added 3dengfx into the repo, probably not the correct version for this

[summerhack] / src / 3dengfx / src / 3dengfx / textures.hpp

diff --git a/src/3dengfx/src/3dengfx/textures.hpp b/src/3dengfx/src/3dengfx/textures.hpp
new file mode 100644 (file)
index 0000000..3923f86
--- /dev/null
+++ b/src/3dengfx/src/3dengfx/textures.hpp
@@ -0,0 +1,67 @@
+/*
+Copyright 2004 John Tsiombikas <nuclear@siggraph.org>
+
+This file is part of the 3dengfx, realtime visualization system.
+
+3dengfx 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 2 of the License, or
+(at your option) any later version.
+
+3dengfx 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 3dengfx; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+#ifndef _TEXTURES_HPP_
+#define _TEXTURES_HPP_
+
+#include <vector>
+#include "gfx/pbuffer.hpp"
+#include "3denginefx_types.hpp"
+
+/* ---- Texture class ----
+** it does NOT hold the actual pixel data, if we need access to
+** the pixels we have to call lock() then the data are retrieved from
+** OpenGL, and unlock() updates the OpenGL texture from our modified
+** pixel data in pbuf.
+** if we wish to just set some pixel data without first retrieving the
+** actual data from OpenGL, we can use the function set_pixel_data() with a
+** new PixelBuffer as argument (this is copied, not referenced)
+*/
+class Texture : public PixelBuffer {
+private:
+       // for animated textures this will hold all the tex_ids of the frames
+       std::vector<unsigned int> frame_tex_id;
+       unsigned int active_frame;
+
+       TextureDim type;
+
+public:
+       unsigned int tex_id;    /* OpenGL texture id 
+                                                        * (for animated textures this is the active tex_id)
+                                                        */
+
+       Texture(int x = -1, int y = -1, TextureDim type = TEX_2D);
+       Texture(int x, TextureDim type = TEX_1D);
+       ~Texture();
+
+       void add_frame();
+       void add_frame(const PixelBuffer &pbuf);
+       
+       void set_active_frame(unsigned int frame);
+       unsigned int get_active_frame() const;
+       
+       void lock(CubeMapFace cube_map_face = CUBE_MAP_PX);             // get a valid pixel pointer
+       void unlock(CubeMapFace cube_map_face = CUBE_MAP_PX);   // update system data & invalidate pointer
+       
+       void set_pixel_data(const PixelBuffer &pbuf, CubeMapFace cube_map_face = CUBE_MAP_PX);
+
+       TextureDim get_type() const;
+};
+
+#endif // _TEXTURES_HPP_