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