Revert postscript code removal.

Revert CL http://crrev.com/2608663003 in preparation for adding
postscript generation to Pdfium.

Note postscript generation code will not be called until additional
patches land. These patches will also include modifications needed to
make this code functional (currently missing a few compression functions).

BUG=

Review-Url: https://codereview.chromium.org/2615703002

6 files changed, 362 insertions, 23 deletions

diff --git a/core/fxcodec/codec/ccodec_basicmodule.h b/core/fxcodec/codec/ccodec_basicmodule.h
index 425b5d7229..015f41a4a4 100644
--- a/core/fxcodec/codec/ccodec_basicmodule.h
+++ b/core/fxcodec/codec/ccodec_basicmodule.h
@@ -22,6 +22,14 @@ class CCodec_BasicModule {
       int height,
       int nComps,
       int bpc);
+  bool RunLengthEncode(const uint8_t* src_buf,
+                       uint32_t src_size,
+                       uint8_t** dest_buf,
+                       uint32_t* dest_size);
+  bool A85Encode(const uint8_t* src_buf,
+                 uint32_t src_size,
+                 uint8_t** dest_buf,
+                 uint32_t* dest_size);
 };
 
 #endif  // CORE_FXCODEC_CODEC_CCODEC_BASICMODULE_H_
diff --git a/core/fxcodec/codec/ccodec_faxmodule.h b/core/fxcodec/codec/ccodec_faxmodule.h
index ce9e97bbe9..92e45e6719 100644
--- a/core/fxcodec/codec/ccodec_faxmodule.h
+++ b/core/fxcodec/codec/ccodec_faxmodule.h
@@ -9,6 +9,7 @@
 
 #include <memory>
 
+#include "core/fxcrt/fx_memory.h"
 #include "core/fxcrt/fx_system.h"
 
 class CCodec_ScanlineDecoder;
@@ -25,6 +26,14 @@ class CCodec_FaxModule {
                                                         bool BlackIs1,
                                                         int Columns,
                                                         int Rows);
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
+  static void FaxEncode(const uint8_t* src_buf,
+                        int width,
+                        int height,
+                        int pitch,
+                        std::unique_ptr<uint8_t, FxFreeDeleter>* dest_buf,
+                        uint32_t* dest_size);
+#endif
 };
 
 #endif  // CORE_FXCODEC_CODEC_CCODEC_FAXMODULE_H_
diff --git a/core/fxcodec/codec/ccodec_jpegmodule.h b/core/fxcodec/codec/ccodec_jpegmodule.h
index b2ae731bb4..bad6fa6a94 100644
--- a/core/fxcodec/codec/ccodec_jpegmodule.h
+++ b/core/fxcodec/codec/ccodec_jpegmodule.h
@@ -58,6 +58,12 @@ class CCodec_JpegModule {
   bool StartScanline(FXJPEG_Context* pContext, int down_scale);
   bool ReadScanline(FXJPEG_Context* pContext, uint8_t* dest_buf);
   uint32_t GetAvailInput(FXJPEG_Context* pContext, uint8_t** avail_buf_ptr);
+
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
+  static bool JpegEncode(const CFX_DIBSource* pSource,
+                         uint8_t** dest_buf,
+                         FX_STRSIZE* dest_size);
+#endif
 };
 
 #endif  // CORE_FXCODEC_CODEC_CCODEC_JPEGMODULE_H_
diff --git a/core/fxcodec/codec/fx_codec.cpp b/core/fxcodec/codec/fx_codec.cpp
index aa2ecef345..6b6c723388 100644
--- a/core/fxcodec/codec/fx_codec.cpp
+++ b/core/fxcodec/codec/fx_codec.cpp
@@ -97,6 +97,20 @@ uint8_t* CCodec_ScanlineDecoder::ReadNextLine() {
   return v_GetNextLine();
 }
 
+bool CCodec_BasicModule::RunLengthEncode(const uint8_t* src_buf,
+                                         uint32_t src_size,
+                                         uint8_t** dest_buf,
+                                         uint32_t* dest_size) {
+  return false;
+}
+
+bool CCodec_BasicModule::A85Encode(const uint8_t* src_buf,
+                                   uint32_t src_size,
+                                   uint8_t** dest_buf,
+                                   uint32_t* dest_size) {
+  return false;
+}
+
 #ifdef PDF_ENABLE_XFA
 CFX_DIBAttribute::CFX_DIBAttribute()
     : m_nXDPI(-1),
diff --git a/core/fxcodec/codec/fx_codec_fax.cpp b/core/fxcodec/codec/fx_codec_fax.cpp
index 62ad38e19f..8a9c3efbc7 100644
--- a/core/fxcodec/codec/fx_codec_fax.cpp
+++ b/core/fxcodec/codec/fx_codec_fax.cpp
@@ -10,6 +10,7 @@
 
