path: root/core/src/fxge/ge/fx_ge_ps.cpp

// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

#include "../../../include/fxge/fx_ge.h"
#include "../../../include/fxcodec/fx_codec.h"
#include "text_int.h"
struct PSGlyph {
  CFX_Font* m_pFont;
  FX_DWORD m_GlyphIndex;
  FX_BOOL m_bGlyphAdjust;
  FX_FLOAT m_AdjustMatrix[4];
};
class CPSFont {
 public:
  PSGlyph m_Glyphs[256];
  int m_nGlyphs;
};
CFX_PSRenderer::CFX_PSRenderer() {
  m_pOutput = NULL;
  m_bColorSet = m_bGraphStateSet = FALSE;
  m_bInited = FALSE;
}
CFX_PSRenderer::~CFX_PSRenderer() {
  for (int i = 0; i < (int)m_PSFontList.GetSize(); i++) {
    CPSFont* pFont = m_PSFontList[i];
    delete pFont;
  }
}
#define OUTPUT_PS(str) m_pOutput->OutputPS(str, sizeof str - 1)
void CFX_PSRenderer::Init(IFX_PSOutput* pOutput,
                          int pslevel,
                          int width,
                          int height,
                          FX_BOOL bCmykOutput) {
  m_PSLevel = pslevel;
  m_pOutput = pOutput;
  m_ClipBox.left = m_ClipBox.top = 0;
  m_ClipBox.right = width;
  m_ClipBox.bottom = height;
  m_bCmykOutput = bCmykOutput;
}
FX_BOOL CFX_PSRenderer::StartRendering() {
  if (m_bInited) {
    return TRUE;
  }
  static const char init_str[] =
      "\nsave\n/im/initmatrix load def\n"
      "/n/newpath load def/m/moveto load def/l/lineto load def/c/curveto load "
      "def/h/closepath load def\n"
      "/f/fill load def/F/eofill load def/s/stroke load def/W/clip load "
      "def/W*/eoclip load def\n"
      "/rg/setrgbcolor load def/k/setcmykcolor load def\n"
      "/J/setlinecap load def/j/setlinejoin load def/w/setlinewidth load "
      "def/M/setmiterlimit load def/d/setdash load def\n"
      "/q/gsave load def/Q/grestore load def/iM/imagemask load def\n"
      "/Tj/show load def/Ff/findfont load def/Fs/scalefont load def/Sf/setfont "
      "load def\n"
      "/cm/concat load def/Cm/currentmatrix load def/mx/matrix load "
      "def/sm/setmatrix load def\n";
  OUTPUT_PS(init_str);
  m_bInited = TRUE;
  return TRUE;
}
void CFX_PSRenderer::EndRendering() {
  if (m_bInited) {
    OUTPUT_PS("\nrestore\n");
  }
  m_bInited = FALSE;
}
void CFX_PSRenderer::SaveState() {
  StartRendering();
  OUTPUT_PS("q\n");
  m_ClipBoxStack.Add(m_ClipBox);
}
void CFX_PSRenderer::RestoreState(FX_BOOL bKeepSaved) {
  StartRendering();
  if (bKeepSaved) {
    OUTPUT_PS("Q\nq\n");
  } else {
    OUTPUT_PS("Q\n");
  }
  m_bColorSet = m_bGraphStateSet = FALSE;
  m_ClipBox = m_ClipBoxStack.GetAt(m_ClipBoxStack.GetSize() - 1);
  if (!bKeepSaved) {
    m_ClipBoxStack.RemoveAt(m_ClipBoxStack.GetSize() - 1);
  }
}
void CFX_PSRenderer::OutputPath(const CFX_PathData* pPathData,
                                const CFX_AffineMatrix* pObject2Device) {
  int nPoints = pPathData->GetPointCount();
  CFX_ByteTextBuf buf;
  buf.EstimateSize(nPoints * 10);
  for (int i = 0; i < nPoints; i++) {
    uint8_t flag = pPathData->GetFlag(i);
    FX_FLOAT x = pPathData->GetPointX(i);
    FX_FLOAT y = pPathData->GetPointY(i);
    if (pObject2Device) {
      pObject2Device->Transform(x, y);
    }
    buf << x << FX_BSTRC(" ") << y;
    switch (flag & FXPT_TYPE) {
      case FXPT_MOVETO:
        buf << FX_BSTRC(" m ");
        break;
      case FXPT_LINETO:
        if (flag & FXPT_CLOSEFIGURE) {
          buf << FX_BSTRC(" l h ");
        } else {
