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ofxsTransform3x3.cpp
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ofxsTransform3x3.cpp
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/* -*- mode: c++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; -*- */
/* ***** BEGIN LICENSE BLOCK *****
* This file is part of openfx-supportext <https://github.com/NatronGitHub/openfx-supportext>,
* (C) 2018-2021 The Natron Developers
* (C) 2013-2018 INRIA
*
* openfx-supportext 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.
*
* openfx-supportext 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 openfx-supportext. If not, see <http://www.gnu.org/licenses/gpl-2.0.html>
* ***** END LICENSE BLOCK ***** */
/*
* OFX Transform3x3 plugin: a base plugin for 2D homographic transform,
* represented by a 3x3 matrix.
*/
/*
Although the indications from nuke/fnOfxExtensions.h were followed, and the
kFnOfxImageEffectActionGetTransform action was implemented in the Support
library, that action is never called by the Nuke host.
The extension was implemented as specified in Natron and in the Support library.
@see gHostDescription.canTransform, ImageEffectDescriptor::setCanTransform(),
and ImageEffect::getTransform().
There is also an open question about how the last plugin in a transform chain
may get the concatenated transform from upstream, the untransformed source image,
concatenate its own transform and apply the resulting transform in its render
action.
Our solution is to have kFnOfxImageEffectCanTransform set on source clips for which
a transform can be attached to fetched images.
@see ClipDescriptor::setCanTransform().
In this case, images fetched from the host may have a kFnOfxPropMatrix2D attached,
which must be combined with the transformation applied by the effect (which
may be any deformation function, not only a homography).
@see ImageBase::getTransform() and ImageBase::getTransformIsIdentity
*/
// Uncomment the following to enable the experimental host transform code.
#define ENABLE_HOST_TRANSFORM
#include <cfloat> // DBL_MAX
#include <memory>
#include <algorithm>
#include "ofxsTransform3x3.h"
#include "ofxsTransform3x3Processor.h"
#include "ofxsCoords.h"
#include "ofxsShutter.h"
#ifndef ENABLE_HOST_TRANSFORM
#undef OFX_EXTENSIONS_NUKE // host transform is the only nuke extension used
#endif
#ifdef OFX_EXTENSIONS_NUKE
#include "nuke/fnOfxExtensions.h"
#endif
#define kSupportsTiles 1
#define kSupportsMultiResolution 1
#define kSupportsRenderScale 1
#define kRenderThreadSafety eRenderFullySafe
using namespace OFX;
using std::string;
// It would be nice to be able to cache the set of transforms (with motion blur) used to compute the
// current frame between two renders.
// Unfortunately, we cannot rely on the host sending changedParam() when the animation changes
// (Nuke doesn't call the action when a linked animation is changed),
// nor on dst->getUniqueIdentifier (which is "ffffffffffffffff" on Nuke)
#define kTransform3x3MotionBlurCount 1000 // number of transforms used in the motion
namespace OFX {
Transform3x3Plugin::Transform3x3Plugin(OfxImageEffectHandle handle,
bool masked,
Transform3x3ParamsTypeEnum paramsType)
: ImageEffect(handle)
, _dstClip(NULL)
, _srcClip(NULL)
, _maskClip(NULL)
, _paramsType(paramsType)
, _invert(NULL)
, _filter(NULL)
, _clamp(NULL)
, _blackOutside(NULL)
, _motionblur(NULL)
, _dirBlurAmount(NULL)
, _dirBlurCentered(NULL)
, _dirBlurFading(NULL)
, _directionalBlur(NULL)
, _shutter(NULL)
, _shutteroffset(NULL)
, _shuttercustomoffset(NULL)
, _masked(masked)
, _mix(NULL)
, _maskApply(NULL)
, _maskInvert(NULL)
{
_dstClip = fetchClip(kOfxImageEffectOutputClipName);
assert(1 <= _dstClip->getPixelComponentCount() && _dstClip->getPixelComponentCount() <= 4);
_srcClip = getContext() == eContextGenerator ? NULL : fetchClip(kOfxImageEffectSimpleSourceClipName);
assert( !_srcClip || !_srcClip->isConnected() || (1 <= _srcClip->getPixelComponentCount() && _srcClip->getPixelComponentCount() <= 4) );
