1 files changed, 83 insertions, 69 deletions
diff --git a/tests/glfw/triangle.c b/tests/glfw/triangle.c
index a8b737be..db9d9ab1 100644
--- a/tests/glfw/triangle.c
+++ b/tests/glfw/triangle.c
@@ -8,87 +8,101 @@
 #include <stdlib.h>
 #include <GL/glfw.h>
 
+#ifdef EMSCRIPTEN
+#include <emscripten/emscripten.h>
+#endif
 
-int main( void )
+void
+iteration ()
 {
-    int width, height, x;
-    double t;
+  int width, height, x;
+  double t;
+
+  t = glfwGetTime ();
+  glfwGetMousePos (&x, NULL);
+
+  // Get window size (may be different than the requested size)
+  glfwGetWindowSize (&width, &height);
+
+  // Special case: avoid division by zero below
+  height = height > 0 ? height : 1;
+
+  glViewport (0, 0, width, height);
+
+  // Clear color buffer to black
+  glClearColor (0.0f, 0.0f, 0.0f, 0.0f);
+  glClear (GL_COLOR_BUFFER_BIT);
+
+  // Select and setup the projection matrix
+  glMatrixMode (GL_PROJECTION);
+  glLoadIdentity ();
+  gluPerspective (65.0f, (GLfloat) width / (GLfloat) height, 1.0f, 100.0f);
+
+  // Select and setup the modelview matrix
+  glMatrixMode (GL_MODELVIEW);
+  glLoadIdentity ();
+  gluLookAt (0.0f, 1.0f, 0.0f,	// Eye-position
+	     0.0f, 20.0f, 0.0f,	// View-point
+	     0.0f, 0.0f, 1.0f);	// Up-vector
+
+  // Draw a rotating colorful triangle
+  //glTranslatef (0.0f, 14.0f, 0.0f);
+  glTranslatef (0.0f, 1.0f, 0.0f);
+  glRotatef (0.3f * (GLfloat) x + (GLfloat) t * 100.0f, 0.0f, 0.0f, 1.0f);
+  glBegin (GL_TRIANGLES);
+  glColor3f (1.0f, 0.0f, 0.0f);
+  glVertex3f (-5.0f, 0.0f, -4.0f);
+  glColor3f (0.0f, 1.0f, 0.0f);
+  glVertex3f (5.0f, 0.0f, -4.0f);
+  glColor3f (0.0f, 0.0f, 1.0f);
+  glVertex3f (0.0f, 0.0f, 6.0f);
+  glEnd ();
+
+  // Swap buffers
+  glfwSwapBuffers ();
 
-    // Initialise GLFW
-    if( !glfwInit() )
+}
+
+int
+main (void)
+{
+  // Initialise GLFW
+  if (!glfwInit ())
     {
-        fprintf( stderr, "Failed to initialize GLFW\n" );
-        exit( EXIT_FAILURE );
+      fprintf (stderr, "Failed to initialize GLFW\n");
+      exit (EXIT_FAILURE);
     }
 
-    // Open a window and create its OpenGL context
-    if( !glfwOpenWindow( 640, 480, 0,0,0,0, 0,0, GLFW_WINDOW ) )
+  // Open a window and create its OpenGL context
+  if (!glfwOpenWindow (640, 480, 0, 0, 0, 0, 0, 0, GLFW_WINDOW))
     {
-        fprintf( stderr, "Failed to open GLFW window\n" );
+      fprintf (stderr, "Failed to open GLFW window\n");
 
-        glfwTerminate();
-        exit( EXIT_FAILURE );
+      glfwTerminate ();
+      exit (EXIT_FAILURE);
     }
 
-    glfwSetWindowTitle( "Spinning Triangle" );
+  glfwSetWindowTitle ("Spinning Triangle");
 
-    // Ensure we can capture the escape key being pressed below
-    glfwEnable( GLFW_STICKY_KEYS );
+  // Ensure we can capture the escape key being pressed below
+  glfwEnable (GLFW_STICKY_KEYS);
 
-    // Enable vertical sync (on cards that support it)
-    glfwSwapInterval( 1 );
+  // Enable vertical sync (on cards that support it)
+  glfwSwapInterval (1);
 
-    do
+#ifdef EMSCRIPTEN
+  emscripten_set_main_loop (iteration, 0, 1);
+#else
+  do
     {
-        t = glfwGetTime();
-        glfwGetMousePos( &x, NULL );
-
-        // Get window size (may be different than the requested size)
-        glfwGetWindowSize( &width, &height );
-
-        // Special case: avoid division by zero below
-        height = height > 0 ? height : 1;
-
-        glViewport( 0, 0, width, height );
-
-        // Clear color buffer to black
-        glClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
-        glClear( GL_COLOR_BUFFER_BIT );
-
-        // Select and setup the projection matrix
-        glMatrixMode( GL_PROJECTION );
-        glLoadIdentity();
-        gluPerspective( 65.0f, (GLfloat)width/(GLfloat)height, 1.0f, 100.0f );
-
-        // Select and setup the modelview matrix
-        glMatrixMode( GL_MODELVIEW );
-        glLoadIdentity();
-        gluLookAt( 0.0f, 1.0f, 0.0f,    // Eye-position
-                   0.0f, 20.0f, 0.0f,   // View-point
-                   0.0f, 0.0f, 1.0f );  // Up-vector
-
-        // Draw a rotating colorful triangle
-        glTranslatef( 0.0f, 14.0f, 0.0f );
-        glRotatef( 0.3f*(GLfloat)x + (GLfloat)t*100.0f, 0.0f, 0.0f, 1.0f );
-        glBegin( GL_TRIANGLES );
-          glColor3f( 1.0f, 0.0f, 0.0f );
-          glVertex3f( -5.0f, 0.0f, -4.0f );
-          glColor3f( 0.0f, 1.0f, 0.0f );
-          glVertex3f( 5.0f, 0.0f, -4.0f );
-          glColor3f( 0.0f, 0.0f, 1.0f );
-          glVertex3f( 0.0f, 0.0f, 6.0f );
-        glEnd();
-
-        // Swap buffers
-        glfwSwapBuffers();
-
-    } // Check if the ESC key was pressed or the window was closed
-    while( glfwGetKey( GLFW_KEY_ESC ) != GLFW_PRESS &&
-           glfwGetWindowParam( GLFW_OPENED ) );
-
-    // Close OpenGL window and terminate GLFW
-    glfwTerminate();
-
-    exit( EXIT_SUCCESS );
-}
+      iteration ();
+    }				// Check if the ESC key was pressed or the window was closed
+  while (glfwGetKey (GLFW_KEY_ESC) != GLFW_PRESS &&
+	 glfwGetWindowParam (GLFW_OPENED));
+#endif
+
+  // Close OpenGL window and terminate GLFW
+  glfwTerminate ();
 
+  exit (EXIT_SUCCESS);
+}