Print done when done.

1 files changed, 191 insertions, 0 deletions

diff --git a/indra/newview/llviewertextureanim.cpp b/indra/newview/llviewertextureanim.cpp
new file mode 100644
index 0000000000..b40320ad2d
--- /dev/null
+++ b/indra/newview/llviewertextureanim.cpp
@@ -0,0 +1,191 @@
+/** 
+ * @file llviewertextureanim.cpp
+ * @brief LLViewerTextureAnim class implementation
+ *
+ * Copyright (c) 2003-$CurrentYear$, Linden Research, Inc.
+ * $License$
+ */
+
+#include "llviewerprecompiledheaders.h"
+
+#include "llviewertextureanim.h"
+
+#include "llmath.h"
+#include "llerror.h"
+
+LLViewerTextureAnim::LLViewerTextureAnim() : LLTextureAnim()
+{
+	mLastFrame = -1.f;	// Force an update initially
+	mLastTime = 0.f;
+}
+
+LLViewerTextureAnim::~LLViewerTextureAnim()
+{
+}
+
+void LLViewerTextureAnim::reset()
+{
+	LLTextureAnim::reset();
+	mTimer.reset();
+}
+
+
+S32 LLViewerTextureAnim::animateTextures(F32 &off_s, F32 &off_t,
+										F32 &scale_s, F32 &scale_t,
+										F32 &rot)
+{
+	S32 result = 0;
+	if (!(mMode & ON))
+	{
+		mLastTime = 0.f;
+		mLastFrame = -1.f;
+		return result;
+	}
+
+
+	F32 num_frames = 1.0;
+	F32 full_length = 1.0;
+
+	if (mLength)
+	{
+		num_frames = mLength;
+	}
+	else
+	{
+		num_frames = llmax(1.f, (F32)(mSizeX * mSizeY));
+	}
+
+	if (mMode & PING_PONG)
+	{
+		if (mMode & SMOOTH)
+		{
+			full_length = 2.f*num_frames;
+		}
+		else if (mMode & LOOP)
+		{
+			full_length = 2.f*num_frames - 2.f;
+			full_length = llmax(1.f, full_length);
+		}
+		else
+		{
+			full_length = 2.f*num_frames - 1.f;
+			full_length = llmax(1.f, full_length);
+		}
+	}
+	else
+	{
+		full_length = num_frames;
+	}
+
+
+	F32 frame_counter;
+	if (mMode & SMOOTH)
+	{
+		frame_counter = mTimer.getElapsedTimeAndResetF32() * mRate + (F32)mLastTime;
+	}
+	else
+	{
+		frame_counter = mTimer.getElapsedTimeF32() * mRate;
+	}
+	mLastTime = frame_counter;
+
+	if (mMode & LOOP)
+	{
+		frame_counter  = fmod(frame_counter, full_length);
+	}
+	else
+	{
+		frame_counter = llmin(full_length - 1.f, frame_counter);
+	}
+
+	if (!(mMode & SMOOTH))
+	{
+		frame_counter = (F32)llfloor(frame_counter + 0.01f);
+	}
+
+	if (mMode & PING_PONG)
+	{
+		if (frame_counter >= num_frames)
+		{
+			if (mMode & SMOOTH)
+			{
+				frame_counter = num_frames - (frame_counter - num_frames);
+			}
+			else
+			{
+				frame_counter = (num_frames - 1.99f) - (frame_counter - num_frames);
+			}
+		}
+	}
+
+	if (mMode & REVERSE)
+	{
+		if (mMode & SMOOTH)
+		{
+			frame_counter = num_frames - frame_counter;
+		}
+		else
+		{
+			frame_counter = (num_frames - 0.99f) - frame_counter;
+		}
+	}
+
+	frame_counter += mStart;
+
+	if (!(mMode & SMOOTH))
+	{
+		frame_counter = (F32)llround(frame_counter);
+	}
+
+	//
+	// Now that we've calculated the frame time, do an update.
+	// Will we correctly update stuff if the texture anim has
+	// changed, but not the frame counter?
+	//
+	if (mLastFrame != frame_counter)
+	{
+		mLastFrame = frame_counter;
+		if (mMode & ROTATE)
+		{
+			result |= ROTATE;
+			rot = frame_counter;
+		}
+		else if (mMode & SCALE)
+		{
+			result |= SCALE;
+			scale_s = frame_counter;
+			scale_t = frame_counter;
+		}
+		else
+		{
+			result |= TRANSLATE;
+			F32 x_frame;
+			S32 y_frame;
+			F32 x_pos;
+			F32 y_pos;
+
+			if (  (mSizeX)
+				&&(mSizeY))
+			{
+				result |= SCALE;
+				scale_s = 1.f/mSizeX;
+				scale_t = 1.f/mSizeY;
+				x_frame = fmod(frame_counter, mSizeX);
+				y_frame = (S32)(frame_counter / mSizeX);
+				x_pos = x_frame * scale_s;
+				y_pos = y_frame * scale_t;
+				off_s = (-0.5f + 0.5f*scale_s)+ x_pos;
+				off_t = (0.5f - 0.5f*scale_t) - y_pos;
+			}
+			else
+			{
+				scale_s = 1.f;
+				scale_t = 1.f;
+				x_pos = frame_counter * scale_s;
+				off_s = (-0.5f + 0.5f*scale_s)+ x_pos;
+				off_t = 0.f;
+			}
+		}
+	}
+	return result;
+}