// name of mask clip depends on the context
if (masked) {
_maskClip = fetchClip(getContext() == eContextPaint ? "Brush" : "Mask");
assert(!_maskClip || !_maskClip->isConnected() || _maskClip->getPixelComponents() == ePixelComponentAlpha);
}
if ( paramExists(kParamTransform3x3Invert) ) {
// Transform3x3-GENERIC
_invert = fetchBooleanParam(kParamTransform3x3Invert);
// GENERIC
_filter = fetchChoiceParam(kParamFilterType);
_clamp = fetchBooleanParam(kParamFilterClamp);
_blackOutside = fetchBooleanParam(kParamFilterBlackOutside);
assert(_invert && _filter && _clamp && _blackOutside);
if ( paramExists(kParamTransform3x3MotionBlur) ) {
_motionblur = fetchDoubleParam(kParamTransform3x3MotionBlur); // GodRays may not have have _motionblur
assert(_motionblur);
}
if (paramsType == eTransform3x3ParamsTypeMotionBlur) {
_directionalBlur = fetchBooleanParam(kParamTransform3x3DirectionalBlur);
_shutter = fetchDoubleParam(kParamShutter);
_shutteroffset = fetchChoiceParam(kParamShutterOffset);
_shuttercustomoffset = fetchDoubleParam(kParamShutterCustomOffset);
assert(_directionalBlur && _shutter && _shutteroffset && _shuttercustomoffset);
}
if (masked) {
_mix = fetchDoubleParam(kParamMix);
_maskInvert = fetchBooleanParam(kParamMaskInvert);
assert(_mix && _maskInvert);
}
if (paramsType == eTransform3x3ParamsTypeMotionBlur) {
bool directionalBlur;
_directionalBlur->getValue(directionalBlur);
_shutter->setEnabled(!directionalBlur);
_shutteroffset->setEnabled(!directionalBlur);
_shuttercustomoffset->setEnabled(!directionalBlur);
}
}
}
Transform3x3Plugin::~Transform3x3Plugin()
{
}
////////////////////////////////////////////////////////////////////////////////
/** @brief render for the filter */
////////////////////////////////////////////////////////////////////////////////
// basic plugin render function, just a skelington to instantiate templates from
/* set up and run a processor */
void
Transform3x3Plugin::setupAndProcess(Transform3x3ProcessorBase &processor,
const RenderArguments &args)
{
assert(!_invert || _motionblur); // this method should be overridden in GodRays
const double time = args.time;
auto_ptr<Image> dst( _dstClip->fetchImage(time) );
if ( !dst.get() ) {
throwSuiteStatusException(kOfxStatFailed);
return;
}
# ifndef NDEBUG
BitDepthEnum dstBitDepth = dst->getPixelDepth();
PixelComponentEnum dstComponents = dst->getPixelComponents();
if ( ( dstBitDepth != _dstClip->getPixelDepth() ) ||
( dstComponents != _dstClip->getPixelComponents() ) ) {
setPersistentMessage(Message::eMessageError, "", "OFX Host gave image with wrong depth or components");
throwSuiteStatusException(kOfxStatFailed);
return;
}
checkBadRenderScaleOrField(dst, args);
# endif
auto_ptr<const Image> src( ( _srcClip && _srcClip->isConnected() ) ?
_srcClip->fetchImage(args.time) : 0 );
size_t invtransformsizealloc = 0;
size_t invtransformsize = 0;
std::vector<Matrix3x3> invtransform;
std::vector<double> invtransformalpha;
double motionblur = 0.;
bool directionalBlur = (_paramsType != eTransform3x3ParamsTypeNone);
double amountFrom = 0.;
double amountTo = 1.;
if (_dirBlurAmount) {
_dirBlurAmount->getValueAtTime(time, amountTo);
}
if (_dirBlurCentered) {
bool centered;
_dirBlurCentered->getValueAtTime(time, centered);
if (centered) {
amountFrom = -amountTo;
}
}
bool blackOutside = false;
double mix = 1.;
if ( !src.get() ) {
// no source image, use a dummy transform
invtransformsizealloc = 1;
invtransform.resize(invtransformsizealloc);
invtransformsize = 1;
invtransform[0](0,0) = 0.;
invtransform[0](0,1) = 0.;
invtransform[0](0,2) = 0.;
invtransform[0](1,0) = 0.;
invtransform[0](1,1) = 0.;
invtransform[0](1,2) = 0.;
invtransform[0](2,0) = 0.;
invtransform[0](2,1) = 0.;
invtransform[0](2,2) = 1.;
} else {
# ifndef NDEBUG
BitDepthEnum dstBitDepth = dst->getPixelDepth();
PixelComponentEnum dstComponents = dst->getPixelComponents();
BitDepthEnum srcBitDepth = src->getPixelDepth();
PixelComponentEnum srcComponents = src->getPixelComponents();
if ( (srcBitDepth != dstBitDepth) || (srcComponents != dstComponents) ) {
