Second Life viewer sources 1.13.2.12

1 files changed, 210 insertions, 0 deletions

diff --git a/linden/indra/newview/llviewertextureanim.cpp b/linden/indra/newview/llviewertextureanim.cpp
new file mode 100644
index 0000000..0766b83
--- /dev/null
+++ b/linden/indra/newview/llviewertextureanim.cpp
@@ -0,0 +1,210 @@
+/** 
+ * @file llviewertextureanim.cpp
+ * @brief LLViewerTextureAnim class implementation
+ *
+ * Copyright (c) 2003-2007, Linden Research, Inc.
+ * 
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlife.com/developers/opensource/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at http://secondlife.com/developers/opensource/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ */
+
+#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;
+}