Modularize the libdimension codebase.

1 files changed, 68 insertions, 0 deletions

diff --git a/libdimension/model/texture.c b/libdimension/model/texture.c
new file mode 100644
index 0000000..b7eb7ef
--- /dev/null
+++ b/libdimension/model/texture.c
@@ -0,0 +1,68 @@
+/*************************************************************************
+ * 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
+ * Textures.
+ */
+
+#include "dimension/model.h"
+
+dmnsn_texture *
+dmnsn_new_texture(dmnsn_pool *pool)
+{
+  dmnsn_texture *texture = DMNSN_PALLOC(pool, dmnsn_texture);
+  texture->pigment = NULL;
+  texture->finish = dmnsn_new_finish();
+  texture->trans = dmnsn_identity_matrix();
+  texture->initialized = false;
+  return texture;
+}
+
+void
+dmnsn_texture_initialize(dmnsn_texture *texture)
+{
+  dmnsn_assert(!texture->initialized, "Texture double-initialized.");
+  texture->initialized = true;
+
+  texture->trans_inv = dmnsn_matrix_inverse(texture->trans);
+
+  if (!texture->pigment->initialized) {
+    texture->pigment->trans = dmnsn_matrix_mul(texture->trans,
+                                               texture->pigment->trans);
+    dmnsn_pigment_initialize(texture->pigment);
+  }
+}
+
+void
+dmnsn_texture_cascade(dmnsn_texture *default_texture, dmnsn_texture **texturep)
+{
+  if (!*texturep) {
+    *texturep = default_texture;
+  }
+
+  dmnsn_texture *texture = *texturep;
+
+  if (!texture->pigment) {
+    texture->pigment = default_texture->pigment;
+  }
+
+  dmnsn_finish_cascade(&default_texture->finish, &texture->finish);
+}