don't crash if one of GetAllCommands() parameters is NULL (coverity checker CID 11)

[wxWidgets.git] / src / common / imagbmp.cpp

diff --git a/src/common/imagbmp.cpp b/src/common/imagbmp.cpp
index 2198f362ae00f4b4d25cc78e9ddcc68869c5c9cb..5f9e5b072a0fda15765cf50c3c881f274b0ead32 100644 (file)
--- a/src/common/imagbmp.cpp
+++ b/src/common/imagbmp.cpp
@@ -7,10 +7,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "imagbmp.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -273,14 +269,16 @@ bool wxBMPHandler::SaveDib(wxImage *image,
     else if ( (format == wxBMP_8BPP_GREY) || (format == wxBMP_8BPP_RED) ||
               (format == wxBMP_1BPP_BW) )
     {
-        int i;
         rgbquad = new wxUint8 [palette_size*4];
 
-        for (i = 0; i < palette_size; i++)
+        for ( int i = 0; i < palette_size; i++ )
         {
-            // if 1BPP_BW then just 0 and 255 then exit
-            if (( i > 0) && (format == wxBMP_1BPP_BW)) i = 255;
-            rgbquad[i*4] = rgbquad[i*4+1] = rgbquad[i*4+2] = (wxUint8)i;
+            // if 1BPP_BW then the value should be either 0 or 255
+            wxUint8 c = (wxUint8)((i > 0) && (format == wxBMP_1BPP_BW) ? 255 : i);
+
+            rgbquad[i*4] =
+            rgbquad[i*4+1] =
+            rgbquad[i*4+2] = c;
             rgbquad[i*4+3] = 0;
         }
     }
@@ -865,8 +863,8 @@ bool wxBMPHandler::LoadDib(wxImage *image, wxInputStream& stream,
     offset = offset + wxINT32_SWAP_ON_BE(dbuf[2]);
 
     stream.Read(dbuf, 4 * 2);
-    int width = (int)wxINT32_SWAP_ON_BE(dbuf[0]);
-    int height = (int)wxINT32_SWAP_ON_BE(dbuf[1]);
+    int width = wxINT32_SWAP_ON_BE((int)dbuf[0]);
+    int height = wxINT32_SWAP_ON_BE((int)dbuf[1]);
     if ( !IsBmp)height = height  / 2; // for icons divide by 2
 
     if ( width > 32767 )
@@ -888,7 +886,7 @@ bool wxBMPHandler::LoadDib(wxImage *image, wxInputStream& stream,
             int planes = (int)wxUINT16_SWAP_ON_BE( aWord );
         */
     stream.Read(&aWord, 2);
-    int bpp = (int)wxUINT16_SWAP_ON_BE(aWord);
+    int bpp = wxUINT16_SWAP_ON_BE((int)aWord);
     if ( bpp != 1 && bpp != 4 && bpp != 8 && bpp != 16 && bpp != 24 && bpp != 32 )
     {
         if (verbose)
@@ -897,7 +895,7 @@ bool wxBMPHandler::LoadDib(wxImage *image, wxInputStream& stream,
     }
 
     stream.Read(dbuf, 4 * 4);
-    int comp = (int)wxINT32_SWAP_ON_BE(dbuf[0]);
+    int comp = wxINT32_SWAP_ON_BE((int)dbuf[0]);
     if ( comp != BI_RGB && comp != BI_RLE4 && comp != BI_RLE8 &&
          comp != BI_BITFIELDS )
     {
@@ -907,7 +905,7 @@ bool wxBMPHandler::LoadDib(wxImage *image, wxInputStream& stream,
     }
 
     stream.Read(dbuf, 4 * 2);
-    int ncolors = (int)wxINT32_SWAP_ON_BE( dbuf[0] );
+    int ncolors = wxINT32_SWAP_ON_BE( (int)dbuf[0] );
     if (ncolors == 0)
         ncolors = 1 << bpp;
     /* some more sanity checks */
@@ -1021,7 +1019,7 @@ bool wxICOHandler::SaveFile(wxImage *image,
         return false;
     }
 
-    int images = 1; // only generate one image
+    const int images = 1; // only generate one image
 
     // VS: This is a hack of sort - since ICO and CUR files are almost
     //     identical, we have all the meat in wxICOHandler and check for
@@ -1035,8 +1033,8 @@ bool wxICOHandler::SaveFile(wxImage *image,
 
     ICONDIR IconDir;
     IconDir.idReserved = 0;
-    IconDir.idType = (WORD)wxUINT16_SWAP_ON_BE(type);
-    IconDir.idCount = (WORD)wxUINT16_SWAP_ON_BE(images);
+    IconDir.idType = wxUINT16_SWAP_ON_BE((wxUint16)type);
+    IconDir.idCount = wxUINT16_SWAP_ON_BE((wxUint16)images);
     stream.Write(&IconDir.idReserved, sizeof(IconDir.idReserved));
     stream.Write(&IconDir.idType, sizeof(IconDir.idType));
     stream.Write(&IconDir.idCount, sizeof(IconDir.idCount));
@@ -1049,7 +1047,7 @@ bool wxICOHandler::SaveFile(wxImage *image,
 
     // for each iamage write a description ICONDIRENTRY:
     ICONDIRENTRY icondirentry;
-    for (int i = 0; i < images; i++)
+    for (int img = 0; img < images; img++)
     {
         wxImage mask;
 
@@ -1129,8 +1127,8 @@ bool wxICOHandler::SaveFile(wxImage *image,
 
         offset = offset + sizeof(ICONDIRENTRY);
 
-        icondirentry.bWidth = (BYTE)image->GetWidth();
-        icondirentry.bHeight = (BYTE)(2 * image->GetHeight());
+        icondirentry.bWidth = (wxUint8)image->GetWidth();
+        icondirentry.bHeight = (wxUint8)(2 * image->GetHeight());
         icondirentry.bColorCount = 0;
         icondirentry.bReserved = 0;
         icondirentry.wPlanes = wxUINT16_SWAP_ON_BE(1);