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#include <sstream> /* std::ostringstream */
#include "tfxparam.h"
#include "stdfx.h"
#include "tfxattributes.h"

#include "ino_common.h"
//------------------------------------------------------------
class ino_motion_blur : public TStandardRasterFx
{
	FX_PLUGIN_DECLARATION(ino_motion_blur)
	TRasterFxPort m_input;

	TIntEnumParamP m_depend_move;
	TDoubleParamP m_x1;
	TDoubleParamP m_y1;
	TDoubleParamP m_x2;
	TDoubleParamP m_y2;
	TDoubleParamP m_scale;
	TDoubleParamP m_curve;
	TDoubleParamP m_zanzo_length;
	TDoubleParamP m_zanzo_power;
	TBoolParamP m_alpha_rendering;
	// TBoolParamP m_spread;
public:
	ino_motion_blur()
		: m_depend_move(new TIntEnumParam(0, "P1 -> P2")), m_x1(0.0), m_y1(0.0), m_x2(1.0), m_y2(1.0), m_scale(1.0 * ino::param_range()), m_curve(1.0 * ino::param_range()), m_zanzo_length(0.0), m_zanzo_power(1.0 * ino::param_range()), m_alpha_rendering(true)
	// , m_spread(true)
	{
		this->m_x1->setMeasureName("fxLength");
		this->m_y1->setMeasureName("fxLength");
		this->m_x2->setMeasureName("fxLength");
		this->m_y2->setMeasureName("fxLength");
		this->m_zanzo_length->setMeasureName("fxLength");

		addInputPort("Source", this->m_input);

		bindParam(this, "depend_move", this->m_depend_move);
		bindParam(this, "x1", this->m_x1);
		bindParam(this, "y1", this->m_y1);
		bindParam(this, "x2", this->m_x2);
		bindParam(this, "y2", this->m_y2);
		bindParam(this, "scale", this->m_scale);
		bindParam(this, "curve", this->m_curve);
		bindParam(this, "zanzo_length", this->m_zanzo_length);
		bindParam(this, "zanzo_power", this->m_zanzo_power);
		bindParam(this, "alpha_rendering",
				  this->m_alpha_rendering);
		// bindParam(this,"spread", this->m_spread);

		this->m_depend_move->addItem(1, "Motion");

		this->m_curve->setValueRange(
			0.1 * ino::param_range(), 10.0 * ino::param_range()); /* gamma値 */
		this->m_zanzo_length->setValueRange(
			0.0,
			1000.0);
		this->m_zanzo_power->setValueRange(
			0.0 * ino::param_range(),
			1.0 * ino::param_range());

		this->getAttributes()->setIsSpeedAware(true);
	}
	//------------------------------------------------------------
	void get_render_vector(
		const double frame, const TAffine affine, TPointD &rend_vect)
	{
		/*--- ベクトルを得て、render用単位にする ---*/
		if (0 == this->m_depend_move->getValue()) {
			rend_vect.x = this->m_x2->getValue(frame) -
						  this->m_x1->getValue(frame);
			rend_vect.y = this->m_y2->getValue(frame) -
						  this->m_y1->getValue(frame);

			rend_vect = rend_vect * ino::pixel_per_mm();
			/* 単位変換(mm --> render_pixel) */
		} else {
			rend_vect = -this->getAttributes()->getSpeed();
		}

		/*--- 回転と拡大縮小のGeometryを反映させる ---*/
		/*
		toonz/main/sources/stdfx/motionblurfx.cpp
		750-768行を参照して書いた
		*/
		TAffine aff(affine);
		aff.a13 = aff.a23 = 0; /* 移動変換をしないで... */

		rend_vect = aff * rend_vect;

