Fix many warnings about implicit integer conversions when compiling for 64 bits.

--HG--
branch : minor

src/modules/image/CompressedData.cpp

@@ -49,7 +49,7 @@ void *CompressedData::getData() const
 
 int CompressedData::getMipmapCount() const
 {
-	return dataImages.size();
+	return (int) dataImages.size();
 }
 
 size_t CompressedData::getSize(int miplevel) const

src/modules/image/magpie/ImageIOHandler.cpp

@@ -129,8 +129,8 @@ ImageIOHandler::DecodedImage ImageIOHandler::decode(love::filesystem::FileData *
 	if (!image)
 		throw love::Exception("Could not decode image!");
 
-	img.width = CGImageGetWidth(image);
-	img.height = CGImageGetHeight(image);
+	img.width  = (int) CGImageGetWidth(image);
+	img.height = (int) CGImageGetHeight(image);
 
 	CGImageAlphaInfo alphainfo = CGImageGetAlphaInfo(image);
 

src/modules/image/wrap_CompressedData.cpp

@@ -34,7 +34,7 @@ CompressedData *luax_checkcompresseddata(lua_State *L, int idx)
 int w_CompressedData_getWidth(lua_State *L)
 {
 	CompressedData *t = luax_checkcompresseddata(L, 1);
-	int miplevel = luaL_optinteger(L, 2, 1);
+	int miplevel = luaL_optint(L, 2, 1);
 	int width = 0;
 
 	luax_catchexcept(L, [&](){ width = t->getWidth(miplevel - 1); });
@@ -46,7 +46,7 @@ int w_CompressedData_getWidth(lua_State *L)
 int w_CompressedData_getHeight(lua_State *L)
 {
 	CompressedData *t = luax_checkcompresseddata(L, 1);
-	int miplevel = luaL_optinteger(L, 2, 1);
+	int miplevel = luaL_optint(L, 2, 1);
 	int height = 0;
 
 	luax_catchexcept(L, [&](){ height = t->getHeight(miplevel - 1); });
@@ -58,7 +58,7 @@ int w_CompressedData_getHeight(lua_State *L)
 int w_CompressedData_getDimensions(lua_State *L)
 {
 	CompressedData *t = luax_checkcompresseddata(L, 1);
-	int miplevel = luaL_optinteger(L, 2, 1);
+	int miplevel = luaL_optint(L, 2, 1);
 	int width = 0, height = 0;
 
 	luax_catchexcept(L, [&]()