#include <sstream> /* std::ostringstream */</sstream>

#include "tfxparam.h"

#include "tparamset.h"  // TPointParamP

#include "stdfx.h"

#include "tparamuiconcept.h"  //add 20140130

#include "ino_common.h"

#include "igs_rotate_blur.h"

//------------------------------------------------------------

class ino_spin_blur final : public TStandardRasterFx {

  FX_PLUGIN_DECLARATION(ino_spin_blur)

  TRasterFxPort m_input;

  TRasterFxPort m_refer;

  TPointParamP m_center;

  TDoubleParamP m_blur;

  TDoubleParamP m_radius;

  TIntEnumParamP m_type;

  TBoolParamP m_alpha_rendering;

  TBoolParamP m_anti_alias;

  TIntEnumParamP m_ref_mode;

public:

  ino_spin_blur()

      : m_center(TPointD(0.0, 0.0))

      , m_blur(1)

      , m_radius(0.0)

      , m_type(new TIntEnumParam(0, "Accelerator"))

      , m_alpha_rendering(true)

      , m_anti_alias(false)

      , m_ref_mode(new TIntEnumParam(0, "Red")) {

    this->m_center->getX()->setMeasureName("fxLength");

    this->m_center->getY()->setMeasureName("fxLength");

    this->m_radius->setMeasureName("fxLength");

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

    addInputPort("Reference", this->m_refer);

    bindParam(this, "center", this->m_center);

    bindParam(this, "blur", this->m_blur);

    bindParam(this, "radius", this->m_radius);

    bindParam(this, "type", this->m_type);

    bindParam(this, "alpha_rendering", this->m_alpha_rendering);

    bindParam(this, "anti_alias", this->m_anti_alias);

    bindParam(this, "reference", this->m_ref_mode);

    this->m_radius->setValueRange(0, (std::numeric_limits<double>::max)());</double>

    /* 拡大のしすぎを防ぐためにMaxを制限する */

    this->m_blur->setValueRange(0.0, 180.0);

    this->m_type->addItem(1, "Uniform");

    this->m_ref_mode->addItem(1, "Green");

    this->m_ref_mode->addItem(2, "Blue");

    this->m_ref_mode->addItem(3, "Alpha");

    this->m_ref_mode->addItem(4, "Luminance");

    this->m_ref_mode->addItem(-1, "Nothing");

  }

  //------------------------------------------------------------

  TPointD get_render_center(const double frame, const TPointD &pos,

                            const TAffine affine) {

    /*--- 表示画像の中心をゼロとしたミリメートル単位の位置 ---*/

    TPointD center = this->m_center->getValue(frame);

    /*--- 単位変換(mm --> render用pixel) ---*/

    center = center * ino::pixel_per_mm();

    /*--- Affine変換(Geometry&Shrink&原点を中心から左下へ) ---*/

    center = affine * center;

    /*--- カメラ座標をrender画像座標の原点に ---*/

    return center - pos;

  }

  int get_render_int_margin(const double frame, const TRectD &bBox,

                            const TAffine affine, TPointD center) {

    /*--- 単位変換(mm-->render用pixel)と長さ(scale)変換 ---*/

    const double scale = ino::pixel_per_mm() * sqrt(fabs(affine.det()));

    /*--- margin計算...Twist時正確でない ---*/

    return igs::rotate_blur::reference_margin(

        static_cast<int>(ceil(bBox.getLy())),</int>

        static_cast<int>(ceil(bBox.getLx())), center.x, center.y,</int>

        this->m_blur->getValue(frame), this->m_radius->getValue(frame) * scale,

        ((0 < this->m_type->getValue()) ? 0.0 : (bBox.getLy() / 2.0)),

        (this->m_anti_alias->getValue() ? 4 : 1));

  }

  void get_render_enlarge(const double frame, const TAffine affine,

                          TRectD &bBox) {

    TPointD center(this->get_render_center(frame, bBox.getP00(), affine));

    int margin = this->get_render_int_margin(frame, bBox, affine, center);

    if (0 < margin) {

      /* 拡大のしすぎを防ぐテキトーな制限 */

      if (4096 < margin) {

        margin = 4096;

      }

      bBox = bBox.enlarge(margin);

