Fix compilation with recoil with MSVC

Also fix handling of long extensions (more than 3 characters)

project/msvc/README.txt

@@ -1,6 +1,6 @@
 Project files for MS Visual Studio 2010 :
 
-By default the project expect SDL 1.2 SDL Image 1.2 and Lua 5.3 to be installed
+By default the project expects SDL 1.2, SDL Image 1.2 and Lua 5.3 to be installed
 in directories :
   ..\..\..\..\SDL-1.2.15
   ..\..\..\..\SDL_image-1.2.12
@@ -20,3 +20,8 @@ Download precompiled libraries from :
 
   http://luabinaries.sourceforge.net/
     https://sourceforge.net/projects/luabinaries/files/5.3.4/Windows%20Libraries/Static/
+
+
+Download recoil-4.2.0.tar.gz from https://sourceforge.net/projects/recoil/files/recoil/4.2.0/
+and copy recoil.c and recoil.h to src subdirectory.
+You can also disable RECOIL by defining the NORECOIL macro.

project/msvc/grafx2.vcxproj

@@ -125,6 +125,7 @@
     <ClInclude Include="..\..\src\readini.h" />
     <ClInclude Include="..\..\src\readline.h" />
     <ClInclude Include="..\..\src\realpath.h" />
+    <ClInclude Include="..\..\src\recoil.h" />
     <ClInclude Include="..\..\src\saveini.h" />
     <ClInclude Include="..\..\src\SDLMain.h" />
     <ClInclude Include="..\..\src\sdlscreen.h" />
@@ -161,6 +162,7 @@
     <ClCompile Include="..\..\src\keyboard.c" />
     <ClCompile Include="..\..\src\layers.c" />
     <ClCompile Include="..\..\src\libraw2crtc.c" />
+    <ClCompile Include="..\..\src\loadrecoil.c" />
     <ClCompile Include="..\..\src\loadsave.c" />
     <ClCompile Include="..\..\src\main.c" />
     <ClCompile Include="..\..\src\misc.c" />
@@ -184,6 +186,7 @@
     <ClCompile Include="..\..\src\readini.c" />
     <ClCompile Include="..\..\src\readline.c" />
     <ClCompile Include="..\..\src\realpath.c" />
+    <ClCompile Include="..\..\src\recoil.c" />
     <ClCompile Include="..\..\src\saveini.c" />
     <ClCompile Include="..\..\src\sdlscreen.c" />
     <ClCompile Include="..\..\src\setup.c" />

project/msvc/grafx2.vcxproj.filters

@@ -174,6 +174,9 @@
     <ClInclude Include="..\..\src\unicode.h">
       <Filter>Fichiers d%27en-tête</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\src\recoil.h">
+      <Filter>Fichiers d%27en-tête</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ResourceCompile Include="..\..\src\gfx2.rc">
@@ -340,5 +343,11 @@
     <ClCompile Include="..\..\src\version.c">
       <Filter>Fichiers sources</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\src\loadrecoil.c">
+      <Filter>Fichiers sources</Filter>
+    </ClCompile>
+    <ClCompile Include="..\..\src\recoil.c">
+      <Filter>Fichiers sources</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>

src/loadrecoil.c

@@ -18,6 +18,12 @@
     along with Grafx2; if not, see <http://www.gnu.org/licenses/>
 */
 
+#ifdef _MSC_VER
+#include <stdio.h>
+#if _MSC_VER < 1900
+#define snprintf _snprintf
+#endif
+#endif
 
 #include "struct.h"
 #include "global.h"
@@ -93,8 +99,25 @@ void Load_Recoil_Image(T_IO_Context *context)
   recoil = RECOIL_New();
   if (recoil)
   {
+#ifdef WIN32
+    char tempfilename[MAX_PATH_CHARACTERS];
+#endif
+    const char * filename = context->File_name;
     *(const RECOILVtbl **)recoil = &vtbl; // set Vtable
-    if (RECOIL_Decode(recoil, context->File_name, file_content, file_length))
+#ifdef WIN32
+    if (context->File_name_unicode != NULL && context->File_name_unicode[0] != 0)
+    {
+      // get the full file extension from the long filename (unicode)
+      // RECOIL doesn't recognize file if the "short" extension is passed,
+      // ie .DEE instead of .deep
+      int i;
+      for (i = 0; context->File_name_unicode[i] != 0 && i < sizeof(tempfilename) - 1; i++)
+        tempfilename[i] = (context->File_name_unicode[i] < 256) ? (char)context->File_name_unicode[i] : '_';
+      tempfilename[i] = '\0';
+      filename = tempfilename;
+    }
+#endif
+    if (RECOIL_Decode(recoil, filename, file_content, file_length))
     {
       int width, height;
       int original_width, original_height;