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phoenix-firestorm/indra/newview/llnetmap.cpp

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/**
* @file llnetmap.cpp
* @author James Cook
* @brief Display of surrounding regions, objects, and agents.
*
* $LicenseInfo:firstyear=2001&license=viewergpl$
*
* Copyright (c) 2001-2009, Linden Research, Inc.
*
* Second Life Viewer Source Code
* The source code in this file ("Source Code") is provided by Linden Lab
* to you under the terms of the GNU General Public License, version 2.0
* ("GPL"), unless you have obtained a separate licensing agreement
* ("Other License"), formally executed by you and Linden Lab. Terms of
* the GPL can be found in doc/GPL-license.txt in this distribution, or
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
*
* There are special exceptions to the terms and conditions of the GPL as
* it is applied to this Source Code. View the full text of the exception
* in the file doc/FLOSS-exception.txt in this software distribution, or
* online at
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
*
* By copying, modifying or distributing this software, you acknowledge
* that you have read and understood your obligations described above,
* and agree to abide by those obligations.
*
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
* COMPLETENESS OR PERFORMANCE.
* $/LicenseInfo$
*/
#include "llviewerprecompiledheaders.h"
#include "llnetmap.h"
// Library includes (should move below)
#include "indra_constants.h"
#include "llmath.h"
#include "llfloaterreg.h"
#include "llfocusmgr.h"
#include "lllocalcliprect.h"
#include "llrender.h"
#include "llui.h"
#include "lltooltip.h"
#include "llglheaders.h"
// Viewer includes
#include "llagent.h"
#include "llappviewer.h" // for gDisconnected
#include "llcallingcard.h" // LLAvatarTracker
#include "lltracker.h"
#include "llsurface.h"
#include "llviewercamera.h"
#include "llviewercontrol.h"
#include "llviewertexture.h"
#include "llviewertexturelist.h"
#include "llviewermenu.h"
#include "llviewerobjectlist.h"
#include "llviewerregion.h"
#include "llworld.h"
#include "llworldmapview.h" // shared draw code
static LLDefaultChildRegistry::Register<LLNetMap> r1("net_map");
const F32 LLNetMap::MAP_SCALE_MIN = 32;
const F32 LLNetMap::MAP_SCALE_MID = 1024;
const F32 LLNetMap::MAP_SCALE_MAX = 4096;
const F32 MAP_SCALE_INCREMENT = 16;
const F32 MAP_SCALE_ZOOM_FACTOR = 1.04f; // Zoom in factor per click of scroll wheel (4%)
const F32 MIN_DOT_RADIUS = 3.5f;
const F32 DOT_SCALE = 0.75f;
const F32 MIN_PICK_SCALE = 2.f;
LLNetMap::LLNetMap (const Params & p)
: LLUICtrl (p),
mBackgroundColor (p.bg_color()),
mScale( MAP_SCALE_MID ),
mPixelsPerMeter( MAP_SCALE_MID / REGION_WIDTH_METERS ),
mObjectMapTPM(0.f),
mObjectMapPixels(0.f),
mTargetPanX(0.f),
mTargetPanY(0.f),
mCurPanX(0.f),
mCurPanY(0.f),
mUpdateNow(FALSE),
mObjectImageCenterGlobal( gAgent.getCameraPositionGlobal() ),
mObjectRawImagep(),
mObjectImagep(),
mClosestAgentToCursor(),
mClosestAgentAtLastRightClick(),
mToolTipMsg()
{
mDotRadius = llmax(DOT_SCALE * mPixelsPerMeter, MIN_DOT_RADIUS);
}
LLNetMap::~LLNetMap()
{
}
void LLNetMap::setScale( F32 scale )
{
mScale = llclamp(scale, 0.1f, 16.f*1024.f); // [reasonably small , unreasonably large]
if (mObjectImagep.notNull())
{
F32 width = (F32)(getRect().getWidth());
F32 height = (F32)(getRect().getHeight());
F32 diameter = sqrt(width * width + height * height);
F32 region_widths = diameter / mScale;
F32 meters = region_widths * LLWorld::getInstance()->getRegionWidthInMeters();
