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Diffstat (limited to 'indra/newview/llhudnametag.cpp')
| -rw-r--r-- | indra/newview/llhudnametag.cpp | 1066 |
1 files changed, 1066 insertions, 0 deletions
diff --git a/indra/newview/llhudnametag.cpp b/indra/newview/llhudnametag.cpp new file mode 100644 index 0000000000..fc758569e4 --- /dev/null +++ b/indra/newview/llhudnametag.cpp @@ -0,0 +1,1066 @@ +/** + * @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> + + +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); +} + +LLHUDNameTag::~LLHUDNameTag() +{ +} + + +BOOL LLHUDNameTag::lineSegmentIntersect(const LLVector3& start, const LLVector3& end, LLVector3& 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)); + + // 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; + + LLCoordGL screen_pos; + LLViewerCamera::getInstance()->projectPosAgentToScreen(mPositionAgent, screen_pos, FALSE); + + LLVector2 screen_offset; + screen_offset = updateScreenPos(mPositionOffset); + + LLVector3 render_position = mPositionAgent + + (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(); + } + + LLVector3 dir = end-start; + F32 t = 0.f; + + if (LLTriangleRayIntersect(v[0], v[1], v[2], start, dir, NULL, NULL, &t, FALSE) || + LLTriangleRayIntersect(v[2], v[3], v[0], start, dir, NULL, NULL, &t, FALSE) ) + { + if (t <= 1.f) + { + intersection = start + dir*t; + 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 gls_blend(GL_BLEND, for_select ? FALSE : TRUE); + LLGLState gls_alpha(GL_ALPHA_TEST, for_select ? FALSE : TRUE); + + 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: cache this image + LLUIImagePtr imagep = LLUI::getUIImage("Rounded_Rect"); + + // *TODO: make this a per-text setting + LLColor4 bg_color = LLUIColorTable::instance().getColor("NameTagBackground"); + bg_color.setAlpha(gSavedSettings.getF32("ChatBubbleOpacity") * alpha_factor); + + // maybe a no-op? + //const S32 border_height = 16; + //const S32 border_width = 16; + const S32 border_height = 8; + const S32 border_width = 8; + + // *TODO move this into helper function + F32 border_scale = 1.f; + + if (border_height * 2 > mHeight) + { + border_scale = (F32)mHeight / ((F32)border_height * 2.f); + } + if (border_width * 2 > mWidth) + { + border_scale = llmin(border_scale, (F32)mWidth / ((F32)border_width * 2.f)); + } + + // 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); + + LLVector2 border_scale_vec((F32)border_width / (F32)imagep->getTextureWidth(), (F32)border_height / (F32)imagep->getTextureHeight()); + LLVector3 width_vec = mWidth * x_pixel_vec; + LLVector3 height_vec = mHeight * y_pixel_vec; + LLVector3 scaled_border_width = (F32)llfloor(border_scale * (F32)border_width) * x_pixel_vec; + LLVector3 scaled_border_height = (F32)llfloor(border_scale * (F32)border_height) * y_pixel_vec; + + mRadius = (width_vec + height_vec).magVec() * 0.5f; + + LLCoordGL screen_pos; + LLViewerCamera::getInstance()->projectPosAgentToScreen(mPositionAgent, screen_pos, FALSE); + + LLVector2 screen_offset; +// if (!mUseBubble) +// { +// screen_offset = mPositionOffset; +// } +// else +// { + screen_offset = updateScreenPos(mPositionOffset); +// } + + LLVector3 render_position = mPositionAgent + + (x_pixel_vec * screen_offset.mV[VX]) + + (y_pixel_vec * screen_offset.mV[VY]); + +// if (mUseBubble) + { + LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE); + 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]); + + if (for_select) + { + gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE); + S32 name = mSourceObject->mGLName; + LLColor4U coloru((U8)(name >> 16), (U8)(name >> 8), (U8)name); + gGL.color4ubv(coloru.mV); + gl_segmented_rect_3d_tex(border_scale_vec, scaled_border_width, scaled_border_height, width_vec, height_vec); + LLUI::popMatrix(); + return; + } + else + { + gGL.getTexUnit(0)->bind(imagep->getImage()); + + gGL.color4fv(bg_color.mV); + gl_segmented_rect_3d_tex(border_scale_vec, scaled_border_width, scaled_border_height, width_vec, height_vec); + + if ( mLabelSegments.size()) + { + LLUI::pushMatrix(); + { + gGL.color4f(text_color.mV[VX], text_color.mV[VY], text_color.mV[VZ], gSavedSettings.getF32("ChatBubbleOpacity") * alpha_factor); + LLVector3 label_height = (mFontp->getLineHeight() * mLabelSegments.size() + (VERTICAL_PADDING / 3.f)) * y_pixel_vec; + LLVector3 label_offset = height_vec - label_height; + LLUI::translate(label_offset.mV[VX], label_offset.mV[VY], label_offset.mV[VZ]); + gl_segmented_rect_3d_tex_top(border_scale_vec, scaled_border_width, scaled_border_height, width_vec, label_height); + } + LLUI::popMatrix(); + } + } + + 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(); + { + 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) +{ + 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) + { + //llwarns << "LLHUDNameTag::updateScreenPos -- mSourceObject is NULL!" << llendl; + 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, LLCriticalDamp::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; + } +} |