113 lines
3.3 KiB
C++
113 lines
3.3 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_TextureOperation.h"
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#include "BLI_listbase.h"
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#include "DNA_scene_types.h"
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TextureBaseOperation::TextureBaseOperation() : NodeOperation()
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{
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this->addInputSocket(COM_DT_VECTOR); //offset
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this->addInputSocket(COM_DT_VECTOR); //size
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this->m_texture = NULL;
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this->m_inputSize = NULL;
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this->m_inputOffset = NULL;
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this->m_rd = NULL;
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}
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TextureOperation::TextureOperation() : TextureBaseOperation()
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{
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this->addOutputSocket(COM_DT_COLOR);
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}
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TextureAlphaOperation::TextureAlphaOperation() : TextureBaseOperation()
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{
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this->addOutputSocket(COM_DT_VALUE);
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}
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void TextureBaseOperation::initExecution()
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{
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this->m_inputOffset = getInputSocketReader(0);
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this->m_inputSize = getInputSocketReader(1);
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}
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void TextureBaseOperation::deinitExecution()
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{
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this->m_inputSize = NULL;
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this->m_inputOffset = NULL;
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}
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void TextureBaseOperation::determineResolution(unsigned int resolution[], unsigned int preferredResolution[])
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{
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if (preferredResolution[0] == 0 || preferredResolution[1] == 0) {
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int width = this->m_rd->xsch * this->m_rd->size / 100;
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int height = this->m_rd->ysch * this->m_rd->size / 100;
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resolution[0] = width;
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resolution[1] = height;
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}
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else {
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resolution[0] = preferredResolution[0];
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resolution[1] = preferredResolution[1];
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}
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}
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void TextureAlphaOperation::executePixel(float *color, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[])
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{
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TextureBaseOperation::executePixel(color, x, y, sampler, inputBuffers);
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color[0] = color[3];
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color[1] = 0.0f;
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color[2] = 0.0f;
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color[3] = 0.0f;
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}
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void TextureBaseOperation::executePixel(float *color, float x, float y, PixelSampler sampler, MemoryBuffer *inputBuffers[])
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{
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TexResult texres = {0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0, NULL};
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float textureSize[4];
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float textureOffset[4];
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float vec[3];
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int retval;
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const float cx = this->getWidth() / 2;
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const float cy = this->getHeight() / 2;
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const float u = (cx - x) / this->getWidth() * 2;
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const float v = (cy - y) / this->getHeight() * 2;
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this->m_inputSize->read(textureSize, x, y, sampler, inputBuffers);
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this->m_inputOffset->read(textureOffset, x, y, sampler, inputBuffers);
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vec[0] = textureSize[0] * (u + textureOffset[0]);
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vec[1] = textureSize[1] * (v + textureOffset[1]);
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vec[2] = textureSize[2] * textureOffset[2];
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retval = multitex_ext(this->m_texture, vec, NULL, NULL, 0, &texres);
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if (texres.talpha)
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color[3] = texres.ta;
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else
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color[3] = texres.tin;
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if ((retval & TEX_RGB)) {
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color[0] = texres.tr;
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color[1] = texres.tg;
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color[2] = texres.tb;
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}
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else color[0] = color[1] = color[2] = color[3];
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}
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