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Diffstat (limited to 'source/blender/imbuf/intern/dds/ColorBlock.h')
-rw-r--r-- | source/blender/imbuf/intern/dds/ColorBlock.h | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/source/blender/imbuf/intern/dds/ColorBlock.h b/source/blender/imbuf/intern/dds/ColorBlock.h new file mode 100644 index 00000000000..eba372768ad --- /dev/null +++ b/source/blender/imbuf/intern/dds/ColorBlock.h @@ -0,0 +1,115 @@ +/** + * $Id$ + * + * ***** BEGIN GPL/BL DUAL LICENSE BLOCK ***** + * + * This program 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. The Blender + * Foundation also sells licenses for use in proprietary software under + * the Blender License. See http://www.blender.org/BL/ for information + * about this. + * + * This program 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 this program; if not, write to the Free Software Foundation, + * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + * Contributors: Amorilia (amorilia@gamebox.net) + * + * ***** END GPL/BL DUAL LICENSE BLOCK ***** + */ + +/* + * This file is based on a similar file from the NVIDIA texture tools + * (http://nvidia-texture-tools.googlecode.com/) + * + * Original license from NVIDIA follows. + */ + +// This code is in the public domain -- castanyo@yahoo.es + +#ifndef _DDS_COLORBLOCK_H +#define _DDS_COLORBLOCK_H + +#include <Color.h> +#include <Image.h> + +/// Uncompressed 4x4 color block. +struct ColorBlock +{ + ColorBlock(); + ColorBlock(const ColorBlock & block); + ColorBlock(const Image * img, unsigned int x, unsigned int y); + + void init(const Image * img, unsigned int x, unsigned int y); + + void swizzleDXT5n(); + void splatX(); + void splatY(); + + unsigned int countUniqueColors() const; + Color32 averageColor() const; + + void diameterRange(Color32 * start, Color32 * end) const; + void luminanceRange(Color32 * start, Color32 * end) const; + void boundsRange(Color32 * start, Color32 * end) const; + void boundsRangeAlpha(Color32 * start, Color32 * end) const; + void bestFitRange(Color32 * start, Color32 * end) const; + + void sortColorsByAbsoluteValue(); + + float volume() const; + + // Accessors + const Color32 * colors() const; + + Color32 color(unsigned int i) const; + Color32 & color(unsigned int i); + + Color32 color(unsigned int x, unsigned int y) const; + Color32 & color(unsigned int x, unsigned int y); + +private: + + Color32 m_color[4*4]; + +}; + + +/// Get pointer to block colors. +inline const Color32 * ColorBlock::colors() const +{ + return m_color; +} + +/// Get block color. +inline Color32 ColorBlock::color(unsigned int i) const +{ + return m_color[i]; +} + +/// Get block color. +inline Color32 & ColorBlock::color(unsigned int i) +{ + return m_color[i]; +} + +/// Get block color. +inline Color32 ColorBlock::color(unsigned int x, unsigned int y) const +{ + return m_color[y * 4 + x]; +} + +/// Get block color. +inline Color32 & ColorBlock::color(unsigned int x, unsigned int y) +{ + return m_color[y * 4 + x]; +} + +#endif // _DDS_COLORBLOCK_H |