          buf << FX_BSTRC(" l ");
        }
        break;
      case FXPT_BEZIERTO: {
        FX_FLOAT x1 = pPathData->GetPointX(i + 1);
        FX_FLOAT x2 = pPathData->GetPointX(i + 2);
        FX_FLOAT y1 = pPathData->GetPointY(i + 1);
        FX_FLOAT y2 = pPathData->GetPointY(i + 2);
        if (pObject2Device) {
          pObject2Device->Transform(x1, y1);
          pObject2Device->Transform(x2, y2);
        }
        buf << FX_BSTRC(" ") << x1 << FX_BSTRC(" ") << y1 << FX_BSTRC(" ") << x2
            << FX_BSTRC(" ") << y2;
        if (flag & FXPT_CLOSEFIGURE) {
          buf << FX_BSTRC(" c h\n");
        } else {
          buf << FX_BSTRC(" c\n");
        }
        i += 2;
        break;
      }
    }
  }
  m_pOutput->OutputPS((const FX_CHAR*)buf.GetBuffer(), buf.GetSize());
}
void CFX_PSRenderer::SetClip_PathFill(const CFX_PathData* pPathData,
                                      const CFX_AffineMatrix* pObject2Device,
                                      int fill_mode) {
  StartRendering();
  OutputPath(pPathData, pObject2Device);
  CFX_FloatRect rect = pPathData->GetBoundingBox();
  if (pObject2Device) {
    rect.Transform(pObject2Device);
  }
  m_ClipBox.Intersect(rect.GetOutterRect());
  if ((fill_mode & 3) == FXFILL_WINDING) {
    OUTPUT_PS("W n\n");
  } else {
    OUTPUT_PS("W* n\n");
  }
}
void CFX_PSRenderer::SetClip_PathStroke(const CFX_PathData* pPathData,
                                        const CFX_AffineMatrix* pObject2Device,
                                        const CFX_GraphStateData* pGraphState) {
  StartRendering();
  SetGraphState(pGraphState);
  if (pObject2Device) {
    CFX_ByteTextBuf buf;
    buf << FX_BSTRC("mx Cm [") << pObject2Device->a << FX_BSTRC(" ")
        << pObject2Device->b << FX_BSTRC(" ") << pObject2Device->c
        << FX_BSTRC(" ") << pObject2Device->d << FX_BSTRC(" ")
        << pObject2Device->e << FX_BSTRC(" ") << pObject2Device->f
        << FX_BSTRC("]cm ");
    m_pOutput->OutputPS((const FX_CHAR*)buf.GetBuffer(), buf.GetSize());
  }
  OutputPath(pPathData, NULL);
  CFX_FloatRect rect = pPathData->GetBoundingBox(pGraphState->m_LineWidth,
                                                 pGraphState->m_MiterLimit);
  rect.Transform(pObject2Device);
  m_ClipBox.Intersect(rect.GetOutterRect());
  if (pObject2Device) {
    OUTPUT_PS("strokepath W n sm\n");
  } else {
    OUTPUT_PS("strokepath W n\n");
  }
}
FX_BOOL CFX_PSRenderer::DrawPath(const CFX_PathData* pPathData,
                                 const CFX_AffineMatrix* pObject2Device,
                                 const CFX_GraphStateData* pGraphState,
                                 FX_DWORD fill_color,
                                 FX_DWORD stroke_color,
                                 int fill_mode,
                                 int alpha_flag,
                                 void* pIccTransform) {
  StartRendering();
  int fill_alpha = FXGETFLAG_COLORTYPE(alpha_flag)
                       ? FXGETFLAG_ALPHA_FILL(alpha_flag)
                       : FXARGB_A(fill_color);
  int stroke_alpha = FXGETFLAG_COLORTYPE(alpha_flag)
                         ? FXGETFLAG_ALPHA_STROKE(alpha_flag)
                         : FXARGB_A(stroke_color);
  if (fill_alpha && fill_alpha < 255) {
    return FALSE;
  }
  if (stroke_alpha && stroke_alpha < 255) {
    return FALSE;