		/*--- ユーザー指定による、強弱を付加する ---*/
		rend_vect = rend_vect * (this->m_scale->getValue(frame) / ino::param_range());
		/*--- shrinkはGeometry(affine)に含まれる...らしい ---*/
		// rend_vect = rend_vect
		//	* (1.0 / ((info.m_shrinkX + info.m_shrinkY)/2.));
	}
	int get_render_margin(
		const double frame, const TAffine affine)
	{
		TPointD rend_vect;
		this->get_render_vector(frame, affine, rend_vect);
		return static_cast<int>(ceil(
									(fabs(rend_vect.x) < fabs(rend_vect.y))
										? fabs(rend_vect.y)
										: fabs(rend_vect.x)) +
								0.5);
	}
	void get_render_enlarge(
		const double frame, const TAffine affine, TRectD &bBox)
	{
		const int margin = this->get_render_margin(frame, affine);
		if (0 < margin) {
			bBox = bBox.enlarge(static_cast<double>(margin));
		}
	}
	//------------------------------------------------------------
	bool doGetBBox(
		double frame, TRectD &bBox, const TRenderSettings &info)
	{
		if (false == this->m_input.isConnected()) {
			bBox = TRectD();
			return false;
		}
		const bool ret = this->m_input->doGetBBox(frame, bBox, info);
		this->get_render_enlarge(frame, info.m_affine, bBox);
		return ret;
	}
	int getMemoryRequirement(
		const TRectD &rect, double frame, const TRenderSettings &info)
	{
		TRectD bBox(rect);
		this->get_render_enlarge(frame, info.m_affine, bBox);
		return TRasterFx::memorySize(bBox, info.m_bpp);
	}
	void transform(
		double frame, int port, const TRectD &rectOnOutput, const TRenderSettings &infoOnOutput, TRectD &rectOnInput, TRenderSettings &infoOnInput)
	{
		rectOnInput = rectOnOutput;
		infoOnInput = infoOnOutput;
		this->get_render_enlarge(
			frame, infoOnOutput.m_affine, rectOnInput);
	}
	bool canHandle(
		const TRenderSettings &info, double frame)
	{
		if (0 == this->m_depend_move->getValue()) {
			return true;
		} else {
			return isAlmostIsotropic(info.m_affine) ||
				   m_scale->getValue(frame) == 0;
		}
	}
	void doCompute(
		TTile &tile, double frame, const TRenderSettings &rend_sets);
};
FX_PLUGIN_IDENTIFIER(ino_motion_blur, "inoMotionBlurFx");
//------------------------------------------------------------
#include "igs_motion_blur.h"
namespace
{
template <class U, class T>
void arr_to_ras_(
	const U *arr, const int channels, TRasterPT<T> ras, const int margin)
{
	arr += (ras->getLx() + margin + margin) * margin * channels +
		   margin * channels;

	for (int yy = 0; yy < ras->getLy(); ++yy, arr += (ras->getLx() + margin + margin) * channels) {
		const U *arrx = arr;
		T *ras_sl = ras->pixels(yy);
		for (int xx = 0; xx < ras->getLx(); ++xx, arrx += channels) {
			ras_sl[xx].b = arrx[0];
			ras_sl[xx].g = arrx[1];
			ras_sl[xx].r = arrx[2];
			ras_sl[xx].m = arrx[3];
		}
	}
}
void vec_to_ras_(
	unsigned char *vec, const int channels, TRasterP ras, const int margin)
{
	if ((TRaster32P)ras) {
		arr_to_ras_<unsigned char, TPixel32>(
			vec, channels, ras, margin);
	} else if ((TRaster64P)ras) {
		arr_to_ras_<unsigned short, TPixel64>(
			reinterpret_cast<unsigned short *>(vec), channels, ras, margin);
	}
}
void fx_(
	const TRasterP in_ras // with margin
	,
	const int margin, TRasterP out_ras // no margin
	,
	const double x_vector, const double y_vector, const double scale, const double curve, const int zanzo_length, const double zanzo_power, const bool alp_rend_sw)
{
	/******
	std::vector<unsigned char> in_vec;
	ino::ras_to_vec( in_ras, ino::channels(), in_vec );
	std::vector<unsigned char> out_vec(in_vec.size());
******/
	/***	int out_size = in_ras->getLy()*in_ras->getLx()*ino::channels();
	if ((TRaster64P)in_ras) { out_size *= sizeof(unsigned short) ; }
	TRasterGR8P out_byt(out_size, 1);
	//TRasterGR8P out_byt; out_byt->create(out_size, 1);
	//TRasterP out_byt = TRasterGR8P(out_size, 1);
	out_byt->lock();
	if (0 == out_byt->getRawData()) {
	 throw TRopException("Can not get TRasterGR8P->getRawData()");
	}***/

	TRasterGR8P out_gr8(
		in_ras->getLy(), in_ras->getLx() * ino::channels() *
							 ((TRaster64P)in_ras ? sizeof(unsigned short) : sizeof(unsigned char)));
	out_gr8->lock();

	igs::motion_blur::convert(
		in_ras->getRawData() // BGRA
		//&in_vec.at(0) // RGBA

		//, out_byt->getRawData() // BGRA
		//, &out_vec.at(0)    // RGBA
		//, out_ras->getRawData() // BGRA
		,
		out_gr8->getRawData()

			,
		in_ras->getLy(), in_ras->getLx(), ino::channels(), ino::bits(in_ras)

															   ,
		x_vector, y_vector, scale, curve, zanzo_length, zanzo_power, alp_rend_sw);

	/******
	ino::vec_to_ras( out_vec, ino::channels(), out_ras, margin );
	in_vec.clear();
******/
	/***vec_to_ras_(out_byt->getRawData(),ino::channels(),out_ras,margin);
	out_byt->unlock();***/

	ino::arr_to_ras(
		out_gr8->getRawData(), ino::channels(), out_ras, margin);
	out_gr8->unlock();
}
}
//------------------------------------------------------------
void ino_motion_blur::doCompute(
	TTile &tile, double frame, const TRenderSettings &rend_sets)
{
	/* ------ 接続していなければ処理しない -------------------- */
	if (!this->m_input.isConnected()) {
		tile.getRaster()->clear(); /* 塗りつぶしクリア */
		return;
	}