throwSuiteStatusException(kOfxStatFailed);
return;
}
# endif
bool invert = false;
if (_invert) {
_invert->getValueAtTime(time, invert);
}
if (_blackOutside) {
_blackOutside->getValueAtTime(time, blackOutside);
}
if (_masked && _mix) {
_mix->getValueAtTime(time, mix);
}
if (_motionblur) {
_motionblur->getValueAtTime(time, motionblur);
}
if (_directionalBlur) {
_directionalBlur->getValueAtTime(time, directionalBlur);
}
double shutter = 0.;
if (!directionalBlur) {
if (_shutter) {
_shutter->getValueAtTime(time, shutter);
}
}
const bool fielded = args.fieldToRender == eFieldLower || args.fieldToRender == eFieldUpper;
const double srcpixelAspectRatio = src->getPixelAspectRatio();
const double dstpixelAspectRatio = _dstClip->getPixelAspectRatio();
int view = 0;
#if defined(OFX_EXTENSIONS_VEGAS) || defined(OFX_EXTENSIONS_NUKE)
view = args.renderView;
#endif
if ( (shutter != 0.) && (motionblur != 0.) ) {
invtransformsizealloc = kTransform3x3MotionBlurCount;
invtransform.resize(invtransformsizealloc);
assert(_shutteroffset);
ShutterOffsetEnum shutteroffset = (ShutterOffsetEnum)_shutteroffset->getValueAtTime(time);
double shuttercustomoffset;
assert(_shuttercustomoffset);
_shuttercustomoffset->getValueAtTime(time, shuttercustomoffset);
invtransformsize = getInverseTransforms(time, view, args.renderScale, fielded, srcpixelAspectRatio, dstpixelAspectRatio, invert, shutter, shutteroffset, shuttercustomoffset, &invtransform.front(), invtransformsizealloc);
} else if (directionalBlur) {
invtransformsizealloc = kTransform3x3MotionBlurCount;
invtransform.resize(invtransformsizealloc);
invtransformalpha.resize(invtransformsizealloc);
invtransformsize = getInverseTransformsBlur(time, view, args.renderScale, fielded, srcpixelAspectRatio, dstpixelAspectRatio, invert, amountFrom, amountTo, &invtransform.front(), &invtransformalpha.front(), invtransformsizealloc);
// normalize alpha, and apply gamma
double fading = 0.;
if (_dirBlurFading) {
_dirBlurFading->getValueAtTime(time, fading);
}
if (fading <= 0.) {
std::fill(invtransformalpha.begin(), invtransformalpha.end(), 1.);
} else {
for (size_t i = 0; i < invtransformalpha.size(); ++i) {
invtransformalpha[i] = std::pow(1. - std::abs(invtransformalpha[i]) / amountTo, fading);
}
}
} else {
invtransformsizealloc = 1;
invtransform.resize(invtransformsizealloc);
invtransformsize = 1;
bool success = getInverseTransformCanonical(time, view, 1., invert, &invtransform[0]); // virtual function
if (!success) {
invtransform[0](0,0) = 0.;
invtransform[0](0,1) = 0.;
invtransform[0](0,2) = 0.;
invtransform[0](1,0) = 0.;
invtransform[0](1,1) = 0.;
invtransform[0](1,2) = 0.;
invtransform[0](2,0) = 0.;
invtransform[0](2,1) = 0.;
invtransform[0](2,2) = 1.;
} else {
Matrix3x3 canonicalToPixel = ofxsMatCanonicalToPixel(srcpixelAspectRatio, args.renderScale.x,
args.renderScale.y, fielded);
Matrix3x3 pixelToCanonical = ofxsMatPixelToCanonical(dstpixelAspectRatio, args.renderScale.x,
args.renderScale.y, fielded);
invtransform[0] = canonicalToPixel * invtransform[0] * pixelToCanonical;
}
}
if (invtransformsize == 1) {
motionblur = 0.;
}
#ifdef OFX_EXTENSIONS_NUKE
// compose with the input transform
if ( !src->getTransformIsIdentity() ) {
double srcTransform[9]; // transform to apply to the source image, in pixel coordinates, from source to destination
src->getTransform(srcTransform);
Matrix3x3 srcTransformMat;
srcTransformMat(0,0) = srcTransform[0];
srcTransformMat(0,1) = srcTransform[1];
srcTransformMat(0,2) = srcTransform[2];
srcTransformMat(1,0) = srcTransform[3];
srcTransformMat(1,1) = srcTransform[4];
srcTransformMat(1,2) = srcTransform[5];
srcTransformMat(2,0) = srcTransform[6];
srcTransformMat(2,1) = srcTransform[7];
srcTransformMat(2,2) = srcTransform[8];
// invert it
Matrix3x3 srcTransformInverse;
if ( srcTransformMat.inverse(&srcTransformInverse) ) {
for (size_t i = 0; i < invtransformsize; ++i) {
invtransform[i] = srcTransformInverse * invtransform[i];
}
}
}
#endif
}
// auto ptr for the mask.