F32 num_pixels = (F32)mObjectImagep->getWidth();
mObjectMapTPM = num_pixels / meters;
mObjectMapPixels = diameter;
}
mPixelsPerMeter = mScale / REGION_WIDTH_METERS;
mDotRadius = llmax(DOT_SCALE * mPixelsPerMeter, MIN_DOT_RADIUS);
mUpdateNow = TRUE;
}
void LLNetMap::translatePan( F32 delta_x, F32 delta_y )
{
mTargetPanX += delta_x;
mTargetPanY += delta_y;
}
///////////////////////////////////////////////////////////////////////////////////
void LLNetMap::draw()
{
static LLFrameTimer map_timer;
static LLUIColor map_avatar_color = LLUIColorTable::instance().getColor("MapAvatarColor", LLColor4::white);
static LLUIColor map_avatar_friend_color = LLUIColorTable::instance().getColor("MapAvatarFriendColor", LLColor4::white);
static LLUIColor map_track_color = LLUIColorTable::instance().getColor("MapTrackColor", LLColor4::white);
static LLUIColor map_track_disabled_color = LLUIColorTable::instance().getColor("MapTrackDisabledColor", LLColor4::white);
static LLUIColor map_frustum_color = LLUIColorTable::instance().getColor("MapFrustumColor", LLColor4::white);
static LLUIColor map_frustum_rotating_color = LLUIColorTable::instance().getColor("MapFrustumRotatingColor", LLColor4::white);
if (mObjectImagep.isNull())
{
createObjectImage();
}
mCurPanX = lerp(mCurPanX, mTargetPanX, LLCriticalDamp::getInterpolant(0.1f));
mCurPanY = lerp(mCurPanY, mTargetPanY, LLCriticalDamp::getInterpolant(0.1f));
// Prepare a scissor region
F32 rotation = 0;
gGL.pushMatrix();
gGL.pushUIMatrix();
LLVector3 offset = gGL.getUITranslation();
LLVector3 scale = gGL.getUIScale();
glLoadIdentity();
gGL.loadUIIdentity();
glScalef(scale.mV[0], scale.mV[1], scale.mV[2]);
gGL.translatef(offset.mV[0], offset.mV[1], offset.mV[2]);
{
LLLocalClipRect clip(getLocalRect());
{
gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
glMatrixMode(GL_MODELVIEW);
// Draw background rectangle
LLColor4 background_color = mBackgroundColor.get();
gGL.color4fv( background_color.mV );
gl_rect_2d(0, getRect().getHeight(), getRect().getWidth(), 0);
}
// region 0,0 is in the middle
S32 center_sw_left = getRect().getWidth() / 2 + llfloor(mCurPanX);
S32 center_sw_bottom = getRect().getHeight() / 2 + llfloor(mCurPanY);
gGL.pushMatrix();
gGL.translatef( (F32) center_sw_left, (F32) center_sw_bottom, 0.f);
static LLUICachedControl<bool> rotate_map("MiniMapRotate", true);
if( rotate_map )
{
// rotate subsequent draws to agent rotation
rotation = atan2( LLViewerCamera::getInstance()->getAtAxis().mV[VX], LLViewerCamera::getInstance()->getAtAxis().mV[VY] );
glRotatef( rotation * RAD_TO_DEG, 0.f, 0.f, 1.f);
}
// figure out where agent is
S32 region_width = llround(LLWorld::getInstance()->getRegionWidthInMeters());
for (LLWorld::region_list_t::const_iterator iter = LLWorld::getInstance()->getRegionList().begin();
iter != LLWorld::getInstance()->getRegionList().end(); ++iter)
{
LLViewerRegion* regionp = *iter;
// Find x and y position relative to camera's center.
LLVector3 origin_agent = regionp->getOriginAgent();
LLVector3 rel_region_pos = origin_agent - gAgent.getCameraPositionAgent();
F32 relative_x = (rel_region_pos.mV[0] / region_width) * mScale;
F32 relative_y = (rel_region_pos.mV[1] / region_width) * mScale;
// background region rectangle
F32 bottom = relative_y;
F32 left = relative_x;
F32 top = bottom + mScale ;
F32 right = left + mScale ;
if (regionp == gAgent.getRegion())
{
gGL.color4f(1.f, 1.f, 1.f, 1.f);
}
else
{
gGL.color4f(0.8f, 0.8f, 0.8f, 1.f);
}
if (!regionp->isAlive())
{
gGL.color4f(1.f, 0.5f, 0.5f, 1.f);
}
// Draw using texture.