	/* ------ サポートしていないPixelタイプはエラーを投げる --- */
	if (!((TRaster32P)tile.getRaster()) &&
		!((TRaster64P)tile.getRaster())) {
		throw TRopException("unsupported input pixel type");
	}

	/* ------ Render(Pixel)単位で動作パラメータを得る --------- */
	const int depend_move = this->m_depend_move->getValue();
	const double scale = this->m_scale->getValue(frame) /
						 ino::param_range();
	const double curve = this->m_curve->getValue(frame) /
						 ino::param_range();
	const int zanzo_length = this->m_zanzo_length->getValue(frame) *
							 ino::pixel_per_mm() * sqrt(fabs(rend_sets.m_affine.det())) / ((rend_sets.m_shrinkX + rend_sets.m_shrinkY) / 2.0);
	const double zanzo_power = this->m_zanzo_power->getValue(frame) /
							   ino::param_range();
	const bool alp_rend_sw = this->m_alpha_rendering->getValue();

	/* ------ 実際に処理するぼかしの方向vectorを生成 ---------- */
	TPointD rend_vect;
	this->get_render_vector(frame, rend_sets.m_affine, rend_vect);
	/* ------ 参照マージンの大きさを得る ---------------------- */
	const int margin = static_cast<int>(ceil(
											(fabs(rend_vect.x) < fabs(rend_vect.y))
												? fabs(rend_vect.y)
												: fabs(rend_vect.x)) +
										0.5);
	/* ------ 参照マージン含めた画像を生成 -------------------- */
	TRectD bBox = TRectD(
		tile.m_pos /* Render画像上(Pixel単位)の位置 */
		,
		TDimensionD(/* Render画像上(Pixel単位)のサイズ */
					tile.getRaster()->getLx(), tile.getRaster()->getLy()));
	if (0 < margin) {
		bBox = bBox.enlarge(static_cast<double>(margin));
	}

	TTile enlarge_tile;
	this->m_input->allocateAndCompute(
		enlarge_tile, bBox.getP00(), TDimensionI(/* Pixel単位のdouble -> intにしてセット */
												 static_cast<int>(bBox.getLx() + 0.5), static_cast<int>(bBox.getLy() + 0.5)),
		tile.getRaster(), frame, rend_sets);

	/* ------ 保存すべき画像メモリを塗りつぶしクリア ---------- */
	tile.getRaster()->clear(); /* 塗りつぶしクリア */

	/* ------ (app_begin)log記憶 ------------------------------ */
	const bool log_sw = ino::log_enable_sw();

	if (log_sw) {
		std::ostringstream os;
		os << "params"
		   << "  depend_move_num " << depend_move
		   << "  render_vector x " << rend_vect.x
		   << "  y " << rend_vect.y
		   << "  margin " << margin
		   << "  scale " << scale
		   << "  curve " << curve
		   << "  z_len " << zanzo_length
		   << "  z_pow " << zanzo_power
		   << "  alp_rend_sw " << alp_rend_sw
		   << "   tile w " << tile.getRaster()->getLx()
		   << "  h " << tile.getRaster()->getLy()
		   << "  pixbits " << ino::pixel_bits(tile.getRaster())
		   << "   frame " << frame
		   << "   rand_sets affine_det " << rend_sets.m_affine.det()
		   << "  a11 " << rend_sets.m_affine.a11
		   << "  a12 " << rend_sets.m_affine.a12
		   << "  a13 " << rend_sets.m_affine.a13
		   << "  a21 " << rend_sets.m_affine.a21
		   << "  a22 " << rend_sets.m_affine.a22
		   << "  a23 " << rend_sets.m_affine.a23
		   << "  x " << rend_sets.m_shrinkX
		   << "  y " << rend_sets.m_shrinkY;
	}
	/* ------ fx処理 ------------------------------------------ */
	try {
		tile.getRaster()->lock();
		fx_(enlarge_tile.getRaster() // in with margin
			,
			margin // margin
			,
			tile.getRaster() // out with no margin
			,
			rend_vect.x, rend_vect.y, scale, curve, zanzo_length, zanzo_power, alp_rend_sw);
		tile.getRaster()->unlock();
	}
	/* ------ error処理 --------------------------------------- */
	catch (std::bad_alloc &e) {
		tile.getRaster()->unlock();
		if (log_sw) {
			std::string str("std::bad_alloc <");
			str += e.what();
			str += '>';
		}
		throw;
	} catch (std::exception &e) {
		tile.getRaster()->unlock();
		if (log_sw) {
			std::string str("exception <");
			str += e.what();
			str += '>';
		}
		throw;
	} catch (...) {
		tile.getRaster()->unlock();
		if (log_sw) {
			std::string str("other exception");
		}
		throw;
	}
}