/indra/newview/llhudicon.cpp
https://bitbucket.org/lindenlab/viewer-beta/ · C++ · 400 lines · 283 code · 71 blank · 46 comment · 33 complexity · 03d137b78da6bb45059f38993ea17090 MD5 · raw file
- /**
- * @file llhudicon.cpp
- * @brief LLHUDIcon class implementation
- *
- * $LicenseInfo:firstyear=2006&license=viewerlgpl$
- * 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 "llhudicon.h"
- #include "llgl.h"
- #include "llrender.h"
- #include "llviewerobject.h"
- #include "lldrawable.h"
- #include "llvector4a.h"
- #include "llviewercamera.h"
- #include "llviewertexture.h"
- #include "llviewerwindow.h"
- //-----------------------------------------------------------------------------
- // Local consts
- //-----------------------------------------------------------------------------
- const F32 ANIM_TIME = 0.4f;
- const F32 DIST_START_FADE = 15.f;
- const F32 DIST_END_FADE = 30.f;
- const F32 MAX_VISIBLE_TIME = 15.f;
- const F32 FADE_OUT_TIME = 1.f;
- //-----------------------------------------------------------------------------
- // Utility functions
- //-----------------------------------------------------------------------------
- static F32 calc_bouncy_animation(F32 x)
- {
- return -(cosf(x * F_PI * 2.5f - F_PI_BY_TWO))*(0.4f + x * -0.1f) + x * 1.3f;
- }
- //-----------------------------------------------------------------------------
- // static declarations
- //-----------------------------------------------------------------------------
- LLHUDIcon::icon_instance_t LLHUDIcon::sIconInstances;
- LLHUDIcon::LLHUDIcon(const U8 type) :
- LLHUDObject(type),
- mImagep(NULL),
- mPickID(0),
- mScale(0.1f),
- mHidden(FALSE)
- {
- sIconInstances.push_back(this);
- }
- LLHUDIcon::~LLHUDIcon()
- {
- mImagep = NULL;
- }
- void LLHUDIcon::renderIcon(BOOL for_select)
- {
- LLGLSUIDefault texture_state;
- LLGLDepthTest gls_depth(GL_TRUE);
- if (for_select)
- {
- gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
- }
-
- if (mHidden)
- return;
- if (mSourceObject.isNull() || mImagep.isNull())
- {
- markDead();
- return;
- }
- LLVector3 obj_position = mSourceObject->getRenderPosition();
- // put icon above object, and in front
- // RN: don't use drawable radius, it's fricking HUGE
- LLViewerCamera* camera = LLViewerCamera::getInstance();
- LLVector3 icon_relative_pos = (camera->getUpAxis() * ~mSourceObject->getRenderRotation());
- icon_relative_pos.abs();
- F32 distance_scale = llmin(mSourceObject->getScale().mV[VX] / icon_relative_pos.mV[VX],
- mSourceObject->getScale().mV[VY] / icon_relative_pos.mV[VY],
- mSourceObject->getScale().mV[VZ] / icon_relative_pos.mV[VZ]);
- F32 up_distance = 0.5f * distance_scale;
- LLVector3 icon_position = obj_position + (up_distance * camera->getUpAxis()) * 1.2f;
- LLVector3 icon_to_cam = LLViewerCamera::getInstance()->getOrigin() - icon_position;
- icon_to_cam.normVec();
- icon_position += icon_to_cam * mSourceObject->mDrawable->getRadius() * 1.1f;
- mDistance = dist_vec(icon_position, camera->getOrigin());
- F32 alpha_factor = for_select ? 1.f : clamp_rescale(mDistance, DIST_START_FADE, DIST_END_FADE, 1.f, 0.f);
- LLVector3 x_pixel_vec;
- LLVector3 y_pixel_vec;
-
- camera->getPixelVectors(icon_position, y_pixel_vec, x_pixel_vec);
- F32 scale_factor = 1.f;
- if (mAnimTimer.getElapsedTimeF32() < ANIM_TIME)
- {
- scale_factor = llmax(0.f, calc_bouncy_animation(mAnimTimer.getElapsedTimeF32() / ANIM_TIME));
