Modularize the libdimension codebase.

1 files changed, 79 insertions, 0 deletions

diff --git a/libdimension/model/scene.c b/libdimension/model/scene.c
new file mode 100644
index 0000000..875c376
--- /dev/null
+++ b/libdimension/model/scene.c
@@ -0,0 +1,79 @@
+/*************************************************************************
+ * Copyright (C) 2009-2014 Tavian Barnes <tavianator@tavianator.com>     *
+ *                                                                       *
+ * This file is part of The Dimension Library.                           *
+ *                                                                       *
+ * The Dimension Library is free software; you can redistribute it and/  *
+ * or modify it under the terms of the GNU Lesser 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 Library 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  *
+ * Lesser General Public License for more details.                       *
+ *                                                                       *
+ * You should have received a copy of the GNU Lesser General Public      *
+ * License along with this program.  If not, see                         *
+ * <http://www.gnu.org/licenses/>.                                       *
+ *************************************************************************/
+
+/**
+ * @file
+ * Scenes.
+ */
+
+#include "internal.h"
+#include "internal/platform.h"
+#include "dimension/model.h"
+#include <stdlib.h>
+
+// Allocate an empty scene
+dmnsn_scene *
+dmnsn_new_scene(dmnsn_pool *pool)
+{
+  dmnsn_scene *scene = DMNSN_PALLOC(pool, dmnsn_scene);
+
+  scene->background       = NULL;
+  scene->default_texture  = dmnsn_new_texture(pool);
+  scene->default_interior = dmnsn_new_interior(pool);
+  scene->canvas           = NULL;
+  scene->region_x         = 0;
+  scene->region_y         = 0;
+  scene->outer_width      = 0;
+  scene->outer_height     = 0;
+  scene->objects          = DMNSN_PALLOC_ARRAY(pool, dmnsn_object *);
+  scene->lights           = DMNSN_PALLOC_ARRAY(pool, dmnsn_light *);
+  scene->camera           = NULL;
+  scene->quality          = DMNSN_RENDER_FULL;
+  scene->reclimit         = 5;
+  scene->adc_bailout      = 1.0/255.0;
+  scene->nthreads         = dmnsn_ncpus();
+  scene->initialized      = false;
+
+  return scene;
+}
+
+void
+dmnsn_scene_initialize(dmnsn_scene *scene)
+{
+  dmnsn_assert(!scene->initialized, "Scene double-initialized.");
+  scene->initialized = true;
+
+  if (scene->outer_width == 0) {
+    scene->outer_width = scene->canvas->width;
+  }
+  if (scene->outer_height == 0) {
+    scene->outer_height = scene->canvas->height;
+  }
+
+  dmnsn_pigment_initialize(scene->background);
+
+  dmnsn_texture_initialize(scene->default_texture);
+
+  DMNSN_ARRAY_FOREACH (dmnsn_object **, object, scene->objects) {
+    dmnsn_texture_cascade(scene->default_texture, &(*object)->texture);
+    dmnsn_interior_cascade(scene->default_interior, &(*object)->interior);
+    dmnsn_object_precompute(*object);
+  }
+}