BACK );
+/*   glEnable( GL_CULL_FACE );*/
+   glDisable( GL_DITHER );
+   glShadeModel( GL_FLAT );
+/*   glEnable( GL_DEPTH_TEST ); */
+
+   Xrot = Yrot = Zrot = 0.0;
+   Xstep = Step;
+   Ystep = Zstep = 0.0;
+}
+
+
+int main( int argc, char *argv[] )
+{
+    return ui_loop(argc, argv, "spin");
+}
-- 
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