diff options
Diffstat (limited to 'indra/newview/llhudnametag.cpp')
| -rw-r--r-- | indra/newview/llhudnametag.cpp | 1916 |
1 files changed, 958 insertions, 958 deletions
diff --git a/indra/newview/llhudnametag.cpp b/indra/newview/llhudnametag.cpp index 61c62572b3..4224f7d134 100644 --- a/indra/newview/llhudnametag.cpp +++ b/indra/newview/llhudnametag.cpp @@ -1,958 +1,958 @@ -/**
- * @file llhudnametag.cpp
- * @brief Name tags for avatars
- * @author James Cook
- *
- * $LicenseInfo:firstyear=2010&license=viewerlgpl$
- * Second Life Viewer Source Code
- * Copyright (C) 2010, Linden Research, Inc.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation;
- * version 2.1 of the License only.
- *
- * This library 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
- * $/LicenseInfo$
- */
-
-#include "llviewerprecompiledheaders.h"
-
-#include "llhudnametag.h"
-
-#include "llrender.h"
-#include "lltracerecording.h"
-
-#include "llagent.h"
-#include "llviewercontrol.h"
-#include "llcriticaldamp.h"
-#include "lldrawable.h"
-#include "llfontgl.h"
-#include "llglheaders.h"
-#include "llhudrender.h"
-#include "llui.h"
-#include "llviewercamera.h"
-#include "llviewertexturelist.h"
-#include "llviewerobject.h"
-#include "llvovolume.h"
-#include "llviewerwindow.h"
-#include "llstatusbar.h"
-#include "llmenugl.h"
-#include "pipeline.h"
-#include <boost/tokenizer.hpp>
-
-
-const F32 SPRING_STRENGTH = 0.7f;
-const F32 HORIZONTAL_PADDING = 16.f;
-const F32 VERTICAL_PADDING = 12.f;
-const F32 LINE_PADDING = 3.f; // aka "leading"
-const F32 BUFFER_SIZE = 2.f;
-const S32 NUM_OVERLAP_ITERATIONS = 10;
-const F32 POSITION_DAMPING_TC = 0.2f;
-const F32 MAX_STABLE_CAMERA_VELOCITY = 0.1f;
-const F32 LOD_0_SCREEN_COVERAGE = 0.15f;
-const F32 LOD_1_SCREEN_COVERAGE = 0.30f;
-const F32 LOD_2_SCREEN_COVERAGE = 0.40f;
-
-std::set<LLPointer<LLHUDNameTag> > LLHUDNameTag::sTextObjects;
-std::vector<LLPointer<LLHUDNameTag> > LLHUDNameTag::sVisibleTextObjects;
-bool LLHUDNameTag::sDisplayText = true ;
-const F32 LLHUDNameTag::NAMETAG_MAX_WIDTH = 298.f;
-const F32 LLHUDNameTag::HUD_TEXT_MAX_WIDTH = 190.f;
-
-bool llhudnametag_further_away::operator()(const LLPointer<LLHUDNameTag>& lhs, const LLPointer<LLHUDNameTag>& rhs) const
-{
- return lhs->getDistance() > rhs->getDistance();
-}
-
-
-LLHUDNameTag::LLHUDNameTag(const U8 type)
-: LLHUDObject(type),
- mDoFade(true),
- mFadeDistance(8.f),
- mFadeRange(4.f),
- mLastDistance(0.f),
- mZCompare(true),
- mVisibleOffScreen(false),
- mOffscreen(false),
- mColor(1.f, 1.f, 1.f, 1.f),
-// mScale(),
- mWidth(0.f),
- mHeight(0.f),
- mFontp(LLFontGL::getFontSansSerifSmall()),
- mBoldFontp(LLFontGL::getFontSansSerifBold()),
- mSoftScreenRect(),
- mPositionAgent(),
- mPositionOffset(),
- mMass(10.f),
- mMaxLines(10),
- mOffsetY(0),
- mRadius(0.1f),
- mTextSegments(),
- mLabelSegments(),
- mTextAlignment(ALIGN_TEXT_CENTER),
- mVertAlignment(ALIGN_VERT_CENTER),
- mLOD(0),
- mHidden(false)
-{
- LLPointer<LLHUDNameTag> ptr(this);
- sTextObjects.insert(ptr);
-
- mRoundedRectImgp = LLUI::getUIImage("Rounded_Rect");
- mRoundedRectTopImgp = LLUI::getUIImage("Rounded_Rect_Top");
-}
-
-LLHUDNameTag::~LLHUDNameTag()
-{
-}
-
-
-bool LLHUDNameTag::lineSegmentIntersect(const LLVector4a& start, const LLVector4a& end, LLVector4a& intersection, bool debug_render)
-{
- if (!mVisible || mHidden)
- {
- return false;
- }
-
- // don't pick text that isn't bound to a viewerobject
- if (!mSourceObject || mSourceObject->mDrawable.isNull())
- {
- return false;
- }
-
- F32 alpha_factor = 1.f;
- LLColor4 text_color = mColor;
- if (mDoFade)
- {
- if (mLastDistance > mFadeDistance)
- {
- alpha_factor = llmax(0.f, 1.f - (mLastDistance - mFadeDistance)/mFadeRange);
- text_color.mV[3] = text_color.mV[3]*alpha_factor;
- }
- }
- if (text_color.mV[3] < 0.01f)
- {
- return false;
- }
-
- mOffsetY = lltrunc(mHeight * ((mVertAlignment == ALIGN_VERT_CENTER) ? 0.5f : 1.f));
-
- LLVector3 position = mPositionAgent;
-
- if (mSourceObject)
- { //get intersection of eye through mPositionAgent to plane of source object
- //using this position keeps the camera from focusing on some seemingly random
- //point several meters in front of the nametag
- const LLVector3& p = mSourceObject->getPositionAgent();
- const LLVector3& n = LLViewerCamera::getInstance()->getAtAxis();
- const LLVector3& eye = LLViewerCamera::getInstance()->getOrigin();
-
- LLVector3 ray = position-eye;
- ray.normalize();
-
- LLVector3 delta = p-position;
- F32 dist = delta*n;
- F32 dt = dist/(ray*n);
- position += ray*dt;
- }
-
- // scale screen size of borders down
-
- LLVector3 x_pixel_vec;
- LLVector3 y_pixel_vec;
-
- LLViewerCamera::getInstance()->getPixelVectors(position, y_pixel_vec, x_pixel_vec);
-
- LLVector3 width_vec = mWidth * x_pixel_vec;
- LLVector3 height_vec = mHeight * y_pixel_vec;
-
- LLCoordGL screen_pos;
- LLViewerCamera::getInstance()->projectPosAgentToScreen(position, screen_pos, false);
-
- LLVector2 screen_offset;
- screen_offset = updateScreenPos(mPositionOffset);
-
- LLVector3 render_position = position
- + (x_pixel_vec * screen_offset.mV[VX])
- + (y_pixel_vec * screen_offset.mV[VY]);
-
-
- LLVector3 bg_pos = render_position
- + (F32)mOffsetY * y_pixel_vec
- - (width_vec / 2.f)
- - (height_vec);
-
- LLVector3 v[] =
- {
- bg_pos,
- bg_pos + width_vec,
- bg_pos + width_vec + height_vec,
- bg_pos + height_vec,
- };
-
- LLVector4a dir;
- dir.setSub(end,start);
- F32 a, b, t;
-
- LLVector4a v0,v1,v2,v3;
- v0.load3(v[0].mV);
- v1.load3(v[1].mV);
- v2.load3(v[2].mV);
- v3.load3(v[3].mV);
-
- if (LLTriangleRayIntersect(v0, v1, v2, start, dir, a, b, t) ||
- LLTriangleRayIntersect(v2, v3, v0, start, dir, a, b, t) )
- {
- if (t <= 1.f)
- {
- dir.mul(t);
- intersection.setAdd(start, dir);
- return true;
- }
- }
-
- return false;
-}
-
-void LLHUDNameTag::render()
-{
- LL_PROFILE_ZONE_SCOPED_CATEGORY_UI;
- if (sDisplayText)
- {
- LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
- //LLGLDisable gls_stencil(GL_STENCIL_TEST);
- renderText(false);
- }
-}
-
-void LLHUDNameTag::renderText(bool for_select)
-{
- if (!mVisible || mHidden)
- {
- return;
- }
-
- // don't pick text that isn't bound to a viewerobject
- if (for_select &&