bool doMasking = ( _masked && ( !_maskApply || _maskApply->getValueAtTime(args.time) ) && _maskClip && _maskClip->isConnected() );
auto_ptr<const Image> mask(doMasking ? _maskClip->fetchImage(args.time) : 0);
if (doMasking) {
bool maskInvert = false;
if (_maskInvert) {
_maskInvert->getValueAtTime(time, maskInvert);
}
// say we are masking
processor.doMasking(true);
// Set it in the processor
processor.setMaskImg(mask.get(), maskInvert);
}
// set the images
processor.setDstImg( dst.get() );
processor.setSrcImg( src.get() );
// set the render window
processor.setRenderWindow(args.renderWindow, args.renderScale);
assert(invtransform.size() && invtransformsize);
processor.setValues(&invtransform.front(),
invtransformalpha.empty() ? 0 : &invtransformalpha.front(),
invtransformsize,
blackOutside,
motionblur,
mix);
// Call the base class process member, this will call the derived templated process code
processor.process();
} // setupAndProcess
// Compute the bounding box of the transform of four points representing a quadrilateral.
// - If a point has a negative Z, it is not taken into account (thus, if all points have a negative Z, the region is empty)
// - If two consecutive points have a chage of Z-sign, find a point close to the point with the negative z with a Z equal to 0.
// This gives a direction which must be fully included in the rod, and thus a full quadrant must be included, ie an infinite
// value for one of the x bounds and an infinite value for one of the y bounds.
static void
ofxsTransformRegionFromPoints(const Point3D p[4],
OfxRectD &rod)
{
// extract the x/y bounds
double x1, y1, x2, y2;
bool empty = true;
int i = 0, j = 1;
for (; i < 4; ++i, j = (j + 1) % 4) {
if (p[i].z > 0) {
double x = p[i].x / p[i].z;
double y = p[i].y / p[i].z;
if (empty) {
empty = false;
x1 = x2 = x;
y1 = y2 = y;
} else {
if (x < x1) {
x1 = x;
} else if (x > x2) {
x2 = x;
}
if (y < y1) {
y1 = y;
} else if (y > y2) {
y2 = y;
}
}
} else if (p[j].z > 0) {
// add next point if set is empty
if (empty) {
empty = false;
x1 = x2 = p[j].x / p[j].z;
y1 = y2 = p[j].y / p[j].z;
}
}
if ( (p[i].z > 0 && p[j].z <= 0) ||
(p[i].z <= 0 && p[j].z > 0) ) {
// find position of the z=0 point on the line
double a = -p[i].z / (p[j].z - p[i].z);
// compute infinite direction
double dx = p[i].x + a * (p[j].x - p[i].x);
double dy = p[i].y + a * (p[j].y - p[i].y);
// add next point if set is empty
if (empty) {
empty = false;
x1 = x2 = p[j].x / p[j].z;
y1 = y2 = p[j].y / p[j].z;
}
// add the full quadrant
if (dx < 0) {
x1 = kOfxFlagInfiniteMin;
} else if (dx > 0) {
x2 = kOfxFlagInfiniteMax;
}
if (dy < 0) {
y1 = kOfxFlagInfiniteMin;
} else if (dy > 0) {
y2 = kOfxFlagInfiniteMax;
}
}
}
if (empty) {
rod.x1 = rod.x2 = rod.y1 = rod.y2 = 0;
} else {
rod.x1 = x1;
rod.x2 = x2;
rod.y1 = y1;
rod.y2 = y2;
}
assert(rod.x1 <= rod.x2 && rod.y1 <= rod.y2);
} // ofxsTransformRegionFromPoints
// compute the bounding box of the transform of a rectangle
static void
ofxsTransformRegionFromRoD(const OfxRectD &srcRoD,
const Matrix3x3 &transform,
Point3D p[4],
OfxRectD &rod)
{
/// now transform the 4 corners of the source clip to the output image
p[0] = transform * Point3D(srcRoD.x1, srcRoD.y1, 1);
p[1] = transform * Point3D(srcRoD.x1, srcRoD.y2, 1);
p[2] = transform * Point3D(srcRoD.x2, srcRoD.y2, 1);
p[3] = transform * Point3D(srcRoD.x2, srcRoD.y1, 1);
ofxsTransformRegionFromPoints(p, rod);
}
void
Transform3x3Plugin::transformRegion(const OfxRectD &rectFrom,
double time,
int view,
bool invert,
double motionblur,
bool directionalBlur,
double amountFrom,
double amountTo,
double shutter,
ShutterOffsetEnum shutteroffset,
double shuttercustomoffset,
bool isIdentity,
OfxRectD *rectTo)
{
// Algorithm:
// - Compute positions of the four corners at start and end of shutter, and every multiple of 0.25 within this range.
