Sanity check the values of TRUE and FALSE.

core/src/fxge/dib/fx_dib_composite.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 "dib_int.h"
 const uint8_t _color_sqrt[256] = {
@@ skipping 4038 matching lines @@
   }
   return TRUE;
 }
 inline void _ScanlineCompositor_InitSourcePalette(FXDIB_Format src_format,
                                                   FXDIB_Format dest_format,
                                                   FX_DWORD*& pDestPalette,
                                                   FX_DWORD* pSrcPalette,
                                                   void* icc_module,
                                                   void* pIccTransform) {
   ICodec_IccModule* pIccModule = (ICodec_IccModule*)icc_module;
-  FX_BOOL isSrcCmyk = src_format & 0x0400 ? TRUE : FALSE;
-  FX_BOOL isDstCmyk = dest_format & 0x0400 ? TRUE : FALSE;
+  FX_BOOL isSrcCmyk = !!(src_format & 0x0400);
+  FX_BOOL isDstCmyk = !!(dest_format & 0x0400);
   pDestPalette = NULL;
   if (pIccTransform) {
     if (pSrcPalette) {
       if ((dest_format & 0xff) == 8) {
         int pal_count = 1 << (src_format & 0xff);
         uint8_t* gray_pal = FX_Alloc(uint8_t, pal_count);
         pDestPalette = (FX_DWORD*)gray_pal;
         for (int i = 0; i < pal_count; i++) {
           FX_DWORD color = isSrcCmyk ? FXCMYK_TODIB(pSrcPalette[i])
                                      : FXARGB_TODIB(pSrcPalette[i]);
@@ skipping 834 matching lines @@
                          color_p[2], color_p[1], color_p[0]);
     else if (!(alpha_flag >> 8) && IsCmykImage()) {
       return FALSE;
     }
   }
   if (!IsCmykImage()) {
     color_p[3] = (uint8_t)src_alpha;
   }
   int Bpp = m_bpp / 8;
   FX_BOOL bAlpha = HasAlpha();
-  FX_BOOL bArgb = GetFormat() == FXDIB_Argb ? TRUE : FALSE;
+  FX_BOOL bArgb = GetFormat() == FXDIB_Argb;
   if (src_alpha == 255) {
     for (int row = rect.top; row < rect.bottom; row++) {
       uint8_t* dest_scan = m_pBuffer + row * m_Pitch + rect.left * Bpp;
       uint8_t* dest_scan_alpha =
           m_pAlphaMask ? (uint8_t*)m_pAlphaMask->GetScanline(row) + rect.left
                        : NULL;
       if (dest_scan_alpha) {
         FXSYS_memset(dest_scan_alpha, 0xff, width);
       }
       if (Bpp == 4) {
@@ skipping 263 matching lines @@
   }
   src_alpha_scan = m_pScanlineAlphaV;
   dest_alpha_scan = dest_alpha_buf;
   if (dest_alpha_scan) {
     for (i = 0; i < m_DestHeight; i++) {
       *dest_alpha_scan = *src_alpha_scan++;
       dest_alpha_scan += y_alpha_step;
     }
   }
 }