Cleanup the xfa/src/fgas directory.

This CL moves the code from xfa/src/fgas/src up one level. It then takes the
headers in xfa/src/fgas/include and moves them to their correct folder. The
src/ and include/ directories are then removed.

In some cases, when moving from include/ there was another header with the
same name. Those headers were either folded together, or the content of the
conflicting folder moved to an anonymous namespace in the cpp file as they were
not used anywhere else.

Files with duplicate names as core/src/crt were renamed to be fgas_ instead of
fx_. (e.g. fgas_system.h, fgas_memory.h, fgas_stream.h)

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1776303002 .

1 files changed, 153 insertions, 0 deletions

diff --git a/xfa/src/fgas/font/fgas_fontutils.cpp b/xfa/src/fgas/font/fgas_fontutils.cpp
new file mode 100644
index 0000000000..62f26f515a
--- /dev/null
+++ b/xfa/src/fgas/font/fgas_fontutils.cpp
@@ -0,0 +1,153 @@
+// 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 "xfa/src/fgas/font/fgas_fontutils.h"
+
+#include "core/include/fxcrt/fx_ext.h"
+#include "xfa/src/fgas/font/fgas_font.h"
+
+FX_DWORD FGAS_GetFontHashCode(FX_WORD wCodePage, FX_DWORD dwFontStyles) {
+  FX_DWORD dwHash = wCodePage;
+  if (dwFontStyles & FX_FONTSTYLE_FixedPitch) {
+    dwHash |= 0x00010000;
+  }
+  if (dwFontStyles & FX_FONTSTYLE_Serif) {
+    dwHash |= 0x00020000;
+  }
+  if (dwFontStyles & FX_FONTSTYLE_Symbolic) {
+    dwHash |= 0x00040000;
+  }
+  if (dwFontStyles & FX_FONTSTYLE_Script) {
+    dwHash |= 0x00080000;
+  }
+  if (dwFontStyles & FX_FONTSTYLE_Italic) {
+    dwHash |= 0x00100000;
+  }
+  if (dwFontStyles & FX_FONTSTYLE_Bold) {
+    dwHash |= 0x00200000;
+  }
+  return dwHash;
+}
+FX_DWORD FGAS_GetFontFamilyHash(const FX_WCHAR* pszFontFamily,
+                                FX_DWORD dwFontStyles,
+                                FX_WORD wCodePage) {
+  CFX_WideString wsFont(pszFontFamily);
+  if (dwFontStyles & FX_FONTSTYLE_Bold) {
+    wsFont += L"Bold";
+  }
+  if (dwFontStyles & FX_FONTSTYLE_Italic) {
+    wsFont += L"Italic";
+  }
+  wsFont += wCodePage;
+  return FX_HashCode_String_GetW((const FX_WCHAR*)wsFont, wsFont.GetLength());
+}
+static const FGAS_FONTUSB g_FXGdiFontUSBTable[] = {
+    {0x0000, 0x007F, 0, 1252},     {0x0080, 0x00FF, 1, 1252},
+    {0x0100, 0x017F, 2, 1250},     {0x0180, 0x024F, 3, 1250},
+    {0x0250, 0x02AF, 4, 0xFFFF},   {0x02B0, 0x02FF, 5, 0xFFFF},
+    {0x0300, 0x036F, 6, 0xFFFF},   {0x0370, 0x03FF, 7, 1253},
+    {0x0400, 0x04FF, 9, 1251},     {0x0500, 0x052F, 9, 0xFFFF},
+    {0x0530, 0x058F, 10, 0xFFFF},  {0x0590, 0x05FF, 11, 1255},
+    {0x0600, 0x06FF, 13, 1256},    {0x0700, 0x074F, 71, 0xFFFF},
+    {0x0750, 0x077F, 13, 0xFFFF},  {0x0780, 0x07BF, 72, 0xFFFF},
+    {0x07C0, 0x07FF, 14, 0xFFFF},  {0x0800, 0x08FF, 999, 0xFFFF},