// - Update the bounding box from these positions.
// - At the end, expand the bounding box by the maximum L-infinity distance between consecutive positions of each corner.
OfxRangeD range;
bool hasmotionblur = ( (shutter != 0. || directionalBlur) && motionblur != 0. );
if (hasmotionblur && !directionalBlur) {
shutterRange(time, shutter, shutteroffset, shuttercustomoffset, &range);
} else {
///if is identity return the input rod instead of transforming
if (isIdentity) {
*rectTo = rectFrom;
return;
}
range.min = range.max = time;
}
// initialize with a super-empty RoD (note that max and min are reversed)
rectTo->x1 = kOfxFlagInfiniteMax;
rectTo->x2 = kOfxFlagInfiniteMin;
rectTo->y1 = kOfxFlagInfiniteMax;
rectTo->y2 = kOfxFlagInfiniteMin;
double t = range.min;
bool first = true;
bool last = !hasmotionblur; // ony one iteration if there is no motion blur
bool finished = false;
double expand = 0.;
double amount = 1.;
int dirBlurIter = 0;
Point3D p_prev[4];
while (!finished) {
// compute transformed positions
OfxRectD thisRoD;
Matrix3x3 transform;
bool success = getInverseTransformCanonical(t, view, amountFrom + amount * (amountTo - amountFrom), invert, &transform); // RoD is computed using the *DIRECT* transform, which is why we use !invert
if (!success) {
// return infinite region
rectTo->x1 = kOfxFlagInfiniteMin;
rectTo->x2 = kOfxFlagInfiniteMax;
rectTo->y1 = kOfxFlagInfiniteMin;
rectTo->y2 = kOfxFlagInfiniteMax;
return;
}
Point3D p[4];
ofxsTransformRegionFromRoD(rectFrom, transform, p, thisRoD);
// update min/max
Coords::rectBoundingBox(*rectTo, thisRoD, rectTo);
// if first iteration, continue
if (first) {
first = false;
} else {
// compute the L-infinity distance between consecutive tested points
expand = (std::max)( expand, std::fabs(p_prev[0].x - p[0].x) );
expand = (std::max)( expand, std::fabs(p_prev[0].y - p[0].y) );
expand = (std::max)( expand, std::fabs(p_prev[1].x - p[1].x) );
expand = (std::max)( expand, std::fabs(p_prev[1].y - p[1].y) );
expand = (std::max)( expand, std::fabs(p_prev[2].x - p[2].x) );
expand = (std::max)( expand, std::fabs(p_prev[2].y - p[2].y) );
expand = (std::max)( expand, std::fabs(p_prev[3].x - p[3].x) );
expand = (std::max)( expand, std::fabs(p_prev[3].y - p[3].y) );
}
if (last) {
finished = true;
} else {
// prepare for next iteration
p_prev[0] = p[0];
p_prev[1] = p[1];
p_prev[2] = p[2];
p_prev[3] = p[3];
if (directionalBlur) {
const int dirBlurIterMax = 8;
++dirBlurIter;
amount = 1. - dirBlurIter / (double)dirBlurIterMax;
last = dirBlurIter == dirBlurIterMax;
} else {
t = std::floor(t * 4 + 1) / 4; // next quarter-frame
if (t >= range.max) {
// last iteration should be done with range.max
t = range.max;
last = true;
}
}
}
}
// expand to take into account errors due to motion blur
if (rectTo->x1 > kOfxFlagInfiniteMin) {
rectTo->x1 -= expand;
}
if (rectTo->x2 < kOfxFlagInfiniteMax) {
rectTo->x2 += expand;
}
if (rectTo->y1 > kOfxFlagInfiniteMin) {
rectTo->y1 -= expand;
}
if (rectTo->y2 < kOfxFlagInfiniteMax) {
rectTo->y2 += expand;
}
} // transformRegion
// override the rod call
// Transform3x3-GENERIC
// the RoD should at least contain the region of definition of the source clip,
// which will be filled with black or by continuity.