gGL.getTexUnit(0)->bind(regionp->getLand().getSTexture());
gGL.begin(LLRender::QUADS);
gGL.texCoord2f(0.f, 1.f);
gGL.vertex2f(left, top);
gGL.texCoord2f(0.f, 0.f);
gGL.vertex2f(left, bottom);
gGL.texCoord2f(1.f, 0.f);
gGL.vertex2f(right, bottom);
gGL.texCoord2f(1.f, 1.f);
gGL.vertex2f(right, top);
gGL.end();
// Draw water
gGL.setAlphaRejectSettings(LLRender::CF_GREATER, ABOVE_WATERLINE_ALPHA / 255.f);
{
if (regionp->getLand().getWaterTexture())
{
gGL.getTexUnit(0)->bind(regionp->getLand().getWaterTexture());
gGL.begin(LLRender::QUADS);
gGL.texCoord2f(0.f, 1.f);
gGL.vertex2f(left, top);
gGL.texCoord2f(0.f, 0.f);
gGL.vertex2f(left, bottom);
gGL.texCoord2f(1.f, 0.f);
gGL.vertex2f(right, bottom);
gGL.texCoord2f(1.f, 1.f);
gGL.vertex2f(right, top);
gGL.end();
}
}
gGL.setAlphaRejectSettings(LLRender::CF_DEFAULT);
}
LLVector3d old_center = mObjectImageCenterGlobal;
LLVector3d new_center = gAgent.getCameraPositionGlobal();
new_center.mdV[0] = (5.f/mObjectMapTPM)*floor(0.2f*mObjectMapTPM*new_center.mdV[0]);
new_center.mdV[1] = (5.f/mObjectMapTPM)*floor(0.2f*mObjectMapTPM*new_center.mdV[1]);
new_center.mdV[2] = 0.f;
if (mUpdateNow || (map_timer.getElapsedTimeF32() > 0.5f))
{
mUpdateNow = FALSE;
mObjectImageCenterGlobal = new_center;
// Center moved enough.
// Create the base texture.
U8 *default_texture = mObjectRawImagep->getData();
memset( default_texture, 0, mObjectImagep->getWidth() * mObjectImagep->getHeight() * mObjectImagep->getComponents() );
// Draw buildings
gObjectList.renderObjectsForMap(*this);
mObjectImagep->setSubImage(mObjectRawImagep, 0, 0, mObjectImagep->getWidth(), mObjectImagep->getHeight());
map_timer.reset();
}
LLVector3 map_center_agent = gAgent.getPosAgentFromGlobal(mObjectImageCenterGlobal);
map_center_agent -= gAgent.getCameraPositionAgent();
map_center_agent.mV[VX] *= mScale/region_width;
map_center_agent.mV[VY] *= mScale/region_width;
gGL.getTexUnit(0)->bind(mObjectImagep);
F32 image_half_width = 0.5f*mObjectMapPixels;
F32 image_half_height = 0.5f*mObjectMapPixels;
gGL.begin(LLRender::QUADS);
gGL.texCoord2f(0.f, 1.f);
gGL.vertex2f(map_center_agent.mV[VX] - image_half_width, image_half_height + map_center_agent.mV[VY]);
gGL.texCoord2f(0.f, 0.f);
gGL.vertex2f(map_center_agent.mV[VX] - image_half_width, map_center_agent.mV[VY] - image_half_height);
gGL.texCoord2f(1.f, 0.f);
gGL.vertex2f(image_half_width + map_center_agent.mV[VX], map_center_agent.mV[VY] - image_half_height);
gGL.texCoord2f(1.f, 1.f);
gGL.vertex2f(image_half_width + map_center_agent.mV[VX], image_half_height + map_center_agent.mV[VY]);
gGL.end();
gGL.popMatrix();
LLVector3d pos_global;
LLVector3 pos_map;
// Mouse pointer in local coordinates
S32 local_mouse_x;
S32 local_mouse_y;
//localMouse(&local_mouse_x, &local_mouse_y);
LLUI::getMousePositionLocal(this, &local_mouse_x, &local_mouse_y);
mClosestAgentToCursor.setNull();
F32 closest_dist = F32_MAX;
F32 min_pick_dist = mDotRadius * MIN_PICK_SCALE;
// Draw avatars
for (LLWorld::region_list_t::const_iterator iter = LLWorld::getInstance()->getRegionList().begin();
iter != LLWorld::getInstance()->getRegionList().end(); ++iter)
{
LLViewerRegion* regionp = *iter;
const LLVector3d& origin_global = regionp->getOriginGlobal();
S32 count = regionp->mMapAvatars.count();
S32 i;
LLVector3 pos_local;
U32 compact_local;
U8 bits;
// TODO: it'd be very cool to draw these in sorted order from lowest Z to highest.
