Sergey Sharybin
02fad7dca4
Different interpolation methods in compositor could lead to 0.5 pixel offset in final renders. This is because of some inconsistency in integer coordinates which might mean pixel corner or pixel center. Should be all fine now.
133 lines
3.5 KiB
C++
133 lines
3.5 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_MovieClipOperation.h"
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#include "BLI_listbase.h"
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#include "BLI_math.h"
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extern "C" {
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# include "BKE_movieclip.h"
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# include "IMB_imbuf.h"
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}
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#include "BKE_image.h"
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MovieClipBaseOperation::MovieClipBaseOperation() : NodeOperation()
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{
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this->m_movieClip = NULL;
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this->m_movieClipBuffer = NULL;
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this->m_movieClipUser = NULL;
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this->m_movieClipwidth = 0;
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this->m_movieClipheight = 0;
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this->m_framenumber = 0;
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}
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void MovieClipBaseOperation::initExecution()
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{
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if (this->m_movieClip) {
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BKE_movieclip_user_set_frame(this->m_movieClipUser, this->m_framenumber);
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ImBuf *ibuf;
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if (this->m_cacheFrame)
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ibuf = BKE_movieclip_get_ibuf(this->m_movieClip, this->m_movieClipUser);
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else
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ibuf = BKE_movieclip_get_ibuf_flag(this->m_movieClip, this->m_movieClipUser, this->m_movieClip->flag, MOVIECLIP_CACHE_SKIP);
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if (ibuf) {
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this->m_movieClipBuffer = ibuf;
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if (ibuf->rect_float == NULL || ibuf->userflags & IB_RECT_INVALID) {
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IMB_float_from_rect(ibuf);
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ibuf->userflags &= ~IB_RECT_INVALID;
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}
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}
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}
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}
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void MovieClipBaseOperation::deinitExecution()
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{
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if (this->m_movieClipBuffer) {
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IMB_freeImBuf(this->m_movieClipBuffer);
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this->m_movieClipBuffer = NULL;
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}
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}
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void MovieClipBaseOperation::determineResolution(unsigned int resolution[2], unsigned int preferredResolution[2])
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{
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resolution[0] = 0;
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resolution[1] = 0;
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if (this->m_movieClip) {
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int width, height;
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BKE_movieclip_get_size(this->m_movieClip, this->m_movieClipUser, &width, &height);
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resolution[0] = width;
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resolution[1] = height;
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}
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}
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void MovieClipBaseOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
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{
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ImBuf *ibuf = this->m_movieClipBuffer;
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if (ibuf == NULL) {
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zero_v4(output);
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}
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else if (ibuf->rect == NULL && ibuf->rect_float == NULL) {
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/* Happens for multilayer exr, i.e. */
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zero_v4(output);
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}
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else {
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switch (sampler) {
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case COM_PS_NEAREST:
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nearest_interpolation_color(ibuf, NULL, output, x, y);
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break;
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case COM_PS_BILINEAR:
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bilinear_interpolation_color(ibuf, NULL, output, x - 0.5f, y - 0.5f);
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break;
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case COM_PS_BICUBIC:
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bicubic_interpolation_color(ibuf, NULL, output, x - 0.5f, y - 0.5f);
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break;
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}
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}
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}
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MovieClipOperation::MovieClipOperation() : MovieClipBaseOperation()
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{
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this->addOutputSocket(COM_DT_COLOR);
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}
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MovieClipAlphaOperation::MovieClipAlphaOperation() : MovieClipBaseOperation()
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{
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this->addOutputSocket(COM_DT_VALUE);
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}
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void MovieClipAlphaOperation::executePixelSampled(float output[4], float x, float y, PixelSampler sampler)
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{
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MovieClipBaseOperation::executePixelSampled(output, x, y, sampler);
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output[0] = output[3];
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output[1] = 0.0f;
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output[2] = 0.0f;
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output[3] = 0.0f;
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}
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