bool
Transform3x3Plugin::getRegionOfDefinition(const RegionOfDefinitionArguments &args,
OfxRectD &rod)
{
if (!_srcClip || !_srcClip->isConnected()) {
return false;
}
const double time = args.time;
const OfxRectD& srcRoD = _srcClip->getRegionOfDefinition(time);
if ( Coords::rectIsInfinite(srcRoD) ) {
// return an infinite RoD
rod.x1 = kOfxFlagInfiniteMin;
rod.x2 = kOfxFlagInfiniteMax;
rod.y1 = kOfxFlagInfiniteMin;
rod.y2 = kOfxFlagInfiniteMax;
return true;
}
if ( Coords::rectIsEmpty(srcRoD) ) {
// return an empty RoD
rod.x1 = 0.;
rod.x2 = 0.;
rod.y1 = 0.;
rod.y2 = 0.;
return true;
}
double mix = 1.;
bool doMasking = ( ( !_maskApply || _maskApply->getValueAtTime(args.time) ) && _maskClip && _maskClip->isConnected() );
if (doMasking && _mix) {
_mix->getValueAtTime(time, mix);
if (mix == 0.) {
// identity transform
rod = srcRoD;
return true;
}
}
bool invert = false;
if (_invert) {
_invert->getValueAtTime(time, invert);
}
invert = !invert; // only for getRegionOfDefinition
double motionblur = 1.; // default for GodRays
if (_motionblur) {
_motionblur->getValueAtTime(time, motionblur);
}
bool directionalBlur = (_paramsType != eTransform3x3ParamsTypeNone);
double amountFrom = 0.;
double amountTo = 1.;
if (_dirBlurAmount) {
_dirBlurAmount->getValueAtTime(time, amountTo);
}
if (_dirBlurCentered) {
bool centered;
_dirBlurCentered->getValueAtTime(time, centered);
if (centered) {
amountFrom = -amountTo;
}
}
double shutter = 0.;
ShutterOffsetEnum shutteroffset = eShutterOffsetCentered;
double shuttercustomoffset = 0.;
if (_directionalBlur) {
directionalBlur = _directionalBlur->getValueAtTime(time);
shutter = _shutter->getValueAtTime(time);
shutteroffset = (ShutterOffsetEnum)_shutteroffset->getValueAtTime(time);
shuttercustomoffset = _shuttercustomoffset->getValueAtTime(time);
}
bool identity = isIdentity(args.time);
// set rod from srcRoD
#ifdef OFX_EXTENSIONS_NUKE
const int view = args.view;
#else
const int view = 0;
#endif
transformRegion(srcRoD, time, view, invert, motionblur, directionalBlur, amountFrom, amountTo, shutter, shutteroffset, shuttercustomoffset, identity, &rod);
// If identity do not expand for black outside, otherwise we would never be able to have identity.
// We want the RoD to be the same as the src RoD when we are identity.
if (!identity) {
bool blackOutside = false;
if (_blackOutside) {
_blackOutside->getValueAtTime(time, blackOutside);
}
ofxsFilterExpandRoD(this, _dstClip->getPixelAspectRatio(), args.renderScale, blackOutside, &rod);
}
if ( doMasking && ( (mix != 1.) || _maskClip->isConnected() ) ) {
// for masking or mixing, we also need the source image.
// compute the union of both RODs
Coords::rectBoundingBox(rod, srcRoD, &rod);
}
// say we set it
return true;
} // getRegionOfDefinition
// override the roi call
// Transform3x3-GENERIC
// Required if the plugin requires a region from the inputs which is different from the rendered region of the output.