- }
- F32 time_elapsed = mLifeTimer.getElapsedTimeF32();
- if (time_elapsed > MAX_VISIBLE_TIME)
- {
- markDead();
- return;
- }
-
- if (time_elapsed > MAX_VISIBLE_TIME - FADE_OUT_TIME)
- {
- alpha_factor *= clamp_rescale(time_elapsed, MAX_VISIBLE_TIME - FADE_OUT_TIME, MAX_VISIBLE_TIME, 1.f, 0.f);
- }
- F32 image_aspect = (F32)mImagep->getFullWidth() / (F32)mImagep->getFullHeight() ;
- LLVector3 x_scale = image_aspect * (F32)gViewerWindow->getWindowHeightScaled() * mScale * scale_factor * x_pixel_vec;
- LLVector3 y_scale = (F32)gViewerWindow->getWindowHeightScaled() * mScale * scale_factor * y_pixel_vec;
- LLVector3 lower_left = icon_position - (x_scale * 0.5f);
- LLVector3 lower_right = icon_position + (x_scale * 0.5f);
- LLVector3 upper_left = icon_position - (x_scale * 0.5f) + y_scale;
- LLVector3 upper_right = icon_position + (x_scale * 0.5f) + y_scale;
- if (for_select)
- {
- // set color to unique color id for picking
- LLColor4U coloru((U8)(mPickID >> 16), (U8)(mPickID >> 8), (U8)mPickID);
- gGL.color4ubv(coloru.mV);
- }
- else
- {
- LLColor4 icon_color = LLColor4::white;
- icon_color.mV[VALPHA] = alpha_factor;
- gGL.color4fv(icon_color.mV);
- gGL.getTexUnit(0)->bind(mImagep);
- }
- gGL.begin(LLRender::QUADS);
- {
- gGL.texCoord2f(0.f, 1.f);
- gGL.vertex3fv(upper_left.mV);
- gGL.texCoord2f(0.f, 0.f);
- gGL.vertex3fv(lower_left.mV);
- gGL.texCoord2f(1.f, 0.f);
- gGL.vertex3fv(lower_right.mV);
- gGL.texCoord2f(1.f, 1.f);
- gGL.vertex3fv(upper_right.mV);
- }
- gGL.end();
- }
- void LLHUDIcon::setImage(LLViewerTexture* imagep)
- {
- mImagep = imagep;
- mImagep->setAddressMode(LLTexUnit::TAM_CLAMP);
- }
- void LLHUDIcon::setScale(F32 fraction_of_fov)
- {
- mScale = fraction_of_fov;
- }
- void LLHUDIcon::markDead()
- {
- if (mSourceObject)
- {
- mSourceObject->clearIcon();
- }
- LLHUDObject::markDead();
- }
- void LLHUDIcon::render()
- {
- renderIcon(FALSE);
- }
- BOOL LLHUDIcon::lineSegmentIntersect(const LLVector3& start, const LLVector3& end, LLVector3* intersection)
- {
- if (mHidden)
- return FALSE;
- if (mSourceObject.isNull() || mImagep.isNull())
- {
- markDead();
- return FALSE;
- }
- LLVector3 obj_position = mSourceObject->getRenderPosition();
- // put icon above object, and in front
- // RN: don't use drawable radius, it's fricking HUGE
- LLViewerCamera* camera = LLViewerCamera::getInstance();
- LLVector3 icon_relative_pos = (camera->getUpAxis() * ~mSourceObject->getRenderRotation());
- icon_relative_pos.abs();
- F32 distance_scale = llmin(mSourceObject->getScale().mV[VX] / icon_relative_pos.mV[VX],
- mSourceObject->getScale().mV[VY] / icon_relative_pos.mV[VY],
- mSourceObject->getScale().mV[VZ] / icon_relative_pos.mV[VZ]);
- F32 up_distance = 0.5f * distance_scale;
- LLVector3 icon_position = obj_position + (up_distance * camera->getUpAxis()) * 1.2f;
- LLVector3 icon_to_cam = LLViewerCamera::getInstance()->getOrigin() - icon_position;
- icon_to_cam.normVec();
- icon_position += icon_to_cam * mSourceObject->mDrawable->getRadius() * 1.1f;
- mDistance = dist_vec(icon_position, camera->getOrigin());
- LLVector3 x_pixel_vec;
- LLVector3 y_pixel_vec;
-
- camera->getPixelVectors(icon_position, y_pixel_vec, x_pixel_vec);
- F32 scale_factor = 1.f;
- if (mAnimTimer.getElapsedTimeF32() < ANIM_TIME)
- {
- scale_factor = llmax(0.f, calc_bouncy_animation(mAnimTimer.getElapsedTimeF32() / ANIM_TIME));
