401 lines
12 KiB
C++
401 lines
12 KiB
C++
/**
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* @file llhudicon.cpp
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* @brief LLHUDIcon class implementation
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*
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* $LicenseInfo:firstyear=2006&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#include "llviewerprecompiledheaders.h"
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#include "llhudicon.h"
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#include "llgl.h"
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#include "llrender.h"
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#include "llviewerobject.h"
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#include "lldrawable.h"
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#include "llvector4a.h"
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#include "llviewercamera.h"
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#include "llviewertexture.h"
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#include "llviewerwindow.h"
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//-----------------------------------------------------------------------------
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// Local consts
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//-----------------------------------------------------------------------------
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const F32 ANIM_TIME = 0.4f;
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const F32 DIST_START_FADE = 15.f;
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const F32 DIST_END_FADE = 30.f;
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const F32 MAX_VISIBLE_TIME = 15.f;
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const F32 FADE_OUT_TIME = 1.f;
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//-----------------------------------------------------------------------------
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// Utility functions
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//-----------------------------------------------------------------------------
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static F32 calc_bouncy_animation(F32 x)
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{
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return -(cosf(x * F_PI * 2.5f - F_PI_BY_TWO))*(0.4f + x * -0.1f) + x * 1.3f;
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}
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//-----------------------------------------------------------------------------
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// static declarations
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//-----------------------------------------------------------------------------
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LLHUDIcon::icon_instance_t LLHUDIcon::sIconInstances;
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// <FS:Ansariel> Mark script error icons
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LLHUDIcon::icon_instance_t LLHUDIcon::sScriptErrorIconInstances;
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// </FS:Ansariel> Mark script error icons
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LLHUDIcon::LLHUDIcon(const U8 type) :
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LLHUDObject(type),
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mImagep(NULL),
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mScale(0.1f),
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mHidden(false),
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mScriptError(false) // <FS:Ansariel> Mark script error icons
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{
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sIconInstances.push_back(this);
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}
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LLHUDIcon::~LLHUDIcon()
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{
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mImagep = NULL;
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}
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void LLHUDIcon::render()
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{
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LLGLSUIDefault texture_state;
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LLGLDepthTest gls_depth(GL_TRUE);
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//LLGLDisable gls_stencil(GL_STENCIL_TEST);
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if (mHidden)
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return;
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if (mSourceObject.isNull() || mImagep.isNull())
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{
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markDead();
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return;
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}
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LLVector3 obj_position = mSourceObject->getRenderPosition();
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// put icon above object, and in front
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// RN: don't use drawable radius, it's fricking HUGE
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LLViewerCamera* camera = LLViewerCamera::getInstance();
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LLVector3 icon_relative_pos = (camera->getUpAxis() * ~mSourceObject->getRenderRotation());
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icon_relative_pos.abs();
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F32 distance_scale = llmin(mSourceObject->getScale().mV[VX] / icon_relative_pos.mV[VX],
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mSourceObject->getScale().mV[VY] / icon_relative_pos.mV[VY],
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mSourceObject->getScale().mV[VZ] / icon_relative_pos.mV[VZ]);
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F32 up_distance = 0.5f * distance_scale;
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LLVector3 icon_position = obj_position + (up_distance * camera->getUpAxis()) * 1.2f;
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LLVector3 icon_to_cam = LLViewerCamera::getInstance()->getOrigin() - icon_position;
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icon_to_cam.normVec();
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icon_position += icon_to_cam * mSourceObject->mDrawable->getRadius() * 1.1f;
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mDistance = dist_vec(icon_position, camera->getOrigin());
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F32 alpha_factor = clamp_rescale(mDistance, DIST_START_FADE, DIST_END_FADE, 1.f, 0.f);
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LLVector3 x_pixel_vec;
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LLVector3 y_pixel_vec;
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camera->getPixelVectors(icon_position, y_pixel_vec, x_pixel_vec);
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F32 scale_factor = 1.f;
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if (mAnimTimer.getElapsedTimeF32() < ANIM_TIME)
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{
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scale_factor = llmax(0.f, calc_bouncy_animation(mAnimTimer.getElapsedTimeF32() / ANIM_TIME));
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}
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F32 time_elapsed = mLifeTimer.getElapsedTimeF32();
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if (time_elapsed > MAX_VISIBLE_TIME)
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{
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markDead();
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return;
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}
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if (time_elapsed > MAX_VISIBLE_TIME - FADE_OUT_TIME)
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{
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alpha_factor *= clamp_rescale(time_elapsed, MAX_VISIBLE_TIME - FADE_OUT_TIME, MAX_VISIBLE_TIME, 1.f, 0.f);
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}
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F32 image_aspect = (F32)mImagep->getFullWidth() / (F32)mImagep->getFullHeight() ;
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LLVector3 x_scale = image_aspect * (F32)gViewerWindow->getWindowHeightScaled() * mScale * scale_factor * x_pixel_vec;
