mirror of
https://github.com/genodelabs/genode.git
synced 2024-12-23 15:32:25 +00:00
259b127f96
This patch adds two new painters located at gems/include/polygon_gfx. Both painters draw convex polygons with an arbirary number of points. The shaded-polygon painter interpolates the color and alpha values whereas the textured-polygon painter applies a texture to the polygon. The painters are accompanied by simplistic 3D routines located at gems/include/nano3d/ and a corresponding example (gems/run/nano3d.run).
70 lines
1.6 KiB
C++
70 lines
1.6 KiB
C++
/*
|
|
* \brief Cube 3D object
|
|
* \author Norman Feske
|
|
* \date 2015-06-19
|
|
*/
|
|
|
|
/*
|
|
* Copyright (C) 2015 Genode Labs GmbH
|
|
*
|
|
* This file is part of the Genode OS framework, which is distributed
|
|
* under the terms of the GNU General Public License version 2.
|
|
*/
|
|
|
|
#ifndef _INCLUDE__NANO3D__CUBE_SHAPE_H_
|
|
#define _INCLUDE__NANO3D__CUBE_SHAPE_H_
|
|
|
|
#include <nano3d/vertex_array.h>
|
|
|
|
namespace Nano3d { class Cube_shape; }
|
|
|
|
|
|
class Nano3d::Cube_shape
|
|
{
|
|
private:
|
|
|
|
enum { NUM_VERTICES = 8, NUM_FACES = 6 };
|
|
|
|
typedef Nano3d::Vertex_array<NUM_VERTICES> Vertex_array;
|
|
|
|
Vertex_array _vertices;
|
|
|
|
enum { VERTICES_PER_FACE = 4 };
|
|
|
|
typedef unsigned Face[VERTICES_PER_FACE];
|
|
|
|
Face _faces[NUM_FACES] { { 0, 1, 3, 2 },
|
|
{ 6, 7, 5, 4 },
|
|
{ 1, 0, 4, 5 },
|
|
{ 3, 1, 5, 7 },
|
|
{ 2, 3, 7, 6 },
|
|
{ 0, 2, 6, 4 } };
|
|
|
|
public:
|
|
|
|
Cube_shape(int size)
|
|
{
|
|
for (unsigned i = 0; i < NUM_VERTICES; i++)
|
|
_vertices[i] = Nano3d::Vertex((i&1) ? size : -size,
|
|
(i&2) ? size : -size,
|
|
(i&4) ? size : -size);
|
|
}
|
|
|
|
Vertex_array const &vertex_array() const { return _vertices; }
|
|
|
|
/**
|
|
* Call functor 'fn' for each face of the object
|
|
*
|
|
* The functor is called with an array of 'unsigned' vertex indices
|
|
* and the number of indices as arguments.
|
|
*/
|
|
template <typename FN>
|
|
void for_each_face(FN const &fn) const
|
|
{
|
|
for (unsigned i = 0; i < NUM_FACES; i++)
|
|
fn(_faces[i], VERTICES_PER_FACE);
|
|
}
|
|
};
|
|
|
|
#endif /* _INCLUDE__NANO3D__CUBE_SHAPE_H_ */
|