This commit is a modified version of patch #6860

It adds read only dds support.  (Writing will come later)

Kent

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