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LLVector3 y_scale = (F32)gViewerWindow->getWindowHeightScaled() * mScale * scale_factor * y_pixel_vec;
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LLVector3 lower_left = icon_position - (x_scale * 0.5f);
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LLVector3 lower_right = icon_position + (x_scale * 0.5f);
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LLVector3 upper_left = icon_position - (x_scale * 0.5f) + y_scale;
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LLVector3 upper_right = icon_position + (x_scale * 0.5f) + y_scale;
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{
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LLColor4 icon_color = LLColor4::white;
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icon_color.mV[VALPHA] = alpha_factor;
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gGL.color4fv(icon_color.mV);
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gGL.getTexUnit(0)->bind(mImagep);
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}
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// <FS:Ansariel> Remove QUADS rendering mode
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//gGL.begin(LLRender::QUADS);
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//{
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// gGL.texCoord2f(0.f, 1.f);
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// gGL.vertex3fv(upper_left.mV);
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// gGL.texCoord2f(0.f, 0.f);
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// gGL.vertex3fv(lower_left.mV);
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// gGL.texCoord2f(1.f, 0.f);
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// gGL.vertex3fv(lower_right.mV);
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// gGL.texCoord2f(1.f, 1.f);
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// gGL.vertex3fv(upper_right.mV);
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//}
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//gGL.end();
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gGL.begin(LLRender::TRIANGLES);
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{
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gGL.texCoord2f(0.f, 1.f);
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gGL.vertex3fv(upper_left.mV);
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gGL.texCoord2f(0.f, 0.f);
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gGL.vertex3fv(lower_left.mV);
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gGL.texCoord2f(1.f, 0.f);
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gGL.vertex3fv(lower_right.mV);
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gGL.texCoord2f(0.f, 1.f);
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gGL.vertex3fv(upper_left.mV);
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gGL.texCoord2f(1.f, 0.f);
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gGL.vertex3fv(lower_right.mV);
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gGL.texCoord2f(1.f, 1.f);
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gGL.vertex3fv(upper_right.mV);
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}
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gGL.end();
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// </FS:Ansariel>
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}
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void LLHUDIcon::setImage(LLViewerTexture* imagep)
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{
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mImagep = imagep;
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mImagep->setAddressMode(LLTexUnit::TAM_CLAMP);
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}
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void LLHUDIcon::setScale(F32 fraction_of_fov)
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{
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mScale = fraction_of_fov;
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}
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void LLHUDIcon::markDead()
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{
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if (mSourceObject)
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{
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mSourceObject->clearIcon();
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}
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LLHUDObject::markDead();
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}
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bool LLHUDIcon::lineSegmentIntersect(const LLVector4a& start, const LLVector4a& end, LLVector4a* intersection)
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{
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if (mHidden)
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return false;
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if (mSourceObject.isNull() || mImagep.isNull())
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{
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markDead();
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return false;
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}
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LLVector3 obj_position = mSourceObject->getRenderPosition();
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// put icon above object, and in front
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// RN: don't use drawable radius, it's fricking HUGE
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LLViewerCamera* camera = LLViewerCamera::getInstance();
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LLVector3 icon_relative_pos = (camera->getUpAxis() * ~mSourceObject->getRenderRotation());
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icon_relative_pos.abs();
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F32 distance_scale = llmin(mSourceObject->getScale().mV[VX] / icon_relative_pos.mV[VX],
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mSourceObject->getScale().mV[VY] / icon_relative_pos.mV[VY],
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mSourceObject->getScale().mV[VZ] / icon_relative_pos.mV[VZ]);
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F32 up_distance = 0.5f * distance_scale;
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LLVector3 icon_position = obj_position + (up_distance * camera->getUpAxis()) * 1.2f;
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LLVector3 icon_to_cam = LLViewerCamera::getInstance()->getOrigin() - icon_position;
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icon_to_cam.normVec();
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icon_position += icon_to_cam * mSourceObject->mDrawable->getRadius() * 1.1f;
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mDistance = dist_vec(icon_position, camera->getOrigin());
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LLVector3 x_pixel_vec;
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LLVector3 y_pixel_vec;
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camera->getPixelVectors(icon_position, y_pixel_vec, x_pixel_vec);
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F32 scale_factor = 1.f;
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if (mAnimTimer.getElapsedTimeF32() < ANIM_TIME)
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{
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scale_factor = llmax(0.f, calc_bouncy_animation(mAnimTimer.getElapsedTimeF32() / ANIM_TIME));
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}
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F32 time_elapsed = mLifeTimer.getElapsedTimeF32();
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if (time_elapsed > MAX_VISIBLE_TIME)
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{
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markDead();
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return false;
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}
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F32 image_aspect = (F32)mImagep->getFullWidth() / (F32)mImagep->getFullHeight() ;
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LLVector3 x_scale = image_aspect * (F32)gViewerWindow->getWindowHeightScaled() * mScale * scale_factor * x_pixel_vec;
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LLVector3 y_scale = (F32)gViewerWindow->getWindowHeightScaled() * mScale * scale_factor * y_pixel_vec;
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LLVector4a x_scalea;