// just be careful to sort the avatar IDs along with the positions. -MG
for (i = 0; i < count; i++)
{
compact_local = regionp->mMapAvatars.get(i);
bits = compact_local & 0xFF;
pos_local.mV[VZ] = F32(bits) * 4.f;
compact_local >>= 8;
bits = compact_local & 0xFF;
pos_local.mV[VY] = (F32)bits;
compact_local >>= 8;
bits = compact_local & 0xFF;
pos_local.mV[VX] = (F32)bits;
pos_global.setVec( pos_local );
pos_global += origin_global;
pos_map = globalPosToView(pos_global);
BOOL show_as_friend = FALSE;
if( i < regionp->mMapAvatarIDs.count())
{
show_as_friend = (LLAvatarTracker::instance().getBuddyInfo(regionp->mMapAvatarIDs.get(i)) != NULL);
}
LLWorldMapView::drawAvatar(
pos_map.mV[VX], pos_map.mV[VY],
show_as_friend ? map_avatar_friend_color : map_avatar_color,
pos_map.mV[VZ], mDotRadius);
F32 dist_to_cursor = dist_vec(LLVector2(pos_map.mV[VX], pos_map.mV[VY]), LLVector2(local_mouse_x,local_mouse_y));
if(dist_to_cursor < min_pick_dist && dist_to_cursor < closest_dist)
{
closest_dist = dist_to_cursor;
mClosestAgentToCursor = regionp->mMapAvatarIDs.get(i);
}
}
}
// Draw dot for autopilot target
if (gAgent.getAutoPilot())
{
drawTracking( gAgent.getAutoPilotTargetGlobal(), map_track_color );
}
else
{
LLTracker::ETrackingStatus tracking_status = LLTracker::getTrackingStatus();
if ( LLTracker::TRACKING_AVATAR == tracking_status )
{
drawTracking( LLAvatarTracker::instance().getGlobalPos(), map_track_color );
}
else if ( LLTracker::TRACKING_LANDMARK == tracking_status
|| LLTracker::TRACKING_LOCATION == tracking_status )
{
drawTracking( LLTracker::getTrackedPositionGlobal(), map_track_color );
}
}
// Draw dot for self avatar position
pos_global = gAgent.getPositionGlobal();
pos_map = globalPosToView(pos_global);
LLUIImagePtr you = LLWorldMapView::sAvatarYouLargeImage;
S32 dot_width = llround(mDotRadius * 2.f);
you->draw(llround(pos_map.mV[VX] - mDotRadius),
llround(pos_map.mV[VY] - mDotRadius),
dot_width,
dot_width);
// Draw frustum
F32 meters_to_pixels = mScale/ LLWorld::getInstance()->getRegionWidthInMeters();
F32 horiz_fov = LLViewerCamera::getInstance()->getView() * LLViewerCamera::getInstance()->getAspect();
F32 far_clip_meters = LLViewerCamera::getInstance()->getFar();
F32 far_clip_pixels = far_clip_meters * meters_to_pixels;
F32 half_width_meters = far_clip_meters * tan( horiz_fov / 2 );
F32 half_width_pixels = half_width_meters * meters_to_pixels;
F32 ctr_x = (F32)center_sw_left;
F32 ctr_y = (F32)center_sw_bottom;
gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
if( rotate_map )
{
gGL.color4fv((map_frustum_color()).mV);
gGL.begin( LLRender::TRIANGLES );
gGL.vertex2f( ctr_x, ctr_y );
gGL.vertex2f( ctr_x - half_width_pixels, ctr_y + far_clip_pixels );
gGL.vertex2f( ctr_x + half_width_pixels, ctr_y + far_clip_pixels );
gGL.end();
}
else
{
gGL.color4fv((map_frustum_rotating_color()).mV);
// If we don't rotate the map, we have to rotate the frustum.