  }
  if (fill_alpha == 0 && stroke_alpha == 0) {
    return FALSE;
  }
  if (stroke_alpha) {
    SetGraphState(pGraphState);
    if (pObject2Device) {
      CFX_ByteTextBuf buf;
      buf << FX_BSTRC("mx Cm [") << pObject2Device->a << FX_BSTRC(" ")
          << pObject2Device->b << FX_BSTRC(" ") << pObject2Device->c
          << FX_BSTRC(" ") << pObject2Device->d << FX_BSTRC(" ")
          << pObject2Device->e << FX_BSTRC(" ") << pObject2Device->f
          << FX_BSTRC("]cm ");
      m_pOutput->OutputPS((const FX_CHAR*)buf.GetBuffer(), buf.GetSize());
    }
  }
  OutputPath(pPathData, stroke_alpha ? NULL : pObject2Device);
  if (fill_mode && fill_alpha) {
    SetColor(fill_color, alpha_flag, pIccTransform);
    if ((fill_mode & 3) == FXFILL_WINDING) {
      if (stroke_alpha) {
        OUTPUT_PS("q f Q ");
      } else {
        OUTPUT_PS("f");
      }
    } else if ((fill_mode & 3) == FXFILL_ALTERNATE) {
      if (stroke_alpha) {
        OUTPUT_PS("q F Q ");
      } else {
        OUTPUT_PS("F");
      }
    }
  }
  if (stroke_alpha) {
    SetColor(stroke_color, alpha_flag, pIccTransform);
    if (pObject2Device) {
      OUTPUT_PS("s sm");
    } else {
      OUTPUT_PS("s");
    }
  }
  OUTPUT_PS("\n");
  return TRUE;
}
void CFX_PSRenderer::SetGraphState(const CFX_GraphStateData* pGraphState) {
  CFX_ByteTextBuf buf;
  if (!m_bGraphStateSet ||
      m_CurGraphState.m_LineCap != pGraphState->m_LineCap) {
    buf << pGraphState->m_LineCap << FX_BSTRC(" J\n");
  }
  if (!m_bGraphStateSet ||
      m_CurGraphState.m_DashCount != pGraphState->m_DashCount ||
      FXSYS_memcmp(m_CurGraphState.m_DashArray, pGraphState->m_DashArray,
                   sizeof(FX_FLOAT) * m_CurGraphState.m_DashCount)) {
    buf << FX_BSTRC("[");
    for (int i = 0; i < pGraphState->m_DashCount; i++) {
      buf << pGraphState->m_DashArray[i] << FX_BSTRC(" ");
    }
    buf << FX_BSTRC("]") << pGraphState->m_DashPhase << FX_BSTRC(" d\n");
  }
  if (!m_bGraphStateSet ||
      m_CurGraphState.m_LineJoin != pGraphState->m_LineJoin) {
    buf << pGraphState->m_LineJoin << FX_BSTRC(" j\n");
  }
  if (!m_bGraphStateSet ||
      m_CurGraphState.m_LineWidth != pGraphState->m_LineWidth) {
    buf << pGraphState->m_LineWidth << FX_BSTRC(" w\n");
  }
  if (!m_bGraphStateSet ||
      m_CurGraphState.m_MiterLimit != pGraphState->m_MiterLimit) {
    buf << pGraphState->m_MiterLimit << FX_BSTRC(" M\n");
  }
  m_CurGraphState.Copy(*pGraphState);
  m_bGraphStateSet = TRUE;
  if (buf.GetSize()) {
    m_pOutput->OutputPS((const FX_CHAR*)buf.GetBuffer(), buf.GetSize());
  }
}
static void FaxCompressData(uint8_t* src_buf,
                            int width,
                            int height,
                            uint8_t*& dest_buf,
                            FX_DWORD& dest_size) {
  CCodec_ModuleMgr* pEncoders = CFX_GEModule::Get()->GetCodecModule();
  if (width * height > 128 && pEncoders &&
      pEncoders->GetFaxModule()->Encode(src_buf, width, height, (width + 7) / 8,
                                        dest_buf, dest_size)) {
    FX_Free(src_buf);
  } else {
    dest_buf = src_buf;
    dest_size = (width + 7) / 8 * height;
  }
}
static void PSCompressData(int PSLevel,
                           uint8_t* src_buf,
                           FX_DWORD src_size,
                           uint8_t*& output_buf,