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LLVector4a icon_positiona;
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LLVector4a y_scalea;
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x_scalea.load3(x_scale.mV);
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x_scalea.mul(0.5f);
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y_scalea.load3(y_scale.mV);
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icon_positiona.load3(icon_position.mV);
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LLVector4a lower_left;
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lower_left.setSub(icon_positiona, x_scalea);
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LLVector4a lower_right;
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lower_right.setAdd(icon_positiona, x_scalea);
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LLVector4a upper_left;
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upper_left.setAdd(lower_left, y_scalea);
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LLVector4a upper_right;
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upper_right.setAdd(lower_right, y_scalea);
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LLVector4a dir;
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dir.setSub(end, start);
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F32 a,b,t;
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if (LLTriangleRayIntersect(upper_right, upper_left, lower_right, start, dir, a,b,t) ||
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LLTriangleRayIntersect(upper_left, lower_left, lower_right, start, dir, a,b,t))
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{
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if (intersection)
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{
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dir.mul(t);
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intersection->setAdd(start, dir);
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}
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return true;
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}
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return false;
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}
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//static
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LLHUDIcon* LLHUDIcon::lineSegmentIntersectAll(const LLVector4a& start, const LLVector4a& end, LLVector4a* intersection)
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{
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icon_instance_t::iterator icon_it;
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LLVector4a local_end = end;
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LLVector4a position;
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LLHUDIcon* ret = NULL;
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for(icon_it = sIconInstances.begin(); icon_it != sIconInstances.end(); ++icon_it)
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{
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LLHUDIcon* icon = *icon_it;
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if (icon->lineSegmentIntersect(start, local_end, &position))
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{
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ret = icon;
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if (intersection)
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{
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*intersection = position;
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}
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local_end = position;
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}
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}
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return ret;
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}
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//static
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void LLHUDIcon::updateAll()
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{
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cleanupDeadIcons();
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}
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//static
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bool LLHUDIcon::iconsNearby()
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{
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return !sIconInstances.empty();
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}
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//static
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void LLHUDIcon::cleanupDeadIcons()
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{
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icon_instance_t::iterator icon_it;
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icon_instance_t icons_to_erase;
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for(icon_it = sIconInstances.begin(); icon_it != sIconInstances.end(); ++icon_it)
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{
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if ((*icon_it)->mDead)
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{
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icons_to_erase.push_back(*icon_it);
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}
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}
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for(icon_it = icons_to_erase.begin(); icon_it != icons_to_erase.end(); ++icon_it)
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{
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icon_instance_t::iterator found_it = std::find(sIconInstances.begin(), sIconInstances.end(), *icon_it);
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if (found_it != sIconInstances.end())
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{
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sIconInstances.erase(found_it);
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}
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// <FS:Ansariel> Mark script error icons
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if ((*icon_it)->mScriptError)
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{
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icon_instance_t::iterator found_script_it = std::find(sScriptErrorIconInstances.begin(), sScriptErrorIconInstances.end(), *icon_it);
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if (found_script_it != sScriptErrorIconInstances.end())
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{
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sScriptErrorIconInstances.erase(found_script_it);
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}
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}
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// </FS:Ansariel> Mark script error icons
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}
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}
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//static
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S32 LLHUDIcon::getNumInstances()
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{
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return (S32)sIconInstances.size();
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}
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// <FS:Ansariel> Mark script error icons
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void LLHUDIcon::setScriptError()
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{
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if (std::find(sScriptErrorIconInstances.begin(), sScriptErrorIconInstances.end(), this) == sScriptErrorIconInstances.end())
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{
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mScriptError = true;
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sScriptErrorIconInstances.push_back(this);
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}
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}
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//static
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bool LLHUDIcon::scriptIconsNearby()
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{
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return !sScriptErrorIconInstances.empty();
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}
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// </FS:Ansariel> Mark script error icons
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