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/* |
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Teem: Tools to process and visualize scientific data and images . |
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Copyright (C) 2013, 2012, 2011, 2010, 2009 University of Chicago |
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Copyright (C) 2008, 2007, 2006, 2005 Gordon Kindlmann |
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Copyright (C) 2004, 2003, 2002, 2001, 2000, 1999, 1998 University of Utah |
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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 License |
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(LGPL) as published by the Free Software Foundation; either |
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version 2.1 of the License, or (at your option) any later version. |
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The terms of redistributing and/or modifying this software also |
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include exceptions to the LGPL that facilitate static linking. |
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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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You should have received a copy of the GNU Lesser General Public License |
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along with this library; if not, write to Free Software Foundation, Inc., |
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "hoover.h" |
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hooverContext * |
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hooverContextNew() { |
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hooverContext *ctx; |
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ctx = (hooverContext *)calloc(1, sizeof(hooverContext)); |
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if (ctx) { |
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ctx->cam = limnCameraNew(); |
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ELL_3V_SET(ctx->volSize, 0, 0, 0); |
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ELL_3V_SET(ctx->volSpacing, AIR_NAN, AIR_NAN, AIR_NAN); |
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ctx->volCentering = hooverDefVolCentering; |
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ctx->shape = NULL; |
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ctx->imgSize[0] = ctx->imgSize[1] = 0; |
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ctx->imgCentering = hooverDefImgCentering; |
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ctx->user = NULL; |
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ctx->numThreads = 1; |
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ctx->workIdx = 0; |
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ctx->workMutex = NULL; |
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ctx->renderBegin = hooverStubRenderBegin; |
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ctx->threadBegin = hooverStubThreadBegin; |
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ctx->rayBegin = hooverStubRayBegin; |
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ctx->sample = hooverStubSample; |
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ctx->rayEnd = hooverStubRayEnd; |
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ctx->threadEnd = hooverStubThreadEnd; |
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ctx->renderEnd = hooverStubRenderEnd; |
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} |
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return(ctx); |
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} |
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int |
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hooverContextCheck(hooverContext *ctx) { |
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static const char me[]="hooverContextCheck"; |
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int sxe, sye, sze, minSize, centr; |
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if (!ctx) { |
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biffAddf(HOOVER, "%s: got NULL pointer", me); |
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return 1; |
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} |
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if (airEnumValCheck(nrrdCenter, ctx->imgCentering)) { |
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biffAddf(HOOVER, "%s: pixel centering (%d) invalid", |
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me, ctx->imgCentering); |
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return 1; |
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} |
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centr = (ctx->shape ? ctx->shape->center : ctx->volCentering); |
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if (airEnumValCheck(nrrdCenter, centr)) { |
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biffAddf(HOOVER, "%s: voxel centering (%d) invalid", me, centr); |
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return 1; |
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} |
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if (limnCameraAspectSet(ctx->cam, |
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ctx->imgSize[0], ctx->imgSize[1], ctx->imgCentering) |
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|| limnCameraUpdate(ctx->cam)) { |
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biffMovef(HOOVER, LIMN, "%s: trouble setting up camera", me); |
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return 1; |
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} |
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if (ctx->shape) { |
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if (!ELL_4M_EXISTS(ctx->shape->ItoW)) { |
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biffAddf(HOOVER, "%s: given shape doesn't seem to be set", me); |
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return 1; |
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} |
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} else { |
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minSize = (nrrdCenterCell == centr ? 1 : 2); |
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if (!(ctx->volSize[0] >= minSize |
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&& ctx->volSize[1] >= minSize |
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&& ctx->volSize[2] >= minSize)) { |
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biffAddf(HOOVER, "%s: volume dimensions (%dx%dx%d) too small", me, |
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ctx->volSize[0], ctx->volSize[1], ctx->volSize[2]); |
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return 1; |
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} |
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sxe = AIR_EXISTS(ctx->volSpacing[0]); |
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sye = AIR_EXISTS(ctx->volSpacing[1]); |
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sze = AIR_EXISTS(ctx->volSpacing[2]); |
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if (!sxe && !sye && !sze) { |
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/* none of the incoming spacings existed, we'll go out on a limb |
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and assume unit spacing */ |
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ctx->volSpacing[0] = nrrdDefaultSpacing; |
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ctx->volSpacing[1] = ctx->volSpacing[2] = ctx->volSpacing[0]; |
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fprintf(stderr, "%s: WARNING: assuming spacing %g for all axes\n", |
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me, ctx->volSpacing[0]); |
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/* HEY : nrrdDefaultSpacing need not be the same as gageParm's |
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defaultSpacing, but we don't know anything about gage here, |
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so what else can we do? */ |
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} else if (sxe && sye && sze) { |
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/* all existed */ |
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if (!(ctx->volSpacing[0] > 0.0 |
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&& ctx->volSpacing[1] > 0.0 |
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&& ctx->volSpacing[2] > 0.0)) { |
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biffAddf(HOOVER, "%s: volume spacing (%gx%gx%g) invalid", me, |
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ctx->volSpacing[0], ctx->volSpacing[1], ctx->volSpacing[2]); |
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return 1; |
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} |
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} else { |
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/* some existed, some didn't */ |
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biffAddf(HOOVER, "%s: spacings %g, %g, %g don't all exist or not", me, |
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ctx->volSpacing[0], ctx->volSpacing[1], ctx->volSpacing[2]); |
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return 1; |
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} |
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} |
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if (!(ctx->imgSize[0] > 0 && ctx->imgSize[1] > 0)) { |
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biffAddf(HOOVER, "%s: image dimensions (%dx%d) invalid", me, |
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ctx->imgSize[0], ctx->imgSize[1]); |
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return 1; |
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} |
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if (!(ctx->numThreads >= 1)) { |
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biffAddf(HOOVER, "%s: number threads (%d) invalid", me, ctx->numThreads); |
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return 1; |
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} |
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if (!(ctx->numThreads <= HOOVER_THREAD_MAX)) { |
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biffAddf(HOOVER, "%s: sorry, number threads (%d) > max (%d)", me, |
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ctx->numThreads, HOOVER_THREAD_MAX); |
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return 1; |
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} |
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if (!ctx->renderBegin) { |
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biffAddf(HOOVER, "%s: need a non-NULL begin rendering callback", me); |
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return 1; |
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} |
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if (!ctx->rayBegin) { |
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biffAddf(HOOVER, "%s: need a non-NULL begin ray callback", me); |
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return 1; |
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} |
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if (!ctx->threadBegin) { |
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biffAddf(HOOVER, "%s: need a non-NULL begin thread callback", me); |
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return 1; |
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} |
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if (!ctx->sample) { |
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biffAddf(HOOVER, "%s: need a non-NULL sampler callback function", me); |
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return 1; |
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} |
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if (!ctx->rayEnd) { |
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biffAddf(HOOVER, "%s: need a non-NULL end ray callback", me); |
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return 1; |
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} |
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if (!ctx->threadEnd) { |
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biffAddf(HOOVER, "%s: need a non-NULL end thread callback", me); |
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return 1; |
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} |
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if (!ctx->renderEnd) { |
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biffAddf(HOOVER, "%s: need a non-NULL end render callback", me); |
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return 1; |
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} |
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return 0; |
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} |
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void |
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hooverContextNix(hooverContext *ctx) { |
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if (ctx) { |
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limnCameraNix(ctx->cam); |
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/* workMutex is cleaned up at end of render */ |
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free(ctx); |
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} |
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} |
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