 #include "core/fxcodec/codec/codec_int.h"
 #include "core/fxcodec/fx_codec.h"
+#include "core/fxcrt/fx_memory.h"
 #include "third_party/base/ptr_util.h"
 
 namespace {
@@ -44,10 +45,7 @@ const uint8_t ZeroLeadPos[256] = {
 // Limit of image dimension, an arbitrary large number.
 const int kMaxImageDimension = 0x01FFFF;
 
-int FindBit(const std::vector<uint8_t>& data_buf,
-            int max_pos,
-            int start_pos,
-            int bit) {
+int FindBit(const uint8_t* data_buf, int max_pos, int start_pos, int bit) {
   ASSERT(start_pos >= 0);
   if (start_pos >= max_pos)
     return max_pos;
@@ -88,20 +86,20 @@ void FaxG4FindB1B2(const std::vector<uint8_t>& ref_buf,
                    int* b2) {
   uint8_t first_bit =
       (a0 < 0) ? 1 : ((ref_buf[a0 / 8] & (1 << (7 - a0 % 8))) != 0);
-  *b1 = FindBit(ref_buf, columns, a0 + 1, !first_bit);
+  *b1 = FindBit(ref_buf.data(), columns, a0 + 1, !first_bit);
   if (*b1 >= columns) {
     *b1 = *b2 = columns;
     return;
   }
   if (first_bit == !a0color) {
-    *b1 = FindBit(ref_buf, columns, *b1 + 1, first_bit);
+    *b1 = FindBit(ref_buf.data(), columns, *b1 + 1, first_bit);
     first_bit = !first_bit;
   }
   if (*b1 >= columns) {
     *b1 = *b2 = columns;
     return;
   }
-  *b2 = FindBit(ref_buf, columns, *b1 + 1, first_bit);
+  *b2 = FindBit(ref_buf.data(), columns, *b1 + 1, first_bit);
 }
 
