Singularity-Viewer/SingularityViewer
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
665df2fe4e596edc1cb3cc285acf33b7c985c727
SingularityViewer/indra/newview/llhudnametag.cpp
Shyotl 736696ac36 Track glEnable states via static refs instead of map lookups. 
Sync light state, bound shader, and various gl context states similarly to render matrices.
Texture handles now refcounted, as multiple viewer textures could ref the same handle (cubemaps do this)
Clean up gl extension loading a bit. Not necessary, but only look for ARB variants if not included in current core version. Removed unused extensions.
Use core shader api if supported, else use ARB. (FN signatures are identical. Just doing some pointer substitution to ARB if not core.)
Attempt at improving VBO update batching. Subdata updates better batched to gether per-frame.
There's probably other stuff I forgot that is in this changeset, too.

Todo: Fix lightstate assertion when toggling fullscreen with shaders off.
2018-11-19 00:37:48 -06:00

1071 lines
30 KiB
C++
Raw Blame History

/**
* @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 "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>
// [RLVa:KB]
#include "rlvhandler.h"
// [/RLVa:KB]
const F32 SPRING_STRENGTH = 0.7f;
const F32 RESTORATION_SPRING_TIME_CONSTANT = 0.1f;
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 F32 MIN_EDGE_OVERLAP = 3.f;
const F32 HUD_TEXT_MAX_WIDTH = 190.f;
const F32 HUD_TEXT_MAX_WIDTH_NO_BUBBLE = 1000.f;
const F32 RESIZE_TIME = 0.f;
const S32 NUM_OVERLAP_ITERATIONS = 10;
const F32 NEIGHBOR_FORCE_FRACTION = 1.f;
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 ;
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);
mBubbleImage = LLUI::getUIImage("Rounded_Rect");
}
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
//RN: for now, text on hud objects is never occluded
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]);
//if (mUseBubble)
{
LLVector3 bg_pos = render_position
+ (F32)mOffsetY * y_pixel_vec
- (width_vec / 2.f)
- (height_vec);
//LLUI::translate(bg_pos.mV[VX], bg_pos.mV[VY], bg_pos.mV[VZ]);
LLVector3 v[] =
{
bg_pos,
bg_pos + width_vec,
bg_pos + width_vec + height_vec,
bg_pos + height_vec,
};
if (debug_render)
{
gGL.begin(LLRender::LINE_STRIP);
gGL.vertex3fv(v[0].mV);
gGL.vertex3fv(v[1].mV);
gGL.vertex3fv(v[2].mV);
gGL.vertex3fv(v[3].mV);
gGL.vertex3fv(v[0].mV);
gGL.vertex3fv(v[2].mV);
gGL.end();
}
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()
{
if (sDisplayText)
{
LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
renderText(FALSE);
}
}
void LLHUDNameTag::renderForSelect()
{
LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
renderText(TRUE);
}
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<GL_BLEND> gls_blend(for_select ? FALSE : TRUE);
LLGLState<GL_ALPHA_TEST> gls_alpha(for_select ? FALSE : TRUE);
gGL.setSceneBlendType(LLRender::BT_ALPHA); //Workaround avoiding inheriting stale blendstate from... something.
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));
LLUIImagePtr imagep = mBubbleImage;
// *TODO: make this a per-text setting
static const LLCachedControl<LLColor4> background_chat_color("BackgroundChatColor", LLColor4(0,0,0,1.f));
static const LLCachedControl<F32> chat_bubble_opacity("ChatBubbleOpacity", .5);
LLColor4 bg_color = background_chat_color;
bg_color.setAlpha(chat_bubble_opacity.get() * 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)));
imagep->draw3D(render_position, x_pixel_vec, y_pixel_vec, screen_rect, bg_color);
if (mLabelSegments.size())
{
LLUIImagePtr rect_top_image = LLUI::getUIImage("Rounded_Rect_Top");
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] = chat_bubble_opacity * alpha_factor;
rect_top_image->draw3D(render_position, x_pixel_vec, y_pixel_vec, label_top_rect, label_top_color);
}
BOOL outside_width = llabs(mPositionOffset.mV[VX]) > mWidth * 0.5f;
BOOL outside_height = llabs(mPositionOffset.mV[VY] + (mVertAlignment == ALIGN_VERT_TOP ? mHeight * 0.5f : 0.f)) > mHeight * (mVertAlignment == ALIGN_VERT_TOP ? mHeight * 0.75f : 0.5f);
// draw line segments pointing to parent object
if (!mOffscreen && (outside_width || outside_height))
{
LLUI::pushMatrix();
{
LLVector3 bg_pos = render_position
+ (F32)mOffsetY * y_pixel_vec
- (width_vec / 2.f)
- (height_vec);
LLUI::translate(bg_pos.mV[VX], bg_pos.mV[VY], bg_pos.mV[VZ]);
/*LLUI::pushMatrix();
{
gGL.color4fv(bg_color.mV);