    }

  }

  //------------------------------------------------------------

  bool doGetBBox(double frame, TRectD &bBox,

                 const TRenderSettings &info) override {

    if (!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) override {

    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) override {

    rectOnInput = rectOnOutput;

    infoOnInput = infoOnOutput;

    this->get_render_enlarge(frame, infoOnOutput.m_affine, rectOnInput);

  }

  bool canHandle(const TRenderSettings &info, double frame) override {

    // return false; // toonz has geometry control

    // return true;

    /* 2012-11-14:

     * trueのとき、Fx処理がジオメトリ変換の最後にまとめられてしまう。 */

    return m_blur->getValue(frame) == 0 ? true

                                        : isAlmostIsotropic(info.m_affine);

  }

  void doCompute(TTile &tile, double frame, const TRenderSettings &ri) override;

  // add 20140130

  void getParamUIs(TParamUIConcept *&concepts, int &length) override {

    concepts = new TParamUIConcept[length = 2];

    concepts[0].m_type  = TParamUIConcept::POINT;

    concepts[0].m_label = "Center";

    concepts[0].m_params.push_back(m_center);

    concepts[1].m_type  = TParamUIConcept::RADIUS;

    concepts[1].m_label = "Radius";

    concepts[1].m_params.push_back(m_radius);

    concepts[1].m_params.push_back(m_center);

  }

  // add 20140130

};

FX_PLUGIN_IDENTIFIER(ino_spin_blur, "inoSpinBlurFx");

//--------------------------------------------------------------------

namespace {

void fx_(const TRasterP in_ras  // with margin

         ,

         const int margin

         /* ここではinとrefは同サイズで使用している */

         ,

         const TRasterP refer_ras  // no margin

         ,

         const int refer_mode

         ,

         TRasterP out_ras  // no margin

         ,

         const double xp, const double yp, const int type, const double blur,

         const double radius, const bool alpha_rendering_sw,

         const bool anti_alias_sw) {

  TRasterGR8P in_gr8(in_ras->getLy(),

                     in_ras->getLx() * ino::channels() *

                         ((TRaster64P)in_ras ? sizeof(unsigned short)

                                             : sizeof(unsigned char)));

  in_gr8->lock();

  igs::rotate_blur::convert(

      in_ras->getRawData()  // BGRA

      ,

      0 /* margin機能は使っていない、のでinとref画像は同サイズ */

      ,

      (((refer_ras != nullptr) && (0 <= refer_mode)) ? refer_ras->getRawData()

                                                     : nullptr)  // BGRA

      ,

      (((refer_ras != nullptr) && (0 <= refer_mode)) ? ino::bits(refer_ras)

                                                     : 0),

      refer_mode

      ,

      in_gr8->getRawData()  // BGRA

      ,

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

                                                             ,

      xp + margin, yp + margin, blur /*degree*/

      ,

      radius, ((0 < type) ? 0.0 : (out_ras->getLy() / 2.0))

                  ,

      (anti_alias_sw ? 4 : 1), alpha_rendering_sw);

  ino::arr_to_ras(in_gr8->getRawData(), ino::channels(), out_ras, margin);

  in_gr8->unlock();

}

}

//------------------------------------------------------------

void ino_spin_blur::doCompute(TTile &tile, double frame,

                              const TRenderSettings &ri) {

  /*------ 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");

  }

  /*------ パラメータを得る ----------------------------------*/

  const double scale  = ino::pixel_per_mm() * sqrt(fabs(ri.m_affine.det()));

  const double blur   = this->m_blur->getValue(frame);

  const double radius = this->m_radius->getValue(frame) * scale;

  const int type      = this->m_type->getValue();

  const bool alpha_rend_sw = this->m_alpha_rendering->getValue();

  const bool anti_alias_sw = this->m_anti_alias->getValue();

  const int refer_mode     = this->m_ref_mode->getValue();

  TPointD center = this->m_center->getValue(frame);

  TPointD render_center(

      this->get_render_center(frame, tile.m_pos, ri.m_affine));

  /*------ 入力画像の範囲を得る ------------------------------*/

  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()));

  /*------ 入力画像のエリアの拡大 ----------------------------*/

  int margin =

      this->get_render_int_margin(frame, bBox, ri.m_affine, render_center);

  if (0 < margin) {

    /* 拡大のしすぎを防ぐテキトーな制限 */

    if (4096 < margin) {

      margin = 4096;