 void FaxFillBits(uint8_t* dest_buf, int columns, int startpos, int endpos) {
@@ -609,3 +607,203 @@ std::unique_ptr<CCodec_ScanlineDecoder> CCodec_FaxModule::CreateDecoder(
       src_buf, src_size, actual_width, actual_height, pitch, K, EndOfLine,
       EncodedByteAlign, BlackIs1);
 }
+
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
+namespace {
+const uint8_t BlackRunTerminator[128] = {
+    0x37, 10, 0x02, 3,  0x03, 2,  0x02, 2,  0x03, 3,  0x03, 4,  0x02, 4,
+    0x03, 5,  0x05, 6,  0x04, 6,  0x04, 7,  0x05, 7,  0x07, 7,  0x04, 8,
+    0x07, 8,  0x18, 9,  0x17, 10, 0x18, 10, 0x08, 10, 0x67, 11, 0x68, 11,
+    0x6c, 11, 0x37, 11, 0x28, 11, 0x17, 11, 0x18, 11, 0xca, 12, 0xcb, 12,
+    0xcc, 12, 0xcd, 12, 0x68, 12, 0x69, 12, 0x6a, 12, 0x6b, 12, 0xd2, 12,
+    0xd3, 12, 0xd4, 12, 0xd5, 12, 0xd6, 12, 0xd7, 12, 0x6c, 12, 0x6d, 12,
+    0xda, 12, 0xdb, 12, 0x54, 12, 0x55, 12, 0x56, 12, 0x57, 12, 0x64, 12,
+    0x65, 12, 0x52, 12, 0x53, 12, 0x24, 12, 0x37, 12, 0x38, 12, 0x27, 12,
+    0x28, 12, 0x58, 12, 0x59, 12, 0x2b, 12, 0x2c, 12, 0x5a, 12, 0x66, 12,
+    0x67, 12,
+};
+
+const uint8_t BlackRunMarkup[80] = {
+    0x0f, 10, 0xc8, 12, 0xc9, 12, 0x5b, 12, 0x33, 12, 0x34, 12, 0x35, 12,
+    0x6c, 13, 0x6d, 13, 0x4a, 13, 0x4b, 13, 0x4c, 13, 0x4d, 13, 0x72, 13,
+    0x73, 13, 0x74, 13, 0x75, 13, 0x76, 13, 0x77, 13, 0x52, 13, 0x53, 13,
+    0x54, 13, 0x55, 13, 0x5a, 13, 0x5b, 13, 0x64, 13, 0x65, 13, 0x08, 11,
+    0x0c, 11, 0x0d, 11, 0x12, 12, 0x13, 12, 0x14, 12, 0x15, 12, 0x16, 12,
+    0x17, 12, 0x1c, 12, 0x1d, 12, 0x1e, 12, 0x1f, 12,
+};
+
+const uint8_t WhiteRunTerminator[128] = {
+    0x35, 8, 0x07, 6, 0x07, 4, 0x08, 4, 0x0B, 4, 0x0C, 4, 0x0E, 4, 0x0F, 4,
+    0x13, 5, 0x14, 5, 0x07, 5, 0x08, 5, 0x08, 6, 0x03, 6, 0x34, 6, 0x35, 6,
+    0x2a, 6, 0x2B, 6, 0x27, 7, 0x0c, 7, 0x08, 7, 0x17, 7, 0x03, 7, 0x04, 7,
+    0x28, 7, 0x2B, 7, 0x13, 7, 0x24, 7, 0x18, 7, 0x02, 8, 0x03, 8, 0x1a, 8,
+    0x1b, 8, 0x12, 8, 0x13, 8, 0x14, 8, 0x15, 8, 0x16, 8, 0x17, 8, 0x28, 8,
+    0x29, 8, 0x2a, 8, 0x2b, 8, 0x2c, 8, 0x2d, 8, 0x04, 8, 0x05, 8, 0x0a, 8,
+    0x0b, 8, 0x52, 8, 0x53, 8, 0x54, 8, 0x55, 8, 0x24, 8, 0x25, 8, 0x58, 8,
+    0x59, 8, 0x5a, 8, 0x5b, 8, 0x4a, 8, 0x4b, 8, 0x32, 8, 0x33, 8, 0x34, 8,
+};
+
+const uint8_t WhiteRunMarkup[80] = {
+    0x1b, 5,  0x12, 5,  0x17, 6,  0x37, 7,  0x36, 8,  0x37, 8,  0x64, 8,
+    0x65, 8,  0x68, 8,  0x67, 8,  0xcc, 9,  0xcd, 9,  0xd2, 9,  0xd3, 9,
+    0xd4, 9,  0xd5, 9,  0xd6, 9,  0xd7, 9,  0xd8, 9,  0xd9, 9,  0xda, 9,
+    0xdb, 9,  0x98, 9,  0x99, 9,  0x9a, 9,  0x18, 6,  0x9b, 9,  0x08, 11,
+    0x0c, 11, 0x0d, 11, 0x12, 12, 0x13, 12, 0x14, 12, 0x15, 12, 0x16, 12,
+    0x17, 12, 0x1c, 12, 0x1d, 12, 0x1e, 12, 0x1f, 12,
+};
+
+void AddBitStream(uint8_t* dest_buf, int* dest_bitpos, int data, int bitlen) {
+  for (int i = bitlen - 1; i >= 0; i--) {
+    if (data & (1 << i)) {
+      dest_buf[*dest_bitpos / 8] |= 1 << (7 - *dest_bitpos % 8);
+    }
+    (*dest_bitpos)++;
+  }
+}
+
+void FaxEncodeRun(uint8_t* dest_buf, int* dest_bitpos, int run, bool bWhite) {
+  while (run >= 2560) {
+    AddBitStream(dest_buf, dest_bitpos, 0x1f, 12);
+    run -= 2560;
+  }
+  if (run >= 64) {
+    int markup = run - run % 64;
+    const uint8_t* p = bWhite ? WhiteRunMarkup : BlackRunMarkup;
+    p += (markup / 64 - 1) * 2;
+    AddBitStream(dest_buf, dest_bitpos, *p, p[1]);
+  }
+  run %= 64;
+  const uint8_t* p = bWhite ? WhiteRunTerminator : BlackRunTerminator;
+  p += run * 2;
+  AddBitStream(dest_buf, dest_bitpos, *p, p[1]);
+}
+
+void FaxEncode2DLine(uint8_t* dest_buf,
+                     int* dest_bitpos,
+                     const uint8_t* src_buf,
+                     const std::vector<uint8_t>& ref_buf,
+                     int cols) {
+  int a0 = -1;
+  bool a0color = true;
+  while (1) {
+    int a1 = FindBit(src_buf, cols, a0 + 1, !a0color);