- (!mSourceObject || mSourceObject->mDrawable.isNull()))
- {
- return;
- }
-
- if (for_select)
- {
- gGL.getTexUnit(0)->disable();
- }
- else
- {
- gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
- }
-
- LLGLState gls_blend(GL_BLEND, !for_select);
-
- LLColor4 shadow_color(0.f, 0.f, 0.f, 1.f);
- F32 alpha_factor = 1.f;
- LLColor4 text_color = mColor;
- if (mDoFade)
- {
- if (mLastDistance > mFadeDistance)
- {
- alpha_factor = llmax(0.f, 1.f - (mLastDistance - mFadeDistance)/mFadeRange);
- text_color.mV[3] = text_color.mV[3]*alpha_factor;
- }
- }
- if (text_color.mV[3] < 0.01f)
- {
- return;
- }
- shadow_color.mV[3] = text_color.mV[3];
-
- mOffsetY = lltrunc(mHeight * ((mVertAlignment == ALIGN_VERT_CENTER) ? 0.5f : 1.f));
-
- // *TODO: make this a per-text setting
- LLColor4 bg_color = LLUIColorTable::instance().getColor("NameTagBackground");
- bg_color.setAlpha(gSavedSettings.getF32("ChatBubbleOpacity") * alpha_factor);
-
- // scale screen size of borders down
- //RN: for now, text on hud objects is never occluded
-
- LLVector3 x_pixel_vec;
- LLVector3 y_pixel_vec;
-
- LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec);
-
- LLVector3 width_vec = mWidth * x_pixel_vec;
- LLVector3 height_vec = mHeight * y_pixel_vec;
-
- mRadius = (width_vec + height_vec).magVec() * 0.5f;
-
- LLCoordGL screen_pos;
- LLViewerCamera::getInstance()->projectPosAgentToScreen(mPositionAgent, screen_pos, false);
-
- LLVector2 screen_offset = updateScreenPos(mPositionOffset);
-
- LLVector3 render_position = mPositionAgent
- + (x_pixel_vec * screen_offset.mV[VX])
- + (y_pixel_vec * screen_offset.mV[VY]);
-
- LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
- LLRect screen_rect;
- screen_rect.setCenterAndSize(0, static_cast<S32>(lltrunc(-mHeight / 2 + mOffsetY)), static_cast<S32>(lltrunc(mWidth)), static_cast<S32>(lltrunc(mHeight)));
- mRoundedRectImgp->draw3D(render_position, x_pixel_vec, y_pixel_vec, screen_rect, bg_color);
- if (mLabelSegments.size())
- {
- LLRect label_top_rect = screen_rect;
- const S32 label_height = ll_round((mFontp->getLineHeight() * (F32)mLabelSegments.size() + (VERTICAL_PADDING / 3.f)));
- label_top_rect.mBottom = label_top_rect.mTop - label_height;
- LLColor4 label_top_color = text_color;
- label_top_color.mV[VALPHA] = gSavedSettings.getF32("ChatBubbleOpacity") * alpha_factor;
-
- mRoundedRectTopImgp->draw3D(render_position, x_pixel_vec, y_pixel_vec, label_top_rect, label_top_color);
- }
-
- F32 y_offset = (F32)mOffsetY;
-
- // Render label
- {
- for(std::vector<LLHUDTextSegment>::iterator segment_iter = mLabelSegments.begin();
- segment_iter != mLabelSegments.end(); ++segment_iter )
- {
- // Label segments use default font
- const LLFontGL* fontp = (segment_iter->mStyle == LLFontGL::BOLD) ? mBoldFontp : mFontp;
- y_offset -= fontp->getLineHeight();
-
- F32 x_offset;
- if (mTextAlignment == ALIGN_TEXT_CENTER)
- {
- x_offset = -0.5f*segment_iter->getWidth(fontp);
- }
- else // ALIGN_LEFT
- {
- x_offset = -0.5f * mWidth + (HORIZONTAL_PADDING / 2.f);
- }
-
- LLColor4 label_color(0.f, 0.f, 0.f, 1.f);
- label_color.mV[VALPHA] = alpha_factor;
- hud_render_text(segment_iter->getText(), render_position, *fontp, segment_iter->mStyle, LLFontGL::NO_SHADOW, x_offset, y_offset, label_color, false);
- }
- }
-
- // Render text
- {
- // -1 mMaxLines means unlimited lines.
- S32 start_segment;
- S32 max_lines = getMaxLines();
-
- if (max_lines < 0)
- {
- start_segment = 0;
- }
- else
- {
- start_segment = llmax((S32)0, (S32)mTextSegments.size() - max_lines);
- }
-
- for (std::vector<LLHUDTextSegment>::iterator segment_iter = mTextSegments.begin() + start_segment;
- segment_iter != mTextSegments.end(); ++segment_iter )
- {
- const LLFontGL* fontp = segment_iter->mFont;
- y_offset -= fontp->getLineHeight();
- y_offset -= LINE_PADDING;
-
- U8 style = segment_iter->mStyle;
- LLFontGL::ShadowType shadow = LLFontGL::DROP_SHADOW;
-
- F32 x_offset;
- if (mTextAlignment== ALIGN_TEXT_CENTER)
- {
- x_offset = -0.5f*segment_iter->getWidth(fontp);
- }
- else // ALIGN_LEFT
- {
- x_offset = -0.5f * mWidth + (HORIZONTAL_PADDING / 2.f);
-
- // *HACK
- x_offset += 1;
- }
-
- text_color = segment_iter->mColor;
- text_color.mV[VALPHA] *= alpha_factor;
-
- hud_render_text(segment_iter->getText(), render_position, *fontp, style, shadow, x_offset, y_offset, text_color, false);
- }
- }
- /// Reset the default color to white. The renderer expects this to be the default.
- gGL.color4f(1.0f, 1.0f, 1.0f, 1.0f);
- if (for_select)
- {
- gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
- }
-}
-
-void LLHUDNameTag::setString(const std::string &text_utf8)
-{
- mTextSegments.clear();
- addLine(text_utf8, mColor);
-}
-
-void LLHUDNameTag::clearString()
-{
- mTextSegments.clear();
-}
-
-
-void LLHUDNameTag::addLine(const std::string &text_utf8,
- const LLColor4& color,
- const LLFontGL::StyleFlags style,
- const LLFontGL* font,
- const bool use_ellipses,
- F32 max_pixels)
-{
- LLWString wline = utf8str_to_wstring(text_utf8);
- if (!wline.empty())
- {
- // use default font for segment if custom font not specified
- if (!font)
- {
- font = mFontp;
- }
- typedef boost::tokenizer<boost::char_separator<llwchar>, LLWString::const_iterator, LLWString > tokenizer;
- LLWString seps(utf8str_to_wstring("\r\n"));
- boost::char_separator<llwchar> sep(seps.c_str());
-
- tokenizer tokens(wline, sep);
- tokenizer::iterator iter = tokens.begin();
-
- max_pixels = llmin(max_pixels, NAMETAG_MAX_WIDTH);
- while (iter != tokens.end())
- {
- U32 line_length = 0;
- if (use_ellipses)
- {
- // "QualityAssuranceAssuresQuality1" will end up like "QualityAssuranceAssuresQual..."
- // "QualityAssuranceAssuresQuality QualityAssuranceAssuresQuality" will end up like "QualityAssuranceAssuresQual..."
- // "QualityAssurance AssuresQuality1" will end up as "QualityAssurance AssuresQua..." because we are enforcing single line
- do
- {
- S32 segment_length = font->maxDrawableChars(iter->substr(line_length).c_str(), max_pixels, wline.length(), LLFontGL::ANYWHERE);
- if (segment_length + line_length < wline.length()) // since we only draw one string, line_length should be 0
- {
- // token does does not fit into signle line, need to draw "...".