+    {0x0900, 0x097F, 15, 0xFFFF},  {0x0980, 0x09FF, 16, 0xFFFF},
+    {0x0A00, 0x0A7F, 17, 0xFFFF},  {0x0A80, 0x0AFF, 18, 0xFFFF},
+    {0x0B00, 0x0B7F, 19, 0xFFFF},  {0x0B80, 0x0BFF, 20, 0xFFFF},
+    {0x0C00, 0x0C7F, 21, 0xFFFF},  {0x0C80, 0x0CFF, 22, 0xFFFF},
+    {0x0D00, 0x0D7F, 23, 0xFFFF},  {0x0D80, 0x0DFF, 73, 0xFFFF},
+    {0x0E00, 0x0E7F, 24, 874},     {0x0E80, 0x0EFF, 25, 0xFFFF},
+    {0x0F00, 0x0FFF, 70, 0xFFFF},  {0x1000, 0x109F, 74, 0xFFFF},
+    {0x10A0, 0x10FF, 26, 0xFFFF},  {0x1100, 0x11FF, 28, 0xFFFF},
+    {0x1200, 0x137F, 75, 0xFFFF},  {0x1380, 0x139F, 75, 0xFFFF},
+    {0x13A0, 0x13FF, 76, 0xFFFF},  {0x1400, 0x167F, 77, 0xFFFF},
+    {0x1680, 0x169F, 78, 0xFFFF},  {0x16A0, 0x16FF, 79, 0xFFFF},
+    {0x1700, 0x171F, 84, 0xFFFF},  {0x1720, 0x173F, 84, 0xFFFF},
+    {0x1740, 0x175F, 84, 0xFFFF},  {0x1760, 0x177F, 84, 0xFFFF},
+    {0x1780, 0x17FF, 80, 0xFFFF},  {0x1800, 0x18AF, 81, 0xFFFF},
+    {0x18B0, 0x18FF, 999, 0xFFFF}, {0x1900, 0x194F, 93, 0xFFFF},
+    {0x1950, 0x197F, 94, 0xFFFF},  {0x1980, 0x19DF, 95, 0xFFFF},
+    {0x19E0, 0x19FF, 80, 0xFFFF},  {0x1A00, 0x1A1F, 96, 0xFFFF},
+    {0x1A20, 0x1AFF, 999, 0xFFFF}, {0x1B00, 0x1B7F, 27, 0xFFFF},
+    {0x1B80, 0x1BBF, 112, 0xFFFF}, {0x1BC0, 0x1BFF, 999, 0xFFFF},
+    {0x1C00, 0x1C4F, 113, 0xFFFF}, {0x1C50, 0x1C7F, 114, 0xFFFF},
+    {0x1C80, 0x1CFF, 999, 0xFFFF}, {0x1D00, 0x1D7F, 4, 0xFFFF},
+    {0x1D80, 0x1DBF, 4, 0xFFFF},   {0x1DC0, 0x1DFF, 6, 0xFFFF},
+    {0x1E00, 0x1EFF, 29, 0xFFFF},  {0x1F00, 0x1FFF, 30, 0xFFFF},
+    {0x2000, 0x206F, 31, 0xFFFF},  {0x2070, 0x209F, 32, 0xFFFF},
+    {0x20A0, 0x20CF, 33, 0xFFFF},  {0x20D0, 0x20FF, 34, 0xFFFF},
+    {0x2100, 0x214F, 35, 0xFFFF},  {0x2150, 0x215F, 36, 0xFFFF},
+    {0x2160, 0x216B, 36, 936},     {0x216C, 0x216F, 36, 0xFFFF},
+    {0x2170, 0x2179, 36, 936},     {0x217A, 0x218F, 36, 0xFFFF},
+    {0x2190, 0x2199, 37, 949},     {0x219A, 0x21FF, 37, 0xFFFF},
+    {0x2200, 0x22FF, 38, 0xFFFF},  {0x2300, 0x23FF, 39, 0xFFFF},
+    {0x2400, 0x243F, 40, 0xFFFF},  {0x2440, 0x245F, 41, 0xFFFF},
+    {0x2460, 0x2473, 42, 932},     {0x2474, 0x249B, 42, 936},
+    {0x249C, 0x24E9, 42, 949},     {0x24EA, 0x24FF, 42, 0xFFFF},
+    {0x2500, 0x2573, 43, 936},     {0x2574, 0x257F, 43, 0xFFFF},
+    {0x2580, 0x2580, 44, 0xFFFF},  {0x2581, 0x258F, 44, 936},
+    {0x2590, 0x259F, 44, 0xFFFF},  {0x25A0, 0x25FF, 45, 0xFFFF},
+    {0x2600, 0x26FF, 46, 0xFFFF},  {0x2700, 0x27BF, 47, 0xFFFF},
+    {0x27C0, 0x27EF, 38, 0xFFFF},  {0x27F0, 0x27FF, 37, 0xFFFF},
+    {0x2800, 0x28FF, 82, 0xFFFF},  {0x2900, 0x297F, 37, 0xFFFF},
+    {0x2980, 0x29FF, 38, 0xFFFF},  {0x2A00, 0x2AFF, 38, 0xFFFF},
+    {0x2B00, 0x2BFF, 37, 0xFFFF},  {0x2C00, 0x2C5F, 97, 0xFFFF},
+    {0x2C60, 0x2C7F, 29, 0xFFFF},  {0x2C80, 0x2CFF, 8, 0xFFFF},
+    {0x2D00, 0x2D2F, 26, 0xFFFF},  {0x2D30, 0x2D7F, 98, 0xFFFF},