LLVector3 target_pos = -1.f * (mPositionOffset.mV[VX] * x_pixel_vec + mPositionOffset.mV[VY] * y_pixel_vec);
target_pos += (width_vec / 2.f);
target_pos += mVertAlignment == ALIGN_VERT_CENTER ? (height_vec * 0.5f) : LLVector3::zero;
target_pos -= 3.f * x_pixel_vec;
target_pos -= 6.f * y_pixel_vec;
LLUI::translate(target_pos.mV[VX], target_pos.mV[VY], target_pos.mV[VZ]);
gl_segmented_rect_3d_tex(border_scale_vec, 3.f * x_pixel_vec, 3.f * y_pixel_vec, 6.f * x_pixel_vec, 6.f * y_pixel_vec);
}
LLUI::popMatrix();*/
gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
LLGLDepthTest gls_depth(mZCompare ? GL_TRUE : GL_FALSE, GL_FALSE);
LLVector3 box_center_offset;
box_center_offset = (width_vec * 0.5f) + (height_vec * 0.5f);
LLUI::translate(box_center_offset.mV[VX], box_center_offset.mV[VY], box_center_offset.mV[VZ]);
gGL.color4fv(bg_color.mV);
LLUI::setLineWidth(2.0);
gGL.begin(LLRender::LINES);
{
if (outside_width)
{
LLVector3 vert;
// draw line in x then y
if (mPositionOffset.mV[VX] < 0.f)
{
// start at right edge
vert = width_vec * 0.5f;
gGL.vertex3fv(vert.mV);
}
else
{
// start at left edge
vert = width_vec * -0.5f;
gGL.vertex3fv(vert.mV);
}
vert = -mPositionOffset.mV[VX] * x_pixel_vec;
gGL.vertex3fv(vert.mV);
gGL.vertex3fv(vert.mV);
vert -= mPositionOffset.mV[VY] * y_pixel_vec;
vert -= ((mVertAlignment == ALIGN_VERT_TOP) ? (height_vec * 0.5f) : LLVector3::zero);
gGL.vertex3fv(vert.mV);
}
else
{
LLVector3 vert;
// draw line in y then x
if (mPositionOffset.mV[VY] < 0.f)
{
// start at top edge
vert = (height_vec * 0.5f) - (mPositionOffset.mV[VX] * x_pixel_vec);
gGL.vertex3fv(vert.mV);
}
else
{
// start at bottom edge
vert = (height_vec * -0.5f) - (mPositionOffset.mV[VX] * x_pixel_vec);
gGL.vertex3fv(vert.mV);
}
vert = -mPositionOffset.mV[VY] * y_pixel_vec - mPositionOffset.mV[VX] * x_pixel_vec;
vert -= ((mVertAlignment == ALIGN_VERT_TOP) ? (height_vec * 0.5f) : LLVector3::zero);
gGL.vertex3fv(vert.mV);
}
}
gGL.end();
LLUI::setLineWidth(1.0);
}
LLUI::popMatrix();
}
F32 y_offset = (F32)mOffsetY;
// Render label
{
//gGL.getTexUnit(0)->setTextureBlendType(LLTexUnit::TB_MULT);
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)
{
//[RLVa:KB] - Checked: 2010-03-02 (RLVa-1.2.0a) | Modified: RLVa-1.0.0f
// NOTE: setString() is only called for debug beacons and the floating name tags (which we don't want to censor
// because you'd see "(Region hidden) LastName" if you happen to go to a sim who's name is your first name :p
//Disabled because logic in LLVOAvatar::idleUpdateNameTag should be handling this.
/*std::string text(text_utf8);
if (rlv_handler_t::isEnabled())
{
if (gRlvHandler.canShowHoverText(mSourceObject))
{
if (gRlvHandler.hasBehaviour(RLV_BHVR_SHOWNAMES))
RlvUtil::filterNames(text);
}
else
{
text = "";
}
}*/
//[/RLVa:KB]
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)
{
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();
while (iter != tokens.end())
{
U32 line_length = 0;
do
{
F32 max_pixels = HUD_TEXT_MAX_WIDTH;
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)
{
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();
while (iter != tokens.end())
{
U32 line_length = 0;
do
{
S32 segment_length = mFontp->maxDrawableChars(iter->substr(line_length).c_str(),
HUD_TEXT_MAX_WIDTH, 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), HUD_TEXT_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), HUD_TEXT_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()
{
// 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 (textp->mUseBubble)
// {
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());
// }
}
LLStat* camera_vel_stat = LLViewerCamera::getInstance()->getVelocityStat();
F32 camera_vel = camera_vel_stat->getCurrent();
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);
// if (!src_textp->mUseBubble)
// {
// continue;
// }
VisibleTextObjectIterator dst_it = src_it;
++dst_it;
for (; dst_it != sVisibleTextObjects.end(); ++dst_it)
{
LLHUDNameTag* dst_textp = (*dst_it);
// if (!dst_textp->mUseBubble)
// {
// continue;
// }
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)
{
// if (!(*this_object_it)->mUseBubble)
// {
// continue;
// }
(*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;
}
//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)
{
// if (!(*text_it)->mUseBubble)
// {
// continue;
// }
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;
}
}
Reference in New Issue View Git Blame Copy Permalink