+    int b1;
+    int b2;
+    FaxG4FindB1B2(ref_buf, cols, a0, a0color, &b1, &b2);
+    if (b2 < a1) {
+      *dest_bitpos += 3;
+      dest_buf[*dest_bitpos / 8] |= 1 << (7 - *dest_bitpos % 8);
+      (*dest_bitpos)++;
+      a0 = b2;
+    } else if (a1 - b1 <= 3 && b1 - a1 <= 3) {
+      int delta = a1 - b1;
+      switch (delta) {
+        case 0:
+          dest_buf[*dest_bitpos / 8] |= 1 << (7 - *dest_bitpos % 8);
+          break;
+        case 1:
+        case 2:
+        case 3:
+          *dest_bitpos += delta == 1 ? 1 : delta + 2;
+          dest_buf[*dest_bitpos / 8] |= 1 << (7 - *dest_bitpos % 8);
+          (*dest_bitpos)++;
+          dest_buf[*dest_bitpos / 8] |= 1 << (7 - *dest_bitpos % 8);
+          break;
+        case -1:
+        case -2:
+        case -3:
+          *dest_bitpos += delta == -1 ? 1 : -delta + 2;
+          dest_buf[*dest_bitpos / 8] |= 1 << (7 - *dest_bitpos % 8);
+          (*dest_bitpos)++;
+          break;
+      }
+      (*dest_bitpos)++;
+      a0 = a1;
+      a0color = !a0color;
+    } else {
+      int a2 = FindBit(src_buf, cols, a1 + 1, a0color);
+      (*dest_bitpos)++;
+      (*dest_bitpos)++;
+      dest_buf[*dest_bitpos / 8] |= 1 << (7 - *dest_bitpos % 8);
+      (*dest_bitpos)++;
+      if (a0 < 0) {
+        a0 = 0;
+      }
+      FaxEncodeRun(dest_buf, dest_bitpos, a1 - a0, a0color);
+      FaxEncodeRun(dest_buf, dest_bitpos, a2 - a1, !a0color);
+      a0 = a2;
+    }
+    if (a0 >= cols) {
+      return;
+    }
+  }
+}
+
+class CCodec_FaxEncoder {
+ public:
+  CCodec_FaxEncoder(const uint8_t* src_buf, int width, int height, int pitch);
+  ~CCodec_FaxEncoder();
+  void Encode(std::unique_ptr<uint8_t, FxFreeDeleter>* dest_buf,
+              uint32_t* dest_size);
+
+ private:
+  CFX_BinaryBuf m_DestBuf;
+  std::vector<uint8_t> m_RefLine;
+  uint8_t* m_pLineBuf;
+  const int m_Cols;
+  const int m_Rows;
+  const int m_Pitch;
+  const uint8_t* m_pSrcBuf;
+};
+
+CCodec_FaxEncoder::CCodec_FaxEncoder(const uint8_t* src_buf,
+                                     int width,
+                                     int height,
+                                     int pitch)
+    : m_Cols(width), m_Rows(height), m_Pitch(pitch), m_pSrcBuf(src_buf) {
+  m_RefLine.resize(m_Pitch);
+  FXSYS_memset(m_RefLine.data(), 0xff, m_Pitch);
+  m_pLineBuf = FX_Alloc2D(uint8_t, m_Pitch, 8);
+  m_DestBuf.EstimateSize(0, 10240);
+}
+
+CCodec_FaxEncoder::~CCodec_FaxEncoder() {
+  FX_Free(m_pLineBuf);
+}
+
+void CCodec_FaxEncoder::Encode(
+    std::unique_ptr<uint8_t, FxFreeDeleter>* dest_buf,
+    uint32_t* dest_size) {
+  int dest_bitpos = 0;
+  uint8_t last_byte = 0;
+  for (int i = 0; i < m_Rows; i++) {
+    const uint8_t* scan_line = m_pSrcBuf + i * m_Pitch;
+    FXSYS_memset(m_pLineBuf, 0, m_Pitch * 8);
+    m_pLineBuf[0] = last_byte;
+    FaxEncode2DLine(m_pLineBuf, &dest_bitpos, scan_line, m_RefLine, m_Cols);
+    m_DestBuf.AppendBlock(m_pLineBuf, dest_bitpos / 8);
+    last_byte = m_pLineBuf[dest_bitpos / 8];
+    dest_bitpos %= 8;
+    FXSYS_memcpy(m_RefLine.data(), scan_line, m_Pitch);
+  }
+  if (dest_bitpos) {
+    m_DestBuf.AppendByte(last_byte);
+  }
+  *dest_size = m_DestBuf.GetSize();
+  *dest_buf = m_DestBuf.DetachBuffer();
+}
+
+}  // namespace
+
+void CCodec_FaxModule::FaxEncode(
+    const uint8_t* src_buf,
+    int width,
+    int height,
+    int pitch,
+    std::unique_ptr<uint8_t, FxFreeDeleter>* dest_buf,
+    uint32_t* dest_size) {
+  CCodec_FaxEncoder encoder(src_buf, width, height, pitch);
+  encoder.Encode(dest_buf, dest_size);
+}
+
+#endif
diff --git a/core/fxcodec/codec/fx_codec_jpeg.cpp b/core/fxcodec/codec/fx_codec_jpeg.cpp
index fdfdd4faeb..c797605575 100644
--- a/core/fxcodec/codec/fx_codec_jpeg.cpp
+++ b/core/fxcodec/codec/fx_codec_jpeg.cpp
@@ -27,6 +27,7 @@ extern "C" {
 }
 