- }
- F32 time_elapsed = mLifeTimer.getElapsedTimeF32();
- if (time_elapsed > MAX_VISIBLE_TIME)
- {
- markDead();
- return FALSE;
- }
-
- F32 image_aspect = (F32)mImagep->getFullWidth() / (F32)mImagep->getFullHeight() ;
- LLVector3 x_scale = image_aspect * (F32)gViewerWindow->getWindowHeightScaled() * mScale * scale_factor * x_pixel_vec;
- LLVector3 y_scale = (F32)gViewerWindow->getWindowHeightScaled() * mScale * scale_factor * y_pixel_vec;
- LLVector4a x_scalea;
- LLVector4a icon_positiona;
- LLVector4a y_scalea;
- x_scalea.load3(x_scale.mV);
- x_scalea.mul(0.5f);
- y_scalea.load3(y_scale.mV);
- icon_positiona.load3(icon_position.mV);
- LLVector4a lower_left;
- lower_left.setSub(icon_positiona, x_scalea);
- LLVector4a lower_right;
- lower_right.setAdd(icon_positiona, x_scalea);
- LLVector4a upper_left;
- upper_left.setAdd(lower_left, y_scalea);
- LLVector4a upper_right;
- upper_right.setAdd(lower_right, y_scalea);
- LLVector4a enda;
- enda.load3(end.mV);
- LLVector4a starta;
- starta.load3(start.mV);
- LLVector4a dir;
- dir.setSub(enda, starta);
- F32 a,b,t;
- if (LLTriangleRayIntersect(upper_right, upper_left, lower_right, starta, dir, a,b,t) ||
- LLTriangleRayIntersect(upper_left, lower_left, lower_right, starta, dir, a,b,t))
- {
- if (intersection)
- {
- dir.mul(t);
- starta.add(dir);
- *intersection = LLVector3(starta.getF32ptr());
- }
- return TRUE;
- }
- return FALSE;
- }
- //static
- S32 LLHUDIcon::generatePickIDs(S32 start_id, S32 step_size)
- {
- S32 cur_id = start_id;
- icon_instance_t::iterator icon_it;
- for(icon_it = sIconInstances.begin(); icon_it != sIconInstances.end(); ++icon_it)
- {
- (*icon_it)->mPickID = cur_id;
- cur_id += step_size;
- }
- return cur_id;
- }
- //static
- LLHUDIcon* LLHUDIcon::handlePick(S32 pick_id)
- {
- icon_instance_t::iterator icon_it;
- for(icon_it = sIconInstances.begin(); icon_it != sIconInstances.end(); ++icon_it)
- {
- if (pick_id == (*icon_it)->mPickID)
- {
- return *icon_it;
- }
- }
- return NULL;
- }
- //static
- LLHUDIcon* LLHUDIcon::lineSegmentIntersectAll(const LLVector3& start, const LLVector3& end, LLVector3* intersection)
- {
- icon_instance_t::iterator icon_it;
- LLVector3 local_end = end;
- LLVector3 position;
- LLHUDIcon* ret = NULL;
- for(icon_it = sIconInstances.begin(); icon_it != sIconInstances.end(); ++icon_it)
- {
- LLHUDIcon* icon = *icon_it;
- if (icon->lineSegmentIntersect(start, local_end, &position))
- {
- ret = icon;
- if (intersection)
- {
- *intersection = position;
- }
- local_end = position;
- }
- }
- return ret;
- }
- //static
- void LLHUDIcon::updateAll()
- {
- cleanupDeadIcons();
- }
- //static
- BOOL LLHUDIcon::iconsNearby()
- {
- return !sIconInstances.empty();
- }
- //static
- void LLHUDIcon::cleanupDeadIcons()
- {
- icon_instance_t::iterator icon_it;
- icon_instance_t icons_to_erase;
- for(icon_it = sIconInstances.begin(); icon_it != sIconInstances.end(); ++icon_it)
- {
- if ((*icon_it)->mDead)
- {
- icons_to_erase.push_back(*icon_it);
- }
- }
- for(icon_it = icons_to_erase.begin(); icon_it != icons_to_erase.end(); ++icon_it)
- {
- icon_instance_t::iterator found_it = std::find(sIconInstances.begin(), sIconInstances.end(), *icon_it);
- if (found_it != sIconInstances.end())
- {
- sIconInstances.erase(found_it);
- }
- }
- }
- //static
- S32 LLHUDIcon::getNumInstances()
- {
- return (S32)sIconInstances.size();
- }