                           FX_DWORD& output_size,
                           const FX_CHAR*& filter) {
  output_buf = src_buf;
  output_size = src_size;
  filter = "";
  if (src_size < 1024) {
    return;
  }
  CCodec_ModuleMgr* pEncoders = CFX_GEModule::Get()->GetCodecModule();
  uint8_t* dest_buf = NULL;
  FX_DWORD dest_size = src_size;
  if (PSLevel >= 3) {
    if (pEncoders &&
        pEncoders->GetFlateModule()->Encode(src_buf, src_size, dest_buf,
                                            dest_size)) {
      filter = "/FlateDecode filter ";
    }
  } else {
    if (pEncoders &&
        pEncoders->GetBasicModule()->RunLengthEncode(src_buf, src_size,
                                                     dest_buf, dest_size)) {
      filter = "/RunLengthDecode filter ";
    }
  }
  if (dest_size < src_size) {
    output_buf = dest_buf;
    output_size = dest_size;
  } else {
    filter = NULL;
    FX_Free(dest_buf);
  }
}
FX_BOOL CFX_PSRenderer::SetDIBits(const CFX_DIBSource* pSource,
                                  FX_DWORD color,
                                  int left,
                                  int top,
                                  int alpha_flag,
                                  void* pIccTransform) {
  StartRendering();
  CFX_AffineMatrix matrix((FX_FLOAT)(pSource->GetWidth()), 0.0f, 0.0f,
                          -(FX_FLOAT)(pSource->GetHeight()), (FX_FLOAT)(left),
                          (FX_FLOAT)(top + pSource->GetHeight()));
  return DrawDIBits(pSource, color, &matrix, 0, alpha_flag, pIccTransform);
}
FX_BOOL CFX_PSRenderer::StretchDIBits(const CFX_DIBSource* pSource,
                                      FX_DWORD color,
                                      int dest_left,
                                      int dest_top,
                                      int dest_width,
                                      int dest_height,
                                      FX_DWORD flags,
                                      int alpha_flag,
                                      void* pIccTransform) {
  StartRendering();
  CFX_AffineMatrix matrix((FX_FLOAT)(dest_width), 0.0f, 0.0f,
                          (FX_FLOAT)(-dest_height), (FX_FLOAT)(dest_left),
                          (FX_FLOAT)(dest_top + dest_height));
  return DrawDIBits(pSource, color, &matrix, flags, alpha_flag, pIccTransform);
}
FX_BOOL CFX_PSRenderer::DrawDIBits(const CFX_DIBSource* pSource,
                                   FX_DWORD color,
                                   const CFX_AffineMatrix* pMatrix,
                                   FX_DWORD flags,
                                   int alpha_flag,
                                   void* pIccTransform) {
  StartRendering();
  if ((pMatrix->a == 0 && pMatrix->b == 0) ||
      (pMatrix->c == 0 && pMatrix->d == 0)) {
    return TRUE;
  }
  if (pSource->HasAlpha()) {
    return FALSE;
  }
  int alpha = FXGETFLAG_COLORTYPE(alpha_flag) ? FXGETFLAG_ALPHA_FILL(color)
                                              : FXARGB_A(color);
  if (pSource->IsAlphaMask() && (alpha < 255 || pSource->GetBPP() != 1)) {
    return FALSE;
  }
  OUTPUT_PS("q\n");
  CFX_ByteTextBuf buf;
  buf << FX_BSTRC("[") << pMatrix->a << FX_BSTRC(" ") << pMatrix->b
      << FX_BSTRC(" ") << pMatrix->c << FX_BSTRC(" ") << pMatrix->d
