3D Physics Rework, Other Stuff

-=-=-=-=-=-=-=-=-=-=-=-=-=-

3D Physics:
-Fixed "Bounce" parameter in 3D
-Fixed bug affecting Area (sometims it would not detect properly)
-Vehicle Body has seen heavy work
-Added Query API for doing space queries in 3D. Needs some docs though.
-Added JOINTS! Adapted Bullet Joints: and created easy gizmos for setting them up:
   -PinJoint
   -HingeJoint (with motor)
   -SliderJoint
   -ConeTwistJoint
   -Generic6DOFJoint
-Added OBJECT PICKING! based on the new query API. Any physics object now (Area or Body) has the following signals and virtual functions:
    -input_event (mouse or multitouch input over the body)
    -mouse_enter (mouse entered the body area)
    -mouse_exit (mouse exited body area)
   For Area it needs to be activated manually, as it isn't by default (ray goes thru).

Other:

-Begun working on Windows 8 (RT) port. Compiles but does not work yet.
-Added TheoraPlayer library for improved to-texture and portable video support.
-Fixed a few bugs in the renderer, collada importer, collada exporter, etc.

1 files changed, 39 insertions, 0 deletions

diff --git a/drivers/theoraplayer/src/YUV/yuv_util.c b/drivers/theoraplayer/src/YUV/yuv_util.c
new file mode 100644
index 0000000000..f5bf3e5f9e
--- /dev/null
+++ b/drivers/theoraplayer/src/YUV/yuv_util.c
@@ -0,0 +1,39 @@
+/************************************************************************************
+This source file is part of the Theora Video Playback Library
+For latest info, see http://libtheoraplayer.googlecode.com
+*************************************************************************************
+Copyright (c) 2008-2014 Kresimir Spes (kspes@cateia.com)
+This program is free software; you can redistribute it and/or modify it under
+the terms of the BSD license: http://opensource.org/licenses/BSD-3-Clause
+*************************************************************************************/
+#include "yuv_util.h"
+
+struct TheoraPixelTransform* incOut(struct TheoraPixelTransform* t, int n)
+{
+	// used for XRGB, XBGR and similar
+	t->out += n;
+	return t;
+}
+
+void _decodeAlpha(struct TheoraPixelTransform* t, int stride)
+{
+	int width = t->w;
+	unsigned char *ySrc, *yLineEnd, *out;
+	int luma;
+	unsigned int y;
+	for (y = 0; y < t->h; y++)
+	{
+		ySrc = t->y + y * t->yStride + width;
+		out = t->out + y * stride;
+		
+		for (yLineEnd = ySrc + width; ySrc != yLineEnd; ++ySrc, out += 4)
+		{
+			luma = (*ySrc);
+            // because in YCbCr specification, luma values are in the range of [16, 235]
+            // account for 'footroom' and 'headroom' ranges while using luma values as alpha channel
+            if (luma <= 16)       *out = 0;
+            else if (luma >= 235) *out = 255;
+            else                  *out = (unsigned char) (((luma - 16) * 255) / 219);
+		}
+	}
+}