// (this is the case for transforms)
// It may be difficult to implement for complicated transforms:
// consequently, these transforms cannot support tiles.
void
Transform3x3Plugin::getRegionsOfInterest(const RegionsOfInterestArguments &args,
RegionOfInterestSetter &rois)
{
if (!_srcClip || !_srcClip->isConnected()) {
return;
}
const double time = args.time;
const OfxRectD roi = args.regionOfInterest;
OfxRectD srcRoI;
double mix = 1.;
bool doMasking = ( ( !_maskApply || _maskApply->getValueAtTime(args.time) ) && _maskClip && _maskClip->isConnected() );
if (doMasking) {
_mix->getValueAtTime(time, mix);
if (mix == 0.) {
// identity transform
srcRoI = roi;
rois.setRegionOfInterest(*_srcClip, srcRoI);
return;
}
}
bool invert = false;
if (_invert) {
_invert->getValueAtTime(time, invert);
}
//invert = !invert; // only for getRegionOfDefinition
double motionblur = 1; // default for GodRays
if (_motionblur) {
_motionblur->getValueAtTime(time, motionblur);
}
bool directionalBlur = (_paramsType != eTransform3x3ParamsTypeNone);
double amountFrom = 0.;
double amountTo = 1.;
if (_dirBlurAmount) {
_dirBlurAmount->getValueAtTime(time, amountTo);
}
if (_dirBlurCentered) {
bool centered;
_dirBlurCentered->getValueAtTime(time, centered);
if (centered) {
amountFrom = -amountTo;
}
}
double shutter = 0.;
ShutterOffsetEnum shutteroffset = eShutterOffsetCentered;
double shuttercustomoffset = 0.;
if (_directionalBlur) {
directionalBlur = _directionalBlur->getValueAtTime(time);
shutter = _shutter->getValueAtTime(time);
shutteroffset = (ShutterOffsetEnum)_shutteroffset->getValueAtTime(time);
shuttercustomoffset = _shuttercustomoffset->getValueAtTime(time);
}
#ifdef OFX_EXTENSIONS_NUKE
const int view = args.view;
#else
const int view = 0;
#endif
// set srcRoI from roi
transformRegion(roi, time, view, invert, motionblur, directionalBlur, amountFrom, amountTo, shutter, shutteroffset, shuttercustomoffset, isIdentity(time), &srcRoI);
FilterEnum filter = eFilterCubic;
if (_filter) {
filter = (FilterEnum)_filter->getValueAtTime(time);
}
assert(srcRoI.x1 <= srcRoI.x2 && srcRoI.y1 <= srcRoI.y2);
ofxsFilterExpandRoI(roi, _srcClip->getPixelAspectRatio(), args.renderScale, filter, doMasking, mix, &srcRoI);
if ( Coords::rectIsInfinite(srcRoI) ) {
// RoI cannot be infinite.
// This is not a mathematically correct solution, but better than nothing: set to the
// bounding box of the input RoD and the project size.
const OfxRectD srcRoD = _srcClip->getRegionOfDefinition(args.time);
Coords::rectIntersection(srcRoI, srcRoD, &srcRoI);
OfxPointD size = getProjectSize();
OfxPointD offset = getProjectOffset();
OfxRectD projectRoD;
projectRoD.x1 = offset.x;
projectRoD.y1 = offset.y;
projectRoD.x2 = offset.x + size.x;
projectRoD.y2 = offset.y + size.y;
Coords::rectBoundingBox(srcRoI, projectRoD, &srcRoI);
}
if ( _masked && (mix != 1.) ) {
// compute the bounding box with the default ROI
Coords::rectBoundingBox(srcRoI, args.regionOfInterest, &srcRoI);
}
// no need to set it on mask (the default ROI is OK)
rois.setRegionOfInterest(*_srcClip, srcRoI);
} // getRegionsOfInterest
template <class PIX, int nComponents, int maxValue, bool masked>
void
Transform3x3Plugin::renderInternalForBitDepth(const RenderArguments &args)
{
const double time = args.time;
FilterEnum filter = args.renderQualityDraft ? eFilterImpulse : eFilterCubic;
if (!args.renderQualityDraft && _filter) {
filter = (FilterEnum)_filter->getValueAtTime(time);
}
bool clamp = false;
if (_clamp) {
clamp = _clamp->getValueAtTime(time);
}
// as you may see below, some filters don't need explicit clamping, since they are
// "clamped" by construction.