      << FX_BSTRC(" ") << pMatrix->e << FX_BSTRC(" ") << pMatrix->f
      << FX_BSTRC("]cm ");
  int width = pSource->GetWidth();
  int height = pSource->GetHeight();
  buf << width << FX_BSTRC(" ") << height;
  if (pSource->GetBPP() == 1 && pSource->GetPalette() == NULL) {
    int pitch = (width + 7) / 8;
    FX_DWORD src_size = height * pitch;
    uint8_t* src_buf = FX_Alloc(uint8_t, src_size);
    for (int row = 0; row < height; row++) {
      const uint8_t* src_scan = pSource->GetScanline(row);
      FXSYS_memcpy(src_buf + row * pitch, src_scan, pitch);
    }
    uint8_t* output_buf;
    FX_DWORD output_size;
    FaxCompressData(src_buf, width, height, output_buf, output_size);
    if (pSource->IsAlphaMask()) {
      SetColor(color, alpha_flag, pIccTransform);
      m_bColorSet = FALSE;
      buf << FX_BSTRC(" true[");
    } else {
      buf << FX_BSTRC(" 1[");
    }
    buf << width << FX_BSTRC(" 0 0 -") << height << FX_BSTRC(" 0 ") << height
        << FX_BSTRC("]currentfile/ASCII85Decode filter ");
    if (output_buf != src_buf)
      buf << FX_BSTRC("<</K -1/EndOfBlock false/Columns ") << width
          << FX_BSTRC("/Rows ") << height
          << FX_BSTRC(">>/CCITTFaxDecode filter ");
    if (pSource->IsAlphaMask()) {
      buf << FX_BSTRC("iM\n");
    } else {
      buf << FX_BSTRC("false 1 colorimage\n");
    }
    m_pOutput->OutputPS((const FX_CHAR*)buf.GetBuffer(), buf.GetSize());
    WritePSBinary(output_buf, output_size);
    FX_Free(output_buf);
  } else {
    CFX_DIBSource* pConverted = (CFX_DIBSource*)pSource;
    if (pIccTransform) {
      FXDIB_Format format = m_bCmykOutput ? FXDIB_Cmyk : FXDIB_Rgb;
      pConverted = pSource->CloneConvert(format, NULL, pIccTransform);
    } else {
      switch (pSource->GetFormat()) {
        case FXDIB_1bppRgb:
        case FXDIB_Rgb32:
          pConverted = pSource->CloneConvert(FXDIB_Rgb);
          break;
        case FXDIB_8bppRgb:
          if (pSource->GetPalette() != NULL) {
            pConverted = pSource->CloneConvert(FXDIB_Rgb);
          }
          break;
        case FXDIB_1bppCmyk:
          pConverted = pSource->CloneConvert(FXDIB_Cmyk);
          break;
        case FXDIB_8bppCmyk:
          if (pSource->GetPalette() != NULL) {
            pConverted = pSource->CloneConvert(FXDIB_Cmyk);
          }
          break;
        default:
          break;
      }
    }
    if (pConverted == NULL) {
      OUTPUT_PS("\nQ\n");
      return FALSE;
    }
    int Bpp = pConverted->GetBPP() / 8;
    uint8_t* output_buf = NULL;
    FX_STRSIZE output_size = 0;
    const FX_CHAR* filter = NULL;
    if (flags & FXRENDER_IMAGE_LOSSY) {
      CCodec_ModuleMgr* pEncoders = CFX_GEModule::Get()->GetCodecModule();
      if (pEncoders &&
          pEncoders->GetJpegModule()->Encode(pConverted, output_buf,
                                             output_size)) {
        filter = "/DCTDecode filter ";
      }
    }
    if (filter == NULL) {
      int src_pitch = width * Bpp;
      output_size = height * src_pitch;
      output_buf = FX_Alloc(uint8_t, output_size);
      for (int row = 0; row < height; row++) {
        const uint8_t* src_scan = pConverted->GetScanline(row);
        uint8_t* dest_scan = output_buf + row * src_pitch;
        if (Bpp == 3) {
          for (int col = 0; col < width; col++) {
            *dest_scan++ = src_scan[2];
