Only render in one combined `render' test.

GL and PNG tests now only test import/export.

1 files changed, 131 insertions, 0 deletions

diff --git a/tests/libdimension/render.c b/tests/libdimension/render.c
new file mode 100644
index 0000000..5059778
--- /dev/null
+++ b/tests/libdimension/render.c
@@ -0,0 +1,131 @@
+/*************************************************************************
+ * Copyright (C) 2010 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 <errno.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+int
+main() {
+  bool have_png = true, have_gl = true;
+
+  /* Set the resilience low for tests */
+  dmnsn_set_resilience(DMNSN_SEVERITY_LOW);
+
+  /* Create the default test scene */
+  dmnsn_scene *scene = dmnsn_new_default_scene();
+
+  /* Optimize the canvas for PNG export */
+  errno = 0;
+  if (dmnsn_png_optimize_canvas(scene->canvas) != 0) {
+    if (errno == ENOTSUP) {
+      have_png = false;
+    } else {
+      dmnsn_delete_scene(scene);
+      fprintf(stderr, "--- Couldn't optimize canvas for PNG! ---\n");
+      return EXIT_FAILURE;
+    }
+  }
+
+  /* Optimize the canvas for GL drawing */
+  errno = 0;
+  if (dmnsn_gl_optimize_canvas(scene->canvas) != 0) {
+    if (errno == ENOTSUP) {
+      have_gl = false;
+    } else {
+      dmnsn_delete_scene(scene);
+      fprintf(stderr, "--- Couldn't optimize canvas for GL! ---\n");
+      return EXIT_FAILURE;
+    }
+  }
+
+  dmnsn_clear_canvas(scene->canvas, dmnsn_black);
+
+  /* Create a new glX display */
+  dmnsn_display *display = NULL;
+  if (have_gl) {
+    display = dmnsn_new_display(scene->canvas);
+    if (!display) {
+      fprintf(stderr, "--- WARNING: Couldn't initialize X or glX! ---\n");
+    }
+  }
+
+  /* Render the scene */
+
+  printf("Rendering scene\n");
+  dmnsn_progress *progress = dmnsn_raytrace_scene_async(scene);
+
+  /* Display the scene as it's rendered */
+  if (display) {
+    while (dmnsn_get_progress(progress) < 1.0) {
+      if (dmnsn_gl_write_canvas(scene->canvas) != 0) {
+        dmnsn_delete_display(display);
+        dmnsn_delete_scene(scene);
+        fprintf(stderr, "--- Drawing to OpenGL failed! ---\n");
+        return EXIT_FAILURE;
+      }
+      dmnsn_display_flush(display);
+    }
+  }
+
+  if (dmnsn_finish_progress(progress) != 0) {
+    dmnsn_delete_display(display);
+    dmnsn_delete_scene(scene);
+    fprintf(stderr, "--- Raytracing failed! ---\n");
+    return EXIT_FAILURE;
+  }
+
+  /* Make sure we show the completed rendering */
+  if (display) {
+    printf("Drawing to OpenGL\n");
+    if (dmnsn_gl_write_canvas(scene->canvas) != 0) {
+      dmnsn_delete_display(display);
+      dmnsn_delete_scene(scene);
+      fprintf(stderr, "--- Drawing to OpenGL failed! ---\n");
+      return EXIT_FAILURE;
+    }
+    dmnsn_display_flush(display);
+  }
+
+  if (have_png) {
+    printf("Writing scene to PNG\n");
+    FILE *ofile = fopen("render.png", "wb");
+    if (!ofile) {
+      dmnsn_delete_display(display);
+      dmnsn_delete_scene(scene);
+      fprintf(stderr, "--- Couldn't open 'render.png' for writing! ---\n");
+      return EXIT_FAILURE;
+    }
+
+    if (dmnsn_png_write_canvas(scene->canvas, ofile) != 0) {
+      fclose(ofile);
+      dmnsn_delete_display(display);
+      dmnsn_delete_scene(scene);
+      fprintf(stderr, "--- Writing canvas to PNG failed! ---\n");
+      return EXIT_FAILURE;
+    }
+
+    fclose(ofile);
+  }
+
+  dmnsn_delete_display(display);
+  dmnsn_delete_scene(scene);
+  return EXIT_SUCCESS;
+}