reprap: c3 update etc

[simavr] / examples / shared / libc3 / src / c3context.h

diff --git a/examples/shared/libc3/src/c3context.h b/examples/shared/libc3/src/c3context.h
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+/*
+       c3context.h
+
+       Copyright 2008-2012 Michel Pollet <buserror@gmail.com>
+
+       This file is part of simavr.
+
+       simavr 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.
+
+       simavr 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 simavr.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#ifndef __C3CONTEXT_H___
+#define __C3CONTEXT_H___
+
+#include "c3algebra.h"
+#include "c3geometry.h"
+#include "c3pixels.h"
+#include "c3camera.h"
+
+//! c3context_t is a container for a 'scene' to be drawn
+/*!
+ * A c3context_t holds a root object, a list of already cached projected
+ * version of the geometry, and a driver that can be customized to draw it.
+ *
+ * This is a wrapper around a "top level object", the list of projected
+ * geometries is kept, purged and resorted if the root object becomes
+ * dirty
+ * TODO: Add the camera/eye/arcball control there
+ */
+typedef struct c3context_t {
+       c3vec2          size;
+       c3cam           cam;
+
+       struct c3object_t * root;       // root object
+       c3pixels_array_t        pixels; // pixels, textures...
+
+       c3geometry_array_t      projected;
+
+       const struct c3driver_context_t ** driver;
+} c3context_t, *c3context_p;
+
+//! Allocates a new context of size w=width, h=height
+c3context_p
+c3context_new(
+               int w,
+               int h);
+
+//! Initializes a new context 'c' of size w=width, h=height
+c3context_p
+c3context_init(
+               c3context_p c,
+               int w,
+               int h);
+
+//! Disposes the context, and everything underneath
+void
+c3context_dispose(
+               c3context_p c);
+
+//! Reproject geometry for dirty objects
+void
+c3context_project(
+               c3context_p c);
+//! Draws the context
+void
+c3context_draw(
+               c3context_p c);
+
+#endif /* __C3CONTEXT_H___ */