            *dest_scan++ = src_scan[1];
            *dest_scan++ = *src_scan;
            src_scan += 3;
          }
        } else {
          FXSYS_memcpy(dest_scan, src_scan, src_pitch);
        }
      }
      uint8_t* compressed_buf;
      FX_DWORD compressed_size;
      PSCompressData(m_PSLevel, output_buf, output_size, compressed_buf,
                     compressed_size, filter);
      if (output_buf != compressed_buf) {
        FX_Free(output_buf);
      }
      output_buf = compressed_buf;
      output_size = compressed_size;
    }
    if (pConverted != pSource) {
      delete pConverted;
      pConverted = NULL;
    }
    buf << FX_BSTRC(" 8[");
    buf << width << FX_BSTRC(" 0 0 -") << height << FX_BSTRC(" 0 ") << height
        << FX_BSTRC("]");
    buf << FX_BSTRC("currentfile/ASCII85Decode filter ");
    if (filter) {
      buf << filter;
    }
    buf << FX_BSTRC("false ") << Bpp;
    buf << FX_BSTRC(" colorimage\n");
    m_pOutput->OutputPS((const FX_CHAR*)buf.GetBuffer(), buf.GetSize());
    WritePSBinary(output_buf, output_size);
    FX_Free(output_buf);
  }
  OUTPUT_PS("\nQ\n");
  return TRUE;
}
void CFX_PSRenderer::SetColor(FX_DWORD color,
                              int alpha_flag,
                              void* pIccTransform) {
  if (!CFX_GEModule::Get()->GetCodecModule() ||
      !CFX_GEModule::Get()->GetCodecModule()->GetIccModule()) {
    pIccTransform = NULL;
  }
  FX_BOOL bCMYK = FALSE;
  if (pIccTransform) {
    ICodec_IccModule* pIccModule =
        CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
    color = FXGETFLAG_COLORTYPE(alpha_flag) ? FXCMYK_TODIB(color)
                                            : FXARGB_TODIB(color);
    uint8_t* pColor = (uint8_t*)&color;
    pIccModule->TranslateScanline(pIccTransform, pColor, pColor, 1);
    color = m_bCmykOutput ? FXCMYK_TODIB(color) : FXARGB_TODIB(color);
    bCMYK = m_bCmykOutput;
  } else {
    bCMYK = FXGETFLAG_COLORTYPE(alpha_flag);
  }
  if (bCMYK != m_bCmykOutput || !m_bColorSet || m_LastColor != color) {
    CFX_ByteTextBuf buf;
    if (bCMYK) {
      buf << FXSYS_GetCValue(color) / 255.0 << FX_BSTRC(" ")
          << FXSYS_GetMValue(color) / 255.0 << FX_BSTRC(" ")
          << FXSYS_GetYValue(color) / 255.0 << FX_BSTRC(" ")
          << FXSYS_GetKValue(color) / 255.0 << FX_BSTRC(" k\n");
    } else {
      buf << FXARGB_R(color) / 255.0 << FX_BSTRC(" ") << FXARGB_G(color) / 255.0
          << FX_BSTRC(" ") << FXARGB_B(color) / 255.0 << FX_BSTRC(" rg\n");
    }
    if (bCMYK == m_bCmykOutput) {
      m_bColorSet = TRUE;
      m_LastColor = color;
    }
    m_pOutput->OutputPS((const FX_CHAR*)buf.GetBuffer(), buf.GetSize());
  }
}
void CFX_PSRenderer::FindPSFontGlyph(CFX_FaceCache* pFaceCache,
                                     CFX_Font* pFont,
                                     const FXTEXT_CHARPOS& charpos,
                                     int& ps_fontnum,
                                     int& ps_glyphindex) {
  for (int i = 0; i < (int)m_PSFontList.GetSize(); i++) {
    CPSFont* pPSFont = m_PSFontList[i];
    for (int j = 0; j < pPSFont->m_nGlyphs; j++)
      if (pPSFont->m_Glyphs[j].m_pFont == pFont &&
          pPSFont->m_Glyphs[j].m_GlyphIndex == charpos.m_GlyphIndex) {
        if ((!pPSFont->m_Glyphs[j].m_bGlyphAdjust && !charpos.m_bGlyphAdjust) ||