gGL.pushMatrix();
gGL.translatef( ctr_x, ctr_y, 0 );
glRotatef( atan2( LLViewerCamera::getInstance()->getAtAxis().mV[VX], LLViewerCamera::getInstance()->getAtAxis().mV[VY] ) * RAD_TO_DEG, 0.f, 0.f, -1.f);
gGL.begin( LLRender::TRIANGLES );
gGL.vertex2f( 0, 0 );
gGL.vertex2f( -half_width_pixels, far_clip_pixels );
gGL.vertex2f( half_width_pixels, far_clip_pixels );
gGL.end();
gGL.popMatrix();
}
}
gGL.popMatrix();
gGL.popUIMatrix();
LLUICtrl::draw();
}
void LLNetMap::reshape(S32 width, S32 height, BOOL called_from_parent)
{
LLUICtrl::reshape(width, height, called_from_parent);
createObjectImage();
}
LLVector3 LLNetMap::globalPosToView( const LLVector3d& global_pos )
{
LLVector3d relative_pos_global = global_pos - gAgent.getCameraPositionGlobal();
LLVector3 pos_local;
pos_local.setVec(relative_pos_global); // convert to floats from doubles
pos_local.mV[VX] *= mPixelsPerMeter;
pos_local.mV[VY] *= mPixelsPerMeter;
// leave Z component in meters
static LLUICachedControl<bool> rotate_map("MiniMapRotate", true);
if( rotate_map )
{
F32 radians = atan2( LLViewerCamera::getInstance()->getAtAxis().mV[VX], LLViewerCamera::getInstance()->getAtAxis().mV[VY] );
LLQuaternion rot(radians, LLVector3(0.f, 0.f, 1.f));
pos_local.rotVec( rot );
}
pos_local.mV[VX] += getRect().getWidth() / 2 + mCurPanX;
pos_local.mV[VY] += getRect().getHeight() / 2 + mCurPanY;
return pos_local;
}
void LLNetMap::drawTracking(const LLVector3d& pos_global, const LLColor4& color,
BOOL draw_arrow )
{
LLVector3 pos_local = globalPosToView( pos_global );
if( (pos_local.mV[VX] < 0) ||
(pos_local.mV[VY] < 0) ||
(pos_local.mV[VX] >= getRect().getWidth()) ||
(pos_local.mV[VY] >= getRect().getHeight()) )
{
if (draw_arrow)
{
S32 x = llround( pos_local.mV[VX] );
S32 y = llround( pos_local.mV[VY] );
LLWorldMapView::drawTrackingCircle( getRect(), x, y, color, 1, 10 );
LLWorldMapView::drawTrackingArrow( getRect(), x, y, color );
}
}
else
{
LLWorldMapView::drawTrackingDot(pos_local.mV[VX],
pos_local.mV[VY],
color,
pos_local.mV[VZ]);
}
}
LLVector3d LLNetMap::viewPosToGlobal( S32 x, S32 y )
{
x -= llround(getRect().getWidth() / 2 + mCurPanX);
y -= llround(getRect().getHeight() / 2 + mCurPanY);
LLVector3 pos_local( (F32)x, (F32)y, 0 );
F32 radians = - atan2( LLViewerCamera::getInstance()->getAtAxis().mV[VX], LLViewerCamera::getInstance()->getAtAxis().mV[VY] );
static LLUICachedControl<bool> rotate_map("MiniMapRotate", true);
if( rotate_map )
{
LLQuaternion rot(radians, LLVector3(0.f, 0.f, 1.f));
pos_local.rotVec( rot );
}
pos_local *= ( LLWorld::getInstance()->getRegionWidthInMeters() / mScale );
LLVector3d pos_global;
pos_global.setVec( pos_local );
pos_global += gAgent.getCameraPositionGlobal();
return pos_global;
}
BOOL LLNetMap::handleScrollWheel(S32 x, S32 y, S32 clicks)
{
// note that clicks are reversed from what you'd think: i.e. > 0 means zoom out, < 0 means zoom in
F32 scale = mScale;
scale *= pow(MAP_SCALE_ZOOM_FACTOR, -clicks);
setScale(llclamp(scale, MAP_SCALE_MIN, MAP_SCALE_MAX));
return TRUE;
}
BOOL LLNetMap::handleToolTip( S32 x, S32 y, MASK mask )
{
if (gDisconnected)
{
return FALSE;
}
// mToolTipMsg = "[AGENT][REGION](Double-click to open Map)"
LLStringUtil::format_map_t args;
std::string fullname;
if(mClosestAgentToCursor.notNull() && gCacheName->getFullName(mClosestAgentToCursor, fullname))
{
args["[AGENT]"] = fullname + "\n";
}
else
{
args["[AGENT]"] = "";
}