+    {0x2D80, 0x2DDF, 75, 0xFFFF},  {0x2DE0, 0x2DFF, 9, 0xFFFF},
+    {0x2E00, 0x2E7F, 31, 0xFFFF},  {0x2E80, 0x2EFF, 59, 0xFFFF},
+    {0x2F00, 0x2FDF, 59, 0xFFFF},  {0x2FE0, 0x2FEF, 999, 0xFFFF},
+    {0x2FF0, 0x2FFF, 59, 0xFFFF},  {0x3000, 0x303F, 48, 0xFFFF},
+    {0x3040, 0x309F, 49, 932},     {0x30A0, 0x30FF, 50, 932},
+    {0x3100, 0x3129, 51, 936},     {0x312A, 0x312F, 51, 0xFFFF},
+    {0x3130, 0x318F, 52, 949},     {0x3190, 0x319F, 59, 0xFFFF},
+    {0x31A0, 0x31BF, 51, 0xFFFF},  {0x31C0, 0x31EF, 61, 0xFFFF},
+    {0x31F0, 0x31FF, 50, 0xFFFF},  {0x3200, 0x321C, 54, 949},
+    {0x321D, 0x325F, 54, 0xFFFF},  {0x3260, 0x327F, 54, 949},
+    {0x3280, 0x32FF, 54, 0xFFFF},  {0x3300, 0x3387, 55, 0xFFFF},
+    {0x3388, 0x33D0, 55, 949},     {0x33D1, 0x33FF, 55, 0xFFFF},
+    {0x3400, 0x4DBF, 59, 0xFFFF},  {0x4DC0, 0x4DFF, 99, 0xFFFF},
+    {0x4E00, 0x9FA5, 59, 936},     {0x9FA6, 0x9FFF, 59, 0xFFFF},
+    {0xA000, 0xA48F, 83, 0xFFFF},  {0xA490, 0xA4CF, 83, 0xFFFF},
+    {0xA4D0, 0xA4FF, 999, 0xFFFF}, {0xA500, 0xA63F, 12, 0xFFFF},
+    {0xA640, 0xA69F, 9, 0xFFFF},   {0xA6A0, 0xA6FF, 999, 0xFFFF},
+    {0xA700, 0xA71F, 5, 0xFFFF},   {0xA720, 0xA7FF, 29, 0xFFFF},
+    {0xA800, 0xA82F, 100, 0xFFFF}, {0xA830, 0xA8FF, 999, 0xFFFF},
+    {0xA840, 0xA87F, 53, 0xFFFF},  {0xA880, 0xA8DF, 115, 0xFFFF},
+    {0xA8E0, 0xA8FF, 999, 0xFFFF}, {0xA900, 0xA92F, 116, 0xFFFF},
+    {0xA930, 0xA95F, 117, 0xFFFF}, {0xA960, 0xA9FF, 999, 0xFFFF},
+    {0xAA00, 0xAA5F, 118, 0xFFFF}, {0xAA60, 0xABFF, 999, 0xFFFF},
+    {0xAC00, 0xD7AF, 56, 949},     {0xD7B0, 0xD7FF, 999, 0xFFFF},
+    {0xD800, 0xDB7F, 57, 0xFFFF},  {0xDB80, 0xDBFF, 57, 0xFFFF},
+    {0xDC00, 0xDFFF, 57, 0xFFFF},  {0xE000, 0xE814, 60, 0xFFFF},
+    {0xE815, 0xE864, 60, 936},     {0xE865, 0xF8FF, 60, 0xFFFF},
+    {0xF900, 0xFA0B, 61, 949},     {0xFA0C, 0xFA0D, 61, 936},
+    {0xFA0E, 0xFA2D, 61, 932},     {0xFA2E, 0xFAFF, 61, 0xFFFF},
+    {0xFB00, 0xFB4F, 62, 0xFFFF},  {0xFB50, 0xFDFF, 63, 1256},
+    {0xFE00, 0xFE0F, 91, 0xFFFF},  {0xFE10, 0xFE1F, 65, 0xFFFF},
+    {0xFE20, 0xFE2F, 64, 0xFFFF},  {0xFE30, 0xFE4F, 65, 0xFFFF},
+    {0xFE50, 0xFE6F, 66, 0xFFFF},  {0xFE70, 0xFEFF, 67, 1256},
+    {0xFF00, 0xFF5F, 68, 936},     {0xFF60, 0xFF9F, 68, 932},
+    {0xFFA0, 0xFFEF, 68, 0xFFFF},
+};
+
+const FGAS_FONTUSB* FGAS_GetUnicodeBitField(FX_WCHAR wUnicode) {
+  int32_t iEnd = sizeof(g_FXGdiFontUSBTable) / sizeof(FGAS_FONTUSB) - 1;
+  FXSYS_assert(iEnd >= 0);
+  int32_t iStart = 0, iMid;
+  do {
+    iMid = (iStart + iEnd) / 2;
+    const FGAS_FONTUSB& usb = g_FXGdiFontUSBTable[iMid];
+    if (wUnicode < usb.wStartUnicode) {
+      iEnd = iMid - 1;
+    } else if (wUnicode > usb.wEndUnicode) {
+      iStart = iMid + 1;
+    } else {
+      return &usb;
+    }
+  } while (iStart <= iEnd);
+  return NULL;
+}