            (pPSFont->m_Glyphs[j].m_bGlyphAdjust && charpos.m_bGlyphAdjust &&
             (FXSYS_fabs(pPSFont->m_Glyphs[j].m_AdjustMatrix[0] -
                         charpos.m_AdjustMatrix[0]) < 0.01 &&
              FXSYS_fabs(pPSFont->m_Glyphs[j].m_AdjustMatrix[1] -
                         charpos.m_AdjustMatrix[1]) < 0.01 &&
              FXSYS_fabs(pPSFont->m_Glyphs[j].m_AdjustMatrix[2] -
                         charpos.m_AdjustMatrix[2]) < 0.01 &&
              FXSYS_fabs(pPSFont->m_Glyphs[j].m_AdjustMatrix[3] -
                         charpos.m_AdjustMatrix[3]) < 0.01))) {
          ps_fontnum = i;
          ps_glyphindex = j;
          return;
        }
      }
  }
  if (m_PSFontList.GetSize() == 0 ||
      m_PSFontList[m_PSFontList.GetSize() - 1]->m_nGlyphs == 256) {
    CPSFont* pPSFont = new CPSFont;
    if (!pPSFont) {
      return;
    }
    pPSFont->m_nGlyphs = 0;
    m_PSFontList.Add(pPSFont);
    CFX_ByteTextBuf buf;
    buf << FX_BSTRC(
        "8 dict begin/FontType 3 def/FontMatrix[1 0 0 1 0 0]def\n"
        "/FontBBox[0 0 0 0]def/Encoding 256 array def 0 1 255{Encoding "
        "exch/.notdef put}for\n"
        "/CharProcs 1 dict def CharProcs begin/.notdef {} def end\n"
        "/BuildGlyph{1 0 -10 -10 10 10 setcachedevice exch/CharProcs get exch "
        "2 copy known not{pop/.notdef}if get exec}bind def\n"
        "/BuildChar{1 index/Encoding get exch get 1 index/BuildGlyph get "
        "exec}bind def\n"
        "currentdict end\n");
    buf << FX_BSTRC("/X") << m_PSFontList.GetSize() - 1
        << FX_BSTRC(" exch definefont pop\n");
    m_pOutput->OutputPS((const FX_CHAR*)buf.GetBuffer(), buf.GetSize());
    buf.Clear();
  }
  ps_fontnum = m_PSFontList.GetSize() - 1;
  CPSFont* pPSFont = m_PSFontList[ps_fontnum];
  ps_glyphindex = pPSFont->m_nGlyphs;
  pPSFont->m_Glyphs[ps_glyphindex].m_GlyphIndex = charpos.m_GlyphIndex;
  pPSFont->m_Glyphs[ps_glyphindex].m_pFont = pFont;
  pPSFont->m_Glyphs[ps_glyphindex].m_bGlyphAdjust = charpos.m_bGlyphAdjust;
  if (charpos.m_bGlyphAdjust) {
    pPSFont->m_Glyphs[ps_glyphindex].m_AdjustMatrix[0] =
        charpos.m_AdjustMatrix[0];
    pPSFont->m_Glyphs[ps_glyphindex].m_AdjustMatrix[1] =
        charpos.m_AdjustMatrix[1];
    pPSFont->m_Glyphs[ps_glyphindex].m_AdjustMatrix[2] =
        charpos.m_AdjustMatrix[2];
    pPSFont->m_Glyphs[ps_glyphindex].m_AdjustMatrix[3] =
        charpos.m_AdjustMatrix[3];
  }
  pPSFont->m_nGlyphs++;
  CFX_AffineMatrix matrix;
  if (charpos.m_bGlyphAdjust)
    matrix.Set(charpos.m_AdjustMatrix[0], charpos.m_AdjustMatrix[1],
               charpos.m_AdjustMatrix[2], charpos.m_AdjustMatrix[3], 0, 0);
  matrix.Concat(1.0f, 0, 0, 1.0f, 0, 0);
  const CFX_PathData* pPathData = pFaceCache->LoadGlyphPath(
      pFont, charpos.m_GlyphIndex, charpos.m_FontCharWidth);
  if (pPathData == NULL) {
    return;
  }
  CFX_PathData TransformedPath(*pPathData);
  if (charpos.m_bGlyphAdjust) {
    TransformedPath.Transform(&matrix);
  }
  CFX_ByteTextBuf buf;
  buf << FX_BSTRC("/X") << ps_fontnum << FX_BSTRC(" Ff/CharProcs get begin/")
      << ps_glyphindex << FX_BSTRC("{");
  buf << FX_BSTRC("n ");
  for (int p = 0; p < TransformedPath.GetPointCount(); p++) {
    FX_FLOAT x = TransformedPath.GetPointX(p), y = TransformedPath.GetPointY(p);
    switch (TransformedPath.GetFlag(p) & FXPT_TYPE) {
      case FXPT_MOVETO: {