LLViewerRegion* region = LLWorld::getInstance()->getRegionFromPosGlobal( viewPosToGlobal( x, y ) );
if( region )
{
args["[REGION]"] = region->getName() + "\n";
}
else
{
args["[REGION]"] = "";
}
std::string msg = mToolTipMsg;
LLStringUtil::format(msg, args);
LLRect sticky_rect;
// set sticky_rect
if (region)
{
S32 SLOP = 4;
localPointToScreen(
x - SLOP, y - SLOP,
&(sticky_rect.mLeft), &(sticky_rect.mBottom) );
sticky_rect.mRight = sticky_rect.mLeft + 2 * SLOP;
sticky_rect.mTop = sticky_rect.mBottom + 2 * SLOP;
}
LLToolTipMgr::instance().show(LLToolTip::Params()
.message(msg)
.sticky_rect(sticky_rect));
return TRUE;
}
void LLNetMap::renderScaledPointGlobal( const LLVector3d& pos, const LLColor4U &color, F32 radius_meters )
{
LLVector3 local_pos;
local_pos.setVec( pos - mObjectImageCenterGlobal );
S32 diameter_pixels = llround(2 * radius_meters * mObjectMapTPM);
renderPoint( local_pos, color, diameter_pixels );
}
void LLNetMap::renderPoint(const LLVector3 &pos_local, const LLColor4U &color,
S32 diameter, S32 relative_height)
{
if (diameter <= 0)
{
return;
}
const S32 image_width = (S32)mObjectImagep->getWidth();
const S32 image_height = (S32)mObjectImagep->getHeight();
S32 x_offset = llround(pos_local.mV[VX] * mObjectMapTPM + image_width / 2);
S32 y_offset = llround(pos_local.mV[VY] * mObjectMapTPM + image_height / 2);
if ((x_offset < 0) || (x_offset >= image_width))
{
return;
}
if ((y_offset < 0) || (y_offset >= image_height))
{
return;
}
U8 *datap = mObjectRawImagep->getData();
S32 neg_radius = diameter / 2;
S32 pos_radius = diameter - neg_radius;
S32 x, y;
if (relative_height > 0)
{
// ...point above agent
S32 px, py;
// vertical line
px = x_offset;
for (y = -neg_radius; y < pos_radius; y++)
{
py = y_offset + y;
if ((py < 0) || (py >= image_height))
{
continue;
}
S32 offset = px + py * image_width;
((U32*)datap)[offset] = color.mAll;
}
// top line
py = y_offset + pos_radius - 1;
for (x = -neg_radius; x < pos_radius; x++)
{
px = x_offset + x;
if ((px < 0) || (px >= image_width))
{
continue;
}
S32 offset = px + py * image_width;
((U32*)datap)[offset] = color.mAll;
}
}
else
{
// ...point level with agent
for (x = -neg_radius; x < pos_radius; x++)
{
S32 p_x = x_offset + x;
if ((p_x < 0) || (p_x >= image_width))
{
continue;
}
for (y = -neg_radius; y < pos_radius; y++)
{
S32 p_y = y_offset + y;
if ((p_y < 0) || (p_y >= image_height))
{
continue;
}
S32 offset = p_x + p_y * image_width;
((U32*)datap)[offset] = color.mAll;
}
}
}
}
void LLNetMap::createObjectImage()
{
// Find the size of the side of a square that surrounds the circle that surrounds getRect().
// ... which is, the diagonal of the rect.
F32 width = (F32)getRect().getWidth();
F32 height = (F32)getRect().getHeight();
S32 square_size = llround( sqrt(width*width + height*height) );
// Find the least power of two >= the minimum size.
const S32 MIN_SIZE = 64;
const S32 MAX_SIZE = 256;
S32 img_size = MIN_SIZE;
while( (img_size*2 < square_size ) && (img_size < MAX_SIZE) )
{
img_size <<= 1;
}
if( mObjectImagep.isNull() ||
(mObjectImagep->getWidth() != img_size) ||
(mObjectImagep->getHeight() != img_size) )
{
mObjectRawImagep = new LLImageRaw(img_size, img_size, 4);
U8* data = mObjectRawImagep->getData();
memset( data, 0, img_size * img_size * 4 );
mObjectImagep = LLViewerTextureManager::getLocalTexture( mObjectRawImagep.get(), FALSE);
}
setScale(mScale);
mUpdateNow = TRUE;
}
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