 extern "C" {
+
 static void JpegScanSOI(const uint8_t** src_buf, uint32_t* src_size) {
   if (*src_size == 0)
     return;
@@ -41,16 +42,13 @@ static void JpegScanSOI(const uint8_t** src_buf, uint32_t* src_size) {
     offset++;
   }
 }
-};
-extern "C" {
+
 static void _src_do_nothing(struct jpeg_decompress_struct* cinfo) {}
-};
-extern "C" {
+
 static void _error_fatal(j_common_ptr cinfo) {
   longjmp(*(jmp_buf*)cinfo->client_data, -1);
 }
-};
-extern "C" {
+
 static void _src_skip_data(struct jpeg_decompress_struct* cinfo, long num) {
   if (num > (long)cinfo->src->bytes_in_buffer) {
     _error_fatal((j_common_ptr)cinfo);
@@ -58,25 +56,28 @@ static void _src_skip_data(struct jpeg_decompress_struct* cinfo, long num) {
   cinfo->src->next_input_byte += num;
   cinfo->src->bytes_in_buffer -= num;
 }
-};
-extern "C" {
+
 static boolean _src_fill_buffer(j_decompress_ptr cinfo) {
   return 0;
 }
-};
-extern "C" {
+
 static boolean _src_resync(j_decompress_ptr cinfo, int desired) {
   return 0;
 }
-};
-extern "C" {
+
 static void _error_do_nothing(j_common_ptr cinfo) {}
-};
-extern "C" {
+
 static void _error_do_nothing1(j_common_ptr cinfo, int) {}
-};
-extern "C" {
+
 static void _error_do_nothing2(j_common_ptr cinfo, char*) {}
+
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
+static void _dest_do_nothing(j_compress_ptr cinfo) {}
+
+static boolean _dest_empty(j_compress_ptr cinfo) {
+  return false;
+}
+#endif
 };
 