        buf << x << FX_BSTRC(" ") << y << FX_BSTRC(" m\n");
        break;
      }
      case FXPT_LINETO: {
        buf << x << FX_BSTRC(" ") << y << FX_BSTRC(" l\n");
        break;
      }
      case FXPT_BEZIERTO: {
        buf << x << FX_BSTRC(" ") << y << FX_BSTRC(" ")
            << TransformedPath.GetPointX(p + 1) << FX_BSTRC(" ")
            << TransformedPath.GetPointY(p + 1) << FX_BSTRC(" ")
            << TransformedPath.GetPointX(p + 2) << FX_BSTRC(" ")
            << TransformedPath.GetPointY(p + 2) << FX_BSTRC(" c\n");
        p += 2;
        break;
      }
    }
  }
  buf << FX_BSTRC("f");
  buf << FX_BSTRC("}bind def end\n");
  buf << FX_BSTRC("/X") << ps_fontnum << FX_BSTRC(" Ff/Encoding get ")
      << ps_glyphindex << FX_BSTRC("/") << ps_glyphindex << FX_BSTRC(" put\n");
  m_pOutput->OutputPS((const FX_CHAR*)buf.GetBuffer(), buf.GetSize());
}
FX_BOOL CFX_PSRenderer::DrawText(int nChars,
                                 const FXTEXT_CHARPOS* pCharPos,
                                 CFX_Font* pFont,
                                 CFX_FontCache* pCache,
                                 const CFX_AffineMatrix* pObject2Device,
                                 FX_FLOAT font_size,
                                 FX_DWORD color,
                                 int alpha_flag,
                                 void* pIccTransform) {
  StartRendering();
  int alpha = FXGETFLAG_COLORTYPE(alpha_flag) ? FXGETFLAG_ALPHA_FILL(alpha_flag)
                                              : FXARGB_A(color);
  if (alpha < 255) {
    return FALSE;
  }
  if ((pObject2Device->a == 0 && pObject2Device->b == 0) ||
      (pObject2Device->c == 0 && pObject2Device->d == 0)) {
    return TRUE;
  }
  SetColor(color, alpha_flag, pIccTransform);
  CFX_ByteTextBuf buf;
  buf << FX_BSTRC("q[") << pObject2Device->a << FX_BSTRC(" ")
      << pObject2Device->b << FX_BSTRC(" ") << pObject2Device->c
      << FX_BSTRC(" ") << pObject2Device->d;
  buf << FX_BSTRC(" ") << pObject2Device->e << FX_BSTRC(" ")
      << pObject2Device->f << "]cm\n";
  if (pCache == NULL) {
    pCache = CFX_GEModule::Get()->GetFontCache();
  }
  CFX_FaceCache* pFaceCache = pCache->GetCachedFace(pFont);
  FX_FONTCACHE_DEFINE(pCache, pFont);
  int last_fontnum = -1;
  for (int i = 0; i < nChars; i++) {
    int ps_fontnum, ps_glyphindex;
    FindPSFontGlyph(pFaceCache, pFont, pCharPos[i], ps_fontnum, ps_glyphindex);
    if (last_fontnum != ps_fontnum) {
      buf << FX_BSTRC("/X") << ps_fontnum << FX_BSTRC(" Ff ") << font_size
          << FX_BSTRC(" Fs Sf ");
      last_fontnum = ps_fontnum;
    }
    buf << pCharPos[i].m_OriginX << FX_BSTRC(" ") << pCharPos[i].m_OriginY
        << FX_BSTRC(" m");
    CFX_ByteString hex;
    hex.Format("<%02X>", ps_glyphindex);
    buf << hex << FX_BSTRC("Tj\n");
  }
  buf << FX_BSTRC("Q\n");
  m_pOutput->OutputPS((const FX_CHAR*)buf.GetBuffer(), buf.GetSize());
  return TRUE;
}
void CFX_PSRenderer::WritePSBinary(const uint8_t* data, int len) {
  uint8_t* dest_buf;
  FX_DWORD dest_size;
  CCodec_ModuleMgr* pEncoders = CFX_GEModule::Get()->GetCodecModule();
  if (pEncoders &&
      pEncoders->GetBasicModule()->A85Encode(data, len, dest_buf, dest_size)) {
    m_pOutput->OutputPS((const FX_CHAR*)dest_buf, dest_size);
    FX_Free(dest_buf);
  } else {
    m_pOutput->OutputPS((const FX_CHAR*)data, len);
  }
}