/* * Copyright 2011, Blender Foundation. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * Contributor: * Jeroen Bakker * Monique Dewanchand */ #include "COM_AntiAliasOperation.h" #include "BLI_math.h" #include "BLI_utildefines.h" #include "MEM_guardedalloc.h" extern "C" { # include "RE_render_ext.h" } AntiAliasOperation::AntiAliasOperation() : NodeOperation() { this->addInputSocket(COM_DT_VALUE); this->addOutputSocket(COM_DT_VALUE); this->m_valueReader = NULL; this->m_buffer = NULL; this->setComplex(true); } void AntiAliasOperation::initExecution() { this->m_valueReader = this->getInputSocketReader(0); NodeOperation::initMutex(); } void AntiAliasOperation::executePixel(float output[4], int x, int y, void *data) { if (y < 0 || (unsigned int)y >= this->m_height || x < 0 || (unsigned int)x >= this->m_width) { output[0] = 0.0f; } else { int offset = y * this->m_width + x; output[0] = this->m_buffer[offset] / 255.0f; } } void AntiAliasOperation::deinitExecution() { this->m_valueReader = NULL; if (this->m_buffer) { MEM_freeN(this->m_buffer); } NodeOperation::deinitMutex(); } bool AntiAliasOperation::determineDependingAreaOfInterest(rcti *input, ReadBufferOperation *readOperation, rcti *output) { rcti imageInput; if (this->m_buffer) { return false; } else { NodeOperation *operation = getInputOperation(0); imageInput.xmax = operation->getWidth(); imageInput.xmin = 0; imageInput.ymax = operation->getHeight(); imageInput.ymin = 0; if (operation->determineDependingAreaOfInterest(&imageInput, readOperation, output) ) { return true; } } return false; } void *AntiAliasOperation::initializeTileData(rcti *rect) { if (this->m_buffer) { return this->m_buffer; } lockMutex(); if (this->m_buffer == NULL) { MemoryBuffer *tile = (MemoryBuffer *)this->m_valueReader->initializeTileData(rect); int size = tile->getHeight() * tile->getWidth(); float *input = tile->getBuffer(); char *valuebuffer = (char *)MEM_mallocN(sizeof(char) * size, __func__); for (int i = 0; i < size; i++) { float in = input[i]; valuebuffer[i] = FTOCHAR(in); } antialias_tagbuf(tile->getWidth(), tile->getHeight(), valuebuffer); this->m_buffer = valuebuffer; } unlockMutex(); return this->m_buffer; }