summaryrefslogtreecommitdiff
path: root/indra/newview/llviewerjointattachment.cpp
blob: 0a2e328015e7d885a7537ea0db465a9708a6db5b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
/** 
 * @file llviewerjointattachment.cpp
 * @brief Implementation of LLViewerJointAttachment class
 *
 * $LicenseInfo:firstyear=2002&license=viewergpl$
 * 
 * Copyright (c) 2002-2007, Linden Research, Inc.
 * 
 * Second Life Viewer Source Code
 * 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.
 * $/LicenseInfo$
 */

#include "llviewerprecompiledheaders.h"

#include "llviewerjointattachment.h"

#include "llagentconstants.h"

#include "llviewercontrol.h"
#include "lldrawable.h"
#include "llgl.h"
#include "llrender.h"
#include "llvoavatar.h"
#include "llvolume.h"
#include "pipeline.h"
#include "llspatialpartition.h"
#include "llinventorymodel.h"
#include "llviewerobjectlist.h"
#include "llface.h"
#include "llvoavatar.h"

#include "llglheaders.h"

extern LLPipeline gPipeline;

//-----------------------------------------------------------------------------
// LLViewerJointAttachment()
//-----------------------------------------------------------------------------
LLViewerJointAttachment::LLViewerJointAttachment() :
mAttachedObject(NULL),
mVisibleInFirst(FALSE),
mGroup(0),
mIsHUDAttachment(FALSE),
mPieSlice(-1)
{
	mValid = FALSE;
	mUpdateXform = FALSE;
}

//-----------------------------------------------------------------------------
// ~LLViewerJointAttachment()
//-----------------------------------------------------------------------------
LLViewerJointAttachment::~LLViewerJointAttachment()
{
}

//-----------------------------------------------------------------------------
// isTransparent()
//-----------------------------------------------------------------------------
BOOL LLViewerJointAttachment::isTransparent()
{
	return FALSE;
}

//-----------------------------------------------------------------------------
// drawShape()
//-----------------------------------------------------------------------------
U32 LLViewerJointAttachment::drawShape( F32 pixelArea, BOOL first_pass )
{
	if (LLVOAvatar::sShowAttachmentPoints)
	{
		LLGLDisable cull_face(GL_CULL_FACE);
		
		gGL.color4f(1.f, 1.f, 1.f, 1.f);
		gGL.begin(LLVertexBuffer::QUADS);
		{
			gGL.vertex3f(-0.1f, 0.1f, 0.f);
			gGL.vertex3f(-0.1f, -0.1f, 0.f);
			gGL.vertex3f(0.1f, -0.1f, 0.f);
			gGL.vertex3f(0.1f, 0.1f, 0.f);
		}gGL.end();
	}
	return 0;
}

void LLViewerJointAttachment::setupDrawable(LLDrawable* drawablep)
{
	drawablep->mXform.setParent(&mXform); // LLViewerJointAttachment::lazyAttach
	drawablep->makeActive();
	LLVector3 current_pos = mAttachedObject->getRenderPosition();
	LLQuaternion current_rot = mAttachedObject->getRenderRotation();
	LLQuaternion attachment_pt_inv_rot = ~getWorldRotation();

	current_pos -= getWorldPosition();
	current_pos.rotVec(attachment_pt_inv_rot);

	current_rot = current_rot * attachment_pt_inv_rot;

	drawablep->mXform.setPosition(current_pos);
	drawablep->mXform.setRotation(current_rot);
	gPipeline.markMoved(drawablep);
	gPipeline.markTextured(drawablep); // face may need to change draw pool to/from POOL_HUD
	drawablep->setState(LLDrawable::USE_BACKLIGHT);
	
	if(mIsHUDAttachment)
	{
		for (S32 face_num = 0; face_num < drawablep->getNumFaces(); face_num++)
		{
			drawablep->getFace(face_num)->setState(LLFace::HUD_RENDER);
		}
	}