    }

    bBox = bBox.enlarge(margin);

  }

  /*------ 入力画像生成 --------------------------------------*/

  TTile enlarge_tile;

  this->m_input->allocateAndCompute(

      enlarge_tile, bBox.getP00(),

      TDimensionI(/* Pixel単位で四捨五入 */

                  static_cast<int>(bBox.getLx() + 0.5),</int>

                  static_cast<int>(bBox.getLy() + 0.5)),</int>

      tile.getRaster(), frame, ri);

  /*------ 参照画像生成 --------------------------------------*/

  TTile refer_tile;

  bool refer_sw = false;

  if (this->m_refer.isConnected()) {

    refer_sw = true;

    this->m_refer->allocateAndCompute(

        refer_tile, bBox.getP00(),

        TDimensionI(/* Pixel単位で四捨五入 */

                    static_cast<int>(bBox.getLx() + 0.5),</int>

                    static_cast<int>(bBox.getLy() + 0.5)),</int>

        tile.getRaster(), frame, ri);

  }

  /* ------ 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"

       << "  cx " << center.x << "  cy " << center.y << "  blur " << blur

       << "  radius " << radius << "  type " << type << "  reference "

       << refer_mode << "  alpha_rendering " << alpha_rend_sw << "  anti_alias "

       << anti_alias_sw << "  rend_cx " << render_center.x << "  rend_cy "

       << render_center.y << "  tx " << tile.m_pos.x << "  ty " << tile.m_pos.y

       << "  tw " << tile.getRaster()->getLx() << "  th "

       << tile.getRaster()->getLy() << "  tb "

       << ino::pixel_bits(tile.getRaster()) << "  margin " << margin << "  bx0 "

       << bBox.x0 << "  by0 " << bBox.y0 << "  bx1 " << bBox.x1 << "  by1 "

       << bBox.y1 << "  ix " << enlarge_tile.m_pos.x << "  iy "

       << enlarge_tile.m_pos.y << "  iw " << enlarge_tile.getRaster()->getLx()

       << "  ih " << enlarge_tile.getRaster()->getLy();

    if (refer_sw) {

      os << "  rx " << refer_tile.m_pos.x << "  ry " << refer_tile.m_pos.y

         << "  rw " << refer_tile.getRaster()->getLx() << "  rh "

         << refer_tile.getRaster()->getLy();

    }

    os << "  frame " << frame << "  ri_aff_det " << ri.m_affine.det()

       << "  shrink_x " << ri.m_shrinkX << "  shrink_y " << ri.m_shrinkY;

  }

  /* ------ fx処理 ------------------------------------------ */

  try {

    tile.getRaster()->lock();

    enlarge_tile.getRaster()->lock();

    if (refer_tile.getRaster() != nullptr) {

      refer_tile.getRaster()->lock();

    }

    fx_(enlarge_tile.getRaster(), margin

        ,

        refer_tile.getRaster(), refer_mode

        ,

        tile.getRaster()

            ,

        render_center.x, render_center.y, type, blur, radius, alpha_rend_sw,

        anti_alias_sw);

    if (refer_tile.getRaster() != nullptr) {

      refer_tile.getRaster()->unlock();

    }

    enlarge_tile.getRaster()->unlock();

    tile.getRaster()->unlock();

  }

  /* ------ error処理 --------------------------------------- */

  catch (std::bad_alloc &e) {

    if (refer_tile.getRaster() != nullptr) {

      refer_tile.getRaster()->unlock();

    }

    enlarge_tile.getRaster()->unlock();

    tile.getRaster()->unlock();

    if (log_sw) {

      std::string str("std::bad_alloc <");

      str += e.what();

      str += '>';

    }

    throw;

  } catch (std::exception &e) {

    if (refer_tile.getRaster() != nullptr) {

      refer_tile.getRaster()->unlock();

    }

    enlarge_tile.getRaster()->unlock();

    tile.getRaster()->unlock();

    if (log_sw) {

      std::string str("exception <");

      str += e.what();

      str += '>';

    }

    throw;

  } catch (...) {

    if (refer_tile.getRaster() != nullptr) {

      refer_tile.getRaster()->unlock();

    }

    enlarge_tile.getRaster()->unlock();

    tile.getRaster()->unlock();

    if (log_sw) {

      std::string str("other exception");

    }

    throw;

  }

}