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Diffstat (limited to 'indra/newview/llcloud.cpp')
| -rw-r--r-- | indra/newview/llcloud.cpp | 538 |
1 files changed, 0 insertions, 538 deletions
diff --git a/indra/newview/llcloud.cpp b/indra/newview/llcloud.cpp deleted file mode 100644 index cda0f6e4a2..0000000000 --- a/indra/newview/llcloud.cpp +++ /dev/null @@ -1,538 +0,0 @@ -/** - * @file llcloud.cpp - * @brief Implementation of viewer LLCloudLayer class - * - * $LicenseInfo:firstyear=2001&license=viewerlgpl$ - * 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 "llmath.h" -//#include "vmath.h" -#include "v3math.h" -#include "v4math.h" -#include "llquaternion.h" -#include "llrand.h" -#include "v4color.h" - -#include "llwind.h" -#include "llcloud.h" -#include "llgl.h" -#include "llviewerobjectlist.h" -#include "llvoclouds.h" -#include "llvosky.h" -#include "llsky.h" -#include "llviewerregion.h" -#include "patch_dct.h" -#include "patch_code.h" -#include "llglheaders.h" -#include "pipeline.h" -#include "lldrawpool.h" -#include "llworld.h" - -extern LLPipeline gPipeline; - -const F32 CLOUD_UPDATE_RATE = 1.0f; // Global time dilation for clouds -const F32 CLOUD_GROW_RATE = 0.05f; -const F32 CLOUD_DECAY_RATE = -0.05f; -const F32 CLOUD_VELOCITY_SCALE = 0.01f; -const F32 CLOUD_DENSITY = 25.f; -const S32 CLOUD_COUNT_MAX = 20; -const F32 CLOUD_HEIGHT_RANGE = 48.f; -const F32 CLOUD_HEIGHT_MEAN = 192.f; - -enum -{ - LL_PUFF_GROWING = 0, - LL_PUFF_DYING = 1 -}; - -// Used for patch decoder -S32 gBuffer[16*16]; - - -//static -S32 LLCloudPuff::sPuffCount = 0; - -LLCloudPuff::LLCloudPuff() : - mAlpha(0.01f), - mRate(CLOUD_GROW_RATE*CLOUD_UPDATE_RATE), - mLifeState(LL_PUFF_GROWING) -{ -} - -LLCloudGroup::LLCloudGroup() : - mCloudLayerp(NULL), - mDensity(0.f), - mTargetPuffCount(0), - mVOCloudsp(NULL) -{ -} - -void LLCloudGroup::cleanup() -{ - if (mVOCloudsp) - { - if (!mVOCloudsp->isDead()) - { - gObjectList.killObject(mVOCloudsp); - } - mVOCloudsp = NULL; - } -} - -void LLCloudGroup::setCenterRegion(const LLVector3 ¢er) -{ - mCenterRegion = center; -} - -void LLCloudGroup::updatePuffs(const F32 dt) -{ - mDensity = mCloudLayerp->getDensityRegion(mCenterRegion); - - if (!mVOCloudsp) - { - mVOCloudsp = (LLVOClouds *)gObjectList.createObjectViewer(LLViewerObject::LL_VO_CLOUDS, mCloudLayerp->getRegion()); - mVOCloudsp->setCloudGroup(this); - mVOCloudsp->setPositionRegion(mCenterRegion); - mVOCloudsp->setScale(LLVector3(256.f/CLOUD_GROUPS_PER_EDGE + CLOUD_PUFF_WIDTH, - 256.f/CLOUD_GROUPS_PER_EDGE + CLOUD_PUFF_WIDTH, - CLOUD_HEIGHT_RANGE + CLOUD_PUFF_HEIGHT)*0.5f); - gPipeline.createObject(mVOCloudsp); - } - - LLVector3 velocity; - LLVector3d vel_d; - // Update the positions of all of the clouds - for (U32 i = 0; i < mCloudPuffs.size(); i++) - { - LLCloudPuff &puff = mCloudPuffs[i]; - velocity = mCloudLayerp->getRegion()->mWind.getCloudVelocity(mCloudLayerp->getRegion()->getPosRegionFromGlobal(puff.mPositionGlobal)); - velocity *= CLOUD_VELOCITY_SCALE*CLOUD_UPDATE_RATE; - vel_d.setVec(velocity); - mCloudPuffs[i].mPositionGlobal += vel_d; - mCloudPuffs[i].mAlpha += mCloudPuffs[i].mRate * dt; - mCloudPuffs[i].mAlpha = llmin(1.f, mCloudPuffs[i].mAlpha); - mCloudPuffs[i].mAlpha = llmax(0.f, mCloudPuffs[i].mAlpha); - } -} - -void LLCloudGroup::updatePuffOwnership() -{ - U32 i = 0; - while (i < mCloudPuffs.size()) - { - if (mCloudPuffs[i].getLifeState() == LL_PUFF_DYING) - { - i++; - continue; - } - if (inGroup(mCloudPuffs[i])) - { - i++; - continue; - } - - //llinfos << "Cloud moving to new group" << llendl; - LLCloudGroup *new_cgp = LLWorld::getInstance()->findCloudGroup(mCloudPuffs[i]); - if (!new_cgp) - { - //llinfos << "Killing puff not in group" << llendl; - mCloudPuffs[i].setLifeState(LL_PUFF_DYING); - mCloudPuffs[i].mRate = CLOUD_DECAY_RATE*CLOUD_UPDATE_RATE; - i++; - continue; - } - //llinfos << "Puff handed off!" << llendl; - LLCloudPuff puff; - puff.mPositionGlobal = mCloudPuffs[i].mPositionGlobal; - puff.mAlpha = mCloudPuffs[i].mAlpha; - mCloudPuffs.erase(mCloudPuffs.begin() + i); - new_cgp->mCloudPuffs.push_back(puff); - } - - //llinfos << "Puff count: " << LLCloudPuff::sPuffCount << llendl; -} - -void LLCloudGroup::updatePuffCount() -{ - if (!mVOCloudsp) - { - return; - } - S32 i; - S32 target_puff_count = llround(CLOUD_DENSITY * mDensity); - target_puff_count = llmax(0, target_puff_count); - target_puff_count = llmin(CLOUD_COUNT_MAX, target_puff_count); - S32 current_puff_count = (S32) mCloudPuffs.size(); - // Create a new cloud if we need one - if (current_puff_count < target_puff_count) - { - LLVector3d puff_pos_global; - mCloudPuffs.resize(target_puff_count); - for (i = current_puff_count; i < target_puff_count; i++) - { - puff_pos_global = mVOCloudsp->getPositionGlobal(); - F32 x = ll_frand(256.f/CLOUD_GROUPS_PER_EDGE) - 128.f/CLOUD_GROUPS_PER_EDGE; - F32 y = ll_frand(256.f/CLOUD_GROUPS_PER_EDGE) - 128.f/CLOUD_GROUPS_PER_EDGE; - F32 z = ll_frand(CLOUD_HEIGHT_RANGE) - 0.5f*CLOUD_HEIGHT_RANGE; - puff_pos_global += LLVector3d(x, y, z); - mCloudPuffs[i].mPositionGlobal = puff_pos_global; - mCloudPuffs[i].mAlpha = 0.01f; - LLCloudPuff::sPuffCount++; - } - } - - // Count the number of live puffs - S32 live_puff_count = 0; - for (i = 0; i < (S32) mCloudPuffs.size(); i++) - { - if (mCloudPuffs[i].getLifeState() != LL_PUFF_DYING) - { - live_puff_count++; - } - } - - - // Start killing enough puffs so the live puff count == target puff count - S32 new_dying_count = llmax(0, live_puff_count - target_puff_count); - i = 0; - while (new_dying_count > 0) - { - if (mCloudPuffs[i].getLifeState() != LL_PUFF_DYING) - { - //llinfos << "Killing extra live cloud" << llendl; - mCloudPuffs[i].setLifeState(LL_PUFF_DYING); - mCloudPuffs[i].mRate = CLOUD_DECAY_RATE*CLOUD_UPDATE_RATE; - new_dying_count--; - } - i++; - } - - // Remove fully dead puffs - i = 0; - while (i < (S32) mCloudPuffs.size()) - { - if (mCloudPuffs[i].isDead()) - { - //llinfos << "Removing dead puff!" << llendl; - mCloudPuffs.erase(mCloudPuffs.begin() + i); - LLCloudPuff::sPuffCount--; - } - else - { - i++; - } - } -} - -BOOL LLCloudGroup::inGroup(const LLCloudPuff &puff) const -{ - // Do min/max check on center of the cloud puff - F32 min_x, min_y, max_x, max_y; - F32 delta = 128.f/CLOUD_GROUPS_PER_EDGE; - min_x = mCenterRegion.mV[VX] - delta; - min_y = mCenterRegion.mV[VY] - delta; - max_x = mCenterRegion.mV[VX] + delta; - max_y = mCenterRegion.mV[VY] + delta; - - LLVector3 pos_region = mCloudLayerp->getRegion()->getPosRegionFromGlobal(puff.getPositionGlobal()); - - if ((pos_region.mV[VX] < min_x) - || (pos_region.mV[VY] < min_y) - || (pos_region.mV[VX] > max_x) - || (pos_region.mV[VY] > max_y)) - { - return FALSE; - } - return TRUE; -} - -LLCloudLayer::LLCloudLayer() -: mOriginGlobal(0.0f, 0.0f, 0.0f), - mMetersPerEdge(1.0f), - mMetersPerGrid(1.0f), - mWindp(NULL), - mDensityp(NULL) -{ - S32 i, j; - for (i = 0; i < 4; i++) - { - mNeighbors[i] = NULL; - } - - F32 x, y; - for (i = 0; i < CLOUD_GROUPS_PER_EDGE; i++) - { - y = (0.5f + i)*(256.f/CLOUD_GROUPS_PER_EDGE); - for (j = 0; j < CLOUD_GROUPS_PER_EDGE; j++) - { - x = (0.5f + j)*(256.f/CLOUD_GROUPS_PER_EDGE); - - mCloudGroups[i][j].setCloudLayerp(this); - mCloudGroups[i][j].setCenterRegion(LLVector3(x, y, CLOUD_HEIGHT_MEAN)); - } - } -} - - - -LLCloudLayer::~LLCloudLayer() -{ - destroy(); -} - - -void LLCloudLayer::create(LLViewerRegion *regionp) -{ - llassert(regionp); - - mRegionp = regionp; - mDensityp = new F32 [CLOUD_GRIDS_PER_EDGE * CLOUD_GRIDS_PER_EDGE]; - - U32 i; - for (i = 0; i < CLOUD_GRIDS_PER_EDGE*CLOUD_GRIDS_PER_EDGE; i++) - { - mDensityp[i] = 0.f; - } -} - -void LLCloudLayer::setRegion(LLViewerRegion *regionp) -{ - mRegionp = regionp; -} - -void LLCloudLayer::destroy() -{ - reset(); - - delete [] mDensityp; - mDensityp = NULL; - mWindp = NULL; -} - - -void LLCloudLayer::reset() -{ - // Kill all of the existing puffs - S32 i, j; - - for (i = 0; i < CLOUD_GROUPS_PER_EDGE; i++) - { - for (j = 0; j < CLOUD_GROUPS_PER_EDGE; j++) - { - mCloudGroups[i][j].cleanup(); - } - } -} - -void LLCloudLayer::setWindPointer(LLWind *windp) -{ - if (mWindp) - { - mWindp->setCloudDensityPointer(NULL); - } - mWindp = windp; - if (mWindp) - { - mWindp->setCloudDensityPointer(mDensityp); - } -} - - -void LLCloudLayer::setWidth(F32 width) -{ - mMetersPerEdge = width; - mMetersPerGrid = width / CLOUD_GRIDS_PER_EDGE; -} - - -F32 LLCloudLayer::getDensityRegion(const LLVector3 &pos_region) -{ - // "position" is region-local - S32 i, j, ii, jj; - - i = lltrunc(pos_region.mV[VX] / mMetersPerGrid); - j = lltrunc(pos_region.mV[VY] / mMetersPerGrid); - ii = i + 1; - jj = j + 1; - - - // clamp - if (i >= (S32)CLOUD_GRIDS_PER_EDGE) - { - i = CLOUD_GRIDS_PER_EDGE - 1; - ii = i; - } - else if (i < 0) - { - i = 0; - ii = i; - } - else if (ii >= (S32)CLOUD_GRIDS_PER_EDGE || ii < 0) - { - ii = i; - } - - if (j >= (S32)CLOUD_GRIDS_PER_EDGE) - { - j = CLOUD_GRIDS_PER_EDGE - 1; - jj = j; - } - else if (j < 0) - { - j = 0; - jj = j; - } - else if (jj >= (S32)CLOUD_GRIDS_PER_EDGE || jj < 0) - { - jj = j; - } - - F32 dx = (pos_region.mV[VX] - (F32) i * mMetersPerGrid) / mMetersPerGrid; - F32 dy = (pos_region.mV[VY] - (F32) j * mMetersPerGrid) / mMetersPerGrid; - F32 omdx = 1.0f - dx; - F32 omdy = 1.0f - dy; - - F32 density = dx * dy * *(mDensityp + ii + jj * CLOUD_GRIDS_PER_EDGE) + - dx * omdy * *(mDensityp + i + jj * CLOUD_GRIDS_PER_EDGE) + - omdx * dy * *(mDensityp + ii + j * CLOUD_GRIDS_PER_EDGE) + - omdx * omdy * *(mDensityp + i + j * CLOUD_GRIDS_PER_EDGE); - - return density; -} - -void LLCloudLayer::decompress(LLBitPack &bitpack, LLGroupHeader *group_headerp) -{ - LLPatchHeader patch_header; - - init_patch_decompressor(group_headerp->patch_size); - - // Don't use the packed group_header stride because the strides used on - // simulator and viewer are not equal. - group_headerp->stride = group_headerp->patch_size; // offset required to step up one row - set_group_of_patch_header(group_headerp); - - decode_patch_header(bitpack, &patch_header); - decode_patch(bitpack, gBuffer); - decompress_patch(mDensityp, gBuffer, &patch_header); -} - -void LLCloudLayer::updatePuffs(const F32 dt) -{ - // We want to iterate through all of the cloud groups - // and update their density targets - - S32 i, j; - - for (i = 0; i < CLOUD_GROUPS_PER_EDGE; i++) - { - for (j = 0; j < CLOUD_GROUPS_PER_EDGE; j++) - { - mCloudGroups[i][j].updatePuffs(dt); - } - } -} - -void LLCloudLayer::updatePuffOwnership() -{ - S32 i, j; - - for (i = 0; i < CLOUD_GROUPS_PER_EDGE; i++) - { - for (j = 0; j < CLOUD_GROUPS_PER_EDGE; j++) - { - mCloudGroups[i][j].updatePuffOwnership(); - } - } -} - -void LLCloudLayer::updatePuffCount() -{ - S32 i, j; - - for (i = 0; i < CLOUD_GROUPS_PER_EDGE; i++) - { - for (j = 0; j < CLOUD_GROUPS_PER_EDGE; j++) - { - mCloudGroups[i][j].updatePuffCount(); - } - } -} - -LLCloudGroup *LLCloudLayer::findCloudGroup(const LLCloudPuff &puff) -{ - S32 i, j; - - for (i = 0; i < CLOUD_GROUPS_PER_EDGE; i++) - { - for (j = 0; j < CLOUD_GROUPS_PER_EDGE; j++) - { - if (mCloudGroups[i][j].inGroup(puff)) - { - return &(mCloudGroups[i][j]); - } - } - } - return NULL; -} - - - -void LLCloudLayer::connectNeighbor(LLCloudLayer *cloudp, U32 direction) -{ - if (direction >= 4) - { - // Only care about cardinal 4 directions. - return; - } - - mNeighbors[direction] = cloudp; - if (cloudp) - mNeighbors[direction]->mNeighbors[gDirOpposite[direction]] = this; -} - - -void LLCloudLayer::disconnectNeighbor(U32 direction) -{ - if (direction >= 4) - { - // Only care about cardinal 4 directions. - return; - } - - if (mNeighbors[direction]) - { - mNeighbors[direction]->mNeighbors[gDirOpposite[direction]] = NULL; - mNeighbors[direction] = NULL; - } -} - - -void LLCloudLayer::disconnectAllNeighbors() -{ - S32 i; - for (i = 0; i < 4; i++) - { - disconnectNeighbor(i); - } -} |