 #define JPEG_MARKER_ICC (JPEG_APP0 + 2)
@@ -480,3 +481,106 @@ uint32_t CCodec_JpegModule::GetAvailInput(FXJPEG_Context* ctx,
   }
   return (uint32_t)ctx->m_SrcMgr.bytes_in_buffer;
 }
+
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
+#define JPEG_BLOCK_SIZE 1048576
+bool CCodec_JpegModule::JpegEncode(const CFX_DIBSource* pSource,
+                                   uint8_t** dest_buf,
+                                   FX_STRSIZE* dest_size) {
+  struct jpeg_error_mgr jerr;
+  jerr.error_exit = _error_do_nothing;
+  jerr.emit_message = _error_do_nothing1;
+  jerr.output_message = _error_do_nothing;
+  jerr.format_message = _error_do_nothing2;
+  jerr.reset_error_mgr = _error_do_nothing;
+
+  struct jpeg_compress_struct cinfo;
+  memset(&cinfo, 0, sizeof(cinfo));
+  cinfo.err = &jerr;
+  jpeg_create_compress(&cinfo);
+  int Bpp = pSource->GetBPP() / 8;
+  uint32_t nComponents = Bpp >= 3 ? (pSource->IsCmykImage() ? 4 : 3) : 1;
+  uint32_t pitch = pSource->GetPitch();
+  uint32_t width = pdfium::base::checked_cast<uint32_t>(pSource->GetWidth());
+  uint32_t height = pdfium::base::checked_cast<uint32_t>(pSource->GetHeight());
+  FX_SAFE_UINT32 safe_buf_len = width;
+  safe_buf_len *= height;
+  safe_buf_len *= nComponents;
+  safe_buf_len += 1024;
+  if (!safe_buf_len.IsValid())
+    return false;
+
+  uint32_t dest_buf_length = safe_buf_len.ValueOrDie();
+  *dest_buf = FX_TryAlloc(uint8_t, dest_buf_length);
+  const int MIN_TRY_BUF_LEN = 1024;
+  while (!(*dest_buf) && dest_buf_length > MIN_TRY_BUF_LEN) {
+    dest_buf_length >>= 1;
+    *dest_buf = FX_TryAlloc(uint8_t, dest_buf_length);
+  }
+  if (!(*dest_buf))
+    return false;
+
+  struct jpeg_destination_mgr dest;
+  dest.init_destination = _dest_do_nothing;
+  dest.term_destination = _dest_do_nothing;
+  dest.empty_output_buffer = _dest_empty;
+  dest.next_output_byte = *dest_buf;
+  dest.free_in_buffer = dest_buf_length;
+  cinfo.dest = &dest;
+  cinfo.image_width = width;
+  cinfo.image_height = height;
+  cinfo.input_components = nComponents;
+  if (nComponents == 1) {
+    cinfo.in_color_space = JCS_GRAYSCALE;
+  } else if (nComponents == 3) {
+    cinfo.in_color_space = JCS_RGB;
+  } else {
+    cinfo.in_color_space = JCS_CMYK;
+  }
+  uint8_t* line_buf = nullptr;
+  if (nComponents > 1)
+    line_buf = FX_Alloc2D(uint8_t, width, nComponents);
+
+  jpeg_set_defaults(&cinfo);
+  jpeg_start_compress(&cinfo, TRUE);
+  JSAMPROW row_pointer[1];
+  JDIMENSION row;
+  while (cinfo.next_scanline < cinfo.image_height) {
+    const uint8_t* src_scan = pSource->GetScanline(cinfo.next_scanline);
+    if (nComponents > 1) {
+      uint8_t* dest_scan = line_buf;
+      if (nComponents == 3) {
+        for (uint32_t i = 0; i < width; i++) {
+          dest_scan[0] = src_scan[2];
+          dest_scan[1] = src_scan[1];
+          dest_scan[2] = src_scan[0];
+          dest_scan += 3;
+          src_scan += Bpp;
+        }
+      } else {
+        for (uint32_t i = 0; i < pitch; i++) {
+          *dest_scan++ = ~*src_scan++;
+        }
+      }
+      row_pointer[0] = line_buf;
+    } else {
+      row_pointer[0] = (uint8_t*)src_scan;
+    }
+    row = cinfo.next_scanline;
+    jpeg_write_scanlines(&cinfo, row_pointer, 1);
+    if (cinfo.next_scanline == row) {
+      *dest_buf =
+          FX_Realloc(uint8_t, *dest_buf, dest_buf_length + JPEG_BLOCK_SIZE);
+      dest.next_output_byte = *dest_buf + dest_buf_length - dest.free_in_buffer;
+      dest_buf_length += JPEG_BLOCK_SIZE;
+      dest.free_in_buffer += JPEG_BLOCK_SIZE;
+    }
+  }
+  jpeg_finish_compress(&cinfo);
+  jpeg_destroy_compress(&cinfo);
+  FX_Free(line_buf);
+  *dest_size = dest_buf_length - (FX_STRSIZE)dest.free_in_buffer;
+
+  return true;
+}
+#endif