switch (filter) {
case eFilterImpulse: {
Transform3x3Processor<PIX, nComponents, maxValue, masked, eFilterImpulse, false> fred(*this);
setupAndProcess(fred, args);
break;
}
case eFilterBox: {
Transform3x3Processor<PIX, nComponents, maxValue, masked, eFilterBox, false> fred(*this);
setupAndProcess(fred, args);
break;
}
case eFilterBilinear: {
Transform3x3Processor<PIX, nComponents, maxValue, masked, eFilterBilinear, false> fred(*this);
setupAndProcess(fred, args);
break;
}
case eFilterCubic: {
Transform3x3Processor<PIX, nComponents, maxValue, masked, eFilterCubic, false> fred(*this);
setupAndProcess(fred, args);
break;
}
case eFilterKeys:
if (clamp) {
Transform3x3Processor<PIX, nComponents, maxValue, masked, eFilterKeys, true> fred(*this);
setupAndProcess(fred, args);
} else {
Transform3x3Processor<PIX, nComponents, maxValue, masked, eFilterKeys, false> fred(*this);
setupAndProcess(fred, args);
}
break;
case eFilterSimon:
if (clamp) {
Transform3x3Processor<PIX, nComponents, maxValue, masked, eFilterSimon, true> fred(*this);
setupAndProcess(fred, args);
} else {
Transform3x3Processor<PIX, nComponents, maxValue, masked, eFilterSimon, false> fred(*this);
setupAndProcess(fred, args);
}
break;
case eFilterRifman:
if (clamp) {
Transform3x3Processor<PIX, nComponents, maxValue, masked, eFilterRifman, true> fred(*this);
setupAndProcess(fred, args);
} else {
Transform3x3Processor<PIX, nComponents, maxValue, masked, eFilterRifman, false> fred(*this);
setupAndProcess(fred, args);
}
break;
case eFilterMitchell:
if (clamp) {
Transform3x3Processor<PIX, nComponents, maxValue, masked, eFilterMitchell, true> fred(*this);
setupAndProcess(fred, args);
} else {
Transform3x3Processor<PIX, nComponents, maxValue, masked, eFilterMitchell, false> fred(*this);
setupAndProcess(fred, args);
}
break;
case eFilterParzen: {
Transform3x3Processor<PIX, nComponents, maxValue, masked, eFilterParzen, false> fred(*this);
setupAndProcess(fred, args);
break;
}
case eFilterNotch: {
Transform3x3Processor<PIX, nComponents, maxValue, masked, eFilterNotch, false> fred(*this);
setupAndProcess(fred, args);
break;
}
} // switch
} // renderInternalForBitDepth
// the internal render function
template <int nComponents, bool masked>
void
Transform3x3Plugin::renderInternal(const RenderArguments &args,
BitDepthEnum dstBitDepth)
{
switch (dstBitDepth) {
case eBitDepthUByte:
renderInternalForBitDepth<unsigned char, nComponents, 255, masked>(args);
break;
case eBitDepthUShort:
renderInternalForBitDepth<unsigned short, nComponents, 65535, masked>(args);
break;
case eBitDepthFloat:
renderInternalForBitDepth<float, nComponents, 1, masked>(args);
break;
default:
throwSuiteStatusException(kOfxStatErrUnsupported);
}
}
// the overridden render function
void
Transform3x3Plugin::render(const RenderArguments &args)
{
// instantiate the render code based on the pixel depth of the dst clip
BitDepthEnum dstBitDepth = _dstClip->getPixelDepth();
int dstComponentCount = _dstClip->getPixelComponentCount();
assert(1 <= dstComponentCount && dstComponentCount <= 4);
switch (dstComponentCount) {
case 4:
if (_masked) {
renderInternal<4, true>(args, dstBitDepth);
} else {
renderInternal<4, false>(args, dstBitDepth);
}
break;
case 3:
if (_masked) {
renderInternal<3, true>(args, dstBitDepth);
} else {
renderInternal<3, false>(args, dstBitDepth);
}
break;
case 2:
if (_masked) {
renderInternal<2, true>(args, dstBitDepth);
} else {
renderInternal<2, false>(args, dstBitDepth);
}
break;
case 1:
if (_masked) {
renderInternal<1, true>(args, dstBitDepth);
} else {
renderInternal<1, false>(args, dstBitDepth);
}
break;
default:
break;
}
}
bool
Transform3x3Plugin::isIdentity(const IsIdentityArguments &args,
Clip * &identityClip,
double & /*identityTime*/
#ifdef OFX_EXTENSIONS_NUKE
, int& /*view*/, std::string& /*plane*/
#endif
)
{
const double time = args.time;
if (_dirBlurAmount) {
double amount = 1.;
_dirBlurAmount->getValueAtTime(time, amount);
if (amount == 0.) {
identityClip = _srcClip;
return true;
}
}
// if there is motion blur, we suppose the transform is not identity
double motionblur = _invert ? 1. : 0.; // default is 1 for GodRays, 0 for Mirror
if (_motionblur) {
_motionblur->getValueAtTime(time, motionblur);
}
double shutter = 0.;
if (_shutter) {
_shutter->getValueAtTime(time, shutter);
}
bool hasmotionblur = (shutter != 0. && motionblur != 0.);
if (hasmotionblur) {