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

#include "ino_common.h"
#include "igs_fog.h"
//------------------------------------------------------------
class ino_fog : public TStandardRasterFx
{
	FX_PLUGIN_DECLARATION(ino_fog)
	TRasterFxPort m_input;
	TDoubleParamP m_radius;
	TDoubleParamP m_curve;
	TDoubleParamP m_power;
	TDoubleParamP m_threshold_min;
	TDoubleParamP m_threshold_max;
	TBoolParamP m_alpha_rendering;

public:
	ino_fog()
		: m_radius(1.0), m_curve(1.0 * ino::param_range()), m_power(1.0 * ino::param_range()), m_threshold_min(0.0 * ino::param_range()), m_threshold_max(0.0 * ino::param_range()), m_alpha_rendering(false)
	{
		this->m_radius->setMeasureName("fxLength");

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

		bindParam(this, "radius", this->m_radius);
		bindParam(this, "curve", this->m_curve);
		bindParam(this, "power", this->m_power);
		bindParam(this, "threshold_min", this->m_threshold_min);
		bindParam(this, "threshold_max", this->m_threshold_max);
		bindParam(this, "alpha_rendering", this->m_alpha_rendering);

		this->m_radius->setValueRange(0.0, 100.0);
		this->m_curve->setValueRange(
			0.1 * ino::param_range(), 10.0 * ino::param_range()); /* gammaカーブ */
		this->m_power->setValueRange(
			-2.0 * ino::param_range(), 2.0 * ino::param_range());
		this->m_threshold_min->setValueRange(
			0.0 * ino::param_range(), 1.01 * ino::param_range());
		this->m_threshold_max->setValueRange(
			0.0 * ino::param_range(), 1.01 * ino::param_range());
	}
	//------------------------------------------------------------
	double get_render_real_radius(
		const double frame, const TAffine affine)
	{
		return this->m_radius->getValue(frame) * ino::pixel_per_mm() /* render用単位にする */
			   * sqrt(fabs(affine.det()))							 /* 拡大縮小のGeometryを反映 */
			;
	}
	void get_render_enlarge(
		const double frame, const TAffine affine, TRectD &bBox)
	{
		const int margin = static_cast<int>(ceil(
			this->get_render_real_radius(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)
	{
		return true;
	}
	void doCompute(
		TTile &tile, double frame, const TRenderSettings &rend_sets);
};
FX_PLUGIN_IDENTIFIER(ino_fog, "inoFogFx");
//------------------------------------------------------------
namespace
{
void fx_(
	const TRasterP in_ras // with margin
	,
	const int margin, TRasterP out_ras // no margin
	,
	const int nthread, const double radius, const double curve, const double power, const double threshold_min, const double threshold_max, const bool alp_rend_sw)
{
	TRasterGR8P out_gr8(
		in_ras->getLy(), in_ras->getLx() * ino::channels() *
							 ((TRaster64P)in_ras ? sizeof(unsigned short) : sizeof(unsigned char)));
	out_gr8->lock();

	TRasterGR8P ref_gr8(
		in_ras->getLy(), in_ras->getLx() * sizeof(double));
	ref_gr8->lock();

	igs::fog::convert(
		in_ras->getRawData() // BGRA
		,
		out_gr8->getRawData(), reinterpret_cast<double *>(ref_gr8->getRawData())

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

															   ,
		nthread

		,
		radius, curve, 2, 0.0, power, threshold_min, threshold_max, alp_rend_sw);
	ref_gr8->unlock();

	ino::arr_to_ras(
		out_gr8->getRawData(), ino::channels(), out_ras, margin);
	out_gr8->unlock();
}
}
//------------------------------------------------------------
void ino_fog::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");
	}
	/*------ 動作パラメータを得る ------------------------------*/
	const double radius = this->get_render_real_radius(
		frame, rend_sets.m_affine);
	const double curve = this->m_curve->getValue(frame) /
						 ino::param_range();
	const double power = this->m_power->getValue(frame) /
						 ino::param_range();
	const double threshold_min =
		this->m_threshold_min->getValue(frame) / ino::param_range();
	const double threshold_max =
		this->m_threshold_max->getValue(frame) / ino::param_range();
	const bool alp_rend_sw = this->m_alpha_rendering->getValue();
	const int nthread = 1;
	/*------ fogがからないパラメータ値のときはfog処理しない ----*/
	if (!igs::fog::have_change(radius, power, threshold_min)) {
		this->m_input->compute(tile, frame, rend_sets);
		return;
	}
	/*------ 表示の範囲を得る ----------------------------------*/
	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()));
	/*------ fog半径(=マージン)分表示範囲を広げる --------------*/
	const int int_radius = static_cast<int>(ceil(radius));
	if (0 < int_radius) {
		bBox = bBox.enlarge(static_cast<double>(int_radius));
	}
	TTile enlarge_tile;
	this->m_input->allocateAndCompute(
		enlarge_tile, bBox.getP00(), TDimensionI(/* Pixel単位に四捨五入 */
												 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"
		   << "  nthread " << nthread
		   << "  usr_radius " << this->m_radius->getValue(frame)
		   << "  real_radius " << radius
		   << "  int_radius " << int_radius
		   << "  curve " << curve
		   << "  power " << power
		   << "  threshold_min " << threshold_min
		   << "  threshold_max " << threshold_max
		   << "  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()
		   << "  shrink x " << rend_sets.m_shrinkX
		   << "  y " << rend_sets.m_shrinkY;
	}
	/* ------ fx処理 ------------------------------------------ */
	try {
		tile.getRaster()->lock();
		fx_(enlarge_tile.getRaster() // with margin
			,
			int_radius // margin
			,
			tile.getRaster() // no margin
			,
			nthread, radius, curve, power, threshold_min, threshold_max, 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;
	}
}