Re-add GL test case.

2 files changed, 131 insertions, 1 deletions

diff --git a/tests/libdimension/Makefile.am b/tests/libdimension/Makefile.am
index b0f4476..07a4b8d 100644
--- a/tests/libdimension/Makefile.am
+++ b/tests/libdimension/Makefile.am
@@ -23,7 +23,8 @@ check_LTLIBRARIES = libdimension-tests.la
 check_PROGRAMS    = error-test                                                 \
                     warning-test                                               \
                     kD_splay_tree-test                                         \
-                    png-test
+                    png-test                                                   \
+                    gl-test
 TESTS             = $(check_PROGRAMS)
 XFAIL_TESTS       = error-test
 
@@ -41,3 +42,6 @@ kD_splay_tree_test_LDADD   = libdimension-tests.la
 
 png_test_SOURCES = png.c
 png_test_LDADD   = libdimension-tests.la
+
+gl_test_SOURCES = gl.c
+gl_test_LDADD   = libdimension-tests.la
diff --git a/tests/libdimension/gl.c b/tests/libdimension/gl.c
new file mode 100644
index 0000000..8b999af
--- /dev/null
+++ b/tests/libdimension/gl.c
@@ -0,0 +1,126 @@
+/*************************************************************************
+ * Copyright (C) 2009 Tavian Barnes <tavianator@gmail.com>               *
+ *                                                                       *
+ * This file is part of The Dimension Test Suite.                        *
+ *                                                                       *
+ * The Dimension Test Suite is free software; you can redistribute it    *
+ * and/or modify it under the terms of the GNU General Public License as *
+ * published by the Free Software Foundation; either version 3 of the    *
+ * License, or (at your option) any later version.                       *
+ *                                                                       *
+ * The Dimension Test Suite is distributed in the hope that it will be   *
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty   *
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  *
+ * General Public License for more details.                              *
+ *                                                                       *
+ * You should have received a copy of the GNU General Public License     *
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>. *
+ *************************************************************************/
+
+#include "tests.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+int
+main() {
+  dmnsn_display *display;
+  dmnsn_progress *progress, *barprogress;
+  dmnsn_scene *scene;
+  dmnsn_canvas *canvas;
+
+  /* Set the resilience low for tests */
+  dmnsn_set_resilience(DMNSN_SEVERITY_LOW);
+
+  /* Create the default test scene */
+  scene = dmnsn_new_default_scene();
+  if (!scene) {
+    fprintf(stderr, "--- Couldn't create default scene! ---\n");
+    return EXIT_FAILURE;
+  }
+
+  /* Optimize the canvas for GL drawing */
+  if (dmnsn_gl_optimize_canvas(scene->canvas) != 0) {
+    dmnsn_delete_default_scene(scene);
+    fprintf(stderr, "--- Couldn't optimize canvas for GL! ---\n");
+    return EXIT_FAILURE;
+  }
+
+  /* Create a new glX display */
+  display = dmnsn_new_display(scene->canvas);
+  if (!display) {
+    dmnsn_delete_default_scene(scene);
+    fprintf(stderr, "--- Couldn't initialize X or glX! ---\n");
+    return EXIT_FAILURE;
+  }
+
+  /* Render the scene */
+
+  progress = dmnsn_raytrace_scene_async(scene);
+  if (!progress) {
+    dmnsn_delete_display(display);
+    dmnsn_delete_default_scene(scene);
+    fprintf(stderr, "--- Couldn't start raytracing worker thread! ---\n");
+    return EXIT_FAILURE;
+  }
+
+  barprogress = dmnsn_progressbar_async("Raytracing scene: ", progress);
+
+  /* Display the scene as it's rendered */
+  while (dmnsn_get_progress(progress) < 1.0) {
+    if (dmnsn_gl_write_canvas(scene->canvas) != 0) {
+      dmnsn_delete_display(display);
+      dmnsn_delete_default_scene(scene);
+      fprintf(stderr, "--- Drawing to openGL failed! ---\n");
+      return EXIT_FAILURE;
+    }
+    dmnsn_display_flush(display);
+  }
+
+  dmnsn_finish_progress(barprogress);
+
+  if (dmnsn_finish_progress(progress) != 0) {
+    dmnsn_delete_display(display);
+    dmnsn_delete_default_scene(scene);
+    fprintf(stderr, "--- Raytracing failed! ---\n");
+    return EXIT_FAILURE;
+  }
+
+  /* Make sure we show the completed rendering */
+  if (dmnsn_gl_write_canvas(scene->canvas) != 0) {
+    dmnsn_delete_display(display);
+    dmnsn_delete_default_scene(scene);
+    fprintf(stderr, "--- Drawing to openGL failed! ---\n");
+    return EXIT_FAILURE;
+  }
+  dmnsn_display_flush(display);
+
+  /* Show the image on screen for a bit */
+  sleep(1);
+
+  /* Read a canvas from the GL buffer */
+  canvas = dmnsn_gl_read_canvas(0, 0, scene->canvas->x, scene->canvas->y);
+  if (!canvas) {
+    dmnsn_delete_display(display);
+    dmnsn_delete_default_scene(scene);
+    fprintf(stderr, "--- Reading canvas from GL buffer failed! ---\n");
+    return EXIT_FAILURE;
+  }
+
+  /* And write it back */
+  if (dmnsn_gl_write_canvas(canvas) != 0) {
+    dmnsn_delete_canvas(canvas);
+    dmnsn_delete_display(display);
+    dmnsn_delete_default_scene(scene);
+    fprintf(stderr, "--- Drawing to openGL failed! ---\n");
+    return EXIT_FAILURE;
+  }
+  dmnsn_display_flush(display);
+
+  /* Show the image on screen for a bit */
+  sleep(1);
+
+  dmnsn_delete_canvas(canvas);
+  dmnsn_delete_display(display);
+  dmnsn_delete_default_scene(scene);
+  return EXIT_SUCCESS;
+}