	for (LLViewerObject::child_list_t::iterator iter = mAttachedObject->mChildList.begin();
		 iter != mAttachedObject->mChildList.end(); ++iter)
	{
		LLViewerObject* childp = *iter;
		if (childp && childp->mDrawable.notNull())
		{
			childp->mDrawable->setState(LLDrawable::USE_BACKLIGHT);
			gPipeline.markTextured(childp->mDrawable); // face may need to change draw pool to/from POOL_HUD
			if(mIsHUDAttachment)
			{
				for (S32 face_num = 0; face_num < childp->mDrawable->getNumFaces(); face_num++)
				{
					childp->mDrawable->getFace(face_num)->setState(LLFace::HUD_RENDER);
				}
			}
		}
	}
}

//-----------------------------------------------------------------------------
// addObject()
//-----------------------------------------------------------------------------
BOOL LLViewerJointAttachment::addObject(LLViewerObject* object)
{
	if (mAttachedObject)
	{
		llwarns << "Attempted to attach object where an attachment already exists!" << llendl;
		
		if (mAttachedObject == object) {
			llinfos << "(same object re-attached)" << llendl;
			removeObject(mAttachedObject);
			// Pass through anyway to let setupDrawable()
			// re-connect object to the joint correctly
		}
		else {
			llinfos << "(objects differ, removing existing object)" << llendl;
			// Rather hacky, but no-one can think of something
			// better to do for this case.
			gObjectList.killObject(mAttachedObject);
			// Proceed with new object attachment
		}
	}
	mAttachedObject = object;
	
	LLUUID item_id;

	// Find the inventory item ID of the attached object
	LLNameValue* item_id_nv = object->getNVPair("AttachItemID");
	if( item_id_nv )
	{
		const char* s = item_id_nv->getString();
		if( s )
		{
			item_id.set( s );
			lldebugs << "getNVPair( AttachItemID ) = " << item_id << llendl;
		}
	}

	mItemID = item_id;

	LLDrawable* drawablep = object->mDrawable;

	if (drawablep)
	{
		//if object is active, make it static
		if(drawablep->isActive())
		{
			drawablep->makeStatic(FALSE) ;
		}

		setupDrawable(drawablep);
	}

	if (mIsHUDAttachment)
	{
		if (object->mText.notNull())
		{
			object->mText->setOnHUDAttachment(TRUE);
		}
		for (LLViewerObject::child_list_t::iterator iter = object->mChildList.begin();
			iter != object->mChildList.end(); ++iter)
		{
			LLViewerObject* childp = *iter;
			if (childp && childp->mText.notNull())
			{
				childp->mText->setOnHUDAttachment(TRUE);
			}
		}
	}
	calcLOD();
	mUpdateXform = TRUE;

	return TRUE;
}

//-----------------------------------------------------------------------------
// removeObject()
//-----------------------------------------------------------------------------
void LLViewerJointAttachment::removeObject(LLViewerObject *object)
{
	// force object visibile
	setAttachmentVisibility(TRUE);

	if (object->mDrawable.notNull())
	{
		//if object is active, make it static
		if(object->mDrawable->isActive())
		{
			object->mDrawable->makeStatic(FALSE) ;
		}

		LLVector3 cur_position = object->getRenderPosition();
		LLQuaternion cur_rotation = object->getRenderRotation();

		object->mDrawable->mXform.setPosition(cur_position);
		object->mDrawable->mXform.setRotation(cur_rotation);
		gPipeline.markMoved(object->mDrawable, TRUE);
		gPipeline.markTextured(object->mDrawable); // face may need to change draw pool to/from POOL_HUD
		object->mDrawable->clearState(LLDrawable::USE_BACKLIGHT);

		if (mIsHUDAttachment)
		{
			for (S32 face_num = 0; face_num < object->mDrawable->getNumFaces(); face_num++)
			{
				object->mDrawable->getFace(face_num)->clearState(LLFace::HUD_RENDER);
			}
		}
	}

