overlays converted into render primitives

overviewer_core/src/primitives/overlay.h

@@ -0,0 +1,32 @@
+/* 
+ * This file is part of the Minecraft Overviewer.
+ *
+ * Minecraft Overviewer 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.
+ *
+ * Minecraft Overviewer 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 the Overviewer.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "../overviewer.h"
+
+typedef struct {
+    /* top facemask and white color image, for drawing overlays */
+    PyObject *facemask_top, *white_color;
+    /* can be overridden in derived classes to control
+       overlay alpha and color
+       last four vars are r, g, b, a out */
+    void (*get_color)(void *, RenderState *,
+                      unsigned char *, unsigned char *, unsigned char *, unsigned char *);
+} RenderPrimitiveOverlay;
+extern RenderPrimitiveInterface primitive_overlay;
+
+void overlay_draw(void *data, RenderState *state, PyObject *src, PyObject *mask, PyObject *mask_light);
+int overlay_occluded(void *data, RenderState *state, int x, int y, int z);