- // Use four dots for ellipsis width to generate padding
- const LLWString dots_pad(utf8str_to_wstring(std::string("....")));
- S32 elipses_width = font->getWidthF32(dots_pad.c_str());
- // truncated string length
- segment_length = font->maxDrawableChars(iter->substr(line_length).c_str(), max_pixels - elipses_width, wline.length(), LLFontGL::ANYWHERE);
- const LLWString dots(utf8str_to_wstring(std::string("...")));
- LLHUDTextSegment segment(iter->substr(line_length, segment_length) + dots, style, color, font);
- mTextSegments.push_back(segment);
- break; // consider it to be complete
- }
- else
- {
- // token fits fully into string
- LLHUDTextSegment segment(iter->substr(line_length, segment_length), style, color, font);
- mTextSegments.push_back(segment);
- line_length += segment_length;
- }
- } while (line_length != iter->size());
- }
- else
- {
- // "QualityAssuranceAssuresQuality 1" will be split into two lines "QualityAssuranceAssuresQualit" and "y 1"
- // "QualityAssurance AssuresQuality 1" will be split into two lines "QualityAssurance" and "AssuresQuality"
- do
- {
- S32 segment_length = font->maxDrawableChars(iter->substr(line_length).c_str(), max_pixels, wline.length(), LLFontGL::WORD_BOUNDARY_IF_POSSIBLE);
- LLHUDTextSegment segment(iter->substr(line_length, segment_length), style, color, font);
- mTextSegments.push_back(segment);
- line_length += segment_length;
- } while (line_length != iter->size());
- }
- ++iter;
- }
- }
-}
-
-void LLHUDNameTag::setLabel(const std::string &label_utf8)
-{
- mLabelSegments.clear();
- addLabel(label_utf8);
-}
-
-void LLHUDNameTag::addLabel(const std::string& label_utf8, F32 max_pixels)
-{
- LLWString wstr = utf8string_to_wstring(label_utf8);
- if (!wstr.empty())
- {
- LLWString seps(utf8str_to_wstring("\r\n"));
- LLWString empty;
-
- typedef boost::tokenizer<boost::char_separator<llwchar>, LLWString::const_iterator, LLWString > tokenizer;
- boost::char_separator<llwchar> sep(seps.c_str(), empty.c_str(), boost::keep_empty_tokens);
-
- tokenizer tokens(wstr, sep);
- tokenizer::iterator iter = tokens.begin();
-
- max_pixels = llmin(max_pixels, NAMETAG_MAX_WIDTH);
-
- while (iter != tokens.end())
- {
- U32 line_length = 0;
- do
- {
- S32 segment_length = mFontp->maxDrawableChars(iter->substr(line_length).c_str(),
- max_pixels, wstr.length(), LLFontGL::WORD_BOUNDARY_IF_POSSIBLE);
- LLHUDTextSegment segment(iter->substr(line_length, segment_length), LLFontGL::NORMAL, mColor, mFontp);
- mLabelSegments.push_back(segment);
- line_length += segment_length;
- }
- while (line_length != iter->size());
- ++iter;
- }
- }
-}
-
-void LLHUDNameTag::setZCompare(const bool zcompare)
-{
- mZCompare = zcompare;
-}
-
-void LLHUDNameTag::setFont(const LLFontGL* font)
-{
- mFontp = font;
-}
-
-
-void LLHUDNameTag::setColor(const LLColor4 &color)
-{
- mColor = color;
- for (std::vector<LLHUDTextSegment>::iterator segment_iter = mTextSegments.begin();
- segment_iter != mTextSegments.end(); ++segment_iter )
- {
- segment_iter->mColor = color;
- }
-}
-
-void LLHUDNameTag::setAlpha(F32 alpha)
-{
- mColor.mV[VALPHA] = alpha;
- for (std::vector<LLHUDTextSegment>::iterator segment_iter = mTextSegments.begin();
- segment_iter != mTextSegments.end(); ++segment_iter )
- {
- segment_iter->mColor.mV[VALPHA] = alpha;
- }
-}
-
-
-void LLHUDNameTag::setDoFade(const bool do_fade)
-{
- mDoFade = do_fade;
-}
-
-void LLHUDNameTag::updateVisibility()
-{
- if (mSourceObject)
- {
- mSourceObject->updateText();
- }
-
- mPositionAgent = gAgent.getPosAgentFromGlobal(mPositionGlobal);
-
- if (!mSourceObject)
- {
- //LL_WARNS() << "LLHUDNameTag::updateScreenPos -- mSourceObject is NULL!" << LL_ENDL;
- mVisible = true;
- sVisibleTextObjects.push_back(LLPointer<LLHUDNameTag> (this));
- return;
- }
-
- // Not visible if parent object is dead
- if (mSourceObject->isDead())
- {
- mVisible = false;
- return;
- }
-
- // push text towards camera by radius of object, but not past camera
- LLVector3 vec_from_camera = mPositionAgent - LLViewerCamera::getInstance()->getOrigin();
- LLVector3 dir_from_camera = vec_from_camera;
- dir_from_camera.normVec();
-
- if (dir_from_camera * LLViewerCamera::getInstance()->getAtAxis() <= 0.f)
- { //text is behind camera, don't render
- mVisible = false;
- return;
- }
-
- if (vec_from_camera * LLViewerCamera::getInstance()->getAtAxis() <= LLViewerCamera::getInstance()->getNear() + 0.1f + mSourceObject->getVObjRadius())
- {
- mPositionAgent = LLViewerCamera::getInstance()->getOrigin() + vec_from_camera * ((LLViewerCamera::getInstance()->getNear() + 0.1f) / (vec_from_camera * LLViewerCamera::getInstance()->getAtAxis()));
- }
- else
- {
- mPositionAgent -= dir_from_camera * mSourceObject->getVObjRadius();
- }
-
- mLastDistance = (mPositionAgent - LLViewerCamera::getInstance()->getOrigin()).magVec();
-
- if (mLOD >= 3 || !mTextSegments.size() || (mDoFade && (mLastDistance > mFadeDistance + mFadeRange)))
- {
- mVisible = false;
- return;
- }
-
- LLVector3 x_pixel_vec;
- LLVector3 y_pixel_vec;
-
- LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec);
-
- LLVector3 render_position = mPositionAgent +
- (x_pixel_vec * mPositionOffset.mV[VX]) +
- (y_pixel_vec * mPositionOffset.mV[VY]);
-
- mOffscreen = false;
- if (!LLViewerCamera::getInstance()->sphereInFrustum(render_position, mRadius))
- {
- if (!mVisibleOffScreen)
- {
- mVisible = false;
- return;
- }
- else
- {
- mOffscreen = true;
- }
- }
-
- mVisible = true;
- sVisibleTextObjects.push_back(LLPointer<LLHUDNameTag> (this));
-}
-
-LLVector2 LLHUDNameTag::updateScreenPos(LLVector2 &offset)
-{
- LLCoordGL screen_pos;
- LLVector2 screen_pos_vec;
- LLVector3 x_pixel_vec;
- LLVector3 y_pixel_vec;
- LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec);
- LLVector3 world_pos = mPositionAgent + (offset.mV[VX] * x_pixel_vec) + (offset.mV[VY] * y_pixel_vec);
- if (!LLViewerCamera::getInstance()->projectPosAgentToScreen(world_pos, screen_pos, false) && mVisibleOffScreen)
- {
- // bubble off-screen, so find a spot for it along screen edge
- LLViewerCamera::getInstance()->projectPosAgentToScreenEdge(world_pos, screen_pos);
- }
-
- screen_pos_vec.setVec((F32)screen_pos.mX, (F32)screen_pos.mY);
-
- LLRect world_rect = gViewerWindow->getWorldViewRectScaled();
- S32 bottom = world_rect.mBottom + STATUS_BAR_HEIGHT;
-
- LLVector2 screen_center;
- screen_center.mV[VX] = llclamp((F32)screen_pos_vec.mV[VX], (F32)world_rect.mLeft + mWidth * 0.5f, (F32)world_rect.mRight - mWidth * 0.5f);
-
- if(mVertAlignment == ALIGN_VERT_TOP)
- {
- screen_center.mV[VY] = llclamp((F32)screen_pos_vec.mV[VY],
- (F32)bottom,
- (F32)world_rect.mTop - mHeight - (F32)MENU_BAR_HEIGHT);
- mSoftScreenRect.setLeftTopAndSize(screen_center.mV[VX] - (mWidth + BUFFER_SIZE) * 0.5f,
- screen_center.mV[VY] + (mHeight + BUFFER_SIZE), mWidth + BUFFER_SIZE, mHeight + BUFFER_SIZE);
- }
- else
- {
- screen_center.mV[VY] = llclamp((F32)screen_pos_vec.mV[VY],
- (F32)bottom + mHeight * 0.5f,
- (F32)world_rect.mTop - mHeight * 0.5f - (F32)MENU_BAR_HEIGHT);
- mSoftScreenRect.setCenterAndSize(screen_center.mV[VX], screen_center.mV[VY], mWidth + BUFFER_SIZE, mHeight + BUFFER_SIZE);
- }
-
- return offset + (screen_center - LLVector2((F32)screen_pos.mX, (F32)screen_pos.mY));
-}
-
-void LLHUDNameTag::updateSize()
-{
- F32 height = 0.f;
- F32 width = 0.f;
-
- S32 max_lines = getMaxLines();
- //S32 lines = (max_lines < 0) ? (S32)mTextSegments.size() : llmin((S32)mTextSegments.size(), max_lines);
- //F32 height = (F32)mFontp->getLineHeight() * (lines + mLabelSegments.size());
-
- S32 start_segment;
- if (max_lines < 0) start_segment = 0;
- else start_segment = llmax((S32)0, (S32)mTextSegments.size() - max_lines);
-
- std::vector<LLHUDTextSegment>::iterator iter = mTextSegments.begin() + start_segment;
- while (iter != mTextSegments.end())
- {
- const LLFontGL* fontp = iter->mFont;
- height += fontp->getLineHeight();
- height += LINE_PADDING;
- width = llmax(width, llmin(iter->getWidth(fontp), NAMETAG_MAX_WIDTH));
- ++iter;
- }
-
- // Don't want line spacing under the last line
- if (height > 0.f)
- {
- height -= LINE_PADDING;
- }
-
- iter = mLabelSegments.begin();
- while (iter != mLabelSegments.end())
- {
- height += mFontp->getLineHeight();
- width = llmax(width, llmin(iter->getWidth(mFontp), NAMETAG_MAX_WIDTH));
- ++iter;
- }
-
- if (width == 0.f)
- {
- return;
- }
-
- width += HORIZONTAL_PADDING;
- height += VERTICAL_PADDING;
-
- // *TODO: Could do a timer-based resize here
- //mWidth = llmax(width, lerp(mWidth, (F32)width, u));
- //mHeight = llmax(height, lerp(mHeight, (F32)height, u));
- mWidth = width;
- mHeight = height;
-}
-
-void LLHUDNameTag::updateAll()
-{
- LL_PROFILE_ZONE_SCOPED_CATEGORY_UI;
- // iterate over all text objects, calculate their restoration forces,
- // and add them to the visible set if they are on screen and close enough
- sVisibleTextObjects.clear();
-
- TextObjectIterator text_it;
- for (text_it = sTextObjects.begin(); text_it != sTextObjects.end(); ++text_it)
- {
- LLHUDNameTag* textp = (*text_it);
- textp->mTargetPositionOffset.clearVec();
- textp->updateSize();
- textp->updateVisibility();
- }
-
- // sort back to front for rendering purposes
- std::sort(sVisibleTextObjects.begin(), sVisibleTextObjects.end(), llhudnametag_further_away());
-
- // iterate from front to back, and set LOD based on current screen coverage
- F32 screen_area = (F32)(gViewerWindow->getWindowWidthScaled() * gViewerWindow->getWindowHeightScaled());
- F32 current_screen_area = 0.f;
- std::vector<LLPointer<LLHUDNameTag> >::reverse_iterator r_it;
- for (r_it = sVisibleTextObjects.rbegin(); r_it != sVisibleTextObjects.rend(); ++r_it)
- {
- LLHUDNameTag* textp = (*r_it);
- if (current_screen_area / screen_area > LOD_2_SCREEN_COVERAGE)
- {
- textp->setLOD(3);
- }
- else if (current_screen_area / screen_area > LOD_1_SCREEN_COVERAGE)
- {
- textp->setLOD(2);
- }
- else if (current_screen_area / screen_area > LOD_0_SCREEN_COVERAGE)
- {
- textp->setLOD(1);
- }
- else
- {
- textp->setLOD(0);
- }
- textp->updateSize();
- // find on-screen position and initialize collision rectangle
- textp->mTargetPositionOffset = textp->updateScreenPos(LLVector2::zero);
- current_screen_area += (F32)(textp->mSoftScreenRect.getWidth() * textp->mSoftScreenRect.getHeight());
- }
-
- LLTrace::CountStatHandle<>* camera_vel_stat = LLViewerCamera::getVelocityStat();
- F32 camera_vel = LLTrace::get_frame_recording().getLastRecording().getPerSec(*camera_vel_stat);
- if (camera_vel > MAX_STABLE_CAMERA_VELOCITY)
- {
- return;
- }
-
- VisibleTextObjectIterator src_it;
-
- for (S32 i = 0; i < NUM_OVERLAP_ITERATIONS; i++)
- {
- for (src_it = sVisibleTextObjects.begin(); src_it != sVisibleTextObjects.end(); ++src_it)
- {
- LLHUDNameTag* src_textp = (*src_it);
-
- VisibleTextObjectIterator dst_it = src_it;
- ++dst_it;
- for (; dst_it != sVisibleTextObjects.end(); ++dst_it)
- {
- LLHUDNameTag* dst_textp = (*dst_it);
-
- if (src_textp->mSoftScreenRect.overlaps(dst_textp->mSoftScreenRect))
- {
- LLRectf intersect_rect = src_textp->mSoftScreenRect;
- intersect_rect.intersectWith(dst_textp->mSoftScreenRect);
- intersect_rect.stretch(-BUFFER_SIZE * 0.5f);
-
- F32 src_center_x = src_textp->mSoftScreenRect.getCenterX();
- F32 src_center_y = src_textp->mSoftScreenRect.getCenterY();
- F32 dst_center_x = dst_textp->mSoftScreenRect.getCenterX();
- F32 dst_center_y = dst_textp->mSoftScreenRect.getCenterY();
- F32 intersect_center_x = intersect_rect.getCenterX();
- F32 intersect_center_y = intersect_rect.getCenterY();
- LLVector2 force = lerp(LLVector2(dst_center_x - intersect_center_x, dst_center_y - intersect_center_y),
- LLVector2(intersect_center_x - src_center_x, intersect_center_y - src_center_y),
- 0.5f);
- force.setVec(dst_center_x - src_center_x, dst_center_y - src_center_y);
- force.normVec();
-
- LLVector2 src_force = -1.f * force;
- LLVector2 dst_force = force;
-
- LLVector2 force_strength;
- F32 src_mult = dst_textp->mMass / (dst_textp->mMass + src_textp->mMass);
- F32 dst_mult = 1.f - src_mult;
- F32 src_aspect_ratio = src_textp->mSoftScreenRect.getWidth() / src_textp->mSoftScreenRect.getHeight();
- F32 dst_aspect_ratio = dst_textp->mSoftScreenRect.getWidth() / dst_textp->mSoftScreenRect.getHeight();
- src_force.mV[VY] *= src_aspect_ratio;
- src_force.normVec();
- dst_force.mV[VY] *= dst_aspect_ratio;
- dst_force.normVec();
-
- src_force.mV[VX] *= llmin(intersect_rect.getWidth() * src_mult, intersect_rect.getHeight() * SPRING_STRENGTH);
- src_force.mV[VY] *= llmin(intersect_rect.getHeight() * src_mult, intersect_rect.getWidth() * SPRING_STRENGTH);
- dst_force.mV[VX] *= llmin(intersect_rect.getWidth() * dst_mult, intersect_rect.getHeight() * SPRING_STRENGTH);
- dst_force.mV[VY] *= llmin(intersect_rect.getHeight() * dst_mult, intersect_rect.getWidth() * SPRING_STRENGTH);
-
- src_textp->mTargetPositionOffset += src_force;
- dst_textp->mTargetPositionOffset += dst_force;
- src_textp->mTargetPositionOffset = src_textp->updateScreenPos(src_textp->mTargetPositionOffset);
- dst_textp->mTargetPositionOffset = dst_textp->updateScreenPos(dst_textp->mTargetPositionOffset);
- }
- }
- }
- }
-
- VisibleTextObjectIterator this_object_it;
- for (this_object_it = sVisibleTextObjects.begin(); this_object_it != sVisibleTextObjects.end(); ++this_object_it)
- {
- (*this_object_it)->mPositionOffset = lerp((*this_object_it)->mPositionOffset, (*this_object_it)->mTargetPositionOffset, LLSmoothInterpolation::getInterpolant(POSITION_DAMPING_TC));
- }
-}
-
-void LLHUDNameTag::setLOD(S32 lod)
-{
- mLOD = lod;
- //RN: uncomment this to visualize LOD levels
- //std::string label = llformat("%d", lod);
- //setLabel(label);
-}
-
-S32 LLHUDNameTag::getMaxLines()
-{
- switch(mLOD)
- {
- case 0:
- return mMaxLines;
- case 1:
- return mMaxLines > 0 ? mMaxLines / 2 : 5;
- case 2:
- return mMaxLines > 0 ? mMaxLines / 3 : 2;
- default:
- // label only
- return 0;
- }
-}
-
-void LLHUDNameTag::markDead()
-{
- sTextObjects.erase(LLPointer<LLHUDNameTag>(this));
- LLHUDObject::markDead();
-}
-
-void LLHUDNameTag::shiftAll(const LLVector3& offset)
-{
- TextObjectIterator text_it;
- for (text_it = sTextObjects.begin(); text_it != sTextObjects.end(); ++text_it)
- {
- LLHUDNameTag *textp = text_it->get();
- textp->shift(offset);
- }
-}
-
-void LLHUDNameTag::shift(const LLVector3& offset)
-{
- mPositionAgent += offset;
-}
-
-F32 LLHUDNameTag::getWorldHeight() const
-{
- const LLViewerCamera* camera = LLViewerCamera::getInstance();
- F32 height_meters = mLastDistance * (F32)tan(camera->getView() / 2.f);
- F32 height_pixels = camera->getViewHeightInPixels() / 2.f;
- F32 meters_per_pixel = height_meters / height_pixels;
- return mHeight * meters_per_pixel * gViewerWindow->getDisplayScale().mV[VY];
-}
-
-//static
-void LLHUDNameTag::addPickable(std::set<LLViewerObject*> &pick_list)
-{
- //this might put an object on the pick list a second time, overriding it's mGLName, which is ok
- // *FIX: we should probably cull against pick frustum
- VisibleTextObjectIterator text_it;
- for (text_it = sVisibleTextObjects.begin(); text_it != sVisibleTextObjects.end(); ++text_it)
- {
- pick_list.insert((*text_it)->mSourceObject);
- }
-}
-
-//static
-// called when UI scale changes, to flush font width caches
-void LLHUDNameTag::reshape()
-{
- TextObjectIterator text_it;
- for (text_it = sTextObjects.begin(); text_it != sTextObjects.end(); ++text_it)
- {
- LLHUDNameTag* textp = (*text_it);
- std::vector<LLHUDTextSegment>::iterator segment_iter;
- for (segment_iter = textp->mTextSegments.begin();
- segment_iter != textp->mTextSegments.end(); ++segment_iter )
- {
- segment_iter->clearFontWidthMap();
- }
- for(segment_iter = textp->mLabelSegments.begin();
- segment_iter != textp->mLabelSegments.end(); ++segment_iter )
- {
- segment_iter->clearFontWidthMap();
- }
- }
-}
-
-//============================================================================
-
-F32 LLHUDNameTag::LLHUDTextSegment::getWidth(const LLFontGL* font)
-{
- std::map<const LLFontGL*, F32>::iterator iter = mFontWidthMap.find(font);
- if (iter != mFontWidthMap.end())
- {
- return iter->second;
- }
- else
- {
- F32 width = font->getWidthF32(mText.c_str());
- mFontWidthMap[font] = width;
- return width;
- }
-}
+/** + * @file llhudnametag.cpp + * @brief Name tags for avatars + * @author James Cook + * + * $LicenseInfo:firstyear=2010&license=viewerlgpl$ + * Second Life Viewer Source Code + * Copyright (C) 2010, Linden Research, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; + * version 2.1 of the License only. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + * + * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA + * $/LicenseInfo$ + */ + +#include "llviewerprecompiledheaders.h" + +#include "llhudnametag.h" + +#include "llrender.h" +#include "lltracerecording.h" + +#include "llagent.h" +#include "llviewercontrol.h" +#include "llcriticaldamp.h" +#include "lldrawable.h" +#include "llfontgl.h" +#include "llglheaders.h" +#include "llhudrender.h" +#include "llui.h" +#include "llviewercamera.h" +#include "llviewertexturelist.h" +#include "llviewerobject.h" +#include "llvovolume.h" +#include "llviewerwindow.h" +#include "llstatusbar.h" +#include "llmenugl.h" +#include "pipeline.h" +#include <boost/tokenizer.hpp> + + +const F32 SPRING_STRENGTH = 0.7f; +const F32 HORIZONTAL_PADDING = 16.f; +const F32 VERTICAL_PADDING = 12.f; +const F32 LINE_PADDING = 3.f; // aka "leading" +const F32 BUFFER_SIZE = 2.f; +const S32 NUM_OVERLAP_ITERATIONS = 10; +const F32 POSITION_DAMPING_TC = 0.2f; +const F32 MAX_STABLE_CAMERA_VELOCITY = 0.1f; +const F32 LOD_0_SCREEN_COVERAGE = 0.15f; +const F32 LOD_1_SCREEN_COVERAGE = 0.30f; +const F32 LOD_2_SCREEN_COVERAGE = 0.40f; + +std::set<LLPointer<LLHUDNameTag> > LLHUDNameTag::sTextObjects; +std::vector<LLPointer<LLHUDNameTag> > LLHUDNameTag::sVisibleTextObjects; +bool LLHUDNameTag::sDisplayText = true ; +const F32 LLHUDNameTag::NAMETAG_MAX_WIDTH = 298.f; +const F32 LLHUDNameTag::HUD_TEXT_MAX_WIDTH = 190.f; + +bool llhudnametag_further_away::operator()(const LLPointer<LLHUDNameTag>& lhs, const LLPointer<LLHUDNameTag>& rhs) const +{ + return lhs->getDistance() > rhs->getDistance(); +} + + +LLHUDNameTag::LLHUDNameTag(const U8 type) +: LLHUDObject(type), + mDoFade(true), + mFadeDistance(8.f), + mFadeRange(4.f), + mLastDistance(0.f), + mZCompare(true), + mVisibleOffScreen(false), + mOffscreen(false), + mColor(1.f, 1.f, 1.f, 1.f), +// mScale(), + mWidth(0.f), + mHeight(0.f), + mFontp(LLFontGL::getFontSansSerifSmall()), + mBoldFontp(LLFontGL::getFontSansSerifBold()), + mSoftScreenRect(), + mPositionAgent(), + mPositionOffset(), + mMass(10.f), + mMaxLines(10), + mOffsetY(0), + mRadius(0.1f), + mTextSegments(), + mLabelSegments(), + mTextAlignment(ALIGN_TEXT_CENTER), + mVertAlignment(ALIGN_VERT_CENTER), + mLOD(0), + mHidden(false) +{ + LLPointer<LLHUDNameTag> ptr(this); + sTextObjects.insert(ptr); + + mRoundedRectImgp = LLUI::getUIImage("Rounded_Rect"); + mRoundedRectTopImgp = LLUI::getUIImage("Rounded_Rect_Top"); +} + +LLHUDNameTag::~LLHUDNameTag() +{ +} + + +bool LLHUDNameTag::lineSegmentIntersect(const LLVector4a& start, const LLVector4a& end, LLVector4a& intersection, bool debug_render) +{ + if (!mVisible || mHidden) + { + return false; + } + + // don't pick text that isn't bound to a viewerobject + if (!mSourceObject || mSourceObject->mDrawable.isNull()) + { + return false; + } + + F32 alpha_factor = 1.f; + LLColor4 text_color = mColor; + if (mDoFade) + { + if (mLastDistance > mFadeDistance) + { + alpha_factor = llmax(0.f, 1.f - (mLastDistance - mFadeDistance)/mFadeRange); + text_color.mV[3] = text_color.mV[3]*alpha_factor; + } + } + if (text_color.mV[3] < 0.01f) + { + return false; + } + + mOffsetY = lltrunc(mHeight * ((mVertAlignment == ALIGN_VERT_CENTER) ? 0.5f : 1.f)); + + LLVector3 position = mPositionAgent; + + if (mSourceObject) + { //get intersection of eye through mPositionAgent to plane of source object + //using this position keeps the camera from focusing on some seemingly random + //point several meters in front of the nametag + const LLVector3& p = mSourceObject->getPositionAgent(); + const LLVector3& n = LLViewerCamera::getInstance()->getAtAxis(); + const LLVector3& eye = LLViewerCamera::getInstance()->getOrigin(); + + LLVector3 ray = position-eye; + ray.normalize(); + + LLVector3 delta = p-position; + F32 dist = delta*n; + F32 dt = dist/(ray*n); + position += ray*dt; + } + + // scale screen size of borders down + + LLVector3 x_pixel_vec; + LLVector3 y_pixel_vec; + + LLViewerCamera::getInstance()->getPixelVectors(position, y_pixel_vec, x_pixel_vec); + + LLVector3 width_vec = mWidth * x_pixel_vec; + LLVector3 height_vec = mHeight * y_pixel_vec; + + LLCoordGL screen_pos; + LLViewerCamera::getInstance()->projectPosAgentToScreen(position, screen_pos, false); + + LLVector2 screen_offset; + screen_offset = updateScreenPos(mPositionOffset); + + LLVector3 render_position = position + + (x_pixel_vec * screen_offset.mV[VX]) + + (y_pixel_vec * screen_offset.mV[VY]); + + + LLVector3 bg_pos = render_position + + (F32)mOffsetY * y_pixel_vec + - (width_vec / 2.f) + - (height_vec); + + LLVector3 v[] = + { + bg_pos, + bg_pos + width_vec, + bg_pos + width_vec + height_vec, + bg_pos + height_vec, + }; + + LLVector4a dir; + dir.setSub(end,start); + F32 a, b, t; + + LLVector4a v0,v1,v2,v3; + v0.load3(v[0].mV); + v1.load3(v[1].mV); + v2.load3(v[2].mV); + v3.load3(v[3].mV); + + if (LLTriangleRayIntersect(v0, v1, v2, start, dir, a, b, t) || + LLTriangleRayIntersect(v2, v3, v0, start, dir, a, b, t) ) + { + if (t <= 1.f) + { + dir.mul(t); + intersection.setAdd(start, dir); + return true; + } + } + + return false; +} + +void LLHUDNameTag::render() +{ + LL_PROFILE_ZONE_SCOPED_CATEGORY_UI; + if (sDisplayText) + { + LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE); + //LLGLDisable gls_stencil(GL_STENCIL_TEST); + renderText(false); + } +} + +void LLHUDNameTag::renderText(bool for_select) +{ + if (!mVisible || mHidden) + { + return; + } + + // don't pick text that isn't bound to a viewerobject + if (for_select && + (!mSourceObject || mSourceObject->mDrawable.isNull())) + { + return; + } + + if (for_select) + { + gGL.getTexUnit(0)->disable(); + } + else + { + gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE); + } + + LLGLState gls_blend(GL_BLEND, !for_select); + + LLColor4 shadow_color(0.f, 0.f, 0.f, 1.f); + F32 alpha_factor = 1.f; + LLColor4 text_color = mColor; + if (mDoFade) + { + if (mLastDistance > mFadeDistance) + { + alpha_factor = llmax(0.f, 1.f - (mLastDistance - mFadeDistance)/mFadeRange); + text_color.mV[3] = text_color.mV[3]*alpha_factor; + } + } + if (text_color.mV[3] < 0.01f) + { + return; + } + shadow_color.mV[3] = text_color.mV[3]; + + mOffsetY = lltrunc(mHeight * ((mVertAlignment == ALIGN_VERT_CENTER) ? 0.5f : 1.f)); + + // *TODO: make this a per-text setting + LLColor4 bg_color = LLUIColorTable::instance().getColor("NameTagBackground"); + bg_color.setAlpha(gSavedSettings.getF32("ChatBubbleOpacity") * alpha_factor); + + // scale screen size of borders down + //RN: for now, text on hud objects is never occluded + + LLVector3 x_pixel_vec; + LLVector3 y_pixel_vec; + + LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec); + + LLVector3 width_vec = mWidth * x_pixel_vec; + LLVector3 height_vec = mHeight * y_pixel_vec; + + mRadius = (width_vec + height_vec).magVec() * 0.5f; + + LLCoordGL screen_pos; + LLViewerCamera::getInstance()->projectPosAgentToScreen(mPositionAgent, screen_pos, false); + + LLVector2 screen_offset = updateScreenPos(mPositionOffset); + + LLVector3 render_position = mPositionAgent + + (x_pixel_vec * screen_offset.mV[VX]) + + (y_pixel_vec * screen_offset.mV[VY]); + + LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE); + LLRect screen_rect; + screen_rect.setCenterAndSize(0, static_cast<S32>(lltrunc(-mHeight / 2 + mOffsetY)), static_cast<S32>(lltrunc(mWidth)), static_cast<S32>(lltrunc(mHeight))); + mRoundedRectImgp->draw3D(render_position, x_pixel_vec, y_pixel_vec, screen_rect, bg_color); + if (mLabelSegments.size()) + { + LLRect label_top_rect = screen_rect; + const S32 label_height = ll_round((mFontp->getLineHeight() * (F32)mLabelSegments.size() + (VERTICAL_PADDING / 3.f))); + label_top_rect.mBottom = label_top_rect.mTop - label_height; + LLColor4 label_top_color = text_color; + label_top_color.mV[VALPHA] = gSavedSettings.getF32("ChatBubbleOpacity") * alpha_factor; + + mRoundedRectTopImgp->draw3D(render_position, x_pixel_vec, y_pixel_vec, label_top_rect, label_top_color); + } + + F32 y_offset = (F32)mOffsetY; + + // Render label + { + for(std::vector<LLHUDTextSegment>::iterator segment_iter = mLabelSegments.begin(); + segment_iter != mLabelSegments.end(); ++segment_iter ) + { + // Label segments use default font + const LLFontGL* fontp = (segment_iter->mStyle == LLFontGL::BOLD) ? mBoldFontp : mFontp; + y_offset -= fontp->getLineHeight(); + + F32 x_offset; + if (mTextAlignment == ALIGN_TEXT_CENTER) + { + x_offset = -0.5f*segment_iter->getWidth(fontp); + } + else // ALIGN_LEFT + { + x_offset = -0.5f * mWidth + (HORIZONTAL_PADDING / 2.f); + } + + LLColor4 label_color(0.f, 0.f, 0.f, 1.f); + label_color.mV[VALPHA] = alpha_factor; + hud_render_text(segment_iter->getText(), render_position, *fontp, segment_iter->mStyle, LLFontGL::NO_SHADOW, x_offset, y_offset, label_color, false); + } + } + + // Render text + { + // -1 mMaxLines means unlimited lines. + S32 start_segment; + S32 max_lines = getMaxLines(); + + if (max_lines < 0) + { + start_segment = 0; + } + else + { + start_segment = llmax((S32)0, (S32)mTextSegments.size() - max_lines); + } + + for (std::vector<LLHUDTextSegment>::iterator segment_iter = mTextSegments.begin() + start_segment; + segment_iter != mTextSegments.end(); ++segment_iter ) + { + const LLFontGL* fontp = segment_iter->mFont; + y_offset -= fontp->getLineHeight(); + y_offset -= LINE_PADDING; + + U8 style = segment_iter->mStyle; + LLFontGL::ShadowType shadow = LLFontGL::DROP_SHADOW; + + F32 x_offset; + if (mTextAlignment== ALIGN_TEXT_CENTER) + { + x_offset = -0.5f*segment_iter->getWidth(fontp); + } + else // ALIGN_LEFT + { + x_offset = -0.5f * mWidth + (HORIZONTAL_PADDING / 2.f); + + // *HACK + x_offset += 1; + } + + text_color = segment_iter->mColor; + text_color.mV[VALPHA] *= alpha_factor; + + hud_render_text(segment_iter->getText(), render_position, *fontp, style, shadow, x_offset, y_offset, text_color, false); + } + } + /// Reset the default color to white. The renderer expects this to be the default. + gGL.color4f(1.0f, 1.0f, 1.0f, 1.0f); + if (for_select) + { + gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE); + } +} + +void LLHUDNameTag::setString(const std::string &text_utf8) +{ + mTextSegments.clear(); + addLine(text_utf8, mColor); +} + +void LLHUDNameTag::clearString() +{ + mTextSegments.clear(); +} + + +void LLHUDNameTag::addLine(const std::string &text_utf8, + const LLColor4& color, + const LLFontGL::StyleFlags style, + const LLFontGL* font, + const bool use_ellipses, + F32 max_pixels) +{ + LLWString wline = utf8str_to_wstring(text_utf8); + if (!wline.empty()) + { + // use default font for segment if custom font not specified + if (!font) + { + font = mFontp; + } + typedef boost::tokenizer<boost::char_separator<llwchar>, LLWString::const_iterator, LLWString > tokenizer; + LLWString seps(utf8str_to_wstring("\r\n")); + boost::char_separator<llwchar> sep(seps.c_str()); + + tokenizer tokens(wline, sep); + tokenizer::iterator iter = tokens.begin(); + + max_pixels = llmin(max_pixels, NAMETAG_MAX_WIDTH); + while (iter != tokens.end()) + { + U32 line_length = 0; + if (use_ellipses) + { + // "QualityAssuranceAssuresQuality1" will end up like "QualityAssuranceAssuresQual..." + // "QualityAssuranceAssuresQuality QualityAssuranceAssuresQuality" will end up like "QualityAssuranceAssuresQual..." + // "QualityAssurance AssuresQuality1" will end up as "QualityAssurance AssuresQua..." because we are enforcing single line + do + { + S32 segment_length = font->maxDrawableChars(iter->substr(line_length).c_str(), max_pixels, wline.length(), LLFontGL::ANYWHERE); + if (segment_length + line_length < wline.length()) // since we only draw one string, line_length should be 0 + { + // token does does not fit into signle line, need to draw "...". + // Use four dots for ellipsis width to generate padding + const LLWString dots_pad(utf8str_to_wstring(std::string("...."))); + S32 elipses_width = font->getWidthF32(dots_pad.c_str()); + // truncated string length + segment_length = font->maxDrawableChars(iter->substr(line_length).c_str(), max_pixels - elipses_width, wline.length(), LLFontGL::ANYWHERE); + const LLWString dots(utf8str_to_wstring(std::string("..."))); + LLHUDTextSegment segment(iter->substr(line_length, segment_length) + dots, style, color, font); + mTextSegments.push_back(segment); + break; // consider it to be complete + } + else + { + // token fits fully into string + LLHUDTextSegment segment(iter->substr(line_length, segment_length), style, color, font); + mTextSegments.push_back(segment); + line_length += segment_length; + } + } while (line_length != iter->size()); + } + else + { + // "QualityAssuranceAssuresQuality 1" will be split into two lines "QualityAssuranceAssuresQualit" and "y 1" + // "QualityAssurance AssuresQuality 1" will be split into two lines "QualityAssurance" and "AssuresQuality" + do + { + S32 segment_length = font->maxDrawableChars(iter->substr(line_length).c_str(), max_pixels, wline.length(), LLFontGL::WORD_BOUNDARY_IF_POSSIBLE); + LLHUDTextSegment segment(iter->substr(line_length, segment_length), style, color, font); + mTextSegments.push_back(segment); + line_length += segment_length; + } while (line_length != iter->size()); + } + ++iter; + } + } +} + +void LLHUDNameTag::setLabel(const std::string &label_utf8) +{ + mLabelSegments.clear(); + addLabel(label_utf8); +} + +void LLHUDNameTag::addLabel(const std::string& label_utf8, F32 max_pixels) +{ + LLWString wstr = utf8string_to_wstring(label_utf8); + if (!wstr.empty()) + { + LLWString seps(utf8str_to_wstring("\r\n")); + LLWString empty; + + typedef boost::tokenizer<boost::char_separator<llwchar>, LLWString::const_iterator, LLWString > tokenizer; + boost::char_separator<llwchar> sep(seps.c_str(), empty.c_str(), boost::keep_empty_tokens); + + tokenizer tokens(wstr, sep); + tokenizer::iterator iter = tokens.begin(); + + max_pixels = llmin(max_pixels, NAMETAG_MAX_WIDTH); + + while (iter != tokens.end()) + { + U32 line_length = 0; + do + { + S32 segment_length = mFontp->maxDrawableChars(iter->substr(line_length).c_str(), + max_pixels, wstr.length(), LLFontGL::WORD_BOUNDARY_IF_POSSIBLE); + LLHUDTextSegment segment(iter->substr(line_length, segment_length), LLFontGL::NORMAL, mColor, mFontp); + mLabelSegments.push_back(segment); + line_length += segment_length; + } + while (line_length != iter->size()); + ++iter; + } + } +} + +void LLHUDNameTag::setZCompare(const bool zcompare) +{ + mZCompare = zcompare; +} + +void LLHUDNameTag::setFont(const LLFontGL* font) +{ + mFontp = font; +} + + +void LLHUDNameTag::setColor(const LLColor4 &color) +{ + mColor = color; + for (std::vector<LLHUDTextSegment>::iterator segment_iter = mTextSegments.begin(); + segment_iter != mTextSegments.end(); ++segment_iter ) + { + segment_iter->mColor = color; + } +} + +void LLHUDNameTag::setAlpha(F32 alpha) +{ + mColor.mV[VALPHA] = alpha; + for (std::vector<LLHUDTextSegment>::iterator segment_iter = mTextSegments.begin(); + segment_iter != mTextSegments.end(); ++segment_iter ) + { + segment_iter->mColor.mV[VALPHA] = alpha; + } +} + + +void LLHUDNameTag::setDoFade(const bool do_fade) +{ + mDoFade = do_fade; +} + +void LLHUDNameTag::updateVisibility() +{ + if (mSourceObject) + { + mSourceObject->updateText(); + } + + mPositionAgent = gAgent.getPosAgentFromGlobal(mPositionGlobal); + + if (!mSourceObject) + { + //LL_WARNS() << "LLHUDNameTag::updateScreenPos -- mSourceObject is NULL!" << LL_ENDL; + mVisible = true; + sVisibleTextObjects.push_back(LLPointer<LLHUDNameTag> (this)); + return; + } + + // Not visible if parent object is dead + if (mSourceObject->isDead()) + { + mVisible = false; + return; + } + + // push text towards camera by radius of object, but not past camera + LLVector3 vec_from_camera = mPositionAgent - LLViewerCamera::getInstance()->getOrigin(); + LLVector3 dir_from_camera = vec_from_camera; + dir_from_camera.normVec(); + + if (dir_from_camera * LLViewerCamera::getInstance()->getAtAxis() <= 0.f) + { //text is behind camera, don't render + mVisible = false; + return; + } + + if (vec_from_camera * LLViewerCamera::getInstance()->getAtAxis() <= LLViewerCamera::getInstance()->getNear() + 0.1f + mSourceObject->getVObjRadius()) + { + mPositionAgent = LLViewerCamera::getInstance()->getOrigin() + vec_from_camera * ((LLViewerCamera::getInstance()->getNear() + 0.1f) / (vec_from_camera * LLViewerCamera::getInstance()->getAtAxis())); + } + else + { + mPositionAgent -= dir_from_camera * mSourceObject->getVObjRadius(); + } + + mLastDistance = (mPositionAgent - LLViewerCamera::getInstance()->getOrigin()).magVec(); + + if (mLOD >= 3 || !mTextSegments.size() || (mDoFade && (mLastDistance > mFadeDistance + mFadeRange))) + { + mVisible = false; + return; + } + + LLVector3 x_pixel_vec; + LLVector3 y_pixel_vec; + + LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec); + + LLVector3 render_position = mPositionAgent + + (x_pixel_vec * mPositionOffset.mV[VX]) + + (y_pixel_vec * mPositionOffset.mV[VY]); + + mOffscreen = false; + if (!LLViewerCamera::getInstance()->sphereInFrustum(render_position, mRadius)) + { + if (!mVisibleOffScreen) + { + mVisible = false; + return; + } + else + { + mOffscreen = true; + } + } + + mVisible = true; + sVisibleTextObjects.push_back(LLPointer<LLHUDNameTag> (this)); +} + +LLVector2 LLHUDNameTag::updateScreenPos(LLVector2 &offset) +{ + LLCoordGL screen_pos; + LLVector2 screen_pos_vec; + LLVector3 x_pixel_vec; + LLVector3 y_pixel_vec; + LLViewerCamera::getInstance()->getPixelVectors(mPositionAgent, y_pixel_vec, x_pixel_vec); + LLVector3 world_pos = mPositionAgent + (offset.mV[VX] * x_pixel_vec) + (offset.mV[VY] * y_pixel_vec); + if (!LLViewerCamera::getInstance()->projectPosAgentToScreen(world_pos, screen_pos, false) && mVisibleOffScreen) + { + // bubble off-screen, so find a spot for it along screen edge + LLViewerCamera::getInstance()->projectPosAgentToScreenEdge(world_pos, screen_pos); + } + + screen_pos_vec.setVec((F32)screen_pos.mX, (F32)screen_pos.mY); + + LLRect world_rect = gViewerWindow->getWorldViewRectScaled(); + S32 bottom = world_rect.mBottom + STATUS_BAR_HEIGHT; + + LLVector2 screen_center; + screen_center.mV[VX] = llclamp((F32)screen_pos_vec.mV[VX], (F32)world_rect.mLeft + mWidth * 0.5f, (F32)world_rect.mRight - mWidth * 0.5f); + + if(mVertAlignment == ALIGN_VERT_TOP) + { + screen_center.mV[VY] = llclamp((F32)screen_pos_vec.mV[VY], + (F32)bottom, + (F32)world_rect.mTop - mHeight - (F32)MENU_BAR_HEIGHT); + mSoftScreenRect.setLeftTopAndSize(screen_center.mV[VX] - (mWidth + BUFFER_SIZE) * 0.5f, + screen_center.mV[VY] + (mHeight + BUFFER_SIZE), mWidth + BUFFER_SIZE, mHeight + BUFFER_SIZE); + } + else + { + screen_center.mV[VY] = llclamp((F32)screen_pos_vec.mV[VY], + (F32)bottom + mHeight * 0.5f, + (F32)world_rect.mTop - mHeight * 0.5f - (F32)MENU_BAR_HEIGHT); + mSoftScreenRect.setCenterAndSize(screen_center.mV[VX], screen_center.mV[VY], mWidth + BUFFER_SIZE, mHeight + BUFFER_SIZE); + } + + return offset + (screen_center - LLVector2((F32)screen_pos.mX, (F32)screen_pos.mY)); +} + +void LLHUDNameTag::updateSize() +{ + F32 height = 0.f; + F32 width = 0.f; + + S32 max_lines = getMaxLines(); + //S32 lines = (max_lines < 0) ? (S32)mTextSegments.size() : llmin((S32)mTextSegments.size(), max_lines); + //F32 height = (F32)mFontp->getLineHeight() * (lines + mLabelSegments.size()); + + S32 start_segment; + if (max_lines < 0) start_segment = 0; + else start_segment = llmax((S32)0, (S32)mTextSegments.size() - max_lines); + + std::vector<LLHUDTextSegment>::iterator iter = mTextSegments.begin() + start_segment; + while (iter != mTextSegments.end()) + { + const LLFontGL* fontp = iter->mFont; + height += fontp->getLineHeight(); + height += LINE_PADDING; + width = llmax(width, llmin(iter->getWidth(fontp), NAMETAG_MAX_WIDTH)); + ++iter; + } + + // Don't want line spacing under the last line + if (height > 0.f) + { + height -= LINE_PADDING; + } + + iter = mLabelSegments.begin(); + while (iter != mLabelSegments.end()) + { + height += mFontp->getLineHeight(); + width = llmax(width, llmin(iter->getWidth(mFontp), NAMETAG_MAX_WIDTH)); + ++iter; + } + + if (width == 0.f) + { + return; + } + + width += HORIZONTAL_PADDING; + height += VERTICAL_PADDING; + + // *TODO: Could do a timer-based resize here + //mWidth = llmax(width, lerp(mWidth, (F32)width, u)); + //mHeight = llmax(height, lerp(mHeight, (F32)height, u)); + mWidth = width; + mHeight = height; +} + +void LLHUDNameTag::updateAll() +{ + LL_PROFILE_ZONE_SCOPED_CATEGORY_UI; + // iterate over all text objects, calculate their restoration forces, + // and add them to the visible set if they are on screen and close enough + sVisibleTextObjects.clear(); + + TextObjectIterator text_it; + for (text_it = sTextObjects.begin(); text_it != sTextObjects.end(); ++text_it) + { + LLHUDNameTag* textp = (*text_it); + textp->mTargetPositionOffset.clearVec(); + textp->updateSize(); + textp->updateVisibility(); + } + + // sort back to front for rendering purposes + std::sort(sVisibleTextObjects.begin(), sVisibleTextObjects.end(), llhudnametag_further_away()); + + // iterate from front to back, and set LOD based on current screen coverage + F32 screen_area = (F32)(gViewerWindow->getWindowWidthScaled() * gViewerWindow->getWindowHeightScaled()); + F32 current_screen_area = 0.f; + std::vector<LLPointer<LLHUDNameTag> >::reverse_iterator r_it; + for (r_it = sVisibleTextObjects.rbegin(); r_it != sVisibleTextObjects.rend(); ++r_it) + { + LLHUDNameTag* textp = (*r_it); + if (current_screen_area / screen_area > LOD_2_SCREEN_COVERAGE) + { + textp->setLOD(3); + } + else if (current_screen_area / screen_area > LOD_1_SCREEN_COVERAGE) + { + textp->setLOD(2); + } + else if (current_screen_area / screen_area > LOD_0_SCREEN_COVERAGE) + { + textp->setLOD(1); + } + else + { + textp->setLOD(0); + } + textp->updateSize(); + // find on-screen position and initialize collision rectangle + textp->mTargetPositionOffset = textp->updateScreenPos(LLVector2::zero); + current_screen_area += (F32)(textp->mSoftScreenRect.getWidth() * textp->mSoftScreenRect.getHeight()); + } + + LLTrace::CountStatHandle<>* camera_vel_stat = LLViewerCamera::getVelocityStat(); + F32 camera_vel = LLTrace::get_frame_recording().getLastRecording().getPerSec(*camera_vel_stat); + if (camera_vel > MAX_STABLE_CAMERA_VELOCITY) + { + return; + } + + VisibleTextObjectIterator src_it; + + for (S32 i = 0; i < NUM_OVERLAP_ITERATIONS; i++) + { + for (src_it = sVisibleTextObjects.begin(); src_it != sVisibleTextObjects.end(); ++src_it) + { + LLHUDNameTag* src_textp = (*src_it); + + VisibleTextObjectIterator dst_it = src_it; + ++dst_it; + for (; dst_it != sVisibleTextObjects.end(); ++dst_it) + { + LLHUDNameTag* dst_textp = (*dst_it); + + if (src_textp->mSoftScreenRect.overlaps(dst_textp->mSoftScreenRect)) + { + LLRectf intersect_rect = src_textp->mSoftScreenRect; + intersect_rect.intersectWith(dst_textp->mSoftScreenRect); + intersect_rect.stretch(-BUFFER_SIZE * 0.5f); + + F32 src_center_x = src_textp->mSoftScreenRect.getCenterX(); + F32 src_center_y = src_textp->mSoftScreenRect.getCenterY(); + F32 dst_center_x = dst_textp->mSoftScreenRect.getCenterX(); + F32 dst_center_y = dst_textp->mSoftScreenRect.getCenterY(); + F32 intersect_center_x = intersect_rect.getCenterX(); + F32 intersect_center_y = intersect_rect.getCenterY(); + LLVector2 force = lerp(LLVector2(dst_center_x - intersect_center_x, dst_center_y - intersect_center_y), + LLVector2(intersect_center_x - src_center_x, intersect_center_y - src_center_y), + 0.5f); + force.setVec(dst_center_x - src_center_x, dst_center_y - src_center_y); + force.normVec(); + + LLVector2 src_force = -1.f * force; + LLVector2 dst_force = force; + + LLVector2 force_strength; + F32 src_mult = dst_textp->mMass / (dst_textp->mMass + src_textp->mMass); + F32 dst_mult = 1.f - src_mult; + F32 src_aspect_ratio = src_textp->mSoftScreenRect.getWidth() / src_textp->mSoftScreenRect.getHeight(); + F32 dst_aspect_ratio = dst_textp->mSoftScreenRect.getWidth() / dst_textp->mSoftScreenRect.getHeight(); + src_force.mV[VY] *= src_aspect_ratio; + src_force.normVec(); + dst_force.mV[VY] *= dst_aspect_ratio; + dst_force.normVec(); + + src_force.mV[VX] *= llmin(intersect_rect.getWidth() * src_mult, intersect_rect.getHeight() * SPRING_STRENGTH); + src_force.mV[VY] *= llmin(intersect_rect.getHeight() * src_mult, intersect_rect.getWidth() * SPRING_STRENGTH); + dst_force.mV[VX] *= llmin(intersect_rect.getWidth() * dst_mult, intersect_rect.getHeight() * SPRING_STRENGTH); + dst_force.mV[VY] *= llmin(intersect_rect.getHeight() * dst_mult, intersect_rect.getWidth() * SPRING_STRENGTH); + + src_textp->mTargetPositionOffset += src_force; + dst_textp->mTargetPositionOffset += dst_force; + src_textp->mTargetPositionOffset = src_textp->updateScreenPos(src_textp->mTargetPositionOffset); + dst_textp->mTargetPositionOffset = dst_textp->updateScreenPos(dst_textp->mTargetPositionOffset); + } + } + } + } + + VisibleTextObjectIterator this_object_it; + for (this_object_it = sVisibleTextObjects.begin(); this_object_it != sVisibleTextObjects.end(); ++this_object_it) + { + (*this_object_it)->mPositionOffset = lerp((*this_object_it)->mPositionOffset, (*this_object_it)->mTargetPositionOffset, LLSmoothInterpolation::getInterpolant(POSITION_DAMPING_TC)); + } +} + +void LLHUDNameTag::setLOD(S32 lod) +{ + mLOD = lod; + //RN: uncomment this to visualize LOD levels + //std::string label = llformat("%d", lod); + //setLabel(label); +} + +S32 LLHUDNameTag::getMaxLines() +{ + switch(mLOD) + { + case 0: + return mMaxLines; + case 1: + return mMaxLines > 0 ? mMaxLines / 2 : 5; + case 2: + return mMaxLines > 0 ? mMaxLines / 3 : 2; + default: + // label only + return 0; + } +} + +void LLHUDNameTag::markDead() +{ + sTextObjects.erase(LLPointer<LLHUDNameTag>(this)); + LLHUDObject::markDead(); +} + +void LLHUDNameTag::shiftAll(const LLVector3& offset) +{ + TextObjectIterator text_it; + for (text_it = sTextObjects.begin(); text_it != sTextObjects.end(); ++text_it) + { + LLHUDNameTag *textp = text_it->get(); + textp->shift(offset); + } +} + +void LLHUDNameTag::shift(const LLVector3& offset) +{ + mPositionAgent += offset; +} + +F32 LLHUDNameTag::getWorldHeight() const +{ + const LLViewerCamera* camera = LLViewerCamera::getInstance(); + F32 height_meters = mLastDistance * (F32)tan(camera->getView() / 2.f); + F32 height_pixels = camera->getViewHeightInPixels() / 2.f; + F32 meters_per_pixel = height_meters / height_pixels; + return mHeight * meters_per_pixel * gViewerWindow->getDisplayScale().mV[VY]; +} + +//static +void LLHUDNameTag::addPickable(std::set<LLViewerObject*> &pick_list) +{ + //this might put an object on the pick list a second time, overriding it's mGLName, which is ok + // *FIX: we should probably cull against pick frustum + VisibleTextObjectIterator text_it; + for (text_it = sVisibleTextObjects.begin(); text_it != sVisibleTextObjects.end(); ++text_it) + { + pick_list.insert((*text_it)->mSourceObject); + } +} + +//static +// called when UI scale changes, to flush font width caches +void LLHUDNameTag::reshape() +{ + TextObjectIterator text_it; + for (text_it = sTextObjects.begin(); text_it != sTextObjects.end(); ++text_it) + { + LLHUDNameTag* textp = (*text_it); + std::vector<LLHUDTextSegment>::iterator segment_iter; + for (segment_iter = textp->mTextSegments.begin(); + segment_iter != textp->mTextSegments.end(); ++segment_iter ) + { + segment_iter->clearFontWidthMap(); + } + for(segment_iter = textp->mLabelSegments.begin(); + segment_iter != textp->mLabelSegments.end(); ++segment_iter ) + { + segment_iter->clearFontWidthMap(); + } + } +} + +//============================================================================ + +F32 LLHUDNameTag::LLHUDTextSegment::getWidth(const LLFontGL* font) +{ + std::map<const LLFontGL*, F32>::iterator iter = mFontWidthMap.find(font); + if (iter != mFontWidthMap.end()) + { + return iter->second; + } + else + { + F32 width = font->getWidthF32(mText.c_str()); + mFontWidthMap[font] = width; + return width; + } +} |