	for (LLViewerObject::child_list_t::iterator iter = object->mChildList.begin();
		 iter != object->mChildList.end(); ++iter)
	{
		LLViewerObject* childp = *iter;
		if (childp && childp->mDrawable.notNull())
		{
			childp->mDrawable->clearState(LLDrawable::USE_BACKLIGHT);
			gPipeline.markTextured(childp->mDrawable); // face may need to change draw pool to/from POOL_HUD
			if (mIsHUDAttachment)
			{
				for (S32 face_num = 0; face_num < childp->mDrawable->getNumFaces(); face_num++)
				{
					childp->mDrawable->getFace(face_num)->clearState(LLFace::HUD_RENDER);
				}
			}
		}
	} 

	if (mIsHUDAttachment)
	{
		if (object->mText.notNull())
		{
			object->mText->setOnHUDAttachment(FALSE);
		}
		for (LLViewerObject::child_list_t::iterator iter = object->mChildList.begin();
			iter != object->mChildList.end(); ++iter)
		{
			LLViewerObject* childp = *iter;
			if (childp->mText.notNull())
			{
				childp->mText->setOnHUDAttachment(FALSE);
			}
		}
	}

	mAttachedObject = NULL;
	mUpdateXform = FALSE;
	mItemID.setNull();
}

//-----------------------------------------------------------------------------
// setAttachmentVisibility()
//-----------------------------------------------------------------------------
void LLViewerJointAttachment::setAttachmentVisibility(BOOL visible)
{
	if (!mAttachedObject || mAttachedObject->mDrawable.isNull() || 
		!(mAttachedObject->mDrawable->getSpatialBridge()))
		return;

	if (visible)
	{
		// Hack to make attachments not visible by disabling their type mask!
		// This will break if you can ever attach non-volumes! - djs 02/14/03
		mAttachedObject->mDrawable->getSpatialBridge()->mDrawableType = 
			mAttachedObject->isHUDAttachment() ? LLPipeline::RENDER_TYPE_HUD : LLPipeline::RENDER_TYPE_VOLUME;
	}
	else
	{
		mAttachedObject->mDrawable->getSpatialBridge()->mDrawableType = 0;
	}
}

//-----------------------------------------------------------------------------
// setOriginalPosition()
//-----------------------------------------------------------------------------
void LLViewerJointAttachment::setOriginalPosition(LLVector3& position)
{
	mOriginalPos = position;
	setPosition(position);
}

//-----------------------------------------------------------------------------
// clampObjectPosition()
//-----------------------------------------------------------------------------
void LLViewerJointAttachment::clampObjectPosition()
{
	if (mAttachedObject)
	{
		// *NOTE: object can drift when hitting maximum radius
		LLVector3 attachmentPos = mAttachedObject->getPosition();
		F32 dist = attachmentPos.normVec();
		dist = llmin(dist, MAX_ATTACHMENT_DIST);
		attachmentPos *= dist;
		mAttachedObject->setPosition(attachmentPos);
	}
}

//-----------------------------------------------------------------------------
// calcLOD()
//-----------------------------------------------------------------------------
void LLViewerJointAttachment::calcLOD()
{
	F32 maxarea = mAttachedObject->getMaxScale() * mAttachedObject->getMidScale();
	for (LLViewerObject::child_list_t::iterator iter = mAttachedObject->mChildList.begin();
		 iter != mAttachedObject->mChildList.end(); ++iter)
	{
		LLViewerObject* childp = *iter;
		F32 area = childp->getMaxScale() * childp->getMidScale();
		maxarea = llmax(maxarea, area);
	}
	maxarea = llclamp(maxarea, .01f*.01f, 1.f);
	F32 avatar_area = (4.f * 4.f); // pixels for an avatar sized attachment
	F32 min_pixel_area = avatar_area / maxarea;
	setLOD(min_pixel_area);
}

//-----------------------------------------------------------------------------
// updateLOD()
//-----------------------------------------------------------------------------
BOOL LLViewerJointAttachment::updateLOD(F32 pixel_area, BOOL activate)
{
	BOOL res = FALSE;
	if (!mValid)
	{
		setValid(TRUE, TRUE);
		res